/* roulang page: index */
:root{
  --paper:#F6F3EC;
  --surface:#FFFFFF;
  --surface-2:#EEF3F5;
  --line:#E5DFD3;
  --line-strong:#D3CBB9;
  --ink:#14202A;
  --ink-2:#4C5C68;
  --ink-3:#8A969F;
  --brand:#24506B;
  --brand-deep:#16394D;
  --brand-tint:#E7EEF2;
  --accent:#B4522A;
  --accent-hover:#9C4423;
  --accent-2:#D9A441;
  --danger:#B3261E;
  --radius-s:10px;
  --radius-m:14px;
  --radius-l:16px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(20,32,42,.06), 0 10px 24px -14px rgba(20,32,42,.18);
  --shadow-2:0 2px 4px rgba(20,32,42,.06), 0 22px 40px -20px rgba(20,32,42,.24);
  --sp-1:8px; --sp-2:12px; --sp-3:16px; --sp-4:24px; --sp-5:32px; --sp-6:48px; --sp-7:72px; --sp-8:96px;
  --font-base:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  padding-bottom:88px;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-base);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,h6,p,ul,ol,figure,blockquote{margin:0;padding:0;}
h1,h2,h3,h4,h5,h6{font-family:var(--font-base);font-weight:700;color:var(--ink);line-height:1.28;letter-spacing:-.01em;}
ul,ol{list-style:none;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--accent);}
img{max-width:100%;display:block;border:0;}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;}
figure{margin:0;}
.num,.stat-num,.news-meta,.meta-line{font-variant-numeric:tabular-nums;}

/* ---------- 布局 ---------- */
.grid-container.site-container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;}
.grid-x.grid-padding-x{margin-left:-15px;margin-right:-15px;}
.grid-padding-x > .cell{padding-left:15px;padding-right:15px;}
.section{padding-top:var(--sp-8);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:var(--sp-4);flex-wrap:wrap;margin-bottom:var(--sp-5);}
.eyebrow{display:inline-block;font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--accent);margin-bottom:10px;}
.section-title{font-size:30px;letter-spacing:-.015em;}
.section-desc{font-size:14px;color:var(--ink-2);max-width:48em;margin-top:10px;}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;padding:14px 0;background:var(--paper);transition:padding .2s ease;}
.site-header.is-scrolled{padding:8px 0;}
.nav-panel{
  position:relative;
  display:flex;
  align-items:center;
  gap:var(--sp-3);
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  box-shadow:var(--shadow-1);
  padding:10px 14px;
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled .nav-panel{box-shadow:var(--shadow-2);}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;color:var(--ink);}
.logo:hover{color:var(--ink);}
.logo-mark{
  width:20px;height:20px;flex-shrink:0;border-radius:4px;
  background:repeating-linear-gradient(135deg,var(--brand-deep) 0 4px,var(--brand) 4px 8px);
  position:relative;
}
.logo-mark::after{content:"";position:absolute;right:-3px;top:50%;transform:translateY(-50%);width:6px;height:6px;border-radius:50%;background:var(--accent-2);}
.logo-text{display:block;font-size:16px;font-weight:700;letter-spacing:-.01em;line-height:1.2;}
.logo-sub{display:block;font-size:11px;color:var(--ink-3);letter-spacing:.02em;line-height:1.4;margin-top:2px;}
.nav-cards{display:flex;align-items:center;gap:2px;flex:1;justify-content:center;}
.nav-card{
  position:relative;height:44px;display:flex;align-items:center;
  padding:0 12px;border-radius:var(--radius-s);
  font-size:14px;color:var(--ink-2);white-space:nowrap;
  transition:background .18s ease,color .18s ease;
}
.nav-card:hover{background:var(--brand-tint);color:var(--brand-deep);}
.nav-card.is-active{background:var(--brand-tint);color:var(--ink);font-weight:600;}
.nav-card.is-active::before{content:"";position:absolute;left:4px;top:12px;bottom:12px;width:3px;border-radius:2px;background:var(--brand);}
.nav-card.is-active{padding-left:14px;}
.nav-cta{
  flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;
  height:44px;padding:0 20px;border-radius:var(--radius-pill);
  background:var(--brand-deep);color:#fff;font-size:14px;font-weight:600;
  transition:background .18s ease,transform .18s ease;
}
.nav-cta:hover{background:var(--accent);color:#fff;transform:translateY(-1px);}
.nav-toggle{
  display:none;height:40px;padding:0 14px;border-radius:var(--radius-s);
  border:1px solid var(--line-strong);background:var(--surface);color:var(--ink);
  font-size:14px;font-weight:600;align-items:center;gap:8px;margin-left:auto;
}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;
}

/* ---------- 首屏 ---------- */
.hero{padding-top:var(--sp-6);}
.hero-copy{padding-right:var(--sp-4);}
.hero-title{
  font-size:clamp(32px,4.3vw,50px);
  line-height:1.16;
  letter-spacing:-.02em;
  font-weight:700;
  margin-bottom:20px;
}
.hero-sub{font-size:18px;line-height:1.75;color:var(--ink-2);max-width:34em;}
.fact-line{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:20px;font-size:12px;color:var(--ink-3);}
.fact-line span.num{color:var(--ink-2);font-weight:600;}
.fact-dot{width:3px;height:3px;border-radius:50%;background:var(--line-strong);}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:28px;}
.hero-note{font-size:12px;color:var(--ink-3);margin-top:14px;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-s);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--accent);color:#fff;}
.btn-primary:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-1);}
.btn-outline{background:var(--surface);border:1.5px solid var(--brand);color:var(--brand-deep);}
.btn-outline:hover{background:var(--brand-tint);color:var(--brand-deep);transform:translateY(-1px);}
.btn-ghost{height:40px;font-size:14px;background:var(--surface);border:1px solid var(--line);color:var(--ink);}
.btn-ghost:hover{border-color:var(--line-strong);background:var(--surface-2);color:var(--brand-deep);}
.btn:active{transform:translateY(0);}

.shelf{position:relative;height:470px;}
.shelf-back{
  position:absolute;left:0;right:0;top:36px;height:240px;
  border-radius:var(--radius-l);
  background-image:linear-gradient(rgba(36,80,107,.08),rgba(36,80,107,.08)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
}
.shelf-card{
  position:absolute;overflow:hidden;border-radius:var(--radius-m);
  border:1px solid var(--line);background:var(--surface);
  box-shadow:var(--shadow-2);
}
.shelf-card img{width:100%;height:100%;object-fit:cover;}
.shelf-card figcaption{
  position:absolute;left:0;right:0;bottom:0;
  background:rgba(20,32,42,.74);color:#fff;
  font-size:12px;line-height:1.4;padding:7px 10px;
}
.shelf-card--1{left:0;top:74px;width:46%;aspect-ratio:3/4;z-index:3;}
.shelf-card--2{left:36%;top:12px;width:40%;aspect-ratio:3/4;z-index:2;}
.shelf-card--3{right:0;top:176px;width:34%;aspect-ratio:3/4;z-index:1;}
.ticket-hole{
  position:absolute;right:10px;top:10px;width:8px;height:8px;border-radius:50%;
  background:var(--surface);border:1px solid var(--line-strong);z-index:4;
}

/* ---------- 卖点三连 ---------- */
.tri-band{
  display:grid;grid-template-columns:repeat(3,1fr);
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-l);box-shadow:var(--shadow-1);overflow:hidden;
}
.tri-item{padding:var(--sp-4) 26px;}
.tri-item + .tri-item{border-left:1px dashed var(--line-strong);}
.tri-no{
  width:44px;height:44px;display:flex;align-items:center;justify-content:center;
  background:var(--brand-tint);color:var(--brand-deep);
  border-radius:var(--radius-s);font-size:20px;font-weight:700;
  font-variant-numeric:tabular-nums;letter-spacing:.02em;
}
.tri-title{font-size:18px;font-weight:600;margin:16px 0 8px;}
.tri-text{font-size:14px;line-height:1.7;color:var(--ink-2);}

/* ---------- 三幕流程 ---------- */
.steps-wrap{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-l);box-shadow:var(--shadow-1);overflow:hidden;
}
.stripes{height:8px;background:repeating-linear-gradient(135deg,var(--ink) 0 8px,var(--surface) 8px 16px);}
.steps-inner{padding:var(--sp-5);}
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--sp-4);}
.step-badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--radius-pill);border:1px solid var(--accent-2);
  background:var(--surface);color:var(--brand-deep);
  font-size:12px;font-weight:600;font-variant-numeric:tabular-nums;
}
.step-figure{aspect-ratio:16/10;border-radius:var(--radius-m);overflow:hidden;margin:14px 0 16px;background:var(--surface-2);}
.step-figure img{width:100%;height:100%;object-fit:cover;}
.step-title{font-size:18px;font-weight:600;margin-bottom:8px;}
.step p{font-size:14px;line-height:1.7;color:var(--ink-2);}
.step-link{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:14px;font-weight:600;color:var(--brand);}
.step-link:hover{color:var(--accent);}
.step-link .arw{transition:transform .18s ease;}
.step-link:hover .arw{transform:translateX(4px);}

/* ---------- 最新发布 ---------- */
.news-grid{row-gap:20px;}
.news-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-l);overflow:hidden;color:inherit;
  box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);color:inherit;}
.news-thumb{position:relative;background:var(--surface-2);overflow:hidden;}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-card--lead .news-thumb{aspect-ratio:4/3;}
.news-card--small .news-thumb{aspect-ratio:16/10;}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-card--lead .news-body{padding:26px;}
.news-title{
  font-size:17px;font-weight:600;line-height:1.45;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card--lead .news-title{font-size:21px;}
.news-summary{
  font-size:14px;line-height:1.7;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-3);}
.news-arrow{margin-left:auto;color:var(--brand);font-size:16px;transition:transform .18s ease;}
.news-card:hover .news-arrow{transform:translateX(4px);}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:6px;background:var(--brand-tint);color:var(--brand);
  font-size:12px;font-weight:600;
}
.news-empty{
  height:160px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  background:#FBF8F2;border:1px dashed var(--line-strong);border-radius:var(--radius-l);
  color:var(--ink-2);font-size:15px;
}

/* ---------- 社会认同 ---------- */
.proof-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:28px;}
.stat-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-m);padding:20px;box-shadow:var(--shadow-1);}
.stat-num{font-size:40px;line-height:1.1;font-weight:700;color:var(--brand-deep);letter-spacing:-.02em;}
.stat-num small{font-size:16px;font-weight:600;margin-left:2px;color:var(--brand);}
.stat-label{font-size:12px;color:var(--ink-3);margin-top:8px;}
.quote-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-bottom:28px;}
.quote-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-l);
  padding:26px;box-shadow:var(--shadow-1);position:relative;
}
.quote-card::before{
  content:"";position:absolute;left:26px;top:24px;width:24px;height:3px;border-radius:2px;background:var(--accent-2);
}
.quote-text{font-size:18px;line-height:1.8;color:var(--ink);margin-top:18px;}
.quote-sign{font-size:13px;color:var(--ink-3);margin-top:14px;}
.partner-wall{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;}
.partner{
  height:40px;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--radius-s);background:var(--surface);
  font-size:13px;color:var(--ink-3);filter:grayscale(1);opacity:.78;
  transition:filter .2s ease,opacity .2s ease,color .2s ease,border-color .2s ease;
}
.partner:hover{filter:none;opacity:1;color:var(--brand);border-color:var(--line-strong);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-m);
  box-shadow:var(--shadow-1);margin-bottom:12px;overflow:hidden;
  transition:box-shadow .18s ease,border-color .18s ease;
}
.faq-item[open]{border-color:var(--line-strong);box-shadow:var(--shadow-2);}
.faq-q{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:16px;
  min-height:60px;padding:12px 22px;font-size:16px;font-weight:600;color:var(--ink);
  position:relative;
}
.faq-q::-webkit-details-marker{display:none;}
.faq-q::after{
  content:"";position:absolute;right:24px;top:50%;
  width:14px;height:2px;background:var(--brand);transform:translateY(-50%);
  transition:transform .2s ease;
}
.faq-q::before{
  content:"";position:absolute;right:29.5px;top:50%;
  width:2px;height:14px;background:var(--brand);transform:translateY(-50%);
  transition:transform .2s ease,opacity .2s ease;
}
.faq-item[open] .faq-q::before{transform:translateY(-50%) rotate(90deg);opacity:0;}
.faq-item[open] .faq-q{color:var(--brand-deep);}
.faq-a{padding:16px 22px;background:var(--paper);font-size:15px;line-height:1.8;color:var(--ink-2);border-top:1px solid var(--line);}

/* ---------- 转化区 ---------- */
.cta-card{
  background:var(--brand-deep);color:#fff;border-radius:var(--radius-l);
  padding:44px;box-shadow:var(--shadow-2);
}
.cta-card .eyebrow{color:var(--accent-2);}
.cta-title{color:#fff;font-size:30px;line-height:1.3;letter-spacing:-.015em;}
.cta-desc{color:rgba(255,255,255,.78);font-size:15px;line-height:1.75;margin-top:14px;max-width:38em;}
.cta-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.cta-point{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;
  border:1px solid rgba(217,164,65,.55);border-radius:var(--radius-pill);
  font-size:12px;color:rgba(255,255,255,.86);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field--full{grid-column:1/-1;}
.field label{font-size:13px;color:rgba(255,255,255,.78);}
.field .req{color:var(--accent-2);margin-left:2px;}
.field input,.field textarea{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-s);
  height:48px;padding:0 14px;font-size:15px;color:var(--ink);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{height:112px;padding:12px 14px;resize:vertical;line-height:1.6;}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 2px rgba(36,80,107,.28);
}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3);}
.form-foot{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:20px;}
.form-tip{font-size:12px;color:rgba(255,255,255,.62);}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:var(--sp-8);background:var(--surface-2);}
.footer-stripes{height:8px;background:repeating-linear-gradient(135deg,var(--ink) 0 8px,var(--surface-2) 8px 16px);}
.footer-top{border-bottom:1px dashed var(--line-strong);padding:56px 0 40px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;}
.footer-brand .logo{margin-bottom:14px;}
.footer-brand p{font-size:14px;line-height:1.75;color:var(--ink-2);max-width:24em;}
.footer-col h3{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:16px;}
.footer-col li{margin-bottom:10px;}
.footer-col a,.footer-col span{font-size:14px;color:var(--ink-2);}
.footer-col a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px;}
.footer-bottom{padding:20px 0 28px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--ink-3);}

/* ---------- 固定转化条 ---------- */
.convert-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(255,255,255,.94);
  border-top:1px solid var(--line);
  box-shadow:var(--shadow-2);
}
.convert-inner{display:flex;align-items:center;gap:20px;padding:14px 0;}
.convert-text{font-size:15px;color:var(--ink);font-weight:600;}
.convert-text small{display:block;font-size:12px;color:var(--ink-3);font-weight:400;margin-top:2px;}
.convert-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.convert-close{
  width:32px;height:32px;border-radius:50%;border:1px solid var(--line);
  background:var(--surface);color:var(--ink-3);font-size:16px;line-height:1;
  display:flex;align-items:center;justify-content:center;
}
.convert-close:hover{color:var(--ink);border-color:var(--line-strong);}

/* ---------- 断点 ---------- */
@media (max-width:1023px){
  .section{padding-top:var(--sp-7);}
  .nav-cards{
    position:absolute;left:0;right:0;top:calc(100% + 10px);
    display:none;flex-direction:column;align-items:stretch;gap:4px;
    background:var(--surface);border:1px solid var(--line);
    border-radius:var(--radius-l);box-shadow:var(--shadow-2);
    padding:10px;max-height:70vh;overflow-y:auto;
  }
  .nav-cards.is-open{display:flex;}
  .nav-card{height:46px;padding:0 14px;}
  .nav-card.is-active{padding-left:18px;}
  .nav-toggle{display:inline-flex;}
  .nav-cta{display:none;}
  .hero-copy{padding-right:0;}
  .shelf{height:430px;margin-top:16px;}
  .tri-band{grid-template-columns:1fr;}
  .tri-item + .tri-item{border-left:0;border-top:1px solid var(--line);}
  .steps-grid{grid-template-columns:1fr;gap:0;}
  .step{position:relative;padding:0 0 26px 26px;border-left:2px solid var(--line-strong);margin-left:6px;}
  .step:last-child{padding-bottom:0;border-left-color:transparent;}
  .step::before{
    content:"";position:absolute;left:-7px;top:6px;width:12px;height:12px;border-radius:50%;
    background:var(--surface);border:2px solid var(--brand);
  }
  .step-figure{max-width:420px;}
  .proof-stats{grid-template-columns:repeat(2,1fr);}
  .quote-grid{grid-template-columns:1fr;}
  .partner-wall{grid-template-columns:repeat(3,1fr);}
  .cta-card{padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:639px){
  .grid-container.site-container{padding-left:20px;padding-right:20px;}
  .section{padding-top:var(--sp-6);}
  .section-title{font-size:24px;}
  .hero{padding-top:var(--sp-5);}
  .hero-sub{font-size:16px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn{width:100%;}
  .shelf{height:340px;}
  .shelf-back{top:24px;height:170px;}
  .shelf-card--1{top:56px;}
  .shelf-card--2{top:8px;}
  .shelf-card--3{top:132px;}
  .steps-inner{padding:20px;}
  .proof-stats{grid-template-columns:1fr 1fr;gap:12px;}
  .stat-num{font-size:30px;}
  .partner-wall{grid-template-columns:repeat(2,1fr);}
  .news-card--lead .news-body{padding:20px;}
  .news-card--lead .news-title{font-size:18px;}
  .cta-card{padding:24px;}
  .cta-title{font-size:23px;}
  .form-grid{grid-template-columns:1fr;}
  .form-foot .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .convert-inner{padding:10px 0;gap:12px;}
  .convert-text{font-size:13px;}
  .convert-text small{display:none;}
  .convert-actions .btn{height:40px;padding:0 16px;font-size:14px;}
  body{padding-bottom:76px;}
  .faq-q{font-size:15px;padding:12px 18px;gap:12px;}
  .faq-a{padding:14px 18px;font-size:14px;}
}

/* roulang page: article */
:root{
  --paper:#F6F3EC;
  --paper-2:#EFEAE0;
  --surface:#FFFFFF;
  --surface-2:#EEF3F5;
  --line:#E5DFD3;
  --line-strong:#D3CBB9;
  --ink:#14202A;
  --ink-2:#4C5C68;
  --ink-3:#8A969F;
  --brand:#24506B;
  --brand-deep:#16394D;
  --brand-tint:#E7EEF2;
  --accent:#B4522A;
  --accent-hover:#9C4423;
  --accent-2:#D9A441;
  --danger:#B3261E;
  --radius-s:10px;
  --radius-m:14px;
  --radius-l:16px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(20,32,42,.06),0 10px 24px -14px rgba(20,32,42,.18);
  --shadow-2:0 2px 4px rgba(20,32,42,.06),0 22px 40px -20px rgba(20,32,42,.24);
  --sp-1:8px; --sp-2:12px; --sp-3:16px; --sp-4:24px; --sp-5:32px; --sp-6:48px; --sp-7:72px; --sp-8:96px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  padding-bottom:92px;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:inherit;text-decoration:none;}
p{margin:0 0 1em;}
ul,ol{margin:0 0 1em;padding-left:1.2em;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:-.01em;}
button{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.num,.meta-item,time,.stat-num{font-variant-numeric:tabular-nums;}

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

/* ============ header / nav ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  padding:12px 0 0;
  background:var(--paper);
  transition:padding .2s ease;
}
.site-header.is-scrolled{padding-top:8px;}
.nav-panel{
  display:flex;
  align-items:center;
  gap:16px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  box-shadow:var(--shadow-1);
  padding:10px 14px;
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled .nav-panel{box-shadow:var(--shadow-2);}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;min-width:0;}
.logo-mark{
  width:20px;height:20px;flex:0 0 auto;border-radius:6px;
  background:repeating-linear-gradient(135deg,var(--brand-deep) 0 4px,var(--accent-2) 4px 8px);
  box-shadow:inset 0 0 0 1px rgba(20,32,42,.12);
}
.logo-text{
  display:block;font-size:16px;font-weight:700;letter-spacing:-.01em;color:var(--ink);line-height:1.25;
  white-space:nowrap;
}
.logo-sub{
  display:block;font-size:12px;color:var(--ink-3);line-height:1.35;letter-spacing:.06em;
}
.nav-cards{
  display:flex;flex:1 1 auto;flex-wrap:wrap;justify-content:center;gap:4px;min-width:0;
}
.nav-card{
  display:inline-flex;align-items:center;height:44px;padding:0 12px;
  border-radius:var(--radius-s);
  color:var(--ink-2);font-size:14px;white-space:nowrap;
  transition:background .18s ease,color .18s ease,box-shadow .18s ease;
}
.nav-card:hover{background:var(--brand-tint);color:var(--brand);}
.nav-card.is-active{
  color:var(--brand);font-weight:600;background:var(--brand-tint);
  box-shadow:inset 3px 0 0 0 var(--brand);
}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
  height:44px;padding:0 20px;border-radius:var(--radius-pill);
  background:var(--brand-deep);color:#fff;font-size:14px;font-weight:600;
  transition:background .18s ease,transform .18s ease,box-shadow .18s ease;
}
.nav-cta:hover{background:var(--accent);transform:translateY(-1px);box-shadow:var(--shadow-1);}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  height:40px;padding:0 16px;border-radius:var(--radius-pill);
  border:1px solid var(--line-strong);background:var(--surface);
  color:var(--brand);font-size:14px;font-weight:600;cursor:pointer;
}
.nav-toggle:hover{background:var(--brand-tint);}

/* ============ common bits ============ */
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-3);
  padding:24px 0 0;
}
.crumbs a{color:var(--ink-2);transition:color .16s ease;}
.crumbs a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px;}
.crumbs .sep{color:var(--line-strong);}
.crumbs .current{color:var(--ink);}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:6px;background:var(--brand-tint);color:var(--brand);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-s);
  font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;
  transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--accent);color:#fff;}
.btn-primary:hover{background:var(--accent-hover);transform:translateY(-1px);box-shadow:var(--shadow-1);}
.btn-ghost{background:var(--surface);color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand-tint);transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}

/* ============ article head ============ */
.article-head{padding:32px 0 0;max-width:860px;}
.article-head h1{
  font-size:34px;line-height:1.3;letter-spacing:-.02em;margin:14px 0 0;color:var(--ink);
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:16px;font-size:13px;color:var(--ink-3);
}
.article-meta .dot{color:var(--line-strong);}
.article-meta .src{color:var(--ink-2);}
.cover-figure{
  margin:28px 0 0;border-radius:var(--radius-m);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-1);background:var(--surface-2);
}
.cover-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}

/* ============ article shell ============ */
.article-shell{
  display:grid;
  grid-template-columns:minmax(0,1fr) 280px;
  gap:48px;
  align-items:start;
  padding:40px 0 0;
}
.article-main{min-width:0;}
.article-body{
  max-width:36em;
  font-size:16px;line-height:1.85;color:var(--ink);
}
.article-body p{margin:0 0 1.25em;}
.article-body h2{
  font-size:26px;line-height:1.35;margin:2em 0 .7em;
  padding-left:12px;box-shadow:inset 3px 0 0 0 var(--brand);
}
.article-body h3{font-size:20px;line-height:1.45;margin:1.8em 0 .6em;color:var(--brand-deep);}
.article-body h4{font-size:17px;margin:1.5em 0 .5em;}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:4px;}
.article-body a:hover{color:var(--accent);}
.article-body ul,.article-body ol{padding-left:1.15em;margin:0 0 1.25em;}
.article-body li{margin:.35em 0;}
.article-body ul li::marker{color:var(--accent);}
.article-body ol li::marker{color:var(--brand);font-weight:600;}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;
  background:var(--paper-2);border-left:3px solid var(--accent);
  border-radius:0 var(--radius-s) var(--radius-s) 0;
  color:var(--ink-2);font-size:15px;line-height:1.8;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--radius-m);margin:1.3em 0;max-width:100%;}
.article-body table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:14px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;}
.article-body th{background:var(--brand-tint);color:var(--brand-deep);}
.article-body hr{border:0;border-top:1px dashed var(--line-strong);margin:2em 0;}
.article-body code{
  background:var(--surface-2);border-radius:6px;padding:2px 6px;font-size:.92em;color:var(--brand-deep);
}

.empty-state{
  max-width:36em;padding:48px 32px;text-align:center;
  background:var(--paper-2);border:1px dashed var(--line-strong);border-radius:var(--radius-l);
}
.empty-state h2{font-size:20px;margin-bottom:10px;}
.empty-state p{color:var(--ink-2);font-size:15px;margin-bottom:20px;}

/* ============ aside ============ */
.article-aside{position:sticky;top:96px;display:grid;gap:16px;}
.aside-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-m);
  box-shadow:var(--shadow-1);padding:20px;
  transition:box-shadow .18s ease,transform .18s ease;
}
.aside-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.aside-title{
  font-size:13px;font-weight:600;color:var(--ink-3);letter-spacing:.08em;
  margin:0 0 14px;text-transform:none;
}
.aside-list{list-style:none;margin:0;padding:0;display:grid;gap:2px;}
.aside-list a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  min-height:44px;padding:0 10px;border-radius:var(--radius-s);
  font-size:14px;color:var(--ink-2);
  transition:background .16s ease,color .16s ease;
}
.aside-list a:hover{background:var(--brand-tint);color:var(--brand);}
.aside-list .arrow{color:var(--line-strong);transition:transform .16s ease,color .16s ease;}
.aside-list a:hover .arrow{transform:translateX(4px);color:var(--brand);}
.aside-cta{
  background:var(--brand-tint);border-color:transparent;
}
.aside-cta h3{font-size:16px;margin-bottom:8px;color:var(--brand-deep);}
.aside-cta p{font-size:13px;line-height:1.7;color:var(--ink-2);margin-bottom:14px;}
.aside-cta .btn{width:100%;}

/* ============ related ============ */
.section-block{padding:64px 0 0;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-bottom:24px;
}
.section-head h2{font-size:26px;letter-spacing:-.01em;}
.section-head p{margin:6px 0 0;font-size:14px;color:var(--ink-2);max-width:44em;}
.section-head .link-more{font-size:14px;color:var(--brand);font-weight:600;}
.section-head .link-more:hover{color:var(--accent);}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.post-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-m);
  box-shadow:var(--shadow-1);overflow:hidden;
  transition:box-shadow .18s ease,transform .18s ease;
}
.post-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.post-card .thumb{
  width:100%;aspect-ratio:4/3;object-fit:cover;background:var(--surface-2);
}
.post-card .body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1 1 auto;}
.post-card h3{
  font-size:16px;line-height:1.55;margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card p{
  font-size:14px;line-height:1.7;color:var(--ink-2);margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card .foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums;
}
.post-card .arrow{color:var(--brand);transition:transform .16s ease;}
.post-card:hover .arrow{transform:translateX(4px);}

/* ============ back link ============ */
.back-link{
  display:inline-flex;align-items:center;gap:10px;min-height:44px;
  margin-top:36px;padding:0 20px;border-radius:var(--radius-pill);
  background:var(--surface);border:1px solid var(--line-strong);
  color:var(--brand);font-size:14px;font-weight:600;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.back-link:hover{background:var(--brand-tint);border-color:var(--brand);}
.back-link .arrow{transition:transform .16s ease;}
.back-link:hover .arrow{transform:translateX(4px);}

/* ============ cta block ============ */
.cta-block{padding:64px 0 72px;}
.cta-card{
  position:relative;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-l);
  box-shadow:var(--shadow-2);padding:44px;
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:center;
}
.cta-card::before{
  content:"";position:absolute;left:0;top:0;right:0;height:8px;
  background:repeating-linear-gradient(135deg,var(--ink) 0 12px,var(--surface) 12px 24px);
  opacity:.85;
}
.cta-card h2{font-size:28px;letter-spacing:-.01em;margin-bottom:12px;}
.cta-card p{font-size:15px;line-height:1.8;color:var(--ink-2);margin:0;max-width:52em;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ============ footer ============ */
.site-footer{margin-top:24px;background:var(--surface-2);border-top:1px dashed var(--line-strong);}
.footer-stripes{
  height:8px;
  background:repeating-linear-gradient(135deg,var(--ink) 0 12px,var(--surface-2) 12px 24px);
  opacity:.75;
}
.footer-top{padding:56px 0 40px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}
.footer-col h3{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:14px;}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:2px;}
.footer-col li{font-size:14px;color:var(--ink-2);line-height:1.8;}
.footer-col a{
  display:inline-block;font-size:14px;color:var(--ink-2);padding:5px 0;
  transition:color .16s ease;
}
.footer-col a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px;}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--ink-2);margin:16px 0 0;max-width:32em;}
.footer-brand .logo{margin-bottom:4px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  padding:20px 0 28px;border-top:1px dashed var(--line-strong);
  font-size:13px;color:var(--ink-3);
}

/* ============ sticky convert bar ============ */
.convert-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(255,255,255,.95);
  border-top:1px solid var(--line);
  box-shadow:var(--shadow-2);
}
.convert-inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:72px;padding-top:12px;padding-bottom:12px;
}
.convert-text{font-size:14px;color:var(--ink-2);margin:0;}
.convert-text strong{color:var(--ink);font-weight:600;}
.convert-right{display:flex;align-items:center;gap:12px;}
.convert-close{
  width:32px;height:32px;border-radius:50%;border:1px solid var(--line-strong);
  background:var(--surface);color:var(--ink-3);font-size:16px;line-height:1;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
  transition:color .16s ease,border-color .16s ease;
}
.convert-close:hover{color:var(--accent);border-color:var(--accent);}

/* ============ responsive ============ */
@media (max-width:1023px){
  .nav-panel{flex-wrap:wrap;gap:10px;padding:10px;}
  .logo{flex:1 1 auto;}
  .nav-toggle{display:inline-flex;}
  .nav-cards{
    display:none;order:3;flex:1 0 100%;width:100%;
    grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;
    padding-top:10px;border-top:1px dashed var(--line);
    max-height:70vh;overflow:auto;
  }
  .nav-cards.is-open{display:grid;}
  .nav-card{width:100%;justify-content:flex-start;background:var(--paper);border:1px solid var(--line);}
  .nav-card.is-active{background:var(--brand-tint);}
  .nav-cta{order:2;height:40px;padding:0 16px;}
  .article-shell{grid-template-columns:minmax(0,1fr);gap:32px;}
  .article-aside{position:static;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px;}
  .cta-card{grid-template-columns:minmax(0,1fr);padding:36px;}
  .section-block{padding-top:56px;}
  .cta-block{padding:56px 0 64px;}
}
@media (max-width:767px){
  .article-head h1{font-size:26px;}
  .article-body h2{font-size:22px;}
  .article-body h3{font-size:18px;}
  .section-head h2{font-size:22px;}
  .cta-card h2{font-size:22px;}
}
@media (max-width:639px){
  .grid-container.site-container{padding-left:20px;padding-right:20px;}
  .logo-text{font-size:15px;}
  .nav-cta{display:none;}
  .nav-cards{grid-template-columns:1fr;}
  .article-head{padding-top:24px;}
  .article-head h1{font-size:23px;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:20px;}
  .footer-top{padding:40px 0 28px;}
  .cta-card{padding:28px 20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .convert-inner{min-height:64px;}
  .convert-text{font-size:13px;}
  .convert-text span.long{display:none;}
  .section-block{padding-top:44px;}
  .article-shell{padding-top:28px;}
  .crumb-wrap .current{display:none;}
}

/* roulang page: category1 */
:root{
  --paper:#F6F3EC;
  --surface:#FFFFFF;
  --surface-2:#EEF3F5;
  --line:#E5DFD3;
  --line-strong:#D3CBB9;
  --ink:#14202A;
  --ink-2:#4C5C68;
  --ink-3:#8A969F;
  --brand:#24506B;
  --brand-deep:#16394D;
  --brand-tint:#E7EEF2;
  --accent:#B4522A;
  --accent-hover:#9C4423;
  --accent-2:#D9A441;
  --radius-s:10px;
  --radius-m:14px;
  --radius-l:16px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(20,32,42,.06), 0 10px 24px -14px rgba(20,32,42,.18);
  --shadow-2:0 2px 4px rgba(20,32,42,.06), 0 22px 40px -20px rgba(20,32,42,.24);
  --sp-1:8px;
  --sp-2:12px;
  --sp-3:16px;
  --sp-4:24px;
  --sp-5:32px;
  --sp-6:48px;
  --sp-7:72px;
  --sp-8:96px;
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding-bottom:96px;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-deep);}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
h1,h2,h3,h4{line-height:1.3;letter-spacing:-.01em;font-weight:700;color:var(--ink);}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.site-container{
  width:100%;
  max-width:1200px;
  margin-left:auto;
  margin-right:auto;
  padding-left:24px;
  padding-right:24px;
}
.tnum{font-variant-numeric:tabular-nums;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:70;
  padding:14px 0;
  background:var(--paper);
  transition:box-shadow .2s ease;
}
.nav-panel{
  display:flex;
  align-items:center;
  gap:var(--sp-2);
  padding:10px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  box-shadow:var(--shadow-1);
  transition:box-shadow .2s ease;
}
.site-header.is-stuck .nav-panel{box-shadow:var(--shadow-2);}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  padding:6px 14px 6px 6px;
  border-radius:var(--radius-s);
  color:var(--ink);
  flex:none;
}
.logo:hover{color:var(--ink);}
.logo-mark{
  position:relative;
  width:22px;
  height:22px;
  flex:none;
  border-radius:6px;
  background:var(--brand);
}
.logo-mark::after{
  content:"";
  position:absolute;
  inset:5px 4px;
  border-radius:2px;
  background:repeating-linear-gradient(45deg,#fff 0 3px,transparent 3px 6px);
  opacity:.85;
}
.logo-text{
  display:block;
  font-size:16px;
  font-weight:700;
  letter-spacing:-.01em;
  line-height:1.25;
}
.logo-sub{
  display:block;
  font-size:12px;
  line-height:1.4;
  color:var(--ink-3);
  letter-spacing:.04em;
}
.nav-cards{
  display:flex;
  flex:1;
  flex-wrap:wrap;
  gap:4px;
  min-width:0;
}
.nav-card{
  display:inline-flex;
  align-items:center;
  height:44px;
  padding:0 12px;
  font-size:14px;
  color:var(--ink-2);
  border-radius:var(--radius-s);
  border-left:3px solid transparent;
  white-space:nowrap;
  transition:background .18s ease,color .18s ease;
}
.nav-card:hover{background:var(--brand-tint);color:var(--brand-deep);}
.nav-card.is-active{
  background:var(--brand-tint);
  color:var(--brand-deep);
  font-weight:600;
  border-left-color:var(--brand);
}
.nav-cta{
  display:inline-flex;
  align-items:center;
  height:44px;
  padding:0 20px;
  flex:none;
  font-size:14px;
  font-weight:600;
  color:#fff;
  background:var(--brand-deep);
  border-radius:var(--radius-pill);
  transition:background .18s ease,transform .18s ease;
}
.nav-cta:hover{background:var(--accent);color:#fff;transform:translateY(-1px);}
.nav-toggle{
  display:none;
  align-items:center;
  gap:8px;
  height:40px;
  margin-left:auto;
  padding:0 16px;
  font-size:14px;
  color:var(--brand-deep);
  background:var(--brand-tint);
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
}
.nav-toggle:hover{background:var(--brand);color:#fff;border-color:var(--brand);}

/* ---------- 面包屑 ---------- */
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px;
  padding:28px 0 0;
  font-size:13px;
  color:var(--ink-3);
}
.crumbs a{color:var(--ink-2);}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:var(--line-strong);}
.crumbs .current{color:var(--ink);font-weight:600;}

/* ---------- 分类 Banner ---------- */
.cat-hero{padding:20px 0 0;}
.cat-banner{
  overflow:hidden;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  box-shadow:var(--shadow-1);
}
.banner-copy{padding:36px;}
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  font-size:12px;
  font-weight:600;
  color:var(--brand);
  background:var(--brand-tint);
  border-radius:6px;
  letter-spacing:.02em;
}
.cat-hero h1{
  margin-top:14px;
  font-size:38px;
  line-height:1.2;
  letter-spacing:-.02em;
}
.cat-hero h1 .hl{color:var(--brand-deep);}
.lede{
  margin-top:16px;
  max-width:34em;
  font-size:17px;
  line-height:1.75;
  color:var(--ink-2);
}
.fact-line{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  align-items:center;
  margin-top:20px;
  font-size:12px;
  color:var(--ink-3);
  letter-spacing:.02em;
}
.fact-line .dot{width:3px;height:3px;border-radius:50%;background:var(--line-strong);}
.banner-media{padding:0 0 0;}
.media-ratio{position:relative;overflow:hidden;background:var(--surface-2);}
.ratio-16-10{aspect-ratio:16/10;}
.ratio-4-3{aspect-ratio:4/3;}
.media-ratio img{width:100%;height:100%;object-fit:cover;}

/* ---------- 主体两栏 ---------- */
.cat-body{padding:56px 0 0;}
.cat-layout{
  display:grid;
  grid-template-columns:220px minmax(0,1fr);
  gap:var(--sp-6);
  align-items:start;
}
.cat-index{
  position:sticky;
  top:104px;
  padding:18px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  box-shadow:var(--shadow-1);
}
.cat-index .index-title{
  margin-bottom:12px;
  font-size:12px;
  font-weight:700;
  letter-spacing:.12em;
  color:var(--ink-3);
}
.cat-index a{
  display:flex;
  gap:10px;
  align-items:baseline;
  padding:10px;
  font-size:14px;
  color:var(--ink-2);
  border-radius:var(--radius-s);
  transition:background .18s ease,color .18s ease;
}
.cat-index a .num{
  font-size:12px;
  font-weight:700;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
}
.cat-index a:hover{background:var(--brand-tint);color:var(--brand-deep);}
.cat-index a.is-current{
  background:var(--brand-tint);
  color:var(--brand-deep);
  font-weight:600;
}
.index-note{
  margin-top:14px;
  padding-top:14px;
  border-top:1px dashed var(--line);
  font-size:12px;
  line-height:1.7;
  color:var(--ink-3);
}

/* ---------- 阶段分节 ---------- */
.stage{
  padding:28px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  box-shadow:var(--shadow-1);
  transition:box-shadow .18s ease,transform .18s ease;
  scroll-margin-top:104px;
}
.stage + .stage{margin-top:var(--sp-4);}
.stage:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.stage-head{
  display:flex;
  gap:14px;
  align-items:flex-start;
  margin-bottom:16px;
}
.stage-num{
  flex:none;
  display:grid;
  place-items:center;
  width:44px;
  height:44px;
  font-size:15px;
  font-weight:700;
  color:var(--brand-deep);
  background:var(--brand-tint);
  border-radius:12px;
  font-variant-numeric:tabular-nums;
}
.stage-head h2{font-size:24px;line-height:1.3;}
.stage-meta{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  align-items:center;
  margin-top:6px;
  font-size:13px;
  color:var(--ink-3);
  font-variant-numeric:tabular-nums;
}
.tag{
  display:inline-flex;
  align-items:center;
  height:22px;
  padding:0 9px;
  font-size:12px;
  color:var(--brand);
  background:var(--brand-tint);
  border-radius:var(--radius-pill);
}
.tag.tag-accent{
  color:var(--accent);
  background:transparent;
  border:1px solid var(--accent-2);
}
.stage p{font-size:15.5px;line-height:1.85;color:var(--ink-2);}
.stage p + p{margin-top:14px;}
.points{
  margin-top:18px;
  padding-top:16px;
  border-top:1px dashed var(--line);
  display:grid;
  gap:10px;
}
.points li{
  position:relative;
  padding-left:20px;
  font-size:15px;
  line-height:1.75;
  color:var(--ink-2);
}
.points li::before{
  content:"";
  position:absolute;
  left:2px;
  top:.72em;
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--brand);
}
.stage-figure{
  margin-top:20px;
  border-radius:var(--radius-m);
  overflow:hidden;
  border:1px solid var(--line);
}
.stage-figure figcaption{
  padding:10px 14px;
  font-size:12.5px;
  color:var(--ink-3);
  background:var(--surface-2);
}

/* ---------- CTA 卡 ---------- */
.cta-card{
  margin-top:var(--sp-5);
  padding:32px;
  background:var(--brand-deep);
  border-radius:var(--radius-l);
  box-shadow:var(--shadow-2);
  color:#fff;
}
.cta-card .cta-title{
  font-size:22px;
  font-weight:700;
  line-height:1.4;
  color:#fff;
}
.cta-card p{
  margin-top:10px;
  max-width:38em;
  font-size:14.5px;
  line-height:1.8;
  color:rgba(255,255,255,.78);
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  font-size:15px;
  font-weight:600;
  border-radius:var(--radius-s);
  border:1px solid transparent;
  transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{
  color:#fff;
  background:var(--accent);
  box-shadow:0 8px 18px -10px rgba(180,82,42,.7);
}
.btn-primary:hover{
  background:var(--accent-hover);
  color:#fff;
  transform:translateY(-1px);
}
.btn-ghost{
  color:var(--brand-deep);
  background:transparent;
  border:1.5px solid var(--brand);
}
.btn-ghost:hover{background:var(--brand-tint);color:var(--brand-deep);}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:16px;
  margin-top:24px;
}
.cta-hint{
  margin-top:14px;
  font-size:12px;
  color:rgba(255,255,255,.6);
}
.cta-card .btn-ghost{color:#fff;border-color:rgba(255,255,255,.55);}
.cta-card .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:var(--sp-7);
  background:var(--surface-2);
  border-top:1px dashed var(--line-strong);
}
.footer-stripes{
  height:8px;
  background:repeating-linear-gradient(135deg,var(--ink) 0 8px,transparent 8px 16px);
  opacity:.85;
}
.footer-top{padding:56px 0 32px;}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.15fr;
  gap:var(--sp-5);
}
.footer-col h3{
  margin-bottom:14px;
  font-size:14px;
  font-weight:600;
  color:var(--ink);
}
.footer-col ul{display:grid;gap:10px;}
.footer-col li{font-size:14px;color:var(--ink-2);line-height:1.7;}
.footer-col a{font-size:14px;color:var(--ink-2);}
.footer-col a:hover{
  color:var(--brand);
  text-decoration:underline;
  text-underline-offset:4px;
}
.footer-brand p{
  margin-top:14px;
  max-width:32em;
  font-size:14px;
  line-height:1.8;
  color:var(--ink-2);
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  padding:18px 0 28px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--ink-3);
}

/* ---------- 底部固定转化条 ---------- */
.convert-bar{
  position:fixed;
  left:0;
  right:0;
  bottom:0;
  z-index:90;
  background:rgba(255,255,255,.96);
  border-top:1px solid var(--line);
  box-shadow:var(--shadow-2);
}
.convert-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:64px;
  padding-top:10px;
  padding-bottom:10px;
}
.convert-text{
  font-size:14px;
  color:var(--ink-2);
  margin:0;
}
.convert-actions{display:flex;align-items:center;gap:10px;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:var(--radius-s);}
.convert-close{
  display:grid;
  place-items:center;
  width:32px;
  height:32px;
  font-size:18px;
  line-height:1;
  color:var(--ink-3);
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:50%;
  transition:color .18s ease,border-color .18s ease;
}
.convert-close:hover{color:var(--accent);border-color:var(--accent);}

/* ---------- 断点 ---------- */
@media screen and (max-width:1023px){
  .nav-panel{flex-wrap:wrap;}
  .nav-toggle{display:inline-flex;}
  .nav-cta{display:none;}
  .nav-cards{
    display:none;
    order:3;
    width:100%;
    flex-direction:column;
    flex-wrap:nowrap;
    gap:2px;
    margin-top:8px;
    padding-top:10px;
    max-height:70vh;
    overflow-y:auto;
    border-top:1px dashed var(--line);
  }
  .nav-cards.is-open{display:flex;}
  .nav-card{width:100%;justify-content:flex-start;}
  .cat-hero h1{font-size:32px;}
  .banner-copy{padding:28px 24px;}
  .cat-layout{grid-template-columns:1fr;gap:var(--sp-5);}
  .cat-index{position:static;}
  .cat-index ol{display:flex;flex-wrap:wrap;gap:6px;}
  .cat-index li + li{margin-top:0;}
  .cat-index a{padding:8px 12px;border:1px solid var(--line);}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media screen and (max-width:767px){
  .site-container{padding-left:20px;padding-right:20px;}
  .site-header{padding:10px 0;}
  .cat-hero{padding-top:12px;}
  .cat-hero h1{font-size:26px;line-height:1.3;}
  .lede{font-size:15.5px;}
  .cat-body{padding-top:40px;}
  .stage{padding:22px 18px;}
  .stage-head h2{font-size:20px;}
  .stage-num{width:38px;height:38px;font-size:14px;border-radius:10px;}
  .stage p{font-size:15px;}
  .points li{font-size:14.5px;}
  .cta-card{padding:24px 20px;}
  .cta-card .cta-title{font-size:19px;}
  .cta-actions .btn{width:100%;}
  .footer-top{padding:40px 0 24px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{font-size:12.5px;}
}
@media screen and (max-width:519px){
  .convert-text{display:none;}
  .convert-inner{justify-content:flex-end;min-height:60px;}
  .convert-actions{width:100%;justify-content:space-between;}
  .convert-actions .btn-primary{flex:1;margin-right:10px;}
  .logo-text{font-size:15px;}
  .cat-index ol{display:grid;grid-template-columns:1fr 1fr;}
  .cat-index a{padding:8px 10px;font-size:13px;}
}

/* roulang page: category2 */
:root{
  --paper:#F6F3EC;
  --surface:#FFFFFF;
  --surface-2:#EEF3F5;
  --line:#E5DFD3;
  --line-strong:#D3CBB9;
  --ink:#14202A;
  --ink-2:#4C5C68;
  --ink-3:#8A969F;
  --brand:#24506B;
  --brand-deep:#16394D;
  --brand-tint:#E7EEF2;
  --accent:#B4522A;
  --accent-hover:#9C4423;
  --accent-2:#D9A441;
  --danger:#B3261E;
  --radius-s:10px;
  --radius-m:14px;
  --radius-l:16px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(20,32,42,.06),0 10px 24px -14px rgba(20,32,42,.18);
  --shadow-2:0 2px 4px rgba(20,32,42,.06),0 22px 40px -20px rgba(20,32,42,.24);
  --sp-1:8px;--sp-2:12px;--sp-3:16px;--sp-4:24px;--sp-5:32px;--sp-6:48px;--sp-7:72px;--sp-8:96px;
  --font: "PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
/* reset */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{margin:0;font-family:var(--font);font-size:16px;line-height:1.75;color:var(--ink);background:var(--paper);padding-bottom:88px;-webkit-font-smoothing:antialiased;}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--accent);}
p{margin:0 0 1em;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink);line-height:1.25;letter-spacing:-.01em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;}
figure{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.num{font-variant-numeric:tabular-nums;}
/* layout */
.site-container{max-width:1200px;margin-left:auto;margin-right:auto;padding-left:24px;padding-right:24px;width:100%;}
.section{padding:var(--sp-7) 0;}
.section--tight{padding:var(--sp-6) 0;}
.section-head{max-width:760px;margin-bottom:var(--sp-5);}
.section-head .kicker{display:inline-block;font-size:13px;font-weight:600;color:var(--brand);background:var(--brand-tint);border-radius:var(--radius-pill);padding:4px 12px;margin-bottom:14px;letter-spacing:.02em;}
.section-head h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:12px;}
.section-head p{font-size:16px;line-height:1.8;color:var(--ink-2);margin:0;}
/* header */
.site-header{position:sticky;top:0;z-index:60;padding:12px 0;background:rgba(246,243,236,.94);backdrop-filter:saturate(120%);transition:box-shadow .2s ease;}
.site-header.is-scrolled{box-shadow:0 10px 30px -22px rgba(20,32,42,.5);}
.nav-panel{display:flex;align-items:center;gap:16px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-l);box-shadow:var(--shadow-1);padding:10px 14px;}
.logo{display:flex;align-items:center;gap:10px;color:var(--ink);flex-shrink:0;}
.logo:hover{color:var(--ink);}
.logo-mark{width:20px;height:20px;border:1.5px solid var(--brand);border-radius:5px;flex-shrink:0;background-image:repeating-linear-gradient(45deg,var(--accent-2) 0 3px,transparent 3px 6px);}
.logo-text{display:block;font-size:16px;font-weight:700;letter-spacing:-.01em;line-height:1.2;}
.logo-sub{display:block;font-size:12px;color:var(--ink-3);line-height:1.4;margin-top:2px;font-weight:400;}
.nav-cards{display:flex;align-items:center;gap:4px;flex:1 1 auto;flex-wrap:nowrap;}
.nav-card{position:relative;display:inline-flex;align-items:center;height:44px;padding:0 12px;border-radius:var(--radius-s);font-size:14px;color:var(--ink-2);white-space:nowrap;transition:background .18s ease,color .18s ease;}
.nav-card:hover{background:var(--brand-tint);color:var(--brand);}
.nav-card.is-active{color:var(--brand);font-weight:600;background:var(--brand-tint);}
.nav-card.is-active::before{content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;border-radius:3px;background:var(--brand);}
.nav-cta{flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 18px;border-radius:var(--radius-pill);background:var(--brand-deep);color:#fff;font-size:14px;font-weight:600;transition:background .18s ease,transform .18s ease;}
.nav-cta:hover{background:var(--accent);color:#fff;transform:translateY(-1px);}
.nav-toggle{display:none;margin-left:auto;height:40px;padding:0 16px;border-radius:var(--radius-pill);border:1.5px solid var(--brand);color:var(--brand);font-size:14px;font-weight:600;background:var(--surface);}
/* breadcrumb */
.breadcrumb{padding:22px 0 0;font-size:13px;color:var(--ink-3);}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"/";color:var(--line-strong);}
.breadcrumb a{color:var(--ink-2);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .current{color:var(--ink);}
/* hero */
.page-hero{position:relative;margin-top:20px;background-image:url("/assets/images/backpic/back-2.webp");background-size:cover;background-position:center;border-bottom:1px solid var(--line);}
.page-hero::before{content:"";position:absolute;inset:0;background:rgba(246,243,236,.9);}
.page-hero>.grid-container{position:relative;z-index:1;}
.hero-pad{padding:56px 0 64px;}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;color:var(--accent);border:1px solid rgba(180,82,42,.35);background:rgba(255,255,255,.7);border-radius:var(--radius-pill);padding:5px 14px;margin-bottom:18px;letter-spacing:.02em;}
.hero-pad h1{font-size:clamp(30px,4vw,48px);line-height:1.2;letter-spacing:-.02em;margin-bottom:18px;}
.hero-lead{font-size:17px;line-height:1.8;color:var(--ink-2);max-width:34em;margin:0 0 20px;}
.fact-bar{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:12px;color:var(--ink-2);margin-bottom:26px;}
.fact-bar li{display:flex;align-items:center;gap:10px;font-variant-numeric:tabular-nums;}
.fact-bar li+li::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--line-strong);}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:14px;}
.hero-note{font-size:12px;color:var(--ink-3);margin:0;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--radius-s);font-size:15px;font-weight:600;transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;border:1.5px solid transparent;}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-ghost{background:var(--surface);color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand-tint);color:var(--brand-deep);transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.hero-figure{position:relative;border-radius:var(--radius-l);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-2);background:var(--surface);}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-figure figcaption{position:absolute;left:0;right:0;bottom:0;padding:14px 18px;font-size:12px;color:#fff;background:linear-gradient(to top,rgba(20,32,42,.72),rgba(20,32,42,0));}
/* strip card */
.strip-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-l);box-shadow:var(--shadow-1);display:grid;grid-template-columns:repeat(3,1fr);overflow:hidden;}
.strip-item{padding:26px 24px;position:relative;}
.strip-item+.strip-item{border-left:1px dashed var(--line-strong);}
.strip-num{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:8px;background:var(--brand-tint);color:var(--brand);font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;margin-bottom:14px;}
.strip-item h3{font-size:18px;margin-bottom:8px;}
.strip-item p{font-size:14px;line-height:1.7;color:var(--ink-2);margin:0;}
/* timeline */
.timeline{position:relative;max-width:940px;}
.tl-item{display:grid;grid-template-columns:112px 1fr;gap:24px;padding-bottom:28px;}
.tl-item:last-child{padding-bottom:0;}
.tl-date{font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums;padding-top:6px;text-align:right;letter-spacing:.02em;}
.tl-date strong{display:block;font-size:15px;color:var(--ink-2);font-weight:600;}
.tl-body{position:relative;padding:0 0 4px 26px;border-left:2px solid var(--line-strong);}
.tl-item:last-child .tl-body{border-left-color:transparent;}
.tl-body::before{content:"";position:absolute;left:-8px;top:7px;width:14px;height:14px;border-radius:50%;background:var(--surface);border:2px solid var(--brand);}
.tl-item:last-child .tl-body::before{background:var(--brand);}
.tl-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:8px;}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:6px;background:var(--brand-tint);color:var(--brand);font-size:12px;font-weight:600;font-variant-numeric:tabular-nums;}
.badge--outline{background:transparent;border:1px solid var(--accent-2);color:var(--accent);}
.tl-body h3{font-size:18px;margin-bottom:8px;}
.tl-body p{font-size:15px;line-height:1.75;color:var(--ink-2);margin:0;}
/* people grid */
.person-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-l);box-shadow:var(--shadow-1);overflow:hidden;height:100%;transition:box-shadow .18s ease,transform .18s ease;display:flex;flex-direction:column;}
.person-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.person-media{position:relative;background:var(--surface-2);}
.person-media img{width:100%;aspect-ratio:3/4;object-fit:cover;}
.person-media .ticket{position:absolute;top:12px;right:12px;width:8px;height:8px;border-radius:50%;background:var(--surface);box-shadow:0 0 0 3px rgba(255,255,255,.45);}
.person-body{padding:18px 20px 22px;flex:1 1 auto;display:flex;flex-direction:column;}
.person-body h3{font-size:17px;margin-bottom:6px;}
.person-role{font-size:13px;color:var(--accent);font-weight:600;margin-bottom:10px;}
.person-body p{font-size:14px;line-height:1.7;color:var(--ink-2);margin:0 0 14px;}
.tag-row{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;}
.tag{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--radius-pill);border:1px solid var(--line);background:var(--paper);font-size:12px;color:var(--ink-2);}
/* points */
.point-list{display:grid;gap:16px;}
.point-card{display:grid;grid-template-columns:56px 1fr;gap:18px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-m);box-shadow:var(--shadow-1);padding:22px 24px;transition:box-shadow .18s ease,transform .18s ease;}
.point-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.point-index{font-size:20px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;background:var(--brand-tint);border-radius:var(--radius-s);height:44px;display:flex;align-items:center;justify-content:center;}
.point-card h3{font-size:17px;margin-bottom:8px;}
.point-card p{font-size:15px;line-height:1.75;color:var(--ink-2);margin:0;}
/* faq */
.faq-wrap{max-width:820px;}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-m);box-shadow:var(--shadow-1);margin-bottom:12px;overflow:hidden;}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;min-height:60px;font-size:16px;font-weight:600;color:var(--ink);}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"";flex-shrink:0;width:14px;height:14px;background-image:linear-gradient(var(--brand),var(--brand)),linear-gradient(var(--brand),var(--brand));background-size:14px 2px,2px 14px;background-position:center,center;background-repeat:no-repeat;transition:transform .2s ease;}
.faq-item[open] summary::after{background-size:14px 2px,0 0;transform:rotate(180deg);}
.faq-item[open] summary{color:var(--brand);}
.faq-answer{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--ink-2);background:var(--paper);border-top:1px solid var(--line);padding-top:16px;}
.faq-answer p:last-child{margin-bottom:0;}
/* cta */
.cta-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-l);box-shadow:var(--shadow-2);padding:40px;display:grid;grid-template-columns:1fr 1fr;gap:40px;}
.cta-copy h2{font-size:clamp(22px,2.4vw,28px);margin-bottom:14px;}
.cta-copy p{font-size:15px;line-height:1.8;color:var(--ink-2);}
.cta-list{display:grid;gap:10px;margin-top:20px;}
.cta-list li{display:flex;gap:10px;font-size:14px;color:var(--ink-2);}
.cta-list li::before{content:"";flex-shrink:0;width:6px;height:6px;border-radius:50%;background:var(--accent);margin-top:9px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:6px;}
.field--full{grid-column:1 / -1;}
.field label{font-size:13px;color:var(--ink-2);font-weight:600;}
.field label .req{color:var(--accent);margin-left:2px;}
.field input,.field textarea,.field select{height:48px;border:1px solid var(--line);border-radius:var(--radius-s);background:var(--surface);padding:0 14px;font-size:15px;color:var(--ink);font-family:inherit;transition:border-color .18s ease,box-shadow .18s ease;}
.field textarea{height:104px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 2px rgba(36,80,107,.18);}
.form-hint{font-size:12px;color:var(--ink-3);margin:12px 0 0;grid-column:1 / -1;}
.form-msg{grid-column:1 / -1;font-size:14px;color:var(--brand);background:var(--brand-tint);border-radius:var(--radius-s);padding:10px 14px;display:none;}
.form-msg.is-visible{display:block;}
/* footer */
.site-footer{background:var(--surface-2);border-top:1px dashed var(--line-strong);margin-top:var(--sp-7);}
.footer-stripes{height:8px;background-image:repeating-linear-gradient(45deg,rgba(20,32,42,.85) 0 8px,rgba(255,255,255,.6) 8px 16px);}
.footer-top{padding:56px 0 40px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:32px;}
.footer-col h3{font-size:14px;font-weight:600;margin-bottom:16px;color:var(--ink);}
.footer-col ul{display:grid;gap:10px;}
.footer-col a,.footer-col span{font-size:14px;color:var(--ink-2);}
.footer-col a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px;}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--ink-2);margin:16px 0 0;max-width:30em;}
.footer-bottom{border-top:1px solid var(--line);padding:18px 0 24px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:var(--ink-3);}
/* sticky bar */
.sticky-bar{position:fixed;left:0;right:0;bottom:0;z-index:70;background:rgba(255,255,255,.94);border-top:1px solid var(--line);box-shadow:var(--shadow-2);}
.sticky-inner{display:flex;align-items:center;gap:16px;padding:12px 0;}
.sticky-text{font-size:14px;color:var(--ink-2);flex:1 1 auto;}
.sticky-text strong{color:var(--ink);font-weight:600;}
.sticky-close{flex-shrink:0;width:32px;height:32px;border-radius:50%;border:1px solid var(--line);color:var(--ink-3);font-size:16px;line-height:1;display:inline-flex;align-items:center;justify-content:center;}
.sticky-close:hover{color:var(--ink);border-color:var(--line-strong);}
/* utils */
.mt-4{margin-top:var(--sp-4);}
.mt-5{margin-top:var(--sp-5);}
.text-center{text-align:center;}
.divider-dashed{border:0;border-top:1px dashed var(--line-strong);margin:0;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}
/* breakpoints */
@media (max-width:1023px){
  .nav-toggle{display:inline-flex;align-items:center;}
  .nav-panel{flex-wrap:wrap;row-gap:10px;}
  .nav-cards{display:none;width:100%;flex-direction:column;align-items:stretch;order:5;border-top:1px dashed var(--line-strong);padding-top:10px;max-height:70vh;overflow:auto;}
  .nav-cards.is-open{display:flex;}
  .nav-card{height:46px;}
  .nav-card.is-active::before{top:12px;bottom:12px;}
  .nav-cta{order:4;margin-left:auto;}
  .section{padding:var(--sp-6) 0;}
  .hero-pad{padding:36px 0 44px;}
  .strip-card{grid-template-columns:1fr;}
  .strip-item+.strip-item{border-left:0;border-top:1px dashed var(--line-strong);}
  .cta-card{grid-template-columns:1fr;gap:28px;padding:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  .hero-grid .hero-figure{margin-top:28px;}
  .timeline .tl-item{grid-template-columns:1fr;gap:10px;}
  .tl-date{text-align:left;padding-top:0;display:flex;align-items:center;gap:10px;}
  .tl-body{padding-left:22px;}
  .point-card{grid-template-columns:44px 1fr;gap:14px;padding:18px;}
  .point-index{height:38px;font-size:17px;}
  .form-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:639px){
  .site-container{padding-left:20px;padding-right:20px;}
  .section{padding:var(--sp-5) 0;}
  .logo-text{font-size:15px;}
  .nav-cta{padding:0 14px;font-size:13px;}
  .btn{width:100%;}
  .hero-actions{gap:12px;}
  .page-hero{margin-top:12px;}
  .sticky-inner{padding:10px 0;gap:10px;}
  .sticky-text{font-size:12px;line-height:1.4;}
  .sticky-text .sticky-long{display:none;}
  .sticky-inner .btn{width:auto;flex-shrink:0;}
}

/* roulang page: category3 */
/* ============ 1. 设计变量 ============ */
:root{
  --paper:#F6F3EC;
  --surface:#FFFFFF;
  --surface-2:#EEF3F5;
  --line:#E5DFD3;
  --line-strong:#D3CBB9;
  --ink:#14202A;
  --ink-2:#4C5C68;
  --ink-3:#8A969F;
  --brand:#24506B;
  --brand-deep:#16394D;
  --brand-tint:#E7EEF2;
  --accent:#B4522A;
  --accent-hover:#9C4423;
  --accent-2:#D9A441;
  --radius-s:10px;
  --radius-m:14px;
  --radius-l:16px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(20,32,42,.06),0 10px 24px -14px rgba(20,32,42,.18);
  --shadow-2:0 2px 4px rgba(20,32,42,.06),0 22px 40px -20px rgba(20,32,42,.24);
  --sp-1:8px;--sp-2:12px;--sp-3:16px;--sp-4:24px;--sp-5:32px;--sp-6:48px;--sp-7:72px;--sp-8:96px;
  --font-stack:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}

/* ============ 2. 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-stack);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--paper);
  padding-bottom:88px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,p,figure,blockquote,ul,ol{margin:0;padding:0;}
ul,ol{list-style:none;}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.tnum,.stat-num{font-variant-numeric:tabular-nums;}

/* ============ 3. 布局 ============ */
.site-container{max-width:1200px;margin-left:auto;margin-right:auto;padding-left:24px;padding-right:24px;}
.section{padding-top:72px;}
.section-tight{padding-top:48px;}
.section-head{max-width:46em;margin-bottom:32px;}
.section-head h2{font-size:clamp(24px,2.4vw,32px);line-height:1.28;letter-spacing:-.01em;font-weight:700;color:var(--ink);}
.section-head p{margin-top:12px;font-size:15px;line-height:1.8;color:var(--ink-2);}
.eyebrow{display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;font-size:12px;letter-spacing:.14em;color:var(--ink-3);text-transform:uppercase;}
.eyebrow::before{content:"";width:20px;height:2px;border-radius:2px;background:var(--accent-2);}

/* ============ 4. 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  padding:14px 0 10px;
  background:var(--paper);
  transition:box-shadow .2s ease;
}
.site-header.is-stuck{box-shadow:0 12px 24px -20px rgba(20,32,42,.5);}
.nav-panel{
  display:flex;align-items:center;gap:14px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  box-shadow:var(--shadow-1);
  padding:10px 14px;
  transition:box-shadow .2s ease;
}
.site-header.is-stuck .nav-panel{box-shadow:var(--shadow-2);}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;min-width:0;}
.logo-mark{
  position:relative;flex:0 0 auto;
  width:22px;height:22px;border-radius:6px;
  background:var(--brand);
}
.logo-mark::after{
  content:"";position:absolute;inset:6px;border-radius:2px;
  background:repeating-linear-gradient(-45deg,var(--accent-2) 0 2px,transparent 2px 4px);
}
.logo-text{display:block;font-size:17px;font-weight:700;line-height:1.25;letter-spacing:-.01em;color:var(--ink);white-space:nowrap;}
.logo-sub{display:block;font-size:12px;line-height:1.5;color:var(--ink-3);letter-spacing:.02em;white-space:nowrap;}
.nav-cards{display:flex;align-items:center;justify-content:center;gap:2px;flex:1 1 auto;}
.nav-card{
  position:relative;
  display:inline-flex;align-items:center;
  height:44px;padding:0 12px;border-radius:var(--radius-s);
  font-size:14px;color:var(--ink-2);white-space:nowrap;
  transition:background-color .18s ease,color .18s ease,box-shadow .18s ease;
}
.nav-card:hover{background:var(--brand-tint);color:var(--brand-deep);}
.nav-card:active{background:var(--brand-tint);}
.nav-card.is-active{color:var(--brand-deep);font-weight:600;background:var(--brand-tint);box-shadow:inset 3px 0 0 var(--brand);}
.nav-cta{
  flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  height:44px;padding:0 20px;border-radius:var(--radius-pill);
  background:var(--brand-deep);color:#fff;font-size:14px;font-weight:600;white-space:nowrap;
  transition:background-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.nav-cta:hover{background:var(--accent);transform:translateY(-1px);box-shadow:0 12px 22px -16px rgba(180,82,42,.9);}
.nav-cta:active{transform:translateY(0);}
.nav-toggle{
  display:none;
  align-items:center;justify-content:center;
  height:40px;padding:0 14px;margin-left:auto;
  border:1px solid var(--line-strong);border-radius:var(--radius-pill);
  font-size:13px;color:var(--ink-2);background:var(--surface);
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.nav-toggle:hover{background:var(--brand-tint);color:var(--brand-deep);border-color:var(--brand-tint);}

/* ============ 5. 面包屑 ============ */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding-top:20px;font-size:13px;color:var(--ink-3);}
.breadcrumb a{color:var(--ink-3);transition:color .18s ease;}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--line-strong);}
.breadcrumb .current{color:var(--ink);font-weight:500;}

/* ============ 6. 首屏 ============ */
.page-hero{padding-top:24px;}
.hero-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  box-shadow:var(--shadow-1);
  padding:40px;
  overflow:hidden;
}
.hero-copy h1{
  font-size:clamp(28px,3.5vw,44px);
  line-height:1.22;
  letter-spacing:-.02em;
  font-weight:700;
  color:var(--ink);
}
.hero-lead{margin-top:18px;font-size:17px;line-height:1.8;color:var(--ink-2);max-width:34em;}
.hero-facts{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:22px;font-size:13px;color:var(--ink-3);}
.hero-facts li{display:inline-flex;align-items:center;gap:8px;font-variant-numeric:tabular-nums;}
.hero-facts li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--accent-2);flex:0 0 auto;}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px;}
.hero-media{padding-top:8px;}
.hero-shot{
  width:100%;max-width:300px;margin-left:auto;
  aspect-ratio:4/5;
  border-radius:var(--radius-m);
  overflow:hidden;
  background:var(--surface-2);
  box-shadow:var(--shadow-1);
}
.hero-shot img{width:100%;height:100%;object-fit:cover;}

/* ============ 7. 通用组件 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-s);
  font-size:15px;font-weight:600;line-height:1;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 12px 22px -16px rgba(180,82,42,.95);}
.btn-primary:hover{background:var(--accent-hover);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:var(--surface);color:var(--brand);border:1.5px solid var(--brand);}
.btn-ghost:hover{background:var(--brand-tint);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 9px;
  border-radius:6px;background:var(--brand-tint);color:var(--brand);
  font-size:12px;font-weight:600;letter-spacing:.02em;
  font-variant-numeric:tabular-nums;
}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;
  border-radius:var(--radius-pill);
  background:var(--brand-tint);color:var(--brand-deep);
  font-size:12px;letter-spacing:.02em;
}

/* ============ 8. 场景卡片网格 ============ */
.scene-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--line-strong);}
.scene-thumb{position:relative;aspect-ratio:3/4;background:var(--surface-2);overflow:hidden;}
.scene-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.scene-card:hover .scene-thumb img{transform:scale(1.03);}
.scene-body{display:flex;flex-direction:column;gap:8px;flex:1 1 auto;padding:18px 18px 20px;}
.scene-body h3{font-size:17px;line-height:1.4;font-weight:600;color:var(--ink);}
.scene-body p{font-size:14px;line-height:1.7;color:var(--ink-2);}
.tag-row{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;padding-top:10px;}
.tag-row .tag{height:24px;padding:0 8px;background:var(--paper);color:var(--ink-2);border:1px solid var(--line);}
.scene-card:focus-visible .scene-thumb img{transform:scale(1.02);}

/* ============ 9. 数据条 ============ */
.stats-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  box-shadow:var(--shadow-1);
  padding:32px 8px;
}
.stat{text-align:center;padding:6px 12px;}
.stat-num{display:block;font-size:40px;line-height:1.1;font-weight:700;letter-spacing:-.02em;color:var(--brand-deep);}
.stat-num em{font-style:normal;font-size:15px;font-weight:600;color:var(--ink-2);margin-left:2px;}
.stat-label{display:block;margin-top:8px;font-size:12px;color:var(--ink-3);letter-spacing:.02em;}

/* ============ 10. 引用卡 ============ */
.voice-card{
  display:flex;flex-direction:column;gap:16px;height:100%;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  box-shadow:var(--shadow-1);
  padding:28px;
  transition:box-shadow .18s ease,transform .18s ease;
}
.voice-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.voice-card blockquote{margin:0;font-size:18px;line-height:1.8;color:var(--ink);}
.voice-meta{display:flex;align-items:center;gap:10px;margin-top:auto;font-size:13px;color:var(--ink-3);}
.voice-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:28px;height:28px;border-radius:8px;
  background:var(--brand-tint);color:var(--brand);
  font-size:13px;font-weight:700;flex:0 0 auto;
}

/* ============ 11. 页内转化卡 ============ */
.inline-cta{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  background:var(--surface);
  border:1px solid var(--line);
  border-left:4px solid var(--accent);
  border-radius:var(--radius-l);
  box-shadow:var(--shadow-1);
  padding:36px;
}
.inline-cta h2{font-size:clamp(21px,2.2vw,28px);line-height:1.32;font-weight:700;color:var(--ink);}
.inline-cta p{margin-top:10px;font-size:15px;line-height:1.8;color:var(--ink-2);max-width:46em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ============ 12. 页脚 ============ */
.site-footer{background:var(--surface-2);border-top:1px dashed var(--line);margin-top:72px;}
.footer-stripes{
  height:8px;
  background:repeating-linear-gradient(45deg,var(--ink) 0 6px,transparent 6px 12px);
  opacity:.1;
}
.footer-top{padding:56px 0 40px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.15fr;gap:32px;}
.footer-col h3{margin-bottom:16px;font-size:14px;font-weight:600;color:var(--ink);letter-spacing:.02em;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col li{font-size:14px;line-height:1.65;color:var(--ink-2);}
.footer-col a{color:var(--ink-2);transition:color .18s ease;}
.footer-col a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px;}
.footer-brand p{margin-top:16px;max-width:30em;font-size:14px;line-height:1.8;color:var(--ink-2);}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px 24px;
  padding:20px 0 28px;
  border-top:1px solid var(--line);
  font-size:13px;line-height:1.7;color:var(--ink-3);
}

/* ============ 13. 底部固定转化条 ============ */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:90;
  background:rgba(255,255,255,.94);
  border-top:1px solid var(--line);
  box-shadow:var(--shadow-2);
  transition:transform .2s ease;
}
.sticky-inner{display:flex;align-items:center;gap:16px;padding-top:12px;padding-bottom:12px;}
.sticky-text{margin-right:auto;font-size:14px;line-height:1.6;color:var(--ink-2);}
.sticky-text.short{display:none;}
.sticky-close{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:50%;
  font-size:18px;line-height:1;color:var(--ink-3);
  transition:background-color .18s ease,color .18s ease;
}
.sticky-close:hover{background:var(--surface-2);color:var(--ink);}
.sticky-cta.is-hidden{display:none;}

/* ============ 14. 断点 ============ */
@media (min-width:1024px){
  .stat-cell + .stat-cell{border-left:1px dashed var(--line);}
}
@media (max-width:1023px){
  .nav-panel{flex-wrap:wrap;row-gap:4px;}
  .logo{margin-right:auto;}
  .nav-toggle{display:inline-flex;}
  .nav-cta{order:3;}
  .nav-cards{
    order:10;width:100%;
    display:none;
    flex-direction:column;align-items:stretch;justify-content:flex-start;gap:4px;
    margin-top:8px;padding-top:10px;
    border-top:1px dashed var(--line);
    max-height:70vh;overflow-y:auto;
  }
  .nav-cards.is-open{display:flex;}
  .nav-card{height:44px;justify-content:flex-start;padding:0 14px;font-size:14px;}
  .nav-card.is-active{box-shadow:inset 3px 0 0 var(--brand);}
  .hero-card{padding:30px;}
  .hero-shot{max-width:260px;margin:24px 0 0;}
  .section{padding-top:56px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .inline-cta{padding:28px;}
  .site-footer{margin-top:56px;}
}
@media (max-width:639px){
  .site-container{padding-left:20px;padding-right:20px;}
  body{padding-bottom:76px;}
  .nav-panel{padding:10px;}
  .logo-text{font-size:15px;}
  .logo-sub{font-size:11px;}
  .nav-cta{display:none;}
  .hero-card{padding:22px;}
  .hero-copy h1{font-size:28px;}
  .hero-lead{font-size:15px;}
  .hero-facts{gap:8px 16px;font-size:12px;}
  .hero-shot{max-width:100%;margin:22px auto 0;}
  .section{padding-top:44px;}
  .section-head{margin-bottom:24px;}
  .stats-card{padding:22px 4px;}
  .stat-num{font-size:32px;}
  .stat{padding:6px 4px;}
  .voice-card{padding:22px;}
  .voice-card blockquote{font-size:16px;}
  .inline-cta{padding:24px;border-left-width:3px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-top{padding:40px 0 28px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{font-size:12px;}
  .sticky-inner{padding-top:10px;padding-bottom:10px;gap:10px;}
  .sticky-text{display:none;}
  .sticky-text.short{display:inline;font-size:13px;}
}

/* roulang page: category4 */
:root{
  --paper:#F6F3EC;
  --surface:#FFFFFF;
  --surface-2:#EEF3F5;
  --line:#E5DFD3;
  --line-strong:#D3CBB9;
  --ink:#14202A;
  --ink-2:#4C5C68;
  --ink-3:#8A969F;
  --brand:#24506B;
  --brand-deep:#16394D;
  --brand-tint:#E7EEF2;
  --accent:#B4522A;
  --accent-hover:#9C4423;
  --accent-2:#D9A441;
  --radius-s:10px;
  --radius-m:14px;
  --radius-l:16px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(20,32,42,.06),0 10px 24px -14px rgba(20,32,42,.18);
  --shadow-2:0 2px 4px rgba(20,32,42,.06),0 22px 40px -20px rgba(20,32,42,.24);
  --sp-1:8px;
  --sp-2:12px;
  --sp-3:16px;
  --sp-4:24px;
  --sp-5:32px;
  --sp-6:48px;
  --sp-7:72px;
  --sp-8:96px;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  padding-bottom:88px;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
a{color:var(--brand);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--accent)}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea,select{font-family:inherit;font-size:16px;color:var(--ink)}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.grid-container.site-container{max-width:1200px;padding-left:24px;padding-right:24px}
@media screen and (max-width:640px){
  .grid-container.site-container{padding-left:20px;padding-right:20px}
}
.num,.stat-num,.meta time{font-variant-numeric:tabular-nums}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  padding:14px 0 10px;
  background:linear-gradient(180deg,var(--paper) 78%,rgba(246,243,236,0));
}
.nav-panel{
  display:flex;
  align-items:center;
  gap:var(--sp-3);
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  box-shadow:var(--shadow-1);
  padding:10px 14px;
  transition:box-shadow .2s ease;
}
.site-header.is-stuck .nav-panel{box-shadow:var(--shadow-2)}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--ink);
}
.logo:hover{color:var(--ink)}
.logo-mark{
  width:20px;height:20px;
  flex:0 0 20px;
  border-radius:5px;
  background:
    repeating-linear-gradient(135deg,var(--brand) 0 4px,var(--brand-deep) 4px 8px);
  position:relative;
}
.logo-mark::after{
  content:"";
  position:absolute;
  right:-4px;top:6px;
  width:8px;height:8px;
  border-radius:50%;
  background:var(--paper);
  border:1px solid var(--line-strong);
}
.logo-text{
  display:block;
  font-size:16px;
  font-weight:700;
  letter-spacing:-.01em;
  line-height:1.25;
}
.logo-sub{
  display:block;
  font-size:12px;
  color:var(--ink-3);
  letter-spacing:.04em;
  line-height:1.3;
}
.nav-cards{
  display:flex;
  align-items:center;
  gap:4px;
  flex:1 1 auto;
  flex-wrap:wrap;
  margin:0;
}
.nav-card{
  display:inline-flex;
  align-items:center;
  height:44px;
  padding:0 12px;
  border-radius:var(--radius-s);
  font-size:14px;
  color:var(--ink-2);
  white-space:nowrap;
  border-left:3px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.nav-card:hover{background:var(--brand-tint);color:var(--brand-deep)}
.nav-card.is-active{
  background:var(--brand-tint);
  color:var(--brand-deep);
  font-weight:600;
  border-left:3px solid var(--brand);
}
.nav-cta{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 18px;
  border-radius:var(--radius-pill);
  background:var(--brand-deep);
  color:#fff;
  font-size:14px;
  font-weight:600;
  transition:background .18s ease,transform .18s ease;
}
.nav-cta:hover{background:var(--accent);color:#fff;transform:translateY(-1px)}
.nav-toggle{
  display:none;
  margin-left:auto;
  height:40px;
  padding:0 16px;
  border-radius:var(--radius-s);
  border:1px solid var(--line-strong);
  background:var(--surface);
  font-size:14px;
  color:var(--brand-deep);
  font-weight:600;
}
@media screen and (max-width:1023px){
  .nav-panel{flex-wrap:wrap}
  .nav-toggle{display:inline-flex;align-items:center}
  .nav-cta{height:40px;padding:0 14px;font-size:13px}
  .nav-cards{
    display:none;
    width:100%;
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    padding:10px 0 4px;
    margin-top:6px;
    border-top:1px dashed var(--line-strong);
    max-height:70vh;
    overflow-y:auto;
  }
  .nav-cards.is-open{display:flex}
  .nav-card{height:46px;background:var(--paper);border-left-width:3px}
  .nav-card.is-active{background:var(--brand-tint)}
}
@media screen and (max-width:520px){
  .logo-text{font-size:14px}
  .logo-sub{font-size:11px}
  .nav-cta{display:none}
}

/* ============ 面包屑 ============ */
.crumbs{
  padding:var(--sp-2) 0 0;
  font-size:13px;
  color:var(--ink-3);
}
.crumbs a{color:var(--ink-2)}
.crumbs a:hover{color:var(--brand)}
.crumbs span.sep{margin:0 8px;color:var(--line-strong)}
.crumbs .current{color:var(--ink)}

/* ============ 通用板块 ============ */
.section{padding:var(--sp-6) 0 0}
.section-head{max-width:760px;margin-bottom:var(--sp-5)}
.section-head h2{
  font-size:28px;
  font-weight:700;
  letter-spacing:-.015em;
  line-height:1.3;
}
.section-head p{
  margin-top:var(--sp-2);
  font-size:15px;
  color:var(--ink-2);
  line-height:1.75;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--brand);
  font-weight:600;
  text-transform:none;
  margin-bottom:10px;
}
.eyebrow::before{
  content:"";
  width:22px;height:2px;
  background:var(--accent-2);
  border-radius:2px;
}

/* ============ Hero ============ */
.page-hero{padding:var(--sp-3) 0 0}
.hero-card{
  position:relative;
  overflow:hidden;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  box-shadow:var(--shadow-1);
  padding:38px 36px 36px;
}
.hero-card::before{
  content:"";
  position:absolute;
  inset:0 0 auto 0;
  height:8px;
  background:repeating-linear-gradient(135deg,var(--ink) 0 8px,var(--surface) 8px 16px);
  opacity:.9;
}
.hero-card::after{
  content:"";
  position:absolute;
  right:-90px;top:-110px;
  width:320px;height:320px;
  border-radius:50%;
  background:var(--brand-tint);
  opacity:.85;
  z-index:0;
}
.hero-inner{position:relative;z-index:1}
.hero-card h1{
  font-size:clamp(28px,3.4vw,46px);
  line-height:1.18;
  letter-spacing:-.02em;
  font-weight:700;
  max-width:20em;
}
.hero-card h1 em{
  font-style:normal;
  color:var(--brand);
}
.hero-lead{
  margin-top:var(--sp-3);
  max-width:38em;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-2);
}
.hero-facts{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-top:var(--sp-4);
  font-size:12px;
  color:var(--ink-3);
}
.hero-facts b{
  color:var(--brand-deep);
  font-weight:600;
  font-variant-numeric:tabular-nums;
}
.hero-facts .dot{color:var(--line-strong)}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:var(--sp-3);
  margin-top:var(--sp-4);
}
.hero-note{
  margin-top:var(--sp-2);
  font-size:12px;
  color:var(--ink-3);
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--radius-s);
  font-size:15px;
  font-weight:600;
  border:1.5px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 20px -14px rgba(180,82,42,.9)}
.btn-primary:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:var(--surface);color:var(--brand-deep);border-color:var(--brand)}
.btn-ghost:hover{background:var(--brand-tint);color:var(--brand-deep);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}

/* ============ 标签 / 徽章 ============ */
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:6px;
  background:var(--brand-tint);
  color:var(--brand);
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
}
.tag{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:var(--radius-pill);
  border:1px solid var(--accent-2);
  color:var(--ink-2);
  font-size:12px;
  background:var(--surface);
}

/* ============ 图文交错 ============ */
.zigzag{display:block}
.feature-row{
  align-items:center;
  padding:var(--sp-4) 0;
  border-bottom:1px dashed var(--line);
}
.feature-row:last-child{border-bottom:0}
.feature-media{position:relative}
.media-16x10{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  border-radius:var(--radius-m);
  border:1px solid var(--line);
  background:var(--surface-2);
  box-shadow:var(--shadow-1);
}
.media-16x10 img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .35s ease;
}
.feature-row:hover .media-16x10 img{transform:scale(1.03)}
.media-index{
  position:absolute;
  left:14px;top:14px;
  z-index:2;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:44px;
  height:32px;
  padding:0 10px;
  border-radius:var(--radius-s);
  background:rgba(255,255,255,.94);
  border:1px solid var(--line);
  color:var(--brand-deep);
  font-size:13px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
}
.feature-body{padding:var(--sp-2) 0}
.feature-body h2{
  font-size:22px;
  font-weight:700;
  letter-spacing:-.01em;
  line-height:1.4;
}
.feature-body h2 .step{
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  margin-right:8px;
}
.feature-body p{
  margin-top:var(--sp-2);
  font-size:15px;
  line-height:1.8;
  color:var(--ink-2);
}
.feature-list{
  margin-top:var(--sp-3);
  display:grid;
  gap:8px;
}
.feature-list li{
  position:relative;
  padding-left:18px;
  font-size:14px;
  color:var(--ink-2);
  line-height:1.7;
}
.feature-list li::before{
  content:"";
  position:absolute;
  left:0;top:.62em;
  width:7px;height:7px;
  border-radius:50%;
  background:var(--brand);
  opacity:.75;
}
.feature-meta{
  margin-top:var(--sp-3);
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  align-items:center;
  font-size:12px;
  color:var(--ink-3);
}
@media screen and (min-width:1024px){
  .feature-row.is-reversed .feature-media{order:2}
  .feature-row.is-reversed .feature-body{order:1}
}

/* ============ 数据条 ============ */
.stat-strip{
  margin-top:var(--sp-5);
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  box-shadow:var(--shadow-1);
  padding:var(--sp-4) var(--sp-2);
}
.stat{
  text-align:center;
  padding:var(--sp-2) var(--sp-3);
  border-right:1px dashed var(--line);
}
.stat:last-child{border-right:0}
.stat-num{
  font-size:40px;
  font-weight:700;
  line-height:1.1;
  letter-spacing:-.02em;
  color:var(--brand-deep);
}
.stat-num span{font-size:16px;font-weight:600;margin-left:2px;color:var(--ink-2)}
.stat-label{
  margin-top:6px;
  font-size:12px;
  color:var(--ink-3);
  letter-spacing:.02em;
}
@media screen and (max-width:639px){
  .stat{border-right:0;border-bottom:1px dashed var(--line)}
  .stat:last-child{border-bottom:0}
  .stat-num{font-size:34px}
}

/* ============ 流程条带卡 ============ */
.band-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  box-shadow:var(--shadow-1);
  display:grid;
  grid-template-columns:repeat(3,1fr);
  overflow:hidden;
}
.band-seg{
  padding:var(--sp-4);
  border-right:1px dashed var(--line-strong);
}
.band-seg:last-child{border-right:0}
.band-no{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;height:38px;
  border-radius:8px;
  background:var(--brand-tint);
  color:var(--brand-deep);
  font-size:14px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
}
.band-seg h3{
  margin-top:var(--sp-2);
  font-size:17px;
  font-weight:600;
  line-height:1.4;
}
.band-seg p{
  margin-top:6px;
  font-size:14px;
  line-height:1.75;
  color:var(--ink-2);
}
@media screen and (max-width:1023px){
  .band-card{grid-template-columns:1fr}
  .band-seg{border-right:0;border-bottom:1px solid var(--line-strong)}
  .band-seg:last-child{border-bottom:0}
}

/* ============ FAQ ============ */
.faq{max-width:820px}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  box-shadow:var(--shadow-1);
  margin-bottom:var(--sp-2);
  overflow:hidden;
  transition:box-shadow .18s ease,border-color .18s ease;
}
.faq-item:hover{box-shadow:var(--shadow-2)}
.faq-item.is-open{border-color:var(--brand)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  text-align:left;
  padding:18px 20px;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  min-height:60px;
  transition:color .18s ease,background .18s ease;
}
.faq-q:hover{color:var(--brand-deep);background:var(--paper)}
.faq-q::after{
  content:"+";
  flex:0 0 auto;
  width:24px;height:24px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  border:1px solid var(--line-strong);
  color:var(--brand);
  font-size:15px;
  line-height:1;
}
.faq-item.is-open .faq-q::after{content:"–"}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .25s ease;
  background:var(--paper);
}
.faq-a p{
  padding:14px 20px 18px;
  font-size:15px;
  line-height:1.8;
  color:var(--ink-2);
}

/* ============ CTA ============ */
.cta-card{
  position:relative;
  overflow:hidden;
  background:var(--brand-deep);
  color:#fff;
  border-radius:var(--radius-l);
  box-shadow:var(--shadow-2);
  padding:44px 40px;
}
.cta-card::before{
  content:"";
  position:absolute;
  right:-70px;bottom:-90px;
  width:280px;height:280px;
  border-radius:50%;
  background:rgba(217,164,65,.18);
}
.cta-card h2{
  font-size:28px;
  font-weight:700;
  line-height:1.3;
  letter-spacing:-.015em;
  position:relative;
  z-index:1;
}
.cta-card p{
  position:relative;
  z-index:1;
  margin-top:var(--sp-2);
  max-width:44em;
  font-size:15px;
  line-height:1.8;
  color:rgba(255,255,255,.82);
}
.cta-actions{
  position:relative;
  z-index:1;
  display:flex;
  flex-wrap:wrap;
  gap:var(--sp-3);
  margin-top:var(--sp-4);
}
.cta-card .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.cta-card .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}
.cta-meta{
  position:relative;
  z-index:1;
  margin-top:var(--sp-4);
  display:flex;
  flex-wrap:wrap;
  gap:16px;
  font-size:13px;
  color:rgba(255,255,255,.68);
}
@media screen and (max-width:639px){
  .cta-card{padding:32px 22px}
  .cta-card h2{font-size:22px}
}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:var(--sp-7);
  background:var(--surface-2);
  border-top:1px dashed var(--line-strong);
}
.footer-stripes{
  height:8px;
  background:repeating-linear-gradient(135deg,var(--ink) 0 8px,var(--surface-2) 8px 16px);
  opacity:.85;
}
.footer-top{padding:var(--sp-6) 0 var(--sp-5)}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:var(--sp-5);
}
.footer-col h3{
  font-size:14px;
  font-weight:600;
  color:var(--ink);
  margin-bottom:var(--sp-3);
}
.footer-col ul{display:grid;gap:10px}
.footer-col li{font-size:14px;color:var(--ink-2);line-height:1.7}
.footer-col a{font-size:14px;color:var(--ink-2)}
.footer-col a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px}
.footer-brand p{
  margin-top:var(--sp-3);
  font-size:14px;
  line-height:1.8;
  color:var(--ink-2);
  max-width:32em;
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
  padding:var(--sp-3) 0 var(--sp-5);
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--ink-3);
}
@media screen and (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:var(--sp-4)}
}
@media screen and (max-width:639px){
  .footer-grid{grid-template-columns:1fr}
}

/* ============ 底部固定转化条 ============ */
.sticky-cta{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:80;
  background:rgba(255,255,255,.95);
  border-top:1px solid var(--line);
  box-shadow:0 -10px 30px -18px rgba(20,32,42,.35);
  backdrop-filter:saturate(120%);
}
.sticky-inner{
  display:flex;
  align-items:center;
  gap:var(--sp-3);
  min-height:72px;
  padding:10px 0;
}
.sticky-text{
  font-size:14px;
  color:var(--ink-2);
  flex:1 1 auto;
}
.sticky-text b{color:var(--brand-deep);font-weight:600}
.sticky-close{
  flex:0 0 auto;
  width:32px;height:32px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  border:1px solid var(--line-strong);
  color:var(--ink-3);
  font-size:16px;
  line-height:1;
  transition:background .18s ease,color .18s ease;
}
.sticky-close:hover{background:var(--paper);color:var(--ink)}
@media screen and (max-width:639px){
  body{padding-bottom:76px}
  .sticky-inner{min-height:64px;gap:10px}
  .sticky-text{font-size:12px}
  .sticky-text .long{display:none}
  .btn{height:44px;padding:0 18px;font-size:14px}
}

/* roulang page: category5 */
:root{
  --paper:#F6F3EC;
  --surface:#FFFFFF;
  --surface-2:#EEF3F5;
  --line:#E5DFD3;
  --line-strong:#D3CBB9;
  --ink:#14202A;
  --ink-2:#4C5C68;
  --ink-3:#8A969F;
  --brand:#24506B;
  --brand-deep:#16394D;
  --brand-tint:#E7EEF2;
  --accent:#B4522A;
  --accent-hover:#9C4423;
  --accent-2:#D9A441;
  --danger:#B3261E;
  --radius-s:10px;
  --radius-m:14px;
  --radius-l:16px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(20,32,42,.06), 0 10px 24px -14px rgba(20,32,42,.18);
  --shadow-2:0 2px 4px rgba(20,32,42,.06), 0 22px 40px -20px rgba(20,32,42,.24);
  --sp-1:8px;
  --sp-2:12px;
  --sp-3:16px;
  --sp-4:24px;
  --sp-5:32px;
  --sp-6:48px;
  --sp-7:72px;
  --sp-8:96px;
  --font: "PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  padding-bottom:88px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--accent);}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding-left:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.site-container{max-width:1200px;padding-left:24px;padding-right:24px;}
@media (max-width:640px){.site-container{padding-left:20px;padding-right:20px;}}

/* header */
.site-header{
  position:sticky;top:0;z-index:60;
  padding-top:16px;
  background:linear-gradient(180deg,var(--paper) 0%,rgba(246,243,236,.92) 70%,rgba(246,243,236,0) 100%);
}
.nav-panel{
  display:flex;align-items:center;gap:var(--sp-3);
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  box-shadow:var(--shadow-1);
  padding:10px;
  transition:box-shadow .18s ease;
}
.site-header.is-stuck .nav-panel{box-shadow:var(--shadow-2);}
.logo{display:flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto;}
.logo:hover{color:var(--ink);}
.logo-mark{
  width:20px;height:20px;border-radius:5px;flex:0 0 auto;
  background:var(--brand);
  position:relative;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.35);
}
.logo-mark::after{
  content:"";position:absolute;left:4px;right:4px;top:7px;height:2px;
  background:repeating-linear-gradient(90deg,var(--accent-2) 0 4px,transparent 4px 7px);
}
.logo-text{display:block;font-size:16px;font-weight:700;letter-spacing:-.01em;line-height:1.25;}
.logo-sub{display:block;font-size:12px;color:var(--ink-3);line-height:1.4;letter-spacing:.02em;}
.nav-cards{display:flex;align-items:center;gap:4px;flex:1 1 auto;flex-wrap:wrap;}
.nav-card{
  display:inline-flex;align-items:center;
  height:44px;padding:0 12px;
  border-radius:var(--radius-s);
  font-size:14px;color:var(--ink-2);
  white-space:nowrap;
  border-left:3px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.nav-card:hover{background:var(--brand-tint);color:var(--brand-deep);}
.nav-card.is-active{
  background:var(--brand-tint);
  color:var(--brand-deep);
  font-weight:600;
  border-left-color:var(--brand);
}
.nav-cta{
  flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  height:44px;padding:0 20px;border-radius:var(--radius-pill);
  background:var(--brand-deep);color:#fff;font-size:14px;font-weight:600;
  transition:background .18s ease,transform .18s ease;
}
.nav-cta:hover{background:var(--accent);color:#fff;transform:translateY(-1px);}
.nav-toggle{
  display:none;
  height:44px;padding:0 16px;
  border-radius:var(--radius-s);
  border:1px solid var(--line-strong);
  background:var(--surface-2);
  color:var(--brand-deep);font-size:14px;font-weight:600;
  cursor:pointer;
}
.nav-toggle:hover{background:var(--brand-tint);}
@media (max-width:1023px){
  .nav-panel{flex-wrap:wrap;}
  .nav-toggle{display:inline-flex;align-items:center;margin-left:auto;}
  .nav-cta{display:none;}
  .nav-cards{
    display:none;
    width:100%;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    max-height:70vh;
    overflow-y:auto;
    padding-top:8px;
    border-top:1px dashed var(--line-strong);
    margin-top:4px;
  }
  .nav-cards.is-open{display:flex;}
  .nav-card{height:46px;border-left-width:3px;}
}

/* breadcrumb */
.crumb{padding:var(--sp-5) 0 0;}
.crumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);}
.crumb-list a{color:var(--ink-3);}
.crumb-list a:hover{color:var(--brand);}
.crumb-list .sep{color:var(--line-strong);}
.crumb-list .current{color:var(--ink);}

/* layout */
.section{padding-top:var(--sp-7);}
.section-tight{padding-top:var(--sp-6);}
.section:last-of-type{padding-bottom:var(--sp-7);}
.narrow{max-width:760px;margin-left:auto;margin-right:auto;}
.section-head{margin-bottom:var(--sp-5);}
.section-head h2{font-size:30px;line-height:1.28;font-weight:700;letter-spacing:-.015em;}
.section-head p{margin-top:10px;font-size:15px;color:var(--ink-2);line-height:1.75;}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.14em;color:var(--brand);
  text-transform:uppercase;font-weight:600;margin-bottom:10px;
}
@media (max-width:1023px){
  .section{padding-top:var(--sp-6);}
  .section-head h2{font-size:26px;}
}
@media (max-width:640px){
  .section{padding-top:56px;}
  .section-head h2{font-size:23px;}
}

/* badge / tag */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:6px;background:var(--brand-tint);color:var(--brand);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;
  border-radius:var(--radius-pill);border:1px solid var(--line-strong);
  font-size:12px;color:var(--ink-2);background:var(--surface);
}
.tag-solid{background:var(--surface-2);border-color:transparent;color:var(--brand-deep);}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  border-radius:var(--radius-s);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-ghost{background:var(--surface);color:var(--brand-deep);border:1.5px solid var(--brand);}
.btn-ghost:hover{background:var(--brand-tint);color:var(--brand-deep);}
.btn-line{background:transparent;color:var(--brand-deep);border:1px solid var(--line-strong);}
.btn-line:hover{border-color:var(--brand);background:var(--surface);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.btn-group{display:flex;flex-wrap:wrap;gap:16px;align-items:center;}

/* hero */
.hero{padding-top:var(--sp-5);}
.hero-inner{text-align:center;}
.hero h1{
  font-size:44px;line-height:1.22;font-weight:700;letter-spacing:-.02em;
  margin-top:var(--sp-3);
}
.hero-lead{
  margin-top:20px;font-size:17px;line-height:1.8;color:var(--ink-2);
}
.hero-facts{
  margin-top:var(--sp-4);
  display:flex;flex-wrap:wrap;justify-content:center;gap:6px 14px;
  font-size:12px;color:var(--ink-3);
  font-variant-numeric:tabular-nums;
}
.hero-facts span{display:inline-flex;align-items:center;gap:6px;}
.hero-facts span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--accent-2);}
.hero-actions{margin-top:var(--sp-5);display:flex;flex-wrap:wrap;justify-content:center;gap:16px;}
.hero-hint{margin-top:14px;font-size:12px;color:var(--ink-3);}
.hero-figure{
  margin-top:var(--sp-5);
  border-radius:var(--radius-l);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  background:var(--surface);
}
.hero-figure .ratio{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--surface-2);}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.hero-figure figcaption{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;
  padding:14px 20px;font-size:13px;color:var(--ink-3);
  border-top:1px solid var(--line);
  font-variant-numeric:tabular-nums;
}
@media (max-width:1023px){.hero h1{font-size:36px;}.hero-lead{font-size:16px;}}
@media (max-width:640px){
  .hero h1{font-size:28px;}
  .hero-lead{font-size:15px;}
  .hero-actions .btn{width:100%;}
}

/* cards */
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  box-shadow:var(--shadow-1);
  padding:var(--sp-4);
  transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:var(--line-strong);}
.card-flat:hover{transform:none;}
.card h3{font-size:18px;font-weight:600;line-height:1.5;}
.card p{margin-top:10px;font-size:14px;line-height:1.75;color:var(--ink-2);}
.card-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:8px;
  background:var(--brand-tint);color:var(--brand);
  font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;
  margin-bottom:14px;
}
.card-grid{margin-top:var(--sp-1);}
.card-grid .cell{margin-bottom:var(--sp-4);}
.card-list{margin-top:12px;display:flex;flex-direction:column;gap:8px;}
.card-list li{
  position:relative;padding-left:16px;font-size:14px;color:var(--ink-2);line-height:1.7;
}
.card-list li::before{
  content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;
  background:var(--brand);opacity:.55;
}

/* stats */
.stats{
  margin-top:var(--sp-5);
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  box-shadow:var(--shadow-1);
  overflow:hidden;
}
.stats-row{display:flex;flex-wrap:wrap;}
.stat{
  flex:1 1 0;min-width:150px;
  padding:var(--sp-4) var(--sp-4);
  border-left:1px dashed var(--line-strong);
}
.stat:first-child{border-left:none;}
.stat-num{
  font-size:38px;line-height:1.1;font-weight:700;color:var(--brand-deep);
  letter-spacing:-.02em;font-variant-numeric:tabular-nums;
}
.stat-num small{font-size:15px;font-weight:600;margin-left:4px;color:var(--ink-2);}
.stat-label{margin-top:8px;font-size:12px;color:var(--ink-3);line-height:1.6;}
@media (max-width:1023px){
  .stat{flex:1 1 50%;min-width:50%;border-left:1px dashed var(--line-strong);}
  .stat:nth-child(odd){border-left:none;}
  .stat:nth-child(n+3){border-top:1px dashed var(--line-strong);}
}
@media (max-width:640px){
  .stat{flex:1 1 100%;border-left:none;border-top:1px dashed var(--line-strong);}
  .stat:first-child{border-top:none;}
  .stat-num{font-size:30px;}
}

/* quote */
.quote-block{
  margin-top:var(--sp-5);
  padding:var(--sp-5);
  border-radius:var(--radius-l);
  background:var(--surface);
  border:1px solid var(--line);
  border-left:4px solid var(--accent);
  box-shadow:var(--shadow-1);
}
.quote-block p{
  font-size:18px;line-height:1.85;color:var(--ink);
}
.quote-block footer{
  margin-top:var(--sp-3);
  font-size:13px;color:var(--ink-3);
  font-variant-numeric:tabular-nums;
}

/* steps */
.steps{margin-top:var(--sp-4);position:relative;}
.step{
  display:grid;grid-template-columns:64px 1fr;gap:var(--sp-3);
  padding:var(--sp-4) 0;
  border-top:1px dashed var(--line-strong);
}
.step:first-child{border-top:none;padding-top:0;}
.step-index{
  font-size:20px;font-weight:700;color:var(--brand);
  font-variant-numeric:tabular-nums;letter-spacing:-.01em;
  line-height:1.4;
}
.step-body h3{font-size:18px;font-weight:600;}
.step-body p{margin-top:8px;font-size:14px;line-height:1.75;color:var(--ink-2);}
.step-meta{
  margin-top:10px;display:flex;flex-wrap:wrap;gap:8px;
}
@media (max-width:640px){
  .step{grid-template-columns:1fr;gap:6px;}
}

/* faq */
.faq{margin-top:var(--sp-3);}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  margin-bottom:12px;
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item[open]{border-color:var(--line-strong);box-shadow:var(--shadow-2);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:18px 52px 18px 20px;
  font-size:16px;font-weight:600;line-height:1.6;
  position:relative;
  min-height:56px;
  display:flex;align-items:center;
  transition:color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand);}
.faq-item summary::after{
  content:"";position:absolute;right:20px;top:50%;
  width:12px;height:2px;background:var(--brand);
  transform:translateY(-50%);
}
.faq-item summary::before{
  content:"";position:absolute;right:25px;top:50%;
  width:2px;height:12px;background:var(--brand);
  transform:translateY(-50%);
  transition:opacity .18s ease,transform .18s ease;
}
.faq-item[open] summary::before{opacity:0;transform:translateY(-50%) rotate(90deg);}
.faq-body{
  padding:16px 20px 20px;
  background:var(--paper);
  border-top:1px solid var(--line);
  font-size:15px;line-height:1.8;color:var(--ink-2);
}

/* form */
.form-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  box-shadow:var(--shadow-2);
  padding:var(--sp-5);
  margin-top:var(--sp-5);
}
.form-grid .cell{margin-bottom:var(--sp-3);}
.field label{
  display:block;font-size:13px;color:var(--ink-2);margin-bottom:8px;font-weight:600;
}
.field label .req{color:var(--accent);margin-left:2px;}
.field input,.field select,.field textarea{
  width:100%;
  height:48px;
  padding:0 14px;
  border-radius:var(--radius-s);
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--ink);
  font-size:15px;
  font-family:inherit;
  transition:border-color .18s ease,box-shadow .18s ease;
  appearance:none;
}
.field textarea{height:112px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field select{background-image:linear-gradient(45deg,transparent 50%,var(--ink-2) 50%),linear-gradient(135deg,var(--ink-2) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 2px var(--brand-tint);
}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3);}
.form-note{
  margin-top:var(--sp-3);
  font-size:13px;color:var(--ink-3);line-height:1.7;
}
.form-feedback{
  display:none;
  margin-top:var(--sp-3);
  padding:12px 16px;
  border-radius:var(--radius-s);
  background:var(--brand-tint);
  color:var(--brand-deep);
  font-size:14px;
  border:1px solid var(--line-strong);
}
.form-feedback.is-visible{display:block;}

/* cta band */
.cta-band{
  margin-top:var(--sp-7);
  border-radius:var(--radius-l);
  border:1px solid var(--line);
  background:var(--surface);
  box-shadow:var(--shadow-2);
  overflow:hidden;
}
.cta-band-inner{
  display:grid;grid-template-columns:1.15fr .85fr;gap:var(--sp-5);
  padding:var(--sp-6);
  align-items:center;
}
.cta-band h2{font-size:28px;line-height:1.32;font-weight:700;letter-spacing:-.015em;}
.cta-band p{margin-top:12px;font-size:15px;line-height:1.8;color:var(--ink-2);}
.cta-band-side{
  background:var(--surface-2);
  border-radius:var(--radius-m);
  padding:var(--sp-4);
  border:1px solid var(--line);
}
.cta-band-side ul{display:flex;flex-direction:column;gap:10px;}
.cta-band-side li{font-size:14px;color:var(--ink-2);display:flex;gap:10px;line-height:1.7;}
.cta-band-side li strong{color:var(--brand-deep);font-weight:600;flex:0 0 auto;font-variant-numeric:tabular-nums;}
@media (max-width:1023px){
  .cta-band-inner{grid-template-columns:1fr;padding:var(--sp-5);}
}

/* footer */
.site-footer{
  margin-top:var(--sp-8);
  background:var(--surface-2);
  border-top:1px dashed var(--line-strong);
  position:relative;
}
.footer-stripes{
  height:8px;
  background:repeating-linear-gradient(135deg,var(--ink) 0 8px,transparent 8px 16px);
  opacity:.85;
}
.footer-top{padding:var(--sp-6) 0 var(--sp-5);}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:var(--sp-5);}
.footer-col h3{font-size:14px;font-weight:600;margin-bottom:var(--sp-3);color:var(--ink);}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col li{font-size:14px;color:var(--ink-2);line-height:1.7;}
.footer-col a{color:var(--ink-2);text-decoration:underline;text-decoration-color:transparent;text-underline-offset:4px;transition:color .18s ease,text-decoration-color .18s ease;}
.footer-col a:hover{color:var(--brand);text-decoration-color:var(--brand);}
.footer-brand p{margin-top:var(--sp-3);font-size:14px;line-height:1.8;color:var(--ink-2);max-width:34em;}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  padding:var(--sp-3) 0 var(--sp-5);
  border-top:1px solid var(--line);
  font-size:13px;color:var(--ink-3);
  line-height:1.7;
}
@media (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:var(--sp-4);}
}
@media (max-width:640px){
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{margin-top:var(--sp-7);}
}

/* sticky cta */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:80;
  background:rgba(255,255,255,.94);
  border-top:1px solid var(--line);
  box-shadow:var(--shadow-2);
  transition:transform .22s ease,opacity .22s ease;
}
.sticky-cta.is-hidden{transform:translateY(110%);opacity:0;pointer-events:none;}
.sticky-inner{
  display:flex;align-items:center;gap:var(--sp-3);
  min-height:72px;
}
.sticky-text{font-size:14px;color:var(--ink-2);flex:1 1 auto;}
.sticky-inner .btn{flex:0 0 auto;}
.sticky-close{
  width:32px;height:32px;border-radius:50%;
  border:1px solid var(--line-strong);background:var(--surface);
  color:var(--ink-2);font-size:16px;line-height:1;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
  flex:0 0 auto;
  transition:background .18s ease,color .18s ease;
}
.sticky-close:hover{background:var(--brand-tint);color:var(--brand-deep);}
@media (max-width:640px){
  .sticky-inner{min-height:64px;gap:10px;}
  .sticky-text{font-size:13px;}
  .sticky-inner .btn{height:40px;padding:0 16px;font-size:14px;}
}

/* roulang page: category6 */
:root{
  --paper:#F6F3EC;
  --surface:#FFFFFF;
  --surface-2:#EEF3F5;
  --line:#E5DFD3;
  --line-strong:#D3CBB9;
  --ink:#14202A;
  --ink-2:#4C5C68;
  --ink-3:#8A969F;
  --brand:#24506B;
  --brand-deep:#16394D;
  --brand-tint:#E7EEF2;
  --accent:#B4522A;
  --accent-hover:#9C4423;
  --accent-2:#D9A441;
  --error:#B3261E;
  --radius-s:10px;
  --radius-m:14px;
  --radius-l:16px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(20,32,42,.06),0 10px 24px -14px rgba(20,32,42,.18);
  --shadow-2:0 2px 4px rgba(20,32,42,.06),0 22px 40px -20px rgba(20,32,42,.24);
  --sp-1:8px;
  --sp-2:12px;
  --sp-3:16px;
  --sp-4:24px;
  --sp-5:32px;
  --sp-6:48px;
  --sp-7:72px;
  --sp-8:96px;
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}

/* ============ reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding-bottom:88px;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color 180ms ease,background-color 180ms ease,border-color 180ms ease;}
a:hover{color:var(--accent);}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding-left:1.1em;}
h1,h2,h3,h4{font-weight:700;line-height:1.28;letter-spacing:-.01em;color:var(--ink);}
button{font-family:inherit;font-size:inherit;border:0;background:none;cursor:pointer;color:inherit;}
input,textarea,select{font-family:inherit;font-size:16px;color:var(--ink);}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ============ 布局 ============ */
.grid-container.site-container{
  max-width:1200px;
  width:100%;
  padding-left:24px;
  padding-right:24px;
  margin-left:auto;
  margin-right:auto;
}
main{display:block;}
.section{padding-top:var(--sp-7);padding-bottom:var(--sp-7);}
.section--tight{padding-top:var(--sp-6);padding-bottom:var(--sp-6);}
.section-head{margin-bottom:var(--sp-5);}
.section-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;color:var(--brand);
  background:var(--brand-tint);
  padding:5px 12px;border-radius:var(--radius-pill);
  margin-bottom:14px;font-weight:600;
}
.section-title{font-size:30px;line-height:1.3;margin-bottom:10px;}
.section-desc{font-size:16px;line-height:1.75;color:var(--ink-2);max-width:36em;}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  padding-top:16px;padding-bottom:8px;
  background:linear-gradient(180deg,var(--paper) 0%,rgba(246,243,236,.92) 70%,rgba(246,243,236,0) 100%);
}
.nav-panel{
  display:flex;align-items:center;gap:16px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  box-shadow:var(--shadow-1);
  padding:10px 14px;
  transition:box-shadow 200ms ease;
}
.site-header.is-stuck .nav-panel{box-shadow:var(--shadow-2);}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--ink);flex-shrink:0;
}
.logo:hover{color:var(--ink);}
.logo-mark{
  width:20px;height:20px;flex-shrink:0;position:relative;
  border-radius:4px;
  background:
    repeating-linear-gradient(135deg,var(--brand) 0 3px,transparent 3px 7px);
  border:1.5px solid var(--brand-deep);
}
.logo-mark::after{
  content:"";position:absolute;right:-3px;top:50%;transform:translateY(-50%);
  width:6px;height:6px;border-radius:50%;background:var(--paper);
  border:1.5px solid var(--brand-deep);
}
.logo-text{display:block;font-size:16px;font-weight:700;line-height:1.2;letter-spacing:-.01em;}
.logo-sub{display:block;font-size:12px;color:var(--ink-3);line-height:1.5;font-weight:400;letter-spacing:.02em;}
.nav-cards{display:flex;align-items:center;gap:4px;flex:1;min-width:0;}
.nav-card{
  display:inline-flex;align-items:center;
  height:44px;padding:0 12px;
  border-radius:var(--radius-s);
  font-size:14px;color:var(--ink-2);font-weight:500;
  white-space:nowrap;
  border-left:3px solid transparent;
  transition:background-color 180ms ease,color 180ms ease,border-color 180ms ease;
}
.nav-card:hover{background:var(--brand-tint);color:var(--brand-deep);}
.nav-card.is-active{
  background:var(--brand-tint);
  color:var(--brand-deep);
  font-weight:600;
  border-left-color:var(--brand);
}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:44px;padding:0 20px;border-radius:var(--radius-pill);
  background:var(--brand-deep);color:#fff;
  font-size:14px;font-weight:600;white-space:nowrap;flex-shrink:0;
  transition:background-color 180ms ease,transform 180ms ease;
}
.nav-cta:hover{background:var(--accent);color:#fff;transform:translateY(-1px);}
.nav-toggle{
  display:none;margin-left:auto;
  height:40px;padding:0 16px;border-radius:var(--radius-pill);
  border:1.5px solid var(--line-strong);
  color:var(--brand-deep);font-size:14px;font-weight:600;
  background:var(--surface);
}

/* ============ 面包屑 ============ */
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-3);
  padding-top:20px;
}
.crumbs a{color:var(--ink-2);}
.crumbs a:hover{color:var(--brand);}
.crumbs span.sep{color:var(--line-strong);}
.crumbs .current{color:var(--ink);font-weight:600;}

/* ============ Hero ============ */
.page-hero{padding-top:var(--sp-5);padding-bottom:var(--sp-7);}
.hero-card{
  position:relative;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  padding:var(--sp-6);
  background-image:linear-gradient(120deg,rgba(36,80,107,.06),rgba(246,243,236,0) 62%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
}
.hero-grid{display:flex;gap:var(--sp-6);align-items:center;}
.hero-copy{flex:1 1 56%;min-width:0;}
.hero-media{flex:0 0 40%;max-width:40%;}
.badge{
  display:inline-flex;align-items:center;
  height:24px;padding:0 10px;
  border-radius:6px;
  background:var(--brand-tint);color:var(--brand);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge--accent{background:transparent;border:1px solid var(--accent-2);color:var(--accent);}
.hero-title{
  font-size:clamp(28px,3.4vw,44px);
  line-height:1.2;letter-spacing:-.02em;
  margin:18px 0 16px;
}
.hero-title .hl{color:var(--brand);display:block;font-size:.66em;margin-top:10px;letter-spacing:-.01em;}
.hero-lead{
  font-size:17px;line-height:1.75;color:var(--ink-2);
  max-width:34em;margin-bottom:18px;
}
.fact-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:12.5px;color:var(--ink-3);
  margin-bottom:24px;
}
.fact-bar .dot{width:4px;height:4px;border-radius:50%;background:var(--line-strong);}
.btn-row{display:flex;flex-wrap:wrap;gap:16px;align-items:center;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;
  border-radius:var(--radius-s);
  font-size:15px;font-weight:600;
  transition:background-color 180ms ease,color 180ms ease,border-color 180ms ease,transform 180ms ease,box-shadow 180ms ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:var(--surface);color:var(--brand);border:1.5px solid var(--brand);}
.btn-ghost:hover{background:var(--brand-tint);color:var(--brand-deep);transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.micro-note{font-size:12px;color:var(--ink-3);margin-top:14px;}
.hero-frame{
  position:relative;
  border-radius:var(--radius-m);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-2);
  aspect-ratio:4/3;
  background:var(--surface-2);
}
.hero-frame img{width:100%;height:100%;object-fit:cover;}
.hero-frame::after{
  content:"";position:absolute;left:0;right:0;top:0;height:8px;
  background:repeating-linear-gradient(135deg,var(--ink) 0 10px,var(--surface) 10px 20px);
  opacity:.85;
}
.hero-ticket{
  position:absolute;right:-8px;bottom:16px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-s);
  box-shadow:var(--shadow-1);
  padding:10px 14px;font-size:12px;color:var(--ink-2);
  line-height:1.5;
}
.hero-ticket strong{display:block;color:var(--brand-deep);font-size:14px;}

/* ============ 三档合作条带 ============ */
.band{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  box-shadow:var(--shadow-1);
  display:grid;
  grid-template-columns:repeat(3,1fr);
  overflow:hidden;
}
.band-item{
  padding:var(--sp-4) var(--sp-4) var(--sp-4);
  border-left:1px dashed var(--line-strong);
  transition:background-color 180ms ease;
}
.band-item:first-child{border-left:0;}
.band-item:hover{background:var(--brand-tint);}
.band-idx{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:26px;border-radius:6px;
  background:var(--brand-tint);color:var(--brand);
  font-size:12px;font-weight:700;letter-spacing:.04em;
  margin-bottom:12px;
}
.band-item h3{font-size:18px;margin-bottom:8px;}
.band-item p{font-size:14px;line-height:1.7;color:var(--ink-2);}
.band-link{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:14px;font-size:14px;font-weight:600;color:var(--brand);
}
.band-link .arrow{transition:transform 180ms ease;}
.band-link:hover{color:var(--accent);}
.band-link:hover .arrow{transform:translateX(4px);}

/* ============ 能力矩阵 ============ */
.matrix-card{
  height:100%;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  box-shadow:var(--shadow-1);
  padding:var(--sp-4);
  margin-bottom:24px;
  transition:box-shadow 200ms ease,transform 200ms ease,border-color 200ms ease;
}
.matrix-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:var(--line-strong);}
.matrix-top{display:flex;align-items:center;gap:10px;margin-bottom:12px;}
.matrix-ico{
  width:34px;height:34px;border-radius:9px;
  background:var(--brand-tint);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--brand);font-size:13px;font-weight:700;
  flex-shrink:0;
}
.matrix-card h3{font-size:17px;line-height:1.4;}
.matrix-card p{font-size:14px;line-height:1.72;color:var(--ink-2);}
.tag-row{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px;}
.tag{
  display:inline-flex;align-items:center;
  height:24px;padding:0 10px;border-radius:var(--radius-pill);
  background:var(--paper);border:1px solid var(--line);
  font-size:12px;color:var(--ink-2);
}

/* ============ 流程 ============ */
.flow-wrap{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  box-shadow:var(--shadow-1);
  padding:var(--sp-5);
}
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--sp-4);}
.flow-step{position:relative;padding-left:18px;border-left:2px solid var(--brand-tint);}
.flow-step::before{
  content:"";position:absolute;left:-5px;top:6px;
  width:8px;height:8px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 0 3px var(--paper);
}
.flow-step .step-no{font-size:12px;font-weight:700;color:var(--accent);letter-spacing:.06em;}
.flow-step h3{font-size:16px;margin:6px 0 8px;}
.flow-step p{font-size:14px;line-height:1.72;color:var(--ink-2);}
.flow-step .days{
  display:inline-block;margin-top:10px;font-size:12px;
  color:var(--brand);background:var(--brand-tint);
  padding:3px 9px;border-radius:var(--radius-pill);
}

/* ============ FAQ + 侧栏 ============ */
.faq-layout{display:flex;gap:var(--sp-5);align-items:flex-start;}
.faq-main{flex:1 1 68%;min-width:0;}
.faq-side{flex:0 0 300px;max-width:300px;position:sticky;top:96px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  box-shadow:var(--shadow-1);
  margin-bottom:12px;
  overflow:hidden;
  transition:box-shadow 180ms ease,border-color 180ms ease;
}
.faq-item:hover{border-color:var(--line-strong);}
.faq-item[open]{box-shadow:var(--shadow-2);border-color:var(--brand-tint);}
.faq-item summary{
  list-style:none;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:60px;padding:16px 20px;
  font-size:16px;font-weight:600;color:var(--ink);
  cursor:pointer;
  transition:color 180ms ease,background-color 180ms ease;
}
.faq-item summary:hover{color:var(--brand);}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  flex-shrink:0;
  width:26px;height:26px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-tint);color:var(--brand);
  font-size:16px;font-weight:600;line-height:1;
  transition:transform 180ms ease,background-color 180ms ease,color 180ms ease;
}
.faq-item[open] summary::after{content:"−";background:var(--accent);color:#fff;}
.faq-body{
  padding:0 20px 18px;
  font-size:15px;line-height:1.8;color:var(--ink-2);
  background:var(--paper);
  border-top:1px solid var(--line);
  padding-top:16px;
}
.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-m);
  box-shadow:var(--shadow-1);
  padding:var(--sp-4);
  margin-bottom:16px;
}
.side-card h3{
  font-size:15px;margin-bottom:14px;
  padding-bottom:12px;border-bottom:1px dashed var(--line-strong);
}
.side-list{list-style:none;padding:0;margin:0;}
.side-list li{margin-bottom:2px;}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  min-height:44px;padding:8px 2px;
  font-size:14px;color:var(--ink-2);
  border-radius:6px;
  transition:color 180ms ease,padding-left 180ms ease;
}
.side-list a:hover{color:var(--brand);padding-left:6px;}
.side-list .arrow{color:var(--line-strong);transition:transform 180ms ease,color 180ms ease;}
.side-list a:hover .arrow{transform:translateX(3px);color:var(--accent);}
.side-card--contact{background:var(--brand-deep);color:#fff;border-color:var(--brand-deep);}
.side-card--contact h3{color:#fff;border-bottom-color:rgba(255,255,255,.22);}
.side-card--contact p{font-size:13.5px;line-height:1.7;color:rgba(255,255,255,.78);margin-bottom:6px;}
.side-card--contact strong{color:#fff;font-size:15px;display:block;margin-bottom:12px;word-break:break-all;}
.side-card--contact .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.5);}
.side-card--contact .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}

/* ============ CTA ============ */
.cta-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-l);
  box-shadow:var(--shadow-2);
  padding:var(--sp-6);
  display:flex;align-items:center;gap:var(--sp-5);
  position:relative;overflow:hidden;
}
.cta-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:8px;
  background:repeating-linear-gradient(135deg,var(--ink) 0 10px,var(--surface) 10px 20px);
  opacity:.9;
}
.cta-copy{flex:1 1 auto;padding-left:12px;min-width:0;}
.cta-copy h2{font-size:28px;margin-bottom:10px;}
.cta-copy p{font-size:15px;line-height:1.75;color:var(--ink-2);max-width:40em;}
.cta-actions{flex:0 0 auto;display:flex;flex-direction:column;gap:12px;min-width:220px;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:var(--sp-7);
  background:var(--surface-2);
  border-top:1px dashed var(--line-strong);
  padding-bottom:24px;
}
.footer-stripes{
  height:8px;width:100%;
  background:repeating-linear-gradient(135deg,var(--ink) 0 10px,var(--surface-2) 10px 20px);
  opacity:.86;
}
.footer-top{padding:var(--sp-6) 0 var(--sp-5);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:var(--sp-5);}
.footer-col h3{
  font-size:14px;font-weight:600;color:var(--ink);
  margin-bottom:14px;
}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li{margin-bottom:6px;}
.footer-col a,.footer-col span{
  font-size:14px;color:var(--ink-2);line-height:1.9;
}
.footer-col a:hover{
  color:var(--brand);
  text-decoration:underline;
  text-underline-offset:4px;
}
.footer-brand .logo{margin-bottom:14px;}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--ink-2);max-width:30em;}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  padding-top:18px;
  border-top:1px solid var(--line);
  font-size:13px;color:var(--ink-3);
}

/* ============ 固定转化条 ============ */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(255,255,255,.94);
  border-top:1px solid var(--line-strong);
  box-shadow:var(--shadow-2);
  backdrop-filter:blur(6px);
  padding:12px 0;
}
.sticky-inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.sticky-text{
  display:flex;align-items:center;gap:10px;
  font-size:14px;color:var(--ink-2);min-width:0;
}
.sticky-text .pulse{
  width:8px;height:8px;border-radius:50%;background:var(--accent);flex-shrink:0;
}
.sticky-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.sticky-close{
  width:32px;height:32px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--ink-3);background:var(--paper);
  border:1px solid var(--line);
  font-size:16px;line-height:1;
  transition:color 180ms ease,background-color 180ms ease;
}
.sticky-close:hover{color:var(--ink);background:var(--line);}
.sticky-bar.is-hidden{display:none;}

/* ============ 响应式 ============ */
@media screen and (max-width:1023px){
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-panel{flex-wrap:wrap;}
  .nav-cards{
    display:none;
    order:4;width:100%;
    flex-wrap:wrap;gap:6px;
    padding-top:10px;margin-top:6px;
    border-top:1px dashed var(--line-strong);
  }
  .nav-cards.is-open{display:flex;}
  .nav-card{flex:1 1 calc(33.333% - 6px);justify-content:flex-start;border-left:0;}
  .nav-card.is-active{border-left:0;box-shadow:inset 3px 0 0 var(--brand);}
  .nav-cta{margin-left:auto;height:40px;padding:0 16px;font-size:13px;}
  .hero-grid{flex-direction:column;gap:var(--sp-5);}
  .hero-media{flex:1 1 auto;max-width:100%;width:100%;}
  .hero-frame{aspect-ratio:16/9;}
  .band{grid-template-columns:1fr;}
  .band-item{border-left:0;border-top:1px dashed var(--line-strong);}
  .band-item:first-child{border-top:0;}
  .flow-grid{grid-template-columns:repeat(2,1fr);}
  .faq-layout{flex-direction:column;}
  .faq-side{position:static;max-width:100%;flex:1 1 auto;width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .cta-card{flex-direction:column;align-items:flex-start;padding:var(--sp-5);}
  .cta-actions{width:100%;min-width:0;}
  .section-title{font-size:26px;}
}
@media screen and (max-width:639px){
  body{padding-bottom:96px;}
  .grid-container.site-container{padding-left:20px;padding-right:20px;}
  .site-header{padding-top:10px;}
  .nav-panel{padding:8px 10px;gap:10px;border-radius:var(--radius-m);}
  .logo-text{font-size:14px;}
  .logo-sub{font-size:11px;}
  .nav-cta{display:none;}
  .nav-card{flex:1 1 calc(50% - 6px);font-size:13px;height:42px;}
  .section{padding-top:var(--sp-6);padding-bottom:var(--sp-6);}
  .hero-card{padding:var(--sp-4);}
  .hero-title{font-size:26px;}
  .hero-title .hl{font-size:.76em;}
  .hero-lead{font-size:15.5px;}
  .btn-row{gap:12px;}
  .btn{height:46px;padding:0 18px;font-size:14.5px;flex:1 1 100%;}
  .hero-ticket{display:none;}
  .band-item{padding:var(--sp-3) var(--sp-4);}
  .flow-grid{grid-template-columns:1fr;gap:var(--sp-3);}
  .flow-wrap{padding:var(--sp-4);}
  .matrix-card{padding:var(--sp-3) var(--sp-4);}
  .faq-item summary{font-size:15px;padding:14px 16px;min-height:56px;}
  .faq-body{padding:14px 16px 16px;}
  .footer-grid{grid-template-columns:1fr;gap:var(--sp-4);}
  .footer-bottom{flex-direction:column;gap:6px;font-size:12px;}
  .cta-copy h2{font-size:22px;}
  .sticky-inner{gap:10px;}
  .sticky-text{font-size:13px;}
  .sticky-text .long{display:none;}
  .sticky-actions .btn{padding:0 14px;font-size:13.5px;height:42px;flex:0 0 auto;}
}
@media screen and (max-width:360px){
  .nav-card{flex:1 1 100%;}
  .logo-sub{display:none;}
}