/* roulang page: index */
:root {
            --color-primary: #0A0E27;
            --color-primary-2: #12163A;
            --color-accent: #00E5FF;
            --color-accent-soft: rgba(0, 229, 255, 0.12);
            --color-accent-2: #FFB300;
            --color-accent-2-soft: rgba(255, 179, 0, 0.14);
            --color-bg: #F5F6FA;
            --color-surface: #FFFFFF;
            --color-surface-dark: #161B3A;
            --color-surface-darker: #0C1028;
            --color-text: #1A1F36;
            --color-text-light: #F5F6FA;
            --color-text-muted: #6B7280;
            --color-text-muted-light: #B0B8C8;
            --color-border: rgba(26, 31, 54, 0.1);
            --color-border-light: rgba(255, 255, 255, 0.12);
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-nav: 14px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-card-dark: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 20px rgba(0, 229, 255, 0.35);
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            --container-max: 1200px;
            --gutter: 24px;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.85;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: var(--color-accent);
            text-decoration: none;
            transition: color var(--transition-base);
        }

        a:hover,
        a:focus {
            color: #00B8D4;
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 3px solid rgba(0, 229, 255, 0.6);
            outline-offset: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.35;
            color: var(--color-text);
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        @media (min-width: 768px) {
            .container {
                padding-left: 32px;
                padding-right: 32px;
            }
        }

        /* Navigation */
        .site-header {
            padding: 14px 20px;
            background: transparent;
            position: relative;
            z-index: 100;
            margin-bottom: 0;
        }

        .nav-panel {
            max-width: var(--container-max);
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.97);
            border-radius: var(--radius-nav);
            padding: 10px 18px;
            box-shadow: 0 6px 28px rgba(0, 0, 0, 0.08);
            border: 1px solid rgba(26, 31, 54, 0.06);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            transition: box-shadow var(--transition-base), border-color var(--transition-base);
        }

        .nav-panel:hover {
            box-shadow: 0 8px 36px rgba(0, 0, 0, 0.12);
            border-color: rgba(0, 229, 255, 0.2);
        }

        .nav-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: 0.03em;
            white-space: nowrap;
        }

        .nav-brand .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--color-accent) 0%, #00B8D4 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0A0E27;
            font-size: 1.1rem;
            flex-shrink: 0;
            box-shadow: 0 2px 10px rgba(0, 229, 255, 0.3);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 13px;
            border-radius: 8px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--color-text);
            transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base);
            border: 1px solid transparent;
            white-space: nowrap;
        }

        .nav-links a:hover,
        .nav-links a:focus {
            background: var(--color-accent-soft);
            color: #00A8C5;
            border-color: rgba(0, 229, 255, 0.25);
        }

        .nav-links a.active {
            background: var(--color-accent);
            color: #0A0E27;
            font-weight: 600;
            border-color: var(--color-accent);
            box-shadow: 0 2px 12px rgba(0, 229, 255, 0.3);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            border-radius: var(--radius-btn);
            background: linear-gradient(135deg, var(--color-accent) 0%, #00B8D4 100%);
            color: #0A0E27;
            font-weight: 600;
            font-size: 0.88rem;
            border: none;
            cursor: pointer;
            white-space: nowrap;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
        }

        .nav-cta:hover {
            box-shadow: var(--shadow-glow);
            transform: translateY(-1px);
            color: #0A0E27;
        }

        .nav-cta:active {
            transform: translateY(1px);
            box-shadow: 0 2px 8px rgba(0, 229, 255, 0.2);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.4rem;
            color: var(--color-text);
            cursor: pointer;
            padding: 6px;
            border-radius: 8px;
        }

        .nav-toggle:hover {
            background: var(--color-accent-soft);
            color: var(--color-accent);
        }

        @media (max-width: 991px) {
            .nav-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }

            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                padding-top: 12px;
                border-top: 1px solid rgba(26, 31, 54, 0.08);
            }

            .nav-links.open {
                display: flex;
            }

            .nav-links a {
                padding: 10px 14px;
                font-size: 0.92rem;
            }

            .nav-cta {
                display: none;
            }
        }

        @media (min-width: 992px) {
            .nav-panel {
                padding: 10px 22px;
            }

            .nav-links {
                gap: 4px;
            }
        }

        /* Hero */
        .hero-section {
            background: linear-gradient(160deg, #080B20 0%, #0E1330 40%, #151B42 70%, #1A2150 100%);
            padding: 40px 20px 72px;
            position: relative;
            overflow: hidden;
            margin-bottom: 0;
            min-height: 68vh;
            display: flex;
            align-items: center;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image:
                radial-gradient(1.5px 1.5px at 15% 30%, rgba(255, 255, 255, 0.4) 0%, transparent 60%),
                radial-gradient(1px 1px at 35% 60%, rgba(0, 229, 255, 0.3) 0%, transparent 50%),
                radial-gradient(2px 2px at 55% 25%, rgba(255, 179, 0, 0.25) 0%, transparent 55%),
                radial-gradient(1px 1px at 75% 50%, rgba(255, 255, 255, 0.35) 0%, transparent 45%),
                radial-gradient(1.5px 1.5px at 90% 70%, rgba(0, 229, 255, 0.2) 0%, transparent 50%),
                radial-gradient(1px 1px at 20% 80%, rgba(255, 179, 0, 0.3) 0%, transparent 50%);
            pointer-events: none;
            z-index: 1;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            top: -20%;
            right: -10%;
            width: 70%;
            height: 140%;
            background: radial-gradient(ellipse at center, rgba(0, 229, 255, 0.06) 0%, transparent 65%);
            pointer-events: none;
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 32px;
            align-items: center;
        }

        @media (min-width: 992px) {
            .hero-grid {
                grid-template-columns: 1.1fr 0.9fr;
                gap: 48px;
            }
        }

        .hero-text h1 {
            color: var(--color-text-light);
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 20px;
            letter-spacing: 0.02em;
            text-shadow: 0 0 30px rgba(0, 229, 255, 0.25);
            line-height: 1.3;
        }

        .hero-text h1 .highlight {
            color: var(--color-accent);
            text-shadow: 0 0 20px rgba(0, 229, 255, 0.5);
        }

        .hero-text .hero-desc {
            color: var(--color-text-muted-light);
            font-size: 1.05rem;
            line-height: 1.9;
            margin-bottom: 28px;
            max-width: 600px;
        }

        .hero-metrics {
            display: flex;
            flex-wrap: wrap;
            gap: 20px 32px;
            margin-bottom: 28px;
        }

        .hero-metrics .metric-item {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .hero-metrics .metric-value {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--color-accent);
            line-height: 1.2;
            letter-spacing: 0.02em;
        }

        .hero-metrics .metric-label {
            font-size: 0.82rem;
            color: var(--color-text-muted-light);
            letter-spacing: 0.04em;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 13px 28px;
            border-radius: var(--radius-btn);
            background: linear-gradient(135deg, var(--color-accent) 0%, #00B8D4 100%);
            color: #0A0E27;
            font-weight: 700;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: box-shadow var(--transition-base), transform var(--transition-base), background var(--transition-base);
        }

        .btn-primary-custom:hover {
            box-shadow: 0 6px 24px rgba(0, 229, 255, 0.45);
            transform: translateY(-2px);
            color: #0A0E27;
            background: linear-gradient(135deg, #33EBFF 0%, #00C8E0 100%);
        }

        .btn-primary-custom:active {
            transform: translateY(1px);
            box-shadow: 0 2px 10px rgba(0, 229, 255, 0.25);
        }

        .btn-secondary-custom {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 13px 28px;
            border-radius: var(--radius-btn);
            background: transparent;
            color: var(--color-accent);
            font-weight: 600;
            font-size: 0.95rem;
            border: 1.5px solid var(--color-accent);
            cursor: pointer;
            transition: background var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
        }

        .btn-secondary-custom:hover {
            background: rgba(0, 229, 255, 0.1);
            box-shadow: 0 0 16px rgba(0, 229, 255, 0.25);
            transform: translateY(-2px);
            color: var(--color-accent);
        }

        .btn-secondary-custom:active {
            transform: translateY(1px);
        }

        .hero-visual {
            position: relative;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: 0 16px 48px rgba(0, 0, 0, 0.45);
            border: 1px solid rgba(255, 255, 255, 0.12);
            min-height: 280px;
            background: linear-gradient(140deg, #161B3A 0%, #1E2450 55%, #252B5C 100%);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .hero-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 280px;
        }

        .hero-visual .visual-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 14, 39, 0.25) 0%, rgba(10, 14, 39, 0.6) 100%);
            display: flex;
            align-items: flex-end;
            padding: 28px;
        }

        .hero-visual .visual-card {
            background: rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 14px;
            padding: 18px 22px;
            width: 100%;
        }

        .hero-visual .visual-card h3 {
            color: #fff;
            font-size: 1.1rem;
            margin-bottom: 6px;
        }

        .hero-visual .visual-card p {
            color: var(--color-text-muted-light);
            font-size: 0.85rem;
            margin-bottom: 0;
        }

        @media (max-width: 575px) {
            .hero-section {
                padding: 28px 16px 56px;
                min-height: 55vh;
            }

            .hero-text h1 {
                font-size: 1.55rem;
            }

            .hero-text .hero-desc {
                font-size: 0.95rem;
            }

            .hero-metrics .metric-value {
                font-size: 1.4rem;
            }

            .hero-actions {
                flex-direction: column;
            }

            .btn-primary-custom,
            .btn-secondary-custom {
                width: 100%;
                justify-content: center;
            }

            .hero-visual {
                min-height: 220px;
            }
        }

        /* Section base */
        .section-block {
            padding: 64px 0;
            position: relative;
        }

        .section-block.dark {
            background: var(--color-primary-2);
            color: var(--color-text-light);
        }

        .section-block.dark h2,
        .section-block.dark h3,
        .section-block.dark h4 {
            color: var(--color-text-light);
        }

        .section-block.light {
            background: var(--color-bg);
            color: var(--color-text);
        }

        .section-block.white {
            background: var(--color-surface);
            color: var(--color-text);
        }

        .section-header {
            margin-bottom: 40px;
        }

        .section-header .section-tag {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            margin-bottom: 14px;
            text-transform: uppercase;
        }

        .section-header .section-tag.accent {
            background: var(--color-accent-soft);
            color: #00A8C5;
            border: 1px solid rgba(0, 229, 255, 0.25);
        }

        .section-header.dark .section-tag.accent {
            background: rgba(0, 229, 255, 0.15);
            color: var(--color-accent);
            border-color: rgba(0, 229, 255, 0.3);
        }

        .section-header h2 {
            font-size: 1.7rem;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: 0.01em;
        }

        .section-header p {
            font-size: 0.98rem;
            color: var(--color-text-muted);
            max-width: 720px;
            line-height: 1.8;
            margin-bottom: 0;
        }

        .section-block.dark .section-header p {
            color: var(--color-text-muted-light);
        }

        @media (min-width: 768px) {
            .section-block {
                padding: 80px 0;
            }

            .section-header h2 {
                font-size: 2rem;
            }
        }

        /* Comparison Table Section */
        .comparison-section {
            background: var(--color-surface);
            padding: 64px 0;
        }

        .comparison-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            background: #fff;
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.92rem;
            min-width: 720px;
        }

        .comparison-table th,
        .comparison-table td {
            padding: 16px 20px;
            border-bottom: 1px solid rgba(26, 31, 54, 0.08);
            text-align: left;
            vertical-align: middle;
        }

        .comparison-table th {
            background: #F7F8FC;
            font-weight: 700;
            color: var(--color-text);
            white-space: nowrap;
            font-size: 0.9rem;
        }

        .comparison-table td:first-child {
            font-weight: 600;
            color: var(--color-text);
        }

        .comparison-table .badge-yes {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(0, 229, 255, 0.12);
            color: #00A8C5;
        }

        .comparison-table .badge-partial {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(255, 179, 0, 0.15);
            color: #D48F00;
        }

        .comparison-table .badge-gold {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(255, 179, 0, 0.2);
            color: #B87D00;
        }

        /* Pricing / Recommended Tier */
        .pricing-section {
            background: linear-gradient(165deg, #0C1028 0%, #141A3D 55%, #1A2150 100%);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }

        .pricing-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image:
                radial-gradient(1px 1px at 20% 40%, rgba(255, 255, 255, 0.3) 0%, transparent 50%),
                radial-gradient(1.5px 1.5px at 60% 20%, rgba(0, 229, 255, 0.25) 0%, transparent 55%),
                radial-gradient(1px 1px at 80% 65%, rgba(255, 179, 0, 0.2) 0%, transparent 45%);
            pointer-events: none;
        }

        .pricing-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            position: relative;
            z-index: 2;
        }

        .pricing-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-card-dark);
            border-color: rgba(0, 229, 255, 0.3);
        }

        .pricing-card.featured {
            border-color: var(--color-accent);
            box-shadow: 0 8px 40px rgba(0, 229, 255, 0.2);
            background: rgba(0, 229, 255, 0.05);
        }

        .pricing-card .featured-badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 20px;
            background: var(--color-accent);
            color: #0A0E27;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.05em;
            margin-bottom: 16px;
        }

        .pricing-card h3 {
            color: var(--color-text-light);
            font-size: 1.3rem;
            margin-bottom: 8px;
        }

        .pricing-card .price {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--color-accent);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .pricing-card .price .unit {
            font-size: 1rem;
            font-weight: 500;
            color: var(--color-text-muted-light);
        }

        .pricing-card ul {
            margin-bottom: 22px;
        }

        .pricing-card ul li {
            padding: 8px 0;
            color: var(--color-text-muted-light);
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 10px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .pricing-card ul li:last-child {
            border-bottom: none;
        }

        .pricing-card ul li i {
            color: var(--color-accent);
            font-size: 0.85rem;
            width: 18px;
            text-align: center;
        }

        .pricing-card .btn-primary-custom {
            width: 100%;
            justify-content: center;
            padding: 12px 20px;
            font-size: 0.9rem;
        }

        /* News Section */
        .news-section {
            background: var(--color-bg);
            padding: 72px 0;
        }

        .news-layout {
            display: grid;
            grid-template-columns: 1fr;
            gap: 32px;
        }

        @media (min-width: 992px) {
            .news-layout {
                grid-template-columns: 1.25fr 0.75fr;
                gap: 40px;
            }
        }

        .news-list-item {
            display: flex;
            gap: 16px;
            padding: 16px 18px;
            background: #fff;
            border-radius: 12px;
            border: 1px solid var(--color-border);
            transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
            margin-bottom: 12px;
        }

        .news-list-item:hover {
            box-shadow: var(--shadow-card);
            transform: translateY(-2px);
            border-color: rgba(0, 229, 255, 0.3);
        }

        .news-list-item .news-date {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            white-space: nowrap;
            min-width: 72px;
            padding-top: 2px;
            font-weight: 500;
        }

        .news-list-item .news-content {
            flex: 1;
        }

        .news-list-item .news-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 6px;
            line-height: 1.5;
        }

        .news-list-item .news-excerpt {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            line-height: 1.7;
            margin-bottom: 8px;
        }

        .news-list-item .news-link {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--color-accent);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .news-list-item .news-link i {
            font-size: 0.75rem;
            transition: transform var(--transition-base);
        }

        .news-list-item .news-link:hover i {
            transform: translateX(4px);
        }

        .news-sidebar {
            background: var(--color-primary-2);
            border-radius: var(--radius-card);
            padding: 26px 24px;
            box-shadow: var(--shadow-card-dark);
            border: 1px solid var(--color-border-light);
        }

        .news-sidebar h3 {
            color: var(--color-text-light);
            font-size: 1.1rem;
            margin-bottom: 18px;
            padding-bottom: 12px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .news-sidebar .hot-item {
            display: flex;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .news-sidebar .hot-item:last-child {
            border-bottom: none;
        }

        .news-sidebar .hot-item .hot-rank {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--color-accent-2);
            min-width: 32px;
            line-height: 1.2;
        }

        .news-sidebar .hot-item .hot-title {
            font-size: 0.88rem;
            color: var(--color-text-muted-light);
            line-height: 1.5;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(140deg, #0C1028 0%, #1E2450 70%, #2A3168 100%);
            color: var(--color-text-light);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80%;
            height: 100%;
            background: radial-gradient(ellipse at top, rgba(0, 229, 255, 0.15) 0%, transparent 55%);
            pointer-events: none;
        }

        .cta-content {
            text-align: center;
            position: relative;
            z-index: 2;
        }

        .cta-content h2 {
            color: #fff;
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .cta-content p {
            color: var(--color-text-muted-light);
            font-size: 1.02rem;
            max-width: 600px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }

        /* FAQ Section */
        .faq-section {
            background: var(--color-surface);
            padding: 72px 0;
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: 12px;
            margin-bottom: 14px;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
            overflow: hidden;
        }

        .faq-item:hover {
            border-color: rgba(0, 229, 255, 0.3);
        }

        .faq-item.open {
            border-color: var(--color-accent);
            box-shadow: 0 4px 20px rgba(0, 229, 255, 0.12);
        }

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--color-text);
            text-align: left;
            transition: color var(--transition-base);
        }

        .faq-question:hover {
            color: #00A8C5;
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--color-accent-soft);
            color: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            transition: transform var(--transition-base), background var(--transition-base);
        }

        .faq-item.open .faq-question .faq-icon {
            transform: rotate(45deg);
            background: var(--color-accent);
            color: #0A0E27;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1), padding 0.35s ease;
            padding: 0 22px;
        }

        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 0 22px 20px;
        }

        .faq-answer p {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.85;
            margin-bottom: 0;
            border-top: 1px solid rgba(26, 31, 54, 0.08);
            padding-top: 16px;
        }

        /* Vertical Cards (竖屏种草) */
        .vertical-cards-section {
            background: var(--color-bg);
            padding: 72px 0;
        }

        .vertical-card {
            background: #fff;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .vertical-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.12);
            border-color: rgba(0, 229, 255, 0.3);
        }

        .vertical-card .card-img-wrap {
            position: relative;
            aspect-ratio: 4/3;
            overflow: hidden;
            background: #E5E7EB;
        }

        .vertical-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }

        .vertical-card:hover .card-img-wrap img {
            transform: scale(1.05);
        }

        .vertical-card .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 0.72rem;
            font-weight: 700;
            background: rgba(10, 14, 39, 0.75);
            color: var(--color-accent);
            backdrop-filter: blur(8px);
            letter-spacing: 0.04em;
        }

        .vertical-card .card-body-custom {
            padding: 18px 18px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .vertical-card .card-title {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 8px;
            line-height: 1.45;
        }

        .vertical-card .card-desc {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            line-height: 1.7;
            margin-bottom: 14px;
            flex: 1;
        }

        .vertical-card .card-btn {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-accent);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            cursor: pointer;
            background: none;
            border: none;
            padding: 0;
            transition: color var(--transition-base);
        }

        .vertical-card .card-btn:hover {
            color: #00A8C5;
        }

        .vertical-card .card-btn i {
            font-size: 0.75rem;
            transition: transform var(--transition-base);
        }

        .vertical-card .card-btn:hover i {
            transform: translateX(4px);
        }

        /* Beginner Guide (新手入门) */
        .beginner-section {
            background: var(--color-primary-2);
            color: var(--color-text-light);
            padding: 72px 0;
            position: relative;
        }

        .beginner-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: radial-gradient(1px 1px at 30% 20%, rgba(255, 255, 255, 0.25) 0%, transparent 50%);
            pointer-events: none;
        }

        .step-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-card);
            padding: 26px 22px;
            height: 100%;
            transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
            position: relative;
            z-index: 2;
        }

        .step-card:hover {
            transform: translateY(-4px);
            border-color: rgba(0, 229, 255, 0.3);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.25);
        }

        .step-card .step-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-accent);
            line-height: 1;
            margin-bottom: 14px;
            display: block;
        }

        .step-card h3 {
            color: #fff;
            font-size: 1.05rem;
            margin-bottom: 10px;
        }

        .step-card p {
            color: var(--color-text-muted-light);
            font-size: 0.88rem;
            line-height: 1.75;
            margin-bottom: 0;
        }

        /* Staircase / Tier Section (优惠阶梯) */
        .staircase-section {
            background: var(--color-surface);
            padding: 72px 0;
        }

        .staircase-card {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            height: 100%;
            position: relative;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            box-shadow: var(--shadow-card);
        }

        .staircase-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 10px 32px rgba(0, 0, 0, 0.1);
            border-color: rgba(0, 229, 255, 0.3);
        }

        .staircase-card .tier-level {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 700;
            letter-spacing: 0.05em;
            margin-bottom: 14px;
        }

        .staircase-card .tier-level.tier-1 {
            background: rgba(0, 229, 255, 0.12);
            color: #00A8C5;
        }

        .staircase-card .tier-level.tier-2 {
            background: rgba(255, 179, 0, 0.15);
            color: #D48F00;
        }

        .staircase-card .tier-level.tier-3 {
            background: rgba(0, 229, 255, 0.2);
            color: #007F95;
        }

        .staircase-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .staircase-card .tier-desc {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.75;
            margin-bottom: 18px;
        }

        .staircase-card .tier-benefits {
            margin-bottom: 20px;
        }

        .staircase-card .tier-benefits li {
            padding: 6px 0;
            font-size: 0.85rem;
            color: var(--color-text);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .staircase-card .tier-benefits li i {
            color: var(--color-accent);
            font-size: 0.8rem;
        }

        .staircase-card .btn-outline-accent {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            border: 1.5px solid var(--color-accent);
            color: var(--color-accent);
            background: transparent;
            font-weight: 600;
            font-size: 0.88rem;
            cursor: pointer;
            transition: background var(--transition-base), box-shadow var(--transition-base);
        }

        .staircase-card .btn-outline-accent:hover {
            background: var(--color-accent-soft);
            box-shadow: 0 0 14px rgba(0, 229, 255, 0.2);
        }

        /* Contact Form */
        .contact-section {
            background: linear-gradient(165deg, #0C1028 0%, #141A3D 60%, #1A2150 100%);
            color: var(--color-text-light);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }

        .contact-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: radial-gradient(1px 1px at 40% 30%, rgba(255, 255, 255, 0.3) 0%, transparent 50%);
            pointer-events: none;
        }

        .contact-wrap {
            display: grid;
            grid-template-columns: 1fr;
            gap: 40px;
            position: relative;
            z-index: 2;
        }

        @media (min-width: 992px) {
            .contact-wrap {
                grid-template-columns: 1fr 1fr;
                gap: 48px;
            }
        }

        .contact-form-card {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
        }

        .contact-form-card h3 {
            color: #fff;
            font-size: 1.25rem;
            margin-bottom: 22px;
        }

        .contact-form-card .form-label {
            color: var(--color-text-muted-light);
            font-size: 0.88rem;
            font-weight: 500;
            margin-bottom: 6px;
        }

        .contact-form-card .form-control {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: 8px;
            color: #fff;
            padding: 12px 16px;
            font-size: 0.92rem;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }

        .contact-form-card .form-control::placeholder {
            color: rgba(255, 255, 255, 0.35);
        }

        .contact-form-card .form-control:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.2);
            background: rgba(255, 255, 255, 0.12);
        }

        .contact-form-card textarea.form-control {
            min-height: 120px;
            resize: vertical;
        }

        .contact-form-card .form-select {
            background-color: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: 8px;
            color: #fff;
            padding: 12px 16px;
            font-size: 0.92rem;
        }

        .contact-form-card .form-select:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.2);
        }

        .contact-form-card .form-select option {
            background: #141A3D;
            color: #fff;
        }

        .contact-info-card {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .contact-info-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
        }

        .contact-info-item .info-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(0, 229, 255, 0.12);
            color: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .contact-info-item h4 {
            color: #fff;
            font-size: 0.95rem;
            margin-bottom: 4px;
        }

        .contact-info-item p {
            color: var(--color-text-muted-light);
            font-size: 0.88rem;
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* Footer */
        .site-footer {
            background: #080B20;
            color: var(--color-text-muted-light);
            padding: 56px 0 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 32px;
            margin-bottom: 40px;
        }

        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr;
                gap: 40px;
            }
        }

        @media (min-width: 992px) {
            .footer-grid {
                grid-template-columns: 2.5fr 1fr 1fr 1fr;
            }
        }

        .footer-brand h3 {
            color: #fff;
            font-size: 1.3rem;
            font-weight: 800;
            margin-bottom: 10px;
        }

        .footer-brand .footer-desc {
            font-size: 0.88rem;
            color: var(--color-text-muted-light);
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            font-size: 0.85rem;
            color: var(--color-text-muted-light);
            transition: color var(--transition-base);
        }

        .footer-col ul li a:hover {
            color: var(--color-accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            font-size: 0.8rem;
        }

        .footer-bottom .copyright {
            color: var(--color-text-muted-light);
        }

        .footer-bottom .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .footer-bottom .footer-links a {
            color: var(--color-text-muted-light);
            font-size: 0.8rem;
        }

        .footer-bottom .footer-links a:hover {
            color: var(--color-accent);
        }

        .footer-bottom .icp-info {
            color: var(--color-text-muted-light);
            font-size: 0.78rem;
            line-height: 1.6;
            width: 100%;
            text-align: center;
            padding-top: 8px;
        }

        /* Generic card */
        .generic-card {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 28px 24px;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            height: 100%;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
        }

        .generic-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 10px 32px rgba(0, 0, 0, 0.1);
            border-color: rgba(0, 229, 255, 0.3);
        }

        .generic-card .card-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            margin-bottom: 16px;
        }

        .generic-card .card-icon.cyan {
            background: var(--color-accent-soft);
            color: #00A8C5;
        }

        .generic-card .card-icon.orange {
            background: var(--color-accent-2-soft);
            color: #D48F00;
        }

        .generic-card h3 {
            font-size: 1.05rem;
            margin-bottom: 10px;
        }

        .generic-card p {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.75;
            margin-bottom: 0;
        }

        @media (max-width: 575px) {
            .section-block {
                padding: 48px 0;
            }

            .section-header h2 {
                font-size: 1.4rem;
            }

            .news-list-item {
                flex-direction: column;
                gap: 8px;
            }

            .news-list-item .news-date {
                min-width: auto;
            }

            .pricing-card {
                padding: 24px 20px;
            }

            .contact-form-card {
                padding: 24px 18px;
            }

            .staircase-card {
                padding: 20px 18px;
            }

            .vertical-card .card-body-custom {
                padding: 14px 14px 16px;
            }
        }

        @media (max-width: 767px) {
            .hero-grid {
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .footer-bottom .footer-links {
                justify-content: center;
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #0A0E27;
            --color-primary-2: #12163A;
            --color-accent: #00E5FF;
            --color-accent-soft: rgba(0, 229, 255, 0.12);
            --color-accent-2: #FFB300;
            --color-accent-2-soft: rgba(255, 179, 0, 0.14);
            --color-bg: #F5F6FA;
            --color-surface: #FFFFFF;
            --color-surface-dark: #161B3A;
            --color-surface-darker: #0C1028;
            --color-text: #1A1F36;
            --color-text-light: #F5F6FA;
            --color-text-muted: #6B7280;
            --color-text-muted-light: #B0B8C8;
            --color-border: rgba(26, 31, 54, 0.1);
            --color-border-light: rgba(255, 255, 255, 0.12);
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-nav: 14px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-card-dark: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 20px rgba(0, 229, 255, 0.35);
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            --container-max: 1200px;
            --gutter: 24px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.85;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: var(--color-accent);
            text-decoration: none;
            transition: color var(--transition-base);
        }

        a:hover,
        a:focus {
            color: #00B8D4;
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 3px solid rgba(0, 229, 255, 0.6);
            outline-offset: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 32px;
            padding-right: 32px;
        }

        /* Navigation */
        .site-header {
            padding: 14px 20px;
            background: transparent;
            position: relative;
            z-index: 100;
            margin-bottom: 0;
        }

        .nav-panel {
            max-width: var(--container-max);
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.97);
            border-radius: var(--radius-nav);
            padding: 10px 18px;
            box-shadow: 0 6px 28px rgba(0, 0, 0, 0.08);
            border: 1px solid rgba(26, 31, 54, 0.06);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            transition: box-shadow var(--transition-base), border-color var(--transition-base);
        }

        .nav-panel:hover {
            box-shadow: 0 8px 36px rgba(0, 0, 0, 0.12);
            border-color: rgba(0, 229, 255, 0.2);
        }

        .nav-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: 0.03em;
            white-space: nowrap;
        }

        .nav-brand .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--color-accent) 0%, #00B8D4 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0A0E27;
            font-size: 1.1rem;
            flex-shrink: 0;
            box-shadow: 0 2px 10px rgba(0, 229, 255, 0.3);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 13px;
            border-radius: 8px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--color-text);
            transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base);
            border: 1px solid transparent;
            white-space: nowrap;
        }

        .nav-links a:hover,
        .nav-links a:focus {
            background: var(--color-accent-soft);
            color: #00A8C5;
            border-color: rgba(0, 229, 255, 0.25);
        }

        .nav-links a.active {
            background: var(--color-accent);
            color: #0A0E27;
            font-weight: 600;
            border-color: var(--color-accent);
            box-shadow: 0 2px 12px rgba(0, 229, 255, 0.3);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            border-radius: var(--radius-btn);
            background: linear-gradient(135deg, var(--color-accent) 0%, #00B8D4 100%);
            color: #0A0E27;
            font-weight: 600;
            font-size: 0.88rem;
            border: none;
            cursor: pointer;
            white-space: nowrap;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
        }

        .nav-cta:hover,
        .nav-cta:focus {
            box-shadow: 0 0 18px rgba(0, 229, 255, 0.45);
            transform: translateY(-1px);
            color: #0A0E27;
        }

        .nav-cta:active {
            transform: translateY(0);
            box-shadow: 0 0 10px rgba(0, 229, 255, 0.3);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid var(--color-border);
            border-radius: 8px;
            width: 42px;
            height: 42px;
            font-size: 1.2rem;
            color: var(--color-primary);
            cursor: pointer;
            transition: background var(--transition-base), border-color var(--transition-base);
        }

        .nav-toggle:hover {
            background: var(--color-accent-soft);
            border-color: rgba(0, 229, 255, 0.35);
        }

        /* Hero */
        .category-hero {
            position: relative;
            background: linear-gradient(135deg, #0A0E27 0%, #12163A 50%, #1A2041 100%);
            padding: 70px 0 80px;
            color: var(--color-text-light);
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.35;
            z-index: 0;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 20% 30%, rgba(0, 229, 255, 0.18) 0%, transparent 45%),
                radial-gradient(ellipse at 80% 70%, rgba(255, 179, 0, 0.12) 0%, transparent 40%);
            z-index: 1;
        }

        .category-hero .container {
            position: relative;
            z-index: 2;
        }

        .hero-badge-row {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 14px;
            border-radius: 20px;
            background: rgba(0, 229, 255, 0.15);
            border: 1px solid rgba(0, 229, 255, 0.35);
            color: var(--color-accent);
            font-size: 0.82rem;
            font-weight: 600;
        }

        .hero-badge.warm {
            background: rgba(255, 179, 0, 0.16);
            border-color: rgba(255, 179, 0, 0.4);
            color: var(--color-accent-2);
        }

        .breadcrumb-nav {
            color: var(--color-text-muted-light);
            font-size: 0.85rem;
            margin-bottom: 18px;
        }

        .breadcrumb-nav a {
            color: var(--color-accent);
        }

        .breadcrumb-nav a:hover {
            color: #00E5FF;
        }

        .breadcrumb-nav .sep {
            margin: 0 8px;
            opacity: 0.6;
        }

        .category-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            letter-spacing: 0.02em;
            margin-bottom: 16px;
            color: #FFFFFF;
            line-height: 1.3;
        }

        .category-hero .hero-subtitle {
            font-size: 1.1rem;
            color: var(--color-text-muted-light);
            max-width: 720px;
            line-height: 1.9;
            margin-bottom: 28px;
        }

        .hero-meta-row {
            display: flex;
            align-items: center;
            gap: 28px;
            flex-wrap: wrap;
            margin-top: 10px;
        }

        .hero-meta-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--color-text-muted-light);
        }

        .hero-meta-item i {
            color: var(--color-accent);
        }

        /* Section common */
        .section-block {
            padding: 72px 0;
        }

        .section-block.dark {
            background: var(--color-surface-dark);
            color: var(--color-text-light);
        }

        .section-block.light {
            background: var(--color-bg);
        }

        .section-block.surface {
            background: var(--color-surface);
        }

        .section-head {
            margin-bottom: 44px;
        }

        .section-head h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--color-primary);
        }

        .section-block.dark .section-head h2 {
            color: #FFFFFF;
        }

        .section-head p {
            color: var(--color-text-muted);
            font-size: 1rem;
            max-width: 680px;
            line-height: 1.85;
        }

        .section-block.dark .section-head p {
            color: var(--color-text-muted-light);
        }

        /* Stats strip */
        .stats-strip {
            display: flex;
            flex-wrap: wrap;
            gap: 32px 48px;
            align-items: center;
            justify-content: center;
            padding: 32px 24px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border-light);
        }

        .stat-item {
            text-align: center;
            min-width: 120px;
        }

        .stat-item .stat-number {
            font-size: 2.3rem;
            font-weight: 800;
            color: var(--color-accent);
            letter-spacing: 0.02em;
            line-height: 1.2;
        }

        .stat-item .stat-label {
            font-size: 0.88rem;
            color: var(--color-text-muted-light);
            margin-top: 4px;
        }

        /* Cards */
        .content-card {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .content-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
            border-color: rgba(0, 229, 255, 0.35);
        }

        .content-card .card-img-wrap {
            position: relative;
            aspect-ratio: 16 / 9;
            background: var(--color-surface-dark);
            overflow: hidden;
        }

        .content-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }

        .content-card:hover .card-img-wrap img {
            transform: scale(1.04);
        }

        .content-card .card-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            flex-grow: 1;
        }

        .content-card .card-date {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            margin-bottom: 8px;
        }

        .content-card .card-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 10px;
            line-height: 1.45;
        }

        .content-card .card-text {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.75;
            flex-grow: 1;
            margin-bottom: 14px;
        }

        .content-card .card-link {
            font-size: 0.88rem;
            font-weight: 600;
            color: #00A8C5;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color var(--transition-base), gap var(--transition-base);
        }

        .content-card .card-link:hover {
            color: var(--color-accent);
            gap: 10px;
        }

        .tag-badge {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            background: var(--color-accent-soft);
            color: #00A8C5;
            border: 1px solid rgba(0, 229, 255, 0.25);
            margin-right: 6px;
            margin-bottom: 4px;
        }

        .tag-badge.warm {
            background: var(--color-accent-2-soft);
            color: #E6A100;
            border-color: rgba(255, 179, 0, 0.35);
        }

        /* Sidebar */
        .sidebar-card {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            padding: 24px;
            margin-bottom: 24px;
        }

        .sidebar-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--color-accent-soft);
        }

        .sidebar-pop-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px solid var(--color-border);
            transition: background var(--transition-base);
        }

        .sidebar-pop-item:last-of-type {
            border-bottom: none;
        }

        .sidebar-pop-item:hover {
            background: var(--color-accent-soft);
            border-radius: 6px;
        }

        .sidebar-pop-item img {
            width: 56px;
            height: 56px;
            border-radius: 10px;
            object-fit: cover;
            flex-shrink: 0;
        }

        .sidebar-pop-item .pop-info {
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--color-text);
            line-height: 1.4;
        }

        .sidebar-pop-item .pop-info small {
            display: block;
            font-size: 0.75rem;
            color: var(--color-text-muted);
            font-weight: 400;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-cloud a {
            padding: 5px 14px;
            border-radius: 20px;
            font-size: 0.82rem;
            font-weight: 500;
            background: var(--color-accent-soft);
            color: #00A8C5;
            border: 1px solid rgba(0, 229, 255, 0.25);
            transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base);
        }

        .tag-cloud a:hover {
            background: var(--color-accent);
            color: #0A0E27;
            border-color: var(--color-accent);
        }

        .subscribe-box {
            background: linear-gradient(135deg, var(--color-surface-dark) 0%, var(--color-primary) 100%);
            border-radius: var(--radius-card);
            padding: 24px;
            color: var(--color-text-light);
            text-align: center;
        }

        .subscribe-box h3 {
            color: #FFFFFF;
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            border: none;
            padding-bottom: 0;
        }

        .subscribe-box p {
            font-size: 0.85rem;
            color: var(--color-text-muted-light);
            margin-bottom: 16px;
        }

        .subscribe-box .btn-primary {
            background: linear-gradient(135deg, var(--color-accent) 0%, #00B8D4 100%);
            color: #0A0E27;
            font-weight: 600;
            border: none;
            border-radius: var(--radius-btn);
            padding: 9px 20px;
            width: 100%;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
        }

        .subscribe-box .btn-primary:hover {
            box-shadow: 0 0 18px rgba(0, 229, 255, 0.45);
            transform: translateY(-1px);
        }

        /* Buttons */
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 11px 24px;
            border-radius: var(--radius-btn);
            background: linear-gradient(135deg, var(--color-accent) 0%, #00B8D4 100%);
            color: #0A0E27;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
        }

        .btn-primary-custom:hover,
        .btn-primary-custom:focus {
            box-shadow: 0 0 22px rgba(0, 229, 255, 0.5);
            transform: translateY(-2px);
            color: #0A0E27;
        }

        .btn-primary-custom:active {
            transform: translateY(0);
            box-shadow: 0 0 10px rgba(0, 229, 255, 0.3);
        }

        .btn-secondary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 11px 24px;
            border-radius: var(--radius-btn);
            background: transparent;
            color: var(--color-accent);
            font-weight: 600;
            font-size: 0.95rem;
            border: 1px solid rgba(0, 229, 255, 0.45);
            cursor: pointer;
            transition: background var(--transition-base), border-color var(--transition-base), color var(--transition-base);
        }

        .btn-secondary-custom:hover,
        .btn-secondary-custom:focus {
            background: var(--color-accent-soft);
            border-color: var(--color-accent);
            color: #00B8D4;
        }

        /* FAQ */
        .faq-list .accordion-item {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card) !important;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .faq-list .accordion-button {
            font-weight: 600;
            font-size: 0.98rem;
            color: var(--color-primary);
            padding: 18px 22px;
            background: var(--color-surface);
            border-radius: var(--radius-card) !important;
            transition: color var(--transition-base), background var(--transition-base);
        }

        .faq-list .accordion-button:not(.collapsed) {
            color: #00A8C5;
            background: var(--color-accent-soft);
            box-shadow: none;
        }

        .faq-list .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.3);
            border-color: var(--color-accent);
        }

        .faq-list .accordion-body {
            font-size: 0.92rem;
            color: var(--color-text-muted);
            padding: 16px 22px 22px;
            line-height: 1.85;
        }

        /* CTA */
        .cta-panel {
            background: linear-gradient(135deg, #0A0E27 0%, #12163A 60%, #1A2041 100%);
            border-radius: var(--radius-card);
            padding: 56px 48px;
            color: var(--color-text-light);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-panel::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.2;
            z-index: 0;
        }

        .cta-panel>* {
            position: relative;
            z-index: 1;
        }

        .cta-panel h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 14px;
        }

        .cta-panel p {
            color: var(--color-text-muted-light);
            font-size: 1rem;
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.85;
        }

        /* Footer */
        .site-footer {
            background: var(--color-surface-darker);
            color: var(--color-text-muted-light);
            padding: 60px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 40px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: #FFFFFF;
            margin-bottom: 14px;
        }

        .footer-brand .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--color-accent) 0%, #00B8D4 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0A0E27;
            font-size: 1.05rem;
            flex-shrink: 0;
        }

        .footer-brand-col p {
            font-size: 0.88rem;
            color: var(--color-text-muted-light);
            line-height: 1.75;
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #FFFFFF;
            margin-bottom: 14px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            font-size: 0.88rem;
            color: var(--color-text-muted-light);
            transition: color var(--transition-base);
        }

        .footer-col ul li a:hover {
            color: var(--color-accent);
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid var(--color-border-light);
            font-size: 0.8rem;
        }

        .footer-bottom a {
            color: var(--color-accent);
        }

        .footer-bottom a:hover {
            color: #00E5FF;
        }

        /* Responsive */
        @media (max-width: 991px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }

            .category-hero h1 {
                font-size: 2.1rem;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }

            .footer-brand-col {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 767px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                border-radius: var(--radius-nav);
                padding: 16px;
                box-shadow: 0 10px 40px rgba(0, 0, 0, 0.16);
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                border: 1px solid rgba(26, 31, 54, 0.08);
                margin-top: 6px;
            }

            .nav-links.open {
                display: flex;
            }

            .nav-links a {
                padding: 10px 14px;
                border-radius: 8px;
                font-size: 0.92rem;
            }

            .nav-toggle {
                display: block;
            }

            .nav-cta {
                display: none;
            }

            .nav-panel {
                flex-wrap: nowrap;
            }

            .category-hero {
                padding: 50px 0 56px;
            }

            .category-hero h1 {
                font-size: 1.65rem;
            }

            .category-hero .hero-subtitle {
                font-size: 0.95rem;
            }

            .section-block {
                padding: 48px 0;
            }

            .section-head h2 {
                font-size: 1.4rem;
            }

            .stats-strip {
                gap: 20px 24px;
                padding: 22px 16px;
            }

            .stat-item .stat-number {
                font-size: 1.7rem;
            }

            .cta-panel {
                padding: 36px 20px;
            }

            .cta-panel h2 {
                font-size: 1.4rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 575px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .site-header {
                padding: 10px 12px;
            }

            .nav-brand {
                font-size: 1.15rem;
            }

            .nav-brand .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 0.95rem;
            }

            .category-hero h1 {
                font-size: 1.4rem;
            }

            .hero-meta-row {
                gap: 14px;
                flex-direction: column;
                align-items: flex-start;
            }

            .content-card .card-body {
                padding: 16px 16px 18px;
            }

            .sidebar-card {
                padding: 18px;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #0A0E27;
            --color-primary-2: #12163A;
            --color-accent: #00E5FF;
            --color-accent-soft: rgba(0, 229, 255, 0.12);
            --color-accent-2: #FFB300;
            --color-accent-2-soft: rgba(255, 179, 0, 0.14);
            --color-bg: #F5F6FA;
            --color-surface: #FFFFFF;
            --color-surface-dark: #161B3A;
            --color-surface-darker: #0C1028;
            --color-text: #1A1F36;
            --color-text-light: #F5F6FA;
            --color-text-muted: #6B7280;
            --color-text-muted-light: #B0B8C8;
            --color-border: rgba(26, 31, 54, 0.1);
            --color-border-light: rgba(255, 255, 255, 0.12);
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-nav: 14px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-card-dark: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 20px rgba(0, 229, 255, 0.35);
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            --container-max: 1200px;
            --gutter: 24px;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.85;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: var(--color-accent);
            text-decoration: none;
            transition: color var(--transition-base);
        }

        a:hover,
        a:focus {
            color: #00B8D4;
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 3px solid rgba(0, 229, 255, 0.6);
            outline-offset: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 32px;
            padding-right: 32px;
        }

        /* Navigation */
        .site-header {
            padding: 14px 20px;
            background: transparent;
            position: relative;
            z-index: 100;
            margin-bottom: 0;
        }

        .nav-panel {
            max-width: var(--container-max);
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.97);
            border-radius: var(--radius-nav);
            padding: 10px 18px;
            box-shadow: 0 6px 28px rgba(0, 0, 0, 0.08);
            border: 1px solid rgba(26, 31, 54, 0.06);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            transition: box-shadow var(--transition-base), border-color var(--transition-base);
        }

        .nav-panel:hover {
            box-shadow: 0 8px 36px rgba(0, 0, 0, 0.12);
            border-color: rgba(0, 229, 255, 0.2);
        }

        .nav-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: 0.03em;
            white-space: nowrap;
        }

        .nav-brand .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--color-accent) 0%, #00B8D4 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0A0E27;
            font-size: 1.1rem;
            flex-shrink: 0;
            box-shadow: 0 2px 10px rgba(0, 229, 255, 0.3);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 13px;
            border-radius: 8px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--color-text);
            transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base);
            border: 1px solid transparent;
            white-space: nowrap;
        }

        .nav-links a:hover,
        .nav-links a:focus {
            background: var(--color-accent-soft);
            color: #00A8C5;
            border-color: rgba(0, 229, 255, 0.25);
        }

        .nav-links a.active {
            background: var(--color-accent);
            color: #0A0E27;
            font-weight: 600;
            border-color: var(--color-accent);
            box-shadow: 0 2px 12px rgba(0, 229, 255, 0.3);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            border-radius: var(--radius-btn);
            background: linear-gradient(135deg, var(--color-accent) 0%, #00B8D4 100%);
            color: #0A0E27;
            font-weight: 600;
            font-size: 0.88rem;
            border: none;
            cursor: pointer;
            white-space: nowrap;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
        }

        .nav-cta:hover {
            box-shadow: 0 0 20px rgba(0, 229, 255, 0.4);
            transform: translateY(-1px);
            color: #0A0E27;
        }

        .nav-cta:active {
            transform: translateY(0);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.4rem;
            color: var(--color-text);
            cursor: pointer;
            padding: 6px 10px;
            border-radius: 8px;
            transition: background var(--transition-base);
        }

        .nav-toggle:hover {
            background: var(--color-accent-soft);
            color: #00A8C5;
        }

        /* Breadcrumb */
        .breadcrumb-wrapper {
            padding: 28px 20px 8px;
            max-width: var(--container-max);
            margin: 0 auto;
        }

        .breadcrumb-nav {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--color-text-muted);
        }

        .breadcrumb-nav li {
            display: flex;
            align-items: center;
        }

        .breadcrumb-nav li:not(:last-child)::after {
            content: '/';
            margin-left: 8px;
            color: var(--color-text-muted);
        }

        .breadcrumb-nav a {
            color: var(--color-text-muted);
            transition: color var(--transition-base);
        }

        .breadcrumb-nav a:hover {
            color: #00A8C5;
        }

        .breadcrumb-nav .current {
            color: var(--color-text);
            font-weight: 600;
        }

        /* Hero Resource Download Style */
        .hero-resource {
            background: var(--color-primary);
            background-image:
                radial-gradient(ellipse at 20% 30%, rgba(0, 229, 255, 0.12) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 70%, rgba(255, 179, 0, 0.08) 0%, transparent 60%),
                url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            padding: 88px 20px 96px;
            position: relative;
            overflow: hidden;
        }

        .hero-resource::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(10, 14, 39, 0.72);
            z-index: 1;
        }

        .hero-resource > .container {
            position: relative;
            z-index: 2;
        }

        .hero-resource .hero-content {
            max-width: 780px;
            margin: 0 auto;
            text-align: center;
        }

        .hero-resource .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 229, 255, 0.15);
            border: 1px solid rgba(0, 229, 255, 0.3);
            color: var(--color-accent);
            padding: 5px 14px;
            border-radius: 50px;
            font-size: 0.82rem;
            font-weight: 500;
            margin-bottom: 22px;
            letter-spacing: 0.02em;
        }

        .hero-resource h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.01em;
            margin-bottom: 18px;
            text-shadow: 0 0 40px rgba(0, 229, 255, 0.25);
        }

        .hero-resource .hero-subtitle {
            font-size: 1.12rem;
            color: rgba(245, 246, 250, 0.82);
            max-width: 640px;
            margin: 0 auto 40px;
            line-height: 1.7;
        }

        .hero-resource .search-box {
            max-width: 640px;
            margin: 0 auto 38px;
            display: flex;
            gap: 10px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: 50px;
            padding: 6px;
            backdrop-filter: blur(10px);
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }

        .hero-resource .search-box:focus-within {
            border-color: rgba(0, 229, 255, 0.6);
            box-shadow: 0 0 30px rgba(0, 229, 255, 0.25);
        }

        .hero-resource .search-box input {
            flex: 1;
            background: transparent;
            border: none;
            padding: 12px 22px;
            font-size: 1rem;
            color: #fff;
            outline: none;
            font-family: var(--font-sans);
        }

        .hero-resource .search-box input::placeholder {
            color: rgba(245, 246, 250, 0.55);
        }

        .hero-resource .search-box button {
            background: linear-gradient(135deg, var(--color-accent) 0%, #00B8D4 100%);
            border: none;
            border-radius: 50px;
            padding: 12px 28px;
            font-size: 0.95rem;
            font-weight: 600;
            color: #0A0E27;
            cursor: pointer;
            white-space: nowrap;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
            font-family: var(--font-sans);
        }

        .hero-resource .search-box button:hover {
            box-shadow: 0 0 24px rgba(0, 229, 255, 0.45);
            transform: translateY(-1px);
        }

        .hero-resource .search-box button:active {
            transform: translateY(0);
        }

        .hero-resource .quick-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
        }

        .hero-resource .quick-links .quick-label {
            color: rgba(245, 246, 250, 0.6);
            font-size: 0.85rem;
            display: flex;
            align-items: center;
            margin-right: 4px;
        }

        .hero-resource .quick-links a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: 50px;
            color: #fff;
            font-size: 0.85rem;
            font-weight: 500;
            transition: background var(--transition-base), border-color var(--transition-base), color var(--transition-base);
        }

        .hero-resource .quick-links a:hover {
            background: rgba(0, 229, 255, 0.2);
            border-color: rgba(0, 229, 255, 0.45);
            color: var(--color-accent);
        }

        /* Section Common */
        .section {
            padding: 72px 0;
        }

        .section-dark {
            background: var(--color-primary);
        }

        .section-light {
            background: var(--color-bg);
        }

        .section-surface {
            background: var(--color-surface);
        }

        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 12px;
            letter-spacing: 0.01em;
        }

        .section-dark .section-title {
            color: #fff;
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--color-text-muted);
            max-width: 680px;
            line-height: 1.8;
            margin-bottom: 40px;
        }

        .section-dark .section-subtitle {
            color: var(--color-text-muted-light);
        }

        /* Category Description */
        .category-desc-wrap {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 32px;
            box-shadow: var(--shadow-card);
        }

        .category-desc-wrap .category-title {
            font-size: 1.35rem;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--color-text);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .category-desc-wrap .category-title i {
            color: var(--color-accent);
        }

        .category-desc-wrap p {
            color: var(--color-text-muted);
            font-size: 1rem;
            line-height: 1.9;
            margin-bottom: 0;
        }

        /* Selling Points */
        .selling-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .selling-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .selling-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--color-accent), var(--color-accent-2));
            opacity: 0;
            transition: opacity var(--transition-base);
        }

        .selling-card:hover::before {
            opacity: 1;
        }

        .selling-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
            border-color: rgba(0, 229, 255, 0.25);
        }

        .selling-card .selling-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: var(--color-accent-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--color-accent);
            margin-bottom: 18px;
        }

        .selling-card:nth-child(2) .selling-icon {
            background: var(--color-accent-2-soft);
            color: var(--color-accent-2);
        }

        .selling-card:nth-child(3) .selling-icon {
            background: rgba(255, 179, 0, 0.12);
            color: #FF6D00;
        }

        .selling-card:nth-child(4) .selling-icon {
            background: rgba(0, 229, 255, 0.08);
            color: #00B8D4;
        }

        .selling-card h3 {
            font-size: 1.08rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--color-text);
        }

        .selling-card p {
            font-size: 0.92rem;
            color: var(--color-text-muted);
            line-height: 1.75;
            margin-bottom: 0;
        }

        /* Main List Area */
        .list-main-col {
            display: grid;
            gap: 24px;
        }

        .featured-entry {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            display: grid;
            grid-template-columns: 1fr 1fr;
            align-items: stretch;
            cursor: pointer;
        }

        .featured-entry:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
            border-color: rgba(0, 229, 255, 0.25);
        }

        .featured-entry .featured-img {
            min-height: 320px;
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .featured-entry .featured-img::after {
            content: '深度前瞻';
            position: absolute;
            top: 18px;
            left: 18px;
            background: var(--color-accent);
            color: #0A0E27;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 50px;
        }

        .featured-entry .featured-body {
            padding: 32px 28px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .featured-entry .featured-date {
            font-size: 0.82rem;
            color: var(--color-text-muted);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .featured-entry .featured-date i {
            color: var(--color-accent);
        }

        .featured-entry h3 {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 14px;
            line-height: 1.5;
        }

        .featured-entry p {
            font-size: 0.95rem;
            color: var(--color-text-muted);
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .btn-outline-accent {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 20px;
            border-radius: var(--radius-btn);
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--color-accent);
            border: 1.5px solid rgba(0, 229, 255, 0.45);
            background: transparent;
            transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base);
            font-family: var(--font-sans);
            cursor: pointer;
            text-decoration: none;
        }

        .btn-outline-accent:hover {
            background: rgba(0, 229, 255, 0.1);
            border-color: var(--color-accent);
            color: #00B8D4;
        }

        .grid-entries {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .entry-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
        }

        .entry-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
            border-color: rgba(0, 229, 255, 0.25);
        }

        .entry-card .entry-img {
            height: 180px;
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .entry-card .entry-body {
            padding: 20px 22px 24px;
        }

        .entry-card .entry-date {
            font-size: 0.78rem;
            color: var(--color-text-muted);
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .entry-card .entry-date i {
            color: var(--color-accent-2);
        }

        .entry-card h3 {
            font-size: 1.02rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 10px;
            line-height: 1.5;
        }

        .entry-card p {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .entry-link {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-accent);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition-base), color var(--transition-base);
        }

        .entry-link:hover {
            color: #00B8D4;
            gap: 10px;
        }

        .entry-link i {
            font-size: 0.75rem;
        }

        /* Sidebar */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }

        .sidebar-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 24px;
            box-shadow: var(--shadow-card);
        }

        .sidebar-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--color-border);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-card h3 i {
            color: var(--color-accent);
            font-size: 0.9rem;
        }

        .hot-entry {
            display: flex;
            gap: 14px;
            padding: 10px 0;
            border-bottom: 1px solid var(--color-border);
            align-items: center;
            transition: background var(--transition-base);
            border-radius: 8px;
            padding-left: 6px;
            padding-right: 6px;
        }

        .hot-entry:last-child {
            border-bottom: none;
        }

        .hot-entry:hover {
            background: rgba(0, 229, 255, 0.05);
        }

        .hot-entry .hot-img {
            width: 64px;
            height: 64px;
            border-radius: 8px;
            background-size: cover;
            background-position: center;
            flex-shrink: 0;
        }

        .hot-entry .hot-info {
            flex: 1;
            min-width: 0;
        }

        .hot-entry .hot-info a {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--color-text);
            display: block;
            line-height: 1.5;
            transition: color var(--transition-base);
        }

        .hot-entry .hot-info a:hover {
            color: #00A8C5;
        }

        .hot-entry .hot-info .hot-date {
            font-size: 0.75rem;
            color: var(--color-text-muted);
            margin-top: 4px;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-cloud a {
            display: inline-block;
            padding: 5px 14px;
            background: rgba(0, 229, 255, 0.08);
            border: 1px solid rgba(0, 229, 255, 0.2);
            border-radius: 50px;
            font-size: 0.8rem;
            color: #00A8C5;
            transition: background var(--transition-base), border-color var(--transition-base), color var(--transition-base);
        }

        .tag-cloud a:hover {
            background: var(--color-accent);
            border-color: var(--color-accent);
            color: #0A0E27;
            font-weight: 500;
        }

        .subscribe-mini-form {
            display: flex;
            gap: 8px;
        }

        .subscribe-mini-form input {
            flex: 1;
            padding: 10px 16px;
            border: 1px solid var(--color-border);
            border-radius: 8px;
            font-size: 0.88rem;
            color: var(--color-text);
            background: var(--color-bg);
            outline: none;
            font-family: var(--font-sans);
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }

        .subscribe-mini-form input:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.12);
        }

        .subscribe-mini-form button {
            padding: 10px 18px;
            background: var(--color-accent);
            color: #0A0E27;
            border: none;
            border-radius: 8px;
            font-size: 0.85rem;
            font-weight: 600;
            cursor: pointer;
            white-space: nowrap;
            transition: box-shadow var(--transition-base), background var(--transition-base);
            font-family: var(--font-sans);
        }

        .subscribe-mini-form button:hover {
            background: #00C4DC;
            box-shadow: 0 4px 16px rgba(0, 229, 255, 0.3);
        }

        /* Deep Content */
        .deep-content .deep-paragraph {
            font-size: 1rem;
            color: var(--color-text-muted);
            line-height: 2;
            margin-bottom: 20px;
        }

        .deep-content .deep-highlight {
            background: rgba(0, 229, 255, 0.06);
            border-left: 4px solid var(--color-accent);
            padding: 20px 24px;
            border-radius: 0 12px 12px 0;
            font-size: 0.95rem;
            color: var(--color-text);
            line-height: 1.9;
            margin-bottom: 20px;
        }

        /* Scenarios */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .scenario-card {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            padding: 26px 22px;
            box-shadow: var(--shadow-card);
            transition: transform var(--transition-base), border-color var(--transition-base);
        }

        .scenario-card:hover {
            transform: translateY(-3px);
            border-color: rgba(0, 229, 255, 0.25);
        }

        .scenario-card .scenario-num {
            font-size: 0.78rem;
            font-weight: 700;
            color: var(--color-accent-2);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 10px;
        }

        .scenario-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 10px;
        }

        .scenario-card p {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.75;
            margin-bottom: 0;
        }

        /* Process */
        .process-list {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .process-step {
            text-align: center;
            position: relative;
        }

        .process-step .step-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: rgba(0, 229, 255, 0.1);
            border: 2px solid rgba(0, 229, 255, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            color: var(--color-accent);
            margin: 0 auto 14px;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }

        .process-step:hover .step-icon {
            border-color: var(--color-accent);
            box-shadow: 0 0 24px rgba(0, 229, 255, 0.3);
        }

        .process-step h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: 0.85rem;
            color: rgba(245, 246, 250, 0.7);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* FAQ */
        .accordion-custom .accordion-item {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: 12px !important;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }

        .accordion-custom .accordion-item:has(.accordion-button:not(.collapsed)) {
            border-color: rgba(0, 229, 255, 0.35);
            box-shadow: 0 4px 24px rgba(0, 229, 255, 0.1);
        }

        .accordion-custom .accordion-button {
            background: transparent;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text);
            padding: 18px 20px;
            border-radius: 12px !important;
            box-shadow: none !important;
            transition: background var(--transition-base), color var(--transition-base);
        }

        .accordion-custom .accordion-button:not(.collapsed) {
            background: rgba(0, 229, 255, 0.06);
            color: #00A8C5;
        }

        .accordion-custom .accordion-button::after {
            transition: transform var(--transition-base);
        }

        .accordion-custom .accordion-body {
            font-size: 0.95rem;
            color: var(--color-text-muted);
            line-height: 1.85;
            padding: 8px 20px 20px;
        }

        /* CTA */
        .cta-section {
            background: var(--color-primary);
            background-image:
                radial-gradient(ellipse at 30% 40%, rgba(0, 229, 255, 0.1) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 60%, rgba(255, 179, 0, 0.07) 0%, transparent 60%);
            padding: 80px 0;
            text-align: center;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }

        .cta-section p {
            color: rgba(245, 246, 250, 0.8);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }

        .cta-btns {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            background: linear-gradient(135deg, var(--color-accent) 0%, #00B8D4 100%);
            color: #0A0E27;
            font-weight: 700;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
            font-family: var(--font-sans);
        }

        .btn-accent:hover {
            box-shadow: 0 0 30px rgba(0, 229, 255, 0.4);
            transform: translateY(-2px);
            color: #0A0E27;
        }

        .btn-accent:active {
            transform: translateY(0);
        }

        .btn-outline-light-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-btn);
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            border: 1.5px solid rgba(255, 255, 255, 0.35);
            cursor: pointer;
            transition: background var(--transition-base), border-color var(--transition-base), color var(--transition-base);
            font-family: var(--font-sans);
        }

        .btn-outline-light-custom:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(0, 229, 255, 0.6);
            color: var(--color-accent);
        }

        /* Footer */
        .site-footer {
            background: var(--color-surface-darker);
            padding: 64px 0 24px;
            color: var(--color-text-muted-light);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand-col p {
            font-size: 0.88rem;
            line-height: 1.8;
            color: var(--color-text-muted-light);
            margin-top: 14px;
            max-width: 280px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.03em;
        }

        .footer-brand .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--color-accent) 0%, #00B8D4 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0A0E27;
            font-size: 1rem;
            flex-shrink: 0;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            font-size: 0.85rem;
            color: var(--color-text-muted-light);
            transition: color var(--transition-base);
        }

        .footer-col ul li a:hover {
            color: var(--color-accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: rgba(176, 184, 200, 0.7);
        }

        .footer-beian {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            align-items: center;
        }

        .footer-beian a {
            color: rgba(176, 184, 200, 0.7);
            transition: color var(--transition-base);
        }

        .footer-beian a:hover {
            color: var(--color-accent);
        }

        /* Responsive */
        @media (max-width: 991px) {
            .hero-resource h1 {
                font-size: 2.2rem;
            }

            .selling-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .process-list {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px 20px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 767px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .nav-panel {
                flex-wrap: nowrap;
                padding: 10px 14px;
            }

            .nav-toggle {
                display: block;
            }

            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                gap: 4px;
                background: rgba(255, 255, 255, 0.97);
                border-radius: 12px;
                padding: 12px;
                margin-top: 10px;
                box-shadow: 0 8px 28px rgba(0, 0, 0, 0.12);
                border: 1px solid rgba(26, 31, 54, 0.06);
                max-height: 60vh;
                overflow-y: auto;
            }

            .nav-links.open {
                display: flex;
            }

            .nav-links a {
                width: 100%;
                padding: 10px 14px;
            }

            .nav-cta {
                display: none;
            }

            .nav-cta.mobile-show {
                display: inline-flex;
                width: 100%;
                justify-content: center;
                margin-top: 8px;
            }

            .hero-resource {
                padding: 56px 16px 64px;
            }

            .hero-resource h1 {
                font-size: 1.75rem;
            }

            .hero-resource .hero-subtitle {
                font-size: 0.95rem;
            }

            .hero-resource .search-box {
                flex-direction: column;
                gap: 8px;
                padding: 10px;
                border-radius: 16px;
            }

            .hero-resource .search-box input {
                padding: 10px 16px;
                font-size: 0.95rem;
            }

            .hero-resource .search-box button {
                width: 100%;
                padding: 12px;
            }

            .hero-resource .quick-links {
                gap: 8px;
            }

            .hero-resource .quick-links .quick-label {
                width: 100%;
                justify-content: center;
                margin-bottom: 4px;
            }

            .section {
                padding: 48px 0;
            }

            .section-title {
                font-size: 1.4rem;
            }

            .selling-grid {
                grid-template-columns: 1fr;
            }

            .featured-entry {
                grid-template-columns: 1fr;
            }

            .featured-entry .featured-img {
                min-height: 200px;
            }

            .grid-entries {
                grid-template-columns: 1fr;
            }

            .scenario-grid {
                grid-template-columns: 1fr;
            }

            .process-list {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                align-items: center;
            }
        }

        @media (max-width: 575px) {
            .hero-resource h1 {
                font-size: 1.5rem;
            }

            .section-title {
                font-size: 1.25rem;
            }

            .btn-accent,
            .btn-outline-light-custom {
                width: 100%;
                justify-content: center;
            }
        }

/* roulang page: category3 */
:root {
            --color-primary: #0A0E27;
            --color-primary-2: #12163A;
            --color-accent: #00E5FF;
            --color-accent-soft: rgba(0, 229, 255, 0.12);
            --color-accent-2: #FFB300;
            --color-accent-2-soft: rgba(255, 179, 0, 0.14);
            --color-bg: #F5F6FA;
            --color-surface: #FFFFFF;
            --color-surface-dark: #161B3A;
            --color-surface-darker: #0C1028;
            --color-text: #1A1F36;
            --color-text-light: #F5F6FA;
            --color-text-muted: #6B7280;
            --color-text-muted-light: #B0B8C8;
            --color-border: rgba(26, 31, 54, 0.1);
            --color-border-light: rgba(255, 255, 255, 0.12);
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-nav: 14px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-card-dark: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 20px rgba(0, 229, 255, 0.35);
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            --container-max: 1200px;
            --gutter: 24px;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.85;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            margin: 0;
        }

        a {
            color: var(--color-accent);
            text-decoration: none;
            transition: color var(--transition-base);
        }

        a:hover,
        a:focus {
            color: #00B8D4;
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 3px solid rgba(0, 229, 255, 0.6);
            outline-offset: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 32px;
            padding-right: 32px;
        }

        ul {
            padding-left: 0;
            list-style: none;
            margin-bottom: 0;
        }

        /* Navigation */
        .site-header {
            padding: 14px 20px;
            background: transparent;
            position: relative;
            z-index: 100;
            margin-bottom: 0;
        }

        .nav-panel {
            max-width: var(--container-max);
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.97);
            border-radius: var(--radius-nav);
            padding: 10px 18px;
            box-shadow: 0 6px 28px rgba(0, 0, 0, 0.08);
            border: 1px solid rgba(26, 31, 54, 0.06);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            transition: box-shadow var(--transition-base), border-color var(--transition-base);
        }

        .nav-panel:hover {
            box-shadow: 0 8px 36px rgba(0, 0, 0, 0.12);
            border-color: rgba(0, 229, 255, 0.2);
        }

        .nav-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: 0.03em;
            white-space: nowrap;
        }

        .nav-brand .brand-icon,
        .footer-brand .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--color-accent) 0%, #00B8D4 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0A0E27;
            font-size: 1.1rem;
            flex-shrink: 0;
            box-shadow: 0 2px 10px rgba(0, 229, 255, 0.3);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 13px;
            border-radius: 8px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--color-text);
            transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base);
            border: 1px solid transparent;
            white-space: nowrap;
        }

        .nav-links a:hover,
        .nav-links a:focus {
            background: var(--color-accent-soft);
            color: #00A8C5;
            border-color: rgba(0, 229, 255, 0.25);
        }

        .nav-links a.active {
            background: var(--color-accent);
            color: #0A0E27;
            font-weight: 600;
            border-color: var(--color-accent);
            box-shadow: 0 2px 12px rgba(0, 229, 255, 0.3);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            border-radius: var(--radius-btn);
            background: linear-gradient(135deg, var(--color-accent) 0%, #00B8D4 100%);
            color: #0A0E27;
            font-weight: 600;
            font-size: 0.88rem;
            border: none;
            cursor: pointer;
            white-space: nowrap;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
        }

        .nav-cta:hover,
        .nav-cta:focus {
            box-shadow: var(--shadow-glow);
            transform: translateY(-1px);
            color: #0A0E27;
        }

        .nav-cta:active {
            transform: translateY(0);
            box-shadow: none;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid rgba(26, 31, 54, 0.12);
            border-radius: 8px;
            padding: 8px 12px;
            font-size: 1.2rem;
            color: var(--color-text);
            cursor: pointer;
            transition: background var(--transition-base), border-color var(--transition-base);
        }

        .nav-toggle:hover {
            background: var(--color-accent-soft);
            border-color: var(--color-accent);
        }

        /* Category Hero */
        .category-hero {
            background: linear-gradient(180deg, #0A0E27 0%, #12163A 55%, #1A1F4D 100%);
            padding: 48px 0 72px;
            position: relative;
            overflow: hidden;
            color: var(--color-text-light);
        }

        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.25;
            z-index: 1;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 40%, rgba(0, 229, 255, 0.12) 0%, transparent 60%),
                radial-gradient(ellipse at 75% 65%, rgba(255, 179, 0, 0.08) 0%, transparent 50%);
            z-index: 2;
        }

        .category-hero .container {
            position: relative;
            z-index: 3;
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--color-text-muted-light);
            margin-bottom: 28px;
            flex-wrap: wrap;
        }

        .breadcrumb-nav a {
            color: var(--color-accent);
            transition: color var(--transition-base);
        }

        .breadcrumb-nav a:hover {
            color: #FFF;
        }

        .breadcrumb-nav .separator {
            color: rgba(255, 255, 255, 0.35);
        }

        .breadcrumb-nav .current {
            color: var(--color-accent-2);
        }

        .category-hero h1 {
            font-size: 2.5rem;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
            color: #FFFFFF;
        }

        .category-hero .hero-subtitle {
            font-size: 1.05rem;
            color: var(--color-text-muted-light);
            max-width: 680px;
            line-height: 1.9;
            margin-bottom: 28px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-top: 8px;
        }

        .btn-primary-cyan {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 11px 24px;
            border-radius: var(--radius-btn);
            background: linear-gradient(135deg, var(--color-accent) 0%, #00B8D4 100%);
            color: #0A0E27;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
        }

        .btn-primary-cyan:hover,
        .btn-primary-cyan:focus {
            box-shadow: var(--shadow-glow);
            transform: translateY(-1px);
            color: #0A0E27;
        }

        .btn-primary-cyan:active {
            transform: translateY(0);
        }

        .btn-outline-gold {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 11px 24px;
            border-radius: var(--radius-btn);
            background: transparent;
            border: 1px solid var(--color-accent-2);
            color: var(--color-accent-2);
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
        }

        .btn-outline-gold:hover,
        .btn-outline-gold:focus {
            background: var(--color-accent-2-soft);
            box-shadow: 0 0 16px rgba(255, 179, 0, 0.25);
            transform: translateY(-1px);
            color: var(--color-accent-2);
        }

        .btn-outline-gold:active {
            transform: translateY(0);
        }

        /* Layout with Sidebar */
        .content-section {
            padding: 56px 0 72px;
        }

        .content-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 32px;
            align-items: start;
        }

        .main-column {
            min-width: 0;
        }

        .sidebar {
            position: sticky;
            top: 90px;
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        /* Section Titles */
        .section-header {
            margin-bottom: 32px;
        }

        .section-tag {
            display: inline-block;
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.06em;
            color: var(--color-accent);
            background: var(--color-accent-soft);
            padding: 4px 12px;
            border-radius: 20px;
            margin-bottom: 10px;
            text-transform: uppercase;
        }

        .section-header h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
        }

        .section-header p {
            color: var(--color-text-muted);
            font-size: 0.95rem;
            max-width: 560px;
        }

        /* Large Horizontal Review Cards */
        .review-large-card {
            display: flex;
            background: var(--color-surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            overflow: hidden;
            margin-bottom: 28px;
            transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
        }

        .review-large-card:hover {
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
            transform: translateY(-2px);
            border-color: rgba(0, 229, 255, 0.3);
        }

        .review-large-card .review-img-wrap {
            flex: 0 0 300px;
            min-height: 220px;
            position: relative;
            overflow: hidden;
            background: linear-gradient(135deg, #1A1F4D 0%, #0A0E27 100%);
        }

        .review-large-card .review-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .review-large-card:hover .review-img-wrap img {
            transform: scale(1.04);
        }

        .review-large-card .review-img-wrap .score-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(10, 14, 39, 0.88);
            border: 1px solid rgba(0, 229, 255, 0.5);
            border-radius: 10px;
            padding: 6px 12px;
            color: var(--color-accent);
            font-weight: 700;
            font-size: 1.1rem;
            letter-spacing: 0.02em;
            backdrop-filter: blur(6px);
        }

        .review-large-card .review-body {
            padding: 24px 28px;
            display: flex;
            flex-direction: column;
            flex: 1;
            min-width: 0;
        }

        .review-large-card .review-meta {
            display: flex;
            gap: 14px;
            align-items: center;
            flex-wrap: wrap;
            font-size: 0.78rem;
            color: var(--color-text-muted);
            margin-bottom: 10px;
        }

        .review-large-card .review-meta .review-date {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .review-large-card .review-meta .review-cat {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: var(--color-accent-soft);
            color: #00A8C5;
            padding: 3px 10px;
            border-radius: 20px;
            font-weight: 500;
        }

        .review-large-card .review-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 10px;
            line-height: 1.5;
        }

        .review-large-card .review-excerpt {
            color: var(--color-text-muted);
            font-size: 0.9rem;
            line-height: 1.75;
            margin-bottom: 16px;
            flex: 1;
        }

        .review-large-card .review-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 16px;
        }

        .review-large-card .review-tags span {
            display: inline-block;
            font-size: 0.75rem;
            padding: 3px 10px;
            border-radius: 20px;
            background: #F0F1F5;
            color: var(--color-text-muted);
            border: 1px solid rgba(26, 31, 54, 0.06);
        }

        .review-large-card .review-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
        }

        .review-large-card .review-rating-stars {
            color: var(--color-accent-2);
            font-size: 0.85rem;
            letter-spacing: 0.1em;
        }

        .btn-read-review {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 16px;
            border-radius: 8px;
            background: transparent;
            border: 1px solid rgba(0, 229, 255, 0.4);
            color: #00A8C5;
            font-weight: 500;
            font-size: 0.85rem;
            cursor: pointer;
            transition: background var(--transition-base), color var(--transition-base), box-shadow var(--transition-base);
        }

        .btn-read-review:hover,
        .btn-read-review:focus {
            background: var(--color-accent-soft);
            color: #00A8C5;
            box-shadow: 0 0 12px rgba(0, 229, 255, 0.2);
        }

        .btn-read-review:active {
            transform: translateY(1px);
        }

        /* Sidebar */
        .sidebar-card {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            padding: 22px;
        }

        .sidebar-card h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--color-accent-soft);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-card h3 i {
            color: var(--color-accent);
            font-size: 0.9rem;
        }

        .sidebar-hot-item {
            display: flex;
            gap: 12px;
            align-items: center;
            margin-bottom: 14px;
            padding-bottom: 14px;
            border-bottom: 1px solid rgba(26, 31, 54, 0.06);
            transition: transform var(--transition-base);
        }

        .sidebar-hot-item:last-child {
            margin-bottom: 0;
            padding-bottom: 0;
            border-bottom: none;
        }

        .sidebar-hot-item:hover {
            transform: translateX(3px);
        }

        .sidebar-hot-item img {
            width: 52px;
            height: 52px;
            border-radius: 10px;
            object-fit: cover;
            flex-shrink: 0;
            background: linear-gradient(135deg, #1A1F4D 0%, #0A0E27 100%);
        }

        .sidebar-hot-item .hot-info {
            min-width: 0;
        }

        .sidebar-hot-item .hot-info h4 {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-text);
            margin-bottom: 3px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .sidebar-hot-item .hot-info .hot-score {
            font-size: 0.75rem;
            color: var(--color-accent-2);
            font-weight: 600;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-cloud a {
            display: inline-block;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.78rem;
            background: #F5F6FA;
            color: var(--color-text-muted);
            border: 1px solid rgba(26, 31, 54, 0.08);
            transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base);
        }

        .tag-cloud a:hover,
        .tag-cloud a:focus {
            background: var(--color-accent-soft);
            color: #00A8C5;
            border-color: rgba(0, 229, 255, 0.3);
        }

        .sidebar-subscribe {
            background: linear-gradient(135deg, #1A1F4D 0%, #0C1028 100%);
            color: #FFF;
            border: 1px solid var(--color-border-light);
        }

        .sidebar-subscribe h3 {
            color: #FFF;
            border-bottom-color: rgba(255, 255, 255, 0.15);
        }

        .sidebar-subscribe h3 i {
            color: var(--color-accent);
        }

        .sidebar-subscribe p {
            font-size: 0.85rem;
            color: var(--color-text-muted-light);
            margin-bottom: 16px;
        }

        .sidebar-subscribe .subscribe-input {
            width: 100%;
            padding: 9px 14px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.07);
            color: #FFF;
            font-size: 0.85rem;
            margin-bottom: 10px;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }

        .sidebar-subscribe .subscribe-input::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }

        .sidebar-subscribe .subscribe-input:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.2);
            outline: none;
        }

        .sidebar-subscribe .btn-subscribe {
            width: 100%;
            padding: 9px 16px;
            border-radius: 8px;
            background: var(--color-accent);
            color: #0A0E27;
            font-weight: 600;
            font-size: 0.85rem;
            border: none;
            cursor: pointer;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
        }

        .sidebar-subscribe .btn-subscribe:hover,
        .sidebar-subscribe .btn-subscribe:focus {
            box-shadow: var(--shadow-glow);
            transform: translateY(-1px);
        }

        .sidebar-subscribe .btn-subscribe:active {
            transform: translateY(0);
        }

        /* Rating Criteria Section */
        .criteria-section {
            background: linear-gradient(180deg, #0A0E27 0%, #12163A 70%, #0C1028 100%);
            padding: 56px 0 64px;
            color: var(--color-text-light);
            position: relative;
            overflow: hidden;
        }

        .criteria-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 20% 50%, rgba(0, 229, 255, 0.06) 0%, transparent 55%),
                radial-gradient(ellipse at 85% 40%, rgba(255, 179, 0, 0.05) 0%, transparent 45%);
            pointer-events: none;
        }

        .criteria-section .container {
            position: relative;
            z-index: 2;
        }

        .criteria-section .section-header h2 {
            color: #FFF;
        }

        .criteria-section .section-header p {
            color: var(--color-text-muted-light);
        }

        .criteria-section .section-tag {
            background: rgba(0, 229, 255, 0.15);
            color: var(--color-accent);
        }

        .criteria-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 8px;
        }

        .criteria-item {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--color-border-light);
            border-radius: 14px;
            padding: 22px 20px;
            text-align: center;
            transition: border-color var(--transition-base), background var(--transition-base), transform var(--transition-base);
        }

        .criteria-item:hover {
            border-color: rgba(0, 229, 255, 0.4);
            background: rgba(255, 255, 255, 0.07);
            transform: translateY(-3px);
        }

        .criteria-item .criteria-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--color-accent-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 12px;
            color: var(--color-accent);
            font-size: 1.3rem;
        }

        .criteria-item h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #FFF;
            margin-bottom: 8px;
        }

        .criteria-item p {
            font-size: 0.8rem;
            color: var(--color-text-muted-light);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* Use Cases Section */
        .use-cases-section {
            padding: 56px 0 72px;
            background: var(--color-bg);
        }

        .use-cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .use-case-card {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            padding: 26px 22px;
            transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
        }

        .use-case-card:hover {
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.1);
            transform: translateY(-3px);
            border-color: rgba(0, 229, 255, 0.3);
        }

        .use-case-card .use-case-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: var(--color-accent-2-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent-2);
            font-size: 1.15rem;
            margin-bottom: 14px;
        }

        .use-case-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
        }

        .use-case-card p {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.75;
            margin-bottom: 0;
        }

        /* Process Section */
        .process-section {
            background: linear-gradient(180deg, #12163A 0%, #0A0E27 100%);
            padding: 56px 0 64px;
            color: var(--color-text-light);
            position: relative;
        }

        .process-section .section-header h2 {
            color: #FFF;
        }

        .process-section .section-header p {
            color: var(--color-text-muted-light);
        }

        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 36px;
        }

        .process-step {
            text-align: center;
            position: relative;
        }

        .process-step::after {
            content: '\f054';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            top: 28px;
            right: -18px;
            color: rgba(255, 255, 255, 0.2);
            font-size: 0.8rem;
        }

        .process-step:last-child::after {
            display: none;
        }

        .process-step .step-number {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-accent) 0%, #00B8D4 100%);
            color: #0A0E27;
            font-weight: 700;
            font-size: 1.35rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            box-shadow: 0 0 20px rgba(0, 229, 255, 0.3);
        }

        .process-step h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: #FFF;
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: 0.8rem;
            color: var(--color-text-muted-light);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* FAQ Section */
        .faq-section {
            padding: 56px 0 72px;
            background: var(--color-bg);
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--color-surface);
            border-radius: 12px;
            border: 1px solid var(--color-border);
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }

        .faq-item.active {
            border-color: rgba(0, 229, 255, 0.4);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
        }

        .faq-question {
            width: 100%;
            padding: 16px 20px;
            background: none;
            border: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-primary);
            text-align: left;
            transition: color var(--transition-base);
        }

        .faq-question:hover {
            color: #00A8C5;
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--color-accent-soft);
            color: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            transition: transform var(--transition-base), background var(--transition-base), color var(--transition-base);
        }

        .faq-item.active .faq-question .faq-icon {
            transform: rotate(45deg);
            background: var(--color-accent);
            color: #0A0E27;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 20px;
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 20px 18px;
        }

        .faq-answer p {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.8;
            margin-bottom: 0;
            border-top: 1px solid rgba(26, 31, 54, 0.06);
            padding-top: 14px;
        }

        /* Bottom CTA */
        .bottom-cta {
            background: linear-gradient(135deg, #0A0E27 0%, #1A1F4D 60%, #0C1028 100%);
            padding: 56px 0 64px;
            text-align: center;
            color: #FFF;
            position: relative;
            overflow: hidden;
        }

        .bottom-cta::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.webp') center / cover no-repeat;
            opacity: 0.18;
        }

        .bottom-cta .container {
            position: relative;
            z-index: 2;
        }

        .bottom-cta h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: #FFF;
        }

        .bottom-cta p {
            font-size: 0.95rem;
            color: var(--color-text-muted-light);
            max-width: 520px;
            margin: 0 auto 24px;
        }

        .bottom-cta .cta-actions {
            display: flex;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* Footer */
        .site-footer {
            background: #0C1028;
            color: var(--color-text-muted-light);
            padding: 48px 0 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.2rem;
            font-weight: 700;
            color: #FFF;
            margin-bottom: 12px;
        }

        .footer-brand .brand-icon {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--color-accent) 0%, #00B8D4 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0A0E27;
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .footer-brand-col p {
            font-size: 0.82rem;
            color: var(--color-text-muted-light);
            line-height: 1.7;
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 600;
            color: #FFF;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            font-size: 0.82rem;
            color: var(--color-text-muted-light);
            transition: color var(--transition-base);
        }

        .footer-col ul li a:hover,
        .footer-col ul li a:focus {
            color: var(--color-accent);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 0.78rem;
            color: #8A90A8;
        }

        .footer-bottom a {
            color: var(--color-text-muted-light);
            font-size: 0.78rem;
            transition: color var(--transition-base);
        }

        .footer-bottom a:hover,
        .footer-bottom a:focus {
            color: var(--color-accent);
        }

        .footer-beian {
            display: flex;
            gap: 8px;
            align-items: center;
            flex-wrap: wrap;
        }

        /* Responsive */
        @media (max-width: 992px) {
            .content-layout {
                grid-template-columns: 1fr;
            }

            .sidebar {
                position: static;
                flex-direction: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }

            .criteria-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }

            .process-steps {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .process-step::after {
                display: none;
            }

            .use-cases-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding-left: 18px;
                padding-right: 18px;
            }

            .site-header {
                padding: 10px 12px;
            }

            .nav-panel {
                padding: 8px 12px;
                flex-wrap: nowrap;
            }

            .nav-brand {
                font-size: 1.1rem;
            }

            .nav-brand .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
                border-radius: 8px;
            }

            .nav-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }

            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 4px;
                padding-top: 10px;
                border-top: 1px solid rgba(26, 31, 54, 0.08);
                margin-top: 10px;
            }

            .nav-links.open {
                display: flex;
            }

            .nav-links a {
                width: 100%;
                padding: 10px 14px;
                font-size: 0.9rem;
                justify-content: flex-start;
            }

            .nav-cta {
                display: none;
            }

            .category-hero {
                padding: 32px 0 48px;
            }

            .category-hero h1 {
                font-size: 1.7rem;
            }

            .category-hero .hero-subtitle {
                font-size: 0.9rem;
            }

            .hero-actions {
                flex-direction: column;
                gap: 10px;
            }

            .hero-actions a,
            .hero-actions button {
                width: 100%;
                justify-content: center;
            }

            .content-section {
                padding: 36px 0 48px;
            }

            .section-header h2 {
                font-size: 1.3rem;
            }

            .review-large-card {
                flex-direction: column;
            }

            .review-large-card .review-img-wrap {
                flex: 0 0 auto;
                width: 100%;
                min-height: 190px;
                height: 190px;
            }

            .review-large-card .review-body {
                padding: 18px 18px 20px;
            }

            .review-large-card .review-title {
                font-size: 1.05rem;
            }

            .criteria-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }

            .use-cases-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .process-steps {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .sidebar {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .sidebar-card {
                padding: 18px;
            }

            .bottom-cta {
                padding: 40px 0 48px;
            }

            .bottom-cta h2 {
                font-size: 1.4rem;
            }

            .bottom-cta .cta-actions {
                flex-direction: column;
                gap: 10px;
                padding: 0 16px;
            }

            .bottom-cta .cta-actions a,
            .bottom-cta .cta-actions button {
                width: 100%;
                justify-content: center;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 14px;
                padding-right: 14px;
            }

            .category-hero h1 {
                font-size: 1.5rem;
            }

            .review-large-card .review-img-wrap {
                min-height: 160px;
                height: 160px;
            }

            .review-large-card .review-body {
                padding: 14px 14px 16px;
            }

            .review-large-card .review-footer {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .review-large-card .review-title {
                font-size: 0.98rem;
            }

            .review-large-card .review-excerpt {
                font-size: 0.83rem;
            }

            .criteria-section,
            .use-cases-section,
            .process-section,
            .faq-section {
                padding: 36px 0 44px;
            }
        }

/* roulang page: category4 */
:root {
  --color-primary: #0A0E27;
  --color-primary-2: #12163A;
  --color-accent: #00E5FF;
  --color-accent-soft: rgba(0, 229, 255, 0.12);
  --color-accent-2: #FFB300;
  --color-accent-2-soft: rgba(255, 179, 0, 0.14);
  --color-bg: #F5F6FA;
  --color-surface: #FFFFFF;
  --color-surface-dark: #161B3A;
  --color-surface-darker: #0C1028;
  --color-text: #1A1F36;
  --color-text-light: #F5F6FA;
  --color-text-muted: #6B7280;
  --color-text-muted-light: #B0B8C8;
  --color-border: rgba(26, 31, 54, 0.1);
  --color-border-light: rgba(255, 255, 255, 0.12);
  --radius-card: 16px;
  --radius-btn: 10px;
  --radius-nav: 14px;
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.06);
  --shadow-card-dark: 0 8px 32px rgba(0, 0, 0, 0.35);
  --shadow-glow: 0 0 20px rgba(0, 229, 255, 0.35);
  --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  --container-max: 1200px;
  --gutter: 24px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.85;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
a { color: var(--color-accent); text-decoration: none; transition: color var(--transition-base); }
a:hover, a:focus { color: #00B8D4; text-decoration: none; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 3px solid rgba(0, 229, 255, 0.6);
  outline-offset: 2px;
}
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
.container { max-width: var(--container-max); margin: 0 auto; padding-left: 32px; padding-right: 32px; }
.text-accent { color: var(--color-accent) !important; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0.55em 1.3em;
  border-radius: var(--radius-btn);
  font-weight: 600;
  font-size: 0.92rem;
  border: none;
  cursor: pointer;
  transition: box-shadow var(--transition-base), transform var(--transition-base), background var(--transition-base);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: linear-gradient(135deg, var(--color-accent) 0%, #00B8D4 100%);
  color: #0A0E27;
}
.btn-primary:hover, .btn-primary:focus {
  box-shadow: var(--shadow-glow);
  color: #0A0E27;
  transform: translateY(-1px);
}
.btn-outline-accent {
  background: transparent;
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
}
.btn-outline-accent:hover, .btn-outline-accent:focus {
  background: var(--color-accent-soft);
  color: #00A8C5;
  border-color: #00A8C5;
}
.btn-sm { padding: 0.4em 0.9em; font-size: 0.82rem; }
.site-header {
  padding: 14px 20px;
  background: transparent;
  position: relative;
  z-index: 100;
  margin-bottom: 0;
}
.nav-panel {
  max-width: var(--container-max);
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.97);
  border-radius: var(--radius-nav);
  padding: 10px 18px;
  box-shadow: 0 6px 28px rgba(0, 0, 0, 0.08);
  border: 1px solid rgba(26, 31, 54, 0.06);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  transition: box-shadow var(--transition-base), border-color var(--transition-base);
}
.nav-panel:hover { box-shadow: 0 8px 36px rgba(0, 0, 0, 0.12); border-color: rgba(0, 229, 255, 0.2); }
.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: 0.03em;
  white-space: nowrap;
}
.nav-brand .brand-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--color-accent) 0%, #00B8D4 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0A0E27;
  font-size: 1.1rem;
  flex-shrink: 0;
  box-shadow: 0 2px 10px rgba(0, 229, 255, 0.3);
}
.nav-links { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.nav-links a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 13px;
  border-radius: 8px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-text);
  transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base);
  border: 1px solid transparent;
  white-space: nowrap;
}
.nav-links a:hover, .nav-links a:focus {
  background: var(--color-accent-soft);
  color: #00A8C5;
  border-color: rgba(0, 229, 255, 0.25);
}
.nav-links a.active {
  background: var(--color-accent);
  color: #0A0E27;
  font-weight: 600;
  border-color: var(--color-accent);
  box-shadow: 0 2px 12px rgba(0, 229, 255, 0.3);
}
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-btn);
  background: linear-gradient(135deg, var(--color-accent) 0%, #00B8D4 100%);
  color: #0A0E27;
  font-weight: 600;
  font-size: 0.88rem;
  border: none;
  cursor: pointer;
  white-space: nowrap;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}
.nav-cta:hover, .nav-cta:focus { box-shadow: var(--shadow-glow); color: #0A0E27; transform: translateY(-1px); }
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
  font-size: 1.1rem;
  cursor: pointer;
  transition: background var(--transition-base), border-color var(--transition-base);
}
.nav-toggle:hover { background: var(--color-accent-soft); border-color: var(--color-accent); }
.category-hero {
  background: linear-gradient(180deg, #0C1028 0%, #12163A 60%, #F5F6FA 100%);
  padding: 56px 0 80px;
  position: relative;
  overflow: hidden;
}
.category-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.08) 0%, transparent 70%);
  pointer-events: none;
}
.category-hero::after {
  content: "";
  position: absolute;
  bottom: -120px;
  right: -80px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(255, 179, 0, 0.06) 0%, transparent 70%);
  pointer-events: none;
}
.breadcrumb-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--color-text-muted-light);
  margin-bottom: 20px;
  position: relative;
  z-index: 1;
}
.breadcrumb-wrap a { color: var(--color-accent); }
.breadcrumb-wrap a:hover { color: #00B8D4; }
.breadcrumb-wrap .separator { color: rgba(255, 255, 255, 0.4); }
.category-hero h1 {
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--color-text-light);
  margin-bottom: 16px;
  letter-spacing: 0.02em;
  position: relative;
  z-index: 1;
}
.category-hero .hero-desc {
  font-size: 1.05rem;
  color: var(--color-text-muted-light);
  max-width: 720px;
  line-height: 1.9;
  position: relative;
  z-index: 1;
}
.category-hero .hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 24px;
  position: relative;
  z-index: 1;
}
.category-hero .hero-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--color-text-muted-light);
}
.category-hero .hero-meta-item i { color: var(--color-accent); }
.main-content {
  margin-top: -40px;
  position: relative;
  z-index: 2;
}
.content-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 32px;
  align-items: start;
}
.article-list-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 12px;
}
.article-list-header h2 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-text);
}
.article-list-header .count-badge {
  background: var(--color-accent-soft);
  color: #00A8C5;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 20px;
  border: 1px solid rgba(0, 229, 255, 0.25);
}
.article-card {
  background: var(--color-surface);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
  height: 100%;
}
.article-card:hover {
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
  transform: translateY(-3px);
  border-color: rgba(0, 229, 255, 0.25);
}
.article-card .card-img-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, #1A1F36 0%, #0A0E27 100%);
}
.article-card .card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}
.article-card:hover .card-img-wrap img { transform: scale(1.04); }
.article-card .card-date {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(10, 14, 39, 0.85);
  color: #fff;
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: 6px;
  backdrop-filter: blur(4px);
  letter-spacing: 0.02em;
}
.article-card .card-tag {
  position: absolute;
  top: 14px;
  right: 14px;
  background: var(--color-accent);
  color: #0A0E27;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 6px;
}
.article-card .card-body {
  padding: 20px 22px 22px;
}
.article-card .card-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 10px;
  line-height: 1.5;
}
.article-card .card-title a { color: var(--color-text); }
.article-card .card-title a:hover { color: #00A8C5; }
.article-card .card-excerpt {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.75;
  margin-bottom: 16px;
}
.article-card .card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-accent);
}
.article-card .card-link:hover { color: #00B8D4; }
.article-card .card-link i { transition: transform var(--transition-base); }
.article-card .card-link:hover i { transform: translateX(4px); }
.article-card.lead-card {
  margin-bottom: 28px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: stretch;
}
.article-card.lead-card .card-img-wrap {
  aspect-ratio: auto;
  min-height: 280px;
}
.article-card.lead-card .card-body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 30px 32px;
}
.article-card.lead-card .card-title {
  font-size: 1.4rem;
  margin-bottom: 14px;
}
.article-card.lead-card .card-excerpt {
  font-size: 0.95rem;
  margin-bottom: 20px;
}
.article-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.sidebar-card {
  background: var(--color-surface);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-border);
  padding: 22px;
  margin-bottom: 24px;
}
.sidebar-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-accent-soft);
  display: flex;
  align-items: center;
  gap: 8px;
}
.sidebar-card h3 i { color: var(--color-accent); font-size: 0.95rem; }
.hot-item {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px dashed var(--color-border);
}
.hot-item:last-child { border-bottom: none; padding-bottom: 0; }
.hot-item .hot-thumb {
  width: 64px;
  height: 48px;
  border-radius: 8px;
  overflow: hidden;
  flex-shrink: 0;
  background: linear-gradient(135deg, #1A1F36 0%, #0A0E27 100%);
}
.hot-item .hot-thumb img { width: 100%; height: 100%; object-fit: cover; }
.hot-item .hot-info { flex: 1; min-width: 0; }
.hot-item .hot-info a {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.hot-item .hot-info a:hover { color: #00A8C5; }
.hot-item .hot-date {
  font-size: 0.72rem;
  color: var(--color-text-muted);
  margin-top: 2px;
}
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tag-cloud a {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--color-text-muted);
  padding: 5px 12px;
  border-radius: 20px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base);
}
.tag-cloud a:hover {
  background: var(--color-accent-soft);
  color: #00A8C5;
  border-color: rgba(0, 229, 255, 0.3);
}
.subscribe-card {
  background: linear-gradient(160deg, var(--color-surface-dark) 0%, var(--color-primary) 100%);
  border: 1px solid var(--color-border-light);
  color: var(--color-text-light);
}
.subscribe-card h3 { color: var(--color-text-light); border-bottom-color: rgba(255, 255, 255, 0.15); }
.subscribe-card h3 i { color: var(--color-accent); }
.subscribe-card p {
  font-size: 0.85rem;
  color: var(--color-text-muted-light);
  margin-bottom: 16px;
}
.subscribe-card .subscribe-form {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.subscribe-card .subscribe-form input {
  flex: 1;
  min-width: 0;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  padding: 10px 14px;
  color: var(--color-text-light);
  font-size: 0.85rem;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}
.subscribe-card .subscribe-form input::placeholder { color: rgba(255, 255, 255, 0.5); }
.subscribe-card .subscribe-form input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.15);
}
.subscribe-card .subscribe-form .btn {
  flex-shrink: 0;
  padding: 10px 16px;
}
.cta-section {
  margin-top: 60px;
  background: linear-gradient(150deg, var(--color-surface-dark) 0%, var(--color-primary-2) 50%, var(--color-primary) 100%);
  border-radius: var(--radius-card);
  padding: 48px 40px;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--color-border-light);
}
.cta-section::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -60px;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(0, 229, 255, 0.1) 0%, transparent 70%);
  pointer-events: none;
}
.cta-section::after {
  content: "";
  position: absolute;
  bottom: -60px;
  left: -40px;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(255, 179, 0, 0.08) 0%, transparent 70%);
  pointer-events: none;
}
.cta-section .cta-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.cta-section h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-text-light);
  margin-bottom: 12px;
}
.cta-section p {
  color: var(--color-text-muted-light);
  font-size: 0.95rem;
  max-width: 560px;
  line-height: 1.8;
}
.cta-section .btn {
  flex-shrink: 0;
}
.site-footer {
  background: var(--color-surface-darker);
  color: var(--color-text-muted-light);
  padding: 60px 0 30px;
  margin-top: 60px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand-col .footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--color-text-light);
  margin-bottom: 14px;
}
.footer-brand-col .footer-brand .brand-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--color-accent) 0%, #00B8D4 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0A0E27;
  font-size: 1rem;
  flex-shrink: 0;
}
.footer-brand-col p {
  font-size: 0.85rem;
  line-height: 1.8;
  color: var(--color-text-muted-light);
  max-width: 280px;
}
.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-text-light);
  margin-bottom: 16px;
}
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a {
  font-size: 0.85rem;
  color: var(--color-text-muted-light);
  transition: color var(--transition-base);
}
.footer-col ul li a:hover { color: var(--color-accent); }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.82rem;
  color: var(--color-text-muted-light);
}
.footer-bottom a { color: var(--color-text-muted-light); }
.footer-bottom a:hover { color: var(--color-accent); }
.footer-beian { display: flex; flex-wrap: wrap; gap: 4px; }
.sidebar-sticky {
  position: sticky;
  top: 110px;
}
@media (max-width: 991.98px) {
  .content-grid { grid-template-columns: 1fr; }
  .sidebar-sticky { position: static; }
  .article-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 767.98px) {
  .container { padding-left: 20px; padding-right: 20px; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    border-radius: 0 0 var(--radius-nav) var(--radius-nav);
    padding: 16px 20px;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
    border: 1px solid var(--color-border);
    border-top: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a { justify-content: flex-start; padding: 10px 14px; font-size: 0.95rem; }
  .nav-toggle { display: flex; }
  .nav-cta { display: none; }
  .category-hero { padding: 40px 0 60px; }
  .category-hero h1 { font-size: 1.8rem; }
  .category-hero .hero-desc { font-size: 0.95rem; }
  .article-card.lead-card { grid-template-columns: 1fr; }
  .article-card.lead-card .card-img-wrap { aspect-ratio: 16/9; min-height: auto; }
  .article-card.lead-card .card-body { padding: 22px; }
  .article-card.lead-card .card-title { font-size: 1.15rem; }
  .article-grid { grid-template-columns: 1fr; }
  .cta-section .cta-grid { grid-template-columns: 1fr; text-align: center; }
  .cta-section p { margin-left: auto; margin-right: auto; }
  .cta-section .btn { margin: 0 auto; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 575.98px) {
  .container { padding-left: 16px; padding-right: 16px; }
  .container { padding-left: 20px; padding-right: 20px; }
  .nav-panel { padding: 8px 12px; }
  .nav-brand { font-size: 1.15rem; }
  .nav-brand .brand-icon { width: 32px; height: 32px; font-size: 0.9rem; }
  .category-hero { padding: 32px 0 56px; }
  .category-hero h1 { font-size: 1.5rem; }
  .category-hero .hero-meta { flex-direction: column; gap: 8px; }
  .article-list-header { flex-direction: column; align-items: flex-start; }
  .article-card.lead-card { margin-bottom: 20px; }
  .article-grid { gap: 16px; }
  .cta-section { padding: 32px 20px; }
  .cta-section h2 { font-size: 1.3rem; }
}

/* roulang page: category5 */
:root {
            --color-primary: #0A0E27;
            --color-primary-2: #12163A;
            --color-accent: #00E5FF;
            --color-accent-soft: rgba(0, 229, 255, 0.12);
            --color-accent-2: #FFB300;
            --color-accent-2-soft: rgba(255, 179, 0, 0.14);
            --color-bg: #F5F6FA;
            --color-surface: #FFFFFF;
            --color-surface-dark: #161B3A;
            --color-surface-darker: #0C1028;
            --color-text: #1A1F36;
            --color-text-light: #F5F6FA;
            --color-text-muted: #6B7280;
            --color-text-muted-light: #B0B8C8;
            --color-border: rgba(26, 31, 54, 0.1);
            --color-border-light: rgba(255, 255, 255, 0.12);
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-nav: 14px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-card-dark: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 20px rgba(0, 229, 255, 0.35);
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            --container-max: 1200px;
            --gutter: 24px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.85;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: var(--color-accent);
            text-decoration: none;
            transition: color var(--transition-base);
        }

        a:hover,
        a:focus {
            color: #00B8D4;
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 3px solid rgba(0, 229, 255, 0.6);
            outline-offset: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 32px;
            padding-right: 32px;
        }

        /* Navigation */
        .site-header {
            padding: 14px 20px;
            background: transparent;
            position: relative;
            z-index: 100;
            margin-bottom: 0;
        }

        .nav-panel {
            max-width: var(--container-max);
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.97);
            border-radius: var(--radius-nav);
            padding: 10px 18px;
            box-shadow: 0 6px 28px rgba(0, 0, 0, 0.08);
            border: 1px solid rgba(26, 31, 54, 0.06);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            transition: box-shadow var(--transition-base), border-color var(--transition-base);
        }

        .nav-panel:hover {
            box-shadow: 0 8px 36px rgba(0, 0, 0, 0.12);
            border-color: rgba(0, 229, 255, 0.2);
        }

        .nav-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: 0.03em;
            white-space: nowrap;
        }

        .nav-brand .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--color-accent) 0%, #00B8D4 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0A0E27;
            font-size: 1.1rem;
            flex-shrink: 0;
            box-shadow: 0 2px 10px rgba(0, 229, 255, 0.3);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 13px;
            border-radius: 8px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--color-text);
            transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base);
            border: 1px solid transparent;
            white-space: nowrap;
        }

        .nav-links a:hover,
        .nav-links a:focus {
            background: var(--color-accent-soft);
            color: #00A8C5;
            border-color: rgba(0, 229, 255, 0.25);
        }

        .nav-links a.active {
            background: var(--color-accent);
            color: #0A0E27;
            font-weight: 600;
            border-color: var(--color-accent);
            box-shadow: 0 2px 12px rgba(0, 229, 255, 0.3);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            border-radius: var(--radius-btn);
            background: linear-gradient(135deg, var(--color-accent) 0%, #00B8D4 100%);
            color: #0A0E27;
            font-weight: 600;
            font-size: 0.88rem;
            border: none;
            cursor: pointer;
            white-space: nowrap;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
        }

        .nav-cta:hover,
        .nav-cta:focus {
            box-shadow: var(--shadow-glow);
            color: #0A0E27;
            transform: translateY(-1px);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid var(--color-border);
            border-radius: 8px;
            padding: 8px 12px;
            font-size: 1.1rem;
            color: var(--color-primary);
            cursor: pointer;
            transition: background var(--transition-base), border-color var(--transition-base);
        }

        .nav-toggle:hover {
            background: var(--color-accent-soft);
            border-color: rgba(0, 229, 255, 0.3);
        }

        /* Category Page Header */
        .page-header {
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-2) 55%, #1E2550 100%);
            padding: 48px 0 72px;
            position: relative;
            overflow: hidden;
        }

        .page-header::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 360px;
            height: 360px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 229, 255, 0.18) 0%, transparent 70%);
            pointer-events: none;
        }

        .page-header::after {
            content: '';
            position: absolute;
            bottom: -140px;
            left: 10%;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 179, 0, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .page-header .container {
            position: relative;
            z-index: 1;
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.82rem;
            color: var(--color-text-muted-light);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .breadcrumb-nav a {
            color: var(--color-accent);
            transition: color var(--transition-base);
        }

        .breadcrumb-nav a:hover {
            color: #4DD0E1;
        }

        .breadcrumb-nav .separator {
            color: rgba(255, 255, 255, 0.35);
        }

        .breadcrumb-nav .current {
            color: #E0E4F0;
        }

        .page-header h1 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--color-text-light);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .page-header .cat-desc {
            font-size: 1.05rem;
            color: #C4CAD8;
            max-width: 720px;
            line-height: 1.8;
            margin-bottom: 0;
        }

        /* Main Content */
        .main-content {
            padding: 48px 0 64px;
        }

        .content-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 32px;
            align-items: start;
        }

        /* Numbered List */
        .numbered-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .numbered-item {
            display: flex;
            gap: 20px;
            background: var(--color-surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            margin-bottom: 20px;
            padding: 20px;
            position: relative;
            transition: box-shadow var(--transition-base), border-color var(--transition-base), transform var(--transition-base);
        }

        .numbered-item:hover {
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
            border-color: rgba(0, 229, 255, 0.25);
            transform: translateY(-2px);
        }

        .number-badge {
            flex-shrink: 0;
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--color-accent-soft), rgba(0, 229, 255, 0.2));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            font-weight: 800;
            color: #00B8D4;
            letter-spacing: 0.02em;
            border: 1px solid rgba(0, 229, 255, 0.3);
        }

        .number-badge.alt {
            background: linear-gradient(135deg, var(--color-accent-2-soft), rgba(255, 179, 0, 0.2));
            color: #E69500;
            border-color: rgba(255, 179, 0, 0.3);
        }

        .list-item-content {
            flex: 1;
            min-width: 0;
        }

        .list-item-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.82rem;
            color: var(--color-text-muted);
            margin-bottom: 6px;
            flex-wrap: wrap;
        }

        .list-item-meta .date {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .list-item-meta .badge {
            background: var(--color-accent-soft);
            color: #00A8C5;
            font-size: 0.72rem;
            font-weight: 600;
            padding: 2px 10px;
            border-radius: 20px;
            letter-spacing: 0.02em;
        }

        .numbered-item h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 8px;
            line-height: 1.5;
        }

        .numbered-item h3 a {
            color: var(--color-text);
            transition: color var(--transition-base);
        }

        .numbered-item h3 a:hover {
            color: #00A8C5;
        }

        .numbered-item .item-summary {
            font-size: 0.92rem;
            color: var(--color-text-muted);
            margin-bottom: 12px;
            line-height: 1.7;
        }

        .read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-accent);
            transition: gap var(--transition-base), color var(--transition-base);
        }

        .read-more:hover {
            gap: 10px;
            color: #00B8D4;
        }

        .read-more i {
            font-size: 0.75rem;
        }

        .item-thumb {
            flex-shrink: 0;
            width: 180px;
            height: 120px;
            border-radius: 10px;
            overflow: hidden;
            position: relative;
            align-self: center;
        }

        .item-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }

        .numbered-item:hover .item-thumb img {
            transform: scale(1.05);
        }

        /* Sidebar */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 30px;
        }

        .sidebar-widget {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            padding: 22px 20px;
        }

        .sidebar-widget h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--color-accent-soft);
            letter-spacing: 0.02em;
        }

        .hot-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .hot-list li a {
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--color-text);
            font-size: 0.88rem;
            font-weight: 500;
            transition: color var(--transition-base), transform var(--transition-base);
        }

        .hot-list li a:hover {
            color: #00A8C5;
            transform: translateX(3px);
        }

        .hot-list .hot-thumb {
            width: 48px;
            height: 48px;
            border-radius: 8px;
            overflow: hidden;
            flex-shrink: 0;
        }

        .hot-list .hot-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .hot-list .hot-rank {
            font-size: 0.7rem;
            font-weight: 700;
            color: #00B8D4;
            width: 18px;
            text-align: center;
            flex-shrink: 0;
        }

        .hot-list .hot-rank.alt {
            color: #E69500;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-cloud a {
            display: inline-flex;
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 500;
            background: var(--color-bg);
            color: var(--color-text-muted);
            border: 1px solid var(--color-border);
            transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base);
        }

        .tag-cloud a:hover {
            background: var(--color-accent-soft);
            color: #00A8C5;
            border-color: rgba(0, 229, 255, 0.3);
        }

        .subscribe-card {
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-2) 100%);
            border: 1px solid rgba(0, 229, 255, 0.15);
            border-radius: var(--radius-card);
            padding: 24px 20px;
            position: relative;
            overflow: hidden;
        }

        .subscribe-card::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -40px;
            width: 140px;
            height: 140px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 229, 255, 0.2) 0%, transparent 70%);
        }

        .subscribe-card h4 {
            color: var(--color-text-light);
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .subscribe-card p {
            color: var(--color-text-muted-light);
            font-size: 0.85rem;
            margin-bottom: 14px;
            line-height: 1.6;
        }

        .subscribe-form {
            display: flex;
            gap: 8px;
        }

        .subscribe-form input {
            flex: 1;
            padding: 9px 12px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.08);
            color: var(--color-text-light);
            font-size: 0.85rem;
            transition: border-color var(--transition-base), background var(--transition-base);
        }

        .subscribe-form input::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }

        .subscribe-form input:focus {
            outline: none;
            border-color: var(--color-accent);
            background: rgba(255, 255, 255, 0.12);
        }

        .subscribe-form button {
            padding: 9px 14px;
            border-radius: 8px;
            border: none;
            background: var(--color-accent);
            color: #0A0E27;
            font-weight: 600;
            font-size: 0.85rem;
            cursor: pointer;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
        }

        .subscribe-form button:hover {
            box-shadow: var(--shadow-glow);
            transform: translateY(-1px);
        }

        /* Section Title */
        .section-title-area {
            margin-bottom: 28px;
        }

        .section-title-area h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--color-text);
            margin-bottom: 6px;
        }

        .section-title-area .section-sub {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            margin-bottom: 0;
        }

        /* Bottom CTA */
        .bottom-cta {
            background: linear-gradient(135deg, var(--color-primary) 0%, #1E2550 100%);
            padding: 56px 0;
            position: relative;
            overflow: hidden;
        }

        .bottom-cta::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 600px;
            height: 600px;
            transform: translate(-50%, -50%);
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 229, 255, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .bottom-cta .container {
            position: relative;
            z-index: 1;
            text-align: center;
        }

        .bottom-cta h2 {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--color-text-light);
            margin-bottom: 12px;
        }

        .bottom-cta p {
            color: #C4CAD8;
            margin-bottom: 24px;
            font-size: 1rem;
            max-width: 520px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-buttons {
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-primary-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            background: linear-gradient(135deg, var(--color-accent) 0%, #00B8D4 100%);
            color: #0A0E27;
            font-weight: 600;
            font-size: 0.92rem;
            border: none;
            cursor: pointer;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
        }

        .btn-primary-cta:hover {
            box-shadow: var(--shadow-glow);
            color: #0A0E27;
            transform: translateY(-2px);
        }

        .btn-secondary-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            background: transparent;
            color: var(--color-accent);
            font-weight: 600;
            font-size: 0.92rem;
            border: 1.5px solid rgba(0, 229, 255, 0.4);
            cursor: pointer;
            transition: background var(--transition-base), border-color var(--transition-base), color var(--transition-base);
        }

        .btn-secondary-cta:hover {
            background: rgba(0, 229, 255, 0.1);
            border-color: var(--color-accent);
            color: #4DD0E1;
        }

        /* Footer */
        .site-footer {
            background: var(--color-surface-darker);
            color: var(--color-text-muted-light);
            padding: 56px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 40px;
        }

        .footer-brand-col .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--color-text-light);
            margin-bottom: 12px;
        }

        .footer-brand-col .footer-brand .brand-icon {
            width: 34px;
            height: 34px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--color-accent) 0%, #00B8D4 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0A0E27;
            font-size: 0.95rem;
            flex-shrink: 0;
        }

        .footer-brand-col p {
            font-size: 0.88rem;
            color: var(--color-text-muted-light);
            max-width: 280px;
            line-height: 1.7;
        }

        .footer-col h4 {
            color: var(--color-text-light);
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            color: var(--color-text-muted-light);
            font-size: 0.88rem;
            transition: color var(--transition-base), padding-left var(--transition-base);
        }

        .footer-col ul li a:hover {
            color: var(--color-accent);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.8rem;
            color: #8A90A5;
        }

        .footer-bottom a {
            color: #8A90A5;
            transition: color var(--transition-base);
        }

        .footer-bottom a:hover {
            color: var(--color-accent);
        }

        /* Responsive */
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }

            .subscribe-card {
                grid-column: span 1;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }

            .nav-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }

            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                padding-top: 10px;
                border-top: 1px solid var(--color-border);
            }

            .nav-links.open {
                display: flex;
            }

            .nav-links a {
                padding: 10px 14px;
                font-size: 0.9rem;
                justify-content: flex-start;
            }

            .nav-cta {
                font-size: 0.8rem;
                padding: 7px 12px;
            }

            .page-header h1 {
                font-size: 1.7rem;
            }

            .numbered-item {
                flex-direction: column;
                gap: 14px;
                padding: 16px;
            }

            .number-badge {
                width: 42px;
                height: 42px;
                font-size: 1.2rem;
                border-radius: 10px;
            }

            .item-thumb {
                width: 100%;
                height: 160px;
            }

            .sidebar {
                grid-template-columns: 1fr;
            }

            .bottom-cta h2 {
                font-size: 1.4rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 576px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .site-header {
                padding: 10px 12px;
            }

            .nav-panel {
                padding: 8px 12px;
            }

            .nav-brand {
                font-size: 1.15rem;
                gap: 8px;
            }

            .nav-brand .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
                border-radius: 8px;
            }

            .page-header {
                padding: 32px 0 48px;
            }

            .page-header h1 {
                font-size: 1.4rem;
            }

            .page-header .cat-desc {
                font-size: 0.92rem;
            }

            .main-content {
                padding: 32px 0 48px;
            }

            .numbered-item h3 {
                font-size: 1.02rem;
            }

            .cta-buttons {
                flex-direction: column;
                align-items: stretch;
            }

            .btn-primary-cta,
            .btn-secondary-cta {
                justify-content: center;
                width: 100%;
            }

            .subscribe-form {
                flex-direction: column;
            }
        }

/* roulang page: category6 */
:root {
            --color-primary: #0A0E27;
            --color-primary-2: #12163A;
            --color-accent: #00E5FF;
            --color-accent-soft: rgba(0, 229, 255, 0.12);
            --color-accent-2: #FFB300;
            --color-accent-2-soft: rgba(255, 179, 0, 0.14);
            --color-bg: #F5F6FA;
            --color-surface: #FFFFFF;
            --color-surface-dark: #161B3A;
            --color-surface-darker: #0C1028;
            --color-text: #1A1F36;
            --color-text-light: #F5F6FA;
            --color-text-muted: #6B7280;
            --color-text-muted-light: #B0B8C8;
            --color-border: rgba(26, 31, 54, 0.1);
            --color-border-light: rgba(255, 255, 255, 0.12);
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-nav: 14px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-card-dark: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 20px rgba(0, 229, 255, 0.35);
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            --container-max: 1200px;
            --gutter: 24px;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.85;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            color: var(--color-accent);
            text-decoration: none;
            transition: color var(--transition-base);
        }

        a:hover,
        a:focus {
            color: #00B8D4;
            text-decoration: none;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 3px solid rgba(0, 229, 255, 0.6);
            outline-offset: 2px;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 32px;
            padding-right: 32px;
        }

        /* Navigation */
        .site-header {
            padding: 14px 20px;
            background: transparent;
            position: relative;
            z-index: 100;
            margin-bottom: 0;
        }

        .nav-panel {
            max-width: var(--container-max);
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.97);
            border-radius: var(--radius-nav);
            padding: 10px 18px;
            box-shadow: 0 6px 28px rgba(0, 0, 0, 0.08);
            border: 1px solid rgba(26, 31, 54, 0.06);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            transition: box-shadow var(--transition-base), border-color var(--transition-base);
        }

        .nav-panel:hover {
            box-shadow: 0 8px 36px rgba(0, 0, 0, 0.12);
            border-color: rgba(0, 229, 255, 0.2);
        }

        .nav-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: 0.03em;
            white-space: nowrap;
        }

        .nav-brand .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--color-accent) 0%, #00B8D4 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0A0E27;
            font-size: 1.1rem;
            flex-shrink: 0;
            box-shadow: 0 2px 10px rgba(0, 229, 255, 0.3);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 13px;
            border-radius: 8px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--color-text);
            transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base);
            border: 1px solid transparent;
            white-space: nowrap;
        }

        .nav-links a:hover,
        .nav-links a:focus {
            background: var(--color-accent-soft);
            color: #00A8C5;
            border-color: rgba(0, 229, 255, 0.25);
        }

        .nav-links a.active {
            background: var(--color-accent);
            color: #0A0E27;
            font-weight: 600;
            border-color: var(--color-accent);
            box-shadow: 0 2px 12px rgba(0, 229, 255, 0.3);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            border-radius: var(--radius-btn);
            background: linear-gradient(135deg, var(--color-accent) 0%, #00B8D4 100%);
            color: #0A0E27;
            font-weight: 600;
            font-size: 0.88rem;
            border: none;
            cursor: pointer;
            white-space: nowrap;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
        }

        .nav-cta:hover,
        .nav-cta:focus {
            box-shadow: 0 4px 18px rgba(0, 229, 255, 0.4);
            transform: translateY(-1px);
            color: #0A0E27;
        }

        .nav-toggle {
            display: none;
            background: var(--color-accent-soft);
            border: 1px solid rgba(0, 229, 255, 0.25);
            border-radius: 8px;
            color: var(--color-primary);
            font-size: 1.2rem;
            padding: 6px 12px;
            cursor: pointer;
            transition: background var(--transition-base);
        }

        .nav-toggle:hover {
            background: rgba(0, 229, 255, 0.2);
        }

        /* Breadcrumb */
        .breadcrumb-section {
            padding: 28px 0 12px;
            background: transparent;
        }

        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
            color: var(--color-text-muted);
            margin: 0;
            padding: 0;
            list-style: none;
            flex-wrap: wrap;
        }

        .breadcrumb-custom li {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumb-custom li a {
            color: var(--color-accent);
            font-weight: 500;
        }

        .breadcrumb-custom li a:hover {
            color: #00B8D4;
        }

        .breadcrumb-custom li:not(:last-child)::after {
            content: "/";
            color: var(--color-text-muted);
            margin-left: 4px;
        }

        .breadcrumb-custom li.active {
            color: var(--color-text);
            font-weight: 600;
        }

        /* Page Header */
        .page-header {
            padding: 24px 0 36px;
            background: linear-gradient(180deg, #F5F6FA 0%, #FFFFFF 100%);
            border-bottom: 1px solid var(--color-border);
            margin-bottom: 40px;
        }

        .page-header h1 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--color-primary);
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .page-header .lead {
            font-size: 1.05rem;
            color: var(--color-text-muted);
            max-width: 780px;
            line-height: 1.9;
            margin-bottom: 0;
        }

        /* Main Layout */
        .main-layout {
            padding-bottom: 60px;
        }

        .content-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 32px;
            align-items: start;
        }

        /* Featured Article */
        .featured-article {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            margin-bottom: 28px;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
        }

        .featured-article:hover {
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
            transform: translateY(-2px);
        }

        .featured-article .article-img {
            position: relative;
            height: 340px;
            overflow: hidden;
        }

        .featured-article .article-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .featured-article:hover .article-img img {
            transform: scale(1.03);
        }

        .featured-article .article-img::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 50%;
            background: linear-gradient(180deg, transparent 0%, rgba(10, 14, 39, 0.7) 100%);
            pointer-events: none;
        }

        .featured-article .article-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            z-index: 2;
            background: var(--color-accent-2);
            color: #1A1F36;
            font-size: 0.8rem;
            font-weight: 700;
            padding: 5px 14px;
            border-radius: 6px;
            letter-spacing: 0.05em;
        }

        .featured-article .article-content {
            padding: 24px 28px 28px;
        }

        .featured-article .article-date {
            font-size: 0.82rem;
            color: var(--color-text-muted);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .featured-article h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 12px;
            line-height: 1.45;
        }

        .featured-article p {
            color: var(--color-text-muted);
            font-size: 0.95rem;
            margin-bottom: 18px;
        }

        .btn-read-more {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            border-radius: var(--radius-btn);
            background: var(--color-accent-soft);
            color: #00A8C5;
            font-weight: 600;
            font-size: 0.88rem;
            border: 1px solid rgba(0, 229, 255, 0.3);
            transition: background var(--transition-base), color var(--transition-base), box-shadow var(--transition-base);
        }

        .btn-read-more:hover,
        .btn-read-more:focus {
            background: var(--color-accent);
            color: #0A0E27;
            box-shadow: 0 2px 12px rgba(0, 229, 255, 0.3);
        }

        /* Small Article Grid */
        .small-articles-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .small-article-card {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            transition: box-shadow var(--transition-base), transform var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .small-article-card:hover {
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.1);
            transform: translateY(-3px);
        }

        .small-article-card .card-img {
            height: 160px;
            overflow: hidden;
            position: relative;
        }

        .small-article-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .small-article-card:hover .card-img img {
            transform: scale(1.05);
        }

        .small-article-card .card-body {
            padding: 16px 18px 18px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .small-article-card .card-date {
            font-size: 0.78rem;
            color: var(--color-text-muted);
            margin-bottom: 6px;
        }

        .small-article-card h3 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 8px;
            line-height: 1.5;
        }

        .small-article-card p {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            margin-bottom: 12px;
            flex: 1;
        }

        .small-article-card .btn-read-more {
            padding: 6px 14px;
            font-size: 0.8rem;
            align-self: flex-start;
        }

        /* Sidebar */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 100px;
        }

        .sidebar-widget {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            padding: 22px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
        }

        .sidebar-widget h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--color-accent-soft);
            position: relative;
        }

        .sidebar-widget h3::after {
            content: "";
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 48px;
            height: 2px;
            background: var(--color-accent);
        }

        .hot-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .hot-list li {
            display: flex;
            gap: 10px;
            align-items: center;
        }

        .hot-list li img {
            width: 56px;
            height: 42px;
            object-fit: cover;
            border-radius: 6px;
            flex-shrink: 0;
        }

        .hot-list li a {
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--color-text);
            line-height: 1.4;
            transition: color var(--transition-base);
        }

        .hot-list li a:hover {
            color: #00A8C5;
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-cloud a {
            display: inline-block;
            padding: 5px 12px;
            border-radius: 6px;
            font-size: 0.8rem;
            font-weight: 500;
            background: var(--color-accent-soft);
            color: #00A8C5;
            border: 1px solid rgba(0, 229, 255, 0.2);
            transition: background var(--transition-base), color var(--transition-base);
        }

        .tag-cloud a:hover {
            background: var(--color-accent);
            color: #0A0E27;
        }

        .subscribe-card {
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-2) 100%);
            color: var(--color-text-light);
            border: none;
        }

        .subscribe-card h3 {
            color: var(--color-text-light);
            border-bottom-color: var(--color-border-light);
        }

        .subscribe-card h3::after {
            background: var(--color-accent-2);
        }

        .subscribe-card p {
            font-size: 0.88rem;
            color: var(--color-text-muted-light);
            margin-bottom: 16px;
        }

        .subscribe-card .btn-subscribe {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: var(--radius-btn);
            background: var(--color-accent-2);
            color: #1A1F36;
            font-weight: 700;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
        }

        .subscribe-card .btn-subscribe:hover,
        .subscribe-card .btn-subscribe:focus {
            box-shadow: 0 4px 18px rgba(255, 179, 0, 0.4);
            transform: translateY(-1px);
            color: #1A1F36;
        }

        /* CTA Section */
        .cta-section {
            margin-top: 48px;
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-2) 60%, #1B2050 100%);
            border-radius: var(--radius-card);
            padding: 44px 40px;
            color: var(--color-text-light);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(0, 229, 255, 0.08);
            pointer-events: none;
        }

        .cta-section::after {
            content: "";
            position: absolute;
            bottom: -80px;
            left: -40px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 179, 0, 0.06);
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            color: var(--color-text-muted-light);
            font-size: 0.98rem;
            margin-bottom: 22px;
            max-width: 640px;
            position: relative;
            z-index: 1;
        }

        .cta-section .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: var(--radius-btn);
            background: var(--color-accent);
            color: #0A0E27;
            font-weight: 700;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
            position: relative;
            z-index: 1;
        }

        .cta-section .btn-cta-primary:hover,
        .cta-section .btn-cta-primary:focus {
            box-shadow: 0 4px 20px rgba(0, 229, 255, 0.45);
            transform: translateY(-2px);
            color: #0A0E27;
        }

        .cta-section .btn-cta-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: var(--radius-btn);
            background: transparent;
            color: var(--color-accent);
            font-weight: 600;
            font-size: 0.95rem;
            border: 1px solid rgba(0, 229, 255, 0.4);
            cursor: pointer;
            transition: background var(--transition-base), color var(--transition-base);
            position: relative;
            z-index: 1;
            margin-left: 12px;
        }

        .cta-section .btn-cta-secondary:hover,
        .cta-section .btn-cta-secondary:focus {
            background: rgba(0, 229, 255, 0.12);
            color: var(--color-accent);
        }

        /* Footer */
        .site-footer {
            background: var(--color-surface-darker);
            color: var(--color-text-muted-light);
            padding: 48px 0 28px;
            margin-top: 60px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 36px;
        }

        .footer-brand-col .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--color-text-light);
            margin-bottom: 12px;
        }

        .footer-brand-col .footer-brand .brand-icon {
            width: 36px;
            height: 36px;
            border-radius: 9px;
            background: linear-gradient(135deg, var(--color-accent) 0%, #00B8D4 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0A0E27;
            font-size: 1rem;
        }

        .footer-brand-col p {
            font-size: 0.88rem;
            color: var(--color-text-muted-light);
            line-height: 1.8;
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--color-text-light);
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: var(--color-text-muted-light);
            font-size: 0.88rem;
            transition: color var(--transition-base);
        }

        .footer-col ul li a:hover {
            color: var(--color-accent);
        }

        .footer-bottom {
            border-top: 1px solid var(--color-border-light);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
        }

        .footer-copyright {
            font-size: 0.85rem;
            color: var(--color-text-muted-light);
        }

        .footer-beian {
            font-size: 0.82rem;
            color: var(--color-text-muted-light);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
        }

        .footer-beian a {
            color: var(--color-text-muted-light);
            font-size: 0.82rem;
        }

        .footer-beian a:hover {
            color: var(--color-accent);
        }

        /* Responsive */
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .sidebar {
                position: static;
                flex-direction: row;
                flex-wrap: wrap;
            }

            .sidebar-widget {
                flex: 1 1 calc(50% - 12px);
                min-width: 260px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }

            .small-articles-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }

            .nav-toggle {
                display: block;
            }

            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                padding-top: 10px;
                border-top: 1px solid var(--color-border);
                margin-top: 10px;
            }

            .nav-links.open {
                display: flex;
            }

            .nav-links a {
                justify-content: center;
                padding: 10px 14px;
            }

            .nav-cta {
                display: none;
            }

            .page-header h1 {
                font-size: 1.7rem;
            }

            .featured-article .article-img {
                height: 220px;
            }

            .featured-article .article-content {
                padding: 18px 20px 22px;
            }

            .featured-article h2 {
                font-size: 1.2rem;
            }

            .small-articles-grid {
                grid-template-columns: 1fr;
            }

            .cta-section {
                padding: 32px 24px;
            }

            .cta-section h2 {
                font-size: 1.3rem;
            }

            .cta-section .btn-cta-secondary {
                margin-left: 0;
                margin-top: 10px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 576px) {
            .site-header {
                padding: 10px 12px;
            }

            .nav-panel {
                padding: 8px 14px;
                border-radius: 12px;
            }

            .nav-brand {
                font-size: 1.15rem;
            }

            .nav-brand .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 0.95rem;
            }

            .page-header {
                padding: 18px 0 24px;
            }

            .page-header h1 {
                font-size: 1.5rem;
            }

            .featured-article .article-img {
                height: 180px;
            }

            .featured-article .article-content {
                padding: 16px 16px 20px;
            }

            .featured-article h2 {
                font-size: 1.1rem;
            }

            .small-article-card .card-img {
                height: 140px;
            }

            .small-article-card .card-body {
                padding: 14px 14px 16px;
            }

            .cta-section {
                padding: 26px 18px;
                border-radius: 12px;
            }

            .cta-section h2 {
                font-size: 1.15rem;
            }

            .cta-section .btn-cta-primary,
            .cta-section .btn-cta-secondary {
                width: 100%;
                justify-content: center;
                display: flex;
            }

            .cta-section .btn-cta-secondary {
                margin-left: 0;
                margin-top: 10px;
            }

            .sidebar-widget {
                flex: 1 1 100%;
                min-width: 0;
            }
        }

/* roulang page: category7 */
:root {
            --color-primary: #0A0E27;
            --color-primary-2: #12163A;
            --color-accent: #00E5FF;
            --color-accent-soft: rgba(0, 229, 255, 0.12);
            --color-accent-2: #FFB300;
            --color-accent-2-soft: rgba(255, 179, 0, 0.14);
            --color-bg: #F5F6FA;
            --color-surface: #FFFFFF;
            --color-surface-dark: #161B3A;
            --color-surface-darker: #0C1028;
            --color-text: #1A1F36;
            --color-text-light: #F5F6FA;
            --color-text-muted: #6B7280;
            --color-text-muted-light: #B0B8C8;
            --color-border: rgba(26, 31, 54, 0.1);
            --color-border-light: rgba(255, 255, 255, 0.12);
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-nav: 14px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-card-dark: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 20px rgba(0, 229, 255, 0.35);
            --transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            --container-max: 1200px;
            --gutter: 24px;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.85;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            color: var(--color-accent);
            text-decoration: none;
            transition: color var(--transition-base);
        }
        a:hover,
        a:focus {
            color: #00B8D4;
            text-decoration: none;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: 3px solid rgba(0, 229, 255, 0.6);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 32px;
            padding-right: 32px;
        }
        @media (max-width: 576px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* Navigation */
        .site-header {
            padding: 14px 20px;
            background: transparent;
            position: relative;
            z-index: 100;
            margin-bottom: 0;
        }
        .nav-panel {
            max-width: var(--container-max);
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.97);
            border-radius: var(--radius-nav);
            padding: 10px 18px;
            box-shadow: 0 6px 28px rgba(0, 0, 0, 0.08);
            border: 1px solid rgba(26, 31, 54, 0.06);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            transition: box-shadow var(--transition-base), border-color var(--transition-base);
        }
        .nav-panel:hover {
            box-shadow: 0 8px 36px rgba(0, 0, 0, 0.12);
            border-color: rgba(0, 229, 255, 0.2);
        }
        .nav-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: 0.03em;
            white-space: nowrap;
        }
        .nav-brand .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--color-accent) 0%, #00B8D4 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0A0E27;
            font-size: 1.1rem;
            flex-shrink: 0;
            box-shadow: 0 2px 10px rgba(0, 229, 255, 0.3);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .nav-links a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 13px;
            border-radius: 8px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--color-text);
            transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base);
            border: 1px solid transparent;
            white-space: nowrap;
        }
        .nav-links a:hover,
        .nav-links a:focus {
            background: var(--color-accent-soft);
            color: #00A8C5;
            border-color: rgba(0, 229, 255, 0.25);
        }
        .nav-links a.active {
            background: var(--color-accent);
            color: #0A0E27;
            font-weight: 600;
            border-color: var(--color-accent);
            box-shadow: 0 2px 12px rgba(0, 229, 255, 0.3);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            border-radius: var(--radius-btn);
            background: linear-gradient(135deg, var(--color-accent) 0%, #00B8D4 100%);
            color: #0A0E27;
            font-weight: 600;
            font-size: 0.88rem;
            border: none;
            cursor: pointer;
            white-space: nowrap;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
        }
        .nav-cta:hover,
        .nav-cta:focus {
            box-shadow: 0 4px 18px rgba(0, 229, 255, 0.4);
            transform: translateY(-1px);
            color: #0A0E27;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid var(--color-border);
            border-radius: 8px;
            padding: 8px 12px;
            font-size: 1.2rem;
            color: var(--color-primary);
            cursor: pointer;
            transition: background var(--transition-base);
        }
        .nav-toggle:hover {
            background: var(--color-accent-soft);
        }
        @media (max-width: 992px) {
            .nav-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }
            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                padding-top: 12px;
                border-top: 1px solid var(--color-border);
                margin-top: 8px;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                padding: 10px 14px;
                border-radius: 8px;
            }
            .nav-cta {
                display: none;
            }
            .nav-cta.mobile-visible {
                display: inline-flex;
                width: 100%;
                justify-content: center;
                margin-top: 8px;
            }
        }

        /* Hero */
        .page-hero {
            background: var(--color-primary);
            background-image: radial-gradient(ellipse at 20% 20%, rgba(0, 229, 255, 0.1) 0%, transparent 55%),
                radial-gradient(ellipse at 80% 70%, rgba(255, 179, 0, 0.08) 0%, transparent 50%),
                url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            padding: 70px 0 64px;
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid rgba(0, 229, 255, 0.15);
        }
        .page-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 14, 39, 0.75) 0%, rgba(10, 14, 39, 0.88) 100%);
            pointer-events: none;
        }
        .page-hero .container {
            position: relative;
            z-index: 1;
        }
        .breadcrumb-hero {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--color-text-muted-light);
            margin-bottom: 18px;
        }
        .breadcrumb-hero a {
            color: var(--color-accent);
            font-weight: 500;
        }
        .breadcrumb-hero a:hover {
            color: #00B8D4;
        }
        .breadcrumb-hero .sep {
            opacity: 0.5;
        }
        .page-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
            line-height: 1.25;
        }
        .page-hero .hero-subtitle {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 680px;
            line-height: 1.75;
            margin-bottom: 0;
        }
        .hero-dot-metrics {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            margin-top: 24px;
        }
        .hero-dot-metrics .metric-dot-item {
            display: flex;
            align-items: center;
            gap: 8px;
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.9rem;
            font-weight: 500;
        }
        .hero-dot-metrics .metric-dot-item .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            flex-shrink: 0;
        }
        .hero-dot-metrics .dot-cyan {
            background: var(--color-accent);
            box-shadow: 0 0 10px rgba(0, 229, 255, 0.6);
        }
        .hero-dot-metrics .dot-amber {
            background: var(--color-accent-2);
            box-shadow: 0 0 10px rgba(255, 179, 0, 0.6);
        }
        @media (max-width: 768px) {
            .page-hero {
                padding: 48px 0 40px;
            }
            .page-hero h1 {
                font-size: 1.75rem;
            }
            .page-hero .hero-subtitle {
                font-size: 1rem;
            }
        }

        /* Section base */
        .section {
            padding: 56px 0;
        }
        .section-title {
            font-size: 1.5rem;
            font-weight: 750;
            color: var(--color-primary);
            margin-bottom: 8px;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--color-text-muted);
            margin-bottom: 28px;
        }
        .section-dark {
            background: var(--color-surface-dark);
            color: var(--color-text-light);
        }
        .section-dark .section-title {
            color: #ffffff;
        }
        .section-dark .section-subtitle {
            color: var(--color-text-muted-light);
        }

        /* Cards */
        .card-surface {
            background: var(--color-surface);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            overflow: hidden;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
        }
        .card-surface:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.1);
            border-color: rgba(0, 229, 255, 0.25);
        }
        .card-surface .card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            background: #e9edf5;
        }
        .card-surface .card-body {
            padding: 16px 18px;
        }
        .card-surface .card-title {
            font-size: 1.05rem;
            font-weight: 650;
            color: var(--color-primary);
            margin-bottom: 6px;
            line-height: 1.5;
        }
        .card-surface .card-text {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.7;
            margin-bottom: 10px;
        }
        .card-meta {
            font-size: 0.78rem;
            color: var(--color-text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .card-link {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-accent);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: color var(--transition-base);
        }
        .card-link:hover {
            color: #00B8D4;
        }

        /* Featured large card */
        .featured-card {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 0;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
        }
        .featured-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 32px rgba(0, 0, 0, 0.12);
        }
        .featured-card .featured-img {
            min-height: 260px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .featured-card .featured-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, transparent 0%, rgba(10, 14, 39, 0.55) 100%);
        }
        .featured-card .featured-body {
            padding: 22px 24px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .featured-card .featured-tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: var(--color-accent-soft);
            color: #00A8C5;
            border-radius: 4px;
            padding: 3px 10px;
            font-size: 0.75rem;
            font-weight: 600;
            margin-bottom: 10px;
            width: fit-content;
        }
        .featured-card .featured-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--color-primary);
            line-height: 1.4;
            margin-bottom: 8px;
        }
        .featured-card .featured-text {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.7;
        }

        /* Uneven two-column layout */
        .uneven-grid {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 20px;
        }
        .uneven-grid .narrow-col {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .mini-card {
            display: flex;
            gap: 12px;
            padding: 14px;
            background: var(--color-surface);
            border-radius: 12px;
            border: 1px solid var(--color-border);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
            transition: transform var(--transition-base), border-color var(--transition-base);
        }
        .mini-card:hover {
            transform: translateY(-2px);
            border-color: rgba(0, 229, 255, 0.3);
        }
        .mini-card .mini-img {
            width: 64px;
            height: 64px;
            border-radius: 8px;
            object-fit: cover;
            flex-shrink: 0;
            background: #e9edf5;
        }
        .mini-card .mini-info h4 {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-primary);
            margin-bottom: 4px;
            line-height: 1.45;
        }
        .mini-card .mini-info p {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* Tags */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag-cloud .tag {
            display: inline-flex;
            align-items: center;
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 500;
            background: var(--color-accent-soft);
            color: #00A8C5;
            border: 1px solid rgba(0, 229, 255, 0.2);
            transition: background var(--transition-base), color var(--transition-base);
            cursor: default;
        }
        .tag-cloud .tag:hover {
            background: var(--color-accent);
            color: #0A0E27;
        }

        /* Subscribe card */
        .subscribe-card {
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-2) 100%);
            border-radius: 12px;
            padding: 20px;
            color: #fff;
            text-align: center;
        }
        .subscribe-card h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .subscribe-card p {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 14px;
        }
        .subscribe-card .btn-sub {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 18px;
            border-radius: 8px;
            background: var(--color-accent);
            color: #0A0E27;
            font-weight: 600;
            font-size: 0.85rem;
            border: none;
            cursor: pointer;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
        }
        .subscribe-card .btn-sub:hover {
            box-shadow: 0 4px 18px rgba(0, 229, 255, 0.4);
            transform: translateY(-1px);
        }

        /* Steps / path */
        .steps-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 24px;
        }
        .step-item {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 12px;
            padding: 18px;
            text-align: center;
            transition: transform var(--transition-base), border-color var(--transition-base);
        }
        .step-item:hover {
            transform: translateY(-3px);
            border-color: rgba(0, 229, 255, 0.3);
        }
        .step-item .step-num {
            display: block;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--color-accent);
            color: #0A0E27;
            font-weight: 800;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 10px;
        }
        .step-item h4 {
            font-size: 0.9rem;
            font-weight: 650;
            color: #fff;
            margin-bottom: 4px;
        }
        .step-item p {
            font-size: 0.8rem;
            color: var(--color-text-muted-light);
            margin-bottom: 0;
        }

        /* FAQ */
        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: 10px;
            margin-bottom: 12px;
            overflow: hidden;
            background: var(--color-surface);
            transition: border-color var(--transition-base);
        }
        .faq-item.open {
            border-color: rgba(0, 229, 255, 0.4);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 18px;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--color-primary);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: background var(--transition-base);
        }
        .faq-question:hover {
            background: rgba(0, 229, 255, 0.04);
        }
        .faq-question .icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--color-accent-soft);
            color: #00A8C5;
            font-size: 0.8rem;
            transition: transform var(--transition-base);
        }
        .faq-item.open .faq-question .icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            display: none;
            padding: 0 18px 16px;
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.75;
        }
        .faq-item.open .faq-answer {
            display: block;
            animation: fadeIn 0.3s ease;
        }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(-4px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* CTA */
        .cta-band {
            background: linear-gradient(135deg, var(--color-primary) 0%, #1a1f3d 60%, var(--color-primary-2) 100%);
            border-radius: var(--radius-card);
            padding: 36px 32px;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-card-dark);
            border: 1px solid rgba(0, 229, 255, 0.2);
        }
        .cta-band h3 {
            font-size: 1.4rem;
            font-weight: 750;
            margin-bottom: 6px;
        }
        .cta-band p {
            font-size: 0.92rem;
            color: rgba(255, 255, 255, 0.78);
            margin-bottom: 0;
            max-width: 500px;
        }
        .cta-band .btn-group {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .btn-primary-accent {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            background: var(--color-accent);
            color: #0A0E27;
            font-weight: 700;
            font-size: 0.9rem;
            border: none;
            cursor: pointer;
            transition: box-shadow var(--transition-base), transform var(--transition-base);
        }
        .btn-primary-accent:hover {
            box-shadow: 0 6px 20px rgba(0, 229, 255, 0.4);
            transform: translateY(-1px);
            color: #0A0E27;
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: var(--radius-btn);
            background: transparent;
            color: #fff;
            font-weight: 600;
            font-size: 0.9rem;
            border: 1px solid rgba(255, 255, 255, 0.35);
            cursor: pointer;
            transition: background var(--transition-base), border-color var(--transition-base);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.6);
            color: #fff;
        }

        /* Footer */
        .site-footer {
            background: var(--color-surface-darker);
            color: var(--color-text-muted-light);
            padding: 48px 0 24px;
            margin-top: 0;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 28px;
        }
        .footer-brand-col .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand-col .footer-brand .brand-icon {
            width: 34px;
            height: 34px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--color-accent) 0%, #00B8D4 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0A0E27;
            font-size: 1rem;
        }
        .footer-brand-col p {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            max-width: 260px;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 0.85rem;
            color: var(--color-text-muted-light);
            transition: color var(--transition-base);
        }
        .footer-col ul li a:hover {
            color: var(--color-accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 18px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition-base);
        }
        .footer-bottom a:hover {
            color: var(--color-accent);
        }
        @media (max-width: 992px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 576px) {
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        /* Responsive adjustments */
        @media (max-width: 992px) {
            .uneven-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .featured-card {
                grid-template-columns: 1fr;
            }
            .featured-card .featured-img {
                min-height: 180px;
            }
            .steps-row {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 576px) {
            .section {
                padding: 36px 0;
            }
            .section-title {
                font-size: 1.2rem;
            }
            .steps-row {
                grid-template-columns: 1fr;
                gap: 10px;
            }
            .cta-band {
                padding: 24px 18px;
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-band .btn-group {
                width: 100%;
            }
            .cta-band .btn-group a,
            .cta-band .btn-group button {
                width: 100%;
                justify-content: center;
            }
            .mini-card {
                flex-direction: column;
            }
            .mini-card .mini-img {
                width: 100%;
                height: 100px;
                border-radius: 8px;
            }
        }