/* roulang page: index */
:root{
  --ink:#12211D;
  --ink-2:#1D3129;
  --ember:#C24520;
  --ember-dark:#A93A19;
  --ember-light:#E4653A;
  --gold:#C9A86A;
  --mist:#7FB8A5;
  --sand:#F7F4EC;
  --paper:#FFFDF7;
  --text:#18221F;
  --muted:#5E6B66;
  --line:#DAD4C7;
  --err:#B23A2B;
  --r-btn:8px;
  --r-input:10px;
  --r-card:16px;
  --r-lg:20px;
  --sh-card:0 8px 24px rgba(18,33,29,.06);
  --sh-hover:0 14px 34px rgba(18,33,29,.10);
  --ease:180ms cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--sand);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{
  font-family:"Noto Serif SC","Source Han Serif SC",serif;
  color:var(--ink);
  margin:0;
  font-weight:700;
  line-height:1.28;
  letter-spacing:0;
}
p{margin:0}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--mist);outline-offset:2px;border-radius:4px}
::selection{background:rgba(194,69,32,.16)}

/* 容器与节奏 */
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:88px 0}
section[id],div[id].anchor{scroll-margin-top:92px}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--ember);
}
.eyebrow::before{content:"";width:20px;height:2px;background:var(--ember);border-radius:2px}
.eyebrow-light{color:var(--gold)}
.eyebrow-light::before{background:var(--gold)}
.sec-title{font-size:clamp(26px,3vw,34px);line-height:1.3;margin-top:14px}
.sec-lead{margin-top:16px;color:var(--muted);font-size:16.5px;line-height:1.9;max-width:60ch}
.hairline{height:1px;background:var(--line);border:0;margin:0}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:16px;font-weight:700;border:1px solid transparent;
  transition:background var(--ease),color var(--ease),transform var(--ease),border-color var(--ease),box-shadow var(--ease);
  min-width:44px;white-space:nowrap;
}
.btn-primary{background:var(--ember);color:#fff}
.btn-primary:hover{background:var(--ember-dark);transform:translateY(-1px);box-shadow:0 10px 22px rgba(194,69,32,.22)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--ink);color:var(--paper);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:42px;padding:0 18px;font-size:15px}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:700;color:var(--ink);
  border-bottom:1.5px solid var(--gold);padding-bottom:2px;
  transition:color var(--ease),border-color var(--ease);
}
.text-link:hover{color:var(--ember);border-color:var(--ember)}
.text-link .arrow{transition:transform var(--ease)}
.text-link:hover .arrow{transform:translateX(3px)}

/* 头部导航 */
.site-header{position:sticky;top:0;z-index:50;background:var(--paper);border-bottom:1px solid var(--line)}
.header-inner{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:24px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;min-height:44px}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;flex:0 0 32px}
.brand-text{
  font-family:"Noto Serif SC","Source Han Serif SC",serif;
  font-size:18px;font-weight:700;color:var(--ink);letter-spacing:.01em;white-space:nowrap;
}
.desk-nav{display:flex;align-items:center;justify-content:center;gap:28px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;gap:5px;
  height:44px;padding:0 2px;font-size:15px;font-weight:500;color:var(--ink);
  transition:color var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:6px;height:2px;
  background:var(--ember);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link:hover{color:var(--ember-dark)}
.nav-drop{position:relative}
.nav-drop-panel{
  position:absolute;top:calc(100% + 8px);left:50%;transform:translateX(-50%) translateY(6px);
  min-width:236px;padding:8px;background:var(--paper);
  border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:0 18px 40px rgba(18,33,29,.13);
  opacity:0;visibility:hidden;transition:opacity var(--ease),transform var(--ease),visibility var(--ease);
  z-index:60;
}
.nav-drop:hover .nav-drop-panel,.nav-drop:focus-within .nav-drop-panel{
  opacity:1;visibility:visible;transform:translateX(-50%) translateY(0);
}
.drop-link{
  display:flex;align-items:center;gap:10px;min-height:44px;padding:10px 12px;
  border-radius:10px;font-size:15px;color:var(--ink);
  transition:background var(--ease),color var(--ease);
}
.drop-link::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--gold);flex:0 0 6px}
.drop-link:hover{background:var(--sand);color:var(--ember-dark)}
.header-cta{display:inline-flex}
.mobile-open{display:none}
.page-chip{display:none}

/* 首屏 */
.hero{position:relative;overflow:hidden;background:var(--paper);border-bottom:1px solid var(--line)}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;padding:72px 0 64px}
.hero h1{font-size:clamp(34px,4.2vw,52px);line-height:1.2;margin-top:18px}
.hero-sub{margin-top:20px;font-size:17.5px;line-height:1.9;color:var(--muted);max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-checks{
  display:grid;grid-template-columns:repeat(3,1fr);gap:0;
  margin-top:40px;border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--sand);overflow:hidden;
}
.hero-check{padding:18px 20px;border-left:1px solid var(--line)}
.hero-check:first-child{border-left:0}
.hero-check .num{
  font-family:"Bahnschrift","DIN Alternate","Noto Sans SC",sans-serif;
  font-size:13px;font-weight:700;color:var(--gold);letter-spacing:.1em;
}
.hero-check .label{margin-top:4px;font-size:15px;font-weight:700;color:var(--ink)}
.hero-check .hint{margin-top:2px;font-size:13px;color:var(--muted);line-height:1.6}
.hero-visual{position:relative}
.hero-visual .media{box-shadow:var(--sh-card)}
.hero-visual img{width:100%;aspect-ratio:16/12;object-fit:cover}
.hero-visual::after{
  content:"";position:absolute;left:-14px;bottom:-14px;width:104px;height:104px;
  border-left:2px solid var(--gold);border-bottom:2px solid var(--gold);
  border-radius:0 0 0 18px;pointer-events:none;
}
.media{position:relative;overflow:hidden;border-radius:var(--r-lg);border:1px solid var(--line);background:var(--ink)}
.media img{display:block;width:100%;height:100%;object-fit:cover}

/* 三步 */
.step-wrap{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start}
.step-aside{position:sticky;top:104px}
.step-track{position:relative}
.step-item{
  position:relative;display:grid;grid-template-columns:88px 1fr;gap:24px;
  padding:32px 0;
}
.step-item + .step-item{border-top:1px dashed var(--line)}
.step-num{
  font-family:"Bahnschrift","DIN Alternate","Noto Sans SC",sans-serif;
  font-size:40px;font-weight:700;line-height:1;color:var(--ink);
  letter-spacing:.02em;
}
.step-num::after{content:"";display:block;width:26px;height:3px;background:var(--gold);border-radius:2px;margin-top:12px}
.step-item h3{font-size:21px;line-height:1.35}
.step-item p{margin-top:10px;color:var(--muted);font-size:16px;line-height:1.9;max-width:52ch}

/* 案例证明 */
.proof-grid{display:grid;grid-template-columns:5fr 7fr;gap:40px;align-items:stretch}
.quote-card{
  position:relative;background:var(--ink);color:rgba(255,253,247,.94);
  border-radius:var(--r-lg);padding:40px 36px;
  display:flex;flex-direction:column;justify-content:space-between;gap:28px;
  border:1px solid rgba(201,168,106,.28);
}
.quote-card::before{
  content:"";position:absolute;left:36px;top:24px;width:44px;height:3px;background:var(--gold);border-radius:2px;
}
.quote-mark{
  font-family:"Noto Serif SC",serif;font-size:52px;line-height:1;color:var(--gold);opacity:.7;
}
.quote-card blockquote{
  margin:0;font-family:"Noto Serif SC",serif;font-size:21px;line-height:1.75;color:#FFFDF7;
}
.quote-from{font-size:14px;color:rgba(255,253,247,.62);line-height:1.7}
.proof-side{display:flex;flex-direction:column;gap:24px}
.proof-side .media img{aspect-ratio:16/9;object-fit:cover;object-position:center 42%}
.proof-blocks{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.evidence{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 22px 24px;box-shadow:var(--sh-card);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.evidence:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:#C7BFAD}
.evidence .tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  background:rgba(127,184,165,.16);color:#3C6C5C;font-size:12px;font-weight:700;letter-spacing:.04em;
}
.evidence h3{font-size:17px;margin-top:12px}
.evidence p{margin-top:8px;color:var(--muted);font-size:14.5px;line-height:1.8}

/* 最新信息 */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.news-grid{display:grid;grid-template-columns:7fr 5fr;gap:32px;margin-top:40px;align-items:start}
.lead-card{
  display:flex;flex-direction:column;background:var(--paper);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-card);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.lead-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:#C7BFAD}
.lead-media{display:block;overflow:hidden;background:var(--ink)}
.lead-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 320ms ease}
.lead-card:hover .lead-media img{transform:scale(1.03)}
.lead-body{padding:26px 28px 30px}
.meta-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  background:rgba(201,168,106,.2);color:#7A5F2C;font-size:12px;font-weight:700;letter-spacing:.04em;
}
.meta-time{font-size:13px;color:var(--muted)}
.lead-body h3{font-size:22px;line-height:1.4;margin-top:14px}
.lead-body h3 a{transition:color var(--ease)}
.lead-body h3 a:hover{color:var(--ember-dark)}
.lead-body p{margin-top:12px;color:var(--muted);font-size:15.5px;line-height:1.85}
.lead-body .text-link{margin-top:20px}
.news-list{display:flex;flex-direction:column;gap:0}
.news-item{
  display:block;padding:20px 0;border-top:1px solid var(--line);
  transition:padding-left var(--ease),border-color var(--ease);
}
.news-item:first-child{border-top:0;padding-top:0}
.news-item:hover{padding-left:6px}
.news-item:hover h3{color:var(--ember-dark)}
.news-item h3{font-size:17px;line-height:1.5;margin-top:8px;transition:color var(--ease)}
.news-item p{margin-top:6px;color:var(--muted);font-size:14px;line-height:1.75}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.empty-card{
  background:var(--paper);border:1px dashed var(--line);border-radius:var(--r-card);
  padding:48px 28px;text-align:center;color:var(--muted);font-size:15px;
}
.empty-card strong{display:block;color:var(--ink);font-size:17px;margin-bottom:8px;font-family:"Noto Serif SC",serif}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start}
.faq-aside{position:sticky;top:104px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  position:relative;list-style:none;cursor:pointer;
  display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:22px 0 22px 16px;font-size:17px;font-weight:500;color:var(--ink);
  transition:color var(--ease);
  min-height:44px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:2px;border-radius:2px;
  background:var(--ember);opacity:0;transition:opacity var(--ease);
}
.faq-item summary:hover{color:var(--ember-dark)}
.faq-item[open] summary{color:var(--ember-dark)}
.faq-item[open] summary::before{opacity:1}
.faq-icon{position:relative;flex:0 0 16px;width:16px;height:16px;margin-top:7px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--ember);border-radius:2px;
  transition:transform var(--ease),opacity var(--ease);
}
.faq-icon::before{left:0;top:7px;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px}
.faq-item[open] .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-answer{padding:0 0 24px 16px;color:var(--muted);font-size:15.5px;line-height:1.9;max-width:64ch}

/* CTA 深色带 */
.cta-band{
  position:relative;background-color:var(--ink);color:#FFFDF7;
  padding:72px 0;overflow:hidden;
  border-top:1px solid rgba(201,168,106,.35);
  border-bottom:1px solid rgba(201,168,106,.35);
}
.starfield{
  background-image:
    radial-gradient(circle at 12% 24%, rgba(201,168,106,.55) 0 1px, transparent 1.6px),
    radial-gradient(circle at 68% 16%, rgba(201,168,106,.35) 0 1px, transparent 1.6px),
    radial-gradient(circle at 84% 66%, rgba(255,253,247,.26) 0 1px, transparent 1.6px),
    radial-gradient(circle at 32% 82%, rgba(201,168,106,.30) 0 1px, transparent 1.6px);
  background-size:340px 260px,420px 320px,300px 240px,380px 300px;
}
.cta-inner{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;position:relative;z-index:2}
.cta-band h2{color:#FFFDF7;font-size:clamp(26px,3vw,36px);line-height:1.3;margin-top:16px}
.cta-note{margin-top:16px;color:rgba(255,253,247,.74);font-size:15.5px;line-height:1.9;max-width:46ch}
.cta-actions{display:flex;flex-direction:column;gap:22px;align-items:flex-start}
.cta-checks{display:flex;flex-direction:column;gap:10px}
.cta-checks li{
  display:flex;align-items:flex-start;gap:10px;font-size:14.5px;line-height:1.75;
  color:rgba(255,253,247,.82);
}
.cta-checks li::before{
  content:"";flex:0 0 6px;width:6px;height:6px;margin-top:9px;border-radius:50%;background:var(--gold);
}

/* 页脚 */
.site-footer{background:var(--ink);color:rgba(255,253,247,.78);padding:64px 0 0;position:relative}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,rgba(201,168,106,0),rgba(201,168,106,.9),rgba(201,168,106,0));
}
.footer-grid{display:grid;grid-template-columns:4fr 3fr 3fr 2fr;gap:40px;padding-bottom:48px}
.footer-brand-name{
  font-family:"Noto Serif SC","Source Han Serif SC",serif;font-size:19px;font-weight:700;color:#FFFDF7;
  display:inline-flex;align-items:center;gap:10px;
}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.9;color:rgba(255,253,247,.66);max-width:32ch}
.footer-col h3{
  font-family:"Noto Sans SC","PingFang SC",sans-serif;
  font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--gold);margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:2px}
.footer-col a{
  display:inline-flex;align-items:center;min-height:38px;font-size:14.5px;
  color:rgba(255,253,247,.78);transition:color var(--ease),transform var(--ease);
}
.footer-col a:hover{color:#FFFDF7;transform:translateX(2px)}
.footer-col p{font-size:14px;line-height:1.9;color:rgba(255,253,247,.66)}
.footer-col .domain{
  display:inline-block;margin-top:10px;font-size:13px;color:var(--gold);
  border-bottom:1px solid rgba(201,168,106,.5);padding-bottom:1px;
}
.footer-bottom{
  border-top:1px solid rgba(255,253,247,.12);padding:22px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,253,247,.56);
}

/* 移动端底部 Tab */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;display:none;
  background:var(--paper);border-top:1px solid var(--line);
  box-shadow:0 -6px 18px rgba(18,33,29,.07);
  padding-bottom:env(safe-area-inset-bottom);
}
.tabbar a,.tabbar button{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  padding:9px 0 7px;font-size:11px;line-height:1;color:var(--muted);
  min-height:52px;transition:color var(--ease);
}
.tabbar .ico{display:inline-flex;width:22px;height:22px;align-items:center;justify-content:center}
.tabbar .ico svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.tabbar .tab-bar{display:block;width:16px;height:2px;border-radius:2px;background:transparent;margin-bottom:1px}
.tabbar a.is-active,.tabbar button.is-active{color:var(--ember)}
.tabbar a.is-active .tab-bar,.tabbar button.is-active .tab-bar{background:var(--ember)}

/* 分类抽屉 */
.drawer-mask{
  position:fixed;inset:0;z-index:75;background:rgba(18,33,29,.45);
  opacity:0;visibility:hidden;transition:opacity 220ms ease,visibility 220ms ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.cat-drawer{
  position:fixed;left:0;right:0;bottom:0;z-index:80;
  background:var(--paper);border-radius:20px 20px 0 0;
  box-shadow:0 -16px 40px rgba(18,33,29,.2);
  padding:18px 20px calc(22px + env(safe-area-inset-bottom));
  transform:translateY(112%);transition:transform 240ms cubic-bezier(.4,0,.2,1);
}
.cat-drawer.is-open{transform:translateY(0)}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:8px;
}
.drawer-head strong{font-size:15px;color:var(--ink);font-family:"Noto Serif SC",serif}
.drawer-close{font-size:14px;color:var(--muted);min-height:44px;padding:0 4px}
.cat-drawer a{
  display:flex;align-items:center;gap:10px;min-height:48px;
  font-size:15.5px;color:var(--ink);border-bottom:1px solid rgba(218,212,199,.6);
}
.cat-drawer a:last-child{border-bottom:0}
.cat-drawer a::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--gold)}
.cat-drawer a:active{color:var(--ember)}

/* 响应式 */
@media (max-width:1023px){
  .wrap{padding:0 24px}
  .desk-nav{display:none}
  .header-inner{grid-template-columns:1fr auto;gap:16px}
  .brand-text{font-size:16px}
  .mobile-open{display:inline-flex}
  .header-cta{display:none}
  .page-chip{
    display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
    background:var(--sand);border:1px solid var(--line);font-size:12px;color:var(--muted);
    margin-left:6px;
  }
  .tabbar{display:flex}
  body{padding-bottom:80px}
  .section{padding:64px 0}
  .hero-grid{grid-template-columns:1fr;gap:40px;padding:48px 0 56px}
  .hero-visual{order:2}
  .hero-visual::after{display:none}
  .hero-visual img{aspect-ratio:16/10}
  .step-wrap{grid-template-columns:1fr;gap:32px}
  .step-aside{position:static}
  .proof-grid{grid-template-columns:1fr;gap:24px}
  .news-grid{grid-template-columns:1fr;gap:24px}
  .faq-grid{grid-template-columns:1fr;gap:28px}
  .faq-aside{position:static}
  .cta-inner{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:640px){
  .wrap{padding:0 20px}
  .section{padding:52px 0}
  .hero h1{font-size:30px;line-height:1.28}
  .hero-sub{font-size:16px}
  .hero-actions{gap:12px}
  .hero-actions .btn{flex:1 1 100%}
  .hero-checks{grid-template-columns:1fr}
  .hero-check{border-left:0;border-top:1px solid var(--line);padding:16px 18px}
  .hero-check:first-child{border-top:0}
  .step-item{grid-template-columns:1fr;gap:12px;padding:26px 0}
  .step-num{font-size:32px}
  .step-num::after{margin-top:8px}
  .quote-card{padding:32px 24px}
  .quote-card::before{left:24px;top:18px}
  .quote-card blockquote{font-size:18px}
  .proof-blocks{grid-template-columns:1fr}
  .lead-body{padding:22px 20px 24px}
  .lead-body h3{font-size:19px}
  .faq-item summary{font-size:16px;padding:18px 0 18px 14px}
  .faq-answer{padding-left:14px;font-size:15px}
  .cta-band{padding:56px 0}
  .cta-actions{align-items:stretch}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --ink:#12211D;
  --ink-soft:#1C2F29;
  --orange:#C24520;
  --orange-deep:#A93A19;
  --orange-light:#E4653A;
  --gold:#C9A86A;
  --mist:#7FB8A5;
  --paper:#F7F4EC;
  --surface:#FFFDF7;
  --text:#18221F;
  --muted:#5E6B66;
  --line:#DAD4C7;
  --error:#B23A2B;
  --radius-btn:8px;
  --radius-input:10px;
  --radius-card:16px;
  --radius-hero:22px;
  --shadow-card:0 8px 24px rgba(18,33,29,.06);
  --shadow-hover:0 14px 34px rgba(18,33,29,.10);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
[hidden]{display:none !important;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
html .site-body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink);}
p{margin:0;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--mist);outline-offset:2px;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
@media (max-width:1023px){.wrap{padding:0 24px;}}
@media (max-width:639px){.wrap{padding:0 20px;}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--surface);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;height:72px;
}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-serif);
  font-size:20px;font-weight:700;letter-spacing:.2px;
  color:var(--ink);white-space:nowrap;
  min-height:44px;
}
.logo svg{flex:none;}
.logo span{display:inline-block;}
@media (max-width:420px){.logo{font-size:17px;gap:8px;}.logo svg{width:24px;height:24px;}}
.desk-nav{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;gap:6px;
  height:44px;padding:0 14px;
  border:none;background:transparent;
  border-radius:8px;
  font-size:15px;color:#3B4A45;font-weight:500;
  cursor:pointer;
  transition:color .18s ease,background-color .18s ease;
}
.nav-link:hover{color:var(--orange);background:#F3EEE2;}
.nav-link.is-active{color:var(--ink);font-weight:700;}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--orange);border-radius:2px;
}
.nav-drop{position:relative;}
.nav-drop-panel{
  position:absolute;top:calc(100% + 10px);left:0;
  min-width:220px;padding:8px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-hover);
  display:grid;gap:2px;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .18s ease,transform .18s ease,visibility .18s;
  z-index:90;
}
.nav-drop:hover .nav-drop-panel,
.nav-drop:focus-within .nav-drop-panel,
.nav-drop.is-open .nav-drop-panel{opacity:1;visibility:visible;transform:translateY(0);}
.drop-link{
  display:block;padding:10px 12px;border-radius:10px;
  font-size:14px;color:#33443E;
  transition:background-color .18s ease,color .18s ease;
}
.drop-link:hover,.drop-link.is-active{background:#F3EEE2;color:var(--orange);}
.header-actions{display:flex;align-items:center;gap:10px;}
@media (max-width:900px){
  .desk-nav{display:none;}
  .header-actions .btn-sm{height:38px;padding:0 14px;font-size:13px;}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;
  border:1px solid transparent;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;
  cursor:pointer;
  transition:transform .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 6px 18px rgba(194,69,32,.20);}
.btn-primary:hover{background:var(--orange-deep);transform:translateY(-1px);box-shadow:0 10px 24px rgba(194,69,32,.26);}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(194,69,32,.22);}
.btn-ghost{background:transparent;border-color:#C6C0B1;color:var(--ink);}
.btn-ghost:hover{border-color:var(--orange);color:var(--orange);transform:translateY(-1px);}
.btn-outline-light{background:transparent;border-color:rgba(243,238,226,.45);color:#F3EEE2;}
.btn-outline-light:hover{border-color:var(--gold);color:#fff;transform:translateY(-1px);}
.text-link{
  color:var(--ink);font-size:14px;font-weight:600;
  border-bottom:1px solid var(--orange);padding-bottom:2px;
  transition:color .18s ease;
}
.text-link:hover{color:var(--orange);}

/* ---------- 文章头部 ---------- */
.article-top{padding:36px 0 8px;}
.crumbs{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--muted);
}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--orange);}
.crumbs span{color:#B7B1A2;}
.crumb-cur{color:var(--ink);font-weight:600;}
.badge{
  display:inline-flex;align-items:center;
  height:28px;padding:0 12px;border-radius:999px;
  background:rgba(201,168,106,.16);
  border:1px solid rgba(201,168,106,.5);
  color:#7A5F2B;font-size:13px;font-weight:600;
}
.head-main{max-width:900px;padding:20px 0 0;}
.head-main h1{
  font-family:var(--font-serif);
  font-size:clamp(30px,3.6vw,44px);
  line-height:1.3;
  margin:16px 0 0;
}
.meta-row{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px 18px;
  margin-top:20px;font-size:13px;color:var(--muted);
}
.meta-row .dot{width:4px;height:4px;border-radius:999px;background:var(--gold);display:inline-block;}

/* ---------- 正文布局 ---------- */
.article-body-wrap{padding:36px 0 0;}
.article-grid{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;
  gap:48px;align-items:start;
}
@media (max-width:1023px){
  .article-grid{grid-template-columns:1fr;gap:40px;}
}
.article-main{max-width:760px;}
.article-panel{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  padding:36px 40px;
}
@media (max-width:639px){
  .article-panel{padding:24px 20px;border-radius:14px;}
}

/* ---------- 长文排版 ---------- */
.prose-article{font-size:17px;line-height:1.9;color:var(--text);}
.prose-article p{margin:0 0 1.1em;}
.prose-article h2{
  font-family:var(--font-serif);
  font-size:clamp(22px,2.4vw,28px);
  line-height:1.35;
  margin:2.1em 0 .7em;
  padding-left:14px;position:relative;
}
.prose-article h2::before{
  content:"";position:absolute;left:0;top:.26em;bottom:.26em;width:4px;
  background:var(--orange);border-radius:2px;
}
.prose-article h3{
  font-family:var(--font-serif);
  font-size:20px;line-height:1.4;
  margin:1.7em 0 .6em;
}
.prose-article h4{font-size:17px;margin:1.4em 0 .5em;color:var(--ink);}
.prose-article ul,.prose-article ol{margin:0 0 1.1em;padding-left:1.25em;}
.prose-article ul li{list-style:disc;margin:.35em 0;}
.prose-article ol li{list-style:decimal;margin:.35em 0;}
.prose-article li::marker{color:var(--orange);}
.prose-article blockquote{
  margin:1.5em 0;padding:16px 22px;
  background:#F2EEE3;
  border-left:3px solid var(--gold);
  border-radius:0 12px 12px 0;
  color:#33443E;font-size:16px;
}
.prose-article blockquote p:last-child{margin-bottom:0;}
.prose-article img{border-radius:14px;margin:1.5em 0;width:100%;height:auto;}
.prose-article figure{margin:1.5em 0;}
.prose-article figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;}
.prose-article a{color:var(--orange);text-decoration:underline;text-underline-offset:3px;}
.prose-article a:hover{color:var(--orange-deep);}
.prose-article strong{color:var(--ink);}
.prose-article hr{border:none;border-top:1px solid var(--line);margin:2em 0;}
.prose-article table{width:100%;border-collapse:collapse;margin:1.5em 0;font-size:15px;}
.prose-article th,.prose-article td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top;}
.prose-article th{background:#F2EEE3;color:var(--ink);font-weight:600;}
.prose-article code{background:#F2EEE3;padding:2px 6px;border-radius:6px;font-size:14px;}

/* ---------- 空态 ---------- */
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius-card);
  background:#FBF8F1;padding:40px 28px;text-align:center;
}
.empty-state h2{font-family:var(--font-serif);font-size:24px;margin-bottom:12px;padding:0;}
.empty-state h2::before{display:none;}
.empty-state p{color:var(--muted);max-width:520px;margin:0 auto 22px;}

/* ---------- 侧栏 ---------- */
.article-side{display:grid;gap:18px;position:sticky;top:96px;}
@media (max-width:1023px){.article-side{position:static;}}
.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  padding:22px;
}
.side-title{
  font-family:var(--font-serif);
  font-size:16px;margin-bottom:14px;
  display:flex;align-items:center;gap:8px;
}
.side-title::before{
  content:"";width:3px;height:16px;border-radius:2px;background:var(--orange);
}
.toc-list{display:grid;gap:2px;}
.toc-list li a{
  display:block;padding:7px 10px;border-radius:8px;
  font-size:14px;color:#42524C;line-height:1.6;
  border-left:2px solid transparent;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.toc-list li a:hover{background:#F3EEE2;color:var(--orange);border-left-color:var(--orange);}
.toc-list li.toc-sub a{padding-left:22px;font-size:13px;color:var(--muted);}
.toc-empty{font-size:13px;color:var(--muted);line-height:1.7;}
.side-card-cta{background:linear-gradient(180deg,#FFFDF7 0%,#F8F4E9 100%);}
.side-card-cta p{font-size:13px;color:var(--muted);line-height:1.8;margin-bottom:16px;}
.side-card-cta .btn + .btn{margin-top:10px;}
@media (max-width:1023px){
  .article-side{grid-template-columns:repeat(2,minmax(0,1fr));align-items:start;}
}
@media (max-width:700px){
  .article-side{grid-template-columns:1fr;}
}

/* ---------- 相关推荐 ---------- */
.related{padding:56px 0 0;}
.related-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:16px;
  margin-bottom:22px;
}
.related-head h2{font-family:var(--font-serif);font-size:24px;}
.related-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;
}
@media (max-width:900px){.related-grid{grid-template-columns:1fr;}}
.rel-card{
  display:flex;flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#C6BFAE;}
.rel-thumb{aspect-ratio:16/10;overflow:hidden;background:#E9E3D5;}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.rel-card:hover .rel-thumb img{transform:scale(1.03);}
.rel-body{padding:18px 20px 22px;display:grid;gap:8px;}
.rel-tag{font-size:12px;font-weight:600;color:#7A5F2B;letter-spacing:.4px;}
.rel-body h3{font-size:17px;line-height:1.5;font-family:var(--font-serif);}
.rel-body p{font-size:14px;color:var(--muted);line-height:1.7;}

/* ---------- CTA 深色带 ---------- */
.cta-section{padding:72px 0 80px;}
.cta-band{
  position:relative;overflow:hidden;
  background:var(--ink);
  border-radius:24px;
  padding:56px;
  color:#F3EEE2;
  display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(201,168,106,.35) 1px,transparent 1px);
  background-size:26px 26px;opacity:.35;pointer-events:none;
}
.cta-band > *{position:relative;}
.cta-band h2{
  color:#FFFDF7;font-family:var(--font-serif);
  font-size:clamp(24px,3vw,34px);line-height:1.35;
}
.cta-band p{color:rgba(243,238,226,.78);margin-top:14px;font-size:15px;line-height:1.8;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.cta-side{display:grid;gap:12px;border-left:1px solid rgba(201,168,106,.35);padding-left:32px;}
.cta-side li{display:flex;gap:10px;font-size:14px;color:rgba(243,238,226,.86);line-height:1.7;}
.cta-side li span.num{
  flex:none;width:22px;height:22px;border-radius:999px;
  border:1px solid rgba(201,168,106,.6);color:var(--gold);
  font-size:12px;display:inline-flex;align-items:center;justify-content:center;
}
@media (max-width:900px){
  .cta-band{grid-template-columns:1fr;padding:36px 26px;gap:26px;border-radius:20px;}
  .cta-side{border-left:none;padding-left:0;border-top:1px solid rgba(201,168,106,.3);padding-top:22px;}
  .cta-section{padding:56px 0 64px;}
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);
  color:rgba(243,238,226,.8);
  border-top:1px solid rgba(201,168,106,.35);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;
  padding-bottom:44px;
}
.footer-brand-name{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-serif);font-size:19px;font-weight:700;color:#FFFDF7;
  margin-bottom:14px;
}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(243,238,226,.72);max-width:340px;}
.footer-col h3{
  color:#FFFDF7;font-size:15px;margin-bottom:14px;font-weight:600;
  font-family:var(--font-sans);
}
.footer-col ul{display:grid;gap:9px;}
.footer-col a{font-size:14px;color:rgba(243,238,226,.72);transition:color .18s ease;}
.footer-col a:hover{color:var(--gold);}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(243,238,226,.72);}
.footer-col .domain{
  display:inline-block;margin-top:12px;font-size:13px;
  color:var(--gold);border-bottom:1px solid rgba(201,168,106,.5);padding-bottom:2px;
}
.footer-bottom{
  border-top:1px solid rgba(243,238,226,.14);
  padding-top:20px;padding-bottom:24px;
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:rgba(243,238,226,.6);
}
@media (max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:560px){
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .site-footer{padding-top:48px;}
}

/* ---------- 移动端底部 Tab ---------- */
.mobile-tab{
  display:none;
  position:fixed;left:0;right:0;bottom:0;z-index:95;
  background:var(--surface);
  border-top:1px solid var(--line);
  box-shadow:0 -6px 18px rgba(18,33,29,.07);
  padding-bottom:env(safe-area-inset-bottom);
}
.tab-item{
  flex:1 1 0;min-height:56px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:11px;color:#61706A;background:transparent;border:none;
  position:relative;cursor:pointer;padding:6px 2px;
  transition:color .18s ease;
}
.tab-item svg{width:22px;height:22px;}
.tab-item:hover,.tab-item:active{color:var(--orange);}
.tab-item.is-active{color:var(--orange);font-weight:600;}
.tab-item.is-active::before{
  content:"";position:absolute;top:4px;width:18px;height:2px;
  border-radius:2px;background:var(--orange);
}
.tab-drawer{
  position:fixed;left:12px;right:12px;bottom:calc(66px + env(safe-area-inset-bottom));
  z-index:96;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:16px;
  box-shadow:0 18px 40px rgba(18,33,29,.16);
  padding:10px;
  display:grid;gap:4px;
}
.tab-drawer a{
  display:block;padding:12px 14px;border-radius:10px;
  font-size:15px;color:#33443E;
}
.tab-drawer a:hover,.tab-drawer a.is-active{background:#F3EEE2;color:var(--orange);font-weight:600;}
@media (max-width:900px){
  .mobile-tab{display:flex;}
  html .site-body{padding-bottom:84px;}
}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category1 */
:root{
    --ink:#12211D;
    --orange:#C24520;
    --orange-dark:#A93A19;
    --orange-light:#E4653A;
    --gold:#C9A86A;
    --mist:#7FB8A5;
    --paper:#F7F4EC;
    --surface:#FFFDF7;
    --text:#18221F;
    --muted:#5E6B66;
    --line:#DAD4C7;
    --error:#B23A2B;
    --r-btn:8px;
    --r-input:10px;
    --r-card:16px;
    --r-hero:24px;
    --shadow:0 8px 24px rgba(18,33,29,.06);
    --shadow-hover:0 14px 34px rgba(18,33,29,.10);
    --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
    --sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  .page-body{
    margin:0;
    font-family:var(--sans);
    font-size:17px;
    line-height:1.85;
    color:var(--text);
    background:var(--paper);
    -webkit-font-smoothing:antialiased;
  }
  .page-body img{max-width:100%;display:block;}
  .page-body a{color:var(--ink);text-decoration:none;transition:color .18s ease,background .18s ease;}
  .page-body a:hover{color:var(--orange);}
  :focus-visible{outline:2px solid var(--mist);outline-offset:2px;border-radius:4px;}
  .wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
  @media(max-width:1024px){.wrap{padding:0 24px;}}
  @media(max-width:768px){.wrap{padding:0 20px;}}

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:var(--surface);
    border-bottom:1px solid var(--line);
  }
  .header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
  .brand{
    display:inline-flex;align-items:center;gap:10px;
    font-family:var(--serif);font-weight:700;font-size:19px;
    color:var(--ink);letter-spacing:.01em;white-space:nowrap;
  }
  .brand:hover{color:var(--ink);}
  .brand svg{flex:none;}
  .desk-nav{display:flex;align-items:center;gap:2px;}
  .nav-link{
    position:relative;display:inline-flex;align-items:center;gap:6px;
    height:44px;padding:0 14px;font-size:15px;color:var(--muted);
    background:none;border:0;border-radius:8px;cursor:pointer;
    transition:color .18s ease,background .18s ease;
  }
  .nav-link:hover{color:var(--ink);background:rgba(18,33,29,.05);}
  .nav-link.is-active{color:var(--ink);font-weight:600;}
  .nav-link.is-active::after{
    content:"";position:absolute;left:14px;right:14px;bottom:6px;
    height:2px;background:var(--orange);border-radius:2px;
  }
  .nav-drop{position:relative;}
  .nav-drop-panel{
    position:absolute;top:calc(100% + 8px);left:0;min-width:216px;
    display:none;flex-direction:column;padding:8px;
    background:var(--surface);border:1px solid var(--line);
    border-radius:var(--r-card);box-shadow:var(--shadow-hover);
  }
  .nav-drop.is-open .nav-drop-panel{display:flex;}
  .drop-link{
    display:block;padding:10px 12px;border-radius:10px;
    font-size:15px;color:var(--text);
  }
  .drop-link:hover{background:rgba(194,69,32,.08);color:var(--ink);}
  .drop-link.is-current{
    color:var(--orange);font-weight:600;background:rgba(194,69,32,.08);
  }
  .header-actions{display:flex;align-items:center;gap:10px;}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 22px;border-radius:var(--r-btn);
    font-family:var(--sans);font-size:15px;font-weight:600;
    border:1px solid transparent;cursor:pointer;
    transition:transform .18s ease,background .18s ease,box-shadow .18s ease,color .18s ease;
  }
  .btn-primary{background:var(--orange);color:#fff;}
  .btn-primary:hover{background:var(--orange-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(194,69,32,.22);}
  .btn-primary:active{transform:translateY(0);box-shadow:none;}
  .btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
  .btn-ghost:hover{background:rgba(18,33,29,.06);color:var(--ink);transform:translateY(-1px);}
  .btn-sm{height:40px;padding:0 16px;font-size:14px;}
  .hide-sm{display:inline;}
  .show-sm{display:none;}

  /* ---------- Hero ---------- */
  .hero{
    position:relative;
    padding:64px 0 76px;
    background:
      radial-gradient(circle at 12% 18%,rgba(201,168,106,.16) 0 1px,transparent 1px),
      linear-gradient(180deg,var(--surface) 0%,var(--paper) 100%);
    background-size:34px 34px,100% 100%;
  }
  .hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    padding:6px 14px;border-radius:999px;
    background:rgba(201,168,106,.18);color:#8A6F38;
    font-size:13px;letter-spacing:.04em;
  }
  .eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--orange);}
  .hero-title{
    font-family:var(--serif);font-weight:700;
    font-size:clamp(30px,3.6vw,46px);line-height:1.26;
    margin:20px 0 0;color:var(--ink);
  }
  .hero-title em{font-style:normal;color:var(--orange);}
  .hero-sub{margin:18px 0 0;font-size:17px;line-height:1.85;color:var(--muted);max-width:34em;}
  .hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
  .breadcrumb{
    display:flex;flex-wrap:wrap;align-items:center;gap:8px;
    font-size:13px;color:var(--muted);margin-bottom:18px;
  }
  .breadcrumb a{color:var(--muted);}
  .breadcrumb a:hover{color:var(--orange);}
  .breadcrumb .sep{color:var(--line);}
  .breadcrumb .now{color:var(--ink);font-weight:600;}

  .snap-strip{
    display:grid;grid-template-columns:repeat(3,1fr);
    margin-top:38px;border:1px solid var(--line);
    border-radius:var(--r-card);background:var(--surface);
    box-shadow:var(--shadow);overflow:hidden;
  }
  .snap-item{padding:16px 18px;border-right:1px solid var(--line);}
  .snap-item:last-child{border-right:0;}
  .snap-num{font-family:var(--serif);font-size:24px;line-height:1.15;color:var(--orange);}
  .snap-label{font-size:13px;line-height:1.6;color:var(--muted);margin-top:4px;}

  .hero-media{
    position:relative;border-radius:var(--r-hero);overflow:hidden;
    aspect-ratio:16/11;background:var(--ink);box-shadow:var(--shadow);
  }
  .hero-media img{width:100%;height:100%;object-fit:cover;object-position:center;}
  .hero-media::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(18,33,29,.10) 0%,rgba(18,33,29,.62) 100%);
  }
  .hero-media-note{
    position:absolute;left:22px;right:22px;bottom:20px;z-index:2;
    color:#fff;font-size:14px;line-height:1.7;
    display:flex;align-items:center;gap:10px;
  }
  .hero-media-note::before{
    content:"";width:22px;height:1px;background:var(--gold);flex:none;
  }

  /* ---------- 通用板块 ---------- */
  .section{padding:76px 0;}
  .section--alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
  .section-head{max-width:730px;margin-bottom:40px;}
  .section-kicker{
    font-size:13px;font-weight:600;letter-spacing:.12em;color:var(--orange);
  }
  .section-title{
    font-family:var(--serif);font-weight:700;
    font-size:clamp(24px,2.6vw,32px);line-height:1.32;
    margin:10px 0 0;color:var(--ink);
  }
  .section-desc{margin:14px 0 0;color:var(--muted);font-size:16px;line-height:1.85;}

  /* ---------- 步骤轨 ---------- */
  .step-track{position:relative;max-width:880px;display:flex;flex-direction:column;}
  .step{
    position:relative;display:grid;grid-template-columns:96px 1fr;
    gap:26px;padding-bottom:42px;
  }
  .step:last-child{padding-bottom:0;}
  .step::before{
    content:"";position:absolute;left:35px;top:76px;bottom:6px;width:1px;
    background:repeating-linear-gradient(180deg,var(--line) 0 6px,transparent 6px 13px);
  }
  .step:last-child::before{display:none;}
  .step-no{
    position:relative;z-index:1;
    width:72px;height:72px;border-radius:50%;
    display:flex;align-items:center;justify-content:center;
    font-family:var(--serif);font-size:28px;color:var(--orange);
    background:var(--surface);border:1px solid var(--line);
    box-shadow:var(--shadow);
  }
  .step-body{padding-top:6px;}
  .step-title{margin:0;font-family:var(--serif);font-size:21px;line-height:1.4;color:var(--ink);font-weight:700;}
  .step-text{margin:10px 0 0;color:var(--muted);font-size:16px;line-height:1.85;max-width:34em;}
  .step-tag{
    display:inline-flex;align-items:center;gap:6px;margin-top:14px;
    padding:4px 12px;border-radius:999px;font-size:12.5px;
    background:rgba(127,184,165,.16);color:#3C7A69;
  }

  /* ---------- 核对清单 ---------- */
  .check-panel{display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:start;}
  .figure-card{
    border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);
    background:var(--surface);box-shadow:var(--shadow);
  }
  .figure-card img{width:100%;aspect-ratio:4/3;object-fit:cover;object-position:center;}
  .figure-cap{
    padding:14px 18px;font-size:13.5px;color:var(--muted);
    border-top:1px solid var(--line);line-height:1.7;
  }
  .check-list{display:grid;gap:12px;margin:0;padding:0;list-style:none;}
  .check-item{
    display:flex;align-items:flex-start;gap:12px;
    padding:14px 18px;border:1px solid var(--line);border-radius:12px;
    background:var(--surface);font-size:15.5px;line-height:1.7;color:var(--text);
    transition:border-color .18s ease,transform .18s ease;
  }
  .check-item:hover{border-color:#C3BAA8;transform:translateY(-2px);}
  .check-icon{
    flex:none;width:22px;height:22px;margin-top:2px;border-radius:50%;
    background:rgba(194,69,32,.10);
    display:flex;align-items:center;justify-content:center;
  }
  .check-icon svg{width:12px;height:12px;}

  /* ---------- 卡点处理 ---------- */
  .issue-list{display:grid;gap:16px;max-width:880px;}
  .issue-item{
    display:grid;grid-template-columns:auto 1fr;gap:18px;
    padding:22px 26px;border-left:3px solid var(--orange);
    background:var(--surface);border-radius:0 var(--r-card) var(--r-card) 0;
    box-shadow:var(--shadow);transition:transform .18s ease,box-shadow .18s ease;
  }
  .issue-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
  .issue-no{
    font-family:var(--serif);font-size:15px;font-weight:700;color:var(--orange);
    letter-spacing:.06em;padding-top:3px;
  }
  .issue-title{margin:0;font-size:17.5px;font-weight:600;color:var(--ink);line-height:1.55;}
  .issue-text{margin:8px 0 0;font-size:15.5px;color:var(--muted);line-height:1.8;}

  /* ---------- FAQ ---------- */
  .faq-layout{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start;}
  .faq-aside{position:sticky;top:104px;}
  .faq-aside .section-title{margin-top:10px;}
  .faq-aside p{margin:16px 0 0;color:var(--muted);font-size:16px;line-height:1.85;}
  .faq-aside .aside-link{
    display:inline-flex;align-items:center;gap:8px;margin-top:22px;
    font-size:15px;font-weight:600;color:var(--orange);
    border-bottom:1px solid rgba(194,69,32,.35);padding-bottom:3px;
  }
  .faq-aside .aside-link:hover{color:var(--orange-dark);border-bottom-color:var(--orange-dark);}
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-item:first-child{border-top:1px solid var(--line);}
  .faq-q{
    position:relative;width:100%;display:flex;align-items:center;justify-content:space-between;
    gap:18px;padding:22px 4px 22px 0;background:none;border:0;cursor:pointer;
    text-align:left;font-family:var(--sans);font-size:17px;font-weight:600;
    color:var(--ink);line-height:1.6;
  }
  .faq-q::before{
    content:"";position:absolute;left:-14px;top:50%;transform:translateY(-50%);
    width:2px;height:0;background:var(--orange);transition:height .2s ease;
  }
  .faq-item.is-open .faq-q::before{height:24px;}
  .faq-q:hover{color:var(--orange);}
  .faq-icon{position:relative;flex:none;width:18px;height:18px;}
  .faq-icon::before,.faq-icon::after{
    content:"";position:absolute;background:var(--orange);
    transition:transform .2s ease,opacity .2s ease;
  }
  .faq-icon::before{left:0;right:0;top:8px;height:2px;}
  .faq-icon::after{top:0;bottom:0;left:8px;width:2px;}
  .faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0;}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
  .faq-a p{margin:0 0 24px;font-size:16px;line-height:1.85;color:var(--muted);max-width:40em;}

  /* ---------- 深色 CTA ---------- */
  .cta-band{
    position:relative;overflow:hidden;background:var(--ink);
    padding:76px 0;color:#fff;
  }
  .cta-band::before{
    content:"";position:absolute;inset:0;
    background-image:radial-gradient(rgba(201,168,106,.42) 1px,transparent 1px);
    background-size:32px 32px;opacity:.5;pointer-events:none;
  }
  .cta-inner{
    position:relative;z-index:1;
    display:grid;grid-template-columns:1fr auto;gap:36px;align-items:center;
  }
  .cta-kicker{font-size:13px;letter-spacing:.14em;color:var(--gold);font-weight:600;}
  .cta-title{
    font-family:var(--serif);font-weight:700;
    font-size:clamp(23px,2.7vw,33px);line-height:1.35;margin:12px 0 0;
  }
  .cta-sub{margin:14px 0 0;font-size:16px;line-height:1.85;color:rgba(255,255,255,.72);max-width:36em;}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
  .cta-band .btn-ghost{color:#fff;border-color:rgba(255,255,255,.42);}
  .cta-band .btn-ghost:hover{background:rgba(255,255,255,.10);color:#fff;}

  /* ---------- 页脚 ---------- */
  .site-footer{
    background:var(--ink);color:rgba(255,255,255,.78);
    border-top:1px solid rgba(201,168,106,.45);padding-top:64px;
  }
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
  .footer-brand-name{
    display:inline-flex;align-items:center;gap:10px;
    font-family:var(--serif);font-size:19px;font-weight:700;color:#fff;
  }
  .footer-brand p{margin:14px 0 0;font-size:15px;line-height:1.8;color:rgba(255,255,255,.68);}
  .footer-col h3{
    margin:0 0 14px;font-size:14px;font-weight:600;
    letter-spacing:.08em;color:var(--gold);
  }
  .footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:10px;}
  .footer-col a{color:rgba(255,255,255,.78);font-size:15px;}
  .footer-col a:hover{color:#fff;}
  .footer-col p{margin:0;font-size:15px;line-height:1.8;color:rgba(255,255,255,.68);}
  .domain{
    display:inline-block;margin-top:12px;font-size:13px;
    letter-spacing:.04em;color:var(--gold);
  }
  .footer-bottom{
    display:flex;justify-content:space-between;align-items:center;gap:16px;
    margin-top:48px;padding-top:20px;padding-bottom:24px;
    border-top:1px solid rgba(255,255,255,.12);
    font-size:13px;color:rgba(255,255,255,.5);
  }

  /* ---------- 移动底部 Tab ---------- */
  .mobile-tabbar{display:none;}
  .tab-sheet,.sheet-backdrop{display:none;}

  /* ---------- 响应式 ---------- */
  @media(max-width:1023px){
    .desk-nav{display:none;}
    .header-inner{height:64px;}
    .hero{padding:44px 0 56px;}
    .hero-grid{grid-template-columns:1fr;gap:32px;}
    .hero-media{aspect-ratio:16/10;border-radius:18px;}
    .section{padding:56px 0;}
    .check-panel{grid-template-columns:1fr;gap:28px;}
    .faq-layout{grid-template-columns:1fr;gap:28px;}
    .faq-aside{position:static;}
    .cta-inner{grid-template-columns:1fr;gap:26px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
    .footer-bottom{flex-wrap:wrap;margin-top:36px;}
    .mobile-tabbar{
      position:fixed;left:0;right:0;bottom:0;z-index:70;
      display:grid;grid-template-columns:repeat(5,1fr);
      background:var(--surface);border-top:1px solid var(--line);
      box-shadow:0 -6px 20px rgba(18,33,29,.08);
      padding-bottom:env(safe-area-inset-bottom);
    }
    .tab-item{
      display:flex;flex-direction:column;align-items:center;justify-content:center;
      gap:3px;min-height:56px;padding:6px 0;border:0;background:none;
      font-family:var(--sans);font-size:11px;color:var(--muted);cursor:pointer;
    }
    .tab-item svg{width:22px;height:22px;}
    .tab-item.is-active{color:var(--orange);}
    .tab-item.is-active .tab-label{position:relative;}
    .tab-item.is-active .tab-label::before{
      content:"";position:absolute;top:-7px;left:50%;transform:translateX(-50%);
      width:16px;height:2px;border-radius:2px;background:var(--orange);
    }
    .page-body{padding-bottom:84px;}
    .sheet-backdrop{
      display:block;position:fixed;inset:0;z-index:80;
      background:rgba(18,33,29,.45);opacity:0;pointer-events:none;
      transition:opacity .22s ease;
    }
    .sheet-backdrop.is-open{opacity:1;pointer-events:auto;}
    .tab-sheet{
      display:block;position:fixed;left:0;right:0;bottom:0;z-index:90;
      background:var(--surface);border-radius:20px 20px 0 0;
      padding:18px 20px calc(24px + env(safe-area-inset-bottom));
      transform:translateY(110%);transition:transform .26s ease;
      box-shadow:0 -14px 40px rgba(18,33,29,.18);
    }
    .tab-sheet.is-open{transform:translateY(0);}
    .sheet-title{margin:0 0 12px;font-size:13px;color:var(--muted);letter-spacing:.06em;}
    .sheet-link{
      display:flex;align-items:center;justify-content:space-between;
      min-height:48px;padding:12px 16px;margin-bottom:10px;
      border:1px solid var(--line);border-radius:12px;
      font-size:15px;color:var(--text);
    }
    .sheet-link.is-current{
      border-color:var(--orange);color:var(--orange);font-weight:600;
      background:rgba(194,69,32,.06);
    }
  }
  @media(max-width:767px){
    .brand{font-size:16px;gap:8px;}
    .brand svg{width:22px;height:22px;}
    .hide-sm{display:none;}
    .show-sm{display:inline;}
    .hero-title{font-size:30px;}
    .snap-strip{grid-template-columns:1fr;margin-top:30px;}
    .snap-item{border-right:0;border-bottom:1px solid var(--line);}
    .snap-item:last-child{border-bottom:0;}
    .step{grid-template-columns:56px 1fr;gap:16px;padding-bottom:34px;}
    .step::before{left:23px;top:56px;}
    .step-no{width:48px;height:48px;font-size:20px;}
    .step-title{font-size:18px;}
    .step-text{font-size:15.5px;}
    .issue-item{padding:18px 20px;grid-template-columns:1fr;gap:8px;}
    .faq-q{font-size:16px;padding:20px 0;}
    .btn{width:100%;}
    .hero-cta .btn,.cta-actions .btn{width:100%;}
    .header-actions .btn{width:auto;}
    .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  }
  @media(max-width:520px){
    .section{padding:44px 0;}
    .cta-band{padding:56px 0;}
    .footer-grid{grid-template-columns:1fr;gap:26px;}
  }
  @media (prefers-reduced-motion: reduce){
    *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
  }

/* roulang page: category2 */
:root{
    --ink:#12211D;
    --orange:#C24520;
    --orange-h:#A93A19;
    --orange-l:#E4653A;
    --gold:#C9A86A;
    --mist:#7FB8A5;
    --mist-soft:#E7F1ED;
    --paper:#F7F4EC;
    --surface:#FFFDF7;
    --text:#18221F;
    --muted:#5E6B66;
    --line:#DAD4C7;
    --error:#B23A2B;
    --r-btn:8px;
    --r-card:16px;
    --r-lg:22px;
    --sh-card:0 8px 24px rgba(18,33,29,.06);
    --sh-hover:0 14px 34px rgba(18,33,29,.10);
    --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
    --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;scroll-padding-top:96px;-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    background:var(--paper);
    color:var(--text);
    font-family:var(--font-sans);
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:var(--ink);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
  button{font-family:inherit;cursor:pointer;}
  h1,h2,h3,h4{font-family:var(--font-serif);color:var(--ink);margin:0;line-height:1.28;letter-spacing:0;}
  h1{font-size:clamp(30px,4.2vw,52px);line-height:1.2;font-weight:700;}
  h2{font-size:clamp(24px,2.7vw,34px);font-weight:700;}
  h3{font-size:clamp(18px,1.6vw,22px);line-height:1.4;font-weight:700;}
  p{margin:0 0 1.1em;}
  p:last-child{margin-bottom:0;}
  ul,ol{margin:0;padding:0;list-style:none;}
  :focus-visible{outline:2px solid var(--mist);outline-offset:2px;border-radius:4px;}

  .wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
  .section{padding:76px 0;}
  .section-tight{padding:56px 0;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;font-weight:500;letter-spacing:.08em;
    color:var(--orange);
    background:rgba(194,69,32,.08);
    border-radius:999px;padding:6px 14px;
  }
  .eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--orange);}
  .lead{color:var(--muted);font-size:17px;line-height:1.9;max-width:62ch;}
  .rule{height:1px;background:var(--line);border:0;margin:0;}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:46px;padding:0 22px;border-radius:var(--r-btn);
    font-size:15px;font-weight:600;border:1px solid transparent;
    transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease,color .18s ease;
  }
  .btn-primary{background:var(--orange);color:#fff;border-color:var(--orange);box-shadow:0 6px 18px rgba(194,69,32,.18);}
  .btn-primary:hover{background:var(--orange-h);border-color:var(--orange-h);transform:translateY(-1px);box-shadow:0 10px 24px rgba(194,69,32,.24);}
  .btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(194,69,32,.2);}
  .btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
  .btn-ghost:hover{background:rgba(18,33,29,.06);transform:translateY(-1px);}
  .btn-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--ink);border-bottom:1px solid var(--ink);padding-bottom:2px;min-height:44px;}
  .btn-link:hover{color:var(--orange);border-color:var(--orange);}
  .btn-on-dark{background:var(--orange);color:#fff;border-color:var(--orange);}
  .btn-on-dark:hover{background:var(--orange-l);border-color:var(--orange-l);transform:translateY(-1px);}
  .btn-outline-light{background:transparent;color:#F7F4EC;border-color:rgba(247,244,236,.5);}
  .btn-outline-light:hover{border-color:var(--gold);color:var(--gold);transform:translateY(-1px);}

  /* ---------- 头部导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:70;
    background:rgba(255,253,247,.97);
    border-bottom:1px solid var(--line);
  }
  .header-inner{display:flex;align-items:center;gap:16px;height:72px;}
  .logo{
    display:inline-flex;align-items:center;gap:10px;
    font-family:var(--font-serif);font-weight:700;font-size:18px;
    color:var(--ink);white-space:nowrap;
  }
  .logo svg{flex:none;}
  .logo:hover{color:var(--orange);}
  .mobile-page-title{
    display:none;font-size:13px;color:var(--muted);
    white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:8em;
    padding-left:12px;border-left:1px solid var(--line);
  }
  .desk-nav{margin-left:auto;display:flex;align-items:center;gap:2px;}
  .nav-link{
    position:relative;display:inline-flex;align-items:center;gap:5px;
    min-height:44px;padding:0 14px;border-radius:8px;
    font-size:15px;font-weight:500;color:var(--text);
    background:none;border:0;
  }
  .nav-link:hover{color:var(--orange);background:rgba(194,69,32,.06);}
  .nav-link.is-active{color:var(--ink);font-weight:700;}
  .nav-link.is-active::after{
    content:"";position:absolute;left:14px;right:14px;bottom:8px;height:2px;
    background:var(--orange);border-radius:2px;
  }
  .nav-drop{position:relative;}
  .nav-drop-panel{
    position:absolute;top:calc(100% + 6px);left:0;min-width:212px;
    background:var(--surface);border:1px solid var(--line);border-radius:16px;
    box-shadow:var(--sh-hover);padding:8px;
    opacity:0;visibility:hidden;transform:translateY(-6px);
    transition:opacity .18s ease,transform .18s ease,visibility .18s;
  }
  .nav-drop:hover .nav-drop-panel,
  .nav-drop:focus-within .nav-drop-panel,
  .nav-drop.is-open .nav-drop-panel{opacity:1;visibility:visible;transform:translateY(0);}
  .drop-link{
    display:block;padding:10px 14px;border-radius:8px;font-size:15px;color:var(--text);
  }
  .drop-link:hover{background:var(--paper);color:var(--orange);}
  .drop-link.is-active{background:rgba(194,69,32,.09);color:var(--orange);font-weight:700;}
  .header-cta{margin-left:12px;}
  .header-cta-sm{display:none;font-size:14px;font-weight:700;color:#fff;background:var(--orange);border-radius:8px;padding:0 14px;min-height:40px;align-items:center;}

  /* ---------- 面包屑 ---------- */
  .crumb{padding:20px 0 0;font-size:13px;color:var(--muted);}
  .crumb a{color:var(--muted);}
  .crumb a:hover{color:var(--orange);}
  .crumb .sep{margin:0 8px;color:var(--line);}
  .crumb .cur{color:var(--ink);font-weight:500;}

  /* ---------- Hero ---------- */
  .hero{position:relative;overflow:hidden;}
  .hero::before{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:radial-gradient(circle, rgba(201,168,106,.32) 1px, transparent 1px);
    background-size:44px 44px;
    opacity:.5;
    -webkit-mask-image:linear-gradient(120deg, #000 0%, transparent 62%);
    mask-image:linear-gradient(120deg, #000 0%, transparent 62%);
  }
  .hero-grid{
    position:relative;display:grid;grid-template-columns:7fr 5fr;gap:52px;
    align-items:center;padding:56px 0 72px;
  }
  .hero-copy h1{margin:18px 0 20px;}
  .hero-copy .lead{font-size:17px;max-width:46ch;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
  .hero-media{
    position:relative;border-radius:var(--r-lg);overflow:hidden;
    aspect-ratio:16 / 11;box-shadow:var(--sh-card);
    border:1px solid rgba(18,33,29,.12);
  }
  .hero-media img{width:100%;height:100%;object-fit:cover;object-position:center;}
  .hero-media::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg, rgba(18,33,29,.10) 0%, rgba(18,33,29,.55) 100%);
  }
  .hero-media figcaption{
    position:absolute;left:20px;right:20px;bottom:18px;z-index:2;
    color:#F7F4EC;font-size:13px;line-height:1.6;
    display:flex;align-items:center;gap:8px;
  }
  .hero-media figcaption .bar{width:22px;height:2px;background:var(--gold);flex:none;}

  /* ---------- 雾青提示块 ---------- */
  .notice{
    background:var(--mist-soft);
    border:1px solid rgba(127,184,165,.45);
    border-left:4px solid var(--mist);
    border-radius:var(--r-card);
    padding:24px 28px;
    display:grid;grid-template-columns:auto 1fr;gap:18px;align-items:start;
  }
  .notice .n-icon{
    width:38px;height:38px;border-radius:50%;
    background:rgba(127,184,165,.22);
    display:flex;align-items:center;justify-content:center;flex:none;
  }
  .notice h3{font-size:17px;margin-bottom:6px;color:var(--ink);}
  .notice p{font-size:15px;color:#3C4A45;line-height:1.85;}

  /* ---------- 区块标题 ---------- */
  .sec-head{max-width:720px;margin-bottom:40px;}
  .sec-head h2{margin:14px 0 14px;}
  .sec-head p{color:var(--muted);font-size:16px;}

  /* ---------- 2×2 核对卡 ---------- */
  .check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
  .check-card{
    position:relative;background:var(--surface);
    border:1px solid var(--line);border-radius:var(--r-card);
    padding:28px 26px 26px;box-shadow:var(--sh-card);
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .check-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:#C7C0AF;}
  .check-card .num{
    font-family:var(--font-serif);font-size:15px;font-weight:700;
    color:var(--orange);letter-spacing:.1em;
  }
  .check-card h3{margin:10px 0 10px;}
  .check-card p{font-size:15px;color:var(--muted);line-height:1.85;}
  .check-card .tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
  .tag{
    display:inline-block;font-size:12px;line-height:1.6;padding:3px 10px;border-radius:999px;
    background:rgba(201,168,106,.16);color:#7A6234;border:1px solid rgba(201,168,106,.4);
  }
  .tag.orange{background:rgba(194,69,32,.09);color:var(--orange);border-color:rgba(194,69,32,.28);}

  /* ---------- 纵向检查项 ---------- */
  .scan-layout{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;}
  .scan-figure{
    border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);
    box-shadow:var(--sh-card);aspect-ratio:4 / 3;
  }
  .scan-figure img{width:100%;height:100%;object-fit:cover;object-position:center;}
  .scan-list{display:flex;flex-direction:column;gap:0;}
  .scan-item{
    display:grid;grid-template-columns:auto 1fr;gap:20px;
    padding:26px 0;border-top:1px solid var(--line);
  }
  .scan-item:first-child{border-top:0;padding-top:0;}
  .scan-item .idx{
    font-family:var(--font-serif);font-size:30px;font-weight:700;color:var(--orange);
    line-height:1;padding-top:4px;min-width:42px;
  }
  .scan-item h3{margin-bottom:8px;font-size:19px;}
  .scan-item p{font-size:15px;color:var(--muted);line-height:1.85;}

  /* ---------- 警示 callout ---------- */
  .warn{
    background:#FCF0EB;
    border:1px solid #EDC9BB;
    border-left:4px solid var(--orange);
    border-radius:var(--r-card);
    padding:26px 28px;
    display:grid;grid-template-columns:auto 1fr;gap:18px;align-items:start;
  }
  .warn .w-icon{
    width:38px;height:38px;border-radius:50%;background:rgba(194,69,32,.14);
    display:flex;align-items:center;justify-content:center;flex:none;
  }
  .warn h3{font-size:18px;margin-bottom:8px;color:#8C2F13;}
  .warn p{font-size:15px;color:#5C3A30;line-height:1.85;}
  .warn ul{margin-top:12px;display:flex;flex-direction:column;gap:8px;}
  .warn ul li{position:relative;padding-left:18px;font-size:15px;color:#5C3A30;}
  .warn ul li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:2px;background:var(--orange);}

  /* ---------- FAQ ---------- */
  .faq-layout{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start;}
  .faq-aside{position:sticky;top:104px;}
  .faq-aside h2{margin:14px 0 16px;}
  .faq-aside p{color:var(--muted);font-size:16px;}
  .faq-aside .btn-link{margin-top:20px;}
  .faq-list{border-bottom:1px solid var(--line);}
  .faq-item{border-top:1px solid var(--line);}
  .faq-item summary{
    list-style:none;cursor:pointer;position:relative;
    padding:22px 44px 22px 0;
    font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;
    transition:color .18s ease;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary:hover{color:var(--orange);}
  .faq-item summary::after{
    content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);
    font-size:22px;font-weight:400;color:var(--orange);line-height:1;
  }
  .faq-item[open] summary{color:var(--ink);}
  .faq-item[open] summary::after{content:"−";}
  .faq-item[open] summary::before{
    content:"";position:absolute;left:-14px;top:26px;width:2px;height:18px;background:var(--orange);
  }
  .faq-a{padding:0 44px 24px 0;font-size:15px;color:var(--muted);line-height:1.9;}

  /* ---------- CTA 深色带 ---------- */
  .cta-band{
    position:relative;overflow:hidden;
    background:var(--ink);color:#F0EDE3;
    border-radius:var(--r-lg);
    padding:56px 52px;
    border-top:2px solid var(--gold);
  }
  .cta-band::before{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:radial-gradient(circle, rgba(201,168,106,.35) 1px, transparent 1px);
    background-size:52px 52px;opacity:.55;
  }
  .cta-inner{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:center;}
  .cta-inner h2{color:#FFFDF7;margin-bottom:14px;}
  .cta-inner p{color:rgba(240,237,227,.78);font-size:15px;max-width:44ch;}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
  .cta-points{display:flex;flex-direction:column;gap:0;}
  .cta-points li{
    display:flex;align-items:flex-start;gap:10px;
    padding:14px 0;border-top:1px solid rgba(201,168,106,.28);
    font-size:14px;color:rgba(240,237,227,.86);
  }
  .cta-points li:first-child{border-top:0;padding-top:0;}
  .cta-points li svg{flex:none;margin-top:5px;}

  /* ---------- 页脚 ---------- */
  .site-footer{
    margin-top:80px;background:var(--ink);color:rgba(240,237,227,.8);
    border-top:2px solid var(--gold);
    padding:64px 0 0;
  }
  .footer-grid{display:grid;grid-template-columns:4fr 3fr 3fr 2fr;gap:40px;}
  .footer-brand-name{
    display:inline-flex;align-items:center;gap:10px;
    font-family:var(--font-serif);font-size:18px;font-weight:700;color:#FFFDF7;
    margin-bottom:16px;
  }
  .footer-brand p{font-size:14px;line-height:1.9;color:rgba(240,237,227,.7);max-width:34ch;}
  .footer-col h3{
    font-size:15px;color:#FFFDF7;margin-bottom:16px;font-family:var(--font-sans);
    font-weight:700;letter-spacing:.04em;
  }
  .footer-col ul{display:flex;flex-direction:column;gap:10px;}
  .footer-col ul a{font-size:14px;color:rgba(240,237,227,.72);}
  .footer-col ul a:hover{color:var(--gold);}
  .footer-col p{font-size:14px;line-height:1.9;color:rgba(240,237,227,.7);}
  .footer-col .domain{
    display:inline-block;margin-top:12px;font-size:13px;
    color:var(--gold);border:1px solid rgba(201,168,106,.4);
    border-radius:999px;padding:3px 12px;
  }
  .footer-bottom{
    display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
    margin-top:48px;padding:22px 0 28px;
    border-top:1px solid rgba(201,168,106,.24);
    font-size:13px;color:rgba(240,237,227,.6);
  }

  /* ---------- 移动底部 Tab ---------- */
  .tabbar{display:none;}
  .drawer{position:fixed;inset:0;z-index:120;display:none;}
  .drawer.open{display:block;}
  .drawer-mask{position:absolute;inset:0;background:rgba(18,33,29,.48);}
  .drawer-panel{
    position:absolute;left:0;right:0;bottom:0;
    background:var(--surface);border-radius:20px 20px 0 0;
    padding:20px 20px calc(22px + env(safe-area-inset-bottom));
    box-shadow:0 -10px 34px rgba(18,33,29,.20);
  }
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
  .drawer-head span{font-family:var(--font-serif);font-weight:700;font-size:16px;color:var(--ink);}
  .drawer-close{background:none;border:0;font-size:22px;line-height:1;color:var(--muted);padding:6px 10px;min-height:44px;}
  .drawer-link{
    display:flex;align-items:center;justify-content:space-between;
    min-height:52px;padding:0 16px;border-radius:12px;
    font-size:15px;color:var(--text);border:1px solid var(--line);margin-bottom:10px;
  }
  .drawer-link.is-active{background:rgba(194,69,32,.08);border-color:rgba(194,69,32,.32);color:var(--orange);font-weight:700;}

  /* ---------- 响应式 ---------- */
  @media (max-width:1023px){
    .wrap{padding:0 24px;}
    .section{padding:60px 0;}
    .desk-nav,.header-cta{display:none;}
    .header-cta-sm{display:inline-flex;margin-left:auto;}
    .mobile-page-title{display:block;margin-left:auto;}
    .header-cta-sm{margin-left:12px;}
    .hero-grid{grid-template-columns:1fr;gap:32px;padding:36px 0 52px;}
    .hero-media{aspect-ratio:16 / 10;order:2;}
    .hero-copy{order:1;}
    .check-grid{grid-template-columns:1fr;}
    .scan-layout{grid-template-columns:1fr;gap:32px;}
    .faq-layout{grid-template-columns:1fr;gap:28px;}
    .faq-aside{position:static;}
    .cta-inner{grid-template-columns:1fr;gap:28px;}
    .cta-band{padding:44px 32px;}
    .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px;}
    body{padding-bottom:78px;}
    .tabbar{
      position:fixed;left:0;right:0;bottom:0;z-index:100;
      display:grid;grid-template-columns:repeat(5,1fr);
      background:var(--surface);border-top:1px solid var(--line);
      box-shadow:0 -4px 18px rgba(18,33,29,.08);
      padding-bottom:env(safe-area-inset-bottom);
    }
    .tab-item{
      position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;
      gap:3px;min-height:56px;font-size:11px;line-height:1.3;
      color:var(--muted);background:none;border:0;text-decoration:none;
    }
    .tab-item.is-active{color:var(--orange);font-weight:700;}
    .tab-item.is-active::before{
      content:"";position:absolute;top:7px;width:18px;height:2px;border-radius:2px;background:var(--orange);
    }
  }
  @media (max-width:767px){
    .wrap{padding:0 20px;}
    .section{padding:48px 0;}
    .logo{font-size:16px;}
    .logo svg{width:20px;height:20px;}
    .hero-copy .lead{font-size:16px;}
    .hero-actions{flex-direction:column;align-items:stretch;}
    .hero-actions .btn{width:100%;}
    .notice,.warn{padding:20px;grid-template-columns:1fr;gap:14px;}
    .check-card{padding:22px 20px;}
    .scan-item{grid-template-columns:1fr;gap:8px;padding:22px 0;}
    .scan-item .idx{font-size:24px;min-width:0;}
    .cta-band{padding:36px 22px;border-radius:var(--r-card);}
    .cta-actions{flex-direction:column;align-items:stretch;}
    .cta-actions .btn{width:100%;}
    .faq-item summary{font-size:16px;padding-right:38px;}
    .faq-item[open] summary::before{left:-10px;}
    .faq-a{padding-right:0;}
    .footer-grid{grid-template-columns:1fr;gap:28px;}
    .footer-bottom{flex-direction:column;gap:6px;}
  }
  @media (max-width:420px){
    .mobile-page-title{display:none;}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
  }

/* roulang page: category3 */
:root{
    --ink:#12211D;
    --ink-soft:#1B2E28;
    --orange:#C24520;
    --orange-dark:#A93A19;
    --orange-light:#E4653A;
    --gold:#C9A86A;
    --mist:#7FB8A5;
    --paper:#F7F4EC;
    --surface:#FFFDF7;
    --text:#18221F;
    --muted:#5E6B66;
    --line:#DAD4C7;
    --error:#B23A2B;
    --r-btn:8px;
    --r-card:16px;
    --r-hero:24px;
    --sh-card:0 8px 24px rgba(18,33,29,.06);
    --sh-hover:0 14px 34px rgba(18,33,29,.10);
    --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",STSong,serif;
    --sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
  body{
    margin:0;
    font-family:var(--sans);
    font-size:16px;
    line-height:1.85;
    color:var(--text);
    background:var(--paper);
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
  ul,ol{margin:0;padding:0;list-style:none}
  h1,h2,h3,h4,p{margin:0}
  svg{display:block}
  a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
    outline:2px solid var(--mist);outline-offset:2px;border-radius:6px;
  }
  section[id]{scroll-margin-top:96px}

  .wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
  @media (max-width:1024px){.wrap{padding:0 24px}}
  @media (max-width:768px){.wrap{padding:0 20px}}

  /* ---------- Header ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:var(--surface);
    border-bottom:1px solid var(--line);
  }
  .header-inner{height:72px;display:flex;align-items:center;gap:28px}
  .logo{display:inline-flex;align-items:center;gap:10px;font-family:var(--serif);font-weight:700;font-size:17px;color:var(--ink);letter-spacing:.01em;white-space:nowrap}
  .logo:hover{color:var(--orange)}
  .logo svg{flex:none}
  .desk-nav{display:flex;align-items:center;gap:2px}
  .nav-link{
    position:relative;display:inline-flex;align-items:center;gap:6px;
    min-height:44px;padding:0 14px;font-size:15px;color:var(--muted);
    border-radius:8px;transition:color .18s ease,background .18s ease;
  }
  .nav-link:hover{color:var(--ink);background:#F1EDE2}
  .nav-link.is-active{color:var(--ink);font-weight:600}
  .nav-link.is-active::after{
    content:"";position:absolute;left:14px;right:14px;bottom:5px;height:2px;
    background:var(--orange);border-radius:2px;
  }
  .nav-drop{position:relative}
  .nav-drop-panel{
    position:absolute;top:calc(100% - 2px);left:0;min-width:212px;
    background:var(--surface);border:1px solid var(--line);border-radius:16px;
    box-shadow:0 14px 34px rgba(18,33,29,.12);padding:8px;
    display:none;z-index:70;
  }
  .nav-drop.is-open .nav-drop-panel{display:block}
  .drop-link{display:block;padding:10px 12px;border-radius:10px;font-size:14px;color:var(--muted);transition:background .16s,color .16s}
  .drop-link:hover{background:#F1EDE2;color:var(--ink)}
  .drop-link.is-current{color:var(--orange);background:#FBF1EB;font-weight:600}
  .header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
  .mobile-mini{display:none;margin-left:auto;align-items:center;gap:10px}
  .mobile-page-tag{
    font-size:13px;color:var(--muted);max-width:120px;overflow:hidden;
    white-space:nowrap;text-overflow:ellipsis;
  }

  /* ---------- Buttons ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 22px;border-radius:var(--r-btn);
    font-size:15px;font-weight:600;border:1px solid transparent;
    transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease;
  }
  .btn-primary{background:var(--orange);color:#fff}
  .btn-primary:hover{background:var(--orange-dark);transform:translateY(-1px);box-shadow:0 8px 18px rgba(194,69,32,.24)}
  .btn-primary:active{transform:translateY(0);box-shadow:none}
  .btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent}
  .btn-ghost:hover{background:var(--ink);color:#F3EFE4;transform:translateY(-1px)}
  .btn-ghost:active{transform:translateY(0)}
  .btn-sm{height:40px;padding:0 16px;font-size:14px}
  .btn-xs{height:36px;padding:0 14px;font-size:13px;border-radius:8px}
  .text-link{color:var(--ink);font-weight:600;border-bottom:1px solid var(--ink);padding-bottom:1px;transition:color .16s,border-color .16s}
  .text-link:hover{color:var(--orange);border-color:var(--orange)}

  /* ---------- Breadcrumb ---------- */
  .breadcrumb{
    display:flex;flex-wrap:wrap;align-items:center;gap:8px;
    padding:22px 0 0;font-size:13px;color:var(--muted);
  }
  .breadcrumb a:hover{color:var(--orange)}
  .breadcrumb .sep{color:#B9B2A2}
  .breadcrumb .now{color:var(--ink);font-weight:600}

  /* ---------- Hero ---------- */
  .page-hero{padding:26px 0 56px}
  .hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    padding:6px 14px;border-radius:999px;border:1px solid var(--line);
    background:var(--surface);font-size:13px;font-weight:600;color:var(--ink);
  }
  .eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--orange)}
  .page-hero h1{
    margin-top:20px;
    font-family:var(--serif);
    font-size:clamp(32px,3.6vw,46px);
    line-height:1.24;
    color:var(--ink);
    letter-spacing:0;
  }
  .hero-sub{margin-top:18px;font-size:17px;line-height:1.85;color:var(--muted);max-width:34em}
  .hero-cta{margin-top:28px;display:flex;flex-wrap:wrap;gap:12px}
  .hero-facts{
    margin-top:36px;display:grid;grid-template-columns:repeat(3,1fr);
    border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  }
  .hero-fact{padding:16px 18px 16px 0}
  .hero-fact + .hero-fact{padding-left:18px;border-left:1px solid var(--line)}
  .hero-fact .k{font-size:12px;letter-spacing:.08em;color:var(--muted)}
  .hero-fact .v{margin-top:6px;font-size:16px;font-weight:700;color:var(--ink)}
  .hero-fact .v em{font-style:normal;color:var(--orange)}
  .hero-figure{position:relative;border-radius:var(--r-hero);overflow:hidden;box-shadow:var(--sh-card);background:var(--ink)}
  .hero-figure img{width:100%;height:100%;aspect-ratio:16/12;object-fit:cover;object-position:center right}
  .hero-figure::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(200deg,rgba(18,33,29,.10) 0%,rgba(18,33,29,.62) 100%);
  }
  .hero-figure .figcap{
    position:absolute;left:22px;right:22px;bottom:20px;z-index:2;
    color:#F3EFE4;font-size:13px;line-height:1.7;
    padding-left:14px;border-left:2px solid var(--gold);
  }

  /* ---------- Doc layout ---------- */
  .doc-section{padding:8px 0 24px}
  .doc-layout{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start}
  .doc-aside{position:sticky;top:98px;display:grid;gap:16px}
  .summary-card{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
    padding:26px 24px;box-shadow:var(--sh-card);
  }
  .summary-card h2{
    font-family:var(--serif);font-size:19px;color:var(--ink);line-height:1.4;
    padding-bottom:14px;border-bottom:1px solid var(--line);
  }
  .summary-list{margin-top:6px}
  .summary-list li{display:flex;justify-content:space-between;gap:16px;padding:12px 0;border-bottom:1px dashed #E6E0D3;font-size:14px}
  .summary-list li:last-child{border-bottom:0}
  .summary-list .k{color:var(--muted);flex:none}
  .summary-list .v{color:var(--ink);font-weight:600;text-align:right}
  .toc-card{background:transparent;border:1px solid var(--line);border-radius:var(--r-card);padding:20px 22px}
  .toc-card h3{font-size:13px;letter-spacing:.1em;color:var(--muted);font-weight:600}
  .toc-card ul{margin-top:10px;display:grid;gap:2px}
  .toc-card a{
    display:block;padding:7px 0 7px 14px;font-size:14px;color:var(--muted);
    border-left:2px solid transparent;transition:color .16s,border-color .16s;
  }
  .toc-card a:hover{color:var(--orange);border-color:var(--orange)}

  .doc-main h2.doc-title{
    font-family:var(--serif);font-size:clamp(24px,2.4vw,30px);line-height:1.35;color:var(--ink);
    padding-left:16px;border-left:3px solid var(--orange);
  }
  .doc-lead{margin-top:18px;font-size:16.5px;color:var(--muted)}
  .spec-strip{
    margin:32px 0 8px;display:grid;grid-template-columns:repeat(3,1fr);
    border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  }
  .spec-strip .cell{padding:20px 20px 20px 0}
  .spec-strip .cell + .cell{border-left:1px solid var(--line);padding-left:20px}
  .spec-strip .t{font-size:12px;letter-spacing:.08em;color:var(--muted)}
  .spec-strip .d{margin-top:8px;font-size:15px;color:var(--ink);font-weight:600;line-height:1.6}

  .def-list{margin-top:28px;border-top:1px solid var(--line)}
  .def-item{padding:28px 0;border-bottom:1px solid var(--line)}
  .def-term{
    display:flex;align-items:baseline;gap:12px;
    font-family:var(--serif);font-size:21px;line-height:1.45;color:var(--ink);
  }
  .def-idx{
    flex:none;font-family:var(--sans);font-size:13px;font-weight:700;color:var(--orange);
    letter-spacing:.06em;
  }
  .def-desc{margin-top:12px;font-size:16px;line-height:1.9;color:var(--muted)}
  .def-desc strong{color:var(--ink);font-weight:600}

  .figure-band{margin:44px 0 8px;border-radius:20px;overflow:hidden;background:var(--ink);box-shadow:var(--sh-card)}
  .figure-band img{width:100%;height:290px;object-fit:cover;object-position:center}
  .figure-band figcaption{
    padding:16px 22px;font-size:13px;color:#CFC9BA;background:var(--ink);
    display:flex;gap:10px;align-items:flex-start;line-height:1.7;
  }
  .figure-band figcaption::before{content:"";flex:none;width:2px;height:16px;background:var(--gold);margin-top:3px}

  /* ---------- FAQ ---------- */
  .faq-section{padding:64px 0 8px}
  .faq-head{max-width:640px}
  .sec-eyebrow{font-size:12px;letter-spacing:.12em;color:var(--orange);font-weight:700}
  .sec-title{font-family:var(--serif);font-size:clamp(24px,2.6vw,32px);line-height:1.35;color:var(--ink);margin-top:10px}
  .sec-desc{margin-top:12px;color:var(--muted);font-size:16px}
  .faq-list{margin-top:32px;border-top:1px solid var(--line)}
  .faq-item{border-bottom:1px solid var(--line)}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
    min-height:64px;padding:20px 4px;text-align:left;
    font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;
    transition:color .16s ease;
  }
  .faq-q:hover{color:var(--orange)}
  .faq-q .ind{
    position:relative;flex:none;width:26px;height:26px;border-radius:50%;
    border:1px solid var(--line);transition:border-color .18s,background .18s;
  }
  .faq-q .ind::before,.faq-q .ind::after{
    content:"";position:absolute;left:50%;top:50%;background:var(--ink);
    transform:translate(-50%,-50%);transition:opacity .18s,background .18s;
  }
  .faq-q .ind::before{width:11px;height:1.5px}
  .faq-q .ind::after{width:1.5px;height:11px}
  .faq-item.is-open .faq-q{color:var(--orange)}
  .faq-item.is-open .faq-q .ind{border-color:var(--orange)}
  .faq-item.is-open .faq-q .ind::before{background:var(--orange)}
  .faq-item.is-open .faq-q .ind::after{opacity:0;background:var(--orange)}
  .faq-a{display:none;padding:0 4px 24px;font-size:15.5px;line-height:1.9;color:var(--muted);max-width:52em}
  .faq-item.is-open .faq-a{display:block}

  /* ---------- Related categories ---------- */
  .rel-section{padding:64px 0 0}
  .rel-list{margin-top:28px;display:grid;gap:12px}
  .rel-item{
    display:flex;align-items:center;gap:20px;justify-content:space-between;
    padding:20px 24px;background:var(--surface);border:1px solid var(--line);
    border-radius:var(--r-card);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  }
  .rel-item:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:#C7C0B0}
  .rel-item .rl{display:flex;align-items:center;gap:18px;min-width:0}
  .rel-item .num{
    flex:none;width:38px;height:38px;border-radius:10px;display:grid;place-items:center;
    background:#F1EDE2;color:var(--ink);font-size:13px;font-weight:700;font-family:var(--sans);
  }
  .rel-item .name{font-size:16.5px;font-weight:600;color:var(--ink);font-family:var(--serif)}
  .rel-item .note{margin-top:4px;font-size:13.5px;color:var(--muted);line-height:1.6}
  .rel-item .arrow{flex:none;color:var(--orange);transition:transform .18s ease}
  .rel-item:hover .arrow{transform:translateX(4px)}

  /* ---------- CTA band ---------- */
  .cta-section{padding:72px 0 0}
  .cta-band{
    position:relative;overflow:hidden;border-radius:var(--r-hero);
    background:var(--ink);color:#F3EFE4;padding:56px 56px;
  }
  .cta-band::before{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:
      radial-gradient(circle at 12% 24%, rgba(201,168,106,.55) 0 1px, transparent 1.6px),
      radial-gradient(circle at 28% 68%, rgba(201,168,106,.40) 0 1px, transparent 1.6px),
      radial-gradient(circle at 62% 18%, rgba(201,168,106,.45) 0 1px, transparent 1.6px),
      radial-gradient(circle at 82% 52%, rgba(201,168,106,.35) 0 1px, transparent 1.6px),
      radial-gradient(circle at 46% 84%, rgba(201,168,106,.30) 0 1px, transparent 1.6px),
      radial-gradient(circle at 94% 86%, rgba(201,168,106,.40) 0 1px, transparent 1.6px);
    opacity:.9;
  }
  .cta-grid{position:relative;z-index:2;display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:center}
  .cta-band h2{font-family:var(--serif);font-size:clamp(24px,2.8vw,34px);line-height:1.34;color:#FFFDF7}
  .cta-band p{margin-top:14px;font-size:15.5px;color:#C6CEC6;line-height:1.85;max-width:36em}
  .cta-checks{margin-top:24px;display:flex;flex-wrap:wrap;gap:10px}
  .cta-checks span{
    display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:#E4DED0;
    border:1px solid rgba(201,168,106,.42);border-radius:999px;padding:6px 14px;
  }
  .cta-checks span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--gold)}
  .cta-actions{display:flex;flex-direction:column;gap:14px;align-items:flex-start}
  .cta-actions .btn-primary{min-width:200px}
  .cta-actions .btn-ghost{border-color:rgba(243,239,228,.5);color:#F3EFE4;min-width:200px}
  .cta-actions .btn-ghost:hover{background:#F3EFE4;color:var(--ink);border-color:#F3EFE4}
  .cta-note{font-size:12.5px;color:#9DA79E;line-height:1.7}

  /* ---------- Footer ---------- */
  .site-footer{background:var(--ink);color:#D9D3C5;margin-top:88px;padding-top:60px;border-top:1px solid rgba(201,168,106,.35)}
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.1fr 1fr;gap:40px}
  .footer-brand-name{
    display:flex;align-items:center;gap:10px;color:#FFFDF7;
    font-family:var(--serif);font-size:18px;font-weight:700;letter-spacing:.01em;
  }
  .footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:#A9B3AA;max-width:26em}
  .footer-col h3{font-size:13px;letter-spacing:.1em;color:var(--gold);font-weight:600}
  .footer-col ul{margin-top:14px;display:grid;gap:10px}
  .footer-col a{font-size:14px;color:#C6CEC6;transition:color .16s}
  .footer-col a:hover{color:var(--orange-light)}
  .footer-col p{margin-top:14px;font-size:13.5px;line-height:1.85;color:#A9B3AA}
  .footer-col .domain{
    display:inline-block;margin-top:14px;font-size:13px;color:#C9A86A;
    border-bottom:1px solid rgba(201,168,106,.5);padding-bottom:1px;
  }
  .footer-bottom{
    display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;
    margin-top:48px;padding:22px 0 34px;font-size:13px;color:#8E9990;
    border-top:1px solid rgba(201,168,106,.22);
  }

  /* ---------- Mobile tabbar & drawer ---------- */
  .tabbar{display:none}
  .cat-drawer,.drawer-mask{display:none}

  @media (max-width:1024px){
    .hero-grid{grid-template-columns:7fr 5fr;gap:32px}
    .doc-layout{grid-template-columns:4fr 8fr;gap:36px}
    .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
    .footer-col:last-child{grid-column:1/-1}
  }

  @media (max-width:768px){
    body{padding-bottom:84px}
    .header-inner{height:60px;gap:12px}
    .desk-nav{display:none}
    .header-actions{display:none}
    .mobile-mini{display:flex}
    .logo{font-size:15.5px}
    .logo svg{width:20px;height:20px}
    .breadcrumb{padding-top:16px;font-size:12.5px}
    .page-hero{padding:18px 0 40px}
    .hero-grid{grid-template-columns:1fr;gap:28px}
    .page-hero h1{font-size:clamp(28px,7.4vw,34px);line-height:1.28;margin-top:16px}
    .hero-sub{font-size:15.5px}
    .hero-cta{gap:10px}
    .hero-cta .btn{flex:1 1 160px}
    .hero-facts{grid-template-columns:1fr;border-bottom:0}
    .hero-fact{padding:14px 0;border-bottom:1px solid var(--line)}
    .hero-fact + .hero-fact{padding-left:0;border-left:0;border-bottom:1px solid var(--line)}
    .hero-fact:last-child{border-bottom:0}
    .hero-figure img{aspect-ratio:16/10}
    .doc-layout{grid-template-columns:1fr;gap:28px}
    .doc-aside{position:static;order:2}
    .doc-main{order:1}
    .spec-strip{grid-template-columns:1fr}
    .spec-strip .cell{padding:16px 0;border-bottom:1px solid var(--line)}
    .spec-strip .cell + .cell{border-left:0;padding-left:0}
    .spec-strip .cell:last-child{border-bottom:0}
    .def-item{padding:24px 0}
    .def-term{font-size:19px;gap:10px}
    .figure-band img{height:200px}
    .faq-section{padding:48px 0 8px}
    .faq-q{font-size:16px;padding:18px 2px;min-height:58px}
    .rel-section{padding:48px 0 0}
    .rel-item{padding:18px 16px;gap:14px}
    .rel-item .num{width:34px;height:34px}
    .rel-item .name{font-size:15.5px}
    .rel-item .note{font-size:12.5px}
    .cta-section{padding:48px 0 0}
    .cta-band{padding:32px 22px;border-radius:20px}
    .cta-grid{grid-template-columns:1fr;gap:26px}
    .cta-actions{width:100%}
    .cta-actions .btn{width:100%;min-width:0}
    .site-footer{margin-top:56px;padding-top:44px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
    .footer-brand{grid-column:1/-1}
    .footer-col:last-child{grid-column:1/-1}
    .footer-bottom{flex-direction:column;gap:8px;padding-bottom:calc(34px + 0px)}

    .tabbar{
      display:flex;position:fixed;left:0;right:0;bottom:0;z-index:70;
      background:var(--surface);border-top:1px solid var(--line);
      box-shadow:0 -6px 18px rgba(18,33,29,.08);
      padding-bottom:env(safe-area-inset-bottom);
    }
    .tab-item{
      flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;
      gap:3px;min-height:56px;font-size:11px;color:var(--muted);
      position:relative;line-height:1.2;transition:color .16s;
    }
    .tab-item svg{width:22px;height:22px}
    .tab-item.is-active{color:var(--orange)}
    .tab-item.is-active::before{
      content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
      width:22px;height:2px;border-radius:2px;background:var(--orange);
    }
    .drawer-mask{
      display:block;position:fixed;inset:0;z-index:75;background:rgba(18,33,29,.45);
      opacity:0;pointer-events:none;transition:opacity .22s ease;
    }
    .drawer-mask.is-open{opacity:1;pointer-events:auto}
    .cat-drawer{
      display:block;position:fixed;left:0;right:0;bottom:0;z-index:80;
      background:var(--surface);border-radius:20px 20px 0 0;
      padding:18px 20px calc(24px + env(safe-area-inset-bottom));
      transform:translateY(112%);transition:transform .22s ease;
      box-shadow:0 -14px 34px rgba(18,33,29,.18);
    }
    .cat-drawer.is-open{transform:translateY(0)}
    .cat-drawer .dh{display:flex;align-items:center;justify-content:space-between;padding-bottom:12px;border-bottom:1px solid var(--line)}
    .cat-drawer .dh span{font-size:14px;font-weight:600;color:var(--ink)}
    .cat-drawer .dh button{font-size:13px;color:var(--muted);min-height:44px;padding:0 6px}
    .cat-drawer ul{margin-top:8px}
    .cat-drawer li a{
      display:flex;align-items:center;justify-content:space-between;
      min-height:48px;padding:0 4px;font-size:15px;color:var(--muted);
      border-bottom:1px solid #ECE6D9;
    }
    .cat-drawer li:last-child a{border-bottom:0}
    .cat-drawer li a.is-current{color:var(--orange);font-weight:600}
  }

  @media (max-width:520px){
    .hero-cta .btn{flex:1 1 100%}
    .summary-list li{flex-direction:column;gap:2px}
    .summary-list .v{text-align:left}
    .footer-grid{grid-template-columns:1fr}
  }

  @media (prefers-reduced-motion:reduce){
    *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  }

/* roulang page: category4 */
:root{
    --ink:#12211D;
    --action:#C24520;
    --action-dark:#A93A19;
    --action-soft:#E4653A;
    --gold:#C9A86A;
    --mist:#7FB8A5;
    --paper:#F7F4EC;
    --surface:#FFFDF7;
    --text:#18221F;
    --muted:#5E6B66;
    --line:#DAD4C7;
    --error:#B23A2B;
    --r-btn:8px;
    --r-input:10px;
    --r-card:16px;
    --r-hero:22px;
    --shadow-card:0 8px 24px rgba(18,33,29,.06);
    --shadow-hover:0 14px 34px rgba(18,33,29,.10);
    --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
    --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px}
  body{
    margin:0;
    background:var(--paper);
    color:var(--text);
    font-family:var(--font-sans);
    font-size:16.5px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block}
  a{color:inherit}
  button{font-family:inherit}
  h1,h2,h3{font-family:var(--font-serif);color:var(--ink);margin:0;line-height:1.25;font-weight:700}
  h1{font-size:clamp(30px,3.6vw,46px);line-height:1.22}
  h2{font-size:clamp(24px,2.5vw,32px)}
  h3{font-size:20px;line-height:1.35}
  p{margin:0 0 1em}
  p:last-child{margin-bottom:0}
  :focus-visible{outline:2px solid var(--mist);outline-offset:2px;border-radius:4px}
  .wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
  @media (max-width:1023px){.wrap{padding:0 24px}}
  @media (max-width:767px){.wrap{padding:0 20px}}

  /* ---------- header ---------- */
  .site-header{position:sticky;top:0;z-index:60;background:#FFFDF7;border-bottom:1px solid var(--line)}
  .header-inner{display:flex;align-items:center;gap:18px;height:72px}
  .brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-family:var(--font-serif);font-size:19px;font-weight:700;white-space:nowrap}
  .brand-mark{flex:none}
  .brand:hover .brand-mark circle:first-child{stroke:var(--action)}
  .header-page-tag{display:none;font-size:12px;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:3px 10px;white-space:nowrap;max-width:96px;overflow:hidden;text-overflow:ellipsis}
  .desk-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
  .nav-link{
    position:relative;display:inline-flex;align-items:center;gap:6px;min-height:44px;padding:0 14px;
    font-size:15.5px;color:var(--ink);text-decoration:none;background:none;border:0;cursor:pointer;border-radius:6px;
    transition:color .18s ease;
  }
  .nav-link:hover{color:var(--action)}
  .nav-link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:9px;height:2px;background:var(--action);border-radius:2px}
  .nav-drop{position:relative}
  .nav-drop-panel{
    position:absolute;top:calc(100% + 6px);left:0;min-width:216px;background:var(--surface);
    border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-card);padding:8px;
    opacity:0;visibility:hidden;transform:translateY(-6px);transition:opacity .18s ease,transform .18s ease,visibility .18s ease;
  }
  .nav-drop:hover .nav-drop-panel,
  .nav-drop:focus-within .nav-drop-panel,
  .nav-drop.is-open .nav-drop-panel{opacity:1;visibility:visible;transform:none}
  .drop-link{display:flex;align-items:center;min-height:44px;padding:8px 12px;border-radius:10px;color:var(--ink);text-decoration:none;font-size:15px;transition:background .16s ease,color .16s ease}
  .drop-link:hover{background:var(--paper);color:var(--action)}
  .drop-link.is-current{background:#FBEFE8;color:var(--action);font-weight:600}
  .header-right{margin-left:12px;display:flex;align-items:center;gap:12px}

  /* ---------- buttons ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:46px;padding:0 22px;border-radius:var(--r-btn);border:1px solid transparent;
    font-size:15.5px;font-weight:600;text-decoration:none;cursor:pointer;
    transition:background .18s ease,color .18s ease,transform .18s ease,border-color .18s ease;
  }
  .btn-primary{background:var(--action);color:#fff}
  .btn-primary:hover{background:var(--action-dark);transform:translateY(-1px)}
  .btn-primary:active{transform:translateY(0)}
  .btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent}
  .btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-1px)}
  .btn-sm{min-height:40px;padding:0 16px;font-size:14.5px}
  .btn-block{width:100%}

  /* ---------- breadcrumb & tags ---------- */
  .crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);margin-bottom:16px}
  .crumbs a{text-decoration:none;color:var(--muted)}
  .crumbs a:hover{color:var(--action);text-decoration:underline;text-underline-offset:3px}
  .crumbs .sep{color:#B9B2A3}
  .crumbs .now{color:var(--ink);font-weight:600}
  .tag{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;background:#F2ECDD;color:#6B5A2E;border:1px solid #E4DAC4;font-size:13px;font-weight:600;letter-spacing:.02em}
  .tag-mist{background:#EAF2EF;color:#3C6B5C;border-color:#C9DED6}

  /* ---------- hero ---------- */
  .hero{padding:48px 0 8px}
  .hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:start}
  .hero-sub{font-size:17px;color:var(--muted);max-width:600px;margin-top:18px}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
  .hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:34px;border-top:1px solid var(--line);padding-top:22px}
  .hero-stat b{display:block;font-family:var(--font-serif);font-size:26px;color:var(--action);line-height:1.2}
  .hero-stat span{font-size:13px;color:var(--muted);display:block;margin-top:4px}
  .hero-figure{position:relative;border-radius:var(--r-hero);overflow:hidden;border:1px solid var(--line);background:var(--ink)}
  .hero-figure img{width:100%;height:auto;aspect-ratio:16/11;object-fit:cover;object-position:center}
  .hero-figure figcaption{
    position:absolute;left:0;right:0;bottom:0;padding:26px 20px 16px;color:#F2EFE6;font-size:13.5px;line-height:1.7;
    background:linear-gradient(180deg,rgba(18,33,29,0) 0%,rgba(18,33,29,.86) 70%);
  }

  /* ---------- sections ---------- */
  .section{padding:64px 0}
  .section-tight{padding:48px 0}
  .section-head{max-width:720px;margin-bottom:34px}
  .section-head .tag{margin-bottom:14px}
  .section-head p{color:var(--muted);font-size:16px;margin-top:12px}

  /* ---------- index cards ---------- */
  .index-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
  .index-card{
    display:block;text-decoration:none;background:var(--surface);border:1px solid var(--line);
    border-radius:var(--r-card);padding:20px 20px 22px;box-shadow:var(--shadow-card);
    transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  }
  .index-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#C7BFAE}
  .index-card .num{font-family:var(--font-serif);font-size:13px;color:var(--gold);letter-spacing:.14em}
  .index-card h3{font-size:17px;margin:10px 0 6px}
  .index-card p{font-size:13.5px;color:var(--muted);line-height:1.7;margin:0}
  .index-card .go{display:inline-block;margin-top:14px;font-size:13px;color:var(--action);font-weight:600}

  /* ---------- faq ---------- */
  .faq-layout{display:grid;grid-template-columns:296px 1fr;gap:56px;align-items:start}
  .faq-aside{position:sticky;top:96px}
  .faq-aside h2{font-size:24px;margin-bottom:14px}
  .faq-aside p{font-size:14.5px;color:var(--muted);line-height:1.8}
  .aside-nav{list-style:none;margin:20px 0 24px;padding:0;display:grid;gap:2px}
  .aside-nav a{display:flex;align-items:center;gap:10px;min-height:44px;padding:6px 10px;border-radius:8px;text-decoration:none;font-size:14.5px;color:var(--ink);border-left:2px solid transparent;transition:background .16s ease,color .16s ease,border-color .16s ease}
  .aside-nav a:hover{background:#F1EBDD;color:var(--action);border-left-color:var(--action)}
  .aside-nav i{font-style:normal;font-family:var(--font-serif);font-size:12.5px;color:var(--gold)}

  .faq-group{margin-bottom:40px}
  .faq-group:last-child{margin-bottom:0}
  .group-title{display:flex;align-items:baseline;gap:12px;margin-bottom:8px}
  .group-title h3{font-size:21px}
  .group-title span{font-size:12.5px;color:var(--muted)}
  .faq-item{border-top:1px solid var(--line)}
  .faq-group .faq-item:last-of-type{border-bottom:1px solid var(--line)}
  .faq-q{
    width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
    padding:19px 4px;background:none;border:0;text-align:left;cursor:pointer;
    font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;
    transition:color .18s ease,padding-left .2s ease,box-shadow .2s ease;
  }
  .faq-q:hover{color:var(--action)}
  .faq-item.is-open .faq-q{color:var(--action);padding-left:14px;box-shadow:inset 2px 0 0 var(--action)}
  .faq-icon{position:relative;width:20px;height:20px;flex:none;margin-top:5px}
  .faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--action);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
  .faq-icon::before{left:1px;right:1px;top:9px;height:2px}
  .faq-icon::after{top:1px;bottom:1px;left:9px;width:2px}
  .faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
  .faq-a-inner{padding:0 40px 22px 14px;font-size:15.5px;color:var(--muted);line-height:1.85}
  .faq-a-inner p{margin:0 0 10px}
  .faq-a-inner p:last-child{margin-bottom:0}
  .faq-a-inner strong{color:var(--ink);font-weight:600}

  /* ---------- callout & figure band ---------- */
  .callout{display:flex;gap:16px;background:#EAF2EF;border:1px solid #C9DED6;border-radius:var(--r-card);padding:22px 24px;margin-top:8px}
  .callout-icon{flex:none;width:34px;height:34px;border-radius:10px;background:#D6E7E0;display:flex;align-items:center;justify-content:center;color:#37695A}
  .callout h3{font-size:17px;margin-bottom:6px;font-family:var(--font-sans);color:#28574A}
  .callout p{font-size:14.5px;color:#3F665A;margin:0}
  .img-band{position:relative;margin:0;border-radius:var(--r-hero);overflow:hidden;border:1px solid var(--line)}
  .img-band img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;object-position:center 40%}
  .img-band figcaption{
    position:absolute;left:0;right:0;bottom:0;padding:34px 26px 18px;color:#F4F1E8;font-size:14px;line-height:1.75;
    background:linear-gradient(180deg,rgba(18,33,29,0) 0%,rgba(18,33,29,.88) 72%);
  }
  .img-band figcaption b{color:var(--gold);font-weight:600}

  /* ---------- form ---------- */
  .form-shell{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:start}
  .form-side h2{font-size:clamp(24px,2.6vw,32px)}
  .form-side p{color:var(--muted);font-size:15.5px;margin-top:14px}
  .form-points{list-style:none;margin:24px 0 0;padding:0;display:grid;gap:12px}
  .form-points li{display:flex;gap:10px;font-size:14.5px;color:var(--muted);line-height:1.75}
  .form-points svg{flex:none;margin-top:5px;color:var(--action)}
  .form-card{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:32px;box-shadow:var(--shadow-card)}
  .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
  .field{display:flex;flex-direction:column;gap:8px}
  .field-full{grid-column:1 / -1}
  .field label{font-size:14.5px;font-weight:600;color:var(--ink)}
  .field .req{color:var(--action);margin-left:2px}
  .field input,.field select,.field textarea{
    min-height:46px;border:1px solid var(--line);border-radius:var(--r-input);background:var(--surface);
    padding:0 14px;font-family:var(--font-sans);font-size:15.5px;color:var(--text);
    transition:border-color .18s ease,box-shadow .18s ease;
  }
  .field textarea{min-height:132px;padding:12px 14px;line-height:1.8;resize:vertical}
  .field input:focus,.field select:focus,.field textarea:focus{
    border-color:var(--mist);outline:none;box-shadow:0 0 0 3px rgba(127,184,165,.28);
  }
  .field-hint{font-size:12.5px;color:var(--muted)}
  .field-error{font-size:13px;color:var(--error);display:none}
  .field.is-invalid input,.field.is-invalid textarea,.field.is-invalid select{border-color:var(--error)}
  .field.is-invalid .field-error{display:block}
  .check-row{display:flex;align-items:flex-start;gap:10px;margin-top:4px}
  .check-row input{width:18px;height:18px;min-height:0;margin-top:5px;accent-color:var(--action);flex:none}
  .check-row label{font-size:14px;font-weight:400;color:var(--muted);line-height:1.75}
  .form-note{margin-top:14px;font-size:13px;color:var(--muted)}
  .form-ok{display:none;margin-top:16px;background:#EAF2EF;border:1px solid #C9DED6;color:#2F6355;border-radius:10px;padding:12px 16px;font-size:14px}
  .form-ok.is-visible{display:block}

  /* ---------- cta band ---------- */
  .cta-band{
    position:relative;overflow:hidden;background:var(--ink);color:#F3F1E8;
    border-radius:24px;padding:52px 48px;
  }
  .cta-band::before{
    content:"";position:absolute;inset:0;
    background-image:radial-gradient(rgba(201,168,106,.30) 1px,transparent 1px);
    background-size:30px 30px;opacity:.55;pointer-events:none;
  }
  .cta-band::after{
    content:"";position:absolute;right:-60px;top:-60px;width:320px;height:320px;border-radius:50%;
    border:1px solid rgba(201,168,106,.22);pointer-events:none;
  }
  .cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.3fr .7fr;gap:40px;align-items:center}
  .cta-inner h2{color:#fff}
  .cta-inner p{color:#B9C6C1;font-size:15.5px;margin-top:14px;max-width:520px}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
  .cta-band .btn-ghost{border-color:rgba(255,255,255,.5);color:#fff}
  .cta-band .btn-ghost:hover{background:#fff;color:var(--ink);border-color:#fff}
  .cta-checks{list-style:none;margin:0;padding:0;display:grid;gap:12px;border-left:1px solid rgba(201,168,106,.35);padding-left:24px}
  .cta-checks li{font-size:14px;color:#CFD8D4;display:flex;gap:9px;line-height:1.7}
  .cta-checks svg{flex:none;margin-top:4px;color:var(--gold)}

  /* ---------- footer ---------- */
  .site-footer{background:var(--ink);color:#CFD8D4;margin-top:80px;padding-top:56px;position:relative}
  .site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,rgba(201,168,106,.7),transparent)}
  .footer-grid{display:grid;grid-template-columns:1.45fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
  .footer-brand-name{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-serif);font-size:18px;color:#fff;font-weight:700}
  .footer-brand p{color:#A9B7B1;font-size:14.5px;line-height:1.8;margin:14px 0 0}
  .footer-col h3{font-size:13.5px;color:var(--gold);letter-spacing:.08em;margin:0 0 14px;font-family:var(--font-sans);font-weight:600}
  .footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:6px}
  .footer-col a{display:inline-block;padding:4px 0;color:#CFD8D4;text-decoration:none;font-size:14.5px}
  .footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
  .footer-col p{font-size:14px;color:#A9B7B1;line-height:1.8;margin:0}
  .domain{display:inline-block;margin-top:14px;font-size:13px;color:var(--gold);letter-spacing:.05em}
  .footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0 34px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:#8FA09A}

  /* ---------- mobile tabbar ---------- */
  .tabbar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;background:var(--surface);border-top:1px solid var(--line);box-shadow:0 -6px 20px rgba(18,33,29,.07);padding-bottom:env(safe-area-inset-bottom)}
  .tabbar-inner{display:flex;align-items:stretch;height:62px}
  .tab-item{
    flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
    background:none;border:0;cursor:pointer;text-decoration:none;color:var(--muted);
    font-size:11px;line-height:1.4;position:relative;min-height:44px;
  }
  .tab-item svg{width:22px;height:22px}
  .tab-item.is-active{color:var(--action)}
  .tab-item.is-active::before{content:"";position:absolute;top:6px;width:18px;height:2px;border-radius:2px;background:var(--action)}
  .cat-sheet{position:fixed;left:0;right:0;bottom:0;z-index:80;background:var(--surface);border-top:1px solid var(--line);border-radius:18px 18px 0 0;box-shadow:0 -14px 40px rgba(18,33,29,.20);padding:16px 20px calc(20px + env(safe-area-inset-bottom));transform:translateY(110%);transition:transform .22s ease;visibility:hidden}
  .cat-sheet.is-open{transform:none;visibility:visible}
  .cat-sheet-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
  .cat-sheet-head strong{font-family:var(--font-serif);font-size:16px;color:var(--ink)}
  .cat-sheet-close{background:none;border:0;color:var(--muted);font-size:13px;padding:10px;cursor:pointer}
  .sheet-link{display:flex;align-items:center;min-height:48px;padding:6px 12px;border-radius:10px;text-decoration:none;color:var(--ink);font-size:15px;border-left:2px solid transparent}
  .sheet-link:hover{background:var(--paper)}
  .sheet-link.is-current{background:#FBEFE8;color:var(--action);font-weight:600;border-left-color:var(--action)}
  .sheet-mask{position:fixed;inset:0;background:rgba(18,33,29,.42);z-index:75;opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease}
  .sheet-mask.is-open{opacity:1;visibility:visible}

  /* ---------- responsive ---------- */
  @media (max-width:1023px){
    .hero-grid{gap:36px}
    .index-grid{grid-template-columns:repeat(2,1fr)}
    .faq-layout{grid-template-columns:1fr;gap:32px}
    .faq-aside{position:static}
    .form-shell{grid-template-columns:1fr;gap:32px}
    .cta-inner{grid-template-columns:1fr;gap:26px}
    .cta-checks{border-left:0;padding-left:0;border-top:1px solid rgba(201,168,106,.3);padding-top:20px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
    .cta-band{padding:40px 32px}
  }
  @media (max-width:900px){
    .hero-grid{grid-template-columns:1fr}
    .hero-figure img{aspect-ratio:16/10}
  }
  @media (max-width:767px){
    body{font-size:16px;padding-bottom:78px}
    .desk-nav{display:none}
    .header-right{margin-left:auto}
    .header-page-tag{display:inline-block}
    .tabbar{display:block}
    .hero{padding:32px 0 4px}
    .hero-stats{grid-template-columns:repeat(2,1fr);gap:14px}
    .hero-actions .btn{flex:1 1 auto}
    .section{padding:48px 0}
    .section-tight{padding:36px 0}
    .index-grid{grid-template-columns:1fr}
    .faq-q{font-size:16px;padding:17px 2px}
    .faq-a-inner{padding:0 8px 20px 14px}
    .form-card{padding:22px}
    .form-grid{grid-template-columns:1fr}
    .cta-band{padding:32px 22px;border-radius:18px}
    .cta-actions .btn{flex:1 1 100%}
    .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:34px}
    .site-footer{margin-top:56px;padding-top:40px}
    .footer-bottom{flex-direction:column;gap:8px}
    .callout{flex-direction:column;gap:12px}
  }
  @media (max-width:479px){
    .brand{font-size:16px;gap:8px}
    .header-page-tag{display:none}
    .hero-stat b{font-size:22px}
  }
  @media (prefers-reduced-motion:reduce){
    *{animation:none!important;transition:none!important}
    html{scroll-behavior:auto}
  }