/* roulang page: index */
:root{
  --ink:#14211E;
  --ink-soft:#56635F;
  --paper:#F7F6F2;
  --paper-2:#EDF0EB;
  --brand:#1E3A34;
  --brand-deep:#10221E;
  --accent:#C4663A;
  --accent-soft:#F0DFD4;
  --line:#E1E5E0;
  --ok:#3F7D5B;
  --err:#B4453A;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(20,33,30,.05),0 8px 24px rgba(20,33,30,.06);
  --shadow-2:0 12px 32px rgba(20,33,30,.10);
  --container:1200px;
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-serif:"Noto Serif SC","Songti SC","SimSun",Georgia,serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.8;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--accent);}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-family:var(--font-serif);font-weight:700;letter-spacing:.01em;color:var(--ink);}
p{margin:0 0 1.1em;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.narrow{max-width:820px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--accent);font-weight:700;font-family:var(--font-sans);
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--accent);display:block;}
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--alt{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head h2{font-size:clamp(24px,3vw,36px);line-height:1.25;margin-bottom:14px;}
.section-head p{color:var(--ink-soft);margin:0;}
.rule{height:1px;background:var(--line);border:0;margin:0;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,246,242,.94);
  border-bottom:1px solid var(--line);
  transition:height .22s ease,background-color .22s ease,box-shadow .22s ease;
}
.site-header.is-compact{box-shadow:0 4px 18px rgba(20,33,30,.05);}
.nav-wrap{
  max-width:var(--container);margin:0 auto;padding:0 24px;
  height:72px;display:flex;align-items:center;justify-content:space-between;gap:18px;
  transition:height .22s ease;
}
.site-header.is-compact .nav-wrap{height:60px;}
.nav{display:flex;align-items:center;gap:26px;}
.nav--left{justify-content:flex-start;flex:1;}
.nav--right{justify-content:flex-end;flex:1;}
.logo{
  display:inline-flex;align-items:baseline;gap:2px;
  font-family:var(--font-serif);font-size:19px;font-weight:700;letter-spacing:.02em;
  color:var(--brand);white-space:nowrap;
}
.logo span{color:var(--accent);font-weight:700;}
.logo:hover{color:var(--brand);}
.nav-link{
  position:relative;font-size:15px;color:var(--ink-soft);padding:6px 2px;font-weight:500;
}
.nav-link::after{
  content:"";position:absolute;left:50%;right:50%;bottom:0;height:2px;background:var(--accent);
  transition:left .2s ease,right .2s ease;
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{left:0;right:0;}
.nav-link.is-active{color:var(--ink);font-weight:700;}
.nav-link.is-active::after{left:0;right:0;}
.nav-cta{display:flex;align-items:center;gap:12px;margin-left:6px;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius-btn);
  background:#fff;align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:1.6px;background:var(--brand);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:1.6px;background:var(--brand);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* drawer */
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,34,30,.5);opacity:0;visibility:hidden;
  transition:opacity .24s ease,visibility .24s ease;z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:320px;max-width:86vw;background:var(--paper);
  transform:translateX(102%);transition:transform .28s ease;z-index:90;
  padding:24px;display:flex;flex-direction:column;gap:8px;overflow-y:auto;
  border-left:1px solid var(--line);
}
.drawer.is-open{transform:translateX(0);}
.drawer-close{
  align-self:flex-end;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius-btn);
  background:#fff;cursor:pointer;font-size:20px;line-height:1;color:var(--brand);
}
.drawer .logo{margin:8px 0 18px;font-size:18px;}
.drawer a.d-link{
  padding:14px 4px;border-bottom:1px solid var(--line);font-size:16px;color:var(--ink);
}
.drawer a.d-link.is-active{color:var(--accent);font-weight:700;}
.drawer .drawer-note{font-size:13px;color:var(--ink-soft);margin-top:20px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--radius-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;line-height:1.2;min-height:46px;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--brand);color:var(--paper);}
.btn-primary:hover{background:var(--accent);color:#fff;transform:translateY(-1px);}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand);}
.btn-ghost:hover{background:var(--accent-soft);border-color:var(--accent);color:var(--accent);}
.btn-sm{padding:10px 18px;min-height:40px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--brand);
}
.link-arrow svg{transition:transform .18s ease;}
.link-arrow:hover{color:var(--accent);}
.link-arrow:hover svg{transform:translateX(4px);}

/* ---------- hero ---------- */
.hero{
  position:relative;padding:104px 0 88px;
  background:
    linear-gradient(180deg,rgba(247,246,242,.94) 0%,rgba(247,246,242,.96) 55%,rgba(247,246,242,1) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:6fr 6fr;gap:56px;align-items:center;}
.hero h1{
  font-size:clamp(32px,5vw,54px);line-height:1.12;letter-spacing:-.01em;margin-bottom:18px;
}
.hero .lead{font-size:17.5px;color:var(--ink-soft);max-width:34em;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px;}
.hero-metrics{
  display:grid;grid-template-columns:repeat(3,1fr);gap:0;
  border-top:1px solid var(--line);padding-top:22px;
}
.hero-metrics div{padding-right:18px;}
.hero-metrics div + div{border-left:1px solid var(--line);padding-left:18px;}
.hero-metrics strong{
  display:block;font-family:var(--font-serif);font-size:26px;line-height:1.2;color:var(--brand);
  font-variant-numeric:tabular-nums;
}
.hero-metrics span{font-size:13px;color:var(--ink-soft);}
.hero-figure{
  border-radius:var(--radius-img);overflow:hidden;box-shadow:var(--shadow-1);
  border:1px solid var(--line);background:#fff;
}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);
  border-radius:999px;padding:8px 16px;font-size:13px;color:var(--ink-soft);margin-bottom:22px;
}
.hero-badge i{width:7px;height:7px;border-radius:50%;background:var(--ok);display:block;}

/* ---------- pain list ---------- */
.pain-list{border-top:1px solid var(--line);}
.pain-item{
  display:grid;grid-template-columns:88px 1fr;gap:28px;padding:28px 0;
  border-bottom:1px solid var(--line);align-items:start;
}
.pain-num{font-family:var(--font-serif);font-size:34px;line-height:1;color:var(--accent-soft);}
.pain-item h3{font-size:19px;margin-bottom:8px;font-family:var(--font-sans);font-weight:700;}
.pain-item p{color:var(--ink-soft);margin:0;font-size:15.5px;}

/* ---------- solution cards ---------- */
.solution-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;}
.solution-col{display:flex;flex-direction:column;gap:24px;}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;transition:box-shadow .2s ease,transform .2s ease;
}
.card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.card:hover .card-img img{transform:scale(1.03);}
.card-img{overflow:hidden;background:var(--paper-2);}
.card-img img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .32s ease;}
.card-body{padding:24px 26px 26px;}
.card-body h3{font-size:21px;margin-bottom:10px;}
.card-body p{color:var(--ink-soft);font-size:15.5px;margin-bottom:16px;}
.card-list{display:flex;flex-direction:column;gap:9px;margin-bottom:20px;}
.card-list li{position:relative;padding-left:20px;font-size:15px;color:var(--ink-soft);}
.card-list li::before{
  content:"";position:absolute;left:0;top:11px;width:7px;height:7px;background:var(--accent-soft);
  border:1px solid var(--accent);border-radius:2px;
}
.badge{
  display:inline-flex;align-items:center;gap:6px;background:var(--accent-soft);color:var(--brand);
  font-size:12px;font-weight:600;border-radius:999px;padding:4px 12px;letter-spacing:.02em;
}
.badge i{width:4px;height:4px;border-radius:50%;background:var(--accent);display:block;}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);}
.stat{padding:8px 26px;border-left:1px solid var(--line);}
.stat:first-child{border-left:0;padding-left:0;}
.stat strong{
  display:block;font-family:var(--font-serif);font-size:clamp(38px,4.4vw,54px);line-height:1.05;
  color:var(--brand);font-variant-numeric:tabular-nums;
}
.stat strong em{font-style:normal;font-size:.5em;color:var(--accent);margin-left:4px;}
.stat span{display:block;color:var(--ink-soft);font-size:14.5px;margin-top:10px;}

/* ---------- posts ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-1);display:flex;flex-direction:column;transition:box-shadow .2s ease,transform .2s ease;
}
.post-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.post-card:hover .post-thumb img{transform:scale(1.03);}
.post-thumb{overflow:hidden;background:var(--paper-2);}
.post-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .32s ease;}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-body h3{font-size:17px;line-height:1.45;font-family:var(--font-sans);font-weight:700;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-body p{font-size:14.5px;color:var(--ink-soft);margin:0;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.post-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:12px;border-top:1px solid var(--line);}
.post-time{font-size:13px;color:var(--ink-soft);}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius-card);background:#fff;
  padding:56px 24px;text-align:center;color:var(--ink-soft);
}
.empty-state svg{margin:0 auto 14px;display:block;color:var(--ink-soft);}
.empty-state a{color:var(--accent);font-weight:600;}

/* ---------- faq ---------- */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start;}
.faq-list{border-top:1px solid var(--line);}
.faq-list details{border-bottom:1px solid var(--line);}
.faq-list summary{
  list-style:none;cursor:pointer;padding:22px 40px 22px 0;position:relative;
  font-size:17px;font-weight:700;color:var(--ink);
}
.faq-list summary::-webkit-details-marker{display:none;}
.faq-list summary::after{
  content:"";position:absolute;right:8px;top:30px;width:12px;height:12px;
  border-right:1.6px solid var(--accent);border-bottom:1.6px solid var(--accent);
  transform:rotate(45deg);transition:transform .2s ease;
}
.faq-list details[open] summary::after{transform:rotate(225deg);}
.faq-list .faq-a{padding:0 40px 24px 0;color:var(--ink-soft);font-size:15px;line-height:1.8;}

/* ---------- form ---------- */
.form-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start;}
.form-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:32px;box-shadow:var(--shadow-1);
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;color:var(--ink-soft);margin-bottom:7px;font-weight:600;}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:var(--radius-btn);
  background:var(--paper);transition:border-color .18s ease,background-color .18s ease;
}
.field textarea{min-height:112px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--accent);background:#fff;
}
.field:focus-within label{color:var(--accent);}
.field.has-error input,.field.has-error textarea{border-color:var(--err);}
.field .err-msg{display:none;color:var(--err);font-size:12.5px;margin-top:6px;}
.field.has-error .err-msg{display:block;}
.checkline{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--ink-soft);margin:6px 0 20px;}
.checkline input{margin-top:4px;}
.privacy-note{font-size:12.5px;color:var(--ink-soft);margin-top:14px;line-height:1.7;}
.form-ok{
  display:none;border:1px solid var(--ok);color:var(--ok);border-radius:var(--radius-btn);
  padding:12px 16px;font-size:14px;margin-bottom:18px;background:rgba(63,125,91,.06);
}
.form-ok.is-on{display:block;}

/* ---------- cta strip ---------- */
.cta-strip{
  background:var(--brand-deep);color:#EAEFEA;border-radius:var(--radius-card);
  padding:56px;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-strip h2{color:#fff;font-size:clamp(22px,2.6vw,32px);margin-bottom:10px;}
.cta-strip p{color:rgba(234,239,234,.76);margin:0;max-width:44em;}
.cta-strip .btn-primary{background:var(--accent);color:#fff;}
.cta-strip .btn-primary:hover{background:#fff;color:var(--brand-deep);}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-deep);color:rgba(234,239,234,.72);padding:64px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(234,239,234,.14);}
.footer-brand{font-family:var(--font-serif);font-size:19px;color:#fff;margin-bottom:14px;display:block;}
.footer-brand span{color:var(--accent);}
.site-footer p{font-size:14px;line-height:1.8;margin:0;}
.footer-col h4{font-family:var(--font-sans);font-size:14px;color:#fff;margin-bottom:16px;letter-spacing:.04em;}
.footer-col a{display:block;font-size:14px;color:rgba(234,239,234,.72);padding:5px 0;}
.footer-col a:hover{color:var(--accent);}
.footer-bottom{
  display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;
  padding-top:22px;font-size:12.5px;color:rgba(234,239,234,.55);
}

/* ---------- modal ---------- */
.modal-mask{
  position:fixed;inset:0;background:rgba(16,34,30,.55);z-index:100;
  display:flex;align-items:center;justify-content:center;padding:24px;
  opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease;
}
.modal-mask.is-open{opacity:1;visibility:visible;}
.modal{
  background:var(--paper);border-radius:var(--radius-card);width:520px;max-width:100%;
  padding:32px;position:relative;box-shadow:var(--shadow-2);max-height:90vh;overflow-y:auto;
}
.modal h3{font-size:21px;margin-bottom:8px;}
.modal .modal-sub{font-size:14px;color:var(--ink-soft);margin-bottom:22px;}
.modal-close{
  position:absolute;top:16px;right:16px;width:40px;height:40px;border:1px solid var(--line);
  border-radius:var(--radius-btn);background:#fff;cursor:pointer;color:var(--brand);font-size:18px;line-height:1;
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .34s ease-out,transform .34s ease-out;}
.reveal.is-visible{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{transform:none;transition:opacity .3s ease;}
  html{scroll-behavior:auto;}
  .card:hover,.post-card:hover,.btn-primary:hover{transform:none;}
}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 22px;}
}
@media (max-width:1023px){
  .nav{display:none;}
  .nav-toggle{display:flex;}
  .hero{padding:76px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-figure{order:-1;}
  .solution-grid{grid-template-columns:1fr;}
  .stats{grid-template-columns:repeat(2,1fr);gap:28px 0;}
  .stat{border-left:0;padding:0;}
  .stat:nth-child(even){border-left:1px solid var(--line);padding-left:24px;}
  .post-grid{grid-template-columns:repeat(2,1fr);}
  .faq-grid,.form-grid{grid-template-columns:1fr;gap:36px;}
  .section{padding:72px 0;}
  .section--tight{padding:56px 0;}
  .cta-strip{padding:40px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .nav-wrap{padding:0 18px;height:62px;}
  .site-header.is-compact .nav-wrap{height:56px;}
  .logo{font-size:16px;}
  .nav-cta .btn{display:none;}
  .hero{padding:56px 0 48px;}
  .hero h1{font-size:clamp(28px,7.4vw,36px);}
  .hero .lead{font-size:16px;}
  .hero-actions .btn{flex:1 1 100%;}
  .hero-metrics{grid-template-columns:1fr;gap:16px;}
  .hero-metrics div + div{border-left:0;padding-left:0;border-top:1px solid var(--line);padding-top:16px;}
  .hero-metrics div{padding-right:0;}
  .pain-item{grid-template-columns:52px 1fr;gap:16px;padding:22px 0;}
  .pain-num{font-size:26px;}
  .post-grid{grid-template-columns:1fr;}
  .stats{grid-template-columns:repeat(2,1fr);}
  .stat:nth-child(even){border-left:1px solid var(--line);padding-left:16px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:32px;}
  .card-body{padding:20px;}
  .form-panel{padding:22px;}
  .cta-strip{padding:30px 24px;}
  .cta-strip .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .modal{padding:24px;width:100%;}
  .modal-mask{align-items:flex-end;padding:0;}
  .modal{border-radius:var(--radius-card) var(--radius-card) 0 0;}
  .faq-list summary{font-size:16px;padding-right:34px;}
  .faq-list .faq-a{padding-right:12px;}
}
@media (max-width:480px){
  .logo{font-size:15px;}
  .stat strong{font-size:34px;}
  .eyebrow{letter-spacing:.12em;}
}

/* roulang page: article */
:root{
  --ink:#14211E;
  --ink-soft:#56635F;
  --paper:#F7F6F2;
  --paper-2:#EDF0EB;
  --brand:#1E3A34;
  --brand-deep:#10221E;
  --accent:#C4663A;
  --accent-soft:#F0DFD4;
  --line:#E1E5E0;
  --ok:#3F7D5B;
  --err:#B4453A;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(20,33,30,.05),0 8px 24px rgba(20,33,30,.06);
  --shadow-2:0 12px 32px rgba(20,33,30,.10);
  --container:1200px;
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  --font-serif:"Noto Serif SC","Songti SC","SimSun",Georgia,serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--accent);}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:700;color:var(--ink);margin:0;letter-spacing:.005em;}
p{margin:0;}
ul,ol{margin:0;padding:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:72px 0;}
.section--tight{padding:48px 0;}
.section--alt{background:var(--paper-2);}
.section-head{max-width:760px;margin-bottom:32px;}
.section-head .eyebrow{display:inline-block;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);font-weight:700;margin-bottom:10px;}
.section-head h2{font-size:clamp(24px,3vw,36px);line-height:1.25;}
.section-head p{margin-top:12px;color:var(--ink-soft);font-size:16px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);border:1px solid transparent;
  padding:12px 22px;font-size:15px;font-weight:600;line-height:1.2;
  cursor:pointer;min-height:44px;
  transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--brand);color:var(--paper);}
.btn-primary:hover{background:var(--accent);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-1);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand);}
.btn-ghost:hover{background:var(--accent-soft);color:var(--brand);}
.btn-sm{padding:9px 16px;font-size:14px;min-height:38px;}
.btn-text{background:none;border:0;padding:0;color:var(--brand);font-weight:600;min-height:auto;cursor:pointer;display:inline-flex;align-items:center;gap:6px;}
.btn-text .arrow{transition:transform .18s ease;}
.btn-text:hover{color:var(--accent);}
.btn-text:hover .arrow{transform:translateX(4px);}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- 徽章 / 标签 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;background:var(--accent-soft);color:var(--brand);border-radius:999px;padding:4px 12px;font-size:12px;font-weight:600;line-height:1.6;}
.badge .dot{width:4px;height:4px;border-radius:50%;background:var(--accent);display:inline-block;}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;list-style:none;}
.tag{display:inline-block;border:1px solid var(--line);background:#fff;border-radius:999px;padding:6px 14px;font-size:13px;color:var(--ink-soft);transition:border-color .18s,color .18s,background .18s;}
.tag:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-soft);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,246,242,.96);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease,background .2s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(20,33,30,.06);}
.nav-wrap{
  max-width:var(--container);margin:0 auto;padding:0 24px;
  height:72px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px;
  transition:height .2s ease;
}
.site-header.is-scrolled .nav-wrap{height:60px;}
.nav{display:flex;align-items:center;gap:26px;}
.nav--right{justify-content:flex-end;}
.nav-link{position:relative;font-size:15px;color:var(--ink);padding:6px 0;white-space:nowrap;}
.nav-link::after{content:"";position:absolute;left:50%;right:50%;bottom:0;height:2px;background:var(--accent);transition:left .2s ease,right .2s ease;}
.nav-link:hover{color:var(--accent);}
.nav-link:hover::after,.nav-link.is-active::after{left:0;right:0;}
.nav-link.is-active{font-weight:700;color:var(--brand);}
.logo{
  font-family:var(--font-serif);font-size:20px;font-weight:700;color:var(--brand);
  white-space:nowrap;letter-spacing:.01em;text-align:center;
}
.logo span{color:var(--accent);font-weight:600;}
.logo:hover{color:var(--brand);}
.nav-cta{display:inline-flex;}
.nav-toggle{
  display:none;width:44px;height:44px;border:0;background:transparent;border-radius:10px;
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{position:relative;display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;transition:background .2s ease;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:20px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease,top .2s ease;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ---------- 文章头 ---------- */
.article-hero{background:linear-gradient(180deg,var(--paper-2) 0%,var(--paper) 100%);border-bottom:1px solid var(--line);padding:40px 0 44px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-soft);margin-bottom:20px;}
.crumb a{color:var(--ink-soft);}
.crumb a:hover{color:var(--accent);}
.crumb .sep{color:#A9B2AE;}
.crumb .current{color:var(--ink);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-hero h1{font-size:clamp(26px,3.6vw,42px);line-height:1.28;max-width:960px;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:20px;font-size:14px;color:var(--ink-soft);}
.article-meta .divider{width:1px;height:14px;background:var(--line);}

/* ---------- 布局 ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;align-items:start;padding:56px 0 72px;}

/* ---------- 正文 ---------- */
.article-body{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:40px 44px;box-shadow:var(--shadow-1);
  font-size:17px;line-height:1.85;color:#23302C;
  max-width:100%;
}
.article-body>*+*{margin-top:1.1em;}
.article-body p{font-size:17px;line-height:1.85;color:#23302C;}
.article-body h2{
  font-size:clamp(21px,2.2vw,26px);line-height:1.35;margin-top:44px;padding-left:14px;
  border-left:4px solid var(--accent);scroll-margin-top:96px;
}
.article-body h3{font-size:20px;line-height:1.4;margin-top:32px;scroll-margin-top:96px;}
.article-body h4{font-size:17px;margin-top:24px;}
.article-body ul,.article-body ol{padding-left:22px;color:#23302C;}
.article-body li{margin:.45em 0;}
.article-body ul{list-style:square;}
.article-body ul li::marker{color:var(--accent);}
.article-body ol{list-style:decimal;}
.article-body ol li::marker{color:var(--accent);font-weight:700;}
.article-body a{color:var(--brand);border-bottom:1px solid var(--accent-soft);}
.article-body a:hover{color:var(--accent);}
.article-body strong{color:var(--ink);font-weight:700;}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;background:var(--paper-2);border-left:4px solid var(--brand);
  border-radius:0 var(--radius-img) var(--radius-img) 0;color:var(--ink-soft);
}
.article-body blockquote p{color:var(--ink-soft);}
.article-body img{border-radius:var(--radius-img);margin:22px auto;box-shadow:var(--shadow-1);}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--ink-soft);text-align:center;margin-top:10px;}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:22px 0;border:1px solid var(--line);}
.article-body th,.article-body td{border-bottom:1px solid var(--line);padding:12px 14px;text-align:left;}
.article-body thead th{background:var(--paper-2);font-weight:700;color:var(--ink);}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}
.article-body code{background:var(--paper-2);border-radius:6px;padding:2px 6px;font-size:15px;}

/* ---------- 空态 ---------- */
.empty-state{
  border:1px dashed var(--line);border-radius:64px;padding:64px 32px;text-align:center;background:#fff;
}
.empty-state svg{width:44px;height:44px;color:#A9B2AE;margin:0 auto 16px;}
.empty-state p{font-size:17px;color:var(--ink-soft);margin-bottom:16px;}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow-1);}
.side-card h3{font-size:16px;margin-bottom:14px;}
.side-card p{font-size:14px;color:var(--ink-soft);line-height:1.7;}
.toc-list{list-style:none;display:flex;flex-direction:column;gap:2px;}
.toc-list a{display:block;font-size:14px;color:var(--ink-soft);padding:6px 0 6px 12px;border-left:2px solid var(--line);line-height:1.5;}
.toc-list a:hover,.toc-list a.is-current{color:var(--accent);border-left-color:var(--accent);}
.side-links{list-style:none;display:flex;flex-direction:column;}
.side-links li+li{border-top:1px solid var(--line);}
.side-links a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 0;font-size:14px;color:var(--ink);}
.side-links a:hover{color:var(--accent);}
.side-links .arrow{color:var(--accent);}
.side-card--cta{background:var(--brand);border-color:var(--brand);color:var(--paper);}
.side-card--cta h3{color:#fff;}
.side-card--cta p{color:rgba(247,246,242,.78);}
.side-card--cta .btn{margin-top:16px;width:100%;background:var(--accent);color:#fff;}
.side-card--cta .btn:hover{background:#fff;color:var(--brand);}

/* ---------- 文章尾部 ---------- */
.article-foot{margin-top:36px;padding-top:28px;border-top:1px solid var(--line);}
.article-foot h2{font-size:16px;font-family:var(--font-sans);font-weight:700;margin-bottom:14px;color:var(--ink-soft);}
.foot-nav{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}

/* ---------- 推荐卡 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.card:hover .card-media img{transform:scale(1.03);}
.card:active{transform:translateY(1px);}
.card-media{aspect-ratio:16/9;overflow:hidden;background:var(--paper-2);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-body h3{font-size:19px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-body p{font-size:14px;color:var(--ink-soft);line-height:1.7;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--ink-soft);}

/* ---------- CTA 条 ---------- */
.cta-band{
  position:relative;color:var(--paper);border-radius:var(--radius-card);overflow:hidden;
  padding:52px 48px;background:var(--brand-deep);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity:.26;
}
.cta-band-inner{position:relative;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,32px);line-height:1.3;}
.cta-band p{color:rgba(247,246,242,.8);margin-top:10px;font-size:15px;max-width:620px;}
.cta-band .btn-primary{background:var(--accent);color:#fff;}
.cta-band .btn-primary:hover{background:#fff;color:var(--brand);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-deep);color:rgba(247,246,242,.82);margin-top:72px;padding:60px 0 26px;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand{display:block;font-family:var(--font-serif);font-size:19px;font-weight:700;color:#fff;margin-bottom:14px;}
.footer-brand span{color:var(--accent-soft);font-weight:600;}
.site-footer p{line-height:1.8;}
.footer-col h4{color:#fff;font-size:15px;font-family:var(--font-sans);font-weight:700;margin-bottom:14px;}
.footer-col a{display:block;color:rgba(247,246,242,.78);padding:5px 0;}
.footer-col a:hover{color:var(--accent-soft);}
.footer-col .btn-primary{background:var(--accent);color:#fff;}
.footer-col .btn-primary:hover{background:#fff;color:var(--brand);}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(247,246,242,.14);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(247,246,242,.6);
}

/* ---------- 弹层 ---------- */
.modal{position:fixed;inset:0;z-index:200;display:none;}
.modal.is-open{display:block;}
.modal-scrim{position:absolute;inset:0;background:rgba(16,34,30,.5);}
.modal-panel{
  position:relative;width:520px;max-width:92vw;margin:6vh auto 0;background:var(--paper);
  border-radius:var(--radius-card);padding:32px;box-shadow:var(--shadow-2);max-height:88vh;overflow:auto;
  animation:modalIn .26s ease-out;
}
@keyframes modalIn{from{opacity:0;transform:translateY(12px);}to{opacity:1;transform:none;}}
.modal-close{
  position:absolute;top:14px;right:14px;width:40px;height:40px;border:1px solid var(--line);
  background:#fff;border-radius:10px;cursor:pointer;font-size:18px;line-height:1;color:var(--ink-soft);
}
.modal-close:hover{border-color:var(--accent);color:var(--accent);}
.modal-panel h2{font-size:22px;margin-bottom:8px;}
.modal-panel .modal-desc{font-size:14px;color:var(--ink-soft);margin-bottom:22px;}
.form-field{margin-bottom:16px;}
.form-field label{display:block;font-size:13px;color:var(--ink-soft);margin-bottom:6px;transition:color .18s;}
.form-field input,.form-field select,.form-field textarea{
  width:100%;border:1px solid var(--line);border-radius:10px;background:#fff;
  padding:11px 13px;font-size:15px;line-height:1.5;transition:border-color .18s ease,box-shadow .18s ease;
}
.form-field textarea{resize:vertical;min-height:96px;}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(196,102,58,.14);
}
.form-field.is-focus label{color:var(--accent);}
.form-field.has-error input,.form-field.has-error textarea,.form-field.has-error select{border-color:var(--err);}
.form-error{display:none;font-size:12px;color:var(--err);margin-top:6px;}
.form-field.has-error .form-error{display:block;}
.form-check{display:flex;align-items:flex-start;gap:8px;font-size:13px;color:var(--ink-soft);margin:6px 0 18px;}
.form-check input{margin-top:4px;}
.form-note{font-size:12px;color:var(--ink-soft);margin-top:12px;line-height:1.7;}
.form-success{
  display:none;margin-top:14px;border:1px solid var(--ok);color:var(--ok);
  border-radius:10px;padding:10px 14px;font-size:14px;background:rgba(63,125,91,.06);
}
.form-success.is-visible{display:block;}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .34s ease-out,transform .34s ease-out;}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{transform:none;transition:opacity .2s linear;}
  .card,.btn{transition:none;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .article-side{position:static;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;}
}
@media (max-width:900px){
  .nav-wrap{height:64px;grid-template-columns:auto 1fr auto;padding:0 16px;gap:10px;}
  .site-header.is-scrolled .nav-wrap{height:64px;}
  .nav-toggle{display:flex;grid-column:1;grid-row:1;}
  .logo{grid-column:2;grid-row:1;justify-self:center;font-size:17px;}
  .nav--left{
    display:none;grid-column:1/-1;grid-row:2;flex-direction:column;align-items:stretch;gap:0;
    padding:6px 0 10px;border-top:1px solid var(--line);margin-top:8px;
  }
  .nav--left .nav-link{padding:12px 0;font-size:15px;border-bottom:1px solid var(--line);}
  .nav--left .nav-link::after{display:none;}
  .nav--right{grid-column:3;grid-row:1;gap:0;}
  .nav--right .nav-link{display:none;}
  .nav--right .nav-cta .btn{padding:8px 12px;font-size:13px;min-height:38px;}
  .site-header.is-open .nav--left{display:flex;}
  .site-header.is-open .nav--right{
    grid-column:1/-1;grid-row:3;flex-direction:column;align-items:stretch;
    padding:6px 0 14px;
  }
  .site-header.is-open .nav--right .nav-link{display:block;padding:12px 0;border-bottom:1px solid var(--line);}
  .site-header.is-open .nav--right .nav-link::after{display:none;}
  .site-header.is-open .nav--right .nav-cta{margin-top:14px;}
  .site-header.is-open .nav--right .nav-cta .btn{width:100%;padding:12px 16px;font-size:15px;min-height:44px;}
  .site-header.is-open .nav-toggle span{background:transparent;}
  .site-header.is-open .nav-toggle span::before{top:0;transform:rotate(45deg);}
  .site-header.is-open .nav-toggle span::after{top:0;transform:rotate(-45deg);}
  .logo{white-space:normal;line-height:1.2;}
  .section{padding:56px 0;}
  .article-body{padding:28px 22px;font-size:16px;}
  .article-body p{font-size:16px;}
  .cta-band{padding:40px 26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:640px){
  .container{padding:0 18px;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .article-hero{padding:28px 0 32px;}
  .article-layout{padding:36px 0 48px;}
  .crumb .current{max-width:200px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .modal-panel{margin:auto 0 0;width:100%;max-width:100%;border-radius:14px 14px 0 0;max-height:92vh;}
  .modal{align-items:flex-end;display:none;}
  .modal.is-open{display:flex;}
}
@media (max-width:480px){
  .logo{font-size:15px;}
  .nav--right .nav-cta .btn{padding:7px 10px;font-size:12px;}
  .article-body h2{font-size:20px;padding-left:10px;}
}

/* roulang page: category1 */
:root{
  --ink:#14211E;
  --ink-soft:#56635F;
  --paper:#F7F6F2;
  --paper-2:#EDF0EB;
  --brand:#1E3A34;
  --brand-deep:#10221E;
  --accent:#C4663A;
  --accent-soft:#F0DFD4;
  --line:#E1E5E0;
  --ok:#3F7D5B;
  --err:#B4453A;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(20,33,30,.05),0 8px 24px rgba(20,33,30,.06);
  --shadow-2:0 12px 32px rgba(20,33,30,.10);
  --container:1200px;
  --serif:"Noto Serif SC","Source Han Serif SC",Georgia,"PingFang SC",serif;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,Segoe UI,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--ink);text-decoration:none;transition:color .18s ease;}
button,input,select,textarea{font-family:inherit;}
h1,h2,h3,h4{font-family:var(--serif);font-weight:700;line-height:1.25;margin:0 0 14px;letter-spacing:.01em;}
h1{font-size:clamp(28px,4vw,44px);line-height:1.18;color:var(--brand-deep);}
h2{font-size:clamp(22px,2.6vw,30px);}
h3{font-size:20px;line-height:1.4;}
h4{font-size:17px;line-height:1.45;}
p{margin:0 0 16px;}
ul{margin:0;padding:0;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
section[id],div[id]{scroll-margin-top:96px;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,246,242,.95);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(20,33,30,.07);}
.nav-wrap{
  max-width:1280px;margin:0 auto;padding:0 24px;
  height:72px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:18px;
  transition:height .22s ease;
}
.site-header.is-scrolled .nav-wrap{height:60px;}
.nav{display:flex;align-items:center;gap:26px;}
.nav--left{justify-content:flex-start;}
.nav--right{justify-content:flex-end;}
.nav-link{
  position:relative;font-size:15px;color:var(--ink-soft);padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:50%;right:50%;bottom:0;height:2px;
  background:var(--accent);transition:left .22s ease,right .22s ease;
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after,.nav-link.is-active::after{left:0;right:0;}
.nav-link.is-active{color:var(--brand);font-weight:700;}
.logo{
  font-family:var(--serif);font-size:20px;font-weight:700;color:var(--brand);
  white-space:nowrap;letter-spacing:.01em;
}
.logo span{font-weight:400;color:var(--accent);}
.nav-cta{display:inline-flex;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);
  background:#fff;border-radius:10px;align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  display:block;width:18px;height:2px;background:var(--brand);position:relative;content:"";
}
.nav-toggle span::before{position:absolute;top:-6px;left:0;}
.nav-toggle span::after{position:absolute;top:6px;left:0;}
.nav-toggle:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);font-size:15px;font-weight:600;
  padding:11px 22px;border:1px solid transparent;cursor:pointer;
  transition:background-color .18s ease,color .18s ease,transform .18s ease,border-color .18s ease,box-shadow .18s ease;
  text-align:center;
}
.btn-primary{background:var(--brand);color:#F7F6F2;}
.btn-primary:hover{background:var(--accent);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand);}
.btn-ghost:hover{background:var(--accent-soft);border-color:var(--accent);color:var(--accent);}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

/* ============ 分类页页头 ============ */
.cat-hero{padding:52px 0 40px;border-bottom:1px solid var(--line);background:var(--paper);}
.breadcrumb{font-size:13px;color:var(--ink-soft);margin-bottom:18px;display:flex;flex-wrap:wrap;align-items:center;}
.breadcrumb a{color:var(--ink-soft);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb i{font-style:normal;margin:0 8px;color:#A9B3AF;}
.cat-hero h1{max-width:900px;margin-bottom:16px;}
.cat-hero .lead{max-width:760px;font-size:17px;color:var(--ink-soft);line-height:1.85;}
.hero-anchors{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.chip{
  display:inline-flex;align-items:center;font-size:14px;color:var(--ink-soft);
  border:1px solid var(--line);background:#fff;border-radius:999px;padding:7px 16px;
  transition:all .18s ease;
}
.chip:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-soft);}

/* ============ 分类页主体 ============ */
.cat-body{padding:64px 0 20px;}
.cat-layout{display:grid;grid-template-columns:248px minmax(0,1fr);gap:56px;align-items:start;}
.anchor-nav{position:sticky;top:104px;}
.anchor-title{
  font-size:12px;letter-spacing:.18em;color:var(--ink-soft);
  text-transform:uppercase;margin-bottom:14px;font-family:system-ui,sans-serif;
}
.anchor-nav ul{border-left:1px solid var(--line);}
.anchor-nav li{list-style:none;}
.anchor-nav a{
  display:block;position:relative;padding:10px 0 10px 16px;
  font-size:14.5px;color:var(--ink-soft);
}
.anchor-nav a::before{
  content:"";position:absolute;left:-1px;top:12px;bottom:12px;width:2px;background:transparent;
  transition:background-color .18s ease;
}
.anchor-nav a:hover{color:var(--accent);}
.anchor-nav a:hover::before{background:var(--accent);}
.anchor-tip{
  margin-top:26px;padding:18px;border:1px solid var(--line);border-radius:var(--radius-card);
  background:#fff;box-shadow:var(--shadow-1);
}
.anchor-tip p{font-size:13.5px;color:var(--ink-soft);line-height:1.7;margin-bottom:14px;}

.block + .block{margin-top:56px;padding-top:56px;border-top:1px solid var(--line);}
.block-num{
  display:block;font-family:var(--serif);font-size:14px;font-weight:700;
  color:var(--accent);letter-spacing:.16em;margin-bottom:10px;
}
.block h2{margin-bottom:14px;}
.block > p{font-size:16.5px;line-height:1.85;color:var(--ink);max-width:760px;}
.block > p.muted{color:var(--ink-soft);}
.figure{
  margin:26px 0 8px;border:1px solid var(--line);border-radius:var(--radius-img);
  overflow:hidden;background:var(--paper-2);
}
.figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.figure figcaption{font-size:13px;color:var(--ink-soft);padding:12px 16px;background:var(--paper);border-top:1px solid var(--line);}

.point-list{list-style:none;margin:22px 0 0;display:grid;gap:13px;max-width:800px;}
.point-list li{display:flex;gap:12px;align-items:flex-start;font-size:16px;color:var(--ink-soft);line-height:1.75;}
.point-list li::before{
  content:"";flex:0 0 auto;width:8px;height:8px;border-radius:2px;background:var(--accent);margin-top:11px;
}

.step-list{list-style:none;margin:26px 0 0;}
.step-list li{
  display:grid;grid-template-columns:52px minmax(0,1fr);gap:18px;
  padding:20px 0;border-top:1px solid var(--line);
}
.step-list li:first-child{border-top:none;padding-top:6px;}
.step-num{font-family:var(--serif);font-size:22px;font-weight:700;color:var(--accent);line-height:1.3;}
.step-body h4{margin-bottom:6px;color:var(--brand-deep);}
.step-body p{margin:0;font-size:15.5px;color:var(--ink-soft);line-height:1.8;}

.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:26px;}
.media-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.media-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.media-card__img{overflow:hidden;background:var(--paper-2);}
.media-card__img img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease;}
.media-card:hover .media-card__img img{transform:scale(1.03);}
.media-card__body{padding:24px;}
.media-card__body h3{margin:12px 0 10px;font-size:19px;}
.media-card__body p{font-size:15px;color:var(--ink-soft);line-height:1.8;margin-bottom:12px;}
.mini-list{list-style:none;display:grid;gap:8px;margin-top:6px;}
.mini-list li{position:relative;padding-left:16px;font-size:14px;color:var(--ink-soft);line-height:1.7;}
.mini-list li::before{
  content:"";position:absolute;left:0;top:10px;width:5px;height:5px;border-radius:50%;background:var(--accent);
}
.badge{
  display:inline-flex;align-items:center;gap:6px;background:var(--accent-soft);
  color:var(--brand);font-size:12px;font-weight:700;padding:4px 11px;border-radius:999px;
  letter-spacing:.02em;
}
.info-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:26px;}
.info-card{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px;transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.info-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-1);background:#fff;}
.info-card h4{margin-bottom:10px;color:var(--brand-deep);}
.info-card p:last-child{margin-bottom:0;}
.info-card p{font-size:15px;color:var(--ink-soft);line-height:1.8;}

/* ============ FAQ ============ */
.faq-section{padding:64px 0 0;}
.faq-head{max-width:640px;margin-bottom:26px;}
.faq-head p{color:var(--ink-soft);font-size:16px;margin:0;}
.faq-list{border-top:1px solid var(--line);max-width:900px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:20px;align-items:center;
  padding:22px 0;font-family:var(--serif);font-size:17px;font-weight:700;color:var(--brand-deep);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-family:var(--serif);font-size:22px;line-height:1;color:var(--accent);
  transition:transform .22s ease;flex:0 0 auto;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item summary:focus-visible{outline:2px solid var(--accent);outline-offset:3px;}
.faq-item p{padding:0 0 22px;margin:0;color:var(--ink-soft);font-size:15.5px;line-height:1.8;max-width:760px;}

/* ============ CTA ============ */
.cta-band{
  background:var(--brand-deep);color:#F2F4F1;border-radius:18px;
  padding:48px;margin:72px 0 0;
  display:grid;grid-template-columns:1.5fr .9fr;gap:32px;align-items:center;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,30px);margin-bottom:12px;}
.cta-band p{color:#AEBAB5;font-size:15.5px;margin:0;max-width:520px;line-height:1.8;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;justify-content:flex-end;}
.cta-band .btn-ghost{border-color:rgba(255,255,255,.4);color:#F2F4F1;}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.08);border-color:var(--accent);color:var(--accent);}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-deep);color:#C9D2CE;padding:60px 0 28px;margin-top:88px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;}
.footer-brand{
  display:block;font-family:var(--serif);font-size:19px;font-weight:700;color:#fff;margin-bottom:12px;
}
.footer-brand span{font-weight:400;color:var(--accent);}
.site-footer p{font-size:14px;line-height:1.8;color:#9EAAA5;margin-bottom:0;}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:14px;font-family:var(--sans);font-weight:700;letter-spacing:.04em;}
.footer-col a{display:block;font-size:14px;color:#9EAAA5;padding:5px 0;}
.footer-col a:hover{color:var(--accent);}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  font-size:13px;color:#86928D;
}

/* ============ 弹层与表单 ============ */
.modal{position:fixed;inset:0;z-index:120;display:none;}
.modal.is-open{display:block;}
.modal__mask{position:absolute;inset:0;background:rgba(16,34,30,.5);}
.modal__panel{
  position:relative;width:520px;max-width:92vw;margin:7vh auto 0;
  background:var(--paper);border-radius:16px;padding:32px;
  box-shadow:0 24px 60px rgba(16,34,30,.3);
  max-height:86vh;overflow:auto;
}
.modal__panel h3{margin-bottom:8px;color:var(--brand-deep);}
.modal__sub{font-size:14px;color:var(--ink-soft);margin-bottom:22px;}
.modal__close{
  position:absolute;top:14px;right:14px;width:40px;height:40px;border-radius:10px;
  border:1px solid var(--line);background:#fff;color:var(--ink-soft);font-size:20px;line-height:1;
  cursor:pointer;transition:all .18s ease;
}
.modal__close:hover{border-color:var(--accent);color:var(--accent);}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;color:var(--ink-soft);margin-bottom:7px;}
.field input,.field select,.field textarea{
  width:100%;padding:11px 13px;font-size:15px;color:var(--ink);
  border:1px solid var(--line);border-radius:10px;background:#fff;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{resize:vertical;min-height:96px;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(196,102,58,.14);
}
.check-row{display:flex;gap:10px;align-items:flex-start;margin:6px 0 20px;}
.check-row input{margin-top:4px;width:16px;height:16px;flex:0 0 auto;accent-color:var(--accent);}
.check-row span{font-size:13px;color:var(--ink-soft);line-height:1.7;}
.check-row a{color:var(--accent);text-decoration:underline;}
.modal-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ============ 移动抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,34,30,.5);z-index:105;
  opacity:0;visibility:hidden;transition:opacity .25s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82vw;max-width:340px;z-index:110;
  background:var(--paper);padding:76px 24px 28px;overflow:auto;
  transform:translateX(102%);transition:transform .28s ease;
  box-shadow:-16px 0 40px rgba(16,34,30,.16);
}
.drawer.is-open{transform:none;}
.drawer h4{font-size:13px;letter-spacing:.14em;color:var(--ink-soft);font-family:var(--sans);margin-bottom:10px;}
.drawer a{
  display:block;padding:12px 0;font-size:16px;color:var(--ink);border-bottom:1px solid var(--line);
}
.drawer a:hover,.drawer a.is-active{color:var(--accent);}
.drawer .btn{width:100%;margin-top:24px;}

/* ============ 滚动动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .32s ease-out,transform .32s ease-out;}
.reveal.is-in{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{max-width:1080px;}
}
@media (max-width:1023px){
  .nav--left,.nav--right{display:none;}
  .nav-wrap{grid-template-columns:44px 1fr 44px;}
  .logo{grid-column:2;justify-self:center;font-size:17px;}
  .nav-toggle{display:flex;grid-column:3;justify-self:end;}
  .cat-body{padding:48px 0 16px;}
  .cat-layout{grid-template-columns:minmax(0,1fr);gap:30px;}
  .anchor-nav{position:static;}
  .anchor-title{margin-bottom:10px;}
  .anchor-nav ul{display:flex;flex-wrap:wrap;gap:8px;border-left:none;}
  .anchor-nav a{padding:6px 14px;border:1px solid var(--line);border-radius:999px;font-size:13.5px;background:#fff;}
  .anchor-nav a::before{display:none;}
  .anchor-nav a:hover{border-color:var(--accent);}
  .anchor-tip{display:none;}
  .cta-band{grid-template-columns:1fr;padding:36px;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .nav-wrap{padding:0 18px;height:60px;}
  .site-header.is-scrolled .nav-wrap{height:56px;}
  .logo{font-size:16px;}
  .cat-hero{padding:34px 0 28px;}
  .cat-hero .lead{font-size:15.5px;}
  .cat-body{padding:36px 0 12px;}
  .block + .block{margin-top:40px;padding-top:40px;}
  .card-grid,.info-grid{grid-template-columns:minmax(0,1fr);gap:18px;}
  .step-list li{grid-template-columns:40px minmax(0,1fr);gap:12px;}
  .step-num{font-size:19px;}
  .cta-band{padding:28px;margin-top:52px;border-radius:14px;}
  .cta-actions .btn{width:100%;}
  .faq-section{padding:44px 0 0;}
  .site-footer{padding:44px 0 24px;margin-top:60px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:24px;}
  .footer-bottom{flex-direction:column;}
  .modal__panel{margin:0 auto;width:100%;max-width:100%;border-radius:16px 16px 0 0;position:absolute;bottom:0;top:auto;padding:26px 20px 32px;}
}
@media (max-width:480px){
  h1{font-size:26px;}
  h2{font-size:21px;}
  .hero-anchors{gap:8px;}
  .chip{font-size:13px;padding:6px 13px;}
  .media-card__body,.info-card{padding:20px;}
}
@media (prefers-reduced-motion:reduce){
  .reveal{transform:none;transition:opacity .3s ease;}
  .media-card:hover,.info-card:hover,.btn-primary:hover{transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --ink:#14211E;
  --ink-soft:#56635F;
  --paper:#F7F6F2;
  --paper-2:#EDF0EB;
  --brand:#1E3A34;
  --brand-deep:#10221E;
  --accent:#C4663A;
  --accent-soft:#F0DFD4;
  --line:#E1E5E0;
  --ok:#3F7D5B;
  --err:#B4453A;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(20,33,30,.05),0 8px 24px rgba(20,33,30,.06);
  --sh-2:0 12px 32px rgba(20,33,30,.10);
  --header-h:72px;
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",SimSun,serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.8;
  color:var(--ink);
  background:var(--paper);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--accent);}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:16px;color:var(--ink);}
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:700;color:var(--ink);margin:0;letter-spacing:.01em;}
h1{font-size:clamp(32px,5vw,54px);line-height:1.14;}
h2{font-size:clamp(24px,3vw,36px);line-height:1.25;}
h3{font-size:21px;line-height:1.4;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section--alt{background:var(--paper-2);}
.sec-head{max-width:760px;margin-bottom:44px;}
.sec-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;color:var(--accent);
  text-transform:uppercase;margin-bottom:14px;font-weight:700;
}
.sec-kicker::before{content:"";width:22px;height:1px;background:var(--accent);display:block;}
.sec-sub{color:var(--ink-soft);font-size:16.5px;line-height:1.85;margin-top:14px;}
.divider{height:1px;background:var(--line);border:0;margin:0;}

/* 头部 */
.site-header{
  position:sticky;top:0;z-index:60;
  height:var(--header-h);
  background:rgba(247,246,242,.96);
  border-bottom:1px solid var(--line);
  transition:height .22s ease,box-shadow .22s ease,background .22s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(20,33,30,.06);}
.nav-wrap{
  max-width:1280px;height:100%;margin:0 auto;padding:0 24px;
  display:flex;align-items:center;gap:24px;
}
.nav{display:flex;align-items:center;gap:26px;}
.nav--left{flex:1;justify-content:flex-start;}
.nav--right{flex:1;justify-content:flex-end;}
.nav-link{
  position:relative;font-size:15.5px;color:var(--ink-soft);white-space:nowrap;
  padding:6px 2px;font-weight:500;
}
.nav-link::after{
  content:"";position:absolute;left:50%;right:50%;bottom:0;height:2px;
  background:var(--accent);transition:left .22s ease,right .22s ease;
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{left:0;right:0;}
.nav-link.is-active{color:var(--brand);font-weight:700;}
.nav-link.is-active::after{left:0;right:0;}
.logo{
  font-family:var(--font-serif);font-size:19px;font-weight:700;color:var(--brand);
  letter-spacing:.02em;white-space:nowrap;
}
.logo span{color:var(--accent);font-weight:400;margin-left:2px;}
.logo:hover{color:var(--brand-deep);}
.nav-cta{display:inline-flex;align-items:center;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:1.6px;background:var(--brand);
  transform:translateX(-50%);content:"";
}
.nav-toggle span{top:50%;margin-top:-.8px;}
.nav-toggle span::before{top:-6px;left:0;transform:none;}
.nav-toggle span::after{top:6px;left:0;transform:none;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15.5px;font-weight:600;border:1px solid transparent;
  transition:background .18s ease,color .18s ease,transform .18s ease,border-color .18s ease;
  text-align:center;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--brand);color:var(--paper);border-color:var(--brand);}
.btn-primary:hover{background:var(--accent);border-color:var(--accent);color:#fff;transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--accent-soft);border-color:var(--accent);color:var(--brand-deep);}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;border-radius:9px;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:15px;
}
.btn-text i{width:16px;height:1.6px;background:currentColor;display:inline-block;transition:transform .18s ease;}
.btn-text:hover{color:var(--accent);}
.btn-text:hover i{transform:translateX(4px);}
.btn[disabled]{opacity:.45;pointer-events:none;}

/* 徽章 / 标签 */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--accent-soft);color:var(--brand);
  font-size:12px;font-weight:700;letter-spacing:.03em;
  padding:5px 12px;border-radius:999px;
}
.badge--dot::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--accent);}

/* 分类页头 */
.cat-hero{
  position:relative;
  padding:76px 0 60px;
  background-image:linear-gradient(180deg,rgba(247,246,242,.94),rgba(247,246,242,.98)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.crumb{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--ink-soft);margin-bottom:22px;}
.crumb a{color:var(--ink-soft);}
.crumb a:hover{color:var(--accent);}
.crumb span.sep{opacity:.5;}
.cat-hero h1{max-width:900px;}
.cat-hero h1 em{font-style:normal;color:var(--brand);border-bottom:3px solid var(--accent-soft);}
.cat-hero .lead{max-width:680px;margin-top:18px;color:var(--ink-soft);font-size:17px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}

/* 吸顶 tab */
.tabbar{
  position:sticky;top:var(--header-h);z-index:50;
  background:rgba(247,246,242,.97);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(120%) blur(2px);
}
.tabbar-inner{
  display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;
  padding-top:12px;padding-bottom:12px;
}
.tabbar-inner::-webkit-scrollbar{display:none;}
.tab{
  flex:0 0 auto;padding:8px 16px;border-radius:999px;
  font-size:14.5px;color:var(--ink-soft);border:1px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.tab:hover{background:var(--paper-2);color:var(--ink);}
.tab.is-active{background:var(--brand);color:var(--paper);border-color:var(--brand);}

/* 锚点偏移 */
.anchor{scroll-margin-top:calc(var(--header-h) + 84px);}

/* zigzag */
.zig{padding:84px 0;}
.zig-row{
  display:grid;grid-template-columns:repeat(12,1fr);gap:48px;align-items:center;
  padding:56px 0;border-top:1px solid var(--line);
}
.zig-row:first-child{border-top:0;padding-top:0;}
.zig-copy{grid-column:span 6;}
.zig-media{grid-column:span 6;}
.zig-row.reverse .zig-copy{order:2;}
.zig-row.reverse .zig-media{order:1;}
.zig-num{
  font-family:var(--font-serif);font-size:56px;line-height:1;
  color:var(--accent-soft);font-weight:700;margin-bottom:14px;letter-spacing:.02em;
}
.zig-copy h3{font-size:clamp(22px,2.4vw,28px);margin-bottom:14px;}
.zig-copy p{color:var(--ink-soft);font-size:16.5px;}
.zig-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-img);border:1px solid var(--line);box-shadow:var(--sh-1);
  transition:transform .3s ease,box-shadow .3s ease;
}
.zig-media figure{margin:0;}
.zig-media figcaption{font-size:13px;color:var(--ink-soft);margin-top:12px;text-align:center;}
.zig-media:hover img{transform:scale(1.02);box-shadow:var(--sh-2);}

/* 要点列表 */
.point-list{margin-top:22px;display:grid;gap:12px;}
.point-list li{
  position:relative;padding-left:26px;font-size:16px;color:var(--ink-soft);line-height:1.75;
}
.point-list li::before{
  content:"";position:absolute;left:0;top:.62em;width:10px;height:10px;
  border:1.6px solid var(--accent);border-radius:2px;
}
.point-list strong{color:var(--ink);font-weight:600;}

/* 数据带 */
.data-band{
  background:var(--brand-deep);
  color:var(--paper);
  background-image:linear-gradient(120deg,rgba(16,34,30,.96),rgba(16,34,30,.86)),url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  padding:72px 0;
}
.data-band .sec-kicker{color:var(--accent-soft);}
.data-band .sec-kicker::before{background:var(--accent-soft);}
.data-band h2{color:#fff;max-width:640px;}
.data-band p{color:rgba(247,246,242,.72);}
.data-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:48px;
  border-top:1px solid rgba(247,246,242,.18);
}
.data-item{padding:32px 26px 0 0;border-right:1px solid rgba(247,246,242,.18);}
.data-item:last-child{border-right:0;}
.data-num{
  font-family:var(--font-serif);font-size:clamp(40px,4.6vw,54px);line-height:1;
  color:#fff;font-weight:700;
}
.data-num small{font-size:18px;margin-left:4px;color:var(--accent-soft);font-family:var(--font-sans);font-weight:600;}
.data-item span{display:block;margin-top:12px;font-size:14.5px;color:rgba(247,246,242,.7);}

/* 信息卡 */
.cards-2{
  display:grid;grid-template-columns:repeat(2,1fr);gap:24px;
}
.info-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.info-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.info-card h3{margin:14px 0 10px;font-size:20px;}
.info-card p{color:var(--ink-soft);font-size:15.5px;margin-bottom:16px;}
.info-card ul{margin:0;display:grid;gap:10px;}
.info-card li{
  font-size:15px;color:var(--ink-soft);padding-left:18px;position:relative;line-height:1.7;
}
.info-card li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--accent);
}

/* 引用大字 */
.quote-band{padding:80px 0;background:var(--paper-2);}
.quote-band blockquote{
  margin:0;max-width:900px;
  font-family:var(--font-serif);font-size:clamp(22px,2.8vw,32px);line-height:1.5;color:var(--brand);
  position:relative;padding-left:28px;
}
.quote-band blockquote::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;background:var(--accent);border-radius:2px;
}
.quote-band .quote-src{margin-top:22px;font-size:14.5px;color:var(--ink-soft);}

/* 步骤条 */
.steps{display:grid;gap:0;border-top:1px solid var(--line);}
.step{
  display:grid;grid-template-columns:88px 1fr;gap:24px;align-items:start;
  padding:26px 0;border-bottom:1px solid var(--line);
}
.step-num{
  font-family:var(--font-serif);font-size:26px;color:var(--accent);font-weight:700;line-height:1.3;
}
.step h4{font-size:18px;margin-bottom:6px;font-family:var(--font-sans);font-weight:700;}
.step p{color:var(--ink-soft);font-size:15.5px;margin:0;}

/* FAQ */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start;}
.faq-box details{border-bottom:1px solid var(--line);}
.faq-box details:first-child{border-top:1px solid var(--line);}
.faq-box summary{
  list-style:none;cursor:pointer;position:relative;
  padding:22px 44px 22px 0;font-size:17px;font-weight:700;color:var(--ink);
  font-family:var(--font-sans);
}
.faq-box summary::-webkit-details-marker{display:none;}
.faq-box summary::after{
  content:"";position:absolute;right:8px;top:50%;width:12px;height:12px;
  border-right:1.8px solid var(--accent);border-bottom:1.8px solid var(--accent);
  transform:translateY(-70%) rotate(45deg);transition:transform .22s ease;
}
.faq-box details[open] summary::after{transform:translateY(-30%) rotate(-135deg);}
.faq-box .faq-a{color:var(--ink-soft);font-size:15.5px;padding:0 40px 24px 0;line-height:1.8;}

/* 表单 */
.apply-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start;}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px;box-shadow:var(--sh-1);
}
.field{margin-bottom:20px;}
.field label{display:block;font-size:13px;color:var(--ink-soft);margin-bottom:8px;letter-spacing:.02em;}
.field input[type=text],
.field input[type=tel],
.field input[type=email],
.field select,
.field textarea{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--paper);transition:border-color .18s ease,background .18s ease;
}
.field textarea{resize:vertical;min-height:104px;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--accent);background:#fff;
}
.field.is-error input,.field.is-error select,.field.is-error textarea{border-color:var(--err);}
.field .err-msg{display:none;color:var(--err);font-size:12px;margin-top:8px;}
.field.is-error .err-msg{display:block;}
.check{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--ink-soft);line-height:1.7;}
.check input{margin-top:4px;width:16px;height:16px;accent-color:var(--brand);flex:0 0 auto;}
.check a{color:var(--brand);text-decoration:underline;}
.form-note{font-size:12.5px;color:var(--ink-soft);margin-top:14px;line-height:1.7;}
.form-status{display:none;margin-top:16px;padding:12px 14px;border-radius:var(--r-btn);font-size:14px;}
.form-status.ok{display:block;color:var(--ok);border:1px solid var(--ok);background:rgba(63,125,91,.06);}
.form-status.err{display:block;color:var(--err);border:1px solid var(--err);background:rgba(180,69,58,.06);}
.spinner{
  width:16px;height:16px;border:2px solid rgba(247,246,242,.45);border-top-color:var(--paper);
  border-radius:50%;animation:spin .8s linear infinite;display:inline-block;
}
@keyframes spin{to{transform:rotate(360deg);}}

/* CTA 条 */
.cta-bar{
  background:var(--brand);color:var(--paper);border-radius:var(--r-card);
  padding:44px 48px;display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between;
}
.cta-bar h2{color:#fff;font-size:clamp(22px,2.4vw,30px);max-width:620px;}
.cta-bar p{color:rgba(247,246,242,.72);margin-top:10px;font-size:15.5px;max-width:620px;}
.cta-bar .btn-primary{background:var(--accent);border-color:var(--accent);color:#fff;}
.cta-bar .btn-primary:hover{background:#fff;border-color:#fff;color:var(--brand);}
.cta-bar .btn-ghost{color:#fff;border-color:rgba(247,246,242,.5);}
.cta-bar .btn-ghost:hover{background:rgba(247,246,242,.12);border-color:#fff;color:#fff;}

/* 页脚 */
.site-footer{background:var(--brand-deep);color:rgba(247,246,242,.78);padding:64px 0 28px;margin-top:0;}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:40px;border-bottom:1px solid rgba(247,246,242,.14);
}
.footer-brand{
  display:block;font-family:var(--font-serif);font-size:19px;color:#fff;font-weight:700;margin-bottom:16px;
}
.footer-brand span{color:var(--accent);font-weight:400;}
.site-footer p{font-size:14.5px;line-height:1.8;color:rgba(247,246,242,.66);}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-family:var(--font-sans);font-weight:700;}
.footer-col a{display:block;font-size:14.5px;color:rgba(247,246,242,.7);margin-bottom:10px;}
.footer-col a:hover{color:var(--accent);}
.site-footer .btn-primary{background:var(--accent);border-color:var(--accent);color:#fff;}
.site-footer .btn-primary:hover{background:#fff;border-color:#fff;color:var(--brand);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  padding-top:24px;font-size:13px;color:rgba(247,246,242,.5);
}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,34,30,.5);opacity:0;visibility:hidden;
  transition:opacity .24s ease,visibility .24s ease;z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:320px;max-width:86vw;background:var(--paper);
  transform:translateX(100%);transition:transform .28s ease;z-index:90;
  padding:24px;overflow-y:auto;box-shadow:-12px 0 32px rgba(20,33,30,.14);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;}
.drawer-close{
  width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:var(--r-btn);
  font-size:20px;color:var(--brand);line-height:1;
}
.drawer nav a{
  display:block;padding:14px 0;border-bottom:1px solid var(--line);font-size:16px;color:var(--ink);
}
.drawer nav a.is-active{color:var(--accent);font-weight:700;}
.drawer-foot{margin-top:28px;display:grid;gap:12px;}

/* 弹层 */
.modal-mask{
  position:fixed;inset:0;background:rgba(16,34,30,.55);display:flex;align-items:center;justify-content:center;
  padding:24px;opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease;z-index:100;
}
.modal-mask.is-open{opacity:1;visibility:visible;}
.modal{
  position:relative;width:520px;max-width:100%;background:var(--paper);border-radius:var(--r-card);
  padding:32px;box-shadow:var(--sh-2);max-height:88vh;overflow-y:auto;
  transform:translateY(12px);transition:transform .26s ease;
}
.modal-mask.is-open .modal{transform:translateY(0);}
.modal h3{font-size:22px;margin-bottom:8px;}
.modal .modal-sub{font-size:14.5px;color:var(--ink-soft);margin-bottom:22px;}
.modal-close{
  position:absolute;top:14px;right:14px;width:40px;height:40px;border-radius:10px;
  border:1px solid var(--line);background:#fff;color:var(--brand);font-size:18px;line-height:1;
}

/* 动效 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .34s ease-out,transform .34s ease-out;}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{transform:none;transition:opacity .3s ease;}
  .zig-media:hover img{transform:none;}
  .info-card:hover{transform:none;}
}

/* 响应式 */
@media (max-width:1279px){
  .container{max-width:1080px;}
}
@media (max-width:1023px){
  :root{--header-h:64px;}
  .section{padding:64px 0;}
  .zig{padding:60px 0;}
  .zig-row{grid-template-columns:1fr;gap:28px;padding:44px 0;}
  .zig-copy,.zig-media{grid-column:span 1;}
  .zig-row.reverse .zig-copy{order:1;}
  .zig-row.reverse .zig-media{order:2;}
  .data-grid{grid-template-columns:repeat(2,1fr);}
  .data-item{padding:28px 20px 0 0;}
  .data-item:nth-child(2n){border-right:0;}
  .data-item:nth-child(n+3){margin-top:28px;}
  .faq-layout,.apply-grid{grid-template-columns:1fr;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cards-2{grid-template-columns:1fr;}
}
@media (max-width:900px){
  .nav{display:none;}
  .nav-toggle{display:block;}
  .nav-wrap{justify-content:space-between;gap:12px;}
  .logo{font-size:17px;}
  .cat-hero{padding:52px 0 44px;}
  .cta-bar{padding:32px 26px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .section{padding:52px 0;}
  .zig{padding:48px 0;}
  .field textarea{min-height:96px;}
  .form-card{padding:24px;}
  .drawer{width:88vw;}
  .modal-mask{align-items:flex-end;padding:0;}
  .modal{width:100%;border-radius:16px 16px 0 0;transform:translateY(24px);}
  .modal-mask.is-open .modal{transform:translateY(0);}
}
@media (max-width:520px){
  .data-grid{grid-template-columns:1fr 1fr;gap:0;}
  .data-num{font-size:38px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .hero-actions .btn{width:100%;}
  .step{grid-template-columns:56px 1fr;gap:16px;}
  .cta-bar .btn{width:100%;}
}