/* roulang page: index */
:root{
  --ink:#1F2E2A;
  --cloud:#4F6F68;
  --mist:#A9BDB7;
  --paper:#F7F5EF;
  --paper-soft:#FBFAF6;
  --white:#FFFFFF;
  --paper-2:#EFECE3;
  --ochre:#C0623B;
  --night:#121A18;
  --text:#33443F;
  --text-dim:#6B7C77;
  --line:rgba(31,46,42,.14);
  --line-soft:rgba(31,46,42,.08);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --r-btn:2px;
  --r-card:4px;
  --shadow-hover:0 18px 40px -30px rgba(18,26,24,.35);
  --shadow-modal:0 40px 100px -30px rgba(18,26,24,.45);
  --shell:1280px;
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--cloud);text-decoration:none;transition:color .24s ease;}
a:hover{color:var(--ink);}
button{font-family:inherit;}
h1,h2,h3,h4{font-family:var(--serif);color:var(--ink);margin:0;font-weight:600;letter-spacing:-.01em;}
p{margin:0 0 1.1em;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--ochre);outline-offset:3px;border-radius:2px;}
.skip-link{
  position:absolute;left:16px;top:-64px;z-index:2000;
  background:var(--ink);color:var(--paper);
  padding:12px 20px;border-radius:var(--r-btn);font-size:14px;
  transition:top .2s ease;
}
.skip-link:focus{top:16px;color:var(--paper);}
.shell{
  width:100%;max-width:var(--shell);margin:0 auto;
  padding:0 32px;
}
.eyebrow{
  font-size:11px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cloud);font-weight:600;
}
.sec{padding:var(--sec) 0;}
.sec-line{border-top:1px solid var(--line);}
.lead{max-width:640px;color:var(--text);font-size:16.5px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:900;
  background:var(--paper);
  border-bottom:1px solid var(--line-soft);
  transition:border-color .24s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;height:76px;
}
.brand{display:inline-flex;align-items:center;gap:11px;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{width:30px;height:30px;flex:0 0 30px;color:var(--cloud);}
.brand-name{
  font-family:var(--serif);font-size:19px;font-weight:600;
  letter-spacing:.01em;white-space:nowrap;
}
.nav-links{display:flex;align-items:center;gap:32px;}
.nav-link{
  position:relative;font-size:15px;letter-spacing:.04em;color:var(--ink);
  padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:0;
  background:var(--ink);transition:width .24s ease;
}
.nav-link:hover::after{width:100%;}
.nav-link.is-active::after{width:100%;background:var(--ochre);}
.header-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:44px;padding:0 22px;border:1px solid var(--ink);border-radius:999px;
  color:var(--ink);font-size:14px;letter-spacing:.04em;background:transparent;
  transition:background .24s ease,color .24s ease;
}
.header-cta:hover{background:var(--ink);color:var(--paper);}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);
  background:transparent;border-radius:var(--r-btn);
  align-items:center;justify-content:center;color:var(--ink);
}
.nav-toggle span{display:block;width:18px;height:1px;background:currentColor;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:1px;background:currentColor;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* mobile drawer */
.drawer{
  position:fixed;inset:0;z-index:1200;background:var(--paper);
  display:flex;flex-direction:column;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .24s ease,transform .24s ease,visibility .24s;
}
.drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.drawer-top{
  display:flex;align-items:center;justify-content:space-between;
  height:64px;padding:0 20px;border-bottom:1px solid var(--line-soft);
}
.drawer-close{
  width:44px;height:44px;background:transparent;border:1px solid var(--line);
  border-radius:var(--r-btn);font-size:20px;line-height:1;color:var(--ink);
}
.drawer-nav{padding:8px 20px;flex:1;overflow-y:auto;}
.drawer-nav a{
  display:block;font-size:18px;line-height:56px;color:var(--ink);
  border-bottom:1px solid var(--line-soft);
}
.drawer-nav a.is-active{color:var(--ochre);}
.drawer-foot{padding:20px;border-top:1px solid var(--line-soft);}
.drawer-foot .btn-primary-ink{width:100%;}
.drawer-foot p{margin:14px 0 0;font-size:12px;line-height:1.7;color:var(--text-dim);}

/* ---------- buttons ---------- */
.btn-base{
  display:inline-flex;align-items:center;gap:10px;justify-content:center;
  height:50px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15px;letter-spacing:.02em;cursor:pointer;
  transition:background .24s ease,color .24s ease,border-color .24s ease;
}
.btn-primary-ink{background:var(--ink);color:var(--paper);border:1px solid var(--ink);}
.btn-primary-ink:hover{background:#16241f;color:var(--paper);border-color:#16241f;}
.btn-primary-ink .arw{transition:transform .24s ease;}
.btn-primary-ink:hover .arw{transform:translateX(4px);}
.btn-outline-ink{background:transparent;color:var(--ink);border:1px solid var(--ink);}
.btn-outline-ink:hover{background:var(--ink);color:var(--paper);}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;
  color:var(--ink);border-bottom:1px solid var(--mist);padding-bottom:2px;
}
.link-arrow:hover{border-bottom-color:var(--ink);color:var(--ink);}
.link-arrow .arw{transition:transform .24s ease;}
.link-arrow:hover .arw{transform:translateX(4px);}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  font-size:11px;letter-spacing:.08em;color:var(--cloud);
  border:1px solid var(--mist);border-radius:999px;background:transparent;
}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line-soft);
  background-image:linear-gradient(90deg,rgba(247,245,239,.97) 0%,rgba(247,245,239,.94) 46%,rgba(247,245,239,.62) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center right;
  background-repeat:no-repeat;
}
.hero-inner{
  display:grid;grid-template-columns:7fr 5fr;gap:48px;
  padding:96px 0 56px;align-items:start;
}
.hero-brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.14em;color:var(--cloud);margin-bottom:26px;
}
.hero-brand::before{content:"";width:26px;height:1px;background:var(--ochre);}
.hero h1{
  font-size:clamp(36px,5.6vw,68px);
  line-height:1.08;letter-spacing:-.02em;margin-bottom:26px;
}
.hero h1 em{font-style:normal;color:var(--cloud);}
.hero-sub{
  font-size:17px;line-height:1.8;color:var(--text);max-width:560px;margin-bottom:34px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px;}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:0;
  border-top:1px solid var(--line);padding-top:18px;max-width:620px;
}
.hero-meta li{
  font-size:12px;letter-spacing:.08em;color:var(--text-dim);
  padding-right:26px;margin-right:26px;border-right:1px solid var(--line-soft);
  line-height:1.9;
}
.hero-meta li:last-child{border-right:0;margin-right:0;padding-right:0;}
.hero-meta b{color:var(--ink);font-weight:600;}
.hero-aside{
  border-left:1px solid var(--line);padding-left:28px;margin-top:12px;
}
.hero-aside .num{
  font-family:var(--serif);font-size:13px;letter-spacing:.1em;color:var(--mist);
}
.hero-aside h2{
  font-size:19px;margin:14px 0 16px;line-height:1.5;
}
.hero-aside ul li{
  font-size:13.5px;color:var(--text);padding:9px 0;
  border-bottom:1px solid var(--line-soft);display:flex;gap:10px;
}
.hero-aside ul li span{color:var(--cloud);flex:0 0 auto;font-size:12px;letter-spacing:.06em;}

/* ---------- pain points ---------- */
.pain{max-width:860px;}
.pain h2{font-size:clamp(26px,3.4vw,40px);line-height:1.24;margin-bottom:14px;}
.pain .lead{margin-bottom:44px;font-size:16px;}
.pain-list li{
  position:relative;padding:0 0 0 20px;margin-bottom:24px;
  font-size:16.5px;line-height:1.8;color:var(--text);
}
.pain-list li::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;
  background:var(--ink);
}
.pain-list .no{
  display:block;font-family:var(--serif);font-size:12px;letter-spacing:.14em;
  color:var(--cloud);margin-bottom:4px;
}

/* ---------- plans ---------- */
.plans{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start;}
.plans-head{position:sticky;top:112px;}
.plans-head h2{font-size:clamp(26px,3.2vw,40px);line-height:1.22;margin-bottom:18px;}
.plans-head p{font-size:15.5px;color:var(--text);max-width:360px;}
.plans-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.plan-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;display:flex;flex-direction:column;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.plan-card:hover{transform:translateY(-2px);border-color:var(--cloud);box-shadow:var(--shadow-hover);}
.plan-thumb{
  margin:-24px -24px 20px;border-radius:var(--r-card) var(--r-card) 0 0;overflow:hidden;
  background:var(--paper-2);aspect-ratio:16/10;
}
.plan-thumb img{width:100%;height:100%;object-fit:cover;filter:saturate(.92);}
.plan-no{
  font-family:var(--serif);font-size:12px;letter-spacing:.14em;color:var(--mist);
  display:block;margin-bottom:10px;
}
.plan-card h3{font-size:20px;margin-bottom:10px;font-family:var(--sans);font-weight:600;line-height:1.5;}
.plan-card p{font-size:14.5px;line-height:1.85;color:var(--text);margin-bottom:20px;}
.plan-card .link-arrow{margin-top:auto;align-self:flex-start;}

/* ---------- stats ---------- */
.stats{
  background:var(--night);color:var(--paper);padding:76px 0 56px;
}
.stats h2{
  color:var(--paper);font-size:clamp(24px,2.8vw,34px);margin-bottom:10px;
}
.stats .sub{font-size:14px;color:rgba(247,245,239,.66);max-width:620px;margin-bottom:44px;}
.stats-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
}
.stat-item{
  padding:0 28px;border-left:1px solid rgba(247,245,239,.16);
}
.stat-item:first-child{border-left:0;padding-left:0;}
.stat-num{
  font-family:var(--serif);font-size:clamp(44px,5vw,62px);line-height:1;
  color:var(--paper);font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.stat-num small{font-size:16px;margin-left:6px;letter-spacing:.04em;color:var(--mist);}
.stat-label{display:block;margin-top:14px;font-size:13px;letter-spacing:.06em;color:rgba(247,245,239,.8);}
.stat-note{
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(247,245,239,.16);
  font-size:12px;letter-spacing:.04em;color:rgba(247,245,239,.55);
}

/* ---------- news ---------- */
.news-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:12px;flex-wrap:wrap;
}
.news-head h2{font-size:clamp(26px,3.2vw,40px);line-height:1.2;}
.news-filter{
  display:flex;flex-wrap:wrap;gap:16px;font-size:13px;color:var(--text-dim);
  margin:16px 0 36px;
}
.news-filter span{letter-spacing:.04em;}
.news-filter span::after{content:"·";margin-left:16px;color:var(--mist);}
.news-filter span:last-child::after{content:"";margin:0;}
.news-list{border-top:1px solid var(--line);}
.news-row{
  display:grid;grid-template-columns:96px 1fr auto;gap:24px;align-items:center;
  padding:24px 12px;border-bottom:1px solid var(--line);
  transition:background .2s ease;
}
.news-row:hover{background:var(--paper-soft);}
.news-date{
  font-family:var(--serif);font-size:13px;letter-spacing:.04em;color:var(--cloud);
  font-variant-numeric:tabular-nums;
}
.news-main h3{font-size:21px;line-height:1.5;margin-bottom:6px;font-family:var(--serif);}
.news-main h3 a{color:var(--ink);}
.news-main h3 a:hover{color:var(--cloud);}
.news-main p{
  font-size:15px;color:var(--text);margin:0;line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-side{display:flex;align-items:center;gap:16px;}
.news-empty{
  border:1px dashed var(--mist);border-radius:var(--r-card);
  min-height:160px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:12px;padding:24px;text-align:center;color:var(--text-dim);font-size:14px;
}

/* ---------- form ---------- */
.form-sec{background:var(--paper-2);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}
.form-grid{display:grid;grid-template-columns:6fr 6fr;gap:64px;align-items:start;}
.form-intro h2{font-size:clamp(26px,3.2vw,38px);line-height:1.24;margin-bottom:18px;}
.form-intro p{font-size:15.5px;max-width:420px;}
.form-points{margin-top:28px;}
.form-points li{
  display:flex;gap:12px;font-size:14px;padding:11px 0;
  border-top:1px solid var(--line-soft);color:var(--text);
}
.form-points li i{font-style:normal;color:var(--ochre);font-family:var(--serif);}
.form-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px;
}
.fld{margin-bottom:20px;}
.fld label{
  display:block;font-size:13px;letter-spacing:.04em;color:var(--ink);margin-bottom:8px;
}
.fld .req{color:var(--ochre);margin-left:2px;}
.fld input[type=text],.fld input[type=tel],.fld input[type=email],.fld select,.fld textarea{
  width:100%;height:48px;padding:0 14px;font-size:15px;font-family:inherit;
  color:var(--ink);background:var(--white);
  border:1px solid var(--line);border-radius:2px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.fld textarea{height:104px;padding:12px 14px;line-height:1.7;resize:vertical;}
.fld input:focus,.fld select:focus,.fld textarea:focus{
  outline:none;border-color:var(--ink);box-shadow:0 0 0 3px rgba(31,46,42,.12);
}
.check-row{display:flex;gap:10px;align-items:flex-start;margin-bottom:20px;}
.check-row input[type=checkbox]{
  width:16px;height:16px;margin-top:5px;accent-color:var(--ink);flex:0 0 16px;
}
.check-row label{font-size:12.5px;line-height:1.7;color:var(--text);margin:0;}
.check-row a{border-bottom:1px solid var(--mist);}
.form-card .btn-primary-ink{width:100%;}
.form-note{font-size:12px;line-height:1.75;color:var(--text-dim);margin:14px 0 0;}
.form-alert{
  display:none;margin-top:16px;padding:12px 14px;background:var(--paper-2);
  border-left:2px solid var(--ink);font-size:13.5px;color:var(--ink);
}
.form-alert.is-on{display:block;}

/* ---------- faq ---------- */
.faq-wrap{max-width:860px;}
.faq-wrap h2{font-size:clamp(26px,3.2vw,40px);margin-bottom:12px;}
.faq-list{margin-top:36px;border-bottom:1px solid var(--line);}
.faq-item{border-top:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:24px;
  background:transparent;border:0;padding:22px 0;text-align:left;cursor:pointer;
  font-family:var(--sans);font-size:18px;font-weight:600;color:var(--ink);line-height:1.6;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--cloud);}
.faq-ic{
  position:relative;flex:0 0 20px;width:20px;height:20px;
  transition:transform .22s ease;
}
.faq-ic::before,.faq-ic::after{
  content:"";position:absolute;background:var(--cloud);left:50%;top:50%;
}
.faq-ic::before{width:14px;height:1px;transform:translate(-50%,-50%);}
.faq-ic::after{width:1px;height:14px;transform:translate(-50%,-50%);}
.faq-item.is-open .faq-ic{transform:rotate(45deg);}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .22s ease;
}
.faq-a p{
  font-size:15px;line-height:1.85;color:var(--text);max-width:720px;
  margin:0;padding:0 0 24px;
}

/* ---------- footer ---------- */
.site-footer{background:var(--night);color:rgba(247,245,239,.72);padding:72px 0 0;}
.footer-grid{
  display:grid;grid-template-columns:1.4fr .8fr .9fr 1fr;gap:40px;
  padding-bottom:56px;
}
.footer-brand .brand{color:var(--paper);margin-bottom:16px;}
.footer-brand .brand-mark{color:var(--mist);}
.footer-brand p{font-size:13.5px;line-height:1.85;max-width:300px;color:rgba(247,245,239,.6);}
.footer-col h4{
  font-family:var(--sans);font-size:12px;letter-spacing:.12em;color:var(--mist);
  font-weight:600;margin-bottom:16px;text-transform:uppercase;
}
.footer-col a,.footer-col span{display:block;font-size:14px;line-height:2;color:rgba(247,245,239,.72);}
.footer-col a:hover{color:var(--paper);}
.footer-bottom{
  border-top:1px solid rgba(247,245,239,.14);
  display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding:22px 0 28px;font-size:12px;color:rgba(247,245,239,.5);letter-spacing:.03em;
}
.footer-bottom a{color:rgba(247,245,239,.6);}
.footer-bottom a:hover{color:var(--paper);}

/* ---------- modal ---------- */
.sheet-mask{
  position:fixed;inset:0;z-index:1400;background:rgba(18,26,24,.5);
  display:flex;align-items:center;justify-content:center;padding:24px;
  opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s;
}
.sheet-mask.is-open{opacity:1;visibility:visible;}
.sheet{
  width:100%;max-width:560px;max-height:90vh;overflow-y:auto;
  background:var(--white);border-radius:var(--r-card);padding:32px;
  box-shadow:var(--shadow-modal);
  transform:translateY(8px);transition:transform .24s ease;
}
.sheet-mask.is-open .sheet{transform:translateY(0);}
.sheet-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:8px;}
.sheet-head h2{font-size:24px;line-height:1.4;}
.sheet-close{
  width:36px;height:36px;flex:0 0 36px;background:transparent;border:1px solid var(--line);
  border-radius:2px;font-size:18px;line-height:1;color:var(--ink);
}
.sheet-close:hover{border-color:var(--ink);}
.sheet-sub{font-size:13.5px;color:var(--text-dim);margin-bottom:24px;}

/* ---------- motion ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s ease,transform .6s ease;}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  :root{--sec:80px;}
}
@media (max-width:1024px){
  .shell{padding:0 24px;}
  .hero-inner{grid-template-columns:1fr;gap:36px;padding:72px 0 48px;}
  .hero-aside{border-left:0;border-top:1px solid var(--line);padding-left:0;padding-top:24px;margin-top:0;}
  .plans{grid-template-columns:1fr;gap:36px;}
  .plans-head{position:static;}
  .form-grid{grid-template-columns:1fr;gap:40px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:991.98px){
  .nav-links,.header-cta.desktop-only{display:none;}
  .nav-toggle{display:inline-flex;}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:36px 0;}
  .stat-item:nth-child(3){border-left:0;padding-left:0;}
}
@media (max-width:767.98px){
  :root{--sec:56px;}
  .header-inner{height:64px;}
  .brand-name{font-size:16px;}
  .brand-mark{width:26px;height:26px;flex:0 0 26px;}
  .hero h1{letter-spacing:-.01em;}
  .hero-actions .btn-base{flex:1 1 100%;}
  .plans-grid{grid-template-columns:1fr;}
  .news-row{grid-template-columns:1fr;gap:8px;padding:20px 8px;}
  .news-side{justify-content:flex-start;}
  .news-main h3{font-size:19px;}
  .sheet-mask{padding:0;}
  .sheet{max-width:none;height:100%;max-height:100%;border-radius:0;padding:24px 20px;display:flex;flex-direction:column;}
  .sheet-body{flex:1;overflow-y:auto;}
  .footer-grid{grid-template-columns:1fr;}
  .form-card{padding:24px 20px;}
  .stat-item{padding:0 16px;}
}
@media (max-width:575.98px){
  .shell{padding:0 20px;}
  .hero-meta li{
    border-right:0;padding-right:0;margin-right:20px;font-size:11.5px;
  }
  .stats-grid{grid-template-columns:1fr 1fr;}
  .stat-num{font-size:40px;}
  .faq-q{font-size:16.5px;}
  .news-filter{gap:10px;font-size:12px;}
  .news-filter span::after{margin-left:10px;}
}

/* roulang page: category1 */
:root{
  --ink:#1F2E2A;
  --cloud:#4F6F68;
  --mist:#A9BDB7;
  --paper:#F7F5EF;
  --white:#FFFFFF;
  --sheet:#EFECE3;
  --ochre:#C0623B;
  --night:#121A18;
  --body:#33443F;
  --line:rgba(169,189,183,.55);
  --line-strong:rgba(31,46,42,.28);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --r-btn:2px;
  --r-card:4px;
  --shadow-hover:0 18px 40px -30px rgba(18,26,24,.35);
  --shadow-modal:0 40px 100px -30px rgba(18,26,24,.45);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--body);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--cloud);text-decoration:none;transition:color .24s ease;}
a:hover{color:var(--ink);}
button{font-family:inherit;}
h1,h2,h3,h4{color:var(--ink);margin:0;font-weight:600;}
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(--ochre);outline-offset:3px;}

.shell{width:100%;max-width:1280px;margin:0 auto;padding:0 32px;}

.skip-link{
  position:absolute;left:16px;top:-60px;z-index:2000;
  background:var(--ink);color:var(--paper);
  padding:10px 18px;border-radius:var(--r-btn);font-size:14px;
  transition:top .2s ease;
}
.skip-link:focus{top:12px;color:var(--paper);}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:900;
  background:var(--paper);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;gap:28px;
  height:76px;
}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto;}
.brand:hover{color:var(--ink);}
.brand-mark{width:26px;height:26px;color:var(--cloud);flex:0 0 auto;}
.brand-name{
  font-family:var(--serif);
  font-size:19px;font-weight:600;letter-spacing:.02em;white-space:nowrap;
}
.nav-links{display:flex;align-items:center;gap:32px;margin-left:auto;}
.nav-link{
  position:relative;
  font-size:15px;letter-spacing:.04em;color:var(--body);
  padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:var(--ink);transform:scaleX(0);transform-origin:left;
  transition:transform .24s ease;
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--ink);}
.nav-link.is-active::after{transform:scaleX(1);}
.header-cta{
  flex:0 0 auto;
  height:40px;padding:0 20px;
  border:1px solid var(--line-strong);border-radius:999px;
  background:transparent;color:var(--ink);
  font-size:14px;letter-spacing:.04em;cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.header-cta:hover{background:var(--ink);color:var(--paper);border-color:var(--ink);}
.nav-toggle{
  display:none;
  width:44px;height:44px;margin-left:auto;
  border:1px solid var(--line-strong);border-radius:var(--r-btn);
  background:transparent;position:relative;cursor:pointer;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:1px;background:var(--ink);
  transform:translateX(-50%);transition:transform .24s ease,opacity .24s ease;
}
.nav-toggle span{top:50%;margin-top:-.5px;}
.nav-toggle span::before{content:"";top:-6px;}
.nav-toggle span::after{content:"";top:6px;}
.nav-toggle[aria-expanded="true"] span{transform:translateX(-50%) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::before{transform:rotate(-90deg);top:0;}
.nav-toggle[aria-expanded="true"] span::after{opacity:0;}

/* drawer */
.drawer{
  position:fixed;inset:0;z-index:1100;background:var(--paper);
  display:flex;flex-direction:column;
  padding:20px;
  transform:translateY(-100%);opacity:0;visibility:hidden;
  transition:transform .28s ease,opacity .28s ease,visibility .28s ease;
}
.drawer.is-open{transform:translateY(0);opacity:1;visibility:visible;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line);}
.drawer-close{
  width:44px;height:44px;border:1px solid var(--line-strong);border-radius:var(--r-btn);
  background:transparent;color:var(--ink);font-size:22px;line-height:1;cursor:pointer;
}
.drawer-nav{display:flex;flex-direction:column;padding-top:8px;}
.drawer-nav a{
  font-size:18px;line-height:56px;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.drawer-nav a:hover{color:var(--cloud);}
.drawer-foot{margin-top:auto;padding-top:24px;border-top:1px solid var(--line);}
.drawer-foot .btn-primary-solid{width:100%;}
.drawer-note{font-size:12px;line-height:1.7;color:var(--cloud);margin-top:14px;}

/* ---------- banner ---------- */
.page-banner{
  position:relative;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center right;
  background-color:var(--sheet);
}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(247,245,239,.94) 0%,rgba(247,245,239,.9) 62%,rgba(247,245,239,.82) 100%);
}
.banner-inner{position:relative;padding:38px 0 40px;}
.crumb{
  display:flex;flex-wrap:wrap;gap:8px;align-items:center;
  font-size:13px;color:var(--cloud);margin-bottom:18px;
}
.crumb a{color:var(--cloud);}
.crumb a:hover{color:var(--ink);}
.crumb .sep{color:var(--mist);}
.crumb .now{color:var(--ink);}
.eyebrow{
  display:inline-block;
  font-size:11px;letter-spacing:.16em;color:var(--cloud);
  border:1px solid var(--line-strong);border-radius:999px;
  padding:3px 12px;margin-bottom:16px;
}
.page-banner h1{
  font-family:var(--serif);
  font-size:clamp(28px,3.6vw,42px);
  line-height:1.2;letter-spacing:-.01em;
  max-width:820px;
}
.page-banner .lede{
  margin-top:16px;max-width:640px;
  font-size:16px;line-height:1.85;color:var(--body);
}

/* ---------- buttons ---------- */
.btn-primary-solid{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:50px;padding:0 26px;
  background:var(--ink);color:var(--paper);
  border:1px solid var(--ink);border-radius:var(--r-btn);
  font-size:15px;letter-spacing:.03em;cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary-solid:hover{background:#152420;color:var(--paper);border-color:#152420;}
.btn-primary-solid .arrow{transition:transform .2s ease;display:inline-block;}
.btn-primary-solid:hover .arrow{transform:translateX(4px);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:50px;padding:0 26px;
  background:transparent;color:var(--ink);
  border:1px solid var(--line-strong);border-radius:var(--r-btn);
  font-size:15px;letter-spacing:.03em;
  transition:border-color .2s ease,background .2s ease,color .2s ease;
}
.btn-ghost:hover{border-color:var(--ink);background:rgba(31,46,42,.04);color:var(--ink);}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;color:var(--ink);
  border-bottom:1px solid var(--line-strong);padding-bottom:2px;
  transition:color .2s ease,border-color .2s ease;
}
.link-arrow:hover{border-color:var(--ink);color:var(--ink);}
.link-arrow .arrow{transition:transform .2s ease;}
.link-arrow:hover .arrow{transform:translateX(4px);}

/* ---------- quick facts bar ---------- */
.facts{border-bottom:1px solid var(--line);}
.facts-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
}
.fact{
  padding:26px 24px 26px 0;
  border-left:1px solid var(--line);
  padding-left:24px;
}
.fact:first-child{border-left:none;padding-left:0;}
.fact-num{
  font-family:var(--serif);
  font-size:32px;line-height:1;color:var(--ink);
  font-variant-numeric:tabular-nums;
}
.fact-label{font-size:12px;letter-spacing:.1em;color:var(--cloud);margin-top:10px;}
.fact-desc{font-size:13px;color:var(--body);margin-top:6px;line-height:1.7;}

/* ---------- layout ---------- */
.cat-main{padding:80px 0 96px;}
.cat-layout{display:grid;grid-template-columns:220px 1fr;gap:64px;align-items:start;}
.toc{position:sticky;top:100px;}
.toc-title{font-size:12px;letter-spacing:.14em;color:var(--cloud);margin-bottom:16px;}
.toc-list{border-left:1px solid var(--line);}
.toc-list a{
  display:flex;gap:10px;align-items:baseline;
  padding:10px 0 10px 16px;
  font-size:14px;color:var(--body);
  border-left:1px solid transparent;margin-left:-1px;
  transition:color .2s ease,border-color .2s ease,padding-left .2s ease;
}
.toc-list a .idx{font-size:11px;letter-spacing:.08em;color:var(--mist);font-variant-numeric:tabular-nums;}
.toc-list a:hover{color:var(--ink);border-left-color:var(--mist);}
.toc-list a.is-active{color:var(--ink);border-left-color:var(--ochre);font-weight:500;}
.toc-note{
  margin-top:24px;padding:16px;background:var(--sheet);
  border-radius:var(--r-card);font-size:13px;line-height:1.8;color:var(--body);
}
.toc-note strong{display:block;color:var(--ink);font-size:13px;margin-bottom:6px;}

/* ---------- feature blocks ---------- */
.feature-block{
  display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;
  padding-bottom:72px;margin-bottom:72px;
  border-bottom:1px solid var(--line);
  scroll-margin-top:100px;
}
.feature-block:last-of-type{border-bottom:none;margin-bottom:0;}
.feature-block.alt{grid-template-columns:5fr 7fr;}
.feature-block.alt .feature-text{order:2;}
.feature-block.alt .feature-media{order:1;}
.block-index{
  display:flex;align-items:center;gap:12px;
  font-size:12px;letter-spacing:.14em;color:var(--cloud);margin-bottom:14px;
}
.block-index::before{content:"";display:block;width:24px;height:1px;background:var(--mist);}
.feature-text h2{
  font-family:var(--serif);
  font-size:clamp(24px,2.6vw,32px);line-height:1.3;margin-bottom:18px;
}
.feature-text h2::after{
  content:"";display:block;width:36px;height:2px;background:var(--ochre);margin-top:14px;
}
.feature-text p{font-size:16px;line-height:1.9;color:var(--body);}
.point-list{margin-top:22px;border-top:1px solid var(--line);}
.point-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:12px 0;border-bottom:1px solid var(--line);
  font-size:15px;line-height:1.75;color:var(--body);
}
.point-list li::before{
  content:"";flex:0 0 auto;width:14px;height:1px;background:var(--ochre);margin-top:13px;
}
.feature-media figure{margin:0;}
.feature-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-card);border:1px solid var(--line);
  transition:box-shadow .3s ease,transform .3s ease;
}
.feature-media img:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.feature-media figcaption{
  font-size:12px;color:var(--cloud);margin-top:12px;line-height:1.7;letter-spacing:.02em;
}
.alt-img img{object-position:left center;}

/* ---------- cta band ---------- */
.cta-band{
  margin-top:88px;padding-top:40px;border-top:1px solid var(--line-strong);
  display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between;
}
.cta-band h2{
  font-family:var(--serif);font-size:clamp(22px,2.4vw,28px);line-height:1.35;
}
.cta-band p{font-size:15px;color:var(--body);margin-top:8px;max-width:560px;}
.cta-band-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- section heading ---------- */
.section-head{max-width:720px;margin-bottom:40px;}
.section-head .tag{
  display:inline-block;font-size:11px;letter-spacing:.16em;color:var(--cloud);
  border:1px solid var(--line-strong);border-radius:999px;padding:3px 12px;margin-bottom:14px;
}
.section-head h2{font-family:var(--serif);font-size:clamp(24px,2.8vw,34px);line-height:1.3;}
.section-head p{margin-top:14px;font-size:16px;line-height:1.85;color:var(--body);}

/* ---------- sheet modal ---------- */
.sheet{
  position:fixed;inset:0;z-index:1200;
  display:flex;align-items:center;justify-content:center;
  padding:24px;
  background:rgba(18,26,24,.42);
  opacity:0;visibility:hidden;
  transition:opacity .24s ease,visibility .24s ease;
}
.sheet.is-open{opacity:1;visibility:visible;}
.sheet-panel{
  width:100%;max-width:560px;max-height:calc(100vh - 48px);overflow:auto;
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--r-card);padding:32px;
  box-shadow:var(--shadow-modal);
  transform:translateY(8px);transition:transform .24s ease;
}
.sheet.is-open .sheet-panel{transform:translateY(0);}
.sheet-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:8px;}
.sheet-head h3{font-family:var(--serif);font-size:24px;line-height:1.35;}
.sheet-close{
  flex:0 0 auto;width:36px;height:36px;background:transparent;border:1px solid var(--line);
  border-radius:var(--r-btn);color:var(--ink);font-size:18px;line-height:1;cursor:pointer;
  transition:border-color .2s ease,color .2s ease;
}
.sheet-close:hover{border-color:var(--ink);}
.sheet-sub{font-size:14px;color:var(--cloud);margin-bottom:22px;line-height:1.75;}

/* ---------- form ---------- */
.form-grid{display:grid;gap:16px;}
.field label{
  display:block;font-size:13px;letter-spacing:.04em;color:var(--ink);margin-bottom:7px;
}
.field label .req{color:var(--ochre);margin-left:3px;}
.field input[type="text"],
.field input[type="tel"],
.field input[type="email"],
.field select,
.field textarea{
  width:100%;
  font-family:inherit;font-size:15px;color:var(--body);
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  padding:0 14px;height:48px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:auto;min-height:96px;padding:12px 14px;resize:vertical;line-height:1.75;}
.field select{appearance:none;background-image:none;}
.field input::placeholder,.field textarea::placeholder{color:var(--mist);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--cloud);box-shadow:0 0 0 3px rgba(79,111,104,.16);
}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.check-row{display:flex;gap:10px;align-items:flex-start;font-size:12px;line-height:1.7;color:var(--body);}
.check-row input[type="checkbox"]{
  width:16px;height:16px;margin-top:3px;accent-color:var(--ink);flex:0 0 auto;
}
.check-row a{border-bottom:1px solid var(--line-strong);}
.form-note{font-size:12px;line-height:1.7;color:var(--cloud);margin-top:14px;}
.form-note a{color:var(--cloud);border-bottom:1px solid var(--line-strong);}
.form-success{
  display:none;margin-top:14px;padding:12px 14px;
  background:var(--sheet);border-radius:var(--r-card);
  font-size:13px;color:var(--ink);line-height:1.7;
}
.form-success.is-on{display:block;}

/* ---------- footer ---------- */
.site-footer{background:var(--night);color:rgba(247,245,239,.72);padding:72px 0 32px;margin-top:0;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:48px;
  padding-bottom:48px;border-bottom:1px solid rgba(247,245,239,.14);
}
.footer-brand .brand{color:var(--paper);}
.footer-brand .brand-mark{color:var(--mist);}
.footer-brand .brand-name{color:var(--paper);font-size:19px;}
.footer-brand p{
  margin-top:16px;font-size:14px;line-height:1.9;color:rgba(247,245,239,.62);max-width:300px;
}
.footer-col h4{
  font-size:12px;letter-spacing:.12em;color:var(--paper);font-weight:500;
  margin-bottom:16px;font-family:var(--sans);
}
.footer-col a,.footer-col span{
  display:block;font-size:14px;line-height:2;color:rgba(247,245,239,.66);
}
.footer-col a:hover{color:var(--paper);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  padding-top:24px;font-size:12px;color:rgba(247,245,239,.5);letter-spacing:.02em;
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s ease,transform .6s ease;}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .shell{max-width:1080px;}
  .cat-layout{gap:48px;}
}
@media (max-width:991.98px){
  .header-inner{height:68px;}
  .nav-links{display:none;}
  .header-cta{display:none;}
  .nav-toggle{display:block;}
  .cat-layout{grid-template-columns:1fr;gap:36px;}
  .toc{position:static;top:auto;}
  .toc-list{display:flex;flex-wrap:nowrap;gap:8px;overflow-x:auto;border-left:none;padding-bottom:6px;}
  .toc-list a{
    flex:0 0 auto;border:1px solid var(--line);border-radius:999px;
    padding:8px 16px;margin-left:0;white-space:nowrap;background:var(--white);
  }
  .toc-list a:hover,.toc-list a.is-active{border-color:var(--ink);background:var(--ink);color:var(--paper);}
  .toc-list a:hover .idx,.toc-list a.is-active .idx{color:rgba(247,245,239,.7);}
  .toc-note{display:none;}
  .cat-main{padding:56px 0 64px;}
  .feature-block,.feature-block.alt{grid-template-columns:1fr;gap:28px;padding-bottom:56px;margin-bottom:56px;}
  .feature-block.alt .feature-text{order:1;}
  .feature-block.alt .feature-media{order:2;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:767.98px){
  .shell{padding:0 20px;}
  .brand-name{font-size:16px;}
  .facts-grid{grid-template-columns:1fr 1fr;}
  .fact{border-left:none;padding:18px 0;border-top:1px solid var(--line);padding-left:0;}
  .fact:nth-child(1),.fact:nth-child(2){border-top:none;}
  .fact-num{font-size:26px;}
  .banner-inner{padding:28px 0 30px;}
  .cta-band{margin-top:56px;padding-top:32px;flex-direction:column;align-items:flex-start;}
  .cta-band-actions{width:100%;}
  .cta-band-actions .btn-primary-solid,.cta-band-actions .btn-ghost{flex:1 1 auto;}
  .field-row{grid-template-columns:1fr;}
  .sheet{padding:0;align-items:stretch;}
  .sheet-panel{
    max-width:none;max-height:100vh;height:100%;border-radius:0;border:none;
    padding:24px 20px 28px;display:flex;flex-direction:column;
  }
  .sheet form{margin-top:auto;}
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{padding:56px 0 28px;}
}
@media (max-width:575.98px){
  .page-banner h1{font-size:26px;}
  .feature-text h2{font-size:22px;}
  .btn-primary-solid,.btn-ghost{width:100%;}
  .cta-band-actions{flex-direction:column;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{transition-duration:.01ms!important;animation-duration:.01ms!important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: article */
:root{
  --ink:#1F2E2A;
  --ink-deep:#16221F;
  --cloud:#4F6F68;
  --mist:#A9BDB7;
  --paper:#F7F5EF;
  --paper-soft:#FBFAF6;
  --paper-2:#EFECE3;
  --white:#FFFFFF;
  --ochre:#C0623B;
  --night:#121A18;
  --text:#33443F;
  --text-soft:#5F6F69;
  --line:rgba(31,46,42,.14);
  --line-strong:rgba(31,46,42,.28);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --r-sm:2px;
  --r-md:4px;
  --sh-hover:0 18px 40px -30px rgba(18,26,24,.35);
  --sh-modal:0 40px 100px -30px rgba(18,26,24,.45);
  --header-h:76px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--cloud);text-decoration:none;}
a:hover{color:var(--ink);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);}
p{margin:0 0 1em;}
ul,ol{margin:0 0 1em;padding-left:1.35em;}
:focus-visible{outline:2px solid var(--ochre);outline-offset:3px;}
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;
  background:var(--ink);color:#fff;padding:10px 18px;border-radius:var(--r-sm);
  font-size:14px;
}
.skip-link:focus{left:16px;top:12px;color:#fff;}
.shell{width:100%;max-width:1280px;margin:0 auto;padding:0 32px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  transition:border-color .2s ease, box-shadow .2s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line-strong);box-shadow:0 1px 0 rgba(31,46,42,.05);}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  height:var(--header-h);
}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--ink);text-decoration:none;
  font-family:var(--serif);font-size:18px;letter-spacing:.02em;font-weight:600;
  white-space:nowrap;
}
.brand-mark{width:28px;height:28px;color:var(--cloud);flex:none;}
.brand-name{display:inline-block;}
.nav-links{display:flex;align-items:center;gap:30px;}
.nav-link{
  position:relative;display:inline-block;
  font-size:15px;letter-spacing:.04em;color:var(--ink);
  padding:6px 0;transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:0;
  background:var(--ink);transition:width .24s ease;
}
.nav-link:hover::after,.nav-link.is-active::after{width:100%;}
.nav-link.is-active{color:var(--ink);}
.header-cta{
  height:42px;padding:0 22px;border-radius:999px;
  border:1px solid var(--line-strong);background:transparent;color:var(--ink);
  font-size:14px;letter-spacing:.04em;cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.header-cta:hover{background:var(--ink);color:var(--paper);border-color:var(--ink);}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line-strong);
  background:transparent;border-radius:var(--r-sm);position:relative;cursor:pointer;padding:0;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;width:16px;height:1px;background:var(--ink);
  transform:translateX(-50%);content:"";
}
.nav-toggle span{top:50%;}
.nav-toggle span::before{top:-5px;}
.nav-toggle span::after{top:5px;}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:120;background:var(--paper);
  display:flex;flex-direction:column;
  transform:translateY(-102%);transition:transform .28s ease;
  visibility:hidden;
}
.drawer.is-open{transform:translateY(0);visibility:visible;}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  height:64px;padding:0 20px;border-bottom:1px solid var(--line);
}
.drawer-close{
  width:40px;height:40px;border:1px solid var(--line-strong);background:transparent;
  border-radius:var(--r-sm);font-size:20px;line-height:1;color:var(--ink);cursor:pointer;
}
.drawer-nav{display:flex;flex-direction:column;padding:8px 20px;overflow-y:auto;flex:1;}
.drawer-nav a{
  font-size:18px;line-height:56px;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.drawer-foot{padding:20px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:14px;}
.drawer-foot .btn-primary{width:100%;}
.drawer-foot a{font-size:13px;color:var(--text-soft);}

/* ---------- buttons ---------- */
.btn-primary{
  --bs-btn-bg:var(--ink);
  --bs-btn-border-color:var(--ink);
  --bs-btn-color:#fff;
  --bs-btn-hover-bg:var(--ink-deep);
  --bs-btn-hover-border-color:var(--ink-deep);
  --bs-btn-hover-color:#fff;
  --bs-btn-active-bg:var(--ink-deep);
  --bs-btn-active-border-color:var(--ink-deep);
  --bs-btn-active-color:#fff;
  --bs-btn-disabled-bg:var(--mist);
  --bs-btn-disabled-border-color:var(--mist);
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:50px;padding:0 26px;border-radius:var(--r-sm);
  font-size:15px;letter-spacing:.04em;border-width:1px;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-outline-ink{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:50px;padding:0 26px;border-radius:var(--r-sm);
  border:1px solid var(--line-strong);background:transparent;color:var(--ink);
  font-size:15px;letter-spacing:.04em;cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-outline-ink:hover{background:var(--ink);color:var(--paper);border-color:var(--ink);}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;color:var(--cloud);border-bottom:1px solid transparent;
  transition:color .2s ease,border-color .2s ease;
}
.text-link .arrow{transition:transform .2s ease;}
.text-link:hover{color:var(--ink);border-bottom-color:var(--ink);}
.text-link:hover .arrow{transform:translateX(4px);}

/* ---------- article head ---------- */
.breadcrumb-line{
  display:flex;flex-wrap:wrap;gap:8px;align-items:center;
  padding:32px 0 0;font-size:13px;color:var(--mist);
}
.breadcrumb-line a{color:var(--text-soft);}
.breadcrumb-line a:hover{color:var(--ink);}
.breadcrumb-line .current{color:var(--ink);}
.article-head{max-width:880px;padding-top:28px;}
.cat-tag{
  display:inline-block;font-size:11px;letter-spacing:.08em;
  border:1px solid var(--mist);border-radius:999px;padding:4px 12px;color:var(--cloud);
}
.article-head h1{
  font-family:var(--serif);font-weight:600;
  font-size:clamp(30px,4vw,46px);line-height:1.24;letter-spacing:-.01em;
  margin:20px 0 18px;
}
.meta-row{display:flex;flex-wrap:wrap;gap:10px 26px;font-size:13px;color:var(--text-soft);}
.rule{border:0;border-top:1px solid var(--line);margin:28px 0;}
.lede{
  font-size:18px;line-height:1.8;color:#3D4C47;max-width:760px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}

/* ---------- cover ---------- */
.cover{max-width:1000px;margin:34px 0 0;}
.cover img{
  width:100%;aspect-ratio:16/9;object-fit:cover;object-position:center;
  border-radius:var(--r-md);background:var(--paper-2);border:1px solid var(--line);
}
.cover figcaption{
  font-size:12px;color:#7B8B85;text-align:center;margin-top:10px;letter-spacing:.03em;
}

/* ---------- layout ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 240px;
  gap:64px;align-items:start;margin-top:52px;padding-bottom:96px;
}
.article-main{min-width:0;}
.toc-panel{
  position:sticky;top:100px;
  border-left:1px solid var(--line);padding-left:20px;
}
.toc-title{
  font-size:12px;letter-spacing:.12em;color:var(--cloud);
  margin:0 0 12px;font-weight:600;
}
.toc-panel a{
  display:block;padding:6px 0;font-size:13.5px;line-height:1.55;
  color:#4A5A54;border-bottom:1px solid transparent;transition:color .2s ease;
}
.toc-panel a:hover{color:var(--ink);}
.toc-panel a.toc-sub{padding-left:14px;font-size:12.5px;color:#6D7D77;}
.toc-mobile{display:none;margin-bottom:28px;}
.toc-mobile details{
  border:1px solid var(--line);border-radius:var(--r-md);background:var(--white);
}
.toc-mobile summary{
  cursor:pointer;list-style:none;padding:14px 18px;
  font-size:14px;color:var(--ink);letter-spacing:.04em;
}
.toc-mobile summary::-webkit-details-marker{display:none;}
.toc-mobile summary::after{content:"+";float:right;color:var(--cloud);}
.toc-mobile details[open] summary::after{content:"−";}
.toc-mobile .toc-body{padding:0 18px 16px;border-top:1px solid var(--line);}
.toc-mobile a{display:block;padding:9px 0;font-size:14px;color:#4A5A54;border-bottom:1px solid var(--line);}
.toc-mobile a:last-child{border-bottom:0;}
.toc-mobile a.toc-sub{padding-left:14px;font-size:13px;color:#6D7D77;}

/* ---------- article body ---------- */
.article-body{max-width:720px;font-size:17.5px;line-height:1.9;color:var(--text);}
.article-body > *:first-child{margin-top:0;}
.article-body h2{
  font-family:var(--serif);font-size:28px;font-weight:600;line-height:1.36;
  margin:46px 0 18px;padding-left:14px;border-left:3px solid var(--ochre);
  scroll-margin-top:104px;
}
.article-body h3{
  font-size:20px;font-weight:600;margin:30px 0 12px;scroll-margin-top:104px;
}
.article-body p{margin:0 0 1.2em;}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.4em;line-height:1.8;}
.article-body li{margin-bottom:.4em;}
.article-body blockquote{
  background:var(--paper-2);border-left:2px solid var(--cloud);
  margin:24px 0;padding:18px 22px;color:#3A4A44;font-size:16.5px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body table{
  display:block;width:100%;overflow-x:auto;border-collapse:collapse;
  margin:24px 0;font-size:15px;white-space:nowrap;
}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-body th{background:var(--paper-2);font-weight:600;color:var(--ink);}
.article-body img{max-width:100%;height:auto;border-radius:var(--r-sm);margin:18px 0;}
.article-body a{color:var(--cloud);border-bottom:1px solid rgba(79,111,104,.35);}
.article-body a:hover{color:var(--ink);border-bottom-color:var(--ink);}
.article-body strong{color:var(--ink);}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}
.article-body code{
  background:var(--paper-2);padding:2px 6px;border-radius:var(--r-sm);
  font-size:.92em;color:#40544E;
}

/* ---------- empty state ---------- */
.empty-article{
  border:1px dashed var(--line-strong);border-radius:var(--r-md);
  padding:56px 28px;text-align:center;background:var(--paper-soft);
}
.empty-article p{color:var(--text-soft);margin-bottom:18px;}

/* ---------- tags / related ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:44px 0 0;padding-top:28px;border-top:1px solid var(--line);}
.tag{
  display:inline-block;font-size:12px;letter-spacing:.06em;
  border:1px solid var(--line-strong);border-radius:999px;
  padding:5px 14px;color:var(--cloud);background:transparent;
}
.related-block{margin-top:44px;}
.related-block h2{
  font-family:var(--serif);font-size:24px;font-weight:600;margin-bottom:8px;
}
.related-list{border-top:1px solid var(--line);margin-top:16px;}
.related-item{
  display:block;padding:18px 0;border-bottom:1px solid var(--line);
  transition:background .2s ease,padding-left .2s ease;
}
.related-item:hover{background:var(--paper-soft);padding-left:10px;}
.related-title{
  display:block;font-family:var(--serif);font-size:19px;color:var(--ink);
  line-height:1.5;margin-bottom:6px;
}
.related-meta{font-size:13px;color:var(--text-soft);letter-spacing:.02em;}
.back-row{margin-top:36px;}

/* ---------- cta band ---------- */
.cta-band{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:56px 0;margin-bottom:0;background:var(--paper);
}
.cta-band-inner{
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{font-family:var(--serif);font-size:clamp(24px,2.6vw,32px);font-weight:600;margin-bottom:8px;}
.cta-band p{margin:0;color:var(--text-soft);font-size:15px;max-width:560px;}

/* ---------- sheet / modal ---------- */
.sheet{
  position:fixed;inset:0;z-index:150;display:none;
}
.sheet.is-open{display:block;}
.sheet-backdrop{
  position:absolute;inset:0;background:rgba(18,26,24,.42);
  opacity:0;transition:opacity .24s ease;
}
.sheet.is-open .sheet-backdrop{opacity:1;}
.sheet-panel{
  position:relative;z-index:2;margin:6vh auto 0;max-width:560px;width:calc(100% - 40px);
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-md);
  padding:32px;box-shadow:var(--sh-modal);
  opacity:0;transform:translateY(8px);
  transition:opacity .24s ease,transform .24s ease;
  max-height:88vh;overflow-y:auto;
}
.sheet.is-open .sheet-panel{opacity:1;transform:translateY(0);}
.sheet-panel h2{font-family:var(--serif);font-size:24px;font-weight:600;margin-bottom:8px;}
.sheet-sub{font-size:14px;color:var(--text-soft);margin-bottom:24px;}
.sheet-close{
  position:absolute;top:16px;right:16px;width:36px;height:36px;
  background:transparent;border:1px solid var(--line);border-radius:var(--r-sm);
  font-size:18px;line-height:1;color:var(--ink);cursor:pointer;
}
.sheet-close:hover{border-color:var(--line-strong);background:var(--paper);}

/* ---------- form ---------- */
.form-field{margin-bottom:18px;}
.form-field label{
  display:block;font-size:13px;color:var(--text-soft);
  margin-bottom:8px;letter-spacing:.04em;
}
.form-field input[type="text"],
.form-field input[type="tel"],
.form-field input[type="email"],
.form-field select,
.form-field textarea{
  width:100%;height:48px;padding:0 14px;font-size:15px;color:var(--text);
  background:var(--white);border:1px solid var(--line-strong);border-radius:var(--r-sm);
  transition:border-color .2s ease,box-shadow .2s ease;font-family:inherit;
}
.form-field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7;}
.form-field select{appearance:none;background-image:none;}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{
  outline:none;border-color:var(--cloud);box-shadow:0 0 0 3px rgba(79,111,104,.16);
}
.check-row{display:flex;align-items:flex-start;gap:10px;margin:6px 0 18px;}
.check-row input[type="checkbox"]{width:16px;height:16px;margin-top:5px;accent-color:var(--ink);flex:none;}
.check-row label{font-size:13px;color:var(--text-soft);line-height:1.7;margin:0;}
.check-row label a{color:var(--cloud);border-bottom:1px solid rgba(79,111,104,.35);}
.privacy-note{font-size:12px;line-height:1.7;color:#7B8B85;margin:14px 0 0;}
.privacy-note a{color:var(--cloud);border-bottom:1px solid rgba(79,111,104,.35);}
.form-success{
  display:none;background:var(--paper-2);color:var(--ink);
  border-radius:var(--r-sm);padding:14px 16px;font-size:14px;margin-top:16px;
}
.form-success.is-show{display:block;}

/* ---------- footer ---------- */
.site-footer{background:var(--night);color:#C9D3CF;padding:72px 0 0;margin-top:0;}
.site-footer .brand{color:#F7F5EF;font-size:17px;}
.site-footer .brand-mark{color:#9FB6AF;}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:56px;
}
.footer-brand p{font-size:14px;line-height:1.85;color:#A7B4AF;margin:16px 0 0;max-width:32ch;}
.footer-col h4{
  font-size:12px;letter-spacing:.12em;color:#8FA29B;font-weight:600;margin-bottom:16px;
}
.footer-col a,.footer-col span{
  display:block;font-size:14px;line-height:2;color:#C9D3CF;
  transition:color .2s ease;
}
.footer-col a:hover{color:#F7F5EF;}
.footer-bottom{
  border-top:1px solid rgba(247,245,239,.14);
  padding:22px 0 28px;display:flex;justify-content:space-between;gap:16px;
  flex-wrap:wrap;font-size:12px;color:#8FA29B;letter-spacing:.02em;
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s ease,transform .6s ease;}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .article-layout{gap:44px;grid-template-columns:minmax(0,1fr) 220px;}
}
@media (max-width:991px){
  .nav-links{gap:20px;}
  .nav-link{font-size:14px;}
  .article-layout{grid-template-columns:1fr;gap:0;}
  .toc-panel{display:none;}
  .toc-mobile{display:block;}
  .article-body{max-width:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .shell{padding:0 20px;}
  .nav-links{display:none;}
  .header-cta.desktop-only{display:none;}
  .nav-toggle{display:block;}
  .header-inner{height:64px;}
  .brand{font-size:16px;}
  .brand-mark{width:24px;height:24px;}
  .breadcrumb-line{padding-top:24px;font-size:12px;}
  .article-head{padding-top:20px;}
  .article-head h1{margin:16px 0 14px;}
  .lede{font-size:16px;}
  .cover{margin-top:26px;}
  .article-layout{margin-top:34px;padding-bottom:56px;}
  .article-body{font-size:16.5px;}
  .article-body h2{font-size:23px;margin-top:36px;}
  .article-body h3{font-size:18px;}
  .cta-band{padding:44px 0;}
  .cta-band-inner{flex-direction:column;align-items:flex-start;gap:20px;}
  .sheet-panel{
    max-width:none;width:100%;height:100%;max-height:none;margin:0;
    border-radius:0;border:0;padding:24px 20px 32px;
  }
  .sheet-panel .btn-primary{width:100%;}
  .related-title{font-size:17px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px;}
  .site-footer{padding-top:52px;}
}
@media (max-width:520px){
  .meta-row{gap:6px 16px;font-size:12px;}
  .cta-band h2{font-size:22px;}
  .btn-primary,.btn-outline-ink{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  .nav-link::after{transition:none;}
  .text-link .arrow{transition:none;}
}

/* roulang page: category2 */
:root{
  --ink:#1F2E2A;
  --cloud:#4F6F68;
  --mist:#A9BDB7;
  --paper:#F7F5EF;
  --white:#FFFFFF;
  --sheet:#EFECE3;
  --amber:#C0623B;
  --night:#121A18;
  --body:#33443F;
  --line:#E4E0D6;
  --line-strong:#CFC9BA;
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --radius-s:2px;
  --radius-m:4px;
  --shadow-hover:0 18px 40px -30px rgba(18,26,24,.35);
  --shadow-sheet:0 40px 100px -30px rgba(18,26,24,.45);
  --space-1:8px;--space-2:16px;--space-3:24px;--space-4:32px;--space-5:48px;--space-6:64px;--space-7:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--paper);color:var(--body);
  font-family:var(--sans);font-size:16px;line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;display:block;height:auto;}
a{color:var(--cloud);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--ink);}
button{font-family:inherit;}
h1,h2,h3,h4{font-family:var(--serif);color:var(--ink);margin:0;font-weight:600;letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:2px;}

.shell{width:100%;max-width:1280px;margin:0 auto;padding:0 32px;}

.skip-link{
  position:absolute;left:16px;top:-60px;z-index:200;
  background:var(--ink);color:var(--paper);padding:10px 18px;border-radius:var(--radius-s);
  font-size:14px;transition:top .2s ease;
}
.skip-link:focus{top:12px;color:var(--paper);}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  transition:border-color .25s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line-strong);}
.header-inner{display:flex;align-items:center;gap:32px;height:76px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{width:26px;height:26px;color:var(--cloud);flex:0 0 auto;transition:color .2s ease;}
.brand:hover .brand-mark{color:var(--amber);}
.brand-name{font-family:var(--serif);font-size:19px;font-weight:600;letter-spacing:.02em;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:30px;margin-left:auto;}
.nav-link{
  position:relative;font-size:15px;letter-spacing:.04em;color:var(--body);
  padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:var(--ink);transform:scaleX(0);transform-origin:left;
  transition:transform .24s ease;
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--ink);}
.nav-link.is-active::after{transform:scaleX(1);}
.header-cta{
  height:42px;padding:0 20px;border:1px solid var(--ink);border-radius:var(--radius-s);
  background:transparent;color:var(--ink);font-size:14px;letter-spacing:.02em;
  transition:background .2s ease,color .2s ease;
}
.header-cta:hover{background:var(--ink);color:var(--paper);}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line-strong);border-radius:var(--radius-s);
  background:transparent;position:relative;margin-left:auto;
}
.nav-toggle span{position:absolute;left:12px;right:12px;top:50%;height:1px;background:var(--ink);}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;right:0;height:1px;background:var(--ink);
}
.nav-toggle span::before{top:-7px;}
.nav-toggle span::after{top:7px;}

/* drawer */
.drawer{
  position:fixed;inset:0;z-index:180;visibility:hidden;pointer-events:none;
}
.drawer::before{
  content:"";position:absolute;inset:0;background:rgba(18,26,24,.4);
  opacity:0;transition:opacity .25s ease;
}
.drawer.is-open{visibility:visible;pointer-events:auto;}
.drawer.is-open::before{opacity:1;}
.drawer-panel{
  position:absolute;right:0;top:0;bottom:0;width:min(360px,88vw);
  background:var(--paper);display:flex;flex-direction:column;
  padding:20px 24px 28px;transform:translateX(100%);
  transition:transform .28s ease;border-left:1px solid var(--line);
}
.drawer.is-open .drawer-panel{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line);}
.drawer-close{
  width:36px;height:36px;border:1px solid var(--line-strong);background:transparent;
  border-radius:var(--radius-s);font-size:18px;line-height:1;color:var(--ink);
}
.drawer-nav{display:flex;flex-direction:column;padding-top:8px;}
.drawer-nav a{
  font-size:18px;line-height:56px;color:var(--ink);border-bottom:1px solid var(--line);
}
.drawer-nav a.is-active{color:var(--amber);}
.drawer-foot{margin-top:auto;padding-top:24px;}
.drawer-foot p{font-size:12px;line-height:1.7;color:var(--cloud);margin-top:12px;}

/* ---------- buttons ---------- */
.btn-ink,.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:50px;padding:0 24px;border-radius:var(--radius-s);
  font-size:15px;letter-spacing:.02em;cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-ink{background:var(--ink);color:var(--paper);border:1px solid var(--ink);}
.btn-ink:hover{background:#172420;border-color:#172420;color:var(--paper);}
.btn-line{background:transparent;color:var(--ink);border:1px solid var(--ink);}
.btn-line:hover{background:var(--ink);color:var(--paper);}
.btn-ink .arrow,.btn-line .arrow,.link-arrow .arrow{
  display:inline-block;transition:transform .2s ease;
}
.btn-ink:hover .arrow,.btn-line:hover .arrow,.link-arrow:hover .arrow{transform:translateX(4px);}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;font-size:15px;color:var(--cloud);
  border-bottom:1px solid transparent;padding-bottom:2px;
}
.link-arrow:hover{color:var(--ink);border-bottom-color:var(--ink);}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;border-bottom:1px solid var(--line);overflow:hidden;background:var(--paper);
}
.page-hero .hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center right;
  filter:saturate(.55);
}
.page-hero .hero-bg::after{
  content:"";position:absolute;inset:0;background:rgba(247,245,239,.9);
}
.page-hero .hero-inner{position:relative;padding:38px 0 46px;}
.breadcrumb-trail{
  display:flex;align-items:center;gap:8px;font-size:13px;color:var(--mist);
  margin-bottom:22px;overflow-x:auto;white-space:nowrap;
}
.breadcrumb-trail a{color:var(--cloud);}
.breadcrumb-trail a:hover{color:var(--ink);}
.breadcrumb-trail .sep{color:var(--mist);}
.breadcrumb-trail .current{color:var(--ink);}
.page-hero h1{
  font-size:clamp(32px,4.6vw,52px);line-height:1.16;letter-spacing:-.02em;max-width:900px;
}
.hero-lead{
  margin-top:18px;max-width:640px;font-size:16px;line-height:1.9;color:var(--body);
}
.hero-meta{
  margin-top:26px;display:flex;flex-wrap:wrap;gap:10px 28px;
  font-size:12px;letter-spacing:.08em;color:var(--cloud);
}
.hero-meta span{display:inline-flex;align-items:center;gap:8px;}
.hero-meta span::before{content:"";width:5px;height:5px;background:var(--mist);border-radius:50%;}

/* ---------- sections ---------- */
.section{padding:var(--space-7) 0;}
.section-tight{padding:var(--space-6) 0;}
.section-head{max-width:760px;margin-bottom:var(--space-5);}
.section-tag{
  display:inline-block;font-size:11px;letter-spacing:.14em;color:var(--cloud);
  border:1px solid var(--mist);border-radius:999px;padding:4px 12px;margin-bottom:16px;
}
.section-head h2{font-size:clamp(26px,3.2vw,38px);line-height:1.24;}
.section-head p{margin-top:14px;font-size:16px;color:var(--body);max-width:640px;}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:76px;max-width:960px;}
.timeline::before{
  content:"";position:absolute;left:20px;top:10px;bottom:14px;width:1px;background:var(--line-strong);
}
.tl-step{position:relative;padding-bottom:56px;}
.tl-step:last-child{padding-bottom:0;}
.tl-num{
  position:absolute;left:-76px;top:0;width:40px;height:40px;border-radius:50%;
  border:1px solid var(--mist);background:var(--white);color:var(--ink);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--serif);font-size:15px;font-feature-settings:"tnum";
}
.tl-step h3{font-size:20px;margin-bottom:12px;font-family:var(--serif);}
.tl-step p{font-size:16px;line-height:1.9;margin-bottom:12px;max-width:720px;}
.note-box{
  margin-top:16px;max-width:720px;background:var(--sheet);
  border-left:2px solid var(--cloud);border-radius:0 var(--radius-m) var(--radius-m) 0;
  padding:14px 18px;font-size:14px;line-height:1.8;color:var(--ink);
}
.note-box b{font-weight:600;color:var(--ink);margin-right:6px;}

/* ---------- spec table ---------- */
.spec-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-m);background:var(--white);}
.spec-table{width:100%;border-collapse:collapse;font-size:15px;min-width:640px;}
.spec-table th,.spec-table td{padding:16px 20px;text-align:left;border-bottom:1px solid var(--line);}
.spec-table thead th{
  background:var(--sheet);color:var(--cloud);font-weight:500;font-size:12px;letter-spacing:.08em;
  font-family:var(--sans);
}
.spec-table tbody th{font-family:var(--sans);font-weight:600;color:var(--ink);font-size:15px;}
.spec-table tr:last-child th,.spec-table tr:last-child td{border-bottom:none;}
.spec-table td{color:var(--body);}

/* ---------- info box ---------- */
.info-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:start;}
.info-box{border:1px solid var(--line);border-radius:var(--radius-m);background:var(--white);overflow:hidden;}
.info-row{
  display:grid;grid-template-columns:170px 1fr;gap:24px;
  padding:20px 26px;border-bottom:1px solid var(--line);
}
.info-row:last-child{border-bottom:none;}
.info-label{font-size:12px;letter-spacing:.1em;color:var(--cloud);padding-top:2px;}
.info-text{font-size:15px;line-height:1.85;color:var(--body);}
.visual-card{
  border:1px solid var(--line);border-radius:var(--radius-m);background:var(--white);
  overflow:hidden;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.visual-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--line-strong);}
.visual-card .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--sheet);}
.visual-card .thumb img{width:100%;height:100%;object-fit:cover;object-position:center;}
.visual-card .cap{padding:16px 20px;font-size:13px;line-height:1.75;color:var(--cloud);}

/* ---------- notes grid ---------- */
.notes-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;}
.note-card{
  border:1px solid var(--line);border-radius:var(--radius-m);background:var(--white);
  padding:28px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.note-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--line-strong);}
.note-card h3{font-size:19px;margin-bottom:16px;}
.note-card li{
  position:relative;padding-left:18px;font-size:15px;line-height:1.85;margin-bottom:12px;color:var(--body);
}
.note-card li:last-child{margin-bottom:0;}
.note-card li::before{
  content:"";position:absolute;left:0;top:12px;width:6px;height:1px;background:var(--amber);
}

/* ---------- cta band ---------- */
.cta-band{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:var(--space-5) 0;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{font-size:clamp(24px,2.8vw,32px);line-height:1.3;}
.cta-inner p{margin-top:10px;font-size:15px;color:var(--body);max-width:560px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-footer{background:var(--night);color:#CBD5D0;padding:64px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand{color:var(--paper);}
.footer-brand .brand-mark{color:var(--mist);}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.9;color:#9FB0AA;max-width:320px;}
.footer-col h4{
  font-family:var(--sans);font-size:12px;letter-spacing:.12em;color:#8FA39C;
  font-weight:500;margin-bottom:16px;
}
.footer-col a,.footer-col span{display:block;font-size:14px;line-height:2;color:#CBD5D0;}
.footer-col a:hover{color:var(--paper);}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(169,189,183,.22);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:#8FA39C;
}

/* ---------- sheet modal ---------- */
.sheet{position:fixed;inset:0;z-index:200;display:flex;align-items:center;justify-content:center;
  padding:24px;visibility:hidden;pointer-events:none;}
.sheet.is-open{visibility:visible;pointer-events:auto;}
.sheet-backdrop{position:absolute;inset:0;background:rgba(18,26,24,.45);opacity:0;transition:opacity .24s ease;}
.sheet.is-open .sheet-backdrop{opacity:1;}
.sheet-panel{
  position:relative;width:100%;max-width:560px;max-height:90vh;overflow-y:auto;
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-m);
  padding:32px;box-shadow:var(--shadow-sheet);
  transform:translateY(8px);opacity:0;transition:transform .24s ease,opacity .24s ease;
}
.sheet.is-open .sheet-panel{transform:translateY(0);opacity:1;}
.sheet-close{
  position:absolute;right:16px;top:16px;width:36px;height:36px;background:transparent;
  border:1px solid var(--line-strong);border-radius:var(--radius-s);
  font-size:18px;line-height:1;color:var(--ink);
}
.sheet-close:hover{border-color:var(--ink);}
.sheet-panel h2{font-size:24px;}
.sheet-lead{margin-top:10px;font-size:14px;line-height:1.8;color:var(--cloud);}
.guide-form{margin-top:24px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;color:var(--ink);margin-bottom:8px;letter-spacing:.02em;}
.field input[type="text"],.field input[type="tel"],.field input[type="email"],.field select,.field textarea{
  width:100%;height:48px;padding:0 14px;border:1px solid var(--line-strong);border-radius:var(--radius-s);
  background:var(--white);color:var(--body);font-size:15px;font-family:inherit;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--cloud) 50%),linear-gradient(135deg,var(--cloud) 50%,transparent 50%);
  background-position:calc(100% - 20px) 22px,calc(100% - 14px) 22px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--cloud);box-shadow:0 0 0 2px rgba(79,111,104,.18);
}
.check-row{display:flex;gap:10px;align-items:flex-start;font-size:12px;line-height:1.7;color:var(--cloud);}
.check-row input{width:16px;height:16px;margin-top:4px;accent-color:var(--ink);flex:0 0 auto;}
.check-row a{text-decoration:underline;text-underline-offset:3px;}
.form-note{margin-top:12px;font-size:12px;line-height:1.7;color:var(--cloud);}
.form-note a{text-decoration:underline;text-underline-offset:3px;}
.form-success{
  display:none;margin-top:16px;padding:14px 18px;background:var(--sheet);
  border-radius:var(--radius-m);font-size:14px;color:var(--ink);
}
.form-success.is-visible{display:block;}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s ease,transform .6s ease;}
.reveal.is-in{opacity:1;transform:translateY(0);}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .shell{max-width:100%;}
}
@media (max-width:991px){
  .nav-links,.header-cta.desktop-only{display:none;}
  .nav-toggle{display:block;}
  .section{padding:64px 0;}
  .info-layout{grid-template-columns:1fr;gap:32px;}
  .notes-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .shell{padding:0 20px;}
  .header-inner{height:64px;gap:16px;}
  .brand-name{font-size:17px;}
  .page-hero .hero-inner{padding:28px 0 36px;}
  .hero-lead{font-size:15px;}
  .timeline{padding-left:56px;}
  .timeline::before{left:15px;}
  .tl-num{left:-56px;width:32px;height:32px;font-size:13px;}
  .tl-step{padding-bottom:40px;}
  .info-row{grid-template-columns:1fr;gap:6px;padding:18px 20px;}
  .section{padding:56px 0;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .sheet{padding:0;}
  .sheet-panel{max-width:none;height:100%;max-height:none;border-radius:0;border:none;display:flex;flex-direction:column;}
  .sheet-panel form{margin-bottom:0;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
  --ink:#1F2E2A;
  --cloud:#4F6F68;
  --mist:#A9BDB7;
  --paper:#F7F5EF;
  --white:#FFFFFF;
  --paper-2:#EFECE3;
  --ochre:#C0623B;
  --night:#121A18;
  --text:#33443F;
  --line:rgba(169,189,183,.55);
  --line-strong:rgba(31,46,42,.28);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",sans-serif;
  --r-btn:2px;
  --r-card:4px;
  --shadow-hover:0 18px 40px -30px rgba(18,26,24,.35);
  --shadow-modal:0 40px 100px -30px rgba(18,26,24,.45);
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--cloud);text-decoration:none;transition:color .24s var(--ease);}
a:hover{color:var(--ink);}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:15px;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding-left:0;list-style:none;}
::selection{background:rgba(192,98,59,.18);color:var(--ink);}

:focus-visible{outline:2px solid var(--ochre);outline-offset:3px;}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:999;
  background:var(--ink);color:var(--paper);
  padding:12px 20px;border-radius:2px;font-size:14px;
}
.skip-link:focus{left:16px;top:16px;color:var(--paper);}

.shell{
  width:100%;
  max-width:1280px;
  margin:0 auto;
  padding:0 32px;
}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  transition:border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.site-header.is-scrolled{
  border-bottom-color:var(--line-strong);
  box-shadow:0 1px 0 rgba(31,46,42,.06);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  height:76px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--ink);
  font-family:var(--serif);
  font-size:19px;
  font-weight:600;
  letter-spacing:.02em;
  line-height:1;
  flex-shrink:0;
}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:26px;height:26px;
  color:var(--cloud);
  flex-shrink:0;
}
.brand-name{white-space:nowrap;}

.nav-links{
  display:flex;
  align-items:center;
  gap:32px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:15px;
  letter-spacing:.04em;
  color:var(--text);
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  height:1px;width:0;
  background:var(--ink);
  transition:width .24s var(--ease);
}
.nav-link:hover::after,
.nav-link:focus-visible::after{width:100%;}
.nav-link:hover{color:var(--ink);}
.nav-link.is-active{color:var(--ink);font-weight:500;}
.nav-link.is-active::after{width:100%;}

.header-cta{
  flex-shrink:0;
  height:40px;
  padding:0 22px;
  border:1px solid var(--ink);
  border-radius:999px;
  background:transparent;
  color:var(--ink);
  font-size:14px;
  letter-spacing:.04em;
  transition:background .24s var(--ease),color .24s var(--ease);
}
.header-cta:hover{background:var(--ink);color:var(--paper);}

.nav-toggle{
  display:none;
  position:relative;
  width:42px;height:42px;
  border:1px solid var(--line-strong);
  border-radius:2px;
  background:transparent;
}
.nav-toggle span,
.nav-toggle::before,
.nav-toggle::after{
  content:"";
  position:absolute;
  left:50%;width:18px;height:1px;
  background:var(--ink);
  transform:translateX(-50%);
  transition:transform .24s var(--ease),opacity .24s var(--ease);
}
.nav-toggle::before{top:14px;}
.nav-toggle span{top:50%;}
.nav-toggle::after{top:26px;}
.nav-toggle[aria-expanded="true"]::before{top:50%;transform:translateX(-50%) rotate(45deg);}
.nav-toggle[aria-expanded="true"]::after{top:50%;transform:translateX(-50%) rotate(-45deg);}
.nav-toggle[aria-expanded="true"] span{opacity:0;}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;
  inset:0;
  z-index:200;
  display:none;
  flex-direction:column;
  background:var(--paper);
  padding:20px 20px 32px;
  overflow-y:auto;
}
.drawer.is-open{display:flex;}
.drawer-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-bottom:16px;
  border-bottom:1px solid var(--line);
}
.drawer-close{
  width:42px;height:42px;
  border:1px solid var(--line-strong);
  border-radius:2px;
  background:transparent;
  color:var(--ink);
  font-size:20px;
  line-height:1;
  display:flex;align-items:center;justify-content:center;
}
.drawer-nav{display:flex;flex-direction:column;margin-top:8px;}
.drawer-nav a{
  font-size:18px;
  line-height:56px;
  color:var(--ink);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.is-active{color:var(--cloud);}
.drawer-bottom{margin-top:auto;padding-top:32px;display:flex;flex-direction:column;gap:16px;}
.drawer-bottom .btn-primary-solid{width:100%;}
.drawer-bottom a.privacy-link{font-size:13px;color:var(--cloud);}

/* ---------- buttons ---------- */
.btn-primary-solid{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  height:50px;
  padding:0 26px;
  border:1px solid var(--ink);
  border-radius:var(--r-btn);
  background:var(--ink);
  color:var(--paper);
  font-size:15px;
  letter-spacing:.04em;
  transition:background .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease);
}
.btn-primary-solid:hover{background:#16241F;border-color:#16241F;color:var(--paper);}
.btn-primary-solid .arrow{transition:transform .24s var(--ease);}
.btn-primary-solid:hover .arrow{transform:translateX(4px);}

.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  height:50px;
  padding:0 26px;
  border:1px solid var(--ink);
  border-radius:var(--r-btn);
  background:transparent;
  color:var(--ink);
  font-size:15px;
  letter-spacing:.04em;
  transition:background .24s var(--ease),color .24s var(--ease);
}
.btn-ghost:hover{background:var(--ink);color:var(--paper);}

.text-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  color:var(--cloud);
  border-bottom:1px solid transparent;
  padding-bottom:2px;
  transition:color .24s var(--ease),border-color .24s var(--ease);
}
.text-link .arrow{transition:transform .24s var(--ease);}
.text-link:hover{color:var(--ink);border-bottom-color:var(--ink);}
.text-link:hover .arrow{transform:translateX(4px);}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  min-height:200px;
  display:flex;
  align-items:center;
}
.page-hero-media{
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center right;
  filter:saturate(.68) contrast(.98);
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(100deg,rgba(247,245,239,.97) 0%,rgba(247,245,239,.95) 46%,rgba(247,245,239,.74) 100%);
}
.page-hero-inner{
  position:relative;
  z-index:2;
  width:100%;
  padding:52px 0 46px;
}
.crumbs{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--cloud);
  letter-spacing:.02em;
  margin-bottom:22px;
  overflow-x:auto;
  white-space:nowrap;
  scrollbar-width:none;
}
.crumbs::-webkit-scrollbar{display:none;}
.crumbs a{color:var(--cloud);}
.crumbs a:hover{color:var(--ink);}
.crumbs .sep{color:var(--mist);}
.crumbs .current{color:var(--ink);}

.page-title{
  font-family:var(--serif);
  font-size:clamp(30px,4vw,46px);
  font-weight:600;
  line-height:1.14;
  letter-spacing:-.01em;
  color:var(--ink);
  max-width:900px;
}
.page-lede{
  margin-top:20px;
  max-width:720px;
  font-size:16px;
  line-height:1.9;
  color:var(--text);
}
.page-hero-meta{
  margin-top:26px;
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--cloud);
}
.page-hero-meta span{display:inline-flex;align-items:center;gap:8px;}
.page-hero-meta span::before{
  content:"";
  width:14px;height:1px;
  background:var(--mist);
  display:inline-block;
}

/* ---------- sections ---------- */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head h2{
  font-family:var(--serif);
  font-size:clamp(26px,3vw,34px);
  font-weight:600;
  line-height:1.24;
  color:var(--ink);
}
.section-head p{margin-top:14px;font-size:15px;line-height:1.9;color:var(--text);}

/* ---------- doc layout 8/4 ---------- */
.doc-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:64px;
  align-items:start;
}
.clause{
  padding:36px 0 4px;
  border-top:1px solid var(--line);
}
.clause:first-child{padding-top:8px;border-top:0;}
.clause-num{
  display:block;
  font-size:12px;
  letter-spacing:.16em;
  color:var(--ochre);
  margin-bottom:10px;
  font-variant-numeric:tabular-nums;
}
.clause h2{
  font-family:var(--serif);
  font-size:24px;
  font-weight:600;
  line-height:1.3;
  color:var(--ink);
  margin-bottom:16px;
}
.clause h2 .num-inline{
  color:var(--ochre);
  font-family:var(--sans);
  font-size:13px;
  letter-spacing:.14em;
  margin-right:10px;
  vertical-align:2px;
}
.clause p{
  font-size:16px;
  line-height:1.92;
  color:var(--text);
  margin-bottom:16px;
}
.clause p:last-child{margin-bottom:0;}
.point-list{margin:6px 0 22px;}
.point-list li{
  position:relative;
  padding-left:20px;
  font-size:15.5px;
  line-height:1.9;
  color:var(--text);
  margin-bottom:10px;
}
.point-list li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:6px;height:6px;
  border:1px solid var(--cloud);
  border-radius:50%;
}
.point-list li:last-child{margin-bottom:0;}
.figure{margin:26px 0 30px;}
.figure img{
  width:100%;
  border-radius:4px;
  border:1px solid var(--line);
  object-fit:cover;
}
.figure figcaption{
  margin-top:10px;
  font-size:12px;
  line-height:1.7;
  color:var(--cloud);
  text-align:center;
}

/* ---------- aside ---------- */
.aside-card{
  position:sticky;
  top:100px;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px;
}
.aside-card h2{
  font-family:var(--serif);
  font-size:19px;
  font-weight:600;
  color:var(--ink);
  line-height:1.4;
  margin-bottom:8px;
}
.aside-card .aside-sub{
  font-size:13px;
  color:var(--cloud);
  line-height:1.7;
  margin-bottom:18px;
}
.aside-list li{
  padding:14px 0;
  border-top:1px solid var(--line);
  font-size:14px;
  line-height:1.75;
  color:var(--text);
  display:flex;
  gap:10px;
}
.aside-list li .idx{
  font-size:12px;
  letter-spacing:.1em;
  color:var(--ochre);
  flex-shrink:0;
  padding-top:3px;
  font-variant-numeric:tabular-nums;
}
.aside-updated{
  margin-top:20px;
  padding-top:16px;
  border-top:1px solid var(--line);
  font-size:12px;
  letter-spacing:.04em;
  color:var(--cloud);
  line-height:1.8;
}
.aside-card .btn-ghost{
  width:100%;
  height:44px;
  margin-top:18px;
  font-size:14px;
}

/* ---------- faq ---------- */
.faq-wrap{max-width:860px;}
.faq-item{border-top:1px solid var(--line);}
.faq-item:last-child{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:24px;
  padding:22px 0;
  border:0;
  background:transparent;
  text-align:left;
  font-size:18px;
  font-weight:500;
  line-height:1.6;
  color:var(--ink);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--cloud);}
.faq-icon{
  position:relative;
  flex-shrink:0;
  width:16px;height:16px;
  margin-top:6px;
  transition:transform .22s var(--ease);
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--cloud);
  transition:background .2s var(--ease);
}
.faq-icon::before{left:0;top:50%;width:16px;height:1px;transform:translateY(-50%);}
.faq-icon::after{top:0;left:50%;height:16px;width:1px;transform:translateX(-50%);}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-item.is-open .faq-icon::before,
.faq-item.is-open .faq-icon::after{background:var(--ochre);}
.faq-a{
  display:grid;
  grid-template-rows:0fr;
  transition:grid-template-rows .22s var(--ease);
}
.faq-a > div{overflow:hidden;}
.faq-a p{
  max-width:720px;
  padding:0 0 24px;
  font-size:15px;
  line-height:1.88;
  color:var(--text);
}
.faq-item.is-open .faq-a{grid-template-rows:1fr;}

/* ---------- cta band ---------- */
.cta-band{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:56px 0;
}
.cta-band-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
  flex-wrap:wrap;
}
.cta-band h2{
  font-family:var(--serif);
  font-size:clamp(24px,2.6vw,30px);
  font-weight:600;
  color:var(--ink);
  line-height:1.3;
}
.cta-band p{
  margin-top:12px;
  font-size:15px;
  line-height:1.85;
  color:var(--text);
  max-width:640px;
}
.cta-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap;}

/* ---------- privacy strip ---------- */
.privacy-strip{
  background:var(--paper-2);
  border-bottom:1px solid var(--line);
  padding:26px 0;
}
.privacy-strip p{
  font-size:13px;
  line-height:1.85;
  color:var(--text);
  max-width:1000px;
}
.privacy-strip a{
  color:var(--cloud);
  border-bottom:1px solid var(--mist);
}
.privacy-strip a:hover{color:var(--ink);border-bottom-color:var(--ink);}

/* ---------- footer ---------- */
.site-footer{
  background:var(--night);
  color:rgba(247,245,239,.72);
  padding:72px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:48px;
}
.footer-brand .brand{
  color:var(--paper);
  margin-bottom:18px;
}
.footer-brand .brand-mark{color:var(--mist);}
.footer-brand p{
  font-size:14px;
  line-height:1.9;
  color:rgba(247,245,239,.66);
  max-width:320px;
}
.footer-col h4{
  font-size:12px;
  letter-spacing:.12em;
  font-weight:500;
  color:var(--mist);
  margin-bottom:18px;
}
.footer-col a,
.footer-col span{
  display:block;
  font-size:14px;
  line-height:2;
  color:rgba(247,245,239,.72);
  transition:color .24s var(--ease);
  word-break:break-word;
}
.footer-col a:hover{color:var(--paper);}
.footer-bottom{
  margin-top:56px;
  border-top:1px solid rgba(247,245,239,.12);
  padding:24px 0;
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:12px;
  letter-spacing:.02em;
  color:rgba(247,245,239,.55);
}

/* ---------- modal ---------- */
.guide-modal{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--white);
  box-shadow:var(--shadow-modal);
  padding:32px;
}
.guide-modal .modal-header{
  border-bottom:0;
  padding:0 0 6px;
  align-items:flex-start;
}
.guide-modal .modal-title{
  font-family:var(--serif);
  font-size:24px;
  font-weight:600;
  color:var(--ink);
  line-height:1.35;
}
.guide-modal .modal-sub{
  margin-top:8px;
  font-size:13px;
  line-height:1.8;
  color:var(--cloud);
}
.guide-modal .btn-close{
  background:none;
  width:28px;height:28px;
  opacity:1;
  position:relative;
  padding:0;
  margin:0;
  border-radius:2px;
}
.guide-modal .btn-close::before,
.guide-modal .btn-close::after{
  content:"";
  position:absolute;
  top:50%;left:50%;
  width:16px;height:1px;
  background:var(--cloud);
}
.guide-modal .btn-close::before{transform:translate(-50%,-50%) rotate(45deg);}
.guide-modal .btn-close::after{transform:translate(-50%,-50%) rotate(-45deg);}
.guide-modal .modal-body{padding:20px 0 0;}

.field{margin-bottom:18px;}
.field label{
  display:block;
  font-size:13px;
  letter-spacing:.04em;
  color:var(--ink);
  margin-bottom:8px;
}
.field .req{color:var(--ochre);}
.field input,
.field select,
.field textarea{
  width:100%;
  height:48px;
  padding:0 14px;
  border:1px solid var(--line-strong);
  border-radius:2px;
  background:var(--white);
  color:var(--text);
  font-size:15px;
  line-height:1.4;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{
  height:auto;
  min-height:96px;
  padding:12px 14px;
  resize:vertical;
  line-height:1.7;
}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--ink);
  box-shadow:0 0 0 2px rgba(79,111,104,.18);
}
.field input::placeholder,
.field textarea::placeholder{color:var(--mist);}
.check-field{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:12px;
  line-height:1.7;
  color:var(--text);
  margin-bottom:20px;
}
.check-field input{
  width:16px;height:16px;
  margin-top:3px;
  flex-shrink:0;
  accent-color:var(--ink);
}
.check-field a{color:var(--cloud);border-bottom:1px solid var(--mist);}
.form-note{font-size:12px;line-height:1.7;color:var(--cloud);margin-top:16px;}
.form-success{
  display:none;
  background:var(--paper-2);
  border-radius:2px;
  padding:14px 16px;
  font-size:13px;
  line-height:1.7;
  color:var(--ink);
  margin-top:16px;
}
.form-success.is-visible{display:block;}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .doc-layout{grid-template-columns:minmax(0,1fr) 290px;gap:48px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:40px;}
  .footer-col:last-child{grid-column:span 3;}
}

@media (max-width:991.98px){
  .nav-links{display:none;}
  .header-cta.desktop-only{display:none;}
  .nav-toggle{display:block;}
  .header-inner{height:64px;}
  .brand{font-size:17px;}
  .brand-mark{width:23px;height:23px;}
  .section{padding:64px 0;}
  .doc-layout{grid-template-columns:1fr;gap:44px;}
  .aside-card{position:static;}
  .page-hero-inner{padding:44px 0 38px;}
  .cta-band-inner{flex-direction:column;align-items:flex-start;gap:28px;}
}

@media (max-width:767.98px){
  .shell{padding:0 24px;}
  .page-title{font-size:clamp(25px,5.6vw,34px);}
  .page-lede{font-size:15px;}
  .clause h2{font-size:21px;}
  .clause p{font-size:15px;}
  .faq-q{font-size:16.5px;padding:20px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-col:last-child{grid-column:span 2;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .guide-modal{padding:24px;}
  .guide-modal .modal-title{font-size:21px;}
}

@media (max-width:575.98px){
  .shell{padding:0 20px;}
  .section{padding:56px 0;}
  .section-tight{padding:48px 0;}
  .page-hero-inner{padding:36px 0 32px;}
  .page-hero-meta{font-size:11px;gap:8px 16px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-primary-solid,
  .cta-actions .btn-ghost{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-col:last-child{grid-column:span 1;}
  .footer-brand p{max-width:none;}
  .modal-dialog{margin:0;max-width:none;height:100%;}
  .guide-modal{
    min-height:100%;
    border-radius:0;
    display:flex;
    flex-direction:column;
  }
  .guide-modal .modal-body{flex:1 1 auto;overflow-y:auto;}
  .guide-modal .btn-primary-solid{width:100%;}
}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category4 */
:root{
  --ink:#1F2E2A;
  --cloud:#4F6F68;
  --mist:#A9BDB7;
  --paper:#F7F5EF;
  --white:#FFFFFF;
  --leaf:#EFECE3;
  --ochre:#C0623B;
  --night:#121A18;
  --text:#33443F;
  --muted:#5D6F69;
  --line:rgba(31,46,42,.14);
  --line-soft:rgba(31,46,42,.08);
  --radius-card:4px;
  --radius-btn:2px;
  --shadow-hover:0 18px 40px -30px rgba(18,26,24,.35);
  --shadow-modal:0 40px 100px -30px rgba(18,26,24,.45);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.is-locked{overflow:hidden;}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;color:var(--ink);line-height:1.25;margin:0;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
button{font-family:inherit;color:inherit;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--text);}
:focus-visible{outline:2px solid var(--ochre);outline-offset:3px;}

.shell{
  width:100%;
  max-width:1280px;
  margin:0 auto;
  padding:0 32px;
}

.skip-link{
  position:absolute;
  left:16px;
  top:-60px;
  z-index:200;
  background:var(--ink);
  color:var(--paper);
  padding:10px 18px;
  border-radius:var(--radius-btn);
  font-size:14px;
  transition:top .2s var(--ease);
}
.skip-link:focus{top:12px;}

/* ============ header ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--white);
  border-bottom:1px solid var(--line-soft);
  transition:border-color .2s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);}
.header-inner{
  height:76px;
  display:flex;
  align-items:center;
  gap:36px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--ink);
  font-family:var(--serif);
  font-size:18px;
  letter-spacing:.02em;
  white-space:nowrap;
}
.brand-mark{width:27px;height:27px;color:var(--cloud);flex:none;}
.brand-name{font-weight:600;}
.nav-links{
  display:flex;
  align-items:center;
  gap:30px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  font-size:15px;
  letter-spacing:.04em;
  color:var(--text);
  padding:6px 0;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:0;
  height:1px;
  background:var(--ink);
  transition:width .24s var(--ease);
}
.nav-link:hover::after,
.nav-link.is-active::after{width:100%;}
.nav-link.is-active{color:var(--ink);}
.nav-link:hover{color:var(--ink);}

.header-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:42px;
  padding:0 20px;
  border:1px solid var(--ink);
  border-radius:999px;
  background:transparent;
  color:var(--ink);
  font-size:14px;
  letter-spacing:.03em;
  cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.header-cta:hover{background:var(--ink);color:var(--paper);}

.nav-toggle{
  display:none;
  margin-left:auto;
  width:44px;
  height:44px;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  background:transparent;
  cursor:pointer;
  position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;
  left:50%;
  width:18px;
  height:1px;
  background:var(--ink);
  transform:translateX(-50%);
  transition:transform .24s var(--ease),opacity .24s var(--ease);
}
.nav-toggle span{top:50%;}
.nav-toggle span::before{content:"";top:-6px;left:0;transform:none;}
.nav-toggle span::after{content:"";top:6px;left:0;transform:none;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg);}

/* ============ drawer ============ */
.drawer{
  position:fixed;
  inset:0;
  z-index:90;
  background:var(--paper);
  display:flex;
  flex-direction:column;
  padding:20px;
  transform:translateX(100%);
  visibility:hidden;
  transition:transform .28s var(--ease),visibility .28s var(--ease);
}
.drawer.is-open{transform:translateX(0);visibility:visible;}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-bottom:16px;
  border-bottom:1px solid var(--line);
}
.drawer-close{
  width:40px;height:40px;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  background:transparent;
  font-size:20px;
  line-height:1;
  color:var(--ink);
  cursor:pointer;
}
.drawer-nav{display:flex;flex-direction:column;margin-top:8px;}
.drawer-nav a{
  font-size:18px;
  line-height:56px;
  border-bottom:1px solid var(--line-soft);
  color:var(--ink);
}
.drawer-nav a.is-active{color:var(--cloud);}
.drawer-foot{
  margin-top:auto;
  padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;
  flex-direction:column;
  gap:14px;
}
.drawer-foot .btn-solid{width:100%;}
.drawer-foot p{font-size:12px;line-height:1.7;color:var(--muted);}
.drawer-foot p a{color:var(--cloud);text-decoration:underline;text-underline-offset:3px;}

/* ============ buttons ============ */
.btn-solid{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  height:50px;
  padding:0 26px;
  background:var(--ink);
  color:var(--paper);
  border:1px solid var(--ink);
  border-radius:var(--radius-btn);
  font-size:15px;
  letter-spacing:.02em;
  cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-solid:hover{background:#16211E;border-color:#16211E;color:#fff;}
.btn-solid .arrow{transition:transform .2s var(--ease);}
.btn-solid:hover .arrow{transform:translateX(4px);}
.btn-outline{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  height:50px;
  padding:0 26px;
  background:transparent;
  color:var(--ink);
  border:1px solid var(--ink);
  border-radius:var(--radius-btn);
  font-size:15px;
  cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.btn-outline:hover{background:var(--ink);color:var(--paper);}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--cloud);
  letter-spacing:.02em;
}
.link-arrow .arrow{transition:transform .2s var(--ease);}
.link-arrow:hover{color:var(--ink);}
.link-arrow:hover .arrow{transform:translateX(4px);}

/* ============ hero ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  background:var(--paper);
  border-bottom:1px solid var(--line-soft);
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url(/assets/images/backpic/back-2.webp);
  background-size:cover;
  background-position:center right;
  filter:saturate(.6) contrast(.95);
  opacity:.5;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(247,245,239,.97) 0%,rgba(247,245,239,.92) 44%,rgba(247,245,239,.58) 100%);
}
.page-hero .shell{
  position:relative;
  z-index:2;
  padding-top:42px;
  padding-bottom:46px;
}
.crumbs{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--muted);
  flex-wrap:wrap;
}
.crumbs a:hover{color:var(--ink);}
.crumbs .sep{color:var(--mist);}
.crumbs .current{color:var(--ink);}
.page-hero h1{
  margin-top:20px;
  font-size:clamp(30px,4vw,46px);
  letter-spacing:-.01em;
  max-width:840px;
}
.hero-lead{
  margin-top:16px;
  max-width:640px;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px 22px;
  margin-top:24px;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--muted);
}
.hero-meta li{display:flex;align-items:center;gap:8px;}
.hero-meta li::before{
  content:"";
  width:4px;height:4px;
  border-radius:50%;
  background:var(--ochre);
  flex:none;
}

/* ============ chips ============ */
.chip-bar{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  padding:26px 0;
  border-bottom:1px solid var(--line-soft);
}
.chip{
  height:40px;
  padding:0 20px;
  border:1px solid var(--mist);
  border-radius:999px;
  background:transparent;
  color:var(--ink);
  font-size:14px;
  letter-spacing:.02em;
  cursor:pointer;
  white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.chip:hover{border-color:var(--cloud);color:var(--cloud);}
.chip.is-active{
  background:var(--ink);
  border-color:var(--ink);
  color:var(--paper);
}

/* ============ faq ============ */
.faq-section{padding:56px 0 96px;}
.faq-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:56px;
  align-items:start;
}
.faq-main{min-width:0;}
.faq-group{
  margin-bottom:52px;
  scroll-margin-top:110px;
}
.faq-group:last-child{margin-bottom:0;}
.faq-group-head{
  display:flex;
  align-items:baseline;
  gap:14px;
  margin-bottom:6px;
}
.group-index{
  font-family:var(--serif);
  font-size:14px;
  letter-spacing:.1em;
  color:var(--ochre);
  flex:none;
}
.faq-group-head h2{
  font-size:clamp(22px,2.6vw,27px);
  letter-spacing:-.01em;
}
.group-note{
  font-size:13px;
  color:var(--muted);
  margin:0 0 12px 44px;
}
.faq-item{border-top:1px solid var(--line);}
.faq-group .faq-item:last-child{border-bottom:1px solid var(--line);}
.faq-head{margin:0;font-family:var(--sans);}
.faq-question{
  display:flex;
  align-items:flex-start;
  gap:16px;
  width:100%;
  padding:20px 0;
  background:none;
  border:0;
  text-align:left;
  cursor:pointer;
  font-size:18px;
  font-weight:500;
  line-height:1.6;
  color:var(--ink);
  transition:color .2s var(--ease);
}
.faq-question:hover{color:var(--cloud);}
.faq-index{
  flex:none;
  min-width:22px;
  padding-top:3px;
  font-family:var(--serif);
  font-size:13px;
  letter-spacing:.06em;
  color:var(--ochre);
}
.faq-text{flex:1;min-width:0;}
.faq-icon{
  position:relative;
  flex:none;
  width:16px;
  height:16px;
  margin-top:6px;
  transition:transform .22s var(--ease);
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--cloud);
  border-radius:1px;
}
.faq-icon::before{left:0;top:7.5px;width:16px;height:1px;}
.faq-icon::after{top:0;left:7.5px;width:1px;height:16px;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-panel{
  display:grid;
  grid-template-rows:0fr;
  transition:grid-template-rows .22s var(--ease);
}
.faq-item.is-open .faq-panel{grid-template-rows:1fr;}
.faq-panel-inner{overflow:hidden;min-height:0;}
.faq-answer{
  max-width:720px;
  padding:0 0 24px 38px;
  font-size:15px;
  line-height:1.85;
  color:var(--text);
}

/* ============ help card ============ */
.help-card{
  position:sticky;
  top:104px;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px;
  transition:box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.help-card:hover{border-color:var(--mist);box-shadow:var(--shadow-hover);}
.help-card h3{
  font-size:21px;
  margin-bottom:12px;
}
.help-card p{
  font-size:14px;
  line-height:1.85;
  color:var(--text);
}
.help-card .btn-solid{width:100%;margin-top:20px;height:48px;}
.help-list{
  margin-top:20px;
  padding-top:18px;
  border-top:1px solid var(--line-soft);
  display:flex;
  flex-direction:column;
  gap:12px;
  font-size:13px;
  color:var(--muted);
  line-height:1.75;
}
.help-list strong{
  display:block;
  font-weight:500;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--ink);
  margin-bottom:2px;
}
.help-list a{color:var(--cloud);text-decoration:underline;text-underline-offset:3px;}
.help-list a:hover{color:var(--ink);}

/* ============ prepare ============ */
.prepare{
  background:var(--white);
  border-top:1px solid var(--line-soft);
  border-bottom:1px solid var(--line-soft);
  padding:80px 0;
}
.prepare-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,0.78fr);
  gap:56px;
  align-items:center;
}
.prepare h2{
  font-size:clamp(26px,3.2vw,34px);
  letter-spacing:-.01em;
}
.prepare-lead{
  margin-top:14px;
  max-width:520px;
  font-size:15px;
  color:var(--muted);
}
.prepare-list{margin-top:28px;display:flex;flex-direction:column;gap:0;}
.prepare-list li{
  display:flex;
  gap:16px;
  padding:18px 0;
  border-top:1px solid var(--line-soft);
  font-size:15px;
  line-height:1.8;
}
.prepare-list li:last-child{border-bottom:1px solid var(--line-soft);}
.prepare-num{
  flex:none;
  font-family:var(--serif);
  font-size:13px;
  letter-spacing:.08em;
  color:var(--ochre);
  padding-top:3px;
}
.prepare-figure{
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--line-soft);
  background:var(--leaf);
  aspect-ratio:16 / 10;
}
.prepare-figure img{
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center;
  filter:saturate(.88);
}
.prepare-figcap{
  margin-top:10px;
  font-size:12px;
  color:var(--muted);
}

/* ============ cta band ============ */
.cta-band{padding:76px 0;background:var(--paper);}
.cta-inner{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:36px;
  align-items:center;
  padding:44px 0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.cta-inner h2{
  font-size:clamp(24px,3vw,32px);
  letter-spacing:-.01em;
}
.cta-inner p{
  margin-top:12px;
  max-width:560px;
  font-size:15px;
  color:var(--muted);
}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ============ footer ============ */
.site-footer{
  background:var(--night);
  color:rgba(247,245,239,.76);
  padding:72px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.1fr;
  gap:48px;
  padding-bottom:48px;
  border-bottom:1px solid rgba(247,245,239,.12);
}
.footer-brand .brand{color:var(--paper);}
.footer-brand .brand-mark{color:var(--mist);}
.footer-brand p{
  margin-top:18px;
  font-size:14px;
  line-height:1.85;
  color:rgba(247,245,239,.66);
  max-width:320px;
}
.footer-col h4{
  font-family:var(--sans);
  font-size:12px;
  font-weight:500;
  letter-spacing:.12em;
  color:rgba(247,245,239,.5);
  margin-bottom:18px;
}
.footer-col a,
.footer-col span{
  display:block;
  font-size:14px;
  line-height:2;
  color:rgba(247,245,239,.76);
}
.footer-col a:hover{color:var(--paper);}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:24px;
  font-size:12px;
  color:rgba(247,245,239,.5);
}

/* ============ sheet / form ============ */
.sheet{
  position:fixed;
  inset:0;
  z-index:100;
  display:none;
}
.sheet.is-open{display:block;}
.sheet-veil{
  position:absolute;
  inset:0;
  background:rgba(18,26,24,.5);
  opacity:0;
  transition:opacity .24s var(--ease);
}
.sheet.is-open .sheet-veil{opacity:1;}
.sheet-dialog{
  position:relative;
  max-width:560px;
  margin:6vh auto;
  background:var(--white);
  border-radius:var(--radius-card);
  padding:32px;
  box-shadow:var(--shadow-modal);
  transform:translateY(8px);
  opacity:0;
  transition:transform .24s var(--ease),opacity .24s var(--ease);
  max-height:88vh;
  overflow-y:auto;
}
.sheet.is-open .sheet-dialog{transform:none;opacity:1;}
.sheet-head{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:16px;
  margin-bottom:6px;
}
.sheet-head h2{font-size:24px;}
.sheet-close{
  flex:none;
  width:36px;height:36px;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  background:transparent;
  color:var(--ink);
  font-size:18px;
  line-height:1;
  cursor:pointer;
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.sheet-close:hover{border-color:var(--ink);color:var(--cloud);}
.sheet-sub{font-size:13px;color:var(--muted);margin-bottom:22px;}
.form-row{margin-bottom:16px;}
.form-row label{
  display:block;
  font-size:13px;
  letter-spacing:.02em;
  color:var(--ink);
  margin-bottom:8px;
}
.form-row input[type="text"],
.form-row input[type="tel"],
.form-row input[type="email"],
.form-row select,
.form-row textarea{
  width:100%;
  min-height:48px;
  padding:12px 14px;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  background:var(--paper);
  color:var(--text);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
  appearance:none;
}
.form-row textarea{min-height:96px;resize:vertical;line-height:1.7;}
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus{
  outline:none;
  background:var(--white);
  border-color:var(--cloud);
  box-shadow:0 0 0 3px rgba(79,111,104,.18);
}
.form-check{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:13px;
  line-height:1.7;
  color:var(--muted);
}
.form-check input[type="checkbox"]{
  width:16px;height:16px;margin-top:3px;flex:none;accent-color:var(--ink);
}
.form-check a{color:var(--cloud);text-decoration:underline;text-underline-offset:3px;}
.form-note{
  margin-top:12px;
  font-size:12px;
  line-height:1.7;
  color:var(--muted);
}
.form-note a{color:var(--cloud);text-decoration:underline;text-underline-offset:3px;}
.form-submit{width:100%;margin-top:18px;}
.form-feedback{
  margin-top:14px;
  padding:12px 14px;
  border-radius:var(--radius-btn);
  background:var(--leaf);
  color:var(--ink);
  font-size:13px;
  line-height:1.7;
  display:none;
}
.form-feedback.is-visible{display:block;}

/* ============ reveal ============ */
.reveal{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .6s var(--ease),transform .6s var(--ease);
}
.reveal.is-in{opacity:1;transform:none;}

/* ============ responsive ============ */
@media (max-width:1199px){
  .shell{padding:0 28px;}
  .faq-layout{grid-template-columns:minmax(0,1fr) 280px;gap:40px;}
}
@media (max-width:991px){
  .nav-links{display:none;}
  .header-cta.desktop-only{display:none;}
  .nav-toggle{display:inline-block;}
  .header-inner{height:64px;gap:16px;}
  .brand{font-size:16px;}
  .faq-layout{grid-template-columns:1fr;gap:36px;}
  .help-card{position:static;}
  .prepare-grid{grid-template-columns:1fr;gap:36px;}
  .prepare{padding:64px 0;}
  .cta-inner{grid-template-columns:1fr;gap:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:767px){
  .shell{padding:0 20px;}
  .page-hero .shell{padding-top:32px;padding-bottom:36px;}
  .hero-lead{font-size:15px;}
  .faq-section{padding:40px 0 64px;}
  .faq-group{margin-bottom:40px;}
  .group-note{margin-left:0;}
  .faq-question{font-size:16.5px;gap:12px;padding:18px 0;}
  .faq-answer{padding-left:0;font-size:14.5px;}
  .faq-group-head{gap:10px;}
  .sheet-dialog{margin:0;max-width:none;height:100%;max-height:none;border-radius:0;padding:24px 20px 28px;display:flex;flex-direction:column;}
  .sheet-body{flex:1;overflow-y:auto;}
  .site-footer{padding:56px 0 24px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .cta-band{padding:56px 0;}
}
@media (max-width:575px){
  .chip-bar{flex-wrap:nowrap;overflow-x:auto;padding-bottom:20px;-webkit-overflow-scrolling:touch;}
  .chip{flex:none;}
  .hero-meta{font-size:11px;gap:8px 16px;}
  .prepare-list li{font-size:14px;gap:12px;}
  .cta-actions .btn-solid,
  .cta-actions .btn-outline{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
  .reveal{opacity:1;transform:none;}
}