/* roulang page: index */
:root {
            --primary: #4f1fd4;
            --primary-dark: #3b14a8;
            --primary-light: #7c5ce7;
            --accent: #f97316;
            --accent-hover: #ea580c;
            --gold: #f59e0b;
            --gold-light: #fbbf24;
            --bg-dark: #0f0b1f;
            --bg-darker: #080614;
            --bg-card: #ffffff;
            --bg-light: #f8f7fc;
            --bg-soft: #f0edf8;
            --text-primary: #1a1625;
            --text-secondary: #5c5470;
            --text-muted: #8b839c;
            --text-light: #b8b0cc;
            --text-on-dark: #e8e4f0;
            --border-color: #e2ddf0;
            --border-light: #f0edf8;
            --shadow-sm: 0 1px 3px rgba(15, 11, 31, 0.06), 0 1px 2px rgba(15, 11, 31, 0.04);
            --shadow-md: 0 4px 16px rgba(15, 11, 31, 0.08), 0 2px 6px rgba(15, 11, 31, 0.04);
            --shadow-lg: 0 12px 40px rgba(15, 11, 31, 0.12), 0 4px 12px rgba(15, 11, 31, 0.06);
            --shadow-xl: 0 20px 60px rgba(15, 11, 31, 0.16), 0 8px 20px rgba(15, 11, 31, 0.08);
            --shadow-glow: 0 0 40px rgba(79, 31, 212, 0.25), 0 8px 24px rgba(79, 31, 212, 0.15);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --radius-full: 9999px;
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', system-ui, -apple-system, sans-serif;
            --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-base: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            --nav-height: 64px;
            --container-max: 1240px;
            --container-padding: 24px;
        }

        *,
        *::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: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background-color: #ffffff;
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

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

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

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

        ul,
        ol {
            list-style: none;
        }

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

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 1px 8px rgba(15, 11, 31, 0.04);
            transition: box-shadow var(--transition-base), background var(--transition-base);
            height: var(--nav-height);
        }

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
            background: rgba(255, 255, 255, 0.96);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 20px;
        }

        .header-left {
            display: flex;
            align-items: center;
            gap: 32px;
            flex-shrink: 0;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.15rem;
            color: var(--primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
            transition: opacity var(--transition-fast);
        }

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

        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: #fff;
            font-weight: 900;
            flex-shrink: 0;
            box-shadow: 0 4px 12px rgba(79, 31, 212, 0.3);
        }

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

        .nav-links a {
            padding: 8px 16px;
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

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

        .nav-links a.active {
            color: #fff;
            background: var(--primary);
            box-shadow: 0 4px 14px rgba(79, 31, 212, 0.3);
        }

        .nav-links a.active:hover {
            color: #fff;
            background: var(--primary-dark);
        }

        .header-right {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .header-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--bg-soft);
            border-radius: var(--radius-full);
            padding: 8px 16px;
            border: 2px solid transparent;
            transition: all var(--transition-fast);
        }

        .header-search:focus-within {
            border-color: var(--primary-light);
            background: #fff;
            box-shadow: 0 0 0 4px rgba(79, 31, 212, 0.06);
        }

        .header-search input {
            border: none;
            background: transparent;
            font-size: 0.875rem;
            color: var(--text-primary);
            width: 140px;
            transition: width var(--transition-base);
        }

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

        .header-search input:focus {
            width: 200px;
        }

        .search-icon {
            font-size: 1.1rem;
            color: var(--text-muted);
            flex-shrink: 0;
        }

        .btn-header-cta {
            padding: 10px 22px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 0.875rem;
            color: #fff;
            background: linear-gradient(135deg, var(--accent) 0%, #fb923c 100%);
            box-shadow: 0 4px 16px rgba(249, 115, 22, 0.35);
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .btn-header-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(249, 115, 22, 0.45);
            color: #fff;
        }

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

        .mobile-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--text-primary);
            background: var(--bg-soft);
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }

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

        /* ========== HERO ========== */
        .hero {
            position: relative;
            min-height: 620px;
            display: flex;
            align-items: center;
            background: var(--bg-dark);
            overflow: hidden;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 11, 31, 0.55) 0%, rgba(15, 11, 31, 0.8) 60%, rgba(15, 11, 31, 0.92) 100%);
            z-index: 1;
        }

        .hero .container {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 48px;
            flex-wrap: wrap;
        }

        .hero-content {
            flex: 1;
            min-width: 300px;
            max-width: 580px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.18);
            border-radius: var(--radius-full);
            padding: 6px 16px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--gold-light);
            margin-bottom: 20px;
            backdrop-filter: blur(10px);
            letter-spacing: 0.02em;
        }

        .hero-badge .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--gold);
            animation: pulse-dot 2s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.6);
            }
            50% {
                opacity: 0.6;
                box-shadow: 0 0 0 12px rgba(245, 158, 11, 0);
            }
        }

        .hero-title {
            font-size: clamp(2rem, 4.5vw, 3.2rem);
            font-weight: 900;
            color: #fff;
            line-height: 1.18;
            letter-spacing: -0.03em;
            margin-bottom: 16px;
        }

        .hero-title span {
            background: linear-gradient(135deg, var(--gold-light) 0%, var(--accent) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 480px;
        }

        .hero-buttons {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            align-items: center;
        }

        .btn-primary {
            padding: 14px 32px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 1rem;
            color: #fff;
            background: linear-gradient(135deg, var(--accent) 0%, #fb923c 100%);
            box-shadow: 0 8px 28px rgba(249, 115, 22, 0.4);
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            letter-spacing: 0.01em;
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 36px rgba(249, 115, 22, 0.5);
            color: #fff;
        }

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

        .btn-outline {
            padding: 14px 32px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 1rem;
            color: #fff;
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.35);
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.6);
            color: #fff;
        }

        .hero-visual {
            flex: 0 0 auto;
            width: 340px;
            height: 340px;
            border-radius: var(--radius-xl);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(8px);
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }

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

        .hero-stats-row {
            display: flex;
            gap: 28px;
            margin-top: 36px;
            flex-wrap: wrap;
        }

        .hero-stat {
            color: #fff;
        }

        .hero-stat .stat-num {
            font-size: 1.6rem;
            font-weight: 900;
            color: var(--gold-light);
            letter-spacing: -0.02em;
        }

        .hero-stat .stat-label {
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 2px;
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 80px 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 52px;
        }

        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--primary);
            background: var(--bg-soft);
            padding: 6px 16px;
            border-radius: var(--radius-full);
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: clamp(1.5rem, 3vw, 2.2rem);
            font-weight: 900;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            margin-bottom: 10px;
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 560px;
            margin: 0 auto;
        }

        /* ========== FEATURES GRID ========== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--primary-light));
            border-radius: 0 0 4px 4px;
            transition: width var(--transition-slow);
        }

        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--border-color);
        }

        .feature-card:hover::before {
            width: 70%;
        }

        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, var(--bg-soft) 0%, #e8e2f8 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 1.6rem;
            transition: all var(--transition-base);
        }

        .feature-card:hover .feature-icon {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            box-shadow: var(--shadow-glow);
            color: #fff;
        }

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

        .feature-card p {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ========== CATEGORY SECTION ========== */
        .category-section {
            background: var(--bg-light);
        }

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

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

        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-xl);
        }

        .category-card-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }

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

        .category-card:hover .category-card-img img {
            transform: scale(1.06);
        }

        .category-card-body {
            padding: 22px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .category-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: var(--radius-full);
            background: var(--bg-soft);
            color: var(--primary);
            letter-spacing: 0.03em;
            width: fit-content;
        }

        .category-card-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-primary);
        }

        .category-card-body p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        .category-link {
            font-weight: 700;
            font-size: 0.875rem;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: auto;
            transition: gap var(--transition-fast);
        }

        .category-link:hover {
            gap: 10px;
            color: var(--primary-dark);
        }

        .category-link .arrow {
            transition: transform var(--transition-fast);
        }

        .category-link:hover .arrow {
            transform: translateX(3px);
        }

        /* ========== NEWS LIST ========== */
        .news-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .news-item {
            display: flex;
            gap: 18px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 20px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            align-items: flex-start;
        }

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

        .news-thumb {
            width: 120px;
            height: 90px;
            border-radius: var(--radius-md);
            overflow: hidden;
            flex-shrink: 0;
            background: var(--bg-soft);
        }

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

        .news-info {
            flex: 1;
            min-width: 0;
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .news-meta {
            display: flex;
            gap: 10px;
            font-size: 0.75rem;
            color: var(--text-muted);
            align-items: center;
        }

        .news-cat {
            font-weight: 700;
            color: var(--accent);
            font-size: 0.72rem;
            background: #fff7ed;
            padding: 3px 10px;
            border-radius: var(--radius-full);
        }

        .news-title {
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text-primary);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-desc {
            font-size: 0.8rem;
            color: var(--text-muted);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 48px;
            color: var(--text-muted);
            font-size: 1rem;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 2px dashed var(--border-color);
        }

        /* ========== ACTIVITY / PROMO ========== */
        .promo-section {
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }

        .promo-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 11, 31, 0.9) 0%, rgba(15, 11, 31, 0.75) 100%);
            z-index: 1;
        }

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

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

        .promo-section .section-subtitle {
            color: rgba(255, 255, 255, 0.6);
        }

        .promo-section .section-label {
            background: rgba(255, 255, 255, 0.1);
            color: var(--gold-light);
        }

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

        .promo-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 28px 22px;
            backdrop-filter: blur(8px);
            transition: all var(--transition-base);
            text-align: center;
        }

        .promo-card:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.25);
            transform: translateY(-4px);
        }

        .promo-card .promo-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.4rem;
        }

        .promo-card h3 {
            color: #fff;
            font-weight: 700;
            font-size: 1.05rem;
            margin-bottom: 6px;
        }

        .promo-card p {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.85rem;
            line-height: 1.6;
        }

        .promo-timer {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(239, 68, 68, 0.2);
            border: 1px solid rgba(239, 68, 68, 0.3);
            padding: 8px 18px;
            border-radius: var(--radius-full);
            color: #fca5a5;
            font-weight: 700;
            font-size: 0.85rem;
            margin-top: 16px;
        }

        .promo-timer .timer-dot {
            animation: pulse-dot 1.5s ease-in-out infinite;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: #ef4444;
            display: inline-block;
        }

        /* ========== STATS SECTION ========== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 30px 20px;
            text-align: center;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
        }

        .stat-card:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border-color);
            transform: translateY(-2px);
        }

        .stat-card .stat-value {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--primary);
            letter-spacing: -0.03em;
        }

        .stat-card .stat-unit {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        .stat-card .stat-desc {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 6px;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-sm);
        }

        .faq-item:hover {
            border-color: var(--border-color);
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            padding: 20px 24px;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            user-select: none;
            transition: background var(--transition-fast);
        }

        .faq-question:hover {
            background: var(--bg-soft);
        }

        .faq-question .faq-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--bg-soft);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            flex-shrink: 0;
            transition: all var(--transition-fast);
            color: var(--text-muted);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-base);
            padding: 0 24px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 260px;
            padding: 0 24px 20px;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            pointer-events: none;
        }

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

        .cta-title {
            font-size: clamp(1.5rem, 3vw, 2rem);
            font-weight: 900;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

        .cta-desc {
            color: rgba(255, 255, 255, 0.7);
            font-size: 1rem;
            max-width: 500px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }

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

        .btn-cta-white {
            padding: 14px 36px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 1rem;
            color: var(--primary);
            background: #fff;
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.2);
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-cta-white:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 36px rgba(0, 0, 0, 0.3);
            color: var(--primary-dark);
        }

        .btn-cta-outline-white {
            padding: 14px 36px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 1rem;
            color: #fff;
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.5);
            transition: all var(--transition-base);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

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

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--bg-darker);
            color: var(--text-on-dark);
            padding: 56px 0 28px;
        }

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

        .footer-brand .logo-link {
            color: #fff;
            font-size: 1.1rem;
            margin-bottom: 12px;
            display: inline-flex;
        }

        .footer-brand .logo-link:hover {
            color: var(--gold-light);
        }

        .footer-brand p {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
            line-height: 1.7;
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul a {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
            transition: color var(--transition-fast);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.35);
        }

        .footer-bottom span {
            color: rgba(255, 255, 255, 0.5);
            font-weight: 600;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            :root {
                --container-padding: 20px;
                --nav-height: 58px;
            }
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .category-cards {
                grid-template-columns: repeat(2, 1fr);
            }
            .news-list {
                grid-template-columns: 1fr 1fr;
            }
            .promo-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .hero .container {
                flex-direction: column;
                text-align: center;
            }
            .hero-content {
                max-width: 100%;
            }
            .hero-desc {
                max-width: 100%;
                margin-left: auto;
                margin-right: auto;
            }
            .hero-buttons {
                justify-content: center;
            }
            .hero-stats-row {
                justify-content: center;
            }
            .hero-visual {
                width: 240px;
                height: 240px;
                margin: 0 auto;
            }
            .header-search input {
                width: 100px;
            }
            .header-search input:focus {
                width: 150px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --container-padding: 16px;
                --nav-height: 56px;
            }
            .section {
                padding: 52px 0;
            }
            .nav-links {
                display: none;
            }
            .header-search {
                display: none;
            }
            .btn-header-cta {
                display: none;
            }
            .mobile-toggle {
                display: flex;
            }
            .features-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }
            .category-cards {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .news-list {
                grid-template-columns: 1fr;
            }
            .promo-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .hero {
                min-height: 480px;
            }
            .hero-visual {
                width: 180px;
                height: 180px;
            }
            .hero-stats-row {
                gap: 20px;
            }
            .hero-stat .stat-num {
                font-size: 1.3rem;
            }
            .news-item {
                flex-direction: column;
                gap: 12px;
            }
            .news-thumb {
                width: 100%;
                height: 160px;
            }
            .feature-card {
                padding: 24px 16px;
            }
            .feature-icon {
                width: 44px;
                height: 44px;
                font-size: 1.3rem;
            }
            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }
            .btn-cta-white,
            .btn-cta-outline-white {
                width: 100%;
                justify-content: center;
                max-width: 340px;
            }
        }

        @media (max-width: 520px) {
            :root {
                --container-padding: 12px;
            }
            .section {
                padding: 40px 0;
            }
            .hero {
                min-height: 420px;
            }
            .features-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card {
                padding: 20px 14px;
            }
            .stat-card .stat-value {
                font-size: 1.8rem;
            }
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-desc {
                font-size: 0.9rem;
            }
            .hero-buttons {
                flex-direction: column;
                align-items: stretch;
            }
            .btn-primary,
            .btn-outline {
                justify-content: center;
                text-align: center;
            }
            .hero-visual {
                width: 140px;
                height: 140px;
            }
            .hero-stats-row {
                gap: 14px;
            }
            .promo-card {
                padding: 20px 16px;
            }
            .faq-question {
                padding: 16px 18px;
                font-size: 0.9rem;
            }
            .faq-answer {
                padding: 0 18px;
                font-size: 0.82rem;
            }
            .faq-item.open .faq-answer {
                padding: 0 18px 16px;
            }
            .category-card-img {
                height: 160px;
            }
            .logo-link {
                font-size: 1rem;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 1rem;
            }
            .btn-header-cta {
                padding: 8px 16px;
                font-size: 0.8rem;
            }
        }

        /* Mobile nav overlay */
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            z-index: 999;
            flex-direction: column;
            padding: 24px;
            gap: 8px;
        }

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

        .mobile-nav-overlay a {
            padding: 14px 20px;
            border-radius: var(--radius-md);
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text-primary);
            transition: all var(--transition-fast);
            display: block;
        }

        .mobile-nav-overlay a:hover,
        .mobile-nav-overlay a.active {
            background: var(--bg-soft);
            color: var(--primary);
        }

        .mobile-nav-overlay .mobile-search {
            margin-top: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--bg-soft);
            border-radius: var(--radius-full);
            padding: 12px 18px;
            border: 2px solid var(--border-color);
        }

        .mobile-nav-overlay .mobile-search input {
            border: none;
            background: transparent;
            font-size: 0.95rem;
            width: 100%;
            color: var(--text-primary);
        }

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

/* roulang page: article */
:root {
            --primary: #ff4d2e;
            --primary-dark: #e63e1f;
            --secondary: #6c5ce7;
            --accent: #00cec9;
            --bg: #fafbff;
            --surface: #ffffff;
            --text: #1a1a2e;
            --text-light: #555;
            --border: #e8ecf1;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow-sm: 0 4px 12px rgba(0,0,0,0.04);
            --shadow: 0 8px 30px rgba(0,0,0,0.08);
            --transition: 0.2s ease;
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        img { max-width: 100%; height: auto; vertical-align: middle; }
        a { color: inherit; text-decoration: none; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

        /* 吸顶导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255,255,255,0.85);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            padding: 0 24px;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }
        .logo-link {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 1.2rem;
            color: var(--text);
            transition: var(--transition);
        }
        .logo-icon { width: 34px; height: 34px; background: var(--primary); border-radius: 10px; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 1rem; }
        .nav-links { display: flex; gap: 8px; }
        .nav-links a {
            padding: 6px 18px;
            border-radius: 30px;
            font-weight: 500;
            color: var(--text-light);
            transition: all var(--transition);
            font-size: 0.95rem;
        }
        .nav-links a:hover { background: rgba(0,0,0,0.04); color: var(--text); }
        .nav-links a.active { background: var(--primary); color: #fff; }

        /* 移动端汉堡菜单 */
        .menu-toggle { display: none; background: none; border: none; font-size: 1.8rem; cursor: pointer; color: var(--text); }
        @media (max-width: 768px) {
            .nav-links { position: fixed; top: 68px; left: 0; right: 0; background: #fff; flex-direction: column; padding: 16px 24px; gap: 4px; box-shadow: var(--shadow); display: none; }
            .nav-links.open { display: flex; }
            .menu-toggle { display: block; }
        }

        /* 文章页 hero */
        .article-hero {
            padding: 40px 0 20px;
            background: var(--surface);
            border-bottom: 1px solid var(--border);
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            margin-bottom: 16px;
            color: var(--text-light);
            font-size: 0.9rem;
        }
        .article-category {
            background: var(--secondary);
            color: #fff;
            padding: 4px 14px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.8rem;
        }
        .article-title {
            font-size: 2.4rem;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
            color: var(--text);
        }
        .article-cover {
            border-radius: var(--radius);
            overflow: hidden;
            margin: 24px 0;
            box-shadow: var(--shadow);
        }
        .article-cover img { width: 100%; display: block; }

        .article-content {
            background: var(--surface);
            border-radius: var(--radius);
            padding: 32px;
            box-shadow: var(--shadow-sm);
            margin-top: 24px;
        }
        .article-content h2 { font-size: 1.6rem; margin: 1.2em 0 0.6em; color: var(--text); }
        .article-content p { margin-bottom: 1.2em; color: var(--text-light); }
        .article-content ul { margin-left: 1.5em; margin-bottom: 1.2em; }
        .article-content li { margin-bottom: 0.5em; }

        /* 无数据状态 */
        .not-found {
            text-align: center;
            padding: 80px 24px;
            background: var(--surface);
            border-radius: var(--radius);
            margin: 40px 0;
        }
        .not-found h2 { font-size: 2rem; color: var(--text); margin-bottom: 16px; }
        .not-found p { color: var(--text-light); margin-bottom: 24px; }
        .btn-primary {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            padding: 12px 32px;
            border-radius: 40px;
            font-weight: 600;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(255,77,46,0.3); }

        /* 页脚 */
        .site-footer {
            background: #1a1a2e;
            color: #ccc;
            padding: 60px 0 30px;
            margin-top: 80px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo-link { margin-bottom: 16px; color: #fff; }
        .footer-brand p { line-height: 1.7; opacity: 0.8; }
        .footer-col h4 { color: #fff; margin-bottom: 16px; font-size: 1.1rem; }
        .footer-col ul { list-style: none; }
        .footer-col li { margin-bottom: 10px; }
        .footer-col a { color: #aaa; transition: var(--transition); }
        .footer-col a:hover { color: var(--primary); }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 24px;
            text-align: center;
            font-size: 0.9rem;
            opacity: 0.7;
        }
        @media (max-width: 768px) {
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .article-title { font-size: 1.8rem; }
            .article-content { padding: 20px; }
        }
        @media (max-width: 520px) {
            .footer-grid { grid-template-columns: 1fr; }
            .article-hero { padding: 24px 0 0; }
        }

/* roulang page: category1 */
:root {
            --primary: #E8403C;
            --primary-dark: #C62828;
            --primary-light: #FF6B5B;
            --accent: #FFB800;
            --accent-light: #FFD54F;
            --bg: #F8F9FB;
            --bg-alt: #EEF1F5;
            --bg-dark: #1A1D2A;
            --surface: #FFFFFF;
            --text: #1A1D2A;
            --text-secondary: #5C6170;
            --text-muted: #8B8F9A;
            --text-light: #B0B4BE;
            --border: #E2E5EB;
            --border-light: #EEF0F4;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 50px;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
            --shadow: 0 2px 12px rgba(0,0,0,0.08);
            --shadow-md: 0 6px 24px rgba(0,0,0,0.10);
            --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
            --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);
            --transition: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
            --font-xs: 0.75rem;
            --font-sm: 0.85rem;
            --font-base: 0.95rem;
            --font-md: 1.05rem;
            --font-lg: 1.25rem;
            --font-xl: 1.5rem;
            --font-2xl: 1.85rem;
            --font-3xl: 2.25rem;
            --max-width: 1240px;
            --header-height: 62px;
        }

        *, *::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: 1.65;
            color: var(--text);
            background-color: var(--bg);
            min-height: 100vh;
            padding-top: var(--header-height);
        }

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

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

        button, input, select {
            font-family: inherit;
            font-size: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            outline: none;
        }

        ul, ol {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

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

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
        }

        .logo-link {
            display: flex;
            align-items: center;
            gap: 9px;
            font-weight: 700;
            font-size: var(--font-md);
            color: var(--text);
            white-space: nowrap;
            flex-shrink: 0;
            transition: opacity var(--transition);
        }

        .logo-link:hover {
            opacity: 0.82;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            font-size: 1.05rem;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            border-radius: var(--radius-sm);
            color: #fff;
            flex-shrink: 0;
        }

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

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 7px 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: rgba(232, 64, 60, 0.06);
        }

        .nav-links a.active {
            color: #fff;
            background: var(--primary);
            font-weight: 600;
            box-shadow: 0 3px 12px rgba(232, 64, 60, 0.3);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .btn-header {
            padding: 8px 20px;
            border-radius: var(--radius-full);
            font-size: var(--font-sm);
            font-weight: 600;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            color: #fff;
            transition: all var(--transition);
            box-shadow: 0 3px 14px rgba(232, 64, 60, 0.28);
            white-space: nowrap;
        }

        .btn-header:hover {
            box-shadow: 0 6px 22px rgba(232, 64, 60, 0.38);
            transform: translateY(-1px);
        }

        .mobile-menu-trigger {
            display: none;
            background: none;
            border: none;
            font-size: 1.4rem;
            color: var(--text);
            padding: 6px;
            cursor: pointer;
        }

        /* ========== CATEGORY BANNER ========== */
        .category-banner {
            position: relative;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            min-height: 260px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26,29,42,0.88) 0%, rgba(26,29,42,0.65) 50%, rgba(26,29,42,0.78) 100%);
            z-index: 1;
        }

        .category-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60px;
            background: linear-gradient(to top, var(--bg) 0%, transparent 100%);
            z-index: 2;
        }

        .banner-content {
            position: relative;
            z-index: 3;
            padding: 50px 0 30px;
            width: 100%;
        }

        .banner-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: var(--font-sm);
            color: rgba(255,255,255,0.7);
            margin-bottom: 14px;
            flex-wrap: wrap;
        }

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

        .banner-breadcrumb a:hover {
            color: #fff;
        }

        .banner-breadcrumb .sep {
            font-size: 0.6rem;
            opacity: 0.5;
        }

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

        .banner-title-row {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .banner-title {
            font-size: var(--font-3xl);
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            letter-spacing: -0.01em;
        }

        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: var(--radius-full);
            font-size: var(--font-sm);
            font-weight: 600;
            background: var(--accent);
            color: #1A1D2A;
        }

        .banner-desc {
            font-size: var(--font-md);
            color: rgba(255,255,255,0.78);
            margin-top: 10px;
            max-width: 600px;
            line-height: 1.6;
        }

        .banner-stats {
            display: flex;
            gap: 28px;
            margin-top: 18px;
            flex-wrap: wrap;
        }

        .banner-stat {
            display: flex;
            align-items: baseline;
            gap: 6px;
        }

        .banner-stat .stat-num {
            font-size: var(--font-2xl);
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
        }

        .banner-stat .stat-label {
            font-size: var(--font-xs);
            color: rgba(255,255,255,0.65);
        }

        /* ========== FILTER BAR ========== */
        .filter-section {
            background: var(--surface);
            border-bottom: 1px solid var(--border-light);
            position: sticky;
            top: var(--header-height);
            z-index: 90;
            padding: 14px 0;
        }

        .filter-row {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }

        .filter-tag {
            display: inline-flex;
            align-items: center;
            padding: 7px 16px;
            border-radius: var(--radius-full);
            font-size: var(--font-sm);
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg-alt);
            cursor: pointer;
            transition: all var(--transition);
            border: 1.5px solid transparent;
            white-space: nowrap;
        }

        .filter-tag:hover {
            color: var(--primary);
            background: rgba(232, 64, 60, 0.06);
            border-color: rgba(232, 64, 60, 0.2);
        }

        .filter-tag.active {
            color: #fff;
            background: var(--primary);
            border-color: var(--primary);
            font-weight: 600;
        }

        .filter-sort {
            margin-left: auto;
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: var(--font-sm);
            color: var(--text-secondary);
            flex-shrink: 0;
        }

        .filter-sort select {
            padding: 7px 32px 7px 14px;
            border-radius: var(--radius-full);
            border: 1.5px solid var(--border);
            font-size: var(--font-sm);
            color: var(--text);
            background: var(--surface);
            cursor: pointer;
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%235C6170' stroke-width='2.5'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 12px center;
            transition: border-color var(--transition);
        }

        .filter-sort select:focus {
            outline: none;
            border-color: var(--primary);
        }

        /* ========== MAIN LAYOUT ========== */
        .category-main {
            padding: 36px 0 60px;
        }

        .category-layout {
            display: grid;
            grid-template-columns: 1fr 340px;
            gap: 32px;
            align-items: start;
        }

        /* ========== GAME GRID ========== */
        .game-grid-section {
            min-width: 0;
        }

        .section-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 22px;
            flex-wrap: wrap;
            gap: 12px;
        }

        .section-title {
            font-size: var(--font-xl);
            font-weight: 700;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .section-title .icon-bar {
            width: 4px;
            height: 22px;
            border-radius: 2px;
            background: var(--primary);
        }

        .section-count {
            font-size: var(--font-sm);
            color: var(--text-muted);
            font-weight: 400;
        }

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

        .game-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            cursor: pointer;
            border: 1px solid var(--border-light);
            position: relative;
        }

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

        .game-card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: var(--bg-alt);
        }

        .game-card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .game-card:hover .game-card-img-wrap img {
            transform: scale(1.06);
        }

        .game-card-rank {
            position: absolute;
            top: 12px;
            left: 12px;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: var(--font-xs);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 2;
            box-shadow: 0 3px 10px rgba(232, 64, 60, 0.4);
        }

        .game-card-rank.top3 {
            background: var(--accent);
            color: #1A1D2A;
            box-shadow: 0 3px 10px rgba(255, 184, 0, 0.45);
            font-size: 0.7rem;
        }

        .game-card-tag {
            position: absolute;
            top: 12px;
            right: 12px;
            padding: 4px 10px;
            border-radius: var(--radius-full);
            font-size: 0.7rem;
            font-weight: 600;
            background: rgba(0,0,0,0.6);
            color: #fff;
            z-index: 2;
            backdrop-filter: blur(4px);
        }

        .game-card-tag.hot {
            background: var(--primary);
            color: #fff;
        }

        .game-card-tag.new {
            background: #10B981;
            color: #fff;
        }

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

        .game-card-title {
            font-size: var(--font-md);
            font-weight: 700;
            color: var(--text);
            line-height: 1.3;
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .game-card-desc {
            font-size: var(--font-xs);
            color: var(--text-muted);
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }

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

        .game-card-rating {
            display: flex;
            align-items: center;
            gap: 4px;
            color: var(--accent);
            font-weight: 600;
        }

        .game-card-rating i {
            font-size: 0.65rem;
        }

        .game-card-players {
            color: var(--text-muted);
        }

        /* ========== SIDEBAR ========== */
        .sidebar {
            position: sticky;
            top: calc(var(--header-height) + 56px);
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .sidebar-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 22px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
        }

        .sidebar-card h3 {
            font-size: var(--font-lg);
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-card h3 .icon-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
        }

        .rank-list-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-light);
            transition: all var(--transition);
            cursor: pointer;
        }

        .rank-list-item:last-child {
            border-bottom: none;
        }

        .rank-list-item:hover {
            padding-left: 6px;
        }

        .rank-num {
            width: 26px;
            height: 26px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: var(--font-xs);
            flex-shrink: 0;
            background: var(--bg-alt);
            color: var(--text-muted);
        }

        .rank-list-item:nth-child(1) .rank-num,
        .rank-list-item:nth-child(2) .rank-num,
        .rank-list-item:nth-child(3) .rank-num {
            background: var(--accent);
            color: #1A1D2A;
        }

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

        .rank-name {
            font-weight: 600;
            font-size: var(--font-sm);
            color: var(--text);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .rank-type {
            font-size: var(--font-xs);
            color: var(--text-muted);
        }

        .rank-heat {
            font-size: var(--font-xs);
            color: var(--primary);
            font-weight: 600;
            flex-shrink: 0;
        }

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

        .tag-item {
            padding: 6px 14px;
            border-radius: var(--radius-full);
            font-size: var(--font-xs);
            font-weight: 500;
            background: var(--bg-alt);
            color: var(--text-secondary);
            cursor: pointer;
            transition: all var(--transition);
            border: 1px solid transparent;
        }

        .tag-item:hover {
            color: var(--primary);
            background: rgba(232, 64, 60, 0.06);
            border-color: rgba(232, 64, 60, 0.22);
        }

        .tag-item.highlight {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }

        /* ========== CTA BANNER ========== */
        .cta-banner-inline {
            background: linear-gradient(135deg, var(--bg-dark) 0%, #2A1F3D 50%, var(--bg-dark) 100%);
            border-radius: var(--radius-lg);
            padding: 32px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            position: relative;
            overflow: hidden;
        }

        .cta-banner-inline::before {
            content: '';
            position: absolute;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(232,64,60,0.25) 0%, transparent 70%);
            top: -60px;
            right: -40px;
            pointer-events: none;
        }

        .cta-text-wrap {
            position: relative;
            z-index: 1;
        }

        .cta-text-wrap h3 {
            font-size: var(--font-xl);
            font-weight: 700;
            color: #fff;
            margin-bottom: 4px;
        }

        .cta-text-wrap p {
            font-size: var(--font-sm);
            color: rgba(255,255,255,0.7);
        }

        .btn-cta-glow {
            position: relative;
            z-index: 1;
            padding: 12px 28px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: var(--font-sm);
            background: var(--accent);
            color: #1A1D2A;
            box-shadow: 0 6px 24px rgba(255, 184, 0, 0.45);
            transition: all var(--transition);
            white-space: nowrap;
        }

        .btn-cta-glow:hover {
            box-shadow: 0 10px 34px rgba(255, 184, 0, 0.6);
            transform: translateY(-2px);
        }

        /* ========== FEATURED SECTION ========== */
        .featured-mini-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .featured-mini-card {
            background: var(--surface);
            border-radius: var(--radius);
            padding: 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            text-align: center;
            transition: all var(--transition);
            cursor: pointer;
        }

        .featured-mini-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .featured-mini-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 10px;
        }

        .featured-mini-icon.type-action {
            background: #FFF0EE;
            color: var(--primary);
        }

        .featured-mini-icon.type-rpg {
            background: #EEF2FF;
            color: #4F46E5;
        }

        .featured-mini-icon.type-strategy {
            background: #ECFDF5;
            color: #10B981;
        }

        .featured-mini-card h4 {
            font-size: var(--font-sm);
            font-weight: 700;
            color: var(--text);
            margin-bottom: 4px;
        }

        .featured-mini-card p {
            font-size: var(--font-xs);
            color: var(--text-muted);
            line-height: 1.4;
        }

        /* ========== PAGINATION ========== */
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            margin-top: 36px;
            flex-wrap: wrap;
        }

        .page-btn {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 500;
            font-size: var(--font-sm);
            color: var(--text-secondary);
            background: var(--surface);
            border: 1.5px solid var(--border);
            cursor: pointer;
            transition: all var(--transition);
        }

        .page-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

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

        .page-btn.arrow {
            font-size: 0.8rem;
        }

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

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 32px;
        }

        .footer-brand .logo-link {
            color: #fff;
            margin-bottom: 14px;
            display: inline-flex;
        }

        .footer-brand p {
            font-size: var(--font-sm);
            line-height: 1.7;
            opacity: 0.7;
            margin-top: 10px;
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: var(--font-sm);
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-col ul li a {
            font-size: var(--font-sm);
            color: rgba(255,255,255,0.6);
            transition: all var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
            text-align: center;
            font-size: var(--font-xs);
            color: rgba(255,255,255,0.45);
        }

        .footer-bottom span {
            color: rgba(255,255,255,0.7);
            font-weight: 500;
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .category-layout {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .game-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .featured-mini-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 56px;
            }
            .header-inner {
                gap: 12px;
                padding: 0 16px;
            }
            .nav-links {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--surface);
                flex-direction: column;
                align-items: stretch;
                padding: 12px 16px;
                gap: 4px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-md);
                display: none;
                z-index: 999;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                padding: 10px 16px;
                border-radius: var(--radius-sm);
                font-size: var(--font-base);
            }
            .mobile-menu-trigger {
                display: block;
            }
            .btn-header {
                padding: 7px 14px;
                font-size: var(--font-xs);
            }
            .category-banner {
                min-height: 200px;
            }
            .banner-title {
                font-size: var(--font-2xl);
            }
            .banner-stats {
                gap: 16px;
            }
            .filter-row {
                gap: 6px;
            }
            .filter-tag {
                padding: 5px 12px;
                font-size: var(--font-xs);
            }
            .filter-sort {
                margin-left: 0;
                margin-top: 4px;
            }
            .game-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .game-card-body {
                padding: 12px 14px 14px;
            }
            .game-card-title {
                font-size: var(--font-sm);
            }
            .featured-mini-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .sidebar {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .cta-banner-inline {
                flex-direction: column;
                text-align: center;
                padding: 24px 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-brand p {
                max-width: 100%;
            }
            .category-main {
                padding: 24px 0 40px;
            }
            .banner-content {
                padding: 36px 0 20px;
            }
        }

        @media (max-width: 520px) {
            .game-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .game-card-img-wrap {
                aspect-ratio: 16 / 9;
            }
            .banner-title {
                font-size: var(--font-xl);
            }
            .banner-stats {
                gap: 12px;
            }
            .banner-stat .stat-num {
                font-size: var(--font-lg);
            }
            .featured-mini-grid {
                grid-template-columns: 1fr;
            }
            .pagination {
                gap: 4px;
            }
            .page-btn {
                width: 34px;
                height: 34px;
                font-size: var(--font-xs);
            }
            .section-title {
                font-size: var(--font-lg);
            }
            .container {
                padding: 0 14px;
            }
        }