/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #FF6B35;
            --primary-dark: #E55A2B;
            --primary-light: #FF8A5C;
            --secondary: #1A1A2E;
            --secondary-light: #2D2D4A;
            --accent: #FFD700;
            --bg-dark: #0F0F1A;
            --bg-card: #1A1A2E;
            --bg-card-hover: #252545;
            --bg-section: #14142A;
            --text-white: #FFFFFF;
            --text-light: #E0E0E8;
            --text-muted: #9090A8;
            --border-color: #2A2A4A;
            --border-hover: #3A3A5A;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
            --shadow-md: 0 8px 32px rgba(0,0,0,0.4);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.5);
            --shadow-glow: 0 0 30px rgba(255,107,53,0.15);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --space-xs: 8px;
            --space-sm: 16px;
            --space-md: 24px;
            --space-lg: 48px;
            --space-xl: 80px;
            --container-max: 1200px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            background: var(--bg-dark);
            color: var(--text-light);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
        }
        a { color: inherit; text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea { font-family: inherit; font-size: inherit; border: none; outline: none; }
        button { cursor: pointer; background: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { color: var(--text-white); line-height: 1.3; font-weight: 700; }

        /* ===== Container ===== */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--space-md);
        }

        /* ===== Header / Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(15, 15, 26, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(42, 42, 74, 0.4);
            transition: var(--transition);
        }
        .site-header.scrolled {
            background: rgba(15, 15, 26, 0.98);
            box-shadow: var(--shadow-md);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 var(--space-md);
        }
        .logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: var(--space-xs);
        }
        .logo span { color: var(--primary); }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: #fff;
            font-weight: 900;
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: var(--space-md);
        }
        .nav-list a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-muted);
            padding: 8px 4px;
            position: relative;
            transition: var(--transition);
        }
        .nav-list a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: var(--transition);
        }
        .nav-list a:hover { color: var(--text-white); }
        .nav-list a:hover::after { width: 100%; }
        .nav-list a.active { color: var(--text-white); }
        .nav-list a.active::after { width: 100%; }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff !important;
            padding: 10px 28px !important;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            box-shadow: 0 4px 20px rgba(255, 107, 53, 0.3);
            transition: var(--transition);
        }
        .nav-cta::after { display: none !important; }
        .nav-cta:hover {
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            box-shadow: 0 6px 30px rgba(255, 107, 53, 0.45);
            transform: translateY(-2px);
            color: #fff !important;
        }
        .nav-cta i { font-size: 1rem; }

        /* Mobile toggle */
        .mobile-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 4px;
            cursor: pointer;
            background: none;
            border: none;
        }
        .mobile-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-white);
            border-radius: 4px;
            transition: var(--transition);
        }
        .mobile-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
        .mobile-toggle.active span:nth-child(2) { opacity: 0; }
        .mobile-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 120px 0 80px;
            overflow: hidden;
            background: var(--bg-dark);
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.3;
            z-index: 0;
        }
        .hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15,15,26,0.85) 0%, rgba(15,15,26,0.6) 50%, rgba(15,15,26,0.95) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 840px;
            padding: 0 var(--space-md);
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 107, 53, 0.15);
            border: 1px solid rgba(255, 107, 53, 0.25);
            color: var(--primary);
            padding: 6px 20px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: var(--space-md);
            letter-spacing: 0.5px;
        }
        .hero-tag i { font-size: 0.9rem; }
        .hero h1 {
            font-size: clamp(2.6rem, 6vw, 4.8rem);
            font-weight: 900;
            line-height: 1.1;
            margin-bottom: var(--space-md);
            letter-spacing: -1px;
            background: linear-gradient(135deg, var(--text-white) 40%, var(--primary-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: clamp(1.05rem, 1.8vw, 1.3rem);
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto var(--space-lg);
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: var(--space-sm);
            justify-content: center;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            padding: 16px 40px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.05rem;
            box-shadow: 0 8px 32px rgba(255, 107, 53, 0.3);
            transition: var(--transition);
            border: none;
        }
        .btn-primary:hover {
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            box-shadow: 0 12px 40px rgba(255, 107, 53, 0.45);
            transform: translateY(-3px);
            color: #fff;
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: transparent;
            color: var(--text-white);
            padding: 16px 36px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1.05rem;
            border: 2px solid var(--border-color);
            transition: var(--transition);
        }
        .btn-secondary:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(255, 107, 53, 0.08);
            transform: translateY(-3px);
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: var(--space-lg);
            justify-content: center;
            margin-top: var(--space-xl);
        }
        .hero-stat-item {
            text-align: center;
        }
        .hero-stat-item .num {
            font-size: 2.4rem;
            font-weight: 900;
            color: var(--text-white);
            line-height: 1.2;
        }
        .hero-stat-item .num span { color: var(--primary); }
        .hero-stat-item .label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ===== Sections ===== */
        .section {
            padding: var(--space-xl) 0;
        }
        .section-dark {
            background: var(--bg-section);
        }
        .section-title {
            text-align: center;
            margin-bottom: var(--space-lg);
        }
        .section-title h2 {
            font-size: clamp(1.8rem, 3vw, 2.6rem);
            font-weight: 800;
            margin-bottom: var(--space-xs);
        }
        .section-title p {
            color: var(--text-muted);
            font-size: 1.05rem;
            max-width: 560px;
            margin: 0 auto;
        }
        .section-title .title-accent {
            display: inline-block;
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 4px;
            margin-top: var(--space-sm);
        }

        /* ===== Features ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: var(--space-md);
        }
        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: var(--space-md) var(--space-md) var(--space-lg);
            transition: var(--transition);
            text-align: center;
        }
        .feature-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-hover);
            transform: translateY(-6px);
            box-shadow: var(--shadow-glow);
        }
        .feature-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto var(--space-sm);
            background: linear-gradient(135deg, rgba(255,107,53,0.15), rgba(255,215,0,0.1));
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            color: var(--primary);
        }
        .feature-card h3 {
            font-size: 1.2rem;
            margin-bottom: var(--space-xs);
        }
        .feature-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* ===== Categories ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: var(--space-md);
        }
        .category-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            aspect-ratio: 16 / 10;
            display: flex;
            align-items: flex-end;
            padding: var(--space-md);
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            cursor: pointer;
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-glow);
            border-color: var(--primary);
        }
        .category-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.5;
            transition: var(--transition);
        }
        .category-card:hover img { opacity: 0.7; transform: scale(1.05); }
        .category-card .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(15,15,26,0.9) 0%, rgba(15,15,26,0.2) 100%);
        }
        .category-card .content {
            position: relative;
            z-index: 1;
        }
        .category-card .content h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .category-card .content p {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        .category-card .badge {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 2px 12px;
            border-radius: 50px;
            margin-top: var(--space-xs);
        }

        /* ===== Latest Posts (CMS) ===== */
        .posts-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: var(--space-md);
        }
        .post-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }
        .post-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-hover);
            transform: translateY(-6px);
            box-shadow: var(--shadow-glow);
        }
        .post-card .thumb {
            width: 100%;
            aspect-ratio: 16 / 9;
            background: var(--secondary-light);
            position: relative;
            overflow: hidden;
        }
        .post-card .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .post-card:hover .thumb img { transform: scale(1.05); }
        .post-card .thumb .cat-tag {
            position: absolute;
            top: var(--space-xs);
            left: var(--space-xs);
            background: var(--primary);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 2px 14px;
            border-radius: 50px;
        }
        .post-card .body {
            padding: var(--space-sm) var(--space-md) var(--space-md);
        }
        .post-card .body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: var(--space-xs);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .post-card .body p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: var(--space-xs);
        }
        .post-card .body .meta {
            display: flex;
            align-items: center;
            gap: var(--space-sm);
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .post-card .body .meta i { margin-right: 4px; }
        .post-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: var(--space-xl) var(--space-md);
            color: var(--text-muted);
            background: var(--bg-card);
            border: 1px dashed var(--border-color);
            border-radius: var(--radius-md);
        }
        .post-empty i { font-size: 2.4rem; margin-bottom: var(--space-sm); opacity: 0.5; }

        /* ===== Stats / Data ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: var(--space-md);
        }
        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: var(--space-md) var(--space-sm);
            text-align: center;
            transition: var(--transition);
        }
        .stat-card:hover {
            border-color: var(--primary);
            transform: translateY(-4px);
            box-shadow: var(--shadow-glow);
        }
        .stat-card .num {
            font-size: 2.8rem;
            font-weight: 900;
            color: var(--text-white);
            line-height: 1.2;
        }
        .stat-card .num span { color: var(--primary); }
        .stat-card .label {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-top: var(--space-xs);
        }

        /* ===== Advantages (图文) ===== */
        .advantage-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--space-lg);
            align-items: center;
        }
        .advantage-row.reverse { direction: rtl; }
        .advantage-row.reverse > * { direction: ltr; }
        .advantage-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            aspect-ratio: 4 / 3;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
        }
        .advantage-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .advantage-image:hover img { transform: scale(1.03); }
        .advantage-text h3 {
            font-size: 1.6rem;
            margin-bottom: var(--space-sm);
        }
        .advantage-text ul {
            margin-top: var(--space-sm);
        }
        .advantage-text ul li {
            display: flex;
            align-items: flex-start;
            gap: var(--space-xs);
            margin-bottom: var(--space-xs);
            color: var(--text-muted);
            font-size: 0.95rem;
        }
        .advantage-text ul li i {
            color: var(--primary);
            margin-top: 4px;
            flex-shrink: 0;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: var(--space-sm);
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--border-hover); }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: var(--space-sm) var(--space-md);
            cursor: pointer;
            font-weight: 600;
            color: var(--text-white);
            font-size: 1.05rem;
            transition: var(--transition);
            user-select: none;
        }
        .faq-question:hover { color: var(--primary); }
        .faq-question i {
            transition: var(--transition);
            color: var(--text-muted);
            font-size: 1.1rem;
        }
        .faq-item.open .faq-question i { transform: rotate(180deg); color: var(--primary); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 var(--space-md);
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 var(--space-md) var(--space-md);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--secondary) 0%, var(--bg-dark) 100%);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: var(--space-lg) var(--space-md);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.06;
        }
        .cta-section .content {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: clamp(1.6rem, 2.8vw, 2.4rem);
            margin-bottom: var(--space-xs);
        }
        .cta-section p {
            color: var(--text-muted);
            max-width: 560px;
            margin: 0 auto var(--space-md);
            font-size: 1.05rem;
        }
        .cta-section .btn-primary { font-size: 1.1rem; padding: 18px 48px; }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--secondary);
            border-top: 1px solid var(--border-color);
            padding: var(--space-lg) 0 var(--space-md);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: var(--space-lg);
            margin-bottom: var(--space-lg);
        }
        .footer-brand .logo { font-size: 1.4rem; margin-bottom: var(--space-sm); }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
            max-width: 360px;
            line-height: 1.8;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: var(--space-sm);
            color: var(--text-white);
        }
        .footer-col ul li { margin-bottom: var(--space-xs); }
        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-col ul li a:hover { color: var(--primary); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: var(--space-md);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: var(--space-sm);
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .footer-bottom a { color: var(--text-muted); }
        .footer-bottom a:hover { color: var(--primary); }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .advantage-row { grid-template-columns: 1fr; }
            .advantage-row.reverse { direction: ltr; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .nav-list {
                position: fixed;
                top: 72px;
                left: 0;
                width: 100%;
                background: rgba(15,15,26,0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: var(--space-md);
                gap: var(--space-sm);
                transform: translateY(-120%);
                opacity: 0;
                transition: var(--transition);
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-md);
            }
            .nav-list.open {
                transform: translateY(0);
                opacity: 1;
            }
            .nav-list a { font-size: 1.1rem; padding: 12px 0; width: 100%; }
            .nav-cta { width: 100%; justify-content: center; margin-top: var(--space-xs); }
            .mobile-toggle { display: flex; }
            .hero { min-height: 80vh; padding: 100px 0 60px; }
            .hero-stats { gap: var(--space-md); }
            .hero-stat-item .num { font-size: 1.8rem; }
            .section { padding: var(--space-lg) 0; }
            .features-grid { grid-template-columns: 1fr; }
            .category-grid { grid-template-columns: 1fr 1fr; }
            .posts-grid { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: 1fr 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: var(--space-md); }
            .footer-bottom { flex-direction: column; text-align: center; }
        }
        @media (max-width: 520px) {
            .category-grid { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: 1fr; }
            .hero h1 { font-size: 2rem; }
            .hero p { font-size: 0.95rem; }
            .btn-primary, .btn-secondary { width: 100%; justify-content: center; }
            .hero-actions { flex-direction: column; }
            .header-inner { height: 64px; }
            .logo { font-size: 1.3rem; }
            .logo-icon { width: 30px; height: 30px; font-size: 1rem; }
            .nav-list { top: 64px; }
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar { width: 8px; }
        ::-webkit-scrollbar-track { background: var(--bg-dark); }
        ::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 4px; }
        ::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

        /* ===== Animations ===== */
        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(30px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .animate-in {
            animation: fadeInUp 0.6s ease forwards;
        }
        .delay-1 { animation-delay: 0.1s; }
        .delay-2 { animation-delay: 0.2s; }
        .delay-3 { animation-delay: 0.3s; }
        .delay-4 { animation-delay: 0.4s; }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #e53e3e;
            --primary-dark: #c53030;
            --primary-light: #feb2b2;
            --secondary: #2d3748;
            --accent: #f6ad55;
            --bg-dark: #0f0f1a;
            --bg-card: #1a1a2e;
            --bg-section: #16213e;
            --bg-warm: #1e1e32;
            --text-light: #f7fafc;
            --text-muted: #a0aec0;
            --text-body: #e2e8f0;
            --border-color: #2d3748;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
            --shadow-md: 0 8px 24px rgba(0,0,0,0.4);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.5);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --container-max: 1200px;
            --header-h: 72px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-sans);
            background: var(--bg-dark);
            color: var(--text-body);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        a { color: var(--accent); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-light); }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { list-style: none; }
        button, input, textarea { font-family: inherit; font-size: 1rem; }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed;
            top: 0; left: 0; right: 0;
            height: var(--header-h);
            background: rgba(15,15,26,0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
            transition: var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: -0.5px;
        }
        .logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px; height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--radius-sm);
            color: #fff;
            font-size: 1.2rem;
            font-weight: 700;
        }
        .logo span { color: var(--accent); }
        .logo:hover { color: var(--text-light); }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-muted);
            transition: var(--transition);
            position: relative;
        }
        .nav-list a:hover { color: var(--text-light); background: rgba(255,255,255,0.06); }
        .nav-list a.active {
            color: var(--text-light);
            background: rgba(229,62,62,0.15);
        }
        .nav-list a.active::after {
            content: '';
            position: absolute;
            bottom: 2px; left: 50%;
            transform: translateX(-50%);
            width: 20px; height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }
        .nav-list a.nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            padding: 10px 24px;
            border-radius: var(--radius-md);
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(229,62,62,0.35);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list a.nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(229,62,62,0.45);
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-light);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 8px;
        }

        /* ===== Article Hero ===== */
        .article-hero {
            margin-top: var(--header-h);
            padding: 80px 0 60px;
            background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-section) 100%);
            position: relative;
            overflow: hidden;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.12;
            pointer-events: none;
        }
        .article-hero .container {
            position: relative;
            z-index: 1;
        }
        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }
        .article-breadcrumb a { color: var(--accent); }
        .article-breadcrumb a:hover { color: var(--primary-light); }
        .article-breadcrumb .sep { color: var(--text-muted); opacity: 0.5; }
        .article-hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--text-light);
            line-height: 1.25;
            max-width: 900px;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 24px;
            flex-wrap: wrap;
            font-size: 0.95rem;
            color: var(--text-muted);
        }
        .article-meta .tag {
            display: inline-block;
            padding: 4px 14px;
            background: rgba(229,62,62,0.15);
            color: var(--primary-light);
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
        }
        .article-meta i { margin-right: 6px; color: var(--accent); }

        /* ===== Article Main ===== */
        .article-main {
            padding: 60px 0 80px;
        }
        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 48px;
        }
        .article-body {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 40px 44px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-md);
        }
        .article-body h2 {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--text-light);
            margin: 32px 0 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--border-color);
        }
        .article-body h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text-light);
            margin: 24px 0 12px;
        }
        .article-body p {
            margin-bottom: 18px;
            color: var(--text-body);
            line-height: 1.8;
        }
        .article-body ul, .article-body ol {
            margin-bottom: 18px;
            padding-left: 24px;
        }
        .article-body ul li {
            list-style: disc;
            margin-bottom: 8px;
            color: var(--text-body);
        }
        .article-body ol li {
            list-style: decimal;
            margin-bottom: 8px;
            color: var(--text-body);
        }
        .article-body img {
            border-radius: var(--radius-md);
            margin: 24px 0;
            width: 100%;
            box-shadow: var(--shadow-sm);
        }
        .article-body blockquote {
            border-left: 4px solid var(--primary);
            background: rgba(229,62,62,0.08);
            padding: 16px 24px;
            margin: 24px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-muted);
            font-style: italic;
        }
        .article-body a { color: var(--accent); text-decoration: underline; }
        .article-body a:hover { color: var(--primary-light); }
        .article-body .cms-content {
            font-size: 1.05rem;
        }

        /* ===== Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 32px;
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
        }
        .sidebar-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-light);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .sidebar-card h3 i { color: var(--primary); }
        .sidebar-list li {
            padding: 12px 0;
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }
        .sidebar-list li:last-child { border-bottom: none; }
        .sidebar-list a {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            color: var(--text-body);
            transition: var(--transition);
        }
        .sidebar-list a:hover { color: var(--accent); }
        .sidebar-list .thumb {
            width: 60px; height: 60px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--bg-section);
        }
        .sidebar-list .info { flex: 1; }
        .sidebar-list .info .title {
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-light);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .sidebar-list .info .date {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 4px;
        }
        .sidebar-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .sidebar-tags a {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(255,255,255,0.06);
            border-radius: 20px;
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .sidebar-tags a:hover {
            background: rgba(229,62,62,0.15);
            color: var(--primary-light);
        }

        /* ===== Related Section ===== */
        .related-section {
            padding: 60px 0;
            background: var(--bg-warm);
            border-top: 1px solid var(--border-color);
        }
        .related-section h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-light);
            text-align: center;
            margin-bottom: 40px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(229,62,62,0.3);
        }
        .related-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }
        .related-card .card-body {
            padding: 18px 20px 22px;
        }
        .related-card .card-body h3 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-light);
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 12px;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .related-card .card-meta .tag-sm {
            padding: 2px 10px;
            background: rgba(229,62,62,0.12);
            color: var(--primary-light);
            border-radius: 12px;
            font-size: 0.75rem;
        }

        /* ===== Not Found ===== */
        .not-found-box {
            text-align: center;
            padding: 80px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
        }
        .not-found-box i {
            font-size: 3rem;
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .not-found-box h2 {
            font-size: 1.8rem;
            color: var(--text-light);
            margin-bottom: 12px;
        }
        .not-found-box p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .not-found-box .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border-radius: var(--radius-md);
            font-weight: 600;
            transition: var(--transition);
        }
        .not-found-box .btn-back:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(229,62,62,0.35);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-card);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            font-size: 1.4rem;
            margin-bottom: 16px;
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
            max-width: 400px;
        }
        .footer-col h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-light);
            margin-bottom: 16px;
        }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.92rem;
            transition: var(--transition);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-col ul li a:hover { color: var(--accent); }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
            font-size: 0.85rem;
            color: var(--text-muted);
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom a { color: var(--accent); }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            .nav-list { display: none; }
            .nav-toggle { display: block; }
            .nav-list.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: var(--header-h); left: 0; right: 0;
                background: rgba(15,15,26,0.98);
                backdrop-filter: blur(14px);
                padding: 16px 24px 24px;
                border-bottom: 1px solid var(--border-color);
                gap: 6px;
            }
            .nav-list.open a { width: 100%; padding: 12px 18px; }
            .nav-list.open a.nav-cta { justify-content: center; margin-top: 6px; }
            .article-hero { padding: 60px 0 40px; }
            .article-hero h1 { font-size: 1.8rem; }
            .article-body { padding: 24px 20px; }
            .article-meta { gap: 14px; font-size: 0.85rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .related-grid { grid-template-columns: 1fr; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            .article-hero h1 { font-size: 1.4rem; }
            .article-body { padding: 18px 14px; }
            .article-body h2 { font-size: 1.25rem; }
            .sidebar-card { padding: 20px; }
            .related-card img { height: 140px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #f59e0b;
            --primary-dark: #d97706;
            --primary-light: #fbbf24;
            --primary-glow: rgba(245, 158, 11, 0.35);
            --accent: #f97316;
            --accent-dark: #ea580c;
            --bg-dark: #0b0f17;
            --bg-card: #131a2b;
            --bg-card-hover: #1a2340;
            --bg-section-alt: #0f1522;
            --bg-elevated: #1c2742;
            --text-primary: #f1f5f9;
            --text-secondary: #94a3b8;
            --text-muted: #64748b;
            --border-color: rgba(245, 158, 11, 0.15);
            --border-glow: rgba(245, 158, 11, 0.25);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45), 0 0 0 1px rgba(245, 158, 11, 0.06);
            --shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(245, 158, 11, 0.15);
            --shadow-glow: 0 0 40px rgba(245, 158, 11, 0.08);
            --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
        }
        
        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-dark);
            background-image: radial-gradient(ellipse at 20% 20%, rgba(245, 158, 11, 0.03) 0%, transparent 60%),
                              radial-gradient(ellipse at 80% 80%, rgba(249, 115, 22, 0.03) 0%, transparent 60%);
            min-height: 100vh;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        ul,
        ol {
            list-style: none;
        }
        
        /* ===== 容器 ===== */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        
        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(11, 15, 23, 0.88);
            backdrop-filter: blur(20px) saturate(1.6);
            -webkit-backdrop-filter: blur(20px) saturate(1.6);
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
            transition: var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 24px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.5px;
            text-decoration: none;
            transition: var(--transition);
        }
        .logo:hover {
            color: var(--primary-light);
            transform: scale(1.02);
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: var(--radius-sm);
            font-size: 20px;
            font-weight: 700;
            color: var(--bg-dark);
            box-shadow: 0 0 20px var(--primary-glow);
        }
        .logo span {
            color: var(--primary-light);
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
            text-decoration: none;
        }
        .nav-list a::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%) scaleX(0);
            width: 60%;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 2px;
            transition: var(--transition);
        }
        .nav-list a:hover {
            color: var(--text-primary);
            background: rgba(245, 158, 11, 0.08);
        }
        .nav-list a:hover::after {
            transform: translateX(-50%) scaleX(1);
        }
        .nav-list a.active {
            color: var(--primary-light);
            background: rgba(245, 158, 11, 0.12);
        }
        .nav-list a.active::after {
            transform: translateX(-50%) scaleX(1);
        }
        .nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--accent)) !important;
            color: var(--bg-dark) !important;
            font-weight: 700 !important;
            padding: 10px 24px !important;
            border-radius: var(--radius-md) !important;
            box-shadow: 0 4px 20px var(--primary-glow);
            transition: var(--transition) !important;
            margin-left: 8px;
            text-decoration: none;
        }
        .nav-cta i {
            margin-right: 6px;
        }
        .nav-cta::after {
            display: none !important;
        }
        .nav-cta:hover {
            transform: translateY(-2px) scale(1.03);
            box-shadow: 0 8px 32px var(--primary-glow);
            color: var(--bg-dark) !important;
            background: linear-gradient(135deg, var(--primary-light), var(--accent)) !important;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 28px;
            cursor: pointer;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(245, 158, 11, 0.1);
        }
        
        /* ===== Banner 区 ===== */
        .category-banner {
            position: relative;
            padding: 100px 0 80px;
            background: linear-gradient(135deg, rgba(11, 15, 23, 0.92), rgba(15, 21, 34, 0.88)), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            border-bottom: 1px solid var(--border-color);
            overflow: hidden;
        }
        .category-banner::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(245, 158, 11, 0.08), transparent 70%);
            pointer-events: none;
        }
        .category-banner::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -5%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(249, 115, 22, 0.06), transparent 70%);
            pointer-events: none;
        }
        .category-banner .container {
            position: relative;
            z-index: 1;
            text-align: center;
        }
        .category-banner h1 {
            font-size: 48px;
            font-weight: 800;
            letter-spacing: -1px;
            line-height: 1.2;
            margin-bottom: 16px;
            background: linear-gradient(135deg, var(--text-primary) 30%, var(--primary-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .category-banner p {
            font-size: 18px;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto 24px;
            line-height: 1.8;
        }
        .banner-tags {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 12px;
        }
        .banner-tag {
            display: inline-block;
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            color: var(--primary-light);
            background: rgba(245, 158, 11, 0.12);
            border: 1px solid rgba(245, 158, 11, 0.2);
            transition: var(--transition);
        }
        .banner-tag:hover {
            background: rgba(245, 158, 11, 0.2);
            transform: translateY(-1px);
        }
        
        /* ===== 板块通用 ===== */
        .section {
            padding: 72px 0;
        }
        .section-alt {
            background: var(--bg-section-alt);
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 {
            font-size: 34px;
            font-weight: 700;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
            background: linear-gradient(135deg, var(--text-primary) 40%, var(--primary-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .section-header p {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 540px;
            margin: 0 auto;
        }
        .section-subtitle {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(245, 158, 11, 0.1);
            border: 1px solid rgba(245, 158, 11, 0.15);
            margin-bottom: 16px;
            letter-spacing: 1px;
            text-transform: uppercase;
        }
        
        /* ===== 攻略分类筛选 ===== */
        .filter-bar {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 48px;
        }
        .filter-btn {
            padding: 8px 22px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            cursor: pointer;
            transition: var(--transition);
        }
        .filter-btn:hover {
            color: var(--text-primary);
            background: rgba(245, 158, 11, 0.1);
            border-color: rgba(245, 158, 11, 0.2);
        }
        .filter-btn.active {
            color: var(--bg-dark);
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-color: transparent;
            box-shadow: 0 4px 20px var(--primary-glow);
        }
        
        /* ===== 攻略卡片网格 ===== */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .guide-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            cursor: pointer;
        }
        .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(245, 158, 11, 0.2);
            background: var(--bg-card-hover);
        }
        .guide-card-img {
            position: relative;
            width: 100%;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-elevated);
        }
        .guide-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .guide-card:hover .guide-card-img img {
            transform: scale(1.06);
        }
        .guide-card-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            color: var(--bg-dark);
            background: linear-gradient(135deg, var(--primary), var(--accent));
            box-shadow: 0 2px 12px rgba(245, 158, 11, 0.3);
        }
        .guide-card-body {
            padding: 22px 24px 24px;
        }
        .guide-card-body h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
            line-height: 1.4;
            transition: var(--transition);
        }
        .guide-card:hover .guide-card-body h3 {
            color: var(--primary-light);
        }
        .guide-card-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .guide-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 14px;
        }
        .guide-meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .guide-meta i {
            color: var(--primary);
            font-size: 12px;
        }
        
        /* ===== 热门攻略排行 ===== */
        .rank-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            counter-reset: rank;
        }
        .rank-item {
            display: flex;
            align-items: center;
            gap: 18px;
            padding: 16px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            counter-increment: rank;
        }
        .rank-item:hover {
            background: var(--bg-card-hover);
            border-color: rgba(245, 158, 11, 0.15);
            transform: translateX(4px);
        }
        .rank-num {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            background: rgba(245, 158, 11, 0.1);
            border: 1px solid rgba(245, 158, 11, 0.15);
        }
        .rank-item:nth-child(1) .rank-num {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: var(--bg-dark);
            border-color: transparent;
            box-shadow: 0 0 20px var(--primary-glow);
        }
        .rank-item:nth-child(2) .rank-num {
            background: rgba(245, 158, 11, 0.2);
            color: var(--primary-light);
            border-color: rgba(245, 158, 11, 0.3);
        }
        .rank-item:nth-child(3) .rank-num {
            background: rgba(245, 158, 11, 0.15);
            color: var(--primary-light);
            border-color: rgba(245, 158, 11, 0.2);
        }
        .rank-info {
            flex: 1;
            min-width: 0;
        }
        .rank-info h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .rank-info p {
            font-size: 13px;
            color: var(--text-muted);
        }
        .rank-hot {
            flex-shrink: 0;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent);
            background: rgba(249, 115, 22, 0.1);
            border: 1px solid rgba(249, 115, 22, 0.15);
        }
        
        /* ===== 攻略专题 ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .feature-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            min-height: 280px;
            display: flex;
            align-items: flex-end;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(245, 158, 11, 0.2);
        }
        .feature-card img {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .feature-card:hover img {
            transform: scale(1.06);
        }
        .feature-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(0deg, rgba(11, 15, 23, 0.92) 20%, rgba(11, 15, 23, 0.3) 60%, transparent 100%);
            pointer-events: none;
        }
        .feature-content {
            position: relative;
            z-index: 1;
            padding: 28px 24px 24px;
            width: 100%;
        }
        .feature-content .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            color: var(--bg-dark);
            background: linear-gradient(135deg, var(--primary), var(--accent));
            margin-bottom: 10px;
        }
        .feature-content h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .feature-content p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 0;
        }
        
        /* ===== 技巧列表 ===== */
        .tips-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .tip-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 20px 24px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .tip-item:hover {
            background: var(--bg-card-hover);
            border-color: rgba(245, 158, 11, 0.15);
            transform: translateY(-2px);
        }
        .tip-icon {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            background: rgba(245, 158, 11, 0.1);
            color: var(--primary-light);
            font-size: 20px;
            border: 1px solid rgba(245, 158, 11, 0.15);
        }
        .tip-text h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .tip-text p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        
        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(245, 158, 11, 0.15);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 18px 24px;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 16px;
            font-weight: 600;
            text-align: left;
            cursor: pointer;
            transition: var(--transition);
            gap: 16px;
        }
        .faq-question:hover {
            color: var(--primary-light);
        }
        .faq-question i {
            font-size: 14px;
            color: var(--primary);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-question[aria-expanded="true"] i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px 18px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
            display: none;
        }
        .faq-answer.open {
            display: block;
        }
        
        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, rgba(11, 15, 23, 0.92), rgba(15, 21, 34, 0.88)), url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            text-align: center;
            padding: 80px 0;
            position: relative;
        }
        .cta-section h2 {
            font-size: 38px;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            background: linear-gradient(135deg, var(--text-primary) 30%, var(--primary-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .cta-section p {
            font-size: 18px;
            color: var(--text-secondary);
            max-width: 520px;
            margin: 0 auto 32px;
        }
        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 40px;
            border-radius: var(--radius-md);
            font-size: 17px;
            font-weight: 700;
            color: var(--bg-dark);
            background: linear-gradient(135deg, var(--primary), var(--accent));
            box-shadow: 0 8px 32px var(--primary-glow);
            transition: var(--transition);
            border: none;
            cursor: pointer;
            text-decoration: none;
        }
        .cta-btn:hover {
            transform: translateY(-3px) scale(1.02);
            box-shadow: 0 16px 48px var(--primary-glow);
            color: var(--bg-dark);
        }
        .cta-btn i {
            font-size: 18px;
        }
        
        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-card);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }
        .footer-brand .logo {
            font-size: 22px;
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-secondary);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--primary-light);
            transform: translateX(4px);
        }
        .footer-col ul li a i {
            font-size: 13px;
            color: var(--primary);
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 24px 0;
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom a {
            color: var(--primary-light);
        }
        .footer-bottom a:hover {
            color: var(--primary);
        }
        
        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .guide-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .category-banner h1 {
                font-size: 38px;
            }
        }
        
        @media (max-width: 768px) {
            .nav-list {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: rgba(11, 15, 23, 0.96);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px;
                gap: 6px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
            }
            .nav-list.show {
                display: flex;
            }
            .nav-list a {
                width: 100%;
                padding: 12px 16px;
                border-radius: var(--radius-sm);
            }
            .nav-list a::after {
                display: none;
            }
            .nav-cta {
                margin-left: 0;
                margin-top: 6px;
                text-align: center;
                justify-content: center;
            }
            .nav-toggle {
                display: block;
            }
            .category-banner {
                padding: 72px 0 56px;
            }
            .category-banner h1 {
                font-size: 30px;
            }
            .category-banner p {
                font-size: 16px;
            }
            .section {
                padding: 56px 0;
            }
            .section-header h2 {
                font-size: 28px;
            }
            .guide-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .feature-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .rank-list {
                grid-template-columns: 1fr;
            }
            .tips-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-section h2 {
                font-size: 28px;
            }
            .cta-btn {
                padding: 14px 32px;
                font-size: 15px;
            }
        }
        
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .category-banner h1 {
                font-size: 26px;
            }
            .section-header h2 {
                font-size: 24px;
            }
            .guide-card-body {
                padding: 16px 18px 18px;
            }
            .guide-card-body h3 {
                font-size: 16px;
            }
            .filter-btn {
                padding: 6px 16px;
                font-size: 13px;
            }
            .rank-item {
                padding: 12px 14px;
                gap: 12px;
            }
            .tip-item {
                padding: 16px 18px;
                flex-direction: column;
                gap: 10px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 15px;
            }
            .faq-answer {
                padding: 0 16px 14px;
                font-size: 14px;
            }
        }