/* roulang page: index */
:root{
    --brand-900:#0E4239; --brand-700:#14655A; --brand-500:#1E8C77; --brand-200:#A8D6C8; --brand-50:#EAF4F0;
    --accent-600:#B4602F; --accent-100:#F6E7DA;
    --ink:#17211D; --ink-soft:#5A6761; --line:#E2DCD0; --bg:#F6F3EC; --surface:#FFFFFF; --danger:#B4472F;
    --grad-brand: linear-gradient(135deg,#0E4239 0%,#1E8C77 58%,#7FBFAC 100%);
    --radius-lg:24px; --radius-md:16px; --radius-sm:10px; --radius-btn:12px;
    --shadow-card:0 8px 24px rgba(14,66,57,.07);
    --shadow-hover:0 16px 36px rgba(14,66,57,.13);
    --sidebar-w:240px;
  }
  *,*::before,*::after{ box-sizing:border-box; }
  html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
  body{
    margin:0; background:var(--bg); color:var(--ink);
    font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
    font-size:16px; line-height:1.8; -webkit-font-smoothing:antialiased;
  }
  body.drawer-open{ overflow:hidden; }
  img{ max-width:100%; display:block; }
  a{ color:inherit; text-decoration:none; transition:color .18s ease-out; }
  a:hover{ color:var(--brand-700); text-decoration:underline; text-underline-offset:4px; }
  button{ font-family:inherit; }
  h1,h2,h3,h4,p,ul,ol,figure{ margin:0; }
  ul,ol{ padding-left:1.4em; }
  :focus-visible{ outline:2px solid var(--accent-600); outline-offset:2px; border-radius:4px; }
  ::selection{ background:var(--brand-200); color:var(--brand-900); }
  ::-webkit-scrollbar{ width:10px; height:10px; }
  ::-webkit-scrollbar-thumb{ background:#CBD8D2; border-radius:999px; }
  ::-webkit-scrollbar-track{ background:transparent; }
  .num{ font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace; font-variant-numeric:tabular-nums; }

  /* ============ 布局 ============ */
  .app{ min-height:100vh; }
  .sidebar{
    position:fixed; top:0; left:0; width:var(--sidebar-w); height:100vh;
    background:var(--surface); border-right:1px solid var(--line);
    display:flex; flex-direction:column; padding:22px 16px; z-index:60;
  }
  .main-wrap{ margin-left:var(--sidebar-w); min-height:100vh; }
  .container-page{ width:100%; max-width:1200px; margin:0 auto; padding:0 40px; }

  /* ============ Logo ============ */
  .logo{ display:flex; align-items:center; gap:10px; padding:4px 8px 18px; }
  .logo-mark{ width:34px; height:34px; flex:0 0 auto; }
  .brand-text{ display:flex; flex-direction:column; line-height:1.25; }
  .brand-name{ font-size:15px; font-weight:700; letter-spacing:.01em; color:var(--brand-900); }
  .brand-sub{ font-size:11px; color:var(--ink-soft); letter-spacing:.04em; }

  /* ============ 侧栏导航 ============ */
  .nav-group{ display:flex; flex-direction:column; gap:4px; margin-top:6px; }
  .nav-item{
    display:flex; align-items:center; gap:10px; height:44px; padding:0 12px;
    border-radius:12px; font-size:14.5px; color:var(--ink); position:relative;
    transition:background .18s ease-out,color .18s ease-out;
  }
  .nav-item svg{ width:20px; height:20px; flex:0 0 auto; color:var(--brand-500); }
  .nav-item:hover{ background:var(--brand-50); color:var(--brand-700); text-decoration:none; }
  .nav-item.active{ background:var(--brand-50); color:var(--brand-700); font-weight:600; }
  .nav-item.active::before{
    content:""; position:absolute; left:0; top:10px; bottom:10px; width:3px;
    border-radius:999px; background:var(--accent-600);
  }
  .sidebar-divider{ height:1px; background:var(--line); margin:20px 8px; }
  .side-stat{
    background:var(--brand-50); border:1px solid #D5E7E0; border-radius:var(--radius-md);
    padding:14px 14px 12px; margin:0 4px;
  }
  .side-stat .k{ font-size:12px; color:var(--ink-soft); letter-spacing:.04em; }
  .side-stat .v{ display:flex; align-items:baseline; gap:6px; margin-top:4px; }
  .side-stat .v strong{ font-size:24px; color:var(--brand-900); font-weight:700; }
  .side-stat .v span{ font-size:12px; color:var(--ink-soft); }
  .side-cta{
    margin-top:auto; display:flex; align-items:center; justify-content:center;
    height:46px; border-radius:var(--radius-btn); color:#fff; font-size:14.5px; font-weight:600;
    background:var(--grad-brand); box-shadow:0 8px 18px rgba(14,66,57,.22);
    transition:transform .18s ease-out,filter .18s ease-out,box-shadow .18s ease-out;
  }
  .side-cta:hover{ color:#fff; text-decoration:none; filter:brightness(1.06); transform:translateY(-1px); box-shadow:0 12px 24px rgba(14,66,57,.26); }
  .side-cta:active{ transform:translateY(0); }

  /* ============ 移动端顶部栏 ============ */
  .topbar{
    display:none; position:fixed; top:0; left:0; right:0; height:60px; z-index:70;
    background:var(--surface); border-bottom:1px solid var(--line);
    align-items:center; justify-content:space-between; padding:0 16px;
  }
  .topbar .brand-name{ font-size:14px; }
  .hamburger{
    width:44px; height:44px; display:flex; align-items:center; justify-content:center;
    border:1px solid var(--line); border-radius:12px; background:var(--surface); cursor:pointer;
  }
  .hamburger span{ display:block; width:18px; height:2px; background:var(--brand-900); position:relative; }
  .hamburger span::before,.hamburger span::after{
    content:""; position:absolute; left:0; width:18px; height:2px; background:var(--brand-900);
  }
  .hamburger span::before{ top:-6px; } .hamburger span::after{ top:6px; }

  .drawer-mask{
    position:fixed; inset:0; background:rgba(23,33,29,.5); z-index:80;
    opacity:0; visibility:hidden; transition:opacity .2s ease-out,visibility .2s ease-out;
  }
  .drawer{
    position:fixed; top:0; right:0; bottom:0; width:82vw; max-width:320px; z-index:90;
    background:var(--brand-900); color:#fff; padding:20px 18px; display:flex; flex-direction:column;
    transform:translateX(100%); transition:transform .24s ease-out; overflow-y:auto;
  }
  .drawer-head{ display:flex; align-items:center; justify-content:space-between; gap:12px; margin-bottom:18px; }
  .drawer-head .brand-name{ color:#fff; font-size:14px; }
  .drawer-head .brand-sub{ color:rgba(255,255,255,.62); }
  .drawer-close{
    width:44px; height:44px; display:flex; align-items:center; justify-content:center;
    border:1px solid rgba(255,255,255,.28); border-radius:12px; background:transparent; color:#fff;
    font-size:20px; cursor:pointer;
  }
  .drawer .nav-item{ color:#fff; }
  .drawer .nav-item svg{ color:var(--brand-200); }
  .drawer .nav-item:hover{ background:rgba(255,255,255,.12); color:#fff; }
  .drawer .nav-item.active{ background:rgba(255,255,255,.16); color:#fff; }
  .drawer .nav-item.active::before{ background:var(--accent-100); }
  .drawer .side-cta{ margin-top:26px; }
  body.drawer-open .drawer{ transform:translateX(0); }
  body.drawer-open .drawer-mask{ opacity:1; visibility:visible; }

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex; align-items:center; justify-content:center; gap:8px;
    height:48px; padding:0 22px; border-radius:var(--radius-btn); font-size:15px; font-weight:600;
    border:1px solid transparent; cursor:pointer; transition:all .18s ease-out; white-space:nowrap;
  }
  .btn-primary{ background:var(--grad-brand); color:#fff; box-shadow:0 10px 22px rgba(14,66,57,.2); }
  .btn-primary:hover{ color:#fff; text-decoration:none; filter:brightness(1.06); transform:translateY(-1px); box-shadow:0 14px 28px rgba(14,66,57,.26); }
  .btn-primary:active{ transform:translateY(0); }
  .btn-ghost{ background:transparent; border-color:rgba(255,255,255,.7); color:#fff; }
  .btn-ghost:hover{ background:rgba(255,255,255,.14); color:#fff; text-decoration:none; }
  .btn-line{ background:var(--surface); border-color:var(--brand-700); color:var(--brand-700); }
  .btn-line:hover{ background:var(--brand-50); color:var(--brand-700); text-decoration:none; }
  .btn-disabled{ opacity:.4; cursor:not-allowed; }
  .link-arrow{ display:inline-flex; align-items:center; gap:6px; color:var(--brand-700); font-weight:600; font-size:14.5px; }
  .link-arrow svg{ width:16px; height:16px; transition:transform .18s ease-out; }
  .link-arrow:hover{ text-decoration:none; }
  .link-arrow:hover svg{ transform:translateX(4px); }

  /* ============ 徽章 ============ */
  .badge{
    display:inline-flex; align-items:center; gap:6px; height:26px; padding:0 10px;
    border-radius:999px; font-size:12.5px; line-height:1; white-space:nowrap;
  }
  .badge-brand{ background:var(--brand-50); color:var(--brand-700); }
  .badge-accent{ background:var(--accent-100); color:var(--accent-600); }
  .badge-outline{ background:rgba(255,255,255,.12); color:#fff; border:1px solid rgba(255,255,255,.45); }
  .badge .dot{ width:6px; height:6px; border-radius:999px; background:currentColor; }

  /* ============ Hero ============ */
  .hero{
    position:relative; min-height:560px; display:flex; align-items:center;
    background-image:url('/assets/images/backpic/back-1.webp');
    background-size:cover; background-position:center; overflow:hidden;
  }
  .hero::before{
    content:""; position:absolute; inset:0;
    background:linear-gradient(135deg,rgba(14,66,57,.94) 0%,rgba(20,101,90,.86) 45%,rgba(30,140,119,.72) 100%);
  }
  .hero::after{
    content:""; position:absolute; right:-80px; bottom:-120px; width:420px; height:420px;
    border-radius:50%; border:1px solid rgba(255,255,255,.16); opacity:.7;
  }
  .hero-inner{ position:relative; z-index:2; padding:88px 0 72px; max-width:640px; }
  .eyebrow{
    display:inline-flex; align-items:center; gap:8px; height:28px; padding:0 12px;
    border:1px solid rgba(255,255,255,.5); border-radius:999px; color:#fff;
    font-size:12px; letter-spacing:.18em; text-transform:uppercase;
  }
  .hero h1{
    margin-top:20px; font-size:clamp(30px,4vw,46px); line-height:1.18; font-weight:600; color:#fff;
    letter-spacing:-.01em;
  }
  .hero-lead{ margin-top:18px; color:rgba(255,255,255,.92); font-size:17px; line-height:1.75; }
  .hero-lead span{ display:block; margin-top:6px; color:rgba(255,255,255,.78); font-size:15px; }
  .hero-actions{ display:flex; gap:14px; margin-top:30px; flex-wrap:wrap; }
  .stat-strip{ display:flex; flex-wrap:wrap; gap:12px; margin-top:40px; }
  .stat-pill{
    display:flex; align-items:center; gap:8px; height:36px; padding:0 16px;
    border-radius:999px; background:rgba(255,255,255,.12); border:1px solid rgba(255,255,255,.26);
    color:#fff; font-size:13px;
  }
  .stat-pill b{ font-size:16px; font-weight:700; }

  /* ============ 板块通用 ============ */
  .section{ padding:96px 0 0; }
  .section-head{ display:flex; align-items:flex-end; justify-content:space-between; gap:24px; flex-wrap:wrap; }
  .h2{
    position:relative; padding-left:14px; font-size:clamp(24px,2.6vw,32px); line-height:1.3;
    font-weight:600; color:var(--brand-900); letter-spacing:-.01em;
  }
  .h2::before{
    content:""; position:absolute; left:0; top:6px; width:3px; height:18px;
    background:var(--accent-600); border-radius:999px;
  }
  .section-note{ font-size:14px; color:var(--ink-soft); max-width:420px; }
  .section-lead{ margin-top:16px; max-width:720px; color:var(--ink-soft); font-size:16px; }

  /* ============ 对比表 ============ */
  .compare-card{
    margin-top:32px; background:var(--surface); border:1px solid var(--line);
    border-radius:var(--radius-lg); box-shadow:var(--shadow-card); overflow:hidden;
  }
  table.compare{ width:100%; border-collapse:collapse; font-size:14.5px; }
  table.compare th, table.compare td{ padding:16px 18px; text-align:left; border-bottom:1px solid var(--line); }
  table.compare thead th{ background:var(--brand-50); color:var(--brand-900); font-weight:600; font-size:13.5px; }
  table.compare tbody tr:hover{ background:#FBFAF6; }
  table.compare tbody tr:last-child td{ border-bottom:none; }
  table.compare td:first-child, table.compare th:first-child{ font-weight:600; color:var(--ink); }
  .col-highlight{ background:rgba(234,244,240,.55); position:relative; }
  table.compare thead th.col-highlight::after{
    content:""; position:absolute; top:0; left:0; right:0; height:3px; background:var(--grad-brand);
  }
  .mark-yes{ color:var(--brand-500); }
  .mark-no{ color:#B9B3A6; }
  .compare-mobile{ display:none; }
  .compare-mobile .m-card{
    margin-top:16px; background:var(--surface); border:1px solid var(--line);
    border-radius:var(--radius-md); box-shadow:var(--shadow-card); overflow:hidden;
  }
  .compare-mobile .m-head{
    padding:12px 16px; background:var(--brand-50); font-weight:600; color:var(--brand-900); font-size:14px;
  }
  .compare-mobile .m-row{
    display:flex; justify-content:space-between; gap:12px; padding:11px 16px;
    border-top:1px solid var(--line); font-size:13.5px;
  }
  .compare-mobile .m-row span:first-child{ color:var(--ink-soft); }

  /* ============ 等级亮点 ============ */
  .tier-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; margin-top:40px; align-items:start; }
  .tier-card{
    background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-lg);
    padding:28px 26px; box-shadow:var(--shadow-card); transition:box-shadow .2s ease-out,transform .2s ease-out;
  }
  .tier-card:hover{ box-shadow:var(--shadow-hover); transform:translateY(-2px); }
  .tier-card.mid{ transform:translateY(-16px); padding:34px 30px; box-shadow:0 18px 40px rgba(14,66,57,.12); }
  .tier-card.mid:hover{ transform:translateY(-18px); }
  .tier-card h3{ margin-top:14px; font-size:21px; font-weight:600; color:var(--brand-900); }
  .tier-card p.tier-desc{ margin-top:8px; font-size:14.5px; color:var(--ink-soft); }
  .tier-card ul{ margin-top:16px; list-style:none; padding:0; display:flex; flex-direction:column; gap:10px; }
  .tier-card ul li{ position:relative; padding-left:20px; font-size:14.5px; color:var(--ink); }
  .tier-card ul li::before{
    content:""; position:absolute; left:0; top:9px; width:8px; height:8px; border-radius:2px;
    background:var(--brand-200);
  }
  .tier-foot{ margin-top:20px; padding-top:16px; border-top:1px solid var(--line); }

  /* ============ 内容预览卡 ============ */
  .content-grid{ display:grid; grid-template-columns:1.35fr 1fr 1fr; grid-template-rows:auto auto; gap:22px; margin-top:36px; }
  .content-card{
    background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-md);
    overflow:hidden; box-shadow:var(--shadow-card); display:flex; flex-direction:column;
    transition:box-shadow .2s ease-out,transform .2s ease-out;
  }
  .content-card:hover{ box-shadow:var(--shadow-hover); transform:translateY(-2px); }
  .content-card .thumb{ position:relative; aspect-ratio:16/9; overflow:hidden; }
  .content-card .thumb img{ width:100%; height:100%; object-fit:cover; transition:transform .35s ease-out; }
  .content-card:hover .thumb img{ transform:scale(1.03); }
  .content-card .thumb .badge{ position:absolute; left:12px; top:12px; background:rgba(255,255,255,.94); color:var(--brand-700); }
  .content-card .cbody{ padding:18px 18px 20px; display:flex; flex-direction:column; gap:8px; flex:1; }
  .content-card h3{ font-size:18px; font-weight:600; line-height:1.4; color:var(--ink); }
  .content-card p{ font-size:14px; color:var(--ink-soft); line-height:1.75; }
  .content-card.big{ grid-row:span 2; }
  .content-card.big .thumb{ aspect-ratio:16/10; }
  .content-card.big h3{ font-size:22px; }

  /* ============ 资讯列表 CMS ============ */
  .news-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:22px; margin-top:36px; }
  .news-card{
    background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-md);
    overflow:hidden; box-shadow:var(--shadow-card); display:flex; flex-direction:column;
    transition:box-shadow .2s ease-out,transform .2s ease-out;
  }
  .news-card:hover{ box-shadow:var(--shadow-hover); transform:translateY(-2px); }
  .news-card .nthumb{ aspect-ratio:16/9; overflow:hidden; background:var(--brand-50); }
  .news-card .nthumb img{ width:100%; height:100%; object-fit:cover; transition:transform .35s ease-out; }
  .news-card:hover .nthumb img{ transform:scale(1.03); }
  .news-card .nbody{ padding:16px; display:flex; flex-direction:column; gap:8px; flex:1; }
  .news-card h3{ font-size:16.5px; font-weight:600; line-height:1.45; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
  .news-card p{ font-size:13.5px; color:var(--ink-soft); line-height:1.7; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
  .news-meta{ display:flex; align-items:center; justify-content:space-between; gap:10px; margin-top:auto; padding-top:10px; font-size:12.5px; color:var(--ink-soft); }
  .empty-state{
    grid-column:1/-1; display:flex; flex-direction:column; align-items:center; justify-content:center;
    gap:14px; padding:54px 24px; background:var(--surface); border:1px dashed var(--line);
    border-radius:var(--radius-md); text-align:center;
  }
  .empty-state .ico{
    width:56px; height:56px; border-radius:50%; border:2px solid var(--brand-200);
    display:flex; align-items:center; justify-content:center; color:var(--brand-500);
  }
  .empty-state p{ font-size:14.5px; color:var(--ink-soft); }

  /* ============ 证据/数据块 ============ */
  .evidence{ display:grid; grid-template-columns:1.1fr 1fr; gap:28px; margin-top:36px; align-items:stretch; }
  .evidence-photo{ border-radius:var(--radius-lg); overflow:hidden; border:1px solid var(--line); box-shadow:var(--shadow-card); }
  .evidence-photo img{ width:100%; height:100%; object-fit:cover; min-height:320px; }
  .metric-grid{ display:grid; grid-template-columns:1fr 1fr; gap:18px; }
  .metric{
    background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-md);
    padding:20px; box-shadow:var(--shadow-card);
  }
  .metric .mv{ font-size:30px; font-weight:700; color:var(--brand-900); line-height:1.1; }
  .metric .mk{ margin-top:6px; font-size:13.5px; color:var(--ink-soft); }

  /* ============ FAQ ============ */
  .faq-wrap{ max-width:820px; margin:36px auto 0; }
  .faq-item{ border-bottom:1px solid var(--line); }
  .faq-item summary{
    list-style:none; cursor:pointer; display:flex; align-items:center; justify-content:space-between;
    gap:16px; padding:20px 2px; font-size:17px; font-weight:600; color:var(--ink);
  }
  .faq-item summary::-webkit-details-marker{ display:none; }
  .faq-item summary .chev{ width:20px; height:20px; flex:0 0 auto; color:var(--brand-500); transition:transform .2s ease-out; }
  .faq-item[open] summary .chev{ transform:rotate(180deg); }
  .faq-item .faq-body{ padding:0 2px 22px; font-size:15.5px; line-height:1.8; color:var(--ink-soft); }

  /* ============ CTA ============ */
  .cta-card{
    margin-top:96px; position:relative; overflow:hidden; border-radius:var(--radius-lg);
    background:var(--grad-brand); color:#fff; padding:48px; display:grid;
    grid-template-columns:1.1fr .9fr; gap:40px; align-items:center;
  }
  .cta-card::after{
    content:""; position:absolute; right:-60px; bottom:-90px; width:320px; height:320px;
    border-radius:50%; border:1px solid rgba(255,255,255,.14); opacity:.6;
  }
  .cta-card h2{ font-size:clamp(22px,2.4vw,30px); font-weight:600; line-height:1.32; }
  .cta-card p{ margin-top:12px; font-size:15px; color:rgba(255,255,255,.85); max-width:420px; }
  .cta-form{ position:relative; z-index:2; background:rgba(255,255,255,.1); border:1px solid rgba(255,255,255,.26); border-radius:var(--radius-md); padding:22px; }
  .field{ margin-bottom:14px; }
  .field label{ display:block; font-size:13px; margin-bottom:6px; color:rgba(255,255,255,.9); }
  .field input, .field select{
    width:100%; height:48px; border-radius:12px; border:1px solid rgba(255,255,255,.35);
    background:rgba(255,255,255,.94); color:var(--ink); padding:0 14px; font-size:14.5px;
    transition:box-shadow .18s ease-out,border-color .18s ease-out;
  }
  .field input:focus, .field select:focus{
    outline:none; border-color:var(--brand-500); box-shadow:0 0 0 2px rgba(30,140,119,.45);
  }
  .field .err{ display:none; margin-top:6px; font-size:12px; color:#FFD9CE; }
  .field.invalid input{ border-color:#FFB7A3; }
  .field.invalid .err{ display:block; }
  .cta-form .btn{ width:100%; }
  .form-tip{ margin-top:10px; font-size:12px; color:rgba(255,255,255,.72); line-height:1.6; }

  /* ============ 页脚 ============ */
  .site-footer{ margin-top:96px; background:#0B322B; color:rgba(255,255,255,.78); }
  .footer-grid{
    display:grid; grid-template-columns:1.5fr 1fr 1fr 1.2fr; gap:36px;
    padding:56px 0 36px;
  }
  .site-footer .brand-name{ color:#fff; }
  .site-footer .brand-sub{ color:rgba(255,255,255,.6); }
  .footer-about{ margin-top:14px; font-size:13.5px; line-height:1.8; color:rgba(255,255,255,.66); max-width:320px; }
  .footer-col h4{ font-size:14px; font-weight:600; color:#fff; margin-bottom:14px; letter-spacing:.02em; }
  .footer-col ul{ list-style:none; padding:0; display:flex; flex-direction:column; gap:10px; }
  .footer-col a{ font-size:13.5px; color:rgba(255,255,255,.72); }
  .footer-col a:hover{ color:#fff; text-decoration:underline; text-underline-offset:4px; }
  .footer-contact p{ font-size:13.5px; line-height:1.9; color:rgba(255,255,255,.72); }
  .footer-bottom{
    border-top:1px solid rgba(255,255,255,.14); padding:18px 0 26px;
    display:flex; align-items:center; justify-content:space-between; gap:16px; flex-wrap:wrap;
    font-size:12.5px; color:rgba(255,255,255,.55);
  }

  /* ============ 响应式 ============ */
  @media (max-width:1279px){
    .content-grid{ grid-template-columns:1fr 1fr; }
    .content-card.big{ grid-row:auto; grid-column:1/-1; }
    .news-grid{ grid-template-columns:1fr 1fr; }
  }
  @media (max-width:1023px){
    .sidebar{ display:none; }
    .topbar{ display:flex; }
    .main-wrap{ margin-left:0; padding-top:60px; }
    .container-page{ padding:0 24px; }
    .hero{ min-height:480px; }
    .hero-inner{ padding:64px 0 56px; }
    .section{ padding:56px 0 0; }
    .tier-grid{ grid-template-columns:1fr; gap:18px; }
    .tier-card.mid{ transform:none; padding:26px 24px; }
    .tier-card.mid:hover{ transform:translateY(-2px); }
    .evidence{ grid-template-columns:1fr; }
    .cta-card{ grid-template-columns:1fr; padding:34px 26px; gap:26px; margin-top:56px; }
    .site-footer{ margin-top:56px; }
    .footer-grid{ grid-template-columns:1fr 1fr; gap:28px; padding:40px 0 28px; }
  }
  @media (max-width:767px){
    body{ font-size:15.5px; }
    .container-page{ padding:0 16px; }
    .hero{ min-height:420px; }
    .hero h1{ font-size:clamp(26px,7vw,32px); }
    .hero-lead{ font-size:15px; }
    .hero-actions .btn{ width:100%; }
    .stat-strip{ gap:8px; }
    .stat-pill{ height:32px; padding:0 12px; font-size:12px; }
    .compare-card{ display:none; }
    .compare-mobile{ display:block; }
    .content-grid{ grid-template-columns:1fr; }
    .news-grid{ grid-template-columns:1fr; }
    .metric-grid{ grid-template-columns:1fr; }
    .cta-form .btn{ width:100%; }
    .footer-grid{ grid-template-columns:1fr; gap:24px; }
    .footer-bottom{ flex-direction:column; align-items:flex-start; }
  }
  @media (prefers-reduced-motion:reduce){
    *{ animation:none !important; transition:none !important; scroll-behavior:auto !important; }
  }

/* roulang page: article */
:root{
  --brand-900:#0E4239;
  --brand-700:#14655A;
  --brand-500:#1E8C77;
  --brand-200:#A8D6C8;
  --brand-50:#EAF4F0;
  --accent-600:#B4602F;
  --accent-100:#F6E7DA;
  --ink:#17211D;
  --ink-soft:#5A6761;
  --line:#E2DCD0;
  --bg:#F6F3EC;
  --surface:#FFFFFF;
  --danger:#B4472F;
  --grad-brand:linear-gradient(135deg,#0E4239 0%,#1E8C77 58%,#7FBFAC 100%);
  --radius-lg:24px;
  --radius-md:16px;
  --radius-sm:10px;
  --radius-btn:12px;
  --shadow-sm:0 8px 24px rgba(14,66,57,.07);
  --shadow-md:0 16px 36px rgba(14,66,57,.13);
  --font-sans:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body.site{
  margin:0;
  font-family:var(--font-sans);
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.site a{color:inherit;text-decoration:none;transition:color .18s ease}
body.site a:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:4px}
body.site img{max-width:100%;display:block;border:0}
body.site button{font-family:inherit;cursor:pointer}
body.site input,body.site textarea{font-family:inherit}
:focus-visible{outline:2px solid var(--accent-600);outline-offset:2px;border-radius:6px}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-thumb{background:#C8D6D0;border-radius:8px}
::-webkit-scrollbar-thumb:hover{background:var(--brand-200)}
::-webkit-scrollbar-track{background:transparent}

.skip-link{position:absolute;left:-9999px;top:0;z-index:99;background:var(--brand-900);color:#fff;padding:10px 16px;border-radius:0 0 12px 0;font-size:14px}
.skip-link:focus{left:0;color:#fff}

.container-page{width:100%;max-width:1200px;margin:0 auto;padding:0 40px}
@media (max-width:1023px){.container-page{padding:0 24px}}
@media (max-width:640px){.container-page{padding:0 16px}}

/* ============ 左侧 App Shell ============ */
.sidebar{
  position:fixed;top:0;left:0;width:240px;height:100vh;
  background:var(--surface);border-right:1px solid var(--line);
  padding:22px 20px 24px;display:flex;flex-direction:column;gap:4px;
  overflow-y:auto;z-index:40;
}
.logo{display:flex;align-items:center;gap:10px;padding:2px 4px 18px}
.logo-mark{width:34px;height:34px;flex:none}
.brand-name{display:block;font-size:16px;font-weight:600;color:var(--brand-900);line-height:1.3;letter-spacing:.01em}
.brand-sub{display:block;font-size:11px;color:var(--ink-soft);letter-spacing:.08em;margin-top:3px}
.nav-group{display:flex;flex-direction:column;gap:4px}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  height:44px;padding:0 12px;border-radius:12px;
  font-size:14px;color:var(--ink-soft);
  transition:background .2s ease,color .2s ease;
}
.nav-item svg{width:20px;height:20px;flex:none}
.nav-item:hover{background:var(--brand-50);color:var(--brand-700);text-decoration:none}
.nav-item.active{background:var(--brand-50);color:var(--brand-700);font-weight:600}
.nav-item.active::before{
  content:"";position:absolute;left:-9px;top:11px;bottom:11px;width:3px;
  border-radius:3px;background:var(--accent-600);
}
.side-divider{height:1px;background:var(--line);margin:18px 0}
.side-metrics{
  border:1px solid var(--line);border-radius:16px;background:var(--brand-50);
  padding:13px 14px;display:flex;flex-direction:column;gap:9px;
}
.metric-row{display:flex;align-items:baseline;justify-content:space-between;gap:8px;font-size:12.5px;color:var(--ink-soft)}
.metric-row strong{font-family:var(--font-mono);font-size:14px;color:var(--brand-900);font-variant-numeric:tabular-nums;font-weight:600}
.side-note{font-size:11.5px;line-height:1.6;color:var(--ink-soft);margin:10px 2px 0}

.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border:0;border-radius:var(--radius-btn);
  background:var(--grad-brand);color:#fff;font-size:14.5px;font-weight:600;
  box-shadow:0 10px 22px rgba(14,66,57,.18);
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 16px 30px rgba(14,66,57,.26);color:#fff;text-decoration:none}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(14,66,57,.2)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  background:#fff;border:1px solid var(--brand-700);color:var(--brand-700);
  font-size:14.5px;font-weight:600;transition:background .2s ease,transform .2s ease;
}
.btn-ghost:hover{background:var(--brand-50);color:var(--brand-700);text-decoration:none;transform:translateY(-1px)}
.side-cta{margin-top:auto;width:100%;margin-top:auto}
.side-cta-wrap{margin-top:auto;padding-top:18px}

/* ============ 移动端顶栏与抽屉 ============ */
.mobile-topbar{display:none}
.hamburger{
  width:44px;height:44px;display:flex;align-items:center;justify-content:center;
  background:#fff;color:var(--brand-900);border:1px solid var(--line);border-radius:12px;
  transition:background .2s ease,border-color .2s ease;
}
.hamburger:hover{background:var(--brand-50);border-color:var(--brand-200)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(23,33,29,.5);z-index:60;
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.drawer-mask.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;width:82vw;max-width:320px;height:100vh;z-index:70;
  background:var(--brand-900);color:#fff;padding:18px 18px 28px;
  display:flex;flex-direction:column;gap:4px;overflow-y:auto;
  transform:translateX(100%);transition:transform .28s cubic-bezier(.3,.8,.3,1);
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.drawer-close{
  width:44px;height:44px;display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);
  border-radius:12px;color:#fff;transition:background .2s ease;
}
.drawer-close:hover{background:rgba(255,255,255,.18)}
.drawer .brand-name{color:#fff}
.drawer .brand-sub{color:var(--brand-200)}
.drawer .nav-item{color:#CFE2DB;height:46px}
.drawer .nav-item:hover,.drawer .nav-item:focus{background:rgba(255,255,255,.1);color:#fff;text-decoration:none}
.drawer .nav-item.active{background:rgba(255,255,255,.14);color:#fff}
.drawer .nav-item.active::before{background:var(--brand-200);left:-6px}
.drawer-foot{margin-top:auto;padding-top:20px}
.drawer-foot .btn-primary{width:100%;background:#fff;color:var(--brand-900);box-shadow:none}
.drawer-foot .btn-primary:hover{filter:none;background:var(--brand-50);color:var(--brand-900)}
.drawer-tip{font-size:11.5px;line-height:1.7;color:rgba(255,255,255,.62);margin:14px 2px 0}

/* ============ 主区域 ============ */
.main-area{margin-left:240px;min-height:100vh;display:flex;flex-direction:column}
@media (max-width:1023px){
  .sidebar{display:none}
  .mobile-topbar{
    position:fixed;top:0;left:0;right:0;height:60px;background:#fff;
    border-bottom:1px solid var(--line);display:flex;align-items:center;
    justify-content:space-between;padding:0 16px;z-index:50;
  }
  .mobile-topbar .logo{padding:0;gap:8px}
  .mobile-topbar .logo-mark{width:28px;height:28px}
  .mobile-topbar .brand-name{font-size:14px;line-height:1.2}
  .mobile-topbar .brand-sub{display:none}
  .main-area{margin-left:0;padding-top:60px}
}

/* ============ 面包屑与文章头 ============ */
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:12.5px;color:var(--ink-soft);padding:30px 0 6px;
}
.breadcrumb .sep{color:#C3CBC6}
.breadcrumb .current{
  color:var(--ink);max-width:320px;overflow:hidden;
  text-overflow:ellipsis;white-space:nowrap;
}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 10px;
  border-radius:999px;font-size:12.5px;line-height:1;font-weight:500;
}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;opacity:.8}
.badge-brand{background:var(--brand-50);color:var(--brand-700);border:1px solid var(--brand-200)}
.badge-accent{background:var(--accent-100);color:#8B4A22;border:1px solid #E8CAB3}

.article-grid{
  display:grid;grid-template-columns:minmax(0,1fr);
  gap:44px;padding:14px 0 56px;align-items:start;
}
@media (min-width:1280px){
  .article-grid{grid-template-columns:minmax(0,760px) 260px;justify-content:space-between;gap:56px}
}
.article-main{min-width:0}
.article-header h1{
  font-size:clamp(28px,4vw,40px);line-height:1.24;font-weight:600;
  letter-spacing:-.01em;color:var(--brand-900);margin:14px 0 16px;
  overflow-wrap:break-word;word-break:break-word;
}
.meta-row{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;
  font-size:13px;color:var(--ink-soft);font-variant-numeric:tabular-nums;
}
.meta-row .num,.meta-row time{font-family:var(--font-mono)}
.meta-row .dot{color:#BFC9C4}
.article-lead{
  margin-top:22px;padding:16px 18px;border-left:3px solid var(--accent-600);
  background:var(--brand-50);border-radius:0 12px 12px 0;
  font-size:15px;line-height:1.85;color:var(--ink-soft);
}
.article-cover{
  margin:28px 0 10px;border-radius:16px;overflow:hidden;
  border:1px solid var(--line);background:var(--brand-50);
}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* ============ 正文排版 ============ */
.article-body{max-width:760px;padding:8px 0 0;overflow-wrap:break-word;word-break:break-word}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em;font-size:17px;line-height:1.9;color:var(--ink)}
.article-body h2{
  position:relative;padding-left:14px;margin:40px 0 16px;
  font-size:clamp(21px,2.3vw,27px);line-height:1.36;font-weight:600;color:var(--brand-900);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:8px;width:3px;height:18px;
  border-radius:2px;background:var(--accent-600);
}
.article-body h3{margin:28px 0 12px;font-size:19px;line-height:1.45;font-weight:600;color:var(--brand-900)}
.article-body h4{margin:22px 0 10px;font-size:17px;font-weight:600;color:var(--ink)}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:1.4em}
.article-body li{margin:.45em 0;font-size:16.5px;line-height:1.85;color:var(--ink)}
.article-body li::marker{color:var(--brand-500)}
.article-body blockquote{
  margin:1.6em 0;padding:16px 20px;border-left:4px solid var(--brand-500);
  background:var(--brand-50);border-radius:0 12px 12px 0;color:var(--ink-soft);
}
.article-body blockquote p{margin:0;font-size:16px;color:var(--ink-soft)}
.article-body a{color:var(--brand-700);text-decoration:underline;text-underline-offset:4px}
.article-body a:hover{color:var(--brand-900)}
.article-body img{border-radius:16px;margin:1.6em 0;height:auto}
.article-body figure{margin:1.8em 0}
.article-body figcaption{font-size:13px;color:var(--ink-soft);text-align:center;margin-top:10px}
.article-body strong{font-weight:600;color:var(--brand-900)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}
.table-scroll{
  overflow-x:auto;margin:1.6em 0;border:1px solid var(--line);
  border-radius:12px;background:#fff;-webkit-overflow-scrolling:touch;
}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;min-width:520px}
.article-body thead th{
  background:var(--brand-50);color:var(--brand-900);font-weight:600;
  text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);white-space:nowrap;
}
.article-body tbody td{padding:12px 14px;border-bottom:1px solid var(--line);color:var(--ink);line-height:1.7}
.article-body tbody tr:nth-child(even){background:#FBF9F4}
.article-body tbody tr:last-child td{border-bottom:0}

/* 空状态 */
.empty-state{
  border:1px dashed var(--line);border-radius:20px;background:#fff;
  padding:48px 24px;text-align:center;box-shadow:var(--shadow-sm);
}
.empty-icon{
  width:56px;height:56px;margin:0 auto 16px;border-radius:50%;
  border:1px solid var(--brand-200);background:var(--brand-50);
  display:flex;align-items:center;justify-content:center;color:var(--brand-700);
}
.empty-state h2{font-size:20px;font-weight:600;color:var(--brand-900);margin:0 0 8px;padding:0}
.empty-state h2::before{display:none}
.empty-state p{font-size:14.5px;color:var(--ink-soft);margin:0 0 20px}

/* 合规说明 */
.compliance-note{
  margin-top:44px;padding:16px 18px;border:1px dashed var(--line);
  border-radius:12px;background:rgba(255,255,255,.7);
  font-size:12.5px;line-height:1.8;color:var(--ink-soft);
}

/* ============ 目录 ============ */
.toc{display:none}
@media (min-width:1280px){.toc{display:block}}
.toc-card{
  position:sticky;top:32px;background:#fff;border:1px solid var(--line);
  border-radius:16px;padding:16px 18px;box-shadow:var(--shadow-sm);
}
.toc-title{
  font-size:12.5px;font-weight:600;letter-spacing:.06em;
  color:var(--brand-900);margin:0 0 12px;
}
.toc-list{
  list-style:none;margin:0;padding:0;display:flex;flex-direction:column;
  gap:2px;max-height:58vh;overflow-y:auto;
}
.toc-list a{
  display:block;font-size:13px;line-height:1.5;color:var(--ink-soft);
  padding:6px 0 6px 12px;border-left:2px solid transparent;transition:all .18s ease;
}
.toc-list a:hover{color:var(--brand-700);text-decoration:none}
.toc-list a.active{color:var(--brand-700);font-weight:600;border-left-color:var(--brand-700)}
.toc-empty{font-size:12.5px;line-height:1.7;color:var(--ink-soft);margin:0}

/* ============ CTA 条 ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:32px;
  background:var(--grad-brand);color:#fff;padding:38px 42px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  margin:8px 0 60px;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;bottom:-90px;width:240px;height:240px;
  border:1px solid rgba(255,255,255,.18);border-radius:50%;
}
.cta-band::before{
  content:"";position:absolute;right:60px;top:-70px;width:150px;height:150px;
  border:1px solid rgba(255,255,255,.14);border-radius:50%;
}
.cta-band h2{position:relative;font-size:clamp(20px,2.6vw,28px);font-weight:600;margin:0 0 8px;color:#fff;line-height:1.35}
.cta-band p{position:relative;margin:0;font-size:14.5px;line-height:1.7;color:rgba(255,255,255,.88);max-width:560px}
.cta-band .btn-light{
  position:relative;z-index:1;display:inline-flex;align-items:center;justify-content:center;
  height:46px;padding:0 24px;border:0;border-radius:12px;background:#fff;
  color:var(--brand-900);font-size:14.5px;font-weight:600;white-space:nowrap;
  transition:background .2s ease,transform .2s ease;
}
.cta-band .btn-light:hover{background:var(--brand-50);color:var(--brand-900);text-decoration:none;transform:translateY(-1px)}

/* ============ 相关推荐 ============ */
.section-title{
  position:relative;padding-left:14px;font-size:clamp(20px,2.4vw,26px);
  line-height:1.4;font-weight:600;color:var(--brand-900);margin:0 0 6px;
}
.section-title::before{
  content:"";position:absolute;left:0;top:.32em;width:3px;height:18px;
  border-radius:2px;background:var(--accent-600);
}
.section-desc{font-size:14px;color:var(--ink-soft);margin:0}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:24px}
@media (max-width:900px){.related-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){.related-grid{grid-template-columns:1fr}}
.card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:16px;overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);text-decoration:none}
.card-media{aspect-ratio:16/9;overflow:hidden;background:var(--brand-50)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:16px;display:flex;flex-direction:column;gap:8px}
.card-body h3{
  margin:0;font-size:16px;line-height:1.45;font-weight:600;color:var(--brand-900);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-body p{
  margin:0;font-size:13.5px;line-height:1.7;color:var(--ink-soft);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{font-size:12px;color:var(--ink-soft);font-family:var(--font-mono);letter-spacing:.02em}
.back-link{
  display:inline-flex;align-items:center;gap:6px;margin:32px 0 0;
  font-size:14px;color:var(--brand-700);font-weight:500;
}
.back-link svg{transition:transform .2s ease}
.back-link:hover svg{transform:translateX(-4px)}

/* ============ 页脚 ============ */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:56px 0 0;margin-top:auto}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px}
@media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media (max-width:560px){.footer-grid{grid-template-columns:1fr;gap:28px}}
.footer-col h4{font-size:13px;font-weight:600;color:var(--brand-900);letter-spacing:.05em;margin:0 0 14px}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-col ul a{font-size:14px;color:var(--ink-soft)}
.footer-col ul a:hover{color:var(--brand-700)}
.footer-about{font-size:13.5px;line-height:1.8;color:var(--ink-soft);margin:0;max-width:320px}
.footer-contact p{font-size:13.5px;line-height:1.8;color:var(--ink-soft);margin:0 0 8px}
.footer-contact p:last-child{margin-bottom:0}
.site-footer .logo{padding:0 0 16px}
.footer-bottom{
  border-top:1px solid var(--line);margin-top:44px;padding:18px 0;
  display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;
  font-size:12.5px;color:var(--ink-soft);
}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:24px;bottom:24px;width:56px;height:56px;border-radius:50%;
  background:var(--brand-900);color:#fff;border:0;display:flex;align-items:center;
  justify-content:center;box-shadow:0 12px 28px rgba(14,66,57,.28);z-index:45;
  transition:background .2s ease,transform .2s ease,opacity .2s ease;
}
.to-top:hover{background:var(--brand-700);transform:translateY(-2px)}
@media (max-width:640px){.to-top{right:16px;bottom:16px;width:48px;height:48px}}

@media (max-width:640px){
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 22px;border-radius:24px;gap:20px}
  .cta-band .btn-light{width:100%}
  .article-lead{font-size:14.5px}
  .article-body p{font-size:16.5px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
    --brand-900:#0E4239;
    --brand-700:#14655A;
    --brand-500:#1E8C77;
    --brand-200:#A8D6C8;
    --brand-50:#EAF4F0;
    --accent-600:#B4602F;
    --accent-100:#F6E7DA;
    --ink:#17211D;
    --ink-soft:#5A6761;
    --line:#E2DCD0;
    --bg:#F6F3EC;
    --surface:#FFFFFF;
    --danger:#B4472F;
    --grad-brand:linear-gradient(135deg,#0E4239 0%,#1E8C77 58%,#7FBFAC 100%);
    --shadow-sm:0 8px 24px rgba(14,66,57,.07);
    --shadow-lg:0 16px 36px rgba(14,66,57,.13);
    --r-lg:24px;
    --r-md:16px;
    --r-sm:10px;
    --r-btn:12px;
    --font-sans:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
    --font-mono:ui-monospace,"SF Mono","JetBrains Mono",monospace;
  }

  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:var(--font-sans);
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;border:0}
  a{color:inherit;text-decoration:none;transition:color .18s ease}
  a:hover{color:var(--brand-700);text-underline-offset:4px}
  button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:0;cursor:pointer}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0}
  ul,ol{padding:0;list-style:none}
  :focus-visible{outline:2px solid var(--accent-600);outline-offset:2px;border-radius:6px}
  ::selection{background:var(--brand-200);color:var(--brand-900)}
  ::-webkit-scrollbar{width:10px;height:10px}
  ::-webkit-scrollbar-thumb{background:var(--brand-200);border-radius:999px}
  ::-webkit-scrollbar-track{background:transparent}

  .container-page{max-width:1200px;margin:0 auto;padding:0 40px;width:100%}
  .mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}

  /* ============ 左侧导航 ============ */
  .sidebar{
    position:fixed;top:0;left:0;bottom:0;width:240px;
    background:var(--surface);border-right:1px solid var(--line);
    display:flex;flex-direction:column;gap:16px;
    padding:22px 14px 20px;z-index:50;overflow-y:auto;
  }
  .logo{display:flex;align-items:center;gap:10px;padding:6px 8px;border-radius:12px}
  .logo:hover{color:inherit}
  .logo-mark{width:38px;height:38px;flex:none}
  .brand-text{display:flex;flex-direction:column;min-width:0}
  .brand-name{font-size:13.5px;font-weight:700;line-height:1.35;letter-spacing:.01em;color:var(--ink);word-break:break-word}
  .brand-sub{font-size:12px;line-height:1.4;color:var(--ink-soft);margin-top:2px}
  .nav-group{display:flex;flex-direction:column;gap:4px}
  .nav-item{
    position:relative;display:flex;align-items:center;gap:10px;
    min-height:44px;padding:0 12px;border-radius:12px;
    font-size:14px;color:var(--ink);line-height:1.3;
    transition:background-color .18s ease,color .18s ease;
  }
  .nav-item svg{width:20px;height:20px;flex:none;color:var(--brand-500)}
  .nav-item:hover{background:var(--brand-50);color:var(--brand-700)}
  .nav-item.active{background:var(--brand-50);color:var(--brand-700);font-weight:600}
  .nav-item.active::before{
    content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
    background:var(--accent-600);border-radius:2px;
  }
  .sidebar-divider{height:1px;background:var(--line);margin:6px 8px}
  .side-stat{
    background:var(--brand-50);border:1px solid rgba(30,140,119,.2);
    border-radius:16px;padding:14px 16px;
  }
  .side-stat-num{font-family:var(--font-mono);font-size:26px;line-height:1.1;font-variant-numeric:tabular-nums;color:var(--brand-900);display:block}
  .side-stat-label{font-size:13px;color:var(--brand-700);font-weight:600;margin-top:4px;display:block}
  .side-stat-meta{font-size:12px;color:var(--ink-soft);margin-top:6px;display:block}
  .side-cta{margin-top:auto;width:100%;font-size:14px}

  /* ============ 移动顶栏 & 抽屉 ============ */
  .mobile-topbar{display:none}
  .drawer-overlay{
    position:fixed;inset:0;background:rgba(23,33,29,.5);
    opacity:0;visibility:hidden;transition:opacity .22s ease,visibility .22s ease;z-index:70;
  }
  .drawer{
    position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:320px;
    background:var(--brand-900);color:#fff;z-index:80;
    transform:translateX(100%);transition:transform .24s ease;
    display:flex;flex-direction:column;gap:14px;padding:18px;overflow-y:auto;
  }
  .drawer-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
  .drawer-close{
    width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
    border-radius:12px;border:1px solid rgba(255,255,255,.28);color:#fff;flex:none;
  }
  .drawer-close:hover{background:rgba(255,255,255,.12);color:#fff}
  .drawer .brand-name{color:#fff}
  .drawer .brand-sub{color:var(--brand-200)}
  .drawer .logo-mark{width:34px;height:34px}
  .drawer .nav-group{gap:4px;margin-top:6px}
  .drawer .nav-item{color:#fff}
  .drawer .nav-item svg{color:var(--brand-200)}
  .drawer .nav-item:hover{background:rgba(255,255,255,.12);color:#fff}
  .drawer .nav-item.active{background:rgba(255,255,255,.16);color:#fff}
  .drawer .nav-item.active::before{background:var(--accent-600)}
  .drawer-note{font-size:12.5px;line-height:1.8;color:rgba(255,255,255,.7);border-top:1px solid rgba(255,255,255,.16);padding-top:14px;margin-top:auto}
  body.drawer-open{overflow:hidden}
  body.drawer-open .drawer{transform:translateX(0)}
  body.drawer-open .drawer-overlay{opacity:1;visibility:visible}

  /* ============ 主内容区 ============ */
  .main-area{margin-left:240px;min-height:100vh;display:flex;flex-direction:column}

  /* ============ 通用元件 ============ */
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    height:26px;padding:0 10px;border-radius:999px;
    font-size:12.5px;line-height:1;white-space:nowrap;
  }
  .badge .dot{width:6px;height:6px;border-radius:50%;background:currentColor;flex:none}
  .badge-brand{background:var(--brand-50);color:var(--brand-700);border:1px solid rgba(30,140,119,.22)}
  .badge-accent{background:var(--accent-100);color:var(--accent-600);border:1px solid rgba(180,96,47,.22)}
  .badge-line{background:transparent;color:var(--ink-soft);border:1px solid var(--line)}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:48px;padding:0 22px;border-radius:var(--r-btn);
    font-size:15px;font-weight:600;line-height:1;
    transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,filter .18s ease,color .18s ease;
  }
  .btn svg{width:16px;height:16px;flex:none}
  .btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 10px 24px rgba(14,66,57,.2)}
  .btn-primary:hover{color:#fff;filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 16px 32px rgba(14,66,57,.26)}
  .btn-primary:active{transform:translateY(0)}
  .btn-ghost{background:var(--surface);color:var(--brand-700);border:1px solid var(--brand-700)}
  .btn-ghost:hover{background:var(--brand-50);color:var(--brand-700);transform:translateY(-1px)}
  .btn-on-grad{background:#fff;color:var(--brand-900);box-shadow:0 10px 24px rgba(0,0,0,.12)}
  .btn-on-grad:hover{background:var(--brand-50);color:var(--brand-900);transform:translateY(-1px)}
  .btn-outline-white{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.6)}
  .btn-outline-white:hover{background:rgba(255,255,255,.14);color:#fff}

  .link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-700)}
  .link-arrow svg{width:15px;height:15px;transition:transform .18s ease}
  .link-arrow:hover svg{transform:translateX(4px)}

  .section{padding:96px 0}
  .section-tight{padding:56px 0}
  .sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:38px}
  .sec-head p{color:var(--ink-soft);font-size:14px;max-width:520px}
  .h2{
    position:relative;padding-left:16px;
    font-size:clamp(23px,2.6vw,32px);line-height:1.3;font-weight:600;letter-spacing:-.01em;
  }
  .h2::before{
    content:"";position:absolute;left:0;top:.42em;width:3px;height:18px;
    background:var(--accent-600);border-radius:2px;
  }
  .h3{font-size:19px;line-height:1.4;font-weight:600;letter-spacing:-.005em}

  /* ============ 窄幅 Hero ============ */
  .hero-narrow{position:relative;overflow:hidden;background:var(--bg);border-bottom:1px solid var(--line)}
  .hero-narrow::after{
    content:"";position:absolute;top:0;right:0;bottom:0;width:47%;
    background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    opacity:.42;
    -webkit-mask-image:linear-gradient(90deg,transparent 0%,#000 55%);
    mask-image:linear-gradient(90deg,transparent 0%,#000 55%);
    pointer-events:none;
  }
  .hero-narrow-inner{position:relative;z-index:2;padding:60px 0 54px;max-width:700px}
  .crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12.5px;color:var(--ink-soft);margin-bottom:20px}
  .crumbs a:hover{color:var(--brand-700);text-decoration:underline}
  .crumbs .sep{color:var(--line)}
  .crumbs .cur{color:var(--ink)}
  .hero-narrow h1{font-size:clamp(28px,3.4vw,42px);line-height:1.2;font-weight:600;letter-spacing:-.015em;margin-bottom:16px}
  .hero-lead{font-size:16px;line-height:1.85;color:var(--ink-soft);max-width:600px}
  .hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}

  /* ============ 维度清单 ============ */
  .dim-layout{display:block}
  .dim-toc{
    display:flex;gap:8px;overflow-x:auto;padding-bottom:12px;margin-bottom:26px;
    -webkit-overflow-scrolling:touch;scrollbar-width:thin;
  }
  .dim-toc a{
    flex:0 0 auto;display:inline-flex;align-items:center;height:36px;padding:0 14px;
    border-radius:999px;border:1px solid var(--line);background:var(--surface);
    font-size:13px;color:var(--ink-soft);white-space:nowrap;
    transition:background-color .18s ease,color .18s ease,border-color .18s ease;
  }
  .dim-toc a:hover{border-color:var(--brand-500);color:var(--brand-700);background:var(--brand-50)}
  .dim-toc .toc-label{display:none}

  .dim-list{border-top:1px solid var(--line)}
  .dim-item{
    display:grid;grid-template-columns:64px minmax(0,1fr);gap:22px;
    padding:26px 14px;border-bottom:1px solid var(--line);border-radius:12px;
    transition:background-color .2s ease;
  }
  .dim-item:hover{background:rgba(234,244,240,.7)}
  .dim-num{
    font-family:var(--font-mono);font-size:34px;line-height:1;font-weight:600;
    color:var(--accent-600);font-variant-numeric:tabular-nums;letter-spacing:-.03em;
    padding-top:4px;
  }
  .dim-title{font-size:19px;line-height:1.4;font-weight:600;margin-bottom:8px}
  .dim-desc{font-size:15.5px;line-height:1.85;color:var(--ink-soft);max-width:680px}
  .dim-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;margin-top:14px}
  .dim-cycle{font-size:12.5px;color:var(--ink-soft);letter-spacing:.02em}

  /* ============ 使用方式 ============ */
  .scene-list{display:grid;gap:18px}
  .scene{
    background:var(--surface);border:1px solid var(--line);border-top:3px solid var(--brand-500);
    border-radius:var(--r-md);padding:24px;box-shadow:var(--shadow-sm);
    transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
  }
  .scene:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}
  .scene-idx{font-family:var(--font-mono);font-size:12.5px;letter-spacing:.14em;color:var(--accent-600);display:block;margin-bottom:10px}
  .scene h3{font-size:17px;font-weight:600;line-height:1.4;margin-bottom:8px}
  .scene p{font-size:14.5px;line-height:1.8;color:var(--ink-soft)}

  /* ============ 深色口径面板 ============ */
  .panel-deep{
    position:relative;overflow:hidden;border-radius:var(--r-lg);
    background:var(--grad-brand);color:#fff;padding:44px;
  }
  .panel-deep::after{
    content:"";position:absolute;right:-70px;bottom:-90px;width:300px;height:300px;border-radius:50%;
    border:1px solid rgba(255,255,255,.2);
    box-shadow:inset 0 0 0 32px rgba(255,255,255,.05);
    pointer-events:none;
  }
  .panel-deep h2{font-size:clamp(22px,2.4vw,29px);line-height:1.32;font-weight:600;margin-bottom:14px;position:relative;z-index:2}
  .panel-deep p{font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.86);max-width:660px;position:relative;z-index:2}
  .stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:32px;position:relative;z-index:2}
  .stat{
    background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.2);
    border-radius:14px;padding:16px 18px;
  }
  .stat-num{display:block;font-family:var(--font-mono);font-size:27px;line-height:1.15;font-variant-numeric:tabular-nums}
  .stat-label{display:block;font-size:13px;color:rgba(255,255,255,.84);margin-top:4px}

  /* ============ FAQ ============ */
  .faq{
    max-width:820px;margin:0 auto;background:var(--surface);
    border:1px solid var(--line);border-radius:var(--r-lg);
    padding:6px 28px;box-shadow:var(--shadow-sm);
  }
  .faq-item{border-bottom:1px solid var(--line)}
  .faq-item:last-child{border-bottom:0}
  .faq-item summary{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:22px 0;font-size:17px;font-weight:600;line-height:1.5;cursor:pointer;
    list-style:none;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary:hover{color:var(--brand-700)}
  .faq-item .chev{width:20px;height:20px;flex:none;color:var(--brand-700);transition:transform .22s ease}
  .faq-item[open] .chev{transform:rotate(180deg)}
  .faq-item p{padding:0 0 22px;font-size:15.5px;line-height:1.85;color:var(--ink-soft);max-width:96%}

  /* ============ CTA 条 ============ */
  .cta-band{
    position:relative;overflow:hidden;border-radius:32px;
    background:var(--grad-brand);color:#fff;padding:44px;
    display:grid;gap:26px;
  }
  .cta-band::after{
    content:"";position:absolute;right:-60px;bottom:-100px;width:260px;height:260px;
    background:repeating-linear-gradient(90deg,rgba(255,255,255,.09) 0 1px,transparent 1px 26px);
    transform:rotate(-12deg);pointer-events:none;
  }
  .cta-band h2{font-size:clamp(22px,2.6vw,30px);line-height:1.32;font-weight:600;margin-bottom:12px}
  .cta-band p{font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.86);max-width:600px}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:2}
  .cta-actions .btn{min-width:180px}

  /* ============ 相关分类 ============ */
  .pill-links{display:flex;flex-wrap:wrap;gap:12px}
  .pill-link{
    display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 18px;
    border-radius:999px;border:1px solid var(--line);background:var(--surface);
    font-size:14px;color:var(--ink);
    transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
  }
  .pill-link svg{width:14px;height:14px;color:var(--brand-500);transition:transform .18s ease}
  .pill-link:hover{border-color:var(--brand-500);color:var(--brand-700);background:var(--brand-50);transform:translateY(-1px)}
  .pill-link:hover svg{transform:translateX(3px)}

  /* ============ 页脚 ============ */
  .site-footer{background:var(--surface);border-top:1px solid var(--line);padding:64px 0 0;margin-top:0}
  .footer-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:34px}
  .footer-about{font-size:14px;line-height:1.85;color:var(--ink-soft);margin-top:14px;max-width:330px}
  .footer-col h4{font-size:14px;font-weight:600;letter-spacing:.04em;margin-bottom:14px}
  .footer-col ul{display:flex;flex-direction:column;gap:10px;font-size:14px}
  .footer-col ul a{color:var(--ink-soft)}
  .footer-col ul a:hover{color:var(--brand-700);text-decoration:underline}
  .footer-contact p{font-size:14px;line-height:1.8;color:var(--ink-soft);margin-bottom:8px}
  .footer-bottom{
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
    border-top:1px solid var(--line);margin-top:44px;padding:20px 0;
    font-size:13px;color:var(--ink-soft);
  }

  /* ============ 响应式 ============ */
  @media (min-width:640px){
    .stats{grid-template-columns:repeat(2,minmax(0,1fr))}
    .scene-list{grid-template-columns:repeat(2,minmax(0,1fr))}
  }
  @media (min-width:768px){
    .stats{grid-template-columns:repeat(4,minmax(0,1fr))}
    .scene-list{grid-template-columns:repeat(3,minmax(0,1fr))}
    .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  }
  @media (min-width:900px){
    .cta-band{grid-template-columns:minmax(0,1fr) auto;align-items:center;padding:52px}
  }
  @media (min-width:1024px){
    .footer-grid{grid-template-columns:1.5fr .8fr .9fr 1.2fr}
  }
  @media (min-width:1280px){
    .dim-layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:56px;align-items:start}
    .dim-toc{
      flex-direction:column;gap:2px;overflow:visible;margin:0;padding:0;
      position:sticky;top:32px;
    }
    .dim-toc .toc-label{
      display:block;font-size:12px;letter-spacing:.16em;color:var(--ink-soft);
      padding:0 0 10px 12px;
    }
    .dim-toc a{
      height:auto;padding:9px 12px;border:0;border-radius:10px;background:transparent;
      font-size:13.5px;color:var(--ink-soft);justify-content:flex-start;white-space:normal;
    }
    .dim-toc a:hover{background:var(--brand-50);color:var(--brand-700)}
  }
  @media (max-width:1023px){
    .sidebar{display:none}
    .main-area{margin-left:0;padding-top:60px}
    .mobile-topbar{
      display:flex;align-items:center;justify-content:space-between;gap:12px;
      position:fixed;top:0;left:0;right:0;height:60px;padding:0 16px;
      background:var(--surface);border-bottom:1px solid var(--line);z-index:60;
    }
    .mobile-topbar .logo{padding:0;gap:8px}
    .mobile-topbar .logo-mark{width:30px;height:30px}
    .mobile-topbar .brand-name{font-size:14px;line-height:1.2;max-width:170px}
    .mobile-topbar .brand-sub{display:none}
    .burger{
      width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
      border-radius:12px;border:1px solid var(--line);background:var(--surface);flex:none;
    }
    .burger:hover{background:var(--brand-50)}
    .burger svg{width:20px;height:20px;color:var(--brand-700)}
    .container-page{padding:0 24px}
  }
  @media (max-width:767px){
    .section{padding:56px 0}
    .section-tight{padding:40px 0}
    .hero-narrow-inner{padding:38px 0 34px}
    .hero-narrow::after{width:62%;opacity:.24}
    .panel-deep{padding:30px 22px;border-radius:20px}
    .cta-band{padding:32px 22px;border-radius:22px}
    .cta-actions .btn{width:100%}
    .faq{padding:4px 18px;border-radius:20px}
    .faq-item summary{font-size:15.5px;padding:18px 0}
    .footer-bottom{font-size:12.5px}
  }
  @media (max-width:639px){
    .container-page{padding:0 16px}
    .dim-item{grid-template-columns:42px minmax(0,1fr);gap:14px;padding:20px 8px}
    .dim-num{font-size:23px;padding-top:2px}
    .dim-title{font-size:17px}
    .dim-desc{font-size:14.5px}
    .scene-list{grid-template-columns:minmax(0,1fr)}
  }
  @media (prefers-reduced-motion:reduce){
    *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  }

/* roulang page: category2 */
:root{
    --brand-900:#0E4239;
    --brand-700:#14655A;
    --brand-500:#1E8C77;
    --brand-200:#A8D6C8;
    --brand-50:#EAF4F0;
    --accent-600:#B4602F;
    --accent-100:#F6E7DA;
    --ink:#17211D;
    --ink-soft:#5A6761;
    --line:#E2DCD0;
    --bg:#F6F3EC;
    --surface:#FFFFFF;
    --danger:#B4472F;
    --grad-brand:linear-gradient(135deg,#0E4239 0%,#1E8C77 58%,#7FBFAC 100%);
    --grad-text:linear-gradient(100deg,#14655A 0%,#1E8C77 50%,#B4602F 100%);
    --shadow-card:0 8px 24px rgba(14,66,57,.07);
    --shadow-hover:0 16px 36px rgba(14,66,57,.13);
    --side-w:240px;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;border:0;}
  a{color:inherit;text-decoration:none;transition:color .18s ease-out;}
  a:hover{color:var(--brand-700);text-underline-offset:4px;}
  a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
    outline:2px solid var(--accent-600);
    outline-offset:2px;
    border-radius:6px;
  }
  button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
  ul,ol{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4,p{margin:0;}
  ::selection{background:var(--brand-200);color:var(--brand-900);}
  ::-webkit-scrollbar{width:10px;height:10px;}
  ::-webkit-scrollbar-thumb{background:#cfd8d2;border-radius:999px;border:3px solid var(--bg);}
  ::-webkit-scrollbar-thumb:hover{background:var(--brand-200);}

  .container-page{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding:0 40px;
  }

  /* ---------- 应用外壳与侧栏 ---------- */
  .app-shell{display:flex;min-height:100vh;align-items:stretch;}

  .side-nav{
    width:var(--side-w);
    flex:0 0 var(--side-w);
    background:var(--surface);
    border-right:1px solid var(--line);
    position:sticky;
    top:0;
    height:100vh;
    display:flex;
    flex-direction:column;
    padding:22px 16px 18px;
    z-index:60;
  }

  .logo{display:flex;align-items:center;gap:10px;padding:2px 4px 0;}
  .logo-mark{width:38px;height:38px;flex:0 0 38px;}
  .brand-text{display:flex;flex-direction:column;line-height:1.25;}
  .brand-name{
    font-size:15px;
    font-weight:600;
    color:var(--brand-900);
    letter-spacing:.01em;
  }
  .brand-sub{font-size:12px;color:var(--ink-soft);letter-spacing:.02em;}

  .nav-group{display:flex;flex-direction:column;gap:4px;margin-top:24px;}
  .nav-item{
    display:flex;
    align-items:center;
    gap:10px;
    height:44px;
    padding:0 12px;
    border-radius:12px;
    font-size:14.5px;
    color:var(--ink);
    position:relative;
    transition:background-color .18s ease-out,color .18s ease-out;
  }
  .nav-item svg{width:20px;height:20px;flex:0 0 20px;color:var(--brand-500);}
  .nav-item:hover{background:var(--brand-50);color:var(--brand-700);}
  .nav-item.active{
    background:var(--brand-50);
    color:var(--brand-700);
    font-weight:600;
  }
  .nav-item.active::before{
    content:"";
    position:absolute;
    left:-16px;
    top:10px;
    bottom:10px;
    width:3px;
    border-radius:0 3px 3px 0;
    background:var(--accent-600);
  }
  .nav-item.active svg{color:var(--brand-700);}

  .side-divider{height:1px;background:var(--line);margin:20px 4px;}

  .metric-card{
    background:var(--brand-50);
    border:1px solid var(--line);
    border-radius:16px;
    padding:14px 14px 12px;
  }
  .metric-card h4{
    font-size:12px;
    letter-spacing:.14em;
    color:var(--ink-soft);
    font-weight:600;
    margin-bottom:10px;
  }
  .metric-row{
    display:flex;
    align-items:baseline;
    justify-content:space-between;
    gap:8px;
    font-size:13px;
    color:var(--ink-soft);
    padding:4px 0;
  }
  .metric-row strong{
    font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
    font-variant-numeric:tabular-nums;
    font-size:16px;
    color:var(--brand-900);
    font-weight:600;
  }

  .side-cta{margin-top:auto;padding-top:18px;}
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    min-height:46px;
    padding:0 22px;
    border-radius:12px;
    font-size:15px;
    font-weight:600;
    line-height:1;
    transition:transform .18s ease-out,box-shadow .2s ease-out,background-color .18s ease-out,filter .18s ease-out;
  }
  .btn-primary{
    background:var(--grad-brand);
    color:#fff;
    box-shadow:0 8px 20px rgba(14,66,57,.22);
  }
  .btn-primary:hover{filter:brightness(1.06);box-shadow:0 14px 28px rgba(14,66,57,.26);transform:translateY(-1px);color:#fff;}
  .btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(14,66,57,.2);}
  .btn-outline{
    background:var(--surface);
    color:var(--brand-700);
    border:1px solid var(--brand-700);
  }
  .btn-outline:hover{background:var(--brand-50);transform:translateY(-1px);color:var(--brand-700);}
  .btn-outline:active{transform:translateY(0);}
  .btn-block{display:flex;width:100%;}
  .btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}

  .link-arrow{
    display:inline-flex;
    align-items:center;
    gap:6px;
    font-size:14px;
    font-weight:600;
    color:var(--brand-700);
  }
  .link-arrow svg{width:16px;height:16px;transition:transform .18s ease-out;}
  .link-arrow:hover svg{transform:translateX(4px);}

  /* ---------- 主内容 ---------- */
  .shell-main{flex:1 1 auto;min-width:0;margin-left:0;}

  .mobile-bar{display:none;}

  .breadcrumb{
    display:flex;
    align-items:center;
    flex-wrap:wrap;
    gap:8px;
    font-size:12.5px;
    color:var(--ink-soft);
    padding-top:26px;
  }
  .breadcrumb a:hover{text-decoration:underline;}
  .breadcrumb .sep{color:#b8c2bc;}

  /* 窄 Hero */
  .page-hero{
    position:relative;
    margin-top:16px;
    border-radius:24px;
    overflow:hidden;
    background:var(--brand-50);
    border:1px solid var(--line);
    min-height:260px;
    display:flex;
    align-items:center;
  }
  .page-hero::before{
    content:"";
    position:absolute;
    inset:0;
    background-image:url('/assets/images/backpic/back-1.webp');
    background-size:cover;
    background-position:center right;
    opacity:.28;
  }
  .page-hero::after{
    content:"";
    position:absolute;
    inset:0;
    background:linear-gradient(100deg,rgba(246,243,236,.97) 0%,rgba(246,243,236,.9) 46%,rgba(234,244,240,.55) 100%);
  }
  .hero-inner{position:relative;z-index:2;padding:38px 40px;max-width:720px;}
  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    height:26px;
    padding:0 12px;
    border-radius:999px;
    border:1px solid var(--brand-200);
    background:rgba(255,255,255,.72);
    color:var(--brand-700);
    font-size:12px;
    letter-spacing:.18em;
    text-transform:uppercase;
    font-weight:600;
  }
  .eyebrow .dot{width:6px;height:6px;border-radius:999px;background:var(--accent-600);}
  .page-hero h1{
    margin-top:16px;
    font-size:clamp(28px,3.4vw,40px);
    line-height:1.2;
    font-weight:600;
    color:var(--brand-900);
    letter-spacing:-.01em;
  }
  .page-hero h1 .hl{
    background:var(--grad-text);
    -webkit-background-clip:text;
    background-clip:text;
    color:transparent;
  }
  .page-hero p.lead{
    margin-top:14px;
    font-size:16.5px;
    line-height:1.8;
    color:var(--ink-soft);
    max-width:600px;
  }
  .hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
  .tag{
    display:inline-flex;
    align-items:center;
    gap:6px;
    height:26px;
    padding:0 11px;
    border-radius:999px;
    font-size:12.5px;
    background:var(--surface);
    border:1px solid var(--line);
    color:var(--ink-soft);
  }
  .tag .dot{width:6px;height:6px;border-radius:999px;background:var(--brand-500);}
  .tag.accent{background:var(--accent-100);border-color:#EBD3BE;color:#8A4620;}
  .tag.accent .dot{background:var(--accent-600);}

  /* 板块 */
  .section{padding:72px 0 0;}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:26px;}
  .section-head h2{
    position:relative;
    padding-left:14px;
    font-size:clamp(22px,2.4vw,30px);
    line-height:1.3;
    font-weight:600;
    color:var(--brand-900);
  }
  .section-head h2::before{
    content:"";
    position:absolute;
    left:0;
    top:.28em;
    width:3px;
    height:18px;
    border-radius:2px;
    background:var(--accent-600);
  }
  .section-head .note{font-size:13px;color:var(--ink-soft);max-width:460px;}
  .section-head h3{font-size:19px;font-weight:600;color:var(--brand-900);}

  /* 等级阶梯 */
  .tier-ladder{
    display:grid;
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:22px;
    align-items:start;
  }
  .tier-card{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:24px;
    padding:22px 22px 20px;
    box-shadow:var(--shadow-card);
    transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
    position:relative;
    overflow:hidden;
  }
  .tier-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:var(--brand-200);}
  .tier-card.t2{padding-top:46px;}
  .tier-card.t3{padding-top:70px;}
  .tier-card.t3::after{
    content:"";
    position:absolute;
    top:0;left:0;right:0;
    height:3px;
    background:var(--grad-brand);
  }
  .tier-badge{
    display:inline-flex;
    align-items:center;
    gap:7px;
    height:26px;
    padding:0 11px;
    border-radius:999px;
    background:var(--accent-100);
    color:#8A4620;
    font-size:12.5px;
    font-weight:600;
    letter-spacing:.06em;
  }
  .tier-badge .dot{width:6px;height:6px;border-radius:999px;background:var(--accent-600);}
  .tier-card h3{margin-top:14px;font-size:21px;font-weight:600;color:var(--brand-900);}
  .tier-card .tier-desc{margin-top:6px;font-size:13.5px;color:var(--ink-soft);line-height:1.7;}
  .tier-figure{
    margin-top:18px;
    padding:14px 16px;
    border-radius:16px;
    background:var(--brand-50);
    border:1px solid #DAE9E3;
    display:flex;
    align-items:baseline;
    gap:8px;
  }
  .tier-figure .num{
    font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
    font-variant-numeric:tabular-nums;
    font-size:34px;
    font-weight:600;
    line-height:1;
    color:var(--brand-900);
    letter-spacing:-.02em;
  }
  .tier-figure .unit{font-size:13px;color:var(--ink-soft);}
  .tier-list{margin-top:16px;display:flex;flex-direction:column;gap:9px;}
  .tier-list li{
    position:relative;
    padding-left:20px;
    font-size:14px;
    line-height:1.7;
    color:var(--ink-soft);
  }
  .tier-list li::before{
    content:"";
    position:absolute;
    left:2px;top:.6em;
    width:8px;height:8px;
    border-radius:2px;
    background:var(--brand-200);
    transform:rotate(45deg);
  }
  .tier-card .tier-link{margin-top:18px;display:inline-flex;font-size:13.5px;}

  /* 对照表 */
  .compare-card{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:24px;
    box-shadow:var(--shadow-card);
    overflow:hidden;
  }
  .compare-scroll{overflow-x:auto;}
  table.compare{
    width:100%;
    border-collapse:collapse;
    font-size:14.5px;
    min-width:720px;
  }
  table.compare thead th{
    background:var(--brand-50);
    color:var(--brand-900);
    font-weight:600;
    font-size:13.5px;
    text-align:left;
    padding:16px 18px;
    border-bottom:1px solid var(--line);
    white-space:nowrap;
  }
  table.compare thead th.col-hl{
    background:#E0F0EA;
    box-shadow:inset 0 3px 0 0 var(--brand-500);
  }
  table.compare tbody td{
    padding:15px 18px;
    border-bottom:1px solid #EFEBE2;
    color:var(--ink-soft);
    vertical-align:middle;
  }
  table.compare tbody tr:hover td{background:#FBFAF6;}
  table.compare tbody tr:last-child td{border-bottom:0;}
  table.compare td.item{
    color:var(--ink);
    font-weight:600;
    font-size:14px;
    white-space:nowrap;
  }
  table.compare td.col-hl{background:var(--brand-50);color:var(--brand-900);font-weight:600;}
  table.compare tbody tr:hover td.col-hl{background:#E0F0EA;}
  .mark{display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px;}
  .mark svg{width:18px;height:18px;}
  .mark.yes svg{color:var(--brand-500);}
  .mark.no svg{color:#C6BFB2;}
  .mono{font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace;font-variant-numeric:tabular-nums;}

  /* 说明图文块 */
  .split{
    display:grid;
    grid-template-columns:1.05fr .95fr;
    gap:26px;
    align-items:stretch;
  }
  .panel{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:24px;
    padding:28px;
    box-shadow:var(--shadow-card);
  }
  .panel h3{font-size:20px;font-weight:600;color:var(--brand-900);margin-bottom:12px;}
  .panel p{font-size:15px;line-height:1.85;color:var(--ink-soft);}
  .panel p + p{margin-top:10px;}
  .media-card{
    position:relative;
    border-radius:24px;
    overflow:hidden;
    border:1px solid var(--line);
    box-shadow:var(--shadow-card);
    min-height:280px;
    background:var(--brand-50);
  }
  .media-card img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out;}
  .media-card:hover img{transform:scale(1.03);}
  .media-caption{
    position:absolute;
    left:16px;right:16px;bottom:16px;
    background:rgba(255,255,255,.94);
    border:1px solid var(--line);
    border-radius:16px;
    padding:12px 14px;
    font-size:13px;
    color:var(--ink-soft);
    line-height:1.6;
  }
  .media-caption strong{display:block;color:var(--brand-900);font-size:14px;margin-bottom:2px;}

  .fact-grid{
    display:grid;
    grid-template-columns:repeat(4,minmax(0,1fr));
    gap:18px;
  }
  .fact{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:16px;
    padding:18px 18px 16px;
    box-shadow:var(--shadow-card);
    transition:transform .2s ease-out,box-shadow .2s ease-out;
  }
  .fact:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
  .fact .label{font-size:13px;color:var(--ink-soft);}
  .fact .value{
    margin-top:8px;
    font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
    font-variant-numeric:tabular-nums;
    font-size:26px;
    font-weight:600;
    color:var(--brand-900);
    line-height:1.1;
  }
  .fact .value span{font-size:13px;color:var(--ink-soft);font-family:inherit;font-weight:500;margin-left:4px;}

  /* 权益清单 */
  .rule-list{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:24px;
    overflow:hidden;
    box-shadow:var(--shadow-card);
  }
  .rule-item{
    display:grid;
    grid-template-columns:72px 1fr;
    gap:20px;
    padding:22px 26px;
    border-bottom:1px solid #EFEBE2;
    transition:background-color .18s ease-out;
  }
  .rule-item:last-child{border-bottom:0;}
  .rule-item:hover{background:#FBFAF6;}
  .rule-item .idx{
    font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
    font-variant-numeric:tabular-nums;
    font-size:26px;
    font-weight:600;
    color:var(--accent-600);
    line-height:1.2;
  }
  .rule-item h3{font-size:16.5px;font-weight:600;color:var(--brand-900);}
  .rule-item p{margin-top:5px;font-size:14.5px;line-height:1.8;color:var(--ink-soft);}

  /* FAQ */
  .faq-wrap{max-width:840px;margin:0 auto;}
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-item summary{
    list-style:none;
    display:flex;
    align-items:flex-start;
    justify-content:space-between;
    gap:18px;
    padding:20px 2px;
    cursor:pointer;
    font-size:16.5px;
    font-weight:600;
    color:var(--brand-900);
    line-height:1.6;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary:hover{color:var(--brand-700);}
  .faq-icon{
    flex:0 0 22px;
    width:22px;height:22px;
    margin-top:3px;
    border-radius:999px;
    border:1px solid var(--brand-200);
    color:var(--brand-700);
    display:inline-flex;align-items:center;justify-content:center;
    transition:transform .22s ease-out,background-color .18s ease-out;
  }
  .faq-icon svg{width:12px;height:12px;}
  .faq-item[open] .faq-icon{transform:rotate(180deg);background:var(--brand-50);}
  .faq-answer{padding:0 2px 22px;font-size:15.5px;line-height:1.85;color:var(--ink-soft);max-width:760px;}

  /* CTA */
  .cta-card{
    position:relative;
    overflow:hidden;
    border-radius:32px;
    background:var(--grad-brand);
    padding:38px 40px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:28px;
    color:#fff;
    box-shadow:0 18px 40px rgba(14,66,57,.22);
  }
  .cta-card::after{
    content:"";
    position:absolute;
    right:-60px;bottom:-70px;
    width:320px;height:320px;
    border-radius:999px;
    border:1px solid rgba(255,255,255,.16);
    box-shadow:0 0 0 40px rgba(255,255,255,.05),0 0 0 90px rgba(255,255,255,.04);
  }
  .cta-card h2{font-size:clamp(21px,2.3vw,28px);font-weight:600;line-height:1.35;}
  .cta-card p{margin-top:10px;font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.86);max-width:520px;}
  .cta-card .btn-outline{background:#fff;border-color:#fff;color:var(--brand-900);}
  .cta-card .btn-outline:hover{background:#EAF4F0;color:var(--brand-900);}
  .cta-inner{position:relative;z-index:2;}
  .cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:12px;}

  /* 相关分类 */
  .rel-chips{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px;}
  .chip-link{
    display:inline-flex;
    align-items:center;
    gap:8px;
    min-height:44px;
    padding:0 18px;
    border-radius:999px;
    background:var(--surface);
    border:1px solid var(--line);
    font-size:14px;
    font-weight:600;
    color:var(--brand-900);
    box-shadow:var(--shadow-card);
    transition:transform .18s ease-out,box-shadow .2s ease-out,border-color .18s ease-out;
  }
  .chip-link:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--brand-200);color:var(--brand-700);}
  .chip-link svg{width:16px;height:16px;color:var(--accent-600);}

  /* 页脚 */
  .site-footer{
    margin-top:88px;
    background:#fff;
    border-top:1px solid var(--line);
    padding:56px 0 0;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.4fr .8fr .8fr 1.1fr;
    gap:32px;
  }
  .footer-col h4{
    font-size:13px;
    letter-spacing:.12em;
    color:var(--brand-900);
    font-weight:600;
    margin-bottom:14px;
  }
  .footer-about{margin-top:14px;font-size:13.5px;line-height:1.85;color:var(--ink-soft);max-width:320px;}
  .footer-col ul{display:flex;flex-direction:column;gap:10px;}
  .footer-col ul a{font-size:14px;color:var(--ink-soft);}
  .footer-col ul a:hover{color:var(--brand-700);text-decoration:underline;}
  .footer-contact p{font-size:13.5px;line-height:1.9;color:var(--ink-soft);}
  .footer-bottom{
    margin-top:44px;
    border-top:1px solid var(--line);
    padding:18px 0 22px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:14px;
    flex-wrap:wrap;
    font-size:12.5px;
    color:var(--ink-soft);
  }

  /* 移动抽屉 */
  .drawer-mask{
    position:fixed;inset:0;
    background:rgba(23,33,29,.5);
    opacity:0;visibility:hidden;
    transition:opacity .22s ease-out,visibility .22s ease-out;
    z-index:80;
  }
  .drawer-mask.open{opacity:1;visibility:visible;}
  .drawer{
    position:fixed;
    top:0;right:0;
    width:82vw;
    max-width:320px;
    height:100vh;
    background:var(--brand-900);
    color:#fff;
    transform:translateX(100%);
    transition:transform .26s ease-out;
    z-index:90;
    display:flex;
    flex-direction:column;
    padding:18px 18px 24px;
    overflow-y:auto;
  }
  .drawer.open{transform:translateX(0);}
  .drawer-top{display:flex;align-items:center;justify-content:space-between;gap:10px;}
  .drawer .brand-name{color:#fff;font-size:14px;}
  .drawer .brand-sub{color:rgba(255,255,255,.66);}
  .drawer-close{
    width:44px;height:44px;
    border-radius:12px;
    display:inline-flex;align-items:center;justify-content:center;
    background:rgba(255,255,255,.1);
    color:#fff;
  }
  .drawer-close svg{width:18px;height:18px;}
  .drawer nav{display:flex;flex-direction:column;gap:6px;margin-top:26px;}
  .drawer .nav-item{color:#fff;height:46px;}
  .drawer .nav-item svg{color:var(--brand-200);}
  .drawer .nav-item:hover{background:rgba(255,255,255,.1);color:#fff;}
  .drawer .nav-item.active{background:rgba(255,255,255,.14);color:#fff;}
  .drawer .nav-item.active::before{display:none;}
  .drawer .nav-item.active svg{color:#fff;}
  .drawer .side-cta{margin-top:26px;}
  .drawer .btn-primary{background:#fff;color:var(--brand-900);box-shadow:none;}
  .drawer .btn-primary:hover{background:#EAF4F0;color:var(--brand-900);}

  /* 响应式 */
  @media (max-width:1279px){
    .container-page{padding:0 32px;}
  }
  @media (max-width:1023px){
    .side-nav{display:none;}
    .shell-main{margin-left:0;padding-top:60px;}
    .mobile-bar{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      position:fixed;
      top:0;left:0;right:0;
      height:60px;
      padding:0 16px;
      background:#fff;
      border-bottom:1px solid var(--line);
      z-index:70;
    }
    .mobile-bar .logo{padding:0;gap:8px;}
    .mobile-bar .logo-mark{width:30px;height:30px;flex:0 0 30px;}
    .mobile-bar .brand-name{font-size:14px;line-height:1.2;max-width:200px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
    .mobile-bar .brand-sub{display:none;}
    .hamburger{
      width:44px;height:44px;
      border-radius:12px;
      border:1px solid var(--line);
      display:inline-flex;align-items:center;justify-content:center;
      color:var(--brand-900);
      background:#fff;
      flex:0 0 44px;
    }
    .hamburger svg{width:20px;height:20px;}
    .breadcrumb{padding-top:20px;}
    .page-hero{margin-top:14px;min-height:230px;}
    .hero-inner{padding:28px 24px;}
    .container-page{padding:0 24px;}
    .tier-ladder{grid-template-columns:repeat(2,minmax(0,1fr));}
    .tier-card.t3{grid-column:1 / -1;padding-top:22px;}
    .fact-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .split{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
    .cta-card{flex-direction:column;align-items:flex-start;padding:32px 26px;}
    .cta-actions{width:100%;}
    .cta-actions .btn{flex:1 1 200px;}
  }
  @media (max-width:639px){
    .container-page{padding:0 16px;}
    .section{padding:52px 0 0;}
    .section-head{margin-bottom:20px;}
    .page-hero{min-height:auto;}
    .hero-inner{padding:24px 18px;}
    .page-hero p.lead{font-size:15px;}
    .tier-ladder{grid-template-columns:1fr;gap:16px;}
    .tier-card{padding:20px 18px;}
    .tier-card.t2,.tier-card.t3{padding-top:20px;}
    .compare-scroll{overflow:visible;}
    table.compare{min-width:0;display:block;}
    table.compare thead{display:none;}
    table.compare tbody{display:block;padding:8px 14px 14px;}
    table.compare tbody tr{
      display:block;
      border:1px solid var(--line);
      border-radius:16px;
      margin-top:12px;
      padding:6px 0;
      background:#FBFAF6;
    }
    table.compare tbody td{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding:9px 14px;
      border-bottom:1px dashed #E9E4DA;
      text-align:right;
    }
    table.compare tbody tr td:last-child{border-bottom:0;}
    table.compare tbody td::before{
      content:attr(data-label);
      font-size:12.5px;
      color:var(--ink-soft);
      font-weight:500;
      text-align:left;
      flex:0 0 auto;
    }
    table.compare td.item{
      background:var(--brand-50);
      font-size:14.5px;
      border-radius:12px 12px 0 0;
      border-bottom:1px solid var(--line);
      margin:0 0 4px;
    }
    table.compare td.item::before{content:"权益条目";}
    table.compare td.col-hl{background:transparent;color:var(--ink);font-weight:600;}
    .fact-grid{grid-template-columns:1fr;gap:12px;}
    .rule-item{grid-template-columns:44px 1fr;gap:14px;padding:18px 18px;}
    .rule-item .idx{font-size:20px;}
    .footer-grid{grid-template-columns:1fr;gap:24px;}
    .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
    .btn{min-height:48px;}
    .panel{padding:20px 18px;}
    .cta-card{border-radius:24px;padding:26px 20px;}
    .faq-item summary{font-size:15.5px;}
    .chip-link{width:100%;justify-content:flex-start;}
  }
  @media (prefers-reduced-motion:reduce){
    *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
  }

/* roulang page: category3 */
:root{
    --brand-900:#0E4239;
    --brand-700:#14655A;
    --brand-500:#1E8C77;
    --brand-200:#A8D6C8;
    --brand-50:#EAF4F0;
    --accent-600:#B4602F;
    --accent-100:#F6E7DA;
    --ink:#17211D;
    --ink-soft:#5A6761;
    --line:#E2DCD0;
    --bg:#F6F3EC;
    --surface:#FFFFFF;
    --danger:#B4472F;
    --grad-brand:linear-gradient(135deg,#0E4239 0%,#1E8C77 58%,#7FBFAC 100%);
    --radius-lg:24px;
    --radius-md:16px;
    --radius-sm:10px;
    --radius-btn:12px;
    --shadow-card:0 8px 24px rgba(14,66,57,.07);
    --shadow-hover:0 16px 36px rgba(14,66,57,.13);
    --sidebar-w:240px;
  }

  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none;transition:color .18s ease-out,text-decoration-color .18s ease-out}
  a:hover{color:var(--brand-700);text-underline-offset:4px}
  button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
  input,select,textarea{font-family:inherit;font-size:16px;color:var(--ink)}
  ul,ol{margin:0;padding:0;list-style:none}
  h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:.01em}
  p{margin:0}
  :focus-visible{outline:2px solid var(--accent-600);outline-offset:2px;border-radius:6px}

  .container-page{max-width:1200px;margin:0 auto;padding:0 40px}
  @media (max-width:1023px){.container-page{padding:0 24px}}
  @media (max-width:639px){.container-page{padding:0 16px}}

  .num{font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace;font-variant-numeric:tabular-nums}

  /* ---------- 侧栏 ---------- */
  .sidebar{
    position:fixed;
    top:0;left:0;
    width:var(--sidebar-w);
    height:100vh;
    background:var(--surface);
    border-right:1px solid var(--line);
    display:flex;
    flex-direction:column;
    padding:22px 16px 18px;
    z-index:60;
    overflow-y:auto;
  }
  .sidebar-head{display:flex;align-items:flex-start;justify-content:space-between;gap:8px}
  .logo{display:flex;align-items:center;gap:10px;padding:0 6px 0 2px}
  .logo-mark{width:36px;height:36px;flex:0 0 36px}
  .brand-text{display:flex;flex-direction:column;line-height:1.25}
  .brand-name{font-size:15px;font-weight:600;color:var(--brand-900)}
  .brand-sub{font-size:11.5px;color:var(--ink-soft);letter-spacing:.02em;margin-top:2px}

  .nav-group{display:flex;flex-direction:column;gap:4px;margin-top:26px}
  .nav-item{
    display:flex;align-items:center;gap:10px;
    min-height:44px;
    padding:0 12px;
    border-radius:var(--radius-btn);
    font-size:14.5px;
    color:var(--ink-soft);
    border-left:3px solid transparent;
    transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
  }
  .nav-item svg{width:19px;height:19px;flex:0 0 19px;opacity:.85}
  .nav-item:hover{background:var(--brand-50);color:var(--brand-700)}
  .nav-item.active{background:var(--brand-50);color:var(--brand-700);border-left-color:var(--accent-600);font-weight:600}
  .nav-item.active svg{opacity:1}

  .sidebar-sep{height:1px;background:var(--line);margin:18px 6px}

  .side-stat{
    background:var(--brand-50);
    border:1px solid #D8E9E2;
    border-radius:var(--radius-md);
    padding:14px 14px 12px;
    margin-bottom:10px;
  }
  .side-stat-top{display:flex;align-items:baseline;gap:6px}
  .side-stat-num{font-family:ui-monospace,"SF Mono",monospace;font-variant-numeric:tabular-nums;font-size:22px;font-weight:600;color:var(--brand-900);line-height:1}
  .side-stat-unit{font-size:12px;color:var(--brand-700)}
  .side-stat-label{display:block;font-size:12.5px;color:var(--ink-soft);margin-top:6px;line-height:1.5}

  .sidebar-foot{margin-top:auto;padding-top:18px}
  .drawer-close{display:none}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:46px;padding:0 22px;
    border-radius:var(--radius-btn);
    font-size:15px;font-weight:600;
    transition:background .2s ease-out,color .2s ease-out,box-shadow .2s ease-out,transform .18s ease-out,border-color .2s ease-out;
    white-space:nowrap;
  }
  .btn-primary{
    background:var(--grad-brand);
    color:#fff;
    box-shadow:0 8px 20px rgba(14,66,57,.18);
  }
  .btn-primary:hover{filter:brightness(1.06);box-shadow:0 14px 28px rgba(14,66,57,.24);transform:translateY(-1px);color:#fff}
  .btn-primary:active{transform:translateY(0)}
  .btn-ghost{
    background:#fff;color:var(--brand-700);border:1px solid var(--brand-700);
  }
  .btn-ghost:hover{background:var(--brand-50);color:var(--brand-900);transform:translateY(-1px)}
  .btn-block{width:100%}
  .btn-link{
    display:inline-flex;align-items:center;gap:6px;
    font-size:14.5px;font-weight:600;color:var(--brand-700);
  }
  .btn-link svg{width:15px;height:15px;transition:transform .2s ease-out}
  .btn-link:hover svg{transform:translateX(4px)}

  /* ---------- 移动顶栏与抽屉 ---------- */
  .topbar{
    display:none;
    position:fixed;top:0;left:0;right:0;height:60px;
    background:#fff;border-bottom:1px solid var(--line);
    align-items:center;justify-content:space-between;
    padding:0 14px;z-index:70;
  }
  .topbar .brand-name{font-size:14px}
  .topbar .brand-sub{display:none}
  .topbar .logo-mark{width:30px;height:30px;flex:0 0 30px}
  .hamburger{
    width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
    border-radius:var(--radius-btn);border:1px solid var(--line);background:#fff;
  }
  .hamburger svg{width:20px;height:20px;stroke:var(--brand-700)}
  .hamburger:hover{background:var(--brand-50)}
  .drawer-mask{
    position:fixed;inset:0;background:rgba(23,33,29,.5);
    opacity:0;pointer-events:none;transition:opacity .22s ease-out;z-index:80;
  }
  .drawer-mask.show{opacity:1;pointer-events:auto}

  @media (max-width:1023px){
    .sidebar{
      position:fixed;top:0;right:0;left:auto;
      width:82vw;max-width:320px;height:100vh;
      background:var(--brand-900);
      border-right:none;border-left:1px solid rgba(255,255,255,.12);
      transform:translateX(100%);
      transition:transform .26s ease-out;
      z-index:90;
      padding:18px 16px;
      overflow-y:auto;
      overscroll-behavior:contain;
    }
    .sidebar.open{transform:translateX(0)}
    .sidebar .brand-name{color:#fff}
    .sidebar .brand-sub{color:rgba(255,255,255,.62)}
    .sidebar .logo-mark{width:32px;height:32px;flex:0 0 32px}
    .drawer-close{
      display:inline-flex;align-items:center;justify-content:center;
      width:44px;height:44px;border-radius:var(--radius-btn);
      color:#fff;background:rgba(255,255,255,.1);
    }
    .drawer-close:hover{background:rgba(255,255,255,.2)}
    .nav-item{color:rgba(255,255,255,.82);border-left-color:transparent}
    .nav-item svg{opacity:.9}
    .nav-item:hover{background:rgba(255,255,255,.1);color:#fff}
    .nav-item.active{background:rgba(255,255,255,.14);color:#fff;border-left-color:var(--accent-600)}
    .sidebar-sep{background:rgba(255,255,255,.16)}
    .side-stat{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.16)}
    .side-stat-num{color:#fff}
    .side-stat-unit{color:var(--brand-200)}
    .side-stat-label{color:rgba(255,255,255,.7)}
    .sidebar-foot .btn-primary{box-shadow:none}
    .topbar{display:flex}
  }

  /* ---------- 主体布局 ---------- */
  .app-main{margin-left:var(--sidebar-w)}
  @media (max-width:1023px){
    .app-main{margin-left:0;padding-top:60px}
  }

  /* ---------- 窄 Hero ---------- */
  .page-hero{
    position:relative;
    background:var(--bg);
    border-bottom:1px solid var(--line);
    overflow:hidden;
    padding:44px 0 40px;
  }
  .hero-art{
    position:absolute;
    top:-40px;right:-60px;
    width:620px;height:400px;
    background-image:url('/assets/images/backpic/back-2.png');
    background-size:cover;
    background-position:center;
    opacity:.16;
    border-radius:0 0 0 180px;
    -webkit-mask-image:linear-gradient(255deg,#000 20%,transparent 78%);
    mask-image:linear-gradient(255deg,#000 20%,transparent 78%);
    pointer-events:none;
  }
  .page-hero .container-page{position:relative;z-index:1}
  .breadcrumb{
    display:flex;align-items:center;gap:8px;
    font-size:12.5px;color:var(--ink-soft);
    margin-bottom:18px;flex-wrap:wrap;
  }
  .breadcrumb a:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:4px}
  .breadcrumb span.sep{color:#B9B2A4}

  .badge{
    display:inline-flex;align-items:center;gap:6px;
    height:26px;padding:0 11px;border-radius:999px;
    font-size:12.5px;font-weight:600;line-height:1;
  }
  .badge-dot{width:6px;height:6px;border-radius:50%;background:currentColor;display:inline-block}
  .badge-brand{background:var(--brand-50);color:var(--brand-700);border:1px solid #D5E8E1}
  .badge-accent{background:var(--accent-100);color:#8E4A22;border:1px solid #EED8C6}
  .badge-outline{background:rgba(255,255,255,.62);color:var(--brand-900);border:1px solid var(--line)}

  h1.page-title{
    font-size:clamp(30px,4vw,46px);
    line-height:1.18;
    font-weight:600;
    color:var(--brand-900);
    margin:14px 0 12px;
    max-width:760px;
    letter-spacing:0;
  }
  .hero-lead{
    font-size:16.5px;line-height:1.85;color:#45524C;
    max-width:720px;
  }
  .hero-metrics{
    display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;
  }
  .metric-pill{
    display:inline-flex;align-items:center;gap:8px;
    background:#fff;border:1px solid var(--line);
    border-radius:999px;padding:7px 14px;
    font-size:13px;color:var(--ink-soft);
    box-shadow:0 2px 8px rgba(14,66,57,.04);
  }
  .metric-pill b{
    font-family:ui-monospace,"SF Mono",monospace;
    font-variant-numeric:tabular-nums;
    font-size:15px;color:var(--brand-900);font-weight:600;
  }

  /* ---------- 通用板块 ---------- */
  .section{padding:56px 0}
  @media (min-width:1024px){.section{padding:72px 0}}
  .section-head{margin-bottom:28px;display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap}
  .section-title{
    position:relative;
    padding-left:14px;
    font-size:clamp(22px,2.4vw,29px);
    line-height:1.3;
    color:var(--brand-900);
  }
  .section-title::before{
    content:"";position:absolute;left:0;top:6px;
    width:3px;height:18px;border-radius:2px;background:var(--accent-600);
  }
  .section-note{font-size:13px;color:var(--ink-soft);max-width:520px;line-height:1.7}

  /* ---------- 流程主区 ---------- */
  .flow-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:32px}
  @media (min-width:1180px){
    .flow-layout{grid-template-columns:minmax(0,1fr) 300px;gap:44px;align-items:start}
    .flow-aside{position:sticky;top:24px}
  }

  .timeline{position:relative;padding-left:58px}
  .timeline::before{
    content:"";position:absolute;left:19px;top:8px;bottom:8px;
    width:2px;background:linear-gradient(180deg,var(--brand-200),var(--line));
    border-radius:2px;
  }
  .timeline-item{position:relative;padding-bottom:30px}
  .timeline-item:last-child{padding-bottom:0}
  .timeline-node{
    position:absolute;left:-58px;top:0;
    width:40px;height:40px;border-radius:50%;
    background:#fff;
    border:2px solid var(--brand-500);
    color:var(--brand-700);
    display:flex;align-items:center;justify-content:center;
    font-family:ui-monospace,"SF Mono",monospace;
    font-variant-numeric:tabular-nums;
    font-size:13.5px;font-weight:600;
    box-shadow:0 0 0 5px var(--bg);
  }
  .timeline-card{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    padding:22px 24px;
    box-shadow:var(--shadow-card);
    transition:box-shadow .2s ease-out,transform .2s ease-out;
  }
  .timeline-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
  .timeline-card h3{
    font-size:19px;line-height:1.4;color:var(--brand-900);
    display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  }
  .timeline-card p{font-size:15.5px;line-height:1.85;color:var(--ink-soft);margin-top:10px}
  .meta-list{margin-top:14px;display:flex;flex-direction:column;gap:8px}
  .meta-list li{
    position:relative;padding-left:16px;
    font-size:14px;color:#45524C;line-height:1.7;
  }
  .meta-list li::before{
    content:"";position:absolute;left:0;top:9px;
    width:6px;height:6px;border-radius:50%;background:var(--brand-200);
  }
  .meta-list li b{color:var(--brand-900);font-weight:600}

  .flow-figure{
    margin-top:8px;
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    overflow:hidden;
    background:var(--surface);
    box-shadow:var(--shadow-card);
  }
  .flow-figure .fig-media{aspect-ratio:16/9;overflow:hidden}
  .flow-figure img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
  .flow-figure:hover img{transform:scale(1.03)}
  .flow-figure figcaption{
    padding:14px 20px;font-size:13px;color:var(--ink-soft);
    border-top:1px solid var(--line);background:#FDFCF9;
  }

  /* ---------- 侧栏摘要卡 ---------- */
  .aside-card{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    padding:22px;
    box-shadow:var(--shadow-card);
  }
  .aside-card + .aside-card{margin-top:18px}
  .aside-card h3{font-size:16.5px;color:var(--brand-900);margin-bottom:12px}
  .aside-list{display:flex;flex-direction:column;gap:10px}
  .aside-list li{
    display:flex;gap:10px;align-items:flex-start;
    font-size:14px;line-height:1.65;color:var(--ink-soft);
  }
  .aside-list .idx{
    font-family:ui-monospace,"SF Mono",monospace;font-variant-numeric:tabular-nums;
    font-size:12.5px;color:var(--accent-600);font-weight:600;flex:0 0 22px;
    padding-top:2px;
  }
  .aside-cta{margin-top:16px;padding-top:16px;border-top:1px dashed var(--line)}
  .aside-cta p{font-size:13px;color:var(--ink-soft);margin-bottom:12px}

  /* ---------- 纠错说明分栏 ---------- */
  .fix-grid{
    display:grid;grid-template-columns:1fr;gap:24px;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    padding:26px;
    box-shadow:var(--shadow-card);
  }
  @media (min-width:900px){.fix-grid{grid-template-columns:1.15fr .85fr;gap:32px;align-items:center}}
  .fix-grid h3{font-size:21px;color:var(--brand-900);margin-bottom:10px}
  .fix-grid p{font-size:15.5px;line-height:1.85;color:var(--ink-soft)}
  .fix-media{border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--line);aspect-ratio:4/3}
  .fix-media img{width:100%;height:100%;object-fit:cover}

  .channel-grid{display:grid;grid-template-columns:1fr;gap:16px;margin-top:24px}
  @media (min-width:720px){.channel-grid{grid-template-columns:repeat(3,1fr)}}
  .channel-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
    padding:20px;box-shadow:var(--shadow-card);
    transition:box-shadow .2s ease-out,transform .2s ease-out;
  }
  .channel-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
  .channel-card h4{font-size:16px;color:var(--brand-900);margin-bottom:8px}
  .channel-card p{font-size:14px;line-height:1.75;color:var(--ink-soft)}

  /* ---------- FAQ ---------- */
  .faq-wrap{max-width:820px;margin:0 auto}
  .faq-item{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius-md);
    margin-bottom:12px;
    overflow:hidden;
    transition:box-shadow .2s ease-out;
  }
  .faq-item[open]{box-shadow:var(--shadow-card)}
  .faq-item summary{
    list-style:none;cursor:pointer;
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 20px;
    font-size:16px;font-weight:600;color:var(--brand-900);
    line-height:1.5;
  }
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary:hover{background:#FBF9F4}
  .faq-icon{
    width:20px;height:20px;flex:0 0 20px;
    stroke:var(--brand-700);
    transition:transform .22s ease-out;
  }
  .faq-item[open] .faq-icon{transform:rotate(180deg)}
  .faq-answer{
    padding:0 20px 20px;
    font-size:15.5px;line-height:1.85;color:var(--ink-soft);
    border-top:1px solid var(--line);
    margin-top:-1px;padding-top:16px;
  }

  /* ---------- 相关分类胶囊 ---------- */
  .rel-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
  .rel-pill{
    display:inline-flex;align-items:center;gap:8px;
    min-height:44px;padding:0 18px;border-radius:999px;
    background:#fff;border:1px solid var(--line);
    font-size:14.5px;color:var(--brand-900);font-weight:500;
    box-shadow:0 2px 8px rgba(14,66,57,.04);
    transition:border-color .2s ease-out,background .2s ease-out,transform .18s ease-out;
  }
  .rel-pill:hover{border-color:var(--brand-500);background:var(--brand-50);transform:translateY(-1px)}
  .rel-pill svg{width:14px;height:14px;stroke:var(--brand-500)}

  /* ---------- CTA ---------- */
  .cta-band{
    position:relative;
    border-radius:32px;
    background:var(--grad-brand);
    color:#fff;
    padding:38px 34px;
    overflow:hidden;
    display:grid;grid-template-columns:1fr;gap:24px;
    box-shadow:0 20px 44px rgba(14,66,57,.2);
  }
  @media (min-width:880px){.cta-band{grid-template-columns:1fr auto;align-items:center;padding:44px 46px}}
  .cta-band::after{
    content:"";position:absolute;right:-70px;bottom:-90px;
    width:300px;height:300px;border-radius:50%;
    background:repeating-linear-gradient(90deg,rgba(255,255,255,.12) 0 2px,transparent 2px 22px);
    opacity:.5;pointer-events:none;
  }
  .cta-band h2{font-size:clamp(22px,2.6vw,30px);line-height:1.3;color:#fff;position:relative}
  .cta-band p{margin-top:10px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.85);max-width:560px;position:relative}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative}
  .cta-actions .btn-white{background:#fff;color:var(--brand-900);box-shadow:0 10px 24px rgba(0,0,0,.14)}
  .cta-actions .btn-white:hover{transform:translateY(-1px);color:var(--brand-900);background:#FDFCF9}
  .cta-actions .btn-outline-white{background:transparent;border:1px solid rgba(255,255,255,.6);color:#fff}
  .cta-actions .btn-outline-white:hover{background:rgba(255,255,255,.14);color:#fff}

  /* ---------- 页脚 ---------- */
  .site-footer{
    margin-top:64px;
    background:#0B332C;
    color:rgba(255,255,255,.78);
    padding:52px 0 0;
  }
  .footer-grid{display:grid;grid-template-columns:1fr;gap:30px}
  @media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
  @media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr .8fr .8fr 1.1fr;gap:36px}}
  .site-footer .brand-name{color:#fff}
  .site-footer .brand-sub{color:rgba(255,255,255,.6)}
  .footer-about{margin-top:14px;font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.66);max-width:320px}
  .footer-col h4{font-size:14px;color:#fff;margin-bottom:14px;letter-spacing:.04em}
  .footer-col ul{display:flex;flex-direction:column;gap:10px}
  .footer-col a{font-size:13.5px;color:rgba(255,255,255,.72)}
  .footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
  .footer-contact p{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.66);margin-bottom:8px}
  .footer-bottom{
    margin-top:40px;
    border-top:1px solid rgba(255,255,255,.14);
    padding:18px 0 22px;
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
    font-size:12.5px;color:rgba(255,255,255,.55);
  }

  @media (prefers-reduced-motion:reduce){
    *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
  }