/* roulang page: index */
:root {
  --color-primary: #1C2B33;
  --color-primary-dark: #122027;
  --color-secondary: #45C5B8;
  --color-accent: #F2A33C;
  --color-accent-deep: #E27C3A;
  --color-bg: #F6F5F1;
  --color-card: #FFFFFF;
  --color-text: #22333D;
  --color-text-2: #5B6E7B;
  --color-text-3: #8A9BA6;
  --color-border: #E3EDEC;
  --gradient-brand: linear-gradient(135deg, #1C2B33 0%, #2E4F5E 55%, #45C5B8 130%);
  --gradient-accent: linear-gradient(135deg, #F2A33C 0%, #E27C3A 100%);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --shadow-card: 0 12px 40px rgba(18, 32, 39, 0.08);
  --shadow-hover: 0 20px 60px rgba(18, 32, 39, 0.16);
  --font-main: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin:0; font-family: var(--font-main); background: var(--color-bg); color: var(--color-text); line-height:1.8; font-size:16px; -webkit-font-smoothing: antialiased; }
a { color: var(--color-secondary); text-decoration:none; }
a:hover { color: var(--color-accent-deep); }
img { max-width:100%; height:auto; display:block; }
h1,h2,h3,h4,h5,h6 { line-height:1.25; font-weight:700; margin-top:0; color: var(--color-text); }
h1 { font-size:48px; }
h2 { font-size:32px; }
h3 { font-size:20px; }
p { margin-top:0; }
.container, .main-container { max-width:1240px; margin:0 auto; padding-left:24px; padding-right:24px; }
.btn { border-radius: var(--radius-sm); padding:14px 32px; font-size:16px; font-weight:600; transition: all .2s ease; border:0; display:inline-flex; align-items:center; justify-content:center; text-align:center; line-height:1.2; }
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); color:#fff; }
.btn-accent { background: var(--gradient-accent); color:#fff; }
.btn-outline-light { background:transparent; color:#fff; border:1.5px solid rgba(255,255,255,.6); }
.btn-outline-light:hover { background:#fff; color: var(--color-primary-dark); }
.btn-outline-dark { background:transparent; color: var(--color-primary); border:1.5px solid var(--color-primary); }
.btn-outline-dark:hover { background: var(--color-primary); color:#fff; }
.card { border:1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-card); box-shadow: 0 4px 20px rgba(18,32,39,.04); transition: all .3s ease; }
.form-control { border-radius: var(--radius-sm); border:1px solid var(--color-border); padding:12px 16px; font-size:15px; background:#fff; }
.form-control:focus { border-color: var(--color-secondary); box-shadow: 0 0 0 4px rgba(69,197,184,.15); }

/* 左侧竖向导航 */
.sidebar-nav { position:fixed; left:0; top:0; width:260px; height:100vh; background: var(--color-primary-dark); display:flex; flex-direction:column; z-index:1040; padding:32px 20px; }
.sidebar-brand { padding-bottom:28px; border-bottom:1px solid rgba(255,255,255,.08); margin-bottom:20px; }
.brand-inner { display:flex; align-items:center; gap:10px; }
.brand-logo { width:40px; height:40px; border-radius:12px; background: var(--gradient-accent); color:#fff; font-weight:800; display:flex; align-items:center; justify-content:center; font-size:20px; flex-shrink:0; }
.brand-text { color:#fff; font-size:20px; font-weight:700; letter-spacing:1px; }
.sidebar-menu { display:flex; flex-direction:column; gap:4px; flex:1; }
.menu-item { display:flex; align-items:center; gap:12px; height:50px; padding:0 14px; border-radius:var(--radius-sm); color:rgba(255,255,255,.75); font-size:16px; position:relative; transition: all .2s ease; }
.menu-item svg { width:20px; height:20px; flex-shrink:0; opacity:.75; }
.menu-item:hover { background: rgba(69,197,184,.15); color:#fff; }
.menu-item.active { background: rgba(69,197,184,.22); color:#fff; }
.menu-item.active::before { content:""; position:absolute; left:-20px; top:10px; width:4px; height:30px; border-radius:4px; background: var(--color-secondary); }
.sidebar-foot { margin-top:24px; padding-top:20px; border-top:1px solid rgba(255,255,255,.08); font-size:13px; color: var(--color-text-3); display:flex; flex-direction:column; gap:6px; }
.sidebar-foot a { color: var(--color-text-3); }
.sidebar-foot a:hover { color: var(--color-secondary); }

/* 移动端顶栏 */
.mobile-header { display:none; position:fixed; top:0; left:0; right:0; height:58px; z-index:1050; padding:0 16px; background: var(--color-primary-dark); align-items:center; justify-content:space-between; }
.mobile-brand { color:#fff; font-size:18px; font-weight:700; display:flex; align-items:center; gap:8px; }
.navbar-toggler { background:transparent; border:1px solid rgba(255,255,255,.5); border-radius:8px; padding:6px 10px; }
.navbar-toggler .toggler-bar { display:block; width:20px; height:2px; background:#fff; margin:4px 0; border-radius:2px; }
.mobile-menu-panel { background: var(--color-primary-dark) !important; color:#fff; width:280px !important; border-left:0 !important; }
.mobile-menu-panel .offcanvas-title { color:#fff; }
.mobile-menu-panel .btn-close { filter:invert(1); opacity:.8; }
.mobile-menu-panel a { display:flex; align-items:center; gap:12px; color:rgba(255,255,255,.8); padding:12px 14px; border-radius:10px; margin-bottom:4px; font-size:16px; }
.mobile-menu-panel a:hover, .mobile-menu-panel a.active { background: rgba(69,197,184,.22); color:#fff; }

/* 主内容区 */
.site-main { margin-left:260px; min-height:100vh; }
.block { padding:96px 0; }
.section-head { margin-bottom:48px; max-width:760px; }
.section-tag { display:inline-block; background: rgba(69,197,184,.12); color: var(--color-secondary); font-size:13px; font-weight:600; padding:5px 14px; border-radius:999px; margin-bottom:12px; letter-spacing:1px; }

/* Hero */
.hero-section { background: var(--gradient-brand); color:#fff; padding:100px 0; position:relative; overflow:hidden; }
.hero-section::before { content:""; position:absolute; inset:0; background-image: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px); background-size:36px 36px; pointer-events:none; }
.hero-section .main-container { position:relative; z-index:1; }
.hero-eyebrow { display:inline-block; background: rgba(255,255,255,.12); border:1px solid rgba(255,255,255,.2); padding:6px 14px; border-radius:999px; font-size:13px; letter-spacing:1px; color:rgba(255,255,255,.85); margin-bottom:22px; }
.hero-section h1 { color:#fff; margin-bottom:20px; }
.hero-sub { font-size:18px; color:rgba(255,255,255,.75); max-width:560px; line-height:1.7; }
.hero-actions { margin:32px 0 24px; display:flex; gap:16px; flex-wrap:wrap; }
.hero-meta { display:flex; gap:28px; margin-top:10px; font-size:14px; color:rgba(255,255,255,.6); }
.hero-meta span { display:inline-flex; align-items:center; gap:6px; }
.hero-meta span::before { content:""; width:6px; height:6px; border-radius:50%; background: var(--color-secondary); }
.hero-visual { border-radius: var(--radius-lg); overflow:hidden; box-shadow: 0 30px 80px rgba(0,0,0,.35); border:1px solid rgba(255,255,255,.12); }
.hero-visual img { width:100%; height:380px; object-fit:cover; }

/* 痛点 */
.pain-card { padding:28px; height:100%; }
.pain-card:hover { border-color: var(--color-secondary); box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.pain-icon { width:40px; height:40px; border-radius:50%; background: rgba(69,197,184,.12); color: var(--color-secondary); display:flex; align-items:center; justify-content:center; margin-bottom:18px; transition: all .3s ease; }
.pain-icon svg { width:20px; height:20px; }
.pain-card:hover .pain-icon { background: var(--color-secondary); color:#fff; }
.pain-card h3 { margin-bottom:10px; }
.pain-card p { color: var(--color-text-2); font-size:15px; line-height:1.7; margin-bottom:0; }

/* 解决方案 */
.solution-section { background:#fff; }
.solution-visual { position:relative; border-radius: var(--radius-lg); overflow:hidden; box-shadow: var(--shadow-card); }
.solution-visual img { width:100%; height:420px; object-fit:cover; }
.data-badge { position:absolute; right:20px; bottom:20px; background: rgba(18,32,39,.78); border:1px solid rgba(255,255,255,.15); border-radius:var(--radius-md); padding:16px 24px; color:#fff; }
.data-badge strong { display:block; font-size:36px; background: var(--gradient-accent); -webkit-background-clip:text; background-clip:text; color:transparent; line-height:1.2; font-variant-numeric:tabular-nums; }
.data-badge span { font-size:13px; color: var(--color-secondary); }

/* 数据区 */
.stats-section { padding-top:0; }
.stats-panel { background: var(--color-primary-dark); border-radius: var(--radius-lg); padding:48px 40px; display:flex; flex-wrap:wrap; gap:32px; justify-content:center; background-image:url('/assets/images/backpic/back-2.webp'); background-size:cover; background-position:center; position:relative; }
.stats-panel::before { content:""; position:absolute; inset:0; background: rgba(18,32,39,.82); border-radius:inherit; }
.stat-item { position:relative; text-align:center; min-width:150px; padding:8px 16px; }
.stat-item strong { display:block; font-size:48px; line-height:1.1; font-weight:800; background: var(--gradient-accent); -webkit-background-clip:text; background-clip:text; color:transparent; font-variant-numeric:tabular-nums; }
.stat-item span { display:block; margin-top:6px; font-size:14px; color: var(--color-secondary); }

/* 证言 */
.testimonial-section { background: var(--color-bg); }
.testimonial-card { padding:32px; height:100%; }
.testimonial-card:hover { box-shadow: var(--shadow-card); transform:none; }
.testimonial-main { background:#fff; }
.quote-mark { width:64px; color: var(--color-accent); margin-bottom:12px; }
.testimonial-card p { color: var(--color-text-2); font-size:15px; line-height:1.8; }
.testimonial-author { display:flex; align-items:center; gap:12px; margin-top:18px; }
.avatar { width:44px; height:44px; border-radius:50%; background: rgba(69,197,184,.2); color: var(--color-primary); display:flex; align-items:center; justify-content:center; font-weight:700; font-size:16px; flex-shrink:0; }
.testimonial-author strong { display:block; color: var(--color-text); font-size:15px; }
.testimonial-author span { font-size:13px; color: var(--color-text-3); }

/* CTA */
.cta-section { padding-top:0; }
.cta-panel { position:relative; border-radius: var(--radius-lg); overflow:hidden; padding:72px 56px; text-align:center; background: var(--color-primary-dark); color:#fff; }
.cta-panel::before { content:""; position:absolute; inset:0; background:url('/assets/images/backpic/back-3.webp') center/cover no-repeat; opacity:.2; }
.cta-panel > * { position:relative; z-index:1; }
.cta-panel h2 { color:#fff; margin-bottom:12px; }
.cta-panel p { color: rgba(255,255,255,.75); margin-bottom:28px; }
.cta-form { max-width:720px; margin:0 auto; text-align:left; }
.cta-form .form-control { background: rgba(255,255,255,.1); border:1px solid rgba(255,255,255,.25); color:#fff; border-radius:var(--radius-sm); padding:12px 16px; }
.cta-form .form-control::placeholder { color: rgba(255,255,255,.5); }
.cta-form .form-control:focus { background: rgba(255,255,255,.14); border-color: var(--color-secondary); box-shadow: 0 0 0 4px rgba(69,197,184,.15); color:#fff; }
.cta-form textarea.form-control { resize:none; }
.form-tip { font-size:13px; color: rgba(255,255,255,.55); margin-top:12px; text-align:center; }

/* 资讯列表 */
.news-section { background: var(--color-bg); }
.news-list { display:flex; flex-direction:column; gap:24px; }
.news-item { display:flex; padding:20px; gap:24px; align-items:center; }
.news-item:hover { border-color: var(--color-secondary); box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.news-thumb { width:120px; height:80px; flex-shrink:0; overflow:hidden; border-radius:var(--radius-sm); background: var(--color-border); }
.news-thumb img { width:100%; height:100%; object-fit:cover; }
.news-body { flex:1; min-width:0; }
.news-body h3 { margin-bottom:8px; font-size:18px; line-height:1.4; }
.news-body h3 a { color: var(--color-text); }
.news-body h3 a:hover { color: var(--color-secondary); }
.news-body p { color: var(--color-text-2); font-size:15px; margin-bottom:10px; line-height:1.7; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
.news-meta { display:flex; align-items:center; gap:16px; flex-wrap:wrap; }
.news-cat { background: rgba(69,197,184,.12); color: var(--color-secondary); font-size:13px; padding:4px 12px; border-radius:999px; }
.news-date { color: var(--color-text-3); font-size:14px; }
.news-link { font-size:14px; font-weight:600; }
.news-empty { border:1px dashed var(--color-border); border-radius: var(--radius-md); padding:48px; text-align:center; color: var(--color-text-3); }

/* 页脚 */
.site-footer { background: var(--color-primary-dark); color:#fff; margin-left:260px; padding:64px 0 28px; }
.footer-grid { display:grid; grid-template-columns:1.6fr 1fr 1.2fr; gap:48px; margin-bottom:40px; }
.footer-brand .brand-text { display:block; margin-bottom:14px; }
.footer-brand p { color: rgba(255,255,255,.65); font-size:14px; }
.footer-links h4, .footer-contact h4 { color:#fff; font-size:16px; margin-bottom:16px; }
.footer-links a { display:block; color: rgba(255,255,255,.6); padding:6px 0; font-size:14px; }
.footer-links a:hover { color: var(--color-secondary); }
.footer-contact a, .footer-contact address { display:block; color: rgba(255,255,255,.6); font-size:14px; padding:4px 0; font-style:normal; }
.footer-bottom { border-top:1px solid rgba(255,255,255,.1); padding-top:24px; display:flex; justify-content:space-between; color: rgba(255,255,255,.45); font-size:13px; flex-wrap:wrap; gap:8px; }

@media (max-width: 991.98px) {
  .sidebar-nav { display:none; }
  .mobile-header { display:flex; }
  .site-main { margin-left:0; padding-top:58px; }
  .site-footer { margin-left:0; }
  .footer-grid { grid-template-columns:1fr; gap:36px; }
}
@media (max-width: 767.98px) {
  .block { padding:64px 0; }
  .hero-section { padding:64px 0; }
  .hero-section h1 { font-size:34px; }
  .hero-sub { font-size:16px; }
  .hero-visual img { height:260px; }
  .cta-panel { padding:48px 24px; }
  .news-item { flex-direction:column; align-items:flex-start; }
  .news-thumb { width:100%; height:160px; }
  .stats-panel { padding:40px 20px; gap:24px; }
  .stat-item { min-width:120px; }
  .stat-item strong { font-size:38px; }
}
@media (max-width: 520px) {
  .hero-meta { flex-direction:column; gap:8px; }
  .hero-actions .btn { width:100%; }
  .cta-form .btn { width:100%; }
}

/* roulang page: article */
:root {
            --primary: #1C2B33;
            --primary-dark: #122027;
            --accent: #45C5B8;
            --amber: #F2A33C;
            --amber-dark: #E27C3A;
            --bg: #F6F5F1;
            --card-bg: #FFFFFF;
            --text: #22333D;
            --text-secondary: #5B6E7B;
            --text-muted: #8A9BA6;
            --border: #E3EDEC;
            --radius-lg: 24px;
            --radius-md: 16px;
            --radius-sm: 12px;
            --shadow-card: 0 12px 40px rgba(18, 32, 39, 0.08);
            --shadow-hover: 0 20px 60px rgba(18, 32, 39, 0.16);
            --font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
            --gradient-brand: linear-gradient(135deg, #1C2B33 0%, #2E4F5E 55%, #45C5B8 130%);
            --gradient-amber: linear-gradient(135deg, #F2A33C 0%, #E27C3A 100%);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background: var(--bg);
            color: var(--text);
            font-size: 16px;
            line-height: 1.8;
            overflow-x: hidden;
        }

        a {
            color: var(--accent);
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

        img {
            max-width: 100%;
            height: auto;
        }

        .main-container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== 左侧导航 ===== */
        .sidebar {
            position: fixed;
            left: 0;
            top: 0;
            width: 260px;
            height: 100vh;
            background: var(--primary-dark);
            z-index: 1040;
            display: flex;
            flex-direction: column;
            padding: 0;
            transition: transform 0.3s ease;
        }

        .sidebar-brand {
            padding: 36px 28px 28px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--accent);
            border-radius: 10px;
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            flex-shrink: 0;
        }

        .brand-text {
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            letter-spacing: 1px;
            line-height: 1.2;
        }

        .sidebar-menu {
            flex: 1;
            padding: 24px 0;
            display: flex;
            flex-direction: column;
        }

        .menu-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 13px 28px;
            color: rgba(255, 255, 255, 0.75);
            font-size: 15px;
            line-height: 1.4;
            border-left: 4px solid transparent;
            transition: all 0.2s ease;
        }

        .menu-item svg {
            width: 18px;
            height: 18px;
            flex-shrink: 0;
        }

        .menu-item:hover {
            background: rgba(69, 197, 184, 0.15);
            color: #fff;
        }

        .menu-item.active {
            background: rgba(69, 197, 184, 0.22);
            color: #fff;
            border-left-color: var(--accent);
            font-weight: 600;
        }

        .sidebar-contact {
            padding: 24px 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .sidebar-contact a {
            display: block;
            color: var(--text-muted);
            margin: 4px 0;
            font-size: 13px;
        }

        .sidebar-contact a:hover {
            color: var(--accent);
        }

        .sidebar-contact address {
            font-style: normal;
            color: var(--text-muted);
            margin: 8px 0 0;
            font-size: 13px;
        }

        .content-wrapper {
            margin-left: 260px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ===== 移动端导航 ===== */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 58px;
            background: var(--primary-dark);
            z-index: 1050;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .mobile-topbar .brand-inner {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .mobile-topbar .brand-text {
            font-size: 18px;
        }

        .mobile-menu-toggle {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.6);
            border-radius: 8px;
            padding: 6px 10px;
            color: #fff;
            font-size: 20px;
            line-height: 1;
        }

        .mobile-menu-toggle:focus {
            box-shadow: 0 0 0 4px rgba(69, 197, 184, 0.25);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 58px;
            left: 0;
            right: 0;
            background: var(--primary-dark);
            z-index: 1045;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
        }

        .mobile-menu.show {
            display: block;
        }

        .mobile-menu .menu-item {
            padding: 14px 24px;
        }

        /* ===== 文章页内容 ===== */
        .article-page {
            flex: 1;
            padding-top: 32px;
            padding-bottom: 80px;
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 32px;
            flex-wrap: wrap;
        }

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

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

        .breadcrumb-nav .separator {
            color: var(--text-muted);
            opacity: 0.5;
        }

        .article-header {
            max-width: 900px;
            margin: 0 auto 28px;
            text-align: left;
        }

        .article-header h1 {
            font-size: 36px;
            line-height: 1.3;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 20px;
            letter-spacing: -0.01em;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 14px;
            color: var(--text-secondary);
            align-items: center;
            margin-bottom: 24px;
        }

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

        .article-meta .meta-item svg {
            width: 15px;
            height: 15px;
            stroke: var(--accent);
        }

        .article-meta .meta-cdiv {
            color: var(--text-muted);
        }

        .article-meta .badge-category {
            background: rgba(69, 197, 184, 0.12);
            color: var(--accent);
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
        }

        .article-divider {
            border: none;
            height: 1px;
            background: var(--border);
            margin: 0;
        }

        .article-body {
            max-width: 780px;
            margin: 0 auto;
            padding-top: 16px;
        }

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

        .article-body .cms-article-content p {
            margin-bottom: 1.8em;
        }

        .article-body .cms-article-content h2 {
            margin-top: 1.8em;
            margin-bottom: 1em;
            font-weight: 700;
        }

        .article-body .cms-article-content h3 {
            margin-top: 1.5em;
            margin-bottom: 0.8em;
            font-weight: 600;
        }

        .article-body .cms-article-content img {
            border-radius: 16px;
            box-shadow: var(--shadow-card);
            margin: 1.5em 0;
        }

        .article-body .cms-article-content blockquote {
            border-left: 4px solid var(--accent);
            margin-left: 0;
            padding-left: 1.2em;
            background: rgba(69, 197, 184, 0.06);
            padding-top: 0.8em;
            padding-bottom: 0.8em;
            border-radius: 0 12px 12px 0;
            color: var(--text-secondary);
            font-style: italic;
        }

        .article-empty {
            max-width: 780px;
            margin: 0 auto;
            padding: 80px 20px;
            text-align: center;
            background: var(--card-bg);
            border: 1px dashed var(--border);
            border-radius: var(--radius-lg);
        }

        .article-empty h2 {
            font-size: 24px;
            margin-bottom: 12px;
        }

        .article-empty p {
            color: var(--text-secondary);
            margin-bottom: 24px;
        }

        /* ===== 相关推荐 ===== */
        .related-section {
            max-width: 1240px;
            margin: 0 auto;
            padding: 64px 0 16px;
        }

        .related-section .section-top {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 28px;
            gap: 16px;
            flex-wrap: wrap;
        }

        .related-section .section-top h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.25;
        }

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

        .related-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: all 0.3s ease;
            box-shadow: var(--shadow-card);
        }

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

        .related-card .related-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            display: block;
        }

        .related-card .related-body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .related-card .related-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .related-card .related-title a {
            color: inherit;
        }

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

        .related-card .related-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card .related-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* ===== 返回按钮 ===== */
        .back-section {
            text-align: center;
            padding: 40px 0 0;
        }

        .btn-outline-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            border: 1px solid var(--accent);
            color: var(--accent);
            padding: 12px 32px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            transition: all 0.2s ease;
        }

        .btn-outline-back:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(69, 197, 184, 0.25);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary-dark);
            color: #fff;
            padding: 64px 0 28px;
            margin-top: 40px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 48px;
        }

        .footer-brand p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
            margin-top: 16px;
            max-width: 340px;
        }

        .brand-inner {
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .footer-brand .brand-text {
            font-size: 20px;
        }

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

        .footer-links h4,
        .footer-contact h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .footer-links a,
        .footer-contact a {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.6;
            display: inline-block;
            transition: color 0.2s ease;
        }

        .footer-links a:hover,
        .footer-contact a:hover {
            color: var(--accent);
        }

        .footer-contact address {
            color: var(--text-muted);
            font-size: 14px;
            font-style: normal;
            margin-top: 8px;
            line-height: 1.6;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            color: var(--text-muted);
            font-size: 13px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991px) {
            .sidebar {
                display: none;
            }

            .mobile-topbar {
                display: flex;
            }

            .content-wrapper {
                margin-left: 0;
                padding-top: 58px;
            }

            .article-page {
                padding-top: 24px;
                padding-bottom: 48px;
            }

            .article-header h1 {
                font-size: 28px;
            }

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

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

        @media (max-width: 767px) {
            .main-container {
                padding: 0 16px;
            }

            .article-page {
                padding-top: 16px;
            }

            .article-header h1 {
                font-size: 24px;
                line-height: 1.4;
                letter-spacing: 0;
            }

            .article-meta {
                gap: 10px;
                font-size: 13px;
                flex-direction: column;
                align-items: flex-start;
            }

            .breadcrumb-nav {
                font-size: 13px;
                margin-bottom: 20px;
            }

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

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

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
                margin-bottom: 32px;
            }

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

            .btn-outline-back {
                width: 100%;
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .related-section {
                padding-top: 40px;
            }

            .related-grid {
                gap: 16px;
            }

            .article-body .cms-article-content {
                font-size: 15px;
                line-height: 1.85;
            }

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

            .article-header h1 {
                font-size: 22px;
            }

            .related-section .section-top {
                margin-bottom: 20px;
            }
        }

/* roulang page: category1 */
:root {
  --primary: #1C2B33;
  --primary-dark: #122027;
  --accent: #45C5B8;
  --amber: #F2A33C;
  --amber-dark: #E27C3A;
  --bg: #F6F5F1;
  --card-bg: #FFFFFF;
  --text: #22333D;
  --text-secondary: #5B6E7B;
  --text-muted: #8A9BA6;
  --border: #E3EDEC;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-btn: 12px;
  --shadow-card: 0 12px 40px rgba(18,32,39,0.08);
  --shadow-hover: 0 20px 60px rgba(18,32,39,0.16);
  --font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-family);
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  margin: 0;
  font-size: 16px;
}
img { max-width: 100%; height: auto; }
a { color: var(--accent); text-decoration: none; transition: color .2s; }
a:hover { color: var(--amber-dark); }
.container { max-width: 1240px; }
.btn { border-radius: var(--radius-btn); padding: 12px 28px; font-size: 15px; font-weight: 600; transition: all .2s; border: none; }
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn-amber {
  background: linear-gradient(135deg, var(--amber) 0%, var(--amber-dark) 100%);
  color: #fff !important;
  box-shadow: 0 4px 20px rgba(242,163,60,0.25);
}
.btn-amber:hover { box-shadow: 0 8px 28px rgba(242,163,60,0.35); }
.btn-outline-white {
  background: transparent;
  color: #fff !important;
  border: 1px solid rgba(255,255,255,0.6);
}
.btn-outline-white:hover { background: #fff; color: var(--primary-dark) !important; }
.btn-outline-primary-custom {
  background: transparent;
  color: var(--primary) !important;
  border: 1px solid var(--primary);
}
.btn-outline-primary-custom:hover { background: var(--primary); color: #fff !important; }
.main-container { max-width: 1240px; margin: 0 auto; padding: 0 24px; }

/* ===== 侧边导航 ===== */
.sidebar {
  width: 260px;
  height: 100vh;
  position: fixed;
  left: 0; top: 0;
  background: var(--primary-dark);
  display: flex;
  flex-direction: column;
  z-index: 1040;
  padding: 32px 20px 24px;
}
.sidebar-brand { padding: 0 12px 28px; border-bottom: 1px solid rgba(255,255,255,0.08); }
.brand-inner { display: flex; align-items: center; gap: 12px; }
.brand-logo {
  width: 42px; height: 42px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--primary) 100%);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 20px; font-weight: 700; color: #fff;
  flex-shrink: 0;
}
.brand-text { font-size: 20px; font-weight: 700; color: #fff; letter-spacing: 1px; }
.sidebar-menu { flex: 1; padding-top: 20px; display: flex; flex-direction: column; gap: 4px; }
.menu-item {
  display: flex; align-items: center; gap: 12px;
  padding: 0 14px; height: 48px;
  border-radius: 12px;
  color: rgba(255,255,255,0.85);
  font-size: 15px;
  border-left: 4px solid transparent;
  transition: background .2s, color .2s, border-color .2s;
}
.menu-item svg { width: 20px; height: 20px; flex-shrink: 0; }
.menu-item:hover { background: rgba(69,197,184,0.15); color: #fff; }
.menu-item.active { background: rgba(69,197,184,0.22); color: #fff; border-left-color: var(--accent); font-weight: 600; }
.sidebar-contacts {
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex; flex-direction: column; gap: 6px;
  font-size: 13px; color: var(--text-muted);
}
.sidebar-contacts a { color: var(--text-muted); font-size: 13px; }
.sidebar-contacts a:hover { color: var(--accent); }
.main-content { margin-left: 260px; }

/* ===== 移动端导航 ===== */
.mobile-navbar { display: none; }
@media (max-width: 991.98px) {
  .sidebar { display: none !important; }
  .main-content { margin-left: 0; }
  .mobile-navbar { display: block; }
}
.mobile-navbar {
  background: var(--primary-dark);
  min-height: 58px;
  padding: 0;
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1050;
}
.mobile-navbar .container-fluid { padding: 0 16px; min-height: 58px; display: flex; align-items: center; }
.mobile-navbar .navbar-brand { display: flex; align-items: center; gap: 10px; margin: 0; padding: 0; }
.mobile-navbar .brand-logo { width: 34px; height: 34px; font-size: 16px; border-radius: 10px; }
.mobile-navbar .brand-text { font-size: 18px; color: #fff; }
.mobile-navbar .navbar-toggler {
  border: 1px solid rgba(255,255,255,0.5);
  border-radius: 8px;
  padding: 6px 10px;
}
.mobile-navbar .navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(69,197,184,0.25); }
.mobile-navbar .navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255,255,255,0.9%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}
.mobile-navbar .navbar-collapse {
  background: var(--primary-dark);
  margin: 0;
  padding: 16px 20px 24px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.mobile-menu-links { display: flex; flex-direction: column; gap: 6px; }
.mobile-link {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 14px;
  border-radius: 12px;
  color: rgba(255,255,255,0.85);
  font-size: 15px;
  border-left: 4px solid transparent;
}
.mobile-link svg { width: 20px; height: 20px; flex-shrink: 0; }
.mobile-link:hover { background: rgba(69,197,184,0.15); color: #fff; }
.mobile-link.active { background: rgba(69,197,184,0.22); color: #fff; border-left-color: var(--accent); font-weight: 600; }
.mobile-menu-contacts {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex; flex-direction: column; gap: 6px;
  font-size: 13px; color: var(--text-muted);
}
.mobile-menu-contacts a { color: var(--text-muted); font-size: 13px; }

/* ===== Hero ===== */
.category-hero {
  position: relative;
  background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
  padding: 96px 0;
}
.category-hero::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(120deg, rgba(18,32,39,0.95) 0%, rgba(18,32,39,0.8) 55%, rgba(18,32,39,0.5) 100%);
}
.hero-content { position: relative; max-width: 680px; }
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(69,197,184,0.18);
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 40px;
  letter-spacing: 1px;
  margin-bottom: 20px;
}
.hero-eyebrow::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--amber);
}
.category-hero h1 {
  font-size: 44px;
  line-height: 1.15;
  font-weight: 700;
  color: #fff;
  margin: 0 0 16px;
  letter-spacing: 1px;
}
.category-hero p {
  font-size: 16px;
  line-height: 1.8;
  color: rgba(255,255,255,0.85);
  margin-bottom: 32px;
  max-width: 560px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* ===== 分类介绍 ===== */
.category-intro { padding: 96px 0; }
.section-tag {
  display: inline-block;
  background: rgba(69,197,184,0.12);
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
  padding: 5px 16px;
  border-radius: 40px;
  letter-spacing: 1px;
  margin-bottom: 16px;
}
.category-intro h2 {
  font-size: 32px;
  line-height: 1.25;
  font-weight: 700;
  color: var(--primary);
  margin: 0 0 24px;
}
.category-intro p {
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 20px;
}
.intro-image {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  object-fit: cover;
}
.intro-image-wrap { position: relative; }
.intro-badge {
  position: absolute;
  bottom: 20px; left: 20px;
  background: rgba(18,32,39,0.88);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: 40px;
  backdrop-filter: blur(4px);
  border: 1px solid rgba(69,197,184,0.3);
}

/* ===== 数据条 ===== */
.data-band {
  background: var(--primary-dark);
  padding: 56px 0;
}
.data-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: center;
}
.data-badge {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-md);
  padding: 20px 32px;
  text-align: center;
  min-width: 180px;
  transition: background .2s, border-color .2s;
}
.data-badge:hover { background: rgba(255,255,255,0.09); border-color: rgba(69,197,184,0.3); }
.data-number {
  display: block;
  font-size: 44px;
  line-height: 1.2;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  background: linear-gradient(135deg, var(--amber) 0%, var(--amber-dark) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.data-label {
  display: block;
  font-size: 14px;
  color: var(--accent);
  margin-top: 4px;
  letter-spacing: 1px;
}

/* ===== 供应卡片 ===== */
.category-cards { padding: 96px 0; }
.section-heading { text-align: center; max-width: 640px; margin: 0 auto 48px; }
.section-heading h2 {
  font-size: 32px;
  line-height: 1.25;
  font-weight: 700;
  color: var(--primary);
  margin: 0 0 12px;
}
.section-heading p { color: var(--text-secondary); font-size: 16px; }
.supply-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px;
  height: 100%;
  transition: border-color .2s, box-shadow .2s, transform .2s;
}
.supply-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.card-icon {
  width: 48px; height: 48px;
  border-radius: 14px;
  background: rgba(69,197,184,0.12);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: 18px;
  transition: background .2s, color .2s;
}
.card-icon svg { width: 24px; height: 24px; }
.supply-card:hover .card-icon { background: var(--accent); color: #fff; }
.supply-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 12px;
  line-height: 1.4;
}
.supply-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
}

/* ===== CTA ===== */
.cta-section { padding: 96px 0 80px; }
.cta-panel {
  position: relative;
  background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
  border-radius: var(--radius-lg);
  padding: 72px 48px;
  text-align: center;
  overflow: hidden;
}
.cta-panel::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(18,32,39,0.94) 0%, rgba(18,32,39,0.82) 100%);
}
.cta-panel > * { position: relative; }
.cta-panel h2 {
  font-size: 32px;
  font-weight: 700;
  color: #fff;
  margin: 0 0 12px;
  line-height: 1.25;
}
.cta-panel p { color: rgba(255,255,255,0.8); font-size: 16px; margin: 0 0 28px; }
.cta-panel .btn-amber { min-width: 180px; }

/* ===== 页脚 ===== */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,0.7);
  padding: 64px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.4fr;
  gap: 48px;
  margin-bottom: 40px;
}
.footer-brand .brand-inner { margin-bottom: 16px; }
.footer-brand p { font-size: 14px; color: rgba(255,255,255,0.6); max-width: 320px; line-height: 1.7; }
.footer-links h4, .footer-contact h4 {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}
.footer-links a, .footer-contact a {
  display: block;
  color: rgba(255,255,255,0.6);
  font-size: 14px;
  margin-bottom: 10px;
  line-height: 1.6;
}
.footer-links a:hover, .footer-contact a:hover { color: var(--accent); }
.footer-contact address { font-size: 14px; color: rgba(255,255,255,0.6); font-style: normal; line-height: 1.6; margin: 0; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: rgba(255,255,255,0.45);
}

/* ===== 响应式 ===== */
@media (max-width: 991.98px) {
  .category-hero { padding: 72px 0; }
  .category-hero h1 { font-size: 34px; }
  .category-intro { padding: 64px 0; }
  .category-cards { padding: 64px 0; }
  .cta-section { padding: 64px 0; }
  .cta-panel { padding: 48px 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 767.98px) {
  .hero-actions .btn { width: 100%; }
  .category-intro h2, .section-heading h2 { font-size: 26px; }
  .data-badges { gap: 14px; }
  .data-badge { min-width: 140px; padding: 16px 20px; }
  .data-number { font-size: 34px; }
  .cta-panel h2 { font-size: 26px; }
  .footer-bottom { flex-direction: column; align-items: center; }
}
@media (max-width: 520px) {
  .main-container { padding: 0 16px; }
  .data-badge { min-width: 120px; }
  .supply-card { padding: 22px; }
}

/* roulang page: category2 */
:root{
  --primary:#1C2B33;
  --accent:#45C5B8;
  --accent-dark:#2E9E93;
  --amber:#F2A33C;
  --amber-dark:#E27C3A;
  --bg:#F6F5F1;
  --card:#FFFFFF;
  --text:#22333D;
  --text-secondary:#5B6E7B;
  --text-muted:#8A9BA6;
  --border:#E3EDEC;
  --dark-bg:#122027;
  --radius-lg:24px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow-card:0 12px 40px rgba(18,32,39,0.08);
  --shadow-hover:0 20px 60px rgba(18,32,39,0.16);
  --sidebar-width:260px;
}

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

html{
  scroll-behavior:smooth;
}

body{
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}

a{
  color:var(--accent);
  text-decoration:none;
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}

a:hover{
  color:var(--accent-dark);
}

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

button{
  font-family:inherit;
  cursor:pointer;
}

.container{
  max-width:1240px;
  padding-left:24px;
  padding-right:24px;
}

.btn{
  border-radius:12px;
  transition:transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
}

.btn:focus-visible,
a:focus-visible,
button:focus-visible{
  outline:3px solid rgba(69,197,184,.4);
  outline-offset:2px;
}

/* ===== sidebar ===== */
.sidebar{
  width:var(--sidebar-width);
  height:100vh;
  position:fixed;
  top:0;
  left:0;
  background:var(--dark-bg);
  color:#fff;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  padding:28px 0 24px;
  z-index:200;
}

.brand-box{
  display:flex;
  align-items:center;
  gap:12px;
  padding:0 24px;
  margin-bottom:28px;
}

.brand-logo{
  width:44px;
  height:44px;
  border-radius:12px;
  background:linear-gradient(135deg,var(--amber) 0%,var(--amber-dark) 100%);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:22px;
  font-weight:800;
  color:#fff;
  box-shadow:0 4px 20px rgba(242,163,60,.25);
  flex-shrink:0;
}

.brand-text{
  font-size:20px;
  font-weight:700;
  letter-spacing:.5px;
  color:#fff;
}

.sidebar-menu{
  display:flex;
  flex-direction:column;
  gap:4px;
  padding:0 12px;
}

.menu-item{
  display:flex;
  align-items:center;
  gap:12px;
  padding:0 14px;
  height:50px;
  border-radius:12px;
  color:rgba(255,255,255,.72);
  font-size:15px;
  border-left:4px solid transparent;
  transition:all .2s ease;
}

.menu-item svg{
  width:18px;
  height:18px;
  flex-shrink:0;
}

.menu-item:hover{
  background:rgba(69,197,184,.15);
  color:#fff;
}

.menu-item.active{
  background:rgba(69,197,184,.22);
  color:#fff;
  border-left-color:var(--accent);
  font-weight:600;
}

.sidebar-foot{
  padding:0 24px;
  font-size:13px;
  color:#8A9BA6;
  display:flex;
  flex-direction:column;
  gap:6px;
  line-height:1.5;
}

.sidebar-foot a{
  color:#8A9BA6;
}

.sidebar-foot a:hover{
  color:var(--accent);
}

/* ===== mobile header ===== */
.mobile-header{
  display:none;
  position:fixed;
  top:0;
  left:0;
  right:0;
  height:58px;
  background:var(--dark-bg);
  align-items:center;
  justify-content:space-between;
  padding:0 16px;
  z-index:300;
}

.mobile-header .brand-inner{
  display:flex;
  align-items:center;
  gap:10px;
}

.mobile-header .brand-logo{
  width:36px;
  height:36px;
  border-radius:10px;
  font-size:18px;
}

.mobile-header .brand-text{
  font-size:17px;
}

.menu-toggle{
  display:inline-flex;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:42px;
  height:42px;
  background:transparent;
  border:1.5px solid rgba(255,255,255,.6);
  border-radius:10px;
  padding:10px;
  align-items:center;
  transition:border-color .2s ease;
}

.menu-toggle .bar{
  display:block;
  width:18px;
  height:2px;
  background:#fff;
  border-radius:2px;
  transition:transform .2s ease, opacity .2s ease;
}

.menu-toggle:hover{
  border-color:#fff;
}

.menu-toggle[aria-expanded="true"] .bar:nth-child(1){
  transform:translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .bar:nth-child(2){
  opacity:0;
}

.menu-toggle[aria-expanded="true"] .bar:nth-child(3){
  transform:translateY(-7px) rotate(-45deg);
}

.mobile-menu{
  position:fixed;
  top:58px;
  left:0;
  right:0;
  z-index:290;
  background:#162A36;
  padding:18px;
  border-top:1px solid rgba(255,255,255,.06);
  border-bottom:1px solid rgba(255,255,255,.06);
}

.mobile-menu .menu-item{
  color:rgba(255,255,255,.8);
}

.mobile-menu .menu-item:hover,
.mobile-menu .menu-item.active{
  color:#fff;
}

/* ===== main layout ===== */
.main-wrap{
  margin-left:var(--sidebar-width);
  min-height:100vh;
  display:flex;
  flex-direction:column;
}

.page-container{
  max-width:1240px;
  margin:0 auto;
  padding:32px 24px 0;
  width:100%;
  flex:1;
}

/* ===== category hero ===== */
.cat-hero{
  background-image:linear-gradient(135deg,rgba(18,32,39,.94) 0%,rgba(28,43,51,.82) 55%,rgba(46,79,94,.72) 100%),url('/assets/images/backpic/back-3.webp');
  background-size:cover;
  background-position:center;
  border-radius:var(--radius-lg);
  padding:56px 48px;
  color:#fff;
  position:relative;
  overflow:hidden;
  min-height:280px;
  display:flex;
  align-items:center;
}

.cat-hero::after{
  content:'';
  position:absolute;
  right:-80px;
  bottom:-80px;
  width:280px;
  height:280px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(69,197,184,.18) 0%,rgba(69,197,184,0) 70%);
  pointer-events:none;
}

.hero-content{
  position:relative;
  z-index:2;
  max-width:680px;
}

.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(69,197,184,.16);
  border:1px solid rgba(69,197,184,.35);
  color:var(--accent);
  font-size:13px;
  font-weight:600;
  border-radius:999px;
  padding:6px 16px;
  margin-bottom:20px;
  letter-spacing:.4px;
}

.cat-hero h1{
  font-size:44px;
  line-height:1.15;
  font-weight:800;
  margin-bottom:14px;
  letter-spacing:.5px;
}

.cat-hero p{
  font-size:16px;
  line-height:1.8;
  color:rgba(255,255,255,.82);
  margin-bottom:28px;
  max-width:560px;
}

.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}

.btn-amber{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:linear-gradient(135deg,var(--amber) 0%,var(--amber-dark) 100%);
  color:#fff;
  font-weight:700;
  font-size:15px;
  padding:14px 32px;
  border-radius:12px;
  border:none;
  box-shadow:0 4px 20px rgba(242,163,60,.28);
  transition:transform .2s ease,box-shadow .2s ease;
}

.btn-amber:hover{
  transform:translateY(-2px);
  box-shadow:0 8px 28px rgba(242,163,60,.38);
  color:#fff;
}

.btn-outline-light{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:transparent;
  border:1.5px solid rgba(255,255,255,.6);
  color:#fff;
  font-weight:600;
  font-size:15px;
  padding:14px 32px;
  border-radius:12px;
  transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}

.btn-outline-light:hover{
  background:#fff;
  color:var(--primary);
  border-color:#fff;
  transform:translateY(-2px);
}

/* ===== two column ===== */
.cat-main{
  display:grid;
  grid-template-columns:240px minmax(0,1fr);
  gap:40px;
  margin-top:40px;
}

.cat-toc{
  position:sticky;
  top:32px;
  height:fit-content;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  padding:24px 20px;
  box-shadow:var(--shadow-card);
}

.toc-head{
  font-size:12px;
  font-weight:700;
  letter-spacing:1.6px;
  text-transform:uppercase;
  color:var(--text-muted);
  margin-bottom:16px;
  padding-left:4px;
}

.toc-list{
  list-style:none;
  display:flex;
  flex-direction:column;
  gap:2px;
  margin:0;
  padding:0;
}

.toc-list a{
  display:block;
  padding:9px 12px;
  border-radius:10px;
  color:var(--text-secondary);
  font-size:14px;
  font-weight:500;
  border-left:3px solid transparent;
  transition:all .2s ease;
}

.toc-list a:hover{
  color:var(--accent);
  background:rgba(69,197,184,.08);
  border-left-color:var(--accent);
}

/* ===== content sections ===== */
.cat-content{
  min-width:0;
  display:flex;
  flex-direction:column;
  gap:32px;
}

.cat-section{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:36px;
  box-shadow:var(--shadow-card);
  scroll-margin-top:90px;
  transition:box-shadow .3s ease,border-color .3s ease;
}

.cat-section:hover{
  border-color:rgba(69,197,184,.4);
  box-shadow:var(--shadow-hover);
}

.cat-section h2{
  font-size:26px;
  line-height:1.3;
  font-weight:800;
  color:var(--primary);
  margin-bottom:20px;
  padding-left:16px;
  position:relative;
}

.cat-section h2::before{
  content:'';
  position:absolute;
  left:0;
  top:6px;
  bottom:6px;
  width:4px;
  background:var(--accent);
  border-radius:4px;
}

.cat-section p{
  color:var(--text-secondary);
  margin-bottom:18px;
  line-height:1.85;
}

.content-figure{
  border-radius:var(--radius-md);
  overflow:hidden;
  margin:24px 0;
  box-shadow:var(--shadow-card);
  background:var(--bg);
}

.content-figure img{
  width:100%;
  height:auto;
  object-fit:cover;
}

.content-figure figcaption{
  font-size:13px;
  color:var(--text-muted);
  text-align:center;
  padding:8px 16px;
  background:#fff;
  border-top:1px solid var(--border);
}

/* ===== scenes ===== */
.scene-list{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
  margin-top:22px;
}

.scene-item{
  background:var(--bg);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  padding:20px;
  display:flex;
  gap:14px;
  align-items:flex-start;
  transition:all .25s ease;
}

.scene-item:hover{
  border-color:var(--accent);
  background:#fff;
  box-shadow:var(--shadow-card);
  transform:translateY(-3px);
}

.scene-item h3{
  font-size:16px;
  font-weight:700;
  color:var(--primary);
  margin-bottom:6px;
  line-height:1.4;
}

.scene-item p{
  font-size:14px;
  line-height:1.7;
  color:var(--text-secondary);
  margin-bottom:0;
}

.scene-icon{
  width:44px;
  height:44px;
  border-radius:12px;
  background:rgba(69,197,184,.12);
  color:var(--accent);
  display:flex;
  align-items:center;
  justify-content:center;
  flex-shrink:0;
  transition:all .25s ease;
}

.scene-icon svg{
  width:22px;
  height:22px;
}

.scene-item:hover .scene-icon{
  background:var(--accent);
  color:#fff;
}

/* ===== steps ===== */
.step-list{
  list-style:none;
  display:flex;
  flex-direction:column;
  gap:18px;
  margin-top:24px;
  padding:0;
}

.step-item{
  display:flex;
  gap:16px;
  align-items:flex-start;
}

.step-num{
  width:38px;
  height:38px;
  border-radius:50%;
  background:linear-gradient(135deg,var(--amber) 0%,var(--amber-dark) 100%);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:800;
  font-size:14px;
  flex-shrink:0;
  box-shadow:0 4px 20px rgba(242,163,60,.25);
}

.step-body h3{
  font-size:16px;
  font-weight:700;
  color:var(--primary);
  margin-bottom:4px;
}

.step-body p{
  font-size:14px;
  line-height:1.7;
  color:var(--text-secondary);
  margin-bottom:0;
}

/* ===== faq ===== */
.faq-accordion .accordion-item{
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  overflow:hidden;
  margin-bottom:16px;
  background:var(--card);
  box-shadow:none;
}

.faq-accordion .accordion-item:last-child{
  margin-bottom:0;
}

.faq-accordion .accordion-button{
  background:#fff;
  color:var(--text);
  font-size:16px;
  font-weight:700;
  padding:20px 24px;
  box-shadow:none;
  border-radius:0;
  line-height:1.5;
  position:relative;
  transition:background .2s ease,color .2s ease;
}

.faq-accordion .accordion-button::after{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235B6E7B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-size:1.1rem;
  transition:transform .25s ease;
}

.faq-accordion .accordion-button:hover{
  background:rgba(69,197,184,.04);
}

.faq-accordion .accordion-button:not(.collapsed){
  background:rgba(69,197,184,.06);
  color:var(--primary);
}

.faq-accordion .accordion-button:not(.collapsed)::after{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2345C5B8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  transform:rotate(-180deg);
}

.faq-accordion .accordion-button:focus{
  box-shadow:0 0 0 4px rgba(69,197,184,.15);
}

.faq-accordion .accordion-body{
  color:var(--text-secondary);
  font-size:15px;
  line-height:1.75;
  padding:0 24px 22px;
  border-top:1px solid var(--border);
}

/* ===== CTA ===== */
.cat-cta{
  position:relative;
  overflow:hidden;
  background-image:linear-gradient(135deg,rgba(18,32,39,.94) 0%,rgba(28,43,51,.88) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  border-radius:var(--radius-lg);
  padding:52px 40px;
  color:#fff;
  text-align:center;
  margin-top:48px;
}

.cat-cta::after{
  content:'';
  position:absolute;
  left:-60px;
  top:-60px;
  width:220px;
  height:220px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(242,163,60,.16) 0%,rgba(242,163,60,0) 70%);
  pointer-events:none;
}

.cat-cta h2{
  font-size:28px;
  font-weight:800;
  margin-bottom:12px;
  position:relative;
  z-index:2;
}

.cat-cta p{
  font-size:15px;
  color:rgba(255,255,255,.78);
  max-width:600px;
  margin:0 auto 28px;
  position:relative;
  z-index:2;
}

.cat-cta .hero-actions{
  justify-content:center;
  position:relative;
  z-index:2;
}

/* ===== footer ===== */
.site-footer{
  background:var(--dark-bg);
  color:rgba(255,255,255,.72);
  padding:56px 24px 24px;
  margin-top:64px;
}

.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr;
  gap:40px;
  max-width:1160px;
  margin:0 auto;
}

.footer-brand p{
  font-size:14px;
  line-height:1.7;
  color:rgba(255,255,255,.6);
  margin-top:16px;
  max-width:340px;
}

.brand-inner{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:#fff;
}

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

.footer-links h4,
.footer-contact h4{
  font-size:15px;
  font-weight:700;
  color:#fff;
  margin-bottom:6px;
}

.footer-links a,
.footer-contact a{
  color:rgba(255,255,255,.68);
  font-size:14px;
  transition:color .2s ease;
}

.footer-links a:hover,
.footer-contact a:hover{
  color:var(--accent);
}

.footer-contact address{
  font-style:normal;
  font-size:14px;
  color:rgba(255,255,255,.68);
}

.footer-bottom{
  max-width:1160px;
  margin:40px auto 0;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.45);
}

/* ===== responsive ===== */
@media (max-width:991.98px){
  .sidebar{
    display:none;
  }

  .mobile-header{
    display:flex;
  }

  .main-wrap{
    margin-left:0;
    padding-top:58px;
  }

  .page-container{
    padding:20px 16px 0;
  }

  .cat-hero{
    padding:40px 28px;
    min-height:auto;
  }

  .cat-hero h1{
    font-size:36px;
  }

  .cat-main{
    grid-template-columns:1fr;
    gap:24px;
    margin-top:24px;
  }

  .cat-toc{
    position:static;
    box-shadow:none;
    padding:16px 0;
    background:transparent;
    border:none;
  }

  .toc-head{
    margin-bottom:10px;
  }

  .toc-list{
    display:flex;
    flex-direction:row;
    gap:8px;
    overflow-x:auto;
    padding-bottom:8px;
  }

  .toc-list a{
    white-space:nowrap;
    background:var(--card);
    border:1px solid var(--border);
    border-radius:999px;
    padding:6px 16px;
    font-size:13px;
    border-left:1px solid var(--border);
  }

  .toc-list a:hover{
    border-color:var(--accent);
  }

  .cat-section{
    padding:28px 22px;
  }

  .scene-list{
    grid-template-columns:1fr 1fr;
  }

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

@media (max-width:767.98px){
  .cat-hero{
    padding:32px 22px;
    border-radius:20px;
  }

  .cat-hero h1{
    font-size:32px;
  }

  .cat-hero p{
    font-size:15px;
  }

  .hero-actions{
    flex-direction:column;
    align-items:stretch;
  }

  .hero-actions .btn-amber,
  .hero-actions .btn-outline-light{
    justify-content:center;
  }

  .cat-section{
    padding:24px 18px;
    border-radius:20px;
  }

  .cat-section h2{
    font-size:22px;
  }

  .scene-list{
    grid-template-columns:1fr;
  }

  .cat-cta{
    padding:40px 24px;
    border-radius:20px;
    margin-top:36px;
  }

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

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

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

@media (max-width:520px){
  .page-container{
    padding:16px 12px 0;
  }

  .cat-hero h1{
    font-size:28px;
  }

  .cat-hero p{
    font-size:14px;
  }

  .cat-main{
    gap:16px;
    margin-top:16px;
  }

  .cat-section{
    padding:20px 16px;
  }

  .step-item{
    gap:12px;
  }

  .step-num{
    width:32px;
    height:32px;
    font-size:13px;
  }

  .accordion-button{
    font-size:15px;
    padding:16px 18px;
  }

  .accordion-body{
    padding:0 18px 18px;
  }

  .btn-amber,
  .btn-outline-light{
    padding:12px 24px;
    font-size:14px;
  }
}