/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #FF6B00;
            --primary-dark: #E55D00;
            --primary-light: #FF8C33;
            --secondary: #FFD700;
            --secondary-dark: #E6C200;
            --accent: #FF3366;
            --bg-dark: #0A0E17;
            --bg-card: #131B2A;
            --bg-card-hover: #1A2538;
            --bg-section: #0F1522;
            --bg-light: #1A2538;
            --text: #FFFFFF;
            --text-light: #F0F4FF;
            --text-muted: #8A9BB5;
            --text-dim: #5A6B85;
            --border: #2A3A55;
            --border-light: #3A4A65;
            --radius: 12px;
            --radius-lg: 20px;
            --radius-sm: 8px;
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 40px rgba(255, 107, 0, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --container: 1200px;
            --header-h: 80px;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg-dark);
            min-height: 100vh;
            overflow-x: hidden;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-light);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }
        button {
            cursor: pointer;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--text-light);
        }
        h1 {
            font-size: clamp(2.2rem, 5vw, 3.6rem);
        }
        h2 {
            font-size: clamp(1.6rem, 3.5vw, 2.4rem);
        }
        h3 {
            font-size: clamp(1.2rem, 2.5vw, 1.6rem);
        }
        p {
            color: var(--text-muted);
            margin-bottom: 1rem;
        }
        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 导航 ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-h);
            background: rgba(10, 14, 23, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(42, 58, 85, 0.4);
            transition: var(--transition);
        }
        .header.scrolled {
            background: rgba(10, 14, 23, 0.98);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: 0.5px;
            flex-shrink: 0;
        }
        .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);
            color: #fff;
            font-size: 1.2rem;
            font-weight: 900;
        }
        .logo span {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: var(--transition);
            position: relative;
        }
        .nav a:hover {
            color: var(--text-light);
            background: rgba(255, 255, 255, 0.05);
        }
        .nav a.active {
            color: var(--primary);
            background: rgba(255, 107, 0, 0.1);
        }
        .nav a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 24px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 28px !important;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark)) !important;
            color: #fff !important;
            border-radius: var(--radius-sm) !important;
            font-weight: 700 !important;
            font-size: 0.95rem !important;
            box-shadow: 0 4px 20px rgba(255, 107, 0, 0.3);
            transition: var(--transition);
            margin-left: 8px;
        }
        .nav-cta:hover {
            background: linear-gradient(135deg, var(--primary-light), var(--primary)) !important;
            box-shadow: 0 6px 30px rgba(255, 107, 0, 0.45) !important;
            transform: translateY(-2px);
            color: #fff !important;
        }
        .nav-cta i {
            font-size: 0.85rem;
        }

        /* 移动端菜单按钮 */
        .menu-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.05);
            cursor: pointer;
            transition: var(--transition);
            z-index: 1001;
        }
        .menu-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-light);
            border-radius: 2px;
            transition: var(--transition);
            margin: 3px 0;
        }
        .menu-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .menu-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ===== Hero 首屏 ===== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: calc(var(--header-h) + 40px) 24px 80px;
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            z-index: 0;
        }
        .hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 14, 23, 0.88) 0%, rgba(10, 14, 23, 0.65) 50%, rgba(10, 14, 23, 0.85) 100%);
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(255, 107, 0, 0.08) 0%, transparent 70%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 820px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 20px;
            background: rgba(255, 107, 0, 0.15);
            border: 1px solid rgba(255, 107, 0, 0.3);
            border-radius: 50px;
            font-size: 0.85rem;
            color: var(--primary-light);
            margin-bottom: 28px;
            letter-spacing: 0.5px;
        }
        .hero-badge i {
            font-size: 0.75rem;
            animation: pulse-dot 2s infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.3;
            }
        }
        .hero h1 {
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }
        .hero h1 .highlight {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: clamp(1.05rem, 2vw, 1.25rem);
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
            align-items: center;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 34px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1rem;
            transition: var(--transition);
            border: 2px solid transparent;
            cursor: pointer;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: 0 4px 24px rgba(255, 107, 0, 0.35);
        }
        .btn-primary:hover {
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            box-shadow: 0 8px 36px rgba(255, 107, 0, 0.5);
            transform: translateY(-3px);
            color: #fff;
        }
        .btn-secondary {
            background: transparent;
            color: var(--text-light);
            border-color: rgba(255, 255, 255, 0.2);
        }
        .btn-secondary:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(255, 107, 0, 0.08);
            transform: translateY(-3px);
        }
        .btn-sm {
            padding: 10px 22px;
            font-size: 0.9rem;
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            justify-content: center;
            margin-top: 60px;
            padding-top: 40px;
            border-top: 1px solid rgba(42, 58, 85, 0.4);
        }
        .hero-stat {
            text-align: center;
        }
        .hero-stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: 1px;
        }
        .hero-stat-number .num-suffix {
            color: var(--primary);
        }
        .hero-stat-label {
            font-size: 0.85rem;
            color: var(--text-dim);
            margin-top: 4px;
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-section);
        }
        .section-header {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 56px;
        }
        .section-header h2 {
            margin-bottom: 14px;
        }
        .section-header p {
            font-size: 1.05rem;
            color: var(--text-muted);
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 16px;
            background: rgba(255, 107, 0, 0.1);
            border: 1px solid rgba(255, 107, 0, 0.2);
            border-radius: 50px;
            font-size: 0.8rem;
            color: var(--primary-light);
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .section-tag i {
            font-size: 0.7rem;
        }

        /* ===== 特色板块 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 24px;
        }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 32px 28px;
            border: 1px solid var(--border);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            opacity: 0;
            transition: var(--transition);
        }
        .feature-card:hover {
            border-color: var(--border-light);
            background: var(--bg-card-hover);
            transform: translateY(-6px);
            box-shadow: var(--shadow);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: var(--radius-sm);
            background: rgba(255, 107, 0, 0.12);
            color: var(--primary);
            font-size: 1.6rem;
            margin-bottom: 18px;
            transition: var(--transition);
        }
        .feature-card:hover .feature-icon {
            background: rgba(255, 107, 0, 0.2);
            transform: scale(1.05);
        }
        .feature-card h3 {
            margin-bottom: 10px;
        }
        .feature-card p {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* ===== 分类入口 ===== */
        .categories-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 20px;
        }
        .category-card {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            background: var(--bg-card);
            border: 1px solid var(--border);
            transition: var(--transition);
            cursor: pointer;
            min-height: 200px;
            display: flex;
            align-items: flex-end;
        }
        .category-card:hover {
            border-color: var(--border-light);
            transform: translateY(-4px);
            box-shadow: var(--shadow);
        }
        .category-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .category-card:hover img {
            transform: scale(1.08);
        }
        .category-card-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(10, 14, 23, 0.92) 0%, rgba(10, 14, 23, 0.3) 60%, transparent 100%);
            z-index: 1;
        }
        .category-card-content {
            position: relative;
            z-index: 2;
            padding: 24px 20px;
            width: 100%;
        }
        .category-card-content h3 {
            font-size: 1.15rem;
            margin-bottom: 4px;
        }
        .category-card-content p {
            font-size: 0.85rem;
            color: var(--text-dim);
            margin-bottom: 0;
        }
        .category-card .cat-badge {
            display: inline-block;
            padding: 2px 12px;
            background: rgba(255, 107, 0, 0.2);
            border-radius: 50px;
            font-size: 0.7rem;
            color: var(--primary-light);
            margin-bottom: 8px;
            letter-spacing: 0.3px;
        }

        /* ===== 最新资讯列表 (CMS) ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
        }
        .news-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .news-card:hover {
            border-color: var(--border-light);
            transform: translateY(-4px);
            box-shadow: var(--shadow);
        }
        .news-card-img {
            position: relative;
            height: 180px;
            overflow: hidden;
        }
        .news-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .news-card:hover .news-card-img img {
            transform: scale(1.05);
        }
        .news-card-cat {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 14px;
            background: rgba(255, 107, 0, 0.9);
            border-radius: 50px;
            font-size: 0.75rem;
            color: #fff;
            font-weight: 600;
            backdrop-filter: blur(4px);
        }
        .news-card-body {
            padding: 20px 22px 24px;
        }
        .news-card-body h3 {
            font-size: 1.05rem;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card-body h3 a {
            color: var(--text-light);
        }
        .news-card-body h3 a:hover {
            color: var(--primary);
        }
        .news-card-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 14px;
        }
        .news-card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--text-dim);
        }
        .news-card-meta i {
            margin-right: 4px;
            font-size: 0.75rem;
        }
        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 60px 20px;
            color: var(--text-dim);
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px dashed var(--border);
        }
        .news-empty i {
            font-size: 2.4rem;
            margin-bottom: 16px;
            color: var(--text-dim);
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 24px;
        }
        .stat-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .stat-card:hover {
            border-color: var(--border-light);
            transform: translateY(-4px);
            box-shadow: var(--shadow);
        }
        .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--text-light);
            line-height: 1.2;
        }
        .stat-number .num-accent {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-top: 6px;
        }
        .stat-icon {
            font-size: 1.6rem;
            color: var(--primary);
            margin-bottom: 12px;
            opacity: 0.7;
        }

        /* ===== 流程步骤 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 32px;
            counter-reset: step;
        }
        .step-card {
            text-align: center;
            padding: 32px 20px;
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            position: relative;
            transition: var(--transition);
        }
        .step-card:hover {
            border-color: var(--border-light);
            transform: translateY(-4px);
            box-shadow: var(--shadow);
        }
        .step-number {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-size: 1.3rem;
            font-weight: 800;
            margin-bottom: 18px;
            box-shadow: 0 4px 20px rgba(255, 107, 0, 0.3);
        }
        .step-card h3 {
            font-size: 1.1rem;
            margin-bottom: 8px;
        }
        .step-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }
        .step-connector {
            display: none;
        }

        /* ===== 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-sm);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-light);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-light);
            cursor: pointer;
            transition: var(--transition);
            gap: 12px;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question i {
            font-size: 0.85rem;
            color: var(--primary);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.8;
            display: none;
        }
        .faq-item.active .faq-answer {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-section);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -30%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(255, 107, 0, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .cta-box {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
            padding: 40px 20px;
        }
        .cta-box h2 {
            margin-bottom: 14px;
        }
        .cta-box p {
            font-size: 1.05rem;
            margin-bottom: 32px;
        }
        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--bg-dark);
            border-top: 1px solid var(--border);
            padding: 48px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .logo {
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-dim);
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            color: var(--text-light);
            margin-bottom: 16px;
            font-weight: 600;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 0.9rem;
            color: var(--text-dim);
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 16px;
        }
        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: var(--bg-card);
            color: var(--text-muted);
            font-size: 1.1rem;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-3px);
        }
        .footer-bottom {
            border-top: 1px solid rgba(42, 58, 85, 0.4);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 0.85rem;
            color: var(--text-dim);
        }
        .footer-bottom a {
            color: var(--text-dim);
        }
        .footer-bottom a:hover {
            color: var(--primary);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .hero-stats {
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-h: 68px;
            }
            .menu-toggle {
                display: flex;
            }
            .nav {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: rgba(10, 14, 23, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px 32px;
                gap: 4px;
                border-bottom: 1px solid var(--border);
                transform: translateY(-120%);
                opacity: 0;
                transition: var(--transition);
                pointer-events: none;
                box-shadow: var(--shadow-lg);
            }
            .nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav a {
                width: 100%;
                padding: 14px 18px;
                font-size: 1rem;
            }
            .nav a.active::after {
                display: none;
            }
            .nav a.active {
                background: rgba(255, 107, 0, 0.12);
            }
            .nav-cta {
                margin-left: 0;
                margin-top: 8px;
                justify-content: center;
                width: 100%;
            }
            .hero {
                min-height: 90vh;
                padding-top: calc(var(--header-h) + 32px);
                padding-bottom: 48px;
            }
            .hero-stats {
                gap: 20px;
                margin-top: 40px;
                padding-top: 28px;
            }
            .hero-stat-number {
                font-size: 1.6rem;
            }
            .section {
                padding: 56px 0;
            }
            .section-header {
                margin-bottom: 36px;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .categories-grid {
                grid-template-columns: 1fr 1fr;
            }
            .news-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-box {
                padding: 20px 0;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .hero p {
                font-size: 0.95rem;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
            .categories-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .hero-stats {
                flex-direction: column;
                gap: 16px;
            }
            .news-card-img {
                height: 140px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 0.95rem;
            }
            .faq-answer {
                padding: 0 16px 14px;
                font-size: 0.9rem;
            }
            .footer {
                padding: 32px 0 24px;
            }
        }

        /* ===== 滚动动画 ===== */
        .fade-in {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.7s ease, transform 0.7s ease;
        }
        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== 自定义滚动条 ===== */
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-dark);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--border-light);
        }

        /* ===== 选中样式 ===== */
        ::selection {
            background: rgba(255, 107, 0, 0.3);
            color: #fff;
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #e8a832;
            --primary-dark: #c98a1e;
            --primary-light: #f5c85a;
            --secondary: #1e2a3a;
            --secondary-light: #2a3a4e;
            --accent: #ff6b35;
            --bg-dark: #0f1419;
            --bg-darker: #0a0e12;
            --bg-card: #1a2332;
            --bg-elevated: #243040;
            --text: #f0f2f5;
            --text-secondary: #a8b4c8;
            --text-muted: #6a7a8e;
            --border: #2a3a4e;
            --border-light: #3a4e66;
            --radius: 12px;
            --radius-lg: 20px;
            --radius-sm: 8px;
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
            --shadow-hover: 0 16px 48px rgba(232, 168, 50, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --container: 1200px;
            --nav-height: 72px;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg-dark);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            transition: var(--transition);
        }

        button {
            cursor: pointer;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            font-weight: 700;
            color: var(--text);
        }

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

        .container-sm {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .container-fluid {
            width: 100%;
            padding: 0 24px;
        }

        /* ===== 导航 ===== */
        .nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 32px;
            background: rgba(15, 20, 25, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }

        .nav .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text);
            letter-spacing: 0.5px;
        }

        .nav .logo .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: 10px;
            font-size: 22px;
            font-weight: 900;
            color: var(--bg-dark);
        }

        .nav .logo span:last-child {
            color: var(--text);
        }

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

        .nav-links a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }

        .nav-links a i {
            margin-right: 6px;
            font-size: 14px;
        }

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

        .nav-links a.active {
            color: var(--primary);
            background: rgba(232, 168, 50, 0.12);
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }

        .nav-links a.nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: var(--bg-dark);
            font-weight: 700;
            padding: 10px 28px;
            border-radius: 50px;
            box-shadow: 0 4px 20px rgba(232, 168, 50, 0.3);
            margin-left: 12px;
        }

        .nav-links a.nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(232, 168, 50, 0.4);
            color: var(--bg-dark);
            background: linear-gradient(135deg, var(--primary-light), var(--accent));
        }

        .nav-links a.nav-cta i {
            margin-right: 8px;
        }

        .nav-toggle {
            display: none;
            font-size: 24px;
            color: var(--text);
            padding: 8px;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.05);
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        /* ===== Hero / Banner ===== */
        .page-hero {
            padding: 120px 0 80px;
            background: linear-gradient(135deg, var(--bg-darker) 0%, var(--secondary) 50%, var(--bg-dark) 100%);
            position: relative;
            overflow: hidden;
            min-height: 380px;
            display: flex;
            align-items: center;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.2;
            mix-blend-mode: overlay;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(232, 168, 50, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .page-hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .page-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 20px;
            background: rgba(232, 168, 50, 0.15);
            border: 1px solid rgba(232, 168, 50, 0.3);
            border-radius: 50px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 24px;
            letter-spacing: 0.5px;
        }

        .page-hero h1 {
            font-size: 52px;
            font-weight: 900;
            background: linear-gradient(135deg, var(--text) 0%, var(--primary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 20px;
            letter-spacing: -1px;
        }

        .page-hero p {
            font-size: 18px;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.8;
        }

        .page-hero .hero-meta {
            display: flex;
            justify-content: center;
            gap: 40px;
            margin-top: 32px;
            flex-wrap: wrap;
        }

        .page-hero .hero-meta span {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-secondary);
            font-size: 15px;
        }

        .page-hero .hero-meta span i {
            color: var(--primary);
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 80px 0;
        }

        .section-alt {
            background: var(--bg-card);
        }

        .section-darker {
            background: var(--bg-darker);
        }

        .section-header {
            text-align: center;
            margin-bottom: 56px;
        }

        .section-header h2 {
            font-size: 36px;
            font-weight: 800;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }

        .section-header h2 span {
            color: var(--primary);
        }

        .section-header p {
            color: var(--text-secondary);
            font-size: 17px;
            max-width: 560px;
            margin: 0 auto;
        }

        .section-header .header-line {
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: 2px;
            margin: 16px auto 0;
        }

        /* ===== 卡片通用 ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: var(--transition);
        }

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

        .card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
            background: var(--secondary);
        }

        .card-body {
            padding: 24px;
        }

        .card-body .card-tag {
            display: inline-block;
            padding: 4px 14px;
            background: rgba(232, 168, 50, 0.12);
            color: var(--primary);
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
            margin-bottom: 12px;
        }

        .card-body h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.35;
        }

        .card-body h3 a {
            color: var(--text);
        }

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

        .card-body p {
            color: var(--text-secondary);
            font-size: 15px;
            margin-bottom: 16px;
            line-height: 1.7;
        }

        .card-body .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
            padding-top: 14px;
            border-top: 1px solid var(--border);
        }

        .card-body .card-meta i {
            margin-right: 4px;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: 50px;
            font-size: 16px;
            font-weight: 600;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: var(--bg-dark);
            box-shadow: 0 4px 20px rgba(232, 168, 50, 0.25);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 36px rgba(232, 168, 50, 0.35);
            color: var(--bg-dark);
        }

        .btn-secondary {
            background: rgba(255, 255, 255, 0.06);
            color: var(--text);
            border: 1px solid var(--border);
        }

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

        .btn-sm {
            padding: 8px 20px;
            font-size: 14px;
        }

        .btn-lg {
            padding: 16px 44px;
            font-size: 18px;
        }

        /* ===== 标签 ===== */
        .tag {
            display: inline-flex;
            align-items: center;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 500;
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-secondary);
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(232, 168, 50, 0.08);
        }

        .tag-primary {
            background: rgba(232, 168, 50, 0.12);
            color: var(--primary);
            border-color: rgba(232, 168, 50, 0.2);
        }

        /* ===== 网格 ===== */
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
        }

        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

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

        /* ===== 图文区块 ===== */
        .split-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .split-block .split-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
        }

        .split-block .split-img img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
        }

        .split-block .split-content h2 {
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .split-block .split-content h2 span {
            color: var(--primary);
        }

        .split-block .split-content p {
            color: var(--text-secondary);
            font-size: 17px;
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .split-block .split-content .split-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .split-block .split-content .split-list li {
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--text-secondary);
            font-size: 16px;
        }

        .split-block .split-content .split-list li i {
            color: var(--primary);
            font-size: 18px;
            width: 24px;
            text-align: center;
        }

        /* ===== 攻略分类板块 ===== */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .category-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 32px 24px;
            text-align: center;
            transition: var(--transition);
            cursor: pointer;
        }

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

        .category-card .cat-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 20px;
            background: linear-gradient(135deg, rgba(232, 168, 50, 0.15), rgba(255, 107, 53, 0.1));
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            color: var(--primary);
            transition: var(--transition);
        }

        .category-card:hover .cat-icon {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: var(--bg-dark);
        }

        .category-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .category-card p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.6;
        }

        .category-card .cat-count {
            display: inline-block;
            margin-top: 16px;
            padding: 4px 16px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 50px;
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ===== 最新攻略列表 ===== */
        .article-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .article-list-item {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 20px 24px;
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            transition: var(--transition);
        }

        .article-list-item:hover {
            border-color: var(--border-light);
            transform: translateX(4px);
            box-shadow: var(--shadow);
        }

        .article-list-item .item-num {
            font-size: 28px;
            font-weight: 900;
            color: var(--text-muted);
            min-width: 48px;
            text-align: center;
        }

        .article-list-item .item-content {
            flex: 1;
        }

        .article-list-item .item-content h4 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 4px;
        }

        .article-list-item .item-content h4 a {
            color: var(--text);
        }

        .article-list-item .item-content h4 a:hover {
            color: var(--primary);
        }

        .article-list-item .item-content p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.6;
        }

        .article-list-item .item-tag {
            padding: 4px 14px;
            background: rgba(232, 168, 50, 0.1);
            color: var(--primary);
            border-radius: 50px;
            font-size: 13px;
            font-weight: 500;
            white-space: nowrap;
        }

        /* ===== FAQ ===== */
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px 28px;
            transition: var(--transition);
        }

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

        .faq-item .faq-q {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-weight: 700;
            font-size: 16px;
            color: var(--text);
            margin-bottom: 10px;
        }

        .faq-item .faq-q .q-icon {
            color: var(--primary);
            font-size: 18px;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .faq-item .faq-a {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
            padding-left: 30px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--secondary) 0%, var(--bg-darker) 100%);
            position: relative;
            overflow: hidden;
            text-align: center;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(232, 168, 50, 0.06) 0%, transparent 70%);
        }

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

        .cta-section h2 {
            font-size: 38px;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .cta-section h2 span {
            color: var(--primary);
        }

        .cta-section p {
            color: var(--text-secondary);
            font-size: 18px;
            max-width: 520px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }

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

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-darker);
            border-top: 1px solid var(--border);
            padding: 60px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid var(--border);
        }

        .footer-brand .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 16px;
        }

        .footer-brand .logo .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: 10px;
            font-size: 22px;
            font-weight: 900;
            color: var(--bg-dark);
        }

        .footer-brand p {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 20px;
            max-width: 360px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 50%;
            color: var(--text-secondary);
            font-size: 18px;
            transition: var(--transition);
        }

        .footer-social a:hover {
            background: var(--primary);
            color: var(--bg-dark);
            transform: translateY(-3px);
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 20px;
            letter-spacing: 0.3px;
        }

        .footer-col ul li {
            margin-bottom: 12px;
        }

        .footer-col ul li a {
            color: var(--text-secondary);
            font-size: 15px;
            transition: var(--transition);
        }

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

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 24px 0;
            font-size: 14px;
            color: var(--text-muted);
            flex-wrap: wrap;
            gap: 12px;
        }

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

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

        .footer-bottom span a {
            margin: 0 4px;
        }

        /* ===== 响应式 ===== */

        /* 平板 1024px */
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .page-hero h1 {
                font-size: 40px;
            }
        }

        /* 平板 768px */
        @media (max-width: 768px) {
            .nav {
                padding: 0 16px;
            }
            .nav-links a span {
                display: none;
            }
            .nav-links a i {
                margin-right: 0;
                font-size: 18px;
            }
            .nav-links a.nav-cta {
                padding: 10px 18px;
            }
            .nav-links a.nav-cta span {
                display: inline;
                font-size: 13px;
            }

            .nav-toggle {
                display: block;
            }

            .nav-links {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(15, 20, 25, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px;
                gap: 6px;
                border-bottom: 1px solid var(--border);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
            }

            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }

            .nav-links a {
                width: 100%;
                padding: 14px 18px;
                border-radius: var(--radius-sm);
                font-size: 16px;
            }

            .nav-links a span {
                display: inline;
            }

            .nav-links a.nav-cta {
                margin-left: 0;
                margin-top: 8px;
                text-align: center;
            }

            .nav-links a.active::after {
                display: none;
            }

            .page-hero {
                padding: 100px 0 60px;
                min-height: 300px;
            }
            .page-hero h1 {
                font-size: 32px;
            }
            .page-hero p {
                font-size: 16px;
            }
            .page-hero .hero-meta {
                gap: 20px;
            }

            .section {
                padding: 56px 0;
            }
            .section-header h2 {
                font-size: 28px;
            }

            .grid-2,
            .grid-3,
            .grid-4 {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .split-block {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .split-block .split-content h2 {
                font-size: 28px;
            }

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

            .faq-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;
            }
        }

        /* 手机 520px */
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .nav {
                padding: 0 12px;
            }
            .nav .logo {
                font-size: 18px;
            }
            .nav .logo .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 18px;
            }
            .nav-links a.nav-cta {
                padding: 8px 14px;
                font-size: 13px;
            }

            .page-hero h1 {
                font-size: 26px;
            }
            .page-hero p {
                font-size: 15px;
            }
            .page-hero .hero-meta span {
                font-size: 13px;
            }

            .section-header h2 {
                font-size: 24px;
            }

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

            .card-body h3 {
                font-size: 18px;
            }

            .article-list-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
                padding: 16px 18px;
            }
            .article-list-item .item-num {
                font-size: 22px;
                min-width: auto;
            }

            .btn-lg {
                padding: 14px 32px;
                font-size: 16px;
            }

            .cta-section h2 {
                font-size: 24px;
            }
        }

        /* ===== 工具类 ===== */
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mt-48 {
            margin-top: 48px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .mb-24 {
            margin-bottom: 24px;
        }
        .gap-16 {
            gap: 16px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }

        /* ===== 滚动条 ===== */
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-darker);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--border-light);
        }

        /* ===== 选中 ===== */
        ::selection {
            background: var(--primary);
            color: var(--bg-dark);
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #e94560;
            --primary-dark: #c23152;
            --primary-glow: rgba(233, 69, 96, 0.3);
            --secondary: #f5a623;
            --secondary-dark: #d48f1a;
            --secondary-glow: rgba(245, 166, 35, 0.25);
            --accent: #00d4ff;
            --accent-glow: rgba(0, 212, 255, 0.2);
            --bg-dark: #0a0a1a;
            --bg-section: #111128;
            --bg-card: #1a1a3e;
            --bg-card-hover: #222255;
            --bg-elevated: #28285a;
            --text-primary: #ffffff;
            --text-secondary: #e0e0e0;
            --text-muted: #8888aa;
            --text-dim: #666688;
            --border-color: #2a2a5a;
            --border-glow: rgba(233, 69, 96, 0.15);
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.6);
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
            --font-main: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --container-width: 1200px;
            --nav-height: 72px;
        }

        /* ===== 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-main);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-secondary);
            background: var(--bg-dark);
            min-height: 100vh;
            overflow-x: hidden;
        }

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

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }

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

        button {
            cursor: pointer;
        }

        ul,
        ol {
            list-style: none;
        }

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

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

        /* ===== Header & Navigation ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10, 10, 26, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            height: var(--nav-height);
            transition: var(--transition);
        }

        .header.scrolled {
            background: rgba(10, 10, 26, 0.98);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            transition: var(--transition);
        }

        .logo:hover {
            color: var(--secondary);
            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(--secondary));
            border-radius: 10px;
            font-size: 20px;
            font-weight: 900;
            color: #fff;
            box-shadow: 0 4px 16px var(--primary-glow);
        }

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

        .nav a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav a i {
            font-size: 14px;
        }

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

        .nav a.active {
            color: var(--secondary);
            background: rgba(245, 166, 35, 0.1);
        }

        .nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--secondary);
            border-radius: 2px;
            box-shadow: 0 0 12px var(--secondary-glow);
        }

        .nav a.nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            padding: 10px 24px;
            border-radius: 25px;
            font-weight: 600;
            box-shadow: 0 4px 20px var(--primary-glow);
            margin-left: 12px;
        }

        .nav a.nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px var(--primary-glow);
            background: linear-gradient(135deg, #ff5a75, var(--primary-dark));
            color: #fff;
        }

        .nav a.nav-cta i {
            font-size: 15px;
        }

        /* Mobile Menu Toggle */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            background: none;
            border: none;
            cursor: pointer;
        }

        .menu-toggle span {
            display: block;
            width: 26px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: var(--transition);
        }

        .menu-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .menu-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ===== Hero Banner ===== */
        .article-hero {
            position: relative;
            min-height: 380px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            margin-top: var(--nav-height);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            overflow: hidden;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 10, 26, 0.85) 0%, rgba(17, 17, 40, 0.75) 50%, rgba(10, 10, 26, 0.9) 100%);
            z-index: 1;
        }

        .article-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(233, 69, 96, 0.08) 0%, transparent 70%);
            z-index: 1;
        }

        .article-hero .hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            padding: 60px 24px;
        }

        .article-hero .hero-category {
            display: inline-block;
            padding: 6px 20px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 20px;
            box-shadow: 0 4px 16px var(--primary-glow);
        }

        .article-hero .hero-title {
            font-size: 40px;
            font-weight: 800;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 16px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
        }

        .article-hero .hero-meta {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 24px;
            font-size: 14px;
            color: var(--text-muted);
        }

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

        .article-hero .hero-meta i {
            color: var(--secondary);
            font-size: 14px;
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-wrap {
            background: var(--bg-section);
            border-bottom: 1px solid var(--border-color);
            padding: 14px 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
        }

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

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

        .breadcrumb .sep {
            color: var(--text-dim);
            font-size: 12px;
        }

        .breadcrumb .current {
            color: var(--text-secondary);
            font-weight: 500;
            max-width: 300px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        /* ===== Main Content ===== */
        .article-main {
            padding: 60px 0 80px;
        }

        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
            align-items: start;
        }

        .article-body {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 40px 44px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

        .article-body:hover {
            border-color: rgba(233, 69, 96, 0.15);
        }

        .article-body h1 {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--text-primary);
            line-height: 1.3;
        }

        .article-meta-bar {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 20px;
            padding-bottom: 24px;
            margin-bottom: 28px;
            border-bottom: 1px solid var(--border-color);
            font-size: 14px;
            color: var(--text-muted);
        }

        .article-meta-bar .meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta-bar .meta-item i {
            font-size: 14px;
            color: var(--secondary);
        }

        .article-meta-bar .meta-category {
            padding: 4px 14px;
            background: rgba(245, 166, 35, 0.12);
            color: var(--secondary);
            border-radius: 14px;
            font-size: 12px;
            font-weight: 600;
        }

        .article-content {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-secondary);
        }

        .article-content p {
            margin-bottom: 20px;
        }

        .article-content h2,
        .article-content h3 {
            margin-top: 36px;
            margin-bottom: 16px;
            color: var(--text-primary);
        }

        .article-content h2 {
            font-size: 24px;
            border-left: 4px solid var(--primary);
            padding-left: 16px;
        }

        .article-content h3 {
            font-size: 20px;
        }

        .article-content ul,
        .article-content ol {
            margin-bottom: 20px;
            padding-left: 24px;
        }

        .article-content ul li {
            list-style: disc;
            margin-bottom: 8px;
        }

        .article-content ol li {
            list-style: decimal;
            margin-bottom: 8px;
        }

        .article-content img {
            border-radius: var(--radius);
            margin: 24px 0;
            box-shadow: var(--shadow);
        }

        .article-content blockquote {
            border-left: 4px solid var(--secondary);
            background: rgba(245, 166, 35, 0.06);
            padding: 16px 24px;
            margin: 24px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }

        .article-content a {
            color: var(--accent);
            text-decoration: underline;
            text-underline-offset: 2px;
        }

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

        /* ===== Article Tags & Share ===== */
        .article-footer-bar {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            margin-top: 40px;
            padding-top: 28px;
            border-top: 1px solid var(--border-color);
        }

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

        .article-tags .tag {
            padding: 4px 14px;
            background: rgba(0, 212, 255, 0.08);
            border: 1px solid rgba(0, 212, 255, 0.15);
            color: var(--accent);
            border-radius: 16px;
            font-size: 12px;
            font-weight: 500;
            transition: var(--transition);
        }

        .article-tags .tag:hover {
            background: rgba(0, 212, 255, 0.15);
            border-color: var(--accent);
        }

        .article-share {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .article-share span {
            font-size: 13px;
            color: var(--text-muted);
        }

        .article-share a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--bg-elevated);
            color: var(--text-muted);
            font-size: 16px;
            transition: var(--transition);
            border: 1px solid var(--border-color);
        }

        .article-share a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 4px 16px var(--primary-glow);
        }

        .article-share a.share-weixin:hover {
            background: #07c160;
            border-color: #07c160;
        }

        .article-share a.share-weibo:hover {
            background: #e6162d;
            border-color: #e6162d;
        }

        .article-share a.share-qq:hover {
            background: #12b7f5;
            border-color: #12b7f5;
        }

        /* ===== Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 32px;
        }

        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
        }

        .sidebar-card:hover {
            border-color: rgba(233, 69, 96, 0.12);
        }

        .sidebar-card .sidebar-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .sidebar-card .sidebar-title i {
            color: var(--secondary);
            font-size: 18px;
        }

        .sidebar-card .sidebar-title::after {
            content: '';
            flex: 1;
            height: 1px;
            background: linear-gradient(to right, var(--border-color), transparent);
        }

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

        .sidebar-list-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px solid rgba(42, 42, 90, 0.5);
            transition: var(--transition);
        }

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

        .sidebar-list-item:hover {
            padding-left: 8px;
        }

        .sidebar-list-item .item-index {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(233, 69, 96, 0.1);
            border-radius: 50%;
            font-size: 12px;
            font-weight: 700;
            color: var(--primary);
        }

        .sidebar-list-item .item-index.top1 {
            background: rgba(245, 166, 35, 0.2);
            color: var(--secondary);
        }

        .sidebar-list-item .item-index.top2 {
            background: rgba(0, 212, 255, 0.12);
            color: var(--accent);
        }

        .sidebar-list-item .item-index.top3 {
            background: rgba(233, 69, 96, 0.08);
            color: var(--primary);
        }

        .sidebar-list-item .item-info {
            flex: 1;
            min-width: 0;
        }

        .sidebar-list-item .item-title {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: var(--transition);
        }

        .sidebar-list-item:hover .item-title {
            color: var(--secondary);
        }

        .sidebar-list-item .item-date {
            font-size: 12px;
            color: var(--text-dim);
            margin-top: 4px;
        }

        .sidebar-cta {
            background: linear-gradient(135deg, rgba(233, 69, 96, 0.08), rgba(245, 166, 35, 0.06));
            border: 1px solid rgba(233, 69, 96, 0.15);
            border-radius: var(--radius);
            padding: 24px 20px;
            text-align: center;
        }

        .sidebar-cta h4 {
            font-size: 16px;
            margin-bottom: 12px;
            color: var(--text-primary);
        }

        .sidebar-cta p {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 16px;
        }

        .sidebar-cta .btn {
            display: inline-block;
            padding: 10px 28px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border-radius: 25px;
            font-size: 14px;
            font-weight: 600;
            box-shadow: 0 4px 20px var(--primary-glow);
            transition: var(--transition);
        }

        .sidebar-cta .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px var(--primary-glow);
        }

        /* ===== Related Posts ===== */
        .related-section {
            padding: 60px 0;
            background: var(--bg-section);
            border-top: 1px solid var(--border-color);
        }

        .related-section .section-title {
            font-size: 28px;
            font-weight: 800;
            text-align: center;
            margin-bottom: 12px;
            color: var(--text-primary);
        }

        .related-section .section-sub {
            text-align: center;
            color: var(--text-muted);
            margin-bottom: 40px;
            font-size: 15px;
        }

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

        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            box-shadow: var(--shadow-card);
        }

        .related-card:hover {
            transform: translateY(-6px);
            border-color: rgba(233, 69, 96, 0.2);
            box-shadow: var(--shadow-lg);
        }

        .related-card .related-img {
            position: relative;
            width: 100%;
            aspect-ratio: 16 / 10;
            overflow: hidden;
        }

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

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

        .related-card .related-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(10, 10, 26, 0.6), transparent);
            opacity: 0;
            transition: var(--transition);
        }

        .related-card:hover .related-img::after {
            opacity: 1;
        }

        .related-card .related-info {
            padding: 18px 20px 20px;
        }

        .related-card .related-info h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: var(--transition);
        }

        .related-card:hover .related-info h4 {
            color: var(--secondary);
        }

        .related-card .related-date {
            font-size: 12px;
            color: var(--text-dim);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .related-card .related-date i {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* ===== CTA Section ===== */
        .cta-section {
            padding: 80px 0;
            background: var(--bg-dark);
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, rgba(233, 69, 96, 0.05) 0%, transparent 70%);
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .cta-section p {
            font-size: 16px;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto 32px;
        }

        .cta-buttons {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border-radius: 30px;
            font-size: 16px;
            font-weight: 600;
            box-shadow: 0 6px 28px var(--primary-glow);
            transition: var(--transition);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px var(--primary-glow);
            color: #fff;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            background: transparent;
            color: var(--text-primary);
            border: 2px solid var(--border-color);
            border-radius: 30px;
            font-size: 16px;
            font-weight: 600;
            transition: var(--transition);
        }

        .btn-secondary:hover {
            border-color: var(--secondary);
            color: var(--secondary);
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(245, 166, 35, 0.1);
        }

        /* ===== 404 / Not Found ===== */
        .not-found-wrap {
            padding: 120px 24px;
            text-align: center;
            min-height: 60vh;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }

        .not-found-wrap .nf-icon {
            font-size: 72px;
            color: var(--text-dim);
            margin-bottom: 24px;
        }

        .not-found-wrap h2 {
            font-size: 28px;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .not-found-wrap p {
            color: var(--text-muted);
            margin-bottom: 24px;
            font-size: 16px;
        }

        .not-found-wrap .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: 25px;
            font-weight: 600;
            transition: var(--transition);
        }

        .not-found-wrap .btn-back:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px var(--primary-glow);
            color: #fff;
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-section);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid var(--border-color);
        }

        .footer-brand .logo {
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 20px;
            max-width: 360px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--bg-elevated);
            color: var(--text-muted);
            font-size: 18px;
            transition: var(--transition);
            border: 1px solid var(--border-color);
        }

        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-3px);
            box-shadow: 0 4px 16px var(--primary-glow);
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 30px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

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

        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-muted);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

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

        .footer-col ul li a::before {
            content: '›';
            font-size: 16px;
            color: var(--text-dim);
            transition: var(--transition);
        }

        .footer-col ul li a:hover::before {
            color: var(--secondary);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 24px 0;
            font-size: 13px;
            color: var(--text-dim);
            flex-wrap: wrap;
            gap: 12px;
        }

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

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

        .footer-bottom span a {
            margin: 0 4px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
            }

            .article-sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }

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

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

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

            .menu-toggle {
                display: flex;
            }

            .nav {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(10, 10, 26, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border-color);
                transform: translateY(-120%);
                opacity: 0;
                transition: var(--transition);
                pointer-events: none;
                box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
            }

            .nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }

            .nav a {
                padding: 12px 16px;
                font-size: 16px;
                width: 100%;
                border-radius: var(--radius-sm);
            }

            .nav a.nav-cta {
                margin-left: 0;
                margin-top: 8px;
                text-align: center;
                justify-content: center;
            }

            .article-hero {
                min-height: 280px;
            }

            .article-hero .hero-title {
                font-size: 28px;
            }

            .article-hero .hero-meta {
                flex-wrap: wrap;
                gap: 12px;
                font-size: 13px;
            }

            .article-body {
                padding: 24px 20px;
            }

            .article-body h1 {
                font-size: 24px;
            }

            .article-meta-bar {
                gap: 12px;
                font-size: 13px;
            }

            .article-content {
                font-size: 15px;
            }

            .article-content h2 {
                font-size: 20px;
            }

            .article-content h3 {
                font-size: 18px;
            }

            .article-footer-bar {
                flex-direction: column;
                align-items: flex-start;
            }

            .article-sidebar {
                grid-template-columns: 1fr;
            }

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

            .related-section .section-title {
                font-size: 22px;
            }

            .cta-section h2 {
                font-size: 24px;
            }

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

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

            .breadcrumb .current {
                max-width: 180px;
            }
        }

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

            .article-hero .hero-title {
                font-size: 22px;
            }

            .article-hero .hero-content {
                padding: 40px 16px;
            }

            .article-body {
                padding: 20px 16px;
                border-radius: var(--radius);
            }

            .article-body h1 {
                font-size: 20px;
            }

            .article-content {
                font-size: 14px;
            }

            .article-content h2 {
                font-size: 18px;
                padding-left: 12px;
            }

            .related-section {
                padding: 40px 0;
            }

            .cta-section {
                padding: 50px 0;
            }

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

            .btn-primary,
            .btn-secondary {
                padding: 12px 28px;
                font-size: 14px;
                width: 100%;
                justify-content: center;
            }

            .cta-buttons {
                flex-direction: column;
            }

            .not-found-wrap h2 {
                font-size: 22px;
            }

            .sidebar-card {
                padding: 20px 16px;
            }
        }