/* roulang page: index */
:root{
  --ink:#100E1A;
  --ink-2:#1C1730;
  --ink-3:#0C0A14;
  --paper:#F6F2EA;
  --paper-2:#EAE4D7;
  --gold:#E8B54B;
  --gold-2:#F3C666;
  --aurora:#56C8B8;
  --t1:rgba(255,255,255,.94);
  --t2:rgba(255,255,255,.66);
  --t3:rgba(255,255,255,.42);
  --p1:#1A1630;
  --p2:#4C4760;
  --p3:#7C7790;
  --err:#E06B5A;
  --warn:#D9A441;
  --ok:#56C8B8;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.14);
  --line-3:rgba(255,255,255,.18);
  --r-card:14px;
  --r-btn:8px;
  --r-input:8px;
  --r-img:12px;
  --r-pill:999px;
  --shadow-lift:0 20px 40px rgba(0,0,0,.35);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink);
  color:var(--t1);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:inherit;text-decoration:none;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--gold);
  outline-offset:2px;
  border-radius:4px;
}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2{font-family:var(--serif);font-weight:600;letter-spacing:-.01em;}
::selection{background:var(--gold);color:var(--ink);}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section-head{margin-bottom:48px;max-width:720px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;color:var(--gold);
  margin-bottom:16px;font-weight:600;
}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--gold);display:block;}
h2{font-size:clamp(1.7rem,3vw,2.4rem);line-height:1.2;}
.section-head p{margin-top:16px;color:var(--t2);font-size:16px;max-width:640px;}
.muted{color:var(--t2);}
.tiny{font-size:13px;letter-spacing:.02em;color:var(--t3);}
.num{font-variant-numeric:tabular-nums;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
  white-space:nowrap;
}
.btn .arw{transition:transform .18s var(--ease);display:inline-block;}
.btn:hover .arw{transform:translateX(3px);}
.btn:active{transform:translateY(1px);}
.btn--gold{background:var(--gold);color:#14101F;}
.btn--gold:hover{background:var(--gold-2);transform:translateY(-2px);}
.btn--gold:active{transform:translateY(1px);}
.btn--ghost{background:transparent;color:var(--t1);border-color:var(--line-2);}
.btn--ghost:hover{border-color:var(--gold);color:var(--gold-2);transform:translateY(-2px);}
.btn--sm{height:40px;padding:0 18px;font-size:14px;}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  height:72px;
  display:flex;align-items:center;
  transition:background .25s var(--ease),border-color .25s var(--ease),backdrop-filter .25s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:var(--ink-3);
  border-bottom-color:var(--line);
}
.header-inner{display:flex;align-items:center;gap:32px;width:100%;}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--serif);font-size:19px;font-weight:600;letter-spacing:.01em;
  color:var(--t1);flex-shrink:0;
}
.brand-mark{
  width:26px;height:26px;border-radius:50%;
  border:1px solid var(--gold);position:relative;flex-shrink:0;
  background:radial-gradient(circle at 50% 50%,rgba(232,181,75,.35),transparent 62%);
}
.brand-mark::after{
  content:"";position:absolute;top:50%;left:50%;width:5px;height:5px;border-radius:50%;
  background:var(--gold);transform:translate(-50%,-50%);
}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:auto;}
.main-nav a{
  font-size:15px;letter-spacing:.01em;color:var(--t2);
  padding:6px 0;position:relative;transition:color .18s var(--ease);
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--gold);transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.main-nav a:hover{color:var(--t1);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.is-active{color:var(--t1);}
.main-nav a.is-active::after{transform:scaleX(1);}
.header-cta{margin-left:8px;}

/* ---------- mobile tab bar ---------- */
.tabbar{
  display:none;
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:var(--ink-3);
  border-top:1px solid var(--line-2);
  padding-bottom:env(safe-area-inset-bottom);
}
.tabbar ul{display:grid;grid-template-columns:repeat(4,1fr);}
.tabbar a{
  height:56px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:12px;color:var(--t3);position:relative;transition:color .18s var(--ease);
}
.tabbar svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.6;}
.tabbar a.is-active{color:var(--gold);}
.tabbar a.is-active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:26px;height:2px;background:var(--gold);
}

/* ---------- hero ---------- */
.hero{
  position:relative;min-height:88vh;display:flex;align-items:center;
  padding:140px 0 96px;overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(16,14,26,.78) 0%,rgba(16,14,26,.88) 52%,var(--ink) 100%);
}
.hero-stars{
  position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(1.5px 1.5px at 12% 28%,rgba(255,255,255,.75),transparent 100%),
    radial-gradient(1.5px 1.5px at 78% 18%,rgba(255,255,255,.6),transparent 100%),
    radial-gradient(1.2px 1.2px at 34% 62%,rgba(255,255,255,.55),transparent 100%),
    radial-gradient(1.6px 1.6px at 64% 74%,rgba(255,255,255,.5),transparent 100%),
    radial-gradient(1.2px 1.2px at 88% 52%,rgba(255,255,255,.45),transparent 100%),
    radial-gradient(1.4px 1.4px at 22% 84%,rgba(255,255,255,.4),transparent 100%);
  animation:twinkle 6s ease-in-out infinite;
}
@keyframes twinkle{0%,100%{opacity:.35;}50%{opacity:.7;}}
.hero-inner{position:relative;z-index:2;max-width:860px;}
.hero h1{
  font-size:clamp(2.6rem,5.6vw,4.5rem);
  line-height:1.08;letter-spacing:-.01em;margin-bottom:24px;
}
.hero h1 em{font-style:normal;color:var(--gold);}
.hero-sub{
  font-size:clamp(16px,1.4vw,18px);color:var(--t2);max-width:640px;margin-bottom:40px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:64px;}
.trust-band{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  border-top:1px solid var(--line);padding-top:32px;max-width:860px;
}
.trust-item .tnum{
  font-family:var(--serif);font-size:clamp(1.6rem,2.6vw,2.2rem);
  color:var(--gold);line-height:1.1;font-variant-numeric:tabular-nums;
}
.trust-item .tlabel{font-size:13px;color:var(--t3);letter-spacing:.02em;margin-top:8px;}

/* ---------- flow timeline ---------- */
.flow-grid{
  display:grid;grid-template-columns:repeat(5,1fr);gap:0;margin-top:8px;
}
.flow-step{position:relative;padding:0 20px 0 0;}
.flow-step::before{
  content:"";position:absolute;top:9px;left:0;right:0;height:1px;
  border-top:1px dashed rgba(255,255,255,.18);
}
.flow-step:last-child::before{right:auto;width:100%;}
.flow-step .dot{
  position:relative;z-index:2;width:19px;height:19px;border-radius:50%;
  background:var(--ink);border:1px solid var(--line-3);
  display:flex;align-items:center;justify-content:center;margin-bottom:24px;
}
.flow-step .dot i{width:6px;height:6px;border-radius:50%;background:var(--t3);display:block;}
.flow-step.is-on .dot{border-color:var(--gold);box-shadow:0 0 0 2px rgba(232,181,75,.16);}
.flow-step.is-on .dot i{background:var(--gold);}
.flow-step.is-on::before{border-top:1px solid var(--gold);}
.flow-step .fnum{font-family:var(--serif);font-size:28px;color:var(--gold);line-height:1;font-variant-numeric:tabular-nums;}
.flow-step h3{font-size:17px;font-weight:600;margin:12px 0 8px;font-family:var(--sans);}
.flow-step p{font-size:14px;color:var(--t2);line-height:1.7;}

/* ---------- highlight asymmetric ---------- */
.hl-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:start;}
.hl-figure{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);}
.hl-figure img{aspect-ratio:16/11;object-fit:cover;width:100%;border-radius:0;}
.hl-figure figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:24px;
  background:linear-gradient(180deg,transparent,rgba(12,10,20,.92));
  font-size:14px;color:var(--t2);
}
.hl-list{display:flex;flex-direction:column;}
.hl-item{padding:24px 0;border-bottom:1px solid var(--line);}
.hl-item:first-child{padding-top:0;}
.hl-item:last-child{border-bottom:none;}
.hl-item h3{
  font-family:var(--sans);font-size:18px;font-weight:600;display:flex;align-items:center;gap:10px;margin-bottom:10px;
}
.hl-item h3::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--aurora);flex-shrink:0;
}
.hl-item p{font-size:15px;color:var(--t2);}

/* ---------- pricing ---------- */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:end;}
.plan{
  background:var(--ink-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px 28px;position:relative;display:flex;flex-direction:column;height:100%;
  transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.plan:hover{border-color:var(--line-2);transform:translateY(-3px);}
.plan--featured{
  border-color:var(--gold);transform:translateY(-12px);
  box-shadow:var(--shadow-lift);padding:36px 32px;
}
.plan--featured:hover{transform:translateY(-15px);}
.plan-tag{
  position:absolute;top:-13px;left:32px;
  background:var(--gold);color:#14101F;font-size:12px;font-weight:600;
  padding:4px 12px;border-radius:var(--r-pill);letter-spacing:.04em;
}
.plan h3{font-family:var(--serif);font-size:22px;font-weight:600;margin-bottom:8px;}
.plan .desc{font-size:14px;color:var(--t2);min-height:44px;}
.plan .price{
  font-family:var(--serif);font-size:clamp(2.2rem,3.6vw,2.8rem);color:var(--t1);
  line-height:1.1;margin:20px 0 4px;font-variant-numeric:tabular-nums;
}
.plan .price small{font-size:14px;font-family:var(--sans);color:var(--t3);margin-left:6px;}
.plan .unit{font-size:13px;color:var(--t3);letter-spacing:.02em;}
.plan .btn{width:100%;margin:24px 0 28px;}
.plan ul{display:flex;flex-direction:column;gap:14px;}
.plan li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:var(--t2);line-height:1.6;}
.plan li svg{width:16px;height:16px;flex-shrink:0;margin-top:4px;stroke-width:2.2;fill:none;}
.plan li.yes svg{stroke:var(--aurora);}
.plan li.no{color:var(--t3);}
.plan li.no svg{stroke:var(--t3);}

/* ---------- news ---------- */
.news-lead{
  display:grid;grid-template-columns:40% 60%;gap:0;
  background:var(--ink-2);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;position:relative;margin-bottom:24px;
  transition:background .18s var(--ease),border-color .18s var(--ease);
}
.news-lead::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--gold);
  transform:scaleY(0);transform-origin:top;transition:transform .18s var(--ease);
}
.news-lead:hover{background:#221B3A;border-color:var(--line-2);}
.news-lead:hover::before{transform:scaleY(1);}
.news-lead .thumb{overflow:hidden;}
.news-lead .thumb img{height:100%;width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;}
.news-lead .body{padding:32px 36px;display:flex;flex-direction:column;justify-content:center;gap:14px;}
.news-list{display:flex;flex-direction:column;}
.news-row{
  display:flex;align-items:center;gap:24px;padding:20px 24px 20px 20px;
  background:var(--ink-2);border:1px solid var(--line);border-radius:var(--r-card);
  margin-bottom:12px;position:relative;overflow:hidden;
  transition:background .18s var(--ease),border-color .18s var(--ease);
}
.news-row::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--gold);
  transform:scaleY(0);transform-origin:top;transition:transform .18s var(--ease);
}
.news-row:hover{background:#221B3A;border-color:var(--line-2);}
.news-row:hover::before{transform:scaleY(1);}
.news-row .txt{flex:1;min-width:0;}
.news-row .thumb{width:120px;height:80px;flex-shrink:0;overflow:hidden;border-radius:10px;}
.news-row .thumb img{width:120px;height:80px;object-fit:cover;border-radius:10px;}
.n-title{
  font-size:17px;font-weight:600;color:var(--t1);line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-lead .n-title{font-size:clamp(1.15rem,1.8vw,1.45rem);font-family:var(--serif);line-height:1.4;}
.n-sum{
  font-size:14px;color:var(--t2);line-height:1.7;margin-top:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.n-meta{display:flex;align-items:center;gap:14px;margin-top:12px;flex-wrap:wrap;}
.badge{
  display:inline-flex;align-items:center;height:22px;padding:0 10px;
  border:1px solid var(--aurora);color:var(--aurora);border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.02em;background:rgba(86,200,184,.06);
}
.n-link{font-size:13px;color:var(--gold);display:inline-flex;align-items:center;gap:6px;}
.news-lead a.cover-link{position:absolute;inset:0;z-index:3;}
.empty-state{
  border:1px dashed rgba(255,255,255,.16);border-radius:var(--r-card);
  padding:48px;text-align:center;color:var(--t2);
}
.empty-state svg{width:32px;height:32px;stroke:var(--gold);fill:none;stroke-width:1.4;margin:0 auto 16px;}
.empty-state p{font-size:14px;margin-bottom:12px;}
.empty-state a{color:var(--gold);font-size:14px;}

/* ---------- faq ---------- */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start;}
.faq-side{position:sticky;top:104px;}
.faq-side p{color:var(--t2);font-size:15px;margin-top:16px;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:24px 48px 24px 0;position:relative;
  font-size:17px;font-weight:600;color:var(--t1);
  transition:color .18s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--gold-2);}
.faq-item summary::after{
  content:"";position:absolute;right:8px;top:34px;width:14px;height:14px;
  border-right:1.5px solid var(--gold);border-bottom:1.5px solid var(--gold);
  transform:rotate(45deg);transition:transform .22s var(--ease);
}
.faq-item[open] summary::after{transform:rotate(225deg);}
.faq-item .ans{padding:0 48px 26px 0;font-size:15px;color:var(--t2);line-height:1.8;}

/* ---------- cta ---------- */
.cta-band{
  position:relative;background:var(--ink-3);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:96px 0;min-height:360px;display:flex;align-items:center;overflow:hidden;
}
.cta-band .cta-stars{
  position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(1.4px 1.4px at 18% 30%,rgba(255,255,255,.5),transparent 100%),
    radial-gradient(1.2px 1.2px at 46% 72%,rgba(255,255,255,.4),transparent 100%),
    radial-gradient(1.5px 1.5px at 74% 24%,rgba(255,255,255,.45),transparent 100%),
    radial-gradient(1.1px 1.1px at 90% 66%,rgba(255,255,255,.35),transparent 100%);
  animation:twinkle 6s ease-in-out infinite;
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;width:100%;}
.cta-inner h2{font-size:clamp(1.7rem,2.8vw,2.2rem);margin-bottom:16px;}
.cta-inner p{color:var(--t2);font-size:15px;max-width:440px;}
.login-form{background:var(--ink-2);border:1px solid var(--line);border-radius:var(--r-card);padding:32px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;color:var(--t3);letter-spacing:.02em;margin-bottom:8px;}
.field input{
  width:100%;height:48px;padding:0 16px;border-radius:var(--r-input);
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.14);
  color:var(--t1);transition:border-color .18s var(--ease);
}
.field input::placeholder{color:var(--t3);}
.field input:focus{border-color:var(--gold);outline:none;}
.field .hint{font-size:13px;color:var(--t3);margin-top:8px;}
.field.is-error input{border-color:var(--err);}
.field.is-error .hint{color:var(--err);}
.form-note{font-size:13px;color:var(--t3);margin-top:16px;line-height:1.7;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-3);border-top:1px solid var(--line);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:56px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--t2);max-width:320px;line-height:1.8;}
.footer-col h4{
  font-size:13px;letter-spacing:.08em;color:var(--gold);font-weight:600;margin-bottom:20px;
}
.footer-col li{margin-bottom:12px;}
.footer-col a{font-size:14px;color:var(--t2);transition:color .18s var(--ease);}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.footer-bottom{
  border-top:1px solid var(--line);padding:24px 0 32px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--t3);letter-spacing:.02em;
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .48s var(--ease),transform .48s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media (max-width:1280px){
  .container{max-width:1200px;}
}
@media (max-width:1024px){
  .section{padding:72px 0;}
  .flow-grid{grid-template-columns:1fr;gap:0;}
  .flow-step{padding:0 0 32px 32px;}
  .flow-step::before{
    top:0;bottom:0;left:9px;right:auto;width:1px;height:auto;border-top:none;
    border-left:1px dashed rgba(255,255,255,.18);
  }
  .flow-step:last-child::before{height:28px;}
  .flow-step .dot{position:absolute;left:0;top:0;margin-bottom:0;}
  .flow-step .fnum{margin-top:0;}
  .hl-grid{grid-template-columns:1fr;gap:32px;}
  .plans{grid-template-columns:1fr;gap:20px;align-items:stretch;}
  .plan--featured{transform:none;}
  .plan--featured:hover{transform:translateY(-3px);}
  .faq-grid{grid-template-columns:1fr;gap:24px;}
  .faq-side{position:static;}
  .cta-inner{grid-template-columns:1fr;gap:40px;}
}
@media (max-width:768px){
  .container{padding:0 24px;}
  .main-nav{display:none;}
  .header-cta{display:none;}
  .tabbar{display:block;}
  body{padding-bottom:72px;}
  .hero{padding:120px 0 72px;min-height:auto;}
  .hero-actions{margin-bottom:48px;}
  .trust-band{grid-template-columns:repeat(2,1fr);gap:20px;}
  .news-lead{grid-template-columns:1fr;}
  .news-lead .body{padding:24px;}
  .news-row{gap:16px;padding:16px;}
  .news-row .thumb,.news-row .thumb img{width:96px;height:66px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1/-1;}
}
@media (max-width:520px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .hero h1{font-size:2.1rem;}
  .news-row .thumb{display:none;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .plan{padding:26px 22px;}
  .login-form{padding:24px;}
  .faq-item summary{padding:20px 40px 20px 0;font-size:16px;}
  .faq-item .ans{padding:0 0 22px 0;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --ink:#100E1A;
  --ink-2:#1C1730;
  --ink-3:#0C0A14;
  --paper:#F6F2EA;
  --paper-2:#EAE4D7;
  --gold:#E8B54B;
  --gold-2:#F3C666;
  --aurora:#56C8B8;
  --t1:rgba(255,255,255,.94);
  --t2:rgba(255,255,255,.66);
  --t3:rgba(255,255,255,.42);
  --p1:#1A1630;
  --p2:#4C4760;
  --p3:#7C7790;
  --err:#E06B5A;
  --warn:#D9A441;
  --ok:#56C8B8;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.14);
  --r-card:14px;
  --r-btn:8px;
  --r-input:8px;
  --r-img:12px;
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:96px; --sp-10:120px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink);
  color:var(--t1);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea,select{font:inherit}
h1,h2,h3,h4{margin:0;font-weight:600}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--gold);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--sp-6)}
@media (min-width:1280px){.container{max-width:1280px}}
@media (max-width:1024px){.container{padding:0 var(--sp-5)}}
@media (max-width:520px){.container{padding:0 20px}}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  height:72px;display:flex;align-items:center;
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{background:var(--ink-3);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;gap:var(--sp-6);width:100%}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--serif);font-size:17px;font-weight:600;letter-spacing:.02em;
  color:var(--t1);white-space:nowrap;
}
.brand-mark{
  width:14px;height:14px;border-radius:50%;
  background:radial-gradient(circle at 34% 34%,var(--gold-2),var(--gold) 62%,rgba(232,181,75,.12));
  box-shadow:0 0 0 4px rgba(232,181,75,.10);
  flex:0 0 auto;
}
.main-nav{display:flex;align-items:center;gap:var(--sp-5);margin-left:auto}
.main-nav a{
  position:relative;font-size:15px;letter-spacing:.01em;color:var(--t2);
  padding:6px 0;transition:color .18s ease;white-space:nowrap;
}
.main-nav a:hover{color:var(--t1)}
.main-nav a.is-active{color:var(--t1)}
.main-nav a.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--gold);
}
.header-cta{margin-left:var(--sp-2)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 var(--sp-5);border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;
  transition:transform .18s ease,background .18s ease,border-color .18s ease,color .18s ease;
}
.btn--gold{background:var(--gold);color:#171226}
.btn--gold:hover{background:var(--gold-2);transform:translateY(-2px)}
.btn--gold:active{transform:translateY(-1px)}
.btn--ghost{border-color:rgba(255,255,255,.24);color:var(--t1)}
.btn--ghost:hover{border-color:var(--gold);color:var(--gold-2);transform:translateY(-2px)}
.btn--ghost:active{transform:translateY(-1px)}
.btn--sm{height:40px;padding:0 18px;font-size:14px}
.btn .arw{display:inline-block;transition:transform .18s ease}
.btn:hover .arw{transform:translateX(3px)}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none}

/* ---------- tags ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border:1px solid rgba(86,200,184,.45);border-radius:999px;
  color:var(--aurora);font-size:12px;letter-spacing:.06em;
}
.eyebrow{display:inline-block;font-size:13px;letter-spacing:.14em;color:var(--gold)}

/* ---------- hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;min-height:640px;
  display:flex;align-items:flex-end;
  padding:150px 0 96px;background:var(--ink);
}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.65}
.hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(16,14,26,.88) 0%,rgba(16,14,26,.62) 42%,rgba(16,14,26,.9) 78%,var(--ink) 100%);
}
.hero-stars{
  position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:
    radial-gradient(1.6px 1.6px at 12% 26%,rgba(255,255,255,.75),transparent 62%),
    radial-gradient(1.4px 1.4px at 68% 16%,rgba(255,255,255,.55),transparent 62%),
    radial-gradient(1.8px 1.8px at 84% 42%,rgba(232,181,75,.7),transparent 62%),
    radial-gradient(1.3px 1.3px at 32% 62%,rgba(255,255,255,.5),transparent 62%),
    radial-gradient(1.5px 1.5px at 52% 34%,rgba(255,255,255,.42),transparent 62%);
  animation:breathe 6s ease-in-out infinite;
}
@keyframes breathe{0%,100%{opacity:.35}50%{opacity:.7}}
.hero-inner{position:relative;z-index:2;width:100%}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.02em;color:var(--t3);margin-bottom:20px;
}
.crumbs a{transition:color .18s ease}
.crumbs a:hover{color:var(--gold-2)}
.crumbs .sep{color:var(--gold)}
.cat-hero h1{
  font-family:var(--serif);
  font-size:clamp(2.2rem,4.8vw,3.5rem);
  line-height:1.12;letter-spacing:-.01em;max-width:920px;margin-top:18px;
}
.hero-lead{margin-top:22px;max-width:680px;font-size:17px;line-height:1.9;color:var(--t2)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}

/* ---------- sections ---------- */
.section{padding:var(--sp-9) 0}
.section--soft{background:var(--ink-2)}
.section-head{max-width:780px;margin-bottom:var(--sp-7)}
.section-head h2{
  font-family:var(--serif);font-size:clamp(1.7rem,3vw,2.4rem);line-height:1.2;margin-top:14px;
}
.section-head p{margin-top:16px;color:var(--t2);font-size:16px}

/* ---------- stats ---------- */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;
}
.stat{background:var(--ink);padding:32px 28px}
.stat b{
  display:block;font-family:var(--serif);font-size:2rem;line-height:1.1;
  color:var(--gold);font-variant-numeric:tabular-nums;
}
.stat span{display:block;margin-top:10px;font-size:13.5px;color:var(--t3)}

/* ---------- zigzag ---------- */
.zigzag{display:flex;flex-direction:column;gap:80px}
.z-row{display:grid;grid-template-columns:repeat(12,1fr);gap:var(--sp-7);align-items:center}
.z-text{grid-column:1/7}
.z-media{grid-column:8/13}
.z-row--flip .z-text{grid-column:8/13;grid-row:1}
.z-row--flip .z-media{grid-column:1/7;grid-row:1}
.z-text h2{font-family:var(--serif);font-size:clamp(1.4rem,2.2vw,1.85rem);line-height:1.3}
.z-text p{margin-top:16px;color:var(--t2);font-size:16px}
.z-points{margin-top:22px;display:flex;flex-direction:column;gap:12px}
.z-points li{position:relative;padding-left:20px;font-size:14.5px;color:var(--t2)}
.z-points li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:1px;background:var(--gold);
}
.z-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-img);border:1px solid var(--line);
}
.z-figure{margin:0}
.z-figure figcaption{margin-top:12px;font-size:13px;color:var(--t3)}

/* ---------- check list ---------- */
.check-panel{
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--ink-2);padding:var(--sp-7);
}
.check-list{display:grid;grid-template-columns:repeat(2,1fr);gap:18px 40px}
.check-list li{position:relative;padding-left:32px;font-size:15.5px;color:var(--t2);line-height:1.75}
.check-list li::before{
  content:"";position:absolute;left:0;top:6px;width:17px;height:17px;
  border-radius:50%;border:1px solid rgba(86,200,184,.7);
}
.check-list li::after{
  content:"";position:absolute;left:4.5px;top:11px;width:7px;height:4px;
  border-left:1.6px solid var(--aurora);border-bottom:1.6px solid var(--aurora);
  transform:rotate(-45deg);
}

/* ---------- cross links ---------- */
.cross-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--sp-5)}
.cross-card{
  display:flex;flex-direction:column;gap:12px;
  padding:28px;border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--ink-2);
  transition:background .18s ease,transform .18s ease,border-color .18s ease;
}
.cross-card:hover{background:#221B3A;border-color:rgba(232,181,75,.42);transform:translateY(-2px)}
.cross-card h3{font-size:1.25rem}
.cross-card p{font-size:14px;color:var(--t2);line-height:1.8}
.cross-card .more{margin-top:auto;padding-top:12px;color:var(--gold);font-size:14px;font-weight:600}
.cross-card .more .arw{display:inline-block;transition:transform .18s ease}
.cross-card:hover .more .arw{transform:translateX(3px)}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;min-height:360px;
  display:flex;align-items:center;text-align:center;
  padding:80px 0;background:var(--ink-3);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.42;pointer-events:none;
  background-image:
    radial-gradient(1.5px 1.5px at 10% 30%,rgba(255,255,255,.7),transparent 60%),
    radial-gradient(1.3px 1.3px at 26% 72%,rgba(255,255,255,.45),transparent 60%),
    radial-gradient(1.7px 1.7px at 54% 22%,rgba(232,181,75,.65),transparent 60%),
    radial-gradient(1.4px 1.4px at 78% 62%,rgba(255,255,255,.5),transparent 60%),
    radial-gradient(1.6px 1.6px at 92% 34%,rgba(86,200,184,.55),transparent 60%);
  animation:breathe 6s ease-in-out infinite;
}
.cta-band .container{position:relative;z-index:2}
.cta-band h2{
  font-family:var(--serif);font-size:clamp(1.7rem,3vw,2.3rem);line-height:1.25;
  max-width:640px;margin:16px auto 0;
}
.cta-band p{margin:20px auto 0;max-width:600px;color:var(--t2);font-size:16px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:34px}
.cta-note{margin-top:20px;font-size:13px;color:var(--t3)}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-3);padding:72px 0 0;border-top:1px solid var(--line)}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:var(--sp-7);
  padding-bottom:var(--sp-7);
}
.footer-brand .brand{font-size:17px}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--t2);max-width:330px;line-height:1.85}
.footer-col h4{font-size:13px;letter-spacing:.08em;color:var(--gold);font-weight:600}
.footer-col ul{margin-top:18px;display:flex;flex-direction:column;gap:12px}
.footer-col a{font-size:14px;color:var(--t2);transition:color .18s ease}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:24px 0 32px;border-top:1px solid var(--line);
  font-size:13px;color:var(--t3);
}

/* ---------- mobile tab ---------- */
.mobile-tab{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:none;background:var(--ink-3);border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
}
.mobile-tab ul{display:grid;grid-template-columns:repeat(4,1fr);height:56px}
.mobile-tab a{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:4px;font-size:12px;color:var(--t3);transition:color .18s ease;
}
.mobile-tab a svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.6}
.mobile-tab a:hover{color:var(--t1)}
.mobile-tab a.is-active{color:var(--gold)}
.mobile-tab a.is-active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:24px;height:2px;background:var(--gold);
}

/* ---------- motion ---------- */
.fade-up{
  opacity:0;transform:translateY(12px);
  transition:opacity .48s cubic-bezier(.22,.61,.36,1),transform .48s cubic-bezier(.22,.61,.36,1);
}
.fade-up.is-in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .main-nav{gap:20px}
  .main-nav a{font-size:14px}
  .z-row{grid-template-columns:1fr;gap:var(--sp-5)}
  .z-text,.z-media,.z-row--flip .z-text,.z-row--flip .z-media{grid-column:1/-1;grid-row:auto}
  .z-row--flip .z-text{order:-1}
  .stats{grid-template-columns:repeat(2,1fr)}
  .cross-grid{grid-template-columns:1fr 1fr}
  .section{padding:72px 0}
  .check-panel{padding:var(--sp-6)}
}
@media (max-width:768px){
  body{padding-bottom:72px}
  .mobile-tab{display:block}
  .main-nav{display:none}
  .header-cta{display:none}
  .header-inner{justify-content:space-between}
  .cat-hero{min-height:520px;padding:120px 0 72px}
  .hero-lead{font-size:16px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:var(--sp-6)}
  .section{padding:64px 0}
  .zigzag{gap:56px}
}
@media (max-width:520px){
  .stats{grid-template-columns:1fr}
  .cross-grid{grid-template-columns:1fr}
  .check-list{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{justify-content:flex-start}
  .hero-actions .btn,.cta-actions .btn{width:100%}
  .section{padding:56px 0}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .fade-up{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --ink:#100E1A;--ink-2:#1C1730;--ink-3:#0C0A14;--ink-4:#221B3A;
  --paper:#F6F2EA;--paper-2:#EAE4D7;
  --gold:#E8B54B;--gold-2:#F3C666;--gold-deep:#9A6E12;
  --aurora:#56C8B8;
  --t1:rgba(255,255,255,.94);--t2:rgba(255,255,255,.66);--t3:rgba(255,255,255,.42);
  --p1:#1A1630;--p2:#4C4760;--p3:#7C7790;
  --err:#E06B5A;--warn:#D9A441;--ok:#56C8B8;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.16);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --r-card:14px;--r-btn:8px;--r-img:12px;
  --max:1200px;
  --shadow-lift:0 20px 40px rgba(0,0,0,.35);
  --shadow-paper:0 1px 2px rgba(16,14,26,.06);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--ink);color:var(--t1);
  font-family:var(--sans);font-size:16px;line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:600}
p{margin:0}
ul,ol{margin:0;padding:0}
:focus-visible{outline:2px solid var(--gold);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 32px}
.num{font-variant-numeric:tabular-nums}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(16,14,26,.88);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{background:var(--ink-3);border-bottom-color:var(--line)}
.header-inner{height:72px;display:flex;align-items:center;gap:24px}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--serif);font-size:18px;font-weight:600;letter-spacing:.01em;
  color:var(--t1);white-space:nowrap;
}
.brand-mark{
  width:13px;height:13px;border-radius:50%;flex:none;
  background:radial-gradient(circle at 32% 30%,var(--gold-2),var(--gold));
  box-shadow:0 0 0 4px rgba(232,181,75,.12);
}
.main-nav{display:flex;align-items:center;gap:28px;margin:0 auto}
.main-nav a{
  position:relative;font-size:15px;letter-spacing:.01em;color:var(--t2);
  padding:6px 0;transition:color .18s ease;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;
  background:var(--gold);transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.main-nav a:hover{color:#fff}
.main-nav a:hover::after,.main-nav a.is-active::after{transform:scaleX(1)}
.main-nav a.is-active{color:#fff}
.header-cta{flex:none}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  border:1px solid transparent;background:transparent;cursor:pointer;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform .18s ease,background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn .arrow{transition:transform .18s ease}
.btn:hover .arrow{transform:translateX(3px)}
.btn:active{transform:translateY(1px)}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn--gold{background:var(--gold);color:var(--ink)}
.btn--gold:hover{background:var(--gold-2);transform:translateY(-2px)}
.btn--ghost{border-color:rgba(255,255,255,.22);color:var(--t1)}
.btn--ghost:hover{border-color:var(--gold);color:var(--gold-2);transform:translateY(-2px)}
.btn--sm{height:40px;padding:0 18px;font-size:14px}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;overflow:hidden;
  padding:56px 0 48px;
  background:
    radial-gradient(1.4px 1.4px at 12% 22%,rgba(255,255,255,.35),transparent 60%),
    radial-gradient(1.2px 1.2px at 68% 12%,rgba(255,255,255,.28),transparent 60%),
    radial-gradient(1.6px 1.6px at 86% 58%,rgba(232,181,75,.32),transparent 60%),
    radial-gradient(1.1px 1.1px at 32% 76%,rgba(255,255,255,.22),transparent 60%),
    linear-gradient(180deg,var(--ink) 0%,var(--ink) 78%,rgba(12,10,20,.96) 100%);
}
.article-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--line);
}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:12px;letter-spacing:.02em;color:var(--t3);
}
.breadcrumb a{color:var(--t3);transition:color .18s ease}
.breadcrumb a:hover{color:var(--gold)}
.breadcrumb .sep{color:var(--gold)}
.breadcrumb .current{color:var(--t2);max-width:60vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-hero h1{
  font-family:var(--serif);
  font-size:clamp(2rem,4.2vw,3.3rem);
  line-height:1.16;letter-spacing:-.01em;
  margin:22px 0 0;max-width:920px;
}
.article-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:18px;
  margin-top:26px;font-size:13px;letter-spacing:.02em;color:var(--t3);
}
.article-meta time{color:var(--t2);font-variant-numeric:tabular-nums}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:999px;font-size:12px;letter-spacing:.04em;
  border:1px solid rgba(86,200,184,.5);color:var(--aurora);background:rgba(86,200,184,.06);
}
.hero-lead{
  max-width:760px;margin-top:20px;font-size:15px;line-height:1.9;color:var(--t2);
}

/* ---------- 正文区 ---------- */
.article-main{background:var(--paper);color:var(--p1);padding:72px 0 88px}
.article-wrap{max-width:760px;margin:0 auto}
.article-cover{
  border-radius:var(--r-img);overflow:hidden;margin-bottom:44px;
  aspect-ratio:16/9;background:var(--paper-2);box-shadow:var(--shadow-paper);
}
.article-cover img{width:100%;height:100%;object-fit:cover}

.prose{font-size:17px;line-height:1.9;color:var(--p2)}
.prose > *:first-child{margin-top:0}
.prose h2{
  font-family:var(--serif);font-size:clamp(1.4rem,2.4vw,1.9rem);line-height:1.3;
  color:var(--p1);margin:48px 0 16px;letter-spacing:-.005em;
}
.prose h3{font-size:1.15rem;color:var(--p1);margin:34px 0 12px;line-height:1.45}
.prose h4{font-size:1rem;color:var(--p1);margin:26px 0 10px}
.prose p{margin:0 0 1.1em}
.prose a{color:var(--gold-deep);border-bottom:1px solid rgba(154,110,18,.32);transition:color .18s ease,border-color .18s ease}
.prose a:hover{color:#7A5508;border-bottom-color:#7A5508}
.prose ul,.prose ol{padding-left:22px;margin:0 0 1.2em}
.prose ul{list-style:disc}
.prose ol{list-style:decimal}
.prose li{margin:8px 0;line-height:1.6}
.prose blockquote{
  margin:28px 0;padding:6px 0 6px 20px;border-left:3px solid var(--gold);
  font-family:var(--serif);color:var(--p1);font-size:1.02rem;background:rgba(232,181,75,.06);
  border-radius:0 8px 8px 0;
}
.prose img{border-radius:var(--r-img);margin:26px 0}
.prose figure{margin:26px 0}
.prose figcaption{font-size:13px;color:var(--p3);text-align:left;margin-top:-14px;padding-bottom:6px}
.prose hr{border:0;border-top:1px solid rgba(26,22,48,.12);margin:40px 0}
.prose table{width:100%;border-collapse:collapse;font-size:15px;min-width:520px}
.prose .table-wrap{overflow-x:auto;margin:26px 0;border-radius:10px}
.prose th,.prose td{
  border-bottom:1px solid rgba(26,22,48,.12);padding:12px 14px;text-align:left;
  line-height:1.6;color:var(--p2);
}
.prose th{color:var(--p1);font-weight:600;background:rgba(26,22,48,.035)}
.prose code{background:rgba(26,22,48,.07);padding:2px 6px;border-radius:4px;font-size:.9em}
.prose pre{background:var(--ink);color:var(--t1);padding:20px;border-radius:12px;overflow-x:auto;font-size:14px;line-height:1.7;margin:26px 0}
.prose pre code{background:none;padding:0;color:inherit}

.empty-state{
  border:1px dashed rgba(26,22,48,.22);border-radius:var(--r-card);
  padding:48px 32px;text-align:center;color:var(--p2);background:rgba(255,255,255,.5);
}
.empty-state .star{font-size:22px;color:var(--gold);display:block;margin-bottom:12px;line-height:1}
.empty-state p{font-size:14px;color:var(--p2);margin-bottom:14px}
.empty-state a{color:var(--gold-deep);border-bottom:1px solid rgba(154,110,18,.35);font-size:14px}

/* ---------- 相关推荐 ---------- */
.related{padding:96px 0;background:var(--ink)}
.section-head{margin-bottom:40px;max-width:720px}
.section-head h2{
  font-family:var(--serif);font-size:clamp(1.7rem,3vw,2.4rem);
  line-height:1.2;letter-spacing:-.01em;
}
.section-head p{margin-top:14px;font-size:15px;color:var(--t2);line-height:1.85}
.section-eyebrow{
  display:inline-block;font-size:13px;letter-spacing:.08em;color:var(--gold);
  margin-bottom:14px;
}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.related-card{
  position:relative;display:flex;flex-direction:column;
  background:var(--ink-2);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:background .18s ease,transform .18s ease,border-color .18s ease;
}
.related-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--gold);
  transform:scaleY(0);transform-origin:top;transition:transform .18s ease;
}
.related-card:hover{background:var(--ink-4);transform:translateY(-2px);border-color:rgba(255,255,255,.14)}
.related-card:hover::before{transform:scaleY(1)}
.related-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.related-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.related-body h3{
  font-size:16px;line-height:1.5;font-weight:600;color:var(--t1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.related-body p{
  font-size:14px;line-height:1.75;color:var(--t2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.related-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:10px;border-top:1px solid var(--line);
}
.related-foot time{font-size:12px;color:var(--t3);font-variant-numeric:tabular-nums}
.related-foot .more{font-size:13px;color:var(--gold);display:inline-flex;align-items:center;gap:6px}
.related-card:hover .more .arrow{transform:translateX(3px)}
.more .arrow{transition:transform .18s ease}
.related .empty-state{
  border-color:var(--line-2);background:transparent;color:var(--t2);
}
.related .empty-state p{color:var(--t2)}
.related .empty-state a{color:var(--gold);border-bottom-color:rgba(232,181,75,.4)}

/* ---------- 文章底部导航 ---------- */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:48px}
.post-nav a{
  display:flex;flex-direction:column;gap:8px;
  border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 22px;background:var(--ink-2);
  transition:background .18s ease,border-color .18s ease,transform .18s ease;
}
.post-nav a:hover{background:var(--ink-4);border-color:rgba(255,255,255,.16);transform:translateY(-2px)}
.post-nav .label{font-size:12px;letter-spacing:.08em;color:var(--gold)}
.post-nav .value{font-size:15px;color:var(--t1);line-height:1.6}
.back-row{display:flex;justify-content:center;margin-top:40px}

/* ---------- CTA 通栏 ---------- */
.cta-band{
  position:relative;overflow:hidden;min-height:360px;
  display:flex;align-items:center;text-align:center;
  background:
    radial-gradient(1.4px 1.4px at 10% 30%,rgba(255,255,255,.3),transparent 60%),
    radial-gradient(1.2px 1.2px at 76% 22%,rgba(232,181,75,.32),transparent 60%),
    radial-gradient(1.5px 1.5px at 46% 82%,rgba(255,255,255,.22),transparent 60%),
    radial-gradient(1.1px 1.1px at 88% 72%,rgba(255,255,255,.24),transparent 60%),
    var(--ink-3);
  padding:96px 0;
}
.cta-band .inner{max-width:720px;margin:0 auto}
.cta-band h2{
  font-family:var(--serif);font-size:clamp(1.8rem,3.4vw,2.6rem);
  line-height:1.2;letter-spacing:-.01em;
}
.cta-band p{margin-top:16px;font-size:16px;color:var(--t2);line-height:1.9}
.cta-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:32px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-3);border-top:1px solid var(--line);padding:72px 0 32px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--t2);max-width:320px}
.footer-col h4{
  font-size:13px;letter-spacing:.08em;color:var(--gold);font-weight:600;margin-bottom:18px;
}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:12px}
.footer-col a{
  font-size:14px;color:var(--t2);position:relative;
  transition:color .18s ease,transform .18s ease;
  display:inline-block;
}
.footer-col a:hover{color:#fff;transform:translateX(3px);text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--gold)}
.footer-bottom{
  margin-top:56px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--t3);
}
.footer-bottom span{font-variant-numeric:tabular-nums}

/* ---------- 移动端底部 Tab ---------- */
.mobile-tab{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  height:56px;padding-bottom:env(safe-area-inset-bottom);
  background:var(--ink-3);border-top:1px solid var(--line);
}
.mobile-tab a{
  position:relative;flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:11px;letter-spacing:.02em;color:var(--t3);transition:color .18s ease;
}
.mobile-tab a svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.mobile-tab a::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%) scaleX(0);
  width:26px;height:2px;background:var(--gold);transition:transform .2s ease;
}
.mobile-tab a.is-active{color:var(--gold)}
.mobile-tab a.is-active::before{transform:translateX(-50%) scaleX(1)}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .48s cubic-bezier(.22,.61,.36,1),transform .48s cubic-bezier(.22,.61,.36,1)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1280px){
  .container{padding:0 32px}
}
@media (max-width:1024px){
  .container{padding:0 24px}
  .main-nav{gap:20px}
  .main-nav a{font-size:14px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
  .article-main{padding:64px 0 72px}
  .related{padding:72px 0}
}
@media (max-width:768px){
  body{padding-bottom:72px}
  .main-nav{display:none}
  .header-cta{display:none}
  .header-inner{height:60px;justify-content:space-between}
  .brand{font-size:16px}
  .mobile-tab{display:flex}
  .article-hero{padding:36px 0 32px}
  .article-main{padding:48px 0 56px}
  .related{padding:56px 0}
  .related-grid{grid-template-columns:1fr}
  .post-nav{grid-template-columns:1fr}
  .cta-band{min-height:auto;padding:64px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .breadcrumb .current{max-width:38vw}
}
@media (max-width:520px){
  .container{padding:0 20px}
  .article-hero h1{font-size:1.8rem}
  .article-meta{gap:12px}
  .hero-lead{font-size:14px}
  .prose{font-size:16px;line-height:1.88}
  .article-cover{margin-bottom:28px}
  .footer-grid{grid-template-columns:1fr}
  .btn{width:100%}
  .cta-actions .btn{width:100%}
  .post-nav a{padding:16px 18px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --ink:#100E1A;
  --ink-2:#1C1730;
  --ink-2h:#221B3A;
  --ink-3:#0C0A14;
  --paper:#F6F2EA;
  --paper-2:#EAE4D7;
  --gold:#E8B54B;
  --gold-2:#F3C666;
  --aurora:#56C8B8;
  --t1:rgba(255,255,255,.94);
  --t2:rgba(255,255,255,.66);
  --t3:rgba(255,255,255,.42);
  --p1:#1A1630;
  --p2:#4C4760;
  --p3:#7C7790;
  --err:#E06B5A;
  --warn:#D9A441;
  --ok:#56C8B8;
  --line:rgba(255,255,255,.10);
  --line-2:rgba(255,255,255,.18);
  --line-paper:rgba(26,22,48,.12);
  --r-card:14px;
  --r-btn:8px;
  --r-input:8px;
  --r-img:12px;
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --pad-section:96px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink);
  color:var(--t1);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  padding-top:72px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img);object-fit:cover;aspect-ratio:16/9;background:var(--ink-2)}
a{color:inherit;text-decoration:none}
a:hover{color:var(--gold)}
button,input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--gold);outline-offset:2px}
::selection{background:rgba(232,181,75,.28)}
.skip-link{
  position:absolute;left:-9999px;top:0;background:var(--gold);color:var(--ink);
  padding:10px 18px;border-radius:0 0 var(--r-btn) 0;z-index:200;font-weight:600;
}
.skip-link:focus{left:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:var(--pad-section) 0}
.section--tight{padding:64px 0}
.section--paper{background:var(--paper);color:var(--p1)}
.section--paper h2,.section--paper h3{color:var(--p1)}
.section--paper p{color:var(--p2)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(16,14,26,.82);
  backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid transparent;
  transition:background .25s var(--ease),border-color .25s var(--ease);
}
.site-header.is-scrolled{background:var(--ink-3);border-bottom-color:var(--line)}
.header-inner{
  height:72px;display:flex;align-items:center;gap:32px;
}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--serif);font-size:19px;font-weight:600;letter-spacing:.01em;
  color:var(--t1);white-space:nowrap;
}
.brand:hover{color:var(--t1)}
.brand-mark{
  width:14px;height:14px;flex:0 0 14px;border-radius:50%;
  background:var(--gold);
  box-shadow:0 0 0 4px rgba(232,181,75,.16);
  animation:starBreath 6s ease-in-out infinite;
}
@keyframes starBreath{0%,100%{opacity:.55}50%{opacity:.95}}
.main-nav{
  display:flex;align-items:center;gap:28px;margin-left:auto;
}
.main-nav a{
  position:relative;font-size:15px;letter-spacing:.01em;color:var(--t2);
  padding:6px 0;transition:color .18s var(--ease);
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--gold);transform:scaleX(0);transform-origin:left;
  transition:transform .18s var(--ease);
}
.main-nav a:hover,.main-nav a:focus-visible{color:var(--t1)}
.main-nav a:hover::after,.main-nav a.is-active::after{transform:scaleX(1)}
.main-nav a.is-active{color:var(--t1)}
.header-cta{margin-left:8px}
.nav-toggle{
  display:none;margin-left:auto;width:42px;height:42px;border-radius:var(--r-btn);
  background:transparent;border:1px solid var(--line-2);cursor:pointer;
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:1.5px;background:var(--t1);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:1.5px;background:var(--t1);
}
.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:48px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;cursor:pointer;
  border:1px solid transparent;transition:transform .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn .arrow{transition:transform .18s var(--ease)}
.btn:hover .arrow{transform:translateX(3px)}
.btn--gold{background:var(--gold);color:var(--ink)}
.btn--gold:hover{background:var(--gold-2);color:var(--ink);transform:translateY(-2px)}
.btn--ghost{background:transparent;border-color:var(--line-2);color:var(--t1)}
.btn--ghost:hover{border-color:var(--gold);color:var(--gold);transform:translateY(-2px)}
.btn--sm{height:40px;padding:0 18px;font-size:14px}
.btn:active{transform:translateY(1px)}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none}

/* ---------- 标签 / 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;letter-spacing:.04em;
  border:1px solid rgba(86,200,184,.5);color:var(--aurora);
  background:rgba(86,200,184,.06);
}
.badge--gold{border-color:rgba(232,181,75,.5);color:var(--gold);background:rgba(232,181,75,.07)}

/* ---------- 面包屑 ---------- */
.crumb{font-size:12px;letter-spacing:.06em;color:var(--t3);display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.crumb a{color:var(--t3)}
.crumb a:hover{color:var(--gold)}
.crumb .sep{color:var(--gold);opacity:.8}
.crumb .current{color:var(--t2)}

/* ---------- 分类 Hero（左对齐窄栏 · 巨大序号） ---------- */
.cat-hero{
  position:relative;padding:72px 0 88px;
  background:
    radial-gradient(1100px 420px at 78% -10%, rgba(86,200,184,.10), transparent 70%),
    radial-gradient(900px 400px at 12% 0%, rgba(232,181,75,.09), transparent 72%),
    var(--ink);
  overflow:hidden;
}
.cat-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:120px;
  background:linear-gradient(to bottom,rgba(16,14,26,0),var(--ink));
  pointer-events:none;
}
.hero-inner{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;
  gap:48px;align-items:end;position:relative;z-index:2;
}
.hero-rule{width:64px;height:1px;background:var(--gold);margin:28px 0 24px}
.hero-copy{max-width:640px}
.hero-copy h1{
  font-family:var(--serif);
  font-size:clamp(2.2rem,4.2vw,3.4rem);
  line-height:1.12;font-weight:600;letter-spacing:-.01em;
  margin:20px 0 0;
}
.hero-copy .lead{
  margin-top:20px;font-size:17px;line-height:1.85;color:var(--t2);max-width:560px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.hero-index{
  font-family:var(--serif);
  font-size:clamp(6rem,13vw,11rem);
  line-height:.82;font-weight:600;
  color:rgba(232,181,75,.16);
  text-align:right;
  letter-spacing:-.04em;
  user-select:none;
}
.hero-meta{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:1px;margin-top:64px;background:var(--line);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.hero-meta li{
  background:var(--ink);padding:24px 28px;
}
.hero-meta b{
  display:block;font-family:var(--serif);font-size:24px;font-weight:600;
  color:var(--gold);font-variant-numeric:tabular-nums;
}
.hero-meta span{display:block;margin-top:6px;font-size:13px;letter-spacing:.02em;color:var(--t3)}

/* ---------- 通用板块标题 ---------- */
.section-head{max-width:720px;margin-bottom:48px}
.section-head h2{
  font-family:var(--serif);
  font-size:clamp(1.7rem,3vw,2.4rem);
  line-height:1.2;font-weight:600;letter-spacing:-.01em;margin-top:16px;
}
.section-head p{margin-top:16px;color:var(--t2);font-size:16px;line-height:1.85}
.section--paper .section-head p{color:var(--p2)}

/* ---------- 权益概览 ---------- */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:64px;align-items:center}
.check-list li{
  display:flex;gap:14px;align-items:flex-start;
  padding:16px 0;border-bottom:1px solid var(--line);
  font-size:16px;color:var(--t1);line-height:1.7;
}
.check-list li:first-child{padding-top:0}
.check-list .tick{
  flex:0 0 20px;width:20px;height:20px;margin-top:4px;border-radius:50%;
  border:1px solid rgba(86,200,184,.55);display:inline-flex;align-items:center;justify-content:center;
}
.check-list .tick svg{width:11px;height:11px;stroke:var(--aurora);fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.check-list small{display:block;color:var(--t3);font-size:13px;letter-spacing:.02em;margin-top:4px}
.figure-card{
  border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;background:var(--ink-2);
}
.figure-card img{width:100%;border-radius:0;aspect-ratio:4/3}
.figure-card figcaption{
  padding:16px 20px;font-size:13px;color:var(--t3);letter-spacing:.02em;
  border-top:1px solid var(--line);
}

/* ---------- 纵向时间线 ---------- */
.timeline{position:relative;margin-top:8px}
.timeline::before{
  content:"";position:absolute;left:20px;top:10px;bottom:26px;
  border-left:1px dashed var(--line-2);
}
.tl-item{position:relative;padding:0 0 48px 64px}
.tl-item:last-child{padding-bottom:0}
.tl-node{
  position:absolute;left:12px;top:4px;width:18px;height:18px;border-radius:50%;
  border:2px solid var(--gold);background:var(--ink);
  display:flex;align-items:center;justify-content:center;
}
.tl-node::after{content:"";width:6px;height:6px;border-radius:50%;background:var(--gold)}
.tl-num{
  font-family:var(--serif);font-size:28px;font-weight:600;color:var(--gold);
  font-variant-numeric:tabular-nums;line-height:1;letter-spacing:.02em;
}
.tl-item h3{margin-top:10px;font-size:17px;font-weight:600;color:var(--t1);font-family:var(--sans)}
.tl-item p{margin-top:10px;font-size:14px;color:var(--t2);line-height:1.8;max-width:640px}
.tl-tag{
  display:inline-block;margin-top:12px;font-size:12px;letter-spacing:.04em;
  color:var(--aurora);border:1px solid rgba(86,200,184,.4);border-radius:999px;padding:2px 10px;
}

/* ---------- 规格表 ---------- */
.spec-wrap{border-top:1px solid var(--line-paper);margin-top:8px}
table.spec{width:100%;border-collapse:collapse;font-size:15px}
table.spec caption{
  text-align:left;font-size:13px;letter-spacing:.02em;color:var(--p3);padding-bottom:16px;
}
table.spec th,table.spec td{
  text-align:left;padding:18px 20px 18px 0;border-bottom:1px solid var(--line-paper);
  vertical-align:top;line-height:1.7;
}
table.spec th{
  font-size:13px;letter-spacing:.08em;color:var(--p3);font-weight:600;
  text-transform:none;white-space:nowrap;
}
table.spec td:first-child{color:var(--p1);font-weight:600;white-space:nowrap;width:180px}
table.spec td.cell{color:var(--p2)}
table.spec td.cell b{color:var(--p1);font-family:var(--serif);font-variant-numeric:tabular-nums}
.spec-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}

/* ---------- 提示卡 ---------- */
.note-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:8px}
.note-card{
  border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;background:var(--ink-2);
  transition:background .18s var(--ease),transform .18s var(--ease);
}
.note-card:hover{background:var(--ink-2h);transform:translateY(-3px)}
.note-card h3{font-size:17px;font-weight:600;display:flex;align-items:center;gap:10px}
.note-card h3 .dot{width:8px;height:8px;border-radius:50%;background:var(--aurora);flex:0 0 8px}
.note-card p{margin-top:12px;font-size:14px;color:var(--t2);line-height:1.8}

/* ---------- 交叉链接卡 ---------- */
.cross{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.cross a{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  border:1px solid var(--line);border-left:2px solid transparent;border-radius:var(--r-card);
  padding:26px 28px;background:var(--ink-2);
  transition:background .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.cross a:hover{background:var(--ink-2h);border-left-color:var(--gold);transform:translateY(-2px);color:var(--t1)}
.cross strong{display:block;font-family:var(--serif);font-size:18px;font-weight:600}
.cross span{display:block;margin-top:8px;font-size:13px;color:var(--t3);letter-spacing:.02em}
.cross .arrow{color:var(--gold);font-size:20px;transition:transform .18s var(--ease)}
.cross a:hover .arrow{transform:translateX(3px)}

/* ---------- 表单区 ---------- */
.consult{
  position:relative;background:var(--ink-3);border-top:1px solid var(--line);
  padding:88px 0;overflow:hidden;
}
.consult::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.10) 1px, transparent 1px);
  background-size:64px 64px;opacity:.5;pointer-events:none;
}
.consult-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:64px}
.consult-copy h2{font-family:var(--serif);font-size:clamp(1.6rem,2.6vw,2.1rem);line-height:1.22;font-weight:600}
.consult-copy p{margin-top:18px;color:var(--t2);font-size:15px;line-height:1.85;max-width:420px}
.consult-list{margin-top:26px;display:grid;gap:12px}
.consult-list li{display:flex;gap:10px;font-size:14px;color:var(--t2)}
.consult-list li i{color:var(--gold);font-style:normal}
.form-card{
  border:1px solid var(--line-2);border-radius:var(--r-card);
  padding:32px;background:rgba(28,23,48,.6);
}
.form-row{display:grid;gap:18px;grid-template-columns:repeat(2,minmax(0,1fr))}
.field{display:grid;gap:8px;margin-bottom:18px}
.field label{font-size:13px;letter-spacing:.02em;color:var(--t2)}
.field input,.field textarea,.field select{
  width:100%;height:48px;padding:0 14px;border-radius:var(--r-input);
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.14);
  color:var(--t1);transition:border-color .18s var(--ease),background .18s var(--ease);
}
.field textarea{height:112px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--t3)}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--gold);background:rgba(255,255,255,.06);
}
.field.has-error input,.field.has-error textarea{border-color:var(--err)}
.field .hint{font-size:13px;color:var(--t3);letter-spacing:.02em}
.field .error-text{font-size:13px;color:var(--err);display:none}
.field.has-error .error-text{display:block}
.form-foot{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:24px}
.form-status{font-size:13px;color:var(--aurora);min-height:20px}
.form-status.is-warn{color:var(--warn)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-3);border-top:1px solid var(--line);padding:72px 0 32px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer-brand p{margin-top:18px;font-size:14px;color:var(--t2);line-height:1.85;max-width:320px}
.footer-col h4{
  font-size:13px;letter-spacing:.08em;color:var(--gold);font-weight:600;margin-bottom:18px;
}
.footer-col li{margin-bottom:12px}
.footer-col a{font-size:14px;color:var(--t2);transition:color .18s var(--ease)}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.footer-bottom{
  margin-top:56px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--t3);letter-spacing:.02em;
}

/* ---------- 移动端底部 Tab ---------- */
.tabbar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:120;
  background:var(--ink-3);border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
}
.tabbar ul{display:grid;grid-template-columns:repeat(4,1fr)}
.tabbar a{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  height:56px;font-size:12px;color:var(--t3);letter-spacing:.02em;
}
.tabbar svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.tabbar a.is-active{color:var(--gold)}
.tabbar a.is-active::before{
  content:"";position:absolute;top:0;left:22%;right:22%;height:2px;background:var(--gold);border-radius:2px;
}

/* ---------- 进入动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .48s var(--ease),transform .48s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- 断点 ---------- */
@media (max-width:1024px){
  :root{--pad-section:72px}
  .main-nav{display:none}
  .header-cta{display:none}
  .nav-toggle{display:inline-flex}
  .hero-inner{grid-template-columns:minmax(0,1fr)}
  .hero-index{text-align:left;font-size:clamp(5rem,18vw,8rem)}
  .split{grid-template-columns:minmax(0,1fr);gap:40px}
  .consult-inner{grid-template-columns:minmax(0,1fr);gap:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .hero-meta{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:768px){
  :root{--pad-section:56px}
  body{padding-bottom:72px}
  .container{padding:0 24px}
  .tabbar{display:block}
  .cat-hero{padding:48px 0 64px}
  .hero-meta{grid-template-columns:minmax(0,1fr);margin-top:48px}
  .hero-meta li{padding:20px 22px}
  .note-grid,.cross{grid-template-columns:minmax(0,1fr)}
  .form-row{grid-template-columns:minmax(0,1fr)}
  .form-card{padding:24px}
  .consult{padding:64px 0}
  .section-head{margin-bottom:32px}
  table.spec td:first-child{width:120px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  .container{padding:0 20px}
  .brand{font-size:16px}
  .hero-actions .btn{flex:1 1 100%}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .figure-card img{aspect-ratio:16/10}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category3 */
:root{
  --ink:#100E1A;
  --ink-2:#1C1730;
  --ink-3:#0C0A14;
  --paper:#F6F2EA;
  --paper-2:#EAE4D7;
  --gold:#E8B54B;
  --gold-2:#F3C666;
  --aurora:#56C8B8;
  --t1:rgba(255,255,255,.94);
  --t2:rgba(255,255,255,.66);
  --t3:rgba(255,255,255,.42);
  --p1:#1A1630;
  --p2:#4C4760;
  --p3:#7C7790;
  --err:#E06B5A;
  --warn:#D9A441;
  --ok:#56C8B8;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.14);
  --r-card:14px;
  --r-btn:8px;
  --r-img:12px;
  --r-pill:999px;
  --f-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --f-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
  --pad:32px;
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink);
  color:var(--t1);
  font-family:var(--f-sans);
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:.005em;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img);
  aspect-ratio:16/9;object-fit:cover;background:var(--ink-2)}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{
  outline:2px solid var(--gold);outline-offset:2px;border-radius:4px
}
button{font-family:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:600}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
table{border-collapse:collapse;width:100%}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--pad)}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  height:72px;display:flex;align-items:center;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .25s var(--ease),border-color .25s var(--ease)
}
.site-header.is-scrolled{background:var(--ink-3);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;gap:24px;width:100%}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--f-serif);font-size:18px;font-weight:600;
  letter-spacing:.01em;color:var(--t1);white-space:nowrap
}
.brand-mark{
  width:16px;height:16px;flex:none;background:var(--gold);
  clip-path:polygon(50% 0,61% 35%,98% 35%,68% 57%,79% 91%,50% 70%,21% 91%,32% 57%,2% 35%,39% 35%);
  transition:transform .4s var(--ease)
}
.brand:hover .brand-mark{transform:rotate(72deg) scale(1.08)}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:auto}
.main-nav a{
  position:relative;font-size:15px;letter-spacing:.01em;color:var(--t2);
  padding:6px 0
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--gold);transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease)
}
.main-nav a:hover{color:var(--t1)}
.main-nav a:hover::after,.main-nav a.is-active::after{transform:scaleX(1)}
.main-nav a.is-active{color:var(--t1)}
.header-cta{margin-left:4px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;background:none;color:var(--t1);
  transition:transform .18s var(--ease),background .18s var(--ease),
    border-color .18s var(--ease),color .18s var(--ease),box-shadow .18s var(--ease)
}
.btn .arw{transition:transform .18s var(--ease)}
.btn:hover .arw{transform:translateX(3px)}
.btn:active{transform:translateY(1px)}
.btn--gold{background:var(--gold);color:var(--ink)}
.btn--gold:hover{background:var(--gold-2);transform:translateY(-2px)}
.btn--ghost{border-color:var(--line-2);color:var(--t1)}
.btn--ghost:hover{border-color:var(--gold);color:var(--gold-2);transform:translateY(-2px)}
.btn--sm{height:40px;padding:0 18px;font-size:14px}
.btn--block{width:100%}
.btn:disabled,.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none}

/* ---------- hero ---------- */
.cat-hero{
  position:relative;padding:172px 0 84px;text-align:center;
  background:
    radial-gradient(900px 420px at 50% -10%,rgba(232,181,75,.13),transparent 62%),
    radial-gradient(700px 380px at 82% 18%,rgba(86,200,184,.08),transparent 60%),
    var(--ink);
  overflow:hidden
}
.cat-hero::after{
  content:"";position:absolute;inset:auto 0 0 0;height:180px;
  background:linear-gradient(180deg,transparent,var(--ink));pointer-events:none
}
.deco-line{
  width:64px;height:1px;background:linear-gradient(90deg,transparent,var(--gold),transparent);
  margin:0 auto 22px
}
.eyebrow{
  display:inline-block;font-size:13px;letter-spacing:.16em;color:var(--gold);
  text-transform:uppercase;margin-bottom:18px
}
.cat-hero h1{
  font-family:var(--f-serif);
  font-size:clamp(2.1rem,5vw,3.6rem);
  line-height:1.12;letter-spacing:-.01em;margin:0 auto;
  max-width:900px
}
.cat-hero h1 .sep{color:var(--gold);padding:0 6px}
.hero-sub{
  margin:22px auto 0;max-width:660px;font-size:17px;color:var(--t2)
}
.hero-actions{
  display:flex;justify-content:center;gap:12px;margin-top:34px;flex-wrap:wrap
}
.crumb{
  display:flex;justify-content:center;gap:10px;align-items:center;
  font-size:12px;color:var(--t3);margin-bottom:26px;flex-wrap:wrap
}
.crumb a:hover{color:var(--gold-2)}
.crumb span.dot{color:var(--gold)}
.hero-metrics{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:1px;margin-top:56px;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;background:var(--line);max-width:840px;margin-left:auto;margin-right:auto
}
.hero-metrics div{
  background:var(--ink-2);padding:24px 18px;text-align:center
}
.hero-metrics b{
  display:block;font-family:var(--f-serif);font-size:28px;color:var(--gold);
  font-weight:600;line-height:1.2
}
.hero-metrics small{font-size:13px;color:var(--t3);letter-spacing:.02em}

/* ---------- sections ---------- */
.section{padding:var(--sec) 0;position:relative}
.section--tight{padding:64px 0}
.section--paper{background:var(--paper);color:var(--p1)}
.section--paper .sec-desc{color:var(--p2)}
.section--ink2{background:var(--ink-2)}
.sec-head{max-width:720px;margin-bottom:48px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-tag{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;
  border:1px solid rgba(86,200,184,.5);border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.08em;color:var(--aurora);margin-bottom:16px
}
.section--paper .sec-tag{border-color:rgba(26,22,48,.18);color:#1E7A6E}
.sec-head h2{
  font-family:var(--f-serif);font-size:clamp(1.7rem,3vw,2.4rem);
  line-height:1.2;letter-spacing:-.005em
}
.sec-desc{margin-top:16px;font-size:16px;color:var(--t2)}

/* ---------- table ---------- */
.table-wrap{
  border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;background:var(--ink-2)
}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
table.grid-table{min-width:760px}
.grid-table thead th{
  text-align:left;font-size:13px;letter-spacing:.08em;color:var(--gold);
  font-weight:600;padding:18px 22px;border-bottom:1px solid var(--line-2);
  white-space:nowrap;background:rgba(255,255,255,.02)
}
.grid-table td{
  padding:20px 22px;font-size:15px;color:var(--t2);
  border-bottom:1px solid var(--line);vertical-align:top
}
.grid-table tbody tr:last-child td{border-bottom:none}
.grid-table td strong{color:var(--t1);font-weight:600;display:block;margin-bottom:4px;font-size:15.5px}
.grid-table tbody tr:hover td{background:rgba(232,181,75,.04)}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;
  border-radius:var(--r-pill);font-size:12px;letter-spacing:.04em;
  border:1px solid var(--line-2);color:var(--t2);white-space:nowrap
}
.tag--gold{border-color:rgba(232,181,75,.55);color:var(--gold)}
.tag--aurora{border-color:rgba(86,200,184,.5);color:var(--aurora)}
.tag--err{border-color:rgba(224,107,90,.55);color:var(--err)}
.tag--warn{border-color:rgba(217,164,65,.55);color:var(--warn)}

/* ---------- point cards 2x2 ---------- */
.point-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.point-card{
  background:var(--ink-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px;position:relative;overflow:hidden;
  transition:border-color .22s var(--ease),transform .22s var(--ease),background .22s var(--ease)
}
.point-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--gold);
  transform:scaleY(0);transform-origin:top;transition:transform .28s var(--ease)
}
.point-card:hover{transform:translateY(-3px);border-color:var(--line-2);background:#221B3A}
.point-card:hover::before{transform:scaleY(1)}
.point-card .pc-index{
  font-family:var(--f-serif);font-size:15px;color:var(--gold);letter-spacing:.06em;
  display:block;margin-bottom:14px
}
.point-card h3{font-size:18px;font-family:var(--f-sans);font-weight:600;margin-bottom:12px}
.point-card p{font-size:15px;color:var(--t2);line-height:1.8}
.point-card ul{margin-top:16px;display:grid;gap:10px}
.point-card ul li{
  font-size:14px;color:var(--t2);display:flex;gap:10px;align-items:flex-start;line-height:1.7
}
.tick{
  width:16px;height:16px;flex:none;margin-top:5px;position:relative
}
.tick::before{
  content:"";position:absolute;left:5px;top:1px;width:5px;height:9px;
  border-right:2px solid var(--aurora);border-bottom:2px solid var(--aurora);
  transform:rotate(42deg)
}
.cross::before{
  content:"";position:absolute;left:3px;top:7px;width:10px;height:2px;
  background:var(--t3);transform:rotate(45deg)
}
.cross::after{
  content:"";position:absolute;left:3px;top:7px;width:10px;height:2px;
  background:var(--t3);transform:rotate(-45deg)
}

/* ---------- split feature ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.split.rev{direction:rtl}
.split.rev>*{direction:ltr}
.split-media{position:relative}
.split-media img{border-radius:var(--r-img);box-shadow:0 20px 40px rgba(0,0,0,.35)}
.split-media::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-img);
  border:1px solid rgba(255,255,255,.10);pointer-events:none
}
.split-body h2{
  font-family:var(--f-serif);font-size:clamp(1.6rem,2.6vw,2.2rem);
  line-height:1.22;margin-bottom:18px
}
.split-body p{font-size:16px;color:var(--t2)}
.step-list{margin-top:28px;display:grid;gap:0}
.step-list li{
  display:grid;grid-template-columns:44px 1fr;gap:16px;
  padding:18px 0;border-top:1px solid var(--line)
}
.step-list li:last-child{border-bottom:1px solid var(--line)}
.step-no{
  font-family:var(--f-serif);font-size:22px;color:var(--gold);line-height:1.1;
  font-variant-numeric:tabular-nums
}
.step-list h4{font-size:16px;font-weight:600;margin-bottom:6px;font-family:var(--f-sans)}
.step-list p{font-size:14px;color:var(--t3)}

/* ---------- faq ---------- */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.faq-side{position:sticky;top:104px}
.faq-side h2{
  font-family:var(--f-serif);font-size:clamp(1.6rem,2.6vw,2.2rem);
  line-height:1.22;margin-bottom:16px
}
.faq-side p{font-size:15px;color:var(--t2)}
.faq-side .faq-contact{
  margin-top:24px;display:inline-flex;align-items:center;gap:8px;
  font-size:14px;color:var(--gold)
}
.faq-side .faq-contact:hover{color:var(--gold-2);text-decoration:underline;text-underline-offset:4px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;gap:16px;
  padding:22px 0;font-size:17px;font-weight:600;color:var(--t1);
  transition:color .18s var(--ease)
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--gold-2)}
.faq-item summary .qm{
  width:20px;height:20px;flex:none;margin-top:5px;position:relative;
  transition:transform .22s var(--ease)
}
.faq-item summary .qm::before,
.faq-item summary .qm::after{
  content:"";position:absolute;background:var(--gold);border-radius:2px
}
.faq-item summary .qm::before{left:9px;top:2px;width:2px;height:16px}
.faq-item summary .qm::after{left:2px;top:9px;width:16px;height:2px}
.faq-item[open] summary .qm{transform:rotate(45deg)}
.faq-item .faq-a{padding:0 0 24px 36px;font-size:15px;color:var(--t2);line-height:1.85}

/* ---------- cta ---------- */
.cta-band{
  position:relative;min-height:360px;display:flex;align-items:center;
  background:
    radial-gradient(600px 300px at 20% 20%,rgba(232,181,75,.10),transparent 60%),
    radial-gradient(520px 260px at 78% 76%,rgba(86,200,184,.10),transparent 62%),
    var(--ink-3);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  overflow:hidden
}
.cta-band .stars{
  position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:
    radial-gradient(1.5px 1.5px at 12% 26%,rgba(255,255,255,.55),transparent 100%),
    radial-gradient(1.5px 1.5px at 32% 68%,rgba(232,181,75,.6),transparent 100%),
    radial-gradient(1.5px 1.5px at 58% 22%,rgba(255,255,255,.45),transparent 100%),
    radial-gradient(1.5px 1.5px at 76% 58%,rgba(86,200,184,.6),transparent 100%),
    radial-gradient(1.5px 1.5px at 90% 30%,rgba(255,255,255,.4),transparent 100%);
  background-size:600px 340px;animation:breathe 6s ease-in-out infinite
}
@keyframes breathe{0%,100%{opacity:.35}50%{opacity:.7}}
.cta-inner{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:56px;width:100%;align-items:center;padding:72px 0}
.cta-copy h2{
  font-family:var(--f-serif);font-size:clamp(1.7rem,3vw,2.4rem);line-height:1.2;margin-bottom:16px
}
.cta-copy p{font-size:16px;color:var(--t2);max-width:440px}
.cta-actions{display:flex;gap:12px;margin-top:28px;flex-wrap:wrap}
.form-card{
  background:rgba(255,255,255,.03);border:1px solid var(--line-2);
  border-radius:var(--r-card);padding:32px
}
.form-card h3{font-size:18px;font-family:var(--f-sans);margin-bottom:6px}
.form-card .form-tip{font-size:13px;color:var(--t3);margin-bottom:22px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--t2);margin-bottom:8px;letter-spacing:.02em}
.field input,.field select{
  width:100%;height:48px;padding:0 14px;border-radius:var(--r-btn);
  background:rgba(255,255,255,.04);border:1px solid var(--line-2);
  color:var(--t1);font-size:15px;font-family:inherit;
  transition:border-color .18s var(--ease),background .18s var(--ease)
}
.field input::placeholder{color:var(--t3)}
.field input:focus,.field select:focus{outline:none;border-color:var(--gold);background:rgba(255,255,255,.06)}
.field select option{background:var(--ink-2);color:var(--t1)}
.field.is-error input,.field.is-error select{border-color:var(--err)}
.field .msg{font-size:13px;margin-top:7px;color:var(--t3)}
.field.is-error .msg{color:var(--err)}
.field.is-ok .msg{color:var(--ok)}
.form-note{font-size:12.5px;color:var(--t3);margin-top:14px;line-height:1.7}

/* ---------- cross links ---------- */
.cross-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.cross-card{
  display:block;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;background:var(--ink-2);position:relative;
  transition:transform .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease)
}
.cross-card:hover{transform:translateY(-3px);border-color:rgba(232,181,75,.45);background:#221B3A}
.cross-card .cc-kicker{font-size:12px;letter-spacing:.1em;color:var(--aurora);display:block;margin-bottom:12px}
.cross-card h4{font-size:17px;margin-bottom:8px;font-family:var(--f-sans)}
.cross-card p{font-size:14px;color:var(--t2)}
.cross-card .cc-more{margin-top:16px;font-size:14px;color:var(--gold);display:inline-flex;gap:6px;align-items:center}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-3);border-top:1px solid var(--line);padding:72px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--t2);max-width:300px;line-height:1.8}
.footer-col h4{
  font-size:13px;letter-spacing:.08em;color:var(--gold);font-weight:600;margin-bottom:18px
}
.footer-col ul{display:grid;gap:12px}
.footer-col a{
  font-size:14px;color:var(--t2);
  transition:color .18s var(--ease),padding-left .18s var(--ease)
}
.footer-col a:hover{color:#fff;padding-left:4px;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--t3)
}

/* ---------- mobile tab ---------- */
.mobile-tab{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  height:calc(56px + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
  background:var(--ink-3);border-top:1px solid var(--line-2);
  grid-template-columns:repeat(4,1fr)
}
.mobile-tab a{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:12px;color:var(--t3);position:relative
}
.mobile-tab a svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.6}
.mobile-tab a.is-active{color:var(--gold)}
.mobile-tab a.is-active::before{
  content:"";position:absolute;top:0;left:22%;right:22%;height:2px;background:var(--gold)
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .48s var(--ease),transform .48s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

@media (max-width:1024px){
  :root{--pad:24px;--sec:72px}
  .main-nav{gap:18px}
  .main-nav a{font-size:14px}
  .split{grid-template-columns:1fr;gap:36px}
  .split.rev{direction:ltr}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .faq-side{position:static}
  .cta-inner{grid-template-columns:1fr;gap:40px;padding:64px 0}
  .cross-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  body{font-size:16px}
  .header-inner{gap:12px}
  .main-nav{display:none}
  .brand{font-size:16px}
  .cat-hero{padding:132px 0 64px}
  .hero-metrics{grid-template-columns:1fr;max-width:420px}
  .hero-metrics div{display:flex;justify-content:space-between;align-items:baseline;text-align:left;padding:18px 20px}
  .hero-metrics b{font-size:24px}
  .point-grid{grid-template-columns:1fr}
  .cross-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .mobile-tab{display:grid}
  body{padding-bottom:72px}
}
@media (max-width:480px){
  :root{--pad:20px;--sec:56px}
  .cat-hero h1{font-size:1.9rem}
  .hero-sub{font-size:15.5px}
  .hero-actions .btn{width:100%}
  .point-card{padding:24px}
  .form-card{padding:24px}
  .btn{height:46px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}