/* roulang page: index */
:root{
  --ink:#14161A;
  --ink-2:#4B4C50;
  --muted:#7A7873;
  --brand:#C4661F;
  --brand-dark:#9E4E13;
  --brand-soft:#FBEEE3;
  --accent:#2C5F55;
  --accent-soft:#E7EFEC;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --line:#E6E1D8;
  --line-strong:#D6CFC2;
  --dark-text:#F2EFE9;
  --r-card:16px;
  --r-img:20px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(20,22,26,.04), 0 8px 24px rgba(20,22,26,.05);
  --sh-2:0 12px 32px rgba(20,22,26,.10);
  --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(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease);}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}

body h1{font-size:clamp(36px,5.2vw,66px);line-height:1.1;font-weight:800;letter-spacing:-.02em;margin:0;}
body h2{font-size:clamp(26px,3.4vw,40px);line-height:1.22;font-weight:700;letter-spacing:-.015em;margin:0;}
body h3{font-size:21px;line-height:1.38;font-weight:600;margin:0;}
body h4{font-size:17px;line-height:1.5;font-weight:600;margin:0;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,245,240,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-inner{height:64px;display:flex;align-items:center;gap:20px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{width:28px;height:28px;flex:0 0 28px;display:block;}
.brand-name{font-size:17px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:24px;margin-left:10px;}
.nav-link{
  position:relative;display:flex;align-items:center;height:64px;
  font-size:15px;font-weight:500;color:var(--ink-2);white-space:nowrap;
}
.nav-link:hover{color:var(--brand);}
.nav-link.active{color:var(--brand);font-weight:600;}
.nav-link.active::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--brand);
}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:14px;}
.cmd-search{
  display:flex;align-items:center;gap:8px;width:236px;height:38px;padding:0 10px 0 12px;
  border:1px solid var(--line);border-radius:var(--r-btn);background:var(--surface);
  color:var(--muted);font-size:13.5px;transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.cmd-search:hover{border-color:var(--line-strong);}
.cmd-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(196,102,31,.12);}
.cmd-search input{border:0;outline:none;background:transparent;font-size:13.5px;color:var(--ink);width:100%;font-family:inherit;}
.cmd-search input::placeholder{color:var(--muted);}
.kbd{
  margin-left:auto;font-size:11px;line-height:1;padding:4px 6px;border:1px solid var(--line);
  border-radius:6px;background:var(--bg);color:var(--muted);white-space:nowrap;
}
.quick-link{font-size:14px;font-weight:500;color:var(--ink-2);white-space:nowrap;}
.quick-link:hover{color:var(--brand);}
.hamburger{
  display:none;width:40px;height:40px;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--r-btn);background:var(--surface);margin-left:auto;
}
.hamburger span{display:block;width:18px;height:2px;background:var(--ink);position:relative;}
.hamburger span::before,.hamburger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);}
.hamburger span::before{top:-6px;}
.hamburger span::after{top:6px;}

.mobile-drawer{
  display:none;position:fixed;inset:56px 0 0 0;background:#fff;z-index:70;
  padding:12px 20px 32px;overflow-y:auto;border-top:1px solid var(--line);
}
.mobile-drawer.open{display:block;}
.mobile-drawer a.m-link{
  display:block;font-size:18px;font-weight:600;line-height:56px;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.mobile-drawer a.m-link.active{color:var(--brand);}
.m-drawer-foot{margin-top:24px;display:flex;flex-direction:column;gap:14px;}
.m-drawer-foot .cmd-search{width:100%;}

/* ============ 按钮 / 徽章 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:background-color .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-primary{background:var(--brand);color:#fff;border:1px solid var(--brand);}
.btn-primary:hover{background:var(--brand-dark);border-color:var(--brand-dark);}
.btn-primary:hover .btn-arrow{transform:translateX(3px);}
.btn-arrow{transition:transform .18s var(--ease);display:inline-block;}
.btn-secondary{background:transparent;border:1px solid var(--line-strong);color:var(--ink);}
.btn-secondary:hover{border-color:var(--brand);background:var(--brand-soft);color:var(--brand-dark);}
.btn-onDark{background:transparent;border:1px solid rgba(255,255,255,.34);color:#fff;}
.btn-onDark:hover{border-color:#fff;background:rgba(255,255,255,.08);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:6px;height:auto;padding:0 0 3px 0;
  color:var(--brand);font-weight:600;font-size:14.5px;border-bottom:2px solid transparent;
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.btn-ghost:hover{border-bottom-color:var(--brand);color:var(--brand-dark);}
.btn-ghost:hover .btn-arrow{transform:translateX(3px);}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:999px;font-size:12px;font-weight:600;
  letter-spacing:.04em;line-height:1.6;
}
.badge-brand{background:var(--brand-soft);color:var(--brand);}
.badge-accent{background:var(--accent-soft);color:var(--accent);}
.badge-line{border:1px solid var(--line-strong);color:var(--muted);background:var(--surface);}

/* ============ 区块 ============ */
.section{padding:104px 0;}
.section-tight{padding:76px 0;}
.kicker{width:32px;height:3px;background:var(--brand);border-radius:2px;margin-bottom:18px;}
.sec-head{margin-bottom:40px;}
.sec-head.split{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.sec-sub{color:var(--muted);font-size:15.5px;margin-top:12px;max-width:640px;}
.sec-eyebrow{font-size:12.5px;letter-spacing:.1em;color:var(--accent);font-weight:600;margin-bottom:10px;text-transform:uppercase;}

/* ============ Hero ============ */
.hero{padding:68px 0 56px;}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;}
.hero-copy > *{animation:fadeUp .6s var(--ease) both;}
.hero-copy > *:nth-child(1){animation-delay:.02s;}
.hero-copy > *:nth-child(2){animation-delay:.08s;}
.hero-copy > *:nth-child(3){animation-delay:.14s;}
.hero-copy > *:nth-child(4){animation-delay:.2s;}
.hero-copy > *:nth-child(5){animation-delay:.26s;}
@keyframes fadeUp{from{opacity:0;transform:translateY(12px);}to{opacity:1;transform:none;}}
.hero h1{margin:20px 0 0;}
.hero-lead{font-size:17.5px;line-height:1.85;color:var(--ink-2);margin-top:20px;max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:40px;margin-top:44px;padding-top:28px;border-top:1px solid var(--line);}
.stat-num{font-size:32px;font-weight:700;color:var(--accent);line-height:1.1;letter-spacing:-.02em;}
.stat-lab{font-size:12.5px;color:var(--muted);margin-top:6px;letter-spacing:.06em;}
.hero-visual{
  position:relative;border-radius:var(--r-img);overflow:hidden;
  background:var(--line);aspect-ratio:16/10;box-shadow:var(--sh-1);
}
.hero-visual img{width:100%;height:100%;object-fit:cover;}
.hero-float{
  position:absolute;left:18px;bottom:18px;background:rgba(255,255,255,.96);
  border:1px solid var(--line);border-radius:12px;padding:10px 14px;box-shadow:var(--sh-1);
}
.hero-float .hf-label{font-size:11.5px;letter-spacing:.08em;color:var(--muted);}
.hero-float .hf-val{font-size:14.5px;font-weight:700;color:var(--accent);margin-top:2px;}

/* ============ 信任条 ============ */
.trust{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--surface);}
.trust ul{display:flex;flex-wrap:wrap;}
.trust li{
  flex:1 1 200px;padding:18px 22px;font-size:13px;color:var(--muted);letter-spacing:.03em;
  border-right:1px solid var(--line);
}
.trust li:last-child{border-right:0;}
.trust li strong{display:block;font-size:14px;color:var(--ink-2);font-weight:600;margin-bottom:2px;letter-spacing:0;}

/* ============ Bento ============ */
.bento{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.b-card{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.b-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;background:var(--brand);
  opacity:0;transition:opacity .18s var(--ease);
}
.b-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.b-card:hover::before{opacity:1;}
.b-wide{grid-column:span 2;display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:center;padding:0;overflow:hidden;}
.b-wide-copy{padding:34px 0 34px 32px;}
.b-wide-media{height:100%;min-height:250px;overflow:hidden;background:var(--accent-soft);}
.b-wide-media img{width:100%;height:100%;object-fit:cover;transition:transform .22s var(--ease);}
.b-wide:hover .b-wide-media img{transform:scale(1.03);}
.b-icon{
  width:44px;height:44px;border-radius:12px;background:var(--accent-soft);
  display:flex;align-items:center;justify-content:center;color:var(--accent);margin-bottom:18px;
}
.b-card h3{margin-bottom:10px;}
.b-card p{font-size:15px;line-height:1.8;color:var(--muted);}
.b-link{margin-top:16px;display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:14px;font-weight:600;}
.b-link:hover .btn-arrow{transform:translateX(3px);}

/* ============ 场景 ============ */
.scene{display:grid;grid-template-columns:5fr 7fr;gap:52px;align-items:center;padding:44px 0;}
.scene + .scene{border-top:1px solid var(--line);}
.scene.rev{grid-template-columns:7fr 5fr;}
.scene.rev .scene-media{order:2;}
.scene-media{border-radius:var(--r-img);overflow:hidden;background:var(--line);aspect-ratio:4/3;box-shadow:var(--sh-1);}
.scene-media img{width:100%;height:100%;object-fit:cover;transition:transform .22s var(--ease);}
.scene-media:hover img{transform:scale(1.03);}
.scene-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border:1px solid var(--brand);color:var(--brand);
  border-radius:10px;font-size:15px;font-weight:700;letter-spacing:.04em;margin-bottom:18px;
}
.scene h3{margin-bottom:14px;}
.scene p{color:var(--ink-2);font-size:16px;}
.points{margin-top:20px;display:flex;flex-direction:column;gap:12px;}
.points li{position:relative;padding-left:22px;font-size:15.5px;color:var(--ink-2);}
.points li::before{
  content:"";position:absolute;left:0;top:12px;width:12px;height:2px;background:var(--brand);border-radius:2px;
}

/* ============ 案例 ============ */
.case-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.case-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:34px 32px 30px;box-shadow:var(--sh-1);border-left:3px solid var(--accent);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease);
}
.case-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.case-quote{font-size:21px;line-height:1.6;font-weight:500;color:var(--ink);letter-spacing:-.01em;}
.case-person{margin-top:22px;font-size:13.5px;color:var(--muted);}
.case-person strong{color:var(--ink-2);font-weight:600;}
.case-stats{display:flex;gap:44px;margin-top:24px;padding-top:22px;border-top:1px solid var(--line);}
.case-stats .num{font-size:30px;font-weight:700;color:var(--brand);line-height:1.1;letter-spacing:-.02em;}
.case-stats .lab{font-size:12.5px;color:var(--muted);margin-top:6px;}
.case-strip{
  margin-top:24px;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 26px;border:1px solid var(--line);border-radius:var(--r-card);background:var(--surface);
  transition:border-color .18s var(--ease),background-color .18s var(--ease);
}
.case-strip:hover{border-color:var(--brand);background:var(--brand-soft);}
.case-strip span{font-size:15.5px;color:var(--ink-2);}
.case-strip .btn-arrow{color:var(--brand);}

/* ============ 方案 ============ */
.plan-switch{
  display:inline-flex;gap:4px;padding:4px;background:var(--surface);
  border:1px solid var(--line);border-radius:999px;
}
.ps-btn{
  padding:8px 22px;border-radius:999px;font-size:14px;font-weight:600;color:var(--muted);
  transition:background-color .18s var(--ease),color .18s var(--ease);
}
.ps-btn:hover{color:var(--brand);}
.ps-btn.active{background:var(--brand);color:#fff;}
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;margin-top:44px;}
.plan-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:34px 30px;box-shadow:var(--sh-1);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease);
}
.plan-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.plan-card.featured{
  background:var(--ink);color:var(--dark-text);border:1px solid var(--brand);
  transform:translateY(-8px);box-shadow:0 24px 48px rgba(20,22,26,.18);
}
.plan-card.featured:hover{transform:translateY(-10px);}
.plan-tag{font-size:12.5px;letter-spacing:.08em;color:var(--muted);font-weight:600;}
.plan-card.featured .plan-tag{color:#D8B79A;}
.plan-name{font-size:20px;font-weight:700;margin-top:10px;}
.plan-price{display:flex;align-items:baseline;gap:6px;margin-top:18px;}
.price-num{font-size:44px;font-weight:800;letter-spacing:-.03em;line-height:1;color:var(--ink);}
.plan-card.featured .price-num{color:#fff;}
.plan-unit{font-size:13.5px;color:var(--muted);}
.plan-card.featured .plan-unit{color:rgba(242,239,233,.7);}
.plan-desc{font-size:14.5px;color:var(--muted);margin-top:14px;}
.plan-card.featured .plan-desc{color:rgba(242,239,233,.72);}
.plan-list{margin:24px 0 28px;display:flex;flex-direction:column;gap:12px;padding-top:22px;border-top:1px solid var(--line);}
.plan-card.featured .plan-list{border-top:1px solid rgba(255,255,255,.12);}
.plan-list li{display:flex;gap:10px;font-size:15px;color:var(--ink-2);align-items:flex-start;}
.plan-card.featured .plan-list li{color:rgba(242,239,233,.86);}
.tick{
  flex:0 0 16px;width:16px;height:16px;margin-top:6px;
  border-radius:50%;background:var(--accent-soft);position:relative;
}
.plan-card.featured .tick{background:rgba(196,102,31,.28);}
.tick::after{
  content:"";position:absolute;left:5px;top:3px;width:5px;height:8px;
  border-right:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(40deg);
}
.plan-card.featured .tick::after{border-color:#E7A468;}
.plan-card .btn{width:100%;}

/* ============ 资讯 / CMS ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--line-strong);}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--brand-soft);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .22s var(--ease);}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-title{
  font-size:17px;font-weight:600;line-height:1.5;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-sum{
  font-size:15px;line-height:1.75;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:12.5px;color:var(--muted);letter-spacing:.03em;
}
.news-meta .btn-arrow{color:var(--brand);}
.news-card:hover .news-meta .btn-arrow{transform:translateX(3px);}
.news-empty{
  border:1px dashed var(--line-strong);border-radius:var(--r-card);
  min-height:180px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;text-align:center;padding:32px;background:var(--surface);
}
.news-empty p{color:var(--muted);font-size:15px;}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;font-size:17px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand);}
.faq-mark{position:relative;width:18px;height:18px;flex:0 0 18px;transition:transform .2s var(--ease);}
.faq-mark::before,.faq-mark::after{content:"";position:absolute;background:var(--brand);border-radius:2px;}
.faq-mark::before{left:0;top:8px;width:18px;height:2px;}
.faq-mark::after{left:8px;top:0;width:2px;height:18px;}
.faq-item[open] .faq-mark{transform:rotate(45deg);}
.faq-body{padding:0 0 24px;font-size:15.5px;line-height:1.8;color:var(--ink-2);max-width:760px;}

/* ============ CTA + 页脚 ============ */
.dark-zone{background:var(--ink);color:var(--dark-text);position:relative;}
.dark-zone::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.055;
  background-image:linear-gradient(rgba(255,255,255,.6) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:56px 56px;
}
.cta-band{position:relative;padding:72px 0;}
.cta-band h2{color:#fff;max-width:720px;}
.cta-band p{margin-top:18px;color:rgba(242,239,233,.74);max-width:640px;font-size:16.5px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;position:relative;}

.site-footer{position:relative;border-top:1px solid rgba(255,255,255,.12);padding:56px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .brand-name{color:#fff;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(242,239,233,.62);max-width:300px;}
.footer-col h4{font-size:13.5px;letter-spacing:.08em;color:rgba(242,239,233,.55);font-weight:600;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14.5px;color:rgba(242,239,233,.82);}
.footer-col a:hover{color:var(--brand);}
.footer-col li span{font-size:14.5px;color:rgba(242,239,233,.82);}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(242,239,233,.5);
}
.footer-bottom a:hover{color:var(--brand);}
.to-top{display:inline-flex;align-items:center;gap:6px;color:rgba(242,239,233,.7);}
.to-top:hover{color:var(--brand);}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .55s var(--ease),transform .55s var(--ease);}
.reveal.in{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media(max-width:1024px){
  .container{padding:0 22px;}
  .main-nav,.nav-right{display:none;}
  .hamburger{display:flex;}
  .nav-inner{height:56px;}
  .mobile-drawer{inset:56px 0 0 0;}
  .hero{padding:52px 0 44px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-visual{aspect-ratio:auto;height:46vh;min-height:230px;}
  .section{padding:76px 0;}
  .bento{grid-template-columns:repeat(2,1fr);}
  .b-wide{grid-column:span 2;grid-template-columns:1fr;}
  .b-wide-copy{padding:30px 28px 0;}
  .b-wide-media{min-height:210px;border-radius:0 0 var(--r-card) var(--r-card);}
  .scene,.scene.rev{grid-template-columns:1fr;gap:28px;padding:36px 0;}
  .scene.rev .scene-media{order:0;}
  .plan-grid{grid-template-columns:1fr;gap:20px;}
  .plan-card.featured{transform:none;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media(max-width:640px){
  .container{padding:0 20px;}
  body{font-size:16px;}
  .hero-stats{gap:26px;}
  .stat-num{font-size:26px;}
  .bento{grid-template-columns:1fr;}
  .b-wide{grid-column:span 1;}
  .case-grid,.news-grid{grid-template-columns:1fr;}
  .case-quote{font-size:18.5px;}
  .case-stats{gap:28px;}
  .case-stats .num{font-size:26px;}
  .trust li{flex:1 1 100%;border-right:0;border-bottom:1px solid var(--line);}
  .trust li:last-child{border-bottom:0;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-band{padding:56px 0;}
  .btn{height:44px;}
  .hero-actions .btn{width:100%;}
}

/* roulang page: article */
:root{
    --ink:#14161A;
    --ink-2:#4B4C50;
    --muted:#7A7873;
    --brand:#C4661F;
    --brand-dark:#9E4E13;
    --brand-soft:#FBEEE3;
    --accent:#2C5F55;
    --accent-soft:#E7EFEC;
    --bg:#F7F5F0;
    --surface:#FFFFFF;
    --line:#E6E1D8;
    --line-strong:#D6CFC2;
    --dark-text:#F2EFE9;
    --dark-line:rgba(255,255,255,.12);
    --radius-card:16px;
    --radius-lg:20px;
    --radius-ctrl:10px;
    --shadow-1:0 1px 2px rgba(20,22,26,.04), 0 8px 24px rgba(20,22,26,.05);
    --shadow-2:0 12px 32px rgba(20,22,26,.10);
    --ease:cubic-bezier(.22,.61,.36,1);
    --container:1240px;
  }

  *,*::before,*::after{ box-sizing:border-box; }
  html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:'PingFang SC','HarmonyOS Sans SC','Source Han Sans SC','Noto Sans SC','Microsoft YaHei',sans-serif;
    font-size:16.5px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
  }
  img{ max-width:100%; display:block; }
  a{ color:inherit; text-decoration:none; }
  button{ font-family:inherit; }
  h1,h2,h3,h4,p,ul,ol,figure,blockquote{ margin:0; }
  ul,ol{ padding:0; list-style:none; }
  a:focus-visible,button:focus-visible,input:focus-visible{ outline:2px solid var(--brand); outline-offset:2px; border-radius:6px; }

  .container{ width:100%; max-width:var(--container); margin:0 auto; padding:0 24px; }

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:sticky; top:0; z-index:60;
    background:rgba(247,245,240,.86);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
    border-bottom:1px solid var(--line);
  }
  .header-inner{ display:flex; align-items:center; gap:20px; height:64px; }
  .brand{ display:inline-flex; align-items:center; gap:10px; flex:none; }
  .brand-mark{ width:28px; height:28px; flex:none; }
  .brand-name{ font-size:17px; font-weight:700; letter-spacing:-.01em; color:var(--ink); white-space:nowrap; }
  .main-nav{ display:flex; align-items:center; gap:2px; }
  .nav-link{
    position:relative; display:inline-flex; align-items:center; height:64px;
    padding:0 12px; font-size:14.5px; color:var(--ink-2);
    transition:color .18s var(--ease); white-space:nowrap;
  }
  .nav-link::after{
    content:""; position:absolute; left:12px; right:12px; bottom:14px; height:2px;
    background:var(--brand); transform:scaleX(0); transform-origin:left;
    transition:transform .18s var(--ease);
  }
  .nav-link:hover{ color:var(--brand); }
  .nav-link.active{ color:var(--brand); font-weight:600; }
  .nav-link.active::after{ transform:scaleX(1); }
  .header-right{ margin-left:auto; display:flex; align-items:center; gap:12px; }
  .search-box{
    display:flex; align-items:center; gap:8px; width:236px; height:38px;
    padding:0 10px 0 12px; border:1px solid var(--line); border-radius:var(--radius-ctrl);
    background:var(--surface); color:var(--muted); font-size:13.5px; cursor:text;
    transition:border-color .18s var(--ease), box-shadow .18s var(--ease);
  }
  .search-box:hover{ border-color:var(--line-strong); }
  .search-box svg{ flex:none; }
  .kbd{
    margin-left:auto; font-size:11px; line-height:1.6; padding:1px 6px;
    border:1px solid var(--line); border-radius:6px; background:var(--bg); color:var(--muted);
  }
  .header-link{ font-size:14px; color:var(--ink-2); transition:color .18s var(--ease); }
  .header-link:hover{ color:var(--brand); }
  .hamburger{
    display:none; width:40px; height:40px; align-items:center; justify-content:center;
    border:1px solid var(--line); border-radius:var(--radius-ctrl); background:var(--surface); cursor:pointer;
  }
  .hamburger span{ display:block; width:16px; height:2px; background:var(--ink); border-radius:2px; position:relative; }
  .hamburger span::before,.hamburger span::after{
    content:""; position:absolute; left:0; width:16px; height:2px; background:var(--ink); border-radius:2px;
  }
  .hamburger span::before{ top:-5px; }
  .hamburger span::after{ top:5px; }

  .mobile-drawer{
    position:fixed; left:0; right:0; top:56px; bottom:0; z-index:70;
    background:var(--surface); padding:20px; display:none; flex-direction:column; gap:4px;
    overflow-y:auto; border-top:1px solid var(--line);
  }
  .mobile-drawer.open{ display:flex; }
  .drawer-link{
    display:flex; align-items:center; min-height:56px; font-size:18px; color:var(--ink);
    border-bottom:1px solid var(--line);
  }
  .drawer-link.active{ color:var(--brand); font-weight:600; }
  .drawer-foot{ margin-top:20px; display:flex; flex-direction:column; gap:14px; }

  /* ---------- 按钮 / 徽章 ---------- */
  .btn{
    display:inline-flex; align-items:center; justify-content:center; gap:8px;
    height:44px; padding:0 20px; border-radius:var(--radius-ctrl);
    font-size:15px; font-weight:600; border:1px solid transparent; cursor:pointer;
    transition:background-color .18s var(--ease), border-color .18s var(--ease), color .18s var(--ease), transform .18s var(--ease);
  }
  .btn-primary{ background:var(--brand); color:#fff; }
  .btn-primary:hover{ background:var(--brand-dark); }
  .btn-primary:hover .arrow{ transform:translateX(3px); }
  .btn-secondary{ background:transparent; border-color:var(--line-strong); color:var(--ink); }
  .btn-secondary:hover{ border-color:var(--brand); background:var(--brand-soft); color:var(--brand-dark); }
  .btn-dark-ghost{ background:transparent; border-color:rgba(255,255,255,.4); color:#fff; }
  .btn-dark-ghost:hover{ background:rgba(255,255,255,.10); border-color:#fff; }
  .btn-ghost{
    display:inline-flex; align-items:center; gap:6px; height:auto; padding:0 0 2px;
    color:var(--brand); font-weight:600; font-size:15px; border:0; border-bottom:2px solid var(--brand-soft);
    background:none; cursor:pointer; transition:border-color .18s var(--ease), color .18s var(--ease);
  }
  .btn-ghost:hover{ border-bottom-color:var(--brand); color:var(--brand-dark); }
  .btn-sm{ height:38px; padding:0 16px; font-size:14px; border-radius:var(--radius-ctrl); }
  .arrow{ transition:transform .18s var(--ease); }

  .badge{
    display:inline-flex; align-items:center; gap:6px; padding:4px 10px;
    border-radius:999px; font-size:12px; font-weight:600; letter-spacing:.04em;
    background:var(--brand-soft); color:var(--brand-dark); white-space:nowrap;
  }
  .badge-accent{ background:var(--accent-soft); color:var(--accent); }

  .eyebrow{ display:block; width:32px; height:3px; background:var(--brand); border-radius:2px; margin-bottom:16px; }

  /* ---------- 面包屑 ---------- */
  .crumb-wrap{ padding:28px 0 0; }
  .breadcrumb{ display:flex; align-items:center; flex-wrap:wrap; gap:8px; font-size:13px; color:var(--muted); }
  .breadcrumb a{ color:var(--muted); transition:color .18s var(--ease); }
  .breadcrumb a:hover{ color:var(--brand); }
  .crumb-sep{ color:var(--line-strong); }
  .crumb-current{ max-width:52ch; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; color:var(--ink-2); }

  /* ---------- 文章头 ---------- */
  .article-head{ padding:22px 0 28px; border-bottom:1px solid var(--line); }
  .article-head-row{ display:flex; align-items:flex-start; gap:28px; }
  .article-title{
    font-size:clamp(30px,4vw,44px); line-height:1.25; font-weight:800;
    letter-spacing:-.02em; color:var(--ink); margin:14px 0 0; max-width:900px;
  }
  .meta-row{
    display:flex; align-items:center; flex-wrap:wrap; gap:10px;
    margin-top:18px; font-size:13px; color:var(--muted); letter-spacing:.04em;
  }
  .meta-dot{ color:var(--line-strong); }
  .share-group{ margin-left:auto; display:flex; gap:10px; flex:none; padding-top:8px; }
  .icon-btn{
    width:32px; height:32px; border-radius:999px; border:1px solid var(--line-strong);
    background:var(--surface); color:var(--ink-2); display:inline-flex; align-items:center; justify-content:center;
    cursor:pointer; transition:border-color .18s var(--ease), color .18s var(--ease), background-color .18s var(--ease);
  }
  .icon-btn:hover{ border-color:var(--brand); color:var(--brand); background:var(--brand-soft); }

  /* ---------- 正文布局 ---------- */
  .article-main{ padding:44px 0 8px; }
  .article-layout{ display:block; }
  .article-column{ max-width:760px; margin:0 auto; }
  .article-aside{ display:none; }

  .article-body{ font-size:17px; line-height:1.9; color:var(--ink-2); max-width:760px; }
  .article-body p{ margin:0 0 1.3em; }
  .article-body h2{
    font-size:26px; line-height:1.35; font-weight:700; color:var(--ink);
    margin:48px 0 16px;
  }
  .article-body h2::before{
    content:""; display:block; width:32px; height:3px; background:var(--brand);
    border-radius:2px; margin-bottom:16px;
  }
  .article-body h3{ font-size:20px; line-height:1.45; font-weight:600; color:var(--ink); margin:32px 0 12px; }
  .article-body h4{ font-size:17px; font-weight:600; color:var(--ink); margin:24px 0 10px; }
  .article-body ul,.article-body ol{ margin:0 0 1.3em; padding-left:1.4em; }
  .article-body ul li{ position:relative; list-style:none; margin-bottom:.4em; }
  .article-body ul li::before{
    content:""; position:absolute; left:-1.15em; top:.78em;
    width:6px; height:6px; border-radius:50%; background:var(--brand);
  }
  .article-body ol li{ list-style:decimal; margin-bottom:.4em; }
  .article-body ol li::marker{ color:var(--brand); font-weight:600; }
  .article-body blockquote{
    border-left:3px solid var(--brand); background:var(--brand-soft);
    padding:20px 24px; border-radius:0 12px 12px 0; margin:0 0 1.3em; color:var(--ink-2);
  }
  .article-body blockquote p:last-child{ margin-bottom:0; }
  .article-body img{ border-radius:14px; height:auto; margin:0 0 1.3em; }
  .article-body figure{ margin:0 0 1.3em; }
  .article-body figcaption{ text-align:center; font-size:13px; color:var(--muted); margin-top:10px; }
  .article-body a{ color:var(--brand); border-bottom:1px solid var(--brand-soft); }
  .article-body a:hover{ border-bottom-color:var(--brand); }
  .article-body table{
    width:100%; border-collapse:collapse; margin:0 0 1.3em;
    font-size:15.5px; border:1px solid var(--line);
  }
  .article-body th{ background:var(--accent-soft); color:var(--accent); text-align:left; font-weight:600; }
  .article-body th,.article-body td{ padding:12px 16px; border:1px solid var(--line); }
  .article-body pre{
    font-family:ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    background:var(--bg); border:1px solid var(--line); border-radius:12px;
    padding:18px 20px; overflow:auto; font-size:14.5px; line-height:1.7; margin:0 0 1.3em;
  }
  .article-body code{
    font-family:ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    background:var(--bg); border-radius:8px; padding:2px 6px; font-size:14.5px; color:var(--accent);
  }
  .article-body pre code{ background:none; padding:0; color:inherit; }

  .article-empty{
    max-width:760px; margin:0 auto; padding:56px 28px; text-align:center;
    border:1px dashed var(--line-strong); border-radius:var(--radius-card); background:var(--surface);
  }
  .article-empty p{ color:var(--muted); font-size:16px; margin-bottom:18px; }

  /* ---------- 侧栏 ---------- */
  .aside-card{
    background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-card);
    padding:20px; box-shadow:var(--shadow-1); margin-bottom:20px;
  }
  .aside-title{
    font-size:13px; font-weight:600; letter-spacing:.08em; color:var(--muted);
    margin-bottom:14px;
  }
  .toc-list{ display:flex; flex-direction:column; gap:2px; }
  .toc-link{
    display:block; font-size:14px; line-height:1.6; color:var(--ink-2);
    padding:7px 0 7px 12px; border-left:3px solid transparent;
    transition:color .18s var(--ease), border-color .18s var(--ease);
  }
  .toc-link:hover{ color:var(--brand); border-left-color:var(--brand-soft); }
  .toc-link.is-current{ color:var(--brand); border-left-color:var(--brand); font-weight:600; }
  .aside-link{
    display:block; font-size:14.5px; color:var(--ink-2); padding:9px 0;
    border-bottom:1px solid var(--line); transition:color .18s var(--ease), padding-left .18s var(--ease);
  }
  .aside-link:last-child{ border-bottom:0; }
  .aside-link:hover{ color:var(--brand); padding-left:4px; }

  /* ---------- 文末 ---------- */
  .article-foot{ padding:56px 0 0; }
  .tag-row{ display:flex; flex-wrap:wrap; gap:10px; padding-bottom:28px; border-bottom:1px solid var(--line); }
  .prevnext{ display:grid; grid-template-columns:1fr 1fr; gap:20px; padding:32px 0; border-bottom:1px solid var(--line); }
  .pn-card{
    display:flex; flex-direction:column; gap:6px; padding:20px 22px;
    background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-card);
    transition:transform .18s var(--ease), box-shadow .18s var(--ease), border-color .18s var(--ease);
  }
  .pn-card:hover{ transform:translateY(-2px); box-shadow:var(--shadow-2); border-color:var(--line-strong); }
  .pn-label{ font-size:12px; letter-spacing:.08em; color:var(--muted); }
  .pn-title{
    font-size:16px; font-weight:600; color:var(--ink);
    overflow:hidden; text-overflow:ellipsis; white-space:nowrap;
  }
  .pn-arrow{ font-size:14px; color:var(--brand); }

  .section-head{ display:flex; align-items:flex-end; justify-content:space-between; gap:24px; margin-bottom:32px; }
  .section-title{ font-size:clamp(22px,2.4vw,28px); line-height:1.3; font-weight:700; color:var(--ink); }
  .section-sub{ font-size:14px; color:var(--muted); margin-top:8px; }

  .mini-grid{ display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:24px; }
  .mini-card{
    display:flex; flex-direction:column; overflow:hidden; background:var(--surface);
    border:1px solid var(--line); border-radius:var(--radius-card); box-shadow:var(--shadow-1);
    transition:transform .18s var(--ease), box-shadow .18s var(--ease);
    position:relative;
  }
  .mini-card::before{
    content:""; position:absolute; top:0; left:0; right:0; height:2px;
    background:var(--brand); opacity:0; transition:opacity .18s var(--ease); z-index:2;
  }
  .mini-card:hover{ transform:translateY(-2px); box-shadow:var(--shadow-2); }
  .mini-card:hover::before{ opacity:1; }
  .mini-thumb{ aspect-ratio:16/9; background:var(--line); overflow:hidden; }
  .mini-thumb img{ width:100%; height:100%; object-fit:cover; transition:transform .18s var(--ease); }
  .mini-card:hover .mini-thumb img{ transform:scale(1.03); }
  .mini-body{ padding:18px 20px 20px; display:flex; flex-direction:column; gap:10px; }
  .mini-body h3{ font-size:16.5px; font-weight:600; line-height:1.5; color:var(--ink); }
  .mini-body p{ font-size:14.5px; line-height:1.75; color:var(--muted); }
  .mini-meta{ margin-top:auto; padding-top:10px; font-size:12.5px; color:var(--muted); display:flex; justify-content:space-between; align-items:center; }

  /* ---------- FAQ ---------- */
  .faq-wrap{ max-width:860px; margin:0 auto; }
  .faq-item{ border-bottom:1px solid var(--line); }
  .faq-q{
    width:100%; display:flex; align-items:center; justify-content:space-between; gap:20px;
    padding:20px 0; background:none; border:0; cursor:pointer; text-align:left;
    font-size:17px; font-weight:600; color:var(--ink); transition:color .18s var(--ease);
  }
  .faq-q:hover{ color:var(--brand); }
  .faq-plus{
    flex:none; width:18px; height:18px; position:relative;
    transition:transform .18s var(--ease);
  }
  .faq-plus::before,.faq-plus::after{
    content:""; position:absolute; background:var(--brand); border-radius:2px;
  }
  .faq-plus::before{ left:0; right:0; top:8px; height:2px; }
  .faq-plus::after{ top:0; bottom:0; left:8px; width:2px; }
  .faq-item.open .faq-plus{ transform:rotate(45deg); }
  .faq-a{
    max-height:0; overflow:hidden; transition:max-height .22s var(--ease);
  }
  .faq-a p{
    font-size:15.5px; line-height:1.8; color:var(--ink-2); padding:0 0 20px; max-width:760px;
  }

  /* ---------- CTA 带 ---------- */
  .cta-band{
    background:var(--ink); color:var(--dark-text); position:relative; overflow:hidden;
    padding:72px 0; margin-top:72px;
  }
  .cta-band::before{
    content:""; position:absolute; inset:0;
    background-image:linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px),
                     linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px);
    background-size:48px 48px; opacity:.9; pointer-events:none;
  }
  .cta-inner{ position:relative; display:flex; align-items:center; justify-content:space-between; gap:40px; flex-wrap:wrap; }
  .cta-copy{ max-width:640px; }
  .cta-copy h2{ font-size:clamp(24px,3vw,34px); line-height:1.3; font-weight:700; color:#fff; }
  .cta-copy p{ margin-top:14px; font-size:16px; line-height:1.85; color:rgba(242,239,233,.78); }
  .cta-actions{ display:flex; gap:14px; flex-wrap:wrap; }

  /* ---------- 页脚 ---------- */
  .site-footer{ background:var(--ink); color:rgba(242,239,233,.72); padding:64px 0 28px; }
  .footer-grid{ display:grid; grid-template-columns:1.6fr 1fr 1fr 1fr; gap:40px; }
  .footer-brand .brand-name{ color:#fff; }
  .footer-brand p{ margin-top:16px; font-size:14px; line-height:1.85; max-width:340px; }
  .footer-col h4{ font-size:14px; font-weight:600; color:#fff; margin-bottom:16px; letter-spacing:.04em; }
  .footer-col ul{ display:flex; flex-direction:column; gap:10px; }
  .footer-col a,.footer-col span{ font-size:14px; color:rgba(242,239,233,.72); transition:color .18s var(--ease); }
  .footer-col a:hover{ color:var(--brand); }
  .footer-bottom{
    margin-top:48px; padding-top:22px; border-top:1px solid var(--dark-line);
    display:flex; align-items:center; justify-content:space-between; gap:20px; flex-wrap:wrap;
    font-size:13px; color:rgba(242,239,233,.6);
  }
  .to-top{ color:rgba(242,239,233,.72); transition:color .18s var(--ease); }
  .to-top:hover{ color:var(--brand); }

  /* ---------- 动效 ---------- */
  .reveal{ opacity:0; transform:translateY(16px); transition:opacity .22s var(--ease), transform .22s var(--ease); }
  .reveal.in{ opacity:1; transform:none; }
  .hero-fade{ opacity:0; transform:translateY(12px); animation:heroUp .22s var(--ease) forwards; }
  .hero-fade.d1{ animation-delay:.06s; }
  .hero-fade.d2{ animation-delay:.12s; }
  .hero-fade.d3{ animation-delay:.18s; }
  @keyframes heroUp{ to{ opacity:1; transform:none; } }
  @media (prefers-reduced-motion: reduce){
    *{ animation-duration:.01ms !important; transition-duration:.01ms !important; }
  }

  /* ---------- 响应式 ---------- */
  @media (min-width:1280px){
    .article-layout{
      display:grid; grid-template-columns:minmax(0,760px) 240px;
      gap:48px; max-width:1048px; margin:0 auto; align-items:start;
    }
    .article-column{ max-width:none; margin:0; }
    .article-aside{ display:block; position:sticky; top:88px; }
  }
  @media (max-width:1279px){
    .article-aside{ display:block; max-width:760px; margin:40px auto 0; }
  }
  @media (max-width:1023px){
    .main-nav{ display:none; }
    .hamburger{ display:inline-flex; }
    .header-inner{ height:56px; gap:12px; }
    .header-link{ display:none; }
    .search-box{ width:auto; padding:0 12px; }
    .search-box .kbd,.search-box .search-text{ display:none; }
    .mini-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); }
    .footer-grid{ grid-template-columns:1fr 1fr; gap:32px; }
    .cta-band{ padding:56px 0; margin-top:56px; }
  }
  @media (max-width:767px){
    .container{ padding:0 20px; }
    .article-head-row{ flex-direction:column; gap:16px; }
    .share-group{ margin-left:0; }
    .prevnext{ grid-template-columns:1fr; }
    .mini-grid{ grid-template-columns:1fr; }
    .cta-inner{ flex-direction:column; align-items:flex-start; }
    .footer-grid{ grid-template-columns:1fr; gap:28px; }
    .section-head{ flex-direction:column; align-items:flex-start; gap:12px; }
  }
  @media (max-width:519px){
    .brand-name{ font-size:15.5px; }
    .header-right .btn-primary{ display:none; }
    .drawer-foot .btn{ width:100%; }
    .footer-bottom{ flex-direction:column; align-items:flex-start; }
  }

/* roulang page: category1 */
:root{
  --ink:#14161A;
  --ink-2:#4B4C50;
  --muted:#7A7873;
  --brand:#C4661F;
  --brand-dark:#9E4E13;
  --brand-soft:#FBEEE3;
  --accent:#2C5F55;
  --accent-soft:#E7EFEC;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --line:#E6E1D8;
  --line-strong:#D6CFC2;
  --dark-text:#F2EFE9;
  --dark-line:rgba(255,255,255,.12);
  --r-card:16px;
  --r-img:20px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(20,22,26,.04), 0 8px 24px rgba(20,22,26,.05);
  --sh-2:0 12px 32px rgba(20,22,26,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
html body{
  margin:0;
  padding:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button{font:inherit;cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,240,.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:22px;height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none;}
.brand-mark{width:28px;height:28px;flex:none;}
.brand-name{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.01em;}
.main-nav{display:flex;align-items:center;gap:2px;}
.nav-link{
  position:relative;display:inline-block;padding:8px 10px;font-size:14.5px;font-weight:500;
  color:var(--ink-2);border-radius:8px;transition:color .18s var(--ease),background .18s var(--ease);
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft);}
.nav-link.active{color:var(--brand);font-weight:600;}
.nav-link.active::after{
  content:"";position:absolute;left:10px;right:10px;bottom:1px;height:2px;
  background:var(--brand);border-radius:2px;
}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:14px;}
.command-search{
  display:flex;align-items:center;gap:8px;width:236px;height:38px;padding:0 10px 0 12px;
  border:1px solid var(--line);border-radius:var(--r-btn);background:var(--surface);
  color:var(--muted);transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.command-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft);}
.command-search svg{width:16px;height:16px;flex:none;color:var(--muted);}
.command-search input{
  width:100%;border:0;outline:0;background:transparent;font-size:13.5px;color:var(--ink);
}
.command-search input::placeholder{color:var(--muted);}
.kbd{
  flex:none;display:inline-flex;align-items:center;height:20px;padding:0 6px;
  border:1px solid var(--line);border-radius:6px;font-size:11px;color:var(--muted);
  letter-spacing:.02em;
}
.ghost-link{
  font-size:14px;font-weight:500;color:var(--brand);
  text-decoration:underline;text-underline-offset:5px;text-decoration-thickness:1px;
  text-decoration-color:rgba(196,102,31,.5);
}
.ghost-link:hover{color:var(--brand-dark);text-decoration-color:var(--brand-dark);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;
  border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-dark);}
.btn-primary .arrow{transition:transform .18s var(--ease);}
.btn-primary:hover .arrow{transform:translateX(3px);}
.btn-secondary{background:transparent;border-color:var(--line-strong);color:var(--ink);}
.btn-secondary:hover{border-color:var(--brand);background:var(--brand-soft);color:var(--brand-dark);}
.btn-light{background:transparent;border-color:rgba(255,255,255,.42);color:var(--dark-text);}
.btn-light:hover{background:var(--dark-text);color:var(--ink);border-color:var(--dark-text);}
.btn-nav{height:38px;padding:0 16px;font-size:14px;}
.nav-toggle{
  display:none;width:40px;height:38px;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:var(--r-btn);background:var(--surface);
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.mobile-drawer{
  display:none;position:fixed;left:0;right:0;top:56px;bottom:0;z-index:55;
  background:#fff;padding:20px 20px 32px;flex-direction:column;
}
.mobile-drawer.open{display:flex;}
.mobile-drawer .drawer-link{
  font-size:18px;font-weight:500;color:var(--ink-2);line-height:56px;
  border-bottom:1px solid var(--line);
}
.mobile-drawer .drawer-link.active{color:var(--brand);font-weight:600;}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:14px;padding-top:20px;}

/* ---------- 分类页 Hero ---------- */
.hero-cat{padding-bottom:8px;}
.cat-banner{
  position:relative;margin-top:26px;border-radius:var(--r-img);overflow:hidden;
  box-shadow:var(--sh-1);background:linear-gradient(180deg,var(--line),var(--brand-soft));
  animation:fadeUp .5s var(--ease) both;
}
.cat-banner img{width:100%;height:clamp(250px,25vw,330px);object-fit:cover;}
.banner-mask{
  position:absolute;inset:0;
  background:linear-gradient(96deg,rgba(20,22,26,.76) 0%,rgba(20,22,26,.5) 52%,rgba(20,22,26,.32) 100%);
}
.banner-text{position:absolute;inset:auto 0 0 0;padding:clamp(22px,3.4vw,44px);max-width:900px;}
.crumb{font-size:13px;letter-spacing:.06em;color:var(--muted);display:flex;flex-wrap:wrap;gap:8px;}
.crumb-on-dark{color:rgba(242,239,233,.78);margin-bottom:14px;}
.crumb a:hover{color:var(--brand);}
.crumb .sep{opacity:.6;}
.banner-text h1{
  font-size:clamp(28px,4.4vw,50px);line-height:1.16;font-weight:800;letter-spacing:-.02em;
  color:#fff;
}
.cat-intro{padding:36px 0 0;animation:fadeUp .5s .06s var(--ease) both;}
.cat-intro p{
  margin:0 0 1.1em;max-width:860px;font-size:17px;line-height:1.85;color:var(--ink-2);
}
.anchor-nav{
  display:flex;flex-wrap:wrap;gap:4px 24px;margin-top:26px;
  border-bottom:1px solid var(--line);
}
.anchor-link{
  padding:10px 0;font-size:14.5px;font-weight:500;color:var(--ink-2);
  border-bottom:2px solid transparent;transition:color .18s var(--ease),border-color .18s var(--ease);
}
.anchor-link:hover{color:var(--brand);}
.anchor-link.active{color:var(--brand);font-weight:600;border-bottom-color:var(--brand);}

/* ---------- 主体双栏 ---------- */
.cat-layout{
  display:grid;grid-template-columns:260px minmax(0,1fr);gap:56px;
  padding:56px 0 96px;align-items:start;
}
.side-toc{position:sticky;top:88px;}
.toc-title{
  font-size:12.5px;font-weight:600;letter-spacing:.1em;color:var(--muted);margin:0 0 12px;
}
.toc-link{
  display:block;padding:10px 0 10px 14px;font-size:15px;color:var(--ink-2);
  border-left:3px solid transparent;transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
}
.toc-link:hover{color:var(--brand);}
.toc-link.active{
  color:var(--ink);font-weight:600;border-left-color:var(--brand);
  background:linear-gradient(90deg,var(--brand-soft),rgba(251,238,227,0));
}
.toc-card{
  margin-top:26px;padding:20px;border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--surface);box-shadow:var(--sh-1);
}
.toc-card h3{font-size:15px;font-weight:600;margin-bottom:8px;}
.toc-card p{margin:0 0 12px;font-size:13.5px;line-height:1.8;color:var(--muted);}
.toc-card a{font-size:13.5px;font-weight:600;color:var(--brand);}
.toc-card a:hover{color:var(--brand-dark);}

.cat-section{padding-bottom:56px;margin-bottom:56px;border-bottom:1px solid var(--line);}
.cat-section:last-of-type{border-bottom:0;margin-bottom:0;padding-bottom:24px;}
.rule{width:32px;height:3px;background:var(--brand);border-radius:2px;margin-bottom:16px;}
.sec-head h2{
  font-size:clamp(24px,2.6vw,33px);line-height:1.24;font-weight:700;letter-spacing:-.01em;
}
.sec-sub{margin-top:10px;font-size:14px;color:var(--muted);letter-spacing:.04em;}
.cat-section > p{margin:28px 0 0;color:var(--ink-2);max-width:820px;}
.cat-section > p + p{margin-top:1.1em;}

.check-list{margin-top:26px;display:grid;gap:2px;}
.check-list li{
  position:relative;padding:10px 0 10px 22px;font-size:16px;color:var(--ink-2);
  border-bottom:1px dashed var(--line);
}
.check-list li:last-child{border-bottom:0;}
.check-list li::before{
  content:"";position:absolute;left:0;top:1.5em;width:10px;height:2px;background:var(--brand);border-radius:2px;
}
.figure{margin:30px 0 0;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);background:var(--line);}
.figure img{width:100%;height:clamp(190px,25vw,300px);object-fit:cover;}
.figure figcaption{padding:12px 18px;font-size:13px;color:var(--muted);background:var(--surface);border-top:1px solid var(--line);text-align:center;}

.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:30px;}
.card{
  position:relative;overflow:hidden;padding:26px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease);
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--brand);
  opacity:0;transition:opacity .18s var(--ease);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.card:hover::before{opacity:1;}
.card .idx{
  display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:999px;
  background:var(--accent-soft);color:var(--accent);font-size:13px;font-weight:700;margin-bottom:14px;
}
.card h3{font-size:19px;font-weight:600;line-height:1.4;margin-bottom:10px;}
.card p{margin:0;font-size:15px;line-height:1.75;color:var(--muted);}

.num-list{margin-top:30px;border-top:1px solid var(--line);}
.num-item{display:flex;gap:20px;padding:22px 0;border-bottom:1px solid var(--line);}
.num-badge{
  flex:none;display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border:1px solid var(--line-strong);border-radius:999px;
  font-size:15px;font-weight:700;color:var(--brand);
}
.num-item h3{font-size:18px;font-weight:600;margin-bottom:6px;}
.num-item p{margin:0;font-size:15px;line-height:1.75;color:var(--muted);max-width:640px;}

.spec-list{margin-top:30px;border-top:1px solid var(--line);}
.spec-row{
  display:grid;grid-template-columns:180px 220px minmax(0,1fr);gap:20px;align-items:baseline;
  padding:20px 4px;border-bottom:1px solid var(--line);transition:background .18s var(--ease);
}
.spec-row:hover{background:var(--brand-soft);}
.spec-row .k{font-size:16px;font-weight:600;color:var(--ink);}
.spec-row .v{font-size:15px;color:var(--accent);font-weight:500;}
.spec-row .d{font-size:15px;color:var(--ink-2);}

.update-list{margin-top:26px;border-top:1px solid var(--line);}
.update-row{
  display:flex;gap:16px;align-items:baseline;padding:16px 4px;border-bottom:1px solid var(--line);
  font-size:15px;color:var(--ink-2);
}
.update-row .tag{
  flex:none;display:inline-block;padding:2px 10px;border-radius:999px;
  background:var(--accent-soft);color:var(--accent);font-size:12px;letter-spacing:.06em;font-weight:600;
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin-top:26px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  display:flex;justify-content:space-between;align-items:center;gap:20px;
  padding:20px 0;font-size:17px;font-weight:600;color:var(--ink);list-style:none;cursor:pointer;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex:none;font-size:22px;line-height:1;color:var(--brand);
  transition:transform .18s var(--ease);
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-body{padding:0 0 22px;font-size:15.5px;line-height:1.8;color:var(--ink-2);max-width:760px;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--ink);color:var(--dark-text);
  padding:72px 0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:44px 44px;
}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;}
.cta-inner h2{font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.24;color:#fff;max-width:640px;}
.cta-inner p{margin:14px 0 0;font-size:16px;line-height:1.8;color:rgba(242,239,233,.72);max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(242,239,233,.78);border-top:1px solid var(--dark-line);}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px;padding:64px 0 40px;}
.footer-brand .brand-name{color:#fff;}
.footer-brand p{margin:16px 0 0;font-size:14.5px;line-height:1.85;color:rgba(242,239,233,.66);max-width:360px;}
.footer-col h4{font-size:14.5px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-col li{margin-bottom:10px;font-size:14.5px;color:rgba(242,239,233,.66);}
.footer-col a{transition:color .18s var(--ease);}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0 30px;border-top:1px solid var(--dark-line);
  font-size:13px;color:rgba(242,239,233,.55);
}
.to-top{color:rgba(242,239,233,.72);font-weight:500;}
.to-top:hover{color:var(--brand);}

/* ---------- 动效 ---------- */
@keyframes fadeUp{from{opacity:0;transform:translateY(12px);}to{opacity:1;transform:none;}}
.reveal{opacity:0;transform:translateY(16px);transition:opacity .45s var(--ease),transform .45s var(--ease);}
.reveal.in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .main-nav{display:none;}
  .command-search{display:none;}
  .ghost-link{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-wrap{height:56px;}
  .site-header{height:56px;}
  .cat-layout{grid-template-columns:1fr;gap:36px;padding:40px 0 72px;}
  .side-toc{position:static;}
  .toc-card{max-width:420px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:52px 0 32px;}
  .cta-band{padding:60px 0;}
}
@media (max-width:760px){
  .card-grid{grid-template-columns:1fr;}
  .spec-row{grid-template-columns:1fr;gap:6px;padding:18px 2px;}
  .spec-row .v{margin-bottom:2px;}
}
@media (max-width:640px){
  .container{padding:0 20px;}
  .brand-name{font-size:16px;}
  html body{font-size:16.5px;}
  .cat-banner img{height:330px;}
  .banner-text{padding:22px 20px;}
  .cat-section{padding-bottom:44px;margin-bottom:44px;}
  .num-item{gap:14px;}
  .num-badge{width:38px;height:38px;font-size:14px;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .update-row{flex-direction:column;gap:6px;}
}

/* roulang page: category2 */
:root{
    --ink:#14161A;
    --ink-2:#4B4C50;
    --muted:#7A7873;
    --brand:#C4661F;
    --brand-dark:#9E4E13;
    --brand-soft:#FBEEE3;
    --accent:#2C5F55;
    --accent-soft:#E7EFEC;
    --bg:#F7F5F0;
    --surface:#FFFFFF;
    --line:#E6E1D8;
    --line-strong:#D6CFC2;
    --dark-text:#F2EFE9;
    --radius-card:16px;
    --radius-lg:20px;
    --radius-btn:10px;
    --shadow-1:0 1px 2px rgba(20,22,26,.04), 0 8px 24px rgba(20,22,26,.05);
    --shadow-2:0 12px 32px rgba(20,22,26,.10);
    --ease:cubic-bezier(.22,.61,.36,1);
  }

  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
    font-size:17px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
  }
  img{display:block;max-width:100%;height:auto}
  a{color:inherit;text-decoration:none}
  button,input{font:inherit;color:inherit}
  h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink)}
  p{margin:0 0 1.25em}
  p:last-child{margin-bottom:0}
  ul{margin:0;padding:0;list-style:none}
  :focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

  .container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
  .section{padding:112px 0}
  .section--tight{padding:88px 0}

  .section-head{max-width:900px}
  .section-head .kicker{display:block;width:32px;height:3px;background:var(--brand);border-radius:2px;margin-bottom:20px}
  .section-head h2{font-size:clamp(26px,3.4vw,40px);line-height:1.2;letter-spacing:-.01em}
  .section-head .lead{margin-top:18px;font-size:16.5px;line-height:1.85;color:var(--ink-2);max-width:760px}
  .section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;max-width:none}

  /* ---------- 导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(247,245,240,.86);
    -webkit-backdrop-filter:blur(12px);
    backdrop-filter:blur(12px);
    border-bottom:1px solid var(--line);
  }
  .header-inner{display:flex;align-items:center;gap:22px;height:64px}
  .brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
  .brand-mark{width:28px;height:28px;flex:0 0 28px}
  .brand-name{font-size:17px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
  .main-nav{display:flex;align-items:center;gap:22px;flex:1 1 auto;min-width:0}
  .nav-link{
    position:relative;padding:6px 0;font-size:15px;font-weight:500;color:var(--ink-2);
    white-space:nowrap;transition:color .18s var(--ease);
  }
  .nav-link::after{
    content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--brand);
    transform:scaleX(0);transform-origin:left;transition:transform .18s var(--ease);
  }
  .nav-link:hover{color:var(--brand)}
  .nav-link:hover::after{transform:scaleX(1)}
  .nav-link.active{color:var(--brand);font-weight:600}
  .nav-link.active::after{transform:scaleX(1)}
  .header-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto}
  .command-search{
    display:flex;align-items:center;gap:8px;width:240px;height:38px;padding:0 10px;
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-btn);
    transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
  }
  .command-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}
  .command-search svg{width:16px;height:16px;flex:0 0 16px;stroke:var(--muted)}
  .command-search input{width:100%;border:0;background:transparent;outline:0;font-size:14px}
  .command-search input::placeholder{color:var(--muted)}
  .kbd{
    flex:0 0 auto;font-size:11px;line-height:1.5;color:var(--muted);
    border:1px solid var(--line);border-radius:999px;padding:1px 7px;
  }
  .ghost-link{
    font-size:14px;font-weight:600;color:var(--brand);
    border-bottom:1px solid transparent;transition:border-color .18s var(--ease);
    white-space:nowrap;
  }
  .ghost-link:hover{border-bottom-color:var(--brand)}

  .nav-toggle{
    display:none;align-items:center;justify-content:center;width:40px;height:40px;
    border:1px solid var(--line);border-radius:10px;background:var(--surface);cursor:pointer;
  }
  .nav-toggle span{position:relative;display:block;width:18px;height:2px;background:var(--ink);border-radius:2px}
  .nav-toggle span::before,.nav-toggle span::after{
    content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
  }
  .nav-toggle span::before{top:-6px}
  .nav-toggle span::after{top:6px}

  .mobile-drawer{
    display:none;position:fixed;left:0;right:0;top:56px;bottom:0;z-index:70;
    background:#fff;padding:12px 20px 40px;overflow-y:auto;border-top:1px solid var(--line);
  }
  .mobile-drawer.open{display:block}
  .mobile-drawer a{display:block;font-size:18px;line-height:56px;border-bottom:1px solid var(--line);color:var(--ink)}
  .mobile-drawer a.active{color:var(--brand);font-weight:600}
  .mobile-drawer .drawer-search{margin-top:20px}
  .mobile-drawer .drawer-cta{margin-top:16px;width:100%}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 20px;border-radius:var(--radius-btn);
    border:1px solid transparent;font-size:15px;font-weight:600;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 .arrow{transition:transform .18s var(--ease)}
  .btn-primary{background:var(--brand);color:#fff}
  .btn-primary:hover{background:var(--brand-dark)}
  .btn-primary:hover .arrow{transform:translateX(3px)}
  .btn-secondary{background:transparent;border-color:var(--line-strong);color:var(--ink)}
  .btn-secondary:hover{border-color:var(--brand);background:var(--brand-soft);color:var(--brand-dark)}
  .btn-outline-light{background:transparent;border-color:rgba(255,255,255,.42);color:var(--dark-text)}
  .btn-outline-light:hover{background:rgba(255,255,255,.10);border-color:#fff}
  .btn-sm{height:38px;padding:0 16px;font-size:14px}
  .btn-block{width:100%}

  .badge{
    display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;
    letter-spacing:.06em;padding:4px 10px;border-radius:999px;
    background:var(--brand-soft);color:var(--brand-dark);
  }
  .badge-accent{background:var(--accent-soft);color:var(--accent)}

  /* ---------- 顶部大图带 ---------- */
  .page-banner{position:relative;overflow:hidden;border-bottom:1px solid var(--line);background:var(--ink)}
  .page-banner__bg{
    position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-2.webp');
    background-size:cover;background-position:center;
  }
  .page-banner__veil{position:absolute;inset:0;background:rgba(20,22,26,.74)}
  .page-banner__inner{position:relative;z-index:2;padding:76px 0 0;color:var(--dark-text)}
  .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;letter-spacing:.06em;color:rgba(242,239,233,.68)}
  .breadcrumb a{transition:color .18s var(--ease)}
  .breadcrumb a:hover{color:#fff}
  .breadcrumb .sep{opacity:.5}
  .page-banner h1{
    margin-top:26px;color:#fff;font-weight:800;font-size:clamp(34px,4.6vw,56px);
    line-height:1.12;letter-spacing:-.02em;max-width:900px;
  }
  .page-banner .banner-lead{
    margin-top:20px;max-width:760px;font-size:16.5px;line-height:1.85;color:rgba(242,239,233,.82);
  }
  .banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
  .banner-tags .tag{
    font-size:12px;letter-spacing:.06em;padding:5px 12px;border-radius:999px;
    border:1px solid rgba(255,255,255,.22);color:rgba(242,239,233,.88);
  }
  .anchor-nav{
    display:flex;flex-wrap:wrap;gap:26px;margin-top:44px;padding:18px 0 20px;
    border-top:1px solid rgba(255,255,255,.16);
  }
  .anchor-nav a{
    position:relative;padding-bottom:6px;font-size:14px;color:rgba(242,239,233,.72);
    transition:color .18s var(--ease);
  }
  .anchor-nav a:hover{color:#fff}
  .anchor-nav a.is-active{color:#fff}
  .anchor-nav a.is-active::after{
    content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--brand);
  }

  /* ---------- 卡片 ---------- */
  .card{
    position:relative;background:var(--surface);border:1px solid var(--line);
    border-radius:var(--radius-card);box-shadow:var(--shadow-1);overflow:hidden;
    transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  }
  .card::before{
    content:"";position:absolute;left:0;right:0;top:0;height:2px;background:var(--brand);
    transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);z-index:3;
  }
  .card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--line-strong)}
  .card:hover::before{transform:scaleX(1)}
  .card-body{padding:28px 28px 30px}
  .card-body h3{font-size:21px;font-weight:600;line-height:1.35;margin-bottom:12px}
  .card-body p{font-size:15px;line-height:1.75;color:var(--ink-2);margin-bottom:14px}
  .card-media{
    position:relative;overflow:hidden;background:var(--brand-soft);
    border-radius:var(--radius-card) var(--radius-card) 0 0;
  }
  .card-media img{width:100%;height:100%;object-fit:cover;transition:transform .22s var(--ease)}
  .card:hover .card-media img{transform:scale(1.03)}
  .ratio-16-9{aspect-ratio:16/9}
  .ratio-4-3{aspect-ratio:4/3}
  .ratio-3-2{aspect-ratio:3/2}
  .card-link{
    display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);
  }
  .card-link .arrow{transition:transform .18s var(--ease)}
  .card:hover .card-link .arrow{transform:translateX(3px)}

  /* ---------- 两列对照 ---------- */
  .compare-wrap{
    display:grid;grid-template-columns:1fr 1fr;gap:0;
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
    box-shadow:var(--shadow-1);overflow:hidden;
  }
  .compare-col{padding:36px 34px 38px}
  .compare-col + .compare-col{border-left:1px solid var(--line)}
  .compare-col h3{font-size:22px;font-weight:600;margin-bottom:8px}
  .compare-col .col-note{font-size:14px;color:var(--muted);margin-bottom:22px}
  .compare-row{display:flex;gap:14px;padding:14px 0;border-top:1px solid var(--line)}
  .compare-row:last-child{border-bottom:0;padding-bottom:0}
  .compare-row .mark{
    flex:0 0 18px;width:18px;height:18px;margin-top:6px;border-radius:4px;
    background:var(--accent-soft);color:var(--accent);
    display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;
  }
  .compare-row strong{display:block;font-size:16px;font-weight:600;margin-bottom:4px}
  .compare-row span{font-size:14.5px;line-height:1.75;color:var(--ink-2)}

  /* ---------- 双列宽窄卡片 ---------- */
  .duo-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:24px;margin-top:44px}
  .duo-grid--reverse{grid-template-columns:1fr 1.4fr}
  .duo-copy{padding:32px 34px 36px}
  .duo-copy h3{font-size:22px;font-weight:600;margin-bottom:14px}
  .duo-copy p{font-size:15.5px;line-height:1.8;color:var(--ink-2);margin-bottom:14px}
  .mini-list{margin-top:18px}
  .mini-list li{
    position:relative;padding-left:18px;font-size:15px;line-height:1.85;color:var(--ink-2);
  }
  .mini-list li::before{
    content:"";position:absolute;left:0;top:12px;width:9px;height:2px;background:var(--brand);
  }

  /* ---------- accent 重色区 ---------- */
  .accent-zone{
    background:var(--accent);color:var(--dark-text);
    border-radius:var(--radius-lg);padding:56px;margin-top:0;
  }
  .accent-zone .kicker{display:block;width:32px;height:3px;background:var(--brand);border-radius:2px;margin-bottom:20px}
  .accent-zone h2{color:#fff;font-size:clamp(24px,3vw,34px);line-height:1.25}
  .accent-zone .lead{margin-top:16px;max-width:720px;font-size:16px;line-height:1.85;color:rgba(242,239,233,.82)}
  .accent-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;margin-top:40px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.16);border-radius:var(--radius-card);overflow:hidden}
  .accent-card{background:var(--accent);padding:28px 26px 30px}
  .accent-card .num{
    font-size:13px;letter-spacing:.1em;color:rgba(242,239,233,.6);font-weight:600;
  }
  .accent-card h3{color:#fff;font-size:19px;font-weight:600;margin:12px 0 10px}
  .accent-card p{font-size:14.5px;line-height:1.8;color:rgba(242,239,233,.78);margin:0}

  /* ---------- 时间线 ---------- */
  .timeline{position:relative;margin:44px 0 0;padding:0;list-style:none;max-width:900px}
  .timeline::before{
    content:"";position:absolute;left:19px;top:14px;bottom:14px;width:1px;background:var(--line-strong);
  }
  .timeline li{position:relative;padding:0 0 30px 64px}
  .timeline li:last-child{padding-bottom:0}
  .timeline .node{
    position:absolute;left:8px;top:2px;width:22px;height:22px;border-radius:50%;
    background:var(--surface);border:1px solid var(--line-strong);
    display:flex;align-items:center;justify-content:center;
  }
  .timeline .node i{display:block;width:10px;height:10px;border-radius:50%;background:var(--brand)}
  .timeline h3{font-size:19px;font-weight:600;margin-bottom:8px;display:flex;align-items:baseline;gap:10px}
  .timeline h3 em{
    font-style:normal;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--brand);
  }
  .timeline p{font-size:15.5px;line-height:1.8;color:var(--ink-2);max-width:760px;margin:0}

  /* ---------- 行式规格列表 ---------- */
  .spec-list{margin-top:36px;border-top:1px solid var(--line)}
  .spec-row{
    display:grid;grid-template-columns:210px 1fr 170px;gap:20px;
    padding:18px 6px;border-bottom:1px solid var(--line);align-items:center;
    transition:background-color .18s var(--ease);
  }
  .spec-row:hover{background:rgba(196,102,31,.045)}
  .spec-row .spec-key{font-size:15.5px;font-weight:600}
  .spec-row .spec-val{font-size:15px;line-height:1.75;color:var(--ink-2)}
  .spec-row .spec-tag{justify-self:end}
  .spec-row .spec-tag span{
    display:inline-block;font-size:12px;padding:4px 10px;border-radius:999px;
    background:var(--accent-soft);color:var(--accent);letter-spacing:.04em;font-weight:600;
  }

  /* ---------- 更新提示条 ---------- */
  .notice-bar{
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
    box-shadow:var(--shadow-1);padding:24px 28px;
  }
  .notice-bar .notice-text{font-size:15.5px;line-height:1.8;color:var(--ink-2);max-width:760px}
  .notice-bar .notice-text strong{color:var(--ink);font-weight:600}

  /* ---------- FAQ ---------- */
  .faq-list{max-width:860px;margin:36px auto 0;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:20px;
    padding:22px 4px;background:none;border:0;text-align:left;cursor:pointer;
    font-size:17px;font-weight:600;color:var(--ink);transition:color .18s var(--ease);
  }
  .faq-q:hover{color:var(--brand)}
  .faq-icon{position:relative;width:16px;height:16px;flex:0 0 16px;transition:transform .2s var(--ease)}
  .faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand);border-radius:2px}
  .faq-icon::before{left:0;top:7px;width:16px;height:2px}
  .faq-icon::after{left:7px;top:0;width:2px;height:16px}
  .faq-item.open .faq-icon{transform:rotate(45deg)}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease)}
  .faq-a p{
    margin:0;padding:0 4px 24px;max-width:760px;
    font-size:15.5px;line-height:1.8;color:var(--ink-2);
  }

  /* ---------- CTA 带 ---------- */
  .cta-band{position:relative;background:var(--ink);color:var(--dark-text);padding:72px 0;overflow:hidden}
  .cta-band::before{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),
                     linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);
    background-size:48px 48px;
  }
  .cta-inner{position:relative;z-index:2;display:flex;align-items:flex-end;justify-content:space-between;gap:40px}
  .cta-inner h2{color:#fff;font-size:clamp(26px,3.4vw,40px);line-height:1.2;max-width:640px}
  .cta-inner .cta-note{margin-top:16px;max-width:620px;font-size:16px;line-height:1.85;color:rgba(242,239,233,.78)}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex:0 0 auto}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--ink);color:#C9C5BD;padding:64px 0 28px;border-top:1px solid rgba(255,255,255,.09)}
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
  .footer-brand .brand-name{color:#fff}
  .footer-brand p{margin-top:16px;font-size:14.5px;line-height:1.8;color:#9C9890;max-width:340px}
  .footer-col h4{font-size:14px;letter-spacing:.08em;color:#F2EFE9;margin-bottom:18px;font-weight:600}
  .footer-col ul li{margin-bottom:12px}
  .footer-col a,.footer-col span{font-size:14.5px;line-height:1.7;color:#9C9890;transition:color .18s var(--ease)}
  .footer-col a:hover{color:var(--brand)}
  .footer-bottom{
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
    margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.09);
    font-size:13.5px;color:#8A867F;
  }
  .to-top{color:#C9C5BD;transition:color .18s var(--ease)}
  .to-top:hover{color:var(--brand)}

  /* ---------- 入场动效 ---------- */
  .reveal{opacity:0;transform:translateY(16px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
  .reveal.is-in{opacity:1;transform:translateY(0)}
  .hero-seq{opacity:0;transform:translateY(12px);animation:heroUp .55s var(--ease) forwards}
  .hero-seq:nth-child(1){animation-delay:.05s}
  .hero-seq:nth-child(2){animation-delay:.11s}
  .hero-seq:nth-child(3){animation-delay:.17s}
  .hero-seq:nth-child(4){animation-delay:.23s}
  @keyframes heroUp{to{opacity:1;transform:translateY(0)}}
  @media (prefers-reduced-motion:reduce){
    .reveal,.hero-seq{opacity:1;transform:none;animation:none;transition:none}
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1023px){
    .main-nav{display:none}
    .command-search{display:none}
    .ghost-link{display:none}
    .header-actions .btn{display:none}
    .nav-toggle{display:flex}
    .header-inner{height:56px;justify-content:space-between}
    .section{padding:72px 0}
    .section--tight{padding:64px 0}
    .page-banner__inner{padding:52px 0 0}
    .duo-grid,.duo-grid--reverse{grid-template-columns:1fr}
    .accent-cards{grid-template-columns:1fr}
    .accent-zone{padding:40px 28px}
    .cta-inner{flex-direction:column;align-items:flex-start}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
    .spec-row{grid-template-columns:1fr;gap:8px}
    .spec-row .spec-tag{justify-self:start}
  }
  @media (max-width:767px){
    body{font-size:16.5px}
    .container{padding:0 20px}
    .compare-wrap{grid-template-columns:1fr}
    .compare-col + .compare-col{border-left:0;border-top:1px solid var(--line)}
    .compare-col{padding:28px 24px 30px}
    .section{padding:56px 0}
    .section--tight{padding:52px 0}
    .card-body{padding:22px 22px 24px}
    .duo-copy{padding:24px 22px 26px}
    .notice-bar{padding:20px}
    .accent-zone{padding:32px 22px}
    .footer-grid{grid-template-columns:1fr}
    .footer-bottom{flex-direction:column;align-items:flex-start}
    .page-banner h1{font-size:clamp(28px,7vw,38px)}
  }