/* roulang page: index */
:root{
  --ink:#16130F;
  --accent:#1F4B3F;
  --accent-dark:#173A30;
  --accent-2:#B07A3C;
  --paper:#F7F4EE;
  --surface:#FFFFFF;
  --line:#E2DCD2;
  --line-strong:#CFC6B8;
  --muted:#6B6459;
  --success:#2F6B4F;
  --warn:#B4531E;
  --error:#B0372B;
  --radius-card:10px;
  --radius-btn:6px;
  --radius-img:8px;
  --shadow-1:0 1px 2px rgba(22,19,15,.04);
  --shadow-2:0 8px 24px rgba(22,19,15,.07);
  --container:1200px;
  --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(--paper);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(31,75,63,.16);}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.eyebrow{
  font-size:13px;letter-spacing:.14em;color:var(--accent-2);
  font-weight:600;margin-bottom:14px;display:block;
}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head h2{
  font-size:clamp(24px,2.4vw,30px);
  line-height:1.32;font-weight:700;letter-spacing:-.3px;
}
.section-head p{margin-top:16px;color:var(--muted);font-size:16px;line-height:1.9;}
.hr{height:1px;background:var(--line);border:0;margin:0;}

/* ---------- 按钮与链接 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);
  font-size:14.5px;font-weight:600;line-height:1;
  padding:14px 26px;border:1px solid transparent;
  cursor:pointer;transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent);}
.btn-primary:hover{background:var(--accent-dark);border-color:var(--accent-dark);transform:translateY(-1px);}
.btn-primary:active{transform:none;}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:rgba(22,19,15,.05);transform:translateY(-1px);}
.btn-ghost:active{transform:none;}
.btn-sm{padding:10px 18px;font-size:13.5px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--ink);
  border-bottom:1px solid transparent;padding-bottom:2px;
  transition:color .18s ease,border-color .18s ease;
}
.link-arrow .arw{transition:transform .2s var(--ease);display:inline-block;}
.link-arrow:hover{color:var(--accent);border-bottom-color:var(--accent);}
.link-arrow:hover .arw{transform:translateX(3px);}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--paper);
  border-bottom:1px solid transparent;
  transition:background .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.site-header.is-stuck{
  background:rgba(247,244,238,.94);
  -webkit-backdrop-filter:saturate(120%) blur(8px);
  backdrop-filter:saturate(120%) blur(8px);
  border-bottom-color:var(--line);
  box-shadow:0 4px 16px rgba(22,19,15,.06);
}
.header-top{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  height:74px;transition:height .2s ease;
}
.site-header.is-stuck .header-top{height:62px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:20px;font-weight:700;letter-spacing:-.3px;}
.site-header.is-stuck .brand{font-size:18px;}
.brand-mark{width:9px;height:9px;border-radius:2px;background:var(--accent);flex:none;}
.brand small{font-size:12px;font-weight:500;color:var(--muted);margin-left:6px;letter-spacing:.04em;}
.header-tools{display:flex;align-items:center;gap:14px;}
.icon-btn{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:6px;background:var(--surface);
  cursor:pointer;transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.icon-btn:hover{border-color:var(--line-strong);color:var(--accent);}
.icon-btn svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.8;}
.nav-toggle{display:none;}
.header-nav{border-top:1px solid var(--line);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:52px;}
.main-nav{display:flex;align-items:center;gap:28px;}
.main-nav a{
  position:relative;font-size:14px;font-weight:500;color:var(--ink);
  padding:14px 0;transition:color .18s ease;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:100%;bottom:10px;height:2px;
  background:var(--accent);transition:right .22s var(--ease);
}
.main-nav a:hover{color:var(--ink);}
.main-nav a:hover::after{right:0;}
.main-nav a.active{color:var(--accent);font-weight:600;}
.main-nav a.active::after{right:0;}
.nav-tags{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);}
.nav-tags .tags-label{font-size:12px;letter-spacing:.12em;color:var(--accent-2);font-weight:600;}
.tag{
  display:inline-block;border:1px solid var(--line);border-radius:4px;
  padding:3px 9px;font-size:12.5px;color:var(--muted);background:transparent;
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.tag:hover{border-color:var(--accent);color:var(--accent);background:rgba(31,75,63,.05);}
.search-bar{
  display:none;border-top:1px solid var(--line);background:var(--surface);
}
.search-bar.open{display:block;}
.search-inner{display:flex;align-items:center;gap:12px;padding:14px 0;}
.search-inner input{
  flex:1;border:0;border-bottom:1px solid var(--line);
  background:transparent;padding:8px 2px;font-size:15px;color:var(--ink);
  outline:none;transition:border-color .18s ease;
}
.search-inner input:focus{border-bottom-color:var(--accent);}
.search-inner input::placeholder{color:var(--muted);}
.search-hint{font-size:13px;color:var(--muted);}

/* 移动抽屉 */
.drawer-scrim{
  position:fixed;inset:0;background:rgba(22,19,15,.46);z-index:70;
  opacity:0;pointer-events:none;transition:opacity .28s ease;
}
.drawer-scrim.open{opacity:1;pointer-events:auto;}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);
  background:var(--paper);z-index:80;padding:20px;
  transform:translateX(102%);transition:transform .3s var(--ease);
  display:none;flex-direction:column;gap:18px;overflow-y:auto;
  border-left:1px solid var(--line);
}
.nav-drawer.open{transform:none;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-title{font-size:15px;font-weight:700;}
.drawer-search input{
  width:100%;border:1px solid var(--line);border-radius:6px;background:var(--surface);
  padding:11px 12px;font-size:14px;outline:none;
}
.drawer-search input:focus{border-color:var(--accent);}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  padding:14px 2px;border-bottom:1px solid var(--line);font-size:15px;font-weight:500;
}
.drawer-nav a.active{color:var(--accent);font-weight:600;}
.drawer-tags{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px;}
.drawer-tags .tag{white-space:nowrap;}

/* ---------- Hero ---------- */
.hero{padding:72px 0 96px;}
.hero-grid{
  display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:56px;align-items:center;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid rgba(31,75,63,.28);background:rgba(31,75,63,.06);
  color:var(--accent);border-radius:4px;padding:5px 12px;
  font-size:12.5px;font-weight:600;letter-spacing:.04em;margin-bottom:22px;
}
.hero h1{
  font-size:clamp(32px,4vw,48px);line-height:1.16;letter-spacing:-.5px;
  font-weight:700;max-width:16em;
}
.hero-sub{
  margin-top:20px;font-size:17px;line-height:1.9;color:var(--muted);max-width:32em;
}
.points{
  display:flex;flex-wrap:wrap;gap:12px 30px;margin-top:28px;
}
.points li{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--ink);}
.points .num{
  font-family:ui-serif,Georgia,"Songti SC","Noto Serif SC",serif;
  font-size:13px;font-weight:700;color:var(--accent-2);letter-spacing:.06em;
}
.hero-actions{display:flex;align-items:center;gap:24px;flex-wrap:wrap;margin-top:36px;}
.hero-media{position:relative;z-index:0;}
.hero-media::before{
  content:"";position:absolute;inset:18px -18px -18px 18px;
  border:1px solid var(--accent-2);border-radius:var(--radius-img);z-index:-1;
}
.hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-img);
}
.hero-media::after{
  content:"";position:absolute;inset:0;border-radius:var(--radius-img);
  background:rgba(22,19,15,.14);pointer-events:none;
}

/* ---------- 常见卡点 ---------- */
.pain-grid{display:grid;grid-template-columns:minmax(0,3fr) minmax(0,9fr);gap:56px;}
.pain-left h2{font-size:clamp(24px,2.4vw,30px);line-height:1.35;font-weight:700;letter-spacing:-.3px;}
.pain-left p{margin-top:16px;color:var(--muted);font-size:15px;line-height:1.9;}
.pain-list li{
  display:grid;grid-template-columns:56px minmax(0,1fr);gap:20px;
  padding:26px 0;border-top:1px solid var(--line);
}
.pain-list li:last-child{border-bottom:1px solid var(--line);}
.pain-num{
  font-family:ui-serif,Georgia,"Songti SC","Noto Serif SC",serif;
  font-size:22px;font-weight:700;color:var(--accent-2);line-height:1.35;letter-spacing:.04em;
}
.pain-list h3{font-size:19px;font-weight:600;line-height:1.5;}
.pain-list p{margin-top:8px;color:var(--muted);font-size:15px;line-height:1.85;}

/* ---------- 解决方案 ---------- */
.split{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:56px;align-items:center;
}
.split + .split{margin-top:80px;}
.split.reverse .split-media{order:2;}
.split-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius-img);border:1px solid var(--line);
}
.split-body h3{
  font-size:clamp(21px,2vw,24px);line-height:1.42;font-weight:700;letter-spacing:-.2px;
}
.split-body > p{margin-top:16px;color:var(--muted);font-size:15.5px;line-height:1.9;}
.list-square{margin-top:22px;display:flex;flex-direction:column;gap:12px;}
.list-square li{
  position:relative;padding-left:22px;font-size:15px;line-height:1.8;color:var(--ink);
}
.list-square li::before{
  content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;
  background:var(--accent-2);border-radius:1px;
}
.split-body .link-arrow{margin-top:26px;}

/* ---------- 数据 ---------- */
.stats-wrap{padding:0 0 96px;}
.stats-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:32px;
  padding-top:44px;
}
.stat-label{
  font-size:12.5px;letter-spacing:.12em;color:var(--accent-2);
  font-weight:600;margin-bottom:12px;
}
.stat-value{
  font-size:clamp(34px,4.4vw,54px);font-weight:700;line-height:1.08;letter-spacing:-1.4px;
}
.stat-value span{font-size:.44em;font-weight:600;letter-spacing:0;margin-left:2px;color:var(--muted);}
.stat-desc{font-size:13px;color:var(--muted);line-height:1.75;margin-top:12px;}
.stats-rule{height:1px;background:var(--line);margin-top:44px;}

/* ---------- 证言 ---------- */
.voice-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:56px;align-items:start;}
.quote{border-left:3px solid var(--accent-2);padding-left:28px;}
.quote blockquote{
  font-size:clamp(20px,2.1vw,24px);line-height:1.7;font-weight:500;letter-spacing:-.2px;
}
.quote cite{display:block;margin-top:22px;font-style:normal;font-size:14px;color:var(--muted);}
.voice-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow-1);
}
.voice-card .vlabel{
  font-size:12.5px;letter-spacing:.12em;color:var(--accent-2);font-weight:600;margin-bottom:12px;
}
.voice-card p{font-size:15px;line-height:1.9;color:var(--muted);}
.voice-card .vname{margin-top:16px;font-size:13.5px;color:var(--ink);font-weight:600;}

/* ---------- 最新信息 ---------- */
.news-section{background:linear-gradient(180deg,rgba(255,255,255,0) 0%,rgba(255,255,255,.55) 100%);}
.news-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:36px;flex-wrap:wrap;
}
.news-head h2{font-size:clamp(24px,2.4vw,30px);font-weight:700;line-height:1.32;letter-spacing:-.3px;}
.news-head p{margin-top:12px;color:var(--muted);font-size:15px;}
.badge{
  display:inline-block;border:1px solid rgba(31,75,63,.3);background:rgba(31,75,63,.07);
  color:var(--accent);border-radius:4px;padding:3px 10px;
  font-size:12.5px;font-weight:600;line-height:1.7;
}
.news-feature{
  display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,1fr);
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.news-feature:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--shadow-2);}
.feature-media{position:relative;min-height:300px;background:#EDE8DF;}
.feature-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.feature-body{padding:32px;display:flex;flex-direction:column;gap:14px;justify-content:center;}
.feature-body h3{
  font-size:clamp(19px,1.9vw,22px);line-height:1.45;font-weight:700;letter-spacing:-.2px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .18s ease;
}
.news-feature:hover .feature-body h3{color:var(--accent);}
.feature-body p{
  font-size:14.5px;color:var(--muted);line-height:1.85;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--muted);flex-wrap:wrap;}
.card-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--line-strong);}
.card-meta .more{margin-left:auto;color:var(--accent);font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.card-meta .more .arw{transition:transform .2s var(--ease);}
.news-feature:hover .card-meta .more .arw{transform:translateX(3px);}

.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:24px;}
.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 ease,border-color .18s ease,box-shadow .18s ease;
}
.card:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--shadow-2);}
.card-media{aspect-ratio:4/3;background:#EDE8DF;overflow:hidden;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-body h3{
  font-size:18px;line-height:1.5;font-weight:600;letter-spacing:-.1px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .18s ease;
}
.card:hover .card-body h3{color:var(--accent);}
.card-body p{
  font-size:14px;color:var(--muted);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-body .card-meta{margin-top:auto;}
.empty-state{
  border:1px solid var(--line);border-radius:var(--radius-card);
  background:var(--surface);padding:56px 24px;text-align:center;
}
.empty-state .e-icon{
  width:44px;height:44px;margin:0 auto 16px;border:1px solid var(--line);border-radius:8px;
  display:flex;align-items:center;justify-content:center;color:var(--muted);
}
.empty-state p{color:var(--muted);font-size:15px;}
.empty-rule{width:56px;height:1px;background:var(--line);margin:18px auto 0;}

/* ---------- FAQ ---------- */
.faq-list{margin-top:8px;border-bottom:1px solid var(--line);}
.faq-item{border-top:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:24px;
  background:none;border:0;padding:22px 2px;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;line-height:1.7;color:var(--ink);
  transition:color .18s ease;
}
.faq-q:hover{color:var(--accent);}
.faq-icon{
  flex:none;width:22px;height:22px;position:relative;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--accent);transition:transform .24s var(--ease),opacity .24s ease;
}
.faq-icon::before{left:0;right:0;top:10px;height:2px;}
.faq-icon::after{top:0;bottom:0;left:10px;width:2px;}
.faq-item.open .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-a{overflow:hidden;max-height:0;transition:max-height .3s var(--ease);}
.faq-a-inner{padding:0 2px 24px;font-size:15px;line-height:1.9;color:var(--muted);max-width:64em;}

/* ---------- CTA ---------- */
.cta-wrap{padding:0 0 96px;}
.cta-band{
  background:var(--accent);color:#fff;border-radius:var(--radius-card);
  padding:56px;display:flex;align-items:center;justify-content:space-between;
  gap:40px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(22px,2.3vw,30px);line-height:1.4;font-weight:700;letter-spacing:-.3px;max-width:20em;}
.cta-band p{margin-top:14px;font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.78);}
.cta-side{display:flex;flex-direction:column;align-items:flex-start;gap:14px;}
.cta-side .contact-line{font-size:13.5px;color:rgba(255,255,255,.78);line-height:1.8;}
.btn-light{background:#fff;color:var(--accent);border-color:#fff;}
.btn-light:hover{background:rgba(255,255,255,.88);transform:translateY(-1px);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.btn-outline-light:hover{background:rgba(255,255,255,.1);transform:translateY(-1px);}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--line);background:var(--paper);}
.footer-grid{
  display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:40px;
  padding:64px 0 48px;
}
.footer-brand .brand{font-size:18px;}
.footer-brand p{margin-top:16px;font-size:13.5px;line-height:1.9;color:var(--muted);max-width:26em;}
.footer-col h4{
  font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--ink);margin-bottom:18px;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:13.5px;color:var(--muted);transition:color .18s ease;}
.footer-col a:hover{color:var(--accent);}
.footer-col p{font-size:13.5px;color:var(--muted);line-height:1.9;}
.footer-col .mini-note{margin-top:14px;font-size:13px;color:var(--muted);}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}
.footer-bottom a{color:var(--muted);}
.footer-bottom a:hover{color:var(--accent);}

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

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .hero-grid{gap:44px;}
  .split{gap:44px;}
}
@media (max-width:1024px){
  .section{padding:72px 0;}
  .hero{padding:56px 0 72px;}
  .hero-grid{grid-template-columns:1fr;gap:44px;}
  .hero-media{max-width:560px;}
  .hero-media::before{inset:14px -14px -14px 14px;}
  .pain-grid{grid-template-columns:1fr;gap:32px;}
  .split{grid-template-columns:1fr;gap:32px;}
  .split.reverse .split-media{order:0;}
  .split + .split{margin-top:64px;}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px 32px;}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .voice-grid{grid-template-columns:1fr;gap:32px;}
  .news-feature{grid-template-columns:1fr;}
  .feature-media{min-height:240px;aspect-ratio:16/9;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px;}
  .cta-band{padding:44px;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .header-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-drawer{display:flex;}
  .header-top{height:64px;}
  .brand{font-size:18px;}
  .brand small{display:none;}
  .hero h1{font-size:30px;}
  .hero-sub{font-size:15.5px;}
  .hero-actions{gap:16px;}
  .btn{width:100%;}
  .hero-actions .link-arrow{width:auto;}
  .section{padding:56px 0;}
  .section-tight{padding:48px 0;}
  .stats-wrap{padding:0 0 56px;}
  .cta-wrap{padding:0 0 56px;}
  .cta-band{padding:32px 24px;flex-direction:column;align-items:flex-start;}
  .cta-side{width:100%;}
  .news-grid{grid-template-columns:1fr;}
  .news-feature .feature-body{padding:22px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding:48px 0 36px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .quote{padding-left:20px;}
  .faq-q{font-size:15.5px;padding:20px 0;}
}
@media (max-width:480px){
  .hero h1{font-size:27px;}
  .points{flex-direction:column;gap:10px;}
  .stats-grid{grid-template-columns:1fr;gap:28px;}
  .pain-list li{grid-template-columns:40px minmax(0,1fr);gap:14px;padding:22px 0;}
  .hero-media::before{display:none;}
  .footer-brand p{max-width:none;}
}

/* roulang page: article */
:root{
  --ink:#16130F;
  --ink-soft:#2A251F;
  --accent:#1F4B3F;
  --accent-dark:#16382F;
  --accent-2:#B07A3C;
  --paper:#F7F4EE;
  --paper-deep:#F1ECE2;
  --surface:#FFFFFF;
  --line:#E2DCD2;
  --muted:#6B6459;
  --ok:#2F6B4F;
  --warn:#B4531E;
  --err:#B0372B;
  --r-card:10px;
  --r-btn:6px;
  --r-img:8px;
  --sh-1:0 1px 2px rgba(22,19,15,.04);
  --sh-2:0 8px 24px rgba(22,19,15,.07);
  --max:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei","Segoe UI",sans-serif;
  --serif:"Songti SC","Noto Serif SC",Georgia,"Times New Roman",serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block}
a{color:var(--accent);text-decoration:none;border-bottom:1px solid transparent;transition:color .18s var(--ease),border-color .18s var(--ease)}
a:hover{color:var(--ink)}
button{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-9999px;top:0;background:var(--accent);color:#fff;padding:10px 16px;border-radius:0 0 var(--r-btn) 0;z-index:200}
.skip:focus{left:0}

/* ============ 头部 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,244,238,.94);
  -webkit-backdrop-filter:saturate(120%) blur(6px);
  backdrop-filter:saturate(120%) blur(6px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s var(--ease),background .2s var(--ease);
}
.site-header.is-stuck{box-shadow:0 4px 16px rgba(22,19,15,.06)}
.header-top{display:flex;align-items:center;gap:22px;height:74px;transition:height .2s var(--ease)}
.site-header.is-stuck .header-top{height:62px}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:19px;font-weight:700;letter-spacing:-.2px;color:var(--ink);
  border-bottom:0;transition:font-size .2s var(--ease);
}
.site-header.is-stuck .brand{font-size:17px}
.brand-mark{width:8px;height:8px;background:var(--accent);border-radius:1px;display:inline-block;flex:0 0 auto}
.top-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-wrap{display:flex;align-items:center;gap:8px}
.search-input{
  width:0;opacity:0;padding:6px 2px;
  border:0;border-bottom:1px solid var(--line);background:transparent;
  font-size:14px;color:var(--ink);font-family:var(--sans);
  transition:width .22s var(--ease),opacity .18s var(--ease);
}
.search-input::placeholder{color:var(--muted)}
.search-input:focus{outline:none;border-bottom-color:var(--accent)}
.search-wrap.open .search-input{width:250px;opacity:1}
.icon-btn{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-btn);
  color:var(--ink);cursor:pointer;transition:border-color .18s var(--ease),background .18s var(--ease),transform .18s var(--ease);
}
.icon-btn:hover{border-color:var(--ink);transform:translateY(-1px)}
.icon-btn svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:14px;font-weight:600;font-family:var(--sans);line-height:1.4;
  cursor:pointer;transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease),border-color .18s var(--ease);
}
.btn-primary{background:var(--accent);color:#fff;border-bottom:0}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:none}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink);border-bottom:1px solid var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--paper);transform:translateY(-1px)}
.nav-toggle{display:none}
.header-nav{border-top:1px solid var(--line)}
.nav-row{display:flex;align-items:center;gap:26px;height:52px}
.main-nav{display:flex;align-items:center;gap:26px;font-size:14px;font-weight:500}
.main-nav a{
  color:var(--ink-soft);padding:15px 0;border-bottom:2px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.main-nav a:hover{color:var(--ink);border-bottom-color:var(--line)}
.main-nav a.active{color:var(--accent);border-bottom-color:var(--accent);font-weight:600}
.nav-tags{margin-left:auto;display:flex;align-items:center;gap:16px;font-size:13px;color:var(--muted)}
.nav-tags span.label{color:var(--accent-2);letter-spacing:.06em;font-size:12px}
.nav-tags a{color:var(--muted);border-bottom:1px solid var(--line);padding-bottom:1px}
.nav-tags a:hover{color:var(--accent);border-bottom-color:var(--accent)}

/* 移动抽屉 */
.nav-drawer{
  position:fixed;inset:0 0 0 auto;width:min(86vw,340px);
  background:var(--paper);border-left:1px solid var(--line);
  box-shadow:-16px 0 40px rgba(22,19,15,.12);
  transform:translateX(102%);transition:transform .24s var(--ease);
  z-index:120;padding:22px 22px 40px;overflow-y:auto;
}
.nav-drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-title{font-size:14px;font-weight:600;color:var(--muted)}
.drawer-search{display:flex;align-items:center;gap:8px;border-bottom:1px solid var(--line);padding-bottom:8px;margin-bottom:18px}
.drawer-search input{flex:1;border:0;background:transparent;font-size:15px;font-family:var(--sans);color:var(--ink);padding:6px 0}
.drawer-search input:focus{outline:none}
.drawer-links{display:flex;flex-direction:column}
.drawer-links a{
  font-size:16px;font-weight:500;color:var(--ink);padding:14px 0;border-bottom:1px solid var(--line);
}
.drawer-links a:hover{color:var(--accent)}
.drawer-links a.active{color:var(--accent);font-weight:600}
.drawer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.drawer-tags a{font-size:12px;color:var(--muted);border:1px solid var(--line);border-radius:4px;padding:5px 10px;background:var(--surface)}
.mask{position:fixed;inset:0;background:rgba(22,19,15,.42);opacity:0;visibility:hidden;transition:opacity .24s var(--ease),visibility .24s var(--ease);z-index:110}
.mask.open{opacity:1;visibility:visible}

/* ============ 文章头部 ============ */
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);padding:30px 0 0;
}
.crumbs a{color:var(--muted);border-bottom:1px solid transparent}
.crumbs a:hover{color:var(--accent);border-bottom-color:var(--accent)}
.crumbs .sep{color:var(--line)}
.crumbs .now{color:var(--ink-soft)}
.article-hero{padding:16px 0 0}
.badge{
  display:inline-block;font-size:13px;line-height:1.4;
  color:var(--accent);background:rgba(31,75,63,.06);
  border:1px solid rgba(31,75,63,.35);border-radius:4px;padding:4px 10px;
}
.article-title{
  font-size:clamp(28px,3.4vw,40px);
  line-height:1.25;letter-spacing:-.5px;font-weight:700;
  margin:18px 0 18px;max-width:880px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--muted)}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--accent-2);display:inline-block}
.article-meta strong{font-weight:600;color:var(--ink-soft)}
.hero-rule{height:1px;background:var(--line);margin-top:26px}

/* ============ 正文布局 ============ */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 258px;
  gap:56px;align-items:start;padding:40px 0 80px;
}
.article-main{min-width:0}
.article-body{
  max-width:780px;font-size:17px;line-height:1.9;color:var(--ink-soft);
  word-break:break-word;
}
.article-body p{margin:0 0 1.4em}
.article-body h2{
  font-size:24px;line-height:1.35;font-weight:700;color:var(--ink);
  margin:48px 0 16px;letter-spacing:-.2px;position:relative;padding-left:14px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.42em;width:3px;height:18px;background:var(--accent-2);border-radius:1px;
}
.article-body h3{
  font-size:19px;line-height:1.5;font-weight:600;color:var(--ink);
  margin:34px 0 12px;
}
.article-body strong{color:var(--ink);font-weight:600}
.article-body ul{margin:0 0 1.4em}
.article-body ul li{position:relative;padding-left:18px;margin-bottom:9px;line-height:1.8}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;background:var(--accent-2);border-radius:1px;
}
.article-body ol{list-style:decimal;margin:0 0 1.4em;padding-left:22px}
.article-body ol li{margin-bottom:9px;line-height:1.8}
.article-body ol li::marker{color:var(--accent-2);font-weight:600}
.article-body blockquote{
  margin:28px 0;padding:18px 24px;background:#FBF8F2;
  border-left:3px solid var(--accent-2);border-radius:0 var(--r-img) var(--r-img) 0;
  font-size:18px;line-height:1.8;color:var(--ink-soft);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:26px auto}
.article-body figure{margin:26px 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left;vertical-align:top}
.article-body th{background:#FBF8F2;font-weight:600;color:var(--ink)}
.article-body hr{border:0;height:1px;background:var(--line);margin:36px 0}
.article-body code{
  background:#F1ECE2;color:var(--accent-dark);border-radius:4px;
  padding:2px 6px;font-size:.92em;
}

/* 无内容态 */
.empty-article{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:56px 28px;text-align:center;box-shadow:var(--sh-1);
}
.empty-article .empty-title{font-size:20px;font-weight:600;color:var(--ink);margin-bottom:10px}
.empty-article p{font-size:14px;color:var(--muted);margin-bottom:22px}

/* ============ 侧栏 ============ */
.article-aside{position:sticky;top:104px;display:flex;flex-direction:column;gap:30px}
.toc-card{border-left:2px solid var(--line);padding-left:16px}
.aside-title{
  font-size:13px;font-weight:600;color:var(--ink);letter-spacing:.08em;
  margin-bottom:14px;display:flex;align-items:center;gap:8px;
}
.aside-title::after{content:"";flex:1;height:1px;background:var(--line)}
.toc-list{display:flex;flex-direction:column;gap:2px}
.toc-list a{
  display:block;font-size:14px;line-height:1.6;color:var(--muted);
  padding:6px 0 6px 10px;border-left:2px solid transparent;margin-left:-18px;
  border-bottom:0;
}
.toc-list a:hover{color:var(--ink)}
.toc-list a.toc-sub{padding-left:22px;font-size:13px}
.toc-list a.is-active{color:var(--accent);font-weight:600;border-left-color:var(--accent)}
.toc-empty{font-size:13px;color:var(--muted)}
.aside-cards{display:flex;flex-direction:column;gap:14px}
.mini-card{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:14px 16px;box-shadow:var(--sh-1);border-bottom:1px solid var(--line);
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.mini-card:hover{transform:translateY(-2px);border-color:#CFC7B9;box-shadow:var(--sh-2);color:var(--ink)}
.mini-card .mini-tag{font-size:12px;color:var(--accent-2);letter-spacing:.04em}
.mini-card .mini-title{font-size:14px;font-weight:600;color:var(--ink);line-height:1.55;margin-top:6px}
.mini-card .mini-time{font-size:12px;color:var(--muted);margin-top:8px}
.aside-note{
  background:var(--paper-deep);border:1px solid var(--line);border-radius:var(--r-card);
  padding:16px;font-size:13px;line-height:1.75;color:var(--muted);
}
.aside-note strong{display:block;color:var(--ink);font-size:14px;margin-bottom:6px}

/* ============ 文末 ============ */
.article-end{margin-top:52px;padding-top:36px;border-top:1px solid var(--line)}
.end-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:22px}
.end-head h2{font-size:22px;font-weight:700;letter-spacing:-.2px}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ink);border-bottom:1px solid var(--line);padding-bottom:2px}
.text-link:hover{color:var(--accent);border-bottom-color:var(--accent)}
.text-link .arw{transition:transform .18s var(--ease)}
.text-link:hover .arw{transform:translateX(3px)}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;border-bottom:1px solid var(--line);
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.card:hover{transform:translateY(-2px);border-color:#CFC7B9;box-shadow:var(--sh-2);color:var(--ink)}
.card-thumb{aspect-ratio:4/3;overflow:hidden;background:var(--paper-deep)}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.card:hover .card-thumb img{transform:scale(1.03)}
.card-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px}
.card-tag{font-size:12px;color:var(--accent);background:rgba(31,75,63,.06);border:1px solid rgba(31,75,63,.3);border-radius:4px;padding:3px 8px;align-self:flex-start}
.card-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}
.card-desc{font-size:14px;line-height:1.75;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--muted);margin-top:2px}
.back-row{margin-top:30px;display:flex;flex-wrap:wrap;gap:18px;align-items:center}

/* ============ CTA 带 ============ */
.cta-band{padding:0 0 84px}
.cta-inner{
  background:var(--accent);color:#fff;border-radius:var(--r-card);
  padding:52px 48px;display:grid;grid-template-columns:minmax(0,1fr) auto;
  gap:28px;align-items:center;
}
.cta-inner h2{font-size:clamp(22px,2.6vw,28px);line-height:1.35;font-weight:700;letter-spacing:-.3px}
.cta-inner p{margin-top:12px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.78);max-width:560px}
.cta-inner .btn-light{background:var(--paper);color:var(--ink);border-bottom:0}
.cta-inner .btn-light:hover{background:#fff;color:var(--ink);transform:translateY(-1px)}
.cta-side{display:flex;flex-direction:column;gap:12px;align-items:flex-start}

/* ============ 页脚 ============ */
.site-footer{background:var(--paper-deep);border-top:1px solid var(--line);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand .brand{font-size:18px;margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--muted);max-width:320px}
.footer-col h4{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:14px;letter-spacing:.04em}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--muted);border-bottom:1px solid transparent}
.footer-col a:hover{color:var(--accent);border-bottom-color:var(--accent)}
.footer-col p{font-size:14px;line-height:1.85;color:var(--muted)}
.footer-col .mini-note{font-size:12px;color:var(--muted);margin-top:10px}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--muted);
}
.footer-bottom a{color:var(--muted);border-bottom:1px solid var(--line)}
.footer-bottom a:hover{color:var(--accent);border-bottom-color:var(--accent)}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(12px)}
.reveal.in{opacity:1;transform:none;transition:opacity .48s var(--ease),transform .48s var(--ease)}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* ============ 响应式 ============ */
@media (max-width:1080px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:40px}
  .article-aside{position:static;order:2;max-width:780px}
  .toc-card{border-left:2px solid var(--line)}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:900px){
  .nav-tags{display:none}
  .cta-inner{grid-template-columns:1fr;padding:40px 30px}
  .cta-side{flex-direction:row;flex-wrap:wrap}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .header-nav{display:none}
  .nav-toggle{display:inline-flex}
  .header-top{height:64px;gap:12px}
  .top-actions .btn-primary{display:none}
  .search-wrap.open .search-input{width:150px}
  .crumbs{padding-top:22px}
  .article-title{font-size:clamp(26px,6.4vw,32px);margin:14px 0}
  .article-layout{padding:28px 0 60px}
  .article-body{font-size:16px;line-height:1.85}
  .article-body h2{font-size:21px;margin-top:36px}
  .article-body h3{font-size:18px}
  .related-grid{grid-template-columns:1fr}
  .cta-band{padding-bottom:60px}
  .cta-inner{padding:32px 22px}
  .site-footer{padding:48px 0 24px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .top-actions{gap:8px}
  .icon-btn{width:36px;height:36px}
  .search-wrap.open .search-input{width:120px}
  .article-body{font-size:16px}
  .article-body table{display:block;overflow-x:auto}
  .end-head{flex-direction:column;align-items:flex-start;gap:8px}
}

/* roulang page: category1 */
:root{
  --ink:#16130F;
  --ink-soft:rgba(22,19,15,.78);
  --accent:#1F4B3F;
  --accent-deep:#173B32;
  --accent-08:rgba(31,75,63,.08);
  --copper:#B07A3C;
  --paper:#F7F4EE;
  --surface:#FFFFFF;
  --line:#E2DCD2;
  --line-strong:#CFC6B8;
  --muted:#6B6459;
  --success:#2F6B4F;
  --warn:#B4531E;
  --error:#B0372B;
  --radius-card:10px;
  --radius-btn:6px;
  --radius-img:8px;
  --shadow-sm:0 1px 2px rgba(22,19,15,.04);
  --shadow-md:0 8px 24px rgba(22,19,15,.07);
  --shadow-head:0 4px 16px rgba(22,19,15,.06);
  --container:1200px;
  --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(--paper);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:var(--accent);text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:4px;}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:none;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.3px;line-height:1.25;color:var(--ink);}
p{margin:0;}
figure{margin:0;}

:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
  border-radius:3px;
}

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

/* ============ 头部 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(247,244,238,.96);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s var(--ease),background .2s var(--ease);
}
.site-header.is-stuck{
  background:rgba(247,244,238,.92);
  backdrop-filter:saturate(120%) blur(6px);
  box-shadow:var(--shadow-head);
}

.header-top-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:64px;
  transition:min-height .2s var(--ease);
}
.site-header.is-stuck .header-top-inner{min-height:54px;}

.brand{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:19px;
  font-weight:700;
  letter-spacing:-.4px;
  color:var(--ink);
  white-space:nowrap;
}
.brand:hover{color:var(--accent);text-decoration:none;}
.brand-mark{
  width:8px;
  height:8px;
  border-radius:2px;
  background:var(--accent);
  flex:none;
}
.site-header.is-stuck .brand{font-size:17.5px;}

.header-tools{
  display:flex;
  align-items:center;
  gap:18px;
}
.tool-link{
  font-size:14px;
  color:var(--muted);
}
.tool-link:hover{color:var(--ink);text-decoration:none;}

.search-toggle{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-size:14px;
  color:var(--muted);
  padding:6px 2px;
  border-radius:4px;
}
.search-toggle:hover{color:var(--accent);}
.search-toggle svg{width:15px;height:15px;}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 26px;
  border-radius:var(--radius-btn);
  font-size:14.5px;
  font-weight:600;
  letter-spacing:.2px;
  border:1px solid transparent;
  transition:background .18s var(--ease),transform .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
  text-decoration:none;
}
.btn:hover{text-decoration:none;}
.btn-primary{
  background:var(--accent);
  color:#fff;
}
.btn-primary:hover{
  background:var(--accent-deep);
  color:#fff;
  transform:translateY(-1px);
}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  border-color:var(--ink);
  color:var(--ink);
  background:transparent;
}
.btn-ghost:hover{
  background:var(--ink);
  color:var(--paper);
}
.btn-sm{padding:10px 18px;font-size:13.5px;}
.btn-block{width:100%;}

.header-bottom{
  border-top:1px solid transparent;
  transition:border-color .2s var(--ease);
}
.site-header.is-stuck .header-bottom{border-top-color:var(--line);}

.header-bottom-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:48px;
  flex-wrap:wrap;
}

.main-nav{
  display:flex;
  align-items:center;
  gap:28px;
}
.main-nav a{
  position:relative;
  font-size:14px;
  font-weight:500;
  color:var(--ink-soft);
  padding:12px 0;
  transition:color .18s var(--ease);
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:6px;
  height:2px;
  background:var(--accent);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .2s var(--ease);
}
.main-nav a:hover{color:var(--ink);text-decoration:none;}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.active{color:var(--accent);font-weight:600;}
.main-nav a.active::after{transform:scaleX(1);}

.hot-tags{
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
}
.hot-tags .tag-label{
  font-size:12.5px;
  color:var(--muted);
  letter-spacing:.4px;
}
.hot-tags a{
  font-size:12.5px;
  color:var(--muted);
  padding:3px 10px;
  border:1px solid var(--line);
  border-radius:4px;
  background:rgba(255,255,255,.6);
  white-space:nowrap;
}
.hot-tags a:hover{
  color:var(--accent);
  border-color:var(--accent);
  text-decoration:none;
  background:#fff;
}

.nav-toggle{
  display:none;
  width:40px;
  height:36px;
  border:1px solid var(--line);
  border-radius:5px;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:4px;
  background:#fff;
}
.nav-toggle span{
  display:block;
  width:16px;
  height:1.5px;
  background:var(--ink);
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
body.menu-open .nav-toggle span:nth-child(1){transform:translateY(5.5px) rotate(45deg);}
body.menu-open .nav-toggle span:nth-child(2){opacity:0;}
body.menu-open .nav-toggle span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg);}

.search-panel{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
}
.search-panel.is-open{display:block;}
.search-panel-inner{
  display:flex;
  align-items:center;
  gap:12px;
  padding:14px 0;
}
.search-panel input[type="search"]{
  flex:1;
  border:none;
  border-bottom:1px solid var(--line-strong);
  background:transparent;
  padding:8px 2px;
  font-size:15px;
  color:var(--ink);
  border-radius:0;
  transition:border-color .18s var(--ease);
}
.search-panel input[type="search"]:focus{
  outline:none;
  border-bottom:2px solid var(--accent);
}
.search-panel input::placeholder{color:#9C948A;}
.search-close{
  font-size:13px;
  color:var(--muted);
  padding:6px 10px;
  border:1px solid var(--line);
  border-radius:4px;
}
.search-close:hover{color:var(--ink);border-color:var(--line-strong);}

.mobile-drawer{
  display:none;
  background:#fff;
  border-top:1px solid var(--line);
  padding:18px 0 24px;
}
body.menu-open .mobile-drawer{display:block;}
.mobile-drawer .drawer-search{
  display:flex;
  gap:10px;
  margin-bottom:16px;
}
.mobile-drawer .drawer-search input{
  flex:1;
  border:1px solid var(--line);
  border-radius:5px;
  padding:10px 12px;
  font-size:14px;
  background:var(--paper);
}
.mobile-drawer .drawer-search input:focus{outline:none;border-color:var(--accent);}
.mobile-drawer .drawer-links a{
  display:block;
  padding:12px 2px;
  font-size:15px;
  color:var(--ink);
  border-bottom:1px solid var(--line);
}
.mobile-drawer .drawer-links a.active{color:var(--accent);font-weight:600;}
.mobile-drawer .drawer-tags{
  display:flex;
  gap:8px;
  overflow-x:auto;
  margin-top:16px;
  padding-bottom:4px;
}
.mobile-drawer .drawer-tags a{
  flex:none;
  font-size:12.5px;
  color:var(--muted);
  border:1px solid var(--line);
  border-radius:4px;
  padding:5px 10px;
  white-space:nowrap;
}
.mobile-drawer .btn{margin-top:18px;}

/* ============ 首屏（窄幅） ============ */
.page-hero{
  padding:40px 0 56px;
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(255,255,255,.55),rgba(247,244,238,0));
}
.page-hero-inner{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:center;
}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:12.5px;
  color:var(--muted);
  margin-bottom:18px;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb span[aria-current]{color:var(--ink-soft);}

.page-hero h1{
  font-size:clamp(28px,3.4vw,36px);
  line-height:1.18;
  letter-spacing:-.5px;
  margin-bottom:14px;
}
.page-hero .lead{
  font-size:16.5px;
  color:var(--muted);
  line-height:1.8;
  max-width:34em;
}
.chip-row{
  display:flex;
  flex-wrap:wrap;
  gap:9px;
  margin-top:26px;
}
.chip{
  font-size:13px;
  font-weight:500;
  padding:7px 15px;
  border-radius:4px;
  border:1px solid var(--line-strong);
  color:var(--ink-soft);
  background:#fff;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.chip:hover{border-color:var(--accent);color:var(--accent);}
.chip.is-active{
  background:var(--accent);
  border-color:var(--accent);
  color:#fff;
}
.chip.is-active:hover{background:var(--accent-deep);color:#fff;}

.page-hero-media{
  position:relative;
  border-radius:var(--radius-img);
  overflow:hidden;
  aspect-ratio:21/9;
  box-shadow:var(--shadow-sm);
  border:1px solid var(--line);
  min-height:170px;
}
.page-hero-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  border-radius:0;
}
.page-hero-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:rgba(22,19,15,.14);
  pointer-events:none;
}
.page-hero-media figcaption{
  position:absolute;
  left:16px;
  bottom:14px;
  z-index:2;
  font-size:12.5px;
  color:rgba(255,255,255,.92);
  letter-spacing:.3px;
}

/* ============ 通用板块 ============ */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:32px;
  margin-bottom:44px;
  flex-wrap:wrap;
}
.section-head .eyebrow{
  display:block;
  font-size:12.5px;
  letter-spacing:1.6px;
  color:var(--copper);
  font-weight:600;
  margin-bottom:12px;
  text-transform:uppercase;
}
.section-head h2{
  font-size:clamp(24px,2.6vw,29px);
  letter-spacing:-.4px;
  max-width:22em;
}
.section-head .head-desc{
  font-size:15px;
  color:var(--muted);
  max-width:30em;
  margin-top:12px;
  line-height:1.8;
}
.section-head .head-aside{
  font-size:14px;
  color:var(--muted);
  white-space:nowrap;
}
.section-head .head-aside a{
  border-bottom:1px solid var(--line-strong);
  padding-bottom:2px;
}
.section-head .head-aside a:hover{border-color:var(--accent);}

/* ============ 能力卡片墙（2列图文卡） ============ */
.cap-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.cap-card{
  display:grid;
  grid-template-columns:220px 1fr;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.cap-card:hover{
  transform:translateY(-2px);
  border-color:var(--line-strong);
  box-shadow:var(--shadow-md);
}
.cap-media{
  position:relative;
  background:#EFEBE3;
  overflow:hidden;
}
.cap-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  border-radius:0;
  transition:transform .4s var(--ease);
}
.cap-card:hover .cap-media img{transform:scale(1.03);}
.cap-body{
  padding:22px 24px 24px;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.badge{
  display:inline-flex;
  align-items:center;
  align-self:flex-start;
  font-size:12.5px;
  font-weight:500;
  padding:3px 10px;
  border-radius:4px;
  border:1px solid rgba(31,75,63,.28);
  background:var(--accent-08);
  color:var(--accent);
  letter-spacing:.2px;
}
.cap-body h3{
  font-size:18px;
  font-weight:600;
  line-height:1.4;
}
.cap-body p{
  font-size:14px;
  color:var(--muted);
  line-height:1.78;
}
.cap-points{
  display:flex;
  flex-direction:column;
  gap:6px;
  margin-top:2px;
}
.cap-points li{
  position:relative;
  padding-left:15px;
  font-size:13.5px;
  color:var(--ink-soft);
  line-height:1.65;
}
.cap-points li::before{
  content:"";
  position:absolute;
  left:0;
  top:8px;
  width:5px;
  height:5px;
  border-radius:1px;
  background:var(--copper);
}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13.5px;
  font-weight:600;
  color:var(--ink);
  margin-top:auto;
  padding-top:6px;
  border-bottom:1px solid transparent;
  align-self:flex-start;
  transition:color .18s var(--ease);
}
.text-link span{
  transition:transform .18s var(--ease);
  color:var(--copper);
}
.text-link:hover{color:var(--accent);text-decoration:none;}
.text-link:hover span{transform:translateX(3px);}

/* ============ 能力矩阵对照表 ============ */
.matrix-wrap{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
}
.matrix-table{
  width:100%;
  border-collapse:collapse;
  font-size:14.5px;
}
.matrix-table caption{
  text-align:left;
  font-size:13px;
  color:var(--muted);
  padding:18px 24px 0;
}
.matrix-table th,
.matrix-table td{
  text-align:left;
  padding:16px 24px;
  border-bottom:1px solid var(--line);
  vertical-align:top;
  line-height:1.7;
}
.matrix-table thead th{
  background:#FAF8F3;
  font-size:13px;
  font-weight:600;
  color:var(--muted);
  letter-spacing:.6px;
  white-space:nowrap;
}
.matrix-table tbody th{
  font-weight:600;
  font-size:14.5px;
  color:var(--ink);
  white-space:nowrap;
}
.matrix-table td{color:var(--ink-soft);}
.matrix-table tbody tr:last-child th,
.matrix-table tbody tr:last-child td{border-bottom:none;}
.matrix-table tbody tr:hover{background:#FBFAF6;}

/* ============ 开通路径 ============ */
.flow-list{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:0;
  border-top:1px solid var(--line);
}
.flow-item{
  padding:32px 26px 8px 0;
  border-right:1px solid var(--line);
}
.flow-item:last-child{border-right:none;padding-right:0;}
.flow-item .num{
  display:block;
  font-size:12.5px;
  font-weight:600;
  letter-spacing:1.4px;
  color:var(--copper);
  margin-bottom:14px;
}
.flow-item h3{
  font-size:17px;
  font-weight:600;
  margin-bottom:10px;
  line-height:1.45;
}
.flow-item p{
  font-size:14px;
  color:var(--muted);
  line-height:1.78;
}

/* ============ 数据 ============ */
.stats{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
  padding:48px 0 40px;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.stat .stat-label{
  display:block;
  font-size:12.5px;
  letter-spacing:1.2px;
  color:var(--copper);
  font-weight:600;
  margin-bottom:10px;
}
.stat .stat-num{
  font-size:clamp(38px,4.6vw,56px);
  font-weight:700;
  letter-spacing:-1.5px;
  line-height:1.05;
  color:var(--ink);
}
.stat .stat-num small{
  font-size:.42em;
  font-weight:600;
  letter-spacing:0;
  margin-left:4px;
  color:var(--muted);
}
.stat p{
  font-size:13px;
  color:var(--muted);
  line-height:1.7;
  margin-top:10px;
}

/* ============ FAQ ============ */
.faq-list{
  border-top:1px solid var(--line);
  max-width:860px;
}
.faq-item{
  border-bottom:1px solid var(--line);
}
.faq-btn{
  width:100%;
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:24px;
  text-align:left;
  padding:22px 2px;
  font-size:16px;
  font-weight:600;
  line-height:1.6;
  color:var(--ink);
  transition:color .18s var(--ease);
}
.faq-btn:hover{color:var(--accent);}
.faq-icon{
  flex:none;
  width:18px;
  height:18px;
  position:relative;
  margin-top:4px;
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--copper);
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.faq-icon::before{left:0;right:0;top:8px;height:1.5px;}
.faq-icon::after{top:0;bottom:0;left:8px;width:1.5px;}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-panel{
  overflow:hidden;
  max-height:0;
  transition:max-height .28s var(--ease);
}
.faq-panel-inner{
  padding:0 46px 24px 2px;
  font-size:15px;
  line-height:1.85;
  color:var(--ink-soft);
}

/* ============ 分页位 ============ */
.pager{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  margin-top:44px;
}
.pager a,
.pager span{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:32px;
  height:32px;
  font-size:13.5px;
  border-radius:4px;
  border:1px solid var(--line-strong);
  color:var(--ink-soft);
  background:#fff;
  transition:border-color .18s var(--ease),color .18s var(--ease),background .18s var(--ease);
}
.pager a:hover{border-color:var(--accent);color:var(--accent);text-decoration:none;}
.pager .is-current{
  background:var(--ink);
  border-color:var(--ink);
  color:#fff;
}
.pager .pager-note{
  width:auto;
  height:auto;
  border:none;
  background:none;
  color:var(--muted);
  font-size:13px;
  padding:0 6px;
}

/* ============ CTA 带 ============ */
.cta-band{
  background:var(--ink);
  color:#fff;
  border-radius:var(--radius-card);
  padding:56px 56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
  flex-wrap:wrap;
}
.cta-band h2{
  color:#fff;
  font-size:clamp(22px,2.4vw,28px);
  letter-spacing:-.4px;
  max-width:20em;
}
.cta-band p{
  color:rgba(255,255,255,.68);
  font-size:14px;
  margin-top:12px;
  line-height:1.8;
}
.cta-band .cta-actions{
  display:flex;
  align-items:center;
  gap:14px;
  flex-wrap:wrap;
}
.cta-band .btn-primary{background:var(--accent);}
.cta-band .btn-primary:hover{background:#2A6153;color:#fff;}
.cta-band .btn-ghost{
  border-color:rgba(255,255,255,.4);
  color:#fff;
}
.cta-band .btn-ghost:hover{background:#fff;color:var(--ink);border-color:#fff;}

/* ============ 咨询表单 ============ */
.contact-section{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:64px;
  align-items:start;
}
.contact-copy h2{
  font-size:clamp(24px,2.6vw,29px);
  letter-spacing:-.4px;
  margin-bottom:16px;
}
.contact-copy p{
  font-size:15.5px;
  color:var(--muted);
  line-height:1.85;
  max-width:30em;
}
.contact-copy ul{
  margin-top:26px;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.contact-copy li{
  position:relative;
  padding-left:18px;
  font-size:14.5px;
  color:var(--ink-soft);
}
.contact-copy li::before{
  content:"";
  position:absolute;
  left:0;
  top:9px;
  width:6px;
  height:6px;
  border-radius:1px;
  background:var(--copper);
}
.lead-form{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:32px;
  box-shadow:var(--shadow-sm);
  display:flex;
  flex-direction:column;
  gap:22px;
}
.field{display:flex;flex-direction:column;gap:7px;}
.field label{
  font-size:13px;
  color:var(--muted);
  letter-spacing:.3px;
}
.field input,
.field textarea{
  width:100%;
  border:none;
  border-bottom:1px solid var(--line-strong);
  background:transparent;
  padding:8px 2px 9px;
  font-size:15px;
  font-family:inherit;
  color:var(--ink);
  border-radius:0;
  transition:border-color .18s var(--ease);
}
.field textarea{
  resize:vertical;
  min-height:74px;
  line-height:1.7;
}
.field input:focus,
.field textarea:focus{
  outline:none;
  border-bottom:2px solid var(--accent);
}
.field input::placeholder,
.field textarea::placeholder{color:#A9A197;}
.field .hint{font-size:12.5px;color:var(--muted);}
.form-note{
  font-size:12.5px;
  color:var(--muted);
  line-height:1.7;
}

/* ============ 页脚 ============ */
.site-footer{
  background:#12100D;
  color:rgba(255,255,255,.72);
  padding:72px 0 28px;
  margin-top:96px;
  font-size:13.5px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.3fr;
  gap:48px;
  padding-bottom:44px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.site-footer .brand{
  color:#fff;
  font-size:17px;
  margin-bottom:16px;
}
.site-footer .brand:hover{color:#fff;text-decoration:none;}
.site-footer .brand-mark{background:var(--copper);}
.footer-brand p{
  color:rgba(255,255,255,.6);
  line-height:1.85;
  max-width:26em;
}
.footer-col h4{
  color:#fff;
  font-size:13.5px;
  font-weight:600;
  letter-spacing:1px;
  margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{
  color:rgba(255,255,255,.68);
  font-size:13.5px;
}
.footer-col a:hover{color:#fff;text-decoration:none;}
.footer-col p{
  color:rgba(255,255,255,.6);
  line-height:1.85;
}
.footer-col .mini-note{
  margin-top:12px;
  font-size:12.5px;
  color:rgba(255,255,255,.42);
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding-top:24px;
  flex-wrap:wrap;
  font-size:12.5px;
  color:rgba(255,255,255,.45);
}
.footer-bottom a{color:rgba(255,255,255,.6);}
.footer-bottom a:hover{color:#fff;text-decoration:none;}

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

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .cap-card{grid-template-columns:190px 1fr;}
  .page-hero-inner{gap:36px;}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:36px;}
  .footer-col:last-child{grid-column:1 / -1;}
}

@media (max-width:1024px){
  .section{padding:72px 0;}
  .section-tight{padding:56px 0;}
  .page-hero{padding:32px 0 48px;}
  .page-hero-inner{grid-template-columns:1fr;gap:28px;}
  .page-hero-media{aspect-ratio:16/9;}
  .cap-grid{grid-template-columns:1fr;}
  .cap-card{grid-template-columns:200px 1fr;}
  .flow-list{grid-template-columns:repeat(2,minmax(0,1fr));}
  .flow-item{border-right:none;border-bottom:1px solid var(--line);padding:28px 24px 24px 0;}
  .flow-item:nth-child(odd){padding-right:28px;}
  .flow-item:nth-last-child(-n+2){border-bottom:none;}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px 24px;}
  .contact-section{grid-template-columns:1fr;gap:40px;}
  .cta-band{padding:44px 36px;}
  .site-footer{margin-top:72px;}
}

@media (max-width:768px){
  body{font-size:16px;line-height:1.8;}
  .container{padding:0 20px;}
  .header-tools .tool-link{display:none;}
  .main-nav{display:none;}
  .hot-tags{display:none;}
  .nav-toggle{display:flex;}
  .header-bottom-inner{min-height:0;padding:0 0 12px;}
  .header-top-inner{min-height:58px;}
  .search-panel-inner{padding:12px 0;}
  .page-hero h1{font-size:30px;}
  .page-hero .lead{font-size:15.5px;}
  .chip-row{margin-top:20px;gap:8px;}
  .chip{font-size:12.5px;padding:6px 12px;}
  .section{padding:56px 0;}
  .section-tight{padding:48px 0;}
  .section-head{margin-bottom:30px;gap:18px;}
  .section-head .head-desc{font-size:14.5px;}
  .cap-card{grid-template-columns:1fr;}
  .cap-media{aspect-ratio:16/9;}
  .cap-body{padding:18px 18px 20px;}
  .matrix-table th,
  .matrix-table td{padding:13px 16px;font-size:13.5px;}
  .matrix-table thead th{font-size:12px;}
  .matrix-wrap{overflow-x:auto;}
  .matrix-table{min-width:620px;}
  .flow-list{grid-template-columns:1fr;}
  .flow-item{
    border-right:none;
    border-bottom:1px solid var(--line);
    padding:24px 0 20px;
  }
  .flow-item:nth-child(odd){padding-right:0;}
  .flow-item:nth-last-child(-n+2){border-bottom:1px solid var(--line);}
  .flow-item:last-child{border-bottom:none;padding-bottom:0;}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 20px;padding:36px 0 32px;}
  .faq-btn{font-size:15px;padding:18px 2px;gap:16px;}
  .faq-panel-inner{padding:0 26px 20px 2px;font-size:14.5px;}
  .cta-band{padding:34px 24px;gap:24px;}
  .lead-form{padding:24px 20px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;padding-bottom:32px;}
  .footer-brand{grid-column:1 / -1;}
  .site-footer{padding:52px 0 24px;margin-top:56px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
}

@media (max-width:520px){
  .brand{font-size:17px;}
  .site-header.is-stuck .brand{font-size:16px;}
  .header-tools{gap:10px;}
  .btn-sm{padding:9px 13px;font-size:12.5px;}
  .header-tools .btn-sm{display:none;}
  .page-hero{padding:26px 0 40px;}
  .page-hero h1{font-size:26px;line-height:1.22;}
  .page-hero-media{aspect-ratio:16/10;}
  .stats{grid-template-columns:1fr;}
  .stat .stat-num{font-size:42px;}
  .footer-grid{grid-template-columns:1fr;}
  .hot-tags .tag-label{display:none;}
}

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

/* roulang page: category2 */
:root{
  --ink:#16130F;
  --accent:#1F4B3F;
  --accent-dark:#16382F;
  --copper:#B07A3C;
  --paper:#F7F4EE;
  --surface:#FFFFFF;
  --line:#E2DCD2;
  --line-strong:#C9C0B2;
  --muted:#6B6459;
  --success:#2F6B4F;
  --warn:#B4531E;
  --error:#B0372B;
  --radius-card:10px;
  --radius-btn:6px;
  --radius-img:8px;
  --shadow-sm:0 1px 2px rgba(22,19,15,.04);
  --shadow-md:0 8px 24px rgba(22,19,15,.07);
  --container:1200px;
  --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(--paper);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--accent);text-decoration:none}
a:hover{color:var(--ink)}
button{font-family:inherit}
input{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.3px;line-height:1.3}
p{margin:0}
ul{list-style:none;margin:0;padding:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.section{padding:96px 0}
.section--tight{padding:64px 0}
.eyebrow{
  display:block;
  font-size:13px;
  font-weight:600;
  letter-spacing:.12em;
  color:var(--copper);
  margin-bottom:14px;
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:32px;
  margin-bottom:40px;
  flex-wrap:wrap;
}
.section-head h2{font-size:28px}
.section-head p{color:var(--muted);font-size:15px;margin-top:10px;max-width:640px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  line-height:1.2;
  padding:13px 24px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
  text-decoration:none;
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:rgba(22,19,15,.05);color:var(--ink)}
.btn-sm{padding:9px 16px;font-size:13px}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--ink);
  background:none;border:0;padding:0;cursor:pointer;
}
.btn-link .arrow{transition:transform .2s var(--ease);display:inline-block}
.btn-link:hover{color:var(--accent)}
.btn-link:hover .arrow{transform:translateX(3px)}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  padding:4px 10px;
  border-radius:4px;
  border:1px solid rgba(31,75,63,.28);
  background:rgba(31,75,63,.07);
  color:var(--accent);
}
.chip{
  font-size:13px;
  font-weight:500;
  padding:7px 14px;
  border-radius:4px;
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--muted);
  cursor:pointer;
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.chip:hover{border-color:var(--line-strong);color:var(--ink)}
.chip.is-active{background:var(--accent);border-color:var(--accent);color:#fff}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:90;
  background:rgba(247,244,238,.94);
  backdrop-filter:saturate(120%) blur(8px);
  -webkit-backdrop-filter:saturate(120%) blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-stuck{box-shadow:0 4px 16px rgba(22,19,15,.06)}
.topbar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:16px 0;
  transition:padding .2s ease;
}
.site-header.is-stuck .topbar-inner{padding:10px 0}
.brand{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:20px;
  font-weight:700;
  letter-spacing:-.4px;
  color:var(--ink);
  transition:font-size .2s ease;
}
.site-header.is-stuck .brand{font-size:18px}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:8px;height:8px;
  background:var(--accent);
  border-radius:1px;
  flex:none;
}
.topbar-right{display:flex;align-items:center;gap:18px}
.top-link{
  font-size:14px;
  color:var(--muted);
  transition:color .18s ease;
}
.top-link:hover{color:var(--accent)}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;
  border:1px solid var(--line);
  border-radius:6px;
  background:var(--surface);
  color:var(--ink);
  cursor:pointer;
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.icon-btn:hover{border-color:var(--line-strong);color:var(--accent)}
.nav-toggle{display:none}
.subbar-inner{
  display:flex;
  align-items:center;
  gap:32px;
  padding-bottom:12px;
}
.main-nav{display:flex;align-items:center;gap:28px}
.main-nav a{
  position:relative;
  font-size:14px;
  font-weight:500;
  color:var(--ink);
  padding:4px 0;
  border-bottom:2px solid transparent;
  transition:color .18s ease,border-color .18s ease;
}
.main-nav a:hover{color:var(--ink);border-bottom-color:var(--line-strong)}
.main-nav a.active{color:var(--accent);border-bottom-color:var(--accent)}
.hot-tags{
  display:flex;
  align-items:center;
  gap:8px;
  margin-left:auto;
  flex-wrap:wrap;
}
.hot-tags span{font-size:12.5px;color:var(--muted)}
.hot-tags a{
  font-size:12.5px;
  color:var(--muted);
  border:1px solid var(--line);
  border-radius:999px;
  padding:3px 11px;
  background:var(--surface);
  transition:border-color .18s ease,color .18s ease;
}
.hot-tags a:hover{border-color:var(--accent);color:var(--accent)}
.search-panel{display:none;border-top:1px solid var(--line);background:var(--surface)}
.search-panel.is-open{display:block}
.search-inner{display:flex;align-items:center;gap:12px;padding:14px 0}
.search-inner input{
  flex:1;
  border:1px solid var(--line);
  background:var(--paper);
  color:var(--ink);
  border-radius:6px;
  padding:10px 14px;
  font-size:14px;
  transition:border-color .18s ease;
}
.search-inner input:focus{outline:none;border-color:var(--accent)}
.search-close{
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--muted);
  border-radius:6px;
  padding:9px 14px;
  font-size:13px;
  cursor:pointer;
}
.search-close:hover{color:var(--ink);border-color:var(--line-strong)}
.drawer{display:none;border-top:1px solid var(--line);background:var(--surface)}
.drawer.is-open{display:block}
.drawer-inner{padding:16px 0 22px}
.drawer-inner input{
  width:100%;
  border:1px solid var(--line);
  background:var(--paper);
  border-radius:6px;
  padding:11px 14px;
  font-size:14px;
  margin-bottom:16px;
}
.drawer-nav{display:flex;flex-direction:column;gap:2px}
.drawer-nav a{
  font-size:15px;
  color:var(--ink);
  padding:11px 0;
  border-bottom:1px solid var(--line);
}
.drawer-nav a.active{color:var(--accent);font-weight:600}
.drawer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.drawer-tags a{
  font-size:12.5px;
  color:var(--muted);
  border:1px solid var(--line);
  border-radius:999px;
  padding:4px 12px;
  background:var(--paper);
}

/* ---------- 首屏 ---------- */
.page-hero{padding:36px 0 0}
.breadcrumb{
  font-size:12.5px;
  color:var(--muted);
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
  margin-bottom:28px;
}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:var(--line-strong)}
.hero-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:56px;
  align-items:center;
  padding-bottom:64px;
}
.hero-copy h1{
  font-size:clamp(28px,3.4vw,38px);
  line-height:1.22;
  letter-spacing:-.6px;
  margin:18px 0 0;
}
.hero-lead{
  margin-top:18px;
  font-size:17px;
  color:var(--muted);
  max-width:560px;
}
.filters{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.hero-figure{
  margin:0;
  border-radius:var(--radius-img);
  overflow:hidden;
  aspect-ratio:21/9;
  background:#EDE8DF;
  border:1px solid var(--line);
  box-shadow:var(--shadow-sm);
}
.hero-figure img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .6s var(--ease);
}
.hero-figure:hover img{transform:scale(1.02)}

/* ---------- 数据条 ---------- */
.stats{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:var(--surface);
}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:32px;
  padding:44px 0;
}
.stat .stat-label{
  display:block;
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.1em;
  color:var(--copper);
  margin-bottom:10px;
}
.stat strong{
  display:block;
  font-size:40px;
  line-height:1.15;
  font-weight:700;
  letter-spacing:-1px;
}
.stat p{font-size:13px;color:var(--muted);margin-top:8px;line-height:1.7}

/* ---------- 卡片通用 ---------- */
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.card:hover{
  transform:translateY(-2px);
  border-color:var(--line-strong);
  box-shadow:var(--shadow-md);
}

/* ---------- 场景墙 ---------- */
.scene-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.scene-card{
  display:flex;
  flex-direction:column;
  padding:24px 22px;
  gap:12px;
}
.scene-num{
  font-family:Georgia,"Times New Roman",serif;
  font-size:13px;
  letter-spacing:.14em;
  color:var(--copper);
}
.scene-card h3{font-size:18px;line-height:1.4;font-weight:600}
.scene-card p{
  font-size:14px;
  color:var(--muted);
  line-height:1.75;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.scene-meta{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-size:12.5px;
  color:var(--muted);
}
.scene-meta .tag{
  color:var(--accent);
  background:rgba(31,75,63,.07);
  border-radius:4px;
  padding:2px 8px;
  font-weight:600;
}

/* ---------- 样本横卡 ---------- */
.sample-card{
  display:grid;
  grid-template-columns:1fr 1.15fr;
  gap:0;
  overflow:hidden;
}
.sample-image{
  min-height:320px;
  background:#EDE8DF;
  position:relative;
}
.sample-image img{
  width:100%;height:100%;
  object-fit:cover;
  position:absolute;
  inset:0;
}
.sample-body{
  padding:44px 44px 40px;
  display:flex;
  flex-direction:column;
  justify-content:center;
  gap:16px;
}
.sample-body h3{font-size:24px;line-height:1.35}
.sample-body > p{color:var(--muted);font-size:15px}
.point-list{display:flex;flex-direction:column;gap:10px;margin-top:4px}
.point-list li{
  position:relative;
  padding-left:20px;
  font-size:14.5px;
  color:var(--ink);
  line-height:1.75;
}
.point-list li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:7px;height:7px;
  background:var(--copper);
  border-radius:1px;
}

/* ---------- 实施路径 ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
  border-top:1px solid var(--line);
}
.step{
  padding:32px 26px 8px 0;
  border-right:1px solid var(--line);
}
.step:last-child{border-right:0;padding-right:0}
.step:not(:first-child){padding-left:26px}
.step-num{
  font-family:Georgia,"Times New Roman",serif;
  font-size:14px;
  color:var(--copper);
  letter-spacing:.1em;
}
.step h3{font-size:19px;margin:12px 0 10px}
.step p{font-size:14px;color:var(--muted);line-height:1.8}

/* ---------- 对照栏 ---------- */
.compare-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.compare-col{
  padding:32px 30px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);
}
.compare-col h3{
  font-size:19px;
  margin-bottom:6px;
  display:flex;
  align-items:center;
  gap:10px;
}
.compare-col h3 .dot{
  width:8px;height:8px;border-radius:1px;background:var(--warn);flex:none;
}
.compare-col.is-solution h3 .dot{background:var(--accent)}
.compare-col > p{font-size:13.5px;color:var(--muted);margin-bottom:20px}
.compare-list{display:flex;flex-direction:column}
.compare-list li{
  font-size:14.5px;
  line-height:1.75;
  padding:14px 0;
  border-top:1px solid var(--line);
  color:var(--ink);
}
.compare-list li:first-child{border-top:0;padding-top:0}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:840px}
.faq{border-top:1px solid var(--line);margin-top:8px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;
  background:none;
  border:0;
  padding:22px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  text-align:left;
  cursor:pointer;
  transition:color .18s ease;
}
.faq-q:hover{color:var(--accent)}
.faq-icon{position:relative;width:16px;height:16px;flex:none}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--accent);
  transition:transform .22s ease,opacity .22s ease;
}
.faq-icon::before{left:0;top:7px;width:16px;height:1.5px}
.faq-icon::after{left:7px;top:0;width:1.5px;height:16px}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.is-open .faq-a{max-height:340px}
.faq-a p{
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
  margin:0 0 22px;
  padding-right:40px;
}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--ink);
  color:#fff;
  border-radius:var(--radius-card);
  padding:60px 56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
  flex-wrap:wrap;
}
.cta-copy{max-width:600px}
.cta-copy h2{font-size:28px;color:#fff;line-height:1.35}
.cta-copy p{margin-top:14px;font-size:15px;color:rgba(255,255,255,.74);line-height:1.8}
.cta-note{
  margin-top:16px !important;
  font-size:13px !important;
  color:rgba(255,255,255,.55) !important;
  border-top:1px solid rgba(255,255,255,.14);
  padding-top:14px;
}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-band .btn-ghost{border-color:rgba(255,255,255,.38);color:#fff}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:var(--surface);
  padding:64px 0 0;
  margin-top:8px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.3fr;
  gap:40px;
}
.footer-brand .brand{font-size:18px;margin-bottom:16px}
.footer-brand p{font-size:13.5px;color:var(--muted);line-height:1.85;max-width:320px}
.footer-col h4{font-size:14px;margin-bottom:16px;letter-spacing:0}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--muted);transition:color .18s ease}
.footer-col a:hover{color:var(--accent)}
.footer-col p{font-size:13.5px;color:var(--muted);line-height:1.85}
.mini-note{font-size:12.5px !important;margin-top:10px;color:var(--muted)}
.footer-bottom{
  border-top:1px solid var(--line);
  margin-top:48px;
  padding:20px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--muted);
}
.footer-bottom a{color:var(--muted)}
.footer-bottom a:hover{color:var(--accent)}

/* ---------- 动效 ---------- */
.reveal{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .48s var(--ease),transform .48s var(--ease);
}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .card,.btn,.hero-figure img{transition:none !important}
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .section{padding:72px 0}
  .hero-grid{grid-template-columns:1fr;gap:36px;padding-bottom:52px}
  .hero-figure{aspect-ratio:16/9}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:28px;padding:36px 0}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step{border-right:0;padding:28px 24px 12px 0}
  .step:not(:first-child){padding-left:0}
  .step:nth-child(odd){padding-right:24px}
  .sample-card{grid-template-columns:1fr}
  .sample-image{min-height:240px;position:relative;aspect-ratio:16/9}
  .sample-image img{position:static;height:100%}
  .sample-body{padding:32px 28px 34px}
  .compare-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}
  .cta-band{padding:48px 36px}
}
@media (max-width:900px){
  .subbar{display:none}
  .nav-toggle{display:inline-flex}
  .topbar-right{gap:12px}
}
@media (max-width:768px){
  .container{padding-left:20px;padding-right:20px}
  .section{padding:56px 0}
  .section-head{margin-bottom:28px;gap:16px}
  .section-head h2{font-size:24px}
  .hero-copy h1{font-size:30px}
  .hero-lead{font-size:16px}
  .stats-grid{grid-template-columns:1fr;gap:22px}
  .stat strong{font-size:34px}
  .scene-grid{grid-template-columns:1fr;gap:16px}
  .steps{grid-template-columns:1fr}
  .step{padding:24px 0 !important;border-bottom:1px solid var(--line)}
  .step:last-child{border-bottom:0}
  .sample-body{padding:26px 20px 28px}
  .sample-body h3{font-size:21px}
  .compare-col{padding:24px 20px}
  .cta-band{padding:36px 22px;gap:24px}
  .cta-copy h2{font-size:22px}
  .faq-a p{padding-right:0}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .top-link{display:none}
  .topbar-right .btn-primary{display:none}
  .brand{font-size:18px}
  .hero-copy h1{font-size:27px}
  .scene-card{padding:20px 18px}
}