/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0a1628;
            --primary-light: #13263a;
            --primary-dark: #050e1a;
            --accent: #c9a84c;
            --accent-light: #e8d5a3;
            --accent-dark: #9a7e2a;
            --text: #ece9e4;
            --text-secondary: #9aabbf;
            --text-muted: #5f738a;
            --border: #1e3452;
            --card-bg: #10202e;
            --card-hover: #152c40;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.45);
            --shadow-md: 0 6px 24px rgba(0,0,0,0.55);
            --shadow-lg: 0 12px 48px rgba(0,0,0,0.7);
            --radius: 10px;
            --radius-lg: 20px;
            --radius-xl: 30px;
            --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --nav-height: 70px;
        }

        /* ===== 基础重置 ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; font-size: 16px; }
        body {
            font-family: var(--font-sans);
            background: var(--primary);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
        a:hover, a:focus { color: var(--accent-light); }
        a:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 700; color: var(--text); }
        p { margin-bottom: 1rem; }
        strong { color: var(--accent-light); font-weight: 600; }

        /* ===== 容器 ===== */
        .container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
        .container-wide { max-width: 1400px; }
        .section { padding: 80px 0; }
        .section-dark { background: var(--primary-dark); }
        .section-light { background: var(--primary-light); }
        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            text-align: center;
            margin-bottom: 0.5rem;
            letter-spacing: -0.02em;
        }
        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            text-align: center;
            max-width: 680px;
            margin: 0 auto 56px auto;
        }
        .accent-line {
            width: 60px;
            height: 4px;
            background: var(--accent);
            border-radius: 4px;
            margin: 12px auto 24px auto;
        }
        .text-center { text-align: center; }

        /* ===== 导航（分屏联动版式） ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(10, 22, 40, 0.85);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(201, 168, 76, 0.15);
            transition: background var(--transition), border-color var(--transition);
        }
        .site-header.scrolled {
            background: rgba(5, 14, 26, 0.95);
            border-bottom-color: rgba(201, 168, 76, 0.25);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        /* 左区：Logo */
        .header-left {
            display: flex;
            align-items: center;
            gap: 12px;
            flex: 0 0 auto;
        }
        .site-logo {
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--text);
            letter-spacing: 0.03em;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition);
        }
        .site-logo:hover { color: var(--accent); }
        .site-logo .logo-icon {
            width: 34px;
            height: 34px;
            background: var(--accent);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 1.1rem;
            color: var(--primary);
            flex-shrink: 0;
        }
        /* 右区：导航 + CTA */
        .header-right {
            display: flex;
            align-items: center;
            gap: 32px;
            flex: 1 1 auto;
            justify-content: flex-end;
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .nav-list a {
            color: var(--text-secondary);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: color var(--transition), border-color var(--transition);
            letter-spacing: 0.01em;
        }
        .nav-list a:hover, .nav-list a:focus { color: var(--text); }
        .nav-list a.active {
            color: var(--accent);
            border-bottom-color: var(--accent);
        }
        .nav-cta {
            background: var(--accent);
            color: var(--primary) !important;
            padding: 8px 24px !important;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            border: none;
            transition: background var(--transition), transform var(--transition);
            letter-spacing: 0.02em;
        }
        .nav-cta:hover {
            background: var(--accent-light);
            transform: translateY(-1px);
            color: var(--primary) !important;
        }
        /* 移动端汉堡按钮 */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            background: none;
            border: none;
            padding: 8px;
            z-index: 1001;
        }
        .hamburger span {
            width: 28px;
            height: 3px;
            background: var(--text);
            border-radius: 3px;
            transition: var(--transition);
        }
        .hamburger.active span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
        .hamburger.active span:nth-child(2) { opacity: 0; }
        .hamburger.active span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

        /* ===== Hero 首屏（分屏布局） ===== */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            position: relative;
            padding: 120px 0 80px;
            overflow: hidden;
            background: var(--primary-dark);
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            opacity: 0.35;
            z-index: 0;
        }
        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10,22,40,0.92) 0%, rgba(10,22,40,0.6) 60%, rgba(10,22,40,0.3) 100%);
            z-index: 1;
        }
        .hero .container {
            position: relative;
            z-index: 2;
            width: 100%;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }
        .hero-content h1 {
            font-size: 3.4rem;
            font-weight: 900;
            line-height: 1.15;
            margin-bottom: 20px;
            letter-spacing: -0.02em;
        }
        .hero-content h1 .highlight {
            color: var(--accent);
        }
        .hero-content .hero-desc {
            font-size: 1.2rem;
            color: var(--text-secondary);
            max-width: 540px;
            margin-bottom: 36px;
            line-height: 1.7;
        }
        .hero-buttons {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            cursor: pointer;
            border: none;
            text-decoration: none;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--primary) !important;
        }
        .btn-primary:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(201, 168, 76, 0.3);
        }
        .btn-outline {
            background: transparent;
            color: var(--text) !important;
            border: 2px solid rgba(255,255,255,0.25);
        }
        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent) !important;
            transform: translateY(-2px);
        }
        .hero-visual {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .hero-visual .hero-image {
            width: 100%;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            transform: perspective(800px) rotateY(-4deg) rotateX(2deg);
            transition: transform 0.6s ease;
        }
        .hero-visual .hero-image:hover {
            transform: perspective(800px) rotateY(0deg) rotateX(0deg);
        }
        .hero-badge {
            position: absolute;
            bottom: -16px;
            left: -16px;
            background: var(--accent);
            color: var(--primary);
            padding: 12px 24px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 0.85rem;
            box-shadow: var(--shadow-md);
        }

        /* ===== 核心优势卡片 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }
        .feature-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--accent);
            opacity: 0;
            transition: opacity var(--transition);
        }
        .feature-card:hover::after { opacity: 1; }
        .feature-card:hover {
            background: var(--card-hover);
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(201,168,76,0.3);
        }
        .feature-icon {
            width: 60px;
            height: 60px;
            background: rgba(201,168,76,0.12);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            color: var(--accent);
            margin-bottom: 20px;
        }
        .feature-card h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .feature-card p {
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== 平台特色（图文区块） ===== */
        .showcase-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }
        .showcase-text h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .showcase-text p {
            color: var(--text-secondary);
            font-size: 1.05rem;
            margin-bottom: 20px;
        }
        .showcase-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
            margin-top: 24px;
        }
        .showcase-list li {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            color: var(--text-secondary);
            font-size: 0.98rem;
        }
        .showcase-list li i {
            color: var(--accent);
            font-size: 1.2rem;
            margin-top: 3px;
            flex-shrink: 0;
        }
        .showcase-image {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            width: 100%;
            transition: transform 0.6s ease;
        }
        .showcase-image:hover {
            transform: scale(1.01);
        }

        /* ===== 最新资讯（CMS列表） ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 28px;
        }
        .news-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            background: var(--card-hover);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(201,168,76,0.2);
        }
        .news-card .news-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 12px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .news-card .news-meta .category-tag {
            background: rgba(201,168,76,0.15);
            color: var(--accent);
            padding: 4px 14px;
            border-radius: 50px;
            font-weight: 500;
            font-size: 0.75rem;
        }
        .news-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .news-card h3 a {
            color: var(--text);
            transition: color var(--transition);
        }
        .news-card h3 a:hover { color: var(--accent); }
        .news-card p {
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.65;
            margin-bottom: 0;
            flex: 1;
        }
        .news-card .read-more {
            margin-top: 18px;
            color: var(--accent);
            font-weight: 600;
            font-size: 0.88rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .news-empty {
            text-align: center;
            padding: 60px 20px;
            color: var(--text-muted);
            font-size: 1.1rem;
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            border: 1px dashed var(--border);
        }

        /* ===== 数据统计（社会认同） ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 36px 20px;
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .stat-item:hover {
            border-color: rgba(201,168,76,0.3);
            transform: translateY(-4px);
            box-shadow: var(--shadow-sm);
        }
        .stat-number {
            font-size: 3rem;
            font-weight: 900;
            color: var(--accent);
            line-height: 1.1;
            margin-bottom: 8px;
        }
        .stat-label {
            font-size: 0.95rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ===== 使用流程 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .step-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            position: relative;
            transition: all var(--transition);
            counter-increment: step;
        }
        .step-card::before {
            content: counter(step);
            position: absolute;
            top: 16px;
            right: 20px;
            font-size: 3.6rem;
            font-weight: 900;
            color: rgba(201,168,76,0.08);
            line-height: 1;
            transition: color var(--transition);
        }
        .step-card:hover::before { color: rgba(201,168,76,0.18); }
        .step-card:hover {
            background: var(--card-hover);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(201,168,76,0.2);
        }
        .step-icon {
            width: 52px;
            height: 52px;
            background: rgba(201,168,76,0.12);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--accent);
            margin-bottom: 18px;
            position: relative;
            z-index: 1;
        }
        .step-card h4 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }
        .step-card p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.6;
            margin-bottom: 0;
            position: relative;
            z-index: 1;
        }

        /* ===== FAQ ===== */
        .faq-grid {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: border-color var(--transition);
        }
        .faq-item:hover { border-color: rgba(201,168,76,0.2); }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 20px 28px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            text-align: left;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            transition: color var(--transition);
        }
        .faq-question:hover { color: var(--accent); }
        .faq-question i {
            transition: transform var(--transition);
            color: var(--accent);
            flex-shrink: 0;
        }
        .faq-item.active .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 28px 20px 28px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.75;
            display: none;
        }
        .faq-item.active .faq-answer { display: block; }

        /* ===== CTA 区块 ===== */
        .cta-section {
            background: var(--primary-dark);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            z-index: 0;
        }
        .cta-content {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 80px 20px;
        }
        .cta-content h2 {
            font-size: 2.4rem;
            font-weight: 900;
            margin-bottom: 16px;
        }
        .cta-content p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto 36px auto;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary-dark);
            border-top: 1px solid var(--border);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .site-logo { font-size: 1.2rem; margin-bottom: 14px; }
        .footer-brand p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 300px;
        }
        .footer-col h5 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 18px;
            letter-spacing: 0.02em;
        }
        .footer-col ul { display: flex; flex-direction: column; gap: 10px; }
        .footer-col ul a {
            color: var(--text-secondary);
            font-size: 0.88rem;
            transition: color var(--transition);
        }
        .footer-col ul a:hover { color: var(--accent); }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .footer-bottom a { color: var(--text-muted); }
        .footer-bottom a:hover { color: var(--accent); }

        /* ===== 响应式断点 ===== */
        @media (max-width: 1024px) {
            .hero-grid { grid-template-columns: 1fr; gap: 40px; }
            .hero-content h1 { font-size: 2.6rem; }
            .hero-visual .hero-image { transform: none; max-width: 600px; margin: 0 auto; }
            .hero-badge { left: 0; bottom: -12px; }
            .features-grid { grid-template-columns: repeat(2, 1fr); }
            .showcase-grid { grid-template-columns: 1fr; gap: 40px; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .steps-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
            .section-title { font-size: 1.9rem; }
        }

        @media (max-width: 768px) {
            .header-right .nav-list { display: none; }
            .hamburger { display: flex; }
            .mobile-nav-open .header-right .nav-list {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(5, 14, 26, 0.98);
                backdrop-filter: blur(14px);
                padding: 24px 28px;
                gap: 16px;
                border-bottom: 1px solid var(--border);
            }
            .mobile-nav-open .header-right .nav-list a { font-size: 1rem; padding: 8px 0; }
            .hero { padding: 100px 0 60px; min-height: auto; }
            .hero-content h1 { font-size: 2.2rem; }
            .hero-content .hero-desc { font-size: 1rem; }
            .features-grid { grid-template-columns: 1fr; }
            .news-grid { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .stat-number { font-size: 2.2rem; }
            .steps-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .section { padding: 56px 0; }
            .section-title { font-size: 1.6rem; }
            .btn { padding: 12px 28px; font-size: 0.9rem; }
        }

        @media (max-width: 520px) {
            .hero-content h1 { font-size: 1.8rem; }
            .hero-buttons { flex-direction: column; align-items: stretch; }
            .hero-buttons .btn { justify-content: center; }
            .hero-badge { display: none; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
            .stat-item { padding: 24px 12px; }
            .stat-number { font-size: 1.8rem; }
            .container { padding: 0 16px; }
            .header-inner { padding: 0 16px; }
        }

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

        /* ===== 基础 Foundation 覆盖 ===== */
        .grid-container { max-width: var(--max-width); padding-left: 24px; padding-right: 24px; }
        @media (max-width: 768px) { .grid-container { padding-left: 16px; padding-right: 16px; } }

/* roulang page: article */
:root {
            --primary: #1a2a3a;
            --primary-light: #2c3e50;
            --primary-dark: #0f1a24;
            --accent: #d4a843;
            --accent-hover: #e0b95a;
            --accent-glow: rgba(212, 168, 67, 0.3);
            --bg-dark: #0b131c;
            --bg-card: #162230;
            --bg-section: #0f1a24;
            --text-light: #f0ede8;
            --text-muted: #9aa8b7;
            --text-dark: #1a2a3a;
            --border-light: rgba(212, 168, 67, 0.15);
            --border-glow: rgba(212, 168, 67, 0.3);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
            --shadow-md: 0 8px 30px rgba(0,0,0,0.4);
            --shadow-lg: 0 20px 60px rgba(0,0,0,0.6);
            --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-serif: 'Georgia', 'Times New Roman', serif;
            --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

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

        html { scroll-behavior: smooth; font-size: 16px; }

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

        a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--accent-hover); }
        a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 3px; }

        img { max-width: 100%; height: auto; display: block; }
        ul, ol { list-style: none; }
        button, input, textarea { font-family: inherit; font-size: inherit; }

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

        @media screen and (max-width: 640px) {
            .container { padding: 0 16px; }
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-height);
            background: rgba(11, 19, 28, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            z-index: 1000;
            transition: background var(--transition);
        }

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

        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-serif);
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-light);
            letter-spacing: 1px;
        }

        .site-logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--accent);
            color: var(--primary-dark);
            border-radius: 8px;
            font-size: 1.3rem;
            font-weight: 900;
            font-family: var(--font-serif);
        }

        .site-logo:hover { color: var(--accent); }
        .site-logo:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; border-radius: 4px; }

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

        .nav-list a {
            padding: 8px 16px;
            border-radius: 30px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: all var(--transition);
            position: relative;
        }

        .nav-list a:hover {
            color: var(--text-light);
            background: rgba(212, 168, 67, 0.08);
        }

        .nav-list a.active {
            color: var(--accent);
            background: rgba(212, 168, 67, 0.12);
        }

        .nav-list a.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }

        .nav-list a.nav-cta {
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 600;
            padding: 8px 20px;
            border-radius: 30px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-list a.nav-cta:hover {
            background: var(--accent-hover);
            transform: translateY(-1px);
            box-shadow: 0 4px 20px var(--accent-glow);
            color: var(--primary-dark);
        }

        .nav-list a.nav-cta i { font-size: 0.8rem; transition: transform var(--transition); }
        .nav-list a.nav-cta:hover i { transform: translateX(4px); }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-light);
            font-size: 1.6rem;
            cursor: pointer;
            padding: 6px;
            border-radius: 8px;
            transition: background var(--transition);
        }

        .menu-toggle:hover { background: rgba(255,255,255,0.06); }
        .menu-toggle:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

        /* Mobile nav */
        @media screen and (max-width: 768px) {
            .menu-toggle { display: block; }

            .nav-list {
                position: fixed;
                top: var(--header-height);
                left: 0;
                width: 100%;
                background: rgba(11, 19, 28, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 24px 30px;
                gap: 8px;
                border-bottom: 1px solid var(--border-light);
                transform: translateY(-110%);
                opacity: 0;
                pointer-events: none;
                transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            }

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

            .nav-list a {
                width: 100%;
                text-align: center;
                padding: 12px 16px;
                font-size: 1rem;
            }

            .nav-list a.nav-cta {
                justify-content: center;
                margin-top: 8px;
            }

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

        /* ===== Article Hero ===== */
        .article-hero {
            padding: 140px 0 60px;
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-section) 100%);
            position: relative;
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            opacity: 0.15;
            z-index: 0;
        }

        .article-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 120px;
            background: linear-gradient(to top, var(--bg-dark) 0%, transparent 100%);
            z-index: 1;
        }

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

        .article-hero .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

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

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

        .article-hero .breadcrumb span {
            color: var(--accent);
        }

        .article-hero .breadcrumb i {
            font-size: 0.65rem;
            color: var(--text-muted);
        }

        .article-hero h1 {
            font-family: var(--font-serif);
            font-size: 2.6rem;
            font-weight: 700;
            color: var(--text-light);
            line-height: 1.25;
            max-width: 900px;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .article-hero .meta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            color: var(--text-muted);
            font-size: 0.9rem;
        }

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

        .article-hero .meta i {
            color: var(--accent);
            font-size: 0.85rem;
        }

        .article-hero .meta .category-tag {
            display: inline-block;
            padding: 4px 14px;
            background: rgba(212, 168, 67, 0.15);
            color: var(--accent);
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 500;
            border: 1px solid var(--border-light);
        }

        @media screen and (max-width: 768px) {
            .article-hero { padding: 120px 0 40px; min-height: 240px; }
            .article-hero h1 { font-size: 1.8rem; }
            .article-hero .meta { gap: 12px; font-size: 0.82rem; }
        }

        @media screen and (max-width: 520px) {
            .article-hero h1 { font-size: 1.5rem; }
        }

        /* ===== Article Content ===== */
        .article-main {
            padding: 50px 0 80px;
            background: var(--bg-dark);
        }

        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 50px;
            align-items: start;
        }

        .article-body {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 48px 44px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
        }

        .article-body .content-not-found {
            text-align: center;
            padding: 60px 20px;
        }

        .article-body .content-not-found i {
            font-size: 3rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            display: block;
        }

        .article-body .content-not-found h3 {
            font-size: 1.4rem;
            color: var(--text-light);
            margin-bottom: 12px;
        }

        .article-body .content-not-found p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        .article-body .content-not-found a {
            display: inline-block;
            padding: 10px 28px;
            background: var(--accent);
            color: var(--primary-dark);
            border-radius: 30px;
            font-weight: 600;
        }

        .article-body .content-not-found a:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 24px var(--accent-glow);
        }

        .article-body .cms-content h2,
        .article-body .cms-content h3,
        .article-body .cms-content h4 {
            font-family: var(--font-serif);
            color: var(--text-light);
            margin-top: 1.8em;
            margin-bottom: 0.8em;
            line-height: 1.3;
        }

        .article-body .cms-content h2 { font-size: 1.6rem; border-bottom: 1px solid var(--border-light); padding-bottom: 10px; }
        .article-body .cms-content h3 { font-size: 1.3rem; }
        .article-body .cms-content h4 { font-size: 1.1rem; }

        .article-body .cms-content p {
            margin-bottom: 1.2em;
            color: var(--text-muted);
            line-height: 1.8;
            font-size: 1.02rem;
        }

        .article-body .cms-content a {
            color: var(--accent);
            border-bottom: 1px solid transparent;
        }

        .article-body .cms-content a:hover {
            border-bottom-color: var(--accent);
        }

        .article-body .cms-content ul,
        .article-body .cms-content ol {
            margin: 1em 0 1.2em 1.8em;
            color: var(--text-muted);
        }

        .article-body .cms-content ul li {
            list-style: disc;
            margin-bottom: 0.5em;
        }

        .article-body .cms-content ol li {
            list-style: decimal;
            margin-bottom: 0.5em;
        }

        .article-body .cms-content blockquote {
            border-left: 4px solid var(--accent);
            background: rgba(212, 168, 67, 0.06);
            padding: 16px 24px;
            margin: 1.5em 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-light);
            font-style: italic;
        }

        .article-body .cms-content img {
            border-radius: var(--radius-md);
            margin: 1.5em 0;
            box-shadow: var(--shadow-sm);
        }

        .article-body .cms-content code {
            background: rgba(255,255,255,0.06);
            padding: 2px 10px;
            border-radius: 4px;
            font-size: 0.9em;
            color: var(--accent);
        }

        .article-body .cms-content pre {
            background: rgba(0,0,0,0.3);
            border-radius: var(--radius-md);
            padding: 20px 24px;
            overflow-x: auto;
            margin: 1.5em 0;
            border: 1px solid var(--border-light);
        }

        .article-body .cms-content pre code {
            background: none;
            padding: 0;
            color: var(--text-light);
        }

        .article-body .cms-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5em 0;
        }

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

        .article-body .cms-content table th {
            background: rgba(212, 168, 67, 0.08);
            color: var(--accent);
            font-weight: 600;
        }

        .article-body .cms-content table td {
            color: var(--text-muted);
        }

        @media screen and (max-width: 1024px) {
            .article-layout { grid-template-columns: 1fr; gap: 40px; }
        }

        @media screen and (max-width: 768px) {
            .article-body { padding: 28px 20px; }
            .article-body .cms-content h2 { font-size: 1.3rem; }
            .article-body .cms-content p { font-size: 0.95rem; }
        }

        /* ===== Sidebar ===== */
        .article-sidebar {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }

        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            border: 1px solid var(--border-light);
        }

        .sidebar-card h5 {
            font-family: var(--font-serif);
            font-size: 1.05rem;
            color: var(--text-light);
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .sidebar-card h5 i {
            color: var(--accent);
            font-size: 0.95rem;
        }

        .sidebar-card ul li {
            margin-bottom: 10px;
        }

        .sidebar-card ul li a {
            color: var(--text-muted);
            font-size: 0.92rem;
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 6px 0;
            transition: all var(--transition);
        }

        .sidebar-card ul li a::before {
            content: '›';
            color: var(--accent);
            font-size: 1.1rem;
            font-weight: 700;
            transition: transform var(--transition);
        }

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

        .sidebar-card ul li a:hover::before {
            transform: translateX(4px);
        }

        .sidebar-cta {
            background: linear-gradient(135deg, rgba(212, 168, 67, 0.1), rgba(212, 168, 67, 0.02));
            border-color: var(--border-glow);
        }

        .sidebar-cta p {
            color: var(--text-muted);
            font-size: 0.92rem;
            margin-bottom: 16px;
        }

        .sidebar-cta .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            background: var(--accent);
            color: var(--primary-dark);
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition);
        }

        .sidebar-cta .btn-cta:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 24px var(--accent-glow);
            color: var(--primary-dark);
        }

        .sidebar-cta .btn-cta i {
            font-size: 0.8rem;
            transition: transform var(--transition);
        }

        .sidebar-cta .btn-cta:hover i {
            transform: translateX(4px);
        }

        @media screen and (max-width: 1024px) {
            .article-sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
        }

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

        /* ===== Related Section ===== */
        .related-section {
            padding: 60px 0 80px;
            background: var(--bg-section);
            border-top: 1px solid var(--border-light);
        }

        .related-section .section-title {
            font-family: var(--font-serif);
            font-size: 1.6rem;
            color: var(--text-light);
            margin-bottom: 32px;
            text-align: center;
        }

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

        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 24px;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }

        .related-card:hover {
            border-color: var(--accent);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .related-card .card-img {
            border-radius: var(--radius-sm);
            margin-bottom: 16px;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            background: rgba(255,255,255,0.04);
        }

        .related-card h4 {
            font-family: var(--font-serif);
            font-size: 1.05rem;
            color: var(--text-light);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .related-card h4 a {
            color: var(--text-light);
        }

        .related-card h4 a:hover {
            color: var(--accent);
        }

        .related-card p {
            color: var(--text-muted);
            font-size: 0.88rem;
            line-height: 1.6;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card .meta-sm {
            font-size: 0.8rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .related-card .meta-sm i {
            color: var(--accent);
            font-size: 0.75rem;
        }

        @media screen and (max-width: 900px) {
            .related-grid { grid-template-columns: repeat(2, 1fr); }
        }

        @media screen and (max-width: 600px) {
            .related-grid { grid-template-columns: 1fr; }
            .related-section .section-title { font-size: 1.3rem; }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            border-top: 1px solid var(--border-light);
            padding: 60px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand .site-logo {
            margin-bottom: 16px;
            display: inline-flex;
        }

        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.7;
            max-width: 360px;
        }

        .footer-col h5 {
            font-family: var(--font-serif);
            font-size: 1rem;
            color: var(--text-light);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: all var(--transition);
        }

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

        .footer-bottom {
            border-top: 1px solid var(--border-light);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            color: var(--text-muted);
            font-size: 0.85rem;
        }

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

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

        @media screen and (max-width: 900px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
            .footer-brand { grid-column: 1 / -1; }
        }

        @media screen and (max-width: 600px) {
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

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

        /* ===== Selection ===== */
        ::selection { background: var(--accent); color: var(--primary-dark); }
        ::-moz-selection { background: var(--accent); color: var(--primary-dark); }

        /* ===== Utility ===== */
        .text-accent { color: var(--accent); }
        .text-muted { color: var(--text-muted); }
        .mb-1 { margin-bottom: 1rem; }
        .mb-2 { margin-bottom: 2rem; }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0b1a2e;
            --primary-light: #1a2f4a;
            --accent: #d4a84b;
            --accent-hover: #c49a3f;
            --accent-light: rgba(212, 168, 75, 0.12);
            --bg-dark: #070f1a;
            --bg-section: #0b1625;
            --bg-card: rgba(16, 30, 50, 0.75);
            --bg-card-hover: rgba(20, 38, 60, 0.9);
            --text-white: #f0ece4;
            --text-light: #c8c3b8;
            --text-muted: #8a857a;
            --border-color: rgba(212, 168, 75, 0.2);
            --border-hover: rgba(212, 168, 75, 0.45);
            --radius: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 4px 20px rgba(0,0,0,0.3);
            --shadow-md: 0 8px 40px rgba(0,0,0,0.4);
            --shadow-lg: 0 16px 60px rgba(0,0,0,0.5);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --container-max: 1200px;
        }

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

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

        /* ===== Typography ===== */
        h1, h2, h3, h4, h5, h6 {
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.01em;
        }
        h1 { font-size: 3.2rem; }
        h2 { font-size: 2.4rem; margin-bottom: 1rem; }
        h3 { font-size: 1.6rem; }
        h4 { font-size: 1.25rem; }
        h5 { font-size: 1.05rem; }
        p { margin-bottom: 1rem; color: var(--text-light); }
        .section-label {
            display: inline-block;
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 0.5rem;
            border-left: 3px solid var(--accent);
            padding-left: 12px;
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            color: var(--text-white);
        }
        .section-sub {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 680px;
            margin-bottom: 2.5rem;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(7, 15, 26, 0.88);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(212, 168, 75, 0.08);
            transition: var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-white);
            letter-spacing: 0.5px;
        }
        .site-logo:hover { color: var(--accent); }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--accent);
            color: var(--bg-dark);
            font-weight: 800;
            font-size: 1.1rem;
            border-radius: 8px;
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list a {
            padding: 8px 16px;
            border-radius: 8px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-light);
            transition: var(--transition);
            position: relative;
        }
        .nav-list a:hover {
            color: var(--text-white);
            background: rgba(212, 168, 75, 0.08);
        }
        .nav-list a.active {
            color: var(--accent);
            background: var(--accent-light);
        }
        .nav-list a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .nav-cta {
            background: var(--accent) !important;
            color: var(--bg-dark) !important;
            font-weight: 600 !important;
            padding: 8px 22px !important;
            border-radius: 8px !important;
            transition: var(--transition) !important;
        }
        .nav-cta:hover {
            background: var(--accent-hover) !important;
            transform: translateY(-1px);
            box-shadow: 0 4px 18px rgba(212, 168, 75, 0.3);
        }
        .nav-cta i { margin-left: 6px; font-size: 0.8rem; }
        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid rgba(212, 168, 75, 0.25);
            color: var(--text-white);
            width: 42px;
            height: 42px;
            border-radius: 10px;
            font-size: 1.3rem;
            cursor: pointer;
            transition: var(--transition);
        }
        .nav-toggle:hover { border-color: var(--accent); color: var(--accent); }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 92vh;
            display: flex;
            align-items: center;
            margin-top: 0;
            padding-top: 68px;
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            transform: scale(1.02);
            filter: brightness(0.35) saturate(1.1);
            z-index: 0;
            transition: transform 6s ease;
        }
        .hero:hover .hero-bg { transform: scale(1.06); }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(7,15,26,0.3) 0%, rgba(7,15,26,0.85) 70%);
            z-index: 1;
        }
        .hero .container {
            position: relative;
            z-index: 2;
            width: 100%;
            padding-top: 40px;
            padding-bottom: 60px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-light);
            border: 1px solid rgba(212, 168, 75, 0.25);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.82rem;
            color: var(--accent);
            font-weight: 500;
            margin-bottom: 24px;
            backdrop-filter: blur(4px);
        }
        .hero-badge i { font-size: 0.75rem; }
        .hero h1 {
            font-size: 3.6rem;
            font-weight: 800;
            line-height: 1.15;
            max-width: 820px;
            margin-bottom: 20px;
            color: var(--text-white);
            letter-spacing: -0.02em;
        }
        .hero h1 .highlight { color: var(--accent); }
        .hero p {
            font-size: 1.2rem;
            color: var(--text-light);
            max-width: 640px;
            margin-bottom: 32px;
            line-height: 1.7;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--accent);
            color: var(--bg-dark);
            font-weight: 700;
            font-size: 1rem;
            padding: 14px 34px;
            border-radius: 10px;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 4px 20px rgba(212, 168, 75, 0.25);
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(212, 168, 75, 0.35);
            color: var(--bg-dark);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: transparent;
            color: var(--text-white);
            font-weight: 600;
            font-size: 1rem;
            padding: 14px 30px;
            border-radius: 10px;
            border: 1px solid rgba(212, 168, 75, 0.3);
            cursor: pointer;
            transition: var(--transition);
            backdrop-filter: blur(4px);
        }
        .btn-secondary:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(212, 168, 75, 0.08);
            transform: translateY(-2px);
        }
        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid rgba(212, 168, 75, 0.12);
        }
        .hero-stat-item { text-align: left; }
        .hero-stat-item .num {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }
        .hero-stat-item .label {
            font-size: 0.85rem;
            color: var(--text-muted);
            letter-spacing: 0.3px;
        }

        /* ===== Section Spacing ===== */
        .section {
            padding: 90px 0;
        }
        .section-dark {
            background: var(--bg-section);
        }
        .section-border {
            border-top: 1px solid rgba(212, 168, 75, 0.06);
        }

        /* ===== Features / 核心优势 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 20px;
        }
        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 32px 24px 28px;
            transition: var(--transition);
            backdrop-filter: blur(6px);
        }
        .feature-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-hover);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .feature-icon {
            width: 52px;
            height: 52px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--accent-light);
            border-radius: 14px;
            font-size: 1.5rem;
            color: var(--accent);
            margin-bottom: 18px;
            transition: var(--transition);
        }
        .feature-card:hover .feature-icon {
            background: var(--accent);
            color: var(--bg-dark);
        }
        .feature-card h3 {
            font-size: 1.15rem;
            margin-bottom: 10px;
            color: var(--text-white);
        }
        .feature-card p {
            font-size: 0.92rem;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* ===== Scenarios / 适用场景 ===== */
        .scenarios-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            margin-top: 20px;
        }
        .scenario-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition);
        }
        .scenario-card:hover {
            transform: translateY(-6px);
            border-color: var(--border-hover);
            box-shadow: var(--shadow-lg);
        }
        .scenario-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .scenario-card:hover .scenario-img { transform: scale(1.04); }
        .scenario-body {
            padding: 24px 22px 28px;
        }
        .scenario-body h3 {
            font-size: 1.2rem;
            margin-bottom: 8px;
            color: var(--text-white);
        }
        .scenario-body p {
            font-size: 0.92rem;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.65;
        }
        .scenario-tag {
            display: inline-block;
            font-size: 0.72rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--accent);
            background: var(--accent-light);
            padding: 3px 12px;
            border-radius: 50px;
            margin-bottom: 12px;
        }

        /* ===== Process / 使用流程 ===== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            margin-top: 20px;
            position: relative;
        }
        .process-grid::before {
            content: '';
            position: absolute;
            top: 48px;
            left: 10%;
            right: 10%;
            height: 2px;
            background: linear-gradient(90deg, var(--accent), rgba(212,168,75,0.1));
            z-index: 0;
        }
        .process-step {
            position: relative;
            z-index: 1;
            text-align: center;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 32px 18px 28px;
            backdrop-filter: blur(6px);
            transition: var(--transition);
        }
        .process-step:hover {
            border-color: var(--border-hover);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .process-step .step-num {
            width: 52px;
            height: 52px;
            margin: 0 auto 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--accent);
            color: var(--bg-dark);
            font-weight: 800;
            font-size: 1.3rem;
            border-radius: 50%;
            transition: var(--transition);
        }
        .process-step:hover .step-num {
            transform: scale(1.08);
            box-shadow: 0 0 0 6px rgba(212,168,75,0.15);
        }
        .process-step h4 {
            font-size: 1.05rem;
            margin-bottom: 8px;
            color: var(--text-white);
        }
        .process-step p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 860px;
            margin: 20px auto 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: rgba(212,168,75,0.25); }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            color: var(--text-white);
            font-size: 1.02rem;
            font-weight: 600;
            padding: 20px 24px;
            text-align: left;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            transition: var(--transition);
        }
        .faq-question:hover { color: var(--accent); }
        .faq-question i {
            font-size: 0.85rem;
            color: var(--accent);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-question[aria-expanded="true"] i { transform: rotate(180deg); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-answer.open {
            max-height: 300px;
            padding: 0 24px 20px;
        }
        .faq-answer p { margin-bottom: 0; color: var(--text-light); }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            padding: 100px 0;
            overflow: hidden;
        }
        .cta-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            filter: brightness(0.25) saturate(1.2);
            z-index: 0;
            transform: scale(1.03);
            transition: transform 6s ease;
        }
        .cta-section:hover .cta-bg { transform: scale(1.07); }
        .cta-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 60% 50%, rgba(11,22,40,0.3) 0%, rgba(7,15,26,0.88) 70%);
            z-index: 1;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 2.6rem;
            font-weight: 800;
            max-width: 720px;
            margin: 0 auto 16px;
            color: var(--text-white);
        }
        .cta-section p {
            font-size: 1.1rem;
            color: var(--text-light);
            max-width: 560px;
            margin: 0 auto 32px;
        }
        .cta-section .btn-primary {
            font-size: 1.1rem;
            padding: 16px 44px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary);
            border-top: 1px solid rgba(212,168,75,0.06);
            padding: 60px 0 30px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .site-logo {
            font-size: 1.2rem;
            margin-bottom: 14px;
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-muted);
            max-width: 320px;
            line-height: 1.7;
        }
        .footer-col h5 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a {
            font-size: 0.88rem;
            color: var(--text-muted);
            transition: var(--transition);
        }
        .footer-col ul li a:hover { color: var(--accent); padding-left: 4px; }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 24px;
            border-top: 1px solid rgba(212,168,75,0.07);
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        .footer-bottom a { color: var(--text-muted); }
        .footer-bottom a:hover { color: var(--accent); }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            h1 { font-size: 2.8rem; }
            .hero h1 { font-size: 2.8rem; }
            .features-grid { grid-template-columns: repeat(2, 1fr); }
            .process-grid { grid-template-columns: repeat(2, 1fr); }
            .process-grid::before { display: none; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }

        @media (max-width: 820px) {
            .hero h1 { font-size: 2.2rem; }
            .hero p { font-size: 1rem; }
            .section-title { font-size: 1.8rem; }
            .scenarios-grid { grid-template-columns: 1fr; }
            .hero-stats { gap: 24px; flex-wrap: wrap; }
            .hero-stat-item .num { font-size: 1.6rem; }
            .cta-section h2 { font-size: 1.8rem; }
        }

        @media (max-width: 768px) {
            .nav-list { display: none; }
            .nav-toggle { display: flex; align-items: center; justify-content: center; }
            .nav-list.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 68px;
                left: 0;
                width: 100%;
                background: rgba(7,15,26,0.97);
                backdrop-filter: blur(14px);
                padding: 20px 24px;
                gap: 6px;
                border-bottom: 1px solid rgba(212,168,75,0.1);
            }
            .nav-list.open a { width: 100%; padding: 12px 16px; }
            .nav-list.open a.active::after { display: none; }
            .nav-list.open .nav-cta { text-align: center; }
            .hero { min-height: 80vh; }
            .hero h1 { font-size: 2rem; }
            .hero-stats { flex-direction: column; gap: 16px; }
            .hero-stat-item { display: flex; gap: 12px; align-items: baseline; }
            .features-grid { grid-template-columns: 1fr; }
            .process-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .section { padding: 60px 0; }
            .cta-section { padding: 60px 0; }
        }

        @media (max-width: 520px) {
            .container { padding: 0 16px; }
            h1 { font-size: 1.8rem; }
            .hero h1 { font-size: 1.7rem; }
            .section-title { font-size: 1.5rem; }
            .btn-primary, .btn-secondary { width: 100%; justify-content: center; }
            .hero-actions { flex-direction: column; }
            .hero-stats { margin-top: 32px; padding-top: 24px; }
            .feature-card { padding: 24px 18px 22px; }
            .scenario-body { padding: 18px 16px 22px; }
            .process-step { padding: 24px 14px 22px; }
            .faq-question { font-size: 0.95rem; padding: 16px 18px; }
            .faq-answer.open { padding: 0 18px 16px; }
            .cta-section h2 { font-size: 1.5rem; }
        }

        /* ===== Utility ===== */
        .text-center { text-align: center; }
        .mt-1 { margin-top: 1rem; }
        .mt-2 { margin-top: 2rem; }
        .mb-1 { margin-bottom: 1rem; }
        .mb-2 { margin-bottom: 2rem; }
        .fade-in { animation: fadeIn 0.8s ease forwards; }
        @keyframes fadeIn { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

        /* Foundation overrides */
        .grid-x { margin-left: 0; margin-right: 0; }
        .cell { padding: 0; }
        .button { margin-bottom: 0; }