/* roulang page: index */
:root{
  --brand-600:#1B6FA8;
  --brand-700:#14567F;
  --brand-900:#0B3552;
  --brand-50:#F2F7FB;
  --brand-100:#E3EEF6;
  --accent:#E8622A;
  --accent-h:#C94F1D;
  --accent-50:#FDEEE7;
  --jade:#12A594;
  --jade-50:#E6F6F4;
  --text:#10212E;
  --text-2:#43596B;
  --text-3:#7A8C99;
  --border:#E4EAF0;
  --line:#EFF3F7;
  --page:#F7F9FB;
  --card:#FFFFFF;
  --ok:#1F9D6B;
  --warn:#D98A0B;
  --err:#D2453B;
  --r-card:14px;
  --r-img:14px;
  --r-btn:10px;
  --r-input:10px;
  --sh-card:0 1px 2px rgba(16,33,46,.04), 0 8px 24px rgba(16,33,46,.06);
  --sh-hover:0 12px 32px rgba(16,33,46,.10);
  --sh-nav:0 1px 0 rgba(16,33,46,.06);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:linear-gradient(180deg,#F7F9FB 0%,#FFFFFF 58%);
  text-align:left;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4,p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:3px solid rgba(27,111,168,.35);outline-offset:2px;border-radius:6px}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
.mono{font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.shrink{box-shadow:var(--sh-nav)}
.head-inner{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px;transition:height .2s ease}
.site-header.shrink .head-inner{height:64px}
.logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;letter-spacing:-.01em;color:var(--brand-900);white-space:nowrap}
.logo-mark{width:30px;height:30px;border-radius:9px;background:var(--brand-600);display:grid;place-items:center;color:#fff;font-size:13px;font-weight:700;letter-spacing:0;flex:none}
.logo-mark span{transform:translateY(-1px)}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-links a{position:relative;font-size:15px;color:var(--text-2);padding:6px 0;transition:color .18s ease}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--brand-600);transition:width .18s ease}
.nav-links a:hover{color:var(--text)}
.nav-links a:hover::after{width:100%}
.nav-links a.active{color:var(--brand-900);font-weight:600}
.nav-links a.active::after{width:100%}
.head-actions{display:flex;align-items:center;gap:12px}
.menu-toggle{display:none;width:44px;height:44px;border-radius:10px;align-items:center;justify-content:center}
.menu-toggle i{display:block;width:20px;height:2px;background:var(--text);position:relative;border-radius:2px;transition:.2s}
.menu-toggle i::before,.menu-toggle i::after{content:"";position:absolute;left:0;width:20px;height:2px;background:var(--text);border-radius:2px;transition:.2s}
.menu-toggle i::before{top:-6px}
.menu-toggle i::after{top:6px}
.drawer{
  position:fixed;inset:0;z-index:90;background:#fff;
  transform:translateY(-102%);transition:transform .3s ease;
  display:flex;flex-direction:column;padding:18px 18px 28px;
  overflow-y:auto;
}
.drawer.open{transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:56px;border-bottom:1px solid var(--line)}
.drawer-close{width:44px;height:44px;border-radius:10px;display:grid;place-items:center;font-size:20px;color:var(--text-2)}
.drawer-nav{margin-top:12px}
.drawer-nav a{display:flex;align-items:center;justify-content:space-between;height:56px;font-size:19px;color:var(--text-2);border-bottom:1px solid var(--line)}
.drawer-nav a.active{color:var(--brand-700);font-weight:600}
.drawer-nav a.active::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-600);margin-right:10px}
.drawer-nav a span{flex:1}
.drawer-cta{margin-top:auto;padding-top:24px}

/* ---------- buttons ---------- */
.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;letter-spacing:0;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand-600);color:#fff}
.btn-primary:hover{background:var(--brand-700);transform:translateY(-1px);box-shadow:0 6px 16px rgba(27,111,168,.28)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-h);transform:translateY(-1px);box-shadow:0 6px 16px rgba(232,98,42,.28)}
.btn-accent:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:#fff;color:var(--brand-900);border:1px solid #D9E2EA}
.btn-ghost:hover{border-color:var(--brand-600);color:var(--brand-700)}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.btn-lg{height:54px;padding:0 30px;font-size:16px}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--brand-600);font-size:15px;font-weight:600}
.text-link svg{transition:transform .18s ease}
.text-link:hover{text-decoration:underline}
.text-link:hover svg{transform:translateX(4px)}

/* ---------- badges ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;border-radius:999px;font-size:12px;letter-spacing:.04em;font-weight:600}
.badge-brand{background:rgba(27,111,168,.08);color:var(--brand-600)}
.badge-hot{background:var(--accent-50);color:var(--accent-h)}
.badge-live{background:var(--jade-50);color:var(--jade)}
.badge-live::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--jade)}
.tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;background:var(--brand-50);color:var(--brand-700);font-size:13px;letter-spacing:.06em}

/* ---------- hero ---------- */
.hero{position:relative;padding:68px 0 84px;overflow:hidden;background:#F7F9FB}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(16,33,46,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(16,33,46,.035) 1px,transparent 1px);
  background-size:56px 56px;
}
.hero-grid{position:relative;display:grid;grid-template-columns:55fr 45fr;gap:56px;align-items:center}
.hero-label{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;color:var(--brand-700);font-weight:600}
.hero-label::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--brand-600)}
.hero h1{
  margin-top:18px;
  font-size:clamp(30px,4vw,44px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--brand-900);
}
.hero-sub{margin-top:20px;max-width:36em;font-size:18px;line-height:1.8;color:var(--text-2)}
.hero-cta{margin-top:32px;display:flex;flex-wrap:wrap;gap:14px}
.hero-stats{margin-top:44px;display:flex;align-items:center;gap:0}
.hero-stat{padding-right:28px;margin-right:28px;border-right:1px solid var(--border)}
.hero-stat:last-child{border-right:0;padding-right:0;margin-right:0}
.hero-stat b{display:block;font-size:28px;line-height:1.2;font-weight:700;color:var(--brand-900);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.hero-stat span{display:block;margin-top:4px;font-size:13px;color:var(--text-3)}
.hero-visual{position:relative}
.hero-img{position:relative;border-radius:16px;overflow:hidden;border:1px solid rgba(16,33,46,.06);box-shadow:var(--sh-card)}
.hero-img img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-img::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,53,82,.06),transparent)}
.float-card{
  position:absolute;left:-24px;bottom:-24px;width:44%;
  background:#fff;border:1px solid var(--border);border-radius:14px;
  box-shadow:var(--sh-card);padding:14px;display:flex;gap:12px;align-items:center;
}
.float-card img{width:52px;height:52px;border-radius:10px;object-fit:cover;flex:none}
.float-card .fc-label{font-size:12px;color:var(--text-3);letter-spacing:.04em}
.float-card .fc-title{font-size:14px;font-weight:600;color:var(--text);line-height:1.45;margin-top:2px}

/* ---------- claim strip ---------- */
.claim{background:var(--brand-50);border-top:1px solid var(--brand-100);border-bottom:1px solid var(--brand-100)}
.claim-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:96px;padding:18px 0}
.claim-text{display:flex;align-items:center;gap:18px;font-size:20px;font-weight:600;color:var(--brand-900);letter-spacing:-.01em}
.claim-bar{width:3px;height:34px;background:var(--brand-600);border-radius:2px;flex:none}

/* ---------- generic section ---------- */
.section{padding:96px 0}
.section.tight{padding:80px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.3;font-weight:700;color:var(--brand-900);letter-spacing:-.01em}
.section-head p{margin-top:12px;font-size:16px;color:var(--text-2);max-width:44em}
.eyebrow{display:inline-block;font-size:12px;letter-spacing:.08em;color:var(--brand-600);font-weight:600;margin-bottom:12px}

/* ---------- story ---------- */
.story{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
.story-num{display:flex;gap:18px;padding:20px 0;border-bottom:1px solid var(--line)}
.story-num:first-of-type{border-top:1px solid var(--line)}
.story-num b{font-size:12px;font-weight:700;color:var(--brand-600);letter-spacing:.06em;font-variant-numeric:tabular-nums;padding-top:4px}
.story-num div h3{font-size:17px;font-weight:600;color:var(--text)}
.story-num div p{margin-top:4px;font-size:14px;color:var(--text-2);line-height:1.7}
.story-right p{font-size:16px;color:var(--text-2);line-height:1.85}
.story-right p + p{margin-top:20px}
.story-img{margin-top:28px;border-radius:14px;overflow:hidden;border:1px solid rgba(16,33,46,.06)}
.story-img img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* ---------- matrix ---------- */
.matrix{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.matrix-card{background:#fff;border:1px solid #E9EFF4;border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--sh-card);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.matrix-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:#CFE0ED}
.matrix-icon{width:42px;height:42px;border-radius:11px;background:var(--brand-50);display:grid;place-items:center;color:var(--brand-600);margin-bottom:18px}
.matrix-card h3{font-size:19px;font-weight:600;color:var(--text)}
.matrix-card p{margin-top:10px;font-size:14px;color:var(--text-2);line-height:1.75}
.matrix-meta{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}

/* ---------- picks ---------- */
.picks{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.card{background:#fff;border:1px solid #E9EFF4;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-card);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;display:flex;flex-direction:column}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:#CFE0ED}
.card-media{position:relative;overflow:hidden}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s ease}
.card:hover .card-media img{transform:scale(1.03)}
.card-media .badge{position:absolute;top:12px;left:12px;background:rgba(255,255,255,.9);color:var(--brand-700);border:1px solid var(--border)}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.card-body h3{font-size:18px;font-weight:600;line-height:1.45;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body p{margin-top:10px;font-size:14px;color:var(--text-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}
.card-foot svg{color:var(--brand-600);transition:transform .18s ease}
.card:hover .card-foot svg{transform:translateX(4px)}
.pick-hero{grid-column:span 12;flex-direction:row;align-items:stretch}
.pick-hero .card-media{flex:0 0 44%;max-width:44%}
.pick-hero .card-media img{height:100%;aspect-ratio:auto;min-height:268px}
.pick-hero .card-body{padding:32px 34px}
.pick-hero .card-body h3{font-size:23px;-webkit-line-clamp:2}
.pick-hero .card-body p{font-size:15px;-webkit-line-clamp:3}
.pick-sm{grid-column:span 4}

/* ---------- latest ---------- */
.latest-grid{display:grid;grid-template-columns:6fr 4fr;gap:32px;align-items:start}
.pill-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px}
.pill{display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;border:1px solid var(--border);background:#fff;font-size:14px;color:var(--text-2);transition:.18s}
.pill:hover{border-color:var(--brand-600);color:var(--brand-700)}
.pill.active{background:var(--brand-600);border-color:var(--brand-600);color:#fff}
.news-list{border-top:1px solid var(--line)}
.news-row{display:flex;align-items:center;gap:20px;padding:20px 12px;border-bottom:1px solid var(--line);transition:background .18s ease,padding .18s ease}
.news-row:hover{background:var(--page);border-radius:10px}
.news-row:hover .news-title{color:var(--brand-600)}
.news-main{min-width:0;flex:1}
.news-title{margin-top:8px;font-size:18px;font-weight:600;line-height:1.5;color:var(--text);transition:color .18s ease;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.news-sum{margin-top:6px;font-size:14px;color:var(--text-2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.news-date{flex:none;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}
.empty{display:flex;flex-direction:column;align-items:center;gap:12px;padding:56px 20px;border:1px dashed var(--border);border-radius:var(--r-card);background:#fff;color:var(--text-3);font-size:15px}
.empty svg{opacity:.35}
.side-card{background:#fff;border:1px solid #E9EFF4;border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-card)}
.side-card + .side-card{margin-top:24px}
.side-card h3{font-size:16px;font-weight:600;color:var(--brand-900);margin-bottom:16px}
.side-list li + li{margin-top:14px;padding-top:14px;border-top:1px solid var(--line)}
.side-list a{display:block;font-size:15px;font-weight:500;color:var(--text);line-height:1.6;transition:color .18s}
.side-list a:hover{color:var(--brand-600)}
.side-list span{display:block;margin-top:4px;font-size:12px;color:var(--text-3);font-variant-numeric:tabular-nums}
.side-sub p{font-size:14px;color:var(--text-2);margin-bottom:16px;line-height:1.75}
.side-form{display:flex;flex-direction:column;gap:10px}

/* ---------- proof ---------- */
.proof{background:var(--brand-50);border-top:1px solid var(--brand-100);border-bottom:1px solid var(--brand-100)}
.proof-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.proof-item{background:#fff;border:1px solid var(--border);border-radius:var(--r-card);padding:28px 24px;text-align:left;box-shadow:0 1px 2px rgba(16,33,46,.03)}
.proof-item b{display:block;font-size:32px;font-weight:700;color:var(--brand-600);line-height:1.2;font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.proof-item span{display:block;margin-top:8px;font-size:13px;color:var(--text-3)}
.proof-note{display:flex;flex-wrap:wrap;align-items:center;gap:32px;margin-top:36px;opacity:.55;transition:opacity .2s}
.proof-note:hover{opacity:1}
.proof-note span{font-size:14px;color:var(--text-2);font-weight:600;letter-spacing:.04em}

/* ---------- faq ---------- */
.faq{max-width:760px}
.faq details{border-bottom:1px solid var(--border)}
.faq details:first-of-type{border-top:1px solid var(--border)}
.faq summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;font-size:16px;font-weight:600;color:var(--text);transition:color .18s ease;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--brand-600)}
.faq details[open] summary{color:var(--brand-600)}
.faq .sign{position:relative;width:18px;height:18px;flex:none}
.faq .sign::before,.faq .sign::after{content:"";position:absolute;background:currentColor;border-radius:2px;transition:transform .2s ease}
.faq .sign::before{left:0;top:8px;width:18px;height:1.5px}
.faq .sign::after{left:8px;top:0;width:1.5px;height:18px}
.faq details[open] .sign::after{transform:rotate(90deg);opacity:0}
.faq .answer{padding:0 0 22px;font-size:15px;line-height:1.85;color:var(--text-2);max-width:44em}

/* ---------- cta ---------- */
.cta{background:var(--brand-900);color:#fff}
.cta-inner{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding:72px 0}
.cta h2{font-size:clamp(24px,2.6vw,32px);line-height:1.32;font-weight:700;letter-spacing:-.01em;color:#fff}
.cta p{margin-top:14px;font-size:15px;color:#C7D6E2;line-height:1.8}
.cta-form{display:flex;gap:12px}
.cta-form input{
  flex:1;height:48px;padding:0 16px;border-radius:var(--r-input);
  background:#fff;border:1px solid #fff;color:var(--text);font-size:15px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.cta-form input::placeholder{color:#9AAAB6}
.cta-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(232,98,42,.25)}
.cta-form input.err{border-color:var(--err);box-shadow:0 0 0 3px rgba(210,69,59,.25)}
.cta-note{margin-top:12px;font-size:12px;color:#8FA6B8}
.cta-msg{margin-top:12px;font-size:13px;color:#F3B79B;min-height:20px}
.cta-msg.ok{color:#8FE0C8}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-900);color:#C7D6E2;padding:64px 0 0;font-size:14px;line-height:1.8}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
.footer-brand .logo{color:#fff;margin-bottom:16px}
.footer-brand .logo-mark{background:var(--brand-600)}
.footer-brand p{color:#9FB4C4;max-width:30em}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-col li + li{margin-top:10px}
.footer-col a{color:#C7D6E2;transition:color .18s ease}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:22px 0 30px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;font-size:13px;color:#8FA6B8}
.footer-bottom .links{display:flex;flex-wrap:wrap;gap:20px}
.footer-bottom a:hover{color:#fff;text-decoration:underline}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .section{padding:84px 0}
}
@media (max-width:1023px){
  .nav-links,.head-actions .btn-ghost{display:none}
  .menu-toggle{display:inline-flex}
  .hero{padding:52px 0 76px}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-visual{max-width:620px}
  .story{grid-template-columns:1fr;gap:36px}
  .matrix{grid-template-columns:repeat(2,1fr)}
  .pick-sm{grid-column:span 6}
  .pick-hero{grid-column:span 12;flex-direction:column}
  .pick-hero .card-media{flex:none;max-width:100%}
  .pick-hero .card-media img{height:auto;aspect-ratio:16/9;min-height:0}
  .latest-grid{grid-template-columns:1fr;gap:28px}
  .proof-grid{grid-template-columns:repeat(2,1fr)}
  .cta-inner{grid-template-columns:1fr;gap:28px;padding:60px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:64px 0}
  .section.tight{padding:56px 0}
}
@media (max-width:767px){
  .wrap{padding:0 18px}
  .section{padding:48px 0}
  .section.tight{padding:48px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:28px}
  .hero h1{font-size:clamp(27px,7vw,32px)}
  .hero-sub{font-size:16px}
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn{width:100%}
  .hero-stats{flex-wrap:wrap;margin-top:32px}
  .hero-stat{padding-right:0;margin-right:0;border-right:0;width:50%;margin-bottom:18px}
  .hero-stat b{font-size:24px}
  .float-card{display:none}
  .claim-inner{flex-direction:column;align-items:flex-start;gap:12px;padding:24px 0;min-height:0}
  .claim-text{font-size:17px}
  .matrix{grid-template-columns:1fr}
  .picks{grid-template-columns:repeat(4,1fr)}
  .pick-sm{grid-column:span 4}
  .pick-hero .card-body{padding:24px 20px}
  .pick-hero .card-body h3{font-size:20px}
  .news-row{align-items:flex-start;flex-direction:column;gap:10px;padding:18px 10px}
  .news-title{white-space:normal;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
  .news-sum{white-space:normal}
  .proof-grid{grid-template-columns:1fr}
  .cta-form{flex-direction:column}
  .cta-form .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: article */
:root{
  --brand-600:#1B6FA8;
  --brand-700:#14567F;
  --brand-900:#0B3552;
  --brand-50:#F2F7FB;
  --brand-100:#E3EEF6;
  --accent:#E8622A;
  --accent-hover:#C94F1D;
  --accent-soft:#FDEEE7;
  --jade:#12A594;
  --jade-soft:#E6F6F4;
  --ink:#10212E;
  --ink-2:#43596B;
  --ink-3:#7A8C99;
  --line:#E4EAF0;
  --line-soft:#EFF3F7;
  --page:#F7F9FB;
  --card:#FFFFFF;
  --ok:#1F9D6B;
  --warn:#D98A0B;
  --err:#D2453B;
  --r-card:14px;
  --r-btn:10px;
  --r-img:16px;
  --shadow-card:0 1px 2px rgba(16,33,46,.04),0 8px 24px rgba(16,33,46,.06);
  --shadow-hover:0 12px 32px rgba(16,33,46,.10);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  color:var(--ink);
  background:linear-gradient(90deg,#F7F9FB 0%,#FFFFFF 100%);
  font-size:16px;
  line-height:1.7;
  letter-spacing:0;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--brand-600);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-700);}
button,input{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid rgba(27,111,168,.45);outline-offset:2px;}
.wrap{max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ============ header / nav ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line-soft);
  transition:height .2s ease,box-shadow .2s ease;
}
.site-header.is-stuck{box-shadow:0 1px 0 rgba(16,33,46,.06);}
.header-inner{
  display:flex;align-items:center;gap:32px;
  height:76px;
  transition:height .2s ease;
}
.site-header.is-stuck .header-inner{height:64px;}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-size:17px;font-weight:700;color:var(--brand-900);
  letter-spacing:-.01em;white-space:nowrap;
}
.logo:hover{color:var(--brand-700);}
.logo-mark{
  width:30px;height:30px;flex:0 0 30px;border-radius:9px;
  background:var(--brand-600);
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;font-size:11px;font-weight:700;letter-spacing:.04em;
}
.logo-mark span{line-height:1;}
.nav-links{display:flex;align-items:center;gap:30px;margin-left:8px;}
.nav-links a{
  position:relative;
  display:inline-flex;align-items:center;height:76px;
  font-size:15px;color:var(--ink-2);font-weight:500;
  transition:color .18s ease,height .2s ease;
}
.site-header.is-stuck .nav-links a{height:64px;}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:20px;height:2px;
  background:var(--brand-600);transform:scaleX(0);transform-origin:left center;
  transition:transform .18s ease;
}
.site-header.is-stuck .nav-links a::after{bottom:16px;}
.nav-links a:hover{color:var(--ink);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--brand-600);font-weight:600;}
.nav-links a.active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);
  background:#fff;border-radius:10px;cursor:pointer;
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand-600);color:#fff;}
.btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:0 6px 16px rgba(27,111,168,.28);}
.btn-primary:active{transform:none;box-shadow:none;}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px);box-shadow:0 6px 16px rgba(232,98,42,.28);}
.btn-accent:active{transform:none;box-shadow:none;}
.btn-ghost{background:#fff;color:var(--ink);border-color:#D9E2EA;}
.btn-ghost:hover{border-color:var(--brand-600);color:var(--brand-600);}
.btn-sm{height:36px;padding:0 16px;font-size:14px;}
.btn-lg{height:54px;padding:0 30px;font-size:16px;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand-600);font-weight:600;font-size:15px;
}
.text-link svg{transition:transform .18s ease;}
.text-link:hover{text-decoration:underline;}
.text-link:hover svg{transform:translateX(4px);}

/* ============ badges ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 10px;border-radius:999px;
  font-size:12px;letter-spacing:.04em;font-weight:600;
}
.badge-brand{background:rgba(27,111,168,.08);color:var(--brand-600);}
.badge-accent{background:var(--accent-soft);color:var(--accent);}
.badge-jade{background:var(--jade-soft);color:var(--jade);}
.badge-jade::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--jade);}
.badge-line{background:rgba(255,255,255,.92);border:1px solid var(--line);color:var(--ink-2);}

/* ============ article layout ============ */
.page-main{padding:28px 0 0;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-3);padding:14px 0 0;
}
.breadcrumb a{color:var(--ink-3);}
.breadcrumb a:hover{color:var(--brand-600);}
.breadcrumb .sep{color:#C3CFD8;}
.breadcrumb .now{color:var(--ink-3);}

.article-head{padding:26px 0 8px;max-width:860px;}
.article-head h1{
  font-size:clamp(26px,3.4vw,36px);
  line-height:1.3;font-weight:700;letter-spacing:-.01em;
  color:var(--brand-900);max-width:22ch;
}
.article-lead{
  margin-top:16px;font-size:17px;line-height:1.8;color:var(--ink-2);max-width:38ch;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:20px;font-size:13px;color:var(--ink-3);
}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:#C3CFD8;}
.meta-tools{margin-left:auto;display:flex;gap:8px;}
.icon-btn{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--line);
  background:#fff;display:inline-flex;align-items:center;justify-content:center;
  color:var(--ink-2);cursor:pointer;transition:all .18s ease;
}
.icon-btn:hover{color:var(--brand-600);border-color:#CFE0ED;background:var(--brand-50);}

.hero-figure{margin:28px 0 8px;}
.hero-figure img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:var(--r-card);border:1px solid rgba(16,33,46,.06);
}
.hero-figure figcaption{
  margin-top:10px;font-size:13px;color:var(--ink-3);text-align:center;
}

.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;
  padding:32px 0 0;align-items:start;
}
.article-body{
  max-width:760px;font-size:16px;line-height:1.9;color:#1B2B38;
}
.article-body p{margin:0 0 20px;}
.article-body h2{
  position:relative;margin:40px 0 16px;padding-left:14px;
  font-size:clamp(21px,2.2vw,26px);line-height:1.4;font-weight:700;color:var(--brand-900);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.35em;width:3px;height:20px;border-radius:2px;background:var(--brand-600);
}
.article-body h3{margin:28px 0 12px;font-size:19px;line-height:1.45;font-weight:600;color:var(--brand-900);}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:2px;}
.article-body li{position:relative;padding-left:20px;margin-bottom:10px;}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.75em;width:8px;height:2px;border-radius:1px;background:var(--brand-600);
}
.article-body ol{counter-reset:item;}
.article-body ol li{counter-increment:item;}
.article-body ol li::before{
  content:counter(item,decimal-leading-zero);
  position:absolute;left:0;top:0;font-size:13px;font-weight:700;color:var(--brand-600);
  font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:24px 0;padding:18px 20px;border-left:3px solid var(--brand-600);
  background:var(--brand-50);border-radius:0 12px 12px 0;color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;margin:24px 0;border:1px solid rgba(16,33,46,.06);}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:14.5px;
  border:1px solid var(--line);border-radius:10px;overflow:hidden;
}
.article-body th,.article-body td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);}
.article-body th{background:var(--page);font-weight:600;color:var(--brand-900);}
.article-body tr:last-child td{border-bottom:none;}
.article-body strong{color:var(--brand-900);}

.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:36px 0 0;}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  background:var(--brand-50);color:var(--brand-600);font-size:13px;font-weight:500;
  transition:background .18s ease,color .18s ease;
}
.tag:hover{background:var(--brand-100);color:var(--brand-700);}

.notice-box{
  max-width:760px;padding:28px;border:1px solid var(--line);border-radius:var(--r-card);
  background:#fff;box-shadow:var(--shadow-card);text-align:center;
}
.notice-box .ico{
  width:48px;height:48px;margin:0 auto 14px;border-radius:50%;
  background:var(--brand-50);color:var(--brand-600);
  display:flex;align-items:center;justify-content:center;opacity:.75;
}
.notice-box p{color:var(--ink-2);margin-bottom:16px;}

/* ============ sidebar ============ */
.sidebar{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:#fff;border:1px solid #E9EFF4;border-radius:var(--r-card);
  padding:20px;box-shadow:var(--shadow-card);
}
.side-card h3{font-size:15px;font-weight:700;color:var(--brand-900);margin-bottom:14px;}
.toc{display:flex;flex-direction:column;gap:2px;}
.toc a{
  position:relative;display:block;padding:9px 0 9px 12px;
  font-size:14px;color:var(--ink-2);border-left:2px solid transparent;
  transition:color .18s ease,border-color .18s ease;
}
.toc a:hover{color:var(--brand-600);}
.toc a.on{color:var(--brand-600);font-weight:600;border-left-color:var(--brand-600);}
.side-list li{border-bottom:1px solid var(--line-soft);}
.side-list li:last-child{border-bottom:none;}
.side-list a{
  display:flex;gap:10px;padding:11px 0;font-size:14px;color:var(--ink-2);line-height:1.5;
}
.side-list a:hover{color:var(--brand-600);}
.side-list .num{
  flex:0 0 20px;font-size:12px;font-weight:700;color:var(--brand-600);
  font-variant-numeric:tabular-nums;padding-top:2px;
}
.side-cta{background:var(--brand-900);border-color:var(--brand-900);}
.side-cta h3{color:#fff;}
.side-cta p{font-size:13.5px;line-height:1.75;color:#C7D6E2;margin-bottom:16px;}
.side-cta .btn{width:100%;}

/* ============ related ============ */
.section{padding:80px 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:30px;}
.section-head h2{font-size:clamp(22px,2.4vw,30px);line-height:1.3;font-weight:700;color:var(--brand-900);}
.section-head p{margin-top:8px;font-size:14.5px;color:var(--ink-2);}
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  display:flex;flex-direction:column;background:#fff;
  border:1px solid #E9EFF4;border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#CFE0ED;}
.card-media{position:relative;overflow:hidden;}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s ease;}
.card:hover .card-media img{transform:scale(1.03);}
.card-media .badge{position:absolute;left:12px;top:12px;}
.card-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:17px;line-height:1.5;font-weight:600;color:var(--brand-900);}
.card-body p{font-size:14px;line-height:1.7;color:var(--ink-2);}
.card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums;
}

/* ============ cta ============ */
.cta-band{
  background:var(--brand-900);border-radius:var(--r-card);
  padding:40px;margin:80px 0 0;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(21px,2.2vw,27px);line-height:1.35;font-weight:700;color:#fff;}
.cta-band p{margin-top:10px;font-size:14.5px;color:#C7D6E2;max-width:52ch;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
.cta-band .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.35);}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.1);border-color:#fff;color:#fff;}

/* ============ footer ============ */
.site-footer{margin-top:96px;background:var(--brand-900);color:#C7D6E2;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .logo{color:#fff;margin-bottom:16px;}
.footer-brand .logo:hover{color:#fff;}
.footer-brand .logo-mark{background:var(--brand-600);}
.footer-brand p{font-size:14px;line-height:1.85;color:#C7D6E2;max-width:38ch;}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul li{margin-bottom:11px;font-size:14px;}
.footer-col a{color:#C7D6E2;}
.footer-col a:hover{color:#fff;text-decoration:underline;}
.footer-bottom{
  margin-top:48px;padding:22px 0 28px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:#9FB4C4;
}
.footer-bottom .links{display:flex;gap:20px;flex-wrap:wrap;}
.footer-bottom .links a{color:#9FB4C4;}
.footer-bottom .links a:hover{color:#fff;}

/* ============ mobile drawer ============ */
.drawer{
  position:fixed;inset:0;z-index:80;background:#fff;
  transform:translateY(-8px);opacity:0;pointer-events:none;
  transition:opacity .2s ease,transform .2s ease;
  display:flex;flex-direction:column;
}
.drawer.open{opacity:1;transform:none;pointer-events:auto;}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  height:76px;border-bottom:1px solid var(--line-soft);
}
.drawer-close{
  width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:10px;
  cursor:pointer;font-size:20px;line-height:1;color:var(--ink-2);
}
.drawer-nav{padding:12px 24px;flex:1;overflow-y:auto;}
.drawer-nav a{
  display:flex;align-items:center;height:56px;font-size:20px;
  color:var(--ink-2);border-bottom:1px solid var(--line-soft);
}
.drawer-nav a.active{color:var(--brand-600);font-weight:700;}
.drawer-nav a.active::before{
  content:"";width:7px;height:7px;border-radius:50%;background:var(--brand-600);margin-right:12px;
}
.drawer-foot{padding:18px 24px 28px;border-top:1px solid var(--line-soft);}
.drawer-foot .btn{width:100%;}

/* ============ responsive ============ */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:36px;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .header-actions .btn-ghost{display:none;}
  .nav-toggle{display:inline-flex;}
  .article-layout{grid-template-columns:minmax(0,1fr);}
  .sidebar{position:static;margin-top:40px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cards{grid-template-columns:repeat(2,minmax(0,1fr));}
  .section{padding-top:64px;}
}
@media (max-width:767px){
  .wrap{padding:0 18px;}
  .header-actions .btn-primary{display:none;}
  .article-head h1{max-width:none;}
  .article-lead{font-size:16px;max-width:none;}
  .article-meta .meta-tools{margin-left:0;width:100%;}
  .cards{grid-template-columns:1fr;}
  .cta-band{padding:28px;margin-top:64px;}
  .site-footer{padding-top:48px;margin-top:64px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .section{padding-top:48px;}
}
@media (max-width:479px){
  .btn{height:44px;padding:0 18px;font-size:14.5px;}
  .article-body{font-size:15.5px;}
}

/* roulang page: category1 */
:root{
  --brand-600:#1B6FA8;
  --brand-700:#14567F;
  --brand-900:#0B3552;
  --brand-50:#F2F7FB;
  --brand-100:#E3EEF6;
  --accent:#E8622A;
  --accent-hover:#C94F1D;
  --accent-50:#FDEEE7;
  --jade:#12A594;
  --jade-50:#E4F6F3;
  --text:#10212E;
  --text-2:#43596B;
  --text-3:#7A8C99;
  --border:#E4EAF0;
  --line:#EFF3F7;
  --page:#F7F9FB;
  --card:#FFFFFF;
  --ok:#1F9D6B;
  --warn:#D98A0B;
  --err:#D2453B;
  --radius-card:14px;
  --radius-img:16px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(16,33,46,.04), 0 8px 24px rgba(16,33,46,.06);
  --shadow-2:0 12px 32px rgba(16,33,46,.10);
  --wrap:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:linear-gradient(90deg,#F7F9FB 0%,#FFFFFF 100%);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand-600);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--brand-700)}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(27,111,168,.35);outline-offset:2px;border-radius:6px}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}
.section{padding:92px 0}
.section.tight{padding:64px 0}
.section-head{max-width:720px;margin-bottom:36px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;color:var(--brand-600);
  font-weight:700;text-transform:uppercase;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block}
h1{font-size:clamp(30px,4vw,44px);line-height:1.25;font-weight:700;letter-spacing:-.01em}
h2{font-size:clamp(24px,2.6vw,34px);line-height:1.3;font-weight:700;margin-bottom:16px}
h3{font-size:21px;line-height:1.4;font-weight:600;margin-bottom:12px}
p{color:var(--text-2)}
.lead{font-size:18px;line-height:1.8;color:var(--text-2)}
.muted{color:var(--text-3);font-size:14px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand-600);color:#fff}
.btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:0 6px 16px rgba(27,111,168,.28)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px);box-shadow:0 6px 16px rgba(232,98,42,.28)}
.btn-accent:active{transform:translateY(0);box-shadow:none}
.btn-outline{background:#fff;border-color:#D9E2EA;color:var(--brand-900)}
.btn-outline:hover{border-color:var(--brand-600);color:var(--brand-600)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-lg{height:54px;padding:0 30px;font-size:16px}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand-600);
}
.text-link .arw{transition:transform .2s ease}
.text-link:hover{color:var(--brand-700);text-decoration:underline;text-underline-offset:4px}
.text-link:hover .arw{transform:translateX(4px)}

/* 标签与徽章 */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:25px;padding:0 12px;border-radius:999px;
  font-size:12px;letter-spacing:.04em;font-weight:600;
}
.badge-brand{background:rgba(27,111,168,.08);color:var(--brand-600)}
.badge-accent{background:var(--accent-50);color:var(--accent)}
.badge-jade{background:var(--jade-50);color:var(--jade)}
.badge-jade::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--jade)}

/* 头部导航 */
.site-header{
  --nav-h:76px;
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{--nav-h:64px;box-shadow:0 1px 0 rgba(16,33,46,.06)}
.nav-inner{height:var(--nav-h);display:flex;align-items:center;gap:28px;justify-content:space-between;transition:height .2s ease}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--brand-900);font-weight:700;font-size:17px;letter-spacing:-.01em}
.logo:hover{color:var(--brand-900)}
.logo-mark{
  width:34px;height:34px;border-radius:9px;background:var(--brand-900);
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;font-size:12px;font-weight:700;letter-spacing:.04em;
}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-links a{
  position:relative;font-size:15px;color:var(--text-2);padding:6px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--brand-600);transition:width .18s ease;
}
.nav-links a:hover{color:var(--text)}
.nav-links a:hover::after{width:100%}
.nav-links a.active{color:var(--text);font-weight:700}
.nav-links a.active::after{width:100%}
.nav-links .drawer-cta{display:none}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border:0;background:transparent;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;
}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--brand-900);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
body.drawer-open{overflow:hidden}
body.drawer-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
body.drawer-open .nav-toggle span:nth-child(2){opacity:0}
body.drawer-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 分类页 Banner */
.page-banner{position:relative;overflow:hidden;color:#fff;background:var(--brand-900)}
.page-banner .banner-bg{
  position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-1.webp);
  background-size:cover;background-position:center;
  opacity:.55;
}
.page-banner::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(11,53,82,.94) 0%,rgba(11,53,82,.78) 55%,rgba(11,53,82,.55) 100%);
}
.banner-inner{
  position:relative;z-index:2;
  min-height:380px;
  display:grid;grid-template-columns:1.06fr .94fr;gap:56px;align-items:center;
  padding:64px 24px 68px;
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;margin-bottom:22px;flex-wrap:wrap}
.breadcrumb a{color:rgba(255,255,255,.78)}
.breadcrumb a:hover{color:#fff}
.breadcrumb span.sep{color:rgba(255,255,255,.45)}
.breadcrumb .current{color:rgba(255,255,255,.62)}
.page-banner h1{color:#fff;margin-bottom:18px}
.page-banner .lead{color:rgba(255,255,255,.84);max-width:560px;margin-bottom:30px}
.banner-actions{display:flex;flex-wrap:wrap;gap:14px}
.banner-facts{display:flex;flex-wrap:wrap;gap:28px;margin-top:34px}
.banner-facts div b{display:block;font-size:26px;font-weight:700;color:#fff}
.banner-facts div span{font-size:13px;color:rgba(255,255,255,.68)}
.banner-media{
  position:relative;border-radius:var(--radius-img);overflow:hidden;
  border:1px solid rgba(255,255,255,.18);
}
.banner-media img{width:100%;height:300px;object-fit:cover}
.banner-media::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,53,82,.06),transparent 60%);
  z-index:2;pointer-events:none;
}

/* 概览 */
.overview-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:start}
.overview-copy p + p{margin-top:20px}
.metrics{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.metric{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-1);
}
.metric b{display:block;font-size:30px;line-height:1.2;font-weight:700;color:var(--brand-900);font-variant-numeric:tabular-nums}
.metric span{display:block;font-size:13px;color:var(--text-3);margin-top:6px}
.metric.hl b{color:var(--accent)}

/* 图文交错 */
.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:34px 0}
.feature-row + .feature-row{border-top:1px solid var(--line)}
.feature-row.reverse .feature-media{order:2}
.feature-num{font-size:12px;letter-spacing:.08em;font-weight:700;color:var(--brand-600);margin-bottom:10px;display:block}
.feature-body p + p{margin-top:18px}
.feature-media{border-radius:var(--radius-img);overflow:hidden;border:1px solid rgba(16,33,46,.06);box-shadow:var(--shadow-1)}
.feature-media img{width:100%;height:290px;object-fit:cover}
.feature-list{margin-top:22px;display:grid;gap:12px}
.feature-list li{display:flex;gap:10px;font-size:15px;color:var(--text-2)}
.feature-list li::before{
  content:"";flex:0 0 8px;height:8px;margin-top:11px;border-radius:2px;background:var(--brand-100);
  border:2px solid var(--brand-600);
}

/* 流程步骤 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:8px}
.step{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:26px 22px;box-shadow:var(--shadow-1);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#CFE0ED}
.step-num{
  width:34px;height:34px;border-radius:9px;background:var(--brand-50);color:var(--brand-600);
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;
  font-variant-numeric:tabular-nums;margin-bottom:16px;
}
.step h3{font-size:18px;margin-bottom:8px}
.step p{font-size:14.5px;line-height:1.75}

/* 条目清单 */
.item-list{border-top:1px solid var(--border)}
.item{
  display:flex;align-items:center;gap:20px;
  padding:20px 18px;border-bottom:1px solid var(--line);
  transition:background .2s ease;color:inherit;
}
.item:hover{background:var(--page);color:inherit}
.item .idx{flex:0 0 34px;font-size:14px;font-weight:700;color:var(--brand-600);font-variant-numeric:tabular-nums}
.item .txt{min-width:0}
.item .txt strong{display:block;font-size:17px;font-weight:600;color:var(--text);margin-bottom:4px}
.item:hover .txt strong{color:var(--brand-600)}
.item .txt span{display:block;font-size:14px;color:var(--text-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.item .arw{margin-left:auto;flex:0 0 auto;color:var(--text-3);font-size:18px;transition:transform .2s ease,color .2s ease}
.item:hover .arw{transform:translateX(4px);color:var(--brand-600)}

/* CTA */
.cta-band{background:var(--brand-900);color:#fff}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:56px 0}
.cta-inner h2{color:#fff;margin-bottom:10px}
.cta-inner p{color:#C7D6E2;max-width:640px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* 订阅表单行 */
.subscribe-row{display:flex;gap:12px;margin-top:22px;flex-wrap:wrap}
.subscribe-row input{
  height:48px;min-width:260px;flex:1 1 260px;padding:0 16px;border-radius:var(--radius-btn);
  border:1px solid #D9E2EA;background:#fff;color:var(--text);font-size:15px;
}
.subscribe-row input::placeholder{color:#9AAAB6}
.subscribe-row input:focus{outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(27,111,168,.18)}
.form-note{font-size:12px;color:var(--text-3);margin-top:12px}
.form-note.err{color:var(--err)}
.form-note.ok{color:var(--ok)}

/* 页脚 */
.site-footer{background:var(--brand-900);color:#C7D6E2;margin-top:0}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
  padding:72px 0 40px;
}
.footer-brand .logo{color:#fff;margin-bottom:18px}
.footer-brand .logo-mark{background:rgba(255,255,255,.12)}
.footer-brand p{color:#C7D6E2;font-size:14.5px;line-height:1.85;max-width:360px}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:.02em}
.footer-col ul{display:grid;gap:12px}
.footer-col li{font-size:14.5px;color:#C7D6E2}
.footer-col a{color:#C7D6E2}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 34px;display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:rgba(199,214,226,.8);
}
.footer-bottom .links{display:flex;gap:20px;flex-wrap:wrap}
.footer-bottom .links a{color:rgba(199,214,226,.85);font-size:13px}
.footer-bottom .links a:hover{color:#fff}

/* 响应式 */
@media (max-width:1023px){
  .section{padding:64px 0}
  .banner-inner{grid-template-columns:1fr;gap:36px;padding:52px 24px 56px;min-height:0}
  .banner-media img{height:240px}
  .overview-grid{grid-template-columns:1fr;gap:36px}
  .feature-row{grid-template-columns:1fr;gap:28px;padding:28px 0}
  .feature-row.reverse .feature-media{order:0}
  .feature-media img{height:250px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:56px 0 32px}
}
@media (max-width:860px){
  .nav-actions{display:none}
  .nav-toggle{display:inline-flex}
  .nav-links{
    position:fixed;top:0;right:0;bottom:0;left:0;
    background:#fff;flex-direction:column;align-items:stretch;gap:0;
    padding:84px 24px 32px;margin:0;
    transform:translateX(100%);transition:transform .28s ease;
    z-index:70;overflow-y:auto;
  }
  .nav-links.is-open{transform:translateX(0)}
  .nav-links a{
    font-size:20px;line-height:56px;border-bottom:1px solid var(--line);
    padding:0;color:var(--text);
  }
  .nav-links a::after{display:none}
  .nav-links a.active{color:var(--brand-600);font-weight:700;display:flex;align-items:center}
  .nav-links a.active::before{
    content:"";width:7px;height:7px;border-radius:50%;background:var(--brand-600);
    display:inline-block;margin-right:12px;
  }
  .nav-links .drawer-cta{
    display:inline-flex;margin-top:26px;height:50px;line-height:1;border-bottom:0;
    background:var(--accent);color:#fff;border-radius:var(--radius-btn);
    align-items:center;justify-content:center;font-size:16px;
  }
  .nav-links .drawer-cta:hover{background:var(--accent-hover);color:#fff}
  .section{padding:52px 0}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:44px 0}
  .item{align-items:flex-start}
  .item .txt span{white-space:normal}
}
@media (max-width:520px){
  .wrap{padding:0 18px}
  .banner-inner{padding:40px 18px 46px}
  .banner-facts{gap:20px}
  .banner-facts div b{font-size:22px}
  .steps{grid-template-columns:1fr}
  .metrics{grid-template-columns:1fr}
  .banner-actions .btn{width:100%}
  .cta-actions .btn{width:100%}
  .subscribe-row input{min-width:0}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category2 */
:root{
  --brand-600:#1B6FA8;
  --brand-700:#14567F;
  --brand-900:#0B3552;
  --brand-50:#F2F7FB;
  --brand-100:#E3EEF6;
  --accent:#E8622A;
  --accent-700:#C94F1D;
  --accent-50:#FDEEE7;
  --jade:#12A594;
  --ink:#10212E;
  --ink-2:#43596B;
  --ink-3:#7A8C99;
  --line:#E4EAF0;
  --line-soft:#EFF3F7;
  --page:#F7F9FB;
  --card:#FFFFFF;
  --ok:#1F9D6B;
  --warn:#D98A0B;
  --err:#D2453B;
  --r-card:14px;
  --r-img:16px;
  --r-btn:10px;
  --shadow-sm:0 1px 2px rgba(16,33,46,.04), 0 8px 24px rgba(16,33,46,.06);
  --shadow-lg:0 12px 32px rgba(16,33,46,.10);
  --wrap:1200px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:linear-gradient(180deg,var(--page) 0%,#FFFFFF 520px);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:-.01em}
p{margin:0}
:focus-visible{outline:3px solid rgba(27,111,168,.35);outline-offset:2px;border-radius:6px}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-tight{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px}
.section-head h2{font-size:clamp(24px,2.6vw,34px);color:var(--brand-900)}
.section-head p{margin-top:10px;font-size:15px;color:var(--ink-2);max-width:640px}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-600);white-space:nowrap}
.text-link .arrow{transition:transform .18s ease}
.text-link:hover{text-decoration:underline}
.text-link:hover .arrow{transform:translateX(4px)}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--line-soft);transition:box-shadow .2s ease}
.site-header.is-scrolled{box-shadow:0 1px 0 rgba(16,33,46,.06)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:76px;transition:height .2s ease}
.site-header.is-scrolled .header-inner{height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--brand-900);letter-spacing:-.01em}
.logo-mark{width:32px;height:32px;border-radius:9px;background:var(--brand-600);color:#fff;display:grid;place-items:center;font-size:12px;font-weight:700;letter-spacing:.04em;flex:0 0 32px}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-links a{position:relative;font-size:15px;color:var(--ink-2);padding:12px 0;transition:color .18s ease}
.nav-links a::after{content:"";position:absolute;left:0;bottom:8px;width:0;height:2px;border-radius:2px;background:var(--brand-600);transition:width .18s ease}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after{width:100%}
.nav-links a.active{color:var(--brand-900);font-weight:600}
.nav-links a.active::after{width:100%}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;align-items:center;justify-content:center;cursor:pointer}
.nav-toggle span{position:relative;width:18px;height:2px;border-radius:2px;background:var(--brand-900);display:block}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--brand-900);transition:transform .2s ease}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- 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;cursor:pointer;transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;white-space:nowrap}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-primary{background:var(--brand-600);color:#fff}
.btn-primary:hover{background:var(--brand-700);transform:translateY(-1px);box-shadow:0 6px 16px rgba(27,111,168,.28)}
.btn-primary:active{transform:none;box-shadow:none}
.btn-ghost{background:#fff;border-color:#D9E2EA;color:var(--brand-900)}
.btn-ghost:hover{border-color:var(--brand-600);color:var(--brand-600)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-700);transform:translateY(-1px);box-shadow:0 6px 16px rgba(232,98,42,.30)}
.btn-white{background:#fff;color:var(--brand-900)}
.btn-white:hover{background:var(--brand-50)}

/* ---------- 徽章 / 标签 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;height:25px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.04em}
.badge-brand{background:rgba(27,111,168,.08);color:var(--brand-600)}
.badge-accent{background:var(--accent-50);color:var(--accent-700)}
.badge-jade{background:rgba(18,165,148,.10);color:#0E8577}
.badge-jade::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--jade)}
.badge-solid{background:rgba(255,255,255,.92);border:1px solid var(--line);color:var(--brand-900)}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.chip{display:inline-flex;align-items:center;height:34px;padding:0 14px;border-radius:999px;background:var(--brand-50);border:1px solid var(--brand-100);color:var(--brand-700);font-size:14px;font-weight:500}

/* ---------- 面包屑 ---------- */
.crumb{font-size:13px;color:var(--ink-3);padding:22px 0 0}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb li::after{content:"/";margin-left:8px;color:#C3D0DA}
.crumb li:last-child::after{display:none}
.crumb a{color:var(--ink-3)}
.crumb a:hover{color:var(--brand-600)}
.crumb .current{color:var(--ink-2)}

/* ---------- 分类首屏 ---------- */
.cat-hero{position:relative;text-align:center;padding:56px 0 76px;border-bottom:1px solid var(--line-soft);background:linear-gradient(180deg,rgba(247,249,251,.93),rgba(255,255,255,.97)),url("/assets/images/backpic/back-2.webp") center/cover no-repeat}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--brand-600);background:rgba(27,111,168,.08);border-radius:999px;padding:7px 14px}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-600)}
.cat-hero h1{font-size:clamp(30px,4vw,44px);line-height:1.25;color:var(--brand-900);margin:20px 0 14px}
.cat-hero .lede{max-width:720px;margin:0 auto;font-size:18px;line-height:1.8;color:var(--ink-2)}
.cat-hero .meta-row{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:26px}

/* ---------- 指标 ---------- */
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap)}
.stat{background:var(--card);border:1px solid #E9EFF4;border-radius:var(--r-card);padding:24px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.stat:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#CFE0ED}
.stat b{display:block;font-size:30px;line-height:1.2;color:var(--brand-900);font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.stat span{display:block;margin-top:8px;font-size:13px;color:var(--ink-3)}

/* ---------- 内容卡片 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--gap)}
.card{display:flex;flex-direction:column;background:var(--card);border:1px solid #E9EFF4;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#CFE0ED}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--brand-50)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.card:hover .card-media img{transform:scale(1.03)}
.card-media .badge{position:absolute;left:14px;top:14px}
.card-body{display:flex;flex-direction:column;gap:10px;padding:22px;flex:1}
.card-body h3{font-size:19px;color:var(--brand-900)}
.card-body p{font-size:15px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3);padding-top:6px}
.card-foot .arrow{transition:transform .18s ease;color:var(--brand-600);font-weight:600}
.card:hover .card-foot .arrow{transform:translateX(4px)}

/* ---------- 图文区块 ---------- */
.feature{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center}
.feature-media{border-radius:var(--r-img);overflow:hidden;border:1px solid rgba(16,33,46,.06);box-shadow:var(--shadow-sm)}
.feature-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.feature h2{font-size:clamp(24px,2.6vw,32px);color:var(--brand-900);margin-bottom:16px}
.feature p{color:var(--ink-2);margin-bottom:16px}
.feature ul{margin-top:8px;display:flex;flex-direction:column;gap:12px}
.feature ul li{position:relative;padding-left:18px;font-size:15px;color:var(--ink-2)}
.feature ul li::before{content:"";position:absolute;left:0;top:12px;width:8px;height:2px;border-radius:2px;background:var(--brand-600)}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap)}
.step{background:var(--card);border:1px solid #E9EFF4;border-radius:var(--r-card);padding:26px 22px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#CFE0ED}
.step .num{font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--brand-600);font-variant-numeric:tabular-nums}
.step h3{margin:12px 0 10px;font-size:18px;color:var(--brand-900)}
.step p{font-size:14px;color:var(--ink-2)}

/* ---------- FAQ ---------- */
.faq{max-width:760px;margin:0 auto}
.faq details{border-bottom:1px solid var(--line)}
.faq details:first-child{border-top:1px solid var(--line)}
.faq summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 0;min-height:44px;cursor:pointer;font-size:16px;font-weight:600;color:var(--ink);list-style:none;transition:color .2s ease}
.faq summary::-webkit-details-marker{display:none}
.faq summary .sign{position:relative;width:16px;height:16px;flex:0 0 16px}
.faq summary .sign::before,.faq summary .sign::after{content:"";position:absolute;background:var(--brand-600);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.faq summary .sign::before{left:0;top:7px;width:16px;height:1.5px}
.faq summary .sign::after{left:7px;top:0;width:1.5px;height:16px}
.faq summary:hover{color:var(--brand-600)}
.faq details[open] summary{color:var(--brand-600)}
.faq details[open] summary .sign::after{transform:scaleY(0);opacity:0}
.faq .answer{padding:0 0 22px;font-size:15px;color:var(--ink-2);max-width:700px}

/* ---------- CTA 横条 ---------- */
.cta-band{display:flex;align-items:center;justify-content:space-between;gap:28px;background:var(--accent);border-radius:18px;padding:38px 42px;box-shadow:0 12px 30px rgba(232,98,42,.22)}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);color:#fff;margin-bottom:10px}
.cta-band p{font-size:15px;color:rgba(255,255,255,.9);max-width:560px}
.cta-band .btn{flex:0 0 auto}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:88px;background:var(--brand-900);color:#C7D6E2;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .logo{color:#fff}
.footer-brand .logo-mark{background:var(--brand-600)}
.footer-brand p{margin-top:16px;max-width:360px;font-size:14px;line-height:1.9;color:#9FB6C6}
.footer-col h4{margin:0 0 16px;font-size:14px;color:#fff;font-weight:600}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li{font-size:14px;color:#C7D6E2}
.footer-col a{font-size:14px;color:#C7D6E2;transition:color .18s ease}
.footer-col a:hover{color:#fff;text-decoration:underline}
.footer-bottom{margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8FA8BA}
.footer-bottom .links{display:flex;flex-wrap:wrap;gap:18px}
.footer-bottom .links a:hover{color:#fff;text-decoration:underline}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{position:fixed;left:0;right:0;top:0;bottom:0;background:#fff;z-index:70;transform:translateX(100%);transition:transform .26s ease;padding:88px 24px 28px;overflow-y:auto;display:flex;flex-direction:column}
.mobile-drawer.is-open{transform:translateX(0)}
.mobile-drawer a{display:flex;align-items:center;min-height:56px;font-size:20px;color:var(--ink-2);border-bottom:1px solid var(--line-soft)}
.mobile-drawer a.active{color:var(--brand-900);font-weight:700;position:relative;padding-left:16px}
.mobile-drawer a.active::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:7px;height:7px;border-radius:50%;background:var(--brand-600)}
.mobile-drawer .drawer-cta{margin-top:auto;display:flex;flex-direction:column;gap:12px;padding-top:28px}
.mobile-drawer .btn{width:100%}
.drawer-close{position:absolute;right:20px;top:22px;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer;display:grid;place-items:center}
body.no-scroll{overflow:hidden}

@media (max-width:1023px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions .btn-sm{display:none}
  .section{padding:64px 0}
  .stat-row{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .feature{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .wrap{padding:0 18px}
  .section{padding:48px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:26px}
  .header-inner{height:66px}
  .site-header.is-scrolled .header-inner{height:60px}
  .card-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .stat-row{grid-template-columns:1fr 1fr;gap:16px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 22px}
  .cta-band .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cat-hero{padding:36px 0 56px}
  .cat-hero .lede{font-size:16px}
}
@media (max-width:479px){
  .stat-row{grid-template-columns:1fr}
}