/* roulang page: index */
:root{
  --brand:#A8352B;
  --brand-hover:#8A2A22;
  --brand-soft:#C9766D;
  --olive:#33452F;
  --gold:#C4923F;
  --paper:#F7F3EA;
  --paper-alt:#EFE7D9;
  --card:#FFFFFF;
  --dark:#211E1A;
  --dark-text:#F3EDE2;
  --ink:#1C1A17;
  --ink-2:#4A443C;
  --ink-3:#857C70;
  --line:#DCD3C3;
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --radius:8px;
  --shadow-sm:0 1px 2px rgba(28,26,23,.06),0 8px 24px rgba(28,26,23,.06);
  --shadow-lg:0 12px 32px rgba(28,26,23,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--sans);font-size:16.5px;line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;letter-spacing:.01em;color:var(--ink);margin:0}
h1{font-size:clamp(30px,4.4vw,50px);line-height:1.25}
h2{font-size:clamp(23px,2.8vw,34px);line-height:1.35}
h3{font-size:21px;line-height:1.5}
p{margin:0 0 1.1em}
a{color:var(--brand);text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--brand-hover)}
img{max-width:100%;height:auto;display:block}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--gold);outline-offset:2px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.row{max-width:none;margin-left:-12px;margin-right:-12px}
.row .column,.row .columns{padding-left:12px;padding-right:12px}

/* ---------- 顶部状态条 ---------- */
.utility-strip{background:var(--dark);color:var(--dark-text);font-size:13px;letter-spacing:.02em}
.utility-strip .container{display:flex;align-items:center;justify-content:space-between;gap:16px;height:36px}
.utility-strip .u-left{display:flex;align-items:center;gap:8px;color:#CFC6B8}
.utility-dot{width:7px;height:7px;border-radius:50%;background:#7FA36A;box-shadow:0 0 0 3px rgba(127,163,106,.18)}
.utility-strip .u-right{color:#CFC6B8;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
@media (max-width:639px){
  .utility-strip .container{height:34px;font-size:12px}
  .utility-strip .u-left span:last-child{display:none}
}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,243,234,.97);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s var(--ease),background .22s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(28,26,23,.08);background:rgba(247,243,234,.95)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink);flex:0 0 auto}
.brand:hover{color:var(--ink)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-line1{font-family:var(--serif);font-size:17px;font-weight:600;letter-spacing:.02em}
.brand-line2{font-size:11.5px;color:var(--ink-3);letter-spacing:.08em;margin-top:2px}
.main-nav{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:72px;
  padding:0 14px;font-size:15px;color:var(--ink);font-weight:400;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:16px;height:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand);font-weight:500}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-cta{margin-left:14px;height:40px;padding:0 20px;font-size:14.5px}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:8px;
  background:transparent;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--ink);transition:transform .22s var(--ease),opacity .22s var(--ease)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.mobile-drawer{
  position:fixed;inset:0;z-index:70;background:var(--paper);
  padding:96px 24px 40px;overflow-y:auto;
  visibility:hidden;opacity:0;transform:translateY(-12px);
  transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s;
}
.mobile-drawer.is-open{visibility:visible;opacity:1;transform:translateY(0)}
.mobile-drawer .drawer-link{
  display:flex;align-items:center;height:56px;font-size:17px;color:var(--ink);
  border-bottom:1px solid var(--line);font-family:var(--serif);
}
.mobile-drawer .drawer-link.is-active{color:var(--brand)}
.mobile-drawer .btn{width:100%;margin-top:32px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:48px;padding:0 28px;border-radius:8px;
  font-family:var(--sans);font-size:15.5px;font-weight:500;line-height:1;
  border:1.5px solid transparent;cursor:pointer;text-decoration:none;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-primary{background:var(--brand);color:#F7F3EA;border-color:var(--brand)}
.btn-primary:hover{background:var(--brand-hover);border-color:var(--brand-hover);color:#FFF;transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--paper);border-color:var(--ink);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:500;color:var(--brand)}
.link-arrow i{font-style:normal;transition:transform .22s var(--ease)}
.link-arrow:hover i{transform:translateX(4px)}
.link-arrow:hover{text-decoration:underline;text-underline-offset:4px}

/* ---------- 通用区块 ---------- */
.section{padding:96px 0}
.section-alt{background:var(--paper-alt)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:48px;flex-wrap:wrap}
.section-head h2{margin-bottom:8px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.06em;color:var(--brand);font-weight:500;margin-bottom:14px;
}
.eyebrow::before{content:"";width:24px;height:3px;background:var(--gold);display:block}
.section-note{max-width:430px;color:var(--ink-2);font-size:15px;line-height:1.85;margin:0}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  background:var(--paper-alt);border:1px solid var(--brand-soft);color:var(--brand);
  font-size:12px;letter-spacing:.04em;font-weight:500;white-space:nowrap;
}
.badge-dark{background:rgba(243,237,226,.10);border-color:rgba(196,146,63,.55);color:#E9DFCB}

/* ---------- Hero ---------- */
.hero{padding:88px 0 96px;background:var(--paper);position:relative}
.hero-row{align-items:center}
.hero h1{margin-bottom:20px}
.hero-sub{font-family:var(--serif);font-size:clamp(17px,1.7vw,21px);color:var(--brand);margin-bottom:16px;line-height:1.6}
.hero-desc{color:var(--ink-2);max-width:520px;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px}
.hero-points li{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;background:#FFFFFF;
  border:1px solid var(--line);font-size:13px;color:var(--ink-2);
}
.hero-points li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--gold)}
.hero-figure{position:relative;margin:0;border-radius:8px;overflow:visible}
.hero-figure img{
  width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:8px;
  border:1px solid var(--line);box-shadow:var(--shadow-sm);
}
.hero-tag{
  position:absolute;left:-16px;bottom:32px;
  display:flex;flex-direction:column;gap:2px;
  background:#FFFFFF;border:1px solid var(--line);border-radius:8px;
  padding:14px 22px 14px 20px;box-shadow:var(--shadow-lg);
}
.hero-tag::before{content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;background:var(--gold);border-radius:2px}
.hero-tag strong{font-family:var(--serif);font-size:15px;color:var(--ink)}
.hero-tag span{font-size:12.5px;color:var(--ink-3);letter-spacing:.02em}

/* ---------- 要点条 ---------- */
.keybar{padding:0 0 96px;background:var(--paper)}
.keybar-inner{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  border:1px solid var(--line);border-radius:8px;overflow:hidden;background:#FFFFFF;box-shadow:var(--shadow-sm);
}
.key-item{display:flex;gap:14px;padding:26px 24px;border-right:1px solid var(--line)}
.key-item:last-child{border-right:none}
.key-icon{
  flex:0 0 auto;width:38px;height:38px;border-radius:8px;background:var(--paper-alt);
  display:flex;align-items:center;justify-content:center;color:var(--brand);
}
.key-item h4{font-family:var(--sans);font-size:15px;font-weight:500;color:var(--ink);margin:0 0 2px;letter-spacing:0}
.key-item p{font-size:13px;color:var(--ink-3);line-height:1.65;margin:0}

/* ---------- 品牌理念 ---------- */
.story-item{display:flex;align-items:center;gap:56px;margin-bottom:56px}
.story-item:last-child{margin-bottom:0}
.story-text{flex:1 1 0;min-width:0}
.story-media{flex:0 0 46%;max-width:46%}
.story-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:8px;
  border:1px solid var(--line);box-shadow:var(--shadow-sm);
}
.story-item.is-reverse{flex-direction:row-reverse}
.story-text h3{margin-bottom:14px;font-size:22px}
.story-text p{color:var(--ink-2);font-size:16px}
.story-list{margin-top:20px}
.story-list li{position:relative;padding-left:20px;font-size:15px;color:var(--ink-2);margin-bottom:10px}
.story-list li::before{content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;background:var(--brand);border-radius:2px}
.quote-card{
  margin:0 0 56px;background:var(--olive);color:#E9EFE4;border-radius:8px;
  padding:32px 36px;position:relative;box-shadow:var(--shadow-sm);
}
.quote-card::before{content:"";position:absolute;left:0;top:24px;bottom:24px;width:4px;background:var(--gold);border-radius:2px}
.quote-card p{font-family:var(--serif);font-size:19px;line-height:1.75;margin:0;color:#F1F4ED}
.quote-card cite{display:block;margin-top:12px;font-style:normal;font-size:13.5px;color:#B9C6B1;letter-spacing:.03em}

/* ---------- 精选内容 ---------- */
.feature-main{
  display:grid;grid-template-columns:1fr 1fr;gap:0;background:#FFFFFF;
  border:1px solid var(--line);border-radius:8px;overflow:hidden;height:100%;
  box-shadow:var(--shadow-sm);transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.feature-main:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.feature-main figure{margin:0;overflow:hidden}
.feature-main img{width:100%;height:100%;min-height:280px;object-fit:cover;transition:transform .4s var(--ease)}
.feature-main:hover img{transform:scale(1.03)}
.feature-main .fm-body{padding:32px 30px;display:flex;flex-direction:column;gap:14px}
.feature-main h3{font-size:23px;color:var(--ink)}
.feature-main p{color:var(--ink-3);font-size:14.5px;line-height:1.8;margin:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.feature-side{display:flex;flex-direction:column;gap:24px;height:100%}
.feature-sub{
  display:grid;grid-template-columns:126px 1fr;gap:18px;align-items:center;
  background:#FFFFFF;border:1px solid var(--line);border-radius:8px;padding:16px;
  box-shadow:var(--shadow-sm);flex:1;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.feature-sub:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.feature-sub figure{margin:0;overflow:hidden;border-radius:8px}
.feature-sub img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .4s var(--ease)}
.feature-sub:hover img{transform:scale(1.04)}
.feature-sub h3{font-size:17px;line-height:1.5;margin:10px 0 6px;color:var(--ink)}
.feature-sub p{font-size:13.5px;color:var(--ink-3);line-height:1.7;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- 最新信息 ---------- */
.news-grid .column{margin-bottom:24px}
.news-card{
  display:flex;flex-direction:column;height:100%;gap:12px;
  background:#FFFFFF;border:1px solid var(--line);border-radius:8px;
  padding:24px 24px 20px;color:inherit;box-shadow:var(--shadow-sm);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);color:inherit}
.news-card .badge{align-self:flex-start}
.news-title{
  font-size:17.5px;line-height:1.55;color:var(--ink);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:hover .news-title{color:var(--brand)}
.news-summary{
  font-size:14px;line-height:1.75;color:var(--ink-3);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--ink-3);
}
.news-arrow{color:var(--brand);font-size:15px;transition:transform .22s var(--ease)}
.news-card:hover .news-arrow{transform:translateX(4px)}
.section-foot{margin-top:24px;text-align:right}
.empty-state{
  border:1px dashed var(--line);border-radius:8px;padding:48px 24px;
  text-align:center;color:var(--ink-3);background:rgba(255,255,255,.5);
}
.empty-state svg{margin:0 auto 14px;color:var(--brand-soft)}
.empty-state p{margin:0 0 12px;font-size:15px}

/* ---------- 信任背书 ---------- */
.trust{background:var(--dark);color:var(--dark-text);padding:88px 0}
.trust h2{color:var(--dark-text);margin-bottom:12px}
.trust .trust-sub{color:#BEB4A4;font-size:15px;max-width:560px;margin-bottom:48px}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-bottom:48px}
.trust-item{position:relative;padding-left:18px}
.trust-item::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;background:var(--gold);border-radius:2px}
.trust-num{font-family:var(--serif);font-size:clamp(34px,4vw,46px);line-height:1.1;color:#F3EDE2;display:block}
.trust-num small{font-size:15px;margin-left:4px;color:#C9BFAE;font-family:var(--sans)}
.trust-label{font-size:13.5px;color:#BEB4A4;letter-spacing:.02em}
.trust-notes{display:grid;grid-template-columns:1fr 1fr;gap:32px;border-top:1px solid rgba(255,255,255,.12);padding-top:36px}
.trust-notes p{margin:0;color:#CFC6B8;font-size:14.5px;line-height:1.9}
.trust-notes strong{color:var(--dark-text);font-weight:500}

/* ---------- FAQ ---------- */
.faq-list{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:24px;
  background:transparent;border:none;padding:24px 0;text-align:left;cursor:pointer;
  font-family:var(--sans);font-size:18px;font-weight:500;color:var(--ink);line-height:1.6;
  transition:color .22s var(--ease);
}
.faq-q:hover{color:var(--brand)}
.faq-icon{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;border:1.5px solid var(--brand);
  position:relative;transition:transform .2s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:1px;
}
.faq-icon::before{left:50%;top:5px;bottom:5px;width:1.5px;transform:translateX(-50%)}
.faq-icon::after{top:50%;left:5px;right:5px;height:1.5px;transform:translateY(-50%)}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s var(--ease)}
.faq-a p{margin:0;padding:0 0 24px;color:var(--ink-2);font-size:16px;line-height:1.9;max-width:800px}

/* ---------- CTA ---------- */
.cta-band{background:var(--paper-alt);padding:88px 0}
.cta-inner{
  background:#FFFFFF;border:1px solid var(--line);border-radius:8px;
  padding:56px 56px;display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  box-shadow:var(--shadow-sm);
}
.cta-inner h2{margin-bottom:14px}
.cta-inner p{color:var(--ink-2);margin:0}
.subscribe-form{display:flex;gap:12px;align-items:flex-end;flex-wrap:wrap}
.field{flex:1 1 240px;min-width:0}
.field label{display:block;font-size:13.5px;color:var(--ink-2);margin-bottom:8px;font-weight:500}
.field input{
  width:100%;height:48px;padding:0 16px;border:1px solid var(--line);border-radius:8px;
  background:#FFFFFF;color:var(--ink);font-size:15px;font-family:var(--sans);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.field input::placeholder{color:#A79E91}
.field input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 2px rgba(168,53,43,.18)}
.subscribe-form .btn{flex:0 0 auto}
.form-note{width:100%;font-size:13px;color:var(--ink-3);margin:6px 0 0;line-height:1.7}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:var(--dark-text);padding:72px 0 0}
.footer-grid{padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-brand .brand-line1{color:var(--dark-text)}
.footer-brand .brand-line2{color:#9C9385}
.footer-desc{color:#B5AC9D;font-size:14px;line-height:1.9;max-width:320px;margin:0}
.footer-title{font-size:14px;letter-spacing:.06em;color:var(--gold);margin-bottom:18px;font-family:var(--sans);font-weight:500}
.footer-links li{margin-bottom:11px}
.footer-links a{color:#C7BEAE;font-size:14px;display:inline-block;transition:color .22s var(--ease),transform .22s var(--ease)}
.footer-links a:hover{color:var(--gold);transform:translateX(-2px)}
.footer-text{color:#B5AC9D;font-size:14px;line-height:1.9;margin:0 0 10px}
.footer-text strong{color:var(--dark-text);font-weight:500}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 26px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13px;color:#8E857A;
}
.footer-bottom a{color:#8E857A}
.footer-bottom a:hover{color:var(--gold)}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .section{padding:72px 0}
  .hero{padding:64px 0 72px}
  .keybar{padding-bottom:72px}
  .main-nav{display:none}
  .nav-toggle{display:flex}
  .header-inner{height:64px}
  .hero-figure{margin-top:40px}
  .hero-tag{left:16px;bottom:16px}
  .keybar-inner{grid-template-columns:repeat(2,1fr)}
  .key-item:nth-child(2){border-right:none}
  .key-item:nth-child(1),.key-item:nth-child(2){border-bottom:1px solid var(--line)}
  .story-item,.story-item.is-reverse{flex-direction:column;gap:28px;margin-bottom:44px}
  .story-media{flex:0 0 auto;max-width:100%;width:100%}
  .feature-main{grid-template-columns:1fr}
  .feature-main img{min-height:220px;aspect-ratio:16/10}
  .trust{padding:72px 0}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
  .trust-notes{grid-template-columns:1fr;gap:20px}
  .cta-inner{grid-template-columns:1fr;gap:32px;padding:40px}
  .section-head{margin-bottom:36px}
}
@media (max-width:639px){
  body{font-size:16px}
  .container{padding:0 16px}
  .section{padding:52px 0}
  .hero{padding:48px 0 52px}
  .keybar{padding-bottom:52px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .keybar-inner{grid-template-columns:1fr}
  .key-item{border-right:none;border-bottom:1px solid var(--line)}
  .key-item:last-child{border-bottom:none}
  .feature-sub{grid-template-columns:1fr}
  .feature-sub img{aspect-ratio:16/9}
  .trust-grid{grid-template-columns:1fr 1fr;gap:20px}
  .cta-inner{padding:28px 22px;border-radius:8px}
  .subscribe-form{flex-direction:column;align-items:stretch}
  .subscribe-form .btn{width:100%}
  .section-foot{text-align:left}
  .faq-q{font-size:16.5px;padding:20px 0}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .hero-tag{position:static;margin-top:16px;left:auto;bottom:auto}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category1 */
:root{
  --brick:#A8352B;
  --brick-dark:#8A2A22;
  --brick-light:#C9766D;
  --olive:#33452F;
  --copper:#C4923F;
  --paper:#F7F3EA;
  --paper-2:#EFE7D9;
  --card:#FFFFFF;
  --dark:#211E1A;
  --dark-text:#F3EDE2;
  --ink:#1C1A17;
  --ink-2:#4A443C;
  --ink-3:#857C70;
  --line:#DCD3C3;
  --radius:8px;
  --pill:999px;
  --shadow-sm:0 1px 2px rgba(28,26,23,.06),0 8px 24px rgba(28,26,23,.06);
  --shadow-lg:0 12px 32px rgba(28,26,23,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
  --nav-h:72px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.9;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brick);text-decoration:none;transition:color 220ms var(--ease);}
a:hover{color:var(--brick-dark);}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--copper);outline-offset:2px;border-radius:4px;}
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:600;letter-spacing:.01em;color:var(--ink);margin:0 0 16px;line-height:1.35;}
h1{font-size:clamp(30px,4.4vw,50px);line-height:1.25;}
h2{font-size:clamp(23px,2.8vw,34px);line-height:1.35;}
h3{font-size:20px;line-height:1.5;}
p{margin:0 0 1.1em;}
ul,ol{margin:0 0 1.1em;padding-left:1.3em;}
button{font-family:inherit;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.container .row{max-width:none;margin-left:-12px;margin-right:-12px;}
.container .column{padding-left:12px;padding-right:12px;}
.row-flex{display:flex;flex-wrap:wrap;align-items:center;}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-alt{background:var(--paper-2);}
.section-line{border-top:1px solid var(--line);}

/* 顶部信息条 */
.utility-strip{background:var(--dark);color:var(--dark-text);font-size:13px;line-height:1.7;}
.utility-inner{display:flex;justify-content:space-between;align-items:center;gap:16px;min-height:36px;flex-wrap:wrap;padding-top:4px;padding-bottom:4px;}
.utility-note{color:#D8CFC1;}
.utility-meta{color:#E8DFD0;}
.utility-meta strong{color:var(--copper);font-weight:500;}

/* 头部与导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,243,234,.96);
  border-bottom:1px solid var(--line);
  transition:box-shadow 220ms var(--ease),background-color 220ms var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(28,26,23,.10);background:rgba(247,243,234,.95);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:var(--nav-h);}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{display:inline-flex;width:34px;height:34px;flex:0 0 34px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-line1{font-family:var(--font-serif);font-size:16px;font-weight:600;letter-spacing:.06em;color:var(--ink);}
.brand-line2{font-size:12.5px;letter-spacing:.1em;color:var(--ink-3);}
.main-nav{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:10px 14px;
  font-size:15px;
  color:var(--ink);
  font-weight:400;
  transition:color 220ms var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--brick);transform:scaleX(0);transform-origin:left center;
  transition:transform 220ms var(--ease);
}
.nav-link:hover{color:var(--brick);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brick);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-cta{margin-left:12px;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--card);cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--ink);transition:transform 220ms var(--ease),opacity 220ms var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-drawer{
  display:none;position:fixed;left:0;right:0;top:calc(var(--nav-h) + 36px);bottom:0;z-index:55;
  background:var(--paper);padding:24px 24px 32px;overflow-y:auto;border-top:1px solid var(--line);
}
.mobile-drawer.is-open{display:block;}
.drawer-links{display:flex;flex-direction:column;margin-bottom:24px;}
.drawer-links a{display:flex;align-items:center;min-height:56px;font-size:17px;color:var(--ink);border-bottom:1px solid var(--line);}
.drawer-links a.is-active{color:var(--brick);font-weight:600;}
.drawer-cta{display:block;width:100%;text-align:center;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 28px;border-radius:var(--radius);
  font-size:16px;font-weight:500;line-height:1;
  border:1.5px solid transparent;cursor:pointer;
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),background-color 220ms var(--ease),color 220ms var(--ease),border-color 220ms var(--ease);
}
.btn-primary{background:var(--brick);color:#FBF7EF;border-color:var(--brick);}
.btn-primary:hover{background:var(--brick-dark);border-color:var(--brick-dark);color:#FBF7EF;transform:translateY(-2px);box-shadow:var(--shadow-lg);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-sm);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:var(--paper);transform:translateY(-2px);box-shadow:var(--shadow-lg);}
.btn-ghost:active{transform:translateY(0);}
.btn-link{
  display:inline-flex;align-items:center;gap:8px;padding:0;border:0;background:none;
  color:var(--brick);font-size:15.5px;font-weight:500;cursor:pointer;
}
.btn-link .arrow{transition:transform 220ms var(--ease);}
.btn-link:hover{color:var(--brick-dark);text-decoration:underline;text-underline-offset:4px;}
.btn-link:hover .arrow{transform:translateX(4px);}

/* 面包屑 */
.breadcrumb-wrap{padding:20px 0 0;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);list-style:none;margin:0;padding:0;}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px;max-width:100%;}
.breadcrumb li+li::before{content:"/";color:var(--line);}
.breadcrumb a{color:var(--ink-3);}
.breadcrumb a:hover{color:var(--brick);}
.breadcrumb .current{color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:280px;}

/* 首屏 */
.page-hero{padding:40px 0 88px;background:linear-gradient(180deg,var(--paper) 0%,var(--paper) 70%,var(--paper-2) 100%);}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;letter-spacing:.04em;color:var(--brick);
  background:rgba(168,53,43,.07);border:1px solid var(--brick-light);
  border-radius:var(--pill);padding:5px 14px;margin-bottom:20px;
}
.eyebrow::before{content:"";width:3px;height:12px;background:var(--copper);border-radius:2px;}
.page-hero h1{max-width:16em;}
.hero-lead{font-size:17px;color:var(--ink-2);max-width:640px;line-height:1.95;margin-bottom:12px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.status-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);padding:24px;border-left:4px solid var(--copper);
}
.status-card .card-label{font-size:13px;letter-spacing:.06em;color:var(--ink-3);margin:0 0 6px;}
.status-card .card-value{font-family:var(--font-serif);font-size:22px;color:var(--ink);margin:0 0 18px;line-height:1.4;}
.status-card .card-value.live{color:var(--olive);}
.status-card dl{margin:0;display:grid;gap:10px;}
.status-card dt{font-size:13px;color:var(--ink-3);margin:0;}
.status-card dd{margin:0 0 6px;font-size:15px;color:var(--ink-2);}

/* 板块标题 */
.section-head{max-width:720px;margin-bottom:48px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-title{position:relative;padding-left:0;}
.section-title::before{
  content:"";display:block;width:40px;height:3px;background:var(--copper);border-radius:2px;margin-bottom:18px;
}
.section-head.center .section-title::before{margin-left:auto;margin-right:auto;}
.section-sub{color:var(--ink-2);font-size:16.5px;margin:0;}

/* 图文并排 */
.split-figure{margin:0;}
.split-figure img{
  width:100%;border-radius:var(--radius);box-shadow:var(--shadow-sm);object-fit:cover;aspect-ratio:4/3;
  border:1px solid var(--line);
}
.figure-caption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:12px;}
.split-text h2{margin-bottom:20px;}
.split-text p{color:var(--ink-2);}

/* 序号说明 */
.step-list{list-style:none;margin:32px 0 0;padding:0;display:grid;gap:20px;}
.step-list li{display:flex;gap:16px;align-items:flex-start;}
.step-index{
  flex:0 0 34px;width:34px;height:34px;border-radius:50%;
  background:rgba(168,53,43,.08);border:1px solid var(--brick-light);
  color:var(--brick);font-family:var(--font-serif);font-size:15px;font-weight:600;
  display:inline-flex;align-items:center;justify-content:center;
}
.step-body h3{font-size:17px;margin:0 0 4px;font-family:var(--font-sans);font-weight:500;color:var(--ink);}
.step-body p{margin:0;font-size:15px;color:var(--ink-2);line-height:1.85;}

/* 纵向条目列表 */
.entry-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--line);}
.entry-item{
  display:flex;gap:24px;align-items:flex-start;
  padding:28px 4px;min-height:96px;
  border-bottom:1px solid var(--line);
  transition:background-color 220ms var(--ease),padding-left 220ms var(--ease);
}
.entry-item:hover{background:rgba(255,255,255,.7);padding-left:12px;}
.entry-num{
  flex:0 0 64px;font-family:var(--font-serif);font-size:34px;line-height:1;color:var(--brick-light);
  font-weight:600;letter-spacing:.02em;padding-top:2px;
}
.entry-item:hover .entry-num{color:var(--brick);}
.entry-body h3{margin:0 0 6px;font-size:20px;}
.entry-body p{margin:0;font-size:15.5px;color:var(--ink-2);line-height:1.85;}

/* 提示框 */
.notice-box{
  background:#F4F1E7;border:1px solid var(--olive);border-radius:var(--radius);
  padding:32px;box-shadow:var(--shadow-sm);
}
.notice-box h2{font-size:22px;margin-bottom:18px;color:var(--olive);}
.notice-list{list-style:none;margin:0;padding:0;display:grid;gap:14px;}
.notice-list li{position:relative;padding-left:22px;font-size:15.5px;color:var(--ink-2);line-height:1.85;}
.notice-list li::before{
  content:"";position:absolute;left:0;top:.68em;width:8px;height:8px;background:var(--copper);border-radius:2px;
}

/* CTA 条 */
.cta-band{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{margin-bottom:8px;font-size:clamp(22px,2.5vw,30px);}
.cta-inner p{margin:0;color:var(--ink-2);font-size:16px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* 页脚 */
.site-footer{background:var(--dark);color:var(--dark-text);padding:72px 0 0;}
.footer-grid{display:flex;flex-wrap:wrap;}
.footer-brand{display:inline-flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .brand-line1{color:#F3EDE2;font-family:var(--font-serif);font-size:16px;letter-spacing:.06em;}
.footer-brand .brand-line2{color:#B8AE9F;font-size:12.5px;letter-spacing:.1em;}
.footer-desc{color:#B8AE9F;font-size:14px;line-height:1.85;max-width:320px;margin:0;}
.footer-title{font-size:14px;letter-spacing:.06em;color:var(--copper);font-family:var(--font-sans);font-weight:500;margin:0 0 16px;line-height:1.6;}
.footer-links{list-style:none;margin:0;padding:0;display:grid;gap:10px;}
.footer-links a{color:#D8CFC1;font-size:14.5px;display:inline-block;transition:color 220ms var(--ease),transform 220ms var(--ease);}
.footer-links a:hover{color:var(--copper);transform:translateX(-2px);}
.footer-text{color:#B8AE9F;font-size:14px;line-height:1.85;margin:0 0 10px;}
.footer-text strong{color:#EDE5D7;font-weight:500;}
.footer-bottom{
  margin-top:40px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 28px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:#9C9384;
}

/* 淡入动画 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 400ms var(--ease),transform 400ms var(--ease);}
.reveal.is-visible{opacity:1;transform:none;}

/* 响应式 */
@media screen and (max-width:1023px){
  .section{padding:72px 0;}
  .page-hero{padding:32px 0 64px;}
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{min-height:60px;}
  .site-header{--nav-h:60px;}
  .mobile-drawer{top:calc(60px + 36px);}
  .entry-num{flex:0 0 52px;font-size:28px;}
  .section-head{margin-bottom:36px;}
}
@media screen and (max-width:639px){
  body{font-size:16px;}
  .container{padding:0 16px;}
  .container .row{margin-left:-8px;margin-right:-8px;}
  .container .column{padding-left:8px;padding-right:8px;}
  .section{padding:52px 0;}
  .utility-inner{font-size:12px;gap:4px;padding:6px 0;}
  .utility-inner .utility-note{display:none;}
  .brand-line1{font-size:15px;}
  .brand-line2{font-size:11.5px;}
  .hero-actions .btn{width:100%;}
  .entry-item{flex-direction:row;gap:16px;padding:22px 2px;}
  .entry-num{flex:0 0 40px;font-size:24px;}
  .entry-body h3{font-size:18px;}
  .notice-box{padding:24px 20px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .breadcrumb .current{max-width:190px;}
  .status-card{padding:20px;margin-top:28px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: article */
:root{
  --red:#A8352B;
  --red-dark:#8A2A22;
  --red-soft:#C9766D;
  --olive:#33452F;
  --gold:#C4923F;
  --paper:#F7F3EA;
  --paper-2:#EFE7D9;
  --card:#FFFFFF;
  --ink:#211E1A;
  --ink-text:#F3EDE2;
  --text:#1C1A17;
  --text-2:#4A443C;
  --text-3:#857C70;
  --line:#DCD3C3;
  --radius:8px;
  --radius-pill:999px;
  --shadow:0 1px 2px rgba(28,26,23,.06),0 8px 24px rgba(28,26,23,.06);
  --shadow-hover:0 12px 32px rgba(28,26,23,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--red);text-decoration:none;transition:color 220ms var(--ease),opacity 220ms var(--ease);}
a:hover{color:var(--red-dark);}
ul,ol{margin:0;padding:0;}
p{margin:0;}
h1,h2,h3,h4{margin:0;font-family:var(--serif);font-weight:600;letter-spacing:.01em;color:var(--text);}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,textarea,select{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--gold);outline-offset:2px;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.row{max-width:1200px;margin-left:auto;margin-right:auto;}
.row .column,.row .columns{padding-left:12px;padding-right:12px;}
.container > .row{margin-left:-12px;margin-right:-12px;}

/* Foundation 默认外观覆盖 */
.button,.button.primary,.button.secondary{
  background:var(--red);color:#F7F3EA;border-radius:var(--radius);
  font-family:var(--sans);font-weight:500;box-shadow:none;border:0;
}
.button:hover,.button:focus{background:var(--red-dark);color:#F7F3EA;}
.top-bar,.title-bar{background:transparent;color:var(--text);}
.callout{border-radius:var(--radius);border:1px solid var(--line);background:var(--paper-2);color:var(--text-2);}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--radius);
  font-family:var(--sans);font-size:15.5px;font-weight:500;letter-spacing:.02em;
  border:1.5px solid transparent;cursor:pointer;
  transition:background 220ms var(--ease),color 220ms var(--ease),transform 220ms var(--ease),box-shadow 220ms var(--ease),border-color 220ms var(--ease);
}
.btn-primary{background:var(--red);color:#F7F3EA;border-color:var(--red);}
.btn-primary:hover,.btn-primary:focus{background:var(--red-dark);border-color:var(--red-dark);color:#F7F3EA;transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--text);}
.btn-ghost:hover,.btn-ghost:focus{background:var(--text);color:var(--paper);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--red);font-weight:500;font-size:15px;}
.link-arrow svg{transition:transform 220ms var(--ease);}
.link-arrow:hover svg{transform:translateX(4px);}
.link-arrow:hover{text-decoration:underline;text-underline-offset:4px;}

/* 顶部提示条 */
.utility-strip{background:var(--ink);color:rgba(243,237,226,.78);font-size:13px;line-height:36px;}
.utility-strip .container{display:flex;justify-content:space-between;align-items:center;gap:16px;}
.utility-strip strong{color:var(--gold);font-weight:500;}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,243,234,.96);
  border-bottom:1px solid var(--line);
  transition:box-shadow 220ms var(--ease),background 220ms var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(28,26,23,.08);background:rgba(247,243,234,.98);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{display:inline-flex;flex:0 0 auto;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-line1{font-family:var(--serif);font-size:17px;font-weight:600;color:var(--text);letter-spacing:.04em;}
.brand-line2{font-size:10.5px;letter-spacing:.16em;color:var(--text-3);margin-top:2px;}
.main-nav{display:flex;align-items:center;gap:28px;}
.nav-link{
  position:relative;font-size:15px;color:var(--text);padding:6px 0;
  transition:color 220ms var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--red);transition:width 240ms var(--ease);
}
.nav-link:hover{color:var(--red);}
.nav-link:hover::after{width:100%;}
.nav-link.is-active{color:var(--red);font-weight:600;}
.nav-link.is-active::after{width:100%;}
.nav-cta{height:40px;padding:0 22px;font-size:14.5px;border-radius:var(--radius);}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;border-radius:var(--radius);border:1px solid var(--line);background:var(--card);padding:0 10px;}
.nav-toggle span{display:block;height:2px;background:var(--text);transition:transform 240ms var(--ease),opacity 180ms var(--ease);}
body.drawer-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg);}
body.drawer-open .nav-toggle span:nth-child(2){opacity:0;}
body.drawer-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-drawer{
  position:fixed;inset:0;z-index:55;background:var(--paper);
  padding:96px 24px 40px;display:flex;flex-direction:column;gap:8px;
  transform:translateX(102%);transition:transform 320ms var(--ease);
  overflow-y:auto;
}
body.drawer-open .mobile-drawer{transform:translateX(0);}
body.drawer-open{overflow:hidden;}
.drawer-link{
  display:flex;align-items:center;height:56px;font-size:17px;color:var(--text);
  border-bottom:1px solid var(--line);
}
.drawer-link.is-active{color:var(--red);font-weight:600;}
.drawer-cta{margin-top:24px;width:100%;}

/* 面包屑 */
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:nowrap;overflow:hidden;
  font-size:13px;color:var(--text-3);padding:28px 0 0;
}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--red);}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .current{color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:60%;}

/* 文章头 */
.article-head{padding:24px 0 0;max-width:860px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:var(--radius-pill);border:1px solid var(--red-soft);
  background:var(--paper-2);color:var(--red);font-size:12px;letter-spacing:.04em;font-weight:500;
}
.article-head h1{
  font-size:clamp(30px,4.2vw,40px);line-height:1.32;margin:18px 0 0;font-weight:600;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  margin-top:20px;font-size:13.5px;color:var(--text-3);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line);}
.gold-rule{width:40px;height:3px;background:var(--gold);border:0;margin:28px 0 0;border-radius:2px;}

/* 文章布局 */
.article-layout{padding:40px 0 0;}
.toc-col{display:block;}
.toc{position:sticky;top:96px;}
.toc-title{font-size:12.5px;letter-spacing:.08em;color:var(--gold);font-weight:600;margin-bottom:12px;}
.toc-list{list-style:none;border-left:1px solid var(--line);}
.toc-list li{margin:0;}
.toc-list a{
  display:block;padding:6px 0 6px 14px;margin-left:-1px;border-left:2px solid transparent;
  font-size:13.8px;line-height:1.6;color:var(--text-2);
  transition:color 200ms var(--ease),border-color 200ms var(--ease),background 200ms var(--ease);
}
.toc-list a:hover{color:var(--red);border-left-color:var(--red-soft);}
.toc-list a.is-current{color:var(--red);border-left-color:var(--red);font-weight:500;}
.toc-list .lvl-3 a{padding-left:26px;font-size:13px;color:var(--text-3);}
.toc-mobile{display:none;margin-bottom:24px;border:1px solid var(--line);border-radius:var(--radius);background:var(--card);padding:0 18px;}
.toc-mobile summary{
  list-style:none;cursor:pointer;height:52px;display:flex;align-items:center;justify-content:space-between;
  font-size:15px;font-weight:500;color:var(--text);
}
.toc-mobile summary::-webkit-details-marker{display:none;}
.toc-mobile summary::after{content:"+";color:var(--red);font-size:19px;line-height:1;}
.toc-mobile[open] summary::after{content:"−";}
.toc-mobile ul{list-style:none;padding-bottom:16px;}
.toc-mobile a{display:block;padding:8px 0;font-size:14px;color:var(--text-2);border-top:1px solid var(--line);}

.article-cover{margin:0 0 32px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:var(--paper-2);}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;}

/* 正文排版 */
.article-body{font-size:17px;line-height:1.95;color:var(--text);max-width:760px;}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.2em;color:var(--text-2);}
.article-body h2{
  font-size:clamp(22px,2.4vw,28px);line-height:1.45;margin:2em 0 .8em;
  padding-left:14px;border-left:3px solid var(--red);
}
.article-body h3{font-size:20px;line-height:1.5;margin:1.7em 0 .6em;font-weight:600;}
.article-body strong{color:var(--text);font-weight:600;}
.article-body a{color:var(--red);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--red-dark);}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:1.5em;}
.article-body li{margin-bottom:.55em;color:var(--text-2);}
.article-body ul li::marker{color:var(--red);}
.article-body ol li::marker{color:var(--red);font-weight:600;}
.article-body blockquote{
  margin:1.6em 0;padding:22px 26px;background:var(--paper-2);
  border-left:4px solid var(--gold);border-radius:0 var(--radius) var(--radius) 0;
  font-size:18px;color:var(--text);line-height:1.85;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--radius);margin:1.6em auto;border:1px solid var(--line);}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px;}
.article-body table{
  width:100%;border-collapse:collapse;font-size:15px;margin:1.6em 0;
  display:block;overflow-x:auto;white-space:nowrap;
}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-body th{background:var(--paper-2);font-weight:600;color:var(--text);}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0;}

/* 标签 */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:40px;padding-top:28px;border-top:1px solid var(--line);}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--radius-pill);
  background:var(--paper-2);border:1px solid var(--line);font-size:13px;color:var(--text-2);
  transition:border-color 200ms var(--ease),color 200ms var(--ease),background 200ms var(--ease);
}
.tag:hover{color:var(--red);border-color:var(--red-soft);background:#fff;}

/* 文末 CTA */
.article-cta{
  margin-top:48px;padding:36px;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--card);box-shadow:var(--shadow);
}
.article-cta h2{font-size:clamp(20px,2.2vw,24px);margin-bottom:12px;}
.article-cta p{color:var(--text-2);font-size:15.5px;line-height:1.85;margin-bottom:22px;max-width:560px;}

/* 相关推荐 */
.related{padding:72px 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(23px,2.8vw,30px);line-height:1.35;}
.section-head p{color:var(--text-3);font-size:14.5px;margin-top:10px;max-width:620px;line-height:1.8;}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.rel-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);height:100%;
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),border-color 220ms var(--ease);
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--red-soft);color:inherit;}
.rel-thumb{background:var(--paper-2);aspect-ratio:16/10;overflow:hidden;}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 400ms var(--ease);}
.rel-card:hover .rel-thumb img{transform:scale(1.03);}
.rel-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rel-body h3{font-size:18px;line-height:1.5;}
.rel-body p{font-size:14px;color:var(--text-3);line-height:1.75;}
.rel-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--text-3);padding-top:6px;}
.rel-foot .arw{color:var(--red);font-weight:600;}

/* 空态 */
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius);
  padding:48px 24px;text-align:center;background:var(--card);
}
.empty-state .es-icon{
  width:44px;height:44px;margin:0 auto 16px;border-radius:50%;
  border:1.5px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--text-3);
}
.empty-state h2{font-size:20px;margin-bottom:10px;}
.empty-state p{color:var(--text-3);font-size:14.5px;margin-bottom:20px;}

/* 页脚 */
.site-footer{background:var(--ink);color:var(--ink-text);padding:72px 0 0;margin-top:96px;}
.footer-grid{padding-bottom:8px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand .brand-line1{color:var(--ink-text);font-size:18px;}
.footer-brand .brand-line2{color:rgba(243,237,226,.6);}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(243,237,226,.62);max-width:330px;}
.footer-title{font-size:14px;font-weight:600;letter-spacing:.06em;color:var(--gold);margin-bottom:16px;font-family:var(--sans);}
.footer-links{list-style:none;}
.footer-links li{margin-bottom:10px;}
.footer-links a{display:inline-block;color:rgba(243,237,226,.72);font-size:14px;transition:color 200ms var(--ease),transform 200ms var(--ease);}
.footer-links a:hover{color:var(--gold);transform:translateX(2px);}
.footer-text{font-size:13.5px;line-height:1.85;color:rgba(243,237,226,.6);margin-bottom:8px;}
.footer-text strong{color:rgba(243,237,226,.88);font-weight:500;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);margin-top:24px;padding:24px 0 32px;
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(243,237,226,.5);
}

/* 进入动效 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 400ms var(--ease),transform 400ms var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* 响应式 */
@media (max-width:1023px){
  .main-nav{display:none;}
  .nav-toggle{display:flex;}
  .toc-col{display:none;}
  .toc-mobile{display:block;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .site-footer{padding-top:56px;margin-top:72px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 16px;}
  .header-inner{height:60px;}
  .brand-line1{font-size:16px;}
  .brand-line2{font-size:10px;letter-spacing:.12em;}
  .mobile-drawer{padding-top:84px;}
  .breadcrumb{padding-top:20px;}
  .article-head h1{font-size:clamp(26px,6.4vw,32px);}
  .article-body{font-size:16.5px;}
  .article-body blockquote{padding:18px 20px;font-size:17px;}
  .article-cta{padding:26px 22px;}
  .related{padding-top:52px;}
  .related-grid{grid-template-columns:1fr;}
  .site-footer{padding-top:48px;margin-top:56px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (max-width:519px){
  .article-meta{font-size:12.5px;gap:8px 12px;}
  .breadcrumb .current{max-width:52%;}
  .btn{width:100%;}
  .article-cta .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category2 */
:root{
  --brick:#A8352B;
  --brick-dark:#8A2A22;
  --brick-light:#C9766D;
  --olive:#33452F;
  --gold:#C4923F;
  --paper:#F7F3EA;
  --paper-2:#EFE7D9;
  --card:#FFFFFF;
  --band:#211E1A;
  --band-text:#F3EDE2;
  --ink:#1C1A17;
  --ink-2:#4A443C;
  --ink-3:#857C70;
  --line:#DCD3C3;
  --radius:8px;
  --shadow-sm:0 1px 2px rgba(28,26,23,.06),0 8px 24px rgba(28,26,23,.06);
  --shadow-hover:0 12px 32px rgba(28,26,23,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}

html{-webkit-text-size-adjust:100%;}

body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.9;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}

img{max-width:100%;height:auto;display:block;border:0;}
a{color:var(--brick);text-decoration:none;transition:color 220ms var(--ease);}
a:hover{color:var(--brick-dark);}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--gold);
  outline-offset:2px;
}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}

h1,h2,h3,h4{
  font-family:var(--font-serif);
  font-weight:600;
  letter-spacing:.01em;
  color:var(--ink);
  margin:0;
  line-height:1.35;
}
h1{font-size:clamp(30px,4.4vw,50px);line-height:1.25;}
h2{font-size:clamp(23px,2.8vw,34px);line-height:1.35;}
h3{font-size:21px;line-height:1.5;}

.row{max-width:1200px;margin-left:auto;margin-right:auto;padding-left:9px;padding-right:9px;}
.columns,.column{padding-left:15px;padding-right:15px;}

.site-header{
  position:sticky;
  top:0;
  z-index:120;
  background:var(--paper);
  transition:box-shadow 220ms var(--ease),background-color 220ms var(--ease);
}
.site-header.is-scrolled{
  box-shadow:0 6px 20px rgba(28,26,23,.08);
  background:rgba(247,243,234,.96);
}
.utility-strip{
  background:var(--band);
  color:var(--band-text);
  font-size:13px;
  letter-spacing:.02em;
}
.utility-inner{
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
  height:36px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.utility-inner i{color:var(--gold);margin-right:6px;font-size:11px;}
.utility-inner span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}

.header-bar{
  border-bottom:1px solid var(--line);
  background:var(--paper);
}
.header-inner{
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
  height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}

.logo{display:flex;align-items:center;gap:11px;text-decoration:none;}
.logo-mark{
  width:36px;height:36px;flex:0 0 36px;display:block;
}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-line1{font-family:var(--font-serif);font-size:17px;font-weight:600;color:var(--ink);letter-spacing:.04em;}
.logo-line2{font-family:var(--font-sans);font-size:12px;color:var(--ink-3);letter-spacing:.06em;}

.main-nav{display:flex;align-items:center;gap:26px;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:15.5px;
  color:var(--ink);
  font-weight:400;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  height:2px;width:0;
  background:var(--brick);
  transition:width 220ms var(--ease);
}
.nav-link:hover{color:var(--brick);}
.nav-link:hover::after{width:100%;}
.nav-link.is-active{color:var(--brick);font-weight:600;}
.nav-link.is-active::after{width:100%;}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:var(--radius);
  border:0;
  font-family:var(--font-sans);
  font-size:16px;
  font-weight:500;
  line-height:1;
  cursor:pointer;
  text-decoration:none;
  transition:background-color 220ms var(--ease),color 220ms var(--ease),transform 220ms var(--ease),box-shadow 220ms var(--ease),border-color 220ms var(--ease);
}
.btn-primary{background:var(--brick);color:var(--paper);}
.btn-primary:hover{background:var(--brick-dark);color:var(--paper);transform:translateY(-2px);box-shadow:var(--shadow-sm);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;border:1.5px solid var(--ink);color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:var(--paper);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn i{font-size:13px;transition:transform 220ms var(--ease);}
.btn:hover i{transform:translateX(4px);}
.nav-cta{height:40px;padding:0 20px;font-size:15px;margin-left:2px;}
.nav-cta:hover{transform:translateY(-1px);}

.nav-toggle{
  display:none;
  width:44px;height:44px;
  background:transparent;
  border:1px solid var(--line);
  border-radius:var(--radius);
  cursor:pointer;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
  padding:0;
}
.nav-toggle span{
  display:block;
  width:20px;height:2px;
  background:var(--ink);
  transition:transform 220ms var(--ease),opacity 220ms var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.mobile-drawer{
  position:fixed;
  inset:0;
  z-index:200;
  background:var(--paper);
  transform:translateX(102%);
  transition:transform 280ms var(--ease);
  display:flex;
  flex-direction:column;
  padding:20px 24px 28px;
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;}
.drawer-close{
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:transparent;
  color:var(--ink);
  font-size:18px;
  cursor:pointer;
}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  display:block;
  line-height:56px;
  font-size:17px;
  color:var(--ink);
  border-bottom:1px solid var(--line);
  text-align:left;
}
.drawer-nav a.is-active{color:var(--brick);font-weight:600;}
.drawer-foot{margin-top:auto;padding-top:28px;}
.drawer-foot .btn{width:100%;}

.breadcrumb-bar{background:var(--paper);padding:18px 0 0;}
.crumbs{
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
  font-size:13px;
  color:var(--ink-3);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
}
.crumbs a{color:var(--ink-3);}
.crumbs a:hover{color:var(--brick);}
.crumbs .sep{color:var(--line);}
.crumbs .current{color:var(--ink);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

.section{padding:96px 0;}
.section--tight{padding:72px 0 96px;}
.bg-paper{background:var(--paper);}
.bg-paper-2{background:var(--paper-2);}

.hero{background:var(--paper);padding:56px 0 96px;}
.hero-grid{display:flex;align-items:center;gap:48px;flex-wrap:wrap;}
.hero-copy{flex:1 1 560px;min-width:0;}
.hero-media{flex:1 1 360px;min-width:0;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  letter-spacing:.06em;
  color:var(--ink-3);
  margin-bottom:20px;
}
.eyebrow::before{
  content:"";
  display:block;
  width:3px;height:18px;
  background:var(--gold);
  border-radius:2px;
}
.hero h1{margin-bottom:22px;}
.hero-sub{
  font-size:18px;
  color:var(--ink-2);
  line-height:1.9;
  margin-bottom:18px;
  max-width:640px;
}
.hero-lead{
  font-size:16px;
  color:var(--ink-2);
  line-height:1.9;
  max-width:660px;
  margin-bottom:28px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px;}
.badge{
  display:inline-block;
  padding:4px 13px;
  font-size:12px;
  letter-spacing:.04em;
  border-radius:999px;
  background:var(--paper-2);
  color:var(--brick);
  border:1px solid var(--brick-light);
  line-height:1.7;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-figure{
  position:relative;
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-sm);
}
.hero-figure img{
  width:100%;
  aspect-ratio:4/5;
  object-fit:cover;
}
.hero-figure-card{
  position:absolute;
  left:16px;
  right:16px;
  bottom:16px;
  background:rgba(255,255,255,.95);
  border-radius:var(--radius);
  border-left:3px solid var(--gold);
  padding:14px 16px;
  font-size:13.5px;
  line-height:1.7;
  color:var(--ink-2);
}
.hero-figure-card strong{display:block;color:var(--ink);font-size:14px;margin-bottom:2px;font-weight:600;}

.section-head{max-width:760px;margin-bottom:56px;}
.section-head h2{margin-bottom:16px;}
.section-head p{color:var(--ink-2);font-size:16.5px;line-height:1.9;}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}

.timeline{position:relative;padding:8px 0 0;}
.timeline::before{
  content:"";
  position:absolute;
  left:50%;
  top:0;bottom:0;
  width:2px;
  background:var(--line);
  transform:translateX(-1px);
}
.tl-item{
  position:relative;
  width:50%;
  padding:0 52px 48px 0;
  text-align:right;
}
.tl-item:nth-child(even){
  margin-left:50%;
  padding:0 0 48px 52px;
  text-align:left;
}
.tl-item::before{
  content:"";
  position:absolute;
  top:10px;
  right:-6px;
  width:12px;height:12px;
  border-radius:50%;
  background:var(--brick);
  box-shadow:0 0 0 4px var(--paper-2);
  z-index:2;
}
.tl-item:nth-child(even)::before{right:auto;left:-6px;}
.tl-num{
  display:block;
  font-family:var(--font-serif);
  font-size:13px;
  letter-spacing:.06em;
  color:var(--brick);
  margin-bottom:8px;
}
.tl-item h3{margin-bottom:10px;}
.tl-item p{color:var(--ink-2);font-size:15.5px;line-height:1.9;margin:0;}

.band-figure{
  position:relative;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.band-figure img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:var(--radius);
  border:1px solid var(--line);
}
.band-card{
  position:relative;
  max-width:660px;
  margin:-48px auto 0;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  padding:28px 30px;
}
.band-card h3{font-size:19px;margin-bottom:16px;}
.band-card li{
  display:flex;
  gap:12px;
  padding:10px 0;
  border-top:1px solid var(--line);
  font-size:15px;
  color:var(--ink-2);
  line-height:1.8;
}
.band-card li:first-child{border-top:0;padding-top:0;}
.band-card li strong{
  flex:0 0 62px;
  color:var(--brick);
  font-weight:600;
  font-size:14px;
  letter-spacing:.04em;
}

.notice{
  margin-top:64px;
  border:1px solid var(--olive);
  background:rgba(51,69,47,.05);
  border-radius:var(--radius);
  padding:32px 34px;
}
.notice h3{
  font-size:20px;
  margin-bottom:18px;
  color:var(--olive);
}
.notice li{
  position:relative;
  padding-left:22px;
  margin-bottom:12px;
  color:var(--ink-2);
  font-size:15.5px;
  line-height:1.85;
}
.notice li:last-child{margin-bottom:0;}
.notice li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:10px;height:2px;
  background:var(--gold);
  border-radius:1px;
}

.compare{display:flex;gap:32px;flex-wrap:wrap;}
.compare-col{
  flex:1 1 340px;
  min-width:0;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:30px 32px;
  transition:box-shadow 220ms var(--ease),transform 220ms var(--ease);
}
.compare-col:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px);}
.compare-col h3{
  font-size:19px;
  margin-bottom:6px;
  display:flex;
  align-items:center;
  gap:10px;
}
.compare-col h3 i{color:var(--brick);font-size:16px;}
.compare-col .compare-sub{
  font-size:13.5px;
  color:var(--ink-3);
  margin-bottom:18px;
  letter-spacing:.02em;
}
.compare-col li{
  position:relative;
  padding:12px 0 12px 20px;
  border-top:1px solid var(--line);
  font-size:15px;
  color:var(--ink-2);
  line-height:1.85;
}
.compare-col li::before{
  content:"";
  position:absolute;
  left:0;top:21px;
  width:6px;height:6px;
  background:var(--brick);
  border-radius:1px;
}

.faq-wrap{max-width:820px;margin:0 auto;}
.accordion{background:transparent;border:0;border-bottom:1px solid var(--line);margin:0;padding:0;list-style:none;}
.accordion-item{background:transparent;border:0;}
.accordion-title{
  display:block;
  position:relative;
  border:0;
  border-top:1px solid var(--line);
  background:transparent;
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:18px;
  font-weight:500;
  line-height:1.6;
  padding:22px 56px 22px 0;
  transition:color 220ms var(--ease);
}
.accordion-title:hover{color:var(--brick);background:transparent;}
.accordion-title::before{
  content:"+";
  position:absolute;
  right:0;
  top:50%;
  width:26px;
  height:26px;
  margin:0;
  line-height:23px;
  text-align:center;
  font-size:17px;
  color:var(--brick);
  border:1px solid var(--brick-light);
  border-radius:50%;
  background:transparent;
  transform:translateY(-50%);
  transition:transform 200ms var(--ease);
}
.accordion-title[aria-expanded="true"]::before{transform:translateY(-50%) rotate(45deg);}
.accordion-content{
  border:0;
  background:transparent;
  padding:0 56px 24px 0;
  color:var(--ink-2);
  font-size:16px;
  line-height:1.9;
}
.accordion-content p{margin:0;}

.cta-band{
  background:var(--brick);
  color:var(--paper);
  padding:72px 0;
  text-align:center;
}
.cta-band h2{color:var(--paper);margin-bottom:16px;}
.cta-band p{
  color:rgba(247,243,234,.86);
  font-size:16.5px;
  max-width:620px;
  margin:0 auto 32px;
  line-height:1.9;
}
.cta-band .btn-cta{
  background:var(--paper);
  color:var(--brick);
  height:52px;
  padding:0 34px;
}
.cta-band .btn-cta:hover{
  background:#fff;
  color:var(--brick-dark);
  transform:translateY(-2px);
  box-shadow:0 12px 28px rgba(0,0,0,.18);
}
.cta-band .btn-cta:active{transform:translateY(0);}
.cta-band .btn-cta:focus-visible{outline:2px solid #fff;outline-offset:3px;}

.site-footer{background:var(--band);color:var(--band-text);padding:72px 0 0;}
.site-footer .row{padding-left:9px;padding-right:9px;}
.footer-grid{padding-top:0;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.brand-mark{display:block;line-height:0;}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-line1{font-family:var(--font-serif);font-size:17px;color:var(--band-text);letter-spacing:.04em;}
.brand-line2{font-family:var(--font-sans);font-size:12px;color:rgba(243,237,226,.62);letter-spacing:.06em;}
.footer-desc{color:rgba(243,237,226,.72);font-size:14px;line-height:1.85;margin:0;max-width:340px;}
.footer-title{
  font-family:var(--font-sans);
  font-size:14px;
  font-weight:500;
  letter-spacing:.06em;
  color:var(--gold);
  margin:0 0 18px;
  line-height:1.5;
}
.footer-links{list-style:none;margin:0;padding:0;}
.footer-links li{margin-bottom:10px;}
.footer-links a{
  display:inline-block;
  color:rgba(243,237,226,.78);
  font-size:14.5px;
  line-height:1.7;
  transition:color 220ms var(--ease),transform 220ms var(--ease);
}
.footer-links a:hover{color:var(--gold);transform:translateX(2px);}
.footer-text{color:rgba(243,237,226,.72);font-size:14px;line-height:1.85;margin:0 0 10px;}
.footer-text strong{color:var(--band-text);font-weight:500;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(243,237,226,.6);
}

.reveal{opacity:0;transform:translateY(12px);transition:opacity 400ms var(--ease),transform 400ms var(--ease);}
.reveal.in-view{opacity:1;transform:none;}

@media screen and (max-width:1023px){
  .main-nav{display:none;}
  .nav-toggle{display:flex;}
  .section{padding:72px 0;}
  .hero{padding:44px 0 72px;}
  .hero-grid{gap:36px;}
  .timeline::before{left:7px;transform:none;}
  .tl-item,
  .tl-item:nth-child(even){
    width:100%;
    margin-left:0;
    padding:0 0 40px 40px;
    text-align:left;
  }
  .tl-item::before,
  .tl-item:nth-child(even)::before{
    left:1px;
    right:auto;
    top:9px;
  }
  .band-card{margin-top:-32px;padding:24px;}
  .notice{padding:26px;margin-top:48px;}
  .section-head{margin-bottom:40px;}
}

@media screen and (max-width:639px){
  body{font-size:16px;}
  .utility-inner{padding:0 16px;height:32px;font-size:12px;}
  .utility-inner .utility-right{display:none;}
  .header-inner{height:60px;padding:0 16px;}
  .logo-mark{width:32px;height:32px;flex:0 0 32px;}
  .logo-line1{font-size:15.5px;}
  .logo-line2{font-size:11px;}
  .row{padding-left:1px;padding-right:1px;}
  .columns,.column{padding-left:15px;padding-right:15px;}
  .crumbs{padding:0 16px;font-size:12.5px;}
  .section{padding:52px 0;}
  .hero{padding:32px 0 52px;}
  .hero-sub{font-size:16.5px;}
  .hero-actions .btn{width:100%;}
  .band-figure{padding:0 16px;}
  .band-card{margin:-24px 12px 0;padding:22px 20px;}
  .band-card li{flex-direction:column;gap:2px;}
  .band-card li strong{flex:none;}
  .compare-col{padding:24px 22px;}
  .accordion-title{font-size:16.5px;padding:18px 44px 18px 0;}
  .accordion-content{padding:0 44px 20px 0;font-size:15.5px;}
  .cta-band{padding:52px 0;}
  .cta-band .btn-cta{width:100%;}
  .site-footer{padding:52px 0 0;}
  .footer-bottom{flex-direction:column;align-items:flex-start;font-size:12.5px;}
  .cta-band h2{font-size:24px;}
  .notice ul li{font-size:15px;}
}

@media (prefers-reduced-motion:reduce){
  *,
  *::before,
  *::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category3 */
:root{
  --brick:#A8352B;
  --brick-dark:#8A2A22;
  --brick-soft:#C9766D;
  --olive:#33452F;
  --gold:#C4923F;
  --paper:#F7F3EA;
  --paper-2:#EFE7D9;
  --card:#FFFFFF;
  --ink:#1C1A17;
  --ink-band:#211E1A;
  --text:#4A443C;
  --muted:#857C70;
  --line:#DCD3C3;
  --band-text:#F3EDE2;
  --radius:8px;
  --shadow-sm:0 1px 2px rgba(28,26,23,.06),0 8px 24px rgba(28,26,23,.06);
  --shadow-md:0 12px 32px rgba(28,26,23,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.9;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{
  font-family:var(--font-serif);
  font-weight:600;
  letter-spacing:.01em;
  color:var(--ink);
  margin:0;
}
h1{font-size:clamp(30px,4.4vw,48px);line-height:1.25;}
h2{font-size:clamp(23px,2.8vw,34px);line-height:1.35;}
h3{font-size:20px;line-height:1.5;}
p{margin:0 0 1.1em;line-height:1.9;}
p:last-child{margin-bottom:0;}
a{color:inherit;text-decoration:none;}
a:hover{text-decoration:none;}
img{display:block;max-width:100%;height:auto;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font:inherit;}
:focus-visible{outline:2px solid var(--gold);outline-offset:2px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.container .row{max-width:100%;margin-left:-12px;margin-right:-12px;}
.container .column{padding-left:12px;padding-right:12px;}

/* ---------- 顶部状态条 ---------- */
.utility-strip{background:var(--ink-band);color:var(--band-text);font-size:13px;line-height:36px;}
.utility-strip .container{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.utility-strip .strip-left{letter-spacing:.02em;}
.utility-strip .strip-right{color:#B9AE9C;white-space:nowrap;}
.utility-strip .dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--gold);margin-right:8px;vertical-align:middle;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,243,234,.95);
  border-bottom:1px solid var(--line);
  transition:box-shadow 220ms var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(28,26,23,.08);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px;}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-line1{font-family:var(--font-serif);font-size:18px;font-weight:600;color:var(--ink);letter-spacing:.02em;}
.brand-line2{font-size:12px;color:var(--muted);letter-spacing:.06em;}
.main-nav{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 14px;
  font-size:15px;color:var(--ink);border-radius:6px;
  transition:color 220ms var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;
  background:var(--brick);transform:scaleX(0);transform-origin:left;
  transition:transform 220ms var(--ease);
}
.nav-link:hover{color:var(--brick);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brick);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-link:focus-visible{outline:2px solid var(--gold);outline-offset:2px;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--radius);
  border:1.5px solid transparent;
  font-family:var(--font-sans);font-size:16px;font-weight:500;line-height:1;
  cursor:pointer;
  transition:background-color 220ms var(--ease),color 220ms var(--ease),
             transform 220ms var(--ease),box-shadow 220ms var(--ease),
             border-color 220ms var(--ease);
}
.btn-primary{background:var(--brick);color:#F7F3EA;border-color:var(--brick);}
.btn-primary:hover{background:var(--brick-dark);border-color:var(--brick-dark);color:#F7F3EA;transform:translateY(-2px);box-shadow:var(--shadow-md);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:#F7F3EA;transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-light{background:#F7F3EA;color:var(--brick-dark);border-color:#F7F3EA;}
.btn-light:hover{background:#FFFDF7;color:var(--brick-dark);transform:translateY(-2px);box-shadow:0 12px 32px rgba(0,0,0,.18);}
.btn-light:active{transform:translateY(0);}
.nav-cta{margin-left:12px;height:42px;padding:0 20px;font-size:15px;}

.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius);
  background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;
  transition:border-color 220ms var(--ease);
}
.nav-toggle:hover{border-color:var(--brick);}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--ink);transition:transform 220ms var(--ease),opacity 200ms var(--ease);}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.mobile-drawer{
  position:fixed;inset:0;z-index:90;background:var(--paper);
  transform:translateX(100%);transition:transform 280ms var(--ease);
  display:flex;flex-direction:column;padding:20px 24px 28px;overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:52px;border-bottom:1px solid var(--line);margin-bottom:8px;}
.drawer-close{width:40px;height:40px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;color:var(--ink);font-size:18px;line-height:1;cursor:pointer;}
.drawer-close:hover{border-color:var(--brick);color:var(--brick);}
.drawer-link{
  display:flex;align-items:center;height:56px;font-size:17px;color:var(--ink);
  border-bottom:1px solid var(--line);transition:color 200ms var(--ease);
}
.drawer-link:hover{color:var(--brick);}
.drawer-link.is-active{color:var(--brick);font-weight:600;}
.drawer-cta{margin-top:24px;width:100%;}

/* ---------- 面包屑 ---------- */
.breadcrumb{font-size:13px;color:var(--muted);padding:22px 0 0;line-height:1.7;}
.breadcrumb a{color:var(--muted);transition:color 200ms var(--ease);}
.breadcrumb a:hover{color:var(--brick);}
.breadcrumb .sep{margin:0 8px;color:#B9AE9C;}
.breadcrumb .current{color:var(--ink);}

/* ---------- Hero ---------- */
.page-hero{padding:20px 0 76px;border-bottom:1px solid var(--line);}
.badge{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  font-size:12px;letter-spacing:.04em;
  background:var(--paper-2);color:var(--brick);border:1px solid var(--brick-soft);
}
.page-hero h1{margin:18px 0 18px;max-width:15em;}
.hero-lead{font-size:17px;line-height:1.95;color:var(--text);max-width:640px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.quick-card{
  margin-top:36px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);padding:24px 26px;
}
.quick-title{
  font-family:var(--font-serif);font-size:15px;font-weight:600;color:var(--ink);
  margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--line);
}
.quick-list li{
  position:relative;padding-left:18px;font-size:15px;color:var(--text);line-height:1.85;margin-bottom:10px;
}
.quick-list li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:1px;background:var(--brick);
}
.quick-list li:last-child{margin-bottom:16px;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;color:var(--brick);}
.text-link .arrow{transition:transform 220ms var(--ease);}
.text-link:hover .arrow{transform:translateX(4px);}
.text-link:hover{text-decoration:underline;text-underline-offset:4px;}

/* ---------- 通用 section ---------- */
.section{padding:96px 0;}
.section-head{max-width:720px;margin-bottom:48px;}
.section-head h2{margin-bottom:14px;}
.section-sub{font-size:16px;color:var(--muted);line-height:1.9;margin:0;}

/* ---------- 卡片矩阵 ---------- */
.qcards{background:var(--paper);}
.qcard-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.qcard-grid .column{width:auto;float:none;padding:0;margin:0;}
.qcard{
  display:flex;flex-direction:column;height:100%;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);overflow:hidden;
  transition:transform 220ms var(--ease),box-shadow 220ms var(--ease),border-color 220ms var(--ease);
}
.qcard:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--brick-soft);}
.qcard:focus-visible{outline:2px solid var(--gold);outline-offset:3px;}
.qcard-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--paper-2);}
.qcard-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease);}
.qcard:hover .qcard-thumb img{transform:scale(1.03);}
.qcard-body{display:flex;flex-direction:column;gap:10px;padding:20px 22px 22px;flex:1;}
.qcard-body .badge{align-self:flex-start;}
.qcard h3{font-size:20px;line-height:1.5;color:var(--ink);}
.qcard p{font-size:15px;line-height:1.8;color:var(--muted);margin:0;}
.qcard-link{
  margin-top:auto;padding-top:12px;display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:500;color:var(--brick);
}
.qcard-link .arrow{transition:transform 220ms var(--ease);}
.qcard:hover .qcard-link .arrow{transform:translateX(4px);}

/* ---------- 深墨数据带 ---------- */
.metrics{background:var(--ink-band);color:var(--band-text);padding:80px 0;}
.metrics h2{color:#F3EDE2;margin-bottom:14px;}
.metrics-sub{color:#B9AE9C;font-size:16px;max-width:640px;margin:0 0 48px;}
.metric{padding-left:18px;border-left:3px solid var(--gold);}
.metric-num{
  font-family:var(--font-serif);font-size:clamp(34px,4vw,50px);line-height:1.1;
  color:#F3EDE2;font-weight:600;
}
.metric-num small{font-size:16px;font-family:var(--font-sans);font-weight:400;color:#B9AE9C;margin-left:6px;}
.metric-label{font-size:14px;line-height:1.8;color:#B9AE9C;margin-top:10px;}

/* ---------- FAQ ---------- */
.faq-section{background:var(--paper-2);}
.faq-wrap{max-width:860px;}
.accordion{border:none;background:transparent;margin:0;}
.accordion .accordion-item{border:none;border-bottom:1px solid var(--line);background:transparent;}
.accordion .accordion-title{
  position:relative;
  padding:24px 48px 24px 0;
  border:none;background:transparent;
  font-family:var(--font-serif);font-size:18px;font-weight:500;color:var(--ink);line-height:1.6;
  transition:color 220ms var(--ease);
}
.accordion .accordion-title:hover{color:var(--brick);background:transparent;}
.accordion .accordion-title:focus-visible{outline:2px solid var(--gold);outline-offset:2px;}
.accordion .accordion-title::before{
  content:"+";
  position:absolute;right:0;top:50%;
  width:24px;height:24px;line-height:21px;text-align:center;
  border:1px solid var(--brick);border-radius:50%;
  color:var(--brick);font-size:15px;font-family:var(--font-sans);font-weight:400;
  transform:translateY(-50%);
  transition:transform 200ms var(--ease),background-color 200ms var(--ease),color 200ms var(--ease);
}
.accordion .accordion-title[aria-expanded="true"]{color:var(--brick);}
.accordion .accordion-title[aria-expanded="true"]::before{
  content:"+";
  transform:translateY(-50%) rotate(45deg);
  background:var(--brick);color:#F7F3EA;
}
.accordion .accordion-content{
  padding:0 48px 22px 0;
  border:none;background:transparent;
  color:var(--text);font-size:16px;line-height:1.9;
}
.accordion .accordion-content p{margin:0;}

/* ---------- CTA ---------- */
.cta-band{background:var(--brick);color:#FBF6EC;padding:76px 0;text-align:center;}
.cta-band h2{color:#FBF6EC;margin-bottom:16px;}
.cta-band p{color:rgba(251,246,236,.86);font-size:16px;max-width:640px;margin:0 auto 30px;line-height:1.9;}
.cta-band .btn{min-width:200px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-band);color:#D9D1C4;padding:72px 0 0;font-size:14px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand .brand-line1{color:#F3EDE2;font-family:var(--font-serif);font-size:18px;font-weight:600;letter-spacing:.02em;}
.footer-brand .brand-line2{color:#B9AE9C;font-size:12px;letter-spacing:.06em;}
.brand-mark{display:inline-flex;flex-shrink:0;}
.footer-desc{color:#B9AE9C;font-size:14px;line-height:1.85;max-width:320px;}
.footer-title{
  font-family:var(--font-sans);font-size:14px;font-weight:600;color:var(--gold);
  letter-spacing:.06em;margin:0 0 18px;
}
.footer-links li{margin-bottom:10px;}
.footer-links a{
  display:inline-block;color:#C9C0B2;font-size:14px;
  transition:color 200ms var(--ease),transform 200ms var(--ease);
}
.footer-links a:hover{color:var(--gold);transform:translateX(-2px);}
.footer-text{color:#B9AE9C;font-size:14px;line-height:1.85;margin-bottom:10px;}
.footer-text strong{color:#E9E1D3;font-weight:500;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  margin-top:32px;padding:22px 0 26px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  font-size:13px;color:#9C9285;
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .main-nav{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .nav-inner{height:64px;}
  .section{padding:72px 0;}
  .page-hero{padding:16px 0 60px;}
  .metrics{padding:64px 0;}
  .metrics-sub{margin-bottom:36px;}
  .metrics .column{margin-bottom:32px;}
  .metrics .column:last-child{margin-bottom:0;}
  .qcard-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-band{padding:60px 0;}
  .site-footer{padding-top:56px;}
}
@media (max-width:639px){
  body{font-size:16px;}
  .container{padding:0 16px;}
  .container .row{margin-left:-8px;margin-right:-8px;}
  .container .column{padding-left:8px;padding-right:8px;}
  .section{padding:52px 0;}
  .page-hero{padding:12px 0 48px;}
  .page-hero h1{font-size:clamp(26px,7.2vw,34px);margin:14px 0 16px;}
  .hero-lead{font-size:16px;margin-bottom:22px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .quick-card{padding:20px;margin-top:28px;}
  .qcard-grid{grid-template-columns:1fr;gap:20px;}
  .metrics{padding:52px 0;}
  .metric-num{font-size:34px;}
  .accordion .accordion-title{padding:20px 44px 20px 0;font-size:17px;}
  .accordion .accordion-content{padding:0 44px 20px 0;font-size:15.5px;}
  .cta-band{padding:52px 0;}
  .cta-band .btn{width:100%;min-width:0;}
  .footer-bottom{flex-direction:column;}
  .utility-strip{font-size:12px;}
  .utility-strip .strip-left{display:none;}
  .utility-strip .container{justify-content:flex-end;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}