/* roulang page: index */
:root {
            --primary: #E8351E;
            --primary-dark: #C41E0A;
            --primary-light: #FFF0ED;
            --accent: #FF8C00;
            --accent-gold: #F5A623;
            --success: #10B981;
            --bg: #F7F8FA;
            --bg-white: #FFFFFF;
            --bg-dark: #1A1A2E;
            --text: #1A1A2E;
            --text-secondary: #4A4A62;
            --text-weak: #8E8EA0;
            --text-white: #FFFFFF;
            --border: #E8E8EF;
            --border-light: #F0F0F5;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 12px rgba(0,0,0,0.08), 0 2px 4px rgba(0,0,0,0.04);
            --shadow-lg: 0 12px 32px rgba(0,0,0,0.10), 0 4px 8px rgba(0,0,0,0.05);
            --shadow-xl: 0 20px 48px rgba(0,0,0,0.12), 0 8px 16px rgba(0,0,0,0.06);
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 999px;
            --font-xs: 0.75rem;
            --font-sm: 0.875rem;
            --font-base: 1rem;
            --font-md: 1.125rem;
            --font-lg: 1.25rem;
            --font-xl: 1.5rem;
            --font-2xl: 2rem;
            --font-3xl: 2.5rem;
            --font-4xl: 3rem;
            --font-5xl: 3.75rem;
            --transition: 0.2s ease;
            --transition-slow: 0.35s ease;
            --max-width: 1200px;
            --nav-height: 72px;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            font-size: var(--font-base);
            line-height: 1.6;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        button, input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }

        button {
            cursor: pointer;
        }

        ul, ol {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            height: var(--nav-height);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            height: 100%;
            gap: 16px;
        }

        .nav-logo {
            flex-shrink: 0;
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: var(--font-xl);
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.5px;
            white-space: nowrap;
        }

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: var(--font-lg);
            font-weight: 800;
            flex-shrink: 0;
        }

        .nav-search-wrap {
            flex: 1;
            max-width: 420px;
            position: relative;
            margin: 0 8px;
        }

        .nav-search-wrap .search-icon {
            position: absolute;
            left: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-weak);
            pointer-events: none;
            z-index: 2;
            font-size: var(--font-md);
        }

        .nav-search-input {
            width: 100%;
            height: 44px;
            padding: 0 48px 0 44px;
            border: 2px solid var(--border);
            border-radius: var(--radius-full);
            background: var(--bg);
            font-size: var(--font-sm);
            color: var(--text);
            transition: all var(--transition);
        }

        .nav-search-input:focus {
            border-color: var(--primary);
            background: var(--bg-white);
            box-shadow: 0 0 0 4px rgba(232,53,30,0.08);
            outline: none;
        }

        .nav-search-input::placeholder {
            color: var(--text-weak);
        }

        .nav-search-btn {
            position: absolute;
            right: 6px;
            top: 50%;
            transform: translateY(-50%);
            height: 34px;
            padding: 0 18px;
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-full);
            font-size: var(--font-sm);
            font-weight: 600;
            transition: all var(--transition);
            white-space: nowrap;
            z-index: 2;
        }

        .nav-search-btn:hover {
            background: var(--primary-dark);
            box-shadow: var(--shadow-md);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-shrink: 0;
        }

        .nav-links a {
            padding: 8px 16px;
            border-radius: var(--radius-full);
            font-size: var(--font-sm);
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .nav-links a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }

        .nav-cta-btn {
            flex-shrink: 0;
            padding: 10px 22px;
            background: var(--primary);
            color: #fff !important;
            border-radius: var(--radius-full);
            font-size: var(--font-sm);
            font-weight: 600;
            transition: all var(--transition);
            white-space: nowrap;
            box-shadow: var(--shadow-sm);
        }

        .nav-cta-btn:hover {
            background: var(--primary-dark);
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

        .nav-toggle {
            display: none;
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            background: var(--bg);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            font-size: var(--font-lg);
            color: var(--text);
            cursor: pointer;
        }

        /* Mobile Nav */
        @media (max-width: 1024px) {
            .nav-search-wrap {
                max-width: 280px;
            }
            .nav-links a {
                padding: 6px 12px;
                font-size: var(--font-xs);
            }
            .nav-cta-btn {
                padding: 8px 16px;
                font-size: var(--font-xs);
            }
        }

        @media (max-width: 768px) {
            .site-header {
                height: auto;
                min-height: 60px;
                padding: 8px 0;
            }
            .site-header .container {
                flex-wrap: wrap;
                gap: 8px;
                padding: 0 16px;
            }
            .nav-logo {
                font-size: var(--font-md);
            }
            .nav-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: var(--font-base);
            }
            .nav-toggle {
                display: flex;
                margin-left: auto;
            }
            .nav-search-wrap {
                order: 3;
                max-width: 100%;
                width: 100%;
                margin: 4px 0 0;
            }
            .nav-links {
                display: none;
                order: 4;
                width: 100%;
                flex-direction: column;
                gap: 2px;
                padding: 8px 0;
                border-top: 1px solid var(--border);
                margin-top: 4px;
            }
            .nav-links.show {
                display: flex;
            }
            .nav-links a {
                width: 100%;
                text-align: center;
                padding: 10px;
                border-radius: var(--radius);
            }
            .nav-cta-btn {
                display: none;
            }
            .nav-cta-btn.mobile-show {
                display: block;
                order: 5;
                width: 100%;
                text-align: center;
                margin-top: 4px;
            }
        }

        /* ========== HERO ========== */
        .hero {
            position: relative;
            min-height: 560px;
            display: flex;
            align-items: center;
            background: linear-gradient(170deg, #1a1a2e 0%, #16213e 40%, #0f3460 100%);
            overflow: hidden;
            padding: 60px 0 80px;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.35;
            z-index: 1;
            mix-blend-mode: overlay;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(232,53,30,0.15) 0%, transparent 60%),
                        radial-gradient(ellipse at 70% 30%, rgba(245,166,35,0.10) 0%, transparent 55%);
            z-index: 2;
        }

        .hero .container {
            position: relative;
            z-index: 3;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .hero-content {
            color: #fff;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255,255,255,0.12);
            border: 1px solid rgba(255,255,255,0.2);
            padding: 6px 14px;
            border-radius: var(--radius-full);
            font-size: var(--font-xs);
            font-weight: 500;
            margin-bottom: 20px;
            letter-spacing: 0.3px;
            backdrop-filter: blur(8px);
        }

        .hero-badge .dot {
            width: 8px;
            height: 8px;
            background: #10B981;
            border-radius: 50%;
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.5); }
        }

        .hero-title {
            font-size: var(--font-5xl);
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -1.5px;
            margin-bottom: 16px;
        }

        .hero-title .highlight {
            background: linear-gradient(135deg, #FF8C00, #FFB800);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-desc {
            font-size: var(--font-md);
            color: rgba(255,255,255,0.8);
            line-height: 1.7;
            margin-bottom: 28px;
            max-width: 480px;
        }

        .hero-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 24px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: var(--font-base);
            transition: all var(--transition);
            border: 2px solid transparent;
            white-space: nowrap;
            cursor: pointer;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        .btn-outline {
            background: transparent;
            color: #fff;
            border-color: rgba(255,255,255,0.5);
        }

        .btn-outline:hover {
            background: rgba(255,255,255,0.1);
            border-color: #fff;
            transform: translateY(-2px);
        }

        .btn-lg {
            padding: 14px 32px;
            font-size: var(--font-md);
        }

        .hero-countdown {
            display: flex;
            gap: 8px;
            align-items: center;
            font-size: var(--font-sm);
            color: rgba(255,255,255,0.7);
        }

        .countdown-item {
            background: rgba(255,255,255,0.1);
            padding: 6px 12px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: var(--font-lg);
            color: #FFB800;
            min-width: 44px;
            text-align: center;
            backdrop-filter: blur(4px);
        }

        .hero-visual {
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }

        .hero-visual-card {
            background: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,255,255,0.15);
            border-radius: var(--radius-xl);
            padding: 28px 24px;
            backdrop-filter: blur(16px);
            width: 100%;
            max-width: 380px;
            box-shadow: var(--shadow-xl);
        }

        .hero-visual-card .stat-row {
            display: flex;
            justify-content: space-between;
            padding: 10px 0;
            border-bottom: 1px solid rgba(255,255,255,0.08);
            color: rgba(255,255,255,0.9);
            font-size: var(--font-sm);
        }

        .hero-visual-card .stat-val {
            font-weight: 700;
            color: #FFB800;
        }

        .hero-visual-card .mini-chart {
            height: 80px;
            background: linear-gradient(180deg, rgba(232,53,30,0.2) 0%, rgba(255,140,0,0.05) 100%);
            border-radius: var(--radius-sm);
            margin-top: 16px;
            position: relative;
            overflow: hidden;
        }

        .mini-chart-line {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 300 60'%3E%3Cpath d='M0 50 L30 40 L60 44 L90 25 L120 30 L150 12 L180 22 L210 8 L240 18 L270 5 L300 15' fill='none' stroke='%23FF8C00' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") no-repeat center bottom;
            background-size: 100% 100%;
        }

        @media (max-width: 1024px) {
            .hero-title {
                font-size: var(--font-3xl);
            }
        }

        @media (max-width: 768px) {
            .hero {
                min-height: auto;
                padding: 40px 0 50px;
            }
            .hero .container {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .hero-title {
                font-size: var(--font-2xl);
                letter-spacing: -0.5px;
            }
            .hero-desc {
                font-size: var(--font-base);
            }
            .hero-visual-card {
                max-width: 100%;
            }
            .btn {
                padding: 10px 20px;
                font-size: var(--font-sm);
            }
            .btn-lg {
                padding: 12px 24px;
                font-size: var(--font-base);
            }
            .hero-countdown {
                flex-wrap: wrap;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: var(--font-xl);
            }
            .hero-btns {
                flex-direction: column;
            }
            .hero-btns .btn {
                width: 100%;
                justify-content: center;
            }
        }

        /* ========== SECTION COMMON ========== */
        .section {
            padding: 64px 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 44px;
        }

        .section-tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            padding: 5px 14px;
            border-radius: var(--radius-full);
            font-size: var(--font-xs);
            font-weight: 600;
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: var(--font-2xl);
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
            letter-spacing: -0.3px;
        }

        .section-subtitle {
            font-size: var(--font-base);
            color: var(--text-weak);
            max-width: 560px;
            margin: 0 auto;
        }

        @media (max-width: 768px) {
            .section {
                padding: 40px 0;
            }
            .section-title {
                font-size: var(--font-xl);
            }
            .section-header {
                margin-bottom: 28px;
            }
        }

        /* ========== ADVANTAGES ========== */
        .advantages {
            background: var(--bg-white);
        }

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

        .adv-card {
            background: var(--bg);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            text-align: center;
            border: 1px solid var(--border-light);
            transition: all var(--transition-slow);
            position: relative;
            overflow: hidden;
        }

        .adv-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            transform: scaleX(0);
            transition: transform var(--transition-slow);
            transform-origin: left;
        }

        .adv-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: transparent;
        }

        .adv-card:hover::before {
            transform: scaleX(1);
        }

        .adv-icon {
            width: 56px;
            height: 56px;
            margin: 0 auto 16px;
            background: linear-gradient(135deg, var(--primary-light), #FFF8F6);
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
        }

        .adv-card h3 {
            font-size: var(--font-base);
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text);
        }

        .adv-card p {
            font-size: var(--font-sm);
            color: var(--text-weak);
            line-height: 1.6;
        }

        @media (max-width: 1024px) {
            .advantages-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .advantages-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== CATEGORY ENTRY ========== */
        .category-entry {
            background: var(--bg);
        }

        .category-card {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            background: var(--bg-white);
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition-slow);
        }

        .category-card:hover {
            box-shadow: var(--shadow-xl);
            transform: translateY(-2px);
        }

        .category-card-img {
            min-height: 280px;
            background-size: cover;
            background-position: center;
            position: relative;
        }

        .category-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }

        .category-card-body {
            padding: 36px 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .category-card-body .tag {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            padding: 4px 12px;
            border-radius: var(--radius-full);
            font-size: var(--font-xs);
            font-weight: 600;
            margin-bottom: 12px;
            width: fit-content;
        }

        .category-card-body h3 {
            font-size: var(--font-xl);
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }

        .category-card-body p {
            color: var(--text-secondary);
            font-size: var(--font-sm);
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: var(--font-sm);
            border-radius: var(--radius-full);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition);
            cursor: pointer;
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
        }

        .btn-accent:hover {
            background: #e07b00;
            box-shadow: var(--shadow-md);
            transform: translateY(-1px);
        }

        @media (max-width: 768px) {
            .category-card {
                grid-template-columns: 1fr;
            }
            .category-card-img {
                min-height: 200px;
            }
            .category-card-body {
                padding: 24px 20px;
            }
        }

        /* ========== CMS LIST ========== */
        .cms-section {
            background: var(--bg-white);
        }

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

        .cms-item {
            background: var(--bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: all var(--transition-slow);
            display: flex;
            flex-direction: column;
        }

        .cms-item:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: transparent;
        }

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

        .cms-item-img .cms-category-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(0,0,0,0.65);
            color: #fff;
            padding: 4px 10px;
            border-radius: var(--radius-full);
            font-size: var(--font-xs);
            font-weight: 500;
            backdrop-filter: blur(4px);
        }

        .cms-item-body {
            padding: 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .cms-item-body h4 {
            font-size: var(--font-base);
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text);
            line-height: 1.4;
        }

        .cms-item-body h4 a {
            color: inherit;
            transition: color var(--transition);
        }

        .cms-item-body h4 a:hover {
            color: var(--primary);
        }

        .cms-item-body .cms-excerpt {
            font-size: var(--font-sm);
            color: var(--text-weak);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .cms-item-body .cms-meta {
            font-size: var(--font-xs);
            color: var(--text-weak);
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 10px;
            border-top: 1px solid var(--border-light);
        }

        .cms-empty {
            text-align: center;
            padding: 48px 20px;
            color: var(--text-weak);
            font-size: var(--font-base);
            grid-column: 1 / -1;
        }

        @media (max-width: 1024px) {
            .cms-list {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .cms-list {
                grid-template-columns: 1fr;
            }
        }

        /* ========== STATS ========== */
        .stats-section {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
            color: #fff;
            padding: 56px 0;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }

        .stat-item .stat-number {
            font-size: var(--font-3xl);
            font-weight: 800;
            letter-spacing: -1px;
            background: linear-gradient(135deg, #FF8C00, #FFB800);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .stat-item .stat-label {
            font-size: var(--font-sm);
            color: rgba(255,255,255,0.7);
            margin-top: 4px;
        }

        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .stat-item .stat-number {
                font-size: var(--font-2xl);
            }
        }

        /* ========== FEATURES ========== */
        .features {
            background: var(--bg);
        }

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

        .feature-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            padding: 28px;
            display: flex;
            gap: 20px;
            border: 1px solid var(--border-light);
            transition: all var(--transition-slow);
            align-items: flex-start;
        }

        .feature-card:hover {
            box-shadow: var(--shadow-lg);
            border-color: transparent;
            transform: translateY(-2px);
        }

        .feature-card .feat-img {
            width: 100px;
            height: 80px;
            border-radius: var(--radius);
            object-fit: cover;
            flex-shrink: 0;
        }

        .feature-card .feat-content h4 {
            font-weight: 700;
            font-size: var(--font-base);
            margin-bottom: 4px;
            color: var(--text);
        }

        .feature-card .feat-content p {
            font-size: var(--font-sm);
            color: var(--text-weak);
            line-height: 1.6;
        }

        @media (max-width: 768px) {
            .features-grid {
                grid-template-columns: 1fr;
            }
            .feature-card {
                flex-direction: column;
            }
            .feature-card .feat-img {
                width: 100%;
                height: 160px;
            }
        }

        /* ========== FAQ ========== */
        .faq-section {
            background: var(--bg-white);
        }

        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-question {
            padding: 18px 22px;
            font-weight: 600;
            font-size: var(--font-base);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text);
            user-select: none;
        }

        .faq-question .faq-arrow {
            transition: transform var(--transition);
            font-size: var(--font-sm);
            color: var(--text-weak);
            flex-shrink: 0;
        }

        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-slow);
            font-size: var(--font-sm);
            color: var(--text-secondary);
            line-height: 1.7;
            padding: 0 22px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        .faq-item.open {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-sm);
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, #E8351E 0%, #C41E0A 100%);
            color: #fff;
            text-align: center;
            padding: 60px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -20%;
            width: 70%;
            height: 200%;
            background: radial-gradient(ellipse, rgba(255,255,255,0.08) 0%, transparent 70%);
            z-index: 1;
        }

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

        .cta-section h2 {
            font-size: var(--font-2xl);
            font-weight: 700;
            margin-bottom: 10px;
        }

        .cta-section p {
            font-size: var(--font-md);
            opacity: 0.9;
            margin-bottom: 28px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .btn-white {
            background: #fff;
            color: var(--primary);
            border-color: #fff;
            font-weight: 700;
        }

        .btn-white:hover {
            background: #f0f0f0;
            border-color: #f0f0f0;
            box-shadow: var(--shadow-lg);
            transform: translateY(-2px);
        }

        @media (max-width: 768px) {
            .cta-section h2 {
                font-size: var(--font-xl);
            }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255,255,255,0.7);
            padding: 48px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 32px;
        }

        .footer-brand .footer-logo {
            font-size: var(--font-lg);
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }

        .footer-brand p {
            font-size: var(--font-sm);
            line-height: 1.7;
            color: rgba(255,255,255,0.5);
        }

        .footer-col h4 {
            color: #fff;
            font-weight: 600;
            font-size: var(--font-sm);
            margin-bottom: 12px;
            letter-spacing: 0.3px;
        }

        .footer-col a {
            display: block;
            font-size: var(--font-sm);
            color: rgba(255,255,255,0.5);
            padding: 4px 0;
            transition: color var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            font-size: var(--font-xs);
            color: rgba(255,255,255,0.4);
            gap: 10px;
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #6C3CE1;
            --primary-light: #8B5CF6;
            --primary-dark: #512DA8;
            --accent: #FF6B35;
            --accent-light: #FF8A5C;
            --accent-dark: #E55A28;
            --bg: #FAF9FD;
            --bg-white: #FFFFFF;
            --bg-card: #FFFFFF;
            --bg-dark: #1A1530;
            --bg-dark-secondary: #252040;
            --text: #1E1B2E;
            --text-secondary: #5A5670;
            --text-light: #8A85A0;
            --text-white: #FFFFFF;
            --text-on-primary: #FFFFFF;
            --border: #E8E5F0;
            --border-light: #F2EFF8;
            --radius-sm: 10px;
            --radius: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(30, 27, 46, 0.06);
            --shadow: 0 4px 16px rgba(30, 27, 46, 0.08);
            --shadow-md: 0 8px 28px rgba(30, 27, 46, 0.10);
            --shadow-lg: 0 16px 48px rgba(30, 27, 46, 0.14);
            --shadow-glow: 0 4px 24px rgba(108, 60, 225, 0.25);
            --transition: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
        }

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

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

        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border: 0;
        }

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

        a:hover {
            color: var(--primary-light);
        }

        button {
            font-family: var(--font-stack);
            cursor: pointer;
            border: none;
            outline: none;
        }

        input {
            font-family: var(--font-stack);
            outline: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
            line-height: 1.3;
            color: var(--text);
            font-weight: 700;
        }

        p {
            margin: 0;
        }

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

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Header */
        .site-header {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1000;
            height: var(--header-height);
            box-shadow: var(--shadow-sm);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            height: 100%;
            gap: 20px;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.3rem;
            color: var(--primary-dark);
            text-decoration: none;
            white-space: nowrap;
            flex-shrink: 0;
            transition: opacity var(--transition);
        }

        .nav-logo:hover {
            color: var(--primary-dark);
            opacity: 0.85;
        }

        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            font-size: 1.1rem;
            font-weight: 900;
            border-radius: var(--radius-sm);
            flex-shrink: 0;
            box-shadow: var(--shadow-glow);
        }

        .nav-search-wrap {
            display: flex;
            align-items: center;
            flex: 1;
            max-width: 420px;
            min-width: 200px;
            background: var(--bg);
            border: 2px solid var(--border);
            border-radius: 50px;
            overflow: hidden;
            transition: border-color var(--transition), box-shadow var(--transition);
            height: 44px;
        }

        .nav-search-wrap:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(108, 60, 225, 0.10);
        }

        .search-icon {
            padding-left: 16px;
            font-size: 1rem;
            color: var(--text-light);
            flex-shrink: 0;
            user-select: none;
        }

        .nav-search-input {
            flex: 1;
            border: none;
            background: transparent;
            padding: 10px 12px;
            font-size: 0.95rem;
            color: var(--text);
            min-width: 0;
        }

        .nav-search-input::placeholder {
            color: var(--text-light);
        }

        .nav-search-btn {
            background: var(--primary);
            color: #fff;
            padding: 10px 20px;
            font-weight: 600;
            font-size: 0.9rem;
            border-radius: 0 50px 50px 0;
            transition: background var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-search-btn:hover {
            background: var(--primary-dark);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }

        .nav-links a {
            display: block;
            padding: 8px 16px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-secondary);
            border-radius: 50px;
            transition: all var(--transition);
            white-space: nowrap;
            text-decoration: none;
        }

        .nav-links a:hover {
            color: var(--primary);
            background: rgba(108, 60, 225, 0.06);
        }

        .nav-links a.active {
            color: var(--primary);
            background: rgba(108, 60, 225, 0.10);
            font-weight: 700;
        }

        .nav-cta-btn {
            display: inline-block;
            padding: 10px 22px;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: #fff;
            font-weight: 700;
            font-size: 0.9rem;
            border-radius: 50px;
            white-space: nowrap;
            flex-shrink: 0;
            text-decoration: none;
            transition: all var(--transition);
            box-shadow: 0 4px 14px rgba(255, 107, 53, 0.35);
        }

        .nav-cta-btn:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(255, 107, 53, 0.45);
            color: #fff;
        }

        .nav-toggle {
            display: none;
            background: none;
            font-size: 1.6rem;
            color: var(--text);
            padding: 4px 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }

        .nav-toggle:hover {
            background: var(--border-light);
        }

        /* Breadcrumb */
        .breadcrumb-bar {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
            padding: 10px 0;
        }

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

        .breadcrumb a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: color var(--transition);
        }

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

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

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

        /* Main */
        main {
            min-height: 60vh;
        }

        /* Category Hero */
        .category-hero {
            background: linear-gradient(170deg, var(--bg-dark) 0%, var(--bg-dark-secondary) 60%, var(--bg-dark) 100%);
            padding: 60px 0 50px;
            position: relative;
            overflow: hidden;
            color: var(--text-white);
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -15%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(108, 60, 225, 0.20) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -20%;
            left: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 107, 53, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .category-hero .container {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 50px;
            flex-wrap: wrap;
        }

        .category-hero-content {
            flex: 1;
            min-width: 280px;
        }

        .category-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(255, 255, 255, 0.12);
            color: var(--accent-light);
            font-weight: 700;
            font-size: 0.85rem;
            border-radius: 50px;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .category-hero h1 {
            color: #fff;
            font-size: 2.8rem;
            font-weight: 900;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
            line-height: 1.2;
        }

        .category-hero h1 .highlight {
            background: linear-gradient(135deg, var(--primary-light), #C4B5FD);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .category-hero-desc {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1.1rem;
            max-width: 520px;
            line-height: 1.7;
            margin-bottom: 24px;
        }

        .category-hero-stats {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
        }

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

        .hero-stat-num {
            font-size: 2rem;
            font-weight: 900;
            color: #fff;
            letter-spacing: -0.5px;
        }

        .hero-stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
        }

        .category-hero-visual {
            flex-shrink: 0;
            width: 340px;
            height: 280px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }

        .category-hero-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: var(--radius-lg);
        }

        .category-hero-visual::after {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: var(--radius-lg);
            background: linear-gradient(180deg, transparent 50%, rgba(26, 21, 48, 0.6) 100%);
            pointer-events: none;
        }

        /* Section Common */
        .section {
            padding: 64px 0;
        }

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

        .section-label {
            display: inline-block;
            padding: 5px 14px;
            background: rgba(108, 60, 225, 0.08);
            color: var(--primary);
            font-weight: 700;
            font-size: 0.82rem;
            border-radius: 50px;
            margin-bottom: 12px;
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 8px;
            letter-spacing: -0.3px;
        }

        .section-subtitle {
            color: var(--text-secondary);
            font-size: 1.05rem;
            max-width: 600px;
            margin: 0 auto;
        }

        /* Trend Overview Cards */
        .trend-overview-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .trend-overview-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 24px 22px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition-slow);
            position: relative;
            overflow: hidden;
        }

        .trend-overview-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(108, 60, 225, 0.20);
        }

        .trend-overview-card .card-icon-wrap {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            margin-bottom: 14px;
        }

        .trend-overview-card .card-icon-wrap.blue {
            background: rgba(59, 130, 246, 0.12);
            color: #3B82F6;
        }

        .trend-overview-card .card-icon-wrap.purple {
            background: rgba(108, 60, 225, 0.12);
            color: var(--primary);
        }

        .trend-overview-card .card-icon-wrap.orange {
            background: rgba(255, 107, 53, 0.12);
            color: var(--accent);
        }

        .trend-overview-card .card-icon-wrap.green {
            background: rgba(16, 185, 129, 0.12);
            color: #10B981;
        }

        .trend-overview-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .trend-overview-card .card-value {
            font-size: 1.8rem;
            font-weight: 900;
            color: var(--text);
            letter-spacing: -0.5px;
        }

        .trend-overview-card .card-change {
            font-size: 0.85rem;
            font-weight: 600;
            margin-top: 4px;
        }

        .trend-overview-card .card-change.up {
            color: #10B981;
        }

        .trend-overview-card .card-change.down {
            color: #EF4444;
        }

        /* Article List */
        .article-list-section {
            background: var(--bg-white);
        }

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

        .article-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition-slow);
            display: flex;
            flex-direction: column;
        }

        .article-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-md);
            border-color: rgba(108, 60, 225, 0.18);
        }

        .article-card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }

        .article-card-body {
            padding: 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .article-card-tag {
            display: inline-block;
            padding: 4px 12px;
            background: rgba(108, 60, 225, 0.08);
            color: var(--primary);
            font-weight: 600;
            font-size: 0.78rem;
            border-radius: 50px;
            align-self: flex-start;
        }

        .article-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            line-height: 1.5;
            color: var(--text);
        }

        .article-card h3 a {
            color: var(--text);
            text-decoration: none;
            transition: color var(--transition);
        }

        .article-card h3 a:hover {
            color: var(--primary);
        }

        .article-card-excerpt {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.6;
            flex: 1;
        }

        .article-card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.82rem;
            color: var(--text-light);
        }

        .article-card-meta .meta-dot {
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--border);
        }

        /* Features Strip */
        .features-strip {
            background: var(--bg-dark);
            padding: 50px 0;
        }

        .features-strip-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .feature-strip-item {
            text-align: center;
            color: #fff;
        }

        .feature-strip-item .fs-icon {
            font-size: 2.2rem;
            margin-bottom: 10px;
            display: block;
        }

        .feature-strip-item .fs-title {
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 4px;
        }

        .feature-strip-item .fs-desc {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
        }

        /* Hot Topics */
        .hot-topics-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .hot-topic-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 28px 26px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            display: flex;
            gap: 20px;
            align-items: flex-start;
            transition: all var(--transition-slow);
        }

        .hot-topic-card:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(108, 60, 225, 0.20);
            transform: translateY(-2px);
        }

        .hot-topic-rank {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 1.2rem;
        }

        .hot-topic-rank.silver {
            background: linear-gradient(135deg, #94A3B8, #CBD5E1);
        }

        .hot-topic-rank.bronze {
            background: linear-gradient(135deg, #D97706, #F59E0B);
        }

        .hot-topic-content h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .hot-topic-content h4 a {
            color: var(--text);
            text-decoration: none;
            transition: color var(--transition);
        }

        .hot-topic-content h4 a:hover {
            color: var(--primary);
        }

        .hot-topic-content p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(160deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
            padding: 60px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: 50%;
            transform: translateX(-50%);
            width: 700px;
            height: 700px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 65%);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .cta-section h2 {
            color: #fff;
            font-size: 2.2rem;
            font-weight: 900;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 1.1rem;
            max-width: 550px;
            margin: 0 auto 28px;
        }

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

        .btn {
            display: inline-block;
            padding: 14px 32px;
            font-weight: 700;
            font-size: 1rem;
            border-radius: 50px;
            text-decoration: none;
            transition: all var(--transition);
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-primary {
            background: #fff;
            color: var(--primary-dark);
            box-shadow: var(--shadow-md);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
            color: var(--primary-dark);
        }

        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.5);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 16px rgba(255, 107, 53, 0.4);
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 22px rgba(255, 107, 53, 0.5);
            color: #fff;
        }

        /* FAQ */
        .faq-section {
            background: var(--bg-white);
        }

        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(108, 60, 225, 0.20);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 22px;
            background: none;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: color var(--transition);
        }

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

        .faq-arrow {
            flex-shrink: 0;
            font-size: 0.8rem;
            color: var(--text-light);
            transition: transform var(--transition);
        }

        .faq-answer {
            padding: 0 22px 18px;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
        }

        .faq-item.open {
            border-color: rgba(108, 60, 225, 0.30);
            box-shadow: var(--shadow-sm);
        }

        /* Pagination */
        .pagination {
            display: flex;
            justify-content: center;
            gap: 8px;
            margin-top: 36px;
            flex-wrap: wrap;
        }

        .pagination a,
        .pagination span {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 12px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition);
            text-decoration: none;
            border: 1px solid var(--border);
            color: var(--text-secondary);
            background: var(--bg-white);
        }

        .pagination a:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(108, 60, 225, 0.04);
        }

        .pagination .current {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 700;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 50px 0 24px;
        }

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

        .footer-logo {
            font-size: 1.5rem;
            font-weight: 900;
            color: #fff;
            margin-bottom: 10px;
            letter-spacing: -0.3px;
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            max-width: 360px;
        }

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

        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            padding: 5px 0;
            text-decoration: none;
            transition: color var(--transition);
        }

        .footer-col a:hover {
            color: #fff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.4);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .trend-overview-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

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

            .hot-topics-grid {
                grid-template-columns: 1fr 1fr;
            }

            .category-hero h1 {
                font-size: 2.2rem;
            }

            .category-hero-visual {
                width: 260px;
                height: 220px;
            }

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

        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
            }

            .site-header .container {
                gap: 12px;
                flex-wrap: wrap;
            }

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

            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 0.95rem;
            }

            .nav-search-wrap {
                order: 3;
                flex: 1 1 100%;
                max-width: 100%;
                height: 40px;
            }

            .nav-toggle {
                display: block;
                order: 2;
                margin-left: auto;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: 12px 24px;
                gap: 4px;
                border-bottom: 2px solid var(--border);
                box-shadow: var(--shadow-md);
                z-index: 999;
            }

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

            .nav-links a {
                padding: 10px 16px;
                border-radius: var(--radius-sm);
                width: 100%;
            }

            .nav-cta-btn {
                display: none;
            }

            .category-hero {
                padding: 40px 0 36px;
            }

            .category-hero .container {
                flex-direction: column;
                gap: 28px;
            }

            .category-hero h1 {
                font-size: 1.8rem;
            }

            .category-hero-visual {
                width: 100%;
                height: 200px;
            }

            .category-hero-stats {
                gap: 18px;
            }

            .hero-stat-num {
                font-size: 1.5rem;
            }

            .trend-overview-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }

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

            .hot-topics-grid {
                grid-template-columns: 1fr;
            }

            .features-strip-grid {
                grid-template-columns: 1fr 1fr;
                gap: 18px;
            }

            .section {
                padding: 44px 0;
            }

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

            .cta-section h2 {
                font-size: 1.6rem;
            }

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

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

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .trend-overview-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .features-strip-grid {
                grid-template-columns: 1fr;
            }

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

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

            .pagination a,
            .pagination span {
                min-width: 34px;
                height: 34px;
                font-size: 0.82rem;
                padding: 0 10px;
            }

            .btn {
                padding: 12px 24px;
                font-size: 0.9rem;
            }

            .cta-btn-group {
                flex-direction: column;
                align-items: center;
            }

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

        /* Utility */
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border: 0;
        }

/* roulang page: article */
:root {
            --color-primary: #e63946;
            --color-primary-dark: #c1121f;
            --color-primary-light: #ff6b6b;
            --color-accent: #f4a261;
            --color-accent-gold: #ffd166;
            --color-bg: #f8f9fa;
            --color-bg-alt: #f1f3f5;
            --color-surface: #ffffff;
            --color-text: #2b2d42;
            --color-text-secondary: #6c757d;
            --color-text-muted: #adb5bd;
            --color-border: #e9ecef;
            --color-border-light: #f1f3f5;
            --color-success: #2ecc71;
            --color-warning: #f39c12;
            --color-info: #3498db;
            --color-dark-overlay: rgba(29, 53, 87, 0.85);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --radius-full: 50px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.1), 0 4px 12px rgba(0, 0, 0, 0.05);
            --shadow-xl: 0 20px 48px rgba(0, 0, 0, 0.12), 0 8px 20px rgba(0, 0, 0, 0.06);
            --shadow-card-hover: 0 16px 36px rgba(230, 57, 70, 0.15), 0 6px 14px rgba(0, 0, 0, 0.08);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-size-xs: 0.75rem;
            --font-size-sm: 0.875rem;
            --font-size-base: 1rem;
            --font-size-md: 1.1rem;
            --font-size-lg: 1.25rem;
            --font-size-xl: 1.5rem;
            --font-size-2xl: 1.9rem;
            --font-size-3xl: 2.4rem;
            --font-size-hero: 3rem;
            --line-height-tight: 1.2;
            --line-height-base: 1.65;
            --line-height-relaxed: 1.8;
            --line-height-loose: 1.9;
            --container-max: 1240px;
            --container-narrow: 860px;
            --container-sidebar: 1120px;
            --spacing-xs: 0.4rem;
            --spacing-sm: 0.75rem;
            --spacing-md: 1.25rem;
            --spacing-lg: 2rem;
            --spacing-xl: 3rem;
            --spacing-2xl: 4.5rem;
            --spacing-3xl: 6rem;
            --header-height: 72px;
            --sidebar-width: 320px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: var(--font-size-base);
            line-height: var(--line-height-base);
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
        }

        input {
            font-family: inherit;
            outline: none;
        }

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

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--spacing-lg);
        }

        .container-narrow {
            max-width: var(--container-narrow);
        }

        .container-sidebar {
            max-width: var(--container-sidebar);
        }

        /* ===== HEADER / NAV ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--color-surface);
            border-bottom: 1px solid var(--color-border);
            box-shadow: var(--shadow-sm);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            height: 100%;
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 700;
            font-size: var(--font-size-xl);
            color: var(--color-text);
            flex-shrink: 0;
            transition: color var(--transition-fast);
            white-space: nowrap;
            letter-spacing: -0.02em;
        }

        .nav-logo:hover {
            color: var(--color-primary);
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            color: #fff;
            border-radius: var(--radius-sm);
            font-size: 1.1rem;
            font-weight: 800;
            flex-shrink: 0;
            box-shadow: 0 3px 10px rgba(230, 57, 70, 0.3);
        }

        .nav-search-wrap {
            display: flex;
            align-items: center;
            flex: 1;
            max-width: 420px;
            min-width: 200px;
            background: var(--color-bg-alt);
            border-radius: var(--radius-full);
            border: 2px solid transparent;
            transition: all var(--transition-base);
            overflow: hidden;
            height: 42px;
            margin: 0 auto;
        }

        .nav-search-wrap:focus-within {
            border-color: var(--color-primary);
            background: var(--color-surface);
            box-shadow: 0 0 0 4px rgba(230, 57, 70, 0.08);
        }

        .search-icon {
            padding-left: 1rem;
            font-size: 1rem;
            flex-shrink: 0;
            opacity: 0.5;
            pointer-events: none;
            user-select: none;
        }

        .nav-search-input {
            flex: 1;
            border: none;
            background: transparent;
            padding: 0 0.6rem;
            font-size: var(--font-size-sm);
            color: var(--color-text);
            min-width: 0;
            height: 100%;
        }

        .nav-search-input::placeholder {
            color: var(--color-text-muted);
        }

        .nav-search-btn {
            background: var(--color-primary);
            color: #fff;
            padding: 0 1.2rem;
            height: 100%;
            font-size: var(--font-size-sm);
            font-weight: 600;
            border-radius: 0 var(--radius-full) var(--radius-full) 0;
            transition: all var(--transition-fast);
            white-space: nowrap;
            flex-shrink: 0;
            letter-spacing: 0.02em;
        }

        .nav-search-btn:hover {
            background: var(--color-primary-dark);
        }

        .nav-search-btn:active {
            transform: scale(0.96);
        }

        .nav-toggle {
            display: none;
            background: none;
            font-size: 1.5rem;
            color: var(--color-text);
            padding: 0.4rem;
            line-height: 1;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
            flex-shrink: 0;
        }

        .nav-toggle:hover {
            background: var(--color-bg-alt);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.3rem;
            flex-shrink: 0;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 0.45rem 1rem;
            font-size: var(--font-size-sm);
            font-weight: 500;
            color: var(--color-text-secondary);
            border-radius: var(--radius-full);
            transition: all var(--transition-fast);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .nav-links a:hover {
            color: var(--color-primary);
            background: rgba(230, 57, 70, 0.05);
        }

        .nav-links a.active {
            color: var(--color-primary);
            background: rgba(230, 57, 70, 0.08);
            font-weight: 600;
        }

        .nav-cta-btn {
            display: inline-flex;
            align-items: center;
            padding: 0.5rem 1.4rem;
            font-size: var(--font-size-sm);
            font-weight: 600;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
            color: #fff;
            border-radius: var(--radius-full);
            transition: all var(--transition-base);
            flex-shrink: 0;
            white-space: nowrap;
            letter-spacing: 0.02em;
            box-shadow: 0 4px 14px rgba(230, 57, 70, 0.3);
        }

        .nav-cta-btn:hover {
            box-shadow: 0 6px 20px rgba(230, 57, 70, 0.45);
            transform: translateY(-1px);
        }

        .nav-cta-btn:active {
            transform: scale(0.96);
        }

        /* ===== PAGE BANNER ===== */
        .page-banner {
            background: linear-gradient(160deg, #1d3557 0%, #2a4a7f 40%, #1d3557 100%);
            position: relative;
            overflow: hidden;
            padding: var(--spacing-xl) 0;
            color: #fff;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -80px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(255, 209, 102, 0.2) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -60px;
            width: 220px;
            height: 220px;
            background: radial-gradient(circle, rgba(230, 57, 70, 0.25) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: var(--font-size-sm);
            color: rgba(255, 255, 255, 0.7);
            flex-wrap: wrap;
            margin-bottom: var(--spacing-sm);
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
            transition: color var(--transition-fast);
        }

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

        .breadcrumb .separator {
            color: rgba(255, 255, 255, 0.4);
            font-size: 0.7rem;
            pointer-events: none;
            user-select: none;
        }

        .breadcrumb .current {
            color: var(--color-accent-gold);
            font-weight: 500;
        }

        .page-banner-title {
            font-size: var(--font-size-2xl);
            font-weight: 700;
            line-height: var(--line-height-tight);
            letter-spacing: -0.02em;
            max-width: 700px;
        }

        /* ===== MAIN LAYOUT ===== */
        .main-content {
            flex: 1;
            padding: var(--spacing-xl) 0 var(--spacing-2xl);
        }

        .content-layout {
            display: flex;
            gap: var(--spacing-xl);
            align-items: flex-start;
        }

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

        .content-sidebar {
            width: var(--sidebar-width);
            flex-shrink: 0;
            position: sticky;
            top: calc(var(--header-height) + var(--spacing-lg));
            display: flex;
            flex-direction: column;
            gap: var(--spacing-lg);
        }

        /* ===== ARTICLE CARD ===== */
        .article-main-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
        }

        .article-featured-image {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            display: block;
            background: var(--color-bg-alt);
        }

        .article-body {
            padding: var(--spacing-xl);
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: var(--spacing-md);
            flex-wrap: wrap;
            margin-bottom: var(--spacing-md);
            font-size: var(--font-size-sm);
            color: var(--color-text-secondary);
        }

        .article-meta .meta-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            background: linear-gradient(135deg, rgba(230, 57, 70, 0.08), rgba(244, 162, 97, 0.08));
            color: var(--color-primary);
            padding: 0.3rem 0.8rem;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: var(--font-size-xs);
            letter-spacing: 0.02em;
            border: 1px solid rgba(230, 57, 70, 0.12);
        }

        .article-meta .meta-date {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            color: var(--color-text-muted);
        }

        .article-meta .meta-dot {
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: var(--color-text-muted);
            flex-shrink: 0;
        }

        .article-title-h1 {
            font-size: var(--font-size-3xl);
            font-weight: 800;
            line-height: var(--line-height-tight);
            color: var(--color-text);
            margin-bottom: var(--spacing-md);
            letter-spacing: -0.03em;
        }

        .article-content {
            font-size: var(--font-size-md);
            line-height: var(--line-height-relaxed);
            color: var(--color-text);
        }

        .article-content h2 {
            font-size: var(--font-size-xl);
            font-weight: 700;
            margin: var(--spacing-lg) 0 var(--spacing-sm);
            color: var(--color-text);
            letter-spacing: -0.015em;
        }

        .article-content h3 {
            font-size: var(--font-size-lg);
            font-weight: 600;
            margin: var(--spacing-md) 0 var(--spacing-sm);
            color: var(--color-text);
        }

        .article-content p {
            margin-bottom: var(--spacing-md);
        }

        .article-content ul,
        .article-content ol {
            margin: var(--spacing-sm) 0 var(--spacing-md) var(--spacing-lg);
        }

        .article-content li {
            margin-bottom: 0.4rem;
        }

        .article-content strong {
            font-weight: 700;
            color: var(--color-text);
        }

        .article-content blockquote {
            border-left: 4px solid var(--color-primary);
            padding: var(--spacing-sm) var(--spacing-md);
            margin: var(--spacing-md) 0;
            background: var(--color-bg-alt);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--color-text-secondary);
            font-style: italic;
        }

        .article-content img {
            border-radius: var(--radius-md);
            margin: var(--spacing-md) 0;
        }

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

        .article-tags-row {
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);
            flex-wrap: wrap;
            margin-top: var(--spacing-md);
        }

        .article-tag {
            display: inline-block;
            padding: 0.35rem 0.9rem;
            background: var(--color-bg-alt);
            color: var(--color-text-secondary);
            border-radius: var(--radius-full);
            font-size: var(--font-size-xs);
            transition: all var(--transition-fast);
            border: 1px solid transparent;
        }

        .article-tag:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: rgba(230, 57, 70, 0.04);
        }

        /* ===== NOT FOUND STATE ===== */
        .not-found-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: var(--spacing-2xl);
            text-align: center;
            border: 1px solid var(--color-border-light);
        }

        .not-found-icon {
            font-size: 4rem;
            margin-bottom: var(--spacing-md);
            display: block;
        }

        .not-found-card h2 {
            font-size: var(--font-size-2xl);
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
            color: var(--color-text);
        }

        .not-found-card p {
            color: var(--color-text-secondary);
            margin-bottom: var(--spacing-lg);
            font-size: var(--font-size-md);
        }

        .btn-back-home {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.7rem 1.8rem;
            background: var(--color-primary);
            color: #fff;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: var(--font-size-sm);
            transition: all var(--transition-base);
            box-shadow: 0 4px 14px rgba(230, 57, 70, 0.3);
        }

        .btn-back-home:hover {
            box-shadow: 0 8px 24px rgba(230, 57, 70, 0.4);
            transform: translateY(-2px);
        }

        /* ===== SIDEBAR ===== */
        .sidebar-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
        }

        .sidebar-card-header {
            padding: var(--spacing-md) var(--spacing-lg);
            border-bottom: 1px solid var(--color-border-light);
            font-weight: 700;
            font-size: var(--font-size-base);
            color: var(--color-text);
            letter-spacing: -0.01em;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }

        .sidebar-card-header .header-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-primary);
            flex-shrink: 0;
        }

        .sidebar-card-body {
            padding: var(--spacing-md);
        }

        .sidebar-post-item {
            display: flex;
            gap: var(--spacing-sm);
            padding: var(--spacing-sm) 0;
            border-bottom: 1px solid var(--color-border-light);
            transition: all var(--transition-fast);
            border-radius: var(--radius-sm);
        }

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

        .sidebar-post-item:hover {
            background: var(--color-bg-alt);
            padding-left: 0.5rem;
            padding-right: 0.5rem;
            margin-left: -0.5rem;
            margin-right: -0.5rem;
        }

        .sidebar-post-thumb {
            width: 70px;
            height: 52px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--color-bg-alt);
        }

        .sidebar-post-info {
            flex: 1;
            min-width: 0;
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 0.25rem;
        }

        .sidebar-post-title {
            font-size: var(--font-size-sm);
            font-weight: 600;
            line-height: var(--line-height-tight);
            color: var(--color-text);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition-fast);
        }

        .sidebar-post-item:hover .sidebar-post-title {
            color: var(--color-primary);
        }

        .sidebar-post-date {
            font-size: var(--font-size-xs);
            color: var(--color-text-muted);
        }

        .sidebar-cta-card {
            background: linear-gradient(145deg, #e63946, #ff6b35);
            border-radius: var(--radius-lg);
            padding: var(--spacing-lg);
            color: #fff;
            text-align: center;
            box-shadow: var(--shadow-lg);
            position: relative;
            overflow: hidden;
        }

        .sidebar-cta-card::before {
            content: '';
            position: absolute;
            top: -30px;
            right: -30px;
            width: 100px;
            height: 100px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            pointer-events: none;
        }

        .sidebar-cta-card h4 {
            font-size: var(--font-size-lg);
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
            position: relative;
            z-index: 1;
        }

        .sidebar-cta-card p {
            font-size: var(--font-size-sm);
            opacity: 0.9;
            margin-bottom: var(--spacing-md);
            position: relative;
            z-index: 1;
            line-height: var(--line-height-base);
        }

        .sidebar-cta-btn {
            display: inline-block;
            padding: 0.6rem 1.6rem;
            background: #fff;
            color: var(--color-primary);
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: var(--font-size-sm);
            transition: all var(--transition-base);
            position: relative;
            z-index: 1;
            letter-spacing: 0.02em;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        }

        .sidebar-cta-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
        }

        /* ===== RELATED POSTS SECTION ===== */
        .related-section {
            margin-top: var(--spacing-xl);
        }

        .related-section-title {
            font-size: var(--font-size-xl);
            font-weight: 700;
            margin-bottom: var(--spacing-lg);
            color: var(--color-text);
            letter-spacing: -0.015em;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .related-section-title::before {
            content: '';
            display: inline-block;
            width: 4px;
            height: 24px;
            background: var(--color-primary);
            border-radius: 2px;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--spacing-lg);
        }

        .related-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-smooth);
            display: flex;
            flex-direction: column;
        }

        .related-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            border-color: rgba(230, 57, 70, 0.2);
        }

        .related-card-image {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            display: block;
            background: var(--color-bg-alt);
        }

        .related-card-body {
            padding: var(--spacing-md);
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: var(--spacing-xs);
        }

        .related-card-category {
            display: inline-block;
            font-size: var(--font-size-xs);
            font-weight: 600;
            color: var(--color-primary);
            background: rgba(230, 57, 70, 0.06);
            padding: 0.2rem 0.7rem;
            border-radius: var(--radius-full);
            width: fit-content;
            letter-spacing: 0.02em;
        }

        .related-card-title {
            font-size: var(--font-size-base);
            font-weight: 700;
            line-height: var(--line-height-tight);
            color: var(--color-text);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color var(--transition-fast);
        }

        .related-card:hover .related-card-title {
            color: var(--color-primary);
        }

        .related-card-date {
            font-size: var(--font-size-xs);
            color: var(--color-text-muted);
            margin-top: auto;
        }

        /* ===== CTA SECTION ===== */
        .cta-section {
            background: linear-gradient(160deg, #1d3557 0%, #2a4a7f 100%);
            border-radius: var(--radius-xl);
            padding: var(--spacing-2xl);
            text-align: center;
            color: #fff;
            margin-top: var(--spacing-xl);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -50px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(255, 209, 102, 0.25) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section h3 {
            font-size: var(--font-size-2xl);
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
            position: relative;
            z-index: 1;
            letter-spacing: -0.02em;
        }

        .cta-section p {
            font-size: var(--font-size-md);
            opacity: 0.85;
            margin-bottom: var(--spacing-lg);
            position: relative;
            z-index: 1;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-btn-group {
            display: flex;
            gap: var(--spacing-md);
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 1;
        }

        .btn-primary-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.75rem 2rem;
            background: var(--color-accent-gold);
            color: #1d3557;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: var(--font-size-base);
            transition: all var(--transition-base);
            letter-spacing: 0.02em;
            box-shadow: 0 6px 20px rgba(255, 209, 102, 0.35);
        }

        .btn-primary-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 28px rgba(255, 209, 102, 0.5);
        }

        .btn-outline-cta {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.75rem 2rem;
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.4);
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: var(--font-size-base);
            transition: all var(--transition-base);
            letter-spacing: 0.02em;
        }

        .btn-outline-cta:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: #1a1d2e;
            color: rgba(255, 255, 255, 0.7);
            padding: var(--spacing-2xl) 0 var(--spacing-lg);
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: var(--spacing-xl);
            margin-bottom: var(--spacing-xl);
        }

        .footer-logo {
            font-size: var(--font-size-xl);
            font-weight: 700;
            color: #fff;
            margin-bottom: var(--spacing-sm);
            letter-spacing: -0.02em;
        }

        .footer-brand p {
            font-size: var(--font-size-sm);
            line-height: var(--line-height-relaxed);
            opacity: 0.7;
            max-width: 320px;
        }

        .footer-col h4 {
            color: #fff;
            font-weight: 600;
            font-size: var(--font-size-sm);
            margin-bottom: var(--spacing-md);
            letter-spacing: 0.03em;
            text-transform: uppercase;
            opacity: 0.9;
        }

        .footer-col a {
            display: block;
            font-size: var(--font-size-sm);
            color: rgba(255, 255, 255, 0.6);
            padding: 0.3rem 0;
            transition: all var(--transition-fast);
        }

        .footer-col a:hover {
            color: var(--color-accent-gold);
            padding-left: 0.4rem;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: var(--spacing-sm);
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: var(--spacing-lg);
            font-size: var(--font-size-xs);
            opacity: 0.55;
        }

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .content-layout {
                flex-direction: column;
            }

            .content-sidebar {
                width: 100%;
                position: static;
                flex-direction: row;
                flex-wrap: wrap;
                gap: var(--spacing-md);
            }

            .content-sidebar>* {
                flex: 1;
                min-width: 260px;
            }

            .sidebar-cta-card {
                flex: 0 0 100%;
            }

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

            .article-title-h1 {
                font-size: var(--font-size-2xl);
            }

            .page-banner-title {
                font-size: var(--font-size-xl);
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: var(--spacing-lg);
            }

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

            .nav-search-wrap {
                max-width: 280px;
            }

            .nav-links a {
                padding: 0.4rem 0.7rem;
                font-size: var(--font-size-xs);
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 62px;
            }

            .container {
                padding: 0 var(--spacing-md);
            }

            .site-header .container {
                flex-wrap: wrap;
                gap: var(--spacing-sm);
            }

            .nav-logo {
                font-size: var(--font-size-lg);
            }

            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }

            .nav-search-wrap {
                order: 3;
                flex: 0 0 100%;
                max-width: 100%;
                margin: 0;
                height: 38px;
            }

            .nav-toggle {
                display: block;
                margin-left: auto;
            }

            .nav-links {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--color-surface);
                flex-direction: column;
                padding: var(--spacing-md);
                border-bottom: 2px solid var(--color-border);
                box-shadow: var(--shadow-lg);
                gap: 0.2rem;
                z-index: 999;
            }

            .nav-links.active-mobile {
                display: flex;
            }

            .nav-links a {
                width: 100%;
                padding: 0.7rem 1rem;
                font-size: var(--font-size-base);
                border-radius: var(--radius-md);
            }

            .nav-cta-btn {
                font-size: var(--font-size-xs);
                padding: 0.4rem 1rem;
            }

            .page-banner {
                padding: var(--spacing-lg) 0;
            }

            .page-banner-title {
                font-size: var(--font-size-lg);
            }

            .article-title-h1 {
                font-size: var(--font-size-xl);
            }

            .article-body {
                padding: var(--spacing-md);
            }

            .article-content {
                font-size: var(--font-size-base);
            }

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

            .content-sidebar {
                flex-direction: column;
            }

            .content-sidebar>* {
                flex: none;
                min-width: 0;
            }

            .cta-section {
                padding: var(--spacing-xl) var(--spacing-md);
            }

            .cta-section h3 {
                font-size: var(--font-size-xl);
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: var(--spacing-lg);
            }

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

        @media (max-width: 520px) {
            .article-meta {
                gap: var(--spacing-sm);
                font-size: var(--font-size-xs);
            }

            .article-title-h1 {
                font-size: var(--font-size-lg);
            }

            .breadcrumb {
                font-size: var(--font-size-xs);
            }

            .related-section-title {
                font-size: var(--font-size-lg);
            }

            .btn-primary-cta,
            .btn-outline-cta {
                width: 100%;
                justify-content: center;
                padding: 0.65rem 1.4rem;
                font-size: var(--font-size-sm);
            }

            .cta-btn-group {
                flex-direction: column;
                gap: var(--spacing-sm);
            }

            .sidebar-post-thumb {
                width: 56px;
                height: 42px;
            }

            .sidebar-post-title {
                font-size: var(--font-size-xs);
            }

            .nav-cta-btn {
                display: none;
            }
        }