/* roulang page: index */
:root{
  --ink:#14302B;
  --ink-deep:#0C1F1C;
  --cloud:#4E8C7D;
  --mist:#DDE9E4;
  --ochre:#C4622D;
  --ochre-deep:#A94F22;
  --warm:#F7F5F0;
  --surface:#FFFFFF;
  --line:#E3DFD6;
  --text:#1C1E1C;
  --sub:#5D635E;
  --ok:#2F7D5A;
  --warn:#B4483B;
  --r-btn:6px;
  --r-card:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(20,48,43,.06);
  --sh-2:0 10px 28px -14px rgba(20,48,43,.20);
  --ease:cubic-bezier(.22,1,.36,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
.site-body{
  margin:0;
  background:var(--warm);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{display:block;max-width:100%}
a{color:var(--cloud);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--ink)}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--cloud);outline-offset:2px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media(min-width:1024px){.wrap{padding-left:32px;padding-right:32px}}
.serif{font-family:"Noto Serif SC","Songti SC",STSong,serif;font-weight:600;letter-spacing:-.02em}
.section{padding:60px 0}
@media(min-width:768px){.section{padding:96px 0}}
.section-tight{padding:52px 0}
@media(min-width:768px){.section-tight{padding:72px 0}}
.eyebrow{font-size:13px;line-height:1.6;letter-spacing:.08em;color:var(--cloud);margin:0 0 12px}
.sec-title{
  font-family:"Noto Serif SC","Songti SC",STSong,serif;
  font-weight:600;
  letter-spacing:-.02em;
  font-size:clamp(24px,3vw,36px);
  line-height:1.25;
  color:var(--ink);
  margin:0;
  max-width:16em;
}
.sec-sub{font-size:13px;line-height:1.7;color:var(--sub);margin:10px 0 0;max-width:26em}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:36px}
@media(min-width:768px){.sec-head{margin-bottom:48px}}
.lead-text{font-size:16px;line-height:1.9;color:var(--sub);max-width:34em;margin:0}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,240,.98);
  border-bottom:1px solid transparent;
  transition:background-color .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(247,245,240,.95);
  border-bottom-color:var(--line);
  box-shadow:0 1px 0 rgba(20,48,43,.04);
  backdrop-filter:blur(6px);
}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:16px;height:48px;transition:height .28s var(--ease)}
.site-header.is-scrolled .brand-row{height:32px}
.brand{display:inline-flex;align-items:center;gap:8px;color:var(--ink);text-decoration:none;flex-shrink:0}
.brand:hover{color:var(--ink)}
.brand-mark{width:8px;height:8px;border-radius:2px;background:var(--cloud);flex-shrink:0}
.brand-main{font-family:"Noto Serif SC","Songti SC",STSong,serif;font-size:19px;font-weight:600;letter-spacing:-.01em;line-height:1}
.brand-sub{font-size:12px;color:var(--sub);letter-spacing:.04em;line-height:1}
.brand-tools{display:flex;align-items:center;gap:20px}
.search{display:flex;align-items:center;height:34px;padding:0 4px 0 12px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-btn);transition:border-color .18s var(--ease),box-shadow .18s var(--ease)}
.search:focus-within{border-color:var(--cloud);box-shadow:0 0 0 2px rgba(78,140,125,.28)}
.search-input{border:none;outline:none;background:transparent;font-size:13px;color:var(--text);width:160px;height:100%}
.search-input::placeholder{color:#9AA09B}
.search-btn{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border:none;background:transparent;color:var(--cloud);cursor:pointer;border-radius:4px;transition:background-color .18s var(--ease),color .18s var(--ease)}
.search-btn:hover{background:var(--mist);color:var(--ink)}
.search-btn:active{transform:translateY(1px)}
.hotwords{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--sub)}
.hotwords-label{color:#9AA09B}
.hotwords a{color:var(--sub);text-decoration:none;border-bottom:1px solid transparent;transition:color .18s var(--ease),border-color .18s var(--ease)}
.hotwords a:hover{color:var(--cloud);border-bottom-color:var(--cloud)}
.channel-bar{display:flex;align-items:center;gap:30px;height:44px;overflow-x:auto;scrollbar-width:none;transition:height .28s var(--ease)}
.channel-bar::-webkit-scrollbar{display:none}
.site-header.is-scrolled .channel-bar{height:26px}
.channel-link{position:relative;display:inline-flex;align-items:center;height:100%;font-size:15px;color:var(--text);white-space:nowrap;text-decoration:none;transition:color .18s var(--ease)}
.channel-link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--cloud);transform:scaleX(0);transform-origin:left;transition:transform .18s var(--ease)}
.channel-link:hover{color:var(--cloud)}
.channel-link:hover::after{transform:scaleX(1)}
.channel-link.is-active{color:var(--ink);font-weight:600}
.channel-link.is-active::after{transform:scaleX(1)}
.menu-toggle{display:none;align-items:center;justify-content:center;flex-direction:column;gap:5px;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);background:var(--surface);cursor:pointer;transition:border-color .18s var(--ease),background-color .18s var(--ease)}
.menu-toggle:hover{border-color:var(--cloud);background:var(--mist)}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;z-index:80;
  background:var(--mist);
  padding:20px 20px 32px;
  display:flex;flex-direction:column;gap:22px;
  overflow-y:auto;
  transform:translateY(-100%);
  visibility:hidden;
  transition:transform .28s var(--ease),visibility .28s var(--ease);
}
.drawer.is-open{transform:translateY(0);visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px}
.drawer-close{width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;border:1px solid rgba(20,48,43,.18);border-radius:var(--r-btn);background:transparent;color:var(--ink);font-size:20px;cursor:pointer;transition:background-color .18s var(--ease),border-color .18s var(--ease)}
.drawer-close:hover{background:#fff;border-color:var(--cloud)}
.drawer .search{width:100%;height:44px;padding-left:14px}
.drawer .search-input{width:100%;font-size:15px}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{display:flex;align-items:center;min-height:48px;font-size:18px;color:var(--ink);text-decoration:none;border-bottom:1px solid rgba(20,48,43,.12);transition:color .18s var(--ease),padding-left .18s var(--ease)}
.drawer-nav a:hover,.drawer-nav a:active{color:var(--cloud);padding-left:6px}
.drawer-foot{font-size:13px;line-height:1.8;color:var(--sub)}

/* Hero */
.hero{
  position:relative;
  padding:56px 0 64px;
  background-image:linear-gradient(to right,rgba(20,48,43,.04) 1px,transparent 1px),linear-gradient(to bottom,rgba(20,48,43,.04) 1px,transparent 1px);
  background-size:24px 24px;
  border-bottom:1px solid var(--line);
}
@media(min-width:768px){.hero{padding:80px 0 96px}}
.hero-title{
  font-family:"Noto Serif SC","Songti SC",STSong,serif;
  font-weight:600;
  letter-spacing:-.02em;
  font-size:clamp(30px,4.4vw,52px);
  line-height:1.15;
  color:var(--ink);
  margin:0;
  max-width:14em;
}
.hero-title em{font-style:normal;color:var(--cloud)}
.hero-sub{font-size:16px;line-height:1.85;color:var(--sub);margin:20px 0 0;max-width:32em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-anchors{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.anchor-tag{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;background:var(--surface);border:1px solid var(--line);color:var(--sub);font-size:13px;text-decoration:none;transition:border-color .18s var(--ease),color .18s var(--ease),background-color .18s var(--ease)}
.anchor-tag:hover{color:var(--ink);border-color:var(--cloud);background:var(--mist)}
.anchor-tag:active{transform:translateY(1px)}
.hero-figure{position:relative;margin:0;border-radius:var(--r-img);overflow:hidden;background:var(--mist);aspect-ratio:16/10;box-shadow:var(--sh-1)}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.hero-figure::after{content:"";position:absolute;inset:0;background:rgba(20,48,43,.08);pointer-events:none}
.hero-badge{position:absolute;left:16px;bottom:16px;z-index:2;display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:999px;background:rgba(247,245,240,.94);color:var(--ink);font-size:13px;line-height:1.5}
.hero-badge i{display:block;width:6px;height:6px;border-radius:50%;background:var(--ochre)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:10px 24px;
  border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:500;line-height:1.4;
  text-decoration:none;cursor:pointer;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .28s var(--ease),box-shadow .28s var(--ease),opacity .18s var(--ease);
}
.btn-primary{background:var(--ochre);color:#fff}
.btn-primary:hover{background:var(--ochre-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-primary:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.btn-ghost{background:transparent;color:var(--ink);border-color:rgba(20,48,43,.5)}
.btn-ghost:hover{background:var(--mist);color:var(--ink-deep);border-color:var(--cloud)}
.btn-ghost:active{transform:translateY(1px)}
.btn-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}
.btn-light:active{transform:translateY(1px)}
.text-link{position:relative;display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--cloud);text-decoration:none}
.text-link::after{content:"";position:absolute;left:0;bottom:-3px;width:0;height:1px;background:currentColor;transition:width .18s var(--ease)}
.text-link:hover{color:var(--ink)}
.text-link:hover::after{width:100%}
.chip{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;background:var(--mist);color:#2C5D51;font-size:13px;line-height:1.6;white-space:nowrap}
.chip-sm{padding:2px 10px;font-size:12px}
.chip-outline{background:transparent;border:1px solid var(--line);color:var(--sub)}

/* 三步 */
.steps{display:grid;gap:28px}
@media(min-width:768px){.steps{grid-template-columns:repeat(3,1fr);gap:0}}
.step{position:relative;padding:0}
@media(min-width:768px){
  .step{padding:0 32px}
  .step:first-child{padding-left:0}
  .step:last-child{padding-right:0}
  .step + .step{border-left:1px solid var(--line)}
}
@media(max-width:767px){
  .step{border-top:1px solid var(--line);padding-top:20px}
  .step:first-child{border-top:none;padding-top:0}
}
.step-num{
  font-family:"Noto Serif SC","Songti SC",STSong,serif;
  font-size:48px;line-height:1;color:rgba(78,140,125,.9);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.step-title{font-family:"Noto Serif SC","Songti SC",STSong,serif;font-size:20px;line-height:1.4;color:var(--ink);margin:16px 0 10px;font-weight:600}
.step-text{font-size:15px;line-height:1.85;color:var(--sub);margin:0}

/* 能力条带 */
.split{display:grid;gap:32px;align-items:center}
@media(min-width:900px){
  .split{grid-template-columns:repeat(12,1fr);gap:48px}
  .split-media{grid-column:span 5}
  .split-body{grid-column:span 7}
  .split.is-reverse .split-media{order:2}
  .split.is-reverse .split-body{order:1}
}
.media-43{aspect-ratio:4/3;border-radius:var(--r-img);overflow:hidden;background:var(--mist);box-shadow:var(--sh-1)}
.media-43 img{width:100%;height:100%;object-fit:cover;transition:transform .48s var(--ease)}
.media-43:hover img{transform:scale(1.03)}
.cap-list{list-style:none;margin:24px 0 0;padding:0}
.cap-list li{display:flex;gap:16px;padding:16px 0;border-top:1px solid var(--line)}
.cap-list li:last-child{border-bottom:1px solid var(--line)}
.cap-index{font-family:"Noto Serif SC","Songti SC",STSong,serif;font-size:14px;color:var(--cloud);line-height:1.9;font-variant-numeric:tabular-nums;flex-shrink:0;width:28px}
.cap-title{font-size:16px;font-weight:600;color:var(--ink);margin:0;line-height:1.7}
.cap-desc{font-size:14px;line-height:1.8;color:var(--sub);margin:4px 0 0}

/* 指标 */
.metrics{display:grid;gap:24px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:28px 0;margin-bottom:48px}
@media(min-width:768px){.metrics{grid-template-columns:repeat(3,1fr);gap:0}}
.metric{padding:0}
@media(min-width:768px){.metric{padding:0 28px}.metric:first-child{padding-left:0}.metric + .metric{border-left:1px solid var(--line)}}
@media(max-width:767px){.metric + .metric{border-top:1px solid var(--line);padding-top:16px}}
.metric-num{font-family:"Noto Serif SC","Songti SC",STSong,serif;font-size:40px;line-height:1;color:var(--ink);font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.metric-unit{font-size:14px;color:var(--cloud);margin-left:4px}
.metric-label{font-size:12px;line-height:1.7;color:var(--sub);margin:10px 0 0}

/* 引述 */
.quote{font-family:"Noto Serif SC","Songti SC",STSong,serif;font-size:17px;line-height:1.8;color:var(--ink);margin:0;font-weight:400}
.quote-source{display:inline-flex;align-items:center;gap:8px;margin-top:16px;font-size:13px;color:var(--sub)}
.quote-source::before{content:"";display:block;width:20px;height:1px;background:var(--cloud)}
.chip-group{display:flex;flex-wrap:wrap;gap:10px;margin-top:40px;padding-top:28px;border-top:1px solid var(--line)}

/* 最新信息 */
.latest-lead{display:grid;gap:24px;padding-bottom:28px;border-bottom:1px solid var(--line)}
@media(min-width:900px){.latest-lead{grid-template-columns:5fr 7fr;gap:36px;align-items:center}}
.lead-media{display:block;aspect-ratio:16/9;border-radius:var(--r-img);overflow:hidden;background:var(--mist);box-shadow:var(--sh-1)}
.lead-media img{width:100%;height:100%;object-fit:cover;transition:transform .48s var(--ease)}
.lead-media:hover img{transform:scale(1.03)}
.lead-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:12px}
.meta-time{font-size:13px;color:var(--sub);font-variant-numeric:tabular-nums}
.lead-title{font-family:"Noto Serif SC","Songti SC",STSong,serif;font-size:22px;line-height:1.45;margin:0 0 12px;font-weight:600}
.lead-title a{color:var(--ink);text-decoration:none;transition:color .18s var(--ease)}
.lead-title a:hover{color:var(--cloud)}
.lead-desc{font-size:15px;line-height:1.85;color:var(--sub);margin:0 0 18px}
.latest-rows{margin-top:8px}
.latest-row{
  position:relative;display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:18px 0 18px 16px;border-bottom:1px solid var(--line);text-decoration:none;color:inherit;
  transition:background-color .18s var(--ease);
}
.latest-row::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:2px;background:var(--cloud);
  transform:scaleY(0);transform-origin:top;transition:transform .18s var(--ease);
}
.latest-row:hover::before{transform:scaleY(1)}
.latest-row:active{background:rgba(221,233,228,.4)}
.latest-title{font-size:16px;line-height:1.6;font-weight:600;color:var(--ink);margin:0;transition:color .18s var(--ease)}
.latest-row:hover .latest-title{color:var(--cloud)}
.latest-desc{font-size:14px;line-height:1.75;color:var(--sub);margin:6px 0 0}
.row-main{min-width:0;flex:1}
.row-meta{display:flex;flex-direction:column;align-items:flex-end;gap:6px;flex-shrink:0}
@media(max-width:640px){.latest-row{flex-direction:column;gap:8px}.row-meta{flex-direction:row;align-items:center}}
.clamp-1{display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.latest-empty{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  min-height:180px;max-height:220px;padding:32px 20px;text-align:center;
  border:1px dashed var(--line);border-radius:var(--r-card);background:rgba(255,255,255,.6);
}
.latest-empty svg{width:40px;height:40px;color:var(--cloud);stroke-width:1.4}
.latest-empty p{margin:0;font-size:15px;color:var(--ink)}
.latest-empty span{font-size:13px;color:var(--sub)}

/* FAQ */
.faq-grid{display:grid;gap:28px}
@media(min-width:960px){.faq-grid{grid-template-columns:4fr 8fr;gap:56px;align-items:start}}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-btn{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 0;background:none;border:none;text-align:left;cursor:pointer;
  font-size:17px;font-weight:500;line-height:1.6;color:var(--ink);
  transition:color .18s var(--ease);
}
.faq-btn:hover{color:var(--cloud)}
.faq-btn:active{color:var(--ink-deep)}
.faq-icon{position:relative;width:20px;height:20px;flex-shrink:0;color:var(--cloud)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:1px;transform:translate(-50%,-50%);transition:transform .28s var(--ease),opacity .28s var(--ease)}
.faq-icon::before{width:14px;height:2px}
.faq-icon::after{width:2px;height:14px}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-panel{max-height:0;overflow:hidden;transition:max-height .28s var(--ease)}
.faq-panel-inner{padding:0 40px 20px 0;font-size:15px;line-height:1.85;color:var(--sub);margin:0}
.faq-item.is-open .faq-btn{color:var(--ink);font-weight:600}

/* CTA */
.cta{
  position:relative;background:var(--ink);color:#fff;padding:56px 0;overflow:hidden;
}
@media(min-width:768px){.cta{padding:96px 0}}
.cta::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.06) 0 1px,transparent 1px 26px);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:1;display:grid;gap:28px;align-items:center}
@media(min-width:900px){.cta-inner{grid-template-columns:1.4fr 1fr;gap:48px}}
.cta-title{font-family:"Noto Serif SC","Songti SC",STSong,serif;font-size:clamp(24px,3vw,34px);line-height:1.3;color:#fff;margin:0;letter-spacing:-.02em;max-width:12em}
.cta-sub{font-size:15px;line-height:1.85;color:rgba(255,255,255,.78);margin:14px 0 0;max-width:28em}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
@media(min-width:900px){.cta-actions{justify-content:flex-end}}

/* 页脚 */
.site-footer{background:var(--warm);border-top:1px solid var(--line);padding:56px 0 24px}
.footer-grid{display:grid;gap:32px}
@media(min-width:768px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}}
.footer-title{font-size:13px;letter-spacing:.08em;color:#9AA09B;margin:0 0 14px}
.footer-desc{font-size:14px;line-height:1.85;color:var(--sub);margin:14px 0 0;max-width:22em}
.footer-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-list a{font-size:14px;color:var(--text);text-decoration:none;transition:color .18s var(--ease),padding-left .18s var(--ease);display:inline-block}
.footer-list a:hover{color:var(--cloud);padding-left:4px}
.footer-list a:active{color:var(--ink)}
.footer-info{font-size:14px;line-height:1.9;color:var(--sub);margin:0}
.footer-info strong{color:var(--ink);font-weight:600}
.footer-bottom{margin-top:40px;padding-top:20px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;font-size:12px;line-height:1.8;color:var(--sub)}
.footer-bottom a{color:var(--sub);text-decoration:none}
.footer-bottom a:hover{color:var(--cloud)}

/* 入场 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .48s var(--ease),transform .48s var(--ease)}
.reveal.is-visible{opacity:1;transform:translateY(0)}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  *{animation-duration:.001ms!important;transition-duration:.001ms!important}
}

/* 响应式 */
@media(max-width:1023px){
  .hotwords{display:none}
  .search{display:none}
  .channel-bar{display:none}
  .menu-toggle{display:inline-flex}
  .hero{padding:44px 0 56px}
  .hero-figure{margin-top:8px}
}
@media(max-width:767px){
  .sec-head{margin-bottom:28px}
  .brand-main{font-size:17px}
  .hero-actions .btn{width:100%}
  .cta-actions .btn{width:100%}
  .footer-bottom{flex-direction:column}
}

/* roulang page: article */
:root{
  --ink:#14302B;
  --ink-deep:#0C1F1C;
  --cyan:#4E8C7D;
  --mist:#DDE9E4;
  --ochre:#C4622D;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --line:#E3DFD6;
  --text:#1C1E1C;
  --muted:#5D635E;
  --success:#2F7D5A;
  --warn:#B4483B;
  --r-btn:6px;
  --r-card:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(20,48,43,.06);
  --sh-2:0 10px 28px -14px rgba(20,48,43,.20);
  --ease:cubic-bezier(.22,1,.36,1);
  --serif:'Noto Serif SC','Songti SC','SimSun',serif;
  --sans:'PingFang SC','Microsoft YaHei','Noto Sans SC',system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--sans);font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color 180ms var(--ease)}
button{font-family:inherit;cursor:pointer;border:0;background:none}
input,textarea,select{font-family:inherit;font-size:14px;color:var(--text)}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.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}

/* ===== 头部 ===== */
.site-header{position:sticky;top:0;z-index:80;background:rgba(247,245,240,.95);backdrop-filter:saturate(140%) blur(10px);border-bottom:1px solid var(--line);transition:box-shadow 180ms var(--ease)}
.site-header.is-compact{box-shadow:0 6px 20px -18px rgba(20,48,43,.45)}
.brand-row{display:flex;align-items:center}
.brand-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:48px;transition:height 220ms var(--ease)}
.site-header.is-compact .brand-inner{height:32px}
.brand{display:inline-flex;align-items:center;gap:10px;min-height:36px}
.brand-mark{width:8px;height:8px;border-radius:2px;background:var(--cyan);flex:none}
.brand-text{display:inline-flex;align-items:baseline;gap:6px}
.brand-main{font-family:var(--serif);font-size:19px;font-weight:600;letter-spacing:-.01em;color:var(--ink)}
.brand-sub{font-size:12px;letter-spacing:.04em;color:var(--muted);transition:color 180ms var(--ease)}
.brand:hover .brand-sub{color:var(--cyan)}
.search-area{display:flex;align-items:center;gap:18px;flex:1;justify-content:flex-end}
.search-box{display:flex;align-items:center;gap:8px;width:220px;height:36px;padding:0 10px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-btn);transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease)}
.search-box i{font-size:12px;color:var(--muted)}
.search-box input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:13px}
.search-box input::placeholder{color:#9AA39D}
.search-box:focus-within{border-color:var(--cyan);box-shadow:0 0 0 2px rgba(78,140,125,.16)}
.search-box .search-btn{font-size:12px;color:var(--ink);padding:4px 6px;border-radius:4px;transition:background 180ms var(--ease),color 180ms var(--ease)}
.search-box .search-btn:hover{background:var(--mist);color:var(--cyan)}
.hot-words{display:flex;align-items:center;gap:12px;font-size:12px;color:var(--muted);white-space:nowrap}
.hot-label{color:#9AA39D}
.hot-words a{padding-bottom:1px;border-bottom:1px solid transparent;transition:color 180ms var(--ease),border-color 180ms var(--ease)}
.hot-words a:hover{color:var(--cyan);border-bottom-color:var(--cyan)}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);background:var(--surface);align-items:center;justify-content:center;flex-direction:column;gap:4px;transition:border-color 180ms var(--ease)}
.nav-toggle:hover{border-color:var(--cyan)}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:1px;background:var(--ink);transition:transform 220ms var(--ease),opacity 180ms var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(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(-6px) rotate(-45deg)}

.channel-bar{display:flex;align-items:stretch;gap:26px;height:44px;max-width:1200px;margin:0 auto;padding:0 32px;overflow-x:auto;scrollbar-width:none}
.channel-bar::-webkit-scrollbar{display:none}
.channel-link{position:relative;display:inline-flex;align-items:center;font-size:15px;color:var(--ink);opacity:.82;white-space:nowrap;transition:opacity 180ms var(--ease),color 180ms var(--ease)}
.channel-link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--cyan);transform:scaleX(0);transform-origin:left;transition:transform 180ms var(--ease)}
.channel-link:hover{opacity:1}
.channel-link:hover::after{transform:scaleX(1)}
.channel-link.is-active{opacity:1;font-weight:600}
.channel-link.is-active::after{transform:scaleX(1)}
.channel-link:active{transform:translateY(1px)}

/* ===== 移动抽屉 ===== */
.mobile-drawer{position:fixed;inset:0;z-index:90;display:none;background:var(--mist);padding:20px 20px 32px;overflow-y:auto}
.mobile-drawer.is-open{display:block}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{width:44px;height:44px;border:1px solid rgba(20,48,43,.15);border-radius:var(--r-btn);background:var(--surface);color:var(--ink);font-size:16px}
.drawer-close:hover{border-color:var(--cyan);color:var(--cyan)}
.drawer-title{font-size:13px;letter-spacing:.12em;color:var(--muted);margin:24px 0 10px}
.drawer-nav{display:grid;gap:4px}
.drawer-nav a{display:flex;align-items:center;min-height:44px;font-size:18px;color:var(--ink);padding:0 4px;border-bottom:1px solid rgba(20,48,43,.08)}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--cyan)}
.drawer-search{display:flex;align-items:center;gap:8px;height:44px;padding:0 12px;background:var(--surface);border:1px solid rgba(20,48,43,.14);border-radius:var(--r-btn)}
.drawer-search input{flex:1;min-width:0;border:0;background:transparent;outline:none}
.drawer-contact{font-size:13px;color:var(--muted);line-height:1.9;margin-top:24px}

/* ===== 面包屑 ===== */
.crumb-bar{padding:20px 0 0}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--cyan);text-decoration:underline;text-underline-offset:3px}
.breadcrumb .sep{color:#B8BDB8}
.breadcrumb .crumb-current{color:var(--ink);max-width:22em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ===== 文章 ===== */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:56px;align-items:start;padding:8px 0 96px}
.article-layout.no-toc{grid-template-columns:minmax(0,1fr)}
.article-main{max-width:68ch}
.article-head{padding-top:24px}
.chip{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;background:var(--mist);color:var(--cyan);font-size:12px;letter-spacing:.02em}
.article-title{font-family:var(--serif);font-size:clamp(28px,3.6vw,44px);line-height:1.24;font-weight:600;letter-spacing:-.02em;color:var(--ink);margin:16px 0 20px;max-width:20em}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--muted);padding-bottom:22px;border-bottom:1px solid var(--line);font-variant-numeric:tabular-nums}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:#C2C7C2}
.article-meta strong{font-weight:500;color:var(--ink)}

.article-body{font-size:16px;line-height:1.9;color:var(--text);padding-top:32px;max-width:68ch}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 20px}
.article-body h2{position:relative;font-family:var(--serif);font-size:clamp(22px,2.4vw,28px);line-height:1.4;font-weight:600;color:var(--ink);margin:44px 0 18px;padding-left:16px;letter-spacing:-.01em}
.article-body h2::before{content:"";position:absolute;left:0;top:.42em;width:4px;height:20px;border-radius:2px;background:var(--cyan)}
.article-body h3{font-size:20px;line-height:1.45;font-weight:600;color:var(--ink);margin:32px 0 14px}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px}
.article-body li{margin-bottom:8px}
.article-body li::marker{color:var(--cyan)}
.article-body blockquote{margin:28px 0;padding:16px 22px;background:var(--mist);border-left:3px solid var(--cyan);border-radius:0 var(--r-card) var(--r-card) 0;color:var(--ink)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--ink-deep)}
.article-body img{border-radius:var(--r-img);margin:28px auto;box-shadow:var(--sh-1)}
.article-body figure{margin:28px 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}
.article-body strong{color:var(--ink);font-weight:600}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:24px 0}
.article-body th,.article-body td{border-bottom:1px solid var(--line);padding:12px 10px;text-align:left}
.article-body th{background:var(--mist);color:var(--ink);font-weight:600}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}

.article-empty{padding:56px 0 32px;text-align:center;max-width:520px;margin:0 auto}
.article-empty i{font-size:40px;color:var(--cyan);display:block;margin-bottom:18px}
.article-empty h2{font-family:var(--serif);font-size:24px;color:var(--ink);margin:0 0 12px}
.article-empty p{font-size:15px;color:var(--muted);margin:0 0 24px}

/* 目录 */
.article-toc{position:sticky;top:112px;padding-left:20px;border-left:1px solid var(--line)}
.toc-title{font-size:12px;letter-spacing:.12em;color:var(--muted);margin:0 0 14px}
.article-toc ol{list-style:none;margin:0;padding:0}
.article-toc li{margin-bottom:12px;font-size:14px;line-height:1.55;font-variant-numeric:tabular-nums}
.article-toc a{display:block;color:var(--muted);padding-left:2px;border-left:2px solid transparent;transition:color 180ms var(--ease),border-color 180ms var(--ease),padding-left 180ms var(--ease)}
.article-toc a:hover{color:var(--cyan);border-left-color:var(--cyan);padding-left:8px}

/* 相关推荐 */
.related{padding:0 0 88px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;padding-bottom:18px;border-bottom:1px solid var(--line);margin-bottom:32px}
.section-head h2{font-family:var(--serif);font-size:clamp(22px,2.4vw,28px);font-weight:600;color:var(--ink);margin:0;letter-spacing:-.01em}
.text-link{position:relative;font-size:13px;color:var(--cyan);display:inline-flex;align-items:center;gap:6px;padding-bottom:2px}
.text-link::after{content:"";position:absolute;left:0;bottom:0;height:1px;width:0;background:var(--cyan);transition:width 180ms var(--ease)}
.text-link:hover::after{width:100%}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rel-card{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform 280ms var(--ease),box-shadow 280ms var(--ease),border-color 180ms var(--ease)}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(78,140,125,.42)}
.rel-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--mist)}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 480ms var(--ease)}
.rel-card:hover .rel-thumb img{transform:scale(1.03)}
.rel-body{padding:18px 20px 22px}
.rel-cat{font-size:12px;color:var(--cyan);letter-spacing:.04em}
.rel-title{font-family:var(--serif);font-size:18px;line-height:1.45;font-weight:600;color:var(--ink);margin:8px 0 8px;transition:color 180ms var(--ease)}
.rel-card:hover .rel-title{color:var(--cyan)}
.rel-desc{font-size:14px;color:var(--muted);line-height:1.7;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* 返回频道 */
.back-band{background:var(--mist);border-top:1px solid rgba(20,48,43,.08);border-bottom:1px solid rgba(20,48,43,.08)}
.back-band-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;padding:32px 0}
.back-band h2{font-family:var(--serif);font-size:22px;color:var(--ink);margin:0;font-weight:600}
.back-band p{margin:6px 0 0;font-size:14px;color:var(--muted)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 24px;border-radius:var(--r-btn);font-size:15px;font-weight:500;transition:background 180ms var(--ease),color 180ms var(--ease),border-color 180ms var(--ease),transform 180ms var(--ease),box-shadow 180ms var(--ease);white-space:nowrap}
.btn-primary{background:var(--ochre);color:#fff;box-shadow:0 6px 16px -12px rgba(196,98,45,.85)}
.btn-primary:hover{background:#A8501F;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{border:1px solid var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-ghost:active{transform:translateY(1px)}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}

/* ===== 页脚 ===== */
.site-footer{background:var(--bg);border-top:1px solid var(--line);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px}
.footer-desc{font-size:14px;color:var(--muted);line-height:1.8;margin:16px 0 0;max-width:32ch}
.footer-title{font-size:14px;font-weight:600;color:var(--ink);margin:0 0 16px}
.footer-list{list-style:none;margin:0;padding:0;display:grid;gap:10px;font-size:14px}
.footer-list a{color:var(--muted)}
.footer-list a:hover{color:var(--cyan)}
.footer-info{font-size:14px;color:var(--muted);line-height:1.95;margin:0}
.footer-info strong{color:var(--ink);font-weight:600}
.footer-bottom{margin-top:48px;border-top:1px solid var(--line);padding:20px 0;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:12px;color:var(--muted)}
.footer-bottom a{color:var(--muted);text-decoration:underline;text-underline-offset:2px}
.footer-bottom a:hover{color:var(--cyan)}

/* 入场 */
.js .reveal{opacity:0;transform:translateY(12px)}
.reveal{transition:opacity 480ms var(--ease),transform 480ms var(--ease)}
.reveal.is-visible{opacity:1;transform:none}

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

/* ===== 响应式 ===== */
@media (max-width:1023px){
  .search-area .hot-words{display:none}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0}
  .article-toc{position:static;margin-top:40px;padding:20px 0 0;border-left:0;border-top:1px solid var(--line)}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:900px){
  .channel-bar{display:none}
  .nav-toggle{display:inline-flex}
  .search-area .search-box{display:none}
  .site-header.is-compact .brand-inner{height:48px}
  .brand-row{height:56px}
  .brand-inner{height:56px}
  .brand-main{font-size:18px}
}
@media (max-width:767px){
  .wrap{padding:0 20px}
  .channel-bar{padding:0 20px}
  .article-layout{padding-bottom:64px}
  .article-main{max-width:none}
  .rel-grid{grid-template-columns:minmax(0,1fr)}
  .related{padding-bottom:56px}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
  .back-band-inner{padding:28px 0}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column}
  .site-footer{padding-top:48px}
}
@media (max-width:520px){
  .article-title{font-size:26px}
  .article-meta{font-size:12px;gap:10px}
  .article-body{font-size:15.5px}
  .btn{width:100%}
  .back-band-inner{flex-direction:column;align-items:stretch}
}

/* roulang page: category1 */
:root{
    --ink:#14302B;
    --ink-deep:#0C1F1C;
    --cyan:#4E8C7D;
    --mist:#DDE9E4;
    --ochre:#C4622D;
    --ochre-deep:#A9511F;
    --paper:#F7F5F0;
    --surface:#FFFFFF;
    --line:#E3DFD6;
    --text:#1C1E1C;
    --muted:#5D635E;
    --ok:#2F7D5A;
    --warn:#B4483B;
    --r-btn:6px;
    --r-card:10px;
    --r-img:12px;
    --sh-1:0 1px 2px rgba(20,48,43,.06);
    --sh-2:0 10px 28px -14px rgba(20,48,43,.20);
    --ease:cubic-bezier(.22,1,.36,1);
    --font-serif:"Noto Serif SC","Songti SC","Source Han Serif SC",serif;
    --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
    --header-h:92px;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px}
  body{
    margin:0;background:var(--paper);color:var(--text);
    font-family:var(--font-sans);font-size:16px;line-height:1.85;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;border:0}
  a{color:inherit;text-decoration:none}
  button,input,textarea,select{font:inherit;color:inherit}
  ul,ol{margin:0;padding:0;list-style:none}
  h1,h2,h3,h4{margin:0;font-family:var(--font-serif);font-weight:600;color:var(--ink);letter-spacing:-.01em}
  h1{font-size:clamp(32px,4.2vw,48px);line-height:1.15;letter-spacing:-.02em}
  h2{font-size:clamp(24px,3vw,34px);line-height:1.25}
  h3{font-size:20px;line-height:1.4}
  p{margin:0}
  time,.num{font-variant-numeric:tabular-nums}
  a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:4px}
  .wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
  .section{padding:96px 0}
  .section-tight{padding:64px 0}
  .section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .eyebrow{font-size:13px;letter-spacing:.12em;color:var(--cyan);text-transform:uppercase;font-weight:600}
  .muted{color:var(--muted)}

  /* ============ 页头 ============ */
  .site-header{
    position:sticky;top:0;z-index:70;
    background:rgba(247,245,240,.95);
    -webkit-backdrop-filter:blur(8px);
    backdrop-filter:blur(8px);
    border-bottom:1px solid var(--line);
    transition:box-shadow .28s var(--ease);
  }
  .site-header.is-compact{box-shadow:0 6px 18px -16px rgba(20,48,43,.5)}
  .brand-row{
    height:48px;display:flex;align-items:center;overflow:hidden;
    transition:height .28s var(--ease),opacity .28s var(--ease);
  }
  .brand-row-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;width:100%;height:100%}
  .site-header.is-compact .brand-row{height:0;opacity:0}
  .brand{display:inline-flex;align-items:center;gap:8px;flex:none}
  .brand-mark{width:8px;height:8px;background:var(--cyan);border-radius:2px;flex:none}
  .brand-text{display:inline-flex;align-items:baseline;gap:6px;letter-spacing:-.01em;font-family:var(--font-serif)}
  .brand-main{font-size:20px;font-weight:600;color:var(--ink)}
  .brand-sub{font-size:13px;font-weight:600;color:var(--cyan)}
  .brand-tools{display:flex;align-items:center;gap:20px;min-width:0}
  .search-box{
    display:flex;align-items:center;gap:8px;width:220px;height:32px;padding:0 12px;
    background:var(--surface);border:1px solid var(--line);border-radius:999px;
    transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
  }
  .search-box:focus-within{border-color:var(--cyan);box-shadow:0 0 0 2px rgba(78,140,125,.22)}
  .search-box i{font-size:12px;color:var(--muted)}
  .search-box input{border:0;background:transparent;width:100%;font-size:13px;outline:none;min-width:0}
  .search-box input::placeholder{color:#9aa39d}
  .hot-words{display:flex;align-items:center;gap:12px;font-size:13px;white-space:nowrap}
  .hot-label{color:var(--muted)}
  .hot-words a{color:var(--cyan);transition:color .18s var(--ease)}
  .hot-words a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:4px}
  .menu-toggle{
    display:none;align-items:center;justify-content:center;width:44px;height:44px;
    border:1px solid var(--line);border-radius:var(--r-btn);background:var(--surface);
    color:var(--ink);cursor:pointer;transition:border-color .18s var(--ease),background-color .18s var(--ease);
  }
  .menu-toggle:hover{border-color:var(--cyan);background:var(--mist)}
  .channel-row{height:44px;display:flex;align-items:center;transition:height .28s var(--ease)}
  .site-header.is-compact .channel-row{height:56px}
  .channel-bar{
    display:flex;align-items:stretch;gap:28px;height:44px;
    overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
  }
  .channel-bar::-webkit-scrollbar{display:none}
  .channel-link{
    position:relative;display:inline-flex;align-items:center;
    font-size:15px;color:var(--muted);white-space:nowrap;
    transition:color .18s var(--ease);
  }
  .channel-link::after{
    content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--cyan);
    transform:scaleX(0);transform-origin:left;transition:transform .18s var(--ease);
  }
  .channel-link:hover{color:var(--ink)}
  .channel-link:hover::after{transform:scaleX(1)}
  .channel-link.is-active{color:var(--ink);font-weight:600}
  .channel-link.is-active::after{transform:scaleX(1)}

  /* ============ 移动抽屉 ============ */
  .drawer{
    position:fixed;inset:0;z-index:90;background:var(--mist);
    display:flex;flex-direction:column;padding:20px 20px 32px;overflow-y:auto;
    transform:translateX(100%);transition:transform .28s var(--ease);
  }
  .drawer.is-open{transform:translateX(0)}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid rgba(20,48,43,.14)}
  .drawer-close{
    width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
    border:1px solid rgba(20,48,43,.2);border-radius:var(--r-btn);background:transparent;color:var(--ink);cursor:pointer;
  }
  .drawer-close:hover{background:rgba(255,255,255,.6)}
  .drawer-search{
    display:flex;align-items:center;gap:8px;height:44px;margin-top:16px;padding:0 14px;
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-btn);
  }
  .drawer-search:focus-within{border-color:var(--cyan)}
  .drawer-search input{border:0;background:transparent;width:100%;outline:none;font-size:15px}
  .drawer-nav{margin-top:20px;display:flex;flex-direction:column}
  .drawer-nav a{
    display:flex;align-items:center;min-height:48px;font-size:18px;color:var(--ink);
    border-bottom:1px solid rgba(20,48,43,.12);
  }
  .drawer-nav a.is-active{color:var(--cyan);font-weight:600}
  .drawer-foot{margin-top:auto;padding-top:24px;font-size:13px;color:var(--muted);line-height:1.9}
  @media (min-width:901px){.drawer{display:none}}

  /* ============ 按钮 / 标签 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:44px;padding:0 22px;border-radius:var(--r-btn);
    font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
    transition:background-color .18s var(--ease),color .18s var(--ease),
               border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
  }
  .btn-primary{background:var(--ochre);color:#fff}
  .btn-primary:hover{background:var(--ochre-deep);transform:translateY(-1px);box-shadow:var(--sh-2)}
  .btn-primary:active{transform:translateY(1px);box-shadow:none}
  .btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
  .btn-ghost:hover{background:rgba(20,48,43,.06);border-color:var(--ink-deep)}
  .btn-ghost:active{transform:translateY(1px)}
  .btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.72)}
  .btn-outline-light:hover{background:rgba(255,255,255,.12);border-color:#fff}
  .btn-outline-light:active{transform:translateY(1px)}
  .btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
  .tag{
    display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
    background:var(--mist);color:var(--ink);font-size:12px;letter-spacing:.02em;white-space:nowrap;
  }
  .tag-cyan{background:rgba(78,140,125,.14);color:#2F6459}
  .chip-row{display:flex;flex-wrap:wrap;gap:10px}
  .chip{
    display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 14px;border-radius:999px;
    background:var(--surface);border:1px solid var(--line);font-size:13px;color:var(--ink);
  }
  .chip::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);flex:none}
  .link-arrow{
    display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--cyan);
    position:relative;padding-bottom:2px;transition:color .18s var(--ease);
  }
  .link-arrow::after{
    content:"";position:absolute;left:0;bottom:0;height:1px;width:100%;background:currentColor;
    transform:scaleX(0);transform-origin:left;transition:transform .18s var(--ease);
  }
  .link-arrow:hover{color:var(--ink)}
  .link-arrow:hover::after{transform:scaleX(1)}

  /* ============ 分类页头 ============ */
  .cat-hero{
    position:relative;padding:40px 0 72px;
    background-color:var(--paper);
    background-image:
      linear-gradient(rgba(20,48,43,.04) 1px,transparent 1px),
      linear-gradient(90deg,rgba(20,48,43,.04) 1px,transparent 1px);
    background-size:24px 24px;
  }
  .breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:24px;flex-wrap:wrap}
  .breadcrumb a{transition:color .18s var(--ease)}
  .breadcrumb a:hover{color:var(--cyan)}
  .breadcrumb .sep{color:#b3b8b2}
  .breadcrumb .current{color:var(--ink)}
  .cat-hero-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:56px;align-items:center}
  .cat-hero-text h1{max-width:16em;margin:14px 0 20px}
  .cat-lead{font-size:16px;line-height:1.85;color:var(--muted);max-width:56ch}
  .cat-hero .chip-row{margin-top:24px}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
  .cat-hero-media{
    margin:0;border-radius:var(--r-img);overflow:hidden;background:var(--mist);
    aspect-ratio:16/10;box-shadow:var(--sh-1);position:relative;
  }
  .cat-hero-media img{width:100%;height:100%;object-fit:cover}
  .cat-hero-media::after{
    content:"";position:absolute;inset:0;background:rgba(20,48,43,.08);pointer-events:none;
  }

  /* ============ 筛选条 ============ */
  .filter-bar{
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    padding:14px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  }
  .filter-tabs{display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:none;padding:2px}
  .filter-tabs::-webkit-scrollbar{display:none}
  .filter-tab{
    min-height:36px;padding:0 14px;border-radius:999px;border:1px solid var(--line);
    background:var(--surface);color:var(--muted);font-size:14px;white-space:nowrap;cursor:pointer;
    transition:background-color .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
  }
  .filter-tab:hover{border-color:var(--cyan);color:var(--ink)}
  .filter-tab.is-active{background:var(--mist);border-color:var(--cyan);color:var(--ink);font-weight:600}
  .filter-count{font-size:13px;color:var(--muted);flex:none}

  /* ============ 内容区 ============ */
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:36px}
  .section-head h2{max-width:18em}
  .section-head p{font-size:14px;color:var(--muted);max-width:44ch;margin-top:10px}
  .lead-card{
    display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
    overflow:hidden;box-shadow:var(--sh-1);
    transition:border-color .18s var(--ease),box-shadow .28s var(--ease),transform .28s var(--ease);
  }
  .lead-card:hover{border-color:rgba(78,140,125,.32);box-shadow:var(--sh-2);transform:translateY(-2px)}
  .lead-media{margin:0;background:var(--mist);overflow:hidden;aspect-ratio:16/9;min-height:100%}
  .lead-media img{width:100%;height:100%;object-fit:cover;transition:transform .28s var(--ease)}
  .lead-card:hover .lead-media img{transform:scale(1.03)}
  .lead-body{padding:32px;display:flex;flex-direction:column;justify-content:center;gap:14px}
  .lead-body h3{font-size:clamp(20px,2.2vw,26px);line-height:1.35}
  .lead-body h3 a{transition:color .18s var(--ease)}
  .lead-body h3 a:hover{color:var(--cyan)}
  .lead-body p{font-size:15px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .meta-line{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--muted)}

  .list-rows{margin-top:16px;border-top:1px solid var(--line)}
  .list-row{
    display:grid;grid-template-columns:56px minmax(0,1fr) auto;gap:20px;align-items:center;
    padding:22px 0 22px 16px;border-bottom:1px solid var(--line);position:relative;
    transition:background-color .18s var(--ease);
  }
  .list-row::before{
    content:"";position:absolute;left:0;top:18px;bottom:18px;width:2px;background:var(--cyan);
    transform:scaleY(0);transform-origin:top;transition:transform .18s var(--ease);
  }
  .list-row:hover{background:rgba(221,233,228,.32)}
  .list-row:hover::before{transform:scaleY(1)}
  .row-index{font-family:var(--font-serif);font-size:16px;color:var(--cyan);letter-spacing:.04em;font-variant-numeric:tabular-nums}
  .row-main h3{font-size:17px;line-height:1.5;color:var(--ink);transition:color .18s var(--ease)}
  .list-row:hover .row-main h3{color:var(--cyan)}
  .row-main p{font-size:14px;color:var(--muted);margin-top:6px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
  .row-meta{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--muted);white-space:nowrap;font-variant-numeric:tabular-nums}

  /* ============ 指标带 ============ */
  .stats-band{
    display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
    border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-top:56px;
  }
  .stat{padding:28px 24px 28px 0;border-left:1px solid var(--line)}
  .stat:first-child{border-left:0;padding-left:0}
  .stat:not(:first-child){padding-left:24px}
  .stat-num{font-family:var(--font-serif);font-size:clamp(30px,3.4vw,40px);line-height:1.1;color:var(--ink);font-variant-numeric:tabular-nums}
  .stat-unit{font-size:14px;color:var(--cyan);font-family:var(--font-sans);font-weight:600;margin-left:4px}
  .stat-label{font-size:12px;color:var(--muted);margin-top:8px}

  /* ============ 图文分栏 ============ */
  .split{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,6fr);gap:64px;align-items:center}
  .split-media{margin:0;border-radius:var(--r-img);overflow:hidden;background:var(--mist);aspect-ratio:4/3;box-shadow:var(--sh-1)}
  .split-media img{width:100%;height:100%;object-fit:cover}
  .split-body h2{max-width:16em}
  .split-body > p{font-size:15px;color:var(--muted);margin-top:18px;max-width:52ch}
  .step-list{display:grid;gap:18px;margin-top:28px}
  .step-list li{position:relative;padding-left:48px;font-size:15px;color:var(--muted);line-height:1.8}
  .step-list li strong{color:var(--ink);font-weight:600;display:block;margin-bottom:2px;font-size:15px}
  .step-list li::before{
    counter-increment:step;content:"0" counter(step);
    position:absolute;left:0;top:-2px;font-family:var(--font-serif);
    font-size:20px;color:var(--cyan);letter-spacing:.02em;
  }
  .step-list{counter-reset:step}

  /* ============ FAQ ============ */
  .faq-grid{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:56px;align-items:start}
  .faq-aside h2{max-width:10em}
  .faq-aside p{font-size:13px;color:var(--muted);margin-top:14px;max-width:26ch}
  .faq-list{border-top:1px solid var(--line)}
  .faq-item{border-bottom:1px solid var(--line)}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px 0;min-height:44px;background:none;border:0;text-align:left;
    font-size:17px;font-weight:500;color:var(--ink);cursor:pointer;
    transition:color .18s var(--ease);
  }
  .faq-q:hover{color:var(--cyan)}
  .faq-icon{
    flex:none;width:20px;height:20px;position:relative;color:var(--cyan);
  }
  .faq-icon::before,.faq-icon::after{
    content:"";position:absolute;background:currentColor;border-radius:1px;
    transition:transform .28s var(--ease),opacity .28s var(--ease);
  }
  .faq-icon::before{left:0;right:0;top:9px;height:2px}
  .faq-icon::after{top:0;bottom:0;left:9px;width:2px}
  .faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease)}
  .faq-a-inner{padding:0 0 22px;font-size:15px;line-height:1.85;color:var(--muted);max-width:64ch}

  /* ============ CTA ============ */
  .cta{position:relative;background:var(--ink);color:#fff;padding:96px 0;overflow:hidden}
  .cta-figure{
    position:absolute;inset:0;opacity:.14;pointer-events:none;
    background-image:url('/assets/images/backpic/back-2.webp');
    background-size:cover;background-position:center;
  }
  .cta-lines{
    position:absolute;inset:0;pointer-events:none;opacity:.6;
    background-image:
      repeating-linear-gradient(115deg,rgba(255,255,255,.06) 0 1px,transparent 1px 26px);
  }
  .cta-inner{position:relative;display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:48px;align-items:center}
  .cta h2{color:#fff;max-width:14em}
  .cta p{color:rgba(255,255,255,.76);font-size:15px;margin-top:14px;max-width:32ch}
  .cta-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end}

  /* ============ 页脚 ============ */
  .site-footer{background:var(--paper);border-top:1px solid var(--line);padding:64px 0 24px}
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
  .footer-desc{font-size:13px;color:var(--muted);margin-top:14px;max-width:34ch;line-height:1.85}
  .footer-title{font-family:var(--font-sans);font-size:14px;font-weight:600;color:var(--ink);margin-bottom:16px}
  .footer-list li{margin-bottom:10px;font-size:14px;color:var(--muted)}
  .footer-list a{transition:color .18s var(--ease)}
  .footer-list a:hover{color:var(--cyan)}
  .footer-info{font-size:13px;color:var(--muted);line-height:2}
  .footer-info strong{color:var(--ink);font-weight:600}
  .footer-bottom{
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    margin-top:48px;padding-top:20px;border-top:1px solid var(--line);
    font-size:12px;color:var(--muted);
  }
  .footer-bottom a{transition:color .18s var(--ease)}
  .footer-bottom a:hover{color:var(--cyan)}

  /* ============ 入场 ============ */
  .reveal{opacity:0;transform:translateY(12px)}
  .reveal.is-in{opacity:1;transform:none;transition:opacity .48s var(--ease),transform .48s var(--ease)}

  /* ============ 响应式 ============ */
  @media (max-width:1024px){
    .cat-hero-grid{gap:36px}
    .split{gap:40px}
    .faq-grid{gap:32px}
    .cta-inner{grid-template-columns:1fr;gap:28px}
    .cta-actions{justify-content:flex-start}
    .section{padding:72px 0}
  }
  @media (max-width:900px){
    .search-box,.hot-words{display:none}
    .menu-toggle{display:inline-flex}
    .site-header.is-compact .brand-row{height:48px;opacity:1}
    .site-header.is-compact .channel-row{height:44px}
  }
  @media (max-width:768px){
    .wrap{padding:0 20px}
    .section{padding:56px 0}
    .section-tight{padding:44px 0}
    .cat-hero{padding:24px 0 56px}
    .cat-hero-grid{grid-template-columns:1fr;gap:32px}
    .cat-hero-text h1{margin:12px 0 16px}
    .cat-hero-media{order:-1;aspect-ratio:16/10}
    .lead-card{grid-template-columns:1fr}
    .lead-body{padding:24px}
    .list-row{grid-template-columns:minmax(0,1fr);gap:10px;padding:20px 0 20px 14px}
    .row-meta{flex-wrap:wrap}
    .row-index{display:none}
    .split{grid-template-columns:1fr;gap:28px}
    .faq-grid{grid-template-columns:1fr;gap:24px}
    .faq-aside p{max-width:100%}
    .stats-band{grid-template-columns:1fr;margin-top:40px}
    .stat{border-left:0;border-top:1px solid var(--line);padding:20px 0}
    .stat:first-child{border-top:0}
    .stat:not(:first-child){padding-left:0}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
    .cta{padding:64px 0}
    .section-head{margin-bottom:26px}
  }
  @media (max-width:520px){
    .brand-main{font-size:18px}
    .brand-sub{font-size:12px}
    .footer-grid{grid-template-columns:1fr}
    .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
    .hero-actions .btn{width:100%}
    .filter-count{display:none}
    .lead-body h3{font-size:19px}
  }
  @media (prefers-reduced-motion:reduce){
    *{animation:none!important;transition:none!important}
    .reveal{opacity:1;transform:none}
    html{scroll-behavior:auto}
  }

/* roulang page: category2 */
:root{
    --ink:#14302B;
    --ink-deep:#0C1F1C;
    --cyan:#4E8C7D;
    --mist:#DDE9E4;
    --ochre:#C4622D;
    --ochre-deep:#A94F22;
    --bg:#F7F5F0;
    --card:#FFFFFF;
    --line:#E3DFD6;
    --text:#1C1E1C;
    --sub:#5D635E;
    --ok:#2F7D5A;
    --warn:#B4483B;
    --r-btn:6px;
    --r-card:10px;
    --r-img:12px;
    --sh-1:0 1px 2px rgba(20,48,43,.06);
    --sh-2:0 10px 28px -14px rgba(20,48,43,.20);
    --ease:cubic-bezier(.22,1,.36,1);
    --ff-serif:"Noto Serif SC","Songti SC",serif;
    --ff-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  }

  .page-category{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:var(--ff-sans);
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  .page-category *{box-sizing:border-box;}
  .page-category a{color:inherit;text-decoration:none;}
  .page-category img{display:block;max-width:100%;}
  .page-category button{font-family:inherit;}
  .wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
  @media (max-width:767px){.wrap{padding:0 20px;}}

  /* ============ 吸顶导航 ============ */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(247,245,240,.95);
    -webkit-backdrop-filter:blur(8px);
    backdrop-filter:blur(8px);
    border-bottom:1px solid var(--line);
    transition:box-shadow .28s var(--ease);
  }
  .site-header.is-condensed{box-shadow:0 6px 18px -14px rgba(20,48,43,.35);}
  .header-top{
    display:flex;align-items:center;justify-content:space-between;gap:24px;
    height:48px;transition:height .28s var(--ease);
  }
  .site-header.is-condensed .header-top{height:56px;}
  .brand{display:inline-flex;align-items:center;gap:8px;flex:0 0 auto;}
  .brand-mark{width:8px;height:8px;border-radius:2px;background:var(--cyan);display:inline-block;}
  .brand-text{display:inline-flex;align-items:baseline;gap:4px;font-weight:600;letter-spacing:-.01em;}
  .brand-main{font-family:var(--ff-serif);font-size:20px;color:var(--ink);line-height:1;}
  .brand-sub{font-size:12.5px;color:var(--cyan);letter-spacing:.02em;line-height:1;}
  .header-tools{display:flex;align-items:center;gap:20px;min-width:0;}
  .search{
    display:flex;align-items:center;gap:8px;
    width:220px;height:36px;padding:0 12px;
    background:#fff;border:1px solid var(--line);border-radius:var(--r-btn);
    transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
  }
  .search i{font-size:13px;color:var(--cyan);}
  .search input{
    width:100%;border:0;outline:none;background:transparent;
    font-size:13.5px;color:var(--text);font-family:inherit;
  }
  .search input::placeholder{color:#9AA09B;}
  .search:focus-within{border-color:var(--cyan);box-shadow:0 0 0 2px rgba(78,140,125,.22);}
  .hotwords{display:flex;align-items:center;gap:12px;font-size:13px;}
  .hotword-label{color:#9AA09B;}
  .hotwords a{color:var(--sub);transition:color .18s var(--ease);position:relative;}
  .hotwords a::after{content:"";position:absolute;left:0;right:0;bottom:-3px;height:1px;background:var(--cyan);transform:scaleX(0);transform-origin:left;transition:transform .18s var(--ease);}
  .hotwords a:hover{color:var(--ink);}
  .hotwords a:hover::after{transform:scaleX(1);}
  .menu-toggle{
    display:none;align-items:center;justify-content:center;
    width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
    background:#fff;color:var(--ink);cursor:pointer;
    transition:border-color .18s var(--ease),background-color .18s var(--ease);
  }
  .menu-toggle:hover{border-color:var(--cyan);background:var(--mist);}
  .menu-toggle:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}

  .header-bottom{display:flex;align-items:center;height:44px;border-top:1px solid rgba(227,223,214,.75);transition:opacity .18s var(--ease);}
  .site-header.is-condensed .header-bottom{display:none;}
  .channel-bar{display:flex;align-items:center;gap:28px;height:44px;overflow-x:auto;scrollbar-width:none;}
  .channel-bar::-webkit-scrollbar{display:none;}
  .channel-link{
    position:relative;display:inline-flex;align-items:center;height:44px;
    font-size:15px;color:var(--sub);white-space:nowrap;
    transition:color .18s var(--ease);
  }
  .channel-link::after{
    content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--cyan);
    transform:scaleX(0);transform-origin:left;transition:transform .18s var(--ease);
  }
  .channel-link:hover{color:var(--ink);}
  .channel-link:hover::after{transform:scaleX(1);}
  .channel-link:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:2px;}
  .channel-link.is-active{color:var(--ink);font-weight:600;}
  .channel-link.is-active::after{transform:scaleX(1);}

  /* ============ 移动端抽屉 ============ */
  .drawer{
    position:fixed;inset:0;z-index:90;background:var(--mist);
    transform:translateX(100%);transition:transform .28s var(--ease);
    display:flex;flex-direction:column;padding:20px 20px 32px;overflow-y:auto;
  }
  .drawer.is-open{transform:translateX(0);}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
  .drawer-close{
    width:44px;height:44px;border-radius:var(--r-btn);border:1px solid rgba(20,48,43,.18);
    background:transparent;color:var(--ink);font-size:17px;cursor:pointer;
  }
  .drawer-close:hover{background:rgba(20,48,43,.08);}
  .drawer-search{width:100%;height:44px;margin-bottom:20px;}
  .drawer-nav{display:flex;flex-direction:column;gap:2px;}
  .drawer-nav a{
    padding:12px 4px;font-size:18px;color:var(--ink);border-bottom:1px solid rgba(20,48,43,.12);
  }
  .drawer-nav a.is-active{color:var(--cyan);font-weight:600;}
  .drawer-foot{margin-top:auto;padding-top:28px;font-size:13px;color:#41645A;line-height:1.9;}

  /* ============ 面包屑 ============ */
  .crumb{padding:20px 0 0;font-size:13px;color:var(--sub);}
  .crumb a:hover{color:var(--cyan);}
  .crumb .sep{margin:0 8px;color:#BEB9AC;}
  .crumb .current{color:var(--ink);}

  /* ============ 分类页头 ============ */
  .cat-hero{padding:28px 0 56px;}
  .cat-hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:56px;align-items:center;}
  .cat-kicker{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;color:var(--cyan);letter-spacing:.04em;margin-bottom:16px;
  }
  .cat-kicker::before{content:"";width:20px;height:2px;background:var(--cyan);display:inline-block;}
  h1.cat-title{
    font-family:var(--ff-serif);
    font-size:clamp(30px,4.1vw,48px);
    line-height:1.18;font-weight:600;letter-spacing:-.02em;
    color:var(--ink);margin:0 0 20px;max-width:18em;
  }
  .cat-lead{font-size:15.5px;line-height:1.9;color:var(--sub);max-width:40em;margin:0 0 24px;}
  .chip-row{display:flex;flex-wrap:wrap;gap:10px;}
  .chip{
    display:inline-flex;align-items:center;gap:7px;
    padding:6px 14px;border-radius:999px;
    background:var(--mist);color:#2F6B5E;font-size:13px;line-height:1.6;
    border:1px solid rgba(78,140,125,.16);
  }
  .chip i{font-size:11px;color:var(--cyan);}
  .hero-figure{position:relative;}
  .hero-figure img{
    width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);
    background:var(--mist);box-shadow:var(--sh-1);
  }
  .hero-figure figcaption{
    margin-top:12px;font-size:13px;color:var(--sub);text-align:center;
  }
  .hero-tag{
    position:absolute;left:16px;bottom:16px;
    background:rgba(20,48,43,.86);color:#F1F5F2;
    font-size:12.5px;padding:7px 14px;border-radius:999px;
    letter-spacing:.02em;
  }

  /* ============ 筛选条 ============ */
  .filter-bar{
    display:flex;flex-wrap:wrap;gap:10px;padding:20px 0;
    border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  }
  .filter-link{
    display:inline-flex;align-items:center;min-height:40px;
    padding:0 18px;border-radius:999px;font-size:14px;
    color:var(--sub);background:#fff;border:1px solid var(--line);
    transition:border-color .18s var(--ease),color .18s var(--ease),background-color .18s var(--ease);
  }
  .filter-link:hover{border-color:rgba(78,140,125,.55);color:var(--ink);}
  .filter-link:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}
  .filter-link.is-on{background:var(--ink);border-color:var(--ink);color:#F4F2EC;}

  /* ============ 区块通用 ============ */
  .section{padding:80px 0;}
  .section-tight{padding:64px 0;}
  @media (max-width:767px){.section{padding:52px 0;}.section-tight{padding:44px 0;}}
  .section-head{max-width:680px;margin-bottom:44px;}
  h2.sec-title{
    font-family:var(--ff-serif);font-size:clamp(24px,3vw,32px);line-height:1.3;
    font-weight:600;color:var(--ink);margin:0 0 12px;letter-spacing:-.01em;
  }
  .sec-sub{font-size:15px;color:var(--sub);margin:0;}

  /* ============ 时间线 ============ */
  .timeline{position:relative;margin-top:8px;}
  .timeline::before{
    content:"";position:absolute;left:23px;top:14px;bottom:24px;width:1px;background:var(--line);
  }
  .tl-item{position:relative;padding-left:76px;margin-bottom:28px;}
  .tl-item:last-child{margin-bottom:0;}
  .tl-num{
    position:absolute;left:0;top:4px;width:48px;height:48px;border-radius:50%;
    display:grid;place-items:center;background:var(--bg);border:1px solid var(--line);
    font-family:var(--ff-serif);font-size:17px;color:var(--cyan);
    font-variant-numeric:tabular-nums;transition:border-color .18s var(--ease),background-color .18s var(--ease);
  }
  .tl-item:hover .tl-num{border-color:rgba(78,140,125,.6);background:#fff;}
  .tl-card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    padding:24px 28px;box-shadow:var(--sh-1);
    transition:transform .28s var(--ease),border-color .18s var(--ease),box-shadow .28s var(--ease);
  }
  .tl-card:hover{transform:translateY(-2px);border-color:rgba(78,140,125,.45);box-shadow:var(--sh-2);}
  .tl-meta{
    display:flex;flex-wrap:wrap;align-items:center;gap:12px;
    font-size:12.5px;color:var(--cyan);margin-bottom:8px;
    font-variant-numeric:tabular-nums;letter-spacing:.02em;
  }
  .tl-meta .dot{width:3px;height:3px;border-radius:50%;background:#B9C6C0;}
  .tl-meta .stage{color:#8A9490;}
  h3.tl-title{
    font-family:var(--ff-serif);font-size:20px;line-height:1.4;font-weight:600;
    color:var(--ink);margin:0 0 8px;
  }
  .tl-desc{font-size:15px;color:var(--sub);margin:0;}
  .tl-points{list-style:none;margin:16px 0 0;padding:0;display:grid;gap:8px;}
  .tl-points li{position:relative;padding-left:18px;font-size:14.5px;color:var(--sub);line-height:1.75;}
  .tl-points li::before{
    content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:2px;
    background:var(--cyan);opacity:.72;
  }

  /* ============ 深色数据面板 ============ */
  .hud{
    position:relative;overflow:hidden;
    background:var(--ink);color:#E9EFEC;border-radius:var(--r-img);
    padding:36px 36px 32px;
    background-image:
      linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
    background-size:32px 32px;
  }
  .hud h2{color:#F4F7F5;margin:0 0 8px;}
  .hud .hud-note{color:#A9BCB4;font-size:14px;margin:0 0 28px;max-width:34em;}
  .hud-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
  .hud-stat{border-top:1px solid rgba(244,247,245,.18);padding-top:18px;}
  .hud-num{
    font-family:var(--ff-serif);font-size:38px;line-height:1.1;color:#F1F5F2;
    font-variant-numeric:tabular-nums;display:block;margin-bottom:6px;
  }
  .hud-num small{font-size:15px;color:var(--cyan);margin-left:6px;font-family:var(--ff-sans);}
  .hud-stat p{margin:0;font-size:13px;color:#A9BCB4;line-height:1.7;}

  /* ============ 退回原因面板 ============ */
  .panel{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    padding:28px 30px;box-shadow:var(--sh-1);height:100%;
  }
  .panel-title{
    font-family:var(--ff-serif);font-size:18px;font-weight:600;color:var(--ink);
    margin:0 0 16px;
  }
  .reason-list{list-style:none;margin:0;padding:0;}
  .reason-list li{
    display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line);
  }
  .reason-list li:last-child{border-bottom:0;padding-bottom:0;}
  .reason-list li:first-child{padding-top:0;}
  .reason-idx{
    flex:0 0 auto;font-family:var(--ff-serif);font-size:14px;color:var(--cyan);
    font-variant-numeric:tabular-nums;padding-top:2px;
  }
  .reason-body strong{display:block;font-size:15px;color:var(--ink);font-weight:600;margin-bottom:4px;}
  .reason-body span{font-size:14px;color:var(--sub);line-height:1.75;}

  .check-list{list-style:none;margin:0;padding:0;display:grid;gap:12px;}
  .check-list li{
    display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:var(--sub);line-height:1.75;
  }
  .check-list i{color:var(--cyan);font-size:13px;margin-top:6px;}

  /* ============ FAQ ============ */
  .faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start;}
  .faq-side h2{margin-bottom:12px;}
  .faq-side p{font-size:13.5px;color:var(--sub);margin:0 0 20px;}
  .faq-side a{font-size:14px;color:var(--cyan);display:inline-flex;align-items:center;gap:6px;}
  .faq-side a:hover{text-decoration:underline;}
  .faq-list{border-top:1px solid var(--line);}
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-btn{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
    padding:20px 0;background:transparent;border:0;cursor:pointer;text-align:left;
    font-size:17px;font-weight:500;color:var(--ink);line-height:1.5;
    transition:color .18s var(--ease);
  }
  .faq-btn:hover{color:var(--cyan);}
  .faq-btn:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:4px;}
  .faq-sign{
    flex:0 0 auto;width:20px;height:20px;position:relative;color:var(--cyan);
  }
  .faq-sign::before,.faq-sign::after{
    content:"";position:absolute;background:currentColor;border-radius:1px;
    transition:transform .28s var(--ease),opacity .28s var(--ease);
  }
  .faq-sign::before{left:0;top:9px;width:20px;height:2px;}
  .faq-sign::after{left:9px;top:0;width:2px;height:20px;}
  .faq-btn[aria-expanded="true"] .faq-sign::after{transform:rotate(90deg);opacity:0;}
  .faq-panel{max-height:0;overflow:hidden;transition:max-height .28s var(--ease);}
  .faq-panel p{margin:0;padding:0 40px 22px 0;font-size:15px;line-height:1.85;color:var(--sub);}

  /* ============ CTA ============ */
  .cta-band{
    position:relative;overflow:hidden;background:var(--ink);color:#F1F5F2;
    padding:88px 0;
    background-image:
      linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
    background-size:40px 40px;
  }
  .cta-grid{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;}
  .cta-band h2{
    font-family:var(--ff-serif);font-size:clamp(24px,3vw,34px);line-height:1.3;
    font-weight:600;margin:0 0 10px;color:#F7FAF8;
  }
  .cta-band p{margin:0;font-size:15px;color:#AEC0B9;}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:46px;padding:0 26px;border-radius:var(--r-btn);
    font-size:15px;font-weight:500;line-height:1;cursor:pointer;
    border:1px solid transparent;
    transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
  }
  .btn i{font-size:13px;}
  .btn:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}
  .btn-primary{background:var(--ochre);color:#fff;}
  .btn-primary:hover{background:var(--ochre-deep);transform:translateY(-1px);box-shadow:0 8px 20px -12px rgba(196,98,45,.85);}
  .btn-primary:active{transform:translateY(1px);box-shadow:none;}
  .btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent;}
  .btn-ghost:hover{background:rgba(20,48,43,.07);}
  .btn-ghost:active{transform:translateY(1px);}
  .btn-light{border-color:rgba(244,247,245,.45);color:#F4F7F5;background:transparent;}
  .btn-light:hover{background:rgba(244,247,245,.12);border-color:#F4F7F5;}
  .btn-light:active{transform:translateY(1px);}
  .btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}

  /* ============ 页脚 ============ */
  .site-footer{background:var(--bg);border-top:1px solid var(--line);padding:64px 0 28px;}
  .footer-grid{
    display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
    padding-bottom:40px;border-bottom:1px solid var(--line);
  }
  .footer-desc{font-size:13.5px;color:var(--sub);line-height:1.8;margin:16px 0 0;max-width:26em;}
  .footer-title{
    font-family:var(--ff-serif);font-size:15px;font-weight:600;color:var(--ink);
    margin:0 0 16px;letter-spacing:.01em;
  }
  .footer-list{list-style:none;margin:0;padding:0;display:grid;gap:10px;}
  .footer-list a{font-size:14px;color:var(--sub);transition:color .18s var(--ease);}
  .footer-list a:hover{color:var(--cyan);}
  .footer-info{font-size:13.5px;color:var(--sub);line-height:2;margin:0;}
  .footer-info strong{color:var(--ink);font-weight:600;}
  .footer-bottom{
    display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
    padding-top:24px;font-size:12px;color:#8A9490;
  }
  .footer-bottom a{color:#8A9490;text-decoration:underline;text-underline-offset:3px;}
  .footer-bottom a:hover{color:var(--cyan);}

  /* ============ 入场动画 ============ */
  .reveal{opacity:0;transform:translateY(12px);}
  .reveal.is-in{opacity:1;transform:none;transition:opacity .48s var(--ease),transform .48s var(--ease);}
  @media (prefers-reduced-motion: reduce){
    .reveal,.reveal.is-in{opacity:1;transform:none;transition:none;}
    *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  }

  /* ============ 响应式 ============ */
  @media (max-width:1023px){
    .cat-hero-grid{grid-template-columns:1fr;gap:32px;}
    .hero-figure{order:-1;}
    .faq-layout{grid-template-columns:1fr;gap:28px;}
    .hud-grid{grid-template-columns:repeat(3,1fr);gap:20px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  }
  @media (max-width:767px){
    .header-tools .search,.header-tools .hotwords{display:none;}
    .menu-toggle{display:inline-flex;}
    .header-bottom{display:none;}
    .site-header .header-top{height:56px;}
    .cat-hero{padding:20px 0 44px;}
    .timeline::before{left:19px;}
    .tl-item{padding-left:58px;margin-bottom:22px;}
    .tl-num{width:40px;height:40px;font-size:15px;}
    .tl-card{padding:20px 20px;}
    .hud{padding:28px 22px;}
    .hud-grid{grid-template-columns:1fr;gap:0;}
    .hud-stat{padding:16px 0;border-top:1px solid rgba(244,247,245,.16);}
    .hud-stat:first-of-type{border-top:0;padding-top:0;}
    .panel{padding:22px 20px;}
    .cta-band{padding:60px 0;}
    .cta-actions{width:100%;}
    .cta-actions .btn{flex:1 1 auto;}
    .footer-grid{grid-template-columns:1fr;gap:28px;}
    .footer-bottom{flex-direction:column;gap:8px;}
  }
  @media (max-width:519px){
    .brand-main{font-size:18px;}
    .brand-sub{font-size:11.5px;}
    .filter-link{font-size:13px;padding:0 14px;min-height:38px;}
    .faq-btn{font-size:16px;}
  }

/* roulang page: category3 */
:root{
    --ink:#14302B;
    --ink-deep:#0C1F1C;
    --teal:#4E8C7D;
    --mist:#DDE9E4;
    --ochre:#C4622D;
    --bg:#F7F5F0;
    --card:#FFFFFF;
    --line:#E3DFD6;
    --text:#1C1E1C;
    --muted:#5D635E;
    --ok:#2F7D5A;
    --warn:#B4483B;
    --r-btn:6px;
    --r-card:10px;
    --r-img:12px;
    --sh:0 1px 2px rgba(20,48,43,.06);
    --sh-hover:0 10px 28px -14px rgba(20,48,43,.20);
    --ease:cubic-bezier(.22,1,.36,1);
    --serif:"Noto Serif SC","Songti SC",serif;
    --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:88px}

  .site-body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:var(--sans);
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  .site-body h1,.site-body h2,.site-body h3,.site-body h4{
    font-family:var(--serif);
    font-weight:600;
    letter-spacing:-.01em;
    color:var(--ink);
    margin:0;
    line-height:1.3;
  }
  .site-body p{margin:0}
  .site-body ul,.site-body ol{margin:0;padding:0;list-style:none}
  .site-body a{color:inherit;text-decoration:none}
  .site-body img{display:block;max-width:100%;height:auto}
  .site-body button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
  .site-body input{font:inherit}
  .site-body :focus-visible{outline:2px solid var(--teal);outline-offset:2px;border-radius:4px}

  .wrap{max-width:1200px;margin:0 auto;padding:0 32px}

  /* ============ 顶部导航 ============ */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(247,245,240,.95);
    backdrop-filter:blur(8px) saturate(1.08);
    -webkit-backdrop-filter:blur(8px) saturate(1.08);
    border-bottom:1px solid transparent;
    transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease);
  }
  .site-header.is-scrolled{
    border-bottom-color:var(--line);
    box-shadow:0 1px 2px rgba(20,48,43,.06);
    background:rgba(247,245,240,.97);
  }
  .brand-row{
    display:flex;align-items:center;justify-content:space-between;gap:24px;
    height:48px;
    transition:height .18s var(--ease);
  }
  .site-header.is-scrolled .brand-row{height:30px}

  .brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
  .brand-mark{width:8px;height:8px;border-radius:2px;background:var(--teal);flex:0 0 auto}
  .brand-text{
    font-family:var(--serif);font-weight:600;letter-spacing:-.01em;
    color:var(--ink);font-size:18px;line-height:1;
    transition:font-size .18s var(--ease);
    display:inline-flex;align-items:baseline;gap:6px;
  }
  .brand-main{white-space:nowrap}
  .brand-sub{
    font-family:var(--sans);font-weight:500;font-size:12px;
    letter-spacing:0;color:var(--muted);white-space:nowrap;
  }
  .site-header.is-scrolled .brand-text{font-size:15px}
  .site-header.is-scrolled .brand-sub{font-size:11px}

  .brand-row-right{display:flex;align-items:center;gap:20px}
  .search{
    display:flex;align-items:center;gap:8px;
    width:220px;height:34px;padding:0 10px;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-btn);
    color:var(--muted);
    transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
  }
  .search svg{flex:0 0 auto;width:14px;height:14px;stroke:var(--muted)}
  .search input{
    width:100%;border:0;background:transparent;outline:none;
    font-size:13px;color:var(--text);line-height:1;
  }
  .search input::placeholder{color:#8E938D}
  .search:focus-within{
    border-color:var(--teal);
    box-shadow:0 0 0 2px rgba(78,140,125,.30);
  }
  .hotwords{display:flex;align-items:center;gap:14px}
  .hotwords a{
    font-size:12px;color:var(--muted);position:relative;
    transition:color .18s var(--ease);
  }
  .hotwords a::after{
    content:"";position:absolute;left:0;bottom:-3px;height:1px;width:100%;
    background:var(--teal);transform:scaleX(0);transform-origin:left;
    transition:transform .18s var(--ease);
  }
  .hotwords a:hover{color:var(--teal)}
  .hotwords a:hover::after{transform:scaleX(1)}

  .channel-bar{
    display:flex;align-items:center;gap:28px;
    height:44px;
    overflow-x:auto;scrollbar-width:none;
    transition:height .18s var(--ease);
  }
  .channel-bar::-webkit-scrollbar{display:none}
  .site-header.is-scrolled .channel-bar{height:26px}
  .channel-link{
    position:relative;flex:0 0 auto;
    font-size:14px;line-height:1;color:var(--muted);
    padding:8px 0;
    transition:color .18s var(--ease),font-size .18s var(--ease);
  }
  .site-header.is-scrolled .channel-link{font-size:13px;padding:4px 0}
  .channel-link::after{
    content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
    background:var(--teal);border-radius:2px;
    transform:scaleX(0);transform-origin:left;
    transition:transform .18s var(--ease);
  }
  .channel-link:hover{color:var(--ink)}
  .channel-link:hover::after{transform:scaleX(1)}
  .channel-link.is-active{color:var(--ink);font-weight:600}
  .channel-link.is-active::after{transform:scaleX(1)}

  .nav-toggle{
    display:none;
    width:44px;height:44px;
    align-items:center;justify-content:center;
    border-radius:var(--r-btn);
    color:var(--ink);
  }
  .nav-toggle:hover{background:var(--mist)}
  .nav-toggle span{
    display:block;width:18px;height:2px;background:currentColor;position:relative;
    transition:background .18s var(--ease);
  }
  .nav-toggle span::before,.nav-toggle span::after{
    content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;
    transition:transform .18s var(--ease);
  }
  .nav-toggle span::before{top:-6px}
  .nav-toggle span::after{top:6px}

  /* 移动端抽屉 */
  .drawer{
    position:fixed;inset:0;z-index:90;
    background:var(--mist);
    padding:18px 20px 32px;
    transform:translateY(-102%);
    transition:transform .28s var(--ease);
    overflow-y:auto;
    display:flex;flex-direction:column;gap:20px;
  }
  .drawer.is-open{transform:translateY(0)}
  .drawer-top{display:flex;align-items:center;justify-content:space-between;gap:16px}
  .drawer-close{
    width:44px;height:44px;border-radius:var(--r-btn);
    display:flex;align-items:center;justify-content:center;
    font-size:22px;line-height:1;color:var(--ink);
  }
  .drawer-close:hover{background:rgba(255,255,255,.6)}
  .drawer .search{width:100%;height:44px;background:#fff}
  .drawer-nav{display:flex;flex-direction:column;border-top:1px solid rgba(20,48,43,.10)}
  .drawer-nav a{
    font-size:18px;line-height:1.5;color:var(--ink);
    padding:14px 2px;
    border-bottom:1px solid rgba(20,48,43,.10);
    display:flex;align-items:center;justify-content:space-between;
    transition:color .18s var(--ease),padding-left .18s var(--ease);
  }
  .drawer-nav a:hover,.drawer-nav a:active{color:var(--teal);padding-left:6px}
  .drawer-nav a.is-active{color:var(--teal);font-weight:600}
  .drawer-foot{font-size:13px;line-height:1.9;color:var(--muted);margin-top:auto}
  .drawer-foot strong{color:var(--ink);font-weight:600}

  /* ============ 通用组件 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:44px;padding:0 22px;
    font-size:15px;font-weight:500;line-height:1;
    border-radius:var(--r-btn);
    border:1px solid transparent;
    transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
  }
  .btn-primary{
    background:var(--ochre);color:#FFF6F1;
    box-shadow:0 1px 2px rgba(20,48,43,.08);
  }
  .btn-primary:hover{background:#A95322;transform:translateY(-1px);box-shadow:var(--sh-hover)}
  .btn-primary:active{transform:translateY(1px);box-shadow:none}
  .btn-ghost{
    background:transparent;color:var(--ink);border-color:var(--ink);
  }
  .btn-ghost:hover{background:var(--ink);color:#F3F1EA;transform:translateY(-1px)}
  .btn-ghost:active{transform:translateY(1px)}
  .btn-ghost-light{
    background:transparent;color:#EFEDE6;border-color:rgba(239,237,230,.6);
  }
  .btn-ghost-light:hover{background:rgba(239,237,230,.12);border-color:#EFEDE6;transform:translateY(-1px)}
  .btn-ghost-light:active{transform:translateY(1px);background:rgba(239,237,230,.06)}

  .tag{
    display:inline-flex;align-items:center;
    padding:4px 10px;border-radius:999px;
    background:var(--mist);color:#2C5A50;
    font-size:12px;line-height:1.5;letter-spacing:.01em;
    transition:background .18s var(--ease),color .18s var(--ease);
  }
  .tag:hover{background:#CFE0DA;color:var(--ink)}

  .eyebrow{
    font-family:var(--sans);
    font-size:12px;letter-spacing:.18em;text-transform:uppercase;
    color:var(--teal);font-weight:600;margin-bottom:12px;
  }

  .section{padding:96px 0}
  .section-head{max-width:720px;margin-bottom:48px}
  .section-head h2{font-size:clamp(24px,3vw,36px);max-width:18ch}
  .section-note{margin-top:16px;font-size:15px;line-height:1.85;color:var(--muted);max-width:62ch}

  /* ============ 面包屑 ============ */
  .crumb{
    display:flex;flex-wrap:wrap;align-items:center;gap:8px;
    font-size:13px;color:var(--muted);padding-top:4px;
  }
  .crumb a{color:var(--muted);transition:color .18s var(--ease)}
  .crumb a:hover{color:var(--teal)}
  .crumb .sep{color:#B9B4A9}
  .crumb .now{color:var(--ink);font-weight:500}

  /* ============ 页头 ============ */
  .page-head{
    position:relative;overflow:hidden;
    padding:36px 0 56px;
    border-bottom:1px solid var(--line);
    background:linear-gradient(180deg,#FBFAF6 0%,var(--bg) 100%);
  }
  .page-head::after{
    content:"";position:absolute;right:-60px;top:-40px;
    width:min(46%,540px);aspect-ratio:16/10;
    background:url(/assets/images/backpic/back-2.webp) center/cover no-repeat;
    border-radius:28px;opacity:.16;pointer-events:none;
    -webkit-mask-image:radial-gradient(ellipse at 60% 40%,#000 30%,transparent 78%);
    mask-image:radial-gradient(ellipse at 60% 40%,#000 30%,transparent 78%);
  }
  .page-head .wrap{position:relative;z-index:1}
  .page-head h1{
    margin-top:26px;
    font-size:clamp(30px,4vw,48px);
    line-height:1.18;letter-spacing:-.02em;
    max-width:22ch;
  }
  .page-lede{
    margin-top:20px;
    max-width:64ch;
    font-size:16px;line-height:1.9;color:var(--muted);
  }
  .chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
  .chip{
    display:inline-flex;align-items:center;gap:8px;
    padding:7px 15px;border-radius:999px;
    background:var(--mist);color:#2C5A50;
    font-size:13px;line-height:1.4;
    border:1px solid transparent;
    transition:border-color .18s var(--ease),background .18s var(--ease),color .18s var(--ease);
  }
  .chip::before{
    content:"";width:6px;height:6px;border-radius:2px;background:var(--teal);flex:0 0 auto;
  }
  .chip:hover{border-color:rgba(78,140,125,.55);background:#D3E3DD;color:var(--ink)}

  /* ============ 筛选条 ============ */
  .tabbar-wrap{
    border-bottom:1px solid var(--line);
    background:var(--bg);
  }
  .tabbar{
    display:flex;flex-wrap:wrap;gap:8px;
    padding:14px 0;
  }
  .tab{
    display:inline-flex;align-items:center;
    min-height:36px;padding:0 16px;
    border-radius:999px;
    background:var(--card);border:1px solid var(--line);
    font-size:13px;color:var(--muted);
    transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease),transform .18s var(--ease);
  }
  .tab:hover{color:var(--ink);border-color:rgba(78,140,125,.6);background:#fff}
  .tab:active{transform:translateY(1px)}
  .tab.is-current{background:var(--ink);border-color:var(--ink);color:#F1EFE8;font-weight:500}
  .tab.is-current:hover{background:var(--ink-deep);border-color:var(--ink-deep);color:#F1EFE8}

  /* ============ 交错图文 ============ */
  .zig-list{display:flex;flex-direction:column}
  .zig{
    display:grid;
    grid-template-columns:minmax(0,1fr) minmax(0,1fr);
    gap:56px;
    align-items:center;
    padding:48px 0;
    border-top:1px solid var(--line);
  }
  .zig:first-of-type{border-top:0;padding-top:8px}
  .zig-media{
    margin:0;position:relative;
    border-radius:var(--r-img);
    overflow:hidden;
    background:var(--mist);
    box-shadow:var(--sh);
    transition:box-shadow .28s var(--ease),border-color .28s var(--ease);
  }
  .zig-media img{
    width:100%;aspect-ratio:4/3;object-fit:cover;height:auto;
    transition:transform .48s var(--ease);
  }
  .zig:hover .zig-media{box-shadow:var(--sh-hover)}
  .zig:hover .zig-media img{transform:scale(1.03)}
  .zig:nth-of-type(even) .zig-media{order:2}

  .zig-body{min-width:0}
  .zig-index{
    display:block;
    font-family:var(--serif);
    font-size:48px;line-height:1;
    color:var(--teal);opacity:.55;
    font-variant-numeric:tabular-nums;
    margin-bottom:14px;
  }
  .zig-body h3{font-size:22px;line-height:1.4;max-width:20ch}
  .zig-summary{
    margin-top:14px;
    font-size:15px;line-height:1.85;color:var(--muted);
    max-width:46ch;
  }
  .zig-points{margin-top:18px;display:flex;flex-direction:column;gap:9px}
  .zig-points li{
    position:relative;padding-left:18px;
    font-size:14px;line-height:1.8;color:var(--text);
  }
  .zig-points li::before{
    content:"";position:absolute;left:0;top:11px;
    width:8px;height:2px;background:var(--teal);border-radius:2px;
  }
  .zig-meta{
    display:flex;flex-wrap:wrap;align-items:center;gap:12px;
    margin-top:22px;padding-top:16px;
    border-top:1px solid var(--line);
  }
  .zig-time{
    font-size:13px;color:var(--muted);
    font-variant-numeric:tabular-nums;
  }
  .zig-cat{font-size:13px;color:var(--teal)}

  /* ============ 更多场景 ============ */
  .more-block{margin-top:24px;padding-top:8px}
  .more-block h3{font-size:20px;margin-bottom:8px}
  .more-hint{font-size:14px;color:var(--muted);margin-bottom:22px}
  .more-list{border-top:1px solid var(--line)}
  .more-item{border-bottom:1px solid var(--line)}
  .more-link{
    display:grid;grid-template-columns:minmax(0,1fr) auto;gap:20px;
    align-items:center;
    padding:18px 4px 18px 16px;
    position:relative;
    transition:padding-left .18s var(--ease),background .18s var(--ease);
  }
  .more-link::before{
    content:"";position:absolute;left:0;top:50%;
    width:2px;height:26px;background:var(--teal);border-radius:2px;
    transform:translateY(-50%) scaleY(0);transform-origin:center;
    transition:transform .18s var(--ease);
  }
  .more-link:hover{padding-left:22px;background:rgba(221,233,228,.35)}
  .more-link:hover::before{transform:translateY(-50%) scaleY(1)}
  .more-link:hover .more-title{color:var(--teal)}
  .more-main{min-width:0}
  .more-title{
    display:block;font-size:16px;font-weight:500;color:var(--ink);
    line-height:1.55;transition:color .18s var(--ease);
  }
  .more-desc{
    display:block;margin-top:4px;
    font-size:14px;color:var(--muted);line-height:1.7;
    white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  }
  .more-time{
    font-size:13px;color:var(--muted);
    font-variant-numeric:tabular-nums;white-space:nowrap;
  }

  /* ============ FAQ ============ */
  .faq-section{background:#FBFAF6;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .faq-grid{
    display:grid;grid-template-columns:minmax(0,1fr) minmax(0,2fr);
    gap:48px;align-items:start;
  }
  .faq-side h2{font-size:clamp(24px,3vw,34px);max-width:12ch}
  .faq-side p{margin-top:14px;font-size:13px;line-height:1.8;color:var(--muted);max-width:30ch}
  .acc{border-top:1px solid var(--line)}
  .acc-item{border-bottom:1px solid var(--line)}
  .acc-btn{
    display:flex;align-items:center;justify-content:space-between;gap:20px;
    width:100%;padding:20px 2px;
    text-align:left;
    font-size:17px;font-weight:500;line-height:1.6;color:var(--ink);
    transition:color .18s var(--ease);
  }
  .acc-btn:hover{color:var(--teal)}
  .acc-btn:active{opacity:.85}
  .acc-icon{
    position:relative;flex:0 0 auto;
    width:20px;height:20px;
  }
  .acc-icon::before,.acc-icon::after{
    content:"";position:absolute;left:50%;top:50%;
    background:var(--teal);border-radius:2px;
    transition:transform .28s var(--ease),opacity .28s var(--ease);
  }
  .acc-icon::before{width:14px;height:2px;transform:translate(-50%,-50%)}
  .acc-icon::after{width:2px;height:14px;transform:translate(-50%,-50%)}
  .acc-item.is-open .acc-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
  .acc-panel{
    max-height:0;overflow:hidden;
    transition:max-height .28s var(--ease);
  }
  .acc-panel-inner{padding:0 2px 22px}
  .acc-panel p{font-size:15px;line-height:1.85;color:var(--muted);max-width:64ch}

  /* ============ CTA ============ */
  .cta-band{
    position:relative;overflow:hidden;
    background:var(--ink);color:#EFEDE6;
    padding:96px 0;
  }
  .cta-band::before{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:
      repeating-linear-gradient(115deg,transparent 0 38px,rgba(221,233,228,.065) 38px 39px),
      repeating-linear-gradient(65deg,transparent 0 56px,rgba(221,233,228,.05) 56px 57px);
  }
  .cta-inner{
    position:relative;z-index:1;
    display:flex;align-items:center;justify-content:space-between;gap:48px;flex-wrap:wrap;
  }
  .cta-inner h2{color:#F3F1EA;font-size:clamp(24px,3vw,34px);max-width:14ch}
  .cta-inner p{margin-top:14px;font-size:15px;line-height:1.8;color:rgba(239,237,230,.78);max-width:34ch}
  .cta-actions{display:flex;gap:12px;flex-wrap:wrap}

  /* ============ 页脚 ============ */
  .site-footer{
    background:var(--bg);
    border-top:1px solid var(--line);
    padding:64px 0 28px;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.6fr 1fr 1fr 1.3fr;
    gap:40px;
  }
  .footer-desc{
    margin-top:18px;font-size:13px;line-height:1.85;color:var(--muted);max-width:32ch;
  }
  .footer-title{
    font-family:var(--sans);font-size:14px;font-weight:600;color:var(--ink);
    letter-spacing:.02em;margin-bottom:16px;
  }
  .footer-list li{margin-bottom:10px}
  .footer-list a{
    position:relative;display:inline-block;
    font-size:14px;color:var(--muted);
    transition:color .18s var(--ease);
  }
  .footer-list a::after{
    content:"";position:absolute;left:0;bottom:-2px;height:1px;width:100%;
    background:var(--teal);transform:scaleX(0);transform-origin:left;
    transition:transform .18s var(--ease);
  }
  .footer-list a:hover{color:var(--ink)}
  .footer-list a:hover::after{transform:scaleX(1)}
  .footer-info{font-size:13px;line-height:2;color:var(--muted)}
  .footer-info strong{color:var(--ink);font-weight:600}
  .footer-bottom{
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    margin-top:48px;padding-top:20px;
    border-top:1px solid var(--line);
    font-size:12px;color:var(--muted);
  }
  .footer-bottom a{color:var(--muted);transition:color .18s var(--ease)}
  .footer-bottom a:hover{color:var(--teal)}

  /* ============ 入场动画 ============ */
  .reveal{opacity:0;transform:translateY(12px);transition:opacity .48s var(--ease),transform .48s var(--ease)}
  .reveal.is-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 !important;transform:none !important}
  }

  /* ============ 响应式 ============ */
  @media (max-width:1024px){
    .wrap{padding:0 28px}
    .section{padding:80px 0}
    .zig{gap:40px}
    .faq-grid{grid-template-columns:1fr;gap:28px}
    .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
    .footer-grid > div:last-child{grid-column:1 / -1}
    .cta-band{padding:80px 0}
  }

  @media (max-width:900px){
    .zig{grid-template-columns:1fr;gap:24px;padding:40px 0}
    .zig:nth-of-type(even) .zig-media{order:0}
    .zig-index{font-size:38px;margin-bottom:10px}
    .zig-body h3{max-width:none}
    .zig-summary{max-width:none}
  }

  @media (max-width:768px){
    html{scroll-padding-top:64px}
    .wrap{padding:0 20px}
    .section{padding:56px 0}
    .section-head{margin-bottom:32px}
    .site-header.is-scrolled .brand-row{height:48px}
    .site-header.is-scrolled .channel-bar{height:44px}
    .site-header.is-scrolled .brand-text{font-size:18px}
    .site-header.is-scrolled .brand-sub{font-size:12px}
    .site-header.is-scrolled .channel-link{font-size:14px;padding:8px 0}
    .channel-bar{display:none}
    .search,.hotwords{display:none}
    .nav-toggle{display:flex}
    .brand-row-right{gap:0}
    .page-head{padding:24px 0 40px}
    .page-head::after{opacity:.10;width:70%;right:-90px;top:-30px}
    .page-head h1{margin-top:18px}
    .page-lede{margin-top:16px;font-size:15px}
    .chip-row{margin-top:22px}
    .zig-time,.more-time{font-size:12px}
    .more-desc{white-space:normal;overflow:visible;text-overflow:clip}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
    .footer-grid > div:first-child{grid-column:1 / -1}
    .footer-grid > div:last-child{grid-column:1 / -1}
    .site-footer{padding:48px 0 24px}
    .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;margin-top:32px}
    .cta-band{padding:56px 0}
    .cta-inner{gap:28px}
    .cta-actions{width:100%}
    .cta-actions .btn{flex:1 1 160px}
  }

  @media (max-width:520px){
    .page-head h1{font-size:28px}
    .zig-body h3{font-size:20px}
    .acc-btn{font-size:16px;padding:18px 2px}
    .more-link{grid-template-columns:1fr;gap:6px;padding:16px 4px 16px 14px}
    .more-link:hover{padding-left:18px}
    .tabbar{gap:6px}
    .tab{padding:0 13px;font-size:12px}
    .cta-actions .btn{width:100%;flex:1 1 100%}
  }

/* roulang page: category4 */
:root{
    --ink:#14302B;
    --ink-deep:#0C1F1C;
    --teal:#4E8C7D;
    --mist:#DDE9E4;
    --amber:#C4622D;
    --amber-deep:#A94F21;
    --bg:#F7F5F0;
    --card:#FFFFFF;
    --line:#E3DFD6;
    --text:#1C1E1C;
    --muted:#5D635E;
    --success:#2F7D5A;
    --warn:#B4483B;
    --r-btn:6px;
    --r-card:10px;
    --r-img:12px;
    --sh-1:0 1px 2px rgba(20,48,43,.06);
    --sh-2:0 10px 28px -14px rgba(20,48,43,.20);
    --ease:cubic-bezier(.22,1,.36,1);
    --font-serif:"Noto Serif SC","Songti SC",serif;
    --font-sans:PingFang SC,"Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
  body{
    margin:0;
    font-family:var(--font-sans);
    font-size:16px;
    line-height:1.85;
    color:var(--text);
    background:var(--bg);
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block;height:auto}
  a{color:inherit;text-decoration:none}
  button{font-family:inherit}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0}
  ul,ol{padding:0;list-style:none}
  :focus-visible{outline:2px solid var(--teal);outline-offset:3px;border-radius:4px}

  .wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
  @media (max-width:767px){.wrap{padding:0 20px}}

  /* ---------- 品牌字标 ---------- */
  .brand{display:inline-flex;align-items:center;gap:10px;min-height:44px}
  .brand-mark{width:8px;height:8px;background:var(--teal);border-radius:2px;flex:0 0 auto;transition:transform 180ms var(--ease)}
  .brand:hover .brand-mark{transform:rotate(45deg)}
  .brand-main{font-family:var(--font-serif);font-size:20px;font-weight:600;letter-spacing:-.01em;color:var(--ink);line-height:1}
  .brand-sub{font-size:12px;letter-spacing:.03em;color:var(--muted);line-height:1;margin-left:2px}

  /* ---------- 头部 ---------- */
  .site-header{
    position:sticky;top:0;z-index:70;
    background:rgba(247,245,240,.95);
    -webkit-backdrop-filter:blur(8px);
    backdrop-filter:blur(8px);
    border-bottom:1px solid var(--line);
    transition:box-shadow 180ms var(--ease);
  }
  .site-header.is-scrolled{box-shadow:0 1px 0 rgba(20,48,43,.06)}
  .header-top{
    display:flex;align-items:center;justify-content:space-between;gap:24px;
    height:48px;transition:height 280ms var(--ease);
  }
  .site-header.is-scrolled .header-top{height:56px}
  .header-tools{display:flex;align-items:center;gap:20px}
  .search-box{
    display:flex;align-items:center;gap:8px;height:36px;padding:0 12px;
    width:220px;background:#fff;border:1px solid var(--line);border-radius:var(--r-btn);
    transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
  }
  .search-box i{font-size:12px;color:var(--muted)}
  .search-box input{
    border:0;outline:0;background:transparent;width:100%;
    font-size:13px;color:var(--text);font-family:inherit;
  }
  .search-box input::placeholder{color:#9AA09A}
  .search-box:focus-within{border-color:var(--teal);box-shadow:0 0 0 2px rgba(78,140,125,.22)}
  .hot-links{display:flex;align-items:center;gap:14px;font-size:13px}
  .hot-label{color:#9AA09A;font-size:12px;letter-spacing:.08em}
  .hot-links a{
    color:var(--muted);position:relative;padding:2px 0;
    transition:color 180ms var(--ease);
  }
  .hot-links a::after{
    content:"";position:absolute;left:0;bottom:0;height:1px;width:0;background:var(--teal);
    transition:width 180ms var(--ease);
  }
  .hot-links a:hover{color:var(--teal)}
  .hot-links a:hover::after{width:100%}
  .nav-toggle{
    display:none;align-items:center;justify-content:center;
    width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
    background:#fff;color:var(--ink);cursor:pointer;
    transition:border-color 180ms var(--ease),background 180ms var(--ease);
  }
  .nav-toggle:hover{border-color:var(--teal);background:var(--mist)}
  .nav-toggle:active{transform:translateY(1px)}

  .channel-wrap{height:44px;display:flex;align-items:center;overflow:hidden;transition:height 280ms var(--ease),opacity 180ms var(--ease)}
  .site-header.is-scrolled .channel-wrap{height:0;opacity:0}
  .channel-bar{
    display:flex;align-items:center;gap:28px;height:44px;
    overflow-x:auto;scrollbar-width:none;width:100%;
  }
  .channel-bar::-webkit-scrollbar{display:none}
  .channel-link{
    position:relative;line-height:44px;font-size:15px;color:var(--muted);
    white-space:nowrap;transition:color 180ms var(--ease);
  }
  .channel-link::after{
    content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--teal);
    transform:scaleX(0);transform-origin:left;transition:transform 180ms var(--ease);
  }
  .channel-link:hover{color:var(--ink)}
  .channel-link:hover::after{transform:scaleX(1)}
  .channel-link.is-active{color:var(--ink);font-weight:600}
  .channel-link.is-active::after{transform:scaleX(1)}

  /* ---------- 移动抽屉 ---------- */
  .drawer{
    position:fixed;inset:0;z-index:90;background:var(--mist);
    display:flex;flex-direction:column;padding:20px;
    transform:translateX(100%);visibility:hidden;
    transition:transform 280ms var(--ease),visibility 280ms var(--ease);
    overflow-y:auto;
  }
  .drawer.is-open{transform:translateX(0);visibility:visible}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
  .drawer-close{
    width:44px;height:44px;border:1px solid rgba(20,48,43,.18);border-radius:var(--r-btn);
    background:transparent;color:var(--ink);cursor:pointer;
    display:flex;align-items:center;justify-content:center;
    transition:background 180ms var(--ease);
  }
  .drawer-close:hover{background:rgba(255,255,255,.6)}
  .drawer-search{
    display:flex;align-items:center;gap:8px;height:44px;padding:0 12px;
    background:#fff;border:1px solid rgba(20,48,43,.12);border-radius:var(--r-btn);margin-bottom:20px;
  }
  .drawer-search input{border:0;outline:0;width:100%;background:transparent;font-size:14px;font-family:inherit}
  .drawer-search:focus-within{border-color:var(--teal);box-shadow:0 0 0 2px rgba(78,140,125,.22)}
  .drawer-nav{display:flex;flex-direction:column;gap:2px}
  .drawer-nav a{
    font-size:18px;color:var(--ink);padding:12px 4px;border-bottom:1px solid rgba(20,48,43,.10);
    display:flex;align-items:center;justify-content:space-between;min-height:44px;
    transition:color 180ms var(--ease),padding-left 180ms var(--ease);
  }
  .drawer-nav a:hover,.drawer-nav a:focus-visible{color:var(--teal);padding-left:8px}
  .drawer-nav a.is-active{color:var(--teal);font-weight:600}
  .drawer-foot{margin-top:auto;padding-top:24px;font-size:13px;color:var(--muted);line-height:1.9}
  .drawer-foot strong{color:var(--ink);font-weight:600}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:44px;padding:0 22px;border-radius:var(--r-btn);
    font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
    transition:background 180ms var(--ease),color 180ms var(--ease),border-color 180ms var(--ease),transform 180ms var(--ease),box-shadow 180ms var(--ease);
  }
  .btn-primary{background:var(--amber);color:#fff;border-color:var(--amber)}
  .btn-primary:hover{background:var(--amber-deep);border-color:var(--amber-deep);transform:translateY(-1px);box-shadow:var(--sh-2)}
  .btn-primary:active{transform:translateY(1px);box-shadow:none}
  .btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
  .btn-ghost:hover{background:rgba(20,48,43,.07);transform:translateY(-1px)}
  .btn-ghost:active{transform:translateY(1px);box-shadow:none}
  .btn-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.62)}
  .btn-light:hover{background:rgba(255,255,255,.13);transform:translateY(-1px)}
  .btn-light:active{transform:translateY(1px)}
  .btn[disabled],.btn:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}

  /* ---------- 面包屑 ---------- */
  .breadcrumb{
    display:flex;align-items:center;gap:8px;flex-wrap:wrap;
    font-size:13px;color:var(--muted);padding:24px 0 0;
  }
  .breadcrumb a{transition:color 180ms var(--ease)}
  .breadcrumb a:hover{color:var(--teal);text-decoration:underline;text-underline-offset:3px}
  .breadcrumb span[aria-current]{color:var(--ink);font-weight:600}
  .breadcrumb .sep{color:#B9BEB8}

  /* ---------- 分类页头 ---------- */
  .page-hero{
    padding:8px 0 72px;
    background-image:linear-gradient(rgba(247,245,240,.93),rgba(247,245,240,.99)),url('/assets/images/backpic/back-2.webp');
    background-size:cover;background-position:center;border-bottom:1px solid var(--line);
  }
  .hero-grid{
    display:grid;grid-template-columns:1.08fr .92fr;gap:64px;align-items:center;
    padding-top:36px;
  }
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12px;letter-spacing:.14em;color:var(--teal);font-weight:600;
    text-transform:uppercase;
  }
  .eyebrow::before{content:"";width:20px;height:2px;background:var(--teal);display:block}
  .page-hero h1{
    font-family:var(--font-serif);font-weight:600;letter-spacing:-.02em;
    font-size:clamp(32px,4.4vw,52px);line-height:1.16;color:var(--ink);
    margin:18px 0 20px;max-width:18ch;
  }
  .hero-lead{
    font-size:16px;line-height:1.9;color:var(--muted);max-width:46ch;
  }
  .chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
  .chip{
    display:inline-flex;align-items:center;gap:6px;
    padding:5px 13px;border-radius:999px;background:var(--mist);
    color:var(--ink);font-size:13px;line-height:1.5;white-space:nowrap;
  }
  .chip i{font-size:11px;color:var(--teal)}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
  .hero-figure{margin:0}
  .hero-figure img{
    width:100%;aspect-ratio:4/3;object-fit:cover;
    border-radius:var(--r-img);background:var(--mist);
    border:1px solid var(--line);box-shadow:var(--sh-1);
  }
  .hero-figure figcaption{
    margin-top:12px;font-size:13px;color:var(--muted);text-align:center;
  }

  /* ---------- 筛选条 ---------- */
  .filter-bar{
    position:sticky;top:56px;z-index:55;
    background:rgba(255,255,255,.94);
    -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
    border-bottom:1px solid var(--line);
  }
  .filter-inner{
    display:flex;align-items:center;gap:20px;min-height:56px;flex-wrap:nowrap;
    overflow-x:auto;scrollbar-width:none;
  }
  .filter-inner::-webkit-scrollbar{display:none}
  .filter-label{font-size:12px;letter-spacing:.1em;color:#9AA09A;white-space:nowrap}
  .filter-links{display:flex;align-items:center;gap:8px;flex-wrap:nowrap}
  .filter-links a{
    display:inline-flex;align-items:center;min-height:44px;padding:0 14px;
    border-radius:999px;font-size:14px;color:var(--muted);white-space:nowrap;
    border:1px solid transparent;
    transition:background 180ms var(--ease),color 180ms var(--ease),border-color 180ms var(--ease);
  }
  .filter-links a:hover{background:var(--mist);color:var(--ink)}
  .filter-links a.is-active{background:var(--ink);color:#fff;border-color:var(--ink)}
  .filter-links a:active{transform:translateY(1px)}

  /* ---------- 通用板块 ---------- */
  .section{padding:96px 0}
  .section-alt{background:#FBF9F5;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:48px;flex-wrap:wrap}
  .section-head h2{
    font-family:var(--font-serif);font-weight:600;letter-spacing:-.01em;
    font-size:clamp(24px,3vw,34px);line-height:1.25;color:var(--ink);max-width:14ch;
  }
  .section-head p{font-size:14px;color:var(--muted);max-width:52ch;line-height:1.8}

  /* ---------- 定义式清单 ---------- */
  .def-list{border-bottom:1px solid var(--line)}
  .def-row{
    display:grid;grid-template-columns:280px 1fr;gap:32px;
    padding:26px 12px;border-top:1px solid var(--line);
    transition:background 180ms var(--ease);
  }
  .def-row:hover{background:rgba(221,233,228,.38)}
  .def-term h3{
    font-family:var(--font-serif);font-size:19px;font-weight:600;line-height:1.45;
    color:var(--ink);margin-bottom:10px;letter-spacing:-.01em;
  }
  .chip-sm{padding:3px 10px;font-size:12px}
  .def-desc p{font-size:15px;line-height:1.85;color:var(--muted);max-width:68ch}
  .def-desc time{
    display:inline-block;margin-top:12px;font-size:12px;color:#8A8F89;
    font-variant-numeric:tabular-nums;letter-spacing:.02em;
  }

  /* ---------- 指标带 ---------- */
  .metrics{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:44px 0;background:var(--bg)}
  .metrics-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
  .metric{padding-left:20px;border-left:1px solid var(--line)}
  .metric:first-child{border-left:0;padding-left:0}
  .metric-num{
    display:block;font-family:var(--font-serif);font-size:clamp(30px,4vw,40px);
    line-height:1.1;color:var(--ink);font-variant-numeric:tabular-nums;letter-spacing:-.02em;
  }
  .metric-label{display:block;margin-top:8px;font-size:13px;color:var(--muted);line-height:1.7}

  /* ---------- 受理步骤 ---------- */
  .step-list{display:grid}
  .step-list li{
    display:grid;grid-template-columns:96px 1fr;gap:28px;align-items:start;
    padding:28px 0;border-top:1px solid var(--line);
  }
  .step-list li:last-child{border-bottom:1px solid var(--line)}
  .step-no{
    font-family:var(--font-serif);font-size:44px;line-height:1;color:var(--teal);opacity:.9;
    font-variant-numeric:tabular-nums;
  }
  .step-body h3{font-size:18px;font-weight:600;color:var(--ink);margin-bottom:8px;line-height:1.5}
  .step-body p{font-size:15px;line-height:1.85;color:var(--muted);max-width:62ch}
  .step-body .tag{
    display:inline-block;margin-top:12px;font-size:12px;color:var(--teal);
    background:rgba(221,233,228,.7);padding:3px 10px;border-radius:999px;
  }

  /* ---------- FAQ ---------- */
  .faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start}
  .faq-intro h2{
    font-family:var(--font-serif);font-size:clamp(24px,3vw,34px);font-weight:600;
    line-height:1.25;color:var(--ink);margin-bottom:14px;max-width:12ch;
  }
  .faq-intro p{font-size:13px;line-height:1.8;color:var(--muted);max-width:26ch}
  .faq-item{border-top:1px solid var(--line)}
  .faq-item:last-child{border-bottom:1px solid var(--line)}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
    background:none;border:0;padding:20px 0;min-height:44px;text-align:left;
    font-size:17px;font-weight:500;color:var(--ink);cursor:pointer;
    transition:color 180ms var(--ease);
  }
  .faq-q:hover{color:var(--teal)}
  .faq-q:active{opacity:.85}
  .faq-icon{
    flex:0 0 auto;width:20px;height:20px;display:flex;align-items:center;justify-content:center;
    color:var(--teal);font-size:13px;transition:transform 280ms var(--ease);
  }
  .faq-item.is-open .faq-icon{transform:rotate(45deg)}
  .faq-a{overflow:hidden;max-height:0;transition:max-height 280ms var(--ease)}
  .faq-item.is-open .faq-a{max-height:360px}
  .faq-a p{font-size:15px;line-height:1.85;color:var(--muted);padding-bottom:22px;max-width:64ch}

  /* ---------- 表单 ---------- */
  .form-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
  .form-intro h2{
    font-family:var(--font-serif);font-size:clamp(24px,3vw,32px);font-weight:600;
    line-height:1.28;color:var(--ink);margin-bottom:14px;max-width:14ch;
  }
  .form-intro p{font-size:15px;line-height:1.85;color:var(--muted);max-width:34ch}
  .check-list{margin-top:26px;display:grid;gap:12px}
  .check-list li{
    display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--muted);line-height:1.75;
  }
  .check-list i{color:var(--teal);font-size:12px;margin-top:5px;flex:0 0 auto}
  .support-form{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    box-shadow:var(--sh-1);padding:32px;display:grid;gap:20px;
  }
  .field{display:grid;gap:8px}
  .field label{font-size:13px;color:var(--muted)}
  .field input,.field select,.field textarea{
    width:100%;min-height:44px;padding:10px 12px;font-family:inherit;font-size:15px;color:var(--text);
    background:#fff;border:1px solid var(--line);border-radius:var(--r-btn);
    transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
  }
  .field textarea{min-height:112px;resize:vertical;line-height:1.75}
  .field input::placeholder,.field textarea::placeholder{color:#A8ADA7}
  .field input:hover,.field select:hover,.field textarea:hover{border-color:#C9CFC8}
  .field input:focus,.field select:focus,.field textarea:focus{
    outline:0;border-color:var(--teal);box-shadow:0 0 0 2px rgba(78,140,125,.22);
  }
  .field input:disabled,.field select:disabled,.field textarea:disabled{
    background:#F2F0EA;color:#9AA09A;cursor:not-allowed;
  }
  .form-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
  .form-actions .btn{min-width:160px}
  .form-tip{font-size:12px;color:#8A8F89;line-height:1.7}
  .form-msg{font-size:13px;color:var(--success);min-height:20px}
  .form-msg.is-error{color:var(--warn)}

  /* ---------- CTA ---------- */
  .cta-band{
    position:relative;background:var(--ink);color:#fff;overflow:hidden;
    padding:96px 0;
  }
  .cta-band::before{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.06) 0 1px,transparent 1px 28px);
  }
  .cta-inner{
    position:relative;display:flex;align-items:center;justify-content:space-between;
    gap:48px;flex-wrap:wrap;
  }
  .cta-inner h2{
    font-family:var(--font-serif);font-size:clamp(26px,3.4vw,38px);font-weight:600;
    line-height:1.22;color:#fff;letter-spacing:-.01em;max-width:14ch;
  }
  .cta-inner p{margin-top:14px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.72);max-width:32ch}
  .cta-actions{display:flex;gap:14px;flex-wrap:wrap}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--bg);border-top:1px solid var(--line);padding:64px 0 28px}
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
  .footer-desc{margin-top:18px;font-size:13px;line-height:1.85;color:var(--muted);max-width:34ch}
  .footer-title{
    font-size:13px;font-weight:600;color:var(--ink);letter-spacing:.06em;margin-bottom:16px;
  }
  .footer-list{display:grid;gap:10px}
  .footer-list a{
    font-size:14px;color:var(--muted);display:inline-block;min-height:22px;
    transition:color 180ms var(--ease),padding-left 180ms var(--ease);
  }
  .footer-list a:hover{color:var(--teal);padding-left:4px}
  .footer-info{font-size:13px;line-height:1.95;color:var(--muted)}
  .footer-info strong{color:var(--ink);font-weight:600}
  .footer-bottom{
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    margin-top:48px;padding-top:20px;border-top:1px solid var(--line);
    font-size:12px;color:#8A8F89;
  }
  .footer-bottom a{color:#8A8F89;text-decoration:underline;text-underline-offset:3px;transition:color 180ms var(--ease)}
  .footer-bottom a:hover{color:var(--teal)}

  /* ---------- 入场动画 ---------- */
  .js .reveal{opacity:0;transform:translateY(12px)}
  .js .reveal.is-in{opacity:1;transform:none;transition:opacity 480ms var(--ease),transform 480ms var(--ease)}

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

  /* ---------- 响应式 ---------- */
  @media (max-width:1023px){
    .hero-grid{grid-template-columns:1fr;gap:40px}
    .hero-figure{order:-1}
    .hero-figure img{aspect-ratio:16/10}
    .faq-grid{grid-template-columns:1fr;gap:32px}
    .form-grid{grid-template-columns:1fr;gap:36px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
    .filter-bar{top:56px}
  }
  @media (max-width:767px){
    .search-box,.hot-links{display:none}
    .nav-toggle{display:flex}
    .channel-wrap{display:none}
    .header-top{height:56px}
    .site-header.is-scrolled .header-top{height:56px}
    .section{padding:56px 0}
    .page-hero{padding-bottom:48px}
    .page-hero h1{max-width:none}
    .section-head{margin-bottom:32px;align-items:flex-start}
    .def-row{grid-template-columns:1fr;gap:12px;padding:22px 8px}
    .metrics-grid{grid-template-columns:1fr;gap:20px}
    .metric{border-left:0;padding-left:0;padding-top:16px;border-top:1px solid var(--line)}
    .metric:first-child{padding-top:0;border-top:0}
    .step-list li{grid-template-columns:60px 1fr;gap:16px;padding:22px 0}
    .step-no{font-size:34px}
    .cta-band{padding:56px 0}
    .cta-inner{gap:28px}
    .support-form{padding:22px}
    .footer-grid{grid-template-columns:1fr;gap:32px}
    .footer-bottom{justify-content:flex-start;margin-top:36px}
  }
  @media (max-width:519px){
    .hero-actions .btn{width:100%}
    .cta-actions{width:100%}
    .cta-actions .btn{width:100%}
    .form-actions .btn{width:100%;min-width:0}
    .brand-main{font-size:18px}
    .filter-inner{gap:12px}
  }

/* roulang page: category5 */
:root{
  --ink:#14302B;
  --ink-deep:#0C1F1C;
  --cyan:#4E8C7D;
  --mist:#DDE9E4;
  --ochre:#C4622D;
  --ochre-deep:#A44E1F;
  --bg:#F7F5F0;
  --card:#FFFFFF;
  --line:#E3DFD6;
  --text:#1C1E1C;
  --muted:#5D635E;
  --success:#2F7D5A;
  --warn:#B4483B;
  --r-sm:6px;
  --r-md:10px;
  --r-lg:12px;
  --shadow-1:0 1px 2px rgba(20,48,43,.06);
  --shadow-2:0 10px 28px -14px rgba(20,48,43,.20);
  --ease:cubic-bezier(.22,1,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease);}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
input,button,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px;}

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

/* ---------- 品牌字标 ---------- */
.brand{display:inline-flex;align-items:center;gap:10px;min-height:44px;}
.brand-mark{width:8px;height:8px;background:var(--cyan);display:block;flex:none;}
.brand-text{font-family:"Noto Serif SC","Songti SC",serif;font-weight:600;letter-spacing:-0.01em;font-size:19px;color:var(--ink);line-height:1.2;}
.brand-main{color:var(--ink);}
.brand-sub{color:var(--muted);font-size:14px;font-weight:500;letter-spacing:0;}

/* ---------- 吸顶导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(247,245,240,.95);
  backdrop-filter:saturate(120%) blur(8px);
  border-bottom:1px solid var(--line);
}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:24px;height:64px;transition:height .28s var(--ease);}
.site-header.is-scrolled .brand-row{height:48px;}
.brand-tools{display:flex;align-items:center;gap:16px;}
.search-box{position:relative;display:flex;align-items:center;width:220px;}
.search-input{
  width:100%;height:38px;padding:0 40px 0 14px;
  border:1px solid var(--line);border-radius:var(--r-sm);
  background:#fff;color:var(--text);font-size:14px;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.search-input::placeholder{color:#9AA39C;}
.search-input:hover{border-color:#C8D3CD;}
.search-input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 2px rgba(78,140,125,.22);}
.search-btn{
  position:absolute;right:4px;top:50%;transform:translateY(-50%);
  width:32px;height:32px;display:grid;place-items:center;
  border:0;background:transparent;color:var(--muted);border-radius:var(--r-sm);
  transition:color .18s var(--ease),background-color .18s var(--ease);
}
.search-btn:hover{color:var(--ink);background:var(--mist);}
.search-btn:active{background:#CFE0D9;}
.hot-words{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--muted);}
.hot-words a{color:var(--muted);border-bottom:1px solid transparent;padding-bottom:1px;}
.hot-words a:hover{color:var(--ink);border-bottom-color:var(--cyan);}
.menu-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px;
  transition:background-color .18s var(--ease),border-color .18s var(--ease);
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .28s var(--ease),opacity .18s var(--ease);}
.menu-toggle:hover{background:var(--mist);border-color:#C8D3CD;}
.menu-toggle:active{background:#CFE0D9;}

.channel-row{border-top:1px solid rgba(227,223,214,.85);}
.channel-bar{display:flex;align-items:center;gap:8px;height:44px;overflow-x:auto;scrollbar-width:none;}
.channel-bar::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 14px;
  font-size:15px;color:var(--muted);white-space:nowrap;
  transition:color .18s var(--ease),background-color .18s var(--ease);
}
.channel-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;
  background:var(--cyan);transform:scaleX(0);transform-origin:left;
  transition:transform .18s var(--ease);
}
.channel-link:hover{color:var(--ink);}
.channel-link:hover::after{transform:scaleX(1);}
.channel-link.is-active{color:var(--ink);font-weight:600;}
.channel-link.is-active::after{transform:scaleX(1);}
.channel-link:active{background:rgba(221,233,228,.55);}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{
  position:fixed;inset:0;z-index:80;background:var(--mist);
  transform:translateY(-100%);opacity:0;visibility:hidden;
  transition:transform .28s var(--ease),opacity .28s var(--ease),visibility .28s;
  overflow-y:auto;padding:20px;
}
.mobile-drawer.is-open{transform:translateY(0);opacity:1;visibility:visible;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:16px;border-bottom:1px solid rgba(20,48,43,.12);}
.drawer-close{
  width:44px;height:44px;border:1px solid rgba(20,48,43,.18);border-radius:var(--r-sm);
  background:transparent;color:var(--ink);font-size:22px;line-height:1;display:grid;place-items:center;
}
.drawer-close:hover{background:rgba(255,255,255,.6);}
.drawer-search{margin:20px 0 8px;}
.drawer-nav{display:flex;flex-direction:column;margin-top:12px;}
.drawer-nav a{
  padding:14px 4px;font-size:18px;color:var(--ink);border-bottom:1px solid rgba(20,48,43,.10);
  display:flex;align-items:center;justify-content:space-between;
}
.drawer-nav a:hover{color:var(--cyan);}
.drawer-nav a.is-active{color:var(--cyan);font-weight:600;}
.drawer-foot{margin-top:24px;font-size:13px;color:#3C4A45;line-height:1.9;}

/* ---------- 分类页头 ---------- */
.cat-hero{
  padding:48px 0 72px;
  border-bottom:1px solid var(--line);
  background-color:var(--bg);
  background-image:linear-gradient(rgba(20,48,43,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(20,48,43,.04) 1px,transparent 1px);
  background-size:24px 24px;
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:24px;}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--cyan);}
.crumbs span.sep{color:#B9C1BB;}
.crumbs .current{color:var(--ink);}
.cat-hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:48px;align-items:center;}
.cat-hero h1{
  font-family:"Noto Serif SC","Songti SC",serif;
  font-weight:600;letter-spacing:-0.02em;line-height:1.15;
  font-size:clamp(30px,4.2vw,46px);
  color:var(--ink);
  max-width:18ch;
}
.cat-hero h1 .h1-brand{display:block;font-size:15px;letter-spacing:.02em;font-weight:500;color:var(--cyan);margin-top:14px;font-family:"PingFang SC","Microsoft YaHei",sans-serif;}
.cat-lead{margin-top:20px;max-width:60ch;color:var(--muted);font-size:16px;line-height:1.85;}
.point-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.point-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;background:var(--mist);
  font-size:13px;color:#2C4C44;border:1px solid rgba(78,140,125,.22);
}
.point-chip::before{content:"";width:4px;height:12px;background:var(--cyan);border-radius:2px;}
.hero-figure{
  position:relative;border-radius:var(--r-lg);overflow:hidden;background:var(--mist);
  aspect-ratio:16/10;border:1px solid var(--line);box-shadow:var(--shadow-1);
}
.hero-figure img{width:100%;height:100%;object-fit:cover;transition:transform .48s var(--ease);}
.hero-figure::after{content:"";position:absolute;inset:0;background:rgba(20,48,43,.08);pointer-events:none;}
.hero-figure:hover img{transform:scale(1.03);}
.hero-figure figcaption{
  position:absolute;left:16px;bottom:14px;z-index:2;
  font-size:12px;color:#F2F7F4;background:rgba(12,31,28,.62);
  padding:4px 10px;border-radius:999px;letter-spacing:.01em;
}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
@media (max-width:768px){
  .section{padding:60px 0;}
  .section--tight{padding:48px 0;}
  .cat-hero{padding:32px 0 48px;}
  .cat-hero-grid{grid-template-columns:1fr;gap:32px;}
}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:40px;}
.section-head h2{
  font-family:"Noto Serif SC","Songti SC",serif;font-weight:600;
  font-size:clamp(23px,3vw,32px);line-height:1.3;color:var(--ink);letter-spacing:-0.01em;
  max-width:18ch;
}
.section-head p{font-size:13px;color:var(--muted);max-width:46ch;line-height:1.75;}
.textlink{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--cyan);position:relative;}
.textlink::after{
  content:"";position:absolute;left:0;right:0;bottom:-3px;height:1px;background:var(--cyan);
  transform:scaleX(0);transform-origin:left;transition:transform .18s var(--ease);
}
.textlink:hover::after{transform:scaleX(1);}
.textlink:hover{color:var(--ink);}

/* ---------- 标签云 ---------- */
.tag-panel{
  border:1px solid var(--line);border-radius:var(--r-md);background:var(--card);
  padding:24px;box-shadow:var(--shadow-1);
}
.tag-panel-title{font-size:13px;color:var(--muted);margin-bottom:14px;letter-spacing:.02em;}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 14px;border-radius:999px;border:1px solid rgba(78,140,125,.28);
  background:#fff;font-size:13px;color:#2C4C44;min-height:34px;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.tag:hover{background:var(--mist);border-color:var(--cyan);transform:translateY(-1px);}
.tag:active{transform:translateY(0);background:#CFE0D9;}
.tag .tag-num{font-size:11px;color:var(--cyan);font-variant-numeric:tabular-nums;}

/* ---------- 观察双列 ---------- */
.obs-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;margin-top:32px;}
.obs-main{display:flex;flex-direction:column;gap:24px;}
.obs-card{
  display:grid;grid-template-columns:1fr;gap:0;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.obs-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(78,140,125,.45);}
.obs-card-media{display:block;aspect-ratio:16/9;background:var(--mist);overflow:hidden;}
.obs-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .48s var(--ease);}
.obs-card:hover .obs-card-media img{transform:scale(1.03);}
.obs-card-body{padding:24px;}
.obs-card h3{
  font-family:"Noto Serif SC","Songti SC",serif;font-size:21px;line-height:1.45;
  font-weight:600;color:var(--ink);margin:12px 0 10px;letter-spacing:-0.01em;
}
.obs-card h3 a:hover{color:var(--cyan);}
.obs-card p{font-size:15px;color:var(--muted);line-height:1.8;}
.chip{
  display:inline-block;padding:3px 10px;border-radius:999px;background:var(--mist);
  font-size:12px;color:#2C4C44;letter-spacing:.02em;
}
.meta{display:flex;align-items:center;gap:12px;margin-top:16px;font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums;}
.meta .dot{width:3px;height:3px;border-radius:50%;background:#B9C1BB;}

.obs-side{background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);padding:8px 24px;box-shadow:var(--shadow-1);}
.obs-side-head{font-size:13px;color:var(--muted);padding:16px 0 12px;border-bottom:1px solid var(--line);letter-spacing:.02em;}
.side-item{display:block;padding:20px 0;border-bottom:1px solid var(--line);position:relative;transition:padding-left .18s var(--ease);}
.side-item:last-child{border-bottom:0;}
.side-item::before{
  content:"";position:absolute;left:-10px;top:24px;width:2px;height:0;background:var(--cyan);
  transition:height .18s var(--ease);
}
.side-item:hover::before{height:22px;}
.side-item:hover{padding-left:6px;}
.side-item h3{font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;transition:color .18s var(--ease);}
.side-item:hover h3{color:var(--cyan);}
.side-item p{font-size:14px;color:var(--muted);line-height:1.75;margin-top:8px;}
.side-item .meta{margin-top:10px;}

/* ---------- 指标带 ---------- */
.metric-band{
  display:grid;grid-template-columns:repeat(3,1fr);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:40px 0;
}
.metric{padding:0 24px;border-left:1px solid var(--line);}
.metric:first-child{border-left:0;padding-left:0;}
.metric-num{
  font-family:"Noto Serif SC","Songti SC",serif;font-size:40px;line-height:1.1;
  color:var(--ink);font-variant-numeric:tabular-nums;letter-spacing:-0.02em;
}
.metric-num small{font-size:16px;color:var(--cyan);margin-left:4px;font-family:"PingFang SC","Microsoft YaHei",sans-serif;}
.metric-label{margin-top:10px;font-size:12px;color:var(--muted);line-height:1.7;}

/* ---------- 解读方法 ---------- */
.method-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line);}
.method{padding:32px 28px 8px;border-left:1px solid var(--line);}
.method:first-child{border-left:0;padding-left:0;}
.method-num{
  font-family:"Noto Serif SC","Songti SC",serif;font-size:44px;line-height:1;
  color:var(--cyan);opacity:.9;letter-spacing:-0.02em;
}
.method h3{font-size:18px;font-weight:600;color:var(--ink);margin:18px 0 10px;}
.method p{font-size:15px;color:var(--muted);line-height:1.85;max-width:32ch;}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:48px;}
.faq-intro h2{font-family:"Noto Serif SC","Songti SC",serif;font-size:clamp(23px,3vw,32px);line-height:1.3;color:var(--ink);font-weight:600;max-width:14ch;}
.faq-intro p{font-size:13px;color:var(--muted);margin-top:14px;line-height:1.8;max-width:30ch;}
.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 0;font-size:17px;font-weight:500;color:var(--ink);
  cursor:pointer;list-style:none;transition:color .18s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--cyan);}
.faq-item summary .sign{
  flex:none;width:20px;height:20px;position:relative;color:var(--cyan);
}
.faq-item summary .sign::before,
.faq-item summary .sign::after{
  content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:1px;
  transform:translate(-50%,-50%);transition:transform .28s var(--ease),opacity .28s var(--ease);
}
.faq-item summary .sign::before{width:14px;height:2px;}
.faq-item summary .sign::after{width:2px;height:14px;}
.faq-item[open] summary .sign::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-answer{padding:0 40px 24px 0;font-size:15px;color:var(--muted);line-height:1.9;}
.faq-answer strong{color:var(--ink);font-weight:600;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;background:var(--ink);color:#EAF1ED;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.06) 0 1px,transparent 1px 46px),
                   repeating-linear-gradient(25deg,rgba(255,255,255,.05) 0 1px,transparent 1px 62px);
  pointer-events:none;
}
.cta-inner{position:relative;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:32px;padding:96px 0;}
.cta-copy h2{
  font-family:"Noto Serif SC","Songti SC",serif;font-size:clamp(24px,3.2vw,34px);
  line-height:1.3;font-weight:600;color:#F7F5F0;max-width:20ch;letter-spacing:-0.01em;
}
.cta-copy p{margin-top:14px;font-size:15px;color:#B9CCC5;max-width:34ch;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-sm);border:1px solid transparent;
  font-size:15px;font-weight:500;letter-spacing:.01em;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-primary{background:var(--ochre);color:#FFF7F1;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--ochre-deep);transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;background:var(--ochre-deep);}
.btn-ghost-light{background:transparent;color:#EAF1ED;border-color:rgba(247,245,240,.5);}
.btn-ghost-light:hover{background:rgba(247,245,240,.10);border-color:#F7F5F0;}
.btn-ghost-light:active{transform:translateY(1px);background:rgba(247,245,240,.16);}
.btn-ghost-dark{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost-dark:hover{background:var(--ink);color:#F7F5F0;}
.btn-ghost-dark:active{transform:translateY(1px);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg);border-top:1px solid var(--line);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;}
.footer-desc{margin-top:16px;font-size:13px;color:var(--muted);line-height:1.85;max-width:34ch;}
.footer-title{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:16px;letter-spacing:.01em;}
.footer-list li{margin-bottom:10px;}
.footer-list a{font-size:14px;color:var(--muted);position:relative;display:inline-block;}
.footer-list a::after{
  content:"";position:absolute;left:0;bottom:-1px;width:100%;height:1px;background:var(--cyan);
  transform:scaleX(0);transform-origin:left;transition:transform .18s var(--ease);
}
.footer-list a:hover{color:var(--ink);}
.footer-list a:hover::after{transform:scaleX(1);}
.footer-info{font-size:13px;color:var(--muted);line-height:2;}
.footer-info strong{color:var(--ink);font-weight:600;}
.footer-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:12px;color:var(--muted);
}
.footer-bottom a{color:var(--muted);border-bottom:1px solid rgba(93,99,94,.35);}
.footer-bottom a:hover{color:var(--cyan);border-bottom-color:var(--cyan);}

/* ---------- 入场动画 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .48s var(--ease),transform .48s var(--ease);}
.reveal.is-in{opacity:1;transform:translateY(0);}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .obs-grid{grid-template-columns:1fr;}
  .faq-grid{grid-template-columns:1fr;gap:24px;}
  .faq-intro p{max-width:48ch;}
  .metric-band{grid-template-columns:repeat(3,1fr);}
}
@media (max-width:860px){
  .hot-words{display:none;}
  .search-box{width:170px;}
}
@media (max-width:768px){
  .menu-toggle{display:flex;}
  .brand-tools .search-box{display:none;}
  .channel-row{display:none;}
  .site-header.is-scrolled .brand-row{height:56px;}
  .section-head{margin-bottom:28px;}
  .metric-band{grid-template-columns:1fr;padding:8px 0;}
  .metric{border-left:0;border-top:1px solid var(--line);padding:20px 0;}
  .metric:first-child{border-top:0;}
  .method-grid{grid-template-columns:1fr;}
  .method{border-left:0;border-top:1px solid var(--line);padding:24px 0;}
  .method:first-child{border-top:0;padding-top:24px;}
  .method p{max-width:none;}
  .cta-inner{padding:56px 0;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .faq-answer{padding-right:0;}
  .obs-side{padding:8px 20px;}
}
@media (max-width:520px){
  .cat-hero h1{font-size:28px;}
  .obs-card-body{padding:20px;}
  .obs-card h3{font-size:19px;}
  .cta-actions .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
}