/* roulang page: index */
:root {
            --sidebar-width: 16rem;
            --header-height: 4rem;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            font-family: 'Inter', 'Noto Sans SC', system-ui, sans-serif;
            background: #f8f9fc;
            color: #1a1a2e;
            line-height: 1.6;
            min-height: 100vh;
        }
        /* Sidebar base */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            z-index: 50;
            background: linear-gradient(180deg, #0a0a1a 0%, #12122a 50%, #1a1a3e 100%);
            border-right: 1px solid rgba(255, 255, 255, 0.05);
            overflow-y: auto;
            transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .sidebar::-webkit-scrollbar {
            width: 4px;
        }
        .sidebar::-webkit-scrollbar-track {
            background: transparent;
        }
        .sidebar::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.15);
            border-radius: 4px;
        }
        .sidebar-brand {
            padding: 1.5rem 1.25rem 1.25rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .sidebar-brand .logo-icon {
            width: 2.5rem;
            height: 2.5rem;
            background: linear-gradient(135deg, #ff6b35, #f9a825);
            border-radius: 0.75rem;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            font-weight: 800;
            color: #fff;
            flex-shrink: 0;
        }
        .sidebar-brand .logo-text {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.02em;
            line-height: 1.3;
        }
        .sidebar-brand .logo-sub {
            font-size: 0.7rem;
            color: rgba(255, 255, 255, 0.5);
            letter-spacing: 0.1em;
            margin-top: 0.1rem;
        }
        .sidebar-nav {
            padding: 1rem 0.75rem;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.7rem 1rem;
            border-radius: 0.75rem;
            color: rgba(255, 255, 255, 0.65);
            text-decoration: none;
            font-size: 0.9rem;
            font-weight: 500;
            transition: all 0.2s ease;
            margin-bottom: 0.2rem;
        }
        .sidebar-nav a i {
            width: 1.25rem;
            text-align: center;
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.4);
            transition: color 0.2s;
        }
        .sidebar-nav a:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }
        .sidebar-nav a:hover i {
            color: #ff8a5c;
        }
        .sidebar-nav a.active {
            background: linear-gradient(135deg, rgba(255, 107, 53, 0.2), rgba(249, 168, 37, 0.1));
            color: #fff;
            border: 1px solid rgba(255, 107, 53, 0.15);
        }
        .sidebar-nav a.active i {
            color: #ff6b35;
        }
        .sidebar-nav .nav-label {
            font-size: 0.65rem;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: rgba(255, 255, 255, 0.25);
            padding: 1rem 1rem 0.4rem;
            font-weight: 600;
        }
        .sidebar-footer {
            padding: 1.25rem;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 0.7rem;
            color: rgba(255, 255, 255, 0.3);
            text-align: center;
        }
        /* Main content area */
        .main-wrapper {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
        }
        .main-content {
            padding: 0;
        }
        /* Mobile top bar */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-height);
            background: #0a0a1a;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            z-index: 45;
            padding: 0 1rem;
            align-items: center;
            justify-content: space-between;
        }
        .mobile-topbar .logo-text {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
        }
        .mobile-topbar .menu-btn {
            background: none;
            border: none;
            color: #fff;
            font-size: 1.5rem;
            padding: 0.25rem;
            cursor: pointer;
            border-radius: 0.5rem;
            width: 2.5rem;
            height: 2.5rem;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background 0.2s;
        }
        .mobile-topbar .menu-btn:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        /* Overlay for mobile sidebar */
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 49;
            backdrop-filter: blur(2px);
        }
        /* Hero */
        .hero-section {
            background: linear-gradient(135deg, #0a0a1a 0%, #1a1a3e 50%, #2a1a3e 100%);
            position: relative;
            overflow: hidden;
            padding: 5rem 2rem 6rem;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 60%;
            height: 200%;
            background: radial-gradient(ellipse, rgba(255, 107, 53, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 50%;
            height: 150%;
            background: radial-gradient(ellipse, rgba(249, 168, 37, 0.05) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero-section .hero-content {
            position: relative;
            z-index: 1;
            max-width: 800px;
        }
        .hero-section .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 107, 53, 0.15);
            border: 1px solid rgba(255, 107, 53, 0.2);
            border-radius: 9999px;
            padding: 0.35rem 1rem 0.35rem 0.5rem;
            font-size: 0.8rem;
            color: #ff8a5c;
            font-weight: 500;
        }
        .hero-section .hero-badge .dot {
            width: 0.5rem;
            height: 0.5rem;
            border-radius: 50%;
            background: #ff6b35;
            animation: pulse-dot 2s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(0.8);
            }
        }
        .hero-section h1 {
            font-size: 3.2rem;
            font-weight: 800;
            line-height: 1.2;
            color: #fff;
            margin: 1.5rem 0 1rem;
            letter-spacing: -0.02em;
        }
        .hero-section h1 .highlight {
            background: linear-gradient(135deg, #ff6b35, #f9a825);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-section p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 600px;
            margin-bottom: 2rem;
            line-height: 1.7;
        }
        .hero-section .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, #ff6b35, #f9a825);
            color: #fff;
            font-weight: 600;
            padding: 0.8rem 2rem;
            border-radius: 9999px;
            text-decoration: none;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
            font-size: 0.95rem;
            box-shadow: 0 4px 20px rgba(255, 107, 53, 0.3);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(255, 107, 53, 0.4);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-weight: 500;
            padding: 0.8rem 2rem;
            border-radius: 9999px;
            text-decoration: none;
            transition: all 0.3s ease;
            border: 1px solid rgba(255, 255, 255, 0.15);
            font-size: 0.95rem;
            backdrop-filter: blur(4px);
        }
        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: rgba(255, 255, 255, 0.25);
            transform: translateY(-2px);
        }
        /* Section styling */
        .section-padding {
            padding: 4.5rem 2rem;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            color: #0a0a1a;
            margin-bottom: 0.5rem;
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            font-size: 1rem;
            color: #6b7280;
            max-width: 560px;
            line-height: 1.7;
        }
        .section-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: #ff6b35;
            background: rgba(255, 107, 53, 0.1);
            padding: 0.3rem 1rem;
            border-radius: 9999px;
            margin-bottom: 0.75rem;
        }
        /* Cards */
        .feature-card {
            background: #fff;
            border-radius: 1.25rem;
            padding: 2rem 1.75rem;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04), 0 4px 12px rgba(0, 0, 0, 0.03);
            border: 1px solid rgba(0, 0, 0, 0.04);
            transition: all 0.3s ease;
            height: 100%;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.07);
            border-color: rgba(255, 107, 53, 0.1);
        }
        .feature-card .icon-wrap {
            width: 3.5rem;
            height: 3.5rem;
            border-radius: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 1.25rem;
            background: linear-gradient(135deg, rgba(255, 107, 53, 0.1), rgba(249, 168, 37, 0.05));
            color: #ff6b35;
        }
        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: #0a0a1a;
            margin-bottom: 0.5rem;
        }
        .feature-card p {
            font-size: 0.9rem;
            color: #6b7280;
            line-height: 1.7;
            margin: 0;
        }
        .category-card {
            background: #fff;
            border-radius: 1.25rem;
            overflow: hidden;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04), 0 4px 12px rgba(0, 0, 0, 0.03);
            border: 1px solid rgba(0, 0, 0, 0.04);
            transition: all 0.3s ease;
            height: 100%;
            text-decoration: none;
            display: block;
            position: relative;
        }
        .category-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
            border-color: rgba(255, 107, 53, 0.15);
        }
        .category-card .cat-bg {
            height: 8rem;
            background: linear-gradient(135deg, #1a1a3e, #2a2a5e);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 3rem;
            color: rgba(255, 255, 255, 0.15);
            position: relative;
        }
        .category-card .cat-bg .cat-icon {
            font-size: 2.5rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .category-card .cat-body {
            padding: 1.5rem 1.5rem 1.75rem;
        }
        .category-card .cat-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: #0a0a1a;
            margin-bottom: 0.35rem;
        }
        .category-card .cat-body p {
            font-size: 0.85rem;
            color: #6b7280;
            margin: 0;
            line-height: 1.6;
        }
        .category-card .cat-arrow {
            position: absolute;
            bottom: 1.25rem;
            right: 1.25rem;
            width: 2rem;
            height: 2rem;
            border-radius: 50%;
            background: rgba(255, 107, 53, 0.1);
            color: #ff6b35;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            transition: all 0.3s ease;
        }
        .category-card:hover .cat-arrow {
            background: #ff6b35;
            color: #fff;
            transform: translateX(2px);
        }
        /* News list */
        .news-item {
            display: flex;
            align-items: flex-start;
            gap: 1.25rem;
            padding: 1.25rem 1.5rem;
            background: #fff;
            border-radius: 1rem;
            border: 1px solid rgba(0, 0, 0, 0.04);
            transition: all 0.2s ease;
            text-decoration: none;
        }
        .news-item:hover {
            border-color: rgba(255, 107, 53, 0.1);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
            transform: translateX(2px);
        }
        .news-item .news-date {
            font-size: 0.75rem;
            color: #9ca3af;
            white-space: nowrap;
            flex-shrink: 0;
            min-width: 4rem;
            padding-top: 0.15rem;
        }
        .news-item .news-info {
            flex: 1;
            min-width: 0;
        }
        .news-item .news-info .news-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: #0a0a1a;
            margin-bottom: 0.3rem;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-item .news-info .news-desc {
            font-size: 0.82rem;
            color: #6b7280;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-item .news-cat {
            font-size: 0.7rem;
            font-weight: 500;
            padding: 0.2rem 0.7rem;
            border-radius: 9999px;
            background: rgba(255, 107, 53, 0.08);
            color: #ff6b35;
            flex-shrink: 0;
            align-self: center;
        }
        .news-empty {
            text-align: center;
            padding: 3rem 2rem;
            color: #9ca3af;
            font-size: 0.95rem;
            background: #fff;
            border-radius: 1.25rem;
            border: 1px dashed rgba(0, 0, 0, 0.08);
        }
        /* Stats */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }
        .stat-item {
            text-align: center;
            padding: 2rem 1rem;
            background: #fff;
            border-radius: 1.25rem;
            border: 1px solid rgba(0, 0, 0, 0.04);
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
            transition: all 0.3s ease;
        }
        .stat-item:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
        }
        .stat-item .stat-number {
            font-size: 2.5rem;
            font-weight: 800;
            background: linear-gradient(135deg, #0a0a1a, #3a3a7e);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }
        .stat-item .stat-label {
            font-size: 0.85rem;
            color: #6b7280;
            margin-top: 0.35rem;
            font-weight: 500;
        }
        /* Game cards */
        .game-card {
            background: #fff;
            border-radius: 1.25rem;
            overflow: hidden;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04), 0 4px 12px rgba(0, 0, 0, 0.03);
            border: 1px solid rgba(0, 0, 0, 0.04);
            transition: all 0.3s ease;
            height: 100%;
        }
        .game-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
        }
        .game-card .game-thumb {
            height: 10rem;
            background: linear-gradient(135deg, #1a1a3e, #2a2a5e);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 3rem;
            color: rgba(255, 255, 255, 0.1);
            position: relative;
        }
        .game-card .game-thumb .play-icon {
            width: 3.5rem;
            height: 3.5rem;
            border-radius: 50%;
            background: rgba(255, 107, 53, 0.2);
            border: 2px solid rgba(255, 107, 53, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
            transition: all 0.3s ease;
            backdrop-filter: blur(4px);
        }
        .game-card:hover .play-icon {
            background: #ff6b35;
            border-color: #ff6b35;
            transform: scale(1.05);
        }
        .game-card .game-body {
            padding: 1.25rem 1.5rem 1.5rem;
        }
        .game-card .game-body h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: #0a0a1a;
            margin-bottom: 0.25rem;
        }
        .game-card .game-body .game-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem;
            margin-top: 0.5rem;
        }
        .game-card .game-body .game-tags span {
            font-size: 0.7rem;
            padding: 0.2rem 0.6rem;
            border-radius: 9999px;
            background: rgba(0, 0, 0, 0.04);
            color: #6b7280;
        }
        /* FAQ */
        .faq-item {
            background: #fff;
            border-radius: 1rem;
            border: 1px solid rgba(0, 0, 0, 0.04);
            padding: 1.25rem 1.5rem;
            margin-bottom: 0.75rem;
            transition: all 0.2s ease;
            cursor: pointer;
        }
        .faq-item:hover {
            border-color: rgba(255, 107, 53, 0.1);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
        }
        .faq-item .faq-q {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            font-weight: 600;
            color: #0a0a1a;
            font-size: 0.95rem;
        }
        .faq-item .faq-q i {
            color: #ff6b35;
            transition: transform 0.3s ease;
            font-size: 0.85rem;
            flex-shrink: 0;
        }
        .faq-item.open .faq-q i {
            transform: rotate(180deg);
        }
        .faq-item .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding-top: 0;
            color: #6b7280;
            font-size: 0.9rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-a {
            max-height: 300px;
            padding-top: 1rem;
        }
        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, #0a0a1a 0%, #1a1a3e 50%, #2a1a3e 100%);
            position: relative;
            overflow: hidden;
            padding: 4.5rem 2rem;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -20%;
            width: 70%;
            height: 200%;
            background: radial-gradient(ellipse, rgba(255, 107, 53, 0.06) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-section .cta-content {
            position: relative;
            z-index: 1;
            max-width: 640px;
            margin: 0 auto;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 0.75rem;
        }
        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 2rem;
        }
        /* Footer */
        .site-footer {
            background: #0a0a1a;
            color: rgba(255, 255, 255, 0.6);
            padding: 3rem 2rem 1.5rem;
            font-size: 0.85rem;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2rem;
            max-width: 1200px;
            margin: 0 auto;
        }
        .site-footer .footer-brand .logo-text {
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
        }
        .site-footer .footer-brand p {
            margin-top: 0.75rem;
            max-width: 300px;
            line-height: 1.7;
        }
        .site-footer h5 {
            font-size: 0.85rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 1rem;
        }
        .site-footer a {
            color: rgba(255, 255, 255, 0.5);
            text-decoration: none;
            display: block;
            padding: 0.3rem 0;
            transition: color 0.2s;
            font-size: 0.85rem;
        }
        .site-footer a:hover {
            color: #ff8a5c;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 1.5rem;
            margin-top: 2.5rem;
            text-align: center;
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.35);
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .hero-section h1 {
                font-size: 2.5rem;
            }
        }
        @media (max-width: 768px) {
            :root {
                --sidebar-width: 0rem;
            }
            .sidebar {
                transform: translateX(-100%);
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .sidebar-overlay.open {
                display: block;
            }
            .mobile-topbar {
                display: flex;
            }
            .main-wrapper {
                margin-left: 0;
                padding-top: var(--header-height);
            }
            .hero-section {
                padding: 3rem 1.25rem 4rem;
            }
            .hero-section h1 {
                font-size: 2rem;
            }
            .hero-section p {
                font-size: 1rem;
            }
            .section-padding {
                padding: 3rem 1.25rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }
            .stat-item .stat-number {
                font-size: 2rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .news-item {
                flex-wrap: wrap;
                gap: 0.75rem;
                padding: 1rem 1.25rem;
            }
            .news-item .news-date {
                min-width: auto;
                font-size: 0.7rem;
            }
            .news-item .news-cat {
                font-size: 0.65rem;
                padding: 0.15rem 0.5rem;
            }
        }
        @media (max-width: 520px) {
            .hero-section h1 {
                font-size: 1.6rem;
            }
            .hero-section .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-section .hero-actions .btn-primary,
            .hero-section .hero-actions .btn-secondary {
                width: 100%;
                justify-content: center;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 0.75rem;
            }
            .stat-item {
                padding: 1.25rem 0.75rem;
            }
            .stat-item .stat-number {
                font-size: 1.6rem;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .feature-card {
                padding: 1.5rem 1.25rem;
            }
            .category-card .cat-body {
                padding: 1.25rem 1.25rem 1.5rem;
            }
            .game-card .game-body {
                padding: 1rem 1.25rem 1.25rem;
            }
            .faq-item {
                padding: 1rem 1.25rem;
            }
            .cta-section {
                padding: 3rem 1.25rem;
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
            .site-footer {
                padding: 2rem 1.25rem 1rem;
            }
        }
        /* Scrollbar for main */
        .main-wrapper::-webkit-scrollbar {
            width: 6px;
        }
        .main-wrapper::-webkit-scrollbar-track {
            background: transparent;
        }
        .main-wrapper::-webkit-scrollbar-thumb {
            background: #d1d5db;
            border-radius: 4px;
        }
        /* Focus visible */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid #ff6b35;
            outline-offset: 2px;
            border-radius: 4px;
        }
        /* Animations */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .animate-fade-in-up {
            animation: fadeInUp 0.6s ease forwards;
        }
        .delay-100 {
            animation-delay: 0.1s;
        }
        .delay-200 {
            animation-delay: 0.2s;
        }
        .delay-300 {
            animation-delay: 0.3s;
        }
        .delay-400 {
            animation-delay: 0.4s;
        }

/* roulang page: article */
*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
            background: #f0f2f5;
            color: #1a1a2e;
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #e74c3c;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .sidebar {
            width: 260px;
            min-height: 100vh;
            background: #0f0f1e;
            color: #fff;
            display: flex;
            flex-direction: column;
            position: fixed;
            left: 0;
            top: 0;
            z-index: 1000;
            transition: transform 0.3s ease;
        }
        .sidebar-brand {
            padding: 28px 24px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .logo-icon {
            width: 44px;
            height: 44px;
            background: linear-gradient(135deg, #e74c3c, #f39c12);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            flex-shrink: 0;
        }
        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 0.5px;
        }
        .logo-sub {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.5);
            margin-top: 1px;
        }
        .sidebar-nav {
            flex: 1;
            padding: 16px 12px;
            overflow-y: auto;
        }
        .nav-label {
            font-size: 11px;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: rgba(255, 255, 255, 0.3);
            padding: 8px 12px 6px;
            font-weight: 600;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: 10px;
            color: rgba(255, 255, 255, 0.65);
            font-size: 15px;
            font-weight: 500;
            transition: all 0.2s;
            margin-bottom: 2px;
        }
        .sidebar-nav a i {
            width: 20px;
            text-align: center;
            font-size: 16px;
        }
        .sidebar-nav a:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }
        .sidebar-nav a.active {
            background: rgba(231, 76, 60, 0.2);
            color: #e74c3c;
            font-weight: 600;
        }
        .sidebar-footer {
            padding: 16px 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 12px;
            color: rgba(255, 255, 255, 0.3);
            text-align: center;
        }
        .main-wrapper {
            margin-left: 260px;
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        .mobile-topbar {
            display: none;
            background: #0f0f1e;
            padding: 12px 20px;
            align-items: center;
            justify-content: space-between;
            position: sticky;
            top: 0;
            z-index: 999;
        }
        .mobile-topbar .logo-text {
            font-size: 16px;
        }
        .hamburger {
            background: none;
            border: none;
            color: #fff;
            font-size: 24px;
            cursor: pointer;
            padding: 4px 8px;
        }
        .overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 999;
        }
        .container-custom {
            max-width: 1120px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .article-header {
            padding: 40px 0 24px;
        }
        .article-header .category-badge {
            display: inline-block;
            background: rgba(231, 76, 60, 0.12);
            color: #e74c3c;
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 12px;
        }
        .article-header h1 {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.3;
            color: #1a1a2e;
            margin-bottom: 12px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 24px;
            color: #6c757d;
            font-size: 14px;
        }
        .article-meta i {
            margin-right: 6px;
        }
        .article-body {
            background: #fff;
            border-radius: 16px;
            padding: 40px 48px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
            margin-bottom: 32px;
        }
        .article-body p {
            margin-bottom: 1.2em;
            font-size: 16px;
            color: #2d3436;
        }
        .article-body h2 {
            font-size: 24px;
            font-weight: 700;
            margin: 32px 0 16px;
            color: #1a1a2e;
        }
        .article-body h3 {
            font-size: 20px;
            font-weight: 600;
            margin: 24px 0 12px;
            color: #1a1a2e;
        }
        .article-body ul,
        .article-body ol {
            padding-left: 24px;
            margin-bottom: 1.2em;
        }
        .article-body li {
            margin-bottom: 6px;
        }
        .article-body blockquote {
            border-left: 4px solid #e74c3c;
            background: #fdf2f2;
            padding: 16px 20px;
            border-radius: 0 8px 8px 0;
            margin: 20px 0;
            color: #555;
        }
        .article-body img {
            border-radius: 12px;
            margin: 20px 0;
        }
        .article-body a {
            color: #e74c3c;
            text-decoration: underline;
        }
        .article-body a:hover {
            color: #cb4335;
        }
        .not-found-box {
            text-align: center;
            padding: 80px 24px;
            background: #fff;
            border-radius: 16px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
        }
        .not-found-box .icon-big {
            font-size: 64px;
            color: #ddd;
            margin-bottom: 16px;
        }
        .not-found-box h2 {
            font-size: 24px;
            font-weight: 700;
            color: #1a1a2e;
            margin-bottom: 8px;
        }
        .not-found-box p {
            color: #6c757d;
            margin-bottom: 20px;
        }
        .site-footer {
            background: #0f0f1e;
            color: rgba(255, 255, 255, 0.8);
            padding: 48px 24px 24px;
            margin-top: auto;
        }
        .footer-grid {
            max-width: 1120px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 32px;
        }
        .footer-brand .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            display: block;
        }
        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.7;
        }
        .site-footer h5 {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .site-footer a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
            margin-bottom: 10px;
            transition: color 0.2s;
        }
        .site-footer a:hover {
            color: #e74c3c;
        }
        .footer-bottom {
            max-width: 1120px;
            margin: 32px auto 0;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.3);
        }
        @media (max-width: 1024px) {
            .sidebar {
                transform: translateX(-100%);
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .main-wrapper {
                margin-left: 0;
            }
            .mobile-topbar {
                display: flex;
            }
            .overlay.active {
                display: block;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .article-body {
                padding: 24px 20px;
            }
            .article-header h1 {
                font-size: 24px;
            }
            .article-header {
                padding: 24px 0 16px;
            }
            .container-custom {
                padding: 0 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .site-footer {
                padding: 32px 16px 20px;
            }
        }
        @media (max-width: 520px) {
            .article-meta {
                flex-direction: column;
                gap: 6px;
            }
            .article-body p {
                font-size: 15px;
            }
        }

/* roulang page: category1 */
*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', 'Noto Sans', sans-serif;
            background: var(--color-surface, #f8fafc);
            color: var(--color-text-main, #0f172a);
            line-height: 1.6;
            min-height: 100vh;
        }
        :root {
            --sidebar-w: 240px;
            --header-h: 0px;
        }
        .app-layout {
            display: flex;
            min-height: 100vh;
        }
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-w);
            height: 100vh;
            background: #ffffff;
            border-right: 1px solid #e2e8f0;
            display: flex;
            flex-direction: column;
            z-index: 40;
            box-shadow: 2px 0 12px rgba(0, 0, 0, 0.04);
            transition: transform 0.3s ease;
        }
        .sidebar-brand {
            padding: 1.5rem 1.25rem 1rem;
            border-bottom: 1px solid #e2e8f0;
        }
        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            color: #fff;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            font-weight: 700;
            flex-shrink: 0;
        }
        .logo-text {
            font-size: 1.1rem;
            font-weight: 700;
            color: #0f172a;
            line-height: 1.3;
        }
        .logo-sub {
            font-size: 0.7rem;
            color: #64748b;
            letter-spacing: 0.5px;
        }
        .sidebar-nav {
            flex: 1;
            padding: 1rem 0.75rem;
            overflow-y: auto;
            display: flex;
            flex-direction: column;
            gap: 0.25rem;
        }
        .nav-label {
            font-size: 0.7rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: #94a3b8;
            padding: 0.5rem 0.75rem 0.25rem;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.625rem 0.75rem;
            border-radius: 0.5rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: #475569;
            text-decoration: none;
            transition: background 0.2s, color 0.2s;
        }
        .sidebar-nav a i {
            width: 1.25rem;
            text-align: center;
            font-size: 1rem;
            color: #94a3b8;
            transition: color 0.2s;
        }
        .sidebar-nav a:hover {
            background: #f1f5f9;
            color: #1e293b;
        }
        .sidebar-nav a:hover i {
            color: #3b82f6;
        }
        .sidebar-nav a.active {
            background: #eff6ff;
            color: #1d4ed8;
            font-weight: 600;
        }
        .sidebar-nav a.active i {
            color: #1d4ed8;
        }
        .sidebar-footer {
            padding: 1rem 1.25rem;
            border-top: 1px solid #e2e8f0;
            font-size: 0.75rem;
            color: #94a3b8;
            text-align: center;
        }
        .main-content {
            margin-left: var(--sidebar-w);
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        .page-header {
            background: #ffffff;
            border-bottom: 1px solid #e2e8f0;
            padding: 1.25rem 2rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            position: sticky;
            top: 0;
            z-index: 30;
        }
        .page-header h1 {
            font-size: 1.5rem;
            font-weight: 700;
            color: #0f172a;
        }
        .page-header .breadcrumb {
            font-size: 0.85rem;
            color: #64748b;
        }
        .page-header .breadcrumb a {
            color: #3b82f6;
            text-decoration: none;
        }
        .page-header .breadcrumb a:hover {
            text-decoration: underline;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: #0f172a;
            cursor: pointer;
            padding: 0.25rem;
        }
        .content-wrap {
            flex: 1;
            padding: 2rem;
            max-width: 1280px;
            width: 100%;
            margin: 0 auto;
        }
        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            color: #0f172a;
            margin-bottom: 0.5rem;
        }
        .section-sub {
            color: #64748b;
            margin-bottom: 2rem;
            font-size: 1rem;
        }
        .game-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 1.5rem;
        }
        .game-card {
            background: #ffffff;
            border-radius: 0.75rem;
            border: 1px solid #e2e8f0;
            overflow: hidden;
            transition: box-shadow 0.25s, transform 0.2s;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
        }
        .game-card:hover {
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            transform: translateY(-2px);
        }
        .game-card .card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            background: #e2e8f0;
            display: block;
        }
        .game-card .card-body {
            padding: 1.25rem 1.25rem 1.5rem;
        }
        .game-card .card-tags {
            display: flex;
            gap: 0.5rem;
            flex-wrap: wrap;
            margin-bottom: 0.75rem;
        }
        .game-card .tag {
            background: #eff6ff;
            color: #1d4ed8;
            font-size: 0.7rem;
            font-weight: 600;
            padding: 0.2rem 0.55rem;
            border-radius: 4px;
            letter-spacing: 0.3px;
        }
        .game-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: #0f172a;
            margin-bottom: 0.4rem;
        }
        .game-card .meta {
            font-size: 0.85rem;
            color: #64748b;
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 0.75rem;
        }
        .game-card .meta i {
            width: 1rem;
            color: #94a3b8;
        }
        .game-card .desc {
            font-size: 0.9rem;
            color: #475569;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .game-card .card-footer {
            margin-top: 1rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
            color: #fff;
            font-weight: 600;
            font-size: 0.85rem;
            padding: 0.5rem 1.25rem;
            border-radius: 0.5rem;
            border: none;
            cursor: pointer;
            text-decoration: none;
            transition: box-shadow 0.2s, transform 0.15s;
        }
        .btn-primary:hover {
            box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            transform: scale(0.97);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: transparent;
            color: #1d4ed8;
            font-weight: 600;
            font-size: 0.85rem;
            padding: 0.5rem 1.25rem;
            border-radius: 0.5rem;
            border: 1.5px solid #bfdbfe;
            cursor: pointer;
            text-decoration: none;
            transition: background 0.2s, border-color 0.2s;
        }
        .btn-outline:hover {
            background: #eff6ff;
            border-color: #3b82f6;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            background: #f1f5f9;
            color: #475569;
            font-size: 0.75rem;
            font-weight: 500;
            padding: 0.2rem 0.7rem;
            border-radius: 999px;
        }
        .badge-hot {
            background: #fef2f2;
            color: #dc2626;
        }
        .badge-new {
            background: #f0fdf4;
            color: #16a34a;
        }
        .rank-list {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .rank-item {
            background: #ffffff;
            border-radius: 0.75rem;
            border: 1px solid #e2e8f0;
            padding: 1rem 1.25rem;
            display: flex;
            align-items: center;
            gap: 1rem;
            transition: box-shadow 0.2s, background 0.2s;
        }
        .rank-item:hover {
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
            background: #fafcff;
        }
        .rank-num {
            width: 2rem;
            text-align: center;
            font-weight: 700;
            font-size: 1.1rem;
            color: #94a3b8;
        }
        .rank-num.top {
            color: #f97316;
        }
        .rank-item .info {
            flex: 1;
        }
        .rank-item .info h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #0f172a;
        }
        .rank-item .info p {
            font-size: 0.8rem;
            color: #64748b;
        }
        .rank-item .score {
            font-weight: 700;
            color: #1d4ed8;
            font-size: 1rem;
        }
        .faq-item {
            background: #ffffff;
            border-radius: 0.75rem;
            border: 1px solid #e2e8f0;
            padding: 1.25rem 1.5rem;
            margin-bottom: 0.75rem;
            transition: box-shadow 0.2s;
        }
        .faq-item:hover {
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
        }
        .faq-item h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #0f172a;
            margin-bottom: 0.4rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .faq-item h4 i {
            color: #3b82f6;
            font-size: 0.9rem;
        }
        .faq-item p {
            color: #475569;
            font-size: 0.9rem;
            line-height: 1.7;
            padding-left: 1.6rem;
        }
        .cta-block {
            background: linear-gradient(135deg, #1e3a8a, #1d4ed8);
            border-radius: 1rem;
            padding: 3rem 2rem;
            text-align: center;
            color: #fff;
            margin: 2rem 0;
        }
        .cta-block h2 {
            font-size: 1.75rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
        }
        .cta-block p {
            font-size: 1rem;
            opacity: 0.9;
            max-width: 600px;
            margin: 0 auto 1.5rem;
        }
        .cta-block .btn-cta {
            background: #fff;
            color: #1d4ed8;
            font-weight: 700;
            padding: 0.75rem 2rem;
            border-radius: 0.5rem;
            font-size: 1rem;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            text-decoration: none;
            transition: box-shadow 0.2s, transform 0.15s;
        }
        .cta-block .btn-cta:hover {
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
            transform: translateY(-2px);
        }
        .site-footer {
            background: #ffffff;
            border-top: 1px solid #e2e8f0;
            padding: 2.5rem 2rem 1.5rem;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2rem;
            max-width: 1280px;
            margin: 0 auto 2rem;
        }
        .footer-brand .logo-text {
            font-size: 1.2rem;
            margin-bottom: 0.5rem;
        }
        .footer-brand p {
            font-size: 0.85rem;
            color: #64748b;
            line-height: 1.7;
            max-width: 360px;
        }
        .site-footer h5 {
            font-size: 0.9rem;
            font-weight: 600;
            color: #0f172a;
            margin-bottom: 0.75rem;
        }
        .site-footer a {
            display: block;
            font-size: 0.85rem;
            color: #64748b;
            text-decoration: none;
            padding: 0.2rem 0;
            transition: color 0.2s;
        }
        .site-footer a:hover {
            color: #1d4ed8;
        }
        .footer-bottom {
            border-top: 1px solid #e2e8f0;
            padding-top: 1.25rem;
            text-align: center;
            font-size: 0.8rem;
            color: #94a3b8;
            max-width: 1280px;
            margin: 0 auto;
        }
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            :root {
                --sidebar-w: 0px;
            }
            .sidebar {
                transform: translateX(-100%);
            }
            .sidebar.open {
                transform: translateX(0);
                width: 260px;
                box-shadow: 4px 0 30px rgba(0, 0, 0, 0.12);
            }
            .main-content {
                margin-left: 0;
            }
            .page-header {
                padding: 1rem 1.25rem;
            }
            .page-header h1 {
                font-size: 1.25rem;
            }
            .hamburger {
                display: block;
            }
            .content-wrap {
                padding: 1.25rem;
            }
            .game-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .cta-block {
                padding: 2rem 1.25rem;
            }
            .cta-block h2 {
                font-size: 1.3rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .rank-item {
                flex-wrap: wrap;
                padding: 0.75rem 1rem;
            }
            .rank-item .score {
                flex: 0 0 auto;
            }
        }
        @media (max-width: 520px) {
            .game-grid {
                grid-template-columns: 1fr;
            }
            .page-header {
                flex-wrap: wrap;
                gap: 0.5rem;
            }
            .page-header .breadcrumb {
                font-size: 0.75rem;
            }
            .content-wrap {
                padding: 1rem;
            }
            .rank-item .info h4 {
                font-size: 0.9rem;
            }
        }
        .overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.3);
            z-index: 35;
        }
        .overlay.show {
            display: block;
        }
        @media (max-width:768px) {
            .overlay.show {
                display: block;
            }
        }

/* roulang page: category2 */
:root {
            --sidebar-width: 240px;
            --sidebar-collapsed: 68px;
            --color-bg: #f8fafc;
            --color-card-bg: #ffffff;
            --color-border: #e9edf2;
            --color-text: #1e293b;
            --color-text-muted: #64748b;
            --color-text-light: #94a3b8;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.10);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: 'PingFang SC', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
            background: var(--color-bg);
            color: var(--color-text);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            display: flex;
            min-height: 100vh;
        }

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

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

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

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar {
            width: 6px;
            height: 6px;
        }
        ::-webkit-scrollbar-track {
            background: transparent;
        }
        ::-webkit-scrollbar-thumb {
            background: #cbd5e1;
            border-radius: 3px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #94a3b8;
        }

        /* ===== Sidebar ===== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: #ffffff;
            border-right: 1px solid var(--color-border);
            display: flex;
            flex-direction: column;
            z-index: 100;
            transition: transform var(--transition);
            box-shadow: 1px 0 8px rgba(0, 0, 0, 0.04);
        }

        .sidebar-brand {
            padding: 20px 18px 16px;
            border-bottom: 1px solid var(--color-border);
            flex-shrink: 0;
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-md);
            background: linear-gradient(135deg, #0c8ee2, #015a9b);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: #0b406a;
            letter-spacing: 0.5px;
            line-height: 1.2;
        }

        .logo-sub {
            font-size: 11px;
            color: var(--color-text-muted);
            letter-spacing: 1px;
            font-weight: 400;
        }

        .sidebar-nav {
            flex: 1;
            overflow-y: auto;
            padding: 12px 10px;
        }

        .nav-label {
            font-size: 11px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: var(--color-text-light);
            padding: 12px 10px 6px;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 14px;
            margin: 2px 0;
            border-radius: var(--radius-md);
            font-size: 14px;
            font-weight: 500;
            color: var(--color-text-muted);
            transition: var(--transition);
        }

        .sidebar-nav a i {
            width: 20px;
            text-align: center;
            font-size: 16px;
            flex-shrink: 0;
        }

        .sidebar-nav a:hover {
            background: #f1f5f9;
            color: var(--color-text);
        }

        .sidebar-nav a.active {
            background: #e8f0fe;
            color: #0070c0;
            font-weight: 600;
        }

        .sidebar-nav a.active i {
            color: #0070c0;
        }

        .sidebar-footer {
            padding: 14px 18px;
            border-top: 1px solid var(--color-border);
            font-size: 12px;
            color: var(--color-text-light);
            flex-shrink: 0;
            text-align: center;
        }

        /* ===== Main Content ===== */
        .main-content {
            margin-left: var(--sidebar-width);
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        .page-container {
            max-width: 1200px;
            width: 100%;
            padding: 0 28px;
            margin: 0 auto;
        }

        /* ===== Hero ===== */
        .category-hero {
            background: linear-gradient(135deg, #f0f7ff 0%, #e0effe 50%, #d4e8fa 100%);
            padding: 48px 0 40px;
            border-bottom: 1px solid var(--color-border);
        }

        .category-hero h1 {
            font-size: 32px;
            font-weight: 800;
            color: #0b406a;
            line-height: 1.25;
            margin: 0 0 12px;
        }

        .category-hero p {
            font-size: 16px;
            color: var(--color-text-muted);
            max-width: 640px;
            margin: 0;
            line-height: 1.7;
        }

        /* ===== Filter Tabs ===== */
        .filter-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            padding: 24px 0 8px;
        }

        .filter-tab {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 9999px;
            font-size: 13px;
            font-weight: 500;
            color: var(--color-text-muted);
            background: #ffffff;
            border: 1px solid var(--color-border);
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

        .filter-tab:hover {
            border-color: #0c8ee2;
            color: #0070c0;
            background: #f0f7ff;
        }

        .filter-tab.active {
            background: #0070c0;
            border-color: #0070c0;
            color: #fff;
        }

        /* ===== News Cards ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 20px;
            padding: 20px 0 40px;
        }

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

        .news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: #b8dffb;
        }

        .news-card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            background: #e9edf2;
            display: block;
        }

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

        .news-card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--color-text-light);
            margin-bottom: 8px;
        }

        .news-card-badge {
            display: inline-block;
            padding: 2px 10px;
            border-radius: 9999px;
            font-size: 11px;
            font-weight: 600;
            background: #e8f0fe;
            color: #0070c0;
        }

        .news-card-badge.hot {
            background: #fef2f2;
            color: #dc2626;
        }

        .news-card-badge.update {
            background: #f0fdf4;
            color: #16a34a;
        }

        .news-card-badge.event {
            background: #fff7ed;
            color: #ea580c;
        }

        .news-card-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-text);
            line-height: 1.4;
            margin: 0 0 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card-excerpt {
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.6;
            margin: 0 0 16px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid #f1f5f9;
            padding-top: 12px;
            margin-top: auto;
        }

        .news-card-date {
            font-size: 12px;
            color: var(--color-text-light);
        }

        .news-card-link {
            font-size: 13px;
            font-weight: 600;
            color: #0070c0;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .news-card-link i {
            font-size: 12px;
            transition: transform var(--transition);
        }

        .news-card-link:hover i {
            transform: translateX(3px);
        }

        /* ===== Announcement ===== */
        .announcement-section {
            padding: 40px 0;
        }

        .announcement-card {
            background: linear-gradient(135deg, #f8fafc, #eef2f7);
            border-radius: var(--radius-lg);
            border: 1px solid var(--color-border);
            padding: 28px 32px;
            display: flex;
            align-items: flex-start;
            gap: 20px;
            transition: var(--transition);
        }

        .announcement-card:hover {
            box-shadow: var(--shadow-md);
        }

        .announcement-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: #e8f0fe;
            color: #0070c0;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            flex-shrink: 0;
        }

        .announcement-content {
            flex: 1;
        }

        .announcement-content h3 {
            font-size: 17px;
            font-weight: 700;
            margin: 0 0 6px;
            color: var(--color-text);
        }

        .announcement-content p {
            font-size: 14px;
            color: var(--color-text-muted);
            margin: 0 0 8px;
            line-height: 1.6;
        }

        .announcement-tag {
            display: inline-block;
            padding: 2px 10px;
            border-radius: 9999px;
            font-size: 11px;
            font-weight: 600;
            background: #fef2f2;
            color: #dc2626;
        }

        /* ===== Timeline ===== */
        .timeline-section {
            padding: 40px 0;
        }

        .timeline {
            position: relative;
            padding-left: 28px;
        }

        .timeline::before {
            content: '';
            position: absolute;
            left: 8px;
            top: 4px;
            bottom: 4px;
            width: 2px;
            background: #e2e8f0;
        }

        .timeline-item {
            position: relative;
            padding: 0 0 24px 20px;
        }

        .timeline-item:last-child {
            padding-bottom: 0;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -24px;
            top: 6px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: #ffffff;
            border: 2px solid #0c8ee2;
            box-shadow: 0 0 0 3px #f0f7ff;
        }

        .timeline-item.highlight::before {
            background: #0c8ee2;
            border-color: #0c8ee2;
        }

        .timeline-date {
            font-size: 12px;
            color: var(--color-text-light);
            font-weight: 500;
            margin-bottom: 4px;
        }

        .timeline-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
            margin: 0 0 4px;
        }

        .timeline-desc {
            font-size: 13px;
            color: var(--color-text-muted);
            margin: 0;
            line-height: 1.5;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 40px 0;
        }

        .faq-item {
            border-bottom: 1px solid var(--color-border);
            padding: 16px 0;
        }

        .faq-item:first-child {
            border-top: 1px solid var(--color-border);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text);
            padding: 4px 0;
            user-select: none;
        }

        .faq-question i {
            font-size: 14px;
            color: var(--color-text-light);
            transition: transform var(--transition);
            flex-shrink: 0;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: #0070c0;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0;
            font-size: 14px;
            color: var(--color-text-muted);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 200px;
            padding: 10px 0 4px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 48px 0 56px;
        }

        .cta-box {
            background: linear-gradient(135deg, #0b406a 0%, #015a9b 50%, #0070c0 100%);
            border-radius: var(--radius-xl);
            padding: 44px 40px;
            text-align: center;
            color: #fff;
            box-shadow: var(--shadow-lg);
        }

        .cta-box h2 {
            font-size: 26px;
            font-weight: 800;
            margin: 0 0 12px;
            letter-spacing: 0.5px;
        }

        .cta-box p {
            font-size: 15px;
            opacity: 0.9;
            margin: 0 0 24px;
            max-width: 480px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.7;
        }

        .cta-form {
            display: flex;
            gap: 12px;
            max-width: 480px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }

        .cta-form input {
            flex: 1;
            min-width: 200px;
            padding: 12px 18px;
            border-radius: 9999px;
            border: none;
            outline: none;
            font-size: 14px;
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            backdrop-filter: blur(4px);
            transition: var(--transition);
        }

        .cta-form input::placeholder {
            color: rgba(255, 255, 255, 0.6);
        }

        .cta-form input:focus {
            background: rgba(255, 255, 255, 0.25);
            box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.3);
        }

        .cta-form button {
            padding: 12px 28px;
            border-radius: 9999px;
            border: none;
            background: #fff;
            color: #0070c0;
            font-weight: 700;
            font-size: 14px;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

        .cta-form button:hover {
            background: #f0f7ff;
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
        }

        .cta-form button:active {
            transform: scale(0.97);
        }

        /* ===== Site Footer ===== */
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 48px 0 28px;
            margin-top: auto;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            max-width: 1200px;
            padding: 0 28px;
            margin: 0 auto;
        }

        .footer-brand .logo-text {
            color: #fff;
            font-size: 20px;
            margin-bottom: 8px;
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.7;
            color: #94a3b8;
            margin: 8px 0 0;
            max-width: 320px;
        }

        .footer-grid h5 {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 14px;
        }

        .footer-grid a {
            display: block;
            font-size: 13px;
            color: #94a3b8;
            padding: 4px 0;
            transition: var(--transition);
        }

        .footer-grid a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-bottom {
            max-width: 1200px;
            padding: 24px 28px 0;
            margin: 32px auto 0;
            border-top: 1px solid #1e293b;
            font-size: 13px;
            color: #64748b;
            text-align: center;
        }

        /* ===== Section Title ===== */
        .section-title {
            font-size: 22px;
            font-weight: 800;
            color: var(--color-text);
            margin: 0 0 6px;
        }

        .section-subtitle {
            font-size: 14px;
            color: var(--color-text-muted);
            margin: 0 0 20px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .news-grid {
                grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            }
        }

        @media (max-width: 768px) {
            :root {
                --sidebar-width: 0px;
            }

            .sidebar {
                transform: translateX(-100%);
                width: 260px;
                box-shadow: 4px 0 24px rgba(0, 0, 0, 0.15);
            }

            .sidebar.open {
                transform: translateX(0);
            }

            .main-content {
                margin-left: 0;
            }

            .page-container {
                padding: 0 16px;
            }

            .category-hero {
                padding: 32px 0 28px;
            }

            .category-hero h1 {
                font-size: 24px;
            }

            .category-hero p {
                font-size: 14px;
            }

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

            .announcement-card {
                flex-direction: column;
                padding: 20px;
            }

            .cta-box {
                padding: 32px 20px;
            }

            .cta-box h2 {
                font-size: 20px;
            }

            .cta-form input {
                min-width: 160px;
            }

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

            .filter-tabs {
                overflow-x: auto;
                flex-wrap: nowrap;
                -webkit-overflow-scrolling: touch;
                padding-bottom: 12px;
            }

            .filter-tab {
                flex-shrink: 0;
            }

            /* Mobile hamburger */
            .mobile-hamburger {
                display: flex !important;
            }

            .timeline {
                padding-left: 20px;
            }

            .timeline-item {
                padding-left: 16px;
            }

            .timeline-item::before {
                left: -18px;
                width: 12px;
                height: 12px;
            }
        }

        @media (max-width: 520px) {
            .category-hero h1 {
                font-size: 20px;
            }

            .news-card-img {
                height: 140px;
            }

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

            .news-card-title {
                font-size: 15px;
            }

            .section-title {
                font-size: 18px;
            }

            .cta-form {
                flex-direction: column;
                align-items: stretch;
            }

            .cta-form input {
                min-width: unset;
                width: 100%;
            }

            .cta-form button {
                width: 100%;
            }
        }

        @media (min-width: 769px) {
            .mobile-hamburger {
                display: none !important;
            }
            .mobile-overlay {
                display: none !important;
            }
        }

        /* ===== Mobile overlay ===== */
        .mobile-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.4);
            z-index: 99;
            opacity: 0;
            pointer-events: none;
            transition: opacity var(--transition);
        }

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

        .mobile-hamburger {
            position: fixed;
            top: 14px;
            left: 14px;
            z-index: 110;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-md);
            background: #ffffff;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-md);
            display: none;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            font-size: 18px;
            color: var(--color-text);
            transition: var(--transition);
        }

        .mobile-hamburger:hover {
            background: #f1f5f9;
        }

        /* ===== Utility ===== */
        .text-brand {
            color: #0070c0;
        }
        .bg-brand-soft {
            background: #f0f7ff;
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--color-text-muted);
            padding: 16px 0 4px;
            flex-wrap: wrap;
        }

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

        .breadcrumb a:hover {
            color: #0070c0;
        }

        .breadcrumb span {
            color: var(--color-text-light);
        }

        .breadcrumb .sep {
            color: var(--color-text-light);
            font-size: 10px;
        }

        /* ===== Load More ===== */
        .load-more-wrap {
            text-align: center;
            padding: 12px 0 32px;
        }

        .btn-load-more {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 32px;
            border-radius: 9999px;
            background: #ffffff;
            border: 1px solid var(--color-border);
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text-muted);
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-load-more:hover {
            border-color: #0c8ee2;
            color: #0070c0;
            background: #f0f7ff;
            box-shadow: var(--shadow-sm);
        }

        .btn-load-more i {
            font-size: 13px;
        }

        /* ===== Pinned Badge ===== */
        .pinned-badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 11px;
            font-weight: 600;
            color: #dc2626;
            background: #fef2f2;
            padding: 2px 10px;
            border-radius: 9999px;
        }

/* roulang page: category3 */
:root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --accent: #f97316;
            --bg-sidebar: #0f172a;
            --bg-body: #f1f5f9;
            --text-body: #1e293b;
            --text-muted: #94a3b8;
            --radius: 0.75rem;
            --radius-lg: 1rem;
            --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.04), 0 4px 16px rgba(0, 0, 0, 0.06);
            --shadow-hover: 0 8px 32px rgba(0, 0, 0, 0.10);
            --transition: all 0.2s ease;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Inter', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            background: var(--bg-body);
            color: var(--text-body);
            line-height: 1.6;
            min-height: 100vh;
            display: flex;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            transition: var(--transition);
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: 260px;
            height: 100vh;
            background: var(--bg-sidebar);
            color: #fff;
            display: flex;
            flex-direction: column;
            z-index: 1000;
            transition: transform 0.3s ease;
            overflow-y: auto;
        }
        .sidebar-brand {
            padding: 1.5rem 1.25rem 1rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .logo-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--primary), #7c3aed);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            flex-shrink: 0;
        }
        .logo-text {
            font-size: 1.1rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: #fff;
            line-height: 1.2;
        }
        .logo-sub {
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.5);
            letter-spacing: 0.05em;
        }
        .sidebar-nav {
            flex: 1;
            padding: 1.25rem 0.75rem;
            display: flex;
            flex-direction: column;
            gap: 0.25rem;
        }
        .nav-label {
            font-size: 0.7rem;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            color: rgba(255, 255, 255, 0.3);
            padding: 0.5rem 0.75rem 0.75rem;
            font-weight: 600;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.7rem 0.85rem;
            border-radius: 0.6rem;
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.9rem;
            font-weight: 500;
            transition: var(--transition);
        }
        .sidebar-nav a i {
            width: 1.25rem;
            text-align: center;
            font-size: 1rem;
            flex-shrink: 0;
        }
        .sidebar-nav a:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }
        .sidebar-nav a.active {
            background: rgba(37, 99, 235, 0.25);
            color: #fff;
            box-shadow: inset 3px 0 0 var(--primary);
        }
        .sidebar-footer {
            padding: 1rem 1.25rem;
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.3);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            text-align: center;
        }
        .main-content {
            margin-left: 260px;
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 1.5rem;
            width: 100%;
        }
        .page-header {
            padding: 2.5rem 0 1.5rem;
            background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
            color: #fff;
        }
        .page-header h1 {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.2;
        }
        .page-header p {
            color: rgba(255, 255, 255, 0.65);
            font-size: 1.05rem;
            margin-top: 0.5rem;
            max-width: 640px;
        }
        .section-title {
            font-size: 1.5rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            margin-bottom: 1.5rem;
            color: #0f172a;
        }
        .section-title span {
            color: var(--primary);
        }
        .card {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            overflow: hidden;
        }
        .card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .badge {
            display: inline-block;
            padding: 0.2rem 0.65rem;
            border-radius: 9999px;
            font-size: 0.7rem;
            font-weight: 600;
            letter-spacing: 0.02em;
        }
        .badge-hot {
            background: #fef2f2;
            color: #dc2626;
        }
        .badge-new {
            background: #ecfdf5;
            color: #059669;
        }
        .badge-top {
            background: #fff7ed;
            color: #ea580c;
        }
        .badge-pin {
            background: #eef2ff;
            color: #4f46e5;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.65rem 1.5rem;
            background: var(--primary);
            color: #fff;
            border-radius: 0.6rem;
            font-weight: 600;
            font-size: 0.9rem;
            transition: var(--transition);
            border: none;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(37, 99, 235, 0.3);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.6rem 1.4rem;
            background: transparent;
            color: var(--primary);
            border: 1.5px solid var(--primary);
            border-radius: 0.6rem;
            font-weight: 600;
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-1px);
        }
        .avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: linear-gradient(135deg, #e2e8f0, #cbd5e1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            font-size: 0.85rem;
            color: #475569;
            flex-shrink: 0;
            overflow: hidden;
        }
        .avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .avatar-ring {
            border: 2px solid #fff;
            box-shadow: 0 0 0 2px var(--primary);
        }
        .tag {
            display: inline-block;
            padding: 0.3rem 0.75rem;
            background: #f1f5f9;
            border-radius: 9999px;
            font-size: 0.8rem;
            color: #475569;
            font-weight: 500;
            transition: var(--transition);
        }
        .tag:hover {
            background: #e2e8f0;
            color: #0f172a;
        }
        .tag-active {
            background: var(--primary);
            color: #fff;
        }
        .tag-active:hover {
            background: var(--primary-dark);
            color: #fff;
        }
        .divider {
            height: 1px;
            background: #e2e8f0;
            margin: 2rem 0;
        }
        .faq-item {
            border-bottom: 1px solid #e2e8f0;
            padding: 1.25rem 0;
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-question {
            font-weight: 600;
            font-size: 1rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            color: #0f172a;
        }
        .faq-question i {
            color: var(--primary);
            font-size: 0.85rem;
            transition: var(--transition);
        }
        .faq-answer {
            margin-top: 0.6rem;
            color: #475569;
            font-size: 0.92rem;
            line-height: 1.7;
            padding-right: 2rem;
        }
        .site-footer {
            background: #0f172a;
            color: rgba(255, 255, 255, 0.7);
            padding: 3rem 0 1.5rem;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 2.5rem;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .footer-brand .logo-text {
            font-size: 1.15rem;
            margin-bottom: 0.75rem;
        }
        .footer-brand p {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
            line-height: 1.7;
            max-width: 340px;
        }
        .site-footer h5 {
            color: #fff;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }
        .site-footer a {
            display: block;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.55);
            padding: 0.3rem 0;
            transition: var(--transition);
        }
        .site-footer a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-bottom {
            max-width: 1240px;
            margin: 2rem auto 0;
            padding: 1.25rem 1.5rem 0;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.35);
            text-align: center;
        }
        .mobile-toggle {
            display: none;
            position: fixed;
            top: 0.75rem;
            left: 0.75rem;
            z-index: 1100;
            background: #0f172a;
            color: #fff;
            border: none;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            font-size: 1.25rem;
            cursor: pointer;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
            align-items: center;
            justify-content: center;
        }
        .overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.4);
            z-index: 999;
            backdrop-filter: blur(2px);
        }
        .post-list {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .post-item {
            display: flex;
            align-items: flex-start;
            gap: 1rem;
            padding: 1.25rem;
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }
        .post-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-1px);
        }
        .post-item .post-avatar {
            flex-shrink: 0;
        }
        .post-item .post-body {
            flex: 1;
            min-width: 0;
        }
        .post-item .post-title {
            font-weight: 600;
            font-size: 1rem;
            color: #0f172a;
            margin-bottom: 0.25rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-wrap: wrap;
        }
        .post-item .post-meta {
            font-size: 0.8rem;
            color: #94a3b8;
            display: flex;
            align-items: center;
            gap: 0.75rem;
            flex-wrap: wrap;
            margin-top: 0.3rem;
        }
        .post-item .post-excerpt {
            font-size: 0.88rem;
            color: #475569;
            margin-top: 0.4rem;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-item .post-stats {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-top: 0.5rem;
            font-size: 0.78rem;
            color: #94a3b8;
        }
        .post-item .post-stats i {
            margin-right: 0.25rem;
        }
        .leaderboard-item {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 0.85rem 1rem;
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }
        .leaderboard-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateX(3px);
        }
        .leaderboard-rank {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.85rem;
            flex-shrink: 0;
            background: #f1f5f9;
            color: #64748b;
        }
        .leaderboard-rank.top1 {
            background: linear-gradient(135deg, #f59e0b, #f97316);
            color: #fff;
        }
        .leaderboard-rank.top2 {
            background: linear-gradient(135deg, #94a3b8, #64748b);
            color: #fff;
        }
        .leaderboard-rank.top3 {
            background: linear-gradient(135deg, #cd7f32, #a0522d);
            color: #fff;
        }
        .stat-card {
            text-align: center;
            padding: 1.5rem 1rem;
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .stat-card .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.1;
        }
        .stat-card .stat-label {
            font-size: 0.85rem;
            color: #64748b;
            margin-top: 0.3rem;
        }
        .stat-card .stat-icon {
            font-size: 1.75rem;
            color: var(--primary);
            opacity: 0.15;
            margin-bottom: 0.5rem;
        }
        .activity-feed {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .activity-item {
            display: flex;
            align-items: flex-start;
            gap: 0.85rem;
            padding: 0.85rem 1rem;
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }
        .activity-item:hover {
            box-shadow: var(--shadow-hover);
        }
        .activity-item .activity-icon {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            flex-shrink: 0;
            background: #eef2ff;
            color: var(--primary);
        }
        .activity-item .activity-body {
            flex: 1;
            min-width: 0;
        }
        .activity-item .activity-text {
            font-size: 0.88rem;
            color: #1e293b;
        }
        .activity-item .activity-text strong {
            font-weight: 600;
        }
        .activity-item .activity-time {
            font-size: 0.75rem;
            color: #94a3b8;
            margin-top: 0.15rem;
        }
        .hot-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2rem;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 768px) {
            .sidebar {
                transform: translateX(-100%);
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .mobile-toggle {
                display: flex;
            }
            .overlay.show {
                display: block;
            }
            .main-content {
                margin-left: 0;
                padding-top: 0;
            }
            .page-header {
                padding: 1.75rem 0 1.25rem;
            }
            .page-header h1 {
                font-size: 1.5rem;
            }
            .page-header p {
                font-size: 0.95rem;
            }
            .container {
                padding: 0 1rem;
            }
            .section-title {
                font-size: 1.25rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .footer-brand p {
                max-width: 100%;
            }
            .post-item {
                padding: 1rem;
                flex-wrap: wrap;
            }
            .post-item .post-avatar {
                width: 36px;
                height: 36px;
            }
            .stat-card .stat-number {
                font-size: 1.6rem;
            }
            .leaderboard-item {
                padding: 0.7rem 0.85rem;
            }
        }
        @media (max-width: 520px) {
            .page-header h1 {
                font-size: 1.3rem;
            }
            .post-item .post-title {
                font-size: 0.92rem;
            }
            .post-item .post-meta {
                font-size: 0.72rem;
                gap: 0.5rem;
            }
            .post-item .post-stats {
                font-size: 0.72rem;
                gap: 0.65rem;
                flex-wrap: wrap;
            }
            .stat-card {
                padding: 1rem 0.75rem;
            }
            .stat-card .stat-number {
                font-size: 1.35rem;
            }
            .btn-primary,
            .btn-outline {
                padding: 0.55rem 1.1rem;
                font-size: 0.82rem;
            }
            .hot-tags {
                gap: 0.35rem;
            }
            .tag {
                font-size: 0.72rem;
                padding: 0.2rem 0.55rem;
            }
            .activity-item {
                padding: 0.7rem 0.75rem;
            }
            .faq-question {
                font-size: 0.92rem;
            }
            .faq-answer {
                font-size: 0.85rem;
            }
        }