/* roulang page: index */
:root{
  --brand:#2C5C8F;
  --brand-dark:#234A76;
  --accent:#0E8A7D;
  --warm:#E8B75C;
  --bg:#F5F7FA;
  --card:#FFFFFF;
  --ink:#1C2430;
  --muted:#5A6675;
  --line:#E3E8EF;
  --danger:#D1534B;
  --footer:#14304E;
  --r-card:14px;
  --r-ctrl:10px;
  --sh-card:0 1px 2px rgba(16,32,54,.04), 0 8px 24px -12px rgba(16,32,54,.12);
  --sh-hover:0 2px 6px rgba(16,32,54,.06), 0 16px 34px -16px rgba(16,32,54,.22);
  --ease:180ms ease;
  --gap:24px;
  --section:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

/* ---------- 布局骨架 ---------- */
.layout{min-height:100vh}
.sidebar{
  position:fixed;top:0;bottom:0;left:0;width:240px;
  background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;padding:20px 16px 16px;
  z-index:40;overflow-y:auto;
}
.main{margin-left:240px;min-width:0}
.container{max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:var(--section) 0}
.section.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* ---------- 侧栏品牌与导航 ---------- */
.brand{height:72px;display:flex;align-items:center;padding:0 8px;margin-bottom:12px}
.brand-logo{display:flex;align-items:center;gap:10px;min-width:0}
.brand-mark{
  flex:0 0 auto;width:36px;height:36px;border-radius:11px;
  background:linear-gradient(160deg,var(--brand),#3C74AC);color:#fff;
  display:grid;place-items:center;font-size:16px;font-weight:600;letter-spacing:.02em;
}
.brand-text{
  font-size:14px;font-weight:600;line-height:1.35;color:var(--ink);
  letter-spacing:.01em;
}
.main-nav{display:flex;flex-direction:column;gap:6px;margin-top:8px}
.nav-item{
  display:flex;align-items:center;gap:10px;height:44px;padding:0 12px;
  border-radius:var(--r-ctrl);font-size:15px;color:#37455A;
  border-left:3px solid transparent;transition:background var(--ease),color var(--ease);
}
.nav-item:hover{background:#F2F6FA;color:var(--brand-dark)}
.nav-item.active{background:#EEF4FA;color:var(--brand-dark);font-weight:500;border-left-color:var(--brand)}
.nav-icon{width:18px;height:18px;flex:0 0 auto;opacity:.85}
.side-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line);font-size:12px;color:var(--muted);line-height:1.7}
.side-foot a{color:var(--brand);font-size:13px;display:inline-block;margin-bottom:6px}
.side-foot a:hover{color:var(--accent)}

/* ---------- 移动端顶栏 ---------- */
.topbar{
  display:none;align-items:center;gap:12px;height:56px;padding:0 16px;
  background:#fff;border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:30;
}
.topbar .brand-text{font-size:14px}
.nav-toggle{
  width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  background:#fff;display:grid;place-items:center;cursor:pointer;
  transition:border-color var(--ease),background var(--ease);
}
.nav-toggle:hover{border-color:var(--brand);background:#F4F8FC}
.scrim{
  position:fixed;inset:0;background:rgba(16,32,54,.36);
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);z-index:35;
}
.scrim.show{opacity:1;visibility:visible}

/* ---------- 通用元素 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 12px;border-radius:999px;background:#EEF4FA;color:var(--brand-dark);
  font-size:13px;letter-spacing:.04em;
}
.section-head{display:flex;flex-direction:column;gap:14px;margin-bottom:40px;max-width:760px}
.section-head h2{font-size:28px;line-height:1.38;font-weight:600;letter-spacing:-.01em}
.section-head p{color:var(--muted);font-size:15px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-ctrl);border:1px solid transparent;
  font-size:15px;font-weight:500;cursor:pointer;white-space:nowrap;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 18px -10px rgba(44,92,143,.75)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 10px 22px -12px rgba(35,74,118,.85)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--brand);border-color:#C7D8E7}
.btn-ghost:hover{border-color:var(--brand);background:#F3F8FC;transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.link-more{color:var(--brand);font-size:14px;font-weight:500;display:inline-flex;align-items:center;gap:6px}
.link-more::after{content:"→";transition:transform var(--ease)}
.post-card:hover .link-more::after{transform:translateX(3px)}
.tag{
  display:inline-flex;align-items:center;align-self:flex-start;
  padding:3px 10px;border-radius:999px;background:#EEF4FA;color:var(--brand-dark);
  font-size:12px;line-height:1.6;
}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:#D6E0EA}
.num{font-variant-numeric:tabular-nums}

/* ---------- Hero ---------- */
.hero{padding:64px 0 56px}
.hero-grid{display:grid;grid-template-columns:1fr;gap:40px;align-items:center}
.hero h1{font-size:30px;line-height:1.24;font-weight:600;letter-spacing:-.015em;margin-top:18px}
.hero-sub{margin-top:18px;font-size:17px;color:var(--muted);max-width:32em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-note{margin-top:20px;font-size:14px;color:var(--muted);display:flex;align-items:center;gap:8px}
.hero-note::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);flex:0 0 auto}
.hero-visual{position:relative}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);
  border:1px solid var(--line);box-shadow:var(--sh-card);
  background:linear-gradient(135deg,#E9EEF5,#F7F9FC);
}
.float-card{
  position:absolute;right:-8px;bottom:-18px;background:#fff;
  border:1px solid var(--line);border-radius:12px;padding:14px 18px;
  box-shadow:var(--sh-hover);min-width:170px;
}
.float-label{display:block;font-size:12px;color:var(--muted)}
.float-value{display:block;font-size:26px;font-weight:600;color:var(--brand-dark);line-height:1.3}
.float-trend{display:inline-block;margin-top:4px;font-size:12px;color:var(--accent);background:rgba(14,138,125,.1);padding:2px 8px;border-radius:999px}

/* ---------- KPI ---------- */
.kpi-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--gap)}
.kpi{padding:26px 24px}
.kpi-num{font-size:34px;font-weight:600;line-height:1.2;color:var(--brand-dark)}
.kpi-num span{font-size:18px;font-weight:500;color:var(--muted);margin-left:2px}
.kpi-label{margin-top:6px;font-size:15px;color:var(--ink)}
.kpi-desc{margin-top:8px;font-size:13px;color:var(--muted);line-height:1.6}
.badge{
  display:inline-block;margin-top:12px;font-size:12px;padding:2px 9px;border-radius:999px;
  background:rgba(14,138,125,.1);color:var(--accent);
}
.badge.warm{background:rgba(232,183,92,.18);color:#8A6414}

/* ---------- 服务矩阵 ---------- */
.matrix{display:grid;gap:var(--gap)}
.matrix-main{
  display:grid;grid-template-columns:1fr;overflow:hidden;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-card);
  transition:box-shadow var(--ease),border-color var(--ease);
}
.matrix-main:hover{box-shadow:var(--sh-hover);border-color:#D6E0EA}
.matrix-main .body{padding:32px}
.matrix-main h3{font-size:22px;font-weight:600;line-height:1.45;margin-bottom:14px}
.matrix-main p{color:var(--muted);font-size:15px;margin-bottom:20px}
.matrix-main img{width:100%;height:100%;min-height:220px;object-fit:cover;background:linear-gradient(135deg,#E9EEF5,#F7F9FC)}
.matrix-small{display:grid;grid-template-columns:1fr;gap:var(--gap)}
.mcard{padding:26px 24px;display:flex;flex-direction:column;gap:12px}
.mcard h3{font-size:18px;font-weight:600}
.mcard p{font-size:14px;color:var(--muted);line-height:1.75}
.icon-box{
  width:44px;height:44px;border-radius:12px;background:#EEF4FA;color:var(--brand);
  display:grid;place-items:center;
}
.mcard:hover .icon-box{background:#E4EEF8;color:var(--brand-dark)}

/* ---------- 流程 ---------- */
.steps{display:grid;gap:var(--gap);grid-template-columns:1fr}
.step{display:flex;gap:18px;padding:24px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-card);transition:transform var(--ease),box-shadow var(--ease)}
.step:hover{transform:translateY(-2px);box-shadow:var(--sh-hover)}
.step-no{
  flex:0 0 auto;width:40px;height:40px;border-radius:12px;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-weight:600;font-size:16px;
}
.step.no-4 .step-no{background:var(--accent)}
.step h3{font-size:17px;font-weight:600;margin-bottom:6px}
.step p{font-size:14px;color:var(--muted);line-height:1.75}

/* ---------- 对比 ---------- */
.compare{display:grid;gap:var(--gap);grid-template-columns:1fr}
.compare-panel{padding:28px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-card)}
.compare-panel.good{background:#F4FBF9;border-color:#CFE3DF}
.compare-panel h3{font-size:18px;font-weight:600;margin-bottom:16px;display:flex;align-items:center;gap:10px}
.compare-panel h3::before{content:"";width:8px;height:8px;border-radius:2px;background:#C3CEDB}
.compare-panel.good h3::before{background:var(--accent)}
.compare-list li{position:relative;padding-left:22px;font-size:15px;color:#37455A;margin-bottom:12px;line-height:1.75}
.compare-list li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;background:#D6DEE8}
.compare-panel.good .compare-list li::before{background:var(--accent)}
.bars{margin-top:36px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-card)}
.bar-row{margin-top:20px}
.bar-row:first-of-type{margin-top:0}
.bar-head{display:flex;justify-content:space-between;font-size:14px;margin-bottom:8px}
.bar-head strong{font-weight:600;font-variant-numeric:tabular-nums;color:var(--brand-dark)}
.bar-track{height:10px;border-radius:999px;background:#E9EEF4;overflow:hidden}
.bar-fill{height:100%;border-radius:999px;background:var(--brand);transition:width .4s ease}
.bar-fill.teal{background:var(--accent)}
.bar-fill.warm{background:var(--warm)}

/* ---------- 最新信息 ---------- */
.post-grid{display:grid;grid-template-columns:1fr;gap:var(--gap)}
.post-card{
  display:flex;flex-direction:column;gap:12px;padding:24px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-card);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:#D6E0EA}
.post-title{font-size:18px;font-weight:500;line-height:1.55}
.post-card:hover .post-title{color:var(--brand);text-decoration:underline;text-underline-offset:4px}
.post-summary{
  font-size:14px;color:var(--muted);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line)}
.post-foot time{font-size:13px;color:var(--muted)}
.empty-state{
  grid-column:1/-1;padding:56px 24px;text-align:center;background:#fff;
  border:1px dashed #C9D6E3;border-radius:var(--r-card);
}
.empty-ill{
  width:88px;height:88px;margin:0 auto 18px;border-radius:20px;
  background:linear-gradient(135deg,#E9EEF5,#F7F9FC);border:1px solid var(--line);
}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:18px}

/* ---------- 反馈 ---------- */
.voice-grid{display:grid;grid-template-columns:1fr;gap:var(--gap)}
.voice{padding:26px 24px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-card);transition:transform var(--ease),box-shadow var(--ease)}
.voice:hover{transform:translateY(-2px);box-shadow:var(--sh-hover)}
.voice p{font-size:15px;line-height:1.85;color:#37455A}
.voice-meta{display:flex;align-items:center;gap:10px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line)}
.avatar{width:34px;height:34px;border-radius:50%;background:#EEF4FA;color:var(--brand);display:grid;place-items:center;font-size:13px;font-weight:600}
.voice-meta span{font-size:13px;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq{max-width:920px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;
  transition:box-shadow var(--ease),border-color var(--ease);
}
.faq-item[open]{border-color:#CFE0EE;box-shadow:inset 3px 0 0 var(--accent),var(--sh-card)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:500;cursor:pointer;list-style:none;
}
.faq-q::-webkit-details-marker{display:none}
.faq-q .plus{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;background:#EEF4FA;color:var(--brand);
  display:grid;place-items:center;font-size:15px;line-height:1;transition:transform var(--ease),background var(--ease);
}
.faq-item[open] .plus{transform:rotate(45deg);background:#E1F1EE;color:var(--accent)}
.faq-a{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--muted)}

/* ---------- CTA 表单 ---------- */
.cta-wrap{
  display:grid;grid-template-columns:1fr;gap:32px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:36px;box-shadow:var(--sh-card);
}
.cta-copy h2{font-size:26px;font-weight:600;line-height:1.4;margin-bottom:12px}
.cta-copy p{color:var(--muted);font-size:15px;margin-bottom:22px}
.cta-points li{position:relative;padding-left:22px;font-size:15px;color:#37455A;margin-bottom:10px}
.cta-points li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;background:var(--accent)}
.form-grid{display:grid;grid-template-columns:1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:14px;color:#37455A}
.field input,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--r-ctrl);background:#FBFCFE;
  padding:0 14px;height:48px;font-size:15px;transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.field textarea{height:110px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input:hover,.field textarea:hover{border-color:#C2D2E2}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);background:#fff;
  box-shadow:0 0 0 3px rgba(44,92,143,.12);
}
.field .hint{font-size:12px;color:var(--muted)}
.form-foot{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:4px}
.form-note{font-size:13px;color:var(--muted)}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- 页脚 ---------- */
.footer{background:var(--footer);color:#D3E0EC;margin-top:0;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{background:rgba(255,255,255,.12)}
.footer-brand strong{color:#fff;font-size:16px;font-weight:600}
.footer p{font-size:14px;line-height:1.85;color:#A9BCCE;max-width:30em}
.footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-list li{margin-bottom:10px}
.footer-list a{font-size:14px;color:#B9CADC;transition:color var(--ease)}
.footer-list a:hover{color:#5ED0C0}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);margin-top:48px;padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#8FA6BC;
}

/* ---------- 响应式 ---------- */
@media (min-width:640px){
  .hero h1{font-size:36px}
  .container{padding:0 32px}
  .kpi-grid{grid-template-columns:repeat(2,1fr)}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .voice-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .form-grid{grid-template-columns:repeat(2,1fr)}
  .field.full{grid-column:1/-1}
}
@media (min-width:900px){
  .matrix-main{grid-template-columns:1.15fr .85fr}
  .matrix-small{grid-template-columns:repeat(3,1fr)}
  .compare{grid-template-columns:1fr 1fr}
  .kpi-grid{grid-template-columns:repeat(4,1fr)}
  .cta-wrap{grid-template-columns:1fr 1.15fr;gap:48px;padding:44px}
}
@media (min-width:1024px){
  .topbar{display:none}
  .hero{padding:80px 0 64px}
  .hero-grid{grid-template-columns:1.05fr .95fr;gap:56px}
  .hero h1{font-size:40px}
  .voice-grid{grid-template-columns:repeat(3,1fr)}
  .post-grid{grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr}
}
@media (min-width:1280px){
  .sidebar{width:256px;padding:22px 18px 18px}
  .main{margin-left:256px}
}
@media (max-width:1023px){
  .sidebar{transform:translateX(-100%);transition:transform 220ms ease;width:280px;box-shadow:0 20px 50px -20px rgba(16,32,54,.4)}
  .sidebar.open{transform:none}
  .main{margin-left:0}
  .topbar{display:flex}
  .container{padding:0 20px}
}
@media (max-width:640px){
  :root{--section:56px;--gap:18px}
  .hero h1{font-size:28px}
  .section-head h2{font-size:23px}
  .float-card{right:8px;bottom:-14px;min-width:150px;padding:12px 14px}
  .cta-wrap{padding:24px}
  .footer{padding-top:48px}
  .container{padding:0 16px}
}

/* roulang page: article */
:root{
    --primary:#2C5C8F;
    --primary-dark:#234A76;
    --primary-soft:#EAF1F8;
    --teal:#0E8A7D;
    --teal-soft:#E6F4F2;
    --sand:#E8B75C;
    --bg:#F5F7FA;
    --card:#FFFFFF;
    --ink:#1C2430;
    --muted:#5A6675;
    --line:#E3E8EF;
    --footer:#14304E;
    --danger:#D1534B;
    --r-card:14px;
    --r-ctl:10px;
    --shadow-card:0 1px 2px rgba(16,32,54,.04), 0 8px 24px -12px rgba(16,32,54,.12);
    --shadow-hover:0 2px 4px rgba(16,32,54,.06), 0 16px 32px -14px rgba(16,32,54,.20);
    --sidebar-w:256px;
    --gap:24px;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body{
    margin:0;background:var(--bg);color:var(--ink);
    font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    font-size:16px;line-height:1.75;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  ul,ol{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4,p{margin:0;}
  button{font:inherit;cursor:pointer;}
  :focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

  /* ---------- App shell ---------- */
  .app-shell{display:block;}
  .sidebar{
    position:fixed;top:0;left:0;width:var(--sidebar-w);height:100vh;
    background:var(--card);border-right:1px solid var(--line);
    display:flex;flex-direction:column;padding:0 16px 20px;z-index:60;
    transform:translateX(-100%);transition:transform 220ms ease;overflow-y:auto;
  }
  .sidebar.open{transform:translateX(0);}
  .sidebar-head{height:72px;display:flex;align-items:center;padding:0 8px;border-bottom:1px solid var(--line);margin-bottom:14px;}
  .brand-logo{display:flex;align-items:center;gap:10px;}
  .brand-mark{
    width:34px;height:34px;flex:none;border-radius:10px;background:var(--primary);color:#fff;
    display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:600;letter-spacing:0;
  }
  .brand-text{font-size:14px;font-weight:600;line-height:1.35;color:var(--ink);max-width:150px;}
  .side-label{font-size:12px;color:var(--muted);letter-spacing:.08em;padding:8px 10px 6px;}
  .side-nav{display:flex;flex-direction:column;gap:4px;}
  .side-nav a{
    position:relative;display:flex;align-items:center;gap:10px;min-height:44px;
    padding:0 12px;border-radius:var(--r-ctl);font-size:15px;color:var(--ink);
    transition:background 180ms ease,color 180ms ease;
  }
  .side-nav a svg{width:18px;height:18px;flex:none;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;color:var(--muted);}
  .side-nav a:hover{background:var(--primary-soft);color:var(--primary-dark);}
  .side-nav a:hover svg{color:var(--primary);}
  .side-nav a.active{background:var(--primary-soft);color:var(--primary-dark);font-weight:500;}
  .side-nav a.active svg{color:var(--primary);}
  .side-nav a.active::before{
    content:"";position:absolute;left:-16px;top:10px;bottom:10px;width:3px;border-radius:0 3px 3px 0;background:var(--primary);
  }
  .sidebar-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);font-size:12px;color:var(--muted);line-height:1.7;}
  .sidebar-foot a{color:var(--primary);}
  .sidebar-foot a:hover{color:var(--teal);text-decoration:underline;}

  .overlay{
    position:fixed;inset:0;background:rgba(16,32,54,.36);z-index:55;
    opacity:0;visibility:hidden;transition:opacity 200ms ease;
  }
  .overlay.show{opacity:1;visibility:visible;}

  .app-main{padding-top:56px;min-height:100vh;display:flex;flex-direction:column;}
  .topbar{
    position:fixed;top:0;left:0;right:0;height:56px;z-index:50;
    background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);
    display:flex;align-items:center;gap:8px;padding:0 14px;
  }
  .nav-toggle{
    width:40px;height:40px;display:flex;align-items:center;justify-content:center;
    background:transparent;border:1px solid var(--line);border-radius:var(--r-ctl);color:var(--ink);
    transition:background 180ms ease,border-color 180ms ease;
  }
  .nav-toggle:hover{background:var(--primary-soft);border-color:#CFDCEA;}
  .topbar .brand-text{font-size:14px;}

  @media (min-width:1024px){
    .sidebar{transform:translateX(0);}
    .app-main{margin-left:var(--sidebar-w);padding-top:0;}
    .topbar{display:none;}
    .overlay{display:none;}
  }
  @media (min-width:1280px){
    :root{--sidebar-w:256px;}
  }

  /* ---------- Article layout ---------- */
  .article-wrap{padding:32px 0 0;}
  .crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:20px;}
  .crumbs a{color:var(--muted);}
  .crumbs a:hover{color:var(--primary);text-decoration:underline;}
  .crumbs span.sep{color:#B7C1CE;}
  .crumbs .current{color:var(--ink);}
  .section-kicker{
    display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:500;color:var(--primary);
    background:var(--primary-soft);border-radius:999px;padding:5px 14px;margin-bottom:16px;
  }
  .section-kicker::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--teal);}
  .article-h1{
    font-size:28px;line-height:1.35;font-weight:600;letter-spacing:-.01em;margin-bottom:18px;max-width:860px;
  }
  .meta-row{
    display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
    font-size:14px;color:var(--muted);padding-bottom:22px;border-bottom:1px solid var(--line);margin-bottom:32px;
  }
  .meta-row .chip{
    background:#F1F4F8;border:1px solid var(--line);border-radius:999px;padding:3px 12px;font-size:13px;color:var(--primary-dark);
  }
  .meta-dot{display:inline-flex;align-items:center;gap:7px;}
  .meta-dot svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}

  .article-grid{display:grid;grid-template-columns:1fr;gap:40px;padding-bottom:8px;}
  @media (min-width:1280px){
    .article-grid{grid-template-columns:minmax(0,1fr) 300px;gap:56px;align-items:start;}
  }
  .article-panel{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--shadow-card);padding:28px 24px;
  }
  @media (min-width:768px){.article-panel{padding:40px 40px 44px;}}

  .article-body{max-width:760px;font-size:16px;line-height:1.9;color:var(--ink);}
  .article-body > *:first-child{margin-top:0;}
  .article-body p{margin:0 0 20px;}
  .article-body h2{
    font-size:23px;line-height:1.5;font-weight:600;margin:40px 0 16px;padding-left:14px;
    border-left:3px solid var(--primary);
  }
  .article-body h3{font-size:19px;font-weight:600;line-height:1.6;margin:28px 0 12px;color:var(--ink);}
  .article-body h4{font-size:16px;font-weight:600;margin:22px 0 10px;}
  .article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px;}
  .article-body ul{list-style:none;}
  .article-body ul li{position:relative;padding-left:16px;margin-bottom:9px;}
  .article-body ul li::before{
    content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--teal);
  }
  .article-body ol{list-style:decimal;}
  .article-body ol li{margin-bottom:9px;padding-left:4px;}
  .article-body blockquote{
    margin:0 0 22px;padding:16px 20px;background:var(--teal-soft);
    border-left:3px solid var(--teal);border-radius:0 var(--r-ctl) var(--r-ctl) 0;color:#2A3B45;
  }
  .article-body blockquote p:last-child{margin-bottom:0;}
  .article-body img{border-radius:var(--r-card);border:1px solid var(--line);margin:22px 0;}
  .article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
  .article-body a:hover{color:var(--teal);}
  .article-body table{width:100%;border-collapse:collapse;margin:0 0 22px;font-size:15px;}
  .article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;vertical-align:top;}
  .article-body th{background:#F4F7FA;font-weight:600;}
  .article-body code{
    background:#F1F4F8;border:1px solid var(--line);border-radius:6px;padding:1px 6px;font-size:14px;
  }
  .article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}

  .empty-state{
    border:1px dashed #CFDCEA;border-radius:var(--r-card);padding:40px 24px;text-align:center;background:#FBFCFE;
  }
  .empty-state .empty-ico{
    width:56px;height:56px;margin:0 auto 16px;border-radius:16px;background:var(--primary-soft);
    display:flex;align-items:center;justify-content:center;color:var(--primary);
  }
  .empty-state h2{font-size:20px;margin-bottom:8px;}
  .empty-state p{color:var(--muted);font-size:15px;margin-bottom:20px;}

  .aside-card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--shadow-card);padding:20px;margin-bottom:20px;
  }
  .aside-card h3{font-size:15px;font-weight:600;margin-bottom:12px;}
  .aside-links{display:flex;flex-direction:column;gap:2px;}
  .aside-links a{
    display:flex;align-items:center;justify-content:space-between;gap:8px;min-height:40px;
    padding:0 10px;border-radius:var(--r-ctl);font-size:14px;color:var(--muted);
    transition:background 180ms ease,color 180ms ease;
  }
  .aside-links a:hover{background:var(--primary-soft);color:var(--primary-dark);}
  .aside-links a::after{content:"›";color:#ADB9C7;font-size:16px;}
  .aside-cover{border-radius:var(--r-ctl);overflow:hidden;aspect-ratio:16/10;border:1px solid var(--line);background:#EEF2F7;}
  .aside-cover img{width:100%;height:100%;object-fit:cover;}
  .aside-note{font-size:13px;color:var(--muted);line-height:1.8;margin-top:12px;}

  /* ---------- Related ---------- */
  .section{padding:56px 0;}
  @media (min-width:1024px){.section{padding:72px 0;}}
  .section-head{max-width:640px;margin-bottom:32px;}
  .section-head h2{font-size:24px;font-weight:600;line-height:1.4;margin-bottom:10px;}
  .section-head p{color:var(--muted);font-size:15px;}
  .card-grid{display:grid;grid-template-columns:1fr;gap:var(--gap);}
  @media (min-width:640px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
  @media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
  .card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--shadow-card);overflow:hidden;display:flex;flex-direction:column;
    transition:transform 180ms ease,box-shadow 180ms ease,border-color 180ms ease;
  }
  .card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#D6E1EC;}
  .card-media{aspect-ratio:16/9;background:linear-gradient(135deg,#EEF2F7,#E1E9F1);overflow:hidden;}
  .card-media img{width:100%;height:100%;object-fit:cover;}
  .card-body{padding:20px;display:flex;flex-direction:column;flex:1;}
  .badge{
    display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:500;
    background:var(--primary-soft);color:var(--primary-dark);border-radius:999px;padding:4px 11px;margin-bottom:12px;
  }
  .card h3{font-size:17px;font-weight:600;line-height:1.55;margin-bottom:8px;}
  .card h3 a:hover{color:var(--primary);text-decoration:underline;}
  .card p{font-size:14px;color:var(--muted);line-height:1.75;margin-bottom:16px;}
  .card-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);display:flex;align-items:center;justify-content:space-between;gap:10px;}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 22px;
    border-radius:var(--r-ctl);font-size:15px;font-weight:500;border:1px solid transparent;
    transition:background 180ms ease,color 180ms ease,transform 180ms ease,border-color 180ms ease;
  }
  .btn-primary{background:var(--primary);color:#fff;}
  .btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);}
  .btn-primary:active{transform:translateY(0);background:#1D3F65;}
  .btn-ghost{background:#fff;color:var(--primary);border-color:#C9D8E7;}
  .btn-ghost:hover{background:var(--primary-soft);border-color:var(--primary);transform:translateY(-1px);}
  .btn:disabled,.btn[aria-disabled="true"]{opacity:.45;pointer-events:none;}
  .text-link{
    display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;color:var(--primary);
    border-bottom:1px solid rgba(44,92,143,.35);padding-bottom:2px;
  }
  .text-link:hover{color:var(--teal);border-color:var(--teal);}

  /* ---------- CTA ---------- */
  .cta-band{
    background:var(--card);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow-card);
    padding:32px 24px;display:grid;grid-template-columns:1fr;gap:26px;align-items:center;
  }
  @media (min-width:900px){.cta-band{grid-template-columns:1.25fr 1fr;padding:44px;gap:44px;}}
  .cta-band h2{font-size:26px;line-height:1.4;font-weight:600;margin-bottom:12px;}
  .cta-band p{color:var(--muted);font-size:15px;margin-bottom:22px;}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
  .form-grid{display:grid;grid-template-columns:1fr;gap:16px;}
  @media (min-width:640px){.form-grid{grid-template-columns:1fr 1fr;}}
  .form-field{display:flex;flex-direction:column;gap:7px;}
  .form-field.full{grid-column:1/-1;}
  .form-field label{font-size:14px;color:var(--ink);font-weight:500;}
  .form-field input,.form-field textarea{
    width:100%;min-height:48px;padding:11px 14px;border:1px solid var(--line);border-radius:var(--r-ctl);
    background:#FBFCFE;color:var(--ink);font-size:15px;font-family:inherit;transition:border-color 180ms ease,box-shadow 180ms ease;
  }
  .form-field textarea{min-height:96px;resize:vertical;}
  .form-field input:focus,.form-field textarea:focus{
    outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(44,92,143,.14);background:#fff;
  }
  .form-hint{font-size:12.5px;color:var(--muted);}
  .form-actions{grid-column:1/-1;display:flex;flex-wrap:wrap;align-items:center;gap:14px;}

  /* ---------- FAQ ---------- */
  .faq-list{display:grid;gap:12px;max-width:920px;}
  .faq-item{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--shadow-card);overflow:hidden;transition:border-color 180ms ease;
  }
  .faq-item[open]{border-color:#CFDCEA;}
  .faq-item summary{
    list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 20px;font-size:16px;font-weight:500;position:relative;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary::before{
    content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:0 3px 3px 0;
    background:var(--teal);opacity:0;transition:opacity 180ms ease;
  }
  .faq-item[open] summary::before{opacity:1;}
  .faq-icon{
    width:24px;height:24px;flex:none;border-radius:50%;border:1px solid var(--line);
    display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:15px;
    transition:transform 180ms ease,background 180ms ease;
  }
  .faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--primary-soft);}
  .faq-answer{padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--muted);}

  /* ---------- Footer ---------- */
  .footer{margin-top:auto;background:var(--footer);color:#D5DEE8;padding:56px 0 24px;}
  .footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
  @media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
  @media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}}
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;color:#fff;}
  .footer-brand .brand-mark{background:#2F6395;}
  .footer-brand strong{font-size:15px;font-weight:600;}
  .footer p{font-size:14px;line-height:1.85;color:#A7B7C9;max-width:340px;}
  .footer h4{font-size:14px;color:#fff;font-weight:600;margin-bottom:14px;}
  .footer-list{display:flex;flex-direction:column;gap:10px;}
  .footer-list a{font-size:14px;color:#A7B7C9;transition:color 180ms ease;}
  .footer-list a:hover{color:#4FC0B2;}
  .footer-bottom{
    margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
    display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:#8FA3B8;
  }

  .back-top{
    position:fixed;right:20px;bottom:24px;width:46px;height:46px;border-radius:50%;
    background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow-card);
    display:flex;align-items:center;justify-content:center;color:var(--primary);z-index:40;
    opacity:0;visibility:hidden;transition:opacity 180ms ease,transform 180ms ease;
  }
  .back-top.show{opacity:1;visibility:visible;}
  .back-top:hover{background:var(--primary-soft);transform:translateY(-2px);}

/* roulang page: category1 */
:root{
  --primary:#2C5C8F;
  --primary-dark:#234A76;
  --primary-soft:#EAF1F8;
  --accent:#0E8A7D;
  --accent-soft:#E4F3F1;
  --gold:#E8B75C;
  --bg:#F5F7FA;
  --card:#FFFFFF;
  --footer-bg:#14304E;
  --text:#1C2430;
  --muted:#5A6675;
  --line:#E3E8EF;
  --danger:#D1534B;
  --r-card:14px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-card:0 1px 2px rgba(16,32,54,.04), 0 8px 24px -12px rgba(16,32,54,.12);
  --sh-hover:0 2px 4px rgba(16,32,54,.06), 0 18px 34px -14px rgba(16,32,54,.2);
  --side-w:240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul{padding-left:0;list-style:none}
h1,h2,h3{line-height:1.35;font-weight:600}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
.no-scroll{overflow:hidden}
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;
  background:var(--primary);color:#fff;padding:10px 16px;border-radius:0 0 var(--r-btn) 0;
}
.skip-link:focus{left:0}

/* ---------- 容器 ---------- */
.container{max-width:1200px;margin:0 auto;width:100%}

/* ---------- 移动端顶栏 ---------- */
.topbar{
  position:sticky;top:0;z-index:90;
  display:flex;align-items:center;gap:12px;
  height:56px;padding:0 16px;
  background:#fff;border-bottom:1px solid var(--line);
}
.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;margin-left:-8px;
  background:transparent;border:1px solid var(--line);border-radius:var(--r-btn);
  color:var(--primary);cursor:pointer;transition:background .18s ease,border-color .18s ease;
}
.nav-toggle:hover{background:var(--primary-soft);border-color:#CFDDEB}
.brand-logo{display:flex;align-items:center;gap:10px;min-height:44px}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;flex:0 0 32px;
  background:var(--primary);color:#fff;
  border-radius:9px;font-size:15px;font-weight:600;letter-spacing:0;
}
.brand-text{font-size:15px;font-weight:600;color:var(--text);letter-spacing:.2px}

/* ---------- 左侧 App Shell ---------- */
.sidebar{
  position:fixed;left:0;top:0;bottom:0;z-index:120;
  width:280px;padding:22px 18px;
  background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;gap:18px;
  transform:translateX(-100%);
  transition:transform .22s ease;
  overflow-y:auto;
}
.sidebar.is-open{transform:translateX(0)}
.sidebar-head{display:flex;align-items:center;gap:10px;min-height:72px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.sidebar-head .brand-text{font-size:15px;line-height:1.35}
.sidebar-nav{display:flex;flex-direction:column;gap:6px}
.side-title{
  font-size:12px;font-weight:500;color:var(--muted);
  letter-spacing:1px;padding:4px 10px 6px;
}
.side-link{
  position:relative;display:flex;align-items:center;gap:10px;
  min-height:44px;padding:8px 12px;
  border-radius:var(--r-btn);
  font-size:15px;color:#33404F;
  transition:background .18s ease,color .18s ease;
}
.side-link:hover{background:var(--primary-soft);color:var(--primary-dark)}
.side-link.is-active{background:var(--primary-soft);color:var(--primary-dark);font-weight:600}
.side-link.is-active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;
  border-radius:2px;background:var(--primary);
}
.side-link .dot{width:6px;height:6px;border-radius:50%;background:#C6D2E0;flex:0 0 6px}
.side-link.is-active .dot{background:var(--primary)}
.sidebar-foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
.sidebar-foot a{display:block;padding:8px 2px;color:var(--muted);transition:color .18s ease}
.sidebar-foot a:hover{color:var(--accent)}
.sidebar-foot .copy{padding:10px 2px 0;font-size:12px;color:#8792A1}

.backdrop{
  position:fixed;inset:0;z-index:110;
  background:rgba(16,32,54,.36);
  opacity:0;pointer-events:none;transition:opacity .2s ease;
}
.backdrop.is-open{opacity:1;pointer-events:auto}

/* ---------- 主区域 ---------- */
.main{margin-left:0;padding:20px 16px 0}
.footer{margin-left:0}

/* ---------- Hero ---------- */
.hero{
  background:linear-gradient(180deg,#FFFFFF 0%,#F7FAFD 100%);
  border:1px solid var(--line);border-radius:18px;
  padding:28px 22px;margin-bottom:40px;
}
.hero-grid{display:grid;grid-template-columns:1fr;gap:28px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 12px;border-radius:var(--r-pill);
  background:var(--accent-soft);color:#0B6A60;
  font-size:13px;font-weight:500;
}
.hero h1{font-size:28px;line-height:1.28;margin:16px 0 12px;letter-spacing:-.2px}
.hero-sub{font-size:16px;color:var(--muted);max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.trust-line{margin-top:14px;font-size:13px;color:var(--muted)}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-card);border:1px solid var(--line);
  background:linear-gradient(135deg,#EDF2F7,#E2E9F1);
}
.float-card{
  position:absolute;right:10px;bottom:-14px;
  display:flex;align-items:center;gap:12px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);padding:12px 16px;
}
.float-card .num{font-size:22px;font-weight:600;color:var(--accent);font-variant-numeric:tabular-nums}
.float-card .lbl{font-size:12px;color:var(--muted);line-height:1.4}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;
  border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:500;cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--sh-card)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--sh-hover)}
.btn-primary:active{transform:translateY(0);background:#1D3E63}
.btn-ghost{background:#fff;color:var(--primary);border-color:#C9D8E7}
.btn-ghost:hover{border-color:var(--primary);background:var(--primary-soft);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-size:14px;font-weight:500;
  border-bottom:1px solid rgba(44,92,143,.35);
  transition:color .18s ease,border-color .18s ease;
}
.btn-link:hover{color:var(--primary-dark);border-color:var(--primary-dark)}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}

/* ---------- 分类 Tab 条 ---------- */
.tabs-wrap{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:10px;margin-bottom:32px;box-shadow:var(--sh-card);
}
.tabs{display:flex;flex-wrap:wrap;gap:8px}
.tab{
  display:inline-flex;align-items:center;gap:8px;
  min-height:40px;padding:0 16px;border-radius:var(--r-pill);
  font-size:14px;color:var(--muted);background:#F7F9FC;
  border:1px solid transparent;cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.tab:hover{background:var(--primary-soft);color:var(--primary-dark)}
.tab.is-active{background:var(--primary);color:#fff;border-color:var(--primary)}
.tab.is-active:hover{background:var(--primary-dark)}

/* ---------- 主体布局：左侧标签栏 + 高密度列表 ---------- */
.layout{display:grid;grid-template-columns:1fr;gap:24px;align-items:start}
.tag-rail{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px;box-shadow:var(--sh-card);
}
.rail-title{font-size:13px;font-weight:600;color:var(--muted);letter-spacing:1px;margin-bottom:10px}
.rail-list{display:flex;flex-direction:column;gap:4px}
.rail-link{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  min-height:44px;padding:8px 12px;border-radius:var(--r-btn);
  font-size:14px;color:#3A4757;
  transition:background .18s ease,color .18s ease;
}
.rail-link:hover{background:var(--primary-soft);color:var(--primary-dark)}
.rail-link .cnt{
  font-size:12px;color:var(--muted);background:#F2F5F9;
  border-radius:var(--r-pill);padding:1px 8px;font-variant-numeric:tabular-nums;
}
.content-col{display:flex;flex-direction:column;gap:26px;min-width:0}

/* ---------- 进度核对卡 ---------- */
.progress-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-card);
}
.progress-card h2{font-size:20px;margin-bottom:6px}
.progress-card .lead{font-size:14px;color:var(--muted);margin-bottom:18px}
.bar-row{margin-bottom:14px}
.bar-row:last-child{margin-bottom:0}
.bar-head{display:flex;justify-content:space-between;font-size:14px;margin-bottom:6px}
.bar-head b{font-weight:500}
.bar-head span{color:var(--muted);font-variant-numeric:tabular-nums}
.bar{height:8px;border-radius:var(--r-pill);background:#EEF2F7;overflow:hidden}
.bar-fill{height:100%;border-radius:var(--r-pill);background:var(--primary);transition:width .4s ease}
.bar-fill.is-accent{background:var(--accent)}
.bar-fill.is-gold{background:var(--gold)}

/* ---------- 分组与条目列表 ---------- */
.group{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-card);scroll-margin-top:80px;
}
.group-head{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-bottom:14px;margin-bottom:6px;border-bottom:1px solid var(--line);
}
.group-head h2{font-size:20px}
.group-count{font-size:13px;color:var(--muted);flex:0 0 auto}
.entry-list{display:flex;flex-direction:column}
.entry{
  display:flex;gap:14px;padding:16px 6px;
  border-bottom:1px solid #EEF2F7;
  transition:background .18s ease;
}
.entry:last-child{border-bottom:none}
.entry:hover{background:#FAFCFF}
.entry-no{
  flex:0 0 34px;height:34px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary-soft);color:var(--primary-dark);
  font-size:13px;font-weight:600;font-variant-numeric:tabular-nums;
}
.entry-body{min-width:0}
.entry-title{font-size:16px;font-weight:600;margin-bottom:4px}
.entry-desc{
  font-size:14px;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.entry-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:10px;font-size:12px;color:#8792A1}
.badge{
  display:inline-flex;align-items:center;
  padding:3px 10px;border-radius:var(--r-pill);
  background:var(--primary-soft);color:var(--primary-dark);
  font-size:12px;font-weight:500;
}
.badge.is-accent{background:var(--accent-soft);color:#0B6A60}
.badge.is-gold{background:#FBF1DC;color:#8A6417}

/* ---------- 流程步骤 ---------- */
.steps-wrap{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-card);
}
.steps-wrap h2{font-size:20px;margin-bottom:4px}
.steps-wrap .lead{font-size:14px;color:var(--muted);margin-bottom:20px}
.steps{display:grid;grid-template-columns:1fr;gap:16px}
.step{
  position:relative;padding:18px;
  border:1px solid var(--line);border-radius:var(--r-card);
  background:#FCFDFF;transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.step:hover{box-shadow:var(--sh-hover);transform:translateY(-2px);border-color:#D6E2EE}
.step .idx{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:9px;
  background:var(--accent-soft);color:#0B6A60;
  font-size:13px;font-weight:600;margin-bottom:10px;
}
.step h3{font-size:16px;margin-bottom:6px}
.step p{font-size:14px;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-card)}
.faq h2{font-size:20px;margin-bottom:14px}
.faq details{border-bottom:1px solid #EEF2F7}
.faq details:last-of-type{border-bottom:none}
.faq summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:16px 0 16px 0;font-size:16px;font-weight:500;
  border-left:3px solid transparent;padding-left:0;
  transition:border-color .18s ease,color .18s ease,padding-left .18s ease;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--primary)}
.faq details[open] summary{border-left-color:var(--accent);padding-left:12px;color:var(--primary-dark)}
.faq .icon{
  flex:0 0 20px;width:20px;height:20px;position:relative;
  transition:transform .18s ease;
}
.faq .icon::before,.faq .icon::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
}
.faq .icon::before{left:4px;right:4px;top:9px;height:2px}
.faq .icon::after{top:4px;bottom:4px;left:9px;width:2px;transition:opacity .18s ease}
.faq details[open] .icon{transform:rotate(180deg)}
.faq details[open] .icon::after{opacity:0}
.faq .answer{padding:0 0 18px;font-size:15px;line-height:1.8;color:var(--muted)}

/* ---------- CTA 表单 ---------- */
.cta-band{
  background:#fff;border:1px solid var(--line);border-radius:18px;
  padding:26px 22px;box-shadow:var(--sh-card);
}
.cta-head{display:flex;flex-direction:column;gap:6px;margin-bottom:22px}
.cta-head h2{font-size:22px}
.cta-head p{font-size:14px;color:var(--muted)}
.form-grid{display:grid;grid-template-columns:1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:14px;color:#3A4757;font-weight:500}
.field .req{color:var(--danger)}
.field input,.field select,.field textarea{
  min-height:48px;padding:10px 14px;
  border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;font-size:15px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{min-height:120px;resize:vertical;line-height:1.7}
.field input:hover,.field select:hover,.field textarea:hover{border-color:#CFDDEB}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(44,92,143,.14);
}
.field.is-error input,.field.is-error select,.field.is-error textarea{border-color:var(--danger)}
.field .hint{font-size:12px;color:#8792A1}
.field .err-text{font-size:12px;color:var(--danger);display:none}
.field.is-error .err-text{display:block}
.form-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:20px}
.form-state{font-size:14px;display:none}
.form-state.is-ok{display:inline;color:#0B6A60}
.form-state.is-err{display:inline;color:var(--danger)}
.full{grid-column:1 / -1}

/* ---------- 页脚 ---------- */
.footer{background:var(--footer-bg);color:#C9D6E4;margin-top:56px;padding:48px 0 0}
.footer .container{padding:0 16px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:28px;padding-bottom:34px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px;color:#fff}
.footer-brand .brand-mark{background:#2C5C8F}
.footer-brand strong{font-size:15px;font-weight:600;color:#fff}
.footer h4{font-size:14px;color:#fff;margin-bottom:12px;font-weight:600;letter-spacing:.5px}
.footer p{font-size:14px;line-height:1.8;color:#9FB2C7;max-width:30em}
.footer-list{display:flex;flex-direction:column;gap:2px}
.footer-list a{
  display:inline-block;padding:7px 0;font-size:14px;color:#C9D6E4;
  transition:color .18s ease,transform .18s ease;
}
.footer-list a:hover{color:#4FC7B8;transform:translateX(2px)}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  border-top:1px solid rgba(255,255,255,.12);
  padding:18px 0 24px;font-size:13px;color:#8FA3B8;
}

/* ---------- 响应式 ---------- */
@media (min-width:640px){
  .main{padding:24px 24px 0}
  .hero{padding:34px 30px}
  .hero h1{font-size:32px}
  .steps{grid-template-columns:1fr 1fr}
  .form-grid{grid-template-columns:1fr 1fr}
  .footer .container{padding:0 24px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (min-width:768px){
  .hero h1{font-size:36px}
  .hero-sub{font-size:17px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}
  .entry{padding:18px 8px}
}
@media (min-width:1024px){
  .topbar{display:none}
  .sidebar{width:var(--side-w);transform:translateX(0);box-shadow:none}
  .backdrop{display:none}
  .main{margin-left:var(--side-w);padding:32px 32px 0}
  .footer{margin-left:var(--side-w)}
  .hero{padding:40px 40px;margin-bottom:44px}
  .hero h1{font-size:40px}
  .hero-grid{grid-template-columns:1.15fr .85fr;gap:40px}
  .layout{grid-template-columns:262px minmax(0,1fr)}
  .tag-rail{position:sticky;top:32px}
  .steps{grid-template-columns:repeat(4,1fr)}
  .faq summary{font-size:16px}
}
@media (min-width:1280px){
  :root{--side-w:256px}
  .main{padding:36px 40px 0}
  .hero h1{font-size:40px}
}
@media (max-width:520px){
  .float-card{position:static;margin-top:12px;right:auto;bottom:auto}
  .hero-actions .btn{width:100%}
  .tabs{gap:6px}
  .tab{padding:0 12px;font-size:13px}
}

/* roulang page: category2 */
:root{
  --brand:#2C5C8F;
  --brand-dark:#234A76;
  --brand-soft:#EEF4FA;
  --brand-line:#C7DBEC;
  --accent:#0E8A7D;
  --sand:#E8B75C;
  --bg:#F5F7FA;
  --card:#FFFFFF;
  --hero-bg:#EDF2F8;
  --ink:#1C2430;
  --muted:#5A6675;
  --line:#E3E8EF;
  --danger:#D1534B;
  --footer:#14304E;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-card:0 1px 2px rgba(16,32,54,.04),0 8px 24px -12px rgba(16,32,54,.12);
  --shadow-hover:0 2px 4px rgba(16,32,54,.06),0 14px 32px -14px rgba(16,32,54,.22);
  --sidebar-w:240px;
}
*,*::before,*::after{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:-.01em;}
p{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}

/* ---------- 左侧 App Shell ---------- */
.sidebar{
  position:fixed;
  top:0;bottom:0;left:0;
  width:var(--sidebar-w);
  background:var(--card);
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  padding:0 16px 22px;
  z-index:80;
  transform:translateX(-100%);
  transition:transform .24s ease;
  box-shadow:0 20px 40px -20px rgba(16,32,54,.3);
}
.sidebar.is-open{transform:translateX(0);}
.sidebar-head{height:72px;display:flex;align-items:center;}
.brand-logo{display:flex;align-items:center;gap:10px;}
.brand-mark{
  width:36px;height:36px;flex:0 0 auto;
  border-radius:10px;
  background:var(--brand);
  color:#fff;
  display:grid;place-items:center;
  font-size:18px;font-weight:600;
}
.brand-text{font-size:14px;font-weight:600;line-height:1.35;}
.side-nav{margin-top:18px;display:flex;flex-direction:column;gap:6px;}
.side-link{
  position:relative;
  display:flex;align-items:center;
  min-height:44px;
  padding:8px 14px;
  border-radius:var(--radius-btn);
  color:var(--muted);
  font-size:15px;
  line-height:1.4;
  transition:background .18s ease,color .18s ease;
}
.side-link:hover{background:#F1F5FA;color:var(--brand);}
.side-link:active{background:#E7EFF7;}
.side-link.is-active{background:var(--brand-soft);color:var(--brand);font-weight:600;}
.side-link.is-active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:2px;background:var(--brand);
}
.sidebar-foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--line);font-size:12.5px;color:var(--muted);line-height:1.7;}
.sidebar-foot a{color:var(--brand);}
.sidebar-foot a:hover{color:var(--accent);}

.drawer-mask{
  position:fixed;inset:0;
  background:rgba(16,32,54,.36);
  opacity:0;visibility:hidden;
  transition:opacity .2s ease,visibility .2s ease;
  z-index:75;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* ---------- 移动端顶栏 ---------- */
.topbar{
  position:fixed;top:0;left:0;right:0;
  height:56px;
  display:flex;align-items:center;gap:12px;
  padding:0 16px;
  background:var(--card);
  border-bottom:1px solid var(--line);
  z-index:70;
}
.nav-toggle{
  width:44px;height:44px;flex:0 0 auto;
  display:grid;place-items:center;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  color:var(--ink);
  cursor:pointer;
  transition:background .18s ease,border-color .18s ease,color .18s ease;
}
.nav-toggle:hover{background:var(--brand-soft);border-color:var(--brand-line);color:var(--brand);}
.nav-toggle:active{transform:translateY(1px);}
.topbar .brand-text{font-size:14px;}

/* ---------- 主内容 ---------- */
.main{margin-left:0;padding-top:56px;min-height:100vh;}

.section{padding:52px 0;}
.section-head{max-width:720px;margin-bottom:28px;}
.section-head h2{font-size:28px;line-height:1.36;}
.section-head p{margin-top:12px;color:var(--muted);font-size:15.5px;}

/* ---------- Hero ---------- */
.hero{
  background:var(--hero-bg);
  border-bottom:1px solid var(--line);
  padding:40px 0 52px;
}
.breadcrumb{font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:22px;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--brand);text-decoration:underline;}
.breadcrumb span.sep{color:#B4BECB;}
.hero-grid{display:grid;grid-template-columns:1fr;gap:36px;align-items:center;}
.hero-title{font-size:28px;line-height:1.24;}
.hero-sub{margin-top:16px;font-size:16px;color:var(--muted);max-width:560px;}
.hero-actions{margin-top:26px;display:flex;flex-wrap:wrap;gap:14px;}
.hero-trust{margin-top:20px;font-size:13.5px;color:var(--muted);display:flex;align-items:center;gap:10px;}
.hero-trust .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);flex:0 0 auto;}
.hero-media{position:relative;}
.hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.hero-float{
  position:absolute;left:16px;bottom:-18px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  padding:14px 18px;
  min-width:210px;
}
.float-label{display:block;font-size:12.5px;color:var(--muted);}
.float-value{display:block;font-size:26px;font-weight:600;font-variant-numeric:tabular-nums;color:var(--brand);line-height:1.3;}
.float-note{display:block;font-size:12px;color:var(--muted);margin-top:6px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  font-size:15px;font-weight:500;
  cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px -12px rgba(44,92,143,.7);}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 12px 26px -14px rgba(44,92,143,.85);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:var(--card);color:var(--brand);border-color:var(--brand-line);}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none;}
.btn-block{width:100%;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;color:var(--brand);font-weight:500;
  border-bottom:1px solid transparent;
  transition:border-color .18s ease,color .18s ease,gap .18s ease;
}
.link-arrow:hover{border-color:var(--brand);gap:10px;}
.link-arrow svg{flex:0 0 auto;}

/* ---------- Tab 条 ---------- */
.tabbar{background:var(--card);border-bottom:1px solid var(--line);padding:16px 0;}
.tabs{display:flex;flex-wrap:wrap;gap:10px;}
.tab{
  display:inline-flex;align-items:center;min-height:42px;
  padding:0 18px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:var(--card);
  color:var(--muted);
  font-size:14px;
  transition:background .18s ease,border-color .18s ease,color .18s ease;
}
.tab:hover{border-color:var(--brand-line);color:var(--brand);background:var(--brand-soft);}
.tab.is-active{background:var(--brand-soft);border-color:var(--brand-line);color:var(--brand);font-weight:600;}

/* ---------- 图文卡片流 + 侧栏 ---------- */
.layout{display:grid;grid-template-columns:minmax(0,1fr);gap:32px;align-items:start;}
.card-stream{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.entry-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.entry-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--brand-line);}
.entry-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.entry-body{padding:18px 20px 22px;display:flex;flex-direction:column;flex:1 1 auto;}
.badge{
  display:inline-flex;align-items:center;
  padding:3px 10px;
  border-radius:var(--radius-pill);
  background:var(--brand-soft);
  color:var(--brand);
  font-size:12.5px;
  font-weight:500;
  line-height:1.6;
}
.entry-title{margin-top:12px;font-size:18px;line-height:1.45;}
.entry-title a{transition:color .18s ease;}
.entry-title a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.entry-text{
  margin-top:9px;
  font-size:14.5px;
  color:var(--muted);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.entry-foot{margin-top:16px;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px;}
.entry-time{font-size:12.5px;color:var(--muted);}

/* ---------- 侧栏 ---------- */
.side-col{display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:20px 20px 22px;
  box-shadow:var(--shadow-card);
}
.side-card h3{font-size:16px;line-height:1.5;}
.side-card p{font-size:14px;color:var(--muted);margin-top:10px;}
.progress{height:8px;border-radius:var(--radius-pill);background:#EDF1F6;overflow:hidden;margin-top:14px;}
.progress span{display:block;height:100%;background:var(--accent);border-radius:var(--radius-pill);}
.progress-meta{display:flex;justify-content:space-between;font-size:12.5px;color:var(--muted);margin-top:8px;font-variant-numeric:tabular-nums;}
.side-list{margin-top:14px;display:flex;flex-direction:column;gap:12px;}
.side-list li{display:flex;gap:10px;font-size:14px;color:var(--muted);line-height:1.7;}
.side-list .num{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;font-size:12.5px;font-weight:600;margin-top:3px;
}
.side-links{margin-top:14px;display:flex;flex-direction:column;gap:10px;}
.side-links a{font-size:14px;color:var(--brand);border-bottom:1px solid transparent;transition:border-color .18s ease,color .18s ease;align-self:flex-start;}
.side-links a:hover{border-color:var(--brand);color:var(--brand-dark);}
.contact-value{display:block;margin-top:12px;font-size:15px;font-weight:600;color:var(--brand);word-break:break-all;}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;margin-top:8px;}
.step{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:22px 20px;
  box-shadow:var(--shadow-card);
  transition:transform .18s ease,box-shadow .18s ease;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.step-index{
  width:32px;height:32px;border-radius:10px;
  background:var(--brand);color:#fff;
  display:grid;place-items:center;
  font-size:14px;font-weight:600;
}
.step h3{margin-top:14px;font-size:17px;}
.step p{margin-top:8px;font-size:14px;color:var(--muted);}

/* ---------- 提示速查 ---------- */
.code-list{display:grid;gap:12px;}
.code-item{
  display:grid;grid-template-columns:260px minmax(0,1fr);
  gap:20px;align-items:center;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:18px 22px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.code-item:hover{border-color:var(--brand-line);box-shadow:var(--shadow-card);}
.code-key{font-size:15px;font-weight:600;color:var(--brand-dark);}
.code-val{font-size:14.5px;color:var(--muted);}

/* ---------- 数据 ---------- */
.stat-section{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.stat{
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:22px 20px;
  background:linear-gradient(180deg,#FFFFFF 0%,#FAFCFE 100%);
}
.stat-value{font-size:38px;font-weight:600;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.15;}
.stat-label{margin-top:8px;font-size:14px;color:var(--ink);font-weight:500;}
.stat-note{margin-top:6px;font-size:13px;color:var(--muted);}
.trend{
  display:inline-flex;align-items:center;gap:5px;
  margin-top:10px;padding:2px 9px;
  border-radius:var(--radius-pill);
  background:rgba(232,183,92,.16);
  color:#8A6414;font-size:12px;font-weight:500;
}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item:hover{border-color:var(--brand-line);}
.faq-item[open]{border-color:var(--brand-line);box-shadow:var(--shadow-card);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;
  font-size:16px;font-weight:500;
  transition:color .18s ease,background .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand);background:#FAFCFE;}
.faq-item[open] summary{color:var(--brand);}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 auto;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
  transition:transform .18s ease;
}
.faq-icon::before{left:0;top:7px;width:16px;height:2px;}
.faq-icon::after{left:7px;top:0;width:2px;height:16px;}
.faq-item[open] .faq-icon::after{transform:scaleY(0);}
.faq-a{
  font-size:15px;line-height:1.8;color:var(--muted);
  padding:0 20px 20px 20px;
}
.faq-item[open] .faq-a{
  border-left:3px solid var(--accent);
  margin:0 20px 20px 20px;
  padding:0 0 0 16px;
}

/* ---------- CTA 表单 ---------- */
.cta-section{padding:52px 0 60px;}
.cta-panel{
  background:var(--footer);
  border-radius:var(--radius-card);
  padding:36px 32px;
  color:#fff;
  box-shadow:0 24px 48px -28px rgba(20,48,78,.8);
}
.cta-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:28px;}
.cta-panel h2{font-size:26px;line-height:1.36;color:#fff;}
.cta-panel p{color:rgba(255,255,255,.76);font-size:15px;margin-top:12px;max-width:520px;}
.cta-points{margin-top:20px;display:flex;flex-direction:column;gap:10px;}
.cta-points li{display:flex;gap:10px;font-size:14.5px;color:rgba(255,255,255,.82);}
.cta-points li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--sand);margin-top:9px;flex:0 0 auto;}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.form-field{display:flex;flex-direction:column;}
.form-field.full{grid-column:1 / -1;}
.form-field label{font-size:14px;margin-bottom:8px;color:rgba(255,255,255,.84);}
.form-field input,.form-field textarea{
  width:100%;
  min-height:48px;
  padding:12px 14px;
  border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.07);
  color:#fff;
  font-size:15px;
  transition:border-color .18s ease,background .18s ease,box-shadow .18s ease;
}
.form-field textarea{min-height:118px;resize:vertical;line-height:1.7;}
.form-field input::placeholder,.form-field textarea::placeholder{color:rgba(255,255,255,.45);}
.form-field input:focus,.form-field textarea:focus{
  outline:none;
  border-color:#8FBDE6;
  background:rgba(255,255,255,.12);
  box-shadow:0 0 0 3px rgba(143,189,230,.28);
}
.form-field.has-error input,.form-field.has-error textarea{border-color:#E48B84;background:rgba(209,83,75,.14);}
.form-error{font-size:12.5px;color:#F2B3AE;margin-top:6px;display:none;}
.form-field.has-error .form-error{display:block;}
.form-actions{grid-column:1 / -1;margin-top:4px;}
.form-note{margin-top:14px;font-size:13.5px;color:#9FD8CE;display:none;}
.form-note.is-visible{display:block;}
.skeleton{height:14px;border-radius:8px;background:linear-gradient(90deg,#EDF1F6 25%,#F6F8FB 50%,#EDF1F6 75%);background-size:200% 100%;animation:sk 1.4s ease-in-out infinite;}
@keyframes sk{0%{background-position:200% 0;}100%{background-position:-200% 0;}}

/* ---------- 页脚 ---------- */
.footer{background:var(--footer);color:rgba(255,255,255,.78);padding:56px 0 26px;}
.footer-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:15px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);}
.footer h4{color:#fff;font-size:15px;margin-bottom:14px;}
.footer p{font-size:14px;line-height:1.75;margin-top:14px;color:rgba(255,255,255,.7);}
.footer-list{display:flex;flex-direction:column;gap:10px;}
.footer-list a{font-size:14px;color:rgba(255,255,255,.76);transition:color .18s ease;}
.footer-list a:hover{color:#7FD3C7;}
.footer-bottom{
  margin-top:36px;padding-top:18px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media (min-width:640px){
  .hero{padding:48px 0 60px;}
  .hero-title{font-size:32px;}
}
@media (min-width:768px){
  .layout{grid-template-columns:minmax(0,1fr) 320px;}
  .side-col{position:sticky;top:24px;}
  .cta-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;}
  .cta-panel{padding:44px 40px;}
}
@media (min-width:1024px){
  .sidebar{transform:none;box-shadow:none;}
  .drawer-mask{display:none;}
  .topbar{display:none;}
  .main{margin-left:var(--sidebar-w);padding-top:0;}
  .hero{padding:56px 0 68px;}
  .hero-grid{grid-template-columns:1.15fr .85fr;gap:48px;}
  .hero-title{font-size:40px;}
  .section{padding:60px 0;}
  .section-head h2{font-size:28px;}
}
@media (min-width:1280px){
  :root{--sidebar-w:256px;}
  .container{padding:0 40px;}
}
@media (max-width:1023px){
  .container{padding:0 20px;}
  .card-stream{grid-template-columns:1fr;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
  .code-item{grid-template-columns:1fr;gap:8px;}
}
@media (max-width:639px){
  .hero-title{font-size:28px;}
  .hero-float{left:12px;right:12px;bottom:-20px;min-width:0;}
  .hero-media{padding-bottom:26px;}
  .steps{grid-template-columns:1fr;}
  .stat-grid{grid-template-columns:1fr;}
  .stat-value{font-size:32px;}
  .form-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-panel{padding:26px 20px;}
  .cta-panel h2{font-size:22px;}
  .section{padding:44px 0;}
}
@media (max-width:520px){
  .hero-actions .btn{width:100%;}
  .entry-body{padding:16px 16px 18px;}
  .faq-item summary{font-size:15px;padding:16px;}
  .faq-item[open] .faq-a{margin:0 16px 18px 16px;}
}