/* roulang page: index */
:root {
            --color-primary: #0A1628;
            --color-primary-light: #0F1E33;
            --color-accent: #2EC4B6;
            --color-warm: #FF9F1C;
            --color-bg: #FFFFFF;
            --color-bg-gray: #F7F9FB;
            --color-text-primary: #0A1628;
            --color-text-body: #1F2D3D;
            --color-text-muted: #6B7A90;
            --color-border: #E5EAF0;
            --color-white: #FFFFFF;
            --radius-sm: 8px;
            --radius-md: 10px;
            --radius-lg: 12px;
            --radius-full: 999px;
            --shadow-sm: 0 1px 3px rgba(10, 22, 40, 0.06);
            --shadow-md: 0 4px 14px rgba(10, 22, 40, 0.08);
            --shadow-lg: 0 8px 28px rgba(10, 22, 40, 0.12);
            --shadow-xl: 0 16px 48px rgba(10, 22, 40, 0.16);
            --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
            --font-mono: "SF Mono", "JetBrains Mono", "Fira Code", "Consolas", monospace;
            --transition-fast: 0.2s cubic-bezier(0.2, 0.8, 0.2, 1);
            --transition-base: 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
            --transition-slow: 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            color: var(--color-text-body);
            background: var(--color-bg);
            line-height: 1.8;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

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

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

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition-fast);
        }

        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 4px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        @media (min-width: 768px) {
            .container {
                padding: 0 32px;
            }
        }

        @media (min-width: 1280px) {
            .container {
                max-width: 1280px;
                padding: 0 40px;
            }
        }

        .section {
            padding: 64px 0;
        }

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

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

        .section-title {
            font-size: 1.75rem;
            font-weight: 800;
            color: var(--color-text-primary);
            line-height: 1.2;
            letter-spacing: -0.01em;
            margin-bottom: 12px;
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--color-text-muted);
            max-width: 720px;
            line-height: 1.8;
            margin-bottom: 32px;
        }

        @media (min-width: 768px) {
            .section-title {
                font-size: 2.25rem;
            }
            .section-subtitle {
                font-size: 1.05rem;
            }
        }

        @media (min-width: 1024px) {
            .section-title {
                font-size: 2.75rem;
            }
        }

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

        .card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(46, 196, 182, 0.3);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--color-accent);
            color: var(--color-white);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 12px 28px;
            border-radius: var(--radius-full);
            letter-spacing: 0.02em;
            transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
            box-shadow: 0 2px 8px rgba(46, 196, 182, 0.3);
        }

        .btn-primary:hover {
            background: #25a99b;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(46, 196, 182, 0.4);
            color: var(--color-white);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 1px 3px rgba(46, 196, 182, 0.3);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--color-primary);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 12px 28px;
            border-radius: var(--radius-full);
            border: 1.5px solid var(--color-primary);
            letter-spacing: 0.02em;
            transition: border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
        }

        .btn-secondary:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            transform: translateY(-1px);
        }

        .btn-warm {
            background: var(--color-warm);
            color: var(--color-white);
            box-shadow: 0 2px 8px rgba(255, 159, 28, 0.3);
        }

        .btn-warm:hover {
            background: #e88f15;
            box-shadow: 0 6px 20px rgba(255, 159, 28, 0.45);
            color: var(--color-white);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 14px;
            border-radius: var(--radius-full);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            line-height: 1.4;
        }

        .badge-warm {
            background: rgba(255, 159, 28, 0.12);
            color: #c77a10;
            border: 1px solid rgba(255, 159, 28, 0.2);
        }

        .badge-primary {
            background: rgba(10, 22, 40, 0.08);
            color: var(--color-primary);
            border: 1px solid rgba(10, 22, 40, 0.08);
        }

        .badge-accent {
            background: rgba(46, 196, 182, 0.1);
            color: #1a9d8e;
            border: 1px solid rgba(46, 196, 182, 0.2);
        }

        .nav-link {
            position: relative;
            display: flex;
            align-items: center;
            gap: 6px;
            font-weight: 500;
            font-size: 0.9rem;
            color: var(--color-text-body);
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            transition: color var(--transition-fast), background var(--transition-fast);
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--color-accent);
            border-radius: 2px;
            transition: width var(--transition-base);
        }

        .nav-link:hover {
            color: var(--color-accent);
            background: rgba(46, 196, 182, 0.05);
        }

        .nav-link:hover::after {
            width: 24px;
        }

        .nav-link.active {
            color: var(--color-accent);
        }

        .nav-link.active::after {
            width: 24px;
        }

        .mobile-menu-drawer {
            position: fixed;
            top: 0;
            left: -100%;
            width: 100%;
            max-width: 380px;
            height: 100vh;
            background: var(--color-white);
            z-index: 1000;
            transition: left var(--transition-slow);
            box-shadow: var(--shadow-xl);
            overflow-y: auto;
            padding: 20px 24px;
            display: flex;
            flex-direction: column;
        }

        .mobile-menu-drawer.open {
            left: 0;
        }

        .mobile-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(10, 22, 40, 0.5);
            z-index: 999;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition-base);
        }

        .mobile-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }

        .mobile-drawer-nav-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 16px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-text-primary);
            border-left: 3px solid transparent;
            transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
        }

        .mobile-drawer-nav-item:hover {
            background: rgba(46, 196, 182, 0.06);
            border-left-color: var(--color-accent);
            color: var(--color-accent);
        }

        .mobile-drawer-nav-item.active {
            background: rgba(46, 196, 182, 0.08);
            border-left-color: var(--color-accent);
            color: var(--color-accent);
        }

        .icon-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: var(--radius-full);
            border: 1.5px solid var(--color-border);
            color: var(--color-text-body);
            transition: border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
        }

        .icon-btn:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background: rgba(46, 196, 182, 0.05);
        }

        .faq-item {
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            background: var(--color-white);
            overflow: hidden;
            transition: border-color var(--transition-fast);
        }

        .faq-item:hover {
            border-color: rgba(46, 196, 182, 0.3);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 20px;
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--color-text-primary);
            cursor: pointer;
            user-select: none;
            transition: color var(--transition-fast);
        }

        .faq-question:hover {
            color: var(--color-accent);
        }

        .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(46, 196, 182, 0.08);
            color: var(--color-accent);
            font-weight: 700;
            font-size: 1.1rem;
            transition: transform var(--transition-base);
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow);
        }

        .faq-answer-inner {
            padding: 0 20px 18px;
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
        }

        .stat-number {
            font-family: var(--font-mono);
            font-weight: 700;
            font-size: 2.25rem;
            line-height: 1.2;
            color: var(--color-white);
            letter-spacing: -0.02em;
        }

        @media (min-width: 768px) {
            .stat-number {
                font-size: 3rem;
            }
        }

        .news-list-item {
            display: flex;
            flex-direction: column;
            gap: 10px;
            padding: 18px 0;
            border-bottom: 1px solid var(--color-border);
            transition: background var(--transition-fast), padding-left var(--transition-fast);
            border-radius: var(--radius-sm);
            cursor: default;
        }

        .news-list-item:hover {
            background: rgba(46, 196, 182, 0.04);
            padding-left: 8px;
        }

        .news-date {
            font-family: var(--font-mono);
            font-size: 0.8rem;
            color: var(--color-text-muted);
            letter-spacing: 0.03em;
        }

        .news-title {
            font-weight: 700;
            font-size: 1rem;
            line-height: 1.5;
            color: var(--color-text-primary);
        }

        .news-excerpt {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.7;
        }

        .news-readmore {
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--color-accent);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .news-readmore:hover {
            color: #1a9d8e;
        }

        .kpi-card {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-lg);
            padding: 20px 24px;
            text-align: center;
            transition: background var(--transition-fast), border-color var(--transition-fast);
        }

        .kpi-card:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(46, 196, 182, 0.3);
        }

        .kpi-label {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.6);
            letter-spacing: 0.04em;
            margin-top: 4px;
        }

        .comparison-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 14px 0;
            border-bottom: 1px solid var(--color-border);
        }

        .comparison-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.85rem;
        }

        .comparison-icon.positive {
            background: rgba(46, 196, 182, 0.1);
            color: #1a9d8e;
        }

        .comparison-icon.negative {
            background: rgba(255, 159, 28, 0.1);
            color: #c77a10;
        }

        .milestone-item {
            position: relative;
            padding-left: 28px;
            padding-bottom: 28px;
            border-left: 2px solid rgba(46, 196, 182, 0.3);
            margin-left: 8px;
        }

        .milestone-item::before {
            content: '';
            position: absolute;
            left: -7px;
            top: 4px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--color-accent);
            border: 2px solid var(--color-white);
            box-shadow: 0 0 8px rgba(46, 196, 182, 0.4);
        }

        .milestone-item:last-child {
            padding-bottom: 0;
            border-left-color: transparent;
        }

        .milestone-date {
            font-family: var(--font-mono);
            font-size: 0.8rem;
            color: var(--color-text-muted);
            letter-spacing: 0.03em;
        }

        .milestone-text {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--color-text-primary);
            margin-top: 4px;
        }

        .partner-tag {
            display: inline-flex;
            align-items: center;
            padding: 8px 20px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-full);
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--color-text-muted);
            transition: border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
        }

        .partner-tag:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background: rgba(46, 196, 182, 0.05);
        }

        .step-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            gap: 12px;
            padding: 20px 16px;
            border-radius: var(--radius-lg);
            background: var(--color-white);
            border: 1px solid var(--color-border);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
        }

        .step-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--color-primary);
            color: var(--color-white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.1rem;
        }

        .guarantee-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 18px 20px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .guarantee-icon {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(46, 196, 182, 0.15);
            color: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
        }

        .device-entry {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 10px;
            padding: 20px;
            border-radius: var(--radius-lg);
            background: var(--color-white);
            border: 1px solid var(--color-border);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
        }

        .device-entry:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            border-color: rgba(46, 196, 182, 0.3);
        }

        .device-icon {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(10, 22, 40, 0.05);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
        }

        .subscribe-input {
            flex: 1;
            min-width: 0;
            padding: 12px 20px;
            border: 1.5px solid var(--color-border);
            border-radius: var(--radius-full);
            font-family: var(--font-sans);
            font-size: 0.95rem;
            color: var(--color-text-primary);
            background: var(--color-white);
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
            outline: none;
        }

        .subscribe-input:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 4px rgba(46, 196, 182, 0.12);
        }

        .hero-icon-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 12px;
        }

        @media (min-width: 640px) {
            .hero-icon-grid {
                grid-template-columns: repeat(6, 1fr);
                gap: 16px;
            }
        }

        @media (min-width: 1024px) {
            .hero-icon-grid {
                gap: 20px;
            }
        }

        .hero-icon-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            padding: 14px 8px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
            cursor: default;
        }

        .hero-icon-item:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(46, 196, 182, 0.3);
            transform: translateY(-2px);
        }

        .hero-icon-item span {
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.7);
            font-weight: 500;
            letter-spacing: 0.02em;
        }

        .deep-content {
            font-size: 0.95rem;
            line-height: 1.9;
            color: var(--color-text-body);
        }

        .deep-content p {
            margin-bottom: 16px;
        }

        .deep-content h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-text-primary);
            margin: 20px 0 10px;
        }

        .deep-content ul {
            margin: 12px 0;
            padding-left: 20px;
            list-style: disc;
            color: var(--color-text-body);
        }

        .deep-content li {
            margin-bottom: 6px;
        }

        @media (min-width: 768px) {
            .deep-content {
                font-size: 1rem;
                line-height: 1.95;
            }
        }

        .section-divider {
            border: none;
            height: 1px;
            background: var(--color-border);
            margin: 0;
        }

/* roulang page: category3 */
:root {
            --color-primary: #0A1628;
            --color-primary-light: #0F1E33;
            --color-accent: #2EC4B6;
            --color-warm: #FF9F1C;
            --color-bg: #FFFFFF;
            --color-bg-gray: #F7F9FB;
            --color-text-primary: #0A1628;
            --color-text-body: #1F2D3D;
            --color-text-muted: #6B7A90;
            --color-border: #E5EAF0;
            --color-white: #FFFFFF;
            --radius-sm: 8px;
            --radius-md: 10px;
            --radius-lg: 12px;
            --radius-full: 999px;
            --shadow-sm: 0 1px 3px rgba(10, 22, 40, 0.06);
            --shadow-md: 0 4px 14px rgba(10, 22, 40, 0.08);
            --shadow-lg: 0 8px 28px rgba(10, 22, 40, 0.12);
            --shadow-xl: 0 16px 48px rgba(10, 22, 40, 0.16);
            --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
            --font-mono: "SF Mono", "JetBrains Mono", "Fira Code", "Consolas", monospace;
            --transition-fast: 0.2s cubic-bezier(0.2, 0.8, 0.2, 1);
            --transition-base: 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
            --transition-slow: 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            color: var(--color-text-body);
            background: var(--color-bg);
            line-height: 1.8;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition-fast);
        }
        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 4px;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 40px;
        }
        .section {
            padding: 56px 0;
        }
        .section-alt {
            background: var(--color-bg-gray);
        }
        .card {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
        }
        .card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(46, 196, 182, 0.3);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--color-accent);
            color: var(--color-white);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 12px 28px;
            border-radius: var(--radius-full);
            letter-spacing: 0.02em;
            transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
            box-shadow: 0 2px 8px rgba(46, 196, 182, 0.3);
        }
        .btn-primary:hover {
            background: #25a99b;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(46, 196, 182, 0.4);
            color: var(--color-white);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 1px 3px rgba(46, 196, 182, 0.3);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--color-primary);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 12px 28px;
            border-radius: var(--radius-full);
            border: 1.5px solid var(--color-primary);
            letter-spacing: 0.02em;
            transition: border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
        }
        .btn-secondary:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            transform: translateY(-1px);
        }
        .btn-warm {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--color-warm);
            color: var(--color-primary);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 12px 28px;
            border-radius: var(--radius-full);
            letter-spacing: 0.02em;
            transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
            box-shadow: 0 2px 8px rgba(255, 159, 28, 0.3);
        }
        .btn-warm:hover {
            background: #f08c0e;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(255, 159, 28, 0.4);
            color: var(--color-primary);
        }
        .badge-warm {
            display: inline-flex;
            align-items: center;
            background: rgba(255, 159, 28, 0.12);
            color: #c77008;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: var(--radius-full);
            letter-spacing: 0.03em;
        }
        .badge-primary {
            display: inline-flex;
            align-items: center;
            background: rgba(10, 22, 40, 0.08);
            color: var(--color-primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: var(--radius-full);
        }
        .badge-accent {
            display: inline-flex;
            align-items: center;
            background: rgba(46, 196, 182, 0.12);
            color: #1a8a7d;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: var(--radius-full);
        }
        .nav-link {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--color-text-muted);
            padding: 6px 12px 8px;
            border-bottom: 2px solid transparent;
            transition: color var(--transition-fast), border-color var(--transition-fast);
        }
        .nav-link:hover {
            color: var(--color-accent);
            border-bottom-color: var(--color-accent);
        }
        .nav-link.active {
            color: var(--color-accent);
            border-bottom-color: var(--color-accent);
        }
        .nav-link svg {
            transition: transform var(--transition-fast);
        }
        .nav-link:hover svg {
            transform: translateY(-1px);
        }
        .rank-item {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 16px 20px;
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            transition: background var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
        }
        .rank-item:hover {
            background: var(--color-bg-gray);
            border-color: rgba(46, 196, 182, 0.25);
            box-shadow: var(--shadow-sm);
        }
        .rank-pos {
            font-family: var(--font-mono);
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--color-primary);
            min-width: 48px;
            text-align: center;
            line-height: 1;
        }
        .rank-change-up {
            color: #22c55e;
            font-weight: 700;
            font-size: 0.8rem;
            display: inline-flex;
            align-items: center;
            gap: 2px;
        }
        .rank-change-down {
            color: #ef4444;
            font-weight: 700;
            font-size: 0.8rem;
            display: inline-flex;
            align-items: center;
            gap: 2px;
        }
        .tag-cloud {
            display: inline-flex;
            align-items: center;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-full);
            padding: 6px 14px;
            font-size: 0.82rem;
            color: var(--color-text-body);
            background: var(--color-white);
            transition: border-color var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
        }
        .tag-cloud:hover {
            border-color: var(--color-accent);
            background: rgba(46, 196, 182, 0.06);
            color: var(--color-accent);
        }
        .stat-number {
            font-family: var(--font-mono);
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1.2;
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            margin-top: 4px;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            color: var(--color-text-muted);
            margin-bottom: 16px;
        }
        .breadcrumb a {
            color: var(--color-text-muted);
        }
        .breadcrumb a:hover {
            color: var(--color-accent);
        }
        .breadcrumb-sep {
            color: var(--color-border);
            user-select: none;
        }
        .rank-table-header {
            display: grid;
            grid-template-columns: 48px 1fr 80px 80px 80px 70px;
            gap: 8px;
            padding: 10px 20px;
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--color-text-muted);
            border-bottom: 1px solid var(--color-border);
            background: var(--color-bg-gray);
            border-radius: var(--radius-md) var(--radius-md) 0 0;
        }
        .rank-table-row {
            display: grid;
            grid-template-columns: 48px 1fr 80px 80px 80px 70px;
            gap: 8px;
            padding: 12px 20px;
            font-size: 0.85rem;
            border-bottom: 1px solid rgba(229, 234, 240, 0.6);
            align-items: center;
            transition: background var(--transition-fast);
        }
        .rank-table-row:hover {
            background: rgba(46, 196, 182, 0.04);
        }
        .editor-pick-card {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
        }
        .editor-pick-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }
        .editor-pick-img {
            aspect-ratio: 16/9;
            background: var(--color-bg-gray);
            overflow: hidden;
            position: relative;
        }
        .editor-pick-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .editor-pick-body {
            padding: 16px 20px 20px;
        }
        .mobile-menu {
            display: none;
            background: var(--color-white);
            border-top: 1px solid var(--color-border);
            box-shadow: var(--shadow-lg);
            padding: 8px 20px 20px;
        }
        .mobile-menu.open {
            display: block;
        }
        .mobile-nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 8px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-text-body);
            border-left: 3px solid transparent;
            transition: color var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
        }
        .mobile-nav-link:hover {
            color: var(--color-accent);
            border-left-color: var(--color-accent);
            background: var(--color-bg-gray);
        }
        .mobile-nav-link.active {
            color: var(--color-accent);
            border-left-color: var(--color-accent);
        }
        .hamburger-btn {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            background: transparent;
        }
        .hamburger-btn span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--color-primary);
            transition: transform var(--transition-fast), opacity var(--transition-fast);
        }
        .input-subscribe {
            background: var(--color-white);
            border: 1.5px solid var(--color-border);
            border-radius: var(--radius-md);
            padding: 10px 16px;
            font-size: 0.9rem;
            color: var(--color-text-body);
            font-family: inherit;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
            outline: none;
            min-width: 0;
            flex: 1;
        }
        .input-subscribe:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(46, 196, 182, 0.18);
        }
        @media (max-width: 1024px) {
            .container {
                padding: 0 24px;
            }
            .rank-table-header,
            .rank-table-row {
                grid-template-columns: 40px 1fr 60px 60px 60px 60px;
                gap: 4px;
                padding: 10px 12px;
                font-size: 0.75rem;
            }
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }
            .section {
                padding: 40px 0;
            }
            .hamburger-btn {
                display: flex;
            }
            .nav-link {
                font-size: 0.7rem;
                padding: 6px 8px 6px;
            }
            .rank-table-header,
            .rank-table-row {
                grid-template-columns: 32px 1fr 50px 50px 50px 50px;
                gap: 2px;
                padding: 8px;
                font-size: 0.68rem;
            }
            .rank-pos {
                font-size: 1.2rem;
                min-width: 32px;
            }
            .stat-number {
                font-size: 1.7rem;
            }
        }
        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
            .section {
                padding: 32px 0;
            }
            .rank-item {
                padding: 12px 14px;
                gap: 10px;
            }
            .rank-table-header,
            .rank-table-row {
                grid-template-columns: 28px 1fr 42px 42px 42px 42px;
                gap: 1px;
                padding: 6px 4px;
                font-size: 0.62rem;
            }
            .rank-pos {
                font-size: 1rem;
                min-width: 28px;
            }
            .editor-pick-body {
                padding: 12px 14px 16px;
            }
            .mobile-menu.open {
                display: block;
            }
        }

/* roulang page: category1 */
:root {
            --color-primary: #0A1628;
            --color-primary-light: #0F1E33;
            --color-accent: #2EC4B6;
            --color-warm: #FF9F1C;
            --color-bg: #FFFFFF;
            --color-bg-gray: #F7F9FB;
            --color-text-primary: #0A1628;
            --color-text-body: #1F2D3D;
            --color-text-muted: #6B7A90;
            --color-border: #E5EAF0;
            --color-white: #FFFFFF;
            --radius-sm: 8px;
            --radius-md: 10px;
            --radius-lg: 12px;
            --radius-full: 999px;
            --shadow-sm: 0 1px 3px rgba(10, 22, 40, 0.06);
            --shadow-md: 0 4px 14px rgba(10, 22, 40, 0.08);
            --shadow-lg: 0 8px 28px rgba(10, 22, 40, 0.12);
            --shadow-xl: 0 16px 48px rgba(10, 22, 40, 0.16);
            --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
            --font-mono: "SF Mono", "JetBrains Mono", "Fira Code", "Consolas", monospace;
            --transition-fast: 0.2s cubic-bezier(0.2, 0.8, 0.2, 1);
            --transition-base: 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
            --transition-slow: 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            color: var(--color-text-body);
            background: var(--color-bg);
            line-height: 1.8;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition-fast);
        }
        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 4px;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 40px;
        }
        .section {
            padding: 56px 0;
        }
        .section-alt {
            background: var(--color-bg-gray);
        }
        .section-dark {
            background: var(--color-primary);
            color: var(--color-white);
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-text-primary);
            line-height: 1.2;
            letter-spacing: -0.01em;
            margin-bottom: 12px;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--color-text-muted);
            max-width: 720px;
            line-height: 1.85;
            margin-bottom: 32px;
        }
        .card {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
        }
        .card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(46, 196, 182, 0.3);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--color-accent);
            color: var(--color-white);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 12px 28px;
            border-radius: var(--radius-full);
            letter-spacing: 0.02em;
            transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
            box-shadow: 0 2px 8px rgba(46, 196, 182, 0.3);
        }
        .btn-primary:hover {
            background: #25a99b;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(46, 196, 182, 0.4);
            color: var(--color-white);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 1px 3px rgba(46, 196, 182, 0.3);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--color-primary);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 12px 28px;
            border-radius: var(--radius-full);
            border: 1.5px solid var(--color-primary);
            letter-spacing: 0.02em;
            transition: border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
        }
        .btn-secondary:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            transform: translateY(-1px);
        }
        .btn-warm {
            background: var(--color-warm);
            color: var(--color-primary);
            font-weight: 700;
            padding: 12px 28px;
            border-radius: var(--radius-full);
            transition: background var(--transition-fast), transform var(--transition-fast);
        }
        .btn-warm:hover {
            background: #e88c0c;
            transform: translateY(-1px);
        }
        .badge-accent {
            background: rgba(46, 196, 182, 0.12);
            color: #1a8c80;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-full);
        }
        .badge-warm {
            background: rgba(255, 159, 28, 0.15);
            color: #c3740a;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-full);
        }
        .badge-primary {
            background: rgba(10, 22, 40, 0.08);
            color: var(--color-primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-full);
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--color-text-body);
            border-radius: var(--radius-sm);
            position: relative;
            transition: color var(--transition-fast);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--color-accent);
            border-radius: 2px;
            transition: width var(--transition-fast);
        }
        .nav-link:hover {
            color: var(--color-accent);
        }
        .nav-link:hover::after,
        .nav-link.active::after {
            width: 60%;
        }
        .nav-link.active {
            color: var(--color-accent);
        }
        .match-list-item {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 22px 24px;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
            display: flex;
            align-items: center;
            gap: 20px;
            margin-bottom: 14px;
        }
        .match-list-item:hover {
            border-color: rgba(46, 196, 182, 0.3);
            box-shadow: var(--shadow-md);
            background: #fafdfd;
        }
        .match-list-left {
            flex-shrink: 0;
            width: 7rem;
            text-align: center;
        }
        .match-list-date {
            font-family: var(--font-mono);
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--color-text-muted);
        }
        .match-list-time {
            font-family: var(--font-mono);
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-primary);
        }
        .match-list-body {
            flex: 1;
        }
        .match-list-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-text-primary);
            margin-bottom: 4px;
        }
        .match-list-summary {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.6;
        }
        .match-list-tag {
            flex-shrink: 0;
        }
        .topic-tag {
            display: inline-block;
            padding: 6px 14px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-full);
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--color-text-body);
            transition: all var(--transition-fast);
        }
        .topic-tag:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }
        .stat-item {
            text-align: center;
            padding: 20px 12px;
        }
        .stat-number {
            font-family: var(--font-mono);
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1.1;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            margin-top: 6px;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
            color: var(--color-text-muted);
            padding: 18px 0 0;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--color-text-muted);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--color-accent);
        }
        .breadcrumb-sep {
            color: var(--color-border);
        }
        .breadcrumb-current {
            color: var(--color-text-primary);
            font-weight: 600;
        }
        @media (max-width: 1024px) {
            .container {
                padding: 0 24px;
            }
            .section {
                padding: 44px 0;
            }
            .section-title {
                font-size: 1.75rem;
            }
            .match-list-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
            .match-list-left {
                width: 100%;
                text-align: left;
                display: flex;
                gap: 16px;
                align-items: baseline;
            }
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
            .section {
                padding: 36px 0;
            }
            .section-title {
                font-size: 1.45rem;
            }
            .stat-number {
                font-size: 1.9rem;
            }
            .match-list-item {
                padding: 16px 18px;
            }
            .match-list-title {
                font-size: 1rem;
            }
            .match-list-summary {
                font-size: 0.85rem;
            }
        }
        @media (max-width: 520px) {
            .section {
                padding: 28px 0;
            }
            .section-title {
                font-size: 1.25rem;
            }
            .match-list-item {
                padding: 14px 14px;
                gap: 8px;
            }
            .match-list-left {
                flex-direction: column;
                gap: 2px;
            }
            .stat-number {
                font-size: 1.5rem;
            }
        }

/* roulang page: category2 */
/* roulang page: sports-news */
        :root {
            --color-primary: #0A1628;
            --color-primary-light: #0F1E33;
            --color-accent: #2EC4B6;
            --color-warm: #FF9F1C;
            --color-bg: #FFFFFF;
            --color-bg-gray: #F7F9FB;
            --color-text-primary: #0A1628;
            --color-text-body: #1F2D3D;
            --color-text-muted: #6B7A90;
            --color-border: #E5EAF0;
            --color-white: #FFFFFF;
            --radius-sm: 8px;
            --radius-md: 10px;
            --radius-lg: 12px;
            --radius-full: 999px;
            --shadow-sm: 0 1px 3px rgba(10, 22, 40, 0.06);
            --shadow-md: 0 4px 14px rgba(10, 22, 40, 0.08);
            --shadow-lg: 0 8px 28px rgba(10, 22, 40, 0.12);
            --shadow-xl: 0 16px 48px rgba(10, 22, 40, 0.16);
            --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
            --font-mono: "SF Mono", "JetBrains Mono", "Fira Code", "Consolas", monospace;
            --transition-fast: 0.2s cubic-bezier(0.2, 0.8, 0.2, 1);
            --transition-base: 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
            --transition-slow: 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            color: var(--color-text-body);
            background: var(--color-bg);
            line-height: 1.8;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

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

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

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition-fast);
        }

        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 4px;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 40px;
        }

        .section {
            padding: 64px 0;
        }

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

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

        .section-title {
            font-size: 2.25rem;
            font-weight: 800;
            color: var(--color-text-primary);
            line-height: 1.2;
            letter-spacing: -0.01em;
            margin-bottom: 12px;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--color-text-muted);
            max-width: 720px;
            line-height: 1.8;
            margin-bottom: 32px;
        }

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

        .card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(46, 196, 182, 0.3);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--color-accent);
            color: var(--color-white);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 12px 28px;
            border-radius: var(--radius-full);
            letter-spacing: 0.02em;
            transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
            box-shadow: 0 2px 8px rgba(46, 196, 182, 0.3);
        }

        .btn-primary:hover {
            background: #25a99b;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(46, 196, 182, 0.4);
            color: var(--color-white);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 1px 3px rgba(46, 196, 182, 0.3);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--color-primary);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 12px 28px;
            border-radius: var(--radius-full);
            border: 1.5px solid var(--color-primary);
            letter-spacing: 0.02em;
            transition: border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
        }

        .btn-secondary:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            transform: translateY(-1px);
        }

        .btn-warm {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--color-warm);
            color: var(--color-primary);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 12px 28px;
            border-radius: var(--radius-full);
            letter-spacing: 0.02em;
            transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
            box-shadow: 0 2px 8px rgba(255, 159, 28, 0.3);
        }

        .btn-warm:hover {
            background: #e88a0e;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(255, 159, 28, 0.4);
            color: var(--color-primary);
        }

        .badge-warm {
            display: inline-flex;
            align-items: center;
            background: rgba(255, 159, 28, 0.12);
            color: #D97A0A;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            letter-spacing: 0.01em;
            border: 1px solid rgba(255, 159, 28, 0.25);
        }

        .badge-tag {
            display: inline-flex;
            align-items: center;
            background: rgba(10, 22, 40, 0.06);
            color: var(--color-primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            letter-spacing: 0.01em;
            transition: background var(--transition-fast), color var(--transition-fast);
            border: 1px solid transparent;
        }

        .badge-tag:hover {
            background: rgba(10, 22, 40, 0.1);
            color: var(--color-primary);
        }

        .badge-accent {
            display: inline-flex;
            align-items: center;
            background: rgba(46, 196, 182, 0.12);
            color: #1f9d8f;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            letter-spacing: 0.01em;
            border: 1px solid rgba(46, 196, 182, 0.25);
        }

        /* Header & Navigation */
        .site-header {
            border-bottom: 1px solid var(--color-border);
            background: var(--color-white);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 1px 4px rgba(10, 22, 40, 0.04);
        }

        .header-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px 0 12px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            flex-shrink: 0;
        }

        .brand-name {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -0.01em;
            line-height: 1.2;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .header-search-btn,
        .header-login-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-text-body);
            padding: 8px 16px;
            border-radius: var(--radius-full);
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
            background: var(--color-white);
        }

        .header-search-btn:hover,
        .header-login-btn:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }

        .header-subscribe-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            font-weight: 700;
            color: var(--color-white);
            background: var(--color-accent);
            padding: 8px 16px;
            border-radius: var(--radius-full);
            transition: all var(--transition-fast);
        }

        .header-subscribe-btn:hover {
            background: #25a99b;
            color: var(--color-white);
            transform: translateY(-1px);
        }

        /* Icon Grid Navigation */
        .nav-icon-grid {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 8px;
            padding: 8px 0 14px;
        }

        .nav-link {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--color-text-body);
            padding: 6px 18px;
            border-radius: var(--radius-sm);
            position: relative;
            transition: color var(--transition-fast), background var(--transition-fast);
            text-align: center;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--color-accent);
            border-radius: 2px;
            transition: width var(--transition-base);
        }

        .nav-link:hover {
            color: var(--color-accent);
        }

        .nav-link:hover::after {
            width: 100%;
        }

        .nav-link.active {
            color: var(--color-accent);
            background: rgba(46, 196, 182, 0.06);
        }

        .nav-link.active::after {
            width: 100%;
        }

        .nav-link svg {
            flex-shrink: 0;
        }

        /* Mobile Drawer */
        .mobile-menu-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--color-border);
            background: var(--color-white);
            transition: border-color var(--transition-fast);
        }

        .mobile-menu-toggle:hover {
            border-color: var(--color-accent);
        }

        .mobile-menu-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
            transition: all var(--transition-base);
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 200;
            background: rgba(10, 22, 40, 0.6);
            opacity: 0;
            visibility: hidden;
            transition: opacity var(--transition-base), visibility var(--transition-base);
        }

        .mobile-drawer.open {
            opacity: 1;
            visibility: visible;
        }

        .mobile-drawer-panel {
            position: absolute;
            top: 0;
            right: 0;
            bottom: 0;
            width: 85%;
            max-width: 360px;
            background: var(--color-white);
            padding: 24px 20px;
            box-shadow: var(--shadow-xl);
            transform: translateX(100%);
            transition: transform var(--transition-base);
            overflow-y: auto;
        }

        .mobile-drawer.open .mobile-drawer-panel {
            transform: translateX(0);
        }

        .mobile-drawer-close {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--color-bg-gray);
            color: var(--color-text-body);
            margin-left: auto;
            margin-bottom: 16px;
            transition: background var(--transition-fast);
        }

        .mobile-drawer-close:hover {
            background: var(--color-border);
            color: var(--color-primary);
        }

        .mobile-nav-links {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .mobile-nav-link {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-text-body);
            padding: 12px 14px;
            border-radius: var(--radius-sm);
            border-left: 3px solid transparent;
            transition: all var(--transition-fast);
        }

        .mobile-nav-link:hover,
        .mobile-nav-link.active {
            background: rgba(46, 196, 182, 0.06);
            color: var(--color-accent);
            border-left-color: var(--color-accent);
        }

        /* Breadcrumb */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--color-text-muted);
            padding: 20px 0 12px;
            flex-wrap: wrap;
        }

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

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

        .breadcrumb .separator {
            color: var(--color-border);
            user-select: none;
        }

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

        /* Category Header */
        .category-header {
            padding: 32px 0 40px;
            border-bottom: 1px solid var(--color-border);
            background: linear-gradient(180deg, #F7F9FB 0%, #FFFFFF 100%);
        }

        .category-header h1 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-text-primary);
            line-height: 1.2;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }

        .category-header .lead {
            font-size: 1rem;
            color: var(--color-text-muted);
            max-width: 760px;
            line-height: 1.8;
        }

        /* News List Items */
        .news-list-item {
            display: flex;
            gap: 20px;
            padding: 24px 0;
            border-bottom: 1px solid var(--color-border);
            transition: background var(--transition-fast), padding-left var(--transition-fast);
            border-radius: var(--radius-sm);
            align-items: flex-start;
        }

        .news-list-item:hover {
            padding-left: 12px;
            background: rgba(247, 249, 251, 0.6);
        }

        .news-list-item .news-date {
            flex-shrink: 0;
            width: 68px;
            font-family: var(--font-mono);
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--color-text-muted);
            text-align: center;
            padding-top: 4px;
            letter-spacing: 0.02em;
        }

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

        .news-list-item .news-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--color-text-primary);
            line-height: 1.4;
            margin-bottom: 6px;
            transition: color var(--transition-fast);
        }

        .news-list-item:hover .news-title {
            color: var(--color-accent);
        }

        .news-list-item .news-summary {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.7;
            margin-bottom: 8px;
        }

        .news-list-item .news-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .news-list-item .read-more-btn {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--color-accent);
            transition: gap var(--transition-fast), color var(--transition-fast);
        }

        .news-list-item .read-more-btn:hover {
            gap: 8px;
            color: #25a99b;
        }

        .news-thumb {
            flex-shrink: 0;
            width: 140px;
            height: 88px;
            border-radius: var(--radius-sm);
            background: var(--color-bg-gray);
            border: 1px solid var(--color-border);
            overflow: hidden;
        }

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

        /* Editorial Picks */
        .editorial-card {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
        }

        .editorial-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(46, 196, 182, 0.3);
        }

        .editorial-card .editorial-img {
            height: 180px;
            background: var(--color-bg-gray);
            border-bottom: 1px solid var(--color-border);
            overflow: hidden;
        }

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

        .editorial-card:hover .editorial-img img {
            transform: scale(1.03);
        }

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

        .editorial-card .editorial-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-text-primary);
            line-height: 1.4;
            margin-bottom: 8px;
        }

        .editorial-card .editorial-excerpt {
            font-size: 0.88rem;
            color: var(--color-text-muted);
            line-height: 1.7;
            margin-bottom: 10px;
        }

        .editorial-card .editorial-footer {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        /* Topic Tags */
        .topic-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .topic-tag {
            display: inline-flex;
            align-items: center;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--color-text-body);
            padding: 6px 16px;
            border-radius: var(--radius-full);
            border: 1px solid var(--color-border);
            background: var(--color-white);
            transition: all var(--transition-fast);
            letter-spacing: 0.01em;
        }

        .topic-tag:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background: rgba(46, 196, 182, 0.05);
        }

        /* Stats Block */
        .stats-blocks {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-block {
            text-align: center;
            padding: 20px;
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
        }

        .stat-block .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-primary);
            font-family: var(--font-mono);
            line-height: 1.2;
            letter-spacing: -0.02em;
        }

        .stat-block .stat-label {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            font-weight: 600;
            margin-top: 4px;
        }

        /* Subscribe CTA */
        .subscribe-cta {
            background: var(--color-primary);
            border-radius: var(--radius-lg);
            padding: 40px 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-lg);
        }

        .subscribe-cta .cta-text {
            flex: 1;
            min-width: 280px;
        }

        .subscribe-cta .cta-text h2 {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--color-white);
            line-height: 1.3;
            margin-bottom: 6px;
        }

        .subscribe-cta .cta-text p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
        }

        .subscribe-form {
            display: flex;
            gap: 10px;
            align-items: center;
            flex-shrink: 0;
        }

        .subscribe-form input {
            width: 240px;
            padding: 12px 20px;
            border-radius: var(--radius-full);
            border: 1.5px solid rgba(255, 255, 255, 0.2);
            background: rgba(255, 255, 255, 0.06);
            color: var(--color-white);
            font-size: 0.85rem;
            font-weight: 500;
            outline: none;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        .subscribe-form input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }

        .subscribe-form input:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(46, 196, 182, 0.2);
        }

        /* Related Categories */
        .related-cat-card {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 20px 24px;
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            transition: all var(--transition-base);
            box-shadow: var(--shadow-sm);
        }

        .related-cat-card:hover {
            border-color: rgba(46, 196, 182, 0.3);
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        .related-cat-card .rc-icon {
            width: 44px;
            height: 44px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            background: rgba(10, 22, 40, 0.06);
            color: var(--color-primary);
        }

        .related-cat-card .rc-info {
            flex: 1;
        }

        .related-cat-card .rc-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--color-text-primary);
            margin-bottom: 2px;
        }

        .related-cat-card .rc-desc {
            font-size: 0.8rem;
            color: var(--color-text-muted);
            line-height: 1.5;
        }

        /* Footer */
        .site-footer {
            background: var(--color-primary);
            color: rgba(255, 255, 255, 0.6);
            padding: 48px 0 24px;
        }

        .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;
            margin-bottom: 12px;
        }

        .footer-brand-name {
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--color-white);
        }

        .footer-desc {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
            line-height: 1.7;
            max-width: 360px;
        }

        .footer-col h3 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--color-white);
            margin-bottom: 12px;
            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: 0.82rem;
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 16px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.35);
        }

        .footer-bottom-links {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .footer-bottom-links a {
            color: rgba(255, 255, 255, 0.45);
            transition: color var(--transition-fast);
        }

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

        /* Responsive */
        @media (max-width: 1280px) {
            .container {
                padding: 0 32px;
            }
        }

        @media (max-width: 1024px) {
            .container {
                padding: 0 24px;
            }

            .nav-icon-grid {
                gap: 4px;
            }

            .nav-link {
                padding: 6px 10px;
                font-size: 0.75rem;
            }

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

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

        @media (max-width: 768px) {
            .container {
                padding: 0 18px;
            }

            .section {
                padding: 40px 0;
            }

            .section-title {
                font-size: 1.6rem;
            }

            .section-subtitle {
                font-size: 0.95rem;
            }

            .nav-icon-grid {
                display: none;
            }

            .mobile-menu-toggle {
                display: flex;
            }

            .header-brand {
                padding: 12px 0;
            }

            .header-actions {
                gap: 8px;
            }

            .header-search-btn,
            .header-login-btn {
                padding: 6px 12px;
                font-size: 0.78rem;
            }

            .header-subscribe-btn {
                display: none;
            }

            .breadcrumb {
                font-size: 0.78rem;
                padding: 14px 0 8px;
            }

            .category-header {
                padding: 20px 0 28px;
            }

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

            .category-header .lead {
                font-size: 0.9rem;
            }

            .news-list-item {
                flex-direction: column;
                gap: 12px;
                padding: 18px 0;
            }

            .news-list-item .news-date {
                width: auto;
                text-align: left;
                font-size: 0.75rem;
            }

            .news-thumb {
                width: 100%;
                height: 160px;
                border-radius: var(--radius-sm);
            }

            .news-list-item .news-title {
                font-size: 1rem;
            }

            .stats-blocks {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .stat-block {
                padding: 14px;
            }

            .stat-block .stat-number {
                font-size: 1.5rem;
            }

            .subscribe-cta {
                padding: 28px 24px;
                flex-direction: column;
                align-items: flex-start;
            }

            .subscribe-form {
                flex-direction: column;
                width: 100%;
            }

            .subscribe-form input {
                width: 100%;
            }

            .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: 0 14px;
            }

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

            .header-actions .header-search-btn span,
            .header-actions .header-login-btn span {
                display: none;
            }

            .header-search-btn,
            .header-login-btn {
                padding: 6px 10px;
            }

            .stats-blocks {
                grid-template-columns: 1fr;
            }

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

            .news-list-item .news-summary {
                font-size: 0.85rem;
            }

            .topic-tag {
                font-size: 0.72rem;
                padding: 5px 12px;
            }
        }

/* roulang page: category4 */
:root {
            --color-primary: #0A1628;
            --color-primary-light: #0F1E33;
            --color-accent: #2EC4B6;
            --color-warm: #FF9F1C;
            --color-bg: #FFFFFF;
            --color-bg-gray: #F7F9FB;
            --color-text-primary: #0A1628;
            --color-text-body: #1F2D3D;
            --color-text-muted: #6B7A90;
            --color-border: #E5EAF0;
            --color-white: #FFFFFF;
            --radius-sm: 8px;
            --radius-md: 10px;
            --radius-lg: 12px;
            --radius-full: 999px;
            --shadow-sm: 0 1px 3px rgba(10, 22, 40, 0.06);
            --shadow-md: 0 4px 14px rgba(10, 22, 40, 0.08);
            --shadow-lg: 0 8px 28px rgba(10, 22, 40, 0.12);
            --shadow-xl: 0 16px 48px rgba(10, 22, 40, 0.16);
            --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
            --font-mono: "SF Mono", "JetBrains Mono", "Fira Code", "Consolas", monospace;
            --transition-fast: 0.2s cubic-bezier(0.2, 0.8, 0.2, 1);
            --transition-base: 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
            --transition-slow: 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            color: var(--color-text-body);
            background: var(--color-bg);
            line-height: 1.8;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition-fast);
        }
        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 4px;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 40px;
        }
        .section {
            padding: 64px 0;
        }
        .section-alt {
            background: var(--color-bg-gray);
        }
        .section-dark {
            background: var(--color-primary);
            color: var(--color-white);
        }
        .section-title {
            font-size: 2.75rem;
            font-weight: 800;
            color: var(--color-text-primary);
            line-height: 1.2;
            letter-spacing: -0.01em;
            margin-bottom: 12px;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--color-text-muted);
            max-width: 720px;
            line-height: 1.8;
            margin-bottom: 32px;
        }
        .card {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
        }
        .card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(46, 196, 182, 0.3);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--color-accent);
            color: var(--color-white);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 12px 28px;
            border-radius: var(--radius-full);
            letter-spacing: 0.02em;
            transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
            box-shadow: 0 2px 8px rgba(46, 196, 182, 0.3);
        }
        .btn-primary:hover {
            background: #25a99b;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(46, 196, 182, 0.4);
            color: var(--color-white);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 1px 3px rgba(46, 196, 182, 0.3);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--color-primary);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 12px 28px;
            border-radius: var(--radius-full);
            border: 1.5px solid var(--color-primary);
            letter-spacing: 0.02em;
            transition: border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
        }
        .btn-secondary:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            transform: translateY(-1px);
        }
        .btn-warm {
            background: var(--color-warm);
            color: var(--color-primary);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 12px 28px;
            border-radius: var(--radius-full);
            letter-spacing: 0.02em;
            transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
            box-shadow: 0 2px 8px rgba(255, 159, 28, 0.3);
        }
        .btn-warm:hover {
            background: #e88e0f;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(255, 159, 28, 0.4);
            color: var(--color-white);
        }
        .badge-hot {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: rgba(255, 159, 28, 0.12);
            color: #b35c00;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            letter-spacing: 0.02em;
        }
        .badge-tag {
            display: inline-flex;
            align-items: center;
            background: rgba(10, 22, 40, 0.06);
            color: var(--color-primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            letter-spacing: 0.02em;
            transition: background var(--transition-fast), color var(--transition-fast);
        }
        .badge-tag:hover {
            background: rgba(46, 196, 182, 0.12);
            color: #1a7d72;
        }
        .list-item {
            display: flex;
            flex-direction: column;
            padding: 20px 0;
            border-bottom: 1px solid var(--color-border);
            transition: background var(--transition-fast), padding-left var(--transition-fast);
            border-radius: 4px;
        }
        .list-item:hover {
            background: var(--color-bg-gray);
            padding-left: 12px;
        }
        .list-item-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-text-primary);
            line-height: 1.5;
            margin-bottom: 6px;
        }
        .list-item-date {
            font-family: var(--font-mono);
            font-size: 0.8rem;
            color: var(--color-text-muted);
            letter-spacing: 0.05em;
            margin-bottom: 8px;
        }
        .list-item-summary {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.7;
        }
        .nav-link {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
            padding: 8px 14px;
            color: var(--color-primary);
            font-size: 0.8rem;
            font-weight: 600;
            position: relative;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }
        .nav-link svg {
            width: 20px;
            height: 20px;
            transition: color var(--transition-fast);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--color-accent);
            border-radius: 2px;
            transition: width var(--transition-base);
        }
        .nav-link:hover,
        .nav-link.active {
            color: var(--color-accent);
        }
        .nav-link:hover::after,
        .nav-link.active::after {
            width: 60%;
        }
        .nav-link:hover svg,
        .nav-link.active svg {
            color: var(--color-accent);
        }
        .mobile-nav-link {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 14px 16px;
            color: var(--color-primary);
            font-size: 1rem;
            font-weight: 600;
            border-left: 3px solid transparent;
            transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
            border-bottom: 1px solid var(--color-border);
        }
        .mobile-nav-link:hover,
        .mobile-nav-link.active {
            background: rgba(46, 196, 182, 0.06);
            border-left-color: var(--color-accent);
            color: var(--color-accent);
        }
        .mobile-nav-link svg {
            width: 22px;
            height: 22px;
            flex-shrink: 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--color-text-muted);
            margin-bottom: 16px;
        }
        .breadcrumb a {
            color: var(--color-text-muted);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--color-accent);
        }
        .breadcrumb-separator {
            color: var(--color-border);
            user-select: none;
        }
        .stat-box {
            text-align: center;
            padding: 24px 16px;
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition-base), box-shadow var(--transition-base);
        }
        .stat-box:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--color-primary);
            line-height: 1.2;
            letter-spacing: -0.02em;
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            margin-top: 4px;
        }
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .tag-pill {
            display: inline-block;
            padding: 6px 16px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-full);
            font-size: 0.85rem;
            color: var(--color-text-body);
            background: var(--color-white);
            transition: all var(--transition-fast);
            cursor: pointer;
        }
        .tag-pill:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background: rgba(46, 196, 182, 0.05);
        }
        .editor-card {
            display: flex;
            flex-direction: column;
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
        }
        .editor-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(46, 196, 182, 0.3);
        }
        .editor-card-image {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: #E5EAF0;
        }
        .editor-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .editor-card-image .card-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 24px 16px 12px;
            background: linear-gradient(to top, rgba(10, 22, 40, 0.7), transparent);
        }
        .editor-card-body {
            padding: 20px;
        }
        .editor-card-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-text-primary);
            line-height: 1.5;
            margin-bottom: 8px;
        }
        .editor-card-desc {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            line-height: 1.7;
        }
        .cta-strip {
            background: var(--color-primary);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            gap: 20px;
            box-shadow: var(--shadow-xl);
        }
        .cta-strip h3 {
            color: var(--color-white);
            font-size: 1.5rem;
            font-weight: 700;
            margin: 0;
        }
        .cta-strip p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.95rem;
            max-width: 560px;
            margin: 0;
        }
        .cta-email-form {
            display: flex;
            gap: 12px;
            width: 100%;
            max-width: 440px;
        }
        .cta-email-form input {
            flex: 1;
            padding: 12px 20px;
            border-radius: var(--radius-full);
            border: 1.5px solid rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.08);
            color: var(--color-white);
            font-size: 0.9rem;
            outline: none;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
            min-width: 0;
        }
        .cta-email-form input::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }
        .cta-email-form input:focus {
            border-color: var(--color-accent);
            box-shadow: 0 0 0 3px rgba(46, 196, 182, 0.25);
        }
        @media (max-width: 1024px) {
            .container {
                padding: 0 24px;
            }
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 2rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
            }
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
            .section {
                padding: 36px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .section-subtitle {
                font-size: 0.9rem;
            }
            .list-item {
                padding: 14px 0;
            }
            .list-item-title {
                font-size: 1rem;
            }
            .list-item-summary {
                font-size: 0.85rem;
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .cta-email-form {
                flex-direction: column;
                gap: 10px;
            }
            .cta-email-form input {
                width: 100%;
                border-radius: var(--radius-full);
            }
            .cta-email-form .btn-primary {
                width: 100%;
                border-radius: var(--radius-full);
            }
        }
        @media (max-width: 640px) {
            .section-title {
                font-size: 1.4rem;
            }
            .container {
                padding: 0 14px;
            }
            .editor-card-image {
                aspect-ratio: 4/3;
            }
            .cta-strip {
                padding: 24px 18px;
            }
            .cta-strip h3 {
                font-size: 1.2rem;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 12px;
            }
            .stat-box {
                padding: 16px 8px;
            }
            .stat-number {
                font-size: 1.5rem;
            }
        }
        .image-placeholder {
            background: #E5EAF0;
            border: 1px solid var(--color-border);
            position: relative;
            overflow: hidden;
        }
        .image-placeholder::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 60%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
            animation: shimmer 2.5s infinite;
        }
        @keyframes shimmer {
            0% {
                left: -100%;
            }
            100% {
                left: 200%;
            }
        }
        #mobile-menu {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
        }
        #mobile-menu.open {
            max-height: 600px;
        }

/* roulang page: category5 */
:root {
            --color-primary: #0A1628;
            --color-primary-light: #0F1E33;
            --color-accent: #2EC4B6;
            --color-warm: #FF9F1C;
            --color-bg: #FFFFFF;
            --color-bg-gray: #F7F9FB;
            --color-text-primary: #0A1628;
            --color-text-body: #1F2D3D;
            --color-text-muted: #6B7A90;
            --color-border: #E5EAF0;
            --color-white: #FFFFFF;
            --radius-sm: 8px;
            --radius-md: 10px;
            --radius-lg: 12px;
            --radius-full: 999px;
            --shadow-sm: 0 1px 3px rgba(10, 22, 40, 0.06);
            --shadow-md: 0 4px 14px rgba(10, 22, 40, 0.08);
            --shadow-lg: 0 8px 28px rgba(10, 22, 40, 0.12);
            --shadow-xl: 0 16px 48px rgba(10, 22, 40, 0.16);
            --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
            --font-mono: "SF Mono", "JetBrains Mono", "Fira Code", "Consolas", monospace;
            --transition-fast: 0.2s cubic-bezier(0.2, 0.8, 0.2, 1);
            --transition-base: 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
            --transition-slow: 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            color: var(--color-text-body);
            background: var(--color-bg);
            line-height: 1.8;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-accent);
        }

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

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition-fast);
        }
        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 4px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        @media (min-width: 640px) {
            .container {
                padding: 0 32px;
            }
        }

        @media (min-width: 1024px) {
            .container {
                max-width: 1280px;
                padding: 0 40px;
            }
        }

        .section {
            padding: 64px 0;
        }
        .section-alt {
            background: var(--color-bg-gray);
        }
        .section-dark {
            background: var(--color-primary);
            color: var(--color-white);
        }

        .section-title {
            font-size: 1.75rem;
            font-weight: 800;
            color: var(--color-text-primary);
            line-height: 1.2;
            letter-spacing: -0.01em;
            margin-bottom: 12px;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--color-text-muted);
            max-width: 720px;
            line-height: 1.8;
            margin-bottom: 32px;
        }

        @media (min-width: 640px) {
            .section-title {
                font-size: 2.25rem;
            }
            .section-subtitle {
                font-size: 1.05rem;
            }
        }

        @media (min-width: 1024px) {
            .section-title {
                font-size: 2.5rem;
            }
        }

        .card {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
        }
        .card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(46, 196, 182, 0.3);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--color-accent);
            color: var(--color-white);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 12px 28px;
            border-radius: var(--radius-full);
            letter-spacing: 0.02em;
            transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
            box-shadow: 0 2px 8px rgba(46, 196, 182, 0.3);
        }
        .btn-primary:hover {
            background: #25a99b;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(46, 196, 182, 0.4);
            color: var(--color-white);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 1px 3px rgba(46, 196, 182, 0.3);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--color-primary);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 12px 28px;
            border-radius: var(--radius-full);
            border: 1.5px solid var(--color-primary);
            letter-spacing: 0.02em;
            transition: border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
        }
        .btn-secondary:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            transform: translateY(-1px);
        }

        .btn-warm {
            background: var(--color-warm);
            color: var(--color-white);
            box-shadow: 0 2px 8px rgba(255, 159, 28, 0.3);
        }
        .btn-warm:hover {
            background: #e88c0e;
            box-shadow: 0 6px 20px rgba(255, 159, 28, 0.4);
            color: var(--color-white);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .badge-category {
            background: rgba(10, 22, 40, 0.07);
            color: var(--color-text-primary);
        }
        .badge-hot {
            background: rgba(255, 159, 28, 0.12);
            color: #b45309;
        }

        .nav-link {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 10px 14px;
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--color-text-body);
            border-bottom: 2px solid transparent;
            position: relative;
            transition: color var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
            letter-spacing: 0.01em;
            white-space: nowrap;
            border-radius: 6px 6px 0 0;
        }
        .nav-link:hover {
            color: var(--color-accent);
            background: rgba(46, 196, 182, 0.05);
        }
        .nav-link.active {
            color: var(--color-accent);
            border-bottom-color: var(--color-accent);
        }
        .nav-link svg {
            flex-shrink: 0;
        }

        .mobile-nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 16px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--color-text-body);
            border-left: 3px solid transparent;
            transition: color var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
            border-radius: 0;
        }
        .mobile-nav-link:hover {
            color: var(--color-accent);
            background: rgba(46, 196, 182, 0.05);
        }
        .mobile-nav-link.active {
            color: var(--color-accent);
            border-left-color: var(--color-accent);
            background: rgba(46, 196, 182, 0.06);
        }

        .vid-card {
            display: flex;
            flex-direction: column;
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
        }
        .vid-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(46, 196, 182, 0.35);
        }
        .vid-card .thumb {
            position: relative;
            aspect-ratio: 16/9;
            background: var(--color-bg-gray);
            overflow: hidden;
            border-bottom: 1px solid var(--color-border);
        }
        .vid-card .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .vid-card .thumb .play-overlay {
            position: absolute;
            inset: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(10, 22, 40, 0.15);
            opacity: 0;
            transition: opacity var(--transition-fast);
        }
        .vid-card:hover .thumb .play-overlay {
            opacity: 1;
        }

        .topic-tag {
            display: inline-flex;
            align-items: center;
            padding: 6px 16px;
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--color-text-body);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-full);
            transition: border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
            white-space: nowrap;
        }
        .topic-tag:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background: rgba(46, 196, 182, 0.05);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.82rem;
            color: var(--color-text-muted);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--color-text-muted);
            transition: color var(--transition-fast);
        }
        .breadcrumb a:hover {
            color: var(--color-accent);
        }
        .breadcrumb .sep {
            user-select: none;
            opacity: 0.5;
        }
        .breadcrumb .current {
            color: var(--color-text-primary);
            font-weight: 600;
        }

        .stat-item {
            text-align: center;
            padding: 20px 16px;
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
        }
        .stat-item .stat-num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-primary);
            font-family: var(--font-mono);
            letter-spacing: -0.02em;
            line-height: 1.2;
        }
        .stat-item .stat-label {
            font-size: 0.82rem;
            color: var(--color-text-muted);
            margin-top: 4px;
        }

        .footer-link {
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition-fast);
            font-size: 0.85rem;
        }
        .footer-link:hover {
            color: var(--color-accent);
        }

        #mobile-menu {
            transition: max-height var(--transition-slow), opacity var(--transition-slow);
            max-height: 0;
            opacity: 0;
            overflow: hidden;
        }
        #mobile-menu.open {
            max-height: 600px;
            opacity: 1;
        }

        .prose-cn {
            font-size: 1rem;
            line-height: 1.9;
            color: var(--color-text-body);
        }
        .prose-cn p {
            margin-bottom: 1.2em;
        }

        @media (max-width: 768px) {
            .section {
                padding: 40px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .vid-card {
                flex-direction: column;
            }
            .stat-item .stat-num {
                font-size: 1.5rem;
            }
        }

/* roulang page: category6 */
:root {
            --color-primary: #0A1628;
            --color-primary-light: #0F1E33;
            --color-accent: #2EC4B6;
            --color-warm: #FF9F1C;
            --color-bg: #FFFFFF;
            --color-bg-gray: #F7F9FB;
            --color-text-primary: #0A1628;
            --color-text-body: #1F2D3D;
            --color-text-muted: #6B7A90;
            --color-border: #E5EAF0;
            --color-white: #FFFFFF;
            --radius-sm: 8px;
            --radius-md: 10px;
            --radius-lg: 12px;
            --radius-full: 999px;
            --shadow-sm: 0 1px 3px rgba(10, 22, 40, 0.06);
            --shadow-md: 0 4px 14px rgba(10, 22, 40, 0.08);
            --shadow-lg: 0 8px 28px rgba(10, 22, 40, 0.12);
            --shadow-xl: 0 16px 48px rgba(10, 22, 40, 0.16);
            --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
            --font-mono: "SF Mono", "JetBrains Mono", "Fira Code", "Consolas", monospace;
            --transition-fast: 0.2s cubic-bezier(0.2, 0.8, 0.2, 1);
            --transition-base: 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
            --transition-slow: 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            color: var(--color-text-body);
            background: var(--color-bg);
            line-height: 1.8;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

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

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

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            transition: all var(--transition-fast);
        }

        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
            border-radius: 4px;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 40px;
        }

        .section {
            padding: 64px 0;
        }

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

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

        .section-title {
            font-size: 1.75rem;
            font-weight: 800;
            color: var(--color-text-primary);
            line-height: 1.2;
            letter-spacing: -0.01em;
            margin-bottom: 12px;
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--color-text-muted);
            max-width: 720px;
            line-height: 1.8;
            margin-bottom: 32px;
        }

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

        .card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(46, 196, 182, 0.3);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--color-accent);
            color: var(--color-white);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 12px 28px;
            border-radius: var(--radius-full);
            letter-spacing: 0.02em;
            transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
            box-shadow: 0 2px 8px rgba(46, 196, 182, 0.3);
        }

        .btn-primary:hover {
            background: #25a99b;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(46, 196, 182, 0.4);
            color: var(--color-white);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 1px 3px rgba(46, 196, 182, 0.3);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--color-primary);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 12px 28px;
            border-radius: var(--radius-full);
            border: 1.5px solid var(--color-primary);
            letter-spacing: 0.02em;
            transition: border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
        }

        .btn-secondary:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            transform: translateY(-1px);
        }

        .btn-warm {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--color-warm);
            color: var(--color-white);
            font-weight: 700;
            font-size: 0.95rem;
            padding: 12px 28px;
            border-radius: var(--radius-full);
            letter-spacing: 0.02em;
            transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
            box-shadow: 0 2px 8px rgba(255, 159, 28, 0.3);
        }

        .btn-warm:hover {
            background: #e68a0d;
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(255, 159, 28, 0.4);
            color: var(--color-white);
        }

        .badge-warm {
            background: rgba(255, 159, 28, 0.12);
            color: #d97706;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: var(--radius-full);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .badge-tag {
            background: rgba(10, 22, 40, 0.06);
            color: var(--color-primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: var(--radius-full);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            border: 1px solid rgba(10, 22, 40, 0.04);
        }

        .image-placeholder {
            background: #EDF2F7;
            border: 1px solid var(--color-border);
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }

        .image-placeholder img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .nav-link {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 4px 10px 6px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--color-text-body);
            position: relative;
            transition: color var(--transition-fast);
            border-bottom: 2px solid transparent;
        }

        .nav-link:hover {
            color: var(--color-accent);
        }

        .nav-link:hover::after {
            content: "";
            position: absolute;
            left: 10px;
            right: 10px;
            bottom: -1px;
            height: 2px;
            background: var(--color-accent);
            border-radius: 1px;
        }

        .nav-link.active {
            color: var(--color-accent);
            border-bottom-color: var(--color-accent);
        }

        .mobile-nav-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            font-size: 1rem;
            font-weight: 700;
            color: var(--color-text-body);
            border-left: 3px solid transparent;
            transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
        }

        .mobile-nav-link:hover {
            background: rgba(46, 196, 182, 0.06);
            color: var(--color-accent);
        }

        .mobile-nav-link.active {
            color: var(--color-accent);
            border-left-color: var(--color-accent);
            background: rgba(46, 196, 182, 0.04);
        }

        .community-item {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            margin-bottom: 20px;
        }

        .community-item:hover {
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
            border-color: rgba(46, 196, 182, 0.3);
        }

        .community-item-inner {
            display: flex;
            flex-direction: column;
            gap: 16px;
            padding: 20px;
        }

        .community-item-media {
            width: 100%;
            aspect-ratio: 16/9;
            border-radius: var(--radius-sm);
            overflow: hidden;
            border: 1px solid var(--color-border);
        }

        .community-item-body {
            flex: 1;
            min-width: 0;
        }

        .community-item-title {
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--color-text-primary);
            line-height: 1.35;
            margin-bottom: 8px;
        }

        .community-item-excerpt {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.7;
            margin-bottom: 12px;
        }

        .community-item-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 0.75rem;
            color: var(--color-text-muted);
            font-family: var(--font-mono);
        }

        .divider {
            border: none;
            border-top: 1px solid var(--color-border);
            margin: 0;
        }

        .tag-cloud-item {
            display: inline-flex;
            padding: 6px 14px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-full);
            font-size: 0.8rem;
            color: var(--color-text-body);
            background: var(--color-white);
            transition: border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
            margin: 4px;
        }

        .tag-cloud-item:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background: rgba(46, 196, 182, 0.04);
        }

        .editor-pick-card {
            background: var(--color-white);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
        }

        .editor-pick-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(46, 196, 182, 0.3);
        }

        .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--color-primary);
            font-family: var(--font-mono);
            line-height: 1;
        }

        .stat-label {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            margin-top: 4px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            color: var(--color-text-muted);
            padding: 18px 0 0;
        }

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

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

        .breadcrumb-sep {
            color: var(--color-border);
            user-select: none;
        }

        footer {
            background: var(--color-primary);
            color: rgba(255, 255, 255, 0.6);
        }

        footer a {
            color: rgba(255, 255, 255, 0.6);
            transition: color var(--transition-fast);
        }

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

        #mobileMenu {
            display: none;
        }

        #mobileMenu.open {
            display: block;
        }

        @media (min-width: 768px) {
            .section-title {
                font-size: 2.25rem;
            }

            .section-subtitle {
                font-size: 1.05rem;
            }

            .community-item-inner {
                flex-direction: row;
                align-items: center;
            }

            .community-item-media {
                width: 260px;
                flex-shrink: 0;
                aspect-ratio: 16/9;
            }
        }

        @media (min-width: 1024px) {
            .container {
                padding: 0 48px;
            }

            .section {
                padding: 80px 0;
            }

            .section-title {
                font-size: 2.75rem;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }

            .section {
                padding: 48px 0;
            }

            .section-title {
                font-size: 1.5rem;
            }

            .community-item-inner {
                padding: 16px;
            }

            .community-item-title {
                font-size: 1.05rem;
            }

            .stat-number {
                font-size: 2rem;
            }

            .editor-pick-card {
                margin-bottom: 16px;
            }

            .tag-cloud-item {
                padding: 4px 10px;
                font-size: 0.75rem;
            }
        }

        @media (max-width: 640px) {
            .community-item-meta {
                font-size: 0.7rem;
            }

            .badge-warm,
            .badge-tag {
                font-size: 0.7rem;
                padding: 3px 8px;
            }
        }