/* roulang page: index */
:root{
  --brand:#12617F;
  --brand-dark:#0C475F;
  --brand-light:#E7F1F5;
  --pass:#2E9B86;
  --pass-light:#E4F4F0;
  --accent:#E1783C;
  --accent-dark:#C96327;
  --panel:#0B2E3C;
  --deep:#08222D;
  --bg:#F5F8FA;
  --card:#FFFFFF;
  --alt:#EEF4F7;
  --ink:#0E2733;
  --body:#45606E;
  --mute:#8497A0;
  --line:#E1EAEF;
  --line-strong:#CBD9E1;
  --ok:#2E9B86;
  --warn:#D9822B;
  --danger:#C6453C;
  --r-card:16px;
  --r-panel:20px;
  --r-nav:18px;
  --r-sm:12px;
  --r-btn:10px;
  --sh1:0 1px 2px rgba(12,45,60,.05);
  --sh2:0 6px 18px rgba(12,45,60,.07);
  --sh3:0 16px 40px rgba(12,45,60,.10);
  --font: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 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:1.75;
  color:var(--body);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{ margin:0; }
ul,ol{ padding:0; list-style:none; }
img{ display:block; max-width:100%; height:auto; }
a{ color:var(--brand); text-decoration:none; transition:color .18s ease, text-decoration-color .18s ease; }
a:hover{ color:var(--brand-dark); text-decoration:underline; text-underline-offset:3px; }
button{ font-family:inherit; }
strong,b{ font-variant-numeric:tabular-nums; }
:focus-visible{ outline:2px solid var(--brand); outline-offset:2px; border-radius:6px; }
::selection{ background:var(--brand-light); color:var(--brand-dark); }

.container{ width:100%; max-width:1200px; margin:0 auto; padding:0 24px; }

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:linear-gradient(90deg,var(--brand-light),rgba(231,241,245,.35));
  border-bottom:1px solid var(--line);
}
.topbar-inner{
  display:flex; align-items:center; gap:10px;
  min-height:34px; padding:6px 24px;
  font-size:13px; color:var(--brand-dark);
}
.topbar-inner svg{ flex:0 0 auto; }
.topbar-inner p{ margin:0; flex:1 1 auto; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.topbar-close{
  flex:0 0 auto; width:26px; height:26px; display:inline-flex;
  align-items:center; justify-content:center; border:0; border-radius:8px;
  background:transparent; color:var(--brand); cursor:pointer; transition:background .18s ease;
}
.topbar-close:hover{ background:rgba(18,97,127,.10); }
.topbar-close:active{ transform:translateY(1px); }
.topbar.is-hidden{ display:none; }

/* ---------- 卡片化导航 ---------- */
.site-header{ position:sticky; top:12px; z-index:60; padding:12px 0 0; }
.nav-panel{
  display:flex; align-items:center; gap:16px;
  background:rgba(255,255,255,.96);
  border:1px solid var(--line);
  border-radius:var(--r-nav);
  box-shadow:var(--sh2);
  padding:12px 16px;
  min-height:72px;
  transition:box-shadow .2s ease, background .2s ease;
}
.site-header.is-scrolled .nav-panel{
  box-shadow:var(--sh3);
  backdrop-filter:blur(8px);
  background:rgba(255,255,255,.95);
}
.brand{ display:flex; align-items:center; gap:12px; flex:0 0 auto; text-decoration:none; }
.brand:hover{ text-decoration:none; }
.brand-mark{
  width:44px; height:44px; border-radius:12px; flex:0 0 auto;
  background:linear-gradient(160deg,var(--brand),#0A4A62);
  display:inline-flex; align-items:center; justify-content:center;
  color:#fff; box-shadow:var(--sh2);
}
.brand-text{ display:flex; flex-direction:column; line-height:1.25; }
.brand-text strong{ font-size:16px; font-weight:700; color:var(--ink); letter-spacing:.01em; }
.brand-text small{ font-size:12px; color:var(--mute); }

.nav-cards{ display:flex; align-items:center; gap:4px; margin-left:auto; }
.nav-card{
  display:inline-flex; align-items:center; gap:8px;
  padding:9px 12px; border-radius:var(--r-sm);
  border:1px solid transparent;
  font-size:14px; font-weight:600; color:var(--body);
  white-space:nowrap; transition:all .18s ease;
}
.nav-card svg{ transition:transform .18s ease; color:var(--mute); }
.nav-card:hover{
  background:var(--brand-light); border-color:rgba(18,97,127,.30);
  color:var(--brand-dark); text-decoration:none;
}
.nav-card:hover svg{ transform:translateY(-2px); color:var(--brand); }
.nav-card.is-active{ background:var(--brand-light); border-color:rgba(18,97,127,.34); color:var(--brand-dark); }
.nav-card.is-active svg{ color:var(--brand); }

.nav-actions{ display:flex; align-items:center; gap:10px; flex:0 0 auto; }
.nav-toggle{
  display:none; width:44px; height:44px; border-radius:12px;
  border:1px solid var(--line-strong); background:#fff; color:var(--brand-dark);
  align-items:center; justify-content:center; cursor:pointer;
  transition:background .18s ease, border-color .18s ease;
}
.nav-toggle:hover{ background:var(--brand-light); border-color:rgba(18,97,127,.35); }
.nav-toggle:active{ transform:translateY(1px); }

.mobile-nav{ display:none; margin-top:10px; }
.mobile-nav.is-open{ display:block; }
.mobile-nav-inner{
  background:#fff; border:1px solid var(--line); border-radius:var(--r-nav);
  box-shadow:var(--sh3); padding:12px;
}
.mobile-nav a{
  display:flex; align-items:center; gap:10px;
  min-height:48px; padding:0 14px; border-radius:12px;
  font-size:15px; font-weight:600; color:var(--body);
  border:1px solid transparent;
}
.mobile-nav a:hover{ background:var(--brand-light); color:var(--brand-dark); text-decoration:none; }
.mobile-nav a.is-active{ background:var(--brand-light); border-color:rgba(18,97,127,.3); color:var(--brand-dark); }
.mobile-nav a .arrow{ margin-left:auto; color:var(--mute); }
.mobile-nav .mobile-cta{ margin-top:10px; }

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  min-height:46px; padding:0 24px; border-radius:var(--r-btn);
  font-size:15px; font-weight:600; line-height:1;
  border:1px solid transparent; cursor:pointer;
  transition:background .18s ease, box-shadow .18s ease, transform .12s ease, color .18s ease, border-color .18s ease;
  text-decoration:none;
}
.btn:hover{ text-decoration:none; }
.btn:active{ transform:translateY(1px); }
.btn-primary{ background:var(--accent); color:#fff; box-shadow:var(--sh1); }
.btn-primary:hover{ background:var(--accent-dark); color:#fff; box-shadow:var(--sh2); }
.btn-ghost{ background:#fff; color:var(--brand); border-color:var(--brand); }
.btn-ghost:hover{ background:var(--brand-light); color:var(--brand-dark); }
.btn-sm{ min-height:42px; padding:0 18px; font-size:14px; }
.btn-block{ width:100%; }
.btn:disabled{ opacity:.6; cursor:not-allowed; }

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

/* ---------- 通用板块 ---------- */
.section{ padding:96px 0; }
.section-alt{ background:var(--alt); }
.section-head{ max-width:720px; margin-bottom:44px; }
.eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  font-size:13px; font-weight:600; letter-spacing:.12em;
  color:var(--brand); margin-bottom:14px;
}
.eyebrow::before{ content:""; width:16px; height:3px; border-radius:2px; background:var(--brand); }
.section-head h2{ font-size:clamp(24px,3vw,34px); line-height:1.3; font-weight:700; color:var(--ink); }
.section-head p{ margin-top:14px; font-size:16px; color:var(--body); max-width:640px; }
.section-head-row{ display:flex; align-items:flex-end; justify-content:space-between; gap:24px; max-width:none; }

/* ---------- Hero ---------- */
.hero{ padding:72px 0 96px; position:relative; overflow:hidden; }
.hero::before{
  content:""; position:absolute; inset:0 auto auto 0; width:56%; height:60%;
  background:linear-gradient(160deg,var(--brand-light),rgba(231,241,245,0));
  pointer-events:none;
}
.hero-grid{ position:relative; display:grid; grid-template-columns:1.15fr .85fr; gap:56px; align-items:center; }
.hero-copy h1{
  font-size:clamp(30px,4.4vw,50px); line-height:1.18; font-weight:700;
  color:var(--ink); letter-spacing:-.01em; margin-bottom:20px;
}
.hero-sub{ font-size:17px; line-height:1.85; color:var(--body); max-width:600px; }
.hero-cta{ display:flex; flex-wrap:wrap; gap:14px; margin:32px 0 36px; }
.hero-stats{ display:flex; flex-wrap:wrap; gap:36px; }
.hero-stats li{ display:flex; flex-direction:column; }
.hero-stats strong{ font-size:30px; font-weight:700; color:var(--brand); line-height:1.1; }
.hero-stats span{ font-size:13px; color:var(--mute); margin-top:4px; }
.hero-media{ position:relative; }
.hero-media img{
  width:100%; aspect-ratio:4/3; object-fit:cover;
  border-radius:var(--r-panel); border:1px solid var(--line);
  box-shadow:var(--sh3); background:var(--brand-light);
}
.hero-float{
  position:absolute; left:-18px; bottom:-22px;
  display:flex; align-items:center; gap:12px;
  background:#fff; border:1px solid var(--line); border-radius:var(--r-sm);
  padding:14px 18px; box-shadow:var(--sh3); max-width:280px;
}
.hero-float .dot{
  width:10px; height:10px; border-radius:50%; background:var(--pass);
  box-shadow:0 0 0 4px var(--pass-light); flex:0 0 auto;
}
.hero-float strong{ display:block; font-size:14px; color:var(--ink); }
.hero-float small{ display:block; font-size:12px; color:var(--mute); }

/* ---------- 三步上手 ---------- */
.steps{ display:grid; grid-template-columns:repeat(3,1fr); gap:28px; }
.step-card{
  position:relative; background:#fff; border:1px solid var(--line);
  border-radius:var(--r-card); box-shadow:var(--sh2); padding:32px 28px;
  transition:box-shadow .18s ease, transform .18s ease;
}
.step-card:hover{ box-shadow:var(--sh3); transform:translateY(-2px); }
.step-num{
  display:inline-flex; align-items:center; justify-content:center;
  min-width:52px; height:38px; padding:0 12px; margin-bottom:18px;
  border-radius:10px; background:var(--brand-light); color:var(--brand);
  font-size:18px; font-weight:700; letter-spacing:.04em;
}
.step-icon{
  width:44px; height:44px; border-radius:12px; display:inline-flex;
  align-items:center; justify-content:center; margin-bottom:16px;
  background:var(--pass-light); color:var(--pass);
}
.step-card h3{ font-size:19px; font-weight:600; color:var(--ink); margin-bottom:10px; }
.step-card p{ font-size:15px; line-height:1.8; color:var(--body); }
.step-card .btn{ margin-top:20px; }
.steps .step-card:not(:last-child)::after{
  content:""; position:absolute; top:50%; right:-28px; width:28px; height:2px;
  background:repeating-linear-gradient(90deg,var(--line-strong) 0 6px,transparent 6px 12px);
}

/* ---------- 指标条 ---------- */
.metrics{ background:var(--panel); padding:44px 0; }
.metrics-inner{
  display:grid; grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.metric{ text-align:center; padding:0 12px; border-left:1px solid rgba(255,255,255,.14); }
.metric:first-child{ border-left:0; }
.metric strong{ display:block; font-size:32px; font-weight:700; color:#fff; line-height:1.1; }
.metric span{ display:block; margin-top:8px; font-size:14px; color:rgba(255,255,255,.68); }

/* ---------- 检查清单 ---------- */
.checklist{
  background:#fff; border:1px solid var(--line); border-radius:var(--r-card);
  box-shadow:var(--sh2); overflow:hidden;
}
.checklist-row{
  display:grid; grid-template-columns:1.05fr 1.9fr .85fr; gap:24px;
  align-items:center; padding:18px 28px; border-top:1px solid var(--line);
  font-size:15px; color:var(--body);
}
.checklist-row:first-child{ border-top:0; }
.checklist-head{
  background:var(--brand-light); color:var(--brand-dark);
  font-size:13px; font-weight:600; letter-spacing:.06em; padding:14px 28px;
}
.checklist-row > span:first-child{ font-weight:600; color:var(--ink); }
.checklist-row:nth-child(odd):not(.checklist-head){ background:#FBFDFE; }
.tag{
  display:inline-flex; align-items:center; gap:6px;
  padding:4px 12px; border-radius:999px; font-size:12px; font-weight:600;
  font-style:normal; background:var(--brand-light); color:var(--brand);
}
.tag-pass{ background:var(--pass-light); color:#1F7A69; }
.tag-warn{ background:#FCF1E3; color:#A9641A; }

/* ---------- 案例证明 ---------- */
.proof-grid{ display:grid; grid-template-columns:7fr 5fr; gap:24px; align-items:stretch; }
.proof-card{
  background:#fff; border:1px solid var(--line); border-radius:var(--r-card);
  box-shadow:var(--sh2); overflow:hidden; display:flex; flex-direction:column;
  transition:box-shadow .18s ease, transform .18s ease;
}
.proof-card:hover{ box-shadow:var(--sh3); transform:translateY(-2px); }
.proof-card img{ width:100%; object-fit:cover; background:var(--brand-light); }
.proof-large img{ aspect-ratio:16/9; }
.proof-body{ padding:28px; display:flex; flex-direction:column; gap:14px; flex:1; }
.proof-source{
  font-size:13px; font-weight:600; color:var(--brand);
  background:var(--brand-light); border-radius:999px; padding:4px 12px; align-self:flex-start;
}
.proof-quote{ font-size:16px; line-height:1.85; color:var(--ink); }
.proof-result{ margin-top:auto; display:flex; align-items:baseline; gap:10px; padding-top:14px; border-top:1px dashed var(--line-strong); }
.proof-result strong{ font-size:28px; font-weight:700; color:var(--brand); }
.proof-result span{ font-size:14px; color:var(--mute); }
.proof-side{ display:grid; grid-template-rows:1fr 1fr; gap:24px; }
.proof-small{ flex-direction:row; }
.proof-small img{ width:150px; flex:0 0 150px; height:100%; object-fit:cover; }
.proof-small .proof-body{ padding:22px; gap:10px; }
.proof-small .proof-quote{ font-size:15px; }
.proof-small .proof-result strong{ font-size:22px; }

/* ---------- FAQ ---------- */
.faq-grid{ display:grid; grid-template-columns:4fr 8fr; gap:48px; align-items:start; }
.faq-aside h2{ font-size:clamp(24px,3vw,32px); line-height:1.3; font-weight:700; color:var(--ink); }
.faq-aside p{ margin-top:16px; font-size:15px; line-height:1.85; }
.contact-card{
  margin-top:28px; background:#fff; border:1px solid var(--line);
  border-radius:var(--r-card); box-shadow:var(--sh2); padding:22px;
  display:flex; gap:14px; align-items:center;
}
.contact-card .contact-icon{
  width:44px; height:44px; flex:0 0 auto; border-radius:12px;
  background:var(--accent); color:#fff; display:inline-flex;
  align-items:center; justify-content:center;
}
.contact-card strong{ display:block; font-size:14px; color:var(--ink); }
.contact-card a{ font-size:15px; font-weight:600; }

.faq-list{ display:flex; flex-direction:column; gap:12px; }
.faq-item{
  background:#fff; border:1px solid var(--line); border-radius:var(--r-sm);
  overflow:hidden; transition:box-shadow .18s ease, border-color .18s ease;
}
.faq-item:hover{ box-shadow:var(--sh1); }
.faq-item.is-open{ border-color:rgba(18,97,127,.35); background:linear-gradient(90deg,rgba(231,241,245,.55),#fff 40%); }
.faq-q{
  width:100%; display:flex; align-items:center; gap:16px; text-align:left;
  padding:20px 24px; background:transparent; border:0; cursor:pointer;
  font-size:17px; font-weight:600; color:var(--ink); line-height:1.5;
}
.faq-item.is-open .faq-q{ padding-left:21px; border-left:3px solid var(--brand); }
.faq-q .plus{
  margin-left:auto; flex:0 0 auto; width:24px; height:24px; position:relative;
  transition:transform .2s ease;
}
.faq-q .plus::before,
.faq-q .plus::after{
  content:""; position:absolute; background:var(--brand); border-radius:2px;
  left:50%; top:50%; transform:translate(-50%,-50%);
}
.faq-q .plus::before{ width:14px; height:2px; }
.faq-q .plus::after{ width:2px; height:14px; transition:opacity .2s ease; }
.faq-item.is-open .faq-q .plus::after{ opacity:0; }
.faq-a{
  display:none; padding:0 24px 22px 24px;
  font-size:15px; line-height:1.8; color:var(--body); max-width:68ch;
}
.faq-item.is-open .faq-a{ display:block; }

/* ---------- 最新信息 ---------- */
.news-grid{ display:grid; grid-template-columns:1.25fr 1fr; gap:24px; align-items:start; }
.news-lead{
  display:flex; flex-direction:column; gap:14px;
  background:#fff; border:1px solid var(--line); border-radius:var(--r-card);
  box-shadow:var(--sh2); overflow:hidden; padding-bottom:26px;
  transition:box-shadow .18s ease, transform .18s ease; color:inherit;
}
.news-lead:hover{ box-shadow:var(--sh3); transform:translateY(-2px); text-decoration:none; color:inherit; }
.news-lead img{ width:100%; aspect-ratio:16/10; object-fit:cover; background:var(--brand-light); }
.news-lead .badge,
.news-lead h3,
.news-lead p,
.news-lead time{ margin-left:26px; margin-right:26px; }
.badge{
  display:inline-flex; align-items:center; align-self:flex-start;
  padding:4px 12px; border-radius:999px; font-size:12px; font-weight:600;
  background:var(--brand-light); color:var(--brand);
}
.badge-pass{ background:var(--pass-light); color:#1F7A69; }
.news-lead h3{ font-size:20px; font-weight:600; color:var(--ink); line-height:1.5; }
.news-lead p{ font-size:15px; color:var(--body); display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
.news-lead time{ font-size:14px; color:var(--mute); }

.news-list{ display:flex; flex-direction:column; gap:16px; }
.news-item{
  display:flex; gap:16px; padding:16px;
  background:#fff; border:1px solid var(--line); border-radius:var(--r-card);
  box-shadow:var(--sh1); color:inherit;
  transition:box-shadow .18s ease, transform .18s ease, border-color .18s ease;
}
.news-item:hover{ box-shadow:var(--sh2); transform:translateY(-2px); border-color:var(--line-strong); text-decoration:none; color:inherit; }
.news-thumb{
  width:96px; height:72px; flex:0 0 96px; object-fit:cover;
  border-radius:10px; border:1px solid var(--line); background:var(--brand-light);
}
.news-item-body{ display:flex; flex-direction:column; gap:6px; min-width:0; }
.news-item-body h3{
  font-size:16px; font-weight:600; color:var(--ink); line-height:1.5;
  display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden;
}
.news-item-body p{
  font-size:14px; color:var(--body); line-height:1.7;
  display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden;
}
.news-item-body time{ font-size:13px; color:var(--mute); }
.news-item-body .badge{ font-size:11px; padding:3px 10px; }

.empty-state{
  border:1px dashed var(--line-strong); border-radius:var(--r-card);
  background:#fff; padding:56px 24px; text-align:center;
  display:flex; flex-direction:column; align-items:center; gap:14px;
}
.empty-state .empty-icon{
  width:48px; height:48px; border-radius:14px; background:var(--brand-light);
  color:var(--brand); display:inline-flex; align-items:center; justify-content:center;
}
.empty-state p{ font-size:15px; color:var(--mute); }

/* ---------- CTA ---------- */
.cta-panel{
  background:var(--panel); border-radius:var(--r-panel);
  padding:48px; display:grid; grid-template-columns:7fr 5fr; gap:48px;
  color:rgba(255,255,255,.78); box-shadow:var(--sh3);
}
.cta-panel h2{ font-size:clamp(24px,3vw,32px); line-height:1.3; font-weight:700; color:#fff; }
.cta-points{ margin-top:26px; display:flex; flex-direction:column; gap:14px; }
.cta-points li{ display:flex; gap:12px; align-items:flex-start; font-size:15px; line-height:1.7; }
.cta-points svg{ flex:0 0 auto; margin-top:4px; color:#5FD0B4; }
.cta-form{ background:#fff; border-radius:var(--r-card); padding:28px; box-shadow:var(--sh2); }
.cta-form label{ display:block; font-size:14px; font-weight:600; color:var(--ink); margin-bottom:8px; }
.cta-form .field{ margin-bottom:16px; }
.cta-form input,
.cta-form select{
  width:100%; height:48px; padding:0 14px; border-radius:var(--r-btn);
  border:1px solid var(--line-strong); background:#fff; color:var(--ink);
  font-size:15px; font-family:inherit; transition:border-color .18s ease, box-shadow .18s ease;
}
.cta-form select{ appearance:none; background-image:linear-gradient(45deg,transparent 50%,var(--mute) 50%),linear-gradient(135deg,var(--mute) 50%,transparent 50%); background-position:calc(100% - 20px) 21px, calc(100% - 14px) 21px; background-size:6px 6px,6px 6px; background-repeat:no-repeat; }
.cta-form input:focus,
.cta-form select:focus{
  outline:none; border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(18,97,127,.15);
}
.cta-form .form-note{ margin-top:12px; font-size:12px; color:var(--mute); line-height:1.7; }

/* ---------- 页脚 ---------- */
.site-footer{ background:var(--deep); color:rgba(255,255,255,.72); margin-top:96px; }
.footer-top{
  display:grid; grid-template-columns:1.5fr 1fr 1fr 1fr; gap:40px;
  padding:64px 0 44px;
}
.footer-brand{ display:flex; flex-direction:column; gap:14px; }
.footer-brand .brand-mark{ box-shadow:none; }
.footer-brand strong{ color:#fff; font-size:16px; }
.footer-brand p{ font-size:14px; line-height:1.8; color:rgba(255,255,255,.66); max-width:320px; }
.footer-contact{ font-size:14px; color:rgba(255,255,255,.82); }
.footer-col h4{ font-size:14px; font-weight:600; color:#fff; margin-bottom:16px; }
.footer-col ul{ display:flex; flex-direction:column; gap:10px; }
.footer-col a{ font-size:14px; color:rgba(255,255,255,.72); }
.footer-col a:hover{ color:#fff; }
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 30px; display:flex; justify-content:space-between; gap:16px;
  font-size:13px; color:rgba(255,255,255,.55); flex-wrap:wrap;
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .section{ padding:80px 0; }
  .hero-grid{ gap:40px; }
  .cta-panel{ padding:40px; gap:36px; }
}

@media (max-width:1023px){
  .nav-cards{ display:none; }
  .nav-toggle{ display:inline-flex; }
  .nav-actions .btn-primary{ display:none; }
  .hero-grid{ grid-template-columns:1fr; gap:40px; }
  .hero-media img{ max-height:280px; }
  .hero-float{ left:16px; bottom:-18px; }
  .steps{ grid-template-columns:1fr; gap:18px; }
  .steps .step-card:not(:last-child)::after{ display:none; }
  .metrics-inner{ grid-template-columns:repeat(2,1fr); gap:28px; }
  .metric:nth-child(3){ border-left:0; }
  .proof-grid{ grid-template-columns:1fr; }
  .proof-side{ grid-template-rows:none; grid-template-columns:1fr 1fr; }
  .faq-grid{ grid-template-columns:1fr; gap:32px; }
  .news-grid{ grid-template-columns:1fr; }
  .cta-panel{ grid-template-columns:1fr; padding:36px; }
  .footer-top{ grid-template-columns:1fr 1fr; gap:32px; }
  .site-header{ top:8px; }
}

@media (max-width:767px){
  .container{ padding:0 20px; }
  .section{ padding:64px 0; }
  .hero{ padding:48px 0 72px; }
  .hero-stats{ gap:24px; }
  .hero-stats strong{ font-size:26px; }
  .brand-text strong{ font-size:14px; }
  .brand-text small{ display:none; }
  .nav-panel{ min-height:64px; padding:10px 12px; }
  .proof-small{ flex-direction:column; }
  .proof-small img{ width:100%; flex:none; aspect-ratio:16/9; }
  .metrics{ padding:36px 0; }
  .metric strong{ font-size:26px; }
  .cta-panel{ padding:28px 22px; }
  .cta-form{ padding:22px; }
  .footer-top{ grid-template-columns:1fr; padding:48px 0 32px; }
  .footer-bottom{ flex-direction:column; gap:8px; }
  .checklist-head{ display:none; }
  .checklist-row{ grid-template-columns:1fr; gap:6px; padding:20px; }
  .checklist-row > span::before{
    content:attr(data-label); display:block;
    font-size:12px; font-weight:600; color:var(--mute); margin-bottom:2px;
  }
  .checklist-row > span:first-child::before{ color:var(--mute); }
  .section-head{ margin-bottom:32px; }
  .section-head-row{ flex-direction:column; align-items:flex-start; gap:14px; }
  .news-lead .badge,
  .news-lead h3,
  .news-lead p,
  .news-lead time{ margin-left:20px; margin-right:20px; }
}

@media (max-width:520px){
  .hero-cta{ flex-direction:column; align-items:stretch; }
  .hero-cta .btn{ width:100%; }
  .news-item{ flex-direction:column; }
  .news-thumb{ width:100%; height:160px; flex:none; }
  .proof-side{ grid-template-columns:1fr; }
  .metrics-inner{ grid-template-columns:1fr; }
  .metric{ border-left:0; border-top:1px solid rgba(255,255,255,.14); padding-top:18px; }
  .metric:first-child{ border-top:0; padding-top:0; }
}

/* roulang page: category1 */
:root{
    --c-primary:#12617F;
    --c-primary-dark:#0C475F;
    --c-primary-soft:#E7F1F5;
    --c-green:#2E9B86;
    --c-green-soft:#E4F4F0;
    --c-accent:#E1783C;
    --c-accent-dark:#C96327;
    --c-panel:#0B2E3C;
    --c-footer:#08222D;
    --c-bg:#F5F8FA;
    --c-card:#FFFFFF;
    --c-alt:#EEF4F7;
    --c-title:#0E2733;
    --c-text:#45606E;
    --c-muted:#8497A0;
    --c-border:#E1EAEF;
    --c-border-strong:#CBD9E1;
    --c-warn:#D9822B;
    --c-error:#C6453C;
    --r-card:16px;
    --r-panel:20px;
    --r-nav:18px;
    --r-sm:12px;
    --r-btn:10px;
    --sh-1:0 1px 2px rgba(12,45,60,.05);
    --sh-2:0 6px 18px rgba(12,45,60,.07);
    --sh-3:0 16px 40px rgba(12,45,60,.10);
    --ease:180ms ease;
  }

  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    font-family:system-ui,-apple-system,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
    font-size:16px;
    line-height:1.75;
    color:var(--c-text);
    background:var(--c-bg);
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block}
  a{color:var(--c-primary);text-decoration:none;transition:color var(--ease)}
  a:hover{text-decoration:underline;text-underline-offset:3px}
  button{font:inherit;cursor:pointer;border:0;background:none}
  ul,ol{margin:0;padding:0;list-style:none}
  h1,h2,h3,h4,p{margin:0}
  :focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
  .num{font-variant-numeric:tabular-nums}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 22px}

  /* ---------- 顶部信息条 ---------- */
  .topbar{background:var(--c-primary-soft);border-bottom:1px solid var(--c-border)}
  .topbar-inner{display:flex;align-items:center;gap:10px;min-height:34px;font-size:13px;color:var(--c-primary-dark)}
  .topbar-inner svg{flex:0 0 auto}
  .topbar-text{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .topbar-close{margin-left:auto;padding:4px 8px;border-radius:8px;color:var(--c-primary-dark);opacity:.72;transition:background var(--ease),opacity var(--ease)}
  .topbar-close:hover{background:rgba(18,97,127,.12);opacity:1}

  /* ---------- 导航 ---------- */
  .nav-wrap{position:sticky;top:12px;z-index:60;padding-top:16px}
  .nav-panel{
    display:flex;align-items:center;gap:14px;
    background:var(--c-card);
    border:1px solid var(--c-border);
    border-radius:var(--r-nav);
    box-shadow:var(--sh-2);
    padding:12px 16px;
    min-height:72px;
    transition:box-shadow var(--ease);
  }
  .brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--c-title)}
  .brand:hover{text-decoration:none}
  .brand-mark{
    width:44px;height:44px;border-radius:12px;
    background:linear-gradient(160deg,var(--c-primary),var(--c-primary-dark));
    color:#fff;display:flex;align-items:center;justify-content:center;
    box-shadow:var(--sh-1);flex:0 0 auto;
  }
  .brand-text{display:flex;flex-direction:column;line-height:1.25}
  .brand-text strong{font-size:16px;font-weight:700;color:var(--c-title);letter-spacing:.01em}
  .brand-text small{font-size:12px;color:var(--c-muted)}
  .nav-cards{display:flex;align-items:center;gap:4px;margin-left:auto}
  .nav-card{
    display:flex;align-items:center;gap:8px;
    padding:9px 12px;border-radius:12px;
    border:1px solid transparent;
    font-size:14px;font-weight:600;color:var(--c-text);
    white-space:nowrap;
    transition:background var(--ease),border-color var(--ease),color var(--ease);
  }
  .nav-card svg{transition:transform var(--ease)}
  .nav-card:hover{background:var(--c-primary-soft);border-color:rgba(18,97,127,.3);color:var(--c-primary-dark);text-decoration:none}
  .nav-card:hover svg{transform:translateY(-2px)}
  .nav-card.is-active{background:var(--c-primary-soft);border-color:rgba(18,97,127,.38);color:var(--c-primary-dark)}
  .nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
  .nav-text-link{font-size:14px;font-weight:600;color:var(--c-primary);white-space:nowrap}

  .nav-toggle{
    display:none;width:44px;height:44px;border-radius:12px;
    border:1px solid var(--c-border);background:#fff;
    align-items:center;justify-content:center;color:var(--c-primary-dark);
    transition:background var(--ease),border-color var(--ease);
  }
  .nav-toggle:hover{background:var(--c-primary-soft);border-color:rgba(18,97,127,.35)}
  .mobile-nav{
    display:none;margin-top:10px;padding:12px;
    background:var(--c-card);border:1px solid var(--c-border);
    border-radius:var(--r-nav);box-shadow:var(--sh-3);
  }
  .mobile-nav.is-open{display:block}
  .mobile-nav a{
    display:flex;align-items:center;gap:12px;min-height:48px;padding:0 14px;
    border-radius:12px;font-size:15px;font-weight:600;color:var(--c-text);
  }
  .mobile-nav a:hover,.mobile-nav a.is-active{background:var(--c-primary-soft);color:var(--c-primary-dark);text-decoration:none}
  .mobile-nav .arrow{margin-left:auto;color:var(--c-muted)}
  .mobile-nav .mobile-btn{margin-top:10px;display:flex}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 24px;border-radius:var(--r-btn);
    font-size:15px;font-weight:600;border:1px solid transparent;
    transition:background var(--ease),color var(--ease),box-shadow var(--ease),border-color var(--ease),transform 120ms ease;
  }
  .btn:active{transform:translateY(1px)}
  .btn-primary{background:var(--c-accent);color:#fff;box-shadow:var(--sh-1)}
  .btn-primary:hover{background:var(--c-accent-dark);color:#fff;text-decoration:none;box-shadow:var(--sh-2)}
  .btn-outline{background:#fff;border-color:var(--c-primary);color:var(--c-primary)}
  .btn-outline:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);text-decoration:none}
  .btn-ghost{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.32);color:#fff}
  .btn-ghost:hover{background:rgba(255,255,255,.2);text-decoration:none}
  .btn-text{height:auto;padding:4px 0;color:var(--c-primary);font-weight:600}
  .btn-text svg{transition:transform var(--ease)}
  .btn-text:hover{text-decoration:none}
  .btn-text:hover svg{transform:translateX(4px)}
  .btn:disabled{opacity:.6;cursor:not-allowed;transform:none}

  /* ---------- 面包屑 ---------- */
  .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);padding-top:26px}
  .breadcrumb a{color:var(--c-muted)}
  .breadcrumb a:hover{color:var(--c-primary)}
  .breadcrumb .sep{opacity:.55}
  .breadcrumb .current{color:var(--c-primary);font-weight:600}

  /* ---------- 通用标题 ---------- */
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;font-weight:600;letter-spacing:.12em;color:var(--c-primary);
  }
  .eyebrow::before{content:"";width:16px;height:3px;border-radius:2px;background:var(--c-primary)}
  h1{font-size:clamp(30px,4.4vw,46px);line-height:1.2;font-weight:700;color:var(--c-title);margin-top:18px;letter-spacing:-.01em}
  h2{font-size:clamp(24px,3vw,32px);line-height:1.3;font-weight:700;color:var(--c-title)}
  h3{font-size:19px;line-height:1.45;font-weight:600;color:var(--c-title)}
  .lead{font-size:17px;line-height:1.85;color:var(--c-text)}

  .section{padding:88px 0}
  .section-alt{background:var(--c-alt)}
  .section-head{max-width:760px}
  .section-head h2{margin-top:14px}
  .section-head p{margin-top:14px;font-size:16px;color:var(--c-text)}

  /* ---------- 分类 Hero ---------- */
  .page-hero{position:relative;overflow:hidden;padding:8px 0 76px}
  .page-hero::before{
    content:"";position:absolute;left:0;right:0;top:0;height:62%;
    background:linear-gradient(180deg,var(--c-primary-soft) 0%,rgba(231,241,245,0) 100%);
    pointer-events:none;
  }
  .hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:44px;align-items:center;margin-top:34px}
  .hero-sub{margin-top:18px;font-size:17px;line-height:1.85;color:var(--c-text);max-width:62ch}
  .hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
  .hero-stats{display:flex;flex-wrap:wrap;gap:28px;margin-top:34px;padding-top:26px;border-top:1px dashed var(--c-border-strong)}
  .hero-stat strong{display:block;font-size:26px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums;line-height:1.2}
  .hero-stat span{font-size:13px;color:var(--c-muted)}

  .hero-visual{position:relative}
  .media-frame{
    border-radius:var(--r-panel);overflow:hidden;
    border:1px solid var(--c-border);background:var(--c-primary-soft);
    box-shadow:var(--sh-3);
  }
  .media-frame img{width:100%;aspect-ratio:4/3;object-fit:cover}
  .status-chip{
    position:absolute;left:-18px;bottom:-18px;
    display:flex;align-items:center;gap:10px;
    background:#fff;border:1px solid var(--c-border);border-radius:12px;
    box-shadow:var(--sh-2);padding:12px 16px;
  }
  .status-chip .dot{width:9px;height:9px;border-radius:50%;background:var(--c-green);box-shadow:0 0 0 4px var(--c-green-soft);flex:0 0 auto}
  .status-chip strong{display:block;font-size:14px;color:var(--c-title);font-weight:600}
  .status-chip small{font-size:12px;color:var(--c-muted);font-variant-numeric:tabular-nums}

  /* ---------- 步骤条 + 侧栏 ---------- */
  .rail-layout{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:44px;margin-top:48px;align-items:start}
  .step-rail{display:flex;flex-direction:column}
  .step-item{position:relative;display:grid;grid-template-columns:56px minmax(0,1fr);gap:20px;padding-bottom:34px}
  .step-item:last-child{padding-bottom:0}
  .step-item::before{
    content:"";position:absolute;left:27px;top:58px;bottom:6px;width:2px;
    background:linear-gradient(180deg,var(--c-primary-soft),var(--c-border-strong));
  }
  .step-item:last-child::before{display:none}
  .step-num{
    width:56px;height:56px;border-radius:16px;
    background:#fff;border:1px solid var(--c-border);box-shadow:var(--sh-1);
    display:flex;align-items:center;justify-content:center;
    font-size:20px;font-weight:700;color:var(--c-primary);
    font-variant-numeric:tabular-nums;
  }
  .step-body h3{margin-bottom:8px}
  .step-body p{font-size:15.5px;line-height:1.8}
  .check-list{margin-top:14px;display:flex;flex-direction:column;gap:8px}
  .check-list li{display:flex;gap:10px;font-size:15px;color:var(--c-text)}
  .check-list svg{flex:0 0 auto;margin-top:5px;color:var(--c-green)}

  .side-card{
    position:sticky;top:112px;
    background:var(--c-card);border:1px solid var(--c-border);
    border-radius:var(--r-card);box-shadow:var(--sh-2);
    padding:26px;
  }
  .side-card h3{font-size:17px;margin-bottom:14px}
  .side-card .side-list{display:flex;flex-direction:column;gap:12px}
  .side-card .side-list li{display:flex;gap:10px;font-size:14.5px;line-height:1.7}
  .side-card .side-list span.idx{
    width:22px;height:22px;border-radius:7px;flex:0 0 auto;
    background:var(--c-primary-soft);color:var(--c-primary-dark);
    font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;
    font-variant-numeric:tabular-nums;margin-top:2px;
  }
  .side-note{margin-top:18px;padding-top:16px;border-top:1px dashed var(--c-border);font-size:13px;color:var(--c-muted)}

  /* ---------- 图文交错 ---------- */
  .alt-stack{display:flex;flex-direction:column;margin-top:8px}
  .alt-row{
    display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);
    gap:52px;align-items:center;
    padding:52px 0;border-top:1px dashed var(--c-border);
  }
  .alt-row:first-child{border-top:0}
  .alt-row.reverse{grid-template-columns:minmax(0,7fr) minmax(0,5fr)}
  .alt-row.reverse .alt-media{order:2}
  .alt-row.reverse .alt-body{order:1}
  .alt-media{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--c-border);background:var(--c-primary-soft);box-shadow:var(--sh-2);transition:box-shadow var(--ease),transform var(--ease)}
  .alt-media:hover{box-shadow:var(--sh-3);transform:translateY(-2px)}
  .alt-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    font-size:12.5px;font-weight:600;padding:5px 12px;border-radius:999px;
  }
  .badge-brand{background:var(--c-primary-soft);color:var(--c-primary-dark)}
  .badge-pass{background:var(--c-green-soft);color:var(--c-green)}
  .alt-body h3{margin-top:14px;font-size:21px}
  .alt-body p{margin-top:12px;font-size:15.5px;line-height:1.85;max-width:66ch}
  .alt-body .check-list{margin-top:16px}
  .mini-facts{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
  .mini-fact{
    flex:1 1 150px;background:var(--c-card);border:1px solid var(--c-border);
    border-radius:var(--r-sm);padding:14px 16px;box-shadow:var(--sh-1);
  }
  .mini-fact strong{display:block;font-size:18px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums}
  .mini-fact span{font-size:13px;color:var(--c-muted)}

  /* ---------- 要点条 ---------- */
  .metrics-band{
    display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
    gap:20px;margin-top:44px;
  }
  .metric-card{
    background:var(--c-card);border:1px solid var(--c-border);
    border-radius:var(--r-card);box-shadow:var(--sh-2);
    padding:24px;transition:box-shadow var(--ease),transform var(--ease);
  }
  .metric-card:hover{box-shadow:var(--sh-3);transform:translateY(-2px)}
  .metric-card strong{display:block;font-size:28px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums;line-height:1.2}
  .metric-card h3{font-size:16px;margin-top:10px}
  .metric-card p{margin-top:8px;font-size:14px;line-height:1.75;color:var(--c-text)}

  /* ---------- FAQ ---------- */
  .faq-layout{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:48px;margin-top:44px;align-items:start}
  .faq-list{display:flex;flex-direction:column;gap:12px}
  .faq-item{
    background:var(--c-card);border:1px solid var(--c-border);
    border-radius:var(--r-sm);box-shadow:var(--sh-1);overflow:hidden;
    transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
  }
  .faq-item:hover{box-shadow:var(--sh-2)}
  .faq-q{
    width:100%;display:flex;align-items:center;gap:16px;text-align:left;
    padding:18px 22px;font-size:17px;font-weight:600;color:var(--c-title);
    min-height:44px;
  }
  .faq-q .sign{
    margin-left:auto;flex:0 0 auto;width:26px;height:26px;border-radius:8px;
    background:var(--c-primary-soft);color:var(--c-primary-dark);
    display:flex;align-items:center;justify-content:center;
    font-size:16px;font-weight:700;transition:transform var(--ease);
  }
  .faq-item.is-open{border-color:rgba(18,97,127,.35);background:rgba(231,241,245,.5);box-shadow:var(--sh-2)}
  .faq-item.is-open .faq-q{border-left:3px solid var(--c-primary)}
  .faq-item.is-open .sign{transform:rotate(45deg)}
  .faq-a{display:none;padding:0 22px 20px 22px;font-size:15px;line-height:1.85;color:var(--c-text);max-width:68ch}
  .faq-item.is-open .faq-a{display:block}
  .faq-aside .side-card{position:static}
  .faq-aside p{margin-top:14px;font-size:15px;line-height:1.8}
  .contact-card{
    margin-top:22px;background:var(--c-card);border:1px solid var(--c-border);
    border-radius:var(--r-card);box-shadow:var(--sh-2);padding:20px;
    display:flex;gap:14px;align-items:flex-start;
  }
  .contact-card .ico{
    width:44px;height:44px;border-radius:12px;background:var(--c-green-soft);
    color:var(--c-green);display:flex;align-items:center;justify-content:center;flex:0 0 auto;
  }
  .contact-card strong{display:block;font-size:16px;color:var(--c-title)}
  .contact-card span{display:block;font-size:14px;color:var(--c-muted);margin-top:2px}

  /* ---------- 相关分类 ---------- */
  .related-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;margin-top:44px}
  .related-card{
    display:flex;flex-direction:column;gap:10px;
    background:var(--c-card);border:1px solid var(--c-border);
    border-radius:var(--r-card);box-shadow:var(--sh-2);padding:22px;
    color:var(--c-text);
    transition:box-shadow var(--ease),transform var(--ease),border-color var(--ease);
  }
  .related-card:hover{box-shadow:var(--sh-3);transform:translateY(-2px);border-color:var(--c-border-strong);text-decoration:none}
  .related-card .ico{
    width:42px;height:42px;border-radius:12px;background:var(--c-primary-soft);
    color:var(--c-primary);display:flex;align-items:center;justify-content:center;
  }
  .related-card strong{font-size:16.5px;color:var(--c-title);font-weight:600}
  .related-card p{font-size:14px;line-height:1.7;color:var(--c-text)}
  .related-card .go{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);margin-top:auto}
  .related-card .go svg{transition:transform var(--ease)}
  .related-card:hover .go svg{transform:translateX(4px)}

  /* ---------- 浅色 CTA 条 ---------- */
  .cta-bar{
    display:grid;grid-template-columns:minmax(0,1fr) auto;gap:28px;align-items:center;
    background:#fff;border:1px solid var(--c-primary);border-radius:var(--r-panel);
    box-shadow:var(--sh-1);padding:38px 40px;
  }
  .cta-bar h2{font-size:clamp(22px,2.6vw,28px)}
  .cta-bar p{margin-top:12px;font-size:15px;color:var(--c-text);max-width:60ch}
  .cta-bar .cta-actions{display:flex;flex-wrap:wrap;gap:12px}
  .cta-note{margin-top:14px;font-size:13px;color:var(--c-muted)}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--c-footer);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:88px}
  .footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
  .footer-brand strong{display:block;color:#fff;font-size:16.5px;margin-bottom:12px}
  .footer-brand .brand-mark{margin-bottom:14px}
  .footer-brand p{font-size:14px;line-height:1.8;max-width:34ch}
  .footer-contact{display:inline-block;margin-top:14px;font-size:13px;color:rgba(255,255,255,.6)}
  .footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
  .footer-col ul{display:flex;flex-direction:column;gap:10px}
  .footer-col a{font-size:14px;color:rgba(255,255,255,.72)}
  .footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
  .footer-bottom{
    margin-top:48px;border-top:1px solid rgba(255,255,255,.12);
    padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;
    font-size:13px;color:rgba(255,255,255,.56);
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1279px){
    .nav-card{padding:8px 10px;font-size:13.5px}
    .hero-grid{gap:36px}
  }
  @media (max-width:1023px){
    .nav-cards{display:none}
    .nav-toggle{display:inline-flex}
    .nav-panel{justify-content:space-between}
    .hero-grid{grid-template-columns:1fr;gap:44px}
    .page-hero{padding-bottom:64px}
    .rail-layout{grid-template-columns:1fr;gap:32px}
    .side-card{position:static}
    .alt-row,.alt-row.reverse{grid-template-columns:1fr;gap:28px;padding:40px 0}
    .alt-row.reverse .alt-media{order:0}
    .alt-row.reverse .alt-body{order:0}
    .faq-layout{grid-template-columns:1fr;gap:32px}
    .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .metrics-band{grid-template-columns:repeat(2,minmax(0,1fr))}
    .footer-top{grid-template-columns:1fr 1fr;gap:32px}
    .cta-bar{grid-template-columns:1fr;padding:32px}
    .section{padding:64px 0}
  }
  @media (max-width:767px){
    .container{padding:0 18px}
    .page-hero{padding-bottom:52px}
    .status-chip{left:12px;bottom:12px}
    .hero-stats{gap:20px}
    .hero-stat strong{font-size:22px}
    .metrics-band{grid-template-columns:1fr}
    .related-grid{grid-template-columns:1fr}
    .section{padding:48px 0}
    .faq-q{font-size:16px;padding:16px 18px}
    .alt-row{padding:32px 0}
    .nav-actions .btn-primary{display:none}
  }
  @media (max-width:640px){
    .footer-top{grid-template-columns:1fr}
    .footer-bottom{flex-direction:column;gap:8px}
  }

/* roulang page: article */
:root{
  --primary:#12617F;
  --primary-hover:#0C475F;
  --primary-light:#E7F1F5;
  --accent:#2E9B86;
  --accent-light:#E4F4F0;
  --cta:#E1783C;
  --cta-hover:#C96327;
  --dark:#0B2E3C;
  --footer:#08222D;
  --bg:#F5F8FA;
  --card:#FFFFFF;
  --alt:#EEF4F7;
  --title:#0E2733;
  --text:#45606E;
  --muted:#8497A0;
  --border:#E1EAEF;
  --border-strong:#CBD9E1;
  --sh1:0 1px 2px rgba(12,45,60,.05);
  --sh2:0 6px 18px rgba(12,45,60,.07);
  --sh3:0 16px 40px rgba(12,45,60,.10);
  --r-card:16px;
  --r-panel:20px;
  --r-nav:18px;
  --r-sm:12px;
  --r-btn:10px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--primary);text-decoration:none;}
a:hover{color:var(--primary-hover);}
button{font-family:inherit;}
h1,h2,h3,h4{color:var(--title);margin:0;}
p{margin:0;}
ul,ol{margin:0;padding:0;}
::selection{background:var(--primary-light);color:var(--primary-hover);}
:where(a,button,input,select,textarea):focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:8px;}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:var(--alt);}
::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:8px;border:2px solid var(--alt);}
::-webkit-scrollbar-thumb:hover{background:var(--muted);}

.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}
.tnum{font-variant-numeric:tabular-nums;}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--primary-light);border-bottom:1px solid rgba(18,97,127,.12);}
.topbar-inner{display:flex;align-items:center;gap:10px;min-height:36px;font-size:13px;color:var(--primary-hover);}
.topbar-inner svg{flex-shrink:0;color:var(--primary);}
.topbar-text{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-close{width:24px;height:24px;border:0;background:transparent;color:var(--primary);font-size:18px;line-height:1;border-radius:8px;cursor:pointer;transition:background .15s ease;flex-shrink:0;}
.topbar-close:hover{background:rgba(18,97,127,.12);}
.topbar.is-hidden{display:none;}

/* ---------- 头部与导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;padding:12px 0 6px;background:linear-gradient(180deg,rgba(245,248,250,.97) 60%,rgba(245,248,250,.82));backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);}
.nav-panel{
  display:flex;align-items:center;gap:14px;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r-nav);
  box-shadow:var(--sh2);
  padding:12px 16px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;text-decoration:none;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:46px;height:46px;flex-shrink:0;
  display:grid;place-items:center;
  border-radius:13px;
  background:var(--primary-light);
  color:var(--primary);
  border:1px solid rgba(18,97,127,.18);
}
.brand-text{display:flex;flex-direction:column;min-width:0;}
.brand-text strong{font-size:15px;font-weight:700;color:var(--title);line-height:1.25;white-space:nowrap;}
.brand-text small{font-size:12px;color:var(--muted);line-height:1.4;margin-top:2px;white-space:nowrap;}
.nav-cards{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-card{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 12px;border-radius:var(--r-sm);
  border:1px solid transparent;
  font-size:14px;color:var(--text);
  white-space:nowrap;transition:background .18s ease,border-color .18s ease,color .18s ease;
}
.nav-card svg{transition:transform .18s ease;flex-shrink:0;}
.nav-card:hover{background:var(--primary-light);border-color:rgba(18,97,127,.3);color:var(--primary);text-decoration:none;}
.nav-card:hover svg{transform:translateY(-2px);}
.nav-card.is-active{background:var(--primary-light);border-color:rgba(18,97,127,.3);color:var(--primary);font-weight:600;}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);
  border:1px solid var(--border);background:#fff;color:var(--primary);
  place-items:center;cursor:pointer;transition:background .18s ease,border-color .18s ease;
}
.nav-toggle:hover{background:var(--primary-light);border-color:rgba(18,97,127,.3);}
.nav-toggle:active{transform:translateY(1px);}

.mobile-panel{display:none;background:#fff;border:1px solid var(--border);border-radius:var(--r-nav);box-shadow:var(--sh3);padding:12px;margin-top:10px;}
.mobile-panel.is-open{display:block;}
.m-link{display:flex;align-items:center;justify-content:space-between;height:48px;padding:0 14px;border-radius:var(--r-sm);font-size:15px;color:var(--text);transition:background .15s ease,color .15s ease;}
.m-link:hover{background:var(--primary-light);color:var(--primary);text-decoration:none;}
.m-link svg{opacity:.45;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:14px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:background .18s ease,color .18s ease,box-shadow .18s ease,transform .12s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px);}
.btn-cta{background:var(--cta);color:#fff;}
.btn-cta:hover{background:var(--cta-hover);color:#fff;box-shadow:var(--sh2);text-decoration:none;}
.btn-outline{background:#fff;color:var(--primary);border-color:var(--primary);}
.btn-outline:hover{background:var(--primary-light);color:var(--primary-hover);text-decoration:none;}
.btn-block{width:100%;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);}
.text-link svg{transition:transform .18s ease;}
.text-link:hover{text-decoration:underline;text-underline-offset:3px;}
.text-link:hover svg{transform:translateX(4px);}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.02em;white-space:nowrap;}
.badge-brand{background:var(--primary-light);color:var(--primary);}
.badge-pass{background:var(--accent-light);color:var(--accent);}

/* ---------- 页头色带与面包屑 ---------- */
.page-strip{background:linear-gradient(180deg,var(--primary-light) 0%,rgba(231,241,245,0) 100%);padding:22px 0 0;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
.breadcrumb .sep{color:var(--border-strong);}
.breadcrumb .current{color:var(--primary);font-weight:600;}

/* ---------- 文章布局 ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;align-items:start;padding-top:28px;padding-bottom:72px;}
.article-main{min-width:0;}
.article-title{font-size:clamp(28px,3.4vw,40px);font-weight:700;line-height:1.28;margin:16px 0 18px;letter-spacing:-.01em;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-size:14px;color:var(--muted);font-variant-numeric:tabular-nums;}
.article-meta .dot{color:var(--border-strong);}
.article-lead{
  margin:26px 0 0;padding:18px 22px;
  background:var(--primary-light);
  border-left:3px solid var(--primary);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  font-size:17px;line-height:1.85;color:var(--primary-hover);
}
.article-body{margin-top:34px;}

/* ---------- 长文排版 ---------- */
.prose{font-size:17px;line-height:1.9;color:var(--text);word-wrap:break-word;}
.prose>*:first-child{margin-top:0;}
.prose p{margin:0 0 1.15em;}
.prose h2{
  position:relative;
  font-size:24px;font-weight:700;line-height:1.45;color:var(--title);
  margin:2em 0 .8em;padding-left:16px;
}
.prose h2::before{content:"";position:absolute;left:0;top:.42em;width:4px;height:20px;border-radius:2px;background:var(--primary);}
.prose h3{font-size:19px;font-weight:600;line-height:1.5;color:var(--title);margin:1.7em 0 .6em;}
.prose h4{font-size:17px;font-weight:600;color:var(--title);margin:1.4em 0 .5em;}
.prose ul,.prose ol{margin:0 0 1.15em;padding-left:0;list-style:none;line-height:1.85;}
.prose ul>li{position:relative;padding-left:20px;margin-bottom:.55em;}
.prose ul>li::before{content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;border-radius:2px;background:var(--primary);}
.prose ol{counter-reset:prose-num;}
.prose ol>li{position:relative;padding-left:30px;margin-bottom:.55em;counter-increment:prose-num;}
.prose ol>li::before{
  content:counter(prose-num);
  position:absolute;left:0;top:.22em;
  width:20px;height:20px;border-radius:6px;
  background:var(--primary-light);color:var(--primary);
  font-size:12px;font-weight:700;line-height:20px;text-align:center;
}
.prose li>ul,.prose li>ol{margin-top:.5em;}
.prose blockquote{
  margin:1.5em 0;padding:16px 22px;
  background:var(--primary-light);
  border-left:3px solid var(--primary);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:var(--primary-hover);
}
.prose blockquote p:last-child{margin-bottom:0;}
.prose img{max-width:100%;height:auto;border-radius:var(--r-sm);box-shadow:var(--sh2);margin:1.5em auto;}
.prose figure{margin:1.5em 0;}
.prose figure img{margin:0 auto;}
.prose figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;}
.prose a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
.prose a:hover{color:var(--primary-hover);}
.prose strong{color:var(--title);font-weight:600;}
.prose hr{border:0;border-top:1px dashed var(--border-strong);margin:2.2em 0;}
.prose table{width:100%;border-collapse:separate;border-spacing:0;border:1px solid var(--border);border-radius:var(--r-sm);overflow:hidden;margin:1.5em 0;font-size:15px;}
.prose thead th{background:var(--primary-light);color:var(--primary-hover);font-weight:600;text-align:left;padding:12px 14px;border-bottom:1px solid var(--border);}
.prose tbody td{padding:12px 14px;border-bottom:1px solid var(--border);}
.prose tbody tr:nth-child(even){background:#FAFCFD;}
.prose tbody tr:last-child td{border-bottom:0;}
.prose pre{background:var(--dark);color:#E8F1F5;border-radius:var(--r-sm);padding:18px 20px;overflow-x:auto;font-size:14px;line-height:1.75;margin:1.5em 0;}
.prose pre code{background:none;color:inherit;padding:0;font-size:inherit;}
.prose code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;}
.prose :not(pre)>code{background:var(--primary-light);color:var(--primary-hover);padding:2px 6px;border-radius:6px;font-size:.9em;}

/* ---------- 空态 ---------- */
.empty-state{
  display:flex;flex-direction:column;align-items:center;gap:14px;
  padding:56px 24px;text-align:center;
  background:#fff;border:1px dashed var(--border-strong);border-radius:var(--r-card);
}
.empty-state svg{color:var(--muted);}
.empty-state p{font-size:16px;color:var(--text);}

/* ---------- 文章尾部 ---------- */
.article-foot{margin-top:44px;padding-top:26px;border-top:1px dashed var(--border-strong);display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;background:var(--alt);border:1px solid var(--border);color:var(--text);font-size:13px;}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px;}
.pager-card{display:block;padding:18px 20px;background:#fff;border:1px solid var(--border);border-radius:14px;box-shadow:var(--sh1);transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;}
.pager-card:hover{box-shadow:var(--sh2);transform:translateY(-2px);border-color:var(--border-strong);text-decoration:none;}
.pager-label{display:block;font-size:12px;color:var(--muted);margin-bottom:6px;}
.pager-card strong{display:block;font-size:15px;font-weight:600;color:var(--title);line-height:1.5;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.pager-card:hover strong{color:var(--primary);}

/* ---------- 相关推荐 ---------- */
.related-section{margin-top:64px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(20px,2.2vw,26px);font-weight:700;line-height:1.35;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:22px;}
.rel-card{display:block;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--sh2);overflow:hidden;padding-bottom:22px;transition:box-shadow .18s ease,transform .18s ease;}
.rel-card:hover{box-shadow:var(--sh3);transform:translateY(-2px);text-decoration:none;}
.rel-card img{width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--primary-light);}
.rel-card .badge{margin:16px 20px 0;}
.rel-card h3{margin:10px 20px 8px;font-size:17px;font-weight:600;line-height:1.5;color:var(--title);}
.rel-card:hover h3{color:var(--primary);}
.rel-card p{margin:0 20px;font-size:14px;line-height:1.7;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:104px;display:flex;flex-direction:column;gap:20px;}
.side-card{background:#fff;border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--sh1);padding:20px;}
.side-title{position:relative;font-size:15px;font-weight:600;color:var(--title);padding-left:12px;margin-bottom:14px;}
.side-title::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:16px;border-radius:2px;background:var(--primary);}
.toc{display:grid;gap:2px;max-height:320px;overflow-y:auto;}
.toc a{display:block;padding:8px 10px;border-radius:8px;border-left:3px solid transparent;font-size:14px;line-height:1.5;color:var(--text);transition:background .15s ease,color .15s ease,border-color .15s ease;}
.toc a:hover{background:var(--alt);color:var(--primary);text-decoration:none;}
.toc a.is-current{background:var(--primary-light);border-left-color:var(--primary);color:var(--primary);font-weight:600;}
.side-list{display:grid;gap:14px;}
.side-list a{display:flex;gap:12px;align-items:flex-start;}
.side-list img{width:64px;height:48px;border-radius:10px;object-fit:cover;background:var(--primary-light);flex-shrink:0;border:1px solid var(--border);}
.side-list span{font-size:14px;line-height:1.5;color:var(--title);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.side-list a:hover span{color:var(--primary);}
.side-list a:hover{text-decoration:none;}
.side-cta{background:var(--dark);border-radius:var(--r-card);padding:24px;}
.side-cta h2{font-size:18px;font-weight:700;color:#fff;margin-bottom:10px;}
.side-cta p{font-size:14px;line-height:1.7;color:rgba(255,255,255,.72);margin-bottom:18px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer);padding:64px 0 28px;margin-top:24px;color:rgba(255,255,255,.72);}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.footer-brand{display:grid;grid-template-columns:auto 1fr;gap:12px;align-items:center;align-content:start;}
.footer-brand .brand-mark{width:44px;height:44px;border-radius:12px;background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.16);}
.footer-brand strong{font-size:17px;font-weight:700;color:#fff;line-height:1.3;}
.footer-brand p{grid-column:1 / -1;font-size:14px;line-height:1.75;color:rgba(255,255,255,.6);margin:4px 0 0;}
.footer-contact{grid-column:1 / -1;font-size:13px;color:rgba(255,255,255,.5);font-variant-numeric:tabular-nums;}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72);transition:color .18s ease;}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:13px;color:rgba(255,255,255,.5);}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .nav-card{padding:8px 10px;font-size:13px;gap:5px;}
  .brand-text small{display:none;}
  .article-layout{gap:36px;}
}
@media (max-width:1023px){
  .nav-cards{display:none;}
  .nav-toggle{display:inline-grid;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;}
  .article-side{display:none;}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .article-layout{padding-bottom:52px;}
  .article-title{font-size:clamp(24px,6.4vw,30px);}
  .article-lead{font-size:16px;padding:16px 18px;}
  .prose{font-size:16px;line-height:1.85;}
  .prose h2{font-size:21px;}
  .prose h3{font-size:18px;}
  .related-section{margin-top:48px;}
  .site-footer{padding:48px 0 24px;}
  .footer-top{gap:28px;}
}
@media (max-width:639px){
  .nav-actions .btn-cta{display:none;}
  .brand-mark{width:42px;height:42px;}
  .brand-text strong{font-size:14px;}
  .pager{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:minmax(0,1fr);}
  .footer-top{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .article-foot{flex-direction:column;align-items:flex-start;}
}
@media (max-width:399px){
  .brand-text strong{font-size:13px;}
  .brand{gap:10px;}
  .brand-mark{width:38px;height:38px;border-radius:11px;}
}

/* roulang page: category2 */
:root{
  --brand:#12617F;
  --brand-dark:#0C475F;
  --brand-soft:#E7F1F5;
  --pass:#2E9B86;
  --pass-soft:#E4F4F0;
  --accent:#E1783C;
  --accent-dark:#C96327;
  --panel-dark:#0B2E3C;
  --footer-dark:#08222D;
  --page:#F5F8FA;
  --card:#FFFFFF;
  --alt:#EEF4F7;
  --ink:#0E2733;
  --body:#45606E;
  --weak:#8497A0;
  --line:#E1EAEF;
  --line-strong:#CBD9E1;
  --ok:#2E9B86;
  --warn:#D9822B;
  --err:#C6453C;
  --r-card:16px;
  --r-panel:20px;
  --r-nav:18px;
  --r-sm:12px;
  --r-btn:10px;
  --sh1:0 1px 2px rgba(12,45,60,.05);
  --sh2:0 6px 18px rgba(12,45,60,.07);
  --sh3:0 16px 40px rgba(12,45,60,.10);
  --font:system-ui,-apple-system,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",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:1.75;
  color:var(--body);
  background:var(--page);
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.3;}
p{margin:0;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease, text-decoration-color .18s ease;}
a:hover{text-decoration:underline;text-underline-offset:3px;}
img{display:block;max-width:100%;height:auto;}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.num{font-variant-numeric:tabular-nums;}

.container{max-width:1200px;margin:0 auto;padding:0 24px;}

/* ============ 顶部信息条 ============ */
.topbar{
  background:var(--brand-soft);
  color:var(--brand-dark);
  font-size:13px;
  border-bottom:1px solid var(--line);
}
.topbar-inner{
  min-height:36px;
  display:flex;align-items:center;gap:10px;
  padding-top:6px;padding-bottom:6px;
}
.topbar-inner svg{flex:none;color:var(--brand);}
.topbar-inner span{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.topbar-close{
  flex:none;width:26px;height:26px;border:1px solid var(--line-strong);
  background:#fff;color:var(--brand);border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  transition:background .18s ease,color .18s ease;
}
.topbar-close:hover{background:var(--brand);color:#fff;border-color:var(--brand);}
.topbar-close:active{transform:translateY(1px);}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:12px;z-index:60;
  padding:14px 0 6px;
}
.nav-panel{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-nav);
  box-shadow:var(--sh2);
  padding:12px 16px;
  display:flex;align-items:center;gap:18px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex:none;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:42px;height:42px;flex:none;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:var(--brand-soft);
  color:var(--brand);
  border:1px solid #D3E5EC;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:16px;font-weight:700;color:var(--ink);white-space:nowrap;}
.brand-text small{font-size:12px;color:var(--weak);white-space:nowrap;}

.nav-cards{display:flex;align-items:center;gap:6px;flex:1;min-width:0;flex-wrap:nowrap;overflow:hidden;}
.nav-card{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 12px;border-radius:var(--r-sm);
  border:1px solid transparent;
  color:var(--body);font-size:14px;font-weight:600;
  white-space:nowrap;
  transition:background .18s ease,border-color .18s ease,color .18s ease;
}
.nav-card svg{transition:transform .18s ease;color:var(--brand);}
.nav-card:hover{background:var(--brand-soft);border-color:rgba(18,97,127,.3);color:var(--brand-dark);text-decoration:none;}
.nav-card:hover svg{transform:translateY(-2px);}
.nav-card.is-active{background:var(--brand-soft);border-color:rgba(18,97,127,.35);color:var(--brand-dark);}

.nav-actions{display:flex;align-items:center;gap:12px;flex:none;}
.nav-link-plain{font-size:14px;font-weight:600;color:var(--brand);white-space:nowrap;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line-strong);background:#fff;color:var(--brand-dark);
  align-items:center;justify-content:center;
}
.nav-toggle:hover{background:var(--brand-soft);}
.nav-toggle:active{transform:translateY(1px);}

.mobile-panel{
  display:none;margin-top:10px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-nav);box-shadow:var(--sh2);padding:12px;
}
.mobile-panel.is-open{display:block;}
.mobile-panel a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 14px;border-radius:var(--r-sm);
  color:var(--body);font-size:15px;font-weight:600;
  border:1px solid transparent;
}
.mobile-panel a:hover,.mobile-panel a.is-active{background:var(--brand-soft);border-color:rgba(18,97,127,.28);color:var(--brand-dark);text-decoration:none;}
.mobile-panel .m-left{display:flex;align-items:center;gap:10px;}
.mobile-panel .btn{width:100%;justify-content:center;margin-top:8px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .12s ease;
  text-decoration:none;white-space:nowrap;
}
.btn:hover{text-decoration:none;}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--sh1);}
.btn-primary:hover{background:var(--accent-dark);box-shadow:var(--sh2);color:#fff;}
.btn-secondary{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-secondary:hover{background:var(--brand-soft);color:var(--brand-dark);}
.btn-ghost{background:transparent;color:var(--brand);padding:0 6px;min-height:auto;}
.btn-ghost svg{transition:transform .18s ease;}
.btn-ghost:hover svg{transform:translateX(4px);}
.btn-sm{min-height:42px;padding:0 18px;font-size:14px;}

/* ============ 面包屑 ============ */
.breadcrumb{
  font-size:13px;color:var(--weak);
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:18px 0 0;
}
.breadcrumb a{color:var(--weak);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--line-strong);}
.breadcrumb .current{color:var(--brand);font-weight:600;}

/* ============ 分类 Hero ============ */
.cat-hero{
  padding:32px 0 0;
}
.hero-grid{
  display:grid;grid-template-columns:minmax(0,2.1fr) minmax(0,1fr);
  gap:28px;align-items:stretch;
}
.hero-main{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-panel);
  box-shadow:var(--sh2);padding:38px 36px;
  position:relative;overflow:hidden;
}
.hero-main::after{
  content:"";position:absolute;right:-40px;top:-40px;width:220px;height:220px;
  background:linear-gradient(160deg,var(--brand-soft),rgba(231,241,245,0));
  border-radius:50%;pointer-events:none;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.12em;color:var(--brand);
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:16px;height:3px;border-radius:2px;background:var(--brand);}
.hero-main h1{
  font-size:clamp(30px,4.2vw,46px);font-weight:700;line-height:1.18;
  position:relative;z-index:1;
}
.hero-lead{
  margin-top:16px;font-size:16.5px;line-height:1.8;color:var(--body);
  max-width:62ch;position:relative;z-index:1;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;position:relative;z-index:1;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:var(--brand-soft);color:var(--brand-dark);
}
.badge-pass{background:var(--pass-soft);color:#1F7A69;}
.badge-accent{background:#FCEDE2;color:#B4531C;}

.hero-side{display:flex;flex-direction:column;gap:16px;}
.hero-media{
  border-radius:var(--r-panel);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh2);background:var(--brand-soft);position:relative;
  flex:1;min-height:180px;
}
.hero-media img{width:100%;height:100%;min-height:180px;object-fit:cover;}
.hero-media figcaption{
  position:absolute;left:14px;right:14px;bottom:14px;
  background:rgba(255,255,255,.94);border-radius:var(--r-sm);
  padding:10px 14px;font-size:13px;color:var(--body);border:1px solid var(--line);
}
.hero-note{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh1);padding:18px 20px;
}
.hero-note h2{font-size:15px;font-weight:700;margin-bottom:10px;}
.hero-note ul{margin:0;padding:0;list-style:none;display:grid;gap:8px;}
.hero-note li{display:flex;gap:9px;font-size:14px;line-height:1.65;color:var(--body);}
.hero-note li svg{flex:none;margin-top:3px;color:var(--pass);}

/* ============ 数据条 ============ */
.kpi-row{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:16px;margin-top:26px;
}
.kpi{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh1);padding:18px 20px;
  transition:box-shadow .18s ease,transform .18s ease;
}
.kpi:hover{box-shadow:var(--sh2);transform:translateY(-2px);}
.kpi b{display:block;font-size:26px;font-weight:700;color:var(--brand);line-height:1.2;font-variant-numeric:tabular-nums;}
.kpi span{display:block;font-size:13.5px;color:var(--weak);margin-top:4px;}

/* ============ 内容布局：左侧目录 + 右侧内容块 ============ */
.layout{
  display:grid;grid-template-columns:264px minmax(0,1fr);
  gap:36px;align-items:start;
  padding:56px 0 0;
}
.toc{
  position:sticky;top:104px;
}
.toc-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh1);padding:20px 18px;
}
.toc-card h2{font-size:14px;font-weight:700;color:var(--ink);letter-spacing:.02em;margin-bottom:14px;}
.toc-list{list-style:none;margin:0;padding:0;display:grid;gap:2px;}
.toc-list a{
  display:block;padding:9px 12px;border-radius:10px;
  font-size:14px;color:var(--body);border-left:3px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.toc-list a:hover{background:var(--brand-soft);color:var(--brand-dark);border-left-color:var(--brand);text-decoration:none;}
.toc-list a.is-current{background:var(--brand-soft);color:var(--brand-dark);border-left-color:var(--brand);font-weight:600;}

.toc-cta{
  margin-top:16px;background:var(--panel-dark);color:#DCEBF1;
  border-radius:var(--r-card);padding:20px 18px;
}
.toc-cta h3{color:#fff;font-size:15px;margin-bottom:8px;}
.toc-cta p{font-size:13.5px;line-height:1.7;color:rgba(255,255,255,.75);margin-bottom:14px;}
.toc-cta .btn{width:100%;}

.blocks{display:grid;gap:24px;min-width:0;}
.block{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh2);padding:30px 32px;
  scroll-margin-top:110px;
}
.block h2{
  font-size:clamp(21px,2.4vw,26px);font-weight:700;
  display:flex;align-items:center;gap:12px;margin-bottom:14px;
}
.block h2::before{
  content:"";width:5px;height:22px;border-radius:3px;background:var(--brand);flex:none;
}
.block h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.block p{font-size:15.5px;line-height:1.85;color:var(--body);margin-bottom:14px;}
.block p:last-child{margin-bottom:0;}

.panel-soft{
  background:var(--brand-soft);border:1px solid #D3E5EC;border-radius:var(--r-sm);
  padding:18px 20px;margin-top:16px;
}
.panel-soft h3{color:var(--brand-dark);}
.panel-soft p{color:#2C5568;font-size:15px;margin-bottom:0;}

.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:18px;}
.mini-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);
  padding:18px 20px;box-shadow:var(--sh1);
  transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.mini-card:hover{box-shadow:var(--sh2);transform:translateY(-2px);border-color:var(--line-strong);}
.mini-card h4{font-size:15.5px;font-weight:600;color:var(--ink);margin-bottom:6px;display:flex;align-items:center;gap:8px;}
.mini-card h4 svg{color:var(--brand);flex:none;}
.mini-card p{font-size:14px;line-height:1.75;color:var(--body);margin:0;}

.check-list{list-style:none;margin:14px 0 0;padding:0;display:grid;gap:10px;}
.check-list li{display:flex;gap:10px;font-size:15px;line-height:1.75;color:var(--body);}
.check-list svg{flex:none;margin-top:4px;color:var(--pass);}

.step-list{list-style:none;margin:18px 0 0;padding:0;counter-reset:step;}
.step-list li{
  position:relative;padding:0 0 20px 46px;border-left:2px dashed var(--line-strong);
  margin-left:14px;
}
.step-list li:last-child{border-left-color:transparent;padding-bottom:0;}
.step-list li::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  position:absolute;left:-15px;top:0;
  width:30px;height:30px;border-radius:9px;
  background:var(--brand-soft);color:var(--brand-dark);
  border:1px solid #D3E5EC;
  font-size:12.5px;font-weight:700;font-variant-numeric:tabular-nums;
  display:flex;align-items:center;justify-content:center;
}
.step-list h3{font-size:16px;font-weight:600;margin-bottom:4px;}
.step-list p{font-size:14.5px;color:var(--body);margin:0;}

/* 驳回清单（自定义列表，非表格） */
.reject-list{list-style:none;margin:18px 0 0;padding:0;border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden;}
.reject-list li{
  display:grid;grid-template-columns:56px minmax(0,1fr) minmax(0,1fr);
  gap:0;border-bottom:1px solid var(--line);
}
.reject-list li:last-child{border-bottom:none;}
.reject-list li:nth-child(odd){background:#FAFCFD;}
.reject-list .r-no{
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;color:var(--brand);
  background:var(--brand-soft);font-variant-numeric:tabular-nums;
}
.reject-list .r-cell{padding:15px 18px;font-size:14.5px;line-height:1.7;color:var(--body);}
.reject-list .r-cell:first-of-type{border-right:1px solid var(--line);font-weight:600;color:var(--ink);}
.reject-head{
  display:grid;grid-template-columns:56px minmax(0,1fr) minmax(0,1fr);
  border:1px solid var(--line);border-radius:var(--r-sm) var(--r-sm) 0 0;
  background:var(--alt);margin-top:18px;
}
.reject-head span{padding:11px 18px;font-size:13px;font-weight:600;color:var(--brand-dark);}
.reject-head span:first-child{border-right:1px solid var(--line);text-align:center;}
.reject-head span:nth-child(2){border-right:1px solid var(--line);}

/* 时间线 */
.timeline{list-style:none;margin:20px 0 0;padding:0 0 0 8px;position:relative;}
.timeline::before{
  content:"";position:absolute;left:14px;top:6px;bottom:6px;width:2px;
  background:linear-gradient(180deg,var(--brand),rgba(18,97,127,.15));
}
.timeline li{position:relative;padding:0 0 22px 34px;}
.timeline li:last-child{padding-bottom:0;}
.timeline li::before{
  content:"";position:absolute;left:6px;top:6px;width:18px;height:18px;border-radius:50%;
  background:#fff;border:3px solid var(--brand);
}
.timeline h3{font-size:16px;font-weight:600;margin-bottom:4px;}
.timeline span.t-time{
  display:inline-block;font-size:12.5px;font-weight:600;color:var(--brand);
  background:var(--brand-soft);border-radius:999px;padding:2px 10px;margin-bottom:6px;
  font-variant-numeric:tabular-nums;
}
.timeline p{font-size:14.5px;color:var(--body);margin:0;}

/* FAQ */
.faq-list{display:grid;gap:12px;margin-top:18px;}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;
  box-shadow:var(--sh1);overflow:hidden;
  transition:border-color .18s ease,background .18s ease;
}
.faq-item.is-open{border-color:rgba(18,97,127,.35);background:rgba(231,241,245,.4);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:none;text-align:left;
  padding:17px 20px;font-size:16px;font-weight:600;color:var(--ink);
  border-left:3px solid transparent;
}
.faq-item.is-open .faq-q{border-left-color:var(--brand);}
.faq-q .faq-ico{
  flex:none;width:26px;height:26px;border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand);font-size:16px;font-weight:700;
  transition:transform .2s ease,background .18s ease,color .18s ease;
}
.faq-item.is-open .faq-ico{transform:rotate(45deg);background:var(--brand);color:#fff;}
.faq-q:hover{color:var(--brand-dark);}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .28s ease;
}
.faq-item.is-open .faq-a{max-height:420px;}
.faq-a p{
  padding:0 20px 18px 23px;font-size:15px;line-height:1.8;color:var(--body);max-width:68ch;
}

/* ============ 相关分类 ============ */
.rel-section{padding:56px 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:22px;}
.section-head h2{font-size:clamp(22px,2.6vw,28px);}
.section-head p{font-size:14.5px;color:var(--weak);margin-top:6px;}
.rel-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.rel-card{
  display:flex;flex-direction:column;gap:10px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh1);padding:20px;color:var(--body);
  transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.rel-card:hover{box-shadow:var(--sh2);transform:translateY(-2px);border-color:var(--line-strong);text-decoration:none;}
.rel-card .rel-ico{
  width:42px;height:42px;border-radius:12px;background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
}
.rel-card strong{font-size:16px;font-weight:600;color:var(--ink);}
.rel-card span{font-size:13.5px;line-height:1.65;color:var(--weak);}
.rel-card .rel-more{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;color:var(--brand);margin-top:auto;}
.rel-card:hover .rel-more svg{transform:translateX(4px);}
.rel-card .rel-more svg{transition:transform .18s ease;}

/* ============ 浅色 CTA 条 ============ */
.cta-strip{
  margin-top:56px;
  background:#fff;border:1px solid rgba(18,97,127,.35);border-radius:var(--r-panel);
  box-shadow:var(--sh2);padding:36px 38px;
  display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);
  gap:28px;align-items:center;
}
.cta-strip h2{font-size:clamp(21px,2.4vw,27px);margin-bottom:10px;}
.cta-strip p{font-size:15px;color:var(--body);line-height:1.8;max-width:60ch;}
.cta-strip .cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:72px;background:var(--footer-dark);color:rgba(255,255,255,.72);
  padding:56px 0 0;
}
.footer-top{
  display:grid;grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));
  gap:32px;padding-bottom:36px;
}
.footer-brand .brand-mark{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.14);color:#8FD3E6;}
.footer-brand strong{display:block;font-size:16px;color:#fff;margin:12px 0 10px;}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.68);max-width:34ch;}
.footer-contact{display:inline-block;margin-top:12px;font-size:13.5px;color:#8FD3E6;}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px;}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 28px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 20px;}
  .layout{grid-template-columns:236px minmax(0,1fr);gap:26px;}
}
@media (max-width:1023px){
  .nav-cards{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-link-plain{display:none;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-media{min-height:240px;}
  .hero-media img{min-height:240px;}
  .kpi-row{grid-template-columns:repeat(2,minmax(0,1fr));}
  .layout{grid-template-columns:1fr;gap:24px;padding-top:40px;}
  .toc{position:static;}
  .toc-card{padding:16px;}
  .toc-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:4px;}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-strip{grid-template-columns:1fr;padding:30px 26px;}
  .cta-strip .cta-actions{justify-content:flex-start;}
  .footer-top{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
}
@media (max-width:767px){
  .site-header{top:8px;padding-top:10px;}
  .nav-panel{padding:10px 12px;gap:12px;min-height:66px;}
  .brand-mark{width:38px;height:38px;}
  .brand-text strong{font-size:14.5px;white-space:normal;}
  .brand-text small{display:none;}
  .hero-main{padding:26px 22px;}
  .block{padding:22px 20px;}
  .grid-2{grid-template-columns:1fr;}
  .kpi-row{grid-template-columns:1fr;}
  .reject-head{display:none;}
  .reject-list{border:none;display:grid;gap:12px;}
  .reject-list li{
    grid-template-columns:1fr;border:1px solid var(--line);border-radius:var(--r-sm);
    box-shadow:var(--sh1);overflow:hidden;
  }
  .reject-list .r-no{justify-content:flex-start;padding:8px 16px;background:var(--brand-soft);}
  .reject-list .r-cell{padding:12px 16px;}
  .reject-list .r-cell:first-of-type{border-right:none;background:#FAFCFD;border-bottom:1px solid var(--line);}
  .toc-list{grid-template-columns:1fr;}
  .rel-grid{grid-template-columns:1fr;}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px;}
  .footer-top{grid-template-columns:1fr;}
  .cta-strip{padding:24px 20px;}
  .cta-strip .cta-actions{flex-direction:column;align-items:stretch;}
  .btn{width:100%;}
  .btn-ghost{width:auto;}
  .nav-actions .btn{width:auto;}
}
@media (max-width:519px){
  .container{padding:0 16px;}
  .hero-main{padding:22px 18px;}
  .hero-main h1{font-size:clamp(26px,7.6vw,32px);}
  .block h2{font-size:20px;}
  .hero-media{min-height:200px;}
  .hero-media img{min-height:200px;}
  .step-list li{padding-left:40px;}
}

/* roulang page: category3 */
:root{
    --brand:#12617F; --brand-dark:#0C475F; --brand-light:#E7F1F5;
    --green:#2E9B86; --green-light:#E4F4F0;
    --accent:#E1783C; --accent-dark:#C96327;
    --panel-dark:#0B2E3C; --footer-dark:#08222D;
    --page-bg:#F5F8FA; --card:#FFFFFF; --alt-bg:#EEF4F7;
    --title:#0E2733; --text:#45606E; --muted:#8497A0;
    --line:#E1EAEF; --line-strong:#CBD9E1;
    --warn:#D9822B; --error:#C6453C;
    --r-card:16px; --r-panel:20px; --r-nav:18px; --r-sm:12px; --r-btn:10px;
    --sh1:0 1px 2px rgba(12,45,60,.05);
    --sh2:0 6px 18px rgba(12,45,60,.07);
    --sh3:0 16px 40px rgba(12,45,60,.10);
  }

  *,*::before,*::after{ box-sizing:border-box; }
  html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
  body{
    margin:0; background:var(--page-bg); color:var(--text);
    font-family:system-ui,-apple-system,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
    font-size:16px; line-height:1.75; -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4{ margin:0; color:var(--title); font-weight:700; letter-spacing:-.01em; }
  p{ margin:0; }
  ul,ol{ margin:0; padding:0; list-style:none; }
  img{ display:block; max-width:100%; }
  a{ color:var(--brand); text-decoration:none; transition:color .18s ease; }
  a:hover{ color:var(--brand-dark); text-decoration:underline; text-underline-offset:3px; }
  button,input,select,textarea{ font:inherit; color:inherit; }
  button{ cursor:pointer; border:0; background:none; }
  .num,.tabular{ font-variant-numeric:tabular-nums; }

  :focus-visible{ outline:2px solid var(--brand); outline-offset:2px; border-radius:4px; }

  .container{ width:100%; max-width:1200px; margin:0 auto; padding:0 24px; }

  /* ---------- 顶部信息条 ---------- */
  .topbar{ background:linear-gradient(90deg,#E7F1F5 0%,rgba(231,241,245,0) 60%),#F2F8FA; border-bottom:1px solid var(--line); }
  .topbar.is-hidden{ display:none; }
  .topbar-inner{ display:flex; align-items:center; gap:10px; min-height:36px; padding-top:6px; padding-bottom:6px; }
  .topbar-icon{ display:grid; place-items:center; width:20px; height:20px; color:var(--brand); flex:0 0 auto; }
  .topbar-inner p{ font-size:13px; color:#31596B; line-height:1.5; flex:1 1 auto; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
  .topbar-close{ width:28px; height:28px; border-radius:8px; color:var(--muted); display:grid; place-items:center; font-size:18px; line-height:1; flex:0 0 auto; }
  .topbar-close:hover{ background:rgba(18,97,127,.1); color:var(--brand); }
  .topbar-close:active{ transform:translateY(1px); }

  /* ---------- 导航 ---------- */
  .nav-wrap{ position:sticky; top:12px; z-index:60; padding-top:16px; }
  .nav-panel{
    display:flex; align-items:center; gap:16px;
    background:#fff; border:1px solid var(--line); border-radius:var(--r-nav);
    box-shadow:var(--sh2); padding:12px 16px; min-height:72px;
    transition:box-shadow .2s ease,background .2s ease;
  }
  .nav-wrap.is-stuck .nav-panel{ box-shadow:var(--sh3); background:rgba(255,255,255,.95); backdrop-filter:blur(8px); -webkit-backdrop-filter:blur(8px); }

  .brand{ display:flex; align-items:center; gap:12px; flex:0 0 auto; text-decoration:none; }
  .brand:hover{ text-decoration:none; }
  .brand-mark{
    width:42px; height:42px; border-radius:12px; flex:0 0 auto;
    background:var(--brand-light); color:var(--brand);
    display:grid; place-items:center; border:1px solid rgba(18,97,127,.16);
  }
  .brand-text{ display:flex; flex-direction:column; line-height:1.2; }
  .brand-text strong{ font-size:16px; color:var(--title); font-weight:700; white-space:nowrap; }
  .brand-text small{ font-size:12px; color:var(--muted); margin-top:3px; white-space:nowrap; }

  .nav-cards{ display:flex; align-items:center; gap:4px; flex:1 1 auto; justify-content:center; }
  .nav-card{
    display:inline-flex; align-items:center; gap:7px; padding:9px 12px;
    border-radius:var(--r-sm); border:1px solid transparent;
    font-size:14px; color:var(--text); white-space:nowrap;
    transition:background .18s ease,color .18s ease,border-color .18s ease;
  }
  .nav-card svg{ transition:transform .18s ease; flex:0 0 auto; }
  .nav-card:hover{ background:var(--brand-light); border-color:rgba(18,97,127,.3); color:var(--brand); text-decoration:none; }
  .nav-card:hover svg{ transform:translateY(-2px); }
  .nav-card:active{ transform:translateY(1px); }
  .nav-card.is-active{ background:var(--brand-light); border-color:rgba(18,97,127,.3); color:var(--brand); font-weight:600; }

  .nav-actions{ display:flex; align-items:center; gap:14px; flex:0 0 auto; }
  .nav-textlink{ font-size:14px; color:var(--brand); }
  .menu-toggle{
    display:none; width:44px; height:44px; border-radius:12px;
    border:1px solid var(--line-strong); background:#fff; color:var(--brand);
    place-items:center; flex:0 0 auto;
  }
  .menu-toggle:hover{ background:var(--brand-light); }

  .mobile-menu{
    display:none; margin-top:10px; background:#fff; border:1px solid var(--line);
    border-radius:var(--r-nav); box-shadow:var(--sh2); padding:12px;
  }
  .mobile-menu.is-open{ display:block; }
  .mobile-menu a{
    display:flex; align-items:center; gap:12px; min-height:48px; padding:0 14px;
    border-radius:var(--r-sm); font-size:15px; color:var(--title);
  }
  .mobile-menu a:hover{ background:var(--brand-light); text-decoration:none; color:var(--brand); }
  .mobile-menu a.is-active{ background:var(--brand-light); color:var(--brand); font-weight:600; }
  .mobile-menu a .arrow{ margin-left:auto; color:var(--muted); }
  .mobile-menu .mobile-cta{ display:block; margin-top:10px; }

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex; align-items:center; justify-content:center; gap:8px;
    height:46px; padding:0 24px; border-radius:var(--r-btn);
    font-size:15px; font-weight:600; text-decoration:none; white-space:nowrap;
    transition:background .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease,transform .12s ease;
  }
  .btn:hover{ text-decoration:none; }
  .btn:active{ transform:translateY(1px); }
  .btn-primary{ background:var(--accent); color:#fff; box-shadow:var(--sh1); }
  .btn-primary:hover{ background:var(--accent-dark); color:#fff; box-shadow:var(--sh2); }
  .btn-ghost{ background:#fff; color:var(--brand); border:1px solid var(--brand); }
  .btn-ghost:hover{ background:var(--brand-light); color:var(--brand-dark); }
  .btn-soft{ background:var(--brand-light); color:var(--brand); border:1px solid rgba(18,97,127,.2); }
  .btn-soft:hover{ background:#D8EAF1; color:var(--brand-dark); }
  .btn-block{ width:100%; }

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

  /* ---------- 面包屑 ---------- */
  .breadcrumb{ display:flex; align-items:center; gap:8px; flex-wrap:wrap; font-size:13px; color:var(--muted); padding:22px 0 0; }
  .breadcrumb a{ color:var(--muted); }
  .breadcrumb a:hover{ color:var(--brand); }
  .breadcrumb .sep{ color:var(--line-strong); }
  .breadcrumb .current{ color:var(--brand); font-weight:600; }

  /* ---------- Hero ---------- */
  .hero{ position:relative; padding:26px 0 0; }
  .hero::before{
    content:""; position:absolute; inset:0 0 auto 0; height:60%; pointer-events:none;
    background:
      linear-gradient(180deg,rgba(231,241,245,.85) 0%,rgba(231,241,245,0) 100%),
      repeating-linear-gradient(90deg,rgba(18,97,127,.04) 0 1px,transparent 1px 48px);
  }
  .hero > .container{ position:relative; }
  .hero-grid{ display:grid; grid-template-columns:minmax(0,1.45fr) minmax(0,1fr); gap:40px; align-items:center; padding:34px 0 8px; }
  .eyebrow{ display:inline-flex; align-items:center; gap:9px; font-size:13px; font-weight:600; letter-spacing:.12em; color:var(--brand); }
  .eyebrow-bar{ width:16px; height:3px; border-radius:2px; background:var(--brand); display:inline-block; }
  .hero h1{ font-size:clamp(30px,4vw,46px); line-height:1.18; margin-top:16px; }
  .hero-sub{ margin-top:18px; font-size:17px; color:var(--text); max-width:38em; }
  .hero-points{ margin-top:22px; display:grid; gap:10px; }
  .hero-points li{ display:flex; gap:10px; align-items:flex-start; font-size:15px; color:var(--text); }
  .hero-points svg{ flex:0 0 auto; margin-top:4px; color:var(--green); }
  .hero-actions{ display:flex; flex-wrap:wrap; gap:14px; margin-top:28px; }

  .hero-media{ position:relative; }
  .hero-media img{
    width:100%; aspect-ratio:4/3; object-fit:cover;
    border-radius:var(--r-panel); border:1px solid var(--line);
    background:var(--brand-light); box-shadow:var(--sh3);
  }
  .hero-float{
    position:absolute; left:-18px; bottom:-18px; background:#fff;
    border:1px solid var(--line); border-radius:14px; box-shadow:var(--sh3);
    padding:14px 18px; display:flex; align-items:center; gap:12px; min-width:210px;
  }
  .hero-float .dot{ width:38px; height:38px; border-radius:11px; background:var(--green-light); color:var(--green); display:grid; place-items:center; flex:0 0 auto; }
  .hero-float strong{ display:block; font-size:15px; color:var(--title); }
  .hero-float span{ display:block; font-size:12px; color:var(--muted); }

  /* ---------- 板块 ---------- */
  .section{ padding:88px 0; }
  .section-alt{ background:var(--alt-bg); }
  .section-head{ max-width:44em; }
  .section-head h2{ font-size:clamp(24px,2.8vw,32px); line-height:1.3; margin-top:14px; }
  .section-head p{ margin-top:14px; font-size:16px; color:var(--text); }

  /* ---------- 卡片网格 ---------- */
  .cards-grid{ display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:24px; margin-top:44px; }
  .info-card{
    background:#fff; border:1px solid var(--line); border-radius:var(--r-card);
    box-shadow:var(--sh2); overflow:hidden; display:flex; flex-direction:column;
    transition:box-shadow .18s ease,transform .18s ease;
  }
  .info-card:hover{ box-shadow:var(--sh3); transform:translateY(-2px); }
  .card-media{ background:var(--brand-light); border-bottom:1px solid var(--line); }
  .card-media img{ width:100%; aspect-ratio:16/10; object-fit:cover; }
  .card-body{ padding:26px; display:flex; flex-direction:column; gap:12px; flex:1 1 auto; }
  .card-body h3{ font-size:18px; line-height:1.45; }
  .card-body p{ font-size:15px; color:var(--text); }
  .card-body .link-arrow{ margin-top:auto; padding-top:6px; }

  .badge{
    display:inline-flex; align-items:center; gap:6px; align-self:flex-start;
    padding:4px 11px; border-radius:999px; font-size:12.5px; font-weight:600;
    background:var(--brand-light); color:var(--brand);
  }
  .badge.green{ background:var(--green-light); color:#1F7A69; }
  .badge.warm{ background:#FBEDE3; color:var(--accent-dark); }

  .info-card--wide{ grid-column:1/-1; display:grid; grid-template-columns:minmax(0,1.05fr) minmax(0,1fr); }
  .info-card--wide .card-media{ border-bottom:0; border-right:1px solid var(--line); }
  .info-card--wide .card-media img{ height:100%; aspect-ratio:auto; min-height:300px; }
  .info-card--wide .card-body{ padding:38px 40px; gap:16px; }
  .info-card--wide h3{ font-size:clamp(20px,2.2vw,26px); line-height:1.35; }
  .info-card--wide p{ font-size:16px; }

  /* ---------- 编号列表区 ---------- */
  .steps-list{ margin-top:40px; display:grid; gap:0; border:1px solid var(--line); border-radius:var(--r-card); background:#fff; box-shadow:var(--sh1); overflow:hidden; }
  .step-row{ display:grid; grid-template-columns:88px minmax(0,1fr); gap:22px; padding:26px 28px; align-items:start; }
  .step-row + .step-row{ border-top:1px solid var(--line); }
  .step-row:nth-child(even){ background:#F8FBFC; }
  .step-index{ font-size:30px; font-weight:700; color:rgba(18,97,127,.25); font-variant-numeric:tabular-nums; line-height:1; }
  .step-row h3{ font-size:17px; margin-bottom:8px; }
  .step-row p{ font-size:15px; }
  .step-tag{ display:inline-flex; margin-top:12px; font-size:13px; color:var(--green); background:var(--green-light); border-radius:999px; padding:3px 11px; font-weight:600; }

  /* ---------- FAQ ---------- */
  .faq-list{ margin-top:38px; }
  .faq-item{
    background:#fff; border:1px solid var(--line); border-radius:var(--r-sm);
    margin-bottom:12px; overflow:hidden; box-shadow:var(--sh1);
    transition:box-shadow .18s ease,border-color .18s ease;
  }
  .faq-item:hover{ box-shadow:var(--sh2); }
  .faq-item summary{
    list-style:none; cursor:pointer; display:flex; align-items:center; gap:16px;
    padding:18px 22px; font-size:17px; font-weight:600; color:var(--title);
    transition:background .18s ease;
  }
  .faq-item summary::-webkit-details-marker{ display:none; }
  .faq-item summary::after{
    content:"+"; margin-left:auto; flex:0 0 auto; width:24px; height:24px;
    display:grid; place-items:center; border-radius:7px;
    background:var(--brand-light); color:var(--brand); font-size:17px; font-weight:600; line-height:1;
    transition:transform .2s ease,background .2s ease;
  }
  .faq-item[open] summary{ background:rgba(231,241,245,.45); box-shadow:inset 3px 0 0 var(--brand); }
  .faq-item[open] summary::after{ content:"−"; background:var(--brand); color:#fff; }
  .faq-answer{ padding:0 22px 20px 25px; }
  .faq-answer p{ font-size:15px; line-height:1.85; color:var(--text); max-width:68ch; }

  /* ---------- 相关分类 ---------- */
  .cat-grid{ display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:20px; margin-top:36px; }
  .cat-card{
    display:block; background:#fff; border:1px solid var(--line); border-radius:var(--r-card);
    padding:22px; box-shadow:var(--sh1); transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
  }
  .cat-card:hover{ box-shadow:var(--sh3); transform:translateY(-2px); border-color:rgba(18,97,127,.3); text-decoration:none; }
  .cat-card .ic{ width:40px; height:40px; border-radius:11px; background:var(--brand-light); color:var(--brand); display:grid; place-items:center; }
  .cat-card h3{ font-size:16px; margin-top:16px; }
  .cat-card p{ font-size:13.5px; color:var(--muted); margin-top:8px; line-height:1.65; }
  .cat-card .link-arrow{ margin-top:14px; font-size:13.5px; }

  /* ---------- 浅色 CTA ---------- */
  .cta-band{ padding:0 0 88px; }
  .cta-inner{
    background:#fff; border:1px solid rgba(18,97,127,.28); border-radius:var(--r-panel);
    box-shadow:var(--sh2); padding:40px 44px;
    display:grid; grid-template-columns:minmax(0,1.6fr) minmax(0,1fr); gap:32px; align-items:center;
  }
  .cta-inner h2{ font-size:clamp(22px,2.4vw,28px); line-height:1.35; }
  .cta-inner p{ margin-top:14px; font-size:15.5px; color:var(--text); max-width:42em; }
  .cta-actions{ display:flex; flex-direction:column; gap:12px; align-items:stretch; }
  .cta-note{ font-size:12.5px; color:var(--muted); text-align:center; }

  /* ---------- 页脚 ---------- */
  .site-footer{ background:var(--footer-dark); color:rgba(255,255,255,.72); padding:72px 0 0; }
  .footer-top{ display:grid; grid-template-columns:1.6fr 1fr 1fr 1fr; gap:36px; }
  .footer-brand .brand-mark{ background:rgba(255,255,255,.1); color:#8FD3E6; border-color:rgba(255,255,255,.14); }
  .footer-brand strong{ display:block; margin-top:16px; font-size:17px; color:#fff; }
  .footer-brand p{ margin-top:12px; font-size:14px; line-height:1.75; color:rgba(255,255,255,.66); max-width:30em; }
  .footer-contact{ display:inline-block; margin-top:16px; font-size:13.5px; color:#8FD3E6; background:rgba(143,211,230,.12); border-radius:999px; padding:5px 14px; }
  .footer-col h4{ font-size:14px; color:#fff; font-weight:600; letter-spacing:.02em; }
  .footer-col ul{ margin-top:18px; display:grid; gap:12px; }
  .footer-col a{ font-size:14px; color:rgba(255,255,255,.72); }
  .footer-col a:hover{ color:#fff; text-decoration:underline; }
  .footer-bottom{
    margin-top:56px; border-top:1px solid rgba(255,255,255,.12);
    padding:24px 0 30px; display:flex; justify-content:space-between; gap:16px; flex-wrap:wrap;
    font-size:13px; color:rgba(255,255,255,.5);
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1279px){
    .nav-card{ padding:8px 10px; font-size:13.5px; }
    .brand-text small{ display:none; }
  }
  @media (max-width:1023px){
    .nav-cards{ display:none; }
    .nav-actions .btn{ display:none; }
    .menu-toggle{ display:grid; margin-left:auto; }
    .nav-actions{ margin-left:auto; }
    .hero-grid{ grid-template-columns:minmax(0,1fr); gap:34px; padding-top:26px; }
    .hero-media{ order:2; }
    .hero-media img{ aspect-ratio:16/10; max-height:280px; }
    .hero-float{ left:14px; bottom:-16px; }
    .info-card--wide{ grid-template-columns:minmax(0,1fr); }
    .info-card--wide .card-media{ border-right:0; border-bottom:1px solid var(--line); }
    .info-card--wide .card-media img{ min-height:0; aspect-ratio:16/10; }
    .info-card--wide .card-body{ padding:28px; }
    .cat-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); }
    .cta-inner{ grid-template-columns:minmax(0,1fr); padding:32px; }
    .footer-top{ grid-template-columns:repeat(2,minmax(0,1fr)); gap:32px; }
    .section{ padding:64px 0; }
  }
  @media (max-width:767px){
    .container{ padding:0 20px; }
    .topbar-inner p{ font-size:12.5px; }
    .brand-text strong{ font-size:15px; }
    .section{ padding:48px 0; }
    .cards-grid{ grid-template-columns:minmax(0,1fr); gap:18px; margin-top:32px; }
    .card-body{ padding:20px; }
    .step-row{ grid-template-columns:minmax(0,1fr); gap:10px; padding:20px; }
    .step-index{ font-size:24px; }
    .faq-item summary{ font-size:15.5px; padding:15px 16px; }
    .faq-answer{ padding:0 16px 16px 19px; }
    .cat-grid{ grid-template-columns:minmax(0,1fr); }
    .cta-inner{ padding:24px; }
    .footer-top{ grid-template-columns:minmax(0,1fr); gap:28px; }
    .footer-bottom{ flex-direction:column; }
    .hero-actions .btn{ width:100%; }
  }
  @media (prefers-reduced-motion:reduce){
    *{ transition:none !important; animation:none !important; }
  }

/* roulang page: category4 */
:root{
  --brand:#12617F; --brand-dark:#0C475F; --brand-soft:#E7F1F5;
  --pass:#2E9B86; --pass-soft:#E4F4F0;
  --warm:#E1783C; --warm-dark:#C96327;
  --panel:#0B2E3C; --footer:#08222D;
  --bg:#F5F8FA; --card:#FFFFFF; --alt:#EEF4F7;
  --title:#0E2733; --text:#45606E; --muted:#8497A0;
  --line:#E1EAEF; --line-strong:#CBD9E1;
  --ok:#2E9B86; --warn:#D9822B; --err:#C6453C;
  --r-card:16px; --r-panel:20px; --r-nav:18px; --r-sm:12px; --r-btn:10px;
  --sh1:0 1px 2px rgba(12,45,60,.05);
  --sh2:0 6px 18px rgba(12,45,60,.07);
  --sh3:0 16px 40px rgba(12,45,60,.10);
  --font:system-ui,-apple-system,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0; font-family:var(--font); background:var(--bg); color:var(--text);
  font-size:16px; line-height:1.75; letter-spacing:.01em;
}
img{max-width:100%; display:block; border-style:none;}
a{color:var(--brand); text-decoration:none;}
a:hover{color:var(--brand-dark); text-decoration:underline; text-underline-offset:3px;}
h1,h2,h3,h4{color:var(--title); margin:0; line-height:1.3;}
p{margin:0;}
ul,ol{margin:0; padding:0; list-style:none;}
button{font-family:inherit; cursor:pointer; border:none; background:none; color:inherit;}
input,select,textarea{font-family:inherit; font-size:15px; color:var(--text);}
:focus-visible{outline:2px solid var(--brand); outline-offset:2px; border-radius:6px;}
.num{font-variant-numeric:tabular-nums;}
.container{width:100%; max-width:1200px; margin:0 auto; padding:0 24px;}
.section{padding:88px 0;}
.section--alt{background:var(--alt);}
.section-head{max-width:760px; margin-bottom:40px;}
.eyebrow{display:inline-flex; align-items:center; gap:10px; font-size:13px; font-weight:600; letter-spacing:.12em; color:var(--brand);}
.eyebrow::before{content:""; width:16px; height:3px; border-radius:2px; background:var(--brand);}
.section-head h2{font-size:clamp(24px,3vw,34px); font-weight:700; margin:14px 0 12px;}
.section-head p{font-size:16px; color:var(--text);}

/* ---------- 顶部信息条 ---------- */
.info-bar{background:var(--brand-soft); border-bottom:1px solid var(--line); font-size:13px; color:var(--brand-dark);}
.info-bar .container{display:flex; align-items:center; gap:10px; min-height:36px;}
.info-bar span{flex:1; overflow:hidden; white-space:nowrap; text-overflow:ellipsis;}
.info-close{width:28px; height:28px; border-radius:8px; display:inline-flex; align-items:center; justify-content:center; color:var(--brand);}
.info-close:hover{background:rgba(18,97,127,.12);}
.info-bar.is-hidden{display:none;}

/* ---------- 导航 ---------- */
.site-header{position:sticky; top:0; z-index:60; padding:12px 0; transition:background 180ms ease;}
.site-header.is-scrolled{background:rgba(245,248,250,.86); backdrop-filter:blur(8px);}
.nav-panel{
  background:var(--card); border:1px solid var(--line); border-radius:var(--r-nav);
  box-shadow:var(--sh2); padding:12px 16px; display:flex; align-items:center; gap:16px; min-height:72px;
}
.brand{display:flex; align-items:center; gap:12px; color:var(--title); text-decoration:none; flex:0 0 auto;}
.brand:hover{text-decoration:none; color:var(--title);}
.brand-mark{
  width:44px; height:44px; border-radius:14px; display:inline-flex; align-items:center; justify-content:center;
  background:var(--brand-soft); color:var(--brand); border:1px solid rgba(18,97,127,.18); flex:0 0 auto;
}
.brand-text{display:flex; flex-direction:column; line-height:1.2;}
.brand-text strong{font-size:16px; font-weight:700; color:var(--title); white-space:nowrap;}
.brand-text small{font-size:12px; color:var(--muted); margin-top:3px;}
.nav-cards{display:flex; align-items:center; gap:6px; margin-left:auto; flex-wrap:nowrap;}
.nav-card{
  display:inline-flex; align-items:center; gap:8px; padding:10px 12px; border-radius:var(--r-sm);
  font-size:14px; font-weight:600; color:var(--text); border:1px solid transparent; white-space:nowrap;
  transition:background 180ms ease,border-color 180ms ease,color 180ms ease,transform 180ms ease;
}
.nav-card svg{transition:transform 180ms ease; color:var(--brand);}
.nav-card:hover{background:var(--brand-soft); border-color:rgba(18,97,127,.3); color:var(--brand-dark); text-decoration:none;}
.nav-card:hover svg{transform:translateY(-2px);}
.nav-card.is-active{background:var(--brand-soft); border-color:rgba(18,97,127,.34); color:var(--brand-dark);}
.nav-actions{display:flex; align-items:center; gap:12px; flex:0 0 auto;}
.nav-text-link{font-size:14px; font-weight:600; color:var(--brand); white-space:nowrap;}
.nav-text-link:hover{text-decoration:underline; text-underline-offset:3px;}
.nav-toggle{
  width:44px; height:44px; border-radius:var(--r-sm); border:1px solid var(--line); background:#fff;
  display:none; align-items:center; justify-content:center; color:var(--brand); transition:background 180ms ease;
}
.nav-toggle:hover{background:var(--brand-soft);}
.nav-toggle:active{transform:translateY(1px);}
.mobile-menu{display:none; background:var(--card); border:1px solid var(--line); border-radius:var(--r-nav); box-shadow:var(--sh3); padding:12px; margin-top:12px;}
.mobile-menu.is-open{display:block;}
.mobile-menu a{
  display:flex; align-items:center; gap:12px; min-height:48px; padding:0 14px; border-radius:var(--r-sm);
  font-size:15px; font-weight:600; color:var(--title); border:1px solid transparent;
}
.mobile-menu a:hover{background:var(--brand-soft); border-color:rgba(18,97,127,.25); text-decoration:none;}
.mobile-menu a.is-active{background:var(--brand-soft); border-color:rgba(18,97,127,.3); color:var(--brand-dark);}
.mobile-menu a span{flex:1;}
.mobile-menu .mobile-cta{margin-top:10px; display:block; text-align:center;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px; min-height:46px; padding:0 24px;
  border-radius:var(--r-btn); font-size:15px; font-weight:600; border:1px solid transparent;
  transition:background 180ms ease,color 180ms ease,box-shadow 180ms ease,transform 180ms ease,border-color 180ms ease;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--warm); color:#fff; box-shadow:var(--sh1);}
.btn-primary:hover{background:var(--warm-dark); color:#fff; box-shadow:var(--sh2); text-decoration:none;}
.btn-outline{background:#fff; color:var(--brand); border-color:var(--brand);}
.btn-outline:hover{background:var(--brand-soft); color:var(--brand-dark); text-decoration:none;}
.btn-soft{background:var(--brand-soft); color:var(--brand-dark);}
.btn-soft:hover{background:#D8E9EF; color:var(--brand-dark); text-decoration:none;}
.btn-link{color:var(--brand); font-weight:600; display:inline-flex; align-items:center; gap:6px; padding:6px 0;}
.btn-link svg{transition:transform 180ms ease;}
.btn-link:hover{text-decoration:underline; text-underline-offset:3px; color:var(--brand-dark);}
.btn-link:hover svg{transform:translateX(4px);}

/* ---------- 面包屑 ---------- */
.crumbs{font-size:13px; color:var(--muted); padding-top:24px;}
.crumbs ol{display:flex; flex-wrap:wrap; align-items:center; gap:8px;}
.crumbs li::after{content:"/"; margin-left:8px; color:var(--line-strong);}
.crumbs li:last-child::after{content:""; margin:0;}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--brand);}
.crumbs .current{color:var(--brand); font-weight:600;}

/* ---------- Hero ---------- */
.cat-hero{padding:32px 0 8px;}
.cat-hero-grid{display:grid; grid-template-columns:minmax(0,8fr) minmax(0,4fr); gap:32px; align-items:stretch;}
.cat-hero h1{font-size:clamp(30px,4.4vw,46px); font-weight:700; line-height:1.18; margin:14px 0 16px;}
.cat-hero .lead{font-size:17px; max-width:56ch;}
.hero-stats{display:flex; flex-wrap:wrap; gap:12px; margin-top:26px;}
.stat{
  background:#fff; border:1px solid var(--line); border-radius:var(--r-sm); padding:12px 16px; box-shadow:var(--sh1);
  display:flex; flex-direction:column; min-width:132px;
}
.stat b{font-size:22px; color:var(--brand); font-variant-numeric:tabular-nums; line-height:1.2;}
.stat span{font-size:13px; color:var(--muted);}
.hero-side{display:flex; flex-direction:column; gap:16px;}
.hero-figure{
  border-radius:var(--r-panel); overflow:hidden; border:1px solid var(--line); background:var(--brand-soft);
  box-shadow:var(--sh3); position:relative; flex:1; min-height:240px;
}
.hero-figure img{width:100%; height:100%; min-height:240px; max-height:320px; object-fit:cover;}
.hero-badge{
  position:absolute; left:16px; bottom:16px; background:#fff; border-radius:var(--r-sm); box-shadow:var(--sh2);
  padding:12px 14px; display:flex; align-items:center; gap:10px; max-width:calc(100% - 32px);
}
.hero-badge svg{color:var(--pass); flex:0 0 auto;}
.hero-badge b{font-size:14px; color:var(--title); display:block;}
.hero-badge span{font-size:12px; color:var(--muted);}
.side-card{background:#fff; border:1px solid var(--line); border-radius:var(--r-card); box-shadow:var(--sh2); padding:20px;}
.side-card h3{font-size:16px; margin-bottom:10px;}
.side-card ul li{display:flex; gap:10px; font-size:14px; padding:7px 0; color:var(--text);}
.side-card ul li svg{color:var(--pass); flex:0 0 auto; margin-top:4px;}

/* ---------- 对比清单 ---------- */
.compare-wrap{border:1px solid var(--line); border-radius:var(--r-card); background:#fff; box-shadow:var(--sh2); overflow:hidden;}
.compare-head{
  display:grid; grid-template-columns:1.1fr 1.1fr 1.5fr; gap:0; background:var(--brand-soft);
  border-bottom:1px solid var(--line);
}
.compare-head span{padding:16px 20px; font-size:14px; font-weight:600; color:var(--brand-dark);}
.compare-row{
  display:grid; grid-template-columns:1.1fr 1.1fr 1.5fr; border-bottom:1px solid var(--line);
  transition:background 180ms ease;
}
.compare-row:nth-child(even){background:#FAFCFD;}
.compare-row:last-child{border-bottom:none;}
.compare-row:hover{background:var(--brand-soft);}
.compare-cell{padding:18px 20px; font-size:15px;}
.compare-cell:first-child{font-weight:600; color:var(--title);}
.compare-cell .tagline{display:inline-flex; align-items:center; gap:8px;}
.dot{width:8px; height:8px; border-radius:999px; background:var(--warn); flex:0 0 auto;}
.dot--ok{background:var(--pass);}
.dot--err{background:var(--err);}
.compare-note{margin-top:16px; font-size:14px; color:var(--muted);}

/* ---------- 时间轴 ---------- */
.timeline{position:relative; margin-top:8px; padding-left:0;}
.timeline::before{content:""; position:absolute; left:19px; top:8px; bottom:8px; width:2px; background:linear-gradient(180deg,rgba(18,97,127,.35),rgba(18,97,127,.05));}
.tl-item{position:relative; padding:0 0 24px 60px;}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:absolute; left:6px; top:2px; width:28px; height:28px; border-radius:999px; background:#fff;
  border:1px solid rgba(18,97,127,.3); color:var(--brand); display:flex; align-items:center; justify-content:center;
  font-size:13px; font-weight:700; font-variant-numeric:tabular-nums; box-shadow:var(--sh1);
}
.tl-card{background:#fff; border:1px solid var(--line); border-radius:var(--r-card); box-shadow:var(--sh2); padding:20px 22px; transition:box-shadow 180ms ease,transform 180ms ease;}
.tl-card:hover{box-shadow:var(--sh3); transform:translateY(-2px);}
.tl-card h3{font-size:17px; margin-bottom:6px;}
.tl-card p{font-size:15px;}
.tl-meta{margin-top:10px; font-size:13px; color:var(--muted);}

/* ---------- FAQ ---------- */
.faq-list{display:grid; gap:12px; max-width:860px;}
.faq-item{background:#fff; border:1px solid var(--line); border-radius:var(--r-sm); overflow:hidden; transition:box-shadow 180ms ease,border-color 180ms ease;}
.faq-item:hover{box-shadow:var(--sh2);}
.faq-item.is-open{border-color:rgba(18,97,127,.34); border-left:3px solid var(--brand); background:linear-gradient(90deg,rgba(231,241,245,.7),#fff 46%);}
.faq-q{
  width:100%; display:flex; align-items:center; gap:14px; text-align:left; padding:18px 20px;
  font-size:17px; font-weight:600; color:var(--title);
}
.faq-q span{flex:1;}
.faq-sign{
  width:26px; height:26px; border-radius:999px; background:var(--brand-soft); color:var(--brand);
  display:inline-flex; align-items:center; justify-content:center; flex:0 0 auto; transition:transform 180ms ease;
}
.faq-item.is-open .faq-sign{transform:rotate(45deg);}
.faq-a{display:none; padding:0 20px 20px 20px; font-size:15px; line-height:1.8; max-width:68ch;}
.faq-item.is-open .faq-a{display:block;}

/* ---------- 相关分类 ---------- */
.related-grid{display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:20px;}
.related-card{
  background:#fff; border:1px solid var(--line); border-radius:var(--r-card); box-shadow:var(--sh2); padding:22px;
  display:flex; flex-direction:column; gap:10px; color:var(--text); transition:box-shadow 180ms ease,transform 180ms ease,border-color 180ms ease;
}
.related-card:hover{box-shadow:var(--sh3); transform:translateY(-2px); border-color:var(--line-strong); text-decoration:none; color:var(--text);}
.related-card .badge{align-self:flex-start;}
.related-card h3{font-size:17px;}
.related-card p{font-size:14px; color:var(--muted);}
.related-card .go{font-size:14px; font-weight:600; color:var(--brand); display:inline-flex; align-items:center; gap:6px; margin-top:auto;}
.related-card.is-current{border-color:rgba(18,97,127,.34); background:linear-gradient(180deg,rgba(231,241,245,.6),#fff 60%);}
.badge{
  display:inline-flex; align-items:center; gap:6px; padding:5px 12px; border-radius:999px;
  font-size:12px; font-weight:600; background:var(--brand-soft); color:var(--brand-dark); white-space:nowrap;
}
.badge--pass{background:var(--pass-soft); color:#1F7A69;}

/* ---------- CTA 条 ---------- */
.cta-bar{
  background:#fff; border:1px solid rgba(18,97,127,.34); border-radius:var(--r-panel); box-shadow:var(--sh2);
  padding:32px; display:flex; flex-wrap:wrap; align-items:center; gap:24px; justify-content:space-between;
}
.cta-bar h2{font-size:clamp(20px,2.4vw,26px); font-weight:700; margin-bottom:8px;}
.cta-bar p{font-size:15px; max-width:60ch;}
.cta-bar .cta-actions{display:flex; flex-wrap:wrap; gap:12px;}

/* ---------- 表单 ---------- */
.field{margin-bottom:16px;}
.field label{display:block; font-size:14px; font-weight:600; color:var(--title); margin-bottom:8px;}
.field input,.field select{
  width:100%; height:48px; padding:0 14px; border:1px solid var(--line-strong); border-radius:var(--r-btn);
  background:#fff; transition:border-color 180ms ease,box-shadow 180ms ease;
}
.field input:focus,.field select:focus{outline:none; border-color:var(--brand); box-shadow:0 0 0 3px rgba(18,97,127,.14);}
.form-hint{font-size:12px; color:var(--muted); margin-top:10px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer); color:rgba(255,255,255,.72); margin-top:88px;}
.footer-top{display:grid; grid-template-columns:1.6fr 1fr 1fr 1fr; gap:32px; padding:64px 0 40px;}
.footer-brand strong{display:block; color:#fff; font-size:16px; margin:14px 0 10px;}
.footer-brand p{font-size:14px; max-width:34ch;}
.footer-brand .brand-mark{background:rgba(255,255,255,.08); border-color:rgba(255,255,255,.16); color:#fff;}
.footer-contact{display:inline-block; margin-top:14px; font-size:13px; color:rgba(255,255,255,.6);}
.footer-col h4{color:#fff; font-size:14px; font-weight:600; margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{color:rgba(255,255,255,.72); font-size:14px;}
.footer-col a:hover{color:#fff; text-decoration:underline; text-underline-offset:3px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12); padding:20px 0 32px; font-size:13px; color:rgba(255,255,255,.55);
  display:flex; flex-wrap:wrap; gap:10px; justify-content:space-between;
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:1023px){
  .nav-cards{display:none;}
  .nav-actions .nav-text-link,.nav-actions .btn-primary{display:none;}
  .nav-toggle{display:inline-flex;}
  .cat-hero-grid{grid-template-columns:1fr; gap:24px;}
  .hero-figure img{min-height:240px; max-height:280px;}
  .footer-top{grid-template-columns:1fr 1fr; gap:28px;}
}
@media (max-width:860px){
  .compare-head{display:none;}
  .compare-row{display:block; border-bottom:1px solid var(--line); padding:6px 0;}
  .compare-row:nth-child(even){background:#FAFCFD;}
  .compare-cell{padding:10px 20px; display:flex; gap:12px;}
  .compare-cell::before{
    content:attr(data-label); flex:0 0 88px; font-size:13px; font-weight:600; color:var(--brand);
  }
  .compare-cell:first-child{padding-top:18px;}
  .compare-cell:last-child{padding-bottom:18px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .site-header{padding:10px 0;}
  .nav-panel{border-radius:16px; padding:10px 12px; min-height:64px; gap:10px;}
  .brand-mark{width:40px; height:40px;}
  .brand-text strong{font-size:14px;}
  .brand-text small{font-size:11px;}
  .cat-hero h1{font-size:clamp(26px,7vw,34px);}
  .cat-hero .lead{font-size:16px;}
  .stat{min-width:calc(50% - 6px); flex:1 1 calc(50% - 6px); padding:10px 12px;}
  .cta-bar{padding:24px 20px;}
  .cta-bar .cta-actions{width:100%;}
  .cta-bar .btn{width:100%;}
  .footer-top{grid-template-columns:1fr; padding:48px 0 28px;}
  .footer-bottom{flex-direction:column; gap:6px;}
}
@media (max-width:519px){
  .related-grid{grid-template-columns:1fr;}
  .tl-item{padding-left:48px;}
  .timeline::before{left:15px;}
  .tl-dot{left:2px;}
}