/* roulang page: index */
:root{
  --paper:#F6F4EF;
  --paper-2:#ECE7DE;
  --card:#FBFAF7;
  --primary:#133B36;
  --primary-ink:#0E2A27;
  --accent:#C4622D;
  --accent-ink:#A94F22;
  --text:#16211F;
  --text-2:#5C6663;
  --line:#E0DAD0;
  --line-2:#CFC7BA;
  --r-s:6px;
  --r-m:10px;
  --r-l:18px;
  --sh:0 1px 2px rgba(20,23,26,.04),0 8px 24px rgba(20,23,26,.06);
  --sh-h:0 1px 2px rgba(20,23,26,.04),0 14px 36px rgba(20,23,26,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --t:.25s cubic-bezier(.22,.61,.36,1);
  --font-sans:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --font-serif:"Noto Serif SC","Songti SC",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(--font-sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color var(--t)}
a:hover,a:focus{color:var(--accent)}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700}
h1,h2{font-family:var(--font-serif);letter-spacing:-.02em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer;border:0;background:none}
input,select,textarea{font-family:inherit;font-size:15px}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* 容器 */
.grid-container{max-width:1200px;padding-left:20px;padding-right:20px;margin:0 auto}
@media screen and (min-width:1024px){
  .grid-container{max-width:1200px;padding-left:32px;padding-right:32px}
}
@media screen and (min-width:1200px){
  .grid-container{max-width:1240px}
}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-m);font-size:15px;font-weight:600;
  line-height:1.2;border:1px solid transparent;transition:all var(--t);white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn-primary:hover,.btn-primary:focus{background:var(--accent-ink);border-color:var(--accent-ink);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line-2)}
.btn-ghost:hover,.btn-ghost:focus{border-color:var(--primary);color:var(--primary);background:var(--paper-2)}
.btn-light{background:#F3EFE7;color:var(--primary);border-color:#F3EFE7}
.btn-light:hover,.btn-light:focus{background:#fff;color:var(--primary-ink);border-color:#fff;transform:translateY(-1px)}
.btn-outline-light{background:transparent;color:#F3EFE7;border-color:rgba(243,239,231,.45)}
.btn-outline-light:hover,.btn-outline-light:focus{color:#fff;border-color:#F3EFE7;background:rgba(243,239,231,.08)}
.btn-sm{padding:8px 16px;font-size:14px}

/* 徽章与标签 */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  background:var(--paper-2);color:var(--text-2);font-size:12px;letter-spacing:.02em;
}
.badge-primary{background:rgba(19,59,54,.10);color:var(--primary)}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;font-size:13px;letter-spacing:.18em;
  color:var(--accent);font-variant-numeric:tabular-nums;text-transform:uppercase;
}
.eyebrow::before{content:"";width:28px;height:1px;background:var(--line-2);display:inline-block}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,244,239,.86);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:flex;align-items:center;gap:10px;color:var(--primary);flex:0 0 auto}
.brand:hover{color:var(--primary)}
.brand-mark{display:inline-flex;color:var(--primary)}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.nav-channels{display:flex;align-items:center;gap:26px;flex:1 1 auto}
.nav-channels a{
  position:relative;padding:6px 0;font-size:15px;color:var(--text-2);transition:color var(--t);
}
.nav-channels a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--accent);
  transform:scaleX(0);transform-origin:left;transition:transform var(--t);
}
.nav-channels a:hover{color:var(--primary)}
.nav-channels a:hover::after{transform:scaleX(1)}
.nav-channels a.is-active{color:var(--primary);font-weight:600}
.nav-channels a.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-search input[type="search"]{
  width:220px;height:40px;padding:0 16px;border-radius:999px;
  border:1px solid var(--line-2);background:var(--card);color:var(--text);
  transition:width var(--t),border-color var(--t),box-shadow var(--t);
}
.nav-search input[type="search"]::placeholder{color:#9AA29F}
.nav-search input[type="search"]:focus{
  width:280px;outline:none;border-color:var(--primary);box-shadow:0 0 0 2px rgba(19,59,54,.12);
}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--line-2);border-radius:var(--r-m);flex-direction:column;align-items:center;justify-content:center;gap:5px}
.nav-toggle span{display:block;width:18px;height:1.5px;background:var(--primary);transition:all var(--t)}
.nav-toggle:hover{border-color:var(--primary)}

/* 移动端抽屉 */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;z-index:90;
  background:var(--card);border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .3s var(--ease);
  padding:24px 20px;overflow-y:auto;display:flex;flex-direction:column;gap:22px;
}
.drawer.is-open{transform:translateX(0)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,42,39,.35);z-index:80;
  opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{width:36px;height:36px;border:1px solid var(--line-2);border-radius:var(--r-s);color:var(--primary);font-size:18px;line-height:1}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{padding:14px 0;border-bottom:1px solid var(--line);font-size:16px;color:var(--text)}
.drawer-nav a.is-active{color:var(--accent);font-weight:600}
.drawer-search input{width:100%;height:42px;padding:0 14px;border:1px solid var(--line-2);border-radius:var(--r-m);background:var(--paper);color:var(--text)}
.drawer-actions{display:flex;flex-direction:column;gap:10px;margin-top:auto}

/* Hero */
.hero{position:relative;padding:72px 0 48px;overflow:hidden}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:repeating-linear-gradient(90deg,var(--line) 0 14px,transparent 14px 26px);
  opacity:.9;
}
.hero-row{align-items:center}
.hero-copy h1{font-size:clamp(34px,5vw,58px);font-weight:700;letter-spacing:-.02em;line-height:1.15;margin:18px 0 0}
.hero-sub{margin-top:18px;font-size:17px;color:var(--text-2);max-width:56ch}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-meta{display:flex;flex-wrap:wrap;gap:28px;margin-top:34px;padding-top:22px;border-top:1px solid var(--line)}
.hero-meta li{font-size:14px;color:var(--text-2)}
.hero-meta strong{display:block;font-size:20px;color:var(--primary);font-variant-numeric:tabular-nums;font-weight:700}
.hero-media{margin-top:8px}
.hero-media img{
  width:100%;aspect-ratio:7/5;object-fit:cover;
  border-radius:180px 180px var(--r-l) var(--r-l);
  border:1px solid var(--line);box-shadow:var(--sh);
}
.anchor-bar{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:44px;
}
.anchor-bar a{
  display:inline-flex;align-items:center;gap:10px;padding:10px 18px;border-radius:999px;
  border:1px solid var(--line);background:var(--card);font-size:14px;color:var(--text-2);
  transition:all var(--t);
}
.anchor-bar a b{font-variant-numeric:tabular-nums;letter-spacing:.18em;color:var(--accent);font-weight:600;font-size:12px}
.anchor-bar a:hover{border-color:var(--primary);color:var(--primary);background:var(--paper-2)}

/* 区块通用 */
.section{padding:96px 0;scroll-margin-top:96px}
.section-tint{background:var(--paper-2)}
.section-head{margin-bottom:44px}
.section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.25;margin-top:14px}
.section-head p{margin-top:14px;color:var(--text-2);max-width:68ch}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.text-link{font-size:14px;color:var(--primary);border-bottom:1px solid transparent;transition:all var(--t)}
.text-link:hover{border-bottom-color:var(--accent);color:var(--accent)}

/* 合集目录 */
.index-list{border-top:1px solid var(--line)}
.index-row{
  display:flex;align-items:center;gap:18px;min-height:64px;padding:14px 12px;
  border-bottom:1px solid var(--line);transition:background var(--t),transform var(--t),color var(--t);
}
.index-row:hover{background:var(--paper-2);transform:translateX(4px)}
.index-num{flex:0 0 44px;font-variant-numeric:tabular-nums;letter-spacing:.18em;font-size:13px;color:var(--accent)}
.index-name{flex:1 1 auto;font-weight:600;color:var(--text);font-size:17px}
.index-row:hover .index-name{color:var(--primary)}
.index-count{font-size:13px;color:var(--text-2);white-space:nowrap}
.index-arrow{color:var(--line-2);transition:transform var(--t),color var(--t)}
.index-row:hover .index-arrow{color:var(--accent);transform:translateX(3px)}
.side-sticky{position:sticky;top:96px}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-m);
  padding:24px;box-shadow:var(--sh);
}
.side-card + .side-card{margin-top:24px}
.side-card h3{font-size:17px;margin-bottom:6px}
.side-card .side-note{font-size:13px;color:var(--text-2);margin-bottom:16px}
.side-links{display:flex;flex-direction:column}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 0;border-bottom:1px solid var(--line);font-size:15px;
}
.side-links a:last-child{border-bottom:0}
.side-links a span{color:var(--text-2);font-size:13px}
.side-kv{display:flex;justify-content:space-between;font-size:14px;padding:9px 0;border-bottom:1px dashed var(--line)}
.side-kv:last-child{border-bottom:0}
.side-kv b{font-weight:600;color:var(--primary);font-variant-numeric:tabular-nums}

/* 精选条目 */
.feature-main{
  display:flex;flex-direction:column;height:100%;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-l);overflow:hidden;
  box-shadow:var(--sh);transition:box-shadow var(--t),transform var(--t);
}
.feature-main:hover{box-shadow:var(--sh-h);transform:translateY(-3px)}
.feature-main .thumb{overflow:hidden;aspect-ratio:16/10}
.feature-main .thumb img{width:100%;height:100%;object-fit:cover;transition:transform 700ms var(--ease)}
.feature-main:hover .thumb img{transform:scale(1.04)}
.feature-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto}
.card-title{font-size:20px;line-height:1.35;font-weight:700}
.card-title a{color:var(--text)}
.card-title a:hover{color:var(--primary)}
.card-desc{color:var(--text-2);font-size:15px}
.card-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-2);flex-wrap:wrap}
.mini-list{display:flex;flex-direction:column;gap:24px;height:100%}
.mini-card{
  display:flex;gap:16px;padding:16px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-m);box-shadow:var(--sh);transition:box-shadow var(--t),transform var(--t);
}
.mini-card:hover{box-shadow:var(--sh-h);transform:translateY(-3px)}
.mini-card .thumb{flex:0 0 132px;overflow:hidden;border-radius:var(--r-s);aspect-ratio:16/10}
.mini-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform 700ms var(--ease)}
.mini-card:hover .thumb img{transform:scale(1.04)}
.mini-body{display:flex;flex-direction:column;gap:8px;min-width:0}
.mini-body h3{font-size:16px;line-height:1.4}
.mini-body h3 a{color:var(--text)}
.mini-body h3 a:hover{color:var(--primary)}
.mini-body p{font-size:14px;color:var(--text-2)}
.more-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);margin-top:auto}
.more-link i{font-style:normal;transition:transform var(--t)}
.more-link:hover i{transform:translateX(3px)}

/* 最新信息 */
.cms-list{row-gap:24px}
.cms-item{
  display:flex;flex-direction:column;gap:12px;height:100%;padding:22px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-m);
  transition:box-shadow var(--t),transform var(--t),border-color var(--t);
}
.cms-item:hover{box-shadow:var(--sh-h);transform:translateY(-3px);border-color:var(--line-2)}
.cms-top{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.cms-time{font-size:13px;color:var(--text-2);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.cms-item h3{font-size:17px;line-height:1.4}
.cms-item h3 a{color:var(--text)}
.cms-item h3 a:hover{color:var(--primary)}
.cms-item p{font-size:14px;color:var(--text-2)}
.cms-empty{
  min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  border:1px solid var(--line);border-radius:var(--r-m);background:var(--card);
  color:var(--text-2);font-size:15px;text-align:center;padding:32px;
}
.cms-empty svg{color:var(--line-2)}

/* 相关推荐横滑 */
.scroll-x{display:flex;gap:24px;overflow-x:auto;padding-bottom:10px;scroll-snap-type:x mandatory}
.scroll-x > *{flex:0 0 328px;scroll-snap-align:start}
.scroll-x::-webkit-scrollbar{height:6px}
.scroll-x::-webkit-scrollbar-thumb{background:var(--line-2);border-radius:999px}
.rec-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-l);overflow:hidden;box-shadow:var(--sh);height:100%;
  transition:box-shadow var(--t),transform var(--t);
}
.rec-card:hover{box-shadow:var(--sh-h);transform:translateY(-3px)}
.rec-card .thumb{aspect-ratio:16/10;overflow:hidden}
.rec-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform 700ms var(--ease)}
.rec-card:hover .thumb img{transform:scale(1.04)}
.rec-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}

/* 数据统计 */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-card{
  padding:26px 24px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-m);
  box-shadow:var(--sh);
}
.stat-card .num{
  font-size:38px;font-weight:700;color:var(--primary);line-height:1.1;
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.stat-card .num small{font-size:16px;font-weight:600;color:var(--accent);margin-left:4px}
.stat-card .label{margin-top:8px;font-size:15px;font-weight:600}
.stat-card .desc{margin-top:4px;font-size:13px;color:var(--text-2)}

/* 收藏分享 CTA */
.cta-band{
  background:var(--primary);color:#F3EFE7;border-radius:var(--r-l);
  padding:48px;display:grid;grid-template-columns:1.3fr 1fr;gap:40px;align-items:center;
  box-shadow:var(--sh);
}
.cta-band h2{color:#F6F4EF;font-size:clamp(22px,2.6vw,30px)}
.cta-band p{margin-top:14px;color:#C9CFC9;font-size:15px;max-width:52ch}
.cta-kv{display:flex;flex-wrap:wrap;gap:28px;margin-top:24px}
.cta-kv div{font-size:13px;color:#B9C2BC}
.cta-kv b{display:block;font-size:17px;color:#F3EFE7;font-variant-numeric:tabular-nums;font-weight:600}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}

/* FAQ */
.faq-acc{border-top:1px solid var(--line);margin:0;padding:0;list-style:none}
.faq-acc .accordion-item{border-bottom:1px solid var(--line);background:transparent}
.faq-acc .accordion-title{
  display:flex;align-items:center;gap:16px;min-height:64px;padding:18px 4px;
  font-size:17px;font-weight:600;color:var(--text);background:transparent;border:0;
}
.faq-acc .accordion-title:hover{color:var(--primary)}
.faq-acc .accordion-title::before{content:none}
.faq-acc .q-num{font-variant-numeric:tabular-nums;letter-spacing:.18em;color:var(--accent);font-size:13px;flex:0 0 34px}
.faq-acc .q-text{flex:1 1 auto}
.faq-acc .q-mark{
  flex:0 0 auto;width:22px;height:22px;display:inline-flex;align-items:center;justify-content:center;
  color:var(--primary);font-size:18px;line-height:1;transition:transform var(--t);
}
.faq-acc .accordion-item.is-active .q-mark{transform:rotate(90deg);color:var(--accent)}
.faq-acc .accordion-content{
  display:none;padding:0 4px 22px 50px;color:var(--text-2);font-size:15px;line-height:1.85;
  background:transparent;border:0;
}
.acc-fallback .faq-acc .accordion-content{display:block}
.acc-fallback .faq-acc .accordion-content[hidden]{display:none}

/* 页脚 */
.site-footer{background:var(--primary);color:#E8E4DB;margin-top:96px;padding:64px 0 28px}
.footer-wave{height:1px;background:repeating-linear-gradient(90deg,rgba(232,228,219,.45) 0 12px,transparent 12px 22px);margin-bottom:48px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#F6F4EF;font-weight:700;font-size:17px}
.footer-brand svg{color:#C4622D}
.footer-grid p{margin-top:16px;color:#B9C2BC;font-size:14px;max-width:46ch}
.footer-col h3{font-size:15px;color:#F6F4EF;margin-bottom:16px;font-weight:600}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{color:#E8E4DB;font-size:14px}
.footer-col a:hover,.footer-col a:focus{color:var(--accent)}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(232,228,219,.16);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#9FA9A3;
}
.footer-bottom a{color:#E8E4DB}
.footer-bottom a:hover{color:var(--accent)}

/* 动效 */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
}

/* 响应式 */
@media screen and (max-width:1023px){
  .nav-channels,.nav-actions{display:none}
  .nav-toggle{display:flex}
  .nav-wrap{height:60px;justify-content:space-between}
  .hero{padding:44px 0 32px}
  .hero-media{margin-top:32px}
  .hero-media img{border-radius:120px 120px var(--r-l) var(--r-l)}
  .side-sticky{position:static;margin-top:32px}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .cta-band{grid-template-columns:1fr;padding:36px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:64px 0}
}
@media screen and (max-width:639px){
  .section{padding:48px 0}
  .hero-cta .btn{width:100%}
  .anchor-bar a{flex:1 1 auto;justify-content:center}
  .stat-grid{grid-template-columns:1fr}
  .mini-card{flex-direction:column}
  .mini-card .thumb{flex:1 1 auto;width:100%}
  .scroll-x > *{flex:0 0 82%}
  .footer-grid{grid-template-columns:1fr}
  .faq-acc .accordion-content{padding-left:4px}
  .hero-meta{gap:18px}
}

/* roulang page: article */
:root{
  --paper:#F6F4EF;
  --paper-2:#ECE7DE;
  --card:#FBFAF7;
  --primary:#133B36;
  --primary-ink:#0E2A27;
  --accent:#C4622D;
  --accent-ink:#A94F22;
  --text:#16211F;
  --text-2:#5C6663;
  --line:#E0DAD0;
  --line-2:#CFC7BA;
  --r-s:6px;
  --r-m:10px;
  --r-l:18px;
  --shadow-1:0 1px 2px rgba(20,23,26,.04),0 8px 24px rgba(20,23,26,.06);
  --shadow-2:0 1px 2px rgba(20,23,26,.05),0 14px 36px rgba(20,23,26,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --sans:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --serif:"Noto Serif SC","Songti SC",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:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .25s var(--ease)}
a:hover{color:var(--accent)}
h1,h2,h3,h4{font-family:var(--serif);color:var(--primary);margin:0;letter-spacing:-.01em}
p{margin:0 0 18px}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
input,textarea,select{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--primary);color:#fff;padding:10px 16px;border-radius:0 0 var(--r-m) 0;z-index:120}
.skip-link:focus{left:0;color:#fff}
section[id],div[id]{scroll-margin-top:96px}

.grid-container{max-width:1240px;padding-left:32px;padding-right:32px;margin:0 auto}
@media screen and (max-width:1023px){.grid-container{padding-left:28px;padding-right:28px}}
@media screen and (max-width:639px){.grid-container{padding-left:20px;padding-right:20px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(246,244,239,.86);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:22px;height:72px;padding-top:0;padding-bottom:0}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--primary);font-weight:700;font-size:17px;letter-spacing:-.01em;white-space:nowrap;flex:0 0 auto}
.brand:hover{color:var(--primary)}
.brand svg{color:var(--primary);flex:0 0 auto}
.brand-name{color:var(--primary)}
.nav-channels{display:flex;align-items:center;gap:28px;margin-left:6px;flex:1 1 auto}
.nav-channels a{position:relative;display:inline-block;font-size:15px;color:var(--text-2);padding:6px 0;white-space:nowrap}
.nav-channels a::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease)}
.nav-channels a:hover{color:var(--primary)}
.nav-channels a:hover::after{transform:scaleX(1)}
.nav-channels a.is-active{color:var(--primary);font-weight:600}
.nav-channels a.is-active::after{transform:scaleX(1)}
.header-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-search{
  display:flex;align-items:center;gap:8px;
  width:220px;height:38px;padding:0 6px 0 14px;
  background:var(--card);border:1px solid var(--line);border-radius:999px;
  transition:width .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.nav-search:focus-within{width:280px;border-color:var(--primary);box-shadow:0 0 0 3px rgba(19,59,54,.12)}
.nav-search input{
  flex:1 1 auto;min-width:0;height:auto;margin:0;padding:0;border:0;background:transparent;
  font-size:14px;color:var(--text);box-shadow:none;
}
.nav-search input:focus{outline:none;box-shadow:none}
.nav-search input::placeholder{color:#9AA3A0}
.nav-search button{
  flex:0 0 auto;width:30px;height:30px;border:0;border-radius:50%;background:transparent;
  color:var(--text-2);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;
  transition:background .25s var(--ease),color .25s var(--ease);
}
.nav-search button:hover{background:var(--paper-2);color:var(--primary)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border:1px solid transparent;border-radius:var(--r-m);
  font-size:14px;font-weight:600;line-height:1;cursor:pointer;white-space:nowrap;
  transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease);
}
.btn-primary{background:var(--accent);color:#FFF}
.btn-primary:hover{background:var(--accent-ink);color:#FFF;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:var(--line-2);color:var(--text)}
.btn-ghost:hover{background:var(--paper-2);border-color:var(--primary);color:var(--primary)}
.btn-ghost:active{transform:translateY(1px)}
.btn-line{background:transparent;color:var(--primary);padding:8px 0;border-radius:0;border-bottom:1px solid var(--line-2)}
.btn-line:hover{color:var(--accent);border-color:var(--accent)}
.nav-toggle{
  display:none;width:42px;height:38px;border:1px solid var(--line-2);border-radius:var(--r-m);
  background:transparent;cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:16px;height:1.6px;background:var(--primary);border-radius:2px;transition:background .25s var(--ease)}
.nav-toggle:hover{background:var(--paper-2)}

/* ---------- drawer ---------- */
.drawer-backdrop{position:fixed;inset:0;background:rgba(14,42,39,.42);opacity:0;pointer-events:none;transition:opacity .3s var(--ease);z-index:80}
.drawer-backdrop.is-open{opacity:1;pointer-events:auto}
.mobile-drawer{
  position:fixed;top:0;right:0;z-index:90;width:300px;max-width:88vw;height:100%;
  background:var(--card);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .3s var(--ease);
  padding:20px;overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-head .brand-name{font-weight:700;font-size:16px}
.drawer-close{width:34px;height:34px;border:1px solid var(--line-2);border-radius:var(--r-s);background:transparent;color:var(--primary);font-size:18px;line-height:1;cursor:pointer}
.drawer-close:hover{background:var(--paper-2)}
.drawer-nav{display:flex;flex-direction:column;padding:14px 0;border-bottom:1px solid var(--line)}
.drawer-nav a{padding:12px 4px;font-size:15px;color:var(--text);border-bottom:1px solid rgba(224,218,208,.7)}
.drawer-nav a:last-child{border-bottom:0}
.drawer-nav a.is-active{color:var(--accent);font-weight:600}
.drawer-search{display:flex;gap:8px;margin:18px 0}
.drawer-search input{flex:1 1 auto;min-width:0;height:40px;margin:0;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-m);background:var(--card);font-size:14px;color:var(--text);box-shadow:none}
.drawer-search input:focus{border-color:var(--primary);outline:none;box-shadow:none}
.drawer-search button{flex:0 0 auto;width:44px;height:40px;border:0;border-radius:var(--r-m);background:var(--paper-2);color:var(--primary);cursor:pointer}
.drawer-actions{display:flex;flex-direction:column;gap:12px;margin-top:6px}
.drawer-actions .btn{width:100%}

/* ---------- article hero ---------- */
.article-hero{padding:40px 0 8px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-2);letter-spacing:.02em;margin-bottom:22px}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:var(--line-2)}
.breadcrumb .crumb-current{color:var(--primary);font-weight:600;max-width:52vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hero-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:48px;align-items:end}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.18em;color:var(--accent);font-variant-numeric:tabular-nums;
  text-transform:uppercase;margin-bottom:16px;
}
.kicker::before{content:"";width:22px;height:1px;background:var(--accent)}
.article-hero h1{font-size:clamp(30px,4.2vw,48px);line-height:1.2;font-weight:700;letter-spacing:-.02em;margin-bottom:20px}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:13px;color:var(--text-2)}
.meta-row .chip{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:rgba(19,59,54,.08);color:var(--primary);font-size:12px}
.meta-row .num{font-variant-numeric:tabular-nums;letter-spacing:.06em}
.hero-figure{margin:0}
.hero-figure img{
  width:100%;aspect-ratio:16 / 10;object-fit:cover;
  border-radius:110px var(--r-l) var(--r-l) var(--r-l);
  border:1px solid var(--line);box-shadow:var(--shadow-1);
}

/* ---------- article layout ---------- */
.article-wrap{padding:48px 0 0}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:56px;align-items:start}
.article-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-l);
  padding:44px 48px;box-shadow:var(--shadow-1);
}
.article-body{width:100%;max-width:760px;font-size:16px;line-height:1.85;color:var(--text)}
.article-body h2{font-size:clamp(22px,2.6vw,30px);line-height:1.3;margin:48px 0 16px}
.article-body h2:first-child{margin-top:0}
.article-body h3{font-size:20px;line-height:1.35;margin:34px 0 12px}
.article-body h4{font-size:17px;margin:26px 0 10px}
.article-body p{margin:0 0 20px}
.article-body strong{color:var(--primary)}
.article-body ul{margin:0 0 20px}
.article-body ul>li{position:relative;padding-left:22px;margin-bottom:10px}
.article-body ul>li::before{content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;border-radius:1px;background:var(--accent)}
.article-body ol{margin:0 0 20px;counter-reset:artnum}
.article-body ol>li{position:relative;padding-left:34px;margin-bottom:10px;counter-increment:artnum}
.article-body ol>li::before{
  content:counter(artnum,decimal-leading-zero);position:absolute;left:0;top:.28em;
  font-size:13px;color:var(--accent);letter-spacing:.1em;font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:0 0 24px;padding:18px 24px;background:var(--paper-2);
  border-left:3px solid var(--accent);border-radius:0 var(--r-m) var(--r-m) 0;color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{width:100%;height:auto;border-radius:var(--r-m);margin:6px 0 10px;border:1px solid var(--line)}
.article-body figure{margin:0 0 24px}
.article-body figcaption{font-size:13px;color:var(--text-2);text-align:center}
.article-body table{width:100%;border-collapse:collapse;margin:0 0 24px;font-size:15px}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.article-body thead th{background:var(--paper-2);color:var(--primary);font-weight:600}
.article-body tbody tr:nth-child(even){background:rgba(236,231,222,.45)}
.article-body code{background:var(--paper-2);border-radius:4px;padding:2px 6px;font-size:14px;color:var(--accent-ink)}
.article-body a{border-bottom:1px solid rgba(196,98,45,.4)}
.article-body a:hover{border-color:var(--accent)}
.cms-empty{
  min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;text-align:center;color:var(--text-2);
}
.cms-empty svg{color:var(--line-2)}
.cms-empty h2{font-size:22px;margin:0}
.cms-empty p{margin:0;font-size:14px}

/* ---------- sidebar ---------- */
.side-col{position:sticky;top:96px;display:flex;flex-direction:column;gap:24px}
.side-box{background:var(--card);border:1px solid var(--line);border-radius:var(--r-m);padding:20px 22px;box-shadow:var(--shadow-1)}
.side-box h3{font-size:13px;letter-spacing:.16em;color:var(--text-2);font-family:var(--sans);font-weight:600;margin-bottom:14px;text-transform:uppercase}
.toc-list{display:flex;flex-direction:column}
.toc-list a{
  display:block;padding:9px 0 9px 14px;font-size:14px;color:var(--text-2);
  border-left:1px solid var(--line);transition:color .25s var(--ease),border-color .25s var(--ease),padding-left .25s var(--ease);
}
.toc-list a:hover{color:var(--primary);border-color:var(--line-2);padding-left:18px}
.toc-list a.is-current{color:var(--accent);border-color:var(--accent);font-weight:600}
.toc-empty{font-size:13px;color:var(--text-2)}
.side-links{display:flex;flex-direction:column}
.side-links a{display:flex;align-items:flex-start;gap:10px;padding:12px 0;border-bottom:1px solid var(--line);font-size:14px;color:var(--text)}
.side-links a:last-child{border-bottom:0;padding-bottom:0}
.side-links a:first-child{padding-top:0}
.side-links a:hover{color:var(--accent)}
.side-links .idx{font-size:12px;color:var(--accent);letter-spacing:.14em;font-variant-numeric:tabular-nums;flex:0 0 auto;padding-top:3px}
.side-links .txt small{display:block;font-size:12.5px;color:var(--text-2);margin-top:4px;line-height:1.6}

/* ---------- article bottom ---------- */
.article-bottom{padding:56px 0 0}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:28px}
.tag-row .label{font-size:13px;color:var(--text-2);letter-spacing:.04em}
.tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;background:var(--paper-2);color:var(--text-2);font-size:12.5px;border:1px solid var(--line)}
.tag:hover{color:var(--accent);border-color:var(--line-2)}
.share-band{
  background:var(--primary);color:#E8E4DB;border-radius:var(--r-l);
  padding:34px 40px;display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between;
}
.share-band h2{color:#FFF;font-size:22px;margin-bottom:6px}
.share-band p{color:#C9CDC7;margin:0;font-size:14px}
.share-band .kv{display:flex;flex-wrap:wrap;gap:18px;margin-top:14px;font-size:12.5px;color:#A9B2AE;letter-spacing:.04em}
.share-band .kv span{font-variant-numeric:tabular-nums}
.share-actions{display:flex;flex-wrap:wrap;gap:12px}
.btn-on-dark{background:#FFF;color:var(--primary);border-color:#FFF}
.btn-on-dark:hover{background:var(--paper-2);color:var(--primary-ink);border-color:var(--paper-2)}
.btn-outline-light{background:transparent;color:#E8E4DB;border-color:rgba(232,228,219,.42)}
.btn-outline-light:hover{background:rgba(255,255,255,.1);color:#FFF;border-color:#FFF}

.next-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:56px}
.next-card{
  display:flex;flex-direction:column;gap:10px;padding:22px 24px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-m);
  box-shadow:var(--shadow-1);transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.next-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--line-2);color:var(--primary)}
.next-card .idx{font-size:12px;letter-spacing:.18em;color:var(--accent);font-variant-numeric:tabular-nums}
.next-card h3{font-size:17px}
.next-card p{font-size:13.5px;color:var(--text-2);margin:0}
.next-card .go{font-size:13px;color:var(--primary);margin-top:4px;display:inline-flex;align-items:center;gap:6px}
.next-card:hover .go{color:var(--accent)}
.next-card .go i{transition:transform .25s var(--ease)}
.next-card:hover .go i{transform:translateX(3px)}

/* ---------- section heads ---------- */
.section{padding:64px 0 0}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px}
.section-head h2{font-size:clamp(22px,2.6vw,30px)}
.section-head .sub{font-size:14px;color:var(--text-2);margin:6px 0 0}
.section-head .more{font-size:14px;color:var(--primary);display:inline-flex;align-items:center;gap:6px}
.section-head .more:hover{color:var(--accent)}

/* ---------- faq ---------- */
.site-faq .accordion{border:1px solid var(--line);border-radius:var(--r-m);background:var(--card);overflow:hidden;box-shadow:var(--shadow-1)}
.site-faq .accordion-item{border-bottom:1px solid var(--line)}
.site-faq .accordion-item:last-child{border-bottom:0}
.site-faq .accordion-title{
  display:flex;align-items:center;gap:16px;padding:20px 24px;background:transparent;
  color:var(--primary);font-size:16px;font-weight:600;border:0;line-height:1.5;
  transition:background .25s var(--ease),color .25s var(--ease);
}
.site-faq .accordion-title::before{content:none}
.site-faq .accordion-title:hover{background:var(--paper-2)}
.site-faq .accordion-title .no{font-size:12px;color:var(--accent);letter-spacing:.18em;font-variant-numeric:tabular-nums;flex:0 0 auto}
.site-faq .accordion-title .mark{margin-left:auto;color:var(--text-2);flex:0 0 auto;transition:transform .25s var(--ease)}
.site-faq .accordion-title[aria-expanded="true"] .mark{transform:rotate(90deg);color:var(--accent)}
.site-faq .accordion-content{padding:0 24px 22px 58px;color:var(--text-2);background:transparent;border:0;font-size:15px}
.site-faq .accordion-content p:last-child{margin-bottom:0}

/* ---------- footer ---------- */
.site-footer{margin-top:80px;background:var(--primary);color:#E8E4DB}
.site-footer .grid-container{padding-top:52px;padding-bottom:28px}
.footer-wave{height:1px;background:repeating-linear-gradient(90deg,rgba(196,98,45,.85) 0 18px,rgba(232,228,219,.18) 18px 46px);margin-bottom:36px}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr) minmax(0,1fr);gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#FFF;font-weight:700;font-size:16px;margin-bottom:14px}
.footer-brand svg{color:var(--accent)}
.site-footer p{color:#B9C0BB;font-size:14px;max-width:44ch;margin:0}
.footer-col h3{color:#FFF;font-size:13px;letter-spacing:.16em;font-family:var(--sans);font-weight:600;margin-bottom:14px;text-transform:uppercase}
.footer-col ul li{margin-bottom:10px}
.footer-col a{color:#E8E4DB;font-size:14px}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(232,228,219,.16);
  font-size:13px;color:#9AA5A0;letter-spacing:.02em;
}
.footer-bottom a{color:#E8E4DB}
.footer-bottom a:hover{color:var(--accent)}

/* ---------- animations ---------- */
.fade-up{opacity:0;transform:translateY(8px)}
.fade-up.is-in{opacity:1;transform:none;transition:opacity .6s var(--ease),transform .6s var(--ease)}

/* ---------- responsive ---------- */
@media screen and (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:36px}
  .article-card{padding:36px 32px}
}
@media screen and (max-width:1023px){
  .nav-channels,.header-tools .nav-search,.header-tools .btn-ghost{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{height:60px}
  .header-tools{margin-left:auto}
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:28px;align-items:start}
  .hero-figure{order:2}
  .hero-figure img{border-radius:90px var(--r-l) var(--r-l) var(--r-l)}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .side-col{position:static}
  .next-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
  .footer-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:32px}
}
@media screen and (max-width:639px){
  body{font-size:15.5px}
  .article-hero{padding:28px 0 4px}
  .article-card{padding:26px 20px;border-radius:var(--r-m)}
  .breadcrumb .crumb-current{max-width:44vw}
  .meta-row{font-size:12.5px;gap:8px 14px}
  .article-body h2{margin-top:36px}
  .tag-row{gap:8px}
  .share-band{padding:26px 22px}
  .next-grid{grid-template-columns:minmax(0,1fr)}
  .site-faq .accordion-title{padding:16px 18px;font-size:15px}
  .site-faq .accordion-content{padding:0 18px 18px 44px}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .fade-up{opacity:1;transform:none}
}

/* roulang page: category1 */
:root{
  --paper:#F6F4EF;
  --paper-2:#ECE7DE;
  --card:#FBFAF7;
  --primary:#133B36;
  --primary-ink:#0E2A27;
  --accent:#C4622D;
  --accent-ink:#A94F22;
  --text:#16211F;
  --text-2:#5C6663;
  --line:#E0DAD0;
  --line-2:#CFC7BA;
  --r-s:6px;
  --r-m:10px;
  --r-l:18px;
  --sh-1:0 1px 2px rgba(20,23,26,.04), 0 8px 24px rgba(20,23,26,.06);
  --sh-2:0 1px 2px rgba(20,23,26,.04), 0 14px 36px rgba(20,23,26,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --t:.25s cubic-bezier(.22,.61,.36,1);
  --sans:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --serif:"Noto Serif SC","Songti SC","STSong",serif;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--accent);}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
h1,h2,h3,h4{color:var(--text);margin:0;font-weight:700;}
h1{font-family:var(--serif);font-size:clamp(34px,5vw,58px);line-height:1.15;letter-spacing:-.02em;}
h2{font-family:var(--serif);font-size:clamp(24px,3vw,34px);line-height:1.25;letter-spacing:-.01em;}
h3{font-size:20px;line-height:1.35;}
p{margin:0 0 18px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
.grid-container{width:100%;max-width:1240px;margin:0 auto;padding-left:32px;padding-right:32px;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,244,239,.86);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:26px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;color:var(--primary);font-weight:700;font-size:17px;letter-spacing:-.01em;flex:none;}
.brand svg{flex:none;}
.brand-name{white-space:nowrap;}
.nav-channels{display:flex;align-items:center;gap:26px;margin-left:6px;}
.nav-channels a{position:relative;font-size:15px;color:var(--text-2);padding:6px 0;}
.nav-channels a::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--accent);
  transition:right var(--t);
}
.nav-channels a:hover{color:var(--primary);}
.nav-channels a:hover::after{right:0;}
.nav-channels a.is-active{color:var(--primary);font-weight:600;}
.nav-channels a.is-active::after{right:0;}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.nav-search{display:flex;}
.nav-search input{
  width:220px;height:38px;border:1px solid var(--line);border-radius:999px;background:var(--card);
  padding:0 16px;font-size:14px;color:var(--text);font-family:inherit;
  transition:width var(--t),border-color var(--t),box-shadow var(--t);
}
.nav-search input::placeholder{color:var(--text-2);}
.nav-search input:focus{outline:none;width:280px;border-color:var(--primary);box-shadow:0 0 0 2px rgba(19,59,54,.12);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-m);padding:12px 22px;font-size:14px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;text-align:center;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn-primary{background:var(--accent);color:#FFFFFF;}
.btn-primary:hover{background:var(--accent-ink);color:#FFFFFF;transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;border-color:var(--line-2);color:var(--text);}
.btn-ghost:hover{background:var(--paper-2);border-color:var(--primary);color:var(--primary);}
.btn-dark{background:var(--primary);color:#F3EFE7;}
.btn-dark:hover{background:var(--primary-ink);color:#F3EFE7;transform:translateY(-1px);}
.btn-outline-light{background:transparent;border-color:rgba(241,237,229,.42);color:#F1EDE5;}
.btn-outline-light:hover{background:rgba(241,237,229,.14);border-color:#F1EDE5;color:#FFFFFF;}
.btn-sm{padding:9px 16px;font-size:13px;border-radius:var(--r-s);}
.btn-block{width:100%;}

/* ---------- Mobile nav ---------- */
.nav-toggle{
  display:none;margin-left:auto;width:42px;height:38px;border:1px solid var(--line-2);
  border-radius:var(--r-s);background:var(--card);padding:0;cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:1.6px;background:var(--primary);transition:transform var(--t),opacity var(--t);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5.6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-5.6px) rotate(-45deg);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,42,39,.34);opacity:0;visibility:hidden;
  transition:opacity var(--t),visibility var(--t);z-index:70;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.nav-drawer{
  position:fixed;top:0;right:0;width:300px;max-width:86vw;height:100%;
  background:var(--paper);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform var(--t);
  z-index:80;padding:26px 24px 40px;overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-title{font-size:13px;letter-spacing:.16em;color:var(--text-2);margin-bottom:14px;}
.drawer-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:28px;}
.drawer-nav a{
  display:block;padding:12px 12px;border-radius:var(--r-s);font-size:16px;color:var(--text);
  border:1px solid transparent;
}
.drawer-nav a:hover{background:var(--paper-2);color:var(--primary);}
.drawer-nav a.is-active{color:var(--primary);font-weight:700;border-color:var(--line);background:var(--card);}
.drawer-search{margin-bottom:18px;}
.drawer-search input{
  width:100%;height:42px;border:1px solid var(--line);border-radius:var(--r-m);
  background:var(--card);padding:0 14px;font-size:14px;font-family:inherit;color:var(--text);
}
.drawer-search input:focus{outline:none;border-color:var(--primary);}
.drawer-cta{display:flex;flex-direction:column;gap:10px;}

/* ---------- Hero ---------- */
.page-hero{padding:56px 0 0;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2);letter-spacing:.02em;margin-bottom:26px;flex-wrap:wrap;}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{color:var(--line-2);}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:12px;letter-spacing:.2em;color:var(--accent);
  text-transform:uppercase;margin-bottom:18px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--accent);display:block;}
.hero-lead{font-size:17px;color:var(--text-2);max-width:34em;margin:20px 0 30px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;}
.hero-cover{
  border:1px solid var(--line);
  border-radius:150px 150px var(--r-l) var(--r-l);
  overflow:hidden;aspect-ratio:16/11;box-shadow:var(--sh-1);background:var(--paper-2);
}
.hero-cover img{width:100%;height:100%;object-fit:cover;transition:transform .7s var(--ease);}
.hero-cover:hover img{transform:scale(1.04);}

/* anchor bar */
.anchor-bar{
  display:flex;flex-wrap:wrap;gap:10px 30px;
  margin-top:44px;padding:18px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.anchor-bar a{display:inline-flex;align-items:center;gap:10px;font-size:14px;color:var(--text-2);}
.anchor-bar a .num{font-family:var(--mono);font-size:12px;letter-spacing:.18em;color:var(--accent);}
.anchor-bar a:hover{color:var(--primary);}

/* stats */
.stat-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r-m);overflow:hidden;margin-top:36px;
}
.stat{background:var(--card);padding:18px 20px;}
.stat .k{font-size:13px;color:var(--text-2);letter-spacing:.02em;display:block;}
.stat .v{font-family:var(--mono);font-size:21px;color:var(--primary);letter-spacing:.04em;display:block;margin-top:6px;}

/* ---------- Sections ---------- */
.section{padding:88px 0 0;}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head .kicker{font-family:var(--mono);font-size:12px;letter-spacing:.2em;color:var(--accent);display:block;margin-bottom:12px;}
.section-head p{color:var(--text-2);margin-top:14px;}

/* index layout */
.index-layout{display:grid;grid-template-columns:280px 1fr;gap:56px;align-items:start;}
.index-side{position:sticky;top:96px;}
.index-side .side-title{font-size:13px;letter-spacing:.16em;color:var(--text-2);margin-bottom:14px;font-family:var(--mono);}
.index-side a{
  display:flex;align-items:center;gap:12px;padding:11px 14px;border-radius:var(--r-s);
  font-size:15px;color:var(--text-2);border-left:2px solid transparent;transition:all var(--t);
}
.index-side a:hover{background:var(--paper-2);color:var(--primary);}
.index-side a.is-current{background:var(--paper-2);color:var(--primary);font-weight:600;border-left-color:var(--accent);}
.index-side .num{font-family:var(--mono);font-size:12px;letter-spacing:.18em;color:var(--accent);}

.topic-section{margin-bottom:56px;scroll-margin-top:96px;}
.topic-section:last-child{margin-bottom:0;}
.topic-head{padding-bottom:16px;margin-bottom:8px;}
.topic-head .tagline{font-size:14px;color:var(--text-2);margin-top:10px;max-width:60ch;}
.entry-list{border-top:1px solid var(--line);}
.entry{
  display:grid;grid-template-columns:64px 1fr auto;gap:20px;align-items:start;
  padding:22px 6px;border-bottom:1px solid var(--line);
  transition:background var(--t),transform var(--t);
}
.entry:hover{background:var(--paper-2);transform:translateX(4px);}
.entry-num{font-family:var(--mono);font-size:13px;letter-spacing:.18em;color:var(--accent);padding-top:5px;}
.entry-title{font-size:17px;font-weight:600;color:var(--text);margin:0 0 6px;line-height:1.5;}
.entry-desc{color:var(--text-2);font-size:15px;line-height:1.8;margin:0;max-width:58ch;}
.entry-link{
  align-self:center;white-space:nowrap;font-size:14px;font-weight:600;color:var(--primary);
  display:inline-flex;align-items:center;gap:6px;
}
.entry-link .arrow{transition:transform var(--t);display:inline-block;}
.entry-link:hover{color:var(--accent);}
.entry-link:hover .arrow{transform:translateX(3px);}

/* scenes cards */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-l);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform var(--t),box-shadow var(--t);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.card-media{aspect-ratio:16/10;overflow:hidden;background:var(--paper-2);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .7s var(--ease);}
.card:hover .card-media img{transform:scale(1.04);}
.card-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  background:var(--paper-2);color:var(--text-2);font-size:12px;letter-spacing:.02em;align-self:flex-start;
}
.badge-accent{background:rgba(19,59,54,.09);color:var(--primary);}
.card-body h3{font-size:19px;}
.card-body p{color:var(--text-2);font-size:15px;margin:0;}
.card-foot{margin-top:auto;padding-top:6px;}

/* steps */
.steps{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r-m);overflow:hidden;
}
.step{background:var(--card);padding:26px 22px;transition:background var(--t);}
.step:hover{background:var(--paper-2);}
.step .num{font-family:var(--mono);font-size:13px;letter-spacing:.18em;color:var(--accent);display:block;margin-bottom:14px;}
.step h3{font-size:17px;margin-bottom:10px;}
.step p{color:var(--text-2);font-size:14.5px;margin:0;line-height:1.8;}

/* related */
.related-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.related-card{
  display:grid;grid-template-columns:150px 1fr;gap:20px;align-items:center;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-l);
  padding:18px;box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t);
}
.related-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.related-thumb{aspect-ratio:16/11;border-radius:var(--r-m);overflow:hidden;background:var(--paper-2);}
.related-thumb img{width:100%;height:100%;object-fit:cover;}
.related-card h3{font-size:18px;margin-bottom:8px;}
.related-card p{color:var(--text-2);font-size:14.5px;margin:0 0 10px;}

/* FAQ */
.faq-wrap{max-width:860px;}
.accordion{background:transparent;border-top:1px solid var(--line);margin:0;list-style:none;}
.accordion .accordion-item{background:transparent;border-bottom:1px solid var(--line);}
.accordion .accordion-title{
  position:relative;display:flex;align-items:center;gap:18px;
  padding:24px 6px;font-size:17px;font-weight:600;color:var(--text);
  background:transparent;border:0;line-height:1.5;transition:color var(--t),background var(--t);
}
.accordion .accordion-title:hover{color:var(--accent);background:var(--paper-2);}
.accordion .accordion-title::before{
  content:"+";position:static;top:auto;right:auto;margin:0 0 0 auto;transform:none;
  color:var(--accent);font-size:22px;line-height:1;font-weight:400;background:none;
  transition:transform var(--t);
}
.accordion .accordion-item.is-active > .accordion-title::before{content:"+";transform:rotate(45deg);}
.accordion .accordion-title .faq-num{font-family:var(--mono);font-size:12px;letter-spacing:.18em;color:var(--accent);flex:none;}
.accordion .accordion-content{
  display:block;padding:0 6px 26px 58px;background:transparent;border:0;
  color:var(--text-2);font-size:15.5px;line-height:1.85;
}
.accordion .accordion-content p{margin:0;}

/* CTA band */
.cta-band{
  background:var(--primary);color:#F1EDE5;border-radius:var(--r-l);
  padding:48px;display:grid;grid-template-columns:1.4fr 1fr;gap:44px;align-items:center;
  box-shadow:var(--sh-1);
}
.cta-band h2{color:#F6F4EF;}
.cta-band p{color:rgba(241,237,229,.82);font-size:16px;margin-top:14px;max-width:46ch;}
.cta-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:28px;}
.cta-meta .k{font-size:12px;letter-spacing:.14em;color:rgba(241,237,229,.6);display:block;font-family:var(--mono);}
.cta-meta .v{font-size:15px;color:#F6F4EF;display:block;margin-top:6px;}
.cta-actions{display:flex;flex-direction:column;gap:12px;}

/* Footer */
.site-footer{background:var(--primary);color:#E8E4DB;margin-top:96px;padding:64px 0 28px;}
.footer-wave{
  height:1px;margin-bottom:40px;
  background:repeating-linear-gradient(90deg,rgba(232,228,219,.55) 0 18px,transparent 18px 36px);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#F6F4EF;margin-bottom:16px;}
.footer-brand svg{flex:none;color:#E8E4DB;}
.site-footer p{color:rgba(232,228,219,.78);font-size:14.5px;line-height:1.9;max-width:46ch;margin:0;}
.footer-col h3{font-size:14px;letter-spacing:.06em;color:#F6F4EF;margin:0 0 16px;font-weight:600;}
.footer-col li{margin-bottom:11px;}
.footer-col a{color:#E8E4DB;font-size:14.5px;}
.footer-col a:hover{color:var(--accent);}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(232,228,219,.16);
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(232,228,219,.7);
}
.footer-bottom a{color:#E8E4DB;}
.footer-bottom a:hover{color:var(--accent);}

/* Reveal */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
.card-grid > .reveal:nth-child(2){transition-delay:60ms;}
.card-grid > .reveal:nth-child(3){transition-delay:120ms;}
.related-grid > .reveal:nth-child(2){transition-delay:60ms;}

/* ---------- Responsive ---------- */
@media screen and (max-width:1199px){
  .hero-grid{gap:40px;}
  .index-layout{grid-template-columns:240px 1fr;gap:40px;}
}
@media screen and (max-width:1023px){
  .grid-container{padding-left:28px;padding-right:28px;}
  .nav-channels,.nav-search,.header-actions{display:none;}
  .nav-toggle{display:flex;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-cover{order:2;border-radius:110px 110px var(--r-l) var(--r-l);max-width:640px;}
  .index-layout{grid-template-columns:1fr;gap:32px;}
  .index-side{position:static;}
  .index-side ol{display:grid;grid-template-columns:repeat(2,1fr);gap:6px;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .related-grid{grid-template-columns:1fr;}
  .cta-band{grid-template-columns:1fr;padding:38px;gap:30px;}
  .cta-actions{flex-direction:row;}
  .cta-actions .btn{flex:1;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-grid > div:first-child{grid-column:1 / -1;}
}
@media screen and (max-width:767px){
  .stat-bar{grid-template-columns:repeat(2,1fr);}
  .card-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .related-card{grid-template-columns:1fr;gap:14px;}
  .related-thumb{aspect-ratio:16/9;}
  .entry{grid-template-columns:48px 1fr;gap:14px;}
  .entry-link{grid-column:2;justify-self:start;}
  .accordion .accordion-content{padding-left:6px;padding-bottom:22px;}
  .section{padding:64px 0 0;}
}
@media screen and (max-width:639px){
  .grid-container{padding-left:20px;padding-right:20px;}
  .header-inner{height:60px;}
  .brand{font-size:16px;}
  .hero-cover{border-radius:84px 84px var(--r-l) var(--r-l);}
  .hero-cta{flex-direction:column;align-items:stretch;}
  .hero-lead{margin-bottom:24px;}
  .anchor-bar{gap:8px 20px;}
  .index-side ol{grid-template-columns:1fr;}
  .stat{padding:14px 16px;}
  .cta-band{padding:28px 22px;border-radius:var(--r-m);}
  .cta-actions{flex-direction:column;}
  .cta-meta{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .entry-num{padding-top:3px;}
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  .reveal{opacity:1;transform:none;}
  .card:hover,.related-card:hover,.btn:hover{transform:none;}
  .hero-cover:hover img,.card:hover .card-media img{transform:none;}
}

/* roulang page: category2 */
:root{
  --paper:#F6F4EF;
  --paper-2:#ECE7DE;
  --card:#FBFAF7;
  --primary:#133B36;
  --primary-ink:#0E2A27;
  --accent:#C4622D;
  --accent-ink:#A94F22;
  --text:#16211F;
  --text-2:#5C6663;
  --line:#E0DAD0;
  --line-2:#CFC7BA;
  --r-s:6px;
  --r-m:10px;
  --r-l:18px;
  --sh-1:0 1px 2px rgba(20,23,26,.04),0 8px 24px rgba(20,23,26,.06);
  --sh-2:0 1px 2px rgba(20,23,26,.05),0 14px 36px rgba(20,23,26,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --sans:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --serif:"Noto Serif SC","Songti SC",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:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img{max-width:100%;display:block;border:0;}
a{color:var(--primary);text-decoration:none;transition:color .25s var(--ease);}
a:hover{color:var(--accent);}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
button{font-family:inherit;}
h1,h2,h3,h4{font-family:var(--serif);color:var(--primary);letter-spacing:-.01em;margin:0;}
h1{font-size:clamp(34px,5vw,58px);font-weight:700;line-height:1.15;letter-spacing:-.02em;}
h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.25;margin-bottom:16px;}
h3{font-size:21px;font-weight:700;line-height:1.35;letter-spacing:0;margin-bottom:10px;}
p{margin:0 0 18px;max-width:68ch;}
ul,ol{margin:0;padding:0;list-style:none;}
hr{border:0;border-top:1px solid var(--line);margin:0;}

.grid-container{max-width:1200px;padding-left:20px;padding-right:20px;margin-left:auto;margin-right:auto;}
@media screen and (min-width:40em){
  .grid-container{padding-left:28px;padding-right:28px;}
}
@media screen and (min-width:64em){
  .grid-container{max-width:1240px;padding-left:32px;padding-right:32px;}
}

.skip-link{position:absolute;left:-9999px;top:0;background:var(--primary);color:#fff;padding:10px 16px;z-index:200;}
.skip-link:focus{left:12px;top:12px;color:#fff;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,244,239,.86);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:26px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--primary);font-weight:700;font-size:17px;letter-spacing:-.01em;}
.brand svg{width:28px;height:28px;color:var(--primary);flex:0 0 auto;}
.brand:hover{color:var(--primary);}
.brand:hover svg{color:var(--accent);}
.brand svg{transition:color .25s var(--ease);}

.nav-channels{display:flex;align-items:center;gap:26px;margin-left:8px;}
.nav-channels a{
  position:relative;
  font-size:15px;
  color:var(--text-2);
  padding:24px 0;
  white-space:nowrap;
  transition:color .25s var(--ease);
}
.nav-channels a::after{
  content:"";position:absolute;left:0;right:0;bottom:14px;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .25s var(--ease);
}
.nav-channels a:hover{color:var(--primary);}
.nav-channels a:hover::after{transform:scaleX(1);}
.nav-channels a.is-active{color:var(--primary);font-weight:600;}
.nav-channels a.is-active::after{transform:scaleX(1);}

.header-tools{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-search{position:relative;}
.nav-search input{
  width:220px;height:40px;
  border:1px solid var(--line);
  border-radius:999px;
  background:var(--card);
  padding:0 38px 0 16px;
  font-size:14px;color:var(--text);
  transition:width .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.nav-search input::placeholder{color:var(--text-2);}
.nav-search input:focus{
  width:280px;outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 2px rgba(19,59,54,.12);
}
.nav-search .search-icon{
  position:absolute;right:14px;top:50%;transform:translateY(-50%);
  color:var(--text-2);font-size:13px;pointer-events:none;
}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-m);
  font-size:15px;font-weight:600;
  padding:11px 22px;
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease);
  text-align:center;
  line-height:1.2;
}
.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent);}
.btn-primary:hover{background:var(--accent-ink);border-color:var(--accent-ink);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);background:var(--accent-ink);}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line-2);}
.btn-ghost:hover{background:var(--paper-2);border-color:var(--primary);color:var(--primary);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-quiet{background:transparent;border-color:transparent;color:var(--primary);padding:11px 12px;position:relative;}
.btn-quiet::after{
  content:"";position:absolute;left:12px;right:12px;bottom:6px;height:1px;background:currentColor;
  transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease);
}
.btn-quiet:hover{color:var(--accent);}
.btn-quiet:hover::after{transform:scaleX(1);}

.nav-toggle{
  display:none;width:42px;height:42px;align-items:center;justify-content:center;
  border:1px solid var(--line-2);border-radius:var(--r-m);background:var(--card);color:var(--primary);
  cursor:pointer;font-size:17px;transition:background-color .25s var(--ease),border-color .25s var(--ease);
}
.nav-toggle:hover{background:var(--paper-2);border-color:var(--primary);}

.drawer-backdrop{
  position:fixed;inset:0;background:rgba(14,42,39,.42);
  opacity:0;visibility:hidden;transition:opacity .25s var(--ease),visibility .25s var(--ease);z-index:90;
}
.drawer-backdrop.is-open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;right:0;width:300px;max-width:86vw;height:100%;
  background:var(--paper);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .28s var(--ease);
  z-index:100;padding:22px 22px 32px;display:flex;flex-direction:column;gap:6px;overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.drawer-head span{font-weight:700;color:var(--primary);font-size:16px;}
.drawer-close{width:38px;height:38px;border-radius:var(--r-m);border:1px solid var(--line-2);background:var(--card);color:var(--primary);cursor:pointer;}
.mobile-drawer a.drawer-link{
  display:block;padding:14px 4px;border-bottom:1px solid var(--line);
  color:var(--text);font-size:15px;font-weight:500;
}
.mobile-drawer a.drawer-link.is-active{color:var(--accent);font-weight:700;}
.mobile-drawer a.drawer-link:hover{color:var(--accent);}
.drawer-search{margin:16px 0 8px;}
.drawer-search input{
  width:100%;height:42px;border:1px solid var(--line);border-radius:999px;
  background:var(--card);padding:0 16px;font-size:14px;color:var(--text);
}
.drawer-search input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 2px rgba(19,59,54,.12);}
.drawer-actions{display:flex;flex-direction:column;gap:10px;margin-top:18px;}
.drawer-actions .btn{width:100%;}

/* ============ 通用区块 ============ */
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--alt{background:var(--paper-2);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:40px;flex-wrap:wrap;}
.section-head p{margin:0;color:var(--text-2);font-size:15px;max-width:52ch;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.18em;color:var(--accent);
  font-variant-numeric:tabular-nums;text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--accent);display:inline-block;}
.lede{font-size:17px;color:var(--text-2);max-width:62ch;}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 11px;
  border-radius:999px;background:var(--paper-2);color:var(--text-2);
  font-size:12px;letter-spacing:.02em;white-space:nowrap;
}
.badge--primary{background:rgba(19,59,54,.1);color:var(--primary);}
.badge--accent{background:rgba(196,98,45,.12);color:var(--accent-ink);}
.mono{font-variant-numeric:tabular-nums;letter-spacing:.02em;}

/* ============ 分类页头 ============ */
.page-hero{padding:56px 0 72px;border-bottom:1px solid var(--line);}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2);margin-bottom:22px;flex-wrap:wrap;}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{color:var(--line-2);}
.breadcrumb .current{color:var(--primary);font-weight:600;}
.page-hero h1{max-width:19ch;margin-bottom:18px;}
.page-hero .lede{margin-bottom:26px;}
.stat-bar{
  display:flex;flex-wrap:wrap;gap:32px;
  padding:18px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  margin-bottom:40px;
}
.stat-item{display:flex;flex-direction:column;gap:2px;}
.stat-item .stat-num{font-size:22px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;letter-spacing:.04em;}
.stat-item .stat-label{font-size:13px;color:var(--text-2);letter-spacing:.02em;}
.hero-media{margin:0;overflow:hidden;box-shadow:var(--sh-1);border:1px solid var(--line);}
.hero-media img{width:100%;height:400px;object-fit:cover;}
.arch{border-radius:200px 200px var(--r-l) var(--r-l);}
.hero-media figcaption{font-size:13px;color:var(--text-2);padding:10px 4px 0;}

/* ============ 图文交替 ============ */
.alt-list{margin-top:8px;}
.alt-row{padding:0;align-items:center;scroll-margin-top:96px;}
.alt-row + .alt-row{margin-top:72px;}
.alt-media{margin-bottom:0;}
.alt-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-l);border:1px solid var(--line);box-shadow:var(--sh-1);
  transition:transform .7s var(--ease),box-shadow .25s var(--ease);
}
.alt-row:hover .alt-media img{transform:scale(1.04);box-shadow:var(--sh-2);}
.alt-media{overflow:hidden;border-radius:var(--r-l);}
.alt-body{padding:0 0 0 8px;}
.alt-num{
  display:block;font-family:var(--serif);font-size:14px;letter-spacing:.18em;
  color:var(--accent);font-variant-numeric:tabular-nums;margin-bottom:10px;
}
.alt-body h2{font-size:clamp(22px,2.4vw,28px);margin-bottom:12px;}
.alt-body p{color:var(--text-2);font-size:16px;margin-bottom:16px;}
.point-list{margin-bottom:18px;}
.point-list li{
  position:relative;padding-left:18px;font-size:15px;color:var(--text);
  margin-bottom:8px;line-height:1.7;
}
.point-list li::before{
  content:"";position:absolute;left:0;top:11px;width:7px;height:7px;
  background:var(--accent);border-radius:2px;
}
.meta-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;}
@media screen and (min-width:64em){
  .alt-row--rev .alt-media{order:2;}
  .alt-row--rev .alt-body{order:1;padding-left:0;padding-right:8px;}
}

/* ============ 三步流程 ============ */
.flow{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:8px;}
.flow-step{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-m);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.flow-step:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--line-2);}
.flow-step .flow-num{
  display:block;font-family:var(--serif);font-size:13px;letter-spacing:.18em;
  color:var(--accent);font-variant-numeric:tabular-nums;margin-bottom:12px;
}
.flow-step h3{font-size:18px;margin-bottom:8px;}
.flow-step p{font-size:14.5px;color:var(--text-2);margin:0;}

/* ============ 对照表 ============ */
.table-wrap{
  border:1px solid var(--line);border-radius:var(--r-m);background:var(--card);
  overflow-x:auto;box-shadow:var(--sh-1);
}
table.spec-table{width:100%;border-collapse:collapse;min-width:640px;margin:0;background:transparent;}
table.spec-table caption{text-align:left;font-size:13px;color:var(--text-2);padding:14px 20px 0;}
table.spec-table th,table.spec-table td{
  padding:16px 20px;text-align:left;font-size:15px;border-bottom:1px solid var(--line);vertical-align:top;
}
table.spec-table thead th{
  background:var(--paper-2);color:var(--primary);font-weight:700;font-size:14px;letter-spacing:.02em;
  border-bottom:1px solid var(--line-2);
}
table.spec-table tbody tr:nth-child(even){background:rgba(236,231,222,.42);}
table.spec-table tbody tr:last-child td{border-bottom:0;}
table.spec-table tbody td:first-child{font-weight:600;color:var(--primary);}
table.spec-table tbody td{color:var(--text-2);}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;}
.faq-acc{border:0;background:transparent;margin:0;}
.faq-acc .accordion-item{border:0;border-bottom:1px solid var(--line);}
.faq-acc .accordion-item:first-child{border-top:1px solid var(--line);}
.faq-acc .accordion-title{
  position:relative;display:block;
  background:transparent;border:0;
  padding:0 56px 0 46px;min-height:64px;line-height:64px;
  font-size:16px;font-weight:600;color:var(--text);
  transition:color .25s var(--ease),background-color .25s var(--ease);
}
.faq-acc .accordion-title::before{display:none;}
.faq-acc .accordion-title::after{
  content:"+";position:absolute;right:14px;top:50%;transform:translateY(-50%);
  font-size:20px;color:var(--accent);line-height:1;transition:transform .25s var(--ease);
}
.faq-acc .accordion-item.is-active .accordion-title::after{content:"−";transform:translateY(-50%) rotate(180deg);}
.faq-acc .accordion-title:hover{color:var(--accent);background:var(--paper-2);}
.faq-acc .faq-num{
  position:absolute;left:8px;top:50%;transform:translateY(-50%);
  font-size:13px;letter-spacing:.14em;color:var(--accent);font-variant-numeric:tabular-nums;
}
.faq-acc .accordion-content{
  background:transparent;border:0;padding:2px 56px 26px 46px;color:var(--text-2);font-size:15.5px;
}
.faq-acc .accordion-content p{margin:0;max-width:66ch;}

/* ============ 相关分类推荐 ============ */
.rel-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.rel-card{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-l);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--line-2);}
.rel-card img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .7s var(--ease);}
.rel-card:hover img{transform:scale(1.04);}
.rel-card .rel-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rel-card h3{font-size:20px;margin:0;}
.rel-card p{font-size:15px;color:var(--text-2);margin:0;flex:1;}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);}
.link-more i{transition:transform .25s var(--ease);font-size:12px;}
.link-more:hover{color:var(--accent);}
.link-more:hover i{transform:translateX(3px);}

/* ============ 收藏 / 分享 CTA ============ */
.cta-band{background:var(--primary);color:#E8E4DB;}
.cta-band .section{padding:72px 0;}
.cta-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:48px;align-items:center;}
.cta-band h2{color:#F6F4EF;margin-bottom:12px;}
.cta-band p{color:#CFC8BC;margin-bottom:24px;max-width:52ch;}
.kv-row{display:flex;flex-wrap:wrap;gap:34px;border-top:1px solid rgba(232,228,219,.25);padding-top:20px;}
.kv-item{display:flex;flex-direction:column;gap:4px;}
.kv-item .kv-key{font-size:12px;letter-spacing:.14em;color:#A9AEA6;text-transform:uppercase;}
.kv-item .kv-val{font-size:17px;font-weight:600;color:#F6F4EF;font-variant-numeric:tabular-nums;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}
.btn-light{background:#F6F4EF;color:var(--primary);border-color:#F6F4EF;}
.btn-light:hover{background:#fff;color:var(--primary-ink);transform:translateY(-1px);}
.btn-outline-light{background:transparent;color:#F6F4EF;border-color:rgba(232,228,219,.5);}
.btn-outline-light:hover{background:rgba(246,244,239,.12);color:#fff;border-color:#F6F4EF;transform:translateY(-1px);}

/* ============ 页脚 ============ */
.site-footer{background:var(--primary);color:#E8E4DB;padding:64px 0 26px;margin-top:0;}
.footer-wave{
  height:1px;margin-bottom:40px;
  background:repeating-linear-gradient(90deg,rgba(232,228,219,.55) 0 6px,transparent 6px 14px);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:44px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#F6F4EF;font-weight:700;font-size:17px;margin-bottom:16px;}
.footer-brand svg{color:#C4622D;}
.site-footer p{color:#B9B5AA;font-size:14.5px;line-height:1.8;max-width:44ch;margin:0;}
.footer-col h3{color:#F6F4EF;font-size:14px;letter-spacing:.1em;margin-bottom:16px;font-family:var(--sans);font-weight:700;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{color:#E8E4DB;font-size:14.5px;}
.footer-col a:hover{color:var(--accent);}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(232,228,219,.2);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#9FA49B;
}
.footer-bottom a{color:#E8E4DB;font-size:13px;}
.footer-bottom a:hover{color:var(--accent);}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

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

/* ============ 响应式 ============ */
@media screen and (max-width:1023px){
  .nav-channels{display:none;}
  .nav-search{display:none;}
  .header-tools .btn-ghost{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{height:64px;gap:16px;}
  .section{padding:64px 0;}
  .section--tight{padding:52px 0;}
  .page-hero{padding:40px 0 56px;}
  .hero-media img{height:300px;}
  .arch{border-radius:130px 130px var(--r-l) var(--r-l);}
  .alt-row + .alt-row{margin-top:56px;}
  .alt-body{padding:24px 0 0;}
  .alt-row--rev .alt-body{padding:24px 0 0;}
  .flow{grid-template-columns:1fr;}
  .rel-grid{grid-template-columns:1fr;}
  .cta-grid{grid-template-columns:1fr;gap:32px;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-grid > div:first-child{grid-column:1 / -1;}
}

@media screen and (max-width:639px){
  body{font-size:15.5px;}
  .section{padding:48px 0;}
  .section--tight{padding:44px 0;}
  .page-hero{padding:32px 0 44px;}
  .page-hero h1{max-width:none;}
  .hero-media img{height:220px;}
  .arch{border-radius:90px 90px var(--r-l) var(--r-l);}
  .stat-bar{gap:22px;}
  .stat-item .stat-num{font-size:19px;}
  .alt-row + .alt-row{margin-top:48px;}
  .alt-body h2{font-size:21px;}
  .faq-acc .accordion-title{padding:0 44px 0 34px;font-size:15px;line-height:1.5;min-height:0;padding-top:20px;padding-bottom:20px;}
  .faq-acc .faq-num{top:26px;transform:none;left:2px;}
  .faq-acc .accordion-content{padding:0 20px 22px 34px;font-size:15px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  table.spec-table th,table.spec-table td{padding:13px 14px;font-size:14px;}
}

/* roulang page: category3 */
:root{
  --paper:#F6F4EF;
  --paper-2:#ECE7DE;
  --card:#FBFAF7;
  --primary:#133B36;
  --primary-ink:#0E2A27;
  --accent:#C4622D;
  --accent-ink:#A94F22;
  --text:#16211F;
  --text-2:#5C6663;
  --line:#E0DAD0;
  --line-2:#CFC7BA;
  --r-s:6px;
  --r-m:10px;
  --r-l:18px;
  --r-arch:170px;
  --shadow-1:0 1px 2px rgba(20,23,26,.04), 0 8px 24px rgba(20,23,26,.06);
  --shadow-2:0 1px 2px rgba(20,23,26,.04), 0 14px 36px rgba(20,23,26,.10);
  --ease:.25s cubic-bezier(.22,.61,.36,1);
  --nav-h:72px;
  --serif:"Noto Serif SC","Songti SC",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:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary);text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease);}
a:hover{color:var(--accent);}
h1,h2,h3,h4{color:var(--primary);margin:0;font-weight:700;}
h1,h2{font-family:var(--serif);letter-spacing:-.02em;}
h1{font-size:clamp(34px,5vw,58px);line-height:1.15;}
h2{font-size:clamp(24px,3vw,34px);line-height:1.25;}
h3{font-size:21px;line-height:1.35;font-family:inherit;}
p{margin:0 0 18px;max-width:68ch;}
ul,ol{margin:0 0 18px;padding-left:1.15em;}
li{margin-bottom:8px;}
button,input{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;}
::selection{background:rgba(196,98,45,.18);}

.grid-container{
  max-width:1240px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
  width:100%;
}
@media (max-width:1024px){.grid-container{padding-left:28px;padding-right:28px;}}
@media (max-width:640px){.grid-container{padding-left:20px;padding-right:20px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  background:rgba(246,244,239,.86);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  display:flex;
  align-items:center;
  gap:28px;
  height:var(--nav-h);
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--primary);
  font-weight:700;
  font-size:17px;
  letter-spacing:-.01em;
  white-space:nowrap;
}
.brand:hover{color:var(--primary);}
.brand svg{color:var(--primary);flex:none;}
.nav-channels{
  display:flex;
  align-items:center;
  gap:26px;
  margin-left:6px;
}
.nav-channels a{
  position:relative;
  font-size:15px;
  color:var(--text-2);
  padding:6px 0;
  white-space:nowrap;
}
.nav-channels a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  background:var(--accent);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--ease);
}
.nav-channels a:hover{color:var(--primary);}
.nav-channels a:hover::after{transform:scaleX(1);}
.nav-channels a.is-active{color:var(--primary);font-weight:600;}
.nav-channels a.is-active::after{transform:scaleX(1);}
.nav-right{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.nav-search{
  display:flex;
  align-items:center;
  gap:8px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:999px;
  padding:0 14px;
  height:40px;
  width:220px;
  transition:width var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.nav-search:focus-within{
  width:280px;
  border-color:var(--primary);
  box-shadow:0 0 0 2px rgba(19,59,54,.12);
}
.nav-search svg{color:var(--text-2);flex:none;}
.nav-search input{
  border:0;
  background:transparent;
  outline:none;
  width:100%;
  height:100%;
  color:var(--text);
  font-size:14px;
}
.nav-search input::placeholder{color:#9AA29F;}
.btn-search-icon{display:none;}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--r-m);
  border:1px solid transparent;
  padding:12px 22px;
  font-weight:600;
  font-size:15px;
  line-height:1;
  cursor:pointer;
  transition:transform var(--ease),background-color var(--ease),border-color var(--ease),color var(--ease),box-shadow var(--ease);
  text-align:center;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent);}
.btn-primary:hover{background:var(--accent-ink);border-color:var(--accent-ink);color:#fff;transform:translateY(-1px);}
.btn-ghost{background:transparent;border-color:var(--line-2);color:var(--text);}
.btn-ghost:hover{border-color:var(--primary);background:var(--paper-2);color:var(--primary);}
.btn-dark{background:var(--primary);color:#F1EEE7;border-color:var(--primary);}
.btn-dark:hover{background:var(--primary-ink);color:#fff;transform:translateY(-1px);}
.btn-sm{padding:9px 16px;font-size:14px;}

.nav-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--line-2);
  border-radius:var(--r-m);
  background:var(--card);
  cursor:pointer;
  align-items:center;
  justify-content:center;
}
.nav-toggle span{
  display:block;width:18px;height:1.6px;background:var(--primary);position:relative;
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:1.6px;background:var(--primary);
}
.nav-toggle span::before{top:-5px;}
.nav-toggle span::after{top:5px;}

.drawer{
  position:fixed;
  top:0;right:0;
  width:300px;height:100%;
  background:var(--paper);
  border-left:1px solid var(--line);
  transform:translateX(100%);
  transition:transform var(--ease);
  z-index:200;
  padding:24px 22px;
  display:flex;
  flex-direction:column;
  gap:22px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-close{background:none;border:1px solid var(--line-2);border-radius:var(--r-m);width:38px;height:38px;cursor:pointer;color:var(--primary);font-size:18px;line-height:1;}
.drawer-links{display:flex;flex-direction:column;gap:2px;}
.drawer-links a{
  padding:13px 4px;
  border-bottom:1px solid var(--line);
  color:var(--text);
  font-size:16px;
}
.drawer-links a.is-active{color:var(--accent);font-weight:600;}
.drawer-search{
  display:flex;align-items:center;gap:8px;
  border:1px solid var(--line);border-radius:999px;
  padding:0 14px;height:44px;background:var(--card);
}
.drawer-search input{border:0;background:transparent;outline:none;width:100%;font-size:14px;}
.drawer .btn{width:100%;}
.scrim{
  position:fixed;inset:0;background:rgba(16,22,21,.42);
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);
  z-index:190;
}
.scrim.is-open{opacity:1;visibility:visible;}

/* ---------- hero ---------- */
.page-hero{padding:64px 0 0;}
.hero-panel{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-arch) var(--r-arch) var(--r-l) var(--r-l);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  display:grid;
  grid-template-columns:7fr 5fr;
  min-height:420px;
}
.hero-copy{padding:56px 48px;display:flex;flex-direction:column;justify-content:center;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  letter-spacing:.18em;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  margin-bottom:20px;
  text-transform:uppercase;
}
.eyebrow::before{
  content:"";
  width:26px;height:1px;background:var(--accent);display:block;
}
.hero-copy h1{margin-bottom:18px;}
.hero-sub{
  font-size:17px;
  color:var(--text-2);
  max-width:44ch;
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;}
.hero-visual{
  position:relative;
  background-image:url("/assets/images/backpic/back-3.png");
  background-size:cover;
  background-position:center;
  border-left:1px solid var(--line);
  min-height:280px;
}
.hero-visual::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(19,59,54,.10),rgba(19,59,54,.34));
}
.hero-note{
  position:absolute;
  left:26px;right:26px;bottom:24px;
  z-index:2;
  color:#F4F1EA;
  font-size:13.5px;
  line-height:1.7;
  border-top:1px solid rgba(244,241,234,.42);
  padding-top:14px;
}
.stats-bar{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-top:0;
  border-radius:0 0 var(--r-l) var(--r-l);
  overflow:hidden;
  margin-top:-1px;
}
.stat{
  background:var(--card);
  padding:20px 24px;
}
.stat b{
  display:block;
  font-size:24px;
  color:var(--primary);
  font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
  line-height:1.3;
}
.stat span{font-size:13px;color:var(--text-2);letter-spacing:.02em;}

/* ---------- sections ---------- */
.section{padding:96px 0 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:32px;
  border-bottom:1px solid var(--line);
  padding-bottom:18px;
}
.section-head p{margin:8px 0 0;color:var(--text-2);font-size:15px;}
.section-head .head-link{font-size:14px;color:var(--accent);white-space:nowrap;}
.section-head .head-link:hover{color:var(--accent-ink);}

/* ---------- timeline ---------- */
.timeline{
  position:relative;
  padding-left:34px;
  margin-top:8px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:7px;top:10px;bottom:10px;
  width:1px;
  background:var(--line-2);
}
.tl-item{position:relative;padding-bottom:56px;}
.tl-item:last-child{padding-bottom:8px;}
.tl-item::before{
  content:"";
  position:absolute;
  left:-34px;top:9px;
  width:15px;height:15px;
  border-radius:50%;
  background:var(--paper);
  border:1px solid var(--line-2);
}
.tl-item.is-current::before{
  background:var(--accent);
  border-color:var(--accent);
  box-shadow:0 0 0 4px rgba(196,98,45,.16);
}
.tl-num{
  font-size:13px;
  letter-spacing:.18em;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  display:block;
  margin-bottom:6px;
}
.tl-item h3{margin-bottom:10px;}
.tl-item p{color:var(--text-2);margin-bottom:14px;}
.tl-points{list-style:none;padding:0;margin:0;display:grid;gap:8px;}
.tl-points li{
  position:relative;
  padding-left:16px;
  margin:0;
  font-size:15px;
  color:var(--text);
}
.tl-points li::before{
  content:"";
  position:absolute;left:0;top:12px;
  width:6px;height:6px;background:var(--accent);border-radius:1px;
}

/* ---------- side card ---------- */
.side-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  padding:24px;
  box-shadow:var(--shadow-1);
}
.sticky-side{position:sticky;top:calc(var(--nav-h) + 24px);}
.side-card h3{font-size:17px;margin-bottom:14px;}
.side-list{list-style:none;padding:0;margin:0;}
.side-list li{margin:0;border-bottom:1px solid var(--line);}
.side-list li:last-child{border-bottom:0;}
.side-list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:13px 2px;
  font-size:14.5px;
  color:var(--text);
}
.side-list a:hover{color:var(--accent);transform:translateX(3px);}
.side-list a span{color:var(--text-2);font-variant-numeric:tabular-nums;font-size:13px;}

/* ---------- cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--line-2);}
.card-figure{
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--paper-2);
}
.card-figure img{width:100%;height:100%;object-fit:cover;transition:transform .7s cubic-bezier(.22,.61,.36,1);}
.card:hover .card-figure img{transform:scale(1.04);}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1;}
.card-meta{display:flex;align-items:center;gap:10px;margin-bottom:12px;}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:999px;background:var(--paper-2);color:var(--text-2);
  font-size:12px;letter-spacing:.02em;white-space:nowrap;
}
.badge-primary{background:rgba(19,59,54,.10);color:var(--primary);}
.card-meta time{font-size:12.5px;color:var(--text-2);font-variant-numeric:tabular-nums;}
.card-body h3{
  font-size:19px;
  margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-body p{
  font-size:14.5px;
  color:var(--text-2);
  margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-link{
  margin-top:auto;
  font-size:14.5px;
  font-weight:600;
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.card-link i{font-style:normal;transition:transform var(--ease);}
.card:hover .card-link{color:var(--accent);}
.card:hover .card-link i{transform:translateX(3px);}

/* ---------- faq ---------- */
.accordion{border:0;background:transparent;}
.accordion .accordion-item{
  border:0;
  border-top:1px solid var(--line);
  background:transparent;
}
.accordion .accordion-item:last-child{border-bottom:1px solid var(--line);}
.accordion .accordion-title{
  display:flex;
  align-items:center;
  gap:16px;
  padding:20px 4px;
  font-size:17px;
  font-weight:600;
  color:var(--text);
  border:0;
  background:transparent;
  transition:color var(--ease),background-color var(--ease);
}
.accordion .accordion-title:hover{color:var(--accent);background:var(--paper-2);}
.accordion .accordion-title .faq-num{
  font-size:12.5px;
  letter-spacing:.18em;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  flex:none;
}
.accordion .accordion-title .faq-sign{
  margin-left:auto;
  flex:none;
  width:22px;height:22px;
  border:1px solid var(--line-2);
  border-radius:50%;
  position:relative;
  transition:transform var(--ease),border-color var(--ease);
}
.accordion .accordion-title .faq-sign::before,
.accordion .accordion-title .faq-sign::after{
  content:"";position:absolute;background:var(--primary);left:50%;top:50%;
  transition:opacity var(--ease),background-color var(--ease);
}
.accordion .accordion-title .faq-sign::before{width:10px;height:1.5px;transform:translate(-50%,-50%);}
.accordion .accordion-title .faq-sign::after{width:1.5px;height:10px;transform:translate(-50%,-50%);}
.accordion .accordion-title[aria-expanded="true"]{color:var(--primary);background:var(--paper-2);}
.accordion .accordion-title[aria-expanded="true"] .faq-sign{transform:rotate(180deg);border-color:var(--accent);}
.accordion .accordion-title[aria-expanded="true"] .faq-sign::after{opacity:0;}
.accordion .accordion-content{
  border:0;
  padding:0 4px 22px 46px;
  color:var(--text-2);
  font-size:15.5px;
  line-height:1.85;
  background:var(--paper-2);
}
.accordion .accordion-content p:last-child{margin-bottom:0;}

/* ---------- contact block ---------- */
.contact-band{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:0;
  border:1px solid var(--line);
  border-radius:var(--r-l);
  overflow:hidden;
  background:var(--card);
  box-shadow:var(--shadow-1);
}
.contact-copy{padding:36px 34px;border-right:1px solid var(--line);}
.contact-copy h3{font-size:22px;margin-bottom:12px;}
.contact-copy p{color:var(--text-2);font-size:15px;margin-bottom:20px;}
.contact-rows{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));}
.contact-row{padding:26px 24px;border-right:1px solid var(--line);}
.contact-row:last-child{border-right:0;}
.contact-row b{
  display:block;font-size:15px;color:var(--primary);margin-bottom:6px;
}
.contact-row span{font-size:13.5px;color:var(--text-2);line-height:1.7;display:block;}

/* ---------- cta band ---------- */
.cta-band{
  margin-top:96px;
  background:var(--primary);
  border-radius:var(--r-l);
  padding:48px 44px;
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:36px;
  align-items:center;
  color:#EFEDE6;
}
.cta-band h2{color:#F7F5EF;margin-bottom:14px;}
.cta-band p{color:rgba(239,237,230,.78);max-width:52ch;margin-bottom:0;}
.cta-kv{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:1px;
  background:rgba(239,237,230,.18);
  border-radius:var(--r-m);
  overflow:hidden;
  margin-bottom:22px;
}
.cta-kv div{background:rgba(255,255,255,.05);padding:14px 16px;}
.cta-kv b{display:block;color:#F7F5EF;font-size:15px;font-variant-numeric:tabular-nums;}
.cta-kv span{font-size:12.5px;color:rgba(239,237,230,.66);}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
.cta-band .btn-ghost{border-color:rgba(239,237,230,.42);color:#EFEDE6;}
.cta-band .btn-ghost:hover{background:rgba(239,237,230,.12);border-color:#EFEDE6;color:#fff;}
.cta-band .btn-primary:hover{color:#fff;}

/* ---------- footer ---------- */
.site-footer{
  margin-top:96px;
  background:var(--primary);
  color:#E8E4DB;
  padding:56px 0 26px;
}
.footer-wave{
  height:1px;
  background:repeating-linear-gradient(90deg,rgba(232,228,219,.42) 0 14px,transparent 14px 26px);
  margin-bottom:44px;
}
.footer-grid{
  display:grid;
  grid-template-columns:5fr 3fr 4fr;
  gap:40px;
}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  color:#F7F5EF;font-weight:700;font-size:17px;margin-bottom:14px;
}
.footer-brand svg{color:#F7F5EF;}
.site-footer p{color:rgba(232,228,219,.72);font-size:14.5px;max-width:40ch;}
.footer-col h3{
  color:#F7F5EF;font-size:14px;letter-spacing:.06em;margin-bottom:16px;font-weight:600;
}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li{margin:0 0 10px;}
.footer-col a{color:#E8E4DB;font-size:14.5px;}
.footer-col a:hover{color:var(--accent);}
.footer-bottom{
  margin-top:44px;
  padding-top:20px;
  border-top:1px solid rgba(232,228,219,.18);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:13.5px;
  color:rgba(232,228,219,.66);
}
.footer-bottom a{color:#E8E4DB;}
.footer-bottom a:hover{color:var(--accent);}

/* ---------- animation ---------- */
.fade-up{opacity:0;transform:translateY(8px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
.fade-up.is-in{opacity:1;transform:none;}
[data-anchor]{scroll-margin-top:96px;}

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

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .nav-channels{display:none;}
  .nav-search{display:none;}
  .btn-search-icon{
    display:inline-flex;align-items:center;justify-content:center;
    width:40px;height:40px;border:1px solid var(--line-2);border-radius:999px;
    background:var(--card);cursor:pointer;color:var(--primary);
  }
  .nav-toggle{display:inline-flex;}
  .hero-panel{grid-template-columns:1fr;}
  .hero-visual{border-left:0;border-top:1px solid var(--line);min-height:240px;}
  .hero-copy{padding:44px 34px;}
  .sticky-side{position:static;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .contact-band{grid-template-columns:1fr;}
  .contact-copy{border-right:0;border-bottom:1px solid var(--line);}
  .cta-band{grid-template-columns:1fr;padding:40px 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .section{padding-top:72px;}
  .cta-band{margin-top:72px;}
  .site-footer{margin-top:72px;}
}
@media (max-width:640px){
  :root{--nav-h:60px;--r-arch:120px;}
  .nav-inner{gap:14px;}
  .brand{font-size:16px;}
  .btn-hide-sm{display:none;}
  .hero-copy{padding:32px 22px;}
  .hero-sub{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .stats-bar{grid-template-columns:1fr;}
  .stat{border-top:1px solid var(--line);}
  .stat:first-child{border-top:0;}
  .card-grid{grid-template-columns:1fr;gap:16px;}
  .section{padding-top:56px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .timeline{padding-left:26px;}
  .tl-item::before{left:-26px;}
  .accordion .accordion-title{font-size:15.5px;gap:10px;padding:18px 2px;}
  .accordion .accordion-content{padding:0 2px 20px 2px;}
  .contact-rows{grid-template-columns:1fr;}
  .contact-row{border-right:0;border-bottom:1px solid var(--line);}
  .contact-row:last-child{border-bottom:0;}
  .contact-copy{padding:28px 22px;}
  .cta-band{padding:32px 22px;margin-top:56px;}
  .cta-kv{grid-template-columns:1fr;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .site-footer{padding-top:44px;margin-top:56px;}
  p{font-size:15.5px;}
}