/* roulang page: index */
/* ===== CSS 设计变量 ===== */
        :root {
            --primary: #1a1a1a;
            --primary-light: #2a2a2a;
            --accent: #c9a84c;
            --accent-light: #d4af37;
            --accent-dark: #b8962e;
            --bg: #f5f3ef;
            --bg-card: #ffffff;
            --text-primary: #222222;
            --text-secondary: #6b6b6b;
            --text-light: #999999;
            --text-reverse: #ffffff;
            --border: #e0ded5;
            --border-card: #ececec;
            --shadow-card: 0 4px 20px rgba(0,0,0,0.06);
            --shadow-card-hover: 0 8px 30px rgba(0,0,0,0.10);
            --radius-card: 12px;
            --radius-btn: 6px;
            --radius-img: 8px;
            --transition: 0.3s ease;
            --font-title: 'Noto Sans SC', 'Helvetica Neue', sans-serif;
            --font-body: 'Noto Serif SC', 'Georgia', serif;
            --max-width: 1200px;
            --header-brand-bg: #111111;
            --header-channel-bg: #f5f3ef;
            --footer-bg: #1a1a1a;
            --gold-light: #f0e6c8;
        }

        /* ===== 基础 Reset ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; font-size: 16px; }
        body {
            font-family: var(--font-body);
            color: var(--text-primary);
            background: var(--bg);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a { color: inherit; text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--accent); text-decoration: underline; }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-img); }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { font-family: var(--font-title); font-weight: 700; line-height: 1.3; color: var(--text-primary); }
        h1 { font-size: 3.2rem; }
        h2 { font-size: 2.2rem; }
        h3 { font-size: 1.6rem; }
        h4 { font-size: 1.2rem; }
        p { margin-bottom: 1rem; color: var(--text-secondary); }
        button, input, textarea { font-family: var(--font-title); }
        .container { max-width: var(--max-width); margin: 0 auto; padding: 0 1rem; }

        /* ===== Foundation 覆盖 ===== */
        .grid-x { margin-left: -0.75rem; margin-right: -0.75rem; }
        .cell { padding-left: 0.75rem; padding-right: 0.75rem; }
        .grid-margin-x > .cell { margin-bottom: 1.5rem; }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
            box-shadow: 0 2px 12px rgba(0,0,0,0.08);
            font-family: var(--font-title);
        }
        .header-brand {
            background: var(--header-brand-bg);
            padding: 0.7rem 0;
            border-bottom: 1px solid rgba(255,255,255,0.06);
        }
        .header-brand .container {
            display: flex; align-items: center; justify-content: space-between;
        }
        .logo {
            font-size: 1.5rem; font-weight: 900; color: var(--accent);
            letter-spacing: 0.5px; text-decoration: none !important;
        }
        .logo:hover { color: var(--accent-light); }
        .header-brand-links {
            display: flex; align-items: center; gap: 1.5rem;
        }
        .header-brand-links a {
            color: rgba(255,255,255,0.8); font-size: 0.9rem; font-weight: 400;
            transition: color var(--transition);
        }
        .header-brand-links a:hover { color: var(--accent); text-decoration: none; }
        .header-channel {
            background: var(--header-channel-bg);
            border-bottom: 1px solid var(--border);
        }
        .header-channel .container {
            display: flex; align-items: center; justify-content: center;
            flex-wrap: wrap; gap: 0;
        }
        .channel-nav {
            display: flex; align-items: center; flex-wrap: wrap;
        }
        .channel-nav a {
            display: inline-block; padding: 0.7rem 1.2rem;
            font-size: 0.95rem; font-weight: 500; color: var(--text-primary);
            position: relative; transition: color var(--transition);
            text-decoration: none !important;
        }
        .channel-nav a::after {
            content: ''; position: absolute; bottom: 0; left: 50%;
            width: 0; height: 3px; background: var(--accent);
            transform: translateX(-50%); transition: width var(--transition);
            border-radius: 2px;
        }
        .channel-nav a:hover::after,
        .channel-nav a.active::after { width: 60%; }
        .channel-nav a:hover { color: var(--accent-dark); }
        .channel-nav a.active { color: var(--accent-dark); font-weight: 700; }
        .mobile-menu-toggle {
            display: none; background: none; border: none;
            color: rgba(255,255,255,0.9); font-size: 1.5rem; cursor: pointer;
            padding: 0.3rem 0.6rem;
        }
        .mobile-menu-toggle:focus { outline: 2px solid var(--accent); }

        /* ===== Hero ===== */
        .hero {
            position: relative; min-height: 90vh;
            display: flex; align-items: center; justify-content: center;
            text-align: center;
            background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%);
            overflow: hidden; margin-top: 0; padding-top: 120px;
        }
        .hero-bg {
            position: absolute; top: 0; left: 0; width: 100%; height: 100%;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.35; z-index: 1;
        }
        .hero-overlay {
            position: absolute; top: 0; left: 0; width: 100%; height: 100%;
            background: linear-gradient(180deg, rgba(26,26,26,0.85) 0%, rgba(42,42,42,0.70) 100%);
            z-index: 2;
        }
        .hero-content {
            position: relative; z-index: 3; max-width: 900px; padding: 2rem 1.5rem;
        }
        .hero h1 {
            font-size: 4rem; font-weight: 900; color: var(--text-reverse);
            margin-bottom: 1.2rem; letter-spacing: 1px; line-height: 1.2;
        }
        .hero h1 .highlight { color: var(--accent); }
        .hero-sub {
            font-size: 1.3rem; font-weight: 300; color: rgba(255,255,255,0.85);
            margin-bottom: 2.5rem; max-width: 700px; margin-left: auto; margin-right: auto;
            line-height: 1.6;
        }
        .hero-cta {
            display: inline-flex; align-items: center; gap: 0.6rem;
            padding: 0.9rem 2.5rem; border: 2px solid var(--accent);
            border-radius: var(--radius-btn); background: transparent;
            color: var(--text-reverse); font-size: 1.1rem; font-weight: 600;
            cursor: pointer; transition: all var(--transition);
            text-decoration: none !important;
        }
        .hero-cta:hover {
            background: var(--accent); color: #111; transform: scale(1.02);
            box-shadow: 0 4px 20px rgba(201,168,76,0.3);
        }
        .hero-cta i { transition: transform var(--transition); }
        .hero-cta:hover i { transform: translateX(4px); }

        /* ===== 板块通用 ===== */
        .section { padding: 5rem 0; }
        .section-alt { background: var(--bg-card); }
        .section-dark { background: var(--primary); color: var(--text-reverse); }
        .section-title {
            text-align: center; margin-bottom: 3rem;
        }
        .section-title h2 {
            font-size: 2.2rem; font-weight: 700; margin-bottom: 0.6rem;
            position: relative; display: inline-block;
        }
        .section-title h2::after {
            content: ''; display: block; width: 60px; height: 3px;
            background: var(--accent); margin: 0.8rem auto 0;
            border-radius: 2px;
        }
        .section-title p {
            font-size: 1.1rem; color: var(--text-secondary); max-width: 650px;
            margin: 0.8rem auto 0;
        }

        /* ===== 痛点区 ===== */
        .pain-points {
            display: flex; align-items: center; gap: 3rem;
        }
        .pain-image { flex: 0 0 45%; }
        .pain-image img { border-radius: var(--radius-card); box-shadow: var(--shadow-card); width: 100%; }
        .pain-text { flex: 1; }
        .pain-text h3 { font-size: 1.8rem; margin-bottom: 1.2rem; }
        .pain-list { margin: 1.5rem 0; }
        .pain-list li {
            display: flex; align-items: flex-start; gap: 0.8rem;
            padding: 0.6rem 0; font-size: 1rem; color: var(--text-secondary);
            border-bottom: 1px solid var(--border);
        }
        .pain-list li:last-child { border-bottom: none; }
        .pain-list li i { color: var(--accent); font-size: 1.2rem; margin-top: 0.2rem; flex-shrink: 0; }

        /* ===== 解决方案区 (2列卡片) ===== */
        .solution-grid {
            display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem;
        }
        .solution-card {
            background: var(--bg-card); border-radius: var(--radius-card);
            padding: 2rem 1.8rem; border: 1px solid var(--border-card);
            box-shadow: var(--shadow-card); transition: all var(--transition);
        }
        .solution-card:hover {
            transform: translateY(-4px); box-shadow: var(--shadow-card-hover);
        }
        .solution-card .icon {
            font-size: 2.2rem; color: var(--accent); margin-bottom: 1rem;
        }
        .solution-card h4 { font-size: 1.3rem; margin-bottom: 0.6rem; }
        .solution-card p { font-size: 0.95rem; color: var(--text-secondary); margin-bottom: 0; }

        /* ===== 成果展示区 ===== */
        .stats-grid {
            display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem;
            text-align: center;
        }
        .stat-item { padding: 1.5rem; }
        .stat-number {
            font-size: 3.2rem; font-weight: 900; color: var(--accent);
            font-family: var(--font-title); line-height: 1.2;
        }
        .stat-label { font-size: 1rem; color: var(--text-secondary); margin-top: 0.5rem; }
        .stat-desc { font-size: 0.9rem; color: var(--text-light); margin-top: 0.3rem; }

        /* ===== 客户证言区 ===== */
        .testimonial-grid {
            display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem;
        }
        .testimonial-card {
            background: var(--bg-card); border-radius: var(--radius-card);
            padding: 2rem 1.5rem; border-left: 4px solid var(--accent);
            box-shadow: var(--shadow-card); transition: all var(--transition);
        }
        .testimonial-card:hover {
            transform: translateY(-4px); box-shadow: var(--shadow-card-hover);
        }
        .testimonial-card .avatar {
            width: 56px; height: 56px; border-radius: 50%;
            background: var(--bg); display: flex; align-items: center; justify-content: center;
            font-size: 1.8rem; color: var(--accent); margin-bottom: 1rem;
            overflow: hidden;
        }
        .testimonial-card .avatar img { width: 100%; height: 100%; object-fit: cover; }
        .testimonial-card blockquote {
            font-size: 0.95rem; font-style: italic; color: var(--text-secondary);
            line-height: 1.7; margin-bottom: 1rem; padding: 0;
            border: none;
        }
        .testimonial-card blockquote::before {
            content: '\201C'; font-size: 2.5rem; color: var(--accent);
            font-family: serif; line-height: 0; vertical-align: -0.4em; margin-right: 0.2rem;
        }
        .testimonial-author { display: flex; align-items: center; gap: 0.8rem; }
        .testimonial-author .name { font-weight: 700; font-size: 0.95rem; color: var(--text-primary); }
        .testimonial-author .title { font-size: 0.85rem; color: var(--text-light); }

        /* ===== 最新信息板块 (CMS) ===== */
        .news-grid {
            display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem;
        }
        .news-card {
            background: var(--bg-card); border-radius: var(--radius-card);
            overflow: hidden; border: 1px solid var(--border-card);
            box-shadow: var(--shadow-card); transition: all var(--transition);
            display: flex; flex-direction: column; cursor: pointer;
        }
        .news-card:hover {
            transform: translateY(-4px); box-shadow: var(--shadow-card-hover);
        }
        .news-card .thumb {
            width: 100%; height: 180px; overflow: hidden; position: relative;
        }
        .news-card .thumb img {
            width: 100%; height: 100%; object-fit: cover;
            transition: transform 0.4s ease; border-radius: 0;
        }
        .news-card:hover .thumb img { transform: scale(1.05); }
        .news-card .body { padding: 1.2rem 1.2rem 1.5rem; flex: 1; display: flex; flex-direction: column; }
        .news-card .body .tag {
            display: inline-block; padding: 0.2rem 0.7rem;
            background: var(--accent); color: #111; font-size: 0.75rem;
            font-weight: 600; border-radius: 3px; margin-bottom: 0.6rem;
            align-self: flex-start; font-family: var(--font-title);
        }
        .news-card .body h3 {
            font-size: 1rem; font-weight: 700; margin-bottom: 0.5rem;
            line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2;
            -webkit-box-orient: vertical; overflow: hidden;
        }
        .news-card .body .summary {
            font-size: 0.85rem; color: var(--text-secondary); line-height: 1.6;
            display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical;
            overflow: hidden; flex: 1; margin-bottom: 0.8rem;
        }
        .news-card .body .meta {
            display: flex; justify-content: space-between; align-items: center;
            font-size: 0.8rem; color: var(--text-light);
            border-top: 1px solid var(--border); padding-top: 0.6rem;
        }
        .news-card .body .meta .date { font-size: 0.8rem; }
        .news-empty {
            grid-column: 1 / -1; text-align: center; padding: 3rem 1rem;
            color: var(--text-secondary);
        }
        .news-empty svg { width: 80px; height: 80px; margin-bottom: 1rem; opacity: 0.4; }
        .news-empty p { font-size: 1.1rem; font-weight: 500; }

        /* ===== CTA 尾区 ===== */
        .cta-section {
            background: var(--primary); padding: 4rem 0;
            text-align: center; position: relative; overflow: hidden;
        }
        .cta-section::before {
            content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08; z-index: 1;
        }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-section h2 {
            color: var(--text-reverse); font-size: 2.4rem; margin-bottom: 0.8rem;
        }
        .cta-section .sub {
            color: var(--accent); font-size: 1.1rem; font-weight: 300;
            margin-bottom: 2rem;
        }
        .cta-btn {
            display: inline-flex; align-items: center; gap: 0.6rem;
            padding: 0.9rem 2.5rem; border: 2px solid var(--accent);
            border-radius: var(--radius-btn); background: transparent;
            color: var(--text-reverse); font-size: 1.1rem; font-weight: 600;
            cursor: pointer; transition: all var(--transition);
            text-decoration: none !important;
        }
        .cta-btn:hover {
            background: var(--accent); color: #111; transform: scale(1.02);
            box-shadow: 0 4px 20px rgba(201,168,76,0.3);
        }
        .cta-btn i { transition: transform var(--transition); }
        .cta-btn:hover i { transform: translateX(4px); }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--footer-bg); color: rgba(255,255,255,0.7);
            padding: 3rem 0 1.5rem; font-family: var(--font-title);
        }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 2rem; margin-bottom: 2rem; }
        .footer-brand .logo { font-size: 1.3rem; margin-bottom: 0.8rem; display: inline-block; }
        .footer-brand p { font-size: 0.9rem; color: rgba(255,255,255,0.6); max-width: 360px; }
        .footer-col h4 { color: var(--text-reverse); font-size: 1rem; margin-bottom: 1rem; font-weight: 600; }
        .footer-col ul li { margin-bottom: 0.4rem; }
        .footer-col ul li a { color: rgba(255,255,255,0.6); font-size: 0.9rem; transition: color var(--transition); text-decoration: none; }
        .footer-col ul li a:hover { color: var(--accent); }
        .footer-col .contact-item { display: flex; align-items: center; gap: 0.5rem; font-size: 0.9rem; color: rgba(255,255,255,0.6); margin-bottom: 0.5rem; }
        .footer-col .contact-item i { color: var(--accent); width: 1rem; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 1.2rem; text-align: center;
            font-size: 0.85rem; color: rgba(255,255,255,0.4);
        }
        .footer-bottom a { color: rgba(255,255,255,0.5); text-decoration: none; }
        .footer-bottom a:hover { color: var(--accent); }

        /* ===== 滚动动画 ===== */
        .fade-in {
            opacity: 0; transform: translateY(20px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }
        .fade-in.visible { opacity: 1; transform: translateY(0); }

        /* ===== 响应式 ===== */
        @media screen and (max-width: 1024px) {
            h1 { font-size: 2.8rem; }
            .hero h1 { font-size: 3.2rem; }
            .hero { min-height: 80vh; padding-top: 110px; }
            .stats-grid { grid-template-columns: repeat(3, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media screen and (max-width: 768px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            .hero h1 { font-size: 2.4rem; }
            .hero-sub { font-size: 1.05rem; }
            .hero { min-height: 70vh; padding-top: 100px; }
            .section { padding: 3rem 0; }
            .pain-points { flex-direction: column; }
            .pain-image { flex: 0 0 100%; }
            .solution-grid { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: repeat(3, 1fr); gap: 1rem; }
            .stat-number { font-size: 2.4rem; }
            .testimonial-grid { grid-template-columns: 1fr; }
            .news-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }
            .header-channel .container { justify-content: flex-start; overflow-x: auto; }
            .channel-nav a { padding: 0.5rem 0.9rem; font-size: 0.85rem; white-space: nowrap; }
            .header-brand-links a { font-size: 0.8rem; }
            .logo { font-size: 1.2rem; }
            .mobile-menu-toggle { display: block; }
            .header-brand-links .nav-links { display: none; }
            .cta-section h2 { font-size: 1.8rem; }
        }
        @media screen and (max-width: 520px) {
            h1 { font-size: 1.8rem; }
            .hero h1 { font-size: 1.9rem; }
            .hero-sub { font-size: 0.95rem; }
            .hero { min-height: 60vh; padding-top: 90px; }
            .hero-cta { padding: 0.7rem 1.8rem; font-size: 0.95rem; }
            .section-title h2 { font-size: 1.6rem; }
            .stat-number { font-size: 1.8rem; }
            .stat-label { font-size: 0.85rem; }
            .news-card .thumb { height: 140px; }
            .footer-bottom { font-size: 0.75rem; }
            .cta-btn { padding: 0.7rem 1.8rem; font-size: 0.95rem; }
        }
        @media screen and (max-width: 400px) {
            .stats-grid { grid-template-columns: 1fr; }
        }

        /* ===== 辅助 ===== */
        .text-accent { color: var(--accent); }
        .text-center { text-align: center; }
        .mt-1 { margin-top: 1rem; }
        .mb-1 { margin-bottom: 1rem; }
        .gap-1 { gap: 1rem; }

/* roulang page: article */
/* ===== CSS Variables ===== */
        :root {
            --primary: #1a1a1a;
            --primary-light: #2a2a2a;
            --accent: #c9a84c;
            --accent-hover: #d4af37;
            --accent-dark: #b8942f;
            --bg: #f5f3ef;
            --bg-white: #ffffff;
            --bg-card: #ffffff;
            --bg-dark: #1a1a1a;
            --text: #222222;
            --text-secondary: #6b6b6b;
            --text-light: #888888;
            --text-white: #ffffff;
            --border: #e0ded5;
            --border-light: #ececec;
            --radius-sm: 6px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
            --shadow-md: 0 4px 20px rgba(0,0,0,0.06);
            --shadow-lg: 0 8px 30px rgba(0,0,0,0.10);
            --shadow-hover: 0 8px 30px rgba(0,0,0,0.12);
            --transition: 0.3s ease-out;
            --font-sans: 'Noto Sans SC', 'Helvetica Neue', Arial, sans-serif;
            --font-serif: 'Noto Serif SC', Georgia, 'Times New Roman', serif;
            --max-width: 1200px;
            --header-top: 56px;
            --header-full: 104px;
        }

        /* ===== Reset ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; font-size: 16px; }
        body { font-family: var(--font-serif); color: var(--text); background: var(--bg); line-height: 1.6; -webkit-font-smoothing: antialiased; }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-md); }
        a { color: var(--text); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent-dark); }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { font-family: var(--font-sans); font-weight: 700; line-height: 1.3; color: var(--text); }
        .container { max-width: var(--max-width); margin: 0 auto; padding: 0 1rem; }
        .section-padding { padding: 5rem 0; }
        @media (max-width: 640px) { .section-padding { padding: 3rem 0; } }

        /* ===== Foundation Overrides ===== */
        .grid-container { max-width: var(--max-width); padding-left: 1rem; padding-right: 1rem; }
        .grid-x { margin-left: -0.75rem; margin-right: -0.75rem; }
        .cell { padding-left: 0.75rem; padding-right: 0.75rem; }

        /* ===== Header & Navigation ===== */
        .site-header { position: fixed; top: 0; left: 0; width: 100%; z-index: 1000; box-shadow: 0 2px 12px rgba(0,0,0,0.08); }
        .header-brand { background: var(--bg-dark); padding: 0.65rem 0; }
        .header-brand .container { display: flex; align-items: center; justify-content: space-between; }
        .logo { font-family: var(--font-sans); font-size: 1.5rem; font-weight: 900; color: var(--accent); letter-spacing: 1px; }
        .logo:hover { color: var(--accent-hover); }
        .header-brand-links { display: flex; align-items: center; gap: 1.5rem; }
        .header-brand-links .nav-links a { color: rgba(255,255,255,0.8); font-family: var(--font-sans); font-size: 0.9rem; font-weight: 400; transition: var(--transition); }
        .header-brand-links .nav-links a:hover { color: var(--accent); }
        .mobile-menu-toggle { display: none; background: none; border: none; color: #fff; font-size: 1.4rem; cursor: pointer; padding: 0.25rem; }
        .header-channel { background: var(--bg-white); border-bottom: 1px solid var(--border); }
        .channel-nav { display: flex; align-items: center; gap: 0; padding: 0; }
        .channel-nav a { display: inline-block; padding: 0.85rem 1.2rem; font-family: var(--font-sans); font-size: 0.95rem; font-weight: 500; color: var(--text-secondary); border-bottom: 3px solid transparent; transition: var(--transition); white-space: nowrap; }
        .channel-nav a:hover { color: var(--text); border-bottom-color: var(--accent); }
        .channel-nav a.active { color: var(--text); border-bottom-color: var(--accent); font-weight: 600; }

        @media (max-width: 768px) {
            .header-brand-links .nav-links { display: none; }
            .mobile-menu-toggle { display: inline-block; }
            .channel-nav { display: none; flex-direction: column; width: 100%; background: var(--bg-white); border-top: 1px solid var(--border); }
            .channel-nav.is-open { display: flex; }
            .channel-nav a { width: 100%; padding: 0.75rem 1.2rem; border-bottom: 1px solid var(--border-light); }
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-wrap { background: #f8f8f8; padding: 0.75rem 0; border-bottom: 1px solid var(--border); margin-top: var(--header-full); }
        .breadcrumb-wrap .breadcrumb { font-family: var(--font-sans); font-size: 0.85rem; color: var(--text-light); }
        .breadcrumb-wrap .breadcrumb a { color: #888; }
        .breadcrumb-wrap .breadcrumb a:hover { color: var(--accent-dark); }
        .breadcrumb-wrap .breadcrumb span { color: var(--text-secondary); }

        /* ===== Article Main ===== */
        .article-main { padding: 3rem 0 4rem; }
        .article-container { max-width: 780px; margin: 0 auto; }
        .article-header { margin-bottom: 2rem; }
        .article-header h1 { font-family: var(--font-sans); font-size: 2.2rem; font-weight: 700; color: var(--text); line-height: 1.35; margin-bottom: 1rem; }
        .article-meta { display: flex; flex-wrap: wrap; gap: 1.2rem; font-family: var(--font-sans); font-size: 0.9rem; color: var(--text-light); align-items: center; }
        .article-meta .meta-cat { display: inline-block; background: var(--accent); color: #1a1a1a; padding: 0.2rem 0.8rem; border-radius: 4px; font-weight: 600; font-size: 0.8rem; }
        .article-meta .meta-date i { margin-right: 0.3rem; }
        .article-body { font-family: var(--font-serif); font-size: 1.05rem; line-height: 1.8; color: var(--text); }
        .article-body p { margin-bottom: 1.5em; }
        .article-body h2 { font-family: var(--font-sans); font-size: 1.6rem; font-weight: 700; color: #222; margin-top: 2em; margin-bottom: 0.8em; }
        .article-body h3 { font-family: var(--font-sans); font-size: 1.3rem; font-weight: 700; color: #222; margin-top: 1.8em; margin-bottom: 0.6em; }
        .article-body h4 { font-family: var(--font-sans); font-size: 1.1rem; font-weight: 700; color: #222; margin-top: 1.5em; margin-bottom: 0.5em; }
        .article-body img { max-width: 100%; border-radius: var(--radius-md); margin: 1.5em auto; display: block; }
        .article-body ul, .article-body ol { margin-bottom: 1.5em; padding-left: 1.8em; }
        .article-body ul li { list-style: disc; margin-bottom: 0.4em; }
        .article-body ol li { list-style: decimal; margin-bottom: 0.4em; }
        .article-body blockquote { border-left: 4px solid var(--accent); padding: 1rem 1.5rem; margin: 1.5em 0; background: var(--bg); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; font-style: italic; color: var(--text-secondary); }
        .article-body a { color: var(--accent-dark); text-decoration: underline; }
        .article-body a:hover { color: var(--accent-hover); }

        /* ===== Article Footer ===== */
        .article-footer-actions { margin-top: 3rem; padding-top: 2rem; border-top: 1px solid var(--border); display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; align-items: center; }
        .btn-back { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.7rem 1.8rem; border: 2px solid var(--accent); background: transparent; color: var(--accent-dark); font-family: var(--font-sans); font-weight: 600; font-size: 0.95rem; border-radius: var(--radius-sm); cursor: pointer; transition: var(--transition); }
        .btn-back:hover { background: var(--accent); color: #1a1a1a; border-color: var(--accent); transform: scale(1.02); }
        .btn-back i { font-size: 0.9rem; }

        /* ===== Related Posts ===== */
        .related-section { padding: 3rem 0 4rem; background: var(--bg); }
        .related-section .section-title { font-family: var(--font-sans); font-size: 1.8rem; font-weight: 700; color: var(--text); text-align: center; margin-bottom: 2.5rem; }
        .related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
        .related-card { background: var(--bg-white); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid var(--border-light); transition: var(--transition); cursor: pointer; }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
        .related-card .card-img { width: 100%; height: 160px; object-fit: cover; border-radius: 0; }
        .related-card .card-img:hover { transform: scale(1.05); }
        .related-card .card-body { padding: 1rem 1.2rem 1.2rem; }
        .related-card .card-body h3 { font-family: var(--font-sans); font-size: 1rem; font-weight: 600; color: var(--text); margin-bottom: 0.4rem; line-height: 1.4; }
        .related-card .card-body .card-date { font-size: 0.8rem; color: var(--text-light); font-family: var(--font-sans); }

        @media (max-width: 768px) {
            .related-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 520px) {
            .related-grid { grid-template-columns: 1fr; }
            .article-header h1 { font-size: 1.6rem; }
            .article-body { font-size: 1rem; }
        }

        /* ===== Not Found ===== */
        .not-found-box { text-align: center; padding: 4rem 2rem; }
        .not-found-box .nf-icon { font-size: 3rem; color: var(--text-light); margin-bottom: 1rem; }
        .not-found-box h2 { font-family: var(--font-sans); font-size: 1.6rem; color: var(--text); margin-bottom: 0.8rem; }
        .not-found-box p { color: var(--text-secondary); margin-bottom: 1.5rem; }
        .not-found-box .btn-home { display: inline-block; padding: 0.7rem 2rem; background: var(--accent); color: #1a1a1a; border-radius: var(--radius-sm); font-family: var(--font-sans); font-weight: 600; transition: var(--transition); }
        .not-found-box .btn-home:hover { background: var(--accent-hover); transform: scale(1.02); }

        /* ===== Footer ===== */
        .site-footer { background: var(--bg-dark); color: rgba(255,255,255,0.8); padding: 4rem 0 0; }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1.5fr; gap: 2.5rem; margin-bottom: 2.5rem; }
        .footer-brand .logo { font-size: 1.4rem; margin-bottom: 1rem; display: inline-block; }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; color: rgba(255,255,255,0.6); font-family: var(--font-serif); }
        .footer-col h4 { font-family: var(--font-sans); font-size: 1rem; font-weight: 600; color: #fff; margin-bottom: 1.2rem; }
        .footer-col ul li { margin-bottom: 0.6rem; }
        .footer-col ul li a { color: rgba(255,255,255,0.65); font-size: 0.9rem; font-family: var(--font-sans); }
        .footer-col ul li a:hover { color: var(--accent); }
        .contact-item { margin-bottom: 0.6rem; font-size: 0.9rem; color: rgba(255,255,255,0.65); font-family: var(--font-sans); }
        .contact-item i { width: 1.4rem; color: var(--accent); margin-right: 0.3rem; }
        .footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 1.5rem 0; text-align: center; font-size: 0.85rem; color: rgba(255,255,255,0.4); font-family: var(--font-sans); }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: var(--accent); }

        @media (max-width: 768px) {
            .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
            .article-container { padding: 0 0.5rem; }
        }

        /* ===== Scroll Animation ===== */
        .fade-up { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease-out, transform 0.6s ease-out; }
        .fade-up.visible { opacity: 1; transform: translateY(0); }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #1a1a1a;
            --accent: #c9a84c;
            --accent-light: #d4af37;
            --accent-dark: #b8942e;
            --bg: #f5f3ef;
            --bg-card: #ffffff;
            --text: #222222;
            --text-secondary: #6b6b6b;
            --text-light: #999999;
            --text-reverse: #ffffff;
            --border: #e0ded5;
            --border-card: #ececec;
            --shadow: 0 4px 20px rgba(0,0,0,0.06);
            --shadow-hover: 0 8px 30px rgba(0,0,0,0.10);
            --radius: 12px;
            --radius-sm: 8px;
            --radius-btn: 6px;
            --transition: 0.3s ease;
            --font-sans: 'Noto Sans SC', 'Helvetica Neue', sans-serif;
            --font-serif: 'Noto Serif SC', 'Georgia', serif;
            --container: 1200px;
            --spacing: 5rem;
            --spacing-mobile: 3rem;
        }

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

        /* ===== Container ===== */
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 1.5rem;
        }

        /* ===== Typography ===== */
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-sans);
            font-weight: 700;
            color: var(--text);
            line-height: 1.3;
        }
        h1 {
            font-size: 3.2rem;
        }
        h2 {
            font-size: 2.2rem;
            margin-bottom: 1rem;
        }
        h3 {
            font-size: 1.6rem;
            margin-bottom: 0.75rem;
        }
        h4 {
            font-size: 1.2rem;
            margin-bottom: 0.5rem;
        }
        p {
            margin-bottom: 1rem;
            color: var(--text-secondary);
            font-size: 1rem;
            line-height: 1.8;
        }
        .text-accent {
            color: var(--accent);
        }
        .text-center {
            text-align: center;
        }
        .text-reverse {
            color: var(--text-reverse);
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-block;
            font-family: var(--font-sans);
            font-weight: 600;
            font-size: 1rem;
            padding: 0.8rem 2rem;
            border-radius: var(--radius-btn);
            border: 2px solid var(--accent);
            background: transparent;
            color: var(--text-reverse);
            cursor: pointer;
            transition: background var(--transition), color var(--transition), transform var(--transition), box-shadow var(--transition);
            text-align: center;
            line-height: 1.4;
        }
        .btn:hover {
            background: var(--accent-light);
            color: #111;
            transform: scale(1.02);
            text-decoration: none;
            box-shadow: 0 4px 16px rgba(201, 168, 76, 0.35);
        }
        .btn:focus-visible {
            outline: 3px solid var(--accent-light);
            outline-offset: 2px;
        }
        .btn-primary {
            background: var(--accent);
            color: #111;
            border-color: var(--accent);
        }
        .btn-primary:hover {
            background: var(--accent-light);
            border-color: var(--accent-light);
        }
        .btn-outline-light {
            border-color: var(--text-reverse);
            color: var(--text-reverse);
        }
        .btn-outline-light:hover {
            background: var(--text-reverse);
            color: var(--primary);
        }

        /* ===== Header / Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 100;
            box-shadow: 0 2px 12px rgba(0,0,0,0.08);
            font-family: var(--font-sans);
        }
        .header-brand {
            background: var(--primary);
            color: var(--text-reverse);
            padding: 0.6rem 0;
        }
        .header-brand .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .header-brand .logo {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 0.5px;
            text-decoration: none;
            white-space: nowrap;
        }
        .header-brand .logo:hover {
            color: var(--accent-light);
            text-decoration: none;
        }
        .header-brand-links {
            display: flex;
            align-items: center;
            gap: 1.2rem;
        }
        .header-brand-links .nav-links a {
            color: rgba(255,255,255,0.75);
            font-size: 0.9rem;
            font-weight: 400;
            transition: color var(--transition);
            text-decoration: none;
            margin-left: 1.2rem;
        }
        .header-brand-links .nav-links a:hover {
            color: var(--accent);
        }
        .mobile-menu-toggle {
            background: none;
            border: none;
            color: var(--text-reverse);
            font-size: 1.3rem;
            cursor: pointer;
            display: none;
            padding: 0.3rem 0.5rem;
        }
        .header-channel {
            background: #faf9f6;
            border-bottom: 1px solid var(--border);
            padding: 0.4rem 0;
        }
        .header-channel .container {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .channel-nav {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 0.2rem;
        }
        .channel-nav a {
            display: inline-block;
            padding: 0.5rem 1.2rem;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 4px 4px 0 0;
            position: relative;
            text-decoration: none;
            transition: color var(--transition), background var(--transition);
            border-bottom: 3px solid transparent;
        }
        .channel-nav a:hover {
            color: var(--text);
            background: rgba(201,168,76,0.08);
            text-decoration: none;
            border-bottom-color: var(--accent);
        }
        .channel-nav a.active {
            color: var(--primary);
            font-weight: 600;
            border-bottom-color: var(--accent);
            background: rgba(201,168,76,0.06);
        }
        .channel-nav a.active:hover {
            background: rgba(201,168,76,0.10);
        }
        .channel-nav a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== Hero ===== */
        .hero {
            margin-top: 108px;
            min-height: 70vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 50%, #1a1a1a 100%);
            position: relative;
            overflow: hidden;
            padding: 4rem 0;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.2;
            z-index: 0;
        }
        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(26,26,26,0.55);
            z-index: 1;
        }
        .hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 800px;
        }
        .hero h1 {
            color: var(--text-reverse);
            font-size: 3.6rem;
            font-weight: 900;
            margin-bottom: 1.2rem;
            text-shadow: 0 2px 20px rgba(0,0,0,0.3);
        }
        .hero h1 .highlight {
            color: var(--accent);
        }
        .hero .subtitle {
            color: rgba(255,255,255,0.85);
            font-size: 1.25rem;
            font-weight: 300;
            margin-bottom: 2rem;
            max-width: 680px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.7;
        }
        .hero .btn {
            font-size: 1.1rem;
            padding: 0.9rem 2.8rem;
        }
        .hero-badge {
            display: inline-block;
            background: rgba(201,168,76,0.18);
            color: var(--accent-light);
            padding: 0.3rem 1.2rem;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 1.5rem;
            border: 1px solid rgba(201,168,76,0.3);
            font-family: var(--font-sans);
            letter-spacing: 1px;
        }

        /* ===== Common Sections ===== */
        .section {
            padding: var(--spacing) 0;
        }
        .section-alt {
            background: var(--bg-card);
        }
        .section-dark {
            background: var(--primary);
            color: var(--text-reverse);
        }
        .section-dark h2,
        .section-dark h3,
        .section-dark h4 {
            color: var(--text-reverse);
        }
        .section-dark p {
            color: rgba(255,255,255,0.75);
        }
        .section-title {
            text-align: center;
            margin-bottom: 3rem;
        }
        .section-title h2 {
            font-size: 2.4rem;
            font-weight: 700;
            margin-bottom: 0.6rem;
        }
        .section-title .lead {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
            font-family: var(--font-sans);
            font-weight: 300;
        }
        .section-dark .section-title .lead {
            color: rgba(255,255,255,0.65);
        }

        /* ===== Grid / Cards ===== */
        .grid-x {
            display: flex;
            flex-flow: row wrap;
            margin: -0.75rem;
        }
        .grid-x>.cell {
            padding: 0.75rem;
            flex: 0 0 auto;
        }
        .large-6 {
            width: 50%;
        }
        .large-4 {
            width: 33.3333%;
        }
        .large-3 {
            width: 25%;
        }
        .medium-6 {
            width: 50%;
        }
        .small-12 {
            width: 100%;
        }
        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-card);
            box-shadow: var(--shadow);
            padding: 2rem 1.5rem;
            transition: transform var(--transition), box-shadow var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .card .card-icon {
            font-size: 2.4rem;
            color: var(--accent);
            margin-bottom: 1rem;
        }
        .card h3 {
            font-size: 1.3rem;
            font-weight: 600;
            margin-bottom: 0.6rem;
        }
        .card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
        }
        .card .card-tag {
            display: inline-block;
            background: rgba(201,168,76,0.12);
            color: var(--accent-dark);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.2rem 0.8rem;
            border-radius: 20px;
            margin-bottom: 0.8rem;
            font-family: var(--font-sans);
        }

        /* ===== Image & Text Block ===== */
        .image-text-block {
            display: flex;
            align-items: center;
            gap: 3rem;
            flex-wrap: wrap;
        }
        .image-text-block .block-image {
            flex: 1 1 45%;
            min-width: 280px;
        }
        .image-text-block .block-image img {
            width: 100%;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .image-text-block .block-content {
            flex: 1 1 45%;
            min-width: 280px;
        }
        .image-text-block .block-content h2 {
            font-size: 2rem;
            margin-bottom: 1rem;
        }
        .image-text-block .block-content p {
            margin-bottom: 0.8rem;
        }
        .image-text-block .block-content .feature-list li {
            padding: 0.4rem 0;
            display: flex;
            align-items: flex-start;
            gap: 0.6rem;
            font-size: 0.95rem;
            color: var(--text-secondary);
        }
        .image-text-block .block-content .feature-list li i {
            color: var(--accent);
            margin-top: 0.2rem;
            min-width: 1.2rem;
        }

        /* ===== Timeline ===== */
        .timeline {
            position: relative;
            padding-left: 2.5rem;
            margin: 2rem 0;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 0.6rem;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--accent);
            opacity: 0.4;
        }
        .timeline-item {
            position: relative;
            padding-bottom: 2.2rem;
            padding-left: 0.5rem;
        }
        .timeline-item:last-child {
            padding-bottom: 0;
        }
        .timeline-item::before {
            content: '';
            position: absolute;
            left: -2.15rem;
            top: 0.3rem;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--accent);
            border: 3px solid var(--bg);
            box-shadow: 0 0 0 2px var(--accent);
        }
        .timeline-item .year {
            font-family: var(--font-sans);
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--accent-dark);
            margin-bottom: 0.2rem;
        }
        .timeline-item .desc {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        .section-dark .timeline-item .desc {
            color: rgba(255,255,255,0.7);
        }
        .section-dark .timeline-item::before {
            border-color: var(--primary);
        }

        /* ===== Stats ===== */
        .stats-grid {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 2.5rem;
            text-align: center;
        }
        .stat-item {
            flex: 1 1 160px;
        }
        .stat-item .number {
            font-family: var(--font-sans);
            font-size: 3rem;
            font-weight: 900;
            color: var(--accent);
            line-height: 1.2;
        }
        .stat-item .label {
            font-size: 0.95rem;
            color: var(--text-secondary);
            font-family: var(--font-sans);
        }
        .section-dark .stat-item .label {
            color: rgba(255,255,255,0.7);
        }

        /* ===== Certification Badges ===== */
        .badge-grid {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1.8rem;
            padding: 1.5rem 0;
        }
        .badge-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            padding: 1.2rem 1.8rem;
            border: 1px solid var(--border-card);
            box-shadow: var(--shadow);
            display: flex;
            align-items: center;
            gap: 0.8rem;
            font-family: var(--font-sans);
            font-weight: 500;
            font-size: 0.9rem;
            color: var(--text);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .badge-item:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        .badge-item i {
            font-size: 1.6rem;
            color: var(--accent);
        }

        /* ===== FAQ Accordion ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 0.8rem;
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow);
        }
        .faq-question {
            padding: 1.2rem 1.5rem;
            font-family: var(--font-sans);
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: var(--bg-card);
            transition: background var(--transition);
            border: none;
            width: 100%;
            text-align: left;
        }
        .faq-question:hover {
            background: #faf9f6;
        }
        .faq-question:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: -2px;
        }
        .faq-question .icon {
            font-size: 1.2rem;
            color: var(--accent);
            transition: transform var(--transition);
            flex-shrink: 0;
            margin-left: 1rem;
        }
        .faq-item.active .faq-question .icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            padding: 0 1.5rem 1.2rem;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }
        .faq-item.active .faq-answer {
            display: block;
        }
        .faq-item.active .faq-question {
            background: #faf9f6;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 5rem 0;
            background: var(--primary);
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            color: var(--text-reverse);
            font-size: 2.4rem;
            margin-bottom: 0.8rem;
        }
        .cta-section p {
            color: rgba(255,255,255,0.75);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto 2rem;
        }
        .cta-section .btn {
            font-size: 1.1rem;
            padding: 0.9rem 3rem;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #111;
            color: rgba(255,255,255,0.7);
            padding: 3.5rem 0 0;
            font-family: var(--font-sans);
        }
        .footer-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 2.5rem;
            padding-bottom: 2rem;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .footer-brand {
            flex: 2 1 280px;
        }
        .footer-brand .logo {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--accent);
            margin-bottom: 0.8rem;
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.55);
            line-height: 1.7;
            max-width: 360px;
        }
        .footer-col {
            flex: 1 1 160px;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-reverse);
            margin-bottom: 1rem;
        }
        .footer-col ul li {
            margin-bottom: 0.5rem;
        }
        .footer-col ul li a {
            color: rgba(255,255,255,0.55);
            font-size: 0.9rem;
            transition: color var(--transition);
            text-decoration: none;
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }
        .footer-col .contact-item {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.55);
            margin-bottom: 0.6rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .footer-col .contact-item i {
            color: var(--accent);
            width: 1.2rem;
        }
        .footer-bottom {
            text-align: center;
            padding: 1.5rem 0;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.35);
        }
        .footer-bottom a {
            color: rgba(255,255,255,0.45);
            text-decoration: none;
            margin: 0 0.3rem;
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ===== Scroll Animation ===== */
        .fade-in {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }
        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== Responsive ===== */
        @media screen and (max-width: 1024px) {
            h1 {
                font-size: 2.8rem;
            }
            h2 {
                font-size: 2rem;
            }
            .hero h1 {
                font-size: 3rem;
            }
            .large-4 {
                width: 50%;
            }
        }
        @media screen and (max-width: 768px) {
            :root {
                --spacing: 3rem;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.7rem;
            }
            .hero {
                margin-top: 100px;
                min-height: 60vh;
                padding: 3rem 0;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .hero .subtitle {
                font-size: 1rem;
            }
            .header-brand .logo {
                font-size: 1.1rem;
            }
            .header-brand-links .nav-links a {
                font-size: 0.8rem;
                margin-left: 0.8rem;
            }
            .channel-nav a {
                font-size: 0.85rem;
                padding: 0.4rem 0.8rem;
            }
            .large-6,
            .large-4,
            .large-3,
            .medium-6 {
                width: 100%;
            }
            .image-text-block {
                flex-direction: column;
                gap: 1.5rem;
            }
            .image-text-block .block-image,
            .image-text-block .block-content {
                flex: 1 1 100%;
                min-width: 0;
            }
            .stats-grid {
                gap: 1.5rem;
            }
            .stat-item .number {
                font-size: 2.2rem;
            }
            .badge-grid {
                gap: 1rem;
            }
            .badge-item {
                padding: 0.8rem 1.2rem;
                font-size: 0.8rem;
            }
            .footer-grid {
                flex-direction: column;
                gap: 2rem;
            }
            .footer-brand p {
                max-width: 100%;
            }
            .section-title h2 {
                font-size: 1.8rem;
            }
            .cta-section h2 {
                font-size: 1.8rem;
            }
            .mobile-menu-toggle {
                display: block;
            }
            .header-brand-links .nav-links {
                display: none;
            }
            .header-brand-links .nav-links.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--primary);
                padding: 1rem 1.5rem;
                gap: 0.6rem;
                box-shadow: 0 8px 24px rgba(0,0,0,0.2);
            }
            .header-brand-links .nav-links.open a {
                margin-left: 0;
            }
            .channel-nav {
                flex-wrap: nowrap;
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                justify-content: flex-start;
                padding: 0.2rem 0;
            }
            .channel-nav a {
                white-space: nowrap;
                flex-shrink: 0;
            }
        }
        @media screen and (max-width: 520px) {
            .hero h1 {
                font-size: 1.8rem;
            }
            .hero .subtitle {
                font-size: 0.9rem;
            }
            .btn {
                padding: 0.6rem 1.5rem;
                font-size: 0.9rem;
            }
            .card {
                padding: 1.2rem 1rem;
            }
            .faq-question {
                font-size: 0.95rem;
                padding: 1rem 1.2rem;
            }
            .faq-answer {
                padding: 0 1.2rem 1rem;
                font-size: 0.9rem;
            }
        }

        /* ===== Focus / Accessibility ===== */
        :focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== Misc ===== */
        .divider {
            width: 60px;
            height: 3px;
            background: var(--accent);
            margin: 1rem auto 1.5rem;
            border-radius: 4px;
        }
        .divider-left {
            margin: 1rem 0 1.5rem;
        }
        .gap-1 {
            gap: 1rem;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .section-dark .divider {
            background: var(--accent-light);
        }

/* roulang page: category2 */
/* ===== CSS 设计变量 ===== */
        :root {
            --primary: #1a1a1a;
            --primary-light: #2a2a2a;
            --accent: #c9a84c;
            --accent-hover: #d4af37;
            --accent-dark: #b8962e;
            --bg: #f5f3ef;
            --bg-card: #ffffff;
            --text-main: #222222;
            --text-secondary: #6b6b6b;
            --text-light: #999999;
            --text-reverse: #ffffff;
            --border: #e0ded5;
            --border-card: #ececec;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --transition: 0.3s ease;
            --font-sans: 'Noto Sans SC', 'Helvetica Neue', sans-serif;
            --font-serif: 'Noto Serif SC', 'Georgia', serif;
            --max-width: 1200px;
            --header-top: 56px;
            --header-total: 104px;
        }

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

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

        body {
            font-family: var(--font-serif);
            color: var(--text-main);
            background: var(--bg);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            padding-top: var(--header-total);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 8px;
        }

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

        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 1rem;
        }

        /* ===== 标题字体 ===== */
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-sans);
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.3;
        }

        /* ===== 按钮全局样式 ===== */
        .btn {
            display: inline-block;
            font-family: var(--font-sans);
            font-weight: 600;
            font-size: 1rem;
            padding: 0.8rem 2.2rem;
            border-radius: var(--radius-sm);
            border: 2px solid var(--accent);
            background: transparent;
            color: var(--accent);
            cursor: pointer;
            transition: all var(--transition);
            text-align: center;
            line-height: 1.4;
        }
        .btn:hover {
            background: var(--accent-hover);
            color: #111;
            border-color: var(--accent-hover);
            transform: scale(1.02);
        }
        .btn:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .btn-primary {
            background: var(--accent);
            color: #111;
            border-color: var(--accent);
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            color: #000;
        }
        .btn-light {
            border-color: var(--text-reverse);
            color: var(--text-reverse);
        }
        .btn-light:hover {
            background: var(--text-reverse);
            color: var(--primary);
            border-color: var(--text-reverse);
        }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: var(--primary);
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
        }

        .header-brand {
            background: var(--primary);
            padding: 0.6rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .header-brand .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .header-brand .logo {
            font-family: var(--font-sans);
            font-size: 1.4rem;
            font-weight: 900;
            color: var(--accent);
            letter-spacing: 0.5px;
        }
        .header-brand .logo:hover {
            color: var(--accent-hover);
        }

        .header-brand-links {
            display: flex;
            align-items: center;
            gap: 1.5rem;
        }
        .header-brand-links .nav-links a {
            font-family: var(--font-sans);
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.75);
            margin-left: 1.2rem;
            transition: color var(--transition);
        }
        .header-brand-links .nav-links a:hover,
        .header-brand-links .nav-links a.active {
            color: var(--accent);
        }

        .mobile-menu-toggle {
            background: none;
            border: none;
            color: var(--text-reverse);
            font-size: 1.4rem;
            cursor: pointer;
            display: none;
            padding: 4px 8px;
        }

        .header-channel {
            background: var(--bg);
            border-bottom: 1px solid var(--border);
        }
        .channel-nav {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0;
            padding: 0;
        }
        .channel-nav a {
            font-family: var(--font-sans);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 0.75rem 1.6rem;
            position: relative;
            transition: color var(--transition);
            white-space: nowrap;
        }
        .channel-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%) scaleX(0);
            width: 70%;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
            transition: transform var(--transition);
        }
        .channel-nav a:hover {
            color: var(--text-main);
        }
        .channel-nav a:hover::after {
            transform: translateX(-50%) scaleX(1);
        }
        .channel-nav a.active {
            color: var(--text-main);
            font-weight: 600;
        }
        .channel-nav a.active::after {
            transform: translateX(-50%) scaleX(1);
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 5rem 0;
        }
        .section-title {
            font-family: var(--font-sans);
            font-size: 2.2rem;
            font-weight: 700;
            text-align: center;
            margin-bottom: 0.75rem;
            color: var(--text-main);
        }
        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            text-align: center;
            max-width: 720px;
            margin: 0 auto 3rem auto;
            font-family: var(--font-serif);
            font-weight: 300;
        }
        .section-title .highlight {
            color: var(--accent);
        }

        /* ===== Hero ===== */
        .hero {
            min-height: 70vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%);
            position: relative;
            overflow: hidden;
            padding: 4rem 0;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.25;
            z-index: 0;
        }
        .hero .container {
            position: relative;
            z-index: 1;
        }
        .hero h1 {
            font-family: var(--font-sans);
            font-size: 3.6rem;
            font-weight: 900;
            color: var(--text-reverse);
            margin-bottom: 1rem;
            letter-spacing: 1px;
        }
        .hero h1 .gold {
            color: var(--accent);
        }
        .hero .hero-desc {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 680px;
            margin: 0 auto 2rem auto;
            font-weight: 300;
            line-height: 1.8;
        }
        .hero .btn-group {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }

        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 3rem;
            margin-top: 3rem;
            flex-wrap: wrap;
        }
        .hero-stats .stat-item {
            text-align: center;
        }
        .hero-stats .stat-number {
            font-family: var(--font-sans);
            font-size: 2.4rem;
            font-weight: 900;
            color: var(--accent);
        }
        .hero-stats .stat-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            font-family: var(--font-sans);
        }

        /* ===== 流程区 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            margin-top: 1rem;
        }
        .step-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 2rem 1.5rem;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-card);
            transition: all var(--transition);
            position: relative;
        }
        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .step-card .step-number {
            font-family: var(--font-sans);
            font-size: 2.8rem;
            font-weight: 900;
            color: var(--accent);
            opacity: 0.3;
            position: absolute;
            top: 0.5rem;
            right: 1rem;
            line-height: 1;
        }
        .step-card .step-icon {
            font-size: 2.2rem;
            color: var(--accent);
            margin-bottom: 1rem;
        }
        .step-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            font-family: var(--font-sans);
        }
        .step-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            font-family: var(--font-serif);
            line-height: 1.6;
        }

        /* ===== 场景区 ===== */
        .scenes-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }
        .scene-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-card);
            transition: all var(--transition);
        }
        .scene-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .scene-card .scene-img {
            height: 200px;
            overflow: hidden;
        }
        .scene-card .scene-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
            border-radius: 0;
        }
        .scene-card:hover .scene-img img {
            transform: scale(1.05);
        }
        .scene-card .scene-body {
            padding: 1.5rem;
        }
        .scene-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.4rem;
            font-family: var(--font-sans);
        }
        .scene-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            font-family: var(--font-serif);
            line-height: 1.7;
        }

        /* ===== 安全区 ===== */
        .security-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }
        .security-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 2rem 1.5rem;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-card);
            transition: all var(--transition);
        }
        .security-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .security-card .sec-icon {
            font-size: 2.6rem;
            color: var(--accent);
            margin-bottom: 1.2rem;
        }
        .security-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            font-family: var(--font-sans);
        }
        .security-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            font-family: var(--font-serif);
            line-height: 1.7;
        }

        /* ===== FAQ 手风琴 ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 0.75rem;
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            font-family: var(--font-sans);
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-main);
            padding: 1.2rem 1.5rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: var(--bg-card);
            transition: background var(--transition);
            border: none;
            width: 100%;
            text-align: left;
            line-height: 1.4;
        }
        .faq-question:hover {
            background: #fafaf8;
        }
        .faq-question .faq-toggle {
            font-size: 1.2rem;
            color: var(--accent);
            transition: transform var(--transition);
            flex-shrink: 0;
            margin-left: 1rem;
        }
        .faq-item.is-active .faq-toggle {
            transform: rotate(45deg);
        }
        .faq-answer {
            padding: 0 1.5rem 1.2rem 1.5rem;
            font-size: 0.98rem;
            color: var(--text-secondary);
            font-family: var(--font-serif);
            line-height: 1.8;
            display: none;
        }
        .faq-item.is-active .faq-answer {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary);
            padding: 5rem 0;
            text-align: center;
        }
        .cta-section h2 {
            font-family: var(--font-sans);
            font-size: 2.4rem;
            font-weight: 700;
            color: var(--text-reverse);
            margin-bottom: 0.8rem;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.7);
            max-width: 600px;
            margin: 0 auto 2rem auto;
            font-family: var(--font-serif);
            font-weight: 300;
        }
        .cta-section .btn {
            font-size: 1.1rem;
            padding: 1rem 2.8rem;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #111;
            color: rgba(255, 255, 255, 0.7);
            padding: 3.5rem 0 1.5rem 0;
            font-family: var(--font-sans);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.5fr;
            gap: 2.5rem;
            margin-bottom: 2rem;
        }
        .footer-brand .logo {
            font-size: 1.3rem;
            font-weight: 900;
            color: var(--accent);
            margin-bottom: 0.8rem;
            display: inline-block;
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.55);
            max-width: 360px;
            font-family: var(--font-serif);
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-reverse);
            margin-bottom: 1rem;
            font-family: var(--font-sans);
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 0.5rem;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.9rem;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
        }
        .footer-col .contact-item {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            margin-bottom: 0.6rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .footer-col .contact-item i {
            color: var(--accent);
            width: 1.2rem;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ===== 滚动淡入动画 ===== */
        .fade-in {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }
        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* ===== 响应式 ===== */
        @media screen and (max-width: 1024px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scenes-grid,
            .security-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .hero h1 {
                font-size: 2.8rem;
            }
        }

        @media screen and (max-width: 768px) {
            body {
                padding-top: 96px;
            }
            .header-brand .logo {
                font-size: 1.1rem;
            }
            .header-brand-links .nav-links {
                display: none;
            }
            .mobile-menu-toggle {
                display: inline-block;
            }
            .channel-nav {
                flex-wrap: wrap;
                justify-content: flex-start;
                overflow-x: auto;
                padding: 0.3rem 0;
            }
            .channel-nav a {
                font-size: 0.85rem;
                padding: 0.5rem 1rem;
            }

            .section {
                padding: 3rem 0;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .hero {
                min-height: 60vh;
                padding: 3rem 0;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .hero .hero-desc {
                font-size: 1rem;
            }
            .hero-stats {
                gap: 1.5rem;
            }
            .hero-stats .stat-number {
                font-size: 1.8rem;
            }

            .steps-grid {
                grid-template-columns: 1fr 1fr;
                gap: 1rem;
            }
            .scenes-grid,
            .security-grid {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.8rem;
            }
            .cta-section h2 {
                font-size: 1.8rem;
            }
            .faq-question {
                font-size: 0.95rem;
                padding: 1rem 1.2rem;
            }
            .faq-answer {
                padding: 0 1.2rem 1rem 1.2rem;
                font-size: 0.92rem;
            }
        }

        @media screen and (max-width: 520px) {
            .hero h1 {
                font-size: 1.8rem;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .hero-stats {
                flex-direction: column;
                gap: 1rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .channel-nav a {
                font-size: 0.8rem;
                padding: 0.4rem 0.7rem;
            }
        }

        /* ===== 辅助 ===== */
        .text-gold {
            color: var(--accent);
        }
        .bg-light {
            background: var(--bg);
        }
        .bg-white {
            background: var(--bg-card);
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .mb-2 {
            margin-bottom: 2rem;
        }
        .text-center {
            text-align: center;
        }

        /* Foundation 覆盖 */
        .grid-container {
            max-width: var(--max-width);
            padding-left: 1rem;
            padding-right: 1rem;
        }
        .cell {
            margin-bottom: 0;
        }
        .grid-x>.cell {
            padding: 0;
        }
        .grid-margin-x {
            margin-left: -0.75rem;
            margin-right: -0.75rem;
        }
        .grid-margin-x>.cell {
            padding-left: 0.75rem;
            padding-right: 0.75rem;
        }

        /* 移动端导航折叠 */
        .channel-nav.is-open {
            display: flex;
        }
        @media screen and (max-width: 768px) {
            .channel-nav {
                display: none;
                flex-direction: column;
                align-items: stretch;
                background: var(--bg);
                padding: 0.5rem 0;
            }
            .channel-nav a {
                padding: 0.7rem 1.2rem;
                border-bottom: 1px solid var(--border);
            }
            .channel-nav a:last-child {
                border-bottom: none;
            }
            .channel-nav.is-open {
                display: flex;
            }
            .header-channel .container {
                padding: 0;
            }
        }

/* roulang page: category3 */
/* ===== CSS Variables ===== */
        :root {
            --primary: #1a1a1a;
            --accent: #c9a84c;
            --accent-hover: #d4af37;
            --accent-dark: #b8942f;
            --bg: #f5f3ef;
            --white: #ffffff;
            --text: #222222;
            --text-light: #6b6b6b;
            --text-lighter: #999;
            --border: #e0ded5;
            --card-shadow: 0 4px 20px rgba(0,0,0,0.06);
            --card-hover-shadow: 0 8px 30px rgba(0,0,0,0.10);
            --radius: 12px;
            --radius-btn: 6px;
            --radius-img: 8px;
            --transition: 0.3s ease;
            --font-title: 'Noto Sans SC', 'Helvetica Neue', sans-serif;
            --font-body: 'Noto Serif SC', 'Georgia', serif;
            --max-width: 1200px;
            --header-brand-bg: #1a1a1a;
            --header-channel-bg: #f5f3ef;
        }

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

        /* ===== Typography ===== */
        h1, h2, h3, h4, h5, h6 { font-family: var(--font-title); font-weight: 700; color: var(--text); line-height: 1.3; }
        h1 { font-size: 3.2rem; }
        h2 { font-size: 2.2rem; margin-bottom: 1.5rem; }
        h3 { font-size: 1.6rem; }
        h4 { font-size: 1.2rem; }
        .section-title { text-align: center; margin-bottom: 3rem; }
        .section-title h2 { margin-bottom: 0.5rem; }
        .section-title p { color: var(--text-light); font-size: 1.1rem; max-width: 700px; margin: 0 auto; font-family: var(--font-title); font-weight: 300; }

        /* ===== Header & Navigation ===== */
        .site-header { position: fixed; top: 0; left: 0; width: 100%; z-index: 100; box-shadow: 0 2px 12px rgba(0,0,0,0.08); }
        .header-brand { background: var(--header-brand-bg); padding: 0.6rem 0; }
        .header-brand .container { display: flex; align-items: center; justify-content: space-between; }
        .header-brand .logo {
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 1.4rem;
            color: var(--accent);
            text-decoration: none;
            letter-spacing: 0.5px;
        }
        .header-brand .logo:hover { color: var(--accent-hover); }
        .header-brand-links { display: flex; align-items: center; gap: 1.5rem; }
        .header-brand-links .nav-links a {
            color: rgba(255,255,255,0.8);
            font-family: var(--font-title);
            font-size: 0.9rem;
            transition: color var(--transition);
        }
        .header-brand-links .nav-links a:hover { color: var(--accent-hover); }
        .mobile-menu-toggle { display: none; background: none; border: none; color: var(--white); font-size: 1.4rem; cursor: pointer; padding: 0.3rem 0.6rem; }
        .header-channel { background: var(--header-channel-bg); border-bottom: 1px solid var(--border); }
        .channel-nav { display: flex; justify-content: center; gap: 0; flex-wrap: wrap; }
        .channel-nav a {
            display: inline-block;
            padding: 0.7rem 1.8rem;
            font-family: var(--font-title);
            font-weight: 400;
            font-size: 0.95rem;
            color: var(--text);
            position: relative;
            transition: color var(--transition);
            white-space: nowrap;
        }
        .channel-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%) scaleX(0);
            width: 70%;
            height: 3px;
            background: var(--accent);
            transition: transform var(--transition);
            border-radius: 2px;
        }
        .channel-nav a:hover::after { transform: translateX(-50%) scaleX(1); }
        .channel-nav a.active { color: var(--accent-dark); font-weight: 700; }
        .channel-nav a.active::after { transform: translateX(-50%) scaleX(1); background: var(--accent); }

        /* ===== Hero ===== */
        .hero-faq {
            position: relative;
            min-height: 75vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 8rem 1rem 5rem;
            background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%);
            overflow: hidden;
        }
        .hero-faq::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.25;
            pointer-events: none;
        }
        .hero-faq .hero-content { position: relative; z-index: 2; max-width: 820px; }
        .hero-faq h1 {
            color: var(--white);
            font-size: 3.6rem;
            font-weight: 700;
            margin-bottom: 1rem;
            text-shadow: 0 2px 8px rgba(0,0,0,0.3);
        }
        .hero-faq .hero-sub {
            color: rgba(255,255,255,0.85);
            font-size: 1.3rem;
            font-weight: 300;
            font-family: var(--font-title);
            margin-bottom: 2.5rem;
        }
        .hero-faq .hero-search {
            max-width: 560px;
            margin: 0 auto;
            display: flex;
            background: var(--white);
            border-radius: 50px;
            overflow: hidden;
            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
        }
        .hero-faq .hero-search input {
            flex: 1;
            border: none;
            padding: 0.9rem 1.5rem;
            font-size: 1rem;
            font-family: var(--font-title);
            outline: none;
            background: transparent;
            color: var(--text);
        }
        .hero-faq .hero-search input::placeholder { color: var(--text-lighter); }
        .hero-faq .hero-search button {
            background: var(--accent);
            border: none;
            color: var(--primary);
            padding: 0 1.8rem;
            font-size: 1.1rem;
            cursor: pointer;
            transition: background var(--transition);
        }
        .hero-faq .hero-search button:hover { background: var(--accent-hover); }

        /* ===== Section Spacing ===== */
        .section-pad { padding: 5rem 0; }

        /* ===== Category Cards (问题分类) ===== */
        .category-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
        .category-card {
            background: var(--white);
            border-radius: var(--radius);
            padding: 2.5rem 2rem;
            text-align: center;
            box-shadow: var(--card-shadow);
            border: 1px solid #ececec;
            transition: transform var(--transition), box-shadow var(--transition);
            cursor: pointer;
        }
        .category-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--card-hover-shadow);
        }
        .category-card .icon { font-size: 2.8rem; color: var(--accent); margin-bottom: 1.2rem; }
        .category-card h3 { font-size: 1.3rem; margin-bottom: 0.6rem; }
        .category-card p { color: var(--text-light); font-size: 0.95rem; font-family: var(--font-title); }

        /* ===== FAQ Accordion ===== */
        .faq-list { max-width: 860px; margin: 0 auto; }
        .faq-item {
            background: var(--white);
            border-radius: var(--radius);
            margin-bottom: 1rem;
            border: 1px solid #ececec;
            box-shadow: var(--card-shadow);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-item:hover { box-shadow: var(--card-hover-shadow); }
        .faq-question {
            padding: 1.4rem 2rem;
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 1.05rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            background: var(--white);
            transition: background var(--transition);
            user-select: none;
        }
        .faq-question:hover { background: #fafaf8; }
        .faq-question .toggle-icon {
            font-size: 1.2rem;
            color: var(--accent);
            transition: transform var(--transition);
            flex-shrink: 0;
            margin-left: 1rem;
        }
        .faq-item.active .faq-question .toggle-icon { transform: rotate(45deg); }
        .faq-answer {
            padding: 0 2rem 1.4rem;
            color: var(--text-light);
            font-size: 0.98rem;
            line-height: 1.8;
            display: none;
        }
        .faq-item.active .faq-answer { display: block; }

        /* ===== Solutions / 优势区 ===== */
        .solutions-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem; align-items: center; }
        .solutions-image img { border-radius: var(--radius); width: 100%; height: auto; box-shadow: var(--card-shadow); }
        .solutions-text h3 { font-size: 1.8rem; margin-bottom: 1rem; }
        .solutions-text p { color: var(--text-light); margin-bottom: 1.8rem; font-size: 1rem; }
        .solutions-features { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
        .solutions-feature {
            display: flex;
            align-items: flex-start;
            gap: 0.8rem;
            font-family: var(--font-title);
            font-size: 0.95rem;
        }
        .solutions-feature i { color: var(--accent); font-size: 1.2rem; margin-top: 0.2rem; flex-shrink: 0; }

        /* ===== Testimonials ===== */
        .testimonials-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
        .testimonial-card {
            background: var(--white);
            border-radius: var(--radius);
            padding: 2rem 1.8rem;
            border-left: 4px solid var(--accent);
            box-shadow: var(--card-shadow);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .testimonial-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--card-hover-shadow);
        }
        .testimonial-card .quote { font-style: italic; color: var(--text-light); font-size: 0.98rem; margin-bottom: 1.5rem; line-height: 1.8; }
        .testimonial-card .author { display: flex; align-items: center; gap: 1rem; }
        .testimonial-card .author-avatar {
            width: 48px; height: 48px; border-radius: 50%;
            background: var(--bg); display: flex; align-items: center; justify-content: center;
            font-size: 1.4rem; color: var(--accent); flex-shrink: 0;
            background-size: cover; background-position: center;
        }
        .testimonial-card .author-info strong { display: block; font-family: var(--font-title); font-size: 0.95rem; }
        .testimonial-card .author-info span { color: var(--text-lighter); font-size: 0.85rem; }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary);
            color: var(--white);
            text-align: center;
            padding: 5rem 1rem;
        }
        .cta-section h2 { color: var(--white); margin-bottom: 0.5rem; }
        .cta-section .cta-sub { color: var(--accent); font-size: 1.1rem; font-family: var(--font-title); font-weight: 300; margin-bottom: 2.5rem; }
        .cta-section .btn-cta {
            display: inline-block;
            padding: 0.9rem 3rem;
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--white);
            background: transparent;
            border: 2px solid var(--accent);
            border-radius: var(--radius-btn);
            transition: all var(--transition);
            cursor: pointer;
            text-decoration: none;
        }
        .cta-section .btn-cta:hover {
            background: var(--accent-hover);
            color: var(--primary);
            transform: scale(1.02);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary);
            color: rgba(255,255,255,0.8);
            padding: 4rem 0 0;
        }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1.5fr; gap: 3rem; margin-bottom: 2.5rem; }
        .footer-brand .logo { font-family: var(--font-title); font-weight: 700; font-size: 1.4rem; color: var(--accent); margin-bottom: 1rem; }
        .footer-brand p { font-size: 0.9rem; line-height: 1.7; color: rgba(255,255,255,0.6); max-width: 360px; }
        .footer-col h4 { color: var(--white); font-family: var(--font-title); font-size: 1.1rem; margin-bottom: 1.2rem; }
        .footer-col ul li { margin-bottom: 0.5rem; }
        .footer-col ul li a { color: rgba(255,255,255,0.6); font-size: 0.9rem; transition: color var(--transition); }
        .footer-col ul li a:hover { color: var(--accent-hover); }
        .footer-col .contact-item { color: rgba(255,255,255,0.6); font-size: 0.9rem; margin-bottom: 0.6rem; display: flex; align-items: center; gap: 0.6rem; }
        .footer-col .contact-item i { color: var(--accent); width: 1.2rem; text-align: center; }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding: 1.5rem 0;
            text-align: center;
            color: rgba(255,255,255,0.4);
            font-size: 0.85rem;
        }
        .footer-bottom a { color: rgba(255,255,255,0.5); }
        .footer-bottom a:hover { color: var(--accent-hover); }

        /* ===== Buttons ===== */
        .btn-primary {
            display: inline-block;
            padding: 0.8rem 2rem;
            font-family: var(--font-title);
            font-weight: 700;
            font-size: 1rem;
            color: var(--primary);
            background: transparent;
            border: 2px solid var(--accent);
            border-radius: var(--radius-btn);
            transition: all var(--transition);
            cursor: pointer;
            text-decoration: none;
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            color: var(--primary);
            transform: scale(1.02);
        }

        /* ===== Tags / Badges ===== */
        .badge {
            display: inline-block;
            background: var(--accent);
            color: var(--primary);
            font-family: var(--font-title);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.2rem 0.8rem;
            border-radius: 20px;
            letter-spacing: 0.3px;
        }

        /* ===== Scroll Animations ===== */
        .fade-up {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }
        .fade-up.visible { opacity: 1; transform: translateY(0); }

        /* ===== Responsive ===== */
        @media screen and (max-width: 1024px) {
            .category-grid { gap: 1.5rem; }
            .solutions-grid { gap: 2rem; }
            .footer-grid { gap: 2rem; }
        }

        @media screen and (max-width: 768px) {
            h1 { font-size: 2.4rem; }
            h2 { font-size: 1.8rem; }
            .hero-faq h1 { font-size: 2.4rem; }
            .hero-faq .hero-sub { font-size: 1.05rem; }
            .hero-faq { min-height: 60vh; padding: 6rem 1rem 3rem; }
            .section-pad { padding: 3rem 0; }
            .category-grid { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; }
            .solutions-grid { grid-template-columns: 1fr; }
            .solutions-image { order: -1; }
            .testimonials-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
            .footer-grid { grid-template-columns: 1fr; text-align: center; }
            .footer-brand p { max-width: 100%; }
            .footer-col .contact-item { justify-content: center; }
            .header-brand-links .nav-links { display: none; }
            .mobile-menu-toggle { display: block; }
            .channel-nav { flex-direction: column; align-items: center; display: none; }
            .channel-nav.open { display: flex; }
            .channel-nav a { width: 100%; text-align: center; padding: 0.9rem 1rem; border-bottom: 1px solid var(--border); }
            .channel-nav a::after { display: none; }
            .channel-nav a.active { background: rgba(201,168,76,0.1); }
            .faq-question { padding: 1.2rem 1.2rem; font-size: 0.95rem; }
            .faq-answer { padding: 0 1.2rem 1.2rem; }
            .solutions-features { grid-template-columns: 1fr; }
        }

        @media screen and (max-width: 520px) {
            .hero-faq h1 { font-size: 1.8rem; }
            .hero-faq .hero-search { flex-direction: column; border-radius: var(--radius-btn); }
            .hero-faq .hero-search input { padding: 0.8rem 1rem; }
            .hero-faq .hero-search button { padding: 0.7rem; }
            .section-title h2 { font-size: 1.5rem; }
            .cta-section h2 { font-size: 1.5rem; }
            .cta-section .btn-cta { padding: 0.7rem 2rem; font-size: 1rem; }
        }

        /* Foundation override: remove default blue */
        .button, .button.primary { background: var(--accent); border-color: var(--accent); color: var(--primary); }
        .button:hover, .button.primary:hover { background: var(--accent-hover); }
        input:focus, textarea:focus { border-color: var(--accent) !important; box-shadow: 0 0 0 1px var(--accent) !important; }