/* roulang page: index */
:root {
            --bg-primary: #0a0a14;
            --bg-secondary: #12121f;
            --bg-card: rgba(255,255,255,0.04);
            --bg-card-hover: rgba(255,255,255,0.08);
            --border-color: rgba(255,255,255,0.08);
            --border-color-hover: rgba(255,255,255,0.16);
            --primary: #8b5cf6;
            --primary-light: #a78bfa;
            --accent: #f59e0b;
            --text-main: #e2e8f0;
            --text-sub: #94a3b8;
            --text-dim: #64748b;
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 10px;
            --shadow-card: 0 4px 24px rgba(0,0,0,0.3);
            --shadow-hover: 0 12px 48px rgba(139,92,246,0.18);
            --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --header-height: 76px;
        }
        *,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            background: var(--bg-primary);
            color: var(--text-main);
            line-height: 1.7;
            overflow-x: hidden;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input {
            font-family: inherit;
        }
        .container-x {
            max-width: 1360px;
            margin: 0 auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            height: var(--header-height);
            display: flex;
            align-items: center;
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            background: rgba(10, 10, 20, 0.5);
            border-bottom: 1px solid var(--border-color);
            transition: all 0.4s ease;
        }
        .site-header.scrolled {
            background: rgba(10, 10, 20, 0.92);
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.4);
            border-bottom-color: rgba(255, 255, 255, 0.06);
        }
        .site-header .brand {
            font-size: 1.35rem;
            font-weight: 800;
            letter-spacing: 0.5px;
            background: linear-gradient(135deg, #c4b5fd 0%, #8b5cf6 60%, #f59e0b 130%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            white-space: nowrap;
        }
        .site-header .brand i {
            font-size: 1.2rem;
            color: var(--primary-light);
            -webkit-text-fill-color: var(--primary-light);
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .nav-link {
            padding: 0.55rem 1.15rem;
            border-radius: 50px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-sub);
            transition: all var(--transition);
            position: relative;
        }
        .nav-link:hover {
            color: var(--text-main);
            background: rgba(255, 255, 255, 0.06);
        }
        .nav-link.active {
            color: #fff;
            background: linear-gradient(135deg, rgba(139, 92, 246, 0.35), rgba(139, 92, 246, 0.12));
            box-shadow: inset 0 0 0 1px rgba(139, 92, 246, 0.3);
        }
        .nav-cta {
            background: linear-gradient(135deg, #7c3aed, #a78bfa);
            color: #fff;
            padding: 0.55rem 1.4rem;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 600;
            transition: all var(--transition);
            box-shadow: 0 4px 20px rgba(124, 58, 237, 0.4);
            white-space: nowrap;
        }
        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(124, 58, 237, 0.5);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            background: transparent;
            border: none;
            padding: 6px;
        }
        .hamburger span {
            width: 24px;
            height: 2px;
            background: var(--text-main);
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        .hamburger.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .mobile-menu {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            background: rgba(10, 10, 20, 0.97);
            backdrop-filter: blur(24px);
            border-bottom: 1px solid var(--border-color);
            padding: 1rem 1.5rem 1.5rem;
            z-index: 99;
            flex-direction: column;
            gap: 0.5rem;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
        }
        .mobile-menu.open {
            display: flex;
        }
        .mobile-menu a {
            padding: 0.75rem 1rem;
            border-radius: 12px;
            font-weight: 500;
            color: var(--text-sub);
            transition: all 0.2s;
        }
        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: #fff;
            background: rgba(139, 92, 246, 0.2);
        }
        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            padding: 120px 0 80px;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            z-index: 0;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 10, 20, 0.72) 0%, rgba(10, 10, 20, 0.55) 40%, rgba(10, 10, 20, 0.82) 100%);
            z-index: 1;
        }
        .hero-glow {
            position: absolute;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(139, 92, 246, 0.3) 0%, transparent 70%);
            top: 20%;
            left: 30%;
            z-index: 1;
            pointer-events: none;
            animation: heroFloat 8s ease-in-out infinite alternate;
        }
        @keyframes heroFloat {
            0% {
                transform: translateY(0) scale(1);
                opacity: 0.7;
            }
            100% {
                transform: translateY(-40px) scale(1.1);
                opacity: 1;
            }
        }
        .hero-content {
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 20px;
            border-radius: 50px;
            background: rgba(139, 92, 246, 0.18);
            border: 1px solid rgba(139, 92, 246, 0.3);
            color: #c4b5fd;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 1px;
            backdrop-filter: blur(8px);
            text-transform: uppercase;
        }
        .hero h1 {
            font-size: clamp(2.6rem, 6vw, 4.5rem);
            font-weight: 900;
            line-height: 1.15;
            letter-spacing: -1px;
            margin: 1.4rem 0 1rem;
        }
        .hero h1 .gradient-text {
            background: linear-gradient(135deg, #c4b5fd 0%, #8b5cf6 40%, #f59e0b 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-desc {
            font-size: 1.1rem;
            color: var(--text-sub);
            max-width: 640px;
            margin: 0 auto 2.2rem;
            line-height: 1.8;
        }
        .hero-btns {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 0.85rem 2rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            border: none;
            cursor: pointer;
        }
        .btn-primary-hero {
            background: linear-gradient(135deg, #7c3aed, #a78bfa);
            color: #fff;
            box-shadow: 0 6px 30px rgba(124, 58, 237, 0.4);
        }
        .btn-primary-hero:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 44px rgba(124, 58, 237, 0.55);
        }
        .btn-outline-hero {
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-main);
            border: 1px solid rgba(255, 255, 255, 0.18);
            backdrop-filter: blur(8px);
        }
        .btn-outline-hero:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.35);
            transform: translateY(-3px);
        }
        /* ===== 通用板块 ===== */
        .section {
            padding: 90px 0;
        }
        .section-tag {
            display: inline-block;
            padding: 6px 18px;
            border-radius: 50px;
            background: rgba(139, 92, 246, 0.14);
            border: 1px solid rgba(139, 92, 246, 0.25);
            color: #c4b5fd;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 1px;
            text-transform: uppercase;
        }
        .section-title {
            font-size: clamp(1.8rem, 3.4vw, 2.6rem);
            font-weight: 800;
            line-height: 1.25;
            margin-top: 0.8rem;
            letter-spacing: -0.5px;
        }
        .section-sub {
            color: var(--text-sub);
            font-size: 1.05rem;
            margin-top: 0.6rem;
        }
        /* ===== 特色卡片 ===== */
        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 2rem 1.8rem;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card:hover {
            background: var(--bg-card-hover);
            border-color: rgba(139, 92, 246, 0.25);
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .feature-icon {
            width: 60px;
            height: 60px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 1.2rem;
            background: linear-gradient(135deg, rgba(139, 92, 246, 0.25), rgba(139, 92, 246, 0.08));
            color: var(--primary-light);
            border: 1px solid rgba(139, 92, 246, 0.2);
        }
        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
        }
        .feature-card p {
            color: var(--text-sub);
            font-size: 0.92rem;
            line-height: 1.7;
        }
        /* ===== 分类入口 ===== */
        .category-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: flex-end;
            transition: all var(--transition);
            border: 1px solid var(--border-color);
        }
        .category-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .category-card:hover img {
            transform: scale(1.06);
        }
        .category-card .cat-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 30%, rgba(10, 10, 20, 0.92) 80%);
        }
        .category-card .cat-body {
            position: relative;
            z-index: 2;
            padding: 1.8rem 2rem;
            width: 100%;
        }
        .category-card h3 {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
        }
        .category-card p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
            margin-top: 0.3rem;
        }
        .category-card .cat-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 0.8rem;
            color: #c4b5fd;
            font-size: 0.9rem;
            font-weight: 600;
            transition: gap 0.3s ease;
        }
        .category-card:hover .cat-link {
            gap: 10px;
            color: #fff;
        }
        /* ===== 最新资讯 ===== */
        .post-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 1.6rem 1.6rem;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            height: 100%;
            position: relative;
            overflow: hidden;
        }
        .post-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, transparent, var(--primary), var(--accent), transparent);
            transform: scaleX(0);
            transition: transform 0.5s ease;
        }
        .post-card:hover::before {
            transform: scaleX(1);
        }
        .post-card:hover {
            background: var(--bg-card-hover);
            border-color: rgba(139, 92, 246, 0.2);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .post-card .tag {
            align-self: flex-start;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 30px;
            background: rgba(139, 92, 246, 0.15);
            color: #c4b5fd;
            border: 1px solid rgba(139, 92, 246, 0.2);
            margin-bottom: 0.9rem;
            letter-spacing: 0.5px;
        }
        .post-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            line-height: 1.5;
            margin-bottom: 0.6rem;
            transition: color 0.2s;
        }
        .post-card:hover h3 {
            color: var(--primary-light);
        }
        .post-card p {
            color: var(--text-sub);
            font-size: 0.88rem;
            line-height: 1.7;
            flex: 1;
        }
        .post-card .post-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-top: 1rem;
            color: var(--text-dim);
            font-size: 0.82rem;
        }
        .post-card .post-meta i {
            font-size: 0.75rem;
        }
        .empty-state {
            grid-column: 1 / -1;
            text-align: center;
            padding: 3rem 2rem;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px dashed var(--border-color-hover);
        }
        .empty-state i {
            font-size: 2.5rem;
            color: var(--text-dim);
            margin-bottom: 1rem;
        }
        /* ===== 热门推荐 ===== */
        .game-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            position: relative;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
        }
        .game-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(139, 92, 246, 0.3);
        }
        .game-card img {
            width: 100%;
            height: 220px;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .game-card:hover img {
            transform: scale(1.05);
        }
        .game-card-body {
            padding: 1.3rem 1.4rem;
            background: var(--bg-secondary);
        }
        .game-card-body h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 0.3rem;
        }
        .game-card-body .game-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 600;
            color: var(--accent);
            background: rgba(245, 158, 11, 0.1);
            padding: 3px 10px;
            border-radius: 30px;
            border: 1px solid rgba(245, 158, 11, 0.2);
        }
        .game-card-body p {
            color: var(--text-sub);
            font-size: 0.84rem;
            line-height: 1.6;
            margin-top: 0.5rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        /* ===== 数据统计 ===== */
        .stats-section {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            position: relative;
            overflow: hidden;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(139, 92, 246, 0.15), transparent 70%);
            top: -100px;
            right: -100px;
            border-radius: 50%;
        }
        .stat-item {
            text-align: center;
            padding: 1.5rem;
        }
        .stat-number {
            font-size: 2.8rem;
            font-weight: 900;
            background: linear-gradient(135deg, #c4b5fd, #8b5cf6);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }
        .stat-label {
            color: var(--text-sub);
            font-size: 0.95rem;
            margin-top: 0.4rem;
            font-weight: 500;
        }
        /* ===== 流程 ===== */
        .step-card {
            text-align: center;
            padding: 2rem 1.5rem;
            position: relative;
        }
        .step-num {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(139, 92, 246, 0.25), rgba(139, 92, 246, 0.08));
            border: 1px solid rgba(139, 92, 246, 0.3);
            color: var(--primary-light);
            font-size: 1.3rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.2rem;
        }
        .step-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }
        .step-card p {
            color: var(--text-sub);
            font-size: 0.88rem;
            line-height: 1.65;
        }
        .step-arrow {
            position: absolute;
            top: 50%;
            right: -20px;
            transform: translateY(-50%);
            color: var(--text-dim);
            font-size: 1.2rem;
            z-index: 2;
        }
        @media (max-width: 768px) {
            .step-arrow {
                display: none;
            }
        }
        /* ===== FAQ ===== */
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: 0.8rem;
            overflow: hidden;
            transition: all 0.3s ease;
        }
        .faq-item:hover {
            border-color: rgba(139, 92, 246, 0.2);
        }
        .faq-item.open {
            border-color: rgba(139, 92, 246, 0.3);
        }
        .faq-question {
            padding: 1.2rem 1.5rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            font-size: 1rem;
            transition: color 0.2s;
        }
        .faq-question:hover {
            color: var(--primary-light);
        }
        .faq-question i {
            font-size: 0.9rem;
            color: var(--text-dim);
            transition: transform 0.3s ease;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--primary-light);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            color: var(--text-sub);
            font-size: 0.92rem;
            line-height: 1.8;
            padding: 0 1.5rem;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 1.5rem 1.3rem;
        }
        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            padding: 4rem 3rem;
            text-align: center;
            background: linear-gradient(135deg, rgba(139, 92, 246, 0.2), rgba(10, 10, 20, 0.6)), url('/assets/images/backpic/back-2.png') center/cover;
            border: 1px solid rgba(139, 92, 246, 0.2);
        }
        .cta-section h2 {
            font-size: clamp(1.8rem, 3vw, 2.4rem);
            font-weight: 800;
            margin-bottom: 0.8rem;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1.05rem;
            margin-bottom: 1.8rem;
        }
        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-color);
            padding: 4rem 0 1.5rem;
        }
        .footer-brand {
            font-size: 1.2rem;
            font-weight: 800;
            background: linear-gradient(135deg, #c4b5fd, #8b5cf6);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-links a {
            display: block;
            color: var(--text-sub);
            padding: 6px 0;
            font-size: 0.9rem;
            transition: color 0.2s;
        }
        .footer-links a:hover {
            color: var(--primary-light);
        }
        .footer-bottom {
            border-top: 1px solid var(--border-color);
            margin-top: 3rem;
            padding-top: 1.5rem;
            color: var(--text-dim);
            font-size: 0.85rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
        }
        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .hero {
                min-height: 90vh;
                padding: 100px 0 60px;
            }
            .section {
                padding: 70px 0;
            }
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .hero {
                min-height: 85vh;
                padding: 100px 0 50px;
            }
            .hero h1 {
                font-size: 2.4rem;
            }
            .hero-desc {
                font-size: 1rem;
                padding: 0 1rem;
            }
            .cta-section {
                padding: 3rem 1.8rem;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .section {
                padding: 55px 0;
            }
            .hero h1 {
                font-size: 1.9rem;
            }
            .hero-desc {
                font-size: 0.92rem;
            }
            .btn {
                padding: 0.75rem 1.6rem;
                font-size: 0.9rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .stat-number {
                font-size: 2rem;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0b0f19;
            --bg-secondary: #111827;
            --bg-card: rgba(255, 255, 255, 0.04);
            --border-color: rgba(255, 255, 255, 0.08);
            --text-primary: #f1f5f9;
            --text-sub: #94a3b8;
            --accent: #e8b45a;
            --accent-hover: #d49c3a;
            --accent-glow: rgba(232, 180, 90, 0.25);
            --radius: 16px;
            --radius-sm: 12px;
            --shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
            --shadow-hover: 0 30px 70px rgba(0, 0, 0, 0.55);
            --header-height: 76px;
            --space-section: 96px;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
        }

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

        button,
        input {
            font-family: inherit;
        }

        .container-x {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: var(--space-section) 0;
        }

        .section-alt {
            padding: var(--space-section) 0;
            background: linear-gradient(180deg, rgba(255,255,255,0.02) 0%, transparent 100%);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .section-head {
            max-width: 680px;
            margin-bottom: 48px;
        }

        .section-head .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent);
            background: rgba(232, 180, 90, 0.1);
            border: 1px solid rgba(232, 180, 90, 0.25);
            padding: 6px 16px;
            border-radius: 100px;
            letter-spacing: 1px;
            margin-bottom: 18px;
        }

        .section-head h2 {
            font-size: 2.2rem;
            font-weight: 800;
            margin: 0 0 14px;
            line-height: 1.3;
            letter-spacing: -0.5px;
        }

        .section-head p {
            color: var(--text-sub);
            font-size: 1.05rem;
            margin: 0;
        }

        @media (max-width: 768px) {
            :root {
                --space-section: 64px;
            }
            .section-head h2 {
                font-size: 1.7rem;
            }
        }

        /* ===== Header & Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(11, 15, 25, 0.55);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: background 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease;
        }

        .site-header.scrolled {
            background: rgba(11, 15, 25, 0.95);
            border-color: rgba(255, 255, 255, 0.1);
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
        }

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

        .header-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.28rem;
            font-weight: 800;
            letter-spacing: 0.5px;
            color: var(--text-primary);
            transition: color 0.3s;
        }

        .header-logo:hover {
            color: var(--accent);
        }

        .header-logo i {
            color: var(--accent);
            font-size: 1.4rem;
            filter: drop-shadow(0 0 12px var(--accent-glow));
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
        }

        .nav-link {
            position: relative;
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--text-primary);
            padding: 8px 2px;
            opacity: 0.85;
            transition: opacity 0.3s, color 0.3s;
            letter-spacing: 0.3px;
        }

        .nav-link:hover {
            opacity: 1;
            color: var(--accent);
        }

        .nav-link.active {
            color: var(--accent);
            opacity: 1;
        }

        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: -4px;
            height: 2px;
            background: linear-gradient(90deg, var(--accent), transparent);
            border-radius: 4px;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: linear-gradient(135deg, #e8b45a, #d4943a);
            color: #0b0f19;
            font-weight: 700;
            font-size: 0.95rem;
            padding: 12px 28px;
            border-radius: 12px;
            border: none;
            cursor: pointer;
            transition: transform 0.3s, box-shadow 0.3s, filter 0.3s;
            box-shadow: 0 8px 30px rgba(232, 180, 90, 0.25);
            line-height: 1.4;
        }

        .btn-accent:hover {
            transform: translateY(-3px);
            box-shadow: 0 14px 40px rgba(232, 180, 90, 0.4);
            filter: brightness(1.05);
        }

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

        .btn-sm {
            padding: 10px 22px;
            font-size: 0.9rem;
            border-radius: 10px;
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-color);
            border-radius: 10px;
            color: var(--text-primary);
            font-size: 1.1rem;
            cursor: pointer;
            align-items: center;
            justify-content: center;
            transition: background 0.3s, border-color 0.3s;
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(232, 180, 90, 0.4);
        }

        @media (max-width: 1024px) {
            .nav-links {
                gap: 22px;
            }
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }
            .nav-links {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                flex-direction: column;
                align-items: flex-start;
                padding: 20px 24px 28px;
                gap: 6px;
                background: rgba(11, 15, 25, 0.98);
                border-bottom: 1px solid var(--border-color);
                box-shadow: 0 30px 60px rgba(0, 0, 0, 0.6);
                transform: translateY(-110%);
                transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
                backdrop-filter: blur(20px);
            }
            .nav-links.open {
                transform: translateY(0);
            }
            .nav-link {
                font-size: 1.05rem;
                padding: 14px 4px;
                width: 100%;
                border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            }
            .nav-link:last-child {
                border-bottom: none;
            }
            .header-actions .btn-accent {
                display: none;
            }
        }

        /* ===== Hero ===== */
        .hero-inner {
            position: relative;
            min-height: 72vh;
            display: flex;
            align-items: center;
            padding: 160px 0 80px;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 15, 25, 0.75) 0%, rgba(11, 15, 25, 0.55) 50%, rgba(11, 15, 25, 0.9) 100%);
            z-index: 1;
        }

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

        .hero-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

        .hero-breadcrumb a {
            color: rgba(255, 255, 255, 0.65);
            transition: color 0.3s;
        }

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

        .hero-breadcrumb .sep {
            color: rgba(255, 255, 255, 0.4);
        }

        .hero-inner h1 {
            font-size: 3.4rem;
            font-weight: 900;
            margin: 0 0 18px;
            letter-spacing: -1px;
            line-height: 1.2;
            background: linear-gradient(135deg, #ffffff 20%, #f5d692 70%, var(--accent) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-inner .hero-desc {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 600px;
            margin: 0 0 30px;
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .btn-ghost {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 12px 28px;
            border-radius: 12px;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-color);
            transition: all 0.3s;
        }

        .btn-ghost:hover {
            border-color: rgba(232, 180, 90, 0.5);
            background: rgba(232, 180, 90, 0.08);
            color: var(--accent);
            transform: translateY(-3px);
        }

        @media (max-width: 768px) {
            .hero-inner {
                min-height: 60vh;
                padding: 130px 0 60px;
            }
            .hero-inner h1 {
                font-size: 2.4rem;
            }
            .hero-inner .hero-desc {
                font-size: 1rem;
            }
        }

        @media (max-width: 520px) {
            .hero-inner {
                min-height: 55vh;
            }
            .hero-inner h1 {
                font-size: 2rem;
            }
            .hero-actions .btn-accent,
            .hero-actions .btn-ghost {
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== Category Cards ===== */
        .category-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 32px 28px;
            transition: transform 0.4s, border-color 0.4s, box-shadow 0.4s, background 0.4s;
            position: relative;
            overflow: hidden;
        }

        .category-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), transparent);
            opacity: 0;
            transition: opacity 0.4s;
        }

        .category-card:hover {
            transform: translateY(-8px);
            border-color: rgba(232, 180, 90, 0.35);
            box-shadow: var(--shadow-hover);
            background: rgba(255, 255, 255, 0.06);
        }

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

        .category-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            background: linear-gradient(135deg, rgba(232, 180, 90, 0.2), rgba(232, 180, 90, 0.05));
            border: 1px solid rgba(232, 180, 90, 0.3);
            color: var(--accent);
            margin-bottom: 20px;
        }

        .category-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin: 0 0 12px;
        }

        .category-card p {
            color: var(--text-sub);
            font-size: 0.95rem;
            line-height: 1.7;
            margin: 0 0 18px;
        }

        .category-card .category-link {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap 0.3s;
        }

        .category-card .category-link:hover {
            gap: 10px;
        }

        /* ===== News Cards ===== */
        .news-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            overflow: hidden;
            transition: transform 0.4s, box-shadow 0.4s, border-color 0.4s;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .news-card:hover {
            transform: translateY(-8px);
            border-color: rgba(232, 180, 90, 0.3);
            box-shadow: var(--shadow-hover);
        }

        .news-thumb {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
        }

        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s cubic-bezier(0.3, 0, 0.3, 1);
        }

        .news-card:hover .news-thumb img {
            transform: scale(1.08);
        }

        .news-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 2;
            background: rgba(11, 15, 25, 0.75);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(232, 180, 90, 0.35);
            color: var(--accent);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 100px;
            letter-spacing: 0.5px;
        }

        .news-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .news-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            line-height: 1.5;
            margin: 0 0 12px;
            color: var(--text-primary);
            transition: color 0.3s;
        }

        .news-card:hover .news-body h3 {
            color: var(--accent);
        }

        .news-body p {
            color: var(--text-sub);
            font-size: 0.93rem;
            line-height: 1.7;
            margin: 0 0 20px;
            flex: 1;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.45);
            border-top: 1px solid var(--border-color);
            padding-top: 16px;
        }

        .news-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        @media (max-width: 640px) {
            .news-body {
                padding: 20px;
            }
        }

        /* ===== Ranking ===== */
        .ranking-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .ranking-item {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 20px 0;
            border-bottom: 1px solid var(--border-color);
            transition: background 0.3s;
        }

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

        .ranking-item:hover {
            background: rgba(255, 255, 255, 0.03);
        }

        .ranking-num {
            width: 42px;
            height: 42px;
            flex-shrink: 0;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.05rem;
            font-weight: 800;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-color);
            color: var(--text-sub);
        }

        .ranking-item:nth-child(1) .ranking-num {
            background: linear-gradient(135deg, #f5d692, #e8b45a);
            color: #0b0f19;
            border-color: transparent;
        }

        .ranking-item:nth-child(2) .ranking-num {
            background: linear-gradient(135deg, rgba(255,255,255,0.12), rgba(255,255,255,0.05));
            color: var(--accent);
        }

        .ranking-item:nth-child(3) .ranking-num {
            background: linear-gradient(135deg, rgba(232,180,90,0.2), rgba(232,180,90,0.05));
            color: var(--accent);
        }

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

        .ranking-info h4 {
            font-size: 1rem;
            font-weight: 600;
            margin: 0 0 6px;
            line-height: 1.5;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .ranking-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .text-tiny {
            font-size: 0.78rem;
            color: var(--text-sub);
        }

        .ranking-heat {
            text-align: right;
            flex-shrink: 0;
        }

        .ranking-heat .num {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--text-primary);
        }

        .ranking-heat .label {
            font-size: 0.75rem;
            color: var(--text-sub);
        }

        @media (max-width: 640px) {
            .ranking-item {
                gap: 14px;
            }
            .ranking-heat .num {
                font-size: 1.05rem;
            }
        }

        /* ===== Feature Feature ===== */
        .feature-card {
            position: relative;
            border-radius: 20px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            min-height: 360px;
            display: flex;
            align-items: flex-end;
            transition: transform 0.5s, box-shadow 0.5s;
        }

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

        .feature-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            z-index: 0;
            transition: transform 0.7s;
        }

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

        .feature-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 30%, rgba(11, 15, 25, 0.85) 100%);
            z-index: 1;
        }

        .feature-content {
            position: relative;
            z-index: 2;
            padding: 36px;
            width: 100%;
        }

        .feature-content .badge {
            display: inline-block;
            background: rgba(232, 180, 90, 0.15);
            border: 1px solid rgba(232, 180, 90, 0.3);
            color: var(--accent);
            font-size: 0.8rem;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 100px;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .feature-content h3 {
            font-size: 1.5rem;
            font-weight: 800;
            margin: 0 0 10px;
            line-height: 1.4;
        }

        .feature-content p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.95rem;
            line-height: 1.7;
            margin: 0;
            max-width: 46ch;
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            overflow: hidden;
            transition: border-color 0.3s, background 0.3s;
        }

        .faq-item:hover {
            border-color: rgba(232, 180, 90, 0.3);
        }

        .faq-item summary {
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 24px 28px;
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            transition: color 0.3s;
            user-select: none;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary i {
            font-size: 1.1rem;
            color: var(--accent);
            transition: transform 0.3s;
            flex-shrink: 0;
        }

        .faq-item[open] summary i {
            transform: rotate(45deg);
        }

        .faq-item[open] summary {
            color: var(--accent);
        }

        .faq-answer {
            padding: 0 28px 24px;
            color: var(--text-sub);
            line-height: 1.8;
            border-top: 1px solid var(--border-color);
            padding-top: 18px;
            font-size: 0.95rem;
        }

        /* ===== CTA ===== */
        .cta-section {
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            position: relative;
            padding: 110px 0;
        }

        .cta-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 15, 25, 0.88), rgba(11, 15, 25, 0.72), rgba(11, 15, 25, 0.85));
            z-index: 1;
        }

        .cta-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-size: 2.3rem;
            font-weight: 900;
            margin: 0 0 16px;
            line-height: 1.3;
        }

        .cta-content p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1.05rem;
            margin-bottom: 36px;
        }

        .subscribe-form {
            display: flex;
            max-width: 480px;
            margin: 0 auto;
            gap: 12px;
            flex-wrap: wrap;
        }

        .subscribe-form input {
            flex: 1;
            min-width: 220px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 14px 20px;
            color: var(--text-primary);
            font-size: 0.95rem;
            outline: none;
            transition: border-color 0.3s, background 0.3s;
        }

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

        .subscribe-form input:focus {
            border-color: rgba(232, 180, 90, 0.5);
            background: rgba(255, 255, 255, 0.12);
        }

        @media (max-width: 520px) {
            .cta-section {
                padding: 70px 0;
                background-attachment: scroll;
            }
            .cta-content h2 {
                font-size: 1.8rem;
            }
            .subscribe-form .btn-accent {
                width: 100%;
                justify-content: center;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #070b12;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 70px 0 30px;
        }

        .footer-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--text-primary);
        }

        .footer-brand i {
            color: var(--accent);
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-links a {
            color: var(--text-sub);
            font-size: 0.92rem;
            transition: color 0.3s, padding-left 0.3s;
        }

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

        .footer-bottom {
            margin-top: 56px;
            padding-top: 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.35);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }

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

        @media (max-width: 640px) {
            .site-footer {
                padding: 50px 0 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== Badge ===== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.8rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 100px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-color);
            color: var(--text-sub);
            transition: border-color 0.3s, color 0.3s;
        }

        .badge-accent {
            background: rgba(232, 180, 90, 0.1);
            border-color: rgba(232, 180, 90, 0.3);
            color: var(--accent);
        }

        /* ===== Utility ===== */
        .text-sub {
            color: var(--text-sub);
        }

        .text-accent {
            color: var(--accent);
        }

        .glass-panel {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            backdrop-filter: blur(12px);
        }

        @media (max-width: 768px) {
            .section-head h2 {
                font-size: 1.7rem;
            }
        }

/* roulang page: article */
:root {
            --primary: #6366f1;
            --primary-dark: #4f46e5;
            --primary-light: #818cf8;
            --secondary: #a855f7;
            --secondary-light: #c084fc;
            --accent: #f59e0b;
            --bg: #0a1024;
            --bg-deep: #060a18;
            --bg-soft: #111830;
            --border-color: rgba(255, 255, 255, 0.08);
            --border-light: rgba(255, 255, 255, 0.14);
            --text: #f1f5f9;
            --text-sub: #94a3b8;
            --text-dim: #5b6b85;
            --radius: 18px;
            --radius-sm: 12px;
            --shadow: 0 24px 60px rgba(0, 0, 0, 0.4);
            --shadow-sm: 0 10px 30px rgba(0, 0, 0, 0.25);
            --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.2);
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, sans-serif;
        }

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

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

        body {
            background: var(--bg);
            color: var(--text);
            font-family: var(--font-body);
            line-height: 1.7;
            font-size: 15px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button {
            cursor: pointer;
            font-family: var(--font-body);
            border: none;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

        .container-x {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 768px) {
            .container-x {
                padding: 0 16px;
            }
        }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 18px 0;
            background: transparent;
            transition: var(--transition);
        }

        .site-header.scrolled {
            padding: 10px 0;
            background: rgba(10, 16, 36, 0.78);
            backdrop-filter: blur(22px);
            -webkit-backdrop-filter: blur(22px);
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 10px 35px rgba(0, 0, 0, 0.3);
        }

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

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-weight: 900;
            font-size: 1.18rem;
            letter-spacing: 0.3px;
            flex-shrink: 0;
        }

        .brand-logo:hover {
            opacity: 0.88;
        }

        .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: #fff;
            box-shadow: 0 0 20px rgba(99, 102, 241, 0.45);
            flex-shrink: 0;
        }

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

        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 9px 18px;
            border-radius: 999px;
            color: var(--text-sub);
            font-size: 0.88rem;
            font-weight: 500;
            border: 1px solid transparent;
            transition: var(--transition);
            white-space: nowrap;
        }

        .nav-link:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.06);
            border-color: var(--border-color);
        }

        .nav-link.active {
            color: #fff;
            background: linear-gradient(135deg, rgba(99, 102, 241, 0.22), rgba(168, 85, 247, 0.22));
            border-color: rgba(99, 102, 241, 0.35);
            box-shadow: 0 0 16px rgba(99, 102, 241, 0.15);
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-color);
            color: #fff;
            font-size: 1rem;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: var(--border-light);
        }

        @media (max-width: 768px) {
            .nav-toggle {
                display: flex;
            }
            .nav-links {
                position: fixed;
                top: 68px;
                left: 16px;
                right: 16px;
                flex-direction: column;
                align-items: stretch;
                background: rgba(10, 16, 36, 0.96);
                backdrop-filter: blur(24px);
                -webkit-backdrop-filter: blur(24px);
                border: 1px solid var(--border-color);
                border-radius: 18px;
                padding: 14px;
                gap: 4px;
                margin: 0;
                opacity: 0;
                visibility: hidden;
                transform: translateY(-10px);
                transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
                box-shadow: var(--shadow);
            }
            .nav-links.open {
                opacity: 1;
                visibility: visible;
                transform: translateY(0);
            }
            .nav-link {
                padding: 13px 16px;
                justify-content: center;
                border-radius: 12px;
                font-size: 0.95rem;
            }
        }

        /* ===== 按钮 ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 30px;
            border-radius: 999px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff !important;
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            box-shadow: 0 8px 24px rgba(99, 102, 241, 0.35);
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(99, 102, 241, 0.5);
            opacity: 0.95;
        }

        .btn-primary:active {
            transform: translateY(0) scale(0.98);
        }

        .btn-primary:focus-visible {
            outline: 3px solid rgba(99, 102, 241, 0.5);
            outline-offset: 2px;
        }

        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 30px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.05);
            color: #fff !important;
            font-weight: 600;
            font-size: 0.9rem;
            border: 1px solid var(--border-light);
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.25);
            transform: translateY(-2px);
        }

        .btn-ghost:active {
            transform: translateY(0) scale(0.98);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 0.83rem;
        }

        .btn-full {
            width: 100%;
        }

        /* ===== 文章 Hero ===== */
        .article-hero {
            position: relative;
            padding: 168px 0 88px;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            background-color: var(--bg-deep);
            overflow: hidden;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg,
                    rgba(6, 10, 24, 0.55) 0%,
                    rgba(10, 16, 36, 0.78) 55%,
                    var(--bg) 100%);
        }

        .article-hero::after {
            content: '';
            position: absolute;
            top: -20%;
            right: -10%;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(99, 102, 241, 0.14), transparent 70%);
            pointer-events: none;
        }

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

        .hero-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-sub);
            font-size: 0.82rem;
            margin-bottom: 18px;
        }

        .hero-breadcrumb a {
            color: var(--text-sub);
            transition: var(--transition);
        }

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

        .hero-breadcrumb .sep {
            color: var(--text-dim);
            font-size: 0.7rem;
        }

        .hero-breadcrumb .current {
            color: var(--text);
        }

        .hero-badge-wrap {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            margin-bottom: 18px;
        }

        .cat-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: 999px;
            background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(168, 85, 247, 0.2));
            border: 1px solid rgba(99, 102, 241, 0.3);
            color: var(--primary-light);
            font-size: 0.82rem;
            font-weight: 600;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: 999px;
            background: rgba(245, 158, 11, 0.1);
            border: 1px solid rgba(245, 158, 11, 0.28);
            color: var(--accent);
            font-size: 0.82rem;
            font-weight: 600;
        }

        .hero-title {
            font-size: clamp(1.7rem, 4vw, 2.6rem);
            font-weight: 900;
            line-height: 1.3;
            color: #fff;
            max-width: 860px;
            letter-spacing: 0.5px;
            text-shadow: 0 4px 28px rgba(0, 0, 0, 0.4);
            margin-bottom: 24px;
        }

        .hero-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 20px;
            color: rgba(226, 232, 240, 0.8);
            font-size: 0.85rem;
        }

        .hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }

        .hero-meta i {
            color: var(--primary-light);
            font-size: 0.8rem;
        }

        @media (max-width: 768px) {
            .article-hero {
                padding: 128px 0 52px;
            }
            .hero-meta {
                gap: 14px;
            }
        }

        /* ===== 文章主体 ===== */
        .article-main-wrap {
            padding: 48px 0 0;
        }

        .article-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 340px;
            gap: 40px;
            align-items: start;
        }

        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .article-sidebar {
                display: grid;
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }

        @media (max-width: 640px) {
            .article-sidebar {
                grid-template-columns: 1fr;
            }
        }

        .article-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-color);
            border-radius: 20px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
        }

        .article-cover {
            height: 300px;
            overflow: hidden;
            position: relative;
        }

        .article-cover::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(10, 16, 36, 0.25), transparent 55%);
        }

        .article-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .article-card:hover .article-cover img {
            transform: scale(1.02);
        }

        .article-content {
            padding: 36px 40px 20px;
            font-size: 0.97rem;
            line-height: 2;
            color: rgba(226, 232, 240, 0.88);
            word-wrap: break-word;
        }

        @media (max-width: 768px) {
            .article-cover {
                height: 200px;
            }
            .article-content {
                padding: 24px 20px 12px;
            }
        }

        .article-content h2 {
            font-size: 1.4rem;
            font-weight: 700;
            color: #fff;
            margin: 2em 0 0.8em;
            padding-left: 16px;
            border-left: 4px solid var(--primary);
            line-height: 1.4;
        }

        .article-content h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: #fff;
            margin: 1.6em 0 0.6em;
            line-height: 1.4;
        }

        .article-content p {
            margin-bottom: 1.4em;
        }

        .article-content ul,
        .article-content ol {
            margin: 0 0 1.5em 1.6em;
        }

        .article-content li {
            margin-bottom: 0.5em;
            position: relative;
        }

        .article-content ul li::marker {
            color: var(--primary-light);
        }

        .article-content ol li::marker {
            color: var(--primary-light);
        }

        .article-content blockquote {
            border-left: 4px solid var(--secondary);
            background: rgba(168, 85, 247, 0.07);
            padding: 18px 24px;
            border-radius: 0 14px 14px 0;
            margin: 1.8em 0;
            color: rgba(226, 232, 240, 0.85);
            font-style: normal;
        }

        .article-content a {
            color: var(--primary-light);
            text-decoration: underline;
            text-underline-offset: 4px;
            text-decoration-thickness: 1px;
        }

        .article-content a:hover {
            color: var(--secondary-light);
        }

        .article-content img {
            border-radius: 14px;
            margin: 1.8em auto;
            box-shadow: var(--shadow-sm);
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.8em 0;
            font-size: 0.92rem;
            border-radius: 10px;
            overflow: hidden;
        }

        .article-content table th,
        .article-content table td {
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            text-align: left;
        }

        .article-content table th {
            background: rgba(99, 102, 241, 0.08);
            color: #fff;
            font-weight: 600;
        }

        .article-content code {
            background: rgba(255, 255, 255, 0.07);
            padding: 2px 10px;
            border-radius: 6px;
            font-size: 0.87em;
            color: var(--secondary-light);
            font-family: 'JetBrains Mono', 'Fira Code', monospace;
        }

        /* 标签 */
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            padding: 18px 40px;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        @media (max-width: 768px) {
            .article-tags {
                padding: 16px 20px;
            }
        }

        .tag-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--text-sub);
            font-size: 0.85rem;
            margin-right: 4px;
        }

        .tag-pill {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 5px 14px;
            border-radius: 999px;
            font-size: 0.78rem;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-color);
            color: var(--text-sub);
            transition: var(--transition);
        }

        .tag-pill:hover {
            background: rgba(99, 102, 241, 0.15);
            border-color: rgba(99, 102, 241, 0.35);
            color: #fff;
        }

        /* 分享 */
        .article-share {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            padding: 20px 40px;
        }

        @media (max-width: 768px) {
            .article-share {
                padding: 16px 20px;
            }
        }

        .share-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--text-sub);
            font-size: 0.88rem;
            font-weight: 500;
        }

        .share-icons {
            display: flex;
            gap: 10px;
        }

        .share-icons a {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-sub);
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .share-icons a:hover {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            border-color: transparent;
            transform: translateY(-3px);
            box-shadow: 0 10px 24px rgba(99, 102, 241, 0.35);
        }

        /* ===== 侧边栏 ===== */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .sidebar-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 24px;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            transition: var(--transition);
        }

        .sidebar-card:hover {
            border-color: rgba(255, 255, 255, 0.14);
        }

        .sidebar-title {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 9px;
        }

        .sidebar-title i {
            color: var(--primary-light);
            font-size: 0.9rem;
        }

        .sidebar-links {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .sidebar-links a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 14px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid transparent;
            transition: var(--transition);
            color: var(--text-sub);
            font-size: 0.88rem;
        }

        .sidebar-links a:hover {
            background: rgba(255, 255, 255, 0.07);
            border-color: rgba(99, 102, 241, 0.3);
            color: #fff;
            transform: translateX(5px);
        }

        .sidebar-link-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, rgba(99, 102, 241, 0.18), rgba(168, 85, 247, 0.18));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.82rem;
            color: var(--primary-light);
            flex-shrink: 0;
        }

        .sidebar-highlight {
            background: linear-gradient(145deg, rgba(99, 102, 241, 0.08), rgba(168, 85, 247, 0.05));
            border-color: rgba(99, 102, 241, 0.18);
        }

        .sidebar-cta {
            position: relative;
            background: linear-gradient(145deg, rgba(99, 102, 241, 0.12), rgba(168, 85, 247, 0.08));
            border-color: rgba(99, 102, 241, 0.25);
            overflow: hidden;
        }

        .sidebar-cta::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 140px;
            height: 140px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(99, 102, 241, 0.25), transparent 70%);
            pointer-events: none;
        }

        /* ===== 内容未找到 ===== */
        .not-found {
            text-align: center;
            padding: 90px 30px;
        }

        .not-found-icon {
            width: 70px;
            height: 70px;
            border-radius: 50%;
            background: rgba(99, 102, 241, 0.1);
            border: 1px solid rgba(99, 102, 241, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 26px;
            font-size: 1.6rem;
            color: var(--primary-light);
            box-shadow: var(--shadow-glow);
        }

        .not-found h2 {
            color: #fff;
            font-size: 1.5rem;
            font-weight: 800;
            margin-bottom: 14px;
        }

        .not-found p {
            color: var(--text-sub);
            margin-bottom: 28px;
            font-size: 0.95rem;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 88px 0 72px;
            border-top: 1px solid var(--border-color);
            background: rgba(255, 255, 255, 0.015);
        }

        .section-header {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 52px;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 18px;
            border-radius: 999px;
            background: rgba(99, 102, 241, 0.12);
            border: 1px solid rgba(99, 102, 241, 0.28);
            color: var(--primary-light);
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.5px;
        }

        .section-title {
            font-size: clamp(1.5rem, 3vw, 2rem);
            font-weight: 800;
            color: #fff;
            margin-top: 16px;
            line-height: 1.35;
            letter-spacing: 0.3px;
        }

        .section-sub {
            color: var(--text-sub);
            margin-top: 12px;
            font-size: 0.93rem;
        }

        .faq-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            max-width: 1000px;
            margin: 0 auto;
        }

        @media (max-width: 768px) {
            .faq-grid {
                grid-template-columns: 1fr;
            }
        }

        .faq-item {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid var(--border-color);
            border-radius: 14px;
            padding: 24px;
            transition: var(--transition);
            cursor: pointer;
        }

        .faq-item:hover {
            background: rgba(255, 255, 255, 0.05);
            border-color: rgba(99, 102, 241, 0.3);
            transform: translateY(-3px);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 14px;
            color: #fff;
            font-weight: 600;
            font-size: 0.94rem;
        }

        .faq-question i {
            color: var(--primary-light);
            font-size: 0.75rem;
            flex-shrink: 0;
            transition: transform 0.3s ease;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, margin 0.35s ease;
            color: var(--text-sub);
            font-size: 0.88rem;
            line-height: 1.85;
        }

        .faq-answer p {
            padding-top: 12px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 72px 0;
        }

        .cta-card {
            position: relative;
            border-radius: 24px;
            padding: 64px 40px;
            background: linear-gradient(135deg, rgba(99, 102, 241, 0.12), rgba(168, 85, 247, 0.12));
            border: 1px solid rgba(99, 102, 241, 0.22);
            overflow: hidden;
            text-align: center;
        }

        .cta-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.14;
        }

        .cta-card::before {
            content: '';
            position: absolute;
            top: -80px;
            left: 50%;
            transform: translateX(-50%);
            width: 400px;
            height: 200px;
            background: radial-gradient(ellipse, rgba(99, 102, 241, 0.15), transparent 70%);
            pointer-events: none;
        }

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

        .cta-badge {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 6px 18px;
            border-radius: 999px;
            background: rgba(245, 158, 11, 0.12);
            border: 1px solid rgba(245, 158, 11, 0.3);
            color: var(--accent);
            font-size: 0.83rem;
            font-weight: 600;
        }

        .cta-title {
            color: #fff;
            font-size: clamp(1.4rem, 3vw, 2rem);
            font-weight: 800;
            margin-top: 18px;
            line-height: 1.35;
        }

        .cta-desc {
            color: var(--text-sub);
            margin-top: 12px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
            font-size: 0.95rem;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 14px;
            margin-top: 30px;
        }

        @media (max-width: 640px) {
            .cta-card {
                padding: 44px 20px;
                border-radius: 18px;
            }
            .cta-actions {
                flex-direction: column;
            }
            .cta-actions .btn-primary,
            .cta-actions .btn-ghost {
                width: 100%;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid var(--border-color);
            padding: 64px 0 0;
        }

        .footer-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 1.18rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.3px;
        }

        .footer-brand i {
            color: var(--primary);
            font-size: 1.2rem;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--text-sub);
            font-size: 0.88rem;
            transition: var(--transition);
        }

        .footer-links a::before {
            content: '';
            width: 5px;
            height: 5px;
            border-radius: 50%;
            background: var(--primary);
            opacity: 0.5;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: #fff;
            transform: translateX(4px);
        }

        .footer-links a:hover::before {
            opacity: 1;
            box-shadow: 0 0 8px var(--primary);
        }

        .footer-tag-pill {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 999px;
            font-size: 0.77rem;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-color);
            color: var(--text-sub);
            transition: var(--transition);
            cursor: default;
        }

        .footer-tag-pill:hover {
            background: rgba(99, 102, 241, 0.12);
            border-color: rgba(99, 102, 241, 0.3);
            color: #fff;
        }

        .footer-social a {
            transition: all 0.3s ease !important;
        }

        .footer-social a:hover {
            background: linear-gradient(135deg, var(--primary), var(--secondary)) !important;
            color: #fff !important;
            border-color: transparent !important;
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(99, 102, 241, 0.3);
        }

        .footer-bottom {
            margin-top: 52px;
            padding: 20px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            color: var(--text-dim);
            font-size: 0.82rem;
        }

        @media (max-width: 640px) {
            .footer-bottom {
                justify-content: center;
                text-align: center;
            }
        }

        /* ===== 动效 ===== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(28px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .animate-fade-up {
            animation: fadeInUp 0.7s ease both;
        }

        .delay-1 {
            animation-delay: 0.1s;
        }
        .delay-2 {
            animation-delay: 0.2s;
        }
        .delay-3 {
            animation-delay: 0.3s;
        }

        /* ===== 滚动条 ===== */
        ::-webkit-scrollbar {
            width: 10px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-deep);
        }
        ::-webkit-scrollbar-thumb {
            background: rgba(148, 163, 184, 0.25);
            border-radius: 10px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: rgba(148, 163, 184, 0.4);
        }

        ::selection {
            background: rgba(99, 102, 241, 0.4);
            color: #fff;
        }

        /* ===== 打印 ===== */
        @media print {
            .site-header,
            .article-sidebar,
            .cta-section,
            .site-footer,
            .article-share {
                display: none !important;
            }
            .article-hero {
                padding: 30px 0;
                background: none !important;
            }
            .article-hero::before {
                background: none !important;
            }
            body {
                background: #fff;
                color: #222;
            }
            .article-card {
                border: none;
                box-shadow: none;
                background: none;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #0b0f19;
            --bg-secondary: #121a2b;
            --bg-card: rgba(255, 255, 255, 0.04);
            --bg-card-hover: rgba(255, 255, 255, 0.08);
            --brand-primary: #6d7cff;
            --brand-accent: #9d7bff;
            --brand-glow: rgba(109, 124, 255, 0.35);
            --accent-warm: #ffb86b;
            --text-primary: #f1f5f9;
            --text-secondary: #9aa7c0;
            --text-sub: #64748b;
            --border-color: rgba(255, 255, 255, 0.08);
            --radius: 18px;
            --radius-sm: 12px;
            --shadow: 0 12px 36px -12px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 32px rgba(109, 124, 255, 0.2);
            --transition: all 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        .container-x {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* 顶部导航 */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 14px 0;
            background: rgba(11, 15, 25, 0.52);
            backdrop-filter: blur(22px);
            -webkit-backdrop-filter: blur(22px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition);
        }

        .site-header.scrolled {
            padding: 10px 0;
            background: rgba(11, 15, 25, 0.94);
            box-shadow: 0 10px 40px -12px rgba(0, 0, 0, 0.6);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 1.45rem;
            font-weight: 800;
            letter-spacing: 0.01em;
            background: linear-gradient(135deg, #e0e7ff, #c4b5fd, #a5b4fc);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            white-space: nowrap;
        }

        .brand-logo i {
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-accent));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            font-size: 1.3rem;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-link {
            position: relative;
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
        }

        .nav-link:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
        }

        .nav-link.active {
            color: #fff;
            background: linear-gradient(135deg, rgba(109, 124, 255, 0.25), rgba(157, 123, 255, 0.2));
            box-shadow: 0 0 20px rgba(109, 124, 255, 0.15);
            border: 1px solid rgba(109, 124, 255, 0.3);
        }

        .header-right {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .header-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-color);
            border-radius: 999px;
            padding: 6px 16px 6px 6px;
            transition: var(--transition);
        }

        .header-search input {
            background: transparent;
            border: none;
            outline: none;
            color: var(--text-primary);
            font-size: 0.85rem;
            width: 140px;
        }

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

        .header-search span {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 30px;
            height: 30px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-accent));
            color: #fff;
            font-size: 0.75rem;
        }

        .mobile-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            border: 1px solid var(--border-color);
            background: rgba(255, 255, 255, 0.06);
            align-items: center;
            justify-content: center;
            color: var(--text-primary);
            font-size: 1.1rem;
        }

        .mobile-nav {
            display: none;
            position: fixed;
            top: 64px;
            left: 16px;
            right: 16px;
            z-index: 999;
            background: rgba(11, 15, 25, 0.96);
            backdrop-filter: blur(24px);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 20px;
            flex-direction: column;
            gap: 8px;
            box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
        }

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

        .mobile-nav .nav-link {
            padding: 12px 18px;
            border-radius: 12px;
            font-size: 0.95rem;
        }

        /* 分类页头部 */
        .category-hero {
            position: relative;
            padding: 160px 0 80px;
            background: linear-gradient(135deg, rgba(11, 15, 25, 0.86), rgba(20, 12, 42, 0.92)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            border-bottom: 1px solid var(--border-color);
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(ellipse at 30% 30%, rgba(109, 124, 255, 0.15), transparent 60%);
            pointer-events: none;
        }

        .category-hero-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 800px;
            margin: 0 auto;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            border-radius: 999px;
            background: linear-gradient(135deg, rgba(109, 124, 255, 0.2), rgba(157, 123, 255, 0.15));
            border: 1px solid rgba(109, 124, 255, 0.3);
            font-size: 0.82rem;
            color: #c7d2fe;
            font-weight: 500;
            margin-bottom: 20px;
        }

        .category-hero h1 {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.25;
            letter-spacing: -0.02em;
            margin: 0 0 16px;
            background: linear-gradient(135deg, #f0f2ff, #c4b5fd);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .category-hero p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 620px;
            margin: 0 auto;
        }

        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 40px;
            margin-top: 36px;
            flex-wrap: wrap;
        }

        .hero-stat {
            text-align: center;
        }

        .hero-stat strong {
            display: block;
            font-size: 1.75rem;
            font-weight: 800;
            background: linear-gradient(135deg, #e0e7ff, #a5b4fc);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-stat span {
            font-size: 0.85rem;
            color: var(--text-sub);
        }

        /* 通用板块 */
        .section-pad {
            padding: 80px 0;
        }

        .section-pad-sm {
            padding: 50px 0;
        }

        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            margin-bottom: 40px;
        }

        .section-head h2 {
            font-size: 1.7rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            margin: 0;
        }

        .section-head h2 i {
            color: var(--brand-primary);
            margin-right: 8px;
            font-size: 1.3rem;
        }

        .section-head p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            margin: 6px 0 0;
        }

        .section-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 999px;
            border: 1px solid var(--border-color);
            color: var(--text-secondary);
            font-size: 0.85rem;
            transition: var(--transition);
        }

        .section-more:hover {
            color: #fff;
            border-color: rgba(109, 124, 255, 0.4);
            background: rgba(109, 124, 255, 0.1);
        }

        /* 标签筛选 */
        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-bottom: 48px;
        }

        .filter-tag {
            padding: 8px 20px;
            border-radius: 999px;
            border: 1px solid var(--border-color);
            background: rgba(255, 255, 255, 0.04);
            color: var(--text-secondary);
            font-size: 0.88rem;
            transition: var(--transition);
        }

        .filter-tag:hover,
        .filter-tag.active {
            background: linear-gradient(135deg, rgba(109, 124, 255, 0.25), rgba(157, 123, 255, 0.2));
            border-color: rgba(109, 124, 255, 0.35);
            color: #fff;
        }

        /* 攻略卡片 */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .guide-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
            position: relative;
        }

        .guide-card:hover {
            background: var(--bg-card-hover);
            border-color: rgba(109, 124, 255, 0.3);
            transform: translateY(-4px);
            box-shadow: var(--shadow);
        }

        .guide-card-cover {
            position: relative;
            height: 180px;
            overflow: hidden;
        }

        .guide-card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .guide-card:hover .guide-card-cover img {
            transform: scale(1.05);
        }

        .guide-card-cover .cover-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(11, 15, 25, 0.9));
        }

        .guide-card .tag-float {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 2;
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 500;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-accent));
            color: #fff;
            box-shadow: 0 4px 16px rgba(109, 124, 255, 0.35);
        }

        .guide-card-body {
            padding: 20px;
        }

        .guide-card-body h3 {
            font-size: 1.05rem;
            font-weight: 600;
            line-height: 1.5;
            margin: 0 0 8px;
            color: var(--text-primary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .guide-card-body p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            margin: 0 0 14px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .guide-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 14px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 0.8rem;
            color: var(--text-sub);
        }

        .guide-card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        /* 排行榜 */
        .rank-section {
            background: linear-gradient(135deg, rgba(18, 26, 43, 0.97), rgba(20, 14, 40, 0.97)), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .rank-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .rank-item {
            display: flex;
            align-items: center;
            gap: 18px;
            padding: 18px 22px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }

        .rank-item:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(109, 124, 255, 0.3);
            transform: translateX(6px);
        }

        .rank-index {
            font-size: 1.4rem;
            font-weight: 800;
            min-width: 44px;
            text-align: center;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-accent));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            font-style: italic;
        }

        .rank-index.top-1 {
            font-size: 1.8rem;
            background: linear-gradient(135deg, #ffd700, #ffb86b);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .rank-index.top-2 {
            font-size: 1.6rem;
            background: linear-gradient(135deg, #c0c8d8, #8b95a9);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .rank-index.top-3 {
            font-size: 1.5rem;
            background: linear-gradient(135deg, #d4a056, #a06a3a);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

        .rank-content h3 {
            font-size: 0.98rem;
            font-weight: 600;
            margin: 0 0 4px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .rank-content .rank-tags {
            display: flex;
            gap: 8px;
            font-size: 0.78rem;
            color: var(--text-sub);
        }

        .rank-heat {
            text-align: right;
            font-size: 0.85rem;
            color: var(--text-sub);
            white-space: nowrap;
        }

        .rank-heat i {
            color: #ff6048;
            margin-right: 4px;
        }

        /* 新手步骤 */
        .step-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .step-card {
            position: relative;
            padding: 36px 26px 28px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            text-align: center;
            transition: var(--transition);
        }

        .step-card:hover {
            border-color: rgba(109, 124, 255, 0.3);
            transform: translateY(-4px);
            box-shadow: var(--shadow-glow);
        }

        .step-num {
            position: absolute;
            top: -16px;
            left: 50%;
            transform: translateX(-50%);
            width: 36px;
            height: 36px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.95rem;
            color: #fff;
            box-shadow: 0 6px 20px rgba(109, 124, 255, 0.4);
        }

        .step-card i {
            font-size: 1.8rem;
            color: var(--brand-primary);
            margin-bottom: 14px;
        }

        .step-card h3 {
            font-size: 1rem;
            font-weight: 600;
            margin: 0 0 8px;
        }

        .step-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            margin: 0;
        }

        /* 社区攻略 */
        .community-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 24px;
        }

        .community-card {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border-color);
            min-height: 260px;
            display: flex;
            align-items: flex-end;
            transition: var(--transition);
        }

        .community-card:hover {
            border-color: rgba(109, 124, 255, 0.35);
            box-shadow: var(--shadow);
            transform: translateY(-3px);
        }

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

        .community-card .grad {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 30%, rgba(11, 15, 25, 0.96));
        }

        .community-card .content {
            position: relative;
            z-index: 2;
            padding: 24px;
        }

        .community-card .content h3 {
            font-size: 1.05rem;
            font-weight: 600;
            margin: 0 0 6px;
        }

        .community-card .content p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            margin: 0;
        }

        .community-author {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-top: 12px;
            font-size: 0.82rem;
            color: var(--text-sub);
        }

        .community-author .avatar {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            color: #fff;
            font-weight: 700;
        }

        /* FAQ */
        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item.open {
            border-color: rgba(109, 124, 255, 0.3);
            background: rgba(109, 124, 255, 0.04);
        }

        .faq-q {
            padding: 18px 22px;
            font-size: 0.96rem;
            font-weight: 500;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
        }

        .faq-q i {
            color: var(--text-sub);
            transition: transform 0.3s;
            font-size: 0.85rem;
        }

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

        .faq-a {
            padding: 0 22px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.8;
        }

        .faq-item.open .faq-a {
            max-height: 300px;
            padding: 0 22px 20px;
        }

        /* CTA */
        .cta-section {
            position: relative;
            padding: 60px 0;
            background: linear-gradient(135deg, rgba(109, 124, 255, 0.12), rgba(157, 123, 255, 0.08));
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            text-align: center;
        }

        .cta-section h2 {
            font-size: 1.6rem;
            font-weight: 700;
            margin: 0 0 12px;
        }

        .cta-section p {
            color: var(--text-secondary);
            max-width: 540px;
            margin: 0 auto 28px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: 999px;
            font-size: 0.92rem;
            font-weight: 600;
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--brand-primary), var(--brand-accent));
            color: #fff;
            box-shadow: 0 8px 24px rgba(109, 124, 255, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(109, 124, 255, 0.45);
        }

        .btn-outline {
            border-color: var(--border-color);
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.04);
        }

        .btn-outline:hover {
            border-color: rgba(109, 124, 255, 0.4);
            background: rgba(109, 124, 255, 0.1);
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 0.82rem;
        }

        /* 页脚 */
        .site-footer {
            background: #080c15;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding: 60px 0 0;
        }

        .footer-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            background: linear-gradient(135deg, #e0e7ff, #a5b4fc);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .footer-brand i {
            color: var(--brand-primary);
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            color: var(--text-secondary);
            font-size: 0.88rem;
            transition: var(--transition);
        }

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

        .footer-bottom {
            margin-top: 48px;
            padding: 20px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            text-align: center;
            font-size: 0.82rem;
            color: var(--text-sub);
        }

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

        /* 响应式 */
        @media (max-width: 1024px) {
            .guide-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .step-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .community-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .category-hero {
                padding: 130px 0 60px;
            }
            .category-hero h1 {
                font-size: 2.2rem;
            }
            .nav-links,
            .header-search {
                display: none;
            }
            .mobile-toggle {
                display: inline-flex;
            }
            .guide-grid {
                grid-template-columns: 1fr;
            }
            .step-grid {
                grid-template-columns: 1fr;
            }
            .section-head {
                flex-direction: column;
                align-items: flex-start;
            }
            .rank-item {
                padding: 14px 16px;
                flex-wrap: wrap;
            }
            .rank-heat {
                width: 100%;
                text-align: left;
                padding-left: 62px;
            }
            .section-pad {
                padding: 56px 0;
            }
            .hero-stats {
                gap: 24px;
            }
            .hero-stat strong {
                font-size: 1.3rem;
            }
        }

        @media (max-width: 520px) {
            .container-x {
                padding-left: 16px;
                padding-right: 16px;
            }
            .category-hero h1 {
                font-size: 1.7rem;
            }
            .footer-bottom {
                line-height: 1.8;
            }
            .community-card {
                min-height: 220px;
            }
            .filter-tag {
                padding: 6px 14px;
                font-size: 0.8rem;
            }
        }