/* roulang page: index */
/* ============ 设计变量 ============ */
:root{
  --ink:#17403C;
  --brand:#2E7D74;
  --accent:#C8712F;
  --accent-dark:#AE5F22;
  --bg:#FAF7F2;
  --surface:#F2EDE5;
  --card:#FFFFFF;
  --deep:#12302C;
  --text:#141A1A;
  --text-2:#5A6664;
  --text-3:#8E9894;
  --line:#E5DFD5;
  --line-strong:#CFC7BA;
  --r-s:8px;
  --r-m:14px;
  --r-l:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,26,26,.05),0 10px 28px -20px rgba(20,26,26,.22);
  --sh-2:0 2px 6px rgba(20,26,26,.06),0 22px 48px -26px rgba(20,26,26,.26);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:"Noto Sans SC","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--ink);}
button{font:inherit;border:0;background:none;cursor:pointer;color:inherit;}
input{font:inherit;color:inherit;}
h1,h2,h3,h4,h5{font-family:var(--serif);color:var(--ink);margin:0;font-weight:600;letter-spacing:-.3px;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(46,125,116,.28);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(46,125,116,.18);}

/* ============ 布局容器 ============ */
.container,
.grid-container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.grid-container{padding-left:24px;padding-right:24px;}
.section{padding:104px 0;}
.section-tight{padding:72px 0;}
.narrow{max-width:820px;margin:0 auto;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:12px;
  z-index:70;
  padding:0 24px;
}
.nav-shell{
  max-width:1200px;
  margin:0 auto;
  height:68px;
  display:flex;
  align-items:center;
  gap:20px;
  padding:0 18px 0 20px;
  background:rgba(255,255,255,.94);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  box-shadow:var(--sh-1);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  transition:background .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.site-header.is-scrolled .nav-shell{
  background:rgba(250,247,242,.88);
  border-color:var(--line-strong);
  box-shadow:var(--sh-2);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  background:linear-gradient(140deg,var(--brand),var(--ink));
  display:grid;place-items:center;color:#fff;flex:0 0 34px;
}
.brand-mark svg{width:19px;height:19px;}
.brand-text{
  font-size:17px;font-weight:600;color:var(--ink);
  letter-spacing:.2px;white-space:nowrap;font-family:var(--sans);
}
.nav-main{display:flex;align-items:center;gap:26px;margin-left:10px;}
.nav-link{
  position:relative;
  font-size:13.8px;
  letter-spacing:.2px;
  color:var(--text-2);
  padding:6px 0;
  white-space:nowrap;
  transition:color .16s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--ink);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform .2s var(--ease);
}
.nav-link:hover{color:var(--ink);}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:18px;margin-left:auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  height:40px;width:238px;
  padding:0 10px 0 12px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-s);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.nav-search svg{width:15px;height:15px;color:var(--text-3);flex:0 0 15px;}
.nav-search input{
  flex:1;min-width:0;border:0;background:transparent;outline:none;
  font-size:13.5px;color:var(--text);
}
.nav-search input::placeholder{color:var(--text-3);}
.nav-search:focus-within{
  background:#fff;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(46,125,116,.16);
}
.kbd{
  font-size:11px;line-height:1;padding:4px 6px;
  border:1px solid var(--line-strong);border-radius:6px;color:var(--text-3);
  flex:0 0 auto;
}
.nav-quick{font-size:13.8px;color:var(--text-2);white-space:nowrap;}
.nav-quick:hover{color:var(--ink);}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--r-s);
  border:1px solid var(--line);align-items:center;justify-content:center;
}
.nav-toggle span{
  display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative;
  transition:transform .25s var(--ease),background .25s var(--ease);
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
  transition:transform .25s var(--ease),top .25s var(--ease);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle.is-open span{background:transparent;}
.nav-toggle.is-open span::before{top:0;transform:rotate(45deg);}
.nav-toggle.is-open span::after{top:0;transform:rotate(-45deg);}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;z-index:88;
  background:rgba(18,48,44,.42);
  opacity:0;pointer-events:none;
  transition:opacity .3s var(--ease);
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:92;
  width:min(360px,86vw);
  background:var(--card);
  border-radius:var(--r-l) 0 0 var(--r-l);
  box-shadow:-18px 0 48px -28px rgba(20,26,26,.4);
  padding:24px 20px 32px;
  display:flex;flex-direction:column;
  overflow-y:auto;
  transform:translateX(105%);
  transition:transform .34s var(--ease);
}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:8px;
}
.drawer-title{font-family:var(--serif);font-size:16px;color:var(--ink);}
.drawer-close{width:32px;height:32px;border-radius:var(--r-s);display:grid;place-items:center;color:var(--text-2);border:1px solid var(--line);}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;font-size:15px;color:var(--text);border-bottom:1px solid var(--line);
}
.drawer-link.is-active{color:var(--brand);font-weight:600;}
.drawer-search{
  display:flex;align-items:center;gap:8px;height:46px;margin-top:18px;
  padding:0 12px;background:var(--surface);border:1px solid var(--line);border-radius:10px;
}
.drawer-search input{flex:1;border:0;background:transparent;outline:none;font-size:14px;min-width:0;}
.drawer-cta{margin-top:20px;width:100%;}

/* ============ 按钮组件 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;line-height:1;
  border:1px solid transparent;cursor:pointer;text-align:center;white-space:nowrap;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn svg{width:14px;height:14px;transition:transform .22s var(--ease);}
.btn-primary{background:var(--accent);color:#fff;}
.btn-primary:hover{background:var(--accent-dark);color:#fff;}
.btn-primary:hover svg{transform:translateX(4px);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:#fff;}
.btn-ghost:hover svg{transform:translateX(4px);}
.btn-sm{height:40px;padding:0 22px;font-size:14px;}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;color:var(--brand);background:none;padding:0;height:auto;border-radius:0;
}
.btn-link svg{width:13px;height:13px;transition:transform .2s var(--ease);}
.btn-link:hover{color:var(--ink);text-decoration:underline;text-underline-offset:4px;}
.btn-link:hover svg{transform:translateX(3px);}

/* ============ 首屏 Hero ============ */
.hero{padding:76px 0 0;}
.hero-grid{
  display:grid;grid-template-columns:1fr 1fr;
  gap:60px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:1.6px;color:var(--text-3);
  text-transform:uppercase;margin-bottom:22px;
}
.eyebrow i{display:block;width:1px;height:11px;background:var(--line-strong);}
.hero h1{
  font-size:clamp(34px,4.6vw,58px);
  line-height:1.14;
  letter-spacing:-.5px;
  margin-bottom:22px;
}
.hero .lead{
  font-size:19px;line-height:1.75;color:var(--text-2);
  max-width:30em;margin-bottom:34px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-l);box-shadow:var(--sh-2);
}
.hero-veil{
  position:absolute;inset:0;border-radius:var(--r-l);
  background:linear-gradient(180deg,rgba(23,64,60,.14),rgba(23,64,60,.14));
  pointer-events:none;
}
.hero-float{
  position:absolute;right:-14px;bottom:-26px;width:258px;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-m);box-shadow:var(--sh-2);padding:24px;
}
.hero-float-num{
  font-family:var(--serif);font-size:28px;line-height:1.1;color:var(--ink);margin-bottom:6px;
}
.hero-float-label{font-size:13.5px;color:var(--text-2);line-height:1.7;margin-bottom:14px;}
.hero-float-tags{display:flex;flex-wrap:wrap;gap:8px;}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-block;padding:4px 12px;border-radius:var(--r-pill);
  background:var(--surface);color:var(--ink);
  font-size:12.5px;line-height:1.6;white-space:nowrap;
}
.badge-line{
  background:transparent;border:1px solid var(--line-strong);color:var(--text-2);
}

/* ============ 信任条 ============ */
.trust{margin-top:72px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.trust-list{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:16px 32px;padding:26px 0;
}
.trust-item{
  font-family:var(--serif);font-size:14.5px;letter-spacing:.6px;
  color:var(--ink);opacity:.55;transition:opacity .25s var(--ease);
}
.trust-item:hover{opacity:.9;}

/* ============ 板块标题 ============ */
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:48px;
}
.section-head h2{font-size:clamp(26px,3vw,38px);line-height:1.22;}
.section-head p{font-size:15.5px;color:var(--text-2);margin-top:10px;max-width:42em;}

/* ============ 品牌主张长条目 ============ */
.claim{display:grid;grid-template-columns:4fr 7fr;gap:88px;}
.claim-sticky{position:sticky;top:120px;align-self:start;}
.claim-sticky h2{font-size:clamp(26px,3vw,36px);line-height:1.25;margin-bottom:16px;}
.claim-sticky p{font-size:15.5px;color:var(--text-2);}
.claim-item{
  display:grid;grid-template-columns:64px 1fr;gap:20px;
  padding:32px 0;border-top:1px solid var(--line);
}
.claim-item:last-child{border-bottom:1px solid var(--line);}
.claim-num{
  font-family:var(--serif);font-size:32px;line-height:1;color:var(--brand);opacity:.35;
}
.claim-item h3{font-size:22px;line-height:1.35;margin-bottom:10px;}
.claim-item p{font-size:15.5px;color:var(--text-2);}

/* ============ 理念图文 ============ */
.story{display:grid;grid-template-columns:5fr 6fr;gap:72px;align-items:center;}
.story-frame{
  padding:8px;background:#fff;border:1px solid var(--line);border-radius:var(--r-m);
  box-shadow:var(--sh-1);
}
.story-frame img{aspect-ratio:4/3;object-fit:cover;border-radius:calc(var(--r-m) - 4px);width:100%;}
.story-body h2{font-size:clamp(26px,3vw,36px);line-height:1.25;margin-bottom:22px;}
.story-body p{font-size:16px;color:var(--text-2);margin-bottom:18px;}
.story-body p:last-of-type{margin-bottom:26px;}

/* ============ 卡片 ============ */
.card{
  display:block;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-m);box-shadow:var(--sh-1);overflow:hidden;color:inherit;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--line-strong);color:inherit;}
.card-cover{overflow:hidden;background:var(--surface);}
.card-cover img{width:100%;object-fit:cover;transition:transform .6s var(--ease);}
.card:hover .card-cover img{transform:scale(1.03);}
.card-cover.is-16-9 img{aspect-ratio:16/9;}
.card-cover.is-4-3 img{aspect-ratio:4/3;}
.card-body{padding:28px;}
.card-body h3{font-size:21px;line-height:1.4;margin:14px 0 10px;transition:color .2s var(--ease);}
.card:hover .card-body h3{color:var(--brand);}
.card-body p{font-size:15px;color:var(--text-2);}
.card-meta{
  display:flex;align-items:center;gap:10px;
  font-size:13px;color:var(--text-3);margin-top:16px;
}
.card-horizontal{
  display:grid;grid-template-columns:132px 1fr;gap:20px;
  padding:20px;align-items:center;
}
.card-horizontal .card-cover img{height:100%;min-height:110px;aspect-ratio:1/1;}
.card-horizontal h3{font-size:17px;line-height:1.5;margin:8px 0 0;}

/* ============ 精选内容 ============ */
.feature-grid{display:grid;grid-template-columns:7fr 5fr;gap:32px;}
.feature-sub{display:grid;gap:32px;align-content:start;}

/* ============ 最新信息（CMS 列表） ============ */
.news-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px 28px;}
.news-card{
  display:flex;gap:18px;align-items:flex-start;
  padding:18px;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-m);
  box-shadow:var(--sh-1);color:inherit;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--line-strong);color:inherit;}
.news-thumb{
  width:88px;height:88px;flex:0 0 88px;border-radius:var(--r-s);
  overflow:hidden;background:var(--surface);
}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease);}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-body{min-width:0;flex:1;}
.news-body h3{
  font-size:17px;line-height:1.5;margin:0 0 8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s var(--ease);
}
.news-card:hover .news-body h3{color:var(--brand);}
.news-body p{
  font-size:14px;color:var(--text-2);line-height:1.7;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3);}
.news-foot{display:flex;justify-content:center;margin-top:44px;}
.cms-empty{
  grid-column:1 / -1;
  min-height:96px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:18px;padding:56px 24px;text-align:center;
  border:1px dashed var(--line-strong);border-radius:var(--r-m);background:var(--card);
}
.cms-empty svg{width:38px;height:38px;color:var(--line-strong);}
.cms-empty p{font-size:15px;color:var(--text-2);}

/* ============ FAQ ============ */
.faq-accordion{border-top:1px solid var(--line);list-style:none;margin:0;padding:0;}
.accordion-item{border-bottom:1px solid var(--line);}
.accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  width:100%;min-height:64px;padding:20px 0;
  font-family:var(--sans);font-size:16.5px;font-weight:500;color:var(--ink);
  text-align:left;transition:color .2s var(--ease);
}
.accordion-title:hover{color:var(--brand);}
.accordion-title .arrow{
  flex:0 0 20px;width:20px;height:20px;color:var(--brand);
  transition:transform .3s var(--ease);
}
.accordion-item.is-open .accordion-title .arrow{transform:rotate(180deg);}
.accordion-content{
  display:none;padding:0 0 24px;max-width:820px;
  font-size:15.5px;line-height:1.85;color:var(--text-2);
}
.accordion-item.is-open .accordion-content{display:block;}

/* ============ 订阅 CTA ============ */
.cta-band{
  background:var(--deep);
  color:rgba(255,255,255,.78);
  border-top:2px solid var(--accent);
  padding:64px 0;
}
.cta-inner{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.cta-band h2{color:#fff;font-size:clamp(24px,2.6vw,32px);line-height:1.3;margin-bottom:12px;}
.cta-band p{font-size:15.5px;line-height:1.8;color:rgba(255,255,255,.72);}
.cta-form{display:flex;gap:12px;}
.cta-form input{
  flex:1;min-width:0;height:46px;padding:0 16px;
  background:#fff;border:1px solid transparent;border-radius:10px;
  font-size:15px;color:var(--text);outline:none;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.cta-form input::placeholder{color:var(--text-3);}
.cta-form input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(200,113,47,.22);}
.cta-note{font-size:12.5px;color:rgba(255,255,255,.5);margin-top:14px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:rgba(255,255,255,.78);padding:64px 0 0;}
.footer-top{
  display:flex;align-items:center;gap:14px;
  padding-bottom:32px;border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand-mark{
  width:34px;height:34px;border-radius:11px;flex:0 0 34px;
  background:rgba(255,255,255,.1);display:grid;place-items:center;color:#fff;
}
.footer-brand-mark svg{width:19px;height:19px;}
.footer-brand-text{font-size:17px;font-weight:600;color:#fff;}
.footer-brand-desc{font-size:13.5px;color:rgba(255,255,255,.6);margin-left:12px;}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;padding:48px 0;
  border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-col h4{
  color:#fff;font-family:var(--sans);font-size:14px;font-weight:600;
  letter-spacing:.4px;margin-bottom:18px;
}
.footer-col li{margin-bottom:12px;}
.footer-col a{
  font-size:14px;color:rgba(255,255,255,.72);
  display:inline-block;
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-col a:hover{color:var(--accent);transform:translateX(2px);}
.footer-col p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.72);}
.footer-contact{padding:32px 0;border-bottom:1px solid rgba(255,255,255,.1);display:flex;flex-wrap:wrap;gap:16px 48px;}
.footer-contact span{font-size:13.5px;color:rgba(255,255,255,.6);}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:14px;padding:26px 0 34px;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.6);}
.footer-bottom a:hover{color:var(--accent);}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .42s var(--ease),transform .42s var(--ease);}
.reveal.is-visible{opacity:1;transform:translateY(0);}

/* ============ 响应式：平板 ============ */
@media (max-width:1023px){
  .section{padding:80px 0;}
  .section-tight{padding:60px 0;}
  .nav-main,.nav-search,.nav-quick{display:none;}
  .nav-toggle{display:flex;}
  .nav-shell{height:62px;padding:0 12px 0 16px;}
  .hero{padding:52px 0 0;}
  .hero-grid{grid-template-columns:1fr;gap:44px;}
  .hero-float{position:static;width:100%;margin-top:18px;right:auto;bottom:auto;}
  .hero-veil{display:none;}
  .hero-visual img{aspect-ratio:16/9;}
  .claim{grid-template-columns:1fr;gap:36px;}
  .claim-sticky{position:static;}
  .story{grid-template-columns:1fr;gap:36px;}
  .feature-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .cta-inner{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .trust-list{justify-content:flex-start;gap:14px 28px;}
  .trust{margin-top:52px;}
}

/* ============ 响应式：手机 ============ */
@media (max-width:639px){
  .section{padding:60px 0;}
  .container,.grid-container{padding-left:18px;padding-right:18px;}
  .site-header{padding:0 12px;top:8px;}
  .brand-text{font-size:15.5px;}
  .hero h1{font-size:29px;line-height:1.22;}
  .hero .lead{font-size:16.5px;}
  .hero-actions{flex-direction:column;gap:12px;}
  .hero-actions .btn{width:100%;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px;}
  .claim-item{grid-template-columns:46px 1fr;gap:14px;padding:26px 0;}
  .claim-num{font-size:26px;}
  .claim-item h3{font-size:19px;}
  .card-body{padding:20px;}
  .card-horizontal{grid-template-columns:1fr;gap:16px;}
  .card-horizontal .card-cover img{aspect-ratio:16/9;min-height:0;}
  .news-card{padding:14px;gap:14px;}
  .news-thumb{width:72px;height:72px;flex:0 0 72px;}
  .news-body h3{font-size:15.5px;}
  .news-body p{display:none;}
  .cta-band{padding:48px 0;}
  .cta-form{flex-direction:column;gap:12px;}
  .cta-form .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-top{flex-wrap:wrap;}
  .footer-brand-desc{margin-left:0;width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .accordion-title{font-size:15.5px;}
  .story-body p{font-size:15.5px;}
}

/* ============ 减少动效 ============ */
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: article */
:root{
  --ink:#17403C;
  --brand:#2E7D74;
  --accent:#C8712F;
  --bg:#FAF7F2;
  --surface:#F2EDE5;
  --card:#FFFFFF;
  --deep:#12302C;
  --text:#141A1A;
  --text-2:#5A6664;
  --text-3:#8E9894;
  --line:#E5DFD5;
  --line-strong:#CFC7BA;
  --r-s:8px;
  --r-m:14px;
  --r-l:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,26,26,.05),0 10px 28px -20px rgba(20,26,26,.22);
  --sh-2:0 2px 6px rgba(20,26,26,.06),0 22px 48px -26px rgba(20,26,26,.26);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:"Noto Sans SC","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.85;
  font-weight:400;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease,opacity .18s ease;}
a:hover{color:var(--ink);}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;font-family:var(--serif);color:var(--ink);font-weight:600;letter-spacing:-.3px;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(46,125,116,.28);border-radius:var(--r-s);}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.container-narrow{width:100%;max-width:760px;margin:0 auto;padding:0 24px;}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  padding:12px 0 0;
  transition:padding .25s ease;
}
.nav-shell{
  max-width:1200px;margin:0 auto;
  padding:0 18px;
  background:rgba(250,247,242,.72);
  border:1px solid transparent;
  border-radius:var(--r-l);
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-scrolled .nav-shell{
  background:rgba(250,247,242,.86);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-color:var(--line);
  box-shadow:var(--sh-1);
}
.nav-inner{
  display:flex;align-items:center;gap:24px;
  height:68px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;
  display:grid;place-items:center;
  border-radius:12px;
  background:linear-gradient(140deg,rgba(46,125,116,.16),rgba(23,64,60,.08));
  color:var(--brand);
}
.brand-mark svg{width:21px;height:21px;}
.brand-text{font-family:var(--serif);font-size:17px;font-weight:600;letter-spacing:-.2px;white-space:nowrap;}
.nav-main{display:flex;align-items:center;gap:4px;margin-left:12px;}
.nav-link{
  position:relative;
  padding:8px 12px;
  font-size:13.5px;letter-spacing:.2px;
  color:var(--text-2);
  border-radius:var(--r-s);
  transition:color .16s ease,background .16s ease;
}
.nav-link:hover{color:var(--ink);background:rgba(23,64,60,.05);}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;
  height:2px;border-radius:2px;background:var(--ink);
}
.nav-actions{display:flex;align-items:center;gap:18px;margin-left:auto;}
.cmd-search{
  display:flex;align-items:center;gap:8px;
  width:240px;height:40px;
  padding:0 12px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.cmd-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(46,125,116,.16);}
.cmd-search svg{width:15px;height:15px;flex:0 0 15px;color:var(--text-3);}
.cmd-search input{
  border:0;outline:none;background:transparent;
  width:100%;font-size:13.5px;color:var(--text);
}
.cmd-search input::placeholder{color:var(--text-3);}
.kbd{
  font-size:11px;line-height:1;color:var(--text-3);
  border:1px solid var(--line);border-radius:6px;
  padding:4px 6px;flex:0 0 auto;background:var(--surface);
}
.nav-quiet{font-size:13.5px;color:var(--text-2);white-space:nowrap;}
.nav-quiet:hover{color:var(--ink);}
.nav-cta{
  display:inline-flex;align-items:center;gap:6px;
  height:40px;padding:0 22px;
  background:var(--accent);color:#fff;
  border-radius:var(--r-pill);
  font-size:13.5px;font-weight:600;
  transition:background .18s ease,transform .18s ease;
}
.nav-cta:hover{background:#b8641f;color:#fff;}
.nav-cta svg{width:14px;height:14px;transition:transform .18s ease;}
.nav-cta:hover svg{transform:translateX(4px);}
.nav-toggle{
  display:none;
  width:42px;height:42px;border:1px solid var(--line);border-radius:var(--r-s);
  background:var(--card);cursor:pointer;
  padding:0;place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.nav-toggle span+span{margin-top:5px;}
.nav-toggle.is-open span:first-child{transform:translateY(3.5px) rotate(45deg);}
.nav-toggle.is-open span:last-child{transform:translateY(-3.5px) rotate(-45deg);}
.nav-drawer{
  display:none;position:fixed;inset:0;z-index:70;
  background:rgba(18,48,44,.36);
}
.nav-drawer.is-open{display:block;}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;
  width:min(86vw,340px);
  background:var(--card);
  border-top-left-radius:var(--r-l);
  border-bottom-left-radius:var(--r-l);
  padding:26px 22px;
  box-shadow:var(--sh-2);
  overflow-y:auto;
}
.drawer-panel .drawer-title{font-family:var(--serif);font-size:15px;color:var(--text-3);margin-bottom:10px;}
.drawer-link{
  display:flex;align-items:center;
  height:48px;font-size:15px;color:var(--text);
  border-bottom:1px solid var(--line);
}
.drawer-link:hover{color:var(--brand);}
.drawer-search{margin:18px 0 8px;}
.drawer-cta{margin-top:18px;width:100%;justify-content:center;height:46px;}

/* ---------- article layout ---------- */
.page-head-space{height:24px;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:6px;
  font-size:12.5px;color:var(--text-3);
  padding:18px 0 0;
}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--line-strong);}
.breadcrumb .current{color:var(--text-2);}

.article-head{padding:34px 0 0;text-align:left;}
.article-head-inner{max-width:820px;margin:0 auto;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.28em;color:var(--brand);
  text-transform:uppercase;margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brand);opacity:.6;}
.article-title{
  font-size:clamp(30px,4vw,46px);
  line-height:1.2;
  letter-spacing:-.6px;
  margin-bottom:20px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 12px;
  font-size:14px;color:var(--text-3);
}
.badge{
  display:inline-flex;align-items:center;
  padding:4px 12px;
  background:var(--surface);color:var(--ink);
  border-radius:var(--r-pill);
  font-size:12.5px;letter-spacing:.02em;
}
.meta-dot{color:var(--line-strong);}
.rule{height:1px;background:var(--line);max-width:820px;margin:30px auto 0;}

.article-body{padding:44px 0 8px;}
.prose{max-width:760px;margin:0 auto;font-size:16.5px;line-height:1.85;color:var(--text);}
.prose p{margin:0 0 22px;}
.prose h2{
  font-size:28px;line-height:1.3;
  margin:48px 0 16px;padding-left:14px;
  border-left:3px solid var(--brand);
}
.prose h3{font-size:21px;line-height:1.4;margin:34px 0 12px;}
.prose h4{font-size:17.5px;margin:26px 0 10px;}
.prose ul,.prose ol{margin:0 0 22px;padding-left:2px;}
.prose li{position:relative;padding-left:20px;margin-bottom:10px;line-height:1.8;}
.prose ul li::before{
  content:"";position:absolute;left:2px;top:.72em;
  width:6px;height:6px;border-radius:50%;background:var(--brand);
}
.prose ol{counter-reset:prose-ol;}
.prose ol li{counter-increment:prose-ol;padding-left:26px;}
.prose ol li::before{
  content:counter(prose-ol);
  position:absolute;left:0;top:0;
  font-family:var(--serif);font-size:14px;color:var(--brand);
  font-weight:600;
}
.prose blockquote{
  margin:0 0 24px;padding:24px 24px 24px 26px;
  background:var(--surface);
  border-left:3px solid var(--brand);
  border-radius:0 var(--r-m) var(--r-m) 0;
  color:var(--text-2);
}
.prose blockquote p:last-child{margin-bottom:0;}
.prose img{border-radius:var(--r-m);margin:26px 0;}
.prose figure{margin:26px 0;}
.prose figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px;}
.prose table{
  width:100%;border-collapse:collapse;margin:24px 0;
  font-size:15px;
}
.prose th,.prose td{
  border-bottom:1px solid var(--line);
  padding:12px 14px;text-align:left;
}
.prose th{background:var(--surface);color:var(--ink);font-weight:600;}
.prose a{color:var(--brand);border-bottom:1px solid rgba(46,125,116,.3);}
.prose a:hover{color:var(--ink);border-bottom-color:var(--ink);}
.prose hr{border:0;height:1px;background:var(--line);margin:34px 0;}
.prose strong{color:var(--ink);}

.empty-state{
  max-width:760px;margin:0 auto;text-align:center;
  padding:56px 24px 60px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-m);
  box-shadow:var(--sh-1);
}
.empty-state svg{width:44px;height:44px;color:var(--line-strong);margin:0 auto 18px;}
.empty-state h2{font-size:22px;margin-bottom:10px;}
.empty-state p{font-size:15px;color:var(--text-2);margin-bottom:24px;}

.back-row{max-width:760px;margin:36px auto 0;}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  height:44px;padding:0 24px;
  border:1px solid var(--ink);border-radius:var(--r-pill);
  color:var(--ink);font-size:14px;background:transparent;
  transition:background .18s ease,color .18s ease;
}
.btn-ghost:hover{background:var(--ink);color:#fff;}
.btn-ghost svg{width:15px;height:15px;}

/* ---------- related ---------- */
.section{padding:96px 0;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:36px;
}
.section-head h2{font-size:clamp(26px,3vw,34px);line-height:1.22;}
.section-head p{font-size:15px;color:var(--text-2);margin-top:8px;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;color:var(--brand);white-space:nowrap;
}
.text-link svg{width:14px;height:14px;transition:transform .18s ease;}
.text-link:hover{color:var(--ink);text-decoration:underline;}
.text-link:hover svg{transform:translateX(4px);}
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.related-card{
  display:flex;flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-m);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease;
  color:inherit;
}
.related-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);color:inherit;}
.related-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--surface);}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease;}
.related-card:hover .related-thumb img{transform:scale(1.03);}
.related-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.related-body h3{
  font-size:18px;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.related-body p{
  font-size:14px;color:var(--text-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.related-foot{
  margin-top:auto;display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);
}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--deep);
  border-top:2px solid var(--accent);
  color:rgba(255,255,255,.82);
  padding:64px 0;
}
.cta-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.6vw,28px);line-height:1.3;}
.cta-inner p{font-size:15px;margin-top:8px;max-width:560px;}
.btn-primary{
  display:inline-flex;align-items:center;gap:8px;
  height:46px;padding:0 26px;
  background:var(--accent);color:#fff;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:600;
  transition:background .18s ease,transform .18s ease;
}
.btn-primary:hover{background:#b8641f;color:#fff;}
.btn-primary svg{width:15px;height:15px;transition:transform .18s ease;}
.btn-primary:hover svg{transform:translateX(4px);}

/* ---------- footer ---------- */
.site-footer{
  background:var(--deep);
  color:rgba(255,255,255,.78);
  padding:72px 0 28px;
  font-size:14px;
}
.footer-top{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  padding-bottom:30px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand-mark{
  width:34px;height:34px;display:grid;place-items:center;
  border-radius:10px;background:rgba(255,255,255,.08);color:#fff;
}
.footer-brand-mark svg{width:20px;height:20px;}
.footer-brand-text{font-family:var(--serif);font-size:17px;font-weight:600;color:#fff;}
.footer-brand-desc{font-size:13px;color:rgba(255,255,255,.6);}
.footer-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:32px;
  padding:44px 0 36px;
}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-family:var(--sans);letter-spacing:.02em;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{color:rgba(255,255,255,.78);font-size:13.5px;transition:color .16s ease,transform .16s ease;display:inline-block;}
.footer-col a:hover{color:var(--accent);transform:translateX(2px);}
.footer-col p{font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.66);}
.footer-contact{
  display:flex;flex-wrap:wrap;gap:12px 28px;
  padding:20px 0;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(255,255,255,.6);
}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.7);}
.footer-bottom a:hover{color:var(--accent);}

/* ---------- motion ---------- */
.reveal{opacity:0;transform:translateY(14px);}
.reveal.is-in{
  opacity:1;transform:none;
  transition:opacity .42s cubic-bezier(.22,.61,.36,1),transform .42s cubic-bezier(.22,.61,.36,1);
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .nav-main,.cmd-search,.nav-quiet{display:none;}
  .nav-toggle{display:grid;}
  .nav-actions{gap:12px;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
  .section{padding:80px 0;}
}
@media (max-width:639px){
  body{font-size:16px;}
  .container,.container-narrow{padding:0 18px;}
  .nav-shell{padding:0 12px;}
  .nav-inner{height:62px;gap:12px;}
  .brand-text{font-size:15px;}
  .nav-cta{display:none;}
  .page-head-space{height:10px;}
  .article-head{padding:24px 0 0;}
  .article-title{font-size:27px;line-height:1.28;}
  .article-body{padding:32px 0 4px;}
  .prose{font-size:16px;line-height:1.9;}
  .prose img{border-radius:var(--r-s);}
  .prose h2{font-size:23px;margin:38px 0 14px;}
  .prose h3{font-size:19px;}
  .section{padding:60px 0;}
  .related-grid{grid-template-columns:minmax(0,1fr);}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .btn-primary{width:100%;justify-content:center;}
  .btn-ghost{width:100%;justify-content:center;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:26px;}
  .site-footer{padding:56px 0 24px;}
}

/* roulang page: category1 */
:root{
  --ink:#17403C;
  --brand:#2E7D74;
  --accent:#C8712F;
  --bg:#FAF7F2;
  --surface:#F2EDE5;
  --card:#FFFFFF;
  --deep:#12302C;
  --text:#141A1A;
  --text-2:#5A6664;
  --text-3:#8E9894;
  --line:#E5DFD5;
  --line-strong:#CFC7BA;
  --r-s:8px;
  --r-m:14px;
  --r-l:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,26,26,.05),0 10px 28px -20px rgba(20,26,26,.22);
  --sh-2:0 2px 6px rgba(20,26,26,.06),0 22px 48px -26px rgba(20,26,26,.26);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:"Noto Sans SC","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --section-y:104px;
}

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

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

body{
  margin:0;
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}

img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--ink)}
ul,ol{margin:0;padding:0}
p{margin:0}
h1,h2,h3,h4{font-family:var(--serif);color:var(--ink);font-weight:600;margin:0;letter-spacing:-.2px}
h1{font-size:48px;line-height:1.14}
h2{font-size:36px;line-height:1.22}
h3{font-size:22px;line-height:1.35}
h4{font-size:16px;line-height:1.4}
button,input{font-family:inherit}
:focus-visible{outline:3px solid rgba(46,125,116,.28);outline-offset:2px}

/* ---------- 布局容器 ---------- */
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:var(--section-y) 0}
.section-tight{padding:72px 0}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:90;
  padding:12px 24px 10px;
  background:linear-gradient(180deg,var(--bg) 0%,var(--bg) 68%,rgba(250,247,242,0) 100%);
  transition:background .3s ease,border-color .3s ease,padding .3s ease;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(250,247,242,.86);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom-color:var(--line);
}
.header-inner{
  max-width:1200px;
  margin:0 auto;
  height:68px;
  display:flex;
  align-items:center;
  gap:22px;
  padding:0 18px 0 20px;
  background:rgba(255,255,255,.94);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  box-shadow:var(--sh-1);
}
.is-scrolled .header-inner{background:rgba(255,255,255,.72)}
.brand{display:flex;align-items:center;gap:10px;flex:none;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand-mark{width:34px;height:34px;display:flex;align-items:center;justify-content:center;border-radius:11px;background:linear-gradient(150deg,rgba(46,125,116,.14),rgba(23,64,60,.06));color:var(--brand)}
.brand-mark svg{width:20px;height:20px}
.brand-text{font-size:17px;font-weight:600;letter-spacing:.2px;white-space:nowrap}
.nav-main{display:flex;align-items:center;gap:24px;margin-left:6px}
.nav-link{
  position:relative;
  font-size:14px;
  color:var(--text-2);
  letter-spacing:.2px;
  padding:6px 0;
  transition:color .16s ease;
  white-space:nowrap;
}
.nav-link:hover{color:var(--ink)}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
}
.header-right{display:flex;align-items:center;gap:18px;margin-left:auto}
.command-search{
  display:flex;
  align-items:center;
  gap:8px;
  width:236px;
  height:40px;
  padding:0 10px 0 12px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:12px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.command-search svg{width:16px;height:16px;color:var(--text-3);flex:none}
.command-search input{
  flex:1;
  min-width:0;
  height:auto;
  margin:0;
  padding:0;
  border:0;
  background:transparent;
  box-shadow:none;
  font-size:13.5px;
  color:var(--text);
}
.command-search input::placeholder{color:var(--text-3)}
.command-search input:focus{outline:none;box-shadow:none}
.command-search:focus-within{border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(46,125,116,.16)}
.kbd{
  flex:none;
  font-size:11px;
  line-height:1.5;
  color:var(--text-3);
  border:1px solid var(--line-strong);
  border-radius:6px;
  padding:0 5px;
}
.header-quick{font-size:14px;color:var(--text-2);white-space:nowrap}
.header-quick:hover{color:var(--ink)}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 26px;
  border:1px solid transparent;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:500;
  line-height:1;
  cursor:pointer;
  white-space:nowrap;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 12px 26px -16px rgba(200,113,47,.85)}
.btn-primary:hover{background:#b8631f;color:#fff}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{background:var(--surface);color:var(--ink)}
.btn-sm{height:40px;padding:0 22px;font-size:14px}
.btn .arrow{transition:transform .22s ease}
.btn:hover .arrow{transform:translateX(4px)}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:500;color:var(--brand)}
.text-link .arrow{transition:transform .22s ease}
.text-link:hover{color:var(--ink);text-decoration:underline;text-underline-offset:4px}
.text-link:hover .arrow{transform:translateX(4px)}

/* 移动端汉堡与抽屉 */
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--line);
  border-radius:12px;
  background:#fff;
  padding:0;
  cursor:pointer;
  position:relative;
}
.nav-toggle span{
  position:absolute;
  left:11px;
  width:20px;height:2px;
  background:var(--ink);
  border-radius:2px;
  transition:transform .28s ease,opacity .2s ease;
}
.nav-toggle span:nth-child(1){top:16px}
.nav-toggle span:nth-child(2){top:23px}
.nav-toggle.is-active span:nth-child(1){transform:translateY(3.5px) rotate(45deg)}
.nav-toggle.is-active span:nth-child(2){transform:translateY(-3.5px) rotate(-45deg)}

.drawer-mask{
  position:fixed;inset:0;
  background:rgba(18,48,44,.42);
  opacity:0;visibility:hidden;
  transition:opacity .28s ease,visibility .28s ease;
  z-index:95;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;
  top:0;right:0;
  width:min(340px,86vw);
  height:100%;
  background:var(--card);
  border-radius:var(--r-l) 0 0 var(--r-l);
  box-shadow:var(--sh-2);
  transform:translateX(102%);
  transition:transform .32s cubic-bezier(.22,.61,.36,1);
  z-index:96;
  padding:26px 22px;
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-title{font-family:var(--serif);font-size:15px;color:var(--text-3);margin-bottom:12px}
.drawer-nav a{
  display:flex;
  align-items:center;
  height:48px;
  font-size:15px;
  color:var(--ink);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.is-active{color:var(--brand);font-weight:600}
.drawer-search{
  display:flex;align-items:center;gap:8px;
  height:44px;
  margin:20px 0 18px;
  padding:0 12px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:12px;
}
.drawer-search input{border:0;background:transparent;box-shadow:none;margin:0;padding:0;height:auto;font-size:14px;color:var(--text)}
.drawer-search input:focus{outline:none;box-shadow:none}
.drawer-search svg{width:16px;height:16px;color:var(--text-3)}
.mobile-drawer .btn{width:100%}

/* ---------- 分类头横幅 ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--deep);border-radius:0 0 var(--r-l) var(--r-l)}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  opacity:.62;
}
.page-hero-overlay{position:absolute;inset:0;background:linear-gradient(115deg,rgba(18,48,44,.9) 0%,rgba(23,64,60,.68) 52%,rgba(18,48,44,.78) 100%)}
.page-hero-inner{position:relative;z-index:2;padding-top:52px;padding-bottom:66px;color:#fff;min-height:360px;display:flex;flex-direction:column;justify-content:center}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:12.5px;color:rgba(255,255,255,.6);margin-bottom:26px}
.breadcrumb a{color:rgba(255,255,255,.78)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{color:rgba(255,255,255,.35)}
.breadcrumb .current{color:#fff}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:1.2px;
  color:var(--accent);
  text-transform:none;
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--accent);display:block}
.page-hero .eyebrow{color:#E7A26A}
.page-hero .eyebrow::before{background:#E7A26A}
.page-hero h1{color:#fff;font-size:46px;max-width:900px;letter-spacing:-.6px}
.page-hero-sub{margin-top:18px;font-size:19px;line-height:1.75;color:rgba(255,255,255,.82);max-width:660px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.hero-tag{
  display:inline-flex;align-items:center;
  height:30px;padding:0 14px;
  border-radius:var(--r-pill);
  font-size:13px;
  color:rgba(255,255,255,.9);
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.2);
  backdrop-filter:blur(4px);
}

/* ---------- 状态数据带 ---------- */
.stat-band{background:var(--card);border-bottom:1px solid var(--line)}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat-item{padding:34px 0 34px 32px;position:relative}
.stat-item:first-child{padding-left:0}
.stat-item + .stat-item::before{
  content:"";position:absolute;left:0;top:34px;bottom:34px;width:1px;background:var(--line);
}
.stat-num{display:block;font-family:var(--serif);font-size:34px;line-height:1.1;color:var(--ink);letter-spacing:-.5px}
.stat-num em{font-style:normal;font-size:15px;color:var(--text-3);margin-left:4px;font-family:var(--sans)}
.stat-label{display:block;margin-top:8px;font-size:13.5px;color:var(--text-2)}

/* ---------- 板块标题 ---------- */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:44px}
.section-head h2{max-width:640px}
.eyebrow-sm{
  display:block;
  font-size:12.5px;
  letter-spacing:1.2px;
  color:var(--brand);
  margin-bottom:14px;
}
.lead{font-size:17px;line-height:1.8;color:var(--text-2);margin-top:16px;max-width:460px}

/* ---------- 时间线 ---------- */
.section-timeline{background:var(--bg)}
.sticky-col{position:sticky;top:112px;padding-right:20px}
.timeline{list-style:none;margin:0;padding:0 0 0 28px;border-left:1px solid var(--line)}
.timeline-item{position:relative;padding-bottom:38px}
.timeline-item:last-child{padding-bottom:0}
.timeline-item::before{
  content:"";
  position:absolute;
  left:-32.5px;
  top:8px;
  width:9px;height:9px;
  border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 0 4px rgba(46,125,116,.13);
}
.timeline-meta{display:flex;align-items:center;gap:12px;margin-bottom:8px}
.timeline-date{font-family:var(--serif);font-size:13px;letter-spacing:.6px;color:var(--brand)}
.badge{
  display:inline-flex;align-items:center;
  height:24px;padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--surface);
  color:var(--ink);
  font-size:12.5px;
  font-weight:500;
  letter-spacing:.2px;
}
.timeline-item h3{font-size:21px;margin-bottom:8px}
.timeline-item p{font-size:15.5px;line-height:1.8;color:var(--text-2);max-width:620px}

/* ---------- 内容卡片 ---------- */
.section-featured{background:var(--surface)}
.feature-row{align-items:stretch}
.side-stack{display:flex;flex-direction:column;gap:24px;height:100%}
.content-card{
  display:flex;
  flex-direction:column;
  height:100%;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-m);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:transform .3s ease,box-shadow .3s ease;
}
.content-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.card-media{position:relative;overflow:hidden;background:var(--surface)}
.card-media.ratio-16-9{aspect-ratio:16/9}
.card-media.ratio-4-3{aspect-ratio:4/3}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.content-card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:26px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-body h3{font-size:21px;line-height:1.4}
.card-body .excerpt{font-size:15px;line-height:1.8;color:var(--text-2)}
.card-meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3);padding-top:6px}
.card-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--line-strong)}
.card-horizontal{flex-direction:row;align-items:stretch;height:auto}
.card-horizontal .card-thumb{flex:none;width:128px;overflow:hidden;background:var(--surface)}
.card-horizontal .card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.card-horizontal:hover .card-thumb img{transform:scale(1.04)}
.card-horizontal .card-body{padding:20px;gap:8px}
.card-horizontal .card-body h3{font-size:17px;line-height:1.5}
.card-horizontal .card-meta{padding-top:4px}

/* ---------- 关注要点 ---------- */
.section-points{background:var(--bg)}
.point-list{border-top:1px solid var(--line)}
.point-item{display:flex;gap:22px;padding:26px 0;border-bottom:1px solid var(--line)}
.point-index{
  flex:none;
  font-family:var(--serif);
  font-size:32px;
  line-height:1;
  color:var(--brand);
  opacity:.36;
  min-width:46px;
}
.point-item h3{font-size:19px;margin-bottom:6px}
.point-item p{font-size:15px;line-height:1.8;color:var(--text-2)}
.points-figure{
  position:relative;
  border:1px solid var(--line);
  border-radius:var(--r-m);
  overflow:hidden;
  background:var(--card);
  padding:8px;
  box-shadow:var(--sh-1);
}
.points-figure img{width:100%;border-radius:10px;object-fit:cover;aspect-ratio:4/3}
.points-action{margin-top:26px;display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.points-note{font-size:13.5px;color:var(--text-3)}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--deep);
  border-top:2px solid var(--accent);
  color:#fff;
  padding:66px 0;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:44px;flex-wrap:wrap}
.cta-band h2{color:#fff;font-size:32px}
.cta-band p{margin-top:12px;font-size:16px;line-height:1.8;color:rgba(255,255,255,.72);max-width:520px}
.cta-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.cta-hint{font-size:13.5px;color:rgba(255,255,255,.6)}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--deep);
  color:rgba(255,255,255,.78);
  padding:72px 0 28px;
  font-size:14.5px;
  line-height:1.8;
}
.footer-top{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding-bottom:30px;border-bottom:1px solid rgba(255,255,255,.12)}
.footer-brand-mark{width:34px;height:34px;display:flex;align-items:center;justify-content:center;border-radius:11px;background:rgba(255,255,255,.1);color:#fff}
.footer-brand-mark svg{width:20px;height:20px}
.footer-brand-text{font-family:var(--serif);font-size:18px;color:#fff;letter-spacing:.2px}
.footer-brand-desc{font-size:13.5px;color:rgba(255,255,255,.6);margin-left:6px}
.footer-grid{display:grid;grid-template-columns:1.1fr 1fr 1fr 1.5fr;gap:36px;padding:44px 0 34px}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:18px;font-family:var(--serif)}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:11px}
.footer-col p{font-size:13.5px;color:rgba(255,255,255,.7);line-height:1.9}
.site-footer a{color:rgba(255,255,255,.78);display:inline-block;transition:color .2s ease,transform .2s ease}
.site-footer a:hover{color:var(--accent);transform:translateX(-2px)}
.footer-contact{
  display:flex;flex-wrap:wrap;gap:12px 34px;
  padding:22px 0;
  border-top:1px solid rgba(255,255,255,.12);
  border-bottom:1px solid rgba(255,255,255,.12);
  font-size:13.5px;
  color:rgba(255,255,255,.6);
}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:24px;font-size:13.5px;color:rgba(255,255,255,.55)}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .42s cubic-bezier(.22,.61,.36,1),transform .42s cubic-bezier(.22,.61,.36,1)}
.reveal.is-in{opacity:1;transform:none}
.reveal.d1{transition-delay:.06s}
.reveal.d2{transition-delay:.12s}
.reveal.d3{transition-delay:.18s}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1120px){
  .command-search{width:180px}
  .nav-main{gap:18px}
}

@media screen and (max-width:1023px){
  :root{--section-y:80px}
  .nav-main,.command-search,.header-quick{display:none}
  .nav-toggle{display:block}
  .header-inner{height:62px;padding:0 14px 0 16px}
  .brand-text{font-size:16px}
  .page-hero h1{font-size:38px}
  .page-hero-sub{font-size:17px}
  .page-hero-inner{min-height:320px;padding-top:42px;padding-bottom:52px}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .stat-item{padding:26px 0 26px 24px}
  .stat-item:nth-child(2n+1){padding-left:0}
  .stat-item:nth-child(2n+1)::before{display:none}
  .stat-item:nth-child(2n){border-left:1px solid var(--line)}
  .sticky-col{position:static;padding-right:0;margin-bottom:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .cta-inner{gap:28px}
  .cta-band h2{font-size:27px}
}

@media screen and (max-width:767px){
  body{font-size:16px}
  h2{font-size:27px}
  .section{padding:64px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px}
  .page-hero h1{font-size:31px}
  .page-hero-sub{font-size:16px}
  .page-hero-inner{min-height:auto;padding-top:34px;padding-bottom:44px}
  .hero-tags{gap:8px;margin-top:22px}
  .hero-tag{font-size:12.5px;height:28px;padding:0 12px}
  .btn{width:100%}
  .btn.btn-inline{width:auto}
  .card-body{padding:22px}
  .card-horizontal .card-thumb{width:104px}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding:34px 0 26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .points-figure img{aspect-ratio:16/10}
}

@media screen and (max-width:519px){
  .grid-container{padding-left:18px;padding-right:18px}
  .container{padding:0 18px}
  .site-header{padding:10px 14px 8px}
  .stat-grid{grid-template-columns:1fr}
  .stat-item{padding:20px 0}
  .stat-item + .stat-item{border-left:0;border-top:1px solid var(--line)}
  .stat-item + .stat-item::before{display:none}
  .stat-item:nth-child(2n){border-left:0}
  .stat-num{font-size:29px}
  .timeline{padding-left:22px}
  .timeline-item::before{left:-26.5px}
  .timeline-item h3{font-size:18.5px}
  .point-item{gap:16px}
  .point-index{font-size:26px;min-width:36px}
}

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

/* roulang page: category2 */
:root{
  --ink:#17403C;
  --brand:#2E7D74;
  --accent:#C8712F;
  --bg:#FAF7F2;
  --surface:#F2EDE5;
  --card:#FFFFFF;
  --deep:#12302C;
  --text:#141A1A;
  --text-2:#5A6664;
  --text-3:#8E9894;
  --line:#E5DFD5;
  --line-strong:#CFC7BA;
  --r-s:8px;
  --r-m:14px;
  --r-l:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,26,26,.05),0 10px 28px -20px rgba(20,26,26,.22);
  --sh-2:0 2px 6px rgba(20,26,26,.06),0 22px 48px -26px rgba(20,26,26,.26);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:"Noto Sans SC","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
body.drawer-open{overflow:hidden}
img{display:block;max-width:100%;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--ink)}
button{font-family:inherit}
h1,h2,h3,h4{font-family:var(--serif);color:var(--ink);font-weight:600;margin:0;letter-spacing:-.2px}
p{margin:0 0 18px}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(46,125,116,.28);outline-offset:2px;border-radius:6px}
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px}
@media screen and (min-width:1024px){
  .grid-container{padding-left:24px;padding-right:24px}
}
.reveal{opacity:0;transform:translateY(14px);transition:opacity .42s var(--ease),transform .42s var(--ease)}
.reveal.is-in{opacity:1;transform:translateY(0)}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:80;padding:12px 18px 0}
.nav-shell{
  max-width:1200px;margin:0 auto;height:68px;
  display:flex;align-items:center;gap:24px;
  padding:0 18px 0 22px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-l);
  box-shadow:var(--sh-1);
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-stuck .nav-shell{
  background:rgba(250,247,242,.86);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-color:var(--line-strong);
  box-shadow:var(--sh-2);
}
.brand{display:flex;align-items:center;gap:10px;flex:none;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand-mark{width:30px;height:30px;display:inline-flex;align-items:center;justify-content:center;color:var(--brand)}
.brand-mark svg{width:26px;height:26px}
.brand-name{font-family:var(--serif);font-size:17px;font-weight:600;letter-spacing:-.2px;white-space:nowrap}
.nav-main{display:flex;align-items:center;gap:26px;margin-left:8px}
.nav-link{
  position:relative;color:var(--text-2);font-size:13.8px;letter-spacing:.2px;
  padding:6px 0;transition:color .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--ink);
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-link:hover{color:var(--ink)}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-tools{display:flex;align-items:center;gap:16px;margin-left:auto}
.command-search{
  display:flex;align-items:center;gap:8px;
  width:238px;height:38px;padding:0 10px 0 12px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.command-search:focus-within{border-color:var(--brand);background:var(--card);box-shadow:0 0 0 3px rgba(46,125,116,.16)}
.command-search svg{width:15px;height:15px;color:var(--text-3);flex:none}
.command-search input{
  flex:1;min-width:0;border:0;background:transparent;outline:none;
  font-size:13.5px;color:var(--text);font-family:var(--sans);
}
.command-search input::placeholder{color:var(--text-3)}
.command-search kbd{
  flex:none;font-family:var(--sans);font-size:11px;color:var(--text-3);
  border:1px solid var(--line-strong);border-radius:6px;padding:1px 6px;line-height:1.5;
}
.link-quiet{font-size:13.8px;color:var(--text-2);white-space:nowrap}
.link-quiet:hover{color:var(--ink)}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r-s);
  background:var(--card);cursor:pointer;position:relative;flex:none;
}
.nav-toggle span{
  position:absolute;left:11px;width:18px;height:2px;background:var(--ink);border-radius:2px;
  transition:transform .24s var(--ease),opacity .2s ease;
}
.nav-toggle span:nth-child(1){top:16px}
.nav-toggle span:nth-child(2){top:22px}
.nav-toggle.is-open span:nth-child(1){transform:translateY(3px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){transform:translateY(-3px) rotate(-45deg)}

/* 抽屉 */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);
  background:var(--card);border-left:1px solid var(--line);
  border-radius:var(--r-l) 0 0 var(--r-l);
  box-shadow:var(--sh-2);
  transform:translateX(102%);
  transition:transform .3s var(--ease);
  z-index:90;padding:28px 24px;display:flex;flex-direction:column;gap:6px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-title{font-size:12.5px;letter-spacing:2px;color:var(--text-3);margin-bottom:10px}
.drawer a.drawer-link{
  display:flex;align-items:center;height:48px;color:var(--text);
  font-size:15.5px;border-bottom:1px solid var(--line);
}
.drawer a.drawer-link:hover{color:var(--brand)}
.drawer a.drawer-link.is-active{color:var(--brand);font-weight:600}
.drawer .drawer-search{width:100%;margin:18px 0 14px}
.drawer .btn{width:100%;justify-content:center}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.2px;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  text-decoration:none;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 24px -16px rgba(200,113,47,.9)}
.btn-primary:hover{background:#b26025;color:#fff;transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-light{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-light:hover{background:var(--surface);color:var(--ink)}
.btn-sm{height:40px;padding:0 22px;font-size:14px}
.btn .arrow{transition:transform .2s ease}
.btn:hover .arrow{transform:translateX(4px)}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-size:14.5px;font-weight:600;
}
.link-arrow:hover{color:var(--ink);text-decoration:underline;text-underline-offset:4px}
.link-arrow .arrow{transition:transform .2s ease}
.link-arrow:hover .arrow{transform:translateX(4px)}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  background:var(--surface);color:var(--ink);border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;letter-spacing:.2px;
}
.eyebrow{
  display:inline-block;font-size:12.5px;letter-spacing:2px;
  color:var(--brand);font-weight:600;
}

/* ============ 分类头区 ============ */
.cat-hero{position:relative;overflow:hidden;background:var(--ink);margin-top:18px;border-radius:0 0 var(--r-l) var(--r-l)}
.cat-hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.6}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(23,64,60,.45) 0%,rgba(23,64,60,.84) 100%);
}
.cat-hero-inner{position:relative;z-index:2;padding-top:68px;padding-bottom:52px;color:#fff;max-width:880px}
.cat-hero h1{
  color:#fff;font-size:clamp(28px,4.4vw,46px);line-height:1.18;
  margin:14px 0 16px;letter-spacing:-.5px;
}
.cat-hero p{color:rgba(255,255,255,.86);font-size:18px;line-height:1.7;margin:0;max-width:640px}
.cat-hero .eyebrow{color:rgba(255,255,255,.82)}

/* 状态条 */
.status-bar{background:var(--deep);color:rgba(255,255,255,.8);font-size:13.5px}
.status-inner{display:flex;flex-wrap:wrap;align-items:center;gap:10px 30px;padding-top:13px;padding-bottom:13px}
.status-item{display:inline-flex;align-items:center;gap:9px}
.dot{width:8px;height:8px;border-radius:50%;background:#5FD0A8;box-shadow:0 0 0 4px rgba(95,208,168,.16);animation:pulse 2.6s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}
.status-link{margin-left:auto;color:rgba(255,255,255,.9);font-size:13.5px}
.status-link:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}

/* ============ 通用板块 ============ */
.section{padding:104px 0}
.section-alt{background:var(--surface)}
.section-head{max-width:780px;margin-bottom:56px}
.section-head h2{font-size:clamp(26px,3.4vw,38px);line-height:1.24;margin-top:12px}
.section-head p{color:var(--text-2);font-size:17px;margin:16px 0 0}
.section-foot{margin-top:44px}

/* ============ 流程带 ============ */
.flow-band{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.flow-step{position:relative;padding-top:20px}
.flow-step::before{
  content:"";position:absolute;top:0;left:0;width:46px;height:2px;
  background:var(--accent);border-radius:2px;
}
.flow-step::after{
  content:"";position:absolute;top:0;right:-28px;width:28px;
  border-top:1px dashed var(--line-strong);
}
.flow-step:last-child::after{display:none}
.flow-num{font-family:var(--serif);font-size:32px;line-height:1;color:var(--brand);opacity:.45;display:block}
.flow-step h3{font-size:21px;margin:10px 0 10px}
.flow-step p{color:var(--text-2);font-size:15.5px;margin:0}

/* ============ 反色能力区 ============ */
.dark-band{background:var(--ink);color:rgba(255,255,255,.8);padding:96px 0}
.dark-band .eyebrow{color:rgba(255,255,255,.7)}
.dark-band h2{color:#fff;font-size:clamp(24px,3.2vw,36px);line-height:1.26;margin-top:12px}
.dark-band .lead{color:rgba(255,255,255,.78);font-size:16.5px;margin:18px 0 0;max-width:520px}
.cap-list{margin-top:38px;display:grid;gap:24px}
.cap-item{
  display:grid;grid-template-columns:auto 1fr;gap:18px;
  padding-bottom:24px;border-bottom:1px solid rgba(255,255,255,.14);
}
.cap-item:last-child{border-bottom:0;padding-bottom:0}
.cap-idx{font-family:var(--serif);font-size:26px;line-height:1.2;color:var(--accent)}
.cap-item h3{color:#fff;font-size:20px;margin-bottom:6px}
.cap-item p{margin:0;font-size:15.5px;color:rgba(255,255,255,.78)}
.dark-band figure{margin:0}
.dark-band figure img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-m);
  border:1px solid rgba(255,255,255,.16);
}
.dark-band figcaption{font-size:13px;color:rgba(255,255,255,.62);margin-top:14px}

/* ============ 卡片 ============ */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-m);
  box-shadow:var(--sh-1);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.cap-cards{display:grid;grid-template-columns:5fr 7fr;gap:28px;align-items:stretch}
.card-column{display:grid;gap:28px;grid-template-rows:1fr 1fr}
.feature-card{overflow:hidden;display:flex;flex-direction:column}
.feature-card img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .6s var(--ease)}
.feature-card:hover img{transform:scale(1.03)}
.feature-card .body{padding:28px 28px 30px;display:flex;flex-direction:column;gap:12px;flex:1}
.feature-card h3{font-size:22px}
.feature-card p{color:var(--text-2);font-size:15.5px;margin:0}
.media-card{display:grid;grid-template-columns:150px 1fr;gap:22px;align-items:center;padding:22px}
.media-card img{width:100%;aspect-ratio:1/1;object-fit:cover;border-radius:var(--r-s);transition:transform .6s var(--ease)}
.media-card:hover img{transform:scale(1.03)}
.media-card h3{font-size:19px;margin-bottom:8px}
.media-card p{color:var(--text-2);font-size:15px;margin:0}

/* ============ 表格 ============ */
.table-wrap{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-m);
  overflow-x:auto;box-shadow:var(--sh-1);
}
table.plain{width:100%;min-width:760px;border-collapse:collapse}
table.plain th{
  background:var(--surface);color:var(--ink);font-family:var(--serif);font-weight:600;
  font-size:15px;text-align:left;padding:17px 22px;border-bottom:1px solid var(--line);white-space:nowrap;
}
table.plain td{
  padding:17px 22px;border-bottom:1px solid var(--line);
  font-size:15px;color:var(--text-2);vertical-align:top;line-height:1.7;
}
table.plain tbody tr:last-child td{border-bottom:0}
table.plain td strong{color:var(--ink);font-weight:600;display:block;font-size:15.5px}

/* ============ FAQ ============ */
.faq-list{border-top:1px solid var(--line);max-width:900px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;background:none;border:0;cursor:pointer;text-align:left;
  min-height:64px;padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  font-family:var(--sans);font-size:16.5px;font-weight:600;color:var(--ink);
  transition:color .18s ease;
}
.faq-q:hover{color:var(--brand)}
.faq-arrow{flex:none;color:var(--brand);transition:transform .28s var(--ease)}
.faq-item.is-open .faq-arrow{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s var(--ease)}
.faq-a p{color:var(--text-2);font-size:15.5px;line-height:1.85;margin:0 0 22px;max-width:74ch}

/* ============ CTA ============ */
.cta-section{padding:0 0 104px}
.cta-band{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);
  padding:52px 56px;position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:var(--accent);opacity:.9;
}
.cta-band h2{font-size:clamp(22px,2.8vw,30px);line-height:1.3}
.cta-band p{color:var(--text-2);font-size:16px;margin:12px 0 0;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{background:var(--deep);color:rgba(255,255,255,.78);padding:72px 0 32px;font-size:14.5px}
.footer-top{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding-bottom:28px;border-bottom:1px solid rgba(255,255,255,.12)}
.footer-brand-mark{color:var(--brand);display:inline-flex}
.footer-brand-mark svg{width:26px;height:26px}
.footer-brand-text{font-family:var(--serif);font-size:18px;color:#fff;font-weight:600}
.footer-brand-desc{color:rgba(255,255,255,.6);font-size:13.5px}
.footer-grid{display:grid;grid-template-columns:1fr 1fr 1fr 1.4fr;gap:36px;padding:44px 0 36px}
.footer-col h4{color:#fff;font-family:var(--sans);font-size:14px;font-weight:600;letter-spacing:.4px;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{color:rgba(255,255,255,.78);font-size:14.5px;display:inline-block;transition:color .18s ease,transform .18s ease}
.footer-col a:hover{color:var(--accent);transform:translateX(2px)}
.footer-col p{color:rgba(255,255,255,.7);font-size:14px;line-height:1.9;margin:0}
.footer-contact{
  display:flex;flex-wrap:wrap;gap:8px 32px;
  padding:22px 0;border-top:1px solid rgba(255,255,255,.12);
  color:rgba(255,255,255,.6);font-size:13.5px;
}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
  padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  color:rgba(255,255,255,.58);font-size:13.5px;
}
.footer-bottom a{color:rgba(255,255,255,.78)}
.footer-bottom a:hover{color:var(--accent)}

/* ============ 响应式 ============ */
@media screen and (max-width:1199px){
  .command-search{width:200px}
}
@media screen and (max-width:1023px){
  .section{padding:80px 0}
  .cat-hero-inner{padding-top:56px;padding-bottom:44px}
  .flow-band{grid-template-columns:repeat(2,1fr);gap:32px 28px}
  .flow-step::after{display:none}
  .cap-cards{grid-template-columns:1fr}
  .dark-band{padding:80px 0}
  .dark-band .visual{margin-top:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:44px 40px}
}
@media screen and (max-width:860px){
  .nav-main,.command-search,.link-quiet{display:none}
  .nav-toggle{display:block}
  .nav-shell{gap:12px;padding-right:12px}
  .nav-tools{gap:10px}
}
@media screen and (max-width:767px){
  body{font-size:16px;line-height:1.9}
  .grid-container{padding-left:18px;padding-right:18px}
  .site-header{padding:10px 12px 0}
  .nav-shell{height:62px;padding-left:16px;border-radius:var(--r-m)}
  .brand-name{font-size:15.5px}
  .section{padding:60px 0}
  .section-head{margin-bottom:36px}
  .section-head h2{font-size:26px}
  .cat-hero{border-radius:0 0 var(--r-m) var(--r-m);margin-top:14px}
  .cat-hero h1{font-size:28px}
  .cat-hero p{font-size:16px}
  .status-inner{gap:8px 18px;font-size:13px}
  .status-link{margin-left:0}
  .flow-band{grid-template-columns:1fr;gap:30px}
  .flow-step{padding-top:16px}
  .dark-band{padding:60px 0}
  .cap-item{grid-template-columns:auto 1fr;gap:14px}
  .media-card{grid-template-columns:1fr;gap:16px;padding:20px}
  .media-card img{aspect-ratio:16/10}
  .feature-card .body{padding:22px 22px 24px}
  .cta-band{padding:32px 24px;gap:24px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:36px 0 28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .faq-q{font-size:16px;gap:16px}
}
@media screen and (max-width:520px){
  .brand-name{font-size:14.5px;letter-spacing:-.3px}
  .cat-hero h1{font-size:25px}
  .cta-band h2{font-size:22px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category3 */
/* ============ 设计变量 ============ */
:root{
  --ink:#17403C;
  --brand:#2E7D74;
  --accent:#C8712F;
  --bg:#FAF7F2;
  --surface:#F2EDE5;
  --card:#FFFFFF;
  --deep:#12302C;
  --text:#141A1A;
  --text-2:#5A6664;
  --text-3:#8E9894;
  --line:#E5DFD5;
  --line-strong:#CFC7BA;
  --r-s:8px;
  --r-m:14px;
  --r-l:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,26,26,.05),0 10px 28px -20px rgba(20,26,26,.22);
  --sh-2:0 2px 6px rgba(20,26,26,.06),0 22px 48px -26px rgba(20,26,26,.26);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:"Noto Sans SC","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}

/* ============ 基础重置 ============ */
*,*::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:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,p,ul,ol,li,figure,blockquote{margin:0;padding:0;}
ul,ol{list-style:none;}
a{color:inherit;text-decoration:none;}
img{display:block;max-width:100%;height:auto;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input{font:inherit;}
h1,h2,h3,h4{font-family:var(--serif);color:var(--ink);font-weight:600;line-height:1.24;letter-spacing:-.3px;}
h1{font-size:clamp(30px,4.4vw,48px);line-height:1.16;}
h2{font-size:clamp(25px,2.9vw,36px);line-height:1.22;}
h3{font-size:21px;line-height:1.4;}
p{color:var(--text-2);}
a:focus-visible,button:focus-visible,input:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(46,125,116,.28);border-radius:6px;}

/* ============ 栅格覆盖 ============ */
.grid-container{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}
.grid-x.grid-margin-x{margin-left:-12px;margin-right:-12px;}
.grid-x.grid-margin-x>.cell{padding-left:12px;padding-right:12px;}

/* ============ 通用元素 ============ */
.section{padding:104px 0;}
.section--tight{padding:72px 0;}
.section--flush{padding-top:0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:1.4px;color:var(--brand);font-weight:500;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brand);opacity:.6;}
.lead{font-size:18.5px;line-height:1.78;color:var(--text-2);max-width:640px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:48px;}
.section-head p{margin-top:12px;font-size:15.5px;max-width:520px;}
.textlink{display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-size:14.5px;font-weight:500;border-bottom:1px solid transparent;transition:border-color .2s ease,gap .2s ease;}
.textlink:hover{border-color:var(--brand);gap:12px;}
.textlink svg{width:14px;height:14px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:46px;padding:0 26px;border-radius:var(--r-pill);
  font-size:14.5px;font-weight:500;line-height:1;white-space:nowrap;
  transition:background .22s ease,color .22s ease,border-color .22s ease,box-shadow .22s ease,transform .22s ease;
}
.btn svg{width:15px;height:15px;transition:transform .22s ease;}
.btn:hover svg{transform:translateX(4px);}
.btn--accent{background:var(--accent);color:#fff;}
.btn--accent:hover{background:#B5641F;box-shadow:0 10px 22px -14px rgba(200,113,47,.85);}
.btn--outline{border:1px solid var(--ink);color:var(--ink);background:transparent;}
.btn--outline:hover{background:var(--ink);color:#fff;}
.btn--sm{height:40px;padding:0 22px;font-size:13.5px;}
.btn--block{width:100%;}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:80;padding:12px 0;}
.header-inner{
  max-width:1200px;margin:0 auto;height:68px;padding:0 20px;
  display:flex;align-items:center;gap:22px;
  background:rgba(250,247,242,.86);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border:1px solid var(--line);border-radius:var(--r-l);
  box-shadow:var(--sh-1);
  transition:background .26s ease,box-shadow .26s ease;
}
.site-header.is-scrolled .header-inner{background:rgba(250,247,242,.95);box-shadow:var(--sh-2);}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;display:grid;place-items:center;border-radius:11px;
  background:rgba(46,125,116,.10);color:var(--brand);flex-shrink:0;
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{font-family:var(--serif);font-size:17px;font-weight:600;color:var(--ink);letter-spacing:.2px;white-space:nowrap;}
.nav-main{display:flex;align-items:center;gap:26px;margin-left:6px;}
.nav-link{position:relative;padding:6px 0;font-size:13.5px;letter-spacing:.2px;color:var(--text-2);transition:color .16s ease;}
.nav-link:hover{color:var(--ink);}
.nav-link.is-active{color:var(--ink);font-weight:500;}
.nav-link.is-active::after{content:"";position:absolute;left:0;right:0;bottom:-3px;height:2px;border-radius:2px;background:var(--brand);}
.header-tools{margin-left:auto;display:flex;align-items:center;gap:16px;}
.search{position:relative;display:flex;align-items:center;width:238px;}
.search svg{position:absolute;left:12px;width:15px;height:15px;color:var(--text-3);pointer-events:none;}
.search input{
  width:100%;height:38px;padding:0 48px 0 34px;
  border:1px solid var(--line);border-radius:10px;background:rgba(255,255,255,.92);
  font-size:13.5px;color:var(--text);transition:border-color .2s ease,box-shadow .2s ease;
}
.search input::placeholder{color:var(--text-3);}
.search input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(46,125,116,.16);}
.kbd{
  position:absolute;right:10px;font-size:11px;line-height:1;color:var(--text-3);
  border:1px solid var(--line);border-radius:6px;padding:4px 5px;background:var(--surface);
}
.header-link{font-size:13.5px;color:var(--text-2);transition:color .16s ease;}
.header-link:hover{color:var(--ink);}
.hamburger{
  display:none;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  width:42px;height:42px;border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.92);flex-shrink:0;
}
.hamburger span{display:block;width:16px;height:2px;border-radius:2px;background:var(--ink);transition:transform .25s ease;}
.hamburger.is-open span:first-child{transform:translateY(3.5px) rotate(45deg);}
.hamburger.is-open span:last-child{transform:translateY(-3.5px) rotate(-45deg);}

/* 抽屉 */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);z-index:100;
  background:var(--card);border-radius:var(--r-l) 0 0 var(--r-l);
  box-shadow:var(--sh-2);padding:76px 24px 32px;
  display:flex;flex-direction:column;gap:4px;overflow-y:auto;
  transform:translateX(102%);
  transition:transform .34s cubic-bezier(.22,.61,.36,1);
}
.drawer.is-open{transform:translateX(0);}
.drawer-close{
  position:absolute;top:20px;right:20px;width:36px;height:36px;border-radius:10px;
  border:1px solid var(--line);font-size:18px;line-height:1;color:var(--text-2);
}
.drawer-link{display:flex;align-items:center;height:48px;border-bottom:1px solid var(--line);font-size:15px;color:var(--ink);}
.drawer-link.is-active{color:var(--brand);font-weight:500;}
.drawer-search{width:100%;margin:20px 0 16px;}
.drawer-backdrop{
  position:fixed;inset:0;z-index:90;background:rgba(18,48,44,.42);
  opacity:0;pointer-events:none;transition:opacity .3s ease;
}
.drawer-backdrop.is-open{opacity:1;pointer-events:auto;}

/* ============ 分类横幅 ============ */
.cat-hero{
  position:relative;overflow:hidden;margin-top:28px;
  min-height:372px;border-radius:var(--r-l);background:var(--deep);
  display:flex;align-items:flex-end;
}
.cat-hero__bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.cat-hero__veil{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(18,48,44,.42) 0%,rgba(18,48,44,.72) 55%,rgba(18,48,44,.88) 100%);
}
.cat-hero__in{position:relative;padding:56px 56px 46px;max-width:860px;}
.cat-hero .eyebrow{color:rgba(255,255,255,.78);}
.cat-hero .eyebrow::before{background:rgba(255,255,255,.55);}
.cat-hero h1{color:#fff;margin:18px 0 16px;}
.cat-hero p{color:rgba(255,255,255,.82);font-size:17.5px;line-height:1.75;max-width:660px;}

/* 状态数据条 */
.stat-strip{
  display:grid;grid-template-columns:repeat(3,1fr);
  border:1px solid var(--line);border-top:0;border-radius:0 0 var(--r-l) var(--r-l);
  background:var(--card);overflow:hidden;
}
.stat-strip__item{padding:24px 28px;border-right:1px solid var(--line);}
.stat-strip__item:last-child{border-right:0;}
.stat-strip__num{font-family:var(--serif);font-size:26px;font-weight:600;color:var(--ink);line-height:1.2;}
.stat-strip__num em{font-style:normal;font-size:14px;color:var(--brand);margin-left:6px;font-family:var(--sans);}
.stat-strip__label{font-size:13.5px;color:var(--text-3);margin-top:4px;line-height:1.6;}

/* ============ 帮助区：左索引 + 右 FAQ ============ */
.help-grid{align-items:flex-start;}
.side-panel{
  position:sticky;top:104px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-m);
  padding:28px;box-shadow:var(--sh-1);
}
.side-panel h2{font-size:20px;margin:10px 0 6px;}
.side-panel .side-desc{font-size:13.5px;color:var(--text-3);line-height:1.7;}
.anchor-list{margin-top:18px;}
.anchor-list li+li{border-top:1px solid var(--line);}
.anchor-list a{
  display:flex;align-items:center;gap:10px;padding:13px 0;
  font-size:14.5px;color:var(--text-2);transition:color .18s ease,padding-left .2s ease;
}
.anchor-list a::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--line-strong);flex-shrink:0;transition:background .2s ease;}
.anchor-list a:hover{color:var(--brand);padding-left:5px;}
.anchor-list a:hover::before{background:var(--brand);}
.side-note{
  margin-top:22px;padding:16px 18px;background:var(--surface);border-radius:var(--r-s);
  font-size:13px;line-height:1.7;color:var(--text-2);
}

.faq-list{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);scroll-margin-top:120px;transition:background .2s ease;}
.faq-item.is-open{background:linear-gradient(90deg,rgba(46,125,116,.05),rgba(46,125,116,0) 60%);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 6px;text-align:left;font-size:16.5px;font-weight:500;color:var(--ink);
  font-family:var(--sans);transition:color .18s ease;
}
.faq-q:hover{color:var(--brand);}
.faq-q svg{flex-shrink:0;width:16px;height:16px;color:var(--text-3);transition:transform .28s ease,color .2s ease;}
.faq-item.is-open .faq-q svg{transform:rotate(180deg);color:var(--brand);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s cubic-bezier(.22,.61,.36,1);}
.faq-a__in{padding:0 40px 26px 6px;font-size:15.5px;line-height:1.85;color:var(--text-2);max-width:660px;}
.faq-a__in strong{color:var(--ink);font-weight:600;}

/* ============ 常见疑问对照 ============ */
.compare-block{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-l);
  padding:48px;box-shadow:var(--sh-1);
}
.mini-list{margin-top:26px;}
.mini-list li{padding:20px 0;border-top:1px solid var(--line);}
.mini-list li:last-child{border-bottom:1px solid var(--line);}
.mini-list h4{font-family:var(--sans);font-size:15.5px;font-weight:600;color:var(--ink);margin-bottom:6px;}
.mini-list p{font-size:14.5px;line-height:1.8;color:var(--text-2);}
.frame{padding:10px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-m);}
.frame img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-s);}
.frame-cap{margin-top:14px;font-size:13.5px;color:var(--text-3);text-align:center;}
.compare-cta{margin-top:22px;display:flex;align-items:center;gap:16px;flex-wrap:wrap;}

/* ============ 紧凑 CTA ============ */
.cta-strip{
  position:relative;overflow:hidden;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-l);
  padding:34px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:var(--sh-1);
}
.cta-strip::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:var(--accent);}
.cta-strip h2{font-size:22px;}
.cta-strip p{margin-top:8px;font-size:14.5px;max-width:640px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--deep);color:rgba(255,255,255,.78);padding:72px 0 32px;margin-top:104px;}
.site-footer h4{color:#fff;font-family:var(--sans);font-size:14px;font-weight:600;letter-spacing:.4px;margin-bottom:16px;}
.footer-top{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.12);}
.footer-brand-mark{width:34px;height:34px;display:grid;place-items:center;border-radius:11px;background:rgba(255,255,255,.08);color:#fff;}
.footer-brand-mark svg{width:18px;height:18px;}
.footer-brand-text{font-family:var(--serif);font-size:17px;color:#fff;font-weight:600;}
.footer-brand-desc{font-size:13.5px;color:rgba(255,255,255,.6);margin-left:8px;}
.footer-grid{display:grid;grid-template-columns:2fr 2fr 2fr 3fr;gap:36px;padding:44px 0;}
.footer-col ul li+li{margin-top:11px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.78);display:inline-block;transition:color .18s ease,transform .18s ease;}
.footer-col a:hover{color:var(--accent);transform:translateX(2px);}
.footer-col p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.72);}
.footer-contact{
  display:flex;gap:28px;flex-wrap:wrap;padding:20px 0;font-size:13.5px;color:rgba(255,255,255,.6);
  border-top:1px solid rgba(255,255,255,.12);border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:24px;font-size:13px;color:rgba(255,255,255,.55);}
.footer-bottom a{color:rgba(255,255,255,.7);}
.footer-bottom a:hover{color:var(--accent);}

/* ============ 入场动画 ============ */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .42s cubic-bezier(.22,.61,.36,1),transform .42s cubic-bezier(.22,.61,.36,1);}
.reveal.is-in{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .header-inner{gap:16px;padding:0 16px;}
  .nav-main{gap:18px;}
  .search{width:200px;}
  .footer-grid{grid-template-columns:1.6fr 1.6fr 1.6fr 2.4fr;gap:26px;}
}
@media (max-width:1100px){
  .nav-main,.search,.header-link{display:none;}
  .hamburger{display:flex;}
}
@media (max-width:1023px){
  .section{padding:80px 0;}
  .section--tight{padding:60px 0;}
  .cat-hero__in{padding:44px 36px 38px;}
  .side-panel{position:static;margin-bottom:36px;}
  .compare-block{padding:36px 28px;}
  .stat-strip{grid-template-columns:1fr;border-radius:0 0 var(--r-m) var(--r-m);}
  .stat-strip__item{border-right:0;border-bottom:1px solid var(--line);padding:20px 24px;}
  .stat-strip__item:last-child{border-bottom:0;}
  .site-footer{margin-top:80px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:639px){
  body{font-size:16px;line-height:1.88;}
  .grid-container{padding-left:18px;padding-right:18px;}
  .site-header{padding:10px 0;}
  .header-inner{height:62px;padding:0 14px;border-radius:18px;}
  .brand-text{font-size:15.5px;}
  .section{padding:60px 0;}
  .section--tight{padding:48px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:32px;}
  .cat-hero{min-height:auto;border-radius:var(--r-m);margin-top:16px;}
  .cat-hero__in{padding:36px 22px 32px;}
  .cat-hero p{font-size:16px;}
  .faq-q{font-size:15.5px;padding:20px 4px;}
  .faq-a__in{padding:0 4px 22px;}
  .compare-block{padding:28px 20px;border-radius:var(--r-m);}
  .cta-strip{flex-direction:column;align-items:flex-start;padding:28px 22px;border-radius:var(--r-m);}
  .cta-strip .btn{width:100%;}
  .btn{width:100%;}
  .btn--sm{width:auto;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:36px 0;}
  .footer-contact{gap:12px;flex-direction:column;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:520px){
  .brand-text{font-size:14.5px;letter-spacing:0;}
  .brand-mark{width:30px;height:30px;}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
}