/* roulang page: index */
:root{
  --brand:#0C4DA2;
  --brand-dark:#0A3A78;
  --brand-deep:#08213F;
  --brand-soft:#E6EEF9;
  --jade:#0E9E8F;
  --jade-soft:#E4F5F3;
  --flame:#F2701E;
  --flame-soft:#FDEBE0;
  --bg:#F5F7FA;
  --card:#FFFFFF;
  --line:#E3E8EF;
  --text:#0E1B2C;
  --muted:#5B6B7F;
  --faint:#8A98A8;
  --rc:14px;
  --rb:10px;
  --shadow-card:0 1px 2px rgba(14,27,44,.04),0 8px 24px -12px rgba(12,77,162,.18);
  --shadow-lift:0 2px 6px rgba(14,27,44,.06),0 16px 34px -16px rgba(12,77,162,.28);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  padding-bottom:calc(62px + env(safe-area-inset-bottom));
  -webkit-font-smoothing:antialiased;
}
@media (min-width:768px){ body{padding-bottom:0} }
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
::selection{background:var(--brand-soft)}
h1,h2,h3,h4,p,ul,ol{margin:0;padding:0}
ul,ol{list-style:none}

.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (max-width:768px){ .container-x{padding:0 16px} }
.num{font-variant-numeric:tabular-nums;letter-spacing:-0.02em}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .2s ease}
.site-header.is-scrolled{box-shadow:0 6px 20px -12px rgba(12,77,162,.35)}
.logo-mark{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:9px;background:var(--brand);color:#fff;font-size:14px;flex:0 0 auto}
.logo-text{font-size:17px;font-weight:700;letter-spacing:.01em;color:var(--text);white-space:nowrap}
.nav-link{position:relative;display:inline-flex;align-items:center;height:70px;padding:0 14px;font-size:15px;font-weight:500;color:var(--text);transition:color .18s,background-color .18s}
.nav-link:hover{color:var(--brand);background:var(--brand-soft)}
.nav-link.active{color:var(--brand);font-weight:600}
.nav-link.active::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;border-radius:2px;background:var(--brand)}

/* ---------- tabbar ---------- */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:60;display:grid;grid-template-columns:repeat(4,1fr);
  background:#fff;border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -8px 20px -14px rgba(12,77,162,.45);
}
@media (min-width:768px){ .tabbar{display:none} }
.tab-item{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;height:60px;font-size:11px;color:var(--faint);transition:color .18s}
.tab-item i{font-size:17px}
.tab-item.active{color:var(--brand);font-weight:600}
.tab-item.active::after{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:24px;height:3px;border-radius:0 0 3px 3px;background:var(--brand)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:var(--rb);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;white-space:nowrap;transition:background-color .18s,color .18s,border-color .18s,transform .12s,box-shadow .18s}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:var(--brand-soft)}
.btn-flame{background:var(--flame);color:#fff}
.btn-flame:hover{background:#D75F13}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn-block{width:100%}
.btn-sm{height:42px;padding:0 18px;font-size:14px}

/* ---------- section ---------- */
.section{padding:72px 0}
@media (max-width:768px){ .section{padding:48px 0} }
.section-white{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.h2-bar{position:relative;padding-left:16px;font-size:28px;font-weight:700;line-height:1.35;letter-spacing:.005em}
.h2-bar::before{content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;border-radius:2px;background:var(--brand)}
@media (max-width:768px){ .h2-bar{font-size:22px} }
.lead{font-size:16px;line-height:1.85;color:var(--muted);max-width:760px}

/* ---------- hero ---------- */
.hero{background:#fff;border-bottom:1px solid var(--line)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand-dark);background:var(--brand-soft);padding:6px 13px;border-radius:999px}
.hero h1{font-size:clamp(30px,3.2vw,44px);line-height:1.25;font-weight:700;letter-spacing:-.01em}
@media (max-width:768px){ .hero h1{font-size:27px} }
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--rc);border:1px solid var(--line)}
.hero-media::after{content:"";position:absolute;right:-10px;bottom:-10px;width:70px;height:70px;border-right:2px solid var(--brand-soft);border-bottom:2px solid var(--brand-soft);border-radius:0 0 14px 0;pointer-events:none}
.trust{display:flex;flex-wrap:wrap;align-items:center;gap:0 18px;font-size:13px;color:var(--faint)}
.trust li{padding-left:18px;border-left:1px solid var(--line)}
.trust li:first-child{padding-left:0;border-left:0}
.trust strong{color:var(--brand-dark);font-weight:600}

/* ---------- metric cards ---------- */
.grid-bg{
  background-image:
    linear-gradient(to right, rgba(12,77,162,.055) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(12,77,162,.055) 1px, transparent 1px);
  background-size:42px 42px;
}
.metric-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--rc);box-shadow:var(--shadow-card);padding:22px 20px;transition:transform .18s,border-color .18s,box-shadow .18s}
.metric-card:hover{transform:translateY(-2px);border-color:#C9DBF1;box-shadow:var(--shadow-lift)}
.metric-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;border-radius:14px 14px 0 0;background:var(--brand)}
.metric-index{font-size:12px;font-weight:700;color:var(--faint);letter-spacing:.14em}
.metric-value{font-size:36px;font-weight:700;line-height:1.15;color:var(--text);font-variant-numeric:tabular-nums;letter-spacing:-.02em;margin-top:8px}
.metric-value .unit{font-size:14px;font-weight:600;color:var(--muted);margin-left:5px;letter-spacing:0}
.metric-name{font-size:15px;font-weight:600;margin-top:8px}
.metric-note{font-size:13px;line-height:1.65;color:var(--faint);margin-top:6px}
.metric-trend{position:absolute;top:14px;right:16px;font-size:12px;font-weight:600;color:var(--jade);display:inline-flex;align-items:center;gap:4px}
.metric-trend.hot{color:var(--flame)}

/* ---------- bento ---------- */
.bento{position:relative;display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--rc);box-shadow:var(--shadow-card);padding:24px;transition:transform .18s,border-color .18s,box-shadow .18s}
.bento:hover{transform:translateY(-2px);border-color:#C9DBF1;box-shadow:var(--shadow-lift)}
.bento-ico{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:11px;background:var(--brand-soft);color:var(--brand);font-size:16px;flex:0 0 auto}
.bento-title{font-size:18px;font-weight:600;line-height:1.5;margin-top:16px}
.bento-desc{font-size:14px;line-height:1.75;color:var(--muted);margin-top:8px}
.bento-img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:12px;border:1px solid var(--line);margin:18px 0 16px}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:14px;margin-top:auto;transition:gap .18s,color .18s}
.text-link:hover{gap:11px;color:var(--brand-dark)}

/* ---------- compare ---------- */
.cmp-row{display:grid;gap:14px;padding:22px 0;border-bottom:1px solid var(--line)}
.cmp-row:first-of-type{border-top:1px solid var(--line)}
@media (min-width:1024px){
  .cmp-row{grid-template-columns:1.05fr 1fr 1fr;gap:28px;align-items:start}
}
.cmp-dim{font-size:17px;font-weight:600;line-height:1.6}
.cmp-dim span{display:block;font-size:13px;font-weight:400;color:var(--faint);margin-top:4px;line-height:1.6}
.cmp-cell{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px}
.cmp-cell.ok{border-color:#BFE6E1;background:#F4FBFA}
.cmp-tag{font-size:12px;font-weight:600;color:var(--faint)}
.cmp-cell.ok .cmp-tag{color:var(--jade)}
.cmp-val{font-size:15px;line-height:1.7;margin-top:6px;color:var(--text)}
.bar{position:relative;height:6px;border-radius:999px;background:#EDF1F6;margin-top:12px;overflow:hidden}
.bar i{position:absolute;left:0;top:0;bottom:0;border-radius:999px;background:var(--faint)}
.bar.jade i{background:var(--jade)}

/* ---------- news ---------- */
.news-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--rc);box-shadow:var(--shadow-card);overflow:hidden;transition:transform .18s,border-color .18s,box-shadow .18s}
.news-card:hover{transform:translateY(-2px);border-color:#C9DBF1;box-shadow:var(--shadow-lift)}
.news-thumb{display:block;aspect-ratio:16/10;background:#EDF1F6;overflow:hidden}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.news-card:hover .news-thumb img{transform:scale(1.035)}
.news-body{display:flex;flex-direction:column;gap:10px;padding:18px 20px 20px;flex:1}
.news-title{font-size:17px;font-weight:600;line-height:1.55}
.news-title a{transition:color .18s}
.news-title a:hover{color:var(--brand)}
.news-sum{font-size:14px;line-height:1.7;color:var(--muted);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:12px;margin-top:auto;padding-top:12px;border-top:1px solid var(--line);font-size:13px;color:var(--faint)}
.news-more{color:var(--brand);font-weight:600;font-size:13px;display:inline-flex;align-items:center;gap:5px}
.news-more:hover{color:var(--brand-dark)}
.cms-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:56px 20px;background:#fff;border:1px dashed #C9DBF1;border-radius:var(--rc);color:var(--faint);font-size:15px;text-align:center}
.cms-empty .ph{width:52px;height:52px;border-radius:14px;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:20px}

.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;line-height:1.7;padding:3px 10px;border-radius:999px}
.badge-brand{background:var(--brand-soft);color:var(--brand-dark)}
.badge-jade{background:var(--jade-soft);color:#0A7A6E}
.badge-flame{background:var(--flame-soft);color:#C4560F}

/* ---------- faq ---------- */
.faq-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--rc);box-shadow:var(--shadow-card);padding:6px 24px}
@media (max-width:768px){ .faq-wrap{padding:4px 16px} }
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 0;background:none;border:0;text-align:left;font-size:16.5px;font-weight:600;line-height:1.6;cursor:pointer;color:var(--text);transition:color .18s}
.faq-q:hover{color:var(--brand)}
.faq-item.open .faq-q{color:var(--brand)}
.faq-ico{flex:0 0 auto;width:24px;height:24px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--brand);transition:transform .2s ease,background-color .2s ease,border-color .2s ease}
.faq-item.open .faq-ico{transform:rotate(45deg);background:var(--brand-soft);border-color:#C9DBF1}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease}
.faq-a-inner{padding:0 0 22px;font-size:15px;line-height:1.85;color:var(--muted);max-width:860px}

/* ---------- form ---------- */
.form-panel{background:#fff;border:1px solid var(--line);border-radius:var(--rc);box-shadow:var(--shadow-card);padding:28px}
.field{display:block;margin-bottom:18px}
.field-label{display:block;font-size:14px;font-weight:600;margin-bottom:8px}
.field-label .req{color:var(--flame);margin-left:2px}
.field input,.field select,.field textarea{width:100%;height:46px;padding:0 14px;border:1px solid var(--line);border-radius:var(--rb);background:#fff;font-size:15px;transition:border-color .18s,box-shadow .18s}
.field textarea{height:auto;min-height:112px;padding:12px 14px;line-height:1.75;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 2px var(--brand-soft)}
.field input::placeholder,.field textarea::placeholder{color:#A9B4C2}
.form-ok{display:flex;align-items:flex-start;gap:10px;background:var(--jade-soft);color:#0A7A6E;border-radius:10px;padding:12px 14px;font-size:14px;line-height:1.7;margin-bottom:18px}
.form-err{display:flex;align-items:flex-start;gap:10px;background:var(--flame-soft);color:#C4560F;border-radius:10px;padding:12px 14px;font-size:14px;line-height:1.7;margin-bottom:18px}
.side-item{display:flex;gap:14px;padding:18px 0;border-bottom:1px solid var(--line)}
.side-item:first-child{padding-top:0}
.side-item:last-child{border-bottom:0;padding-bottom:0}
.side-ico{flex:0 0 auto;width:38px;height:38px;border-radius:10px;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:15px}
.side-title{font-size:16px;font-weight:600}
.side-desc{font-size:14px;color:var(--muted);line-height:1.75;margin-top:4px}

/* ---------- cta band ---------- */
.cta-band{position:relative;background:var(--brand-deep);color:#fff;border-radius:16px;padding:44px 40px;overflow:hidden}
@media (max-width:768px){ .cta-band{padding:32px 22px} }
.cta-band::before{content:"";position:absolute;right:-40px;top:-40px;width:180px;height:180px;border-radius:50%;background:rgba(255,255,255,.05)}
.cta-band h2{font-size:26px;font-weight:700;line-height:1.4}
.cta-band p{font-size:15px;color:#AFC0D6;margin-top:12px;max-width:640px;line-height:1.85}
.cta-band .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-deep);color:#C6D2E0;font-size:13.5px;line-height:1.85}
.site-footer a{color:#C6D2E0;transition:color .18s}
.site-footer a:hover{color:#fff}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-list li{margin-bottom:9px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding-top:20px;font-size:12.5px;color:#8896A8;display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between}

/* roulang page: article */
:root{
    --brand:#0C4DA2; --brand-dark:#0A3A78; --brand-deep:#08213F; --brand-light:#E6EEF9;
    --timing:#0E9E8F; --timing-light:#E2F2F0;
    --track:#F2701E; --track-light:#FDECE1;
    --bg:#F5F7FA; --card:#FFFFFF; --line:#E3E8EF;
    --text:#0E1B2C; --text-soft:#5B6B7F; --text-mute:#8A98A8;
    --radius-card:14px; --radius-btn:10px;
    --shadow-card:0 1px 2px rgba(14,27,44,.04), 0 8px 24px -12px rgba(12,77,162,.18);
    --shadow-lift:0 2px 4px rgba(14,27,44,.05), 0 14px 32px -14px rgba(12,77,162,.26);
    --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;background:var(--bg);color:var(--text);
    font-family:var(--font-sans);font-size:16px;line-height:1.85;font-weight:400;
    padding-bottom:0;
  }
  @media (max-width:767px){ body{padding-bottom:calc(64px + env(safe-area-inset-bottom));} }
  img{max-width:100%;display:block}
  a{color:var(--brand);text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease}
  a:hover{color:var(--brand-dark)}
  button,input,select,textarea{font-family:inherit;font-size:inherit}
  button{background:none;border:none;cursor:pointer}
  .num{font-variant-numeric:tabular-nums;letter-spacing:-.02em}
  .container-x{max-width:1200px;margin:0 auto;padding-left:16px;padding-right:16px}
  @media (min-width:768px){ .container-x{padding-left:24px;padding-right:24px} }
  :focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

  /* ============ Header ============ */
  .site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .2s ease}
  .site-header.is-scrolled{box-shadow:0 6px 20px -12px rgba(12,77,162,.28)}
  .logo-mark{
    width:38px;height:38px;border-radius:10px;background:var(--brand);color:#fff;
    display:inline-flex;align-items:center;justify-content:center;font-size:17px;flex:0 0 auto;
    box-shadow:0 6px 16px -8px rgba(12,77,162,.7);
  }
  .logo-text{font-size:18px;font-weight:700;color:var(--text);letter-spacing:-.01em;white-space:nowrap}
  .nav-link{position:relative;display:inline-flex;align-items:center;height:70px;padding:0 16px;font-size:15px;font-weight:500;color:var(--text-soft)}
  .nav-link:hover{color:var(--brand);background:var(--brand-light)}
  .nav-link.active{color:var(--brand);font-weight:600}
  .nav-link.active::after{content:"";position:absolute;left:16px;right:16px;bottom:0;height:2px;background:var(--brand);border-radius:2px}

  /* ============ Buttons ============ */
  .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--radius-btn);
    font-weight:600;line-height:1;border:1px solid transparent;cursor:pointer;transition:all .18s ease;white-space:nowrap}
  .btn-primary{background:var(--brand);color:#fff;padding:13px 22px;font-size:15px}
  .btn-primary:hover{background:#0B448F;color:#fff;box-shadow:0 10px 22px -12px rgba(12,77,162,.8)}
  .btn-primary:active{transform:translateY(1px)}
  .btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand);padding:13px 22px;font-size:15px}
  .btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark)}
  .btn-track{background:var(--track);color:#fff;padding:13px 22px;font-size:15px}
  .btn-track:hover{background:#DA5F12;color:#fff}
  .btn-sm{padding:10px 16px;font-size:14px}
  .btn[disabled]{opacity:.5;cursor:not-allowed}

  /* ============ Cards ============ */
  .card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-card);
    transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;position:relative;overflow:hidden}
  .card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lift);border-color:#CFDDF4}
  .card:hover .card-title{color:var(--brand)}
  .card-topbar{position:absolute;top:0;left:0;right:0;height:3px;background:var(--brand)}
  .card-topbar.teal{background:var(--timing)}
  .card-topbar.orange{background:var(--track)}
  .card-title{font-size:17px;font-weight:600;color:var(--text);line-height:1.5;transition:color .18s ease}
  .card-desc{font-size:14px;color:var(--text-soft);line-height:1.7}
  .clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .clamp-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}

  /* ============ Badges & labels ============ */
  .badge{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:4px 11px;font-size:12.5px;font-weight:600;line-height:1.6}
  .badge-brand{background:var(--brand-light);color:var(--brand-dark)}
  .badge-teal{background:var(--timing-light);color:#0A7A6E}
  .badge-orange{background:var(--track-light);color:#C25413}
  .badge-plain{background:#EFF2F6;color:var(--text-soft);font-weight:500}

  /* ============ Section headings ============ */
  .sec-title{position:relative;padding-left:14px;font-size:clamp(22px,2.4vw,28px);font-weight:700;line-height:1.35;color:var(--text);margin:0}
  .sec-title::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:2px;background:var(--brand)}
  .sec-sub{font-size:15px;color:var(--text-soft);margin-top:12px;max-width:720px}
  .hairline{height:1px;background:var(--line);border:0;margin:0}

  /* ============ Breadcrumb ============ */
  .crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--text-mute)}
  .crumb a{color:var(--text-soft)}
  .crumb a:hover{color:var(--brand)}
  .crumb .sep{color:#C4CDD8}
  .crumb .now{color:var(--text-soft);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  @media (max-width:520px){ .crumb .now{max-width:180px} }

  /* ============ Article ============ */
  .article-hero{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-card);padding:28px 24px}
  @media (min-width:768px){ .article-hero{padding:40px 44px} }
  .article-shell{max-width:760px;margin:0 auto}
  .article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:13.5px;color:var(--text-mute)}
  .article-meta .mi{display:inline-flex;align-items:center;gap:7px}
  .article-meta i{color:var(--brand);font-size:12.5px}
  .share-btn{width:34px;height:34px;border-radius:999px;border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;color:var(--text-soft);font-size:13px}
  .share-btn:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-light)}

  .cms-article-body{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-card);
    padding:26px 20px;font-size:16px;line-height:1.9;color:var(--text)}
  @media (min-width:768px){ .cms-article-body{padding:44px 52px} }
  .cms-article-body > *:first-child{margin-top:0}
  .cms-article-body p{margin:0 0 1.35em;line-height:1.9;color:var(--text)}
  .cms-article-body h2{position:relative;padding-left:14px;margin:40px 0 16px;font-size:clamp(19px,2vw,23px);font-weight:700;line-height:1.45;color:var(--text)}
  .cms-article-body h2::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:2px;background:var(--brand)}
  .cms-article-body h3{margin:30px 0 12px;font-size:20px;font-weight:600;line-height:1.5;color:var(--text)}
  .cms-article-body h4{margin:24px 0 10px;font-size:17px;font-weight:600;color:var(--text)}
  .cms-article-body ul,.cms-article-body ol{margin:0 0 1.35em;padding-left:0;list-style:none}
  .cms-article-body ul li{position:relative;padding-left:20px;margin-bottom:10px;line-height:1.85}
  .cms-article-body ul li::before{content:"";position:absolute;left:2px;top:.68em;width:7px;height:7px;border-radius:2px;background:var(--brand)}
  .cms-article-body ol{counter-reset:item}
  .cms-article-body ol li{position:relative;padding-left:30px;margin-bottom:10px;counter-increment:item}
  .cms-article-body ol li::before{content:counter(item);position:absolute;left:0;top:.32em;width:20px;height:20px;border-radius:6px;background:var(--brand-light);color:var(--brand-dark);
    font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center}
  .cms-article-body blockquote{margin:22px 0;padding:16px 20px;background:#F7F9FC;border-left:3px solid var(--timing);border-radius:0 10px 10px 0;color:var(--text-soft)}
  .cms-article-body blockquote p:last-child{margin-bottom:0}
  .cms-article-body img{border-radius:12px;border:1px solid var(--line);margin:22px auto}
  .cms-article-body figcaption{font-size:13px;color:var(--text-mute);text-align:center;margin-top:-12px;margin-bottom:22px}
  .cms-article-body a{color:var(--brand);border-bottom:1px solid rgba(12,77,162,.35)}
  .cms-article-body a:hover{border-bottom-color:var(--brand)}
  .cms-article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14.5px}
  .cms-article-body th,.cms-article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left}
  .cms-article-body th{background:#F7F9FC;font-weight:600;color:var(--text)}
  .cms-article-body tr:nth-child(even) td{background:#FCFDFE}
  .cms-article-body hr{border:0;height:1px;background:var(--line);margin:32px 0}
  .cms-article-body code{background:#F2F5F9;border:1px solid var(--line);border-radius:6px;padding:1px 6px;font-size:14px}
  .cms-empty{background:#fff;border:1px dashed #CBD6E4;border-radius:var(--radius-card);padding:56px 24px;text-align:center;color:var(--text-soft)}
  .cms-empty i{font-size:30px;color:#B9C6D6}

  /* ============ FAQ ============ */
  .faq-item{border-bottom:1px solid var(--line)}
  .faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;
    padding:18px 2px;font-size:16.5px;font-weight:600;color:var(--text);transition:color .18s ease}
  .faq-q:hover{color:var(--brand)}
  .faq-q[aria-expanded="true"]{color:var(--brand)}
  .faq-ico{flex:0 0 auto;width:26px;height:26px;border-radius:999px;border:1px solid var(--line);color:var(--brand);
    display:inline-flex;align-items:center;justify-content:center;font-size:12px;transition:transform .2s ease,background-color .2s ease}
  .faq-q[aria-expanded="true"] .faq-ico{transform:rotate(180deg);background:var(--brand-light)}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease}
  .faq-a-inner{padding:0 2px 20px;font-size:15px;color:var(--text-soft);line-height:1.85}

  /* ============ Tags & related ============ */
  .tag{display:inline-flex;align-items:center;border-radius:999px;border:1px solid var(--line);background:#fff;
    padding:6px 14px;font-size:13.5px;color:var(--text-soft)}
  .tag:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-light)}
  .thumb{aspect-ratio:16/10;width:100%;object-fit:cover;border-radius:12px;border:1px solid var(--line);background:#EDF1F6}

  /* ============ CTA band ============ */
  .cta-band{background:var(--brand-deep);color:#fff;border-radius:var(--radius-card);padding:34px 24px}
  @media (min-width:768px){ .cta-band{padding:44px 52px} }
  .cta-band h2{font-size:clamp(21px,2.4vw,26px);font-weight:700;line-height:1.4;margin:0}
  .cta-band p{color:#B9C7D8;font-size:15px;margin:12px 0 0;max-width:640px}

  /* ============ Footer ============ */
  .site-footer{background:var(--brand-deep);color:#C7D3E1;font-size:14px;line-height:1.8;margin-top:24px}
  .site-footer p{margin:0;color:#9AA8B8;font-size:13.5px}
  .footer-title{font-size:15px;font-weight:600;color:#fff;margin:0 0 16px}
  .footer-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;font-size:13.5px;color:#9AA8B8}
  .footer-list a{color:#9AA8B8}
  .footer-list a:hover{color:#fff}
  .footer-bottom{margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
    display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;font-size:13px;color:#8093A8}

  /* ============ Mobile bottom tab ============ */
  .mobile-tab{position:fixed;left:0;right:0;bottom:0;z-index:70;background:#fff;border-top:1px solid var(--line);
    box-shadow:0 -8px 20px -14px rgba(12,77,162,.35);padding-bottom:env(safe-area-inset-bottom)}
  .mobile-tab-inner{display:grid;grid-template-columns:repeat(4,1fr);height:64px}
  .tab-item{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:11.5px;color:var(--text-mute);position:relative}
  .tab-item i{font-size:16px}
  .tab-item.active{color:var(--brand);font-weight:600}
  .tab-item.active::after{content:"";position:absolute;top:6px;width:5px;height:5px;border-radius:999px;background:var(--brand)}
  @media (min-width:768px){ .mobile-tab{display:none} }

/* roulang page: category1 */
:root{
  --brand:#0C4DA2;
  --brand-dark:#0A3A78;
  --ink-dark:#08213F;
  --brand-light:#E6EEF9;
  --teal:#0E9E8F;
  --orange:#F2701E;
  --bg:#F5F7FA;
  --card:#FFFFFF;
  --line:#E3E8EF;
  --text:#0E1B2C;
  --muted:#5B6B7F;
  --faint:#8A98A8;
  --radius-card:14px;
  --radius-btn:10px;
  --shadow-card:0 1px 2px rgba(14,27,44,.04), 0 8px 24px -12px rgba(12,77,162,.18);
  --font-stack:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-stack);
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums;letter-spacing:-0.02em}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding-left:16px;padding-right:16px}
@media (min-width:768px){.container-x{padding-left:24px;padding-right:24px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px -10px rgba(12,77,162,.24)}
.logo-mark{
  width:38px;height:38px;border-radius:10px;flex:0 0 auto;
  background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:17px;
}
.logo-text{font-size:17px;font-weight:700;letter-spacing:-0.01em;color:var(--text)}
.nav-link{
  display:inline-flex;align-items:center;
  padding:9px 14px;margin:0 2px;
  font-size:15px;font-weight:500;color:var(--muted);
  border-radius:8px;position:relative;
  transition:color .18s ease, background-color .18s ease;
}
.nav-link:hover{color:var(--brand);background:var(--brand-light)}
.nav-link:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.nav-link.active{color:var(--brand);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;
  height:2px;background:var(--brand);border-radius:2px;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .12s ease;
}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:var(--brand-light)}
.btn-ghost:active{transform:translateY(1px)}
.btn-teal{background:var(--teal);color:#fff}
.btn-teal:hover{background:#0B8174}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-block{width:100%}

/* ---------- badges / tags ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  background:var(--brand-light);color:var(--brand-dark);
  font-size:12.5px;font-weight:600;line-height:1.6;
}
.badge-teal{background:rgba(14,158,143,.12);color:#0A7568}
.badge-orange{background:rgba(242,112,30,.12);color:#B8500F}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 12px;border-radius:999px;
  border:1px solid var(--line);background:#fff;
  font-size:13px;color:var(--muted);
}

/* ---------- cards ---------- */
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  padding:24px;
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.card:hover{transform:translateY(-2px);border-color:rgba(12,77,162,.35)}

.stat-card{
  position:relative;overflow:hidden;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);padding:22px 20px 20px;
}
.stat-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--brand);
}
.stat-card .stat-num{
  font-size:clamp(28px,3vw,36px);font-weight:700;line-height:1.1;
  font-variant-numeric:tabular-nums;letter-spacing:-0.02em;color:var(--ink-dark);
}
.stat-card .stat-unit{font-size:14px;font-weight:600;color:var(--brand);margin-left:4px}
.stat-card .stat-label{margin-top:8px;font-size:15px;font-weight:600;color:var(--text)}
.stat-card .stat-note{margin-top:4px;font-size:13px;line-height:1.7;color:var(--faint)}

.dark-stat{background:transparent;border-color:rgba(255,255,255,.16);box-shadow:none}
.dark-stat::before{background:var(--teal)}
.dark-stat .stat-num{color:#fff}
.dark-stat .stat-unit{color:#7FD9CF}
.dark-stat .stat-label{color:#E8EEF7}
.dark-stat .stat-note{color:#9AA8B8}

.point-idx{
  flex:0 0 auto;width:38px;height:38px;border-radius:10px;
  background:var(--brand-light);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:-0.02em;
}

/* ---------- section titles ---------- */
.section-eyebrow{
  font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--brand);text-transform:uppercase;
}
.section-title{
  position:relative;padding-left:14px;
  font-size:clamp(22px,2.4vw,28px);font-weight:700;line-height:1.35;letter-spacing:-0.01em;
}
.section-title::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:2px;background:var(--brand);
}
.section-title-light{color:#fff}
.section-title-light::before{background:var(--teal)}
.section-desc{margin-top:14px;font-size:15.5px;line-height:1.85;color:var(--muted);max-width:760px}

/* ---------- zigzag ---------- */
.zigzag-item + .zigzag-item{margin-top:64px}
@media (min-width:1024px){.zigzag-item + .zigzag-item{margin-top:88px}}
.zigzag-num{
  font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--brand);
  font-variant-numeric:tabular-nums;
}
.zigzag-list li{
  position:relative;padding-left:18px;margin-top:10px;
  font-size:14.5px;line-height:1.8;color:var(--muted);
}
.zigzag-list li::before{
  content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;border-radius:2px;background:var(--brand-light);
  border:1px solid var(--brand);
}
.media-frame{
  border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--line);background:#fff;box-shadow:var(--shadow-card);
}
.media-frame img{width:100%;aspect-ratio:16/10;object-fit:cover}

/* ---------- grid lines ---------- */
.grid-panel{
  background-image:linear-gradient(to right,rgba(12,77,162,.07) 1px,transparent 1px),
                   linear-gradient(to bottom,rgba(12,77,162,.07) 1px,transparent 1px);
  background-size:48px 48px;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background-color:#fff;
}

/* ---------- faq ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 2px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:16.5px;font-weight:600;color:var(--text);line-height:1.6;
  transition:color .18s ease;
}
.faq-q:hover{color:var(--brand)}
.faq-q:focus-visible{outline:2px solid var(--brand);outline-offset:-2px;border-radius:8px}
.faq-item.open .faq-q{color:var(--brand)}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  border:1px solid var(--line);color:var(--muted);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;transition:transform .2s ease,background-color .2s ease,color .2s ease;
}
.faq-item.open .faq-icon{transform:rotate(180deg);background:var(--brand-light);color:var(--brand);border-color:var(--brand-light)}
.faq-panel{max-height:0;overflow:hidden;transition:max-height .22s ease}
.faq-panel p{padding:0 2px 22px;font-size:15px;line-height:1.9;color:var(--muted);max-width:860px}

/* ---------- form ---------- */
.form-label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--text)}
.form-label .req{color:var(--orange);margin-left:2px}
.form-input,.form-select,.form-textarea{
  width:100%;border:1px solid var(--line);border-radius:10px;background:#fff;
  padding:0 14px;height:46px;font-size:15px;color:var(--text);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.form-textarea{height:auto;min-height:110px;padding:12px 14px;line-height:1.8;resize:vertical}
.form-input::placeholder,.form-textarea::placeholder{color:var(--faint)}
.form-input:focus,.form-select:focus,.form-textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(12,77,162,.15);
}
.form-hint{margin-top:6px;font-size:12.5px;color:var(--faint)}
.form-alert{
  display:none;margin-top:18px;padding:12px 16px;border-radius:10px;font-size:14px;line-height:1.7;
}
.form-alert.ok{display:block;background:rgba(14,158,143,.1);color:#0A7568;border:1px solid rgba(14,158,143,.3)}
.form-alert.err{display:block;background:rgba(242,112,30,.1);color:#B8500F;border:1px solid rgba(242,112,30,.3)}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-dark);color:#9AA8B8}
.footer-title{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-list li{font-size:13.5px;line-height:1.85;margin-bottom:10px;color:#9AA8B8}
.footer-list a{color:#9AA8B8;transition:color .18s ease}
.footer-list a:hover{color:#fff}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;
  font-size:13px;color:#7C8B9C;
}

/* ---------- mobile tabbar ---------- */
.mobile-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:60;
  display:flex;background:#fff;border-top:1px solid var(--line);
  box-shadow:0 -6px 20px -8px rgba(14,27,44,.18);
  padding-bottom:env(safe-area-inset-bottom);
}
.tab-item{
  flex:1 1 0;min-width:0;height:58px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:11.5px;color:var(--faint);position:relative;
}
.tab-item i{font-size:16px}
.tab-item.active{color:var(--brand)}
.tab-item.active::before{
  content:"";position:absolute;top:4px;width:5px;height:5px;border-radius:50%;background:var(--brand);
}
@media (min-width:768px){.mobile-tabbar{display:none}}
@media (max-width:767px){body{padding-bottom:74px}}

/* ---------- misc ---------- */
.divider{height:1px;background:var(--line);border:0}
.progress-track{height:8px;border-radius:999px;background:var(--brand-light);overflow:hidden}
.progress-bar{height:100%;border-radius:999px;background:var(--brand)}
.progress-bar.teal{background:var(--teal)}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand);
  transition:gap .18s ease,color .18s ease;
}
.link-arrow:hover{gap:10px;color:var(--brand-dark)}
.link-arrow:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.check-list li{
  position:relative;padding-left:26px;margin-top:12px;
  font-size:15px;line-height:1.8;color:var(--text);
}
.check-list li::before{
  content:"\2713";position:absolute;left:0;top:0;
  width:18px;height:18px;border-radius:6px;background:var(--brand-light);color:var(--brand);
  font-size:11px;display:flex;align-items:center;justify-content:center;line-height:1;
}

/* roulang page: category2 */
:root{
  --brand:#0C4DA2;
  --brand-dark:#0A3A78;
  --brand-deep:#08213F;
  --brand-light:#E6EEF9;
  --teal:#0E9E8F;
  --accent:#F2701E;
  --bg:#F5F7FA;
  --card:#FFFFFF;
  --line:#E3E8EF;
  --ink:#0E1B2C;
  --ink-2:#5B6B7F;
  --ink-3:#8A98A8;
  --radius-card:14px;
  --radius-btn:10px;
  --shadow-card:0 1px 2px rgba(14,27,44,.04), 0 8px 24px -12px rgba(12,77,162,.18);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-sans);
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  padding-bottom:76px;
}
@media (min-width:768px){ body{padding-bottom:0;} }
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand);}
button,input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.num{font-variant-numeric:tabular-nums;letter-spacing:-0.02em;}

.container-x{max-width:1200px;margin:0 auto;padding:0 16px;}
@media (min-width:768px){ .container-x{padding:0 24px;} }

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px -14px rgba(12,77,162,.45);}
.logo-mark{
  width:40px;height:40px;border-radius:12px;background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:17px;flex:none;
}
.logo-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.2px;white-space:nowrap;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:70px;
  padding:0 14px;font-size:15px;font-weight:500;color:var(--ink-2);
  transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--brand);background:var(--brand-light);}
.nav-link.active{color:var(--brand);font-weight:700;}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;
  background:var(--brand);border-radius:2px;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .12s ease,box-shadow .18s ease;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-dark);color:#fff;}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark);}
.btn-light{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.34);}
.btn-light:hover{background:#fff;color:var(--brand-deep);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn[disabled]{opacity:.5;pointer-events:none;}

/* 通用标题 */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;
  border-radius:999px;background:var(--brand-light);color:var(--brand);
  font-size:13px;font-weight:600;letter-spacing:.4px;
}
.sec-title{position:relative;padding-left:14px;}
.sec-title::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:26px;
  border-radius:2px;background:var(--brand);
}
h1{font-size:clamp(26px,3.2vw,42px);line-height:1.28;font-weight:700;letter-spacing:-.4px;margin:0;}
h2{font-size:clamp(22px,2.2vw,28px);line-height:1.35;font-weight:700;margin:0;letter-spacing:-.2px;}
h3{font-size:20px;line-height:1.5;font-weight:600;margin:0;}
.lead{font-size:clamp(15px,1.15vw,17px);line-height:1.9;color:var(--ink-2);}
.muted{color:var(--ink-2);font-size:14px;line-height:1.8;}
.tiny{color:var(--ink-3);font-size:13px;line-height:1.7;}

/* 卡片 */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);padding:24px;position:relative;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.card:hover{transform:translateY(-2px);border-color:#c9dcf4;}
.card-top-line::before{
  content:"";position:absolute;left:0;right:0;top:0;height:3px;
  background:var(--brand);border-radius:14px 14px 0 0;
}
.card-idx{
  font-size:13px;font-weight:700;color:var(--brand);letter-spacing:.08em;
  font-variant-numeric:tabular-nums;
}
.card h3{font-size:17px;margin-top:10px;}
.card p{margin:8px 0 0;font-size:14px;line-height:1.75;color:var(--ink-2);}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  background:var(--brand-light);color:var(--brand);font-size:12px;font-weight:600;
}
.tag-teal{background:#E2F5F2;color:#0A7A6E;}
.tag-orange{background:#FDEDE2;color:#C2540F;}

/* 页面头图 */
.hero-media{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-card);background:#fff;
}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.hero-media .badge-float{
  position:absolute;left:16px;bottom:16px;background:rgba(8,33,63,.9);color:#fff;
  border-radius:10px;padding:8px 14px;font-size:13px;font-weight:600;
}

/* 指标条 */
.metric-strip{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:#fff;
}
@media (max-width:640px){ .metric-strip{grid-template-columns:1fr;} }
.metric-cell{padding:20px 22px;border-right:1px solid var(--line);}
.metric-strip .metric-cell:last-child{border-right:none;}
@media (max-width:640px){ .metric-cell{border-right:none;border-bottom:1px solid var(--line);} .metric-strip .metric-cell:last-child{border-bottom:none;} }
.metric-value{font-size:32px;font-weight:700;color:var(--brand);line-height:1.2;font-variant-numeric:tabular-nums;letter-spacing:-0.02em;}
.metric-value span{font-size:15px;font-weight:600;color:var(--ink-2);margin-left:4px;}

/* 时间线 */
.timeline{position:relative;margin-top:8px;}
.tl-item{position:relative;padding:0 0 34px 64px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:19px;top:46px;bottom:6px;width:2px;background:var(--line);
}
.tl-item:last-child::before{display:none;}
.tl-dot{
  position:absolute;left:0;top:0;width:40px;height:40px;border-radius:999px;
  background:#fff;border:2px solid var(--brand);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;
}
.tl-body{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:20px 22px;box-shadow:var(--shadow-card);}
.tl-body h3{font-size:17px;}
.tl-body p{margin:8px 0 0;font-size:14px;line-height:1.78;color:var(--ink-2);}
.tl-meta{margin-top:12px;display:flex;flex-wrap:wrap;gap:8px;}
@media (max-width:640px){
  .tl-item{padding-left:54px;}
  .tl-item::before{left:17px;}
  .tl-dot{width:36px;height:36px;font-size:13px;}
}

/* 双列清单 */
.check-list{list-style:none;margin:0;padding:0;}
.check-list li{position:relative;padding:12px 0 12px 28px;border-bottom:1px dashed var(--line);font-size:15px;color:var(--ink);}
.check-list li:last-child{border-bottom:none;}
.check-list li::before{
  content:"";position:absolute;left:4px;top:22px;width:7px;height:7px;border-radius:2px;background:var(--brand);
}
.check-list li em{font-style:normal;color:var(--ink-2);font-size:14px;display:block;margin-top:2px;}

/* 对比表 */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-card);background:#fff;box-shadow:var(--shadow-card);}
table.cmp{width:100%;border-collapse:collapse;min-width:620px;}
table.cmp th,table.cmp td{padding:14px 18px;text-align:left;font-size:14px;border-bottom:1px solid var(--line);}
table.cmp thead th{font-size:13px;font-weight:700;color:var(--ink-2);background:#FAFBFD;letter-spacing:.3px;}
table.cmp tbody tr:last-child td{border-bottom:none;}
table.cmp td:first-child{font-weight:600;color:var(--ink);}
table.cmp .col-new{color:var(--brand);font-weight:600;background:#F6F9FE;}

/* FAQ */
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 4px;background:none;border:none;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--ink);transition:color .18s ease;
}
.faq-q:hover{color:var(--brand);}
.faq-q[aria-expanded="true"]{color:var(--brand);}
.faq-icon{
  flex:none;width:26px;height:26px;border-radius:999px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--brand);
  font-size:12px;transition:transform .2s ease,background .2s ease;
}
.faq-q[aria-expanded="true"] .faq-icon{transform:rotate(180deg);background:var(--brand-light);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease;}
.faq-a p{margin:0 44px 20px 4px;font-size:14.5px;line-height:1.85;color:var(--ink-2);}

/* CTA */
.cta-band{background:var(--brand-deep);color:#fff;border-radius:var(--radius-card);padding:40px 28px;}
.cta-band h2{color:#fff;}
.cta-band p{color:#B9C7DA;font-size:15px;line-height:1.85;margin:12px 0 0;}

/* 页脚 */
.site-footer{background:var(--brand-deep);color:#B9C7DA;margin-top:80px;font-size:14px;}
.site-footer p{line-height:1.85;color:#9AA8B8;font-size:13.5px;}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin:0 0 16px;letter-spacing:.3px;}
.footer-list{list-style:none;margin:0;padding:0;}
.footer-list li{padding:5px 0;color:#9AA8B8;font-size:13.5px;}
.footer-list a{color:#9AA8B8;}
.footer-list a:hover{color:#fff;}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:#8697AC;
}

/* 移动底部 Tab */
.mobile-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;background:#fff;
  border-top:1px solid var(--line);display:flex;
  padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -8px 24px -16px rgba(12,77,162,.55);
}
@media (min-width:768px){ .mobile-tabbar{display:none;} }
.tab-item{
  position:relative;flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:2px;height:58px;padding-top:6px;font-size:11px;color:var(--ink-3);font-weight:500;
}
.tab-item i{font-size:17px;}
.tab-item.active{color:var(--brand);font-weight:700;}
.tab-item.active::before{
  content:"";position:absolute;top:3px;width:4px;height:4px;border-radius:999px;background:var(--brand);
}

.section-pad{padding:56px 0;}
@media (min-width:768px){ .section-pad{padding:80px 0;} }
.grid-line{
  background-image:linear-gradient(to right,rgba(12,77,162,.07) 1px,transparent 1px);
  background-size:64px 100%;
}

/* roulang page: category3 */
:root{
  --brand:#0C4DA2;
  --brand-deep:#0A3A78;
  --brand-ink:#08213F;
  --brand-soft:#E6EEF9;
  --jade:#0E9E8F;
  --jade-soft:#E3F5F2;
  --flame:#F2701E;
  --page:#F5F7FA;
  --card:#FFFFFF;
  --line:#E3E8EF;
  --line-strong:#C9D6E6;
  --text:#0E1B2C;
  --text-sub:#5B6B7F;
  --text-mute:#8A98A8;
  --radius-card:14px;
  --radius-btn:10px;
  --shadow-card:0 1px 2px rgba(14,27,44,.04),0 8px 24px -12px rgba(12,77,162,.18);
  --shadow-lift:0 2px 4px rgba(14,27,44,.05),0 16px 32px -14px rgba(12,77,162,.26);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--page);
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{font-weight:600;letter-spacing:-0.01em;color:var(--text)}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.num{font-variant-numeric:tabular-nums;letter-spacing:-0.02em}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

.container-x{width:100%;max-width:1200px;margin:0 auto;padding-left:16px;padding-right:16px}
@media (min-width:768px){.container-x{padding-left:24px;padding-right:24px}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px -14px rgba(12,77,162,.45)}
.logo-mark{
  width:36px;height:36px;border-radius:10px;background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:16px;flex:none;
}
.logo-text{font-size:16px;font-weight:700;color:var(--text);letter-spacing:-0.01em;white-space:nowrap}
@media (min-width:1024px){.logo-text{font-size:17px}}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:38px;
  padding:0 14px;margin:0 2px;border-radius:8px;
  font-size:15px;color:var(--text-sub);
  transition:color .18s ease,background-color .18s ease;
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft)}
.nav-link.active{color:var(--brand);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-3px;height:2px;
  background:var(--brand);border-radius:2px;
}
/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  border:1px solid transparent;font-size:15px;font-weight:600;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .12s ease,box-shadow .18s ease;
  cursor:pointer;white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-deep)}
.btn-hot:hover{background:var(--flame);border-color:var(--flame)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:var(--brand-soft)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-block{width:100%}
.btn:disabled,.btn[disabled]{opacity:.5;cursor:not-allowed}

/* ---------- 徽章与标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);
  font-size:13px;font-weight:600;letter-spacing:.01em;
}
.badge-jade{background:var(--jade-soft);color:#0A7A6E}
.badge-line{background:#fff;border:1px solid var(--line);color:var(--text-sub);font-weight:500}

/* ---------- Hero ---------- */
.hero-wrap{position:relative;background:#fff;border-bottom:1px solid var(--line);overflow:hidden}
.hero-grid-bg{
  position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(#EBF0F7 1px,transparent 1px),linear-gradient(90deg,#EBF0F7 1px,transparent 1px);
  background-size:34px 34px;
  opacity:.7;
  mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),transparent 78%);
  -webkit-mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),transparent 78%);
}
.hero-inner{position:relative;z-index:1}
.hero-h1{
  font-size:clamp(27px,3.4vw,44px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:-0.02em;
}
.hero-lead{font-size:16px;line-height:1.85;color:var(--text-sub);max-width:36em}
.hero-points li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:15px;color:var(--text-sub);line-height:1.7;margin-bottom:10px;
}
.hero-points i{color:var(--jade);margin-top:5px;font-size:13px}
.trust-line{
  display:flex;flex-wrap:wrap;gap:10px 14px;align-items:center;
  font-size:13px;color:var(--text-mute);
}
.trust-line span{display:inline-flex;align-items:center;gap:14px}
.trust-line span::after{content:"";width:1px;height:12px;background:var(--line-strong)}
.trust-line span:last-child::after{display:none}
.hero-figure{
  border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-card);background:#fff;
}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-tag{
  position:absolute;left:16px;bottom:16px;
  background:rgba(8,33,63,.88);color:#fff;border-radius:10px;
  padding:12px 16px;font-size:13px;line-height:1.6;backdrop-filter:none;
}
.hero-tag b{display:block;font-size:20px;font-variant-numeric:tabular-nums;letter-spacing:-0.02em}

/* ---------- 板块 ---------- */
.section{padding:56px 0}
@media (min-width:768px){.section{padding:88px 0}}
.section-head{max-width:760px}
.h2{
  position:relative;font-size:clamp(22px,2.2vw,28px);line-height:1.35;font-weight:700;
  padding-left:16px;
}
.h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  border-radius:2px;background:var(--brand);
}
.section-sub{margin-top:14px;font-size:15.5px;color:var(--text-sub);line-height:1.85}

/* ---------- 卡片 ---------- */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lift);border-color:var(--line-strong)}
.card:hover .card-title{color:var(--brand)}
.card-title{font-size:17px;font-weight:600;transition:color .18s ease}
.card-desc{font-size:14px;line-height:1.75;color:var(--text-sub)}

/* 指标卡 */
.metric-card{
  position:relative;overflow:hidden;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);padding:22px 20px 20px;box-shadow:var(--shadow-card);
}
.metric-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--brand)}
.metric-card.is-jade::before{background:var(--jade)}
.metric-index{
  font-size:12px;font-weight:700;color:var(--text-mute);
  font-variant-numeric:tabular-nums;letter-spacing:.08em;
}
.metric-value{
  font-size:clamp(28px,3vw,38px);font-weight:700;line-height:1.1;color:var(--text);
  font-variant-numeric:tabular-nums;letter-spacing:-0.02em;
}
.metric-value small{font-size:16px;font-weight:600;margin-left:3px;color:var(--text-sub)}
.metric-name{margin-top:8px;font-size:15px;font-weight:600;color:var(--text)}
.metric-note{margin-top:6px;font-size:13px;line-height:1.7;color:var(--text-mute)}
.metric-trend{
  position:absolute;right:16px;top:16px;font-size:12px;font-weight:600;
  padding:2px 8px;border-radius:999px;
}
.trend-up{background:var(--jade-soft);color:#0A7A6E}
.trend-hot{background:var(--flame-soft);color:#C25310}

/* ---------- 参数表 ---------- */
.table-shell{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);overflow:hidden;
}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.spec-table{width:100%;border-collapse:collapse;font-size:14.5px;min-width:720px}
.spec-table caption{text-align:left;padding:18px 20px 0;font-size:13px;color:var(--text-mute)}
.spec-table th,.spec-table td{
  padding:15px 18px;text-align:left;border-bottom:1px solid var(--line);
  vertical-align:top;line-height:1.65;
}
.spec-table thead th{
  background:#F1F5FA;color:var(--text-sub);font-size:13.5px;font-weight:600;
  letter-spacing:.02em;border-bottom:1px solid var(--line-strong);white-space:nowrap;
}
.spec-table tbody tr:nth-child(even){background:#FAFBFD}
.spec-table tbody th{
  font-weight:600;color:var(--text);font-size:14.5px;white-space:nowrap;
  background:transparent;
}
.spec-table tbody tr:last-child th,.spec-table tbody tr:last-child td{border-bottom:0}
.spec-mark{color:var(--brand);font-weight:600}
.spec-muted{color:var(--text-mute)}

/* ---------- 清单 ---------- */
.check-list li{
  display:flex;gap:12px;align-items:flex-start;padding:13px 0;
  border-bottom:1px dashed var(--line);font-size:15px;line-height:1.7;color:var(--text-sub);
}
.check-list li:last-child{border-bottom:0}
.check-list i{color:var(--brand);font-size:14px;margin-top:6px;flex:none}
.check-list b{color:var(--text);font-weight:600}
.panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 24px;box-shadow:var(--shadow-card);height:100%;
}
.panel-title{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:600}
.panel-icon{
  width:34px;height:34px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;flex:none;
}
.panel-icon.brand{background:var(--brand-soft);color:var(--brand)}
.panel-icon.jade{background:var(--jade-soft);color:#0A7A6E}

/* ---------- 场景卡 ---------- */
.scene-card{overflow:hidden;display:flex;flex-direction:column;height:100%}
.scene-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-bottom:1px solid var(--line)}
.scene-body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1}
.scene-body .card-desc{margin-top:10px}
.scene-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.scene-foot{margin-top:auto;padding-top:16px;font-size:14px;font-weight:600;color:var(--brand)}
.scene-foot i{font-size:12px;margin-left:6px;transition:transform .18s ease}
.scene-card:hover .scene-foot i{transform:translateX(3px)}

/* ---------- FAQ ---------- */
.faq-shell{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:6px 24px;box-shadow:var(--shadow-card)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;text-align:left;font-size:16.5px;font-weight:600;color:var(--text);
  transition:color .18s ease;
}
.faq-q:hover{color:var(--brand)}
.faq-q[aria-expanded="true"]{color:var(--brand)}
.faq-icon{
  width:26px;height:26px;border-radius:8px;flex:none;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand);font-size:13px;
  transition:transform .2s ease,background-color .2s ease;
}
.faq-q[aria-expanded="true"] .faq-icon{transform:rotate(45deg);background:var(--brand);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease}
.faq-item.open .faq-a{max-height:340px}
.faq-a p{padding:0 44px 20px 0;font-size:15px;line-height:1.85;color:var(--text-sub)}

/* ---------- 表单 ---------- */
.form-shell{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 24px;box-shadow:var(--shadow-card);
}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--text);margin-bottom:8px}
.field .req{color:var(--flame);margin-left:3px}
.field input,.field select,.field textarea{
  width:100%;height:46px;padding:0 14px;border:1px solid var(--line);
  border-radius:var(--radius-btn);background:#fff;font-size:15px;color:var(--text);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{height:104px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--text-mute)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 2px var(--brand-soft);
}
.form-tip{font-size:13px;color:var(--text-mute);line-height:1.7;margin-top:14px}
.alert{display:flex;gap:10px;align-items:flex-start;border-radius:var(--radius-btn);padding:12px 14px;font-size:14px;line-height:1.7;margin-bottom:16px}
.alert-ok{background:var(--jade-soft);color:#0A6B60;border:1px solid #BFE6E0}
.alert-warn{background:var(--flame-soft);color:#B54C10;border:1px solid #F6D2B8}
.hidden{display:none}

/* ---------- CTA 深色条 ---------- */
.cta-band{
  background:var(--brand-ink);color:#D5E1F0;border-radius:var(--radius-card);
  padding:34px 28px;
}
.cta-band h2{color:#fff}
.cta-band p{color:#9FB3C9;font-size:15px;line-height:1.85}
.cta-facts li{
  display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:#C0D0E3;
  line-height:1.75;margin-top:12px;
}
.cta-facts i{color:var(--jade);margin-top:6px;font-size:13px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-ink);color:#C9D6E6;font-size:14px;line-height:1.8}
.site-footer p{color:#9AA8B8;font-size:14px;line-height:1.8}
.footer-title{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-list li{color:#9AA8B8;font-size:14px;line-height:1.8;margin-bottom:10px}
.footer-list a{color:#9AA8B8;transition:color .18s ease}
.footer-list a:hover{color:#fff}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:#8A98A8;
}

/* ---------- 移动底部 Tab ---------- */
.mobile-tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:#fff;border-top:1px solid var(--line);
  box-shadow:0 -8px 24px -16px rgba(12,77,162,.5);
  display:grid;grid-template-columns:repeat(4,1fr);
  padding-bottom:env(safe-area-inset-bottom);
}
.tab-item{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:3px;height:60px;font-size:11.5px;color:var(--text-mute);
  transition:color .18s ease;
}
.tab-item i{font-size:17px;line-height:1}
.tab-item.active{color:var(--brand);font-weight:600}
.tab-dot{
  position:absolute;top:8px;right:calc(50% - 22px);
  width:5px;height:5px;border-radius:50%;background:var(--brand);
  opacity:0;transition:opacity .18s ease;
}
.tab-item.active .tab-dot{opacity:1}
@media (min-width:768px){.mobile-tabbar{display:none}}
@media (max-width:767.98px){body{padding-bottom:74px}}

/* 通用小工具 */
.divider{height:1px;background:var(--line);border:0;margin:0}
.dot-pattern{
  height:10px;
  background-image:radial-gradient(var(--line-strong) 1.2px,transparent 1.2px);
  background-size:12px 12px;
  opacity:.8;
}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);
}
.link-more i{font-size:12px;transition:transform .18s ease}
.link-more:hover i{transform:translateX(3px)}