/* roulang page: index */
:root{
  --c-ink:#14171A;--c-ink-2:#1E242A;--c-primary:#F04E23;--c-primary-d:#C93A15;
  --c-second:#12796A;--c-accent:#FFC845;--c-bg:#F6F5F2;--c-surface:#FFFFFF;
  --c-line:#E5E2DA;--c-text:#1A1D21;--c-muted:#5B636B;--c-invert:#F2F4F5;
  --r-s:8px;--r-m:12px;--r-l:18px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(20,23,26,.06);
  --sh-2:0 8px 24px rgba(20,23,26,.10);
  --sh-3:0 18px 44px rgba(20,23,26,.16);
  --nav-w:264px;
  --font-num:"Barlow Condensed","Oswald",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;padding:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;line-height:1.85;color:var(--c-text);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:800;letter-spacing:-.01em;color:var(--c-text);}
h1{font-size:clamp(28px,4vw,44px);line-height:1.25;}
h2{font-size:clamp(24px,2.6vw,32px);}
h3{font-size:18px;font-weight:700;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s ease,background .2s ease,border-color .2s ease,transform .2s ease;}
button,input,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}
::selection{background:rgba(240,78,35,.18);}

/* ============ 布局骨架 ============ */
.site{padding-left:var(--nav-w);min-height:100vh;display:flex;flex-direction:column;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section-ink{background:var(--c-ink);color:var(--c-invert);}
.section-ink h2,.section-ink h3{color:var(--c-invert);}
.section-alt{background:#FFFFFF;}

/* ============ 品牌 ============ */
.brand{display:flex;align-items:center;gap:12px;padding:0 22px 24px;}
.brand-mark{
  width:36px;height:36px;background:var(--c-primary);border-radius:6px;
  transform:skewX(-9deg);display:flex;align-items:center;justify-content:center;
  color:#fff;font-weight:800;font-size:18px;flex:0 0 36px;
}
.brand-mark span{transform:skewX(9deg);font-family:var(--font-num);line-height:1;}
.brand-name{font-size:19px;font-weight:800;color:var(--c-invert);letter-spacing:-.01em;line-height:1.2;}
.brand-sub{display:block;font-size:11px;color:#8A9199;letter-spacing:.1em;margin-top:3px;font-family:var(--font-num);}

/* ============ 左侧竖导航 ============ */
.side-nav{
  position:fixed;top:0;left:0;bottom:0;width:var(--nav-w);
  background:var(--c-ink);display:flex;flex-direction:column;
  padding:28px 0 20px;z-index:60;overflow-y:auto;
}
.side-nav::-webkit-scrollbar{width:6px;}
.side-nav::-webkit-scrollbar-thumb{background:rgba(255,255,255,.16);border-radius:3px;}
.nav-list{display:flex;flex-direction:column;gap:2px;padding:0 12px;flex:1 1 auto;}
.nav-list a{
  position:relative;display:flex;align-items:center;height:48px;
  padding:0 14px 0 20px;border-radius:var(--r-s);
  font-size:15px;color:#C6CCD2;
}
.nav-list a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%) scaleY(0);
  width:3px;height:22px;background:var(--c-primary);border-radius:0 3px 3px 0;
  transition:transform .22s ease;
}
.nav-list a:hover{background:rgba(255,255,255,.06);color:#fff;}
.nav-list a:hover::before{transform:translateY(-50%) scaleY(.72);}
.nav-list a.active{background:rgba(240,78,35,.13);color:var(--c-invert);}
.nav-list a.active::before{transform:translateY(-50%) scaleY(1);}
.nav-list a.active::after{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--c-primary);
  margin-left:auto;
}
.nav-foot{margin:20px 12px 0;padding:18px 10px 0;border-top:1px solid rgba(255,255,255,.12);}
.nav-foot .tel{display:block;font-size:16px;font-weight:700;color:var(--c-invert);letter-spacing:.02em;}
.nav-foot .time{display:block;font-size:12px;color:#8A9199;margin-top:4px;}

/* ============ 顶部栏 + 抽屉（<1024） ============ */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:60px;z-index:70;
  background:#fff;border-bottom:1px solid var(--c-line);
  align-items:center;justify-content:space-between;padding:0 16px;
  box-shadow:var(--sh-1);
}
.topbar .brand{padding:0;margin:0;}
.topbar .brand-mark{width:30px;height:30px;flex:0 0 30px;font-size:15px;}
.topbar .brand-name{font-size:17px;color:var(--c-text);}
.nav-toggle{
  width:44px;height:44px;border:1px solid var(--c-line);background:#fff;border-radius:var(--r-s);
  display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-text);border-radius:2px;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:86%;max-width:340px;z-index:90;
  background:var(--c-ink);color:var(--c-invert);padding:24px 20px;
  display:flex;flex-direction:column;transform:translateX(105%);
  transition:transform .28s ease;
}
.drawer.open{transform:translateX(0);}
.drawer .brand{padding:0 0 22px;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;flex:1;}
.drawer-nav a{
  display:flex;align-items:center;height:48px;padding:0 14px;border-radius:var(--r-s);
  color:#C6CCD2;font-size:15px;border-left:3px solid transparent;
}
.drawer-nav a.active{background:rgba(240,78,35,.13);color:#fff;border-left-color:var(--c-primary);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,23,26,.55);z-index:85;
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.drawer-mask.open{opacity:1;visibility:visible;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-d);transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-outline{border-color:var(--c-second);color:var(--c-second);background:transparent;}
.btn-outline:hover{background:var(--c-second);color:#fff;}
.btn-ghost-light{border-color:rgba(255,255,255,.35);color:#fff;background:transparent;}
.btn-ghost-light:hover{border-color:#fff;background:rgba(255,255,255,.08);}
.btn-block{width:100%;}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:13px;font-weight:600;line-height:1;
}
.badge-cat{background:rgba(18,121,106,.10);color:var(--c-second);}
.badge-time{background:#EFEDE7;color:var(--c-muted);}

/* ============ 板块标题 ============ */
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;margin-bottom:44px;}
.sec-kicker{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.12em;
  color:var(--c-primary);margin-bottom:12px;
}
.sec-kicker::before{
  content:"";display:inline-block;width:18px;height:3px;background:var(--c-primary);
  border-radius:2px;margin-right:8px;vertical-align:middle;
}
.sec-head p.sec-desc{max-width:40em;font-size:15px;color:var(--c-muted);line-height:1.8;}
.link-more{font-size:14px;font-weight:700;color:var(--c-second);white-space:nowrap;}
.link-more:hover{color:var(--c-primary-d);transform:translateX(3px);}

/* ============ Hero ============ */
.hero{padding:76px 0 0;background:var(--c-bg);}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--c-second);background:rgba(18,121,106,.09);
  padding:6px 14px;border-radius:var(--r-pill);margin-bottom:20px;
}
.hero h1{margin-bottom:18px;}
.hero h1 em{font-style:normal;color:var(--c-primary);}
.hero-sub{font-size:17px;color:var(--c-muted);line-height:1.8;max-width:34em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 26px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;}
.hero-tags li{
  display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--c-muted);
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-pill);
  padding:6px 14px;
}
.hero-tags li::before{
  content:"";width:7px;height:7px;border-radius:2px;background:var(--c-second);
  transform:rotate(45deg);
}
.hero-media{position:relative;border-radius:var(--r-l);overflow:hidden;aspect-ratio:16/10;box-shadow:var(--sh-2);}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media::after{content:"";position:absolute;inset:0;background:rgba(20,23,26,.2);}
.hero-corner{
  position:absolute;right:0;bottom:0;z-index:2;height:58px;width:132px;
  background:var(--c-primary);color:#fff;font-family:var(--font-num);
  font-size:20px;font-weight:700;letter-spacing:.1em;
  display:flex;align-items:center;justify-content:center;
  clip-path:polygon(20% 0,100% 0,100% 100%,0 100%);
}
/* 数据条 */
.stat-band{background:var(--c-ink);margin-top:64px;padding:30px 0;}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.stat{padding:4px 22px;border-left:1px solid rgba(255,255,255,.12);}
.stat:first-child{border-left:0;padding-left:0;}
.stat .num{
  display:block;font-family:var(--font-num);font-weight:700;
  font-size:clamp(34px,3.4vw,46px);line-height:1;color:var(--c-accent);letter-spacing:.02em;
}
.stat .cap{display:block;margin-top:9px;font-size:12px;color:#A9B0B6;line-height:1.6;}

/* ============ 服务条目 ============ */
.svc-grid{display:grid;grid-template-columns:7fr 5fr;gap:0 44px;}
.svc-list{display:flex;flex-direction:column;border-top:1px solid var(--c-line);}
.svc-item{
  position:relative;display:flex;align-items:center;gap:18px;min-height:88px;
  padding:16px 18px 16px 22px;border-bottom:1px solid var(--c-line);
  transition:background .22s ease;
}
.svc-item::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:4px;
  background:var(--c-primary);border-radius:2px;transform:scaleY(0);
  transition:transform .22s ease;
}
.svc-item:hover{background:#FBFAF7;}
.svc-item:hover::before{transform:scaleY(1);}
.svc-item:hover .svc-arrow{transform:translateX(4px);color:var(--c-primary);}
.svc-num{
  font-family:var(--font-num);font-size:26px;font-weight:700;color:var(--c-primary);
  opacity:.38;min-width:42px;line-height:1;
}
.svc-body{flex:1 1 auto;min-width:0;}
.svc-body h3{font-size:18px;margin-bottom:4px;}
.svc-body p{font-size:14px;color:var(--c-muted);line-height:1.7;}
.svc-arrow{color:var(--c-muted);font-size:18px;transition:transform .22s ease,color .22s ease;}

/* ============ 案例 ============ */
.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.case-card{
  position:relative;display:block;border-radius:var(--r-l);overflow:hidden;
  aspect-ratio:16/9;box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease;
}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.case-card img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.case-card:hover img{transform:scale(1.04);}
.case-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(20,23,26,0) 38%,rgba(20,23,26,.85) 100%);
}
.case-cap{position:absolute;left:26px;right:26px;bottom:22px;z-index:2;color:#fff;}
.case-cap span{
  display:inline-block;font-family:var(--font-num);font-size:13px;letter-spacing:.12em;
  color:var(--c-accent);margin-bottom:6px;
}
.case-cap h3{color:#fff;font-size:19px;margin-bottom:4px;}
.case-cap p{font-size:13px;color:rgba(242,244,245,.78);line-height:1.65;}

/* ============ 图文方案 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;}
.split + .split{margin-top:76px;}
.split-rev .split-media{order:-1;}
.split-media{border-radius:var(--r-l);overflow:hidden;aspect-ratio:4/3;box-shadow:var(--sh-1);}
.split-media img{width:100%;height:100%;object-fit:cover;}
.split-text h3{font-size:clamp(20px,2vw,26px);margin-bottom:14px;}
.split-text > p{font-size:15px;color:var(--c-muted);line-height:1.85;margin-bottom:20px;}
.point-list li{
  position:relative;padding-left:20px;font-size:14px;color:var(--c-muted);
  margin-bottom:10px;line-height:1.75;
}
.point-list li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;
  background:var(--c-primary);border-radius:2px;
}

/* ============ 最新信息 ============ */
.news-list{border-top:1px solid var(--c-line);}
.news-item{
  display:grid;grid-template-columns:220px 1fr;gap:24px;
  padding:22px 20px;border-bottom:1px solid var(--c-line);
  border-left:3px solid transparent;transition:background .22s ease,border-color .22s ease;
}
.news-item:hover{background:#FBFAF7;border-left-color:var(--c-primary);}
.news-thumb{
  aspect-ratio:16/10;background:#EFEDE7;border-radius:var(--r-m);overflow:hidden;
  display:flex;align-items:center;justify-content:center;
  color:rgba(91,99,107,.5);font-family:var(--font-num);font-size:26px;letter-spacing:.1em;
}
.news-thumb img{width:100%;height:100%;object-fit:cover;}
.news-body{min-width:0;display:flex;flex-direction:column;}
.news-body h3{
  font-size:18px;font-weight:700;margin:10px 0 8px;transition:color .2s ease;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-item:hover .news-body h3{color:var(--c-primary-d);}
.news-body p{
  font-size:14px;color:var(--c-muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  margin-top:14px;font-size:13px;color:var(--c-muted);
}
.news-meta .go{font-weight:700;color:var(--c-second);transition:transform .2s ease;}
.news-item:hover .news-meta .go{transform:translateX(4px);color:var(--c-primary);}
.news-empty{
  border:1px dashed var(--c-line);border-radius:var(--r-m);background:var(--c-surface);
  padding:46px 24px;text-align:center;color:var(--c-muted);font-size:14px;
}
.news-empty .btn{margin-top:18px;}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-m);
  margin-bottom:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:rgba(240,78,35,.45);box-shadow:var(--sh-1);}
.faq-item summary{
  position:relative;list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 22px 18px 28px;font-size:17px;font-weight:700;line-height:1.5;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:15px;bottom:15px;width:4px;
  background:var(--c-primary);border-radius:0 3px 3px 0;opacity:0;transition:opacity .2s ease;
}
.faq-item[open] summary::before{opacity:1;}
.faq-item summary::after{
  content:"+";font-size:22px;font-weight:400;color:var(--c-primary);
  line-height:1;transition:transform .25s ease;flex:0 0 auto;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-body{padding:0 22px 22px 28px;}
.faq-body p{font-size:15px;color:var(--c-muted);line-height:1.85;}

/* ============ 联系 ============ */
.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:52px;align-items:start;}
.contact-info h2{margin-bottom:14px;}
.contact-info > p{font-size:15px;color:#A9B0B6;line-height:1.85;margin-bottom:28px;}
.info-list li{display:flex;gap:14px;margin-bottom:20px;}
.info-list .ico{
  flex:0 0 40px;width:40px;height:40px;border-radius:var(--r-s);
  background:rgba(18,121,106,.22);color:#5FD0BC;
  display:flex;align-items:center;justify-content:center;font-size:17px;
}
.info-list b{display:block;font-size:12px;color:#8A9199;font-weight:600;letter-spacing:.04em;}
.info-list strong{display:block;font-size:16px;color:var(--c-invert);font-weight:700;margin-top:2px;}
.contact-form{
  background:var(--c-surface);border-radius:var(--r-l);padding:32px;
  box-shadow:var(--sh-3);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--c-text);margin-bottom:8px;}
.field input,.field textarea{
  width:100%;height:48px;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-s);padding:0 14px;color:var(--c-text);transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:120px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:#9AA1A8;}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 2px rgba(240,78,35,.18);
}
.form-tip{
  display:none;margin-top:14px;font-size:14px;color:var(--c-second);
  background:rgba(18,121,106,.08);border-radius:var(--r-s);padding:10px 14px;
}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:#A9B0B6;padding:64px 0 0;margin-top:auto;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.foot-brand .brand-mark{width:32px;height:32px;flex:0 0 32px;font-size:16px;}
.foot-brand span{font-size:18px;font-weight:800;color:var(--c-invert);}
.foot-col p{font-size:14px;line-height:1.9;color:#8A9199;max-width:26em;}
.foot-col h4{
  font-size:14px;color:var(--c-accent);font-weight:700;
  letter-spacing:.06em;margin-bottom:18px;
}
.foot-col li{margin-bottom:11px;}
.foot-col a{display:inline-block;font-size:14px;color:#A9B0B6;}
.foot-col a:hover{color:var(--c-invert);transform:translateX(2px);}
.foot-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:14px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:#8A9199;
}
.foot-bottom a{color:#A9B0B6;}
.foot-bottom a:hover{color:var(--c-invert);}

/* ============ 响应式 ============ */
@media (min-width:1440px){
  .container{padding:0 32px;}
}
@media (max-width:1199.98px){
  .hero-grid{gap:40px;}
  .svc-grid{gap:0 32px;}
  .split{gap:40px;}
  .contact-grid{gap:40px;}
}
@media (max-width:1023.98px){
  .side-nav{display:none;}
  .topbar{display:flex;}
  .site{padding-left:0;padding-top:60px;}
  .section{padding:64px 0;}
  .hero{padding:48px 0 0;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-media{order:-1;}
  .svc-grid{grid-template-columns:1fr;gap:0;}
  .svc-list:last-child{border-top:0;}
  .case-grid{grid-template-columns:1fr;}
  .split{grid-template-columns:1fr;gap:28px;}
  .split-rev .split-media{order:0;}
  .contact-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767.98px){
  .section{padding:56px 0;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px;}
  .stat-grid{grid-template-columns:1fr 1fr;gap:22px 0;}
  .stat{padding:4px 16px;}
  .stat:nth-child(odd){border-left:0;padding-left:0;}
  .news-item{grid-template-columns:1fr;gap:16px;padding:20px 16px;}
  .news-thumb{aspect-ratio:16/9;}
  .form-row{grid-template-columns:1fr;}
  .contact-form{padding:24px 20px;}
  .hero-actions .btn{width:100%;}
  .hero-corner{height:48px;width:104px;font-size:16px;}
  .foot-grid{grid-template-columns:1fr;}
  .faq-item summary{font-size:16px;padding:16px 18px 16px 24px;}
  .faq-body{padding:0 18px 20px 24px;}
}
@media (max-width:575.98px){
  .container{padding:0 18px;}
  h1{font-size:clamp(24px,7vw,30px);}
  .stat-band{padding:24px 0;margin-top:48px;}
  .svc-item{gap:12px;padding:14px 12px 14px 18px;}
  .svc-num{font-size:22px;min-width:34px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: article */
:root{
  --c-ink:#14171A;
  --c-ink-2:#1E242A;
  --c-primary:#F04E23;
  --c-primary-d:#C93A15;
  --c-second:#12796A;
  --c-accent:#FFC845;
  --c-bg:#F6F5F2;
  --c-surface:#FFFFFF;
  --c-line:#E5E2DA;
  --c-text:#1A1D21;
  --c-muted:#5B636B;
  --c-invert:#F2F4F5;
  --r-s:8px; --r-m:12px; --r-l:18px; --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,23,26,.06);
  --sh-2:0 8px 24px rgba(20,23,26,.10);
  --sh-3:0 18px 44px rgba(20,23,26,.16);
  --font-num:"Barlow Condensed","Oswald","Arial Narrow",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;line-height:1.85;color:var(--c-text);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 左侧竖导航 ---------- */
.side-nav{
  position:fixed;top:0;left:0;bottom:0;width:264px;z-index:60;
  background:var(--c-ink);color:var(--c-invert);
  display:flex;flex-direction:column;
  padding:26px 0 0;overflow-y:auto;
}
.side-nav::-webkit-scrollbar{width:6px}
.side-nav::-webkit-scrollbar-thumb{background:rgba(255,255,255,.16);border-radius:6px}
.brand{display:flex;align-items:center;gap:12px;padding:0 22px 22px;border-bottom:1px solid rgba(255,255,255,.12)}
.brand-mark{
  width:38px;height:38px;flex:none;background:var(--c-primary);border-radius:6px;
  transform:skewX(-10deg);display:grid;place-items:center;
}
.brand-mark span{transform:skewX(10deg);font-family:var(--font-num);font-weight:700;font-size:21px;color:#fff;letter-spacing:.02em}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.01em;color:#fff}
.nav-list{display:flex;flex-direction:column;gap:2px;padding:18px 12px}
.nav-list a{
  position:relative;display:flex;align-items:center;height:46px;
  padding:0 14px 0 16px;font-size:15px;color:#B9C0C6;border-radius:var(--r-s);
  transition:background .2s ease,color .2s ease;
}
.nav-list a::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;
  border-radius:2px;background:transparent;transition:background .2s ease;
}
.nav-list a:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-list a:hover::before{background:var(--c-primary)}
.nav-list a.active{background:rgba(240,78,35,.14);color:#fff}
.nav-list a.active::before{background:var(--c-primary)}
.nav-list a.active::after{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-primary);margin-left:auto}
.side-contact{margin-top:auto;padding:20px 22px 26px;border-top:1px solid rgba(255,255,255,.12)}
.side-contact strong{display:block;font-size:16px;font-weight:700;color:#fff;letter-spacing:.01em}
.side-contact span{display:block;font-size:12px;color:#8A9199;margin-top:4px}
.side-contact a{display:inline-flex;align-items:center;gap:6px;margin-top:12px;font-size:13px;color:var(--c-accent)}

/* ---------- 顶部栏 & 抽屉 ---------- */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:60px;z-index:70;
  background:#fff;border-bottom:1px solid var(--c-line);
  align-items:center;justify-content:space-between;padding:0 16px;
}
.topbar .brand-mark{width:32px;height:32px}
.topbar .brand-mark span{font-size:18px}
.topbar-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16px;color:var(--c-ink)}
.burger{
  width:44px;height:44px;border:1px solid var(--c-line);background:#fff;border-radius:var(--r-s);
  display:grid;place-items:center;cursor:pointer;font-size:18px;color:var(--c-ink);
}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:86%;max-width:340px;z-index:90;
  background:var(--c-ink);color:var(--c-invert);padding:24px 18px;
  transform:translateX(100%);transition:transform .28s ease;
  display:flex;flex-direction:column;gap:4px;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;margin-bottom:10px;border-bottom:1px solid rgba(255,255,255,.12)}
.drawer-head span{font-weight:800;font-size:16px;color:#fff}
.drawer-close{width:40px;height:40px;background:transparent;border:1px solid rgba(255,255,255,.25);color:#fff;border-radius:var(--r-s);cursor:pointer}
.drawer a.d-link{
  display:flex;align-items:center;height:48px;padding:0 14px;border-radius:var(--r-s);
  font-size:15px;color:#C4CBD1;border-left:3px solid transparent;
}
.drawer a.d-link:hover,.drawer a.d-link.active{background:rgba(255,255,255,.07);color:#fff;border-left-color:var(--c-primary)}
.drawer .d-tel{
  margin-top:auto;height:48px;display:grid;place-items:center;background:var(--c-primary);color:#fff;
  border-radius:var(--r-pill);font-weight:700;
}
.drawer-mask{position:fixed;inset:0;background:rgba(20,23,26,.55);z-index:80;opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease}
.drawer-mask.open{opacity:1;visibility:visible}

/* ---------- 页面主体 ---------- */
.page-main{margin-left:264px;min-height:100vh;display:flex;flex-direction:column}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;overflow:hidden;
  background:var(--c-ink);color:var(--c-invert);
  padding:44px 0 62px;
}
.article-hero::after{
  content:"";position:absolute;right:-90px;top:-70px;width:300px;height:300px;
  background:rgba(240,78,35,.14);transform:skewX(-18deg);
}
.article-hero .wrap{position:relative;z-index:1}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;margin-bottom:18px;font-size:13px;color:rgba(242,244,245,.6)}
.crumb li{display:flex;align-items:center}
.crumb li:not(:last-child)::after{content:"/";margin:0 8px;color:rgba(242,244,245,.28)}
.crumb a:hover{color:var(--c-accent)}
.cat-badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;margin-bottom:16px;
  background:var(--c-second);color:#fff;font-size:13px;font-weight:600;border-radius:var(--r-pill);
}
.article-hero h1{
  font-size:clamp(28px,4vw,44px);line-height:1.25;font-weight:800;letter-spacing:-.01em;
  color:#fff;max-width:860px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:20px;font-size:14px;color:rgba(242,244,245,.66)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--c-primary)}
.meta-row i{color:var(--c-accent);font-size:13px}

/* ---------- 正文外壳 ---------- */
.article-shell{
  background:var(--c-surface);border-radius:var(--r-l);box-shadow:var(--sh-2);
  padding:42px 48px 46px;margin-top:-36px;position:relative;z-index:2;
}
.article-cover{margin:0 0 34px;border-radius:var(--r-m);overflow:hidden;background:#EFEDE7;aspect-ratio:16/9}
.article-cover img{width:100%;height:100%;object-fit:cover}
.article-body{max-width:760px;margin:0 auto;font-size:16px;line-height:1.9;color:var(--c-text)}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  position:relative;font-size:clamp(22px,2.4vw,28px);line-height:1.4;font-weight:800;
  margin:1.8em 0 .7em;padding-left:16px;letter-spacing:-.01em;
}
.article-body h2::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:2px;background:var(--c-primary)}
.article-body h3{font-size:19px;line-height:1.5;font-weight:700;margin:1.5em 0 .6em}
.article-body h4{font-size:17px;font-weight:700;margin:1.3em 0 .5em}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:1.4em}
.article-body ul li{list-style:disc;margin-bottom:.5em;line-height:1.9}
.article-body ol li{list-style:decimal;margin-bottom:.5em;line-height:1.9}
.article-body ol{counter-reset:none}
.article-body ul li::marker{color:var(--c-second)}
.article-body ol li::marker{color:var(--c-primary);font-weight:700;font-family:var(--font-num)}
.article-body blockquote{
  margin:1.5em 0;padding:18px 22px;background:#EFEDE7;border-left:4px solid var(--c-second);
  border-radius:0 var(--r-s) var(--r-s) 0;color:#333A40;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{width:100%;height:auto;border-radius:var(--r-m);margin:1.6em 0 .6em}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--c-muted);text-align:center;margin-top:8px;line-height:1.7}
.article-body a{color:var(--c-primary-d);border-bottom:1px solid rgba(240,78,35,.35)}
.article-body a:hover{color:var(--c-primary)}
.article-body strong{font-weight:700;color:var(--c-ink)}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px}
.article-body th{background:var(--c-ink);color:var(--c-invert);text-align:left;padding:12px 14px;font-weight:600}
.article-body td{padding:12px 14px;border-bottom:1px solid var(--c-line)}
.article-body tr:nth-child(even) td{background:#FAF9F6}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:2em 0}

.article-foot{
  max-width:760px;margin:38px auto 0;padding-top:24px;border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;
}
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:rgba(18,121,106,.10);color:var(--c-second);font-size:13px;font-weight:600;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;transition:all .2s ease;white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-primary-d);transform:translateY(-2px);box-shadow:var(--sh-2);color:#fff}
.btn-primary:active{transform:translateY(0)}
.btn-second{background:transparent;border-color:var(--c-second);color:var(--c-second)}
.btn-second:hover{background:var(--c-second);color:#fff}
.btn-ghost{background:transparent;border-color:var(--c-line);color:var(--c-text)}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary-d);transform:translateY(-2px)}
.btn-on-dark{background:transparent;border-color:rgba(255,255,255,.35);color:#fff}
.btn-on-dark:hover{border-color:#fff}

/* ---------- 空态 ---------- */
.empty-state{
  max-width:760px;margin:0 auto;padding:56px 24px;text-align:center;
  border:1px dashed var(--c-line);border-radius:var(--r-m);background:#FBFAF7;
}
.empty-state h2{font-size:22px;font-weight:800;margin-bottom:10px}
.empty-state p{color:var(--c-muted);font-size:15px;margin-bottom:22px}

/* ---------- CTA 横条 ---------- */
.cta-bar{
  margin-top:72px;background:var(--c-ink);border-radius:var(--r-l);
  padding:36px 40px;display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between;
  border:1px solid rgba(255,255,255,.12);
}
.cta-bar h2{font-size:clamp(20px,2.2vw,26px);font-weight:800;color:#fff;line-height:1.4;letter-spacing:-.01em}
.cta-bar p{margin-top:8px;font-size:14px;color:rgba(242,244,245,.66);max-width:52em}

/* ---------- 相关推荐 ---------- */
.related{margin-top:80px;padding-bottom:88px}
.sec-head{display:flex;flex-wrap:wrap;gap:14px;align-items:flex-end;justify-content:space-between;margin-bottom:26px}
.sec-head h2{font-size:clamp(24px,2.6vw,32px);font-weight:800;letter-spacing:-.01em;line-height:1.35}
.sec-head .more{font-size:14px;color:var(--c-primary-d);font-weight:600;display:inline-flex;align-items:center;gap:6px}
.sec-head .more:hover{color:var(--c-primary)}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rel-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-m);
  overflow:hidden;display:flex;flex-direction:column;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--c-primary)}
.rel-thumb{aspect-ratio:16/10;background:#EFEDE7;overflow:hidden}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.rel-card:hover .rel-thumb img{transform:scale(1.04)}
.rel-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px}
.badge{
  display:inline-flex;align-items:center;align-self:flex-start;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:13px;font-weight:600;
}
.badge-second{background:rgba(18,121,106,.10);color:var(--c-second)}
.badge-time{background:#F0EEE9;color:var(--c-muted)}
.rel-body h3{font-size:17px;line-height:1.5;font-weight:700;transition:color .2s ease}
.rel-card:hover .rel-body h3{color:var(--c-primary-d)}
.rel-body p{font-size:14px;line-height:1.7;color:var(--c-muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:#A9B0B6;margin-top:auto;padding:64px 0 0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:36px}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.foot-brand .brand-mark{width:36px;height:36px}
.foot-brand span{font-size:17px;font-weight:800;color:#fff}
.foot-col p{font-size:14px;line-height:1.8;color:#A9B0B6;max-width:30em}
.foot-col h4{font-size:14px;font-weight:700;color:var(--c-accent);margin-bottom:16px;letter-spacing:.02em}
.foot-col ul{display:flex;flex-direction:column;gap:10px}
.foot-col ul li{font-size:14px}
.foot-col ul a{font-size:14px;color:#A9B0B6;transition:color .2s ease,transform .2s ease;display:inline-block}
.foot-col ul a:hover{color:var(--c-invert);transform:translateX(2px)}
.foot-bottom{
  margin-top:48px;padding:20px 24px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#8A9199;
}
.foot-bottom a{color:#A9B0B6}
.foot-bottom a:hover{color:var(--c-invert)}

/* ---------- 断点 ---------- */
@media (max-width:1200px){
  .rel-grid{gap:20px}
  .article-shell{padding:38px 32px 40px}
}
@media (max-width:1024px){
  .side-nav{display:none}
  .topbar{display:flex}
  .page-main{margin-left:0;padding-top:60px}
  .article-hero{padding:30px 0 50px}
  .article-shell{margin-top:-28px;border-radius:var(--r-m);padding:30px 24px 34px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px}
  .rel-grid{grid-template-columns:1fr 1fr}
  .cta-bar{padding:30px 26px}
}
@media (max-width:768px){
  .wrap{padding:0 18px}
  .article-hero{padding:24px 0 46px}
  .meta-row{gap:9px;font-size:13px}
  .article-shell{padding:24px 18px 28px;border-radius:var(--r-m)}
  .article-body{font-size:15.5px}
  .rel-grid{grid-template-columns:1fr}
  .related{margin-top:60px;padding-bottom:60px}
  .cta-bar{margin-top:56px;flex-direction:column;align-items:flex-start}
  .cta-bar .btn{width:100%}
  .article-foot{flex-direction:column;align-items:flex-start}
}
@media (max-width:576px){
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;gap:6px}
  .article-hero h1{font-size:26px}
  .sec-head h2{font-size:22px}
}
@media (max-width:480px){
  .wrap{padding:0 14px}
  .article-shell{padding:20px 14px 24px}
  .btn{width:100%;justify-content:center}
  .article-foot .btn{width:100%}
}

/* roulang page: category2 */
:root{
  --c-ink:#14171A;
  --c-ink-2:#1E242A;
  --c-primary:#F04E23;
  --c-primary-d:#C93A15;
  --c-second:#12796A;
  --c-accent:#FFC845;
  --c-bg:#F6F5F2;
  --c-surface:#FFFFFF;
  --c-line:#E5E2DA;
  --c-text:#1A1D21;
  --c-muted:#5B636B;
  --c-invert:#F2F4F5;
  --r-s:8px;
  --r-m:12px;
  --r-l:18px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,23,26,.06);
  --sh-2:0 8px 24px rgba(20,23,26,.10);
  --sh-3:0 18px 44px rgba(20,23,26,.16);
  --font-cn:"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-num:"Barlow Condensed","Oswald",sans-serif;
  --nav-w:264px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,transform .2s ease}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer;border:0;background:none}
input,textarea{font-family:inherit}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
::selection{background:var(--c-primary);color:#fff}

.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 左侧竖向导航 ---------- */
.side-nav{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--nav-w);
  background:var(--c-ink);
  color:var(--c-invert);
  display:flex;
  flex-direction:column;
  border-right:1px solid rgba(255,255,255,.08);
  z-index:60;
  overflow-y:auto;
  scrollbar-width:thin;
}
.side-nav::-webkit-scrollbar{width:6px}
.side-nav::-webkit-scrollbar-thumb{background:#3A4149;border-radius:6px}
.side-brand{
  display:flex;align-items:center;gap:12px;
  padding:26px 22px 22px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;
  background:var(--c-primary);
  clip-path:polygon(0 0,100% 0,100% 72%,72% 100%,0 100%);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);
  font-size:22px;font-weight:700;color:#fff;letter-spacing:.02em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:16px;font-weight:800;color:#fff;letter-spacing:-0.01em}
.brand-text span{font-size:11px;color:#8A9199;letter-spacing:.06em;text-transform:uppercase;font-family:var(--font-num)}
.nav-label{
  padding:22px 22px 8px;
  font-size:11px;letter-spacing:.14em;color:#767E86;
  font-family:var(--font-num);text-transform:uppercase;
}
.nav-list{display:flex;flex-direction:column;gap:2px;padding:0 0 12px}
.nav-list a{
  position:relative;
  display:flex;align-items:center;
  height:44px;padding:0 20px 0 22px;
  font-size:15px;color:#A9B0B6;
}
.nav-list a::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;
  background:transparent;border-radius:0 3px 3px 0;
  transition:background-color .2s ease;
}
.nav-list a::after{
  content:"";width:6px;height:6px;border-radius:50%;
  background:transparent;margin-left:auto;transition:background-color .2s ease;
}
.nav-list a:hover{background:rgba(255,255,255,.06);color:var(--c-invert)}
.nav-list a:hover::before{background:var(--c-primary)}
.nav-list a.active{color:#fff;font-weight:700}
.nav-list a.active::before{background:var(--c-primary)}
.nav-list a.active::after{background:var(--c-primary)}
.side-foot{
  margin-top:auto;
  padding:22px;
  border-top:1px solid rgba(255,255,255,.08);
  background:var(--c-ink-2);
}
.side-foot p{font-size:12px;color:#8A9199;margin-bottom:6px;letter-spacing:.04em}
.side-foot strong{display:block;font-size:16px;font-weight:800;color:#fff;letter-spacing:.01em}
.side-foot em{display:block;font-style:normal;font-size:12px;color:#8A9199;margin-top:4px}

/* ---------- 移动顶栏与抽屉 ---------- */
.topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:60px;
  background:#fff;border-bottom:1px solid var(--c-line);
  align-items:center;justify-content:space-between;
  padding:0 16px;z-index:70;
}
.topbar .brand-mark{width:32px;height:32px;flex:0 0 32px;font-size:19px}
.topbar-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16px;color:var(--c-text)}
.hamb{
  width:44px;height:44px;display:flex;align-items:center;justify-content:center;
  color:var(--c-text);font-size:20px;
}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:86%;max-width:360px;
  background:var(--c-ink);color:var(--c-invert);z-index:90;
  transform:translateX(102%);
  transition:transform .28s ease;
  display:flex;flex-direction:column;
  padding:22px 0 20px;
}
.drawer.open{transform:translateX(0)}
.drawer-close{
  align-self:flex-end;width:44px;height:44px;margin:0 12px 8px;
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:20px;
}
.drawer .nav-list a{height:48px;font-size:16px}
.drawer-foot{margin-top:auto;padding:18px 22px 0;border-top:1px solid rgba(255,255,255,.12)}
.mask{
  position:fixed;inset:0;background:rgba(20,23,26,.5);z-index:80;
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.mask.show{opacity:1;visibility:visible}

/* ---------- 主内容骨架 ---------- */
.sheet{margin-left:var(--nav-w);min-height:100vh;display:flex;flex-direction:column}
main{flex:1}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-primary-d);transform:translateY(-2px);box-shadow:var(--sh-2);color:#fff}
.btn-primary:active{transform:translateY(0)}
.btn-second{border:1px solid var(--c-second);color:var(--c-second);background:transparent}
.btn-second:hover{background:var(--c-second);color:#fff;transform:translateY(-2px)}
.btn-ghost{border:1px solid rgba(255,255,255,.35);color:#fff;background:transparent}
.btn-ghost:hover{border-color:#fff;color:#fff;transform:translateY(-2px)}
.btn-dark{background:var(--c-ink);color:#fff}
.btn-dark:hover{background:var(--c-ink-2);transform:translateY(-2px);box-shadow:var(--sh-2)}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  background:var(--c-ink) url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  color:#fff;overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(95deg,rgba(20,23,26,.94) 0%,rgba(20,23,26,.80) 52%,rgba(20,23,26,.48) 100%);
}
.hero-inner{position:relative;max-width:1200px;margin:0 auto;padding:60px 24px 76px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:#98A0A7;margin-bottom:22px}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:#5C646B}
.breadcrumb a:hover{color:var(--c-accent)}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  height:26px;padding:0 14px;border-radius:var(--r-pill);
  background:rgba(240,78,35,.16);border:1px solid rgba(240,78,35,.5);
  color:#FFB199;font-size:13px;font-weight:600;
}
.hero-inner h1{
  margin:20px 0 16px;
  font-size:clamp(28px,4vw,44px);
  line-height:1.25;font-weight:800;letter-spacing:-0.01em;
  max-width:20em;
}
.hero-sub{max-width:40em;font-size:16px;line-height:1.85;color:#C7CDD2}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-facts{
  position:relative;display:flex;flex-wrap:wrap;gap:10px;margin-top:34px;
}
.hero-facts span{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:#AEB5BB;
  padding-left:14px;position:relative;
}
.hero-facts span::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:6px;height:6px;background:var(--c-accent);border-radius:1px;
}
.hero-cut{
  position:absolute;right:0;bottom:0;width:120px;height:120px;
  background:var(--c-primary);
  clip-path:polygon(100% 0,100% 100%,0 100%);
  opacity:.85;
}
@media (max-width:768px){.hero-cut{width:72px;height:72px}}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section.tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:44px}
.section-head .eyebrow{
  display:inline-block;font-family:var(--font-num);
  font-size:13px;letter-spacing:.18em;color:var(--c-primary);text-transform:uppercase;
  margin-bottom:12px;
}
.section-head h2{
  font-size:clamp(24px,2.6vw,32px);line-height:1.35;font-weight:800;letter-spacing:-0.01em;
  position:relative;padding-left:16px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  background:var(--c-primary);border-radius:2px;
}
.section-head p{margin-top:14px;color:var(--c-muted);max-width:40em}

/* ---------- 锚点目录 + 长内容 ---------- */
.anchor-layout{
  display:grid;grid-template-columns:200px minmax(0,1fr);
  gap:48px;align-items:start;
}
.toc{position:sticky;top:32px}
.toc h3{
  font-size:13px;letter-spacing:.1em;color:var(--c-muted);
  font-family:var(--font-num);text-transform:uppercase;margin-bottom:14px;
}
.toc ol{display:flex;flex-direction:column;gap:2px;border-left:1px solid var(--c-line)}
.toc a{
  position:relative;display:block;
  padding:10px 12px 10px 18px;
  font-size:14px;color:var(--c-muted);line-height:1.5;
}
.toc a::before{
  content:"";position:absolute;left:-1px;top:6px;bottom:6px;width:3px;
  background:transparent;border-radius:0 2px 2px 0;transition:background-color .2s ease;
}
.toc a:hover{color:var(--c-text)}
.toc a:hover::before{background:var(--c-primary)}
.toc a.current{color:var(--c-ink);font-weight:700}
.toc a.current::before{background:var(--c-primary)}

.content-body{max-width:760px}
.doc-block{padding-bottom:56px;border-bottom:1px solid var(--c-line);margin-bottom:56px}
.doc-block:last-of-type{border-bottom:0;margin-bottom:0;padding-bottom:0}
.doc-block h2{
  position:relative;padding-left:16px;
  font-size:clamp(22px,2.2vw,28px);font-weight:800;line-height:1.4;letter-spacing:-0.01em;
  margin-bottom:18px;
}
.doc-block h2::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;
  background:var(--c-primary);border-radius:2px;
}
.doc-block p{color:var(--c-text);margin-bottom:1.2em}
.doc-block p.lead{color:var(--c-muted)}
.doc-block h3{font-size:18px;font-weight:700;margin:26px 0 10px}
.doc-num{
  display:inline-block;font-family:var(--font-num);font-size:14px;font-weight:700;
  color:var(--c-primary);letter-spacing:.08em;margin-bottom:8px;
}
.figure{border-radius:var(--r-m);overflow:hidden;background:#EFEDE7;margin:0 0 26px}
.figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.figure figcaption{font-size:13px;color:var(--c-muted);padding:10px 14px;background:#fff;border-top:1px solid var(--c-line)}
.bullet-list{display:flex;flex-direction:column;gap:12px;margin:8px 0 22px}
.bullet-list li{position:relative;padding-left:22px;color:var(--c-text)}
.bullet-list li::before{
  content:"";position:absolute;left:0;top:11px;
  width:8px;height:8px;background:var(--c-primary);border-radius:2px;
}
.inline-tip{
  background:#EFEDE7;border-left:4px solid var(--c-second);
  border-radius:0 var(--r-s) var(--r-s) 0;
  padding:16px 20px;color:var(--c-text);font-size:15px;line-height:1.8;
  margin:22px 0;
}
.inline-tip strong{color:var(--c-second)}
.step-list{counter-reset:step;display:flex;flex-direction:column;gap:16px;margin:10px 0 22px}
.step-list li{
  position:relative;padding-left:46px;counter-increment:step;
}
.step-list li::before{
  content:counter(step,decimal-leading-zero);
  position:absolute;left:0;top:2px;
  font-family:var(--font-num);font-size:20px;font-weight:700;color:var(--c-primary);
  line-height:1;letter-spacing:.02em;
}
.step-list li strong{display:block;font-weight:700;margin-bottom:4px}

/* ---------- 对比表 ---------- */
.table-wrap{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-l);overflow:hidden;box-shadow:var(--sh-1)}
table.compare{width:100%;border-collapse:collapse;font-size:15px}
table.compare caption{
  text-align:left;padding:20px 24px 0;font-size:14px;color:var(--c-muted);
}
table.compare thead th{
  background:var(--c-ink);color:var(--c-invert);
  text-align:left;font-size:14px;font-weight:700;letter-spacing:.02em;
  padding:16px 24px;
}
table.compare tbody td{
  padding:16px 24px;border-top:1px solid var(--c-line);vertical-align:top;color:var(--c-text);
}
table.compare tbody tr:nth-child(even){background:#FAF9F6}
table.compare tbody td:first-child{font-weight:700}
table.compare .cell-tag{
  display:inline-block;height:24px;line-height:24px;padding:0 10px;border-radius:var(--r-pill);
  font-size:12px;background:rgba(18,121,106,.10);color:var(--c-second);font-weight:600;
}
.table-scroll{overflow-x:auto}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-m);
  margin-bottom:12px;overflow:hidden;transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item:hover{border-color:#D8D3C8}
.faq-item.open{box-shadow:var(--sh-2);border-color:var(--c-line)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;
  padding:18px 22px;text-align:left;
  font-size:16px;font-weight:700;color:var(--c-text);
}
.faq-q .bar{
  position:absolute;left:0;top:0;bottom:0;width:4px;background:transparent;
}
.faq-item{position:relative}
.faq-item.open .faq-q .bar{background:var(--c-primary)}
.faq-q i{
  margin-left:auto;color:var(--c-muted);font-size:14px;
  transition:transform .25s ease,color .2s ease;
}
.faq-item.open .faq-q i{transform:rotate(180deg);color:var(--c-primary)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a .inner{padding:0 22px 20px 22px;color:var(--c-muted);font-size:15px;line-height:1.85}

/* ---------- CTA 横条 ---------- */
.cta-band{background:var(--c-ink);color:var(--c-invert);position:relative;overflow:hidden}
.cta-band .container{
  position:relative;z-index:2;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:26px;padding-top:52px;padding-bottom:52px;
}
.cta-band::after{
  content:"";position:absolute;right:-40px;top:-60px;width:280px;height:280px;
  background:rgba(240,78,35,.16);clip-path:polygon(40% 0,100% 0,100% 60%,0 100%);z-index:1;
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);font-weight:800;line-height:1.35;margin-bottom:10px}
.cta-band p{color:#AEB5BB;max-width:38em;font-size:15px}
.cta-band .cta-num{font-family:var(--font-num);color:var(--c-accent);font-size:22px;letter-spacing:.04em}

/* ---------- 相关入口 pill 卡 ---------- */
.pill-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.pill-card{
  display:flex;flex-direction:column;gap:10px;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-l);padding:22px 22px 24px;
  box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.pill-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#DCD7CB}
.pill-card .ico{
  width:40px;height:40px;border-radius:10px;
  background:rgba(18,121,106,.10);color:var(--c-second);
  display:flex;align-items:center;justify-content:center;font-size:17px;
}
.pill-card h3{font-size:17px;font-weight:700}
.pill-card p{font-size:14px;color:var(--c-muted);line-height:1.7}
.pill-card .go{font-size:13px;font-weight:700;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;margin-top:2px}
.pill-card:hover .go{color:var(--c-primary-d)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:var(--c-invert);margin-top:0}
.foot-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:36px;padding:64px 0 44px;
}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.foot-brand .brand-mark{width:36px;height:36px;flex:0 0 36px;font-size:20px}
.foot-brand span{font-size:17px;font-weight:800;color:#fff}
.foot-col p{font-size:14px;color:#A9B0B6;line-height:1.8;max-width:30em}
.foot-col h4{
  font-size:14px;color:var(--c-accent);font-weight:700;
  margin-bottom:16px;letter-spacing:.04em;
}
.foot-col ul{display:flex;flex-direction:column;gap:10px}
.foot-col li{font-size:14px;color:#A9B0B6;line-height:1.7}
.foot-col a{font-size:14px;color:#A9B0B6}
.foot-col a:hover{color:var(--c-invert);transform:translateX(2px);display:inline-block}
.foot-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 28px;font-size:13px;color:#8A9199;
}
.foot-bottom a{color:#8A9199;text-decoration:underline;text-decoration-color:rgba(255,255,255,.25)}
.foot-bottom a:hover{color:var(--c-invert)}

/* ---------- 响应式 ---------- */
@media (min-width:1440px){
  .container{padding:0 32px}
  .hero-inner{padding:72px 32px 88px}
}
@media (max-width:1200px){
  .pill-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:1024px){
  .side-nav{display:none}
  .topbar{display:flex}
  .sheet{margin-left:0;padding-top:60px}
  .anchor-layout{grid-template-columns:1fr;gap:0}
  .toc{
    position:static;
    background:var(--c-surface);
    border:1px solid var(--c-line);
    border-radius:var(--r-m);
    padding:16px 16px 12px;
    margin-bottom:40px;
  }
  .toc ol{
    flex-direction:row;gap:8px;overflow-x:auto;
    border-left:0;padding-bottom:6px;
  }
  .toc li{flex:0 0 auto}
  .toc a{
    padding:8px 14px;border-radius:var(--r-pill);
    border:1px solid var(--c-line);background:#fff;white-space:nowrap;
  }
  .toc a::before{display:none}
  .toc a.current{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}
  .section{padding:64px 0}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px}
}
@media (max-width:768px){
  body{font-size:15.5px}
  .hero-inner{padding:44px 20px 60px}
  .hero-actions .btn{width:100%}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .cta-band .container{padding-top:44px;padding-bottom:44px}
  .cta-band .btn{width:100%}
  .pill-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .doc-block{padding-bottom:40px;margin-bottom:40px}
  table.compare{font-size:14px}
  table.compare thead th,table.compare tbody td{padding:14px 16px}
}
@media (max-width:576px){
  .container{padding:0 18px}
  .hero-facts{flex-direction:column;gap:8px}
  .toc{padding:14px}
}
@media (max-width:480px){
  .hero-inner h1{font-size:26px}
  .faq-q{padding:16px 18px;font-size:15px}
  .faq-a .inner{padding:0 18px 18px}
  .btn{height:44px;padding:0 18px;font-size:14.5px}
}

/* roulang page: category1 */
:root{
  --c-ink:#14171A;
  --c-ink-2:#1E242A;
  --c-primary:#F04E23;
  --c-primary-d:#C93A15;
  --c-second:#12796A;
  --c-accent:#FFC845;
  --c-bg:#F6F5F2;
  --c-surface:#FFFFFF;
  --c-line:#E5E2DA;
  --c-text:#1A1D21;
  --c-muted:#5B636B;
  --c-invert:#F2F4F5;
  --r-s:8px; --r-m:12px; --r-l:18px; --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,23,26,.06);
  --sh-2:0 8px 24px rgba(20,23,26,.10);
  --sh-3:0 18px 44px rgba(20,23,26,.16);
  --font-num:"Barlow Condensed","Oswald","PingFang SC",sans-serif;
}

/* ============ reset / base ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .18s,background .18s,border-color .18s,transform .18s}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,p{margin:0;font-family:inherit;color:inherit}
h1,h2,h3,h4{letter-spacing:-0.01em;font-weight:800;line-height:1.35}
button{font-family:inherit;font-size:inherit;border:0;background:none;cursor:pointer;color:inherit}
input,textarea,select{font-family:inherit;font-size:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{padding:0 32px}}

/* ============ 侧栏竖导航 ============ */
.side-nav{
  position:fixed;left:0;top:0;bottom:0;width:264px;
  background:var(--c-ink);color:var(--c-invert);
  display:none;flex-direction:column;
  padding:28px 18px 20px;
  overflow-y:auto;z-index:80;
}
.side-nav::-webkit-scrollbar{width:6px}
.side-nav::-webkit-scrollbar-thumb{background:#2C333A;border-radius:6px}
.side-nav::-webkit-scrollbar-track{background:transparent}
@media (min-width:1024px){.side-nav{display:flex}}

.brand{display:flex;align-items:center;gap:10px;padding:0 8px 22px}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;
  background:var(--c-primary);color:#fff;
  display:grid;place-items:center;
  font-family:var(--font-num);font-weight:700;font-size:20px;line-height:1;
  clip-path:polygon(0 0,100% 0,100% 70%,70% 100%,0 100%);
}
.brand-name{font-size:17px;font-weight:800;color:#fff;letter-spacing:-0.01em;line-height:1.2}

.nav-list{display:flex;flex-direction:column;gap:2px;margin-top:4px}
.nav-list a{
  position:relative;display:flex;align-items:center;
  min-height:46px;padding:10px 14px;border-radius:var(--r-s);
  font-size:15px;color:#B9C0C6;
}
.nav-list a::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;
  background:transparent;border-radius:3px;transition:background .18s;
}
.nav-list a:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-list a:hover::before{background:var(--c-primary)}
.nav-list a.active{background:rgba(255,255,255,.08);color:#fff;font-weight:700}
.nav-list a.active::before{background:var(--c-primary)}

.nav-foot{margin-top:auto;padding:18px 12px 4px;border-top:1px solid rgba(255,255,255,.12)}
.nav-foot .tel{font-family:var(--font-num);font-size:17px;font-weight:700;color:#fff;letter-spacing:.02em;line-height:1.3}
.nav-foot .tel-label{font-size:12px;color:var(--c-accent);letter-spacing:.08em;margin-bottom:4px}
.nav-foot .hours{font-size:12px;color:#8A9199;margin-top:6px;line-height:1.6}

/* ============ 移动顶栏 ============ */
.topbar{
  display:flex;align-items:center;justify-content:space-between;
  height:60px;padding:0 14px 0 16px;
  background:#fff;border-bottom:1px solid var(--c-line);
  position:sticky;top:0;z-index:60;
}
.topbar .brand{padding:0}
.topbar .brand-mark{width:30px;height:30px;flex:0 0 30px;font-size:18px}
.topbar .brand-name{color:var(--c-ink);font-size:16px}
@media (min-width:1024px){.topbar{display:none}}

.hamburger{width:44px;height:44px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;border-radius:var(--r-s)}
.hamburger:hover{background:#F1EFEA}
.hamburger span{width:20px;height:2px;background:var(--c-ink);border-radius:2px;transition:background .18s}
.hamburger:hover span{background:var(--c-primary)}

/* ============ 抽屉 ============ */
#mobileNav{background:var(--c-ink);color:#fff;padding:22px 18px 26px;width:86%}
#mobileNav .brand{padding-bottom:20px}
#mobileNav .nav-list a{min-height:48px;font-size:16px;color:#C9D0D6}
#mobileNav .nav-list a.active{color:#fff}
#mobileNav .drawer-foot{margin-top:26px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14)}
@media (min-width:1024px){#mobileNav{display:none}}

/* ============ 布局骨架 ============ */
.off-canvas-content{padding:0}
@media (min-width:1024px){
  .off-canvas-content{margin-left:264px}
}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;background:var(--c-ink);color:#fff}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.40}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(20,23,26,.95) 0%,rgba(20,23,26,.80) 48%,rgba(20,23,26,.46) 100%);
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;
  padding:66px 0 78px;
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:#A9B0B6;margin-bottom:20px}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:#5C646B}
.crumb a:hover{color:#fff}
.hero h1{
  font-size:clamp(28px,4vw,44px);line-height:1.25;font-weight:800;color:#fff;
}
.hero h1 .h1-brand{color:var(--c-accent)}
.hero-sub{font-size:16px;line-height:1.8;color:#C6CCD1;max-width:34em;margin-top:18px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-tags .tag{height:30px;border:1px solid rgba(255,255,255,.28);color:#E4E8EB;background:transparent}
.hero-media{
  position:relative;border-radius:var(--r-l);overflow:hidden;
  aspect-ratio:16/10;border:1px solid rgba(255,255,255,.14);
  background:var(--c-ink-2);
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{
  content:"";position:absolute;right:0;bottom:0;width:74px;height:74px;
  background:var(--c-primary);clip-path:polygon(100% 0,100% 100%,0 100%);
}
@media (max-width:1023px){
  .hero-inner{grid-template-columns:1fr;gap:34px;padding:44px 0 56px}
  .hero-media{order:-1}
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:11px 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;line-height:1.2;white-space:nowrap;
  transition:transform .18s,box-shadow .18s,background .18s,color .18s,border-color .18s;
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-outline{border:1px solid var(--c-second);color:var(--c-second);background:transparent}
.btn-outline:hover{background:var(--c-second);color:#fff}
.btn-ghost{border:1px solid rgba(255,255,255,.35);color:#fff;background:transparent}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08);color:#fff}
.btn-block{width:100%}

/* ============ 标签 ============ */
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:13px;line-height:1;white-space:nowrap;
}
.tag-second{background:rgba(18,121,106,.10);color:var(--c-second);font-weight:700}
.tag-soft{background:#EFEDE7;color:var(--c-muted)}
.tag-solid{background:var(--c-accent);color:#4A3708;font-weight:700}

/* ============ 数据卡 ============ */
.stats-bar{margin-top:-38px;position:relative;z-index:20}
.stats-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-l);
  box-shadow:var(--sh-2);display:grid;grid-template-columns:repeat(4,1fr);overflow:hidden;
}
.stat{padding:26px 22px;border-right:1px solid var(--c-line)}
.stat:last-child{border-right:0}
.stat b{display:block;font-family:var(--font-num);font-size:42px;line-height:1;font-weight:700;color:var(--c-primary)}
.stat span{display:block;font-size:12px;color:var(--c-muted);margin-top:9px;line-height:1.5}
@media (max-width:767px){
  .stats-bar{margin-top:-24px}
  .stats-card{grid-template-columns:repeat(2,1fr)}
  .stat{padding:20px 16px}
  .stat b{font-size:34px}
  .stat:nth-child(2n){border-right:0}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--c-line)}
}

/* ============ 板块通用 ============ */
.section{padding:88px 0}
@media (max-width:1023px){.section{padding:56px 0}}
.section-tight{padding-top:64px}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:36px}
.sec-title{font-size:clamp(24px,2.6vw,32px);line-height:1.35;font-weight:800}
.sec-desc{font-size:15px;color:var(--c-muted);margin-top:12px;max-width:46em;line-height:1.8}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--font-num);font-size:12px;letter-spacing:.16em;
  color:var(--c-second);font-weight:700;margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--c-primary);display:inline-block}
.link-more{font-size:14px;font-weight:700;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px}
.link-more:hover{color:var(--c-primary-d);gap:10px}

/* ============ 筛选条 ============ */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.filter-chip{
  min-height:38px;padding:8px 18px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:#fff;font-size:14px;color:var(--c-text);
  transition:border-color .18s,color .18s,background .18s;
}
.filter-chip:hover{border-color:var(--c-primary);color:var(--c-primary)}
.filter-chip.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:700}

/* ============ 卡片网格 ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
@media (max-width:1199px){.card-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:639px){.card-grid{grid-template-columns:1fr;gap:18px}}

.card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-l);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s,box-shadow .2s,border-color .2s;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D9D5CA}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:#EFEDE7}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.card:hover .card-media img{transform:scale(1.04)}
.card-media .tag-soft{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.92)}
.card-body{padding:20px 20px 18px;display:flex;flex-direction:column;gap:10px;flex:1}
.card h3{font-size:18px;line-height:1.5;font-weight:700}
.card p{font-size:14px;line-height:1.72;color:var(--c-muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--c-muted);
}
.card-foot .arrow{color:var(--c-primary);font-weight:700;transition:transform .18s}
.card:hover .card-foot .arrow{transform:translateX(4px)}

/* ============ 适用场景条目 ============ */
.scene-list{border-top:1px solid var(--c-line)}
.scene-item{
  position:relative;display:grid;grid-template-columns:62px 1fr 300px;gap:26px;align-items:center;
  padding:26px 18px;border-bottom:1px solid var(--c-line);
  transition:background .2s;
}
.scene-item::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:4px;
  background:var(--c-primary);border-radius:2px;transform:scaleY(0);transition:transform .22s;
}
.scene-item:hover{background:#FBFAF7}
.scene-item:hover::before{transform:scaleY(1)}
.scene-num{font-family:var(--font-num);font-size:30px;font-weight:700;line-height:1;color:#C9C6BD;transition:color .2s}
.scene-item:hover .scene-num{color:var(--c-primary)}
.scene-item h3{font-size:19px;font-weight:700;line-height:1.5}
.scene-item p{font-size:14px;line-height:1.78;color:var(--c-muted);margin-top:8px}
.scene-side{display:flex;flex-wrap:wrap;gap:8px;justify-content:flex-end}
@media (max-width:1023px){
  .scene-item{grid-template-columns:44px 1fr;gap:16px;padding:22px 14px}
  .scene-side{grid-column:1/-1;justify-content:flex-start}
}

/* ============ 流程 ============ */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.flow-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-m);padding:24px 20px;transition:box-shadow .2s,transform .2s,border-color .2s}
.flow-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D9D5CA}
.flow-card .n{font-family:var(--font-num);font-size:34px;line-height:1;font-weight:700;color:var(--c-primary)}
.flow-card h3{margin-top:14px;font-size:17px;font-weight:700}
.flow-card p{margin-top:8px;font-size:14px;line-height:1.72;color:var(--c-muted)}
@media (max-width:1023px){.flow-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:575px){.flow-grid{grid-template-columns:1fr}}

/* ============ CTA 横条 ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--c-ink);border-radius:var(--r-l);
  padding:42px 40px;display:flex;align-items:center;justify-content:space-between;
  gap:28px;flex-wrap:wrap;
}
.cta-band::after{
  content:"";position:absolute;right:-30px;top:-70px;width:220px;height:220px;
  background:rgba(240,78,35,.20);clip-path:polygon(100% 0,100% 100%,0 100%);
}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,28px);line-height:1.4;font-weight:800}
.cta-band p{color:#AEB5BB;font-size:14px;margin-top:10px;max-width:46em;line-height:1.8}
@media (max-width:767px){.cta-band{padding:30px 22px}}

/* ============ FAQ（Foundation Accordion 重绘） ============ */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}
@media (max-width:1023px){.faq-grid{grid-template-columns:1fr}}
.accordion{background:transparent;border:0;border-radius:0;margin:0;list-style:none}
.accordion-item{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-m);
  margin-bottom:14px;overflow:hidden;
}
.accordion-title{
  position:relative;display:block;width:100%;
  padding:18px 56px 18px 20px;
  font-size:16px;font-weight:700;line-height:1.6;color:var(--c-text);
  background:#fff;border:0;border-radius:0;
  transition:background .18s,color .18s,box-shadow .18s;
}
.accordion-title:hover{background:#FBFAF7;color:var(--c-primary-d)}
.accordion-title::before{
  content:"+";position:absolute;right:20px;top:50%;left:auto;
  transform:translateY(-50%);float:none;margin:0;
  font-family:var(--font-num);font-size:22px;font-weight:700;line-height:1;
  color:var(--c-primary);
}
.accordion-item.is-active .accordion-title{background:#FBFAF7;box-shadow:inset 4px 0 0 var(--c-primary)}
.accordion-item.is-active .accordion-title::before{content:"—";font-size:18px}
.accordion-content{
  padding:4px 20px 20px;background:#FBFAF7;border:0;
  font-size:15px;line-height:1.85;color:var(--c-muted);
}
.accordion-content p{margin:0}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:#A9B0B6;padding:64px 0 0;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px;padding-bottom:44px}
@media (max-width:1023px){.foot-grid{grid-template-columns:1fr 1fr;gap:30px}}
@media (max-width:575px){.foot-grid{grid-template-columns:1fr}}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.foot-brand .brand-name{font-size:18px}
.foot-col p{font-size:14px;line-height:1.85;color:#8E959C;max-width:32em}
.foot-col h4{color:var(--c-accent);font-size:14px;font-weight:700;margin-bottom:16px;letter-spacing:.02em}
.foot-col ul{display:flex;flex-direction:column;gap:10px}
.foot-col ul li{font-size:14px;color:#9AA1A8;line-height:1.7}
.foot-col ul a{display:inline-block;font-size:14px;color:#A9B0B6}
.foot-col ul a:hover{color:var(--c-invert);transform:translateX(2px)}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:#7C838A;
}
.foot-bottom a{color:#9AA1A8}
.foot-bottom a:hover{color:var(--c-invert)}

/* Foundation 默认外观覆盖 */
.off-canvas-content{background:var(--c-bg)}
.off-canvas{background:var(--c-ink)}
.button{background:var(--c-primary);border-radius:var(--r-pill)}
a.button:hover{background:var(--c-primary-d)}