/* roulang page: index */
:root{
  --c-primary:#E8472B;
  --c-primary-d:#C6351C;
  --c-accent:#0FA98E;
  --c-highlight:#D8F04A;
  --c-ink:#16181C;
  --c-ink-2:#4A5058;
  --c-line:#E4E1DA;
  --c-bg:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-dark:#14161A;
  --c-dark-2:#1E2126;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(20,22,26,.06), 0 8px 24px -12px rgba(20,22,26,.18);
  --sh-2:0 2px 8px rgba(20,22,26,.08), 0 20px 44px -20px rgba(20,22,26,.26);
  --w:1200px;
  --gutter:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink-2);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--c-ink);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--c-primary)}
h1,h2,h3,h4{color:var(--c-ink);margin:0;line-height:1.3;font-weight:700;letter-spacing:.2px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.container{width:100%;max-width:var(--w);margin:0 auto;padding:0 var(--gutter)}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--c-dark);color:#B9BEC6;font-size:13px;line-height:1}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;min-height:36px;gap:16px}
.topbar__left{display:flex;align-items:center;gap:10px;overflow:hidden;white-space:nowrap}
.topbar__dot{width:6px;height:6px;border-radius:50%;background:var(--c-accent);display:inline-block;flex:0 0 auto}
.topbar__right{display:flex;align-items:center;gap:18px}
.topbar a{color:#DDE1E6;font-size:13px}
.topbar a:hover{color:#fff}
.topbar__pill{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);
  color:#fff;border-radius:999px;padding:5px 12px;font-size:12px;
}
.topbar__pill:hover{background:var(--c-primary);border-color:var(--c-primary);color:#fff}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid var(--c-line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;min-height:68px;gap:20px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand__mark{
  width:36px;height:36px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--c-primary),#F2733F);
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:17px;
  box-shadow:0 6px 16px -8px rgba(232,71,43,.9);
}
.brand__text{font-size:17px;font-weight:700;color:var(--c-ink);letter-spacing:.3px}
.main-nav{display:flex;align-items:center}
.nav-list{display:flex;align-items:center;gap:4px}
.nav-link{
  display:inline-block;padding:10px 14px;border-radius:8px;font-size:15px;color:var(--c-ink-2);
  position:relative;transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--c-ink);background:#F2EFE9}
.nav-link.is-active{color:var(--c-ink);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--c-primary);border-radius:2px;
}
.nav-cta{display:flex;align-items:center;gap:10px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);padding:11px 20px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;line-height:1.2;
  transition:transform .18s ease,background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn--primary{background:var(--c-primary);color:#fff;box-shadow:0 10px 22px -14px rgba(232,71,43,1)}
.btn--primary:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-2px)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{background:transparent;border-color:var(--c-line);color:var(--c-ink)}
.btn--ghost:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px)}
.btn--ghost:active{transform:translateY(0)}
.btn--dark{background:var(--c-dark);color:#fff}
.btn--dark:hover{background:var(--c-dark-2);color:#fff;transform:translateY(-2px)}
.btn--sm{padding:8px 14px;font-size:14px}
.btn--block{width:100%}
.button{font-family:inherit}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--c-line);
  background:#fff;color:var(--c-ink);align-items:center;justify-content:center;font-size:17px;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary)}
.drawer{
  display:none;border-top:1px solid var(--c-line);background:#fff;padding:14px 0 20px;
}
.drawer.is-open{display:block}
.drawer__link{
  display:block;padding:12px 4px;border-bottom:1px dashed var(--c-line);
  font-size:15px;color:var(--c-ink);
}
.drawer__link.is-active{color:var(--c-primary);font-weight:600}
.drawer__foot{margin-top:16px;display:flex;flex-direction:column;gap:10px}
.drawer__note{font-size:13px;color:var(--c-ink-2)}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;border-top:1px solid var(--c-line)}
.section--plain{border-top:0}
.section--dark{background:var(--c-dark);border-top:0}
.section--dark .section-title,.section--dark .section-note{color:#fff}
.section--dark .section-note{color:#A9AEB6}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.section-title{font-size:clamp(24px,3vw,34px);line-height:1.28}
.section-note{margin-top:10px;font-size:14px;color:var(--c-ink-2);max-width:640px}
.section-link{
  font-size:14px;font-weight:600;color:var(--c-primary);white-space:nowrap;
  border-bottom:1px solid rgba(232,71,43,.35);padding-bottom:2px;
}
.section-link:hover{color:var(--c-primary-d);border-color:var(--c-primary-d)}
.badge{
  display:inline-flex;align-items:center;gap:6px;border-radius:999px;
  padding:5px 12px;font-size:12px;font-weight:600;letter-spacing:.3px;
  background:#FDEDE8;color:var(--c-primary-d);border:1px solid #F8D9D0;
}
.badge--green{background:#E5F6F2;color:#0B7C69;border-color:#C9EBE3}
.badge--dark{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.18)}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  background-image:linear-gradient(100deg,rgba(20,22,26,.92) 0%,rgba(20,22,26,.80) 46%,rgba(20,22,26,.42) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  color:#fff;
  min-height:560px;
  display:flex;align-items:center;
  padding:76px 0;
}
.hero__grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);gap:48px;align-items:center}
.hero__badge{
  display:inline-flex;align-items:center;gap:8px;border-radius:999px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);
  color:#fff;font-size:13px;padding:6px 14px;
}
.hero h1{
  color:#fff;font-size:clamp(30px,4.2vw,46px);line-height:1.26;margin:20px 0 0;
  letter-spacing:.4px;
}
.hero__sub{color:#D5D8DD;font-size:17px;margin-top:16px;max-width:560px}
.hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero__trust{
  display:flex;flex-wrap:wrap;gap:22px;margin-top:28px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.16);
}
.hero__trust li{display:flex;align-items:center;gap:8px;font-size:13px;color:#C8CCD2}
.hero__trust i{color:var(--c-highlight)}
.hero-card{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);
  border-radius:var(--r-card);padding:24px;backdrop-filter:blur(6px);
  box-shadow:0 30px 60px -30px rgba(0,0,0,.75);
}
.hero-card__title{color:#fff;font-size:15px;font-weight:600;display:flex;align-items:center;gap:8px}
.hero-card__title span{width:8px;height:8px;border-radius:50%;background:var(--c-accent)}
.hero-card__rows{margin-top:18px;display:grid;gap:14px}
.hero-row{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 16px;border-radius:12px;background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.1);
}
.hero-row__num{color:#fff;font-size:22px;font-weight:700}
.hero-row__num em{font-style:normal;font-size:13px;font-weight:500;color:#B4B9C0;margin-left:4px}
.hero-row__label{font-size:13px;color:#B4B9C0;text-align:right}
.hero-card__foot{margin-top:16px;font-size:12px;color:#9AA0A8;line-height:1.7}

/* ---------- 指标看板 ---------- */
.metrics{background:var(--c-surface);border-top:1px solid var(--c-line)}
.metrics__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1fr;gap:18px}
.metric{
  border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px 20px;
  background:var(--c-surface);box-shadow:var(--sh-1);
}
.metric--main{
  background:var(--c-primary);border-color:var(--c-primary);color:#fff;
  box-shadow:0 18px 36px -22px rgba(232,71,43,.95);
}
.metric--main .metric__value,.metric--main .metric__label,.metric--main .metric__hint{color:#fff}
.metric--main .metric__label{opacity:.9}
.metric--main .metric__hint{opacity:.78}
.metric__label{font-size:13px;color:var(--c-ink-2);letter-spacing:.3px}
.metric__value{font-size:34px;font-weight:700;color:var(--c-ink);margin-top:8px;line-height:1.1}
.metric--main .metric__value{font-size:42px}
.metric__value em{font-style:normal;font-size:15px;font-weight:600;margin-left:4px}
.metric__hint{font-size:12px;color:#8C9299;margin-top:8px}

/* ---------- 服务矩阵 ---------- */
.service-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:22px}
.svc{
  grid-column:span 3;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;gap:12px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.svc:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#F3C9BD}
.svc--main{
  grid-column:span 6;grid-row:span 2;padding:0;overflow:hidden;
}
.svc--main .svc__media{position:relative;height:230px;overflow:hidden}
.svc--main .svc__media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.svc--main:hover .svc__media img{transform:scale(1.04)}
.svc--main .svc__media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(20,22,26,0) 40%,rgba(20,22,26,.72) 100%);
}
.svc--main .svc__body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.svc--wide{grid-column:span 6}
.svc__head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.svc__num{
  font-size:13px;font-weight:700;color:var(--c-primary);letter-spacing:1px;
  font-variant-numeric:tabular-nums;
}
.svc__icon{
  width:38px;height:38px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  background:#F3F1EC;color:var(--c-ink);font-size:16px;
}
.svc--main .svc__icon{background:#FDEDE8;color:var(--c-primary)}
.svc__title{font-size:19px;margin:0}
.svc--main .svc__title{font-size:24px}
.svc__desc{font-size:14px;color:var(--c-ink-2);line-height:1.8}
.svc__link{
  margin-top:auto;font-size:14px;font-weight:600;color:var(--c-primary);
  display:inline-flex;align-items:center;gap:6px;
}
.svc__link:hover{color:var(--c-primary-d);gap:10px}
.svc__thumb{border-radius:var(--r-img);overflow:hidden;height:120px}
.svc__thumb img{width:100%;height:100%;object-fit:cover}

/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  overflow:hidden;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#F3C9BD}
.news-card__link{display:flex;flex-direction:column;height:100%;padding:22px;color:inherit}
.news-card__link:hover{color:inherit}
.news-tag{
  align-self:flex-start;border-radius:999px;padding:4px 11px;font-size:12px;font-weight:600;
  background:#EEF7F5;color:#0B7C69;border:1px solid #D6EDE8;margin-bottom:14px;
}
.news-title{
  font-size:17px;line-height:1.55;margin:0 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:hover .news-title{color:var(--c-primary)}
.news-sum{
  font-size:14px;color:var(--c-ink-2);line-height:1.8;margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:14px;border-top:1px solid var(--c-line);font-size:13px;color:#8C9299;
}
.news-more{color:var(--c-primary);font-weight:600}
.empty-state{
  border:1.5px dashed #D7D2C8;border-radius:var(--r-card);padding:48px 24px;
  text-align:center;background:#FCFBF9;
}
.empty-state i{font-size:26px;color:#B6B0A5}
.empty-state p{margin-top:12px;font-size:14px;color:var(--c-ink-2)}
.empty-state a{display:inline-block;margin-top:14px;font-size:14px;font-weight:600;color:var(--c-primary)}

/* ---------- 结果对比 ---------- */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.compare-col{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
}
.compare-head{padding:20px 24px;border-bottom:1px solid var(--c-line);display:flex;align-items:center;justify-content:space-between;gap:12px}
.compare-col--before .compare-head{background:#F4F2EE}
.compare-col--after .compare-head{background:#14161A}
.compare-head h3{font-size:18px}
.compare-col--after .compare-head h3{color:#fff}
.compare-col--after .compare-head .badge{background:rgba(216,240,74,.16);color:var(--c-highlight);border-color:rgba(216,240,74,.3)}
.compare-body{padding:24px;display:flex;flex-direction:column;gap:20px;flex:1}
.bar-row{display:grid;gap:8px}
.bar-row__top{display:flex;align-items:baseline;justify-content:space-between;font-size:13px;color:var(--c-ink-2)}
.bar-row__top b{color:var(--c-ink);font-size:14px;font-variant-numeric:tabular-nums}
.bar{height:8px;border-radius:999px;background:#EDEAE4;overflow:hidden}
.bar__fill{height:100%;border-radius:999px;background:var(--c-primary)}
.bar__fill--muted{background:#C4C0B8}
.bar__fill--accent{background:var(--c-accent)}
.check-list{display:grid;gap:12px}
.check-list li{display:flex;gap:10px;font-size:14px;line-height:1.7;color:var(--c-ink-2)}
.check-list i{flex:0 0 auto;margin-top:5px;font-size:13px}
.check-list .ok{color:var(--c-accent)}
.check-list .no{color:#B4AFA6}
.compare-conclusion{
  margin-top:auto;font-size:14px;font-weight:600;color:var(--c-ink);
  border-left:3px solid var(--c-primary);padding-left:12px;
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto}
.accordion{background:transparent;border:0;margin:0}
.accordion-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  margin-bottom:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.accordion-item:hover{border-color:#DAD4C9}
.accordion-title{
  border:0;padding:18px 56px 18px 20px;font-size:17px;font-weight:600;color:var(--c-ink);
  line-height:1.6;transition:background .2s ease,color .2s ease;
}
.accordion-title:hover{background:#FCFBF9;color:var(--c-primary)}
.accordion-title::before{
  right:22px;top:50%;margin-top:-12px;font-size:20px;font-weight:400;color:var(--c-primary);
}
.accordion-content{
  border:0;border-top:1px solid var(--c-line);background:#FBFAF8;
  padding:18px 22px 22px;font-size:15px;line-height:1.85;color:var(--c-ink-2);
}
.accordion-item.is-active{border-color:#E9C6BB;border-left:3px solid var(--c-primary);box-shadow:var(--sh-1)}

/* ---------- 表单 ---------- */
.form-grid{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:32px;align-items:start}
.form-side h2{font-size:clamp(24px,3vw,34px);line-height:1.3}
.form-side p{margin-top:14px;font-size:15px;color:var(--c-ink-2)}
.form-points{margin-top:24px;display:grid;gap:14px}
.form-points li{display:flex;gap:12px;font-size:14px;line-height:1.75}
.form-points i{flex:0 0 auto;margin-top:4px;color:var(--c-primary)}
.form-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-1);
}
.field{display:grid;gap:8px;margin-bottom:16px}
.field label{font-size:13px;font-weight:600;color:var(--c-ink)}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--c-line);border-radius:var(--r-btn);
  padding:0 14px;height:48px;background:#FDFCFA;color:var(--c-ink);
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.field textarea{height:auto;padding:12px 14px;min-height:110px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);background:#fff;
  box-shadow:0 0 0 3px rgba(232,71,43,.13);
}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-privacy{margin-top:14px;font-size:12px;color:#8C9299;line-height:1.7}
.form-tip{
  display:none;margin-top:14px;font-size:13px;color:#0B7C69;background:#EEF7F5;
  border:1px solid #D6EDE8;border-radius:10px;padding:10px 14px;
}
.form-tip.is-show{display:block}

/* ---------- CTA 带 ---------- */
.cta-band{
  background-image:linear-gradient(100deg,rgba(20,22,26,.94) 0%,rgba(20,22,26,.82) 55%,rgba(20,22,26,.6) 100%),url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;color:#fff;
}
.cta-band__inner{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  padding:56px 0;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px)}
.cta-band p{color:#C6CAD1;font-size:15px;margin-top:10px;max-width:620px}
.cta-band__actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-dark);color:#9AA0A8;padding:64px 0 0;font-size:14px;border-top:1px solid #24272D}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand__mark{width:34px;height:34px;font-size:16px}
.footer-brand strong{color:#fff;font-size:17px;letter-spacing:.3px}
.footer-desc{line-height:1.9;max-width:320px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col li{margin-bottom:10px;line-height:1.7}
.footer-col a{color:#9AA0A8;font-size:14px}
.footer-col a:hover{color:#fff}
.footer-contact li{display:flex;gap:10px;align-items:flex-start}
.footer-contact i{color:var(--c-primary);margin-top:5px}
.footer-bottom{
  margin-top:52px;border-top:1px solid #24272D;padding:20px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7C828A;
}
.footer-bottom a{color:#9AA0A8}
.footer-bottom a:hover{color:#fff}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1199px){
  .hero__grid{gap:36px}
  .svc--main{grid-column:span 12;grid-row:auto}
  .svc{grid-column:span 6}
  .svc--wide{grid-column:span 12}
  .metrics__grid{grid-template-columns:repeat(3,1fr)}
  .metric--main{grid-column:span 3}
}
@media screen and (max-width:991px){
  :root{--gutter:20px}
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .nav-cta .btn{display:none}
  .section{padding:68px 0}
  .hero{min-height:auto;padding:60px 0}
  .hero__grid{grid-template-columns:1fr}
  .hero__trust{gap:16px}
  .metrics__grid{grid-template-columns:repeat(2,1fr)}
  .metric--main{grid-column:span 2}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .compare-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-band__inner{flex-direction:column;align-items:flex-start;padding:48px 0}
}
@media screen and (max-width:767px){
  .topbar__right a:not(.topbar__pill){display:none}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;margin-bottom:28px}
  .svc{grid-column:span 12}
  .svc--main{grid-column:span 12}
  .svc--wide{grid-column:span 12}
  .news-grid{grid-template-columns:1fr}
  .field-row{grid-template-columns:1fr}
  .form-card{padding:22px}
  .hero-card{padding:20px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media screen and (max-width:519px){
  :root{--gutter:16px}
  .brand__text{font-size:15px}
  .hero h1{font-size:28px}
  .hero__actions .btn{width:100%}
  .metrics__grid{grid-template-columns:1fr}
  .metric--main{grid-column:span 1}
  .metric__value{font-size:28px}
  .metric--main .metric__value{font-size:34px}
  .accordion-title{font-size:16px;padding:16px 48px 16px 16px}
}

/* roulang page: article */
:root{
  --c-primary:#E8472B;
  --c-primary-d:#C6351C;
  --c-accent:#0FA98E;
  --c-highlight:#D8F04A;
  --c-ink:#16181C;
  --c-ink-2:#4A5058;
  --c-ink-3:#7B838C;
  --c-line:#E4E1DA;
  --c-bg:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-dark:#14161A;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --sh-card:0 1px 2px rgba(20,22,26,.06),0 8px 24px -12px rgba(20,22,26,.18);
  --sh-hover:0 2px 4px rgba(20,22,26,.07),0 18px 38px -18px rgba(20,22,26,.28);
  --sp-section:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:"PingFang SC","HarmonyOS Sans","Hiragino Sans GB","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;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px
}
button{font-family:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;color:var(--c-ink);letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:transform .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease,box-shadow .18s ease;
}
.btn--primary{background:var(--c-primary);color:#fff;box-shadow:0 10px 22px -12px rgba(232,71,43,.75)}
.btn--primary:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-2px)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{background:transparent;border-color:var(--c-line);color:var(--c-ink)}
.btn--ghost:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px)}
.btn--sm{height:34px;padding:0 16px;font-size:13px;border-radius:999px}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  background:rgba(232,71,43,.1);color:var(--c-primary);font-size:13px;font-weight:600;line-height:1
}
.badge--accent{background:rgba(15,169,142,.12);color:#0B8672}
.badge--dark{background:rgba(255,255,255,.14);color:#fff}
.tlink{color:var(--c-primary);font-weight:600;font-size:14px}
.tlink:hover{color:var(--c-primary-d);text-decoration:underline;text-underline-offset:4px}

/* 顶部信息条 */
.topbar{background:var(--c-dark);color:rgba(255,255,255,.72);font-size:13px;line-height:36px}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px}
.topbar__left{display:flex;align-items:center;gap:10px;white-space:nowrap}
.topbar__left i{color:var(--c-highlight);font-size:12px}
.topbar__right{display:flex;align-items:center;gap:14px}
.topbar__right a{color:#fff;display:inline-flex;align-items:center;gap:6px}
.topbar__right a:hover{color:var(--c-highlight)}

/* 主导航 */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);border-bottom:1px solid var(--c-line);backdrop-filter:saturate(180%) blur(8px)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:70px}
.brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;letter-spacing:-.02em;color:var(--c-ink)}
.brand__mark{
  width:34px;height:34px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--c-primary),#F27A45);color:#fff;font-size:15px;
  box-shadow:0 8px 18px -10px rgba(232,71,43,.9)
}
.main-nav .nav-list{display:flex;align-items:center;gap:6px}
.nav-link{
  display:inline-block;padding:24px 14px;font-size:15px;color:var(--c-ink-2);font-weight:500;
  border-bottom:2px solid transparent
}
.nav-link:hover{color:var(--c-primary)}
.nav-link.is-active{color:var(--c-ink);font-weight:700;border-bottom-color:var(--c-primary)}
.nav-cta{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);background:#fff;
  color:var(--c-ink);font-size:17px
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary)}
.drawer{display:none;border-top:1px solid var(--c-line);background:#fff;padding:12px 0 20px}
.drawer.is-open{display:block}
.drawer a{display:block;padding:12px 0;font-size:15px;color:var(--c-ink-2);border-bottom:1px dashed var(--c-line)}
.drawer a:hover{color:var(--c-primary)}
.drawer .btn{width:100%;margin-top:16px}

/* 文章首屏 */
.article-hero{
  position:relative;color:#fff;padding:56px 0 64px;
  background-image:linear-gradient(120deg,rgba(20,22,26,.92) 0%,rgba(20,22,26,.78) 55%,rgba(20,22,26,.6) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.68);margin-bottom:22px}
.crumb a{color:rgba(255,255,255,.86)}
.crumb a:hover{color:var(--c-highlight)}
.crumb i{font-size:10px;opacity:.6}
.crumb__current{color:rgba(255,255,255,.6);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-hero__top{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:18px}
.article-hero h1{
  color:#fff;font-size:clamp(28px,4vw,42px);line-height:1.28;max-width:880px;letter-spacing:-.02em
}
.article-hero__sub{
  margin-top:16px;max-width:720px;font-size:16px;color:rgba(255,255,255,.76);line-height:1.85
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;margin-top:26px;
  font-size:14px;color:rgba(255,255,255,.72)
}
.meta-row span{display:inline-flex;align-items:center;gap:8px}
.meta-row i{color:var(--c-highlight);font-size:13px}

/* 正文布局 */
.article-section{padding:56px 0 72px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:56px;align-items:start}
.article-main{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-card);padding:44px 48px}
.article-body{max-width:820px;font-size:16px;line-height:1.92;color:var(--c-ink-2)}
.article-body h2{
  font-size:clamp(21px,2.2vw,24px);margin:34px 0 14px;color:var(--c-ink);position:relative;padding-left:14px
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:1.05em;border-radius:2px;background:var(--c-primary)
}
.article-body h3{font-size:18px;margin:26px 0 10px;color:var(--c-ink)}
.article-body h2:first-child,.article-body h3:first-child{margin-top:0}
.article-body p{margin:0 0 1.1em}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:2px}
.article-body ul li{position:relative;padding-left:24px;margin-bottom:10px}
.article-body ul li::before{
  content:"";position:absolute;left:6px;top:.72em;width:7px;height:7px;border-radius:2px;background:var(--c-accent)
}
.article-body ol{counter-reset:li;padding-left:0}
.article-body ol li{position:relative;padding-left:36px;margin-bottom:10px;counter-increment:li}
.article-body ol li::before{
  content:counter(li);position:absolute;left:0;top:.18em;width:22px;height:22px;border-radius:7px;
  background:rgba(232,71,43,.1);color:var(--c-primary);font-size:13px;font-weight:700;
  display:flex;align-items:center;justify-content:center;line-height:1
}
.article-body blockquote{
  margin:22px 0;padding:16px 20px;background:#FBFAF7;border-left:3px solid var(--c-primary);
  border-radius:0 var(--r-img) var(--r-img) 0;color:var(--c-ink-2);font-size:15.5px
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:22px 0 10px}
.article-body figure{margin:0 0 22px}
.article-body figcaption{font-size:13px;color:var(--c-ink-3);text-align:center;margin-top:8px}
.article-body a{color:var(--c-primary);font-weight:600}
.article-body a:hover{color:var(--c-primary-d);text-decoration:underline;text-underline-offset:4px}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:10px 14px;text-align:left}
.article-body th{background:#FBFAF7;color:var(--c-ink);font-weight:600}
.article-body tr:nth-child(even) td{background:#FCFBF9}
.article-body strong{color:var(--c-ink)}
.article-body hr{border:none;border-top:1px solid var(--c-line);margin:32px 0}

/* 空态 */
.empty-state{
  border:1px dashed var(--c-line);border-radius:var(--r-card);background:#FBFAF7;
  padding:56px 28px;text-align:center;color:var(--c-ink-2)
}
.empty-state i{font-size:30px;color:var(--c-ink-3);margin-bottom:14px;display:block}
.empty-state h3{font-size:19px;margin-bottom:8px}
.empty-state p{font-size:14.5px;margin-bottom:20px}

/* 侧栏 */
.side{position:sticky;top:96px;display:flex;flex-direction:column;gap:22px}
.side-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-card);padding:22px 22px 24px}
.side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:9px}
.side-card h3 i{color:var(--c-primary);font-size:14px}
.side-list li+li{border-top:1px solid var(--c-line)}
.side-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 0;font-size:14.5px;color:var(--c-ink-2)}
.side-list a:hover{color:var(--c-primary)}
.side-list i{font-size:11px;color:var(--c-ink-3)}
.side-note{font-size:13.5px;color:var(--c-ink-3);line-height:1.8;margin-top:12px}
.side-cta{background:var(--c-dark);color:#fff;border-color:transparent}
.side-cta h3{color:#fff}
.side-cta p{font-size:14px;color:rgba(255,255,255,.72);margin-bottom:16px}
.side-points li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.82);margin-bottom:10px}
.side-points i{color:var(--c-highlight);margin-top:6px;font-size:12px}

/* 相关推荐 */
.related{padding:8px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.section-head h2{font-size:clamp(22px,2.6vw,28px)}
.section-head .kicker{display:block;font-size:13px;color:var(--c-ink-3);font-weight:600;letter-spacing:.06em;margin-bottom:8px}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease
}
.card:hover{transform:translateY(-2px);border-color:rgba(232,71,43,.4);box-shadow:var(--sh-hover)}
.card__media{position:relative}
.card__media img{width:100%;height:180px;object-fit:cover;border-radius:0}
.card__media .badge{position:absolute;left:14px;top:14px;background:rgba(20,22,26,.82);color:#fff}
.card__body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card__body h3{font-size:17.5px;line-height:1.5}
.card__body p{font-size:14.5px;color:var(--c-ink-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-ink-3)}

/* 底部转化条 */
.cta-band{background:var(--c-dark);color:#fff;padding:56px 0;margin-top:72px}
.cta-band__inner{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-band h2{color:#fff;font-size:clamp(21px,2.4vw,27px);margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.72);font-size:15px;max-width:620px}
.cta-band__actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-band .btn--ghost{border-color:rgba(255,255,255,.35);color:#fff}
.cta-band .btn--ghost:hover{border-color:var(--c-highlight);color:var(--c-highlight)}

/* 页脚 */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.68);padding:56px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:16px;margin-bottom:14px}
.footer-brand .brand__mark{width:30px;height:30px;font-size:13px}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);max-width:340px}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.footer-col ul li{margin-bottom:9px}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.68);line-height:1.9}
.footer-col ul a:hover{color:var(--c-highlight)}
.footer-contact li{display:flex;gap:10px;font-size:14px;line-height:1.8;margin-bottom:10px}
.footer-contact i{color:var(--c-primary);margin-top:6px;font-size:13px}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;padding-top:20px;font-size:13px;color:rgba(255,255,255,.5)}

@media screen and (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .side{position:static;flex-direction:row;flex-wrap:wrap}
  .side-card{flex:1 1 280px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
}
@media screen and (max-width:991px){
  :root{--sp-section:64px}
  .main-nav{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .nav-cta .btn{display:none}
  .article-main{padding:32px 28px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media screen and (max-width:767px){
  .container{padding:0 20px}
  .topbar__left span{display:none}
  .article-hero{padding:40px 0 48px}
  .article-section{padding:40px 0 56px}
  .article-main{padding:26px 20px}
  .article-body{font-size:15.5px}
  .card-grid{grid-template-columns:1fr}
  .cta-band__inner{flex-direction:column;align-items:flex-start}
  .side{flex-direction:column}
}
@media screen and (max-width:480px){
  .container{padding:0 16px}
  .brand{font-size:15.5px}
  .meta-row{gap:8px 16px;font-size:13px}
  .btn{width:100%}
  .btn--sm{width:auto}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category1 */
:root{
  --c-primary:#E8472B;
  --c-primary-d:#C6351C;
  --c-accent:#0FA98E;
  --c-highlight:#D8F04A;
  --c-ink:#16181C;
  --c-ink-2:#4A5058;
  --c-ink-3:#6B7178;
  --c-line:#E4E1DA;
  --c-bg:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-dark:#14161A;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-card:0 1px 2px rgba(20,22,26,.06),0 8px 24px -12px rgba(20,22,26,.18);
  --shadow-hover:0 2px 4px rgba(20,22,26,.08),0 16px 32px -14px rgba(20,22,26,.24);
  --container:1200px;
  --gutter:24px;
  --section-y:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink-2);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;line-height:1.3}
p{margin:0}
img{display:block;max-width:100%;border-radius:var(--radius-img)}
a{color:var(--c-ink);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--c-primary)}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 var(--gutter)}

/* 顶部信息条 */
.topbar{background:var(--c-dark);color:#C9CDD4;font-size:13px;line-height:1.5}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:6px;padding-bottom:6px;min-height:36px}
.topbar__domain{display:flex;align-items:center;gap:8px}
.topbar__domain i{color:var(--c-highlight)}
.topbar__actions{display:flex;align-items:center;gap:14px}
.topbar__note{color:#8B9199}
.topbar__btn{display:inline-flex;align-items:center;padding:3px 12px;border-radius:999px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);color:#fff;font-size:12.5px;line-height:1.6}
.topbar__btn:hover{background:var(--c-primary);border-color:var(--c-primary);color:#fff}

/* 主导航 */
.site-header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.97);border-bottom:1px solid var(--c-line);backdrop-filter:blur(8px)}
.header-inner{display:flex;align-items:center;gap:20px;min-height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand__mark{width:34px;height:34px;border-radius:10px;background:var(--c-primary);color:#fff;display:grid;place-items:center;font-size:15px;flex:0 0 auto}
.brand__text{font-size:17px;font-weight:700;color:var(--c-ink);letter-spacing:.2px;white-space:nowrap}
.brand:hover .brand__text{color:var(--c-primary)}
.main-nav{flex:1 1 auto;display:flex;justify-content:center}
.nav-list{display:flex;align-items:center;gap:4px}
.nav-link{position:relative;display:inline-block;padding:10px 12px;border-radius:9px;font-size:15px;color:var(--c-ink-2);white-space:nowrap}
.nav-link:hover{color:var(--c-primary);background:rgba(232,71,43,.06)}
.nav-link.is-active{color:var(--c-ink);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--c-primary)}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;padding:0 11px;border:1px solid var(--c-line);border-radius:10px;background:#fff}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--c-ink);transition:background .18s ease}
.nav-toggle:hover{border-color:var(--c-primary)}
.nav-toggle:hover span{background:var(--c-primary)}

/* 移动抽屉 */
.drawer-overlay{position:fixed;inset:0;background:rgba(20,22,26,.52);z-index:70;opacity:0;pointer-events:none;transition:opacity .26s ease}
.drawer-overlay.is-open{opacity:1;pointer-events:auto}
.mobile-drawer{position:fixed;top:0;right:0;bottom:0;width:min(88vw,340px);z-index:80;display:flex;flex-direction:column;gap:18px;padding:20px;background:#fff;box-shadow:-12px 0 40px -20px rgba(20,22,26,.45);transform:translateX(102%);transition:transform .26s ease;overflow-y:auto}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--c-line)}
.drawer-close{width:36px;height:36px;border:1px solid var(--c-line);border-radius:9px;background:#fff;color:var(--c-ink)}
.drawer-close:hover{border-color:var(--c-primary);color:var(--c-primary)}
.drawer-nav{display:grid;gap:6px}
.drawer-nav a{display:block;padding:12px;border-radius:10px;font-size:15px;color:var(--c-ink-2)}
.drawer-nav a:hover{background:rgba(232,71,43,.07);color:var(--c-primary)}
.drawer-nav a.is-active{background:rgba(232,71,43,.1);color:var(--c-primary);font-weight:600}
.drawer-contact{margin-top:auto;font-size:13px;color:#8B9199}

/* 按钮与标签 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 22px;border:1px solid transparent;border-radius:var(--radius-btn);font-size:15px;font-weight:600;text-align:center;transition:transform .18s ease,background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease}
.btn--primary{background:var(--c-primary);color:#fff;box-shadow:0 10px 24px -12px rgba(232,71,43,.75)}
.btn--primary:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-2px)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{background:transparent;border-color:var(--c-line);color:var(--c-ink)}
.btn--ghost:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px)}
.btn--light{background:#fff;color:var(--c-ink);border-color:#fff}
.btn--light:hover{background:var(--c-highlight);border-color:var(--c-highlight);color:var(--c-ink);transform:translateY(-2px)}
.btn--sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px}
.btn--block{width:100%}
.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;background:rgba(15,169,142,.13);color:#0B7A67;font-size:12.5px;font-weight:600;letter-spacing:.4px}
.tag{display:inline-block;padding:4px 11px;border:1px solid var(--c-line);border-radius:999px;background:#fff;font-size:12.5px;color:#5A6068}

/* 面包屑与首屏 */
.cat-hero{position:relative;padding:44px 0 68px;border-bottom:1px solid var(--c-line);background:linear-gradient(180deg,rgba(247,245,241,.94),rgba(247,245,241,.99)),url('/assets/images/backpic/back-1.png') center/cover no-repeat}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin-bottom:26px;font-size:13px;color:#8B9199}
.breadcrumb a{color:#8B9199}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .current{color:var(--c-ink-2)}
.cat-hero h1{margin:14px 0 16px;font-size:clamp(30px,4.2vw,44px);line-height:1.28;letter-spacing:-.3px}
.cat-hero__lead{max-width:640px;font-size:16.5px;line-height:1.9;color:var(--c-ink-2)}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin:22px 0 26px}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-ink)}
.hero-points i{color:var(--c-accent)}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px}
.hero-media{position:relative;margin-top:28px;overflow:hidden;border:1px solid var(--c-line);border-radius:var(--radius-card);box-shadow:var(--shadow-card)}
.hero-media img{width:100%;height:330px;border-radius:0;object-fit:cover}
.hero-media::after{content:"";position:absolute;left:0;right:0;bottom:0;height:48%;z-index:1;background:linear-gradient(180deg,rgba(20,22,26,0) 0%,rgba(20,22,26,.74) 100%);pointer-events:none}
.hero-media figcaption{position:absolute;left:18px;right:18px;bottom:16px;z-index:2;color:#fff;font-size:13.5px;line-height:1.7}
.hero-media figcaption strong{display:block;font-size:15px;margin-bottom:2px}

/* 通用板块 */
.section{padding:var(--section-y) 0}
.section + .section{border-top:1px solid var(--c-line)}
.section--plain{border-top:0}
.section-head{max-width:760px;margin-bottom:34px}
.section-title{font-size:clamp(24px,3vw,32px);letter-spacing:-.2px}
.section-sub{margin-top:10px;font-size:15px;line-height:1.8;color:var(--c-ink-3)}

/* 指标条 */
.metric-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr 1fr;gap:16px}
.metric-item{display:flex;flex-direction:column;gap:6px;padding:24px 20px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-card);box-shadow:var(--shadow-card);transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}
.metric-item:hover{transform:translateY(-2px);border-color:rgba(232,71,43,.42);box-shadow:var(--shadow-hover)}
.metric-item--lead{background:var(--c-dark);border-color:var(--c-dark)}
.metric-value{font-size:clamp(26px,3.2vw,38px);font-weight:800;line-height:1.1;letter-spacing:-.5px;color:var(--c-ink)}
.metric-value small{margin-left:4px;font-size:14px;font-weight:600;color:var(--c-primary)}
.metric-item--lead .metric-value{color:#fff}
.metric-item--lead .metric-value small{color:var(--c-highlight)}
.metric-label{font-size:13.5px;line-height:1.7;color:var(--c-ink-3)}
.metric-item--lead .metric-label{color:#B7BCC4}

/* 横向列表行 */
.row-list{border-top:1px solid var(--c-line)}
.row-item{display:grid;grid-template-columns:96px minmax(0,1fr) auto;gap:24px;align-items:start;padding:28px 16px 28px 0;border-bottom:1px solid var(--c-line);transition:background .18s ease,padding .18s ease}
.row-item:hover{background:rgba(255,255,255,.78);padding-left:14px}
.row-item__index{padding-top:2px;font-size:30px;font-weight:800;line-height:1;letter-spacing:-1px;color:var(--c-primary)}
.row-item__body h3{font-size:20px;margin-bottom:10px}
.row-item__body p{max-width:760px;font-size:15px;line-height:1.85;color:#5A6068}
.row-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.row-link{display:inline-flex;align-items:center;gap:6px;padding-top:6px;font-size:14px;font-weight:600;color:var(--c-ink);white-space:nowrap}
.row-link i{font-size:12px;transition:transform .18s ease}
.row-link:hover{color:var(--c-primary)}
.row-link:hover i{transform:translateX(3px)}

/* 深色说明带 */
.note-band{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;padding:44px;background:var(--c-dark);border-radius:18px}
.note-band h2{font-size:clamp(22px,2.6vw,30px);color:#fff;margin-bottom:14px}
.note-band p{font-size:15px;line-height:1.9;color:#A9AFB8}
.note-list{display:grid;gap:12px;margin-top:22px}
.note-list li{display:flex;gap:10px;font-size:14.5px;line-height:1.8;color:#D5D9DE}
.note-list i{margin-top:6px;color:var(--c-highlight)}
.note-band figure{margin:0}
.note-band img{width:100%;height:270px;object-fit:cover;border-radius:var(--radius-card)}

/* FAQ */
.faq-wrap{max-width:880px}
.accordion.faq{margin:0;background:transparent;border:0}
.faq .accordion-item{margin-bottom:12px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:12px;overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease}
.faq .accordion-item:hover{border-color:rgba(232,71,43,.4)}
.faq .accordion-item.is-active{border-color:rgba(232,71,43,.5);box-shadow:var(--shadow-card)}
.faq .accordion-title{position:relative;display:block;padding:18px 54px 18px 20px;border:0;background:transparent;font-size:17px;font-weight:600;line-height:1.6;color:var(--c-ink)}
.faq .accordion-title:hover,.faq .accordion-title:focus{background:rgba(232,71,43,.04)}
.faq .accordion-item.is-active .accordion-title{color:var(--c-primary)}
.faq .accordion-title::before{content:"+";position:absolute;right:20px;top:50%;margin:0;width:auto;height:auto;transform:translateY(-50%);font-size:20px;line-height:1;color:var(--c-primary)}
.faq .accordion-item.is-active .accordion-title::before{content:"–"}
.faq .accordion-content{padding:0 22px 20px 22px;border:0;border-left:3px solid var(--c-primary);background:#FBFAF8;font-size:15px;line-height:1.85;color:#5A6068}

/* CTA */
.cta-band{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;padding:44px;background:var(--c-primary);border-radius:20px;box-shadow:0 24px 48px -28px rgba(232,71,43,.9)}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);color:#fff;margin-bottom:10px}
.cta-band p{max-width:640px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.9)}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* 页脚 */
.site-footer{margin-top:0;padding:56px 0 26px;background:var(--c-dark);color:#A9AFB8}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;font-size:17px;color:#fff}
.footer-brand .brand__mark{width:30px;height:30px;font-size:13px}
.footer-desc{max-width:320px;font-size:14px;line-height:1.9;color:#8B9199}
.footer-col h4{margin-bottom:16px;font-size:15px;font-weight:600;color:#fff}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:#A9AFB8}
.footer-col a:hover{color:var(--c-primary)}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;line-height:1.8;color:#A9AFB8}
.footer-contact i{margin-top:6px;color:var(--c-accent)}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);font-size:13px;color:#7E848C}

/* 响应式 */
@media (max-width:1199px){
  .metric-grid{grid-template-columns:repeat(3,1fr)}
  .metric-item--lead{grid-column:span 3}
  .note-band{grid-template-columns:1fr;gap:28px;padding:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:991px){
  .main-nav{display:none}
  .nav-toggle{display:flex}
  .header-actions .btn--primary{display:none}
  .cat-hero{padding:32px 0 48px}
  .cat-hero__lead{font-size:16px}
  .hero-media{margin-top:24px}
  .hero-media img{height:270px}
  .row-item{grid-template-columns:64px minmax(0,1fr);gap:18px;padding-right:0}
  .row-link{grid-column:2;padding-top:0}
  .section{padding:64px 0}
}
@media (max-width:767px){
  .topbar__note{display:none}
  .metric-grid{grid-template-columns:1fr 1fr}
  .metric-item--lead{grid-column:span 2}
  .section{padding:52px 0}
  .row-item{grid-template-columns:1fr;gap:12px}
  .row-item__index{font-size:24px}
  .row-link{grid-column:1}
  .footer-grid{grid-template-columns:1fr}
  .note-band{padding:26px}
  .note-band img{height:220px}
  .cta-band{padding:28px;border-radius:16px}
}
@media (max-width:520px){
  :root{--gutter:16px}
  .metric-grid{grid-template-columns:1fr}
  .metric-item--lead{grid-column:span 1}
  .cat-hero h1{font-size:27px}
  .hero-cta .btn,.cta-actions .btn{width:100%}
  .hero-media img{height:220px}
  .faq .accordion-title{font-size:16px;padding-right:48px}
}

/* roulang page: category2 */
:root{
  --c-primary:#E8472B;
  --c-primary-d:#C6351C;
  --c-primary-soft:rgba(232,71,43,.08);
  --c-accent:#0FA98E;
  --c-highlight:#D8F04A;
  --c-ink:#16181C;
  --c-ink-2:#4A5058;
  --c-ink-3:#7B828C;
  --c-line:#E4E1DA;
  --c-bg:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-dark:#14161A;
  --c-dark-2:#1E2128;
  --radius-s:10px;
  --radius:14px;
  --radius-img:12px;
  --shadow-s:0 1px 2px rgba(20,22,26,.06);
  --shadow:0 1px 2px rgba(20,22,26,.06), 0 8px 24px -12px rgba(20,22,26,.18);
  --shadow-l:0 2px 4px rgba(20,22,26,.06), 0 18px 44px -22px rgba(20,22,26,.30);
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink-2);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:var(--c-ink);text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease;}
a:hover{color:var(--c-primary);}
h1,h2,h3,h4{color:var(--c-ink);font-family:var(--font-cn);margin:0;line-height:1.3;font-weight:700;letter-spacing:.01em;}
h1{font-size:clamp(28px,3.8vw,44px);}
h2{font-size:clamp(23px,2.8vw,32px);}
h3{font-size:20px;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
: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:1400px){.container{max-width:1280px;}}
.grid-container{padding-left:24px;padding-right:24px;max-width:1200px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--c-dark);color:#B9BFC9;font-size:13px;min-height:38px;display:flex;align-items:center;}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;flex-wrap:wrap;padding:6px 0;}
.topbar__domain{display:inline-flex;align-items:center;gap:8px;color:#E9EBEF;letter-spacing:.02em;}
.topbar__domain i{color:var(--c-primary);}
.topbar__actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
.topbar__actions a{color:#C9CDD4;font-size:13px;}
.topbar__actions a:hover{color:#fff;}
.topbar__pill{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;background:var(--c-primary);color:#fff;font-size:12px;font-weight:600;}
.topbar__pill:hover{background:var(--c-primary-d);color:#fff;}

/* ---------- 主导航 ---------- */
.site-header{background:var(--c-surface);border-bottom:1px solid var(--c-line);position:sticky;top:0;z-index:60;box-shadow:0 1px 0 rgba(20,22,26,.02);}
.header__inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:70px;}
.brand{display:flex;align-items:center;gap:11px;}
.brand__mark{width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,var(--c-primary) 0%,#F4713F 100%);display:inline-flex;align-items:center;justify-content:center;color:#fff;font-size:17px;box-shadow:0 6px 16px -8px rgba(232,71,43,.85);}
.brand__text{display:flex;flex-direction:column;line-height:1.2;}
.brand__text strong{font-size:17px;color:var(--c-ink);font-weight:700;letter-spacing:.01em;}
.brand__text small{font-size:12px;color:var(--c-ink-3);font-weight:400;letter-spacing:.06em;}
.main-nav{flex:1 1 auto;display:flex;justify-content:center;}
.nav-list{display:flex;align-items:center;gap:4px;}
.nav-link{display:block;padding:10px 13px;font-size:15px;color:var(--c-ink-2);border-radius:8px;border-bottom:2px solid transparent;white-space:nowrap;}
.nav-link:hover{color:var(--c-primary);background:var(--c-primary-soft);}
.nav-link.is-active{color:var(--c-ink);font-weight:600;border-bottom-color:var(--c-primary);}
.header__cta{display:flex;align-items:center;gap:10px;}
.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-ink);font-size:17px;cursor:pointer;align-items:center;justify-content:center;}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);}
.mobile-drawer{display:none;border-top:1px solid var(--c-line);background:var(--c-surface);padding:12px 0 20px;}
.mobile-drawer ul{display:flex;flex-direction:column;gap:2px;}
.mobile-drawer .nav-link{padding:13px 0;border-bottom:1px solid var(--c-line);border-radius:0;}
.mobile-drawer .nav-link.is-active{border-bottom-color:var(--c-primary);}
.drawer-actions{display:flex;flex-direction:column;gap:10px;margin-top:18px;}
body.drawer-open .mobile-drawer{display:block;}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:var(--radius-s);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease,box-shadow .18s ease;}
.btn--primary{background:var(--c-primary);color:#fff;box-shadow:0 10px 24px -14px rgba(232,71,43,.95);}
.btn--primary:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-2px);}
.btn--primary:active{transform:none;}
.btn--ghost{background:transparent;border-color:var(--c-line);color:var(--c-ink);}
.btn--ghost:hover{border-color:var(--c-primary);color:var(--c-primary);}
.btn--light{background:#fff;color:var(--c-ink);}
.btn--light:hover{background:#F1EFEA;color:var(--c-primary);transform:translateY(-2px);}
.btn--outline-light{background:transparent;border-color:rgba(255,255,255,.45);color:#fff;}
.btn--outline-light:hover{border-color:#fff;background:rgba(255,255,255,.10);color:#fff;transform:translateY(-2px);}
.btn--block{width:100%;}

/* ---------- 分类页 Hero ---------- */
.cat-hero{position:relative;overflow:hidden;background-image:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;min-height:420px;display:flex;align-items:center;}
.cat-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(20,22,26,.94) 0%,rgba(20,22,26,.78) 48%,rgba(20,22,26,.36) 100%);}
.cat-hero__inner{position:relative;z-index:2;color:#fff;padding:62px 0 58px;max-width:760px;}
.breadcrumb{display:flex;align-items:center;gap:9px;font-size:13px;color:rgba(255,255,255,.66);margin-bottom:20px;flex-wrap:wrap;}
.breadcrumb a{color:rgba(255,255,255,.82);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb span.sep{opacity:.5;}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(232,71,43,.18);border:1px solid rgba(232,71,43,.5);color:#fff;font-size:13px;font-weight:600;margin-bottom:20px;}
.hero-badge i{color:var(--c-primary);}
.cat-hero h1{color:#fff;margin-bottom:16px;}
.cat-hero__sub{font-size:clamp(15px,1.5vw,18px);color:rgba(255,255,255,.82);line-height:1.85;max-width:640px;margin-bottom:28px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:26px;}
.hero-trust{display:flex;gap:22px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.72);}
.hero-trust span{display:inline-flex;align-items:center;gap:7px;}
.hero-trust i{color:var(--c-highlight);}

/* ---------- 通用板块 ---------- */
.section{padding:78px 0;}
.section--tight{padding:58px 0;}
.section--surface{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.section__head{max-width:760px;margin-bottom:44px;}
.section__eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--c-primary);letter-spacing:.06em;margin-bottom:12px;}
.section__eyebrow::before{content:"";width:22px;height:2px;background:var(--c-primary);display:inline-block;}
.section__head h2{margin-bottom:14px;}
.section__head p{font-size:16px;color:var(--c-ink-2);line-height:1.9;}

/* ---------- 简介 + 标签 ---------- */
.intro{display:grid;grid-template-columns:1.35fr 1fr;gap:44px;align-items:start;}
.intro__body p{font-size:16px;line-height:1.95;color:var(--c-ink-2);}
.intro__list{margin-top:18px;}
.intro__list li{display:flex;gap:12px;padding:11px 0;border-bottom:1px dashed var(--c-line);font-size:15px;color:var(--c-ink-2);}
.intro__list li i{color:var(--c-accent);margin-top:7px;font-size:13px;}
.intro__aside{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow-s);}
.intro__aside h3{font-size:17px;margin-bottom:14px;}
.tagcloud{display:flex;flex-wrap:wrap;gap:9px;}
.tag{display:inline-flex;align-items:center;padding:7px 14px;border-radius:999px;border:1px solid var(--c-line);background:#FBFAF7;color:var(--c-ink-2);font-size:13px;transition:all .18s ease;}
.tag:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft);}
.intro__aside .hint{margin-top:18px;font-size:13px;color:var(--c-ink-3);line-height:1.8;}

/* ---------- 图文交替 ---------- */
.zigzag{padding:0;margin-bottom:64px;}
.zigzag:last-child{margin-bottom:0;}
.zigzag .cell{display:flex;flex-direction:column;justify-content:center;}
.zigzag__media{position:relative;margin-bottom:22px;}
.zigzag__media img{width:100%;height:318px;object-fit:cover;border-radius:var(--radius-img);box-shadow:var(--shadow);}
.zigzag__badge{position:absolute;left:18px;bottom:18px;display:inline-flex;align-items:center;gap:7px;padding:7px 14px;border-radius:999px;background:rgba(20,22,26,.78);color:#fff;font-size:12px;font-weight:600;backdrop-filter:blur(3px);}
.zigzag__badge i{color:var(--c-highlight);}
.zigzag__body{padding:6px 0;}
.zigzag__index{display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:700;color:var(--c-primary);letter-spacing:.12em;margin-bottom:12px;font-variant-numeric:tabular-nums;}
.zigzag__index::after{content:"";flex:1;height:1px;background:var(--c-line);max-width:60px;}
.zigzag__body h3{margin-bottom:14px;font-size:clamp(20px,2vw,23px);}
.zigzag__body p{font-size:15.5px;line-height:1.92;color:var(--c-ink-2);}
.zigzag__points{margin-top:18px;display:grid;gap:10px;}
.zigzag__points li{display:flex;gap:11px;font-size:14.5px;color:var(--c-ink-2);align-items:flex-start;}
.zigzag__points i{color:var(--c-accent);margin-top:6px;font-size:13px;}
@media(min-width:992px){
  .zigzag--reverse .zigzag__media{order:2;}
  .zigzag--reverse .zigzag__body{order:1;}
  .zigzag__media{padding:0 6px;margin-bottom:0;}
}

/* ---------- 状态对照 ---------- */
.status-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.status-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius);padding:24px 22px;box-shadow:var(--shadow-s);transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;}
.status-card:hover{transform:translateY(-2px);border-color:rgba(232,71,43,.5);box-shadow:var(--shadow);}
.status-card__tag{display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:600;padding:5px 12px;border-radius:999px;background:var(--c-primary-soft);color:var(--c-primary);margin-bottom:14px;}
.status-card h3{font-size:17px;margin-bottom:10px;}
.status-card p{font-size:14.5px;line-height:1.85;color:var(--c-ink-2);}
.status-card__step{margin-top:16px;padding-top:14px;border-top:1px dashed var(--c-line);font-size:13.5px;color:var(--c-ink-3);}
.status-card__step b{color:var(--c-ink);font-weight:600;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;}
.accordion.faq{border:none;background:transparent;margin:0;}
.accordion.faq .accordion-item{border:none;margin-bottom:12px;}
.accordion.faq .accordion-title{position:relative;display:block;padding:19px 58px 19px 22px;font-size:17px;font-weight:600;color:var(--c-ink);background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius);transition:border-color .18s ease,color .18s ease,background-color .18s ease;}
.accordion.faq .accordion-title:hover{border-color:rgba(232,71,43,.55);color:var(--c-primary);}
.accordion.faq .accordion-title::before{position:absolute;right:20px;top:50%;transform:translateY(-50%);left:auto;width:26px;height:26px;border-radius:50%;background:var(--c-bg);color:var(--c-ink-2);display:inline-flex;align-items:center;justify-content:center;font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;content:"\f067";transition:background-color .18s ease,color .18s ease;}
.accordion.faq .accordion-title[aria-expanded="true"]{border-color:var(--c-primary);color:var(--c-ink);border-bottom-left-radius:0;border-bottom-right-radius:0;}
.accordion.faq .accordion-title[aria-expanded="true"]::before{content:"\f068";background:var(--c-primary);color:#fff;}
.accordion.faq .accordion-content{border:1px solid var(--c-line);border-top:none;border-left:3px solid var(--c-primary);border-radius:0 0 var(--radius) var(--radius);background:#FBFAF7;padding:18px 24px 22px;font-size:15px;line-height:1.9;color:var(--c-ink-2);}
.accordion.faq .accordion-content p{margin-bottom:.9em;}

/* ---------- 转化区 + 表单 ---------- */
.cta-section{background:var(--c-dark);color:#C9CDD4;padding:76px 0;}
.cta-wrap{display:grid;grid-template-columns:1fr 1.05fr;gap:48px;align-items:start;}
.cta-copy h2{color:#fff;margin-bottom:14px;}
.cta-copy p{font-size:15.5px;line-height:1.9;color:#9AA1AB;}
.cta-points{margin-top:24px;display:grid;gap:14px;}
.cta-points li{display:flex;gap:12px;font-size:15px;color:#C9CDD4;}
.cta-points i{color:var(--c-highlight);margin-top:6px;font-size:13px;}
.cta-meta{margin-top:28px;font-size:13px;color:#7B828C;display:flex;align-items:center;gap:10px;}
.form-card{background:var(--c-surface);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow-l);}
.form-card h3{font-size:19px;margin-bottom:8px;}
.form-card .form-lead{font-size:14px;color:var(--c-ink-3);margin-bottom:22px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--c-ink);margin-bottom:7px;}
.field input,.field select,.field textarea{width:100%;min-height:47px;padding:11px 14px;border:1px solid var(--c-line);border-radius:var(--radius-s);background:#FCFBF9;color:var(--c-ink);transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;}
.field textarea{min-height:104px;resize:vertical;line-height:1.75;}
.field input:hover,.field select:hover,.field textarea:hover{border-color:#CFCBC2;}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 3px rgba(232,71,43,.12);}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.form-privacy{margin-top:14px;font-size:12.5px;color:var(--c-ink-3);line-height:1.75;}
.form-tip{margin-top:12px;font-size:13.5px;color:var(--c-accent);display:none;}
.form-tip.is-on{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-dark);color:#B9BFC9;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.25fr;gap:38px;padding-bottom:42px;}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-col ul{display:grid;gap:2px;}
.footer-col ul a{font-size:14px;color:#B9BFC9;line-height:1.9;}
.footer-col ul a:hover{color:var(--c-primary);}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand__mark{width:34px;height:34px;border-radius:10px;font-size:15px;}
.footer-brand strong{color:#fff;font-size:16.5px;}
.footer-desc{font-size:14px;line-height:1.85;color:#8F959E;max-width:330px;}
.footer-contact li{display:flex;gap:9px;font-size:14px;line-height:1.9;color:#B9BFC9;}
.footer-contact i{color:var(--c-primary);margin-top:7px;font-size:12px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.09);padding:20px 0;display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px;color:#7B828C;}
.footer-bottom p{margin:0;}

/* ---------- 响应式 ---------- */
@media(max-width:1199px){
  .status-grid{grid-template-columns:repeat(2,1fr);}
}
@media(max-width:991px){
  .main-nav{display:none;}
  .header__cta .btn{display:none;}
  .nav-toggle{display:inline-flex;}
  .header__inner{min-height:64px;}
  .intro{grid-template-columns:1fr;gap:30px;}
  .cta-wrap{grid-template-columns:1fr;gap:34px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .section{padding:60px 0;}
  .cat-hero__inner{padding:52px 0 48px;}
  .zigzag{margin-bottom:50px;}
}
@media(max-width:767px){
  .container,.grid-container{padding-left:20px;padding-right:20px;}
  .section{padding:48px 0;}
  .section__head{margin-bottom:32px;}
  .zigzag__media img{height:236px;}
  .form-row{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-desc{max-width:none;}
  .hero-trust{gap:14px;}
}
@media(max-width:519px){
  body{font-size:15.5px;}
  .container,.grid-container{padding-left:16px;padding-right:16px;}
  .status-grid{grid-template-columns:1fr;}
  .cat-hero{min-height:auto;}
  .hero-actions .btn{width:100%;}
  .form-card{padding:22px;}
  .topbar__actions a:not(.topbar__pill){display:none;}
}

/* roulang page: category3 */
:root{
  --c-primary:#E8472B;
  --c-primary-d:#C6351C;
  --c-primary-soft:rgba(232,71,43,.08);
  --c-accent:#0FA98E;
  --c-accent-soft:rgba(15,169,142,.10);
  --c-highlight:#D8F04A;
  --c-ink:#16181C;
  --c-ink-2:#4A5058;
  --c-ink-3:#7A8189;
  --c-line:#E4E1DA;
  --c-bg:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-dark:#14161A;
  --c-dark-2:#1E2127;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --shadow-1:0 1px 2px rgba(20,22,26,.06),0 8px 24px -12px rgba(20,22,26,.18);
  --shadow-2:0 2px 6px rgba(20,22,26,.07),0 18px 40px -18px rgba(20,22,26,.28);
  --container:1200px;
  --sp-section:88px;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink-2);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{
  margin:0 0 14px;
  color:var(--c-ink);
  line-height:1.3;
  font-weight:700;
  letter-spacing:.2px;
}
h1{font-size:clamp(30px,4.2vw,46px);line-height:1.22;}
h2{font-size:clamp(24px,3vw,32px);}
h3{font-size:20px;}
h4{font-size:16px;}
p{margin:0 0 1.1em;color:var(--c-ink-2);}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease,opacity .18s ease;}
a:hover{color:var(--c-primary-d);}
img{max-width:100%;display:block;border-radius:var(--r-img);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}
.tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

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

/* 顶部信息条 */
.topbar{
  background:var(--c-dark);
  color:#C9CDD4;
  font-size:13px;
  line-height:1.5;
}
.topbar__inner{
  min-height:36px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
}
.topbar__domain{display:inline-flex;align-items:center;gap:8px;color:#EDEFF2;letter-spacing:.4px;}
.topbar__domain i{color:var(--c-highlight);font-size:12px;}
.topbar__actions{display:inline-flex;align-items:center;gap:18px;}
.topbar__note{display:inline-flex;align-items:center;gap:6px;color:#9BA2AC;}
.topbar__link{
  color:#fff;
  background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.16);
  border-radius:999px;
  padding:3px 14px;
  font-size:12.5px;
}
.topbar__link:hover{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}

/* 主导航 */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid var(--c-line);
}
.header__inner{
  min-height:68px;
  display:flex;
  align-items:center;
  gap:28px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand__mark{
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(135deg,var(--c-primary),#F2743C);
  color:#fff;display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;box-shadow:0 6px 14px -8px rgba(232,71,43,.85);
}
.brand__text{
  font-size:17px;font-weight:700;color:var(--c-ink);
  letter-spacing:.3px;white-space:nowrap;
}
.brand:hover .brand__text{color:var(--c-primary);}
.main-nav{flex:1 1 auto;}
.nav-list{display:flex;align-items:center;gap:6px;flex-wrap:wrap;}
.nav-link{
  display:inline-block;
  padding:10px 12px;
  font-size:15px;
  color:var(--c-ink-2);
  border-radius:8px;
  border-bottom:2px solid transparent;
  line-height:1.4;
}
.nav-link:hover{color:var(--c-primary);background:var(--c-primary-soft);}
.nav-link.is-active{color:var(--c-ink);font-weight:600;border-bottom-color:var(--c-primary);background:transparent;}
.header__actions{display:inline-flex;align-items:center;gap:12px;margin-left:auto;}

.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:15px;font-weight:600;line-height:1.4;
  cursor:pointer;
  transition:transform .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn--primary{background:var(--c-primary);color:#fff;box-shadow:0 10px 22px -14px rgba(232,71,43,.95);}
.btn--primary:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-2px);}
.btn--primary:active{transform:translateY(0);}
.btn--ghost{background:transparent;color:var(--c-ink);border-color:var(--c-line);}
.btn--ghost:hover{color:var(--c-primary);border-color:var(--c-primary);transform:translateY(-2px);}
.btn--light{background:#fff;color:var(--c-ink);border-color:rgba(255,255,255,.4);}
.btn--light:hover{background:var(--c-highlight);color:var(--c-ink);transform:translateY(-2px);}
.btn--sm{padding:9px 18px;font-size:14px;}
.btn--block{width:100%;}

.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--c-line);
  background:#fff;
  border-radius:10px;
  cursor:pointer;
  padding:11px 10px;
  flex-direction:column;
  justify-content:space-between;
}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--c-ink);}

.mobile-drawer{
  display:none;
  border-top:1px solid var(--c-line);
  background:#fff;
  padding:14px 24px 22px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer ul{display:flex;flex-direction:column;gap:2px;margin-bottom:14px;}
.mobile-drawer a.m-link{
  display:block;padding:12px 10px;border-radius:10px;color:var(--c-ink-2);font-size:15px;
}
.mobile-drawer a.m-link:hover{background:var(--c-primary-soft);color:var(--c-primary);}

/* 页面主体 */
.main{padding-bottom:0;}
.section{padding:var(--sp-section) 0;}
.section--tight{padding:64px 0;}
.section--alt{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.section-head{max-width:760px;margin-bottom:40px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:1.4px;
  color:var(--c-accent);text-transform:uppercase;margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--c-accent);border-radius:2px;}
.section-title{margin-bottom:12px;}
.section-sub{font-size:15.5px;color:var(--c-ink-3);margin:0;}

/* Hero */
.hero-cat{
  position:relative;
  color:#F2F3F5;
  background-color:var(--c-dark);
  background-image:linear-gradient(102deg,rgba(20,22,26,.94) 0%,rgba(20,22,26,.78) 46%,rgba(20,22,26,.52) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  padding:60px 0 68px;
  overflow:hidden;
}
.hero-cat::after{
  content:"";position:absolute;right:-80px;top:-60px;width:320px;height:320px;
  background:radial-gradient(circle,rgba(216,240,74,.16),transparent 68%);
}
.hero-cat .container{position:relative;z-index:1;}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:14px;color:#A9AEB6;margin-bottom:22px;}
.breadcrumb a{color:#D6D9DE;}
.breadcrumb a:hover{color:var(--c-highlight);}
.breadcrumb span.sep{color:#61666E;}
.badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:5px 14px;border-radius:999px;font-size:13px;font-weight:600;
  background:rgba(216,240,74,.14);color:var(--c-highlight);border:1px solid rgba(216,240,74,.32);
  margin-bottom:18px;
}
.hero-cat h1{color:#fff;max-width:820px;}
.hero-lead{
  max-width:680px;color:#C3C7CD;font-size:17px;margin:16px 0 28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-metrics{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:1px;background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-card);
  overflow:hidden;
  max-width:720px;
}
.hero-metrics .hm{
  background:rgba(20,22,26,.62);
  padding:18px 20px;
}
.hm__num{
  font-size:26px;font-weight:700;color:#fff;line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.hm__num em{font-style:normal;font-size:15px;color:var(--c-highlight);margin-left:2px;}
.hm__label{font-size:13px;color:#A9AEB6;margin-top:4px;}

/* 卖点卡 */
.usp-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:26px 24px;
  height:100%;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.usp-card:hover{transform:translateY(-2px);border-color:rgba(232,71,43,.45);box-shadow:var(--shadow-1);}
.usp-card__icon{
  width:42px;height:42px;border-radius:12px;
  background:var(--c-primary-soft);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:17px;margin-bottom:16px;
}
.usp-card h3{font-size:18px;margin-bottom:10px;}
.usp-card p{font-size:14.5px;color:var(--c-ink-3);margin:0;}
.usp-card__meta{
  display:inline-flex;align-items:center;gap:6px;margin-top:16px;
  font-size:13.5px;font-weight:600;color:var(--c-accent);
}
.usp-card__meta i{font-size:11px;}

/* 时间轴 */
.timeline{position:relative;margin-top:8px;}
.timeline::before{
  content:"";position:absolute;left:25px;top:14px;bottom:26px;width:2px;
  background:linear-gradient(180deg,var(--c-primary) 0%,var(--c-accent) 48%,var(--c-line) 100%);
  border-radius:2px;
}
.tl-item{position:relative;padding:0 0 40px 82px;}
.tl-item:last-child{padding-bottom:0;}
.tl-node{
  position:absolute;left:0;top:0;
  width:52px;height:52px;border-radius:14px;
  background:#fff;border:1px solid var(--c-line);
  color:var(--c-primary);font-weight:700;font-size:15px;
  display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
  box-shadow:0 6px 18px -12px rgba(20,22,26,.4);
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.tl-item:hover .tl-node{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}
.tl-body{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:24px 26px;
  box-shadow:var(--shadow-1);
  transition:border-color .2s ease,transform .2s ease;
}
.tl-item:hover .tl-body{border-color:rgba(232,71,43,.35);transform:translateY(-2px);}
.tl-body h3{font-size:19px;margin-bottom:10px;}
.tl-body p{font-size:15px;color:var(--c-ink-2);}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tl-tags li{
  font-size:12.5px;color:var(--c-ink-2);
  background:var(--c-bg);border:1px solid var(--c-line);
  border-radius:999px;padding:4px 12px;
}
.tl-figure{margin-top:18px;}
.tl-figure img{width:100%;height:190px;object-fit:cover;border-radius:var(--r-img);}
.tl-figure figcaption{font-size:13px;color:var(--c-ink-3);margin-top:8px;}

/* 深色口径区 */
.spec-panel{
  background:var(--c-dark);
  border-radius:20px;
  padding:48px 44px;
  color:#C3C7CD;
  position:relative;
  overflow:hidden;
}
.spec-panel::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:22px 22px;
  pointer-events:none;
}
.spec-panel > *{position:relative;z-index:1;}
.spec-panel h2{color:#fff;}
.spec-panel .section-sub{color:#9BA2AC;}
.spec-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:22px;margin-top:34px;
}
.spec-item{
  background:rgba(255,255,255,.045);
  border:1px solid rgba(255,255,255,.10);
  border-radius:var(--r-card);
  padding:22px 22px 20px;
  transition:border-color .2s ease,background-color .2s ease;
}
.spec-item:hover{border-color:rgba(216,240,74,.4);background:rgba(255,255,255,.07);}
.spec-item h3{color:#fff;font-size:17px;margin-bottom:8px;display:flex;align-items:center;gap:10px;}
.spec-item h3 i{color:var(--c-highlight);font-size:14px;}
.spec-item p{color:#9BA2AC;font-size:14.5px;margin:0;}

/* FAQ */
.faq-wrap{max-width:900px;margin:0 auto;}
.accordion{border:none;background:transparent;margin:0;}
.accordion .accordion-item{border:1px solid var(--c-line);border-radius:var(--r-card);margin-bottom:14px;background:var(--c-surface);overflow:hidden;transition:border-color .2s ease;}
.accordion .accordion-item.is-active{border-color:rgba(232,71,43,.55);}
.accordion .accordion-title{
  display:block;background:transparent;border:none;
  border-left:3px solid transparent;
  padding:20px 52px 20px 22px;
  font-size:17px;font-weight:600;color:var(--c-ink);line-height:1.5;
}
.accordion .accordion-title:hover{color:var(--c-primary);}
.accordion .accordion-title::before{
  right:22px;color:var(--c-primary);font-size:20px;font-weight:400;
}
.accordion .accordion-item.is-active .accordion-title{border-left-color:var(--c-primary);}
.accordion .accordion-content{
  border:none;padding:0 22px 22px 22px;background:var(--c-bg);
  font-size:15px;line-height:1.85;color:var(--c-ink-2);
}
.accordion .accordion-content p{margin:0;font-size:15px;}

/* 底部 CTA */
.cta-band{
  position:relative;
  background-color:var(--c-dark-2);
  background-image:linear-gradient(96deg,rgba(20,22,26,.95) 0%,rgba(20,22,26,.72) 60%,rgba(198,53,28,.55) 100%),url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  color:#fff;
  padding:56px 0;
}
.cta-band__inner{
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);margin-bottom:10px;}
.cta-band p{color:#C3C7CD;max-width:620px;margin:0;font-size:15.5px;}
.cta-band__actions{display:flex;gap:14px;flex-wrap:wrap;}

/* 页脚 */
.site-footer{background:var(--c-dark);color:#9BA2AC;padding:64px 0 0;font-size:14px;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:36px;padding-bottom:40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand__mark{width:32px;height:32px;font-size:14px;}
.footer-brand strong{color:#fff;font-size:16px;}
.footer-desc{font-size:13.8px;line-height:1.9;color:#8B9199;margin:0;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600;}
.footer-col ul{display:flex;flex-direction:column;gap:2px;}
.footer-col ul a{color:#9BA2AC;font-size:14px;line-height:1.9;display:inline-block;padding:2px 0;}
.footer-col ul a:hover{color:var(--c-highlight);}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;line-height:1.9;color:#9BA2AC;}
.footer-contact i{color:var(--c-primary);margin-top:6px;font-size:12px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.09);
  padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:#787E86;
}

/* 响应式 */
@media screen and (max-width:1199px){
  :root{--container:1140px;}
}
@media screen and (max-width:991px){
  :root{--sp-section:64px;}
  .main-nav{display:none;}
  .nav-toggle{display:flex;}
  .header__inner{gap:16px;}
  .header__actions .btn{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .spec-panel{padding:38px 30px;}
  .hero-metrics{grid-template-columns:repeat(3,minmax(0,1fr));}
}
@media screen and (max-width:767px){
  .container{padding:0 20px;}
  .section{padding:52px 0;}
  .section--tight{padding:46px 0;}
  .hero-cat{padding:44px 0 52px;}
  .hero-lead{font-size:15.5px;margin-bottom:22px;}
  .hero-metrics{grid-template-columns:1fr;max-width:100%;}
  .hm__num{font-size:22px;}
  .spec-grid{grid-template-columns:1fr;}
  .tl-item{padding-left:66px;}
  .tl-node{width:44px;height:44px;border-radius:12px;font-size:14px;}
  .timeline::before{left:21px;}
  .tl-body{padding:20px 20px;}
  .cta-band__inner{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .topbar__note{display:none;}
}
@media screen and (max-width:520px){
  .container{padding:0 16px;}
  .brand__text{font-size:15.5px;}
  h1{font-size:28px;}
  .hero-actions .btn{width:100%;}
  .tl-item{padding-left:0;padding-bottom:34px;padding-top:58px;}
  .timeline::before{left:22px;top:0;bottom:20px;}
  .tl-node{top:0;width:44px;height:44px;}
  .cta-band__actions{width:100%;}
  .cta-band__actions .btn{width:100%;}
}

/* roulang page: category4 */
:root{
  --c-primary:#E8472B;
  --c-primary-d:#C6351C;
  --c-accent:#0FA98E;
  --c-highlight:#D8F04A;
  --c-ink:#16181C;
  --c-ink-2:#4A5058;
  --c-line:#E4E1DA;
  --c-bg:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-dark:#14161A;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --sh-card:0 1px 2px rgba(20,22,26,.06),0 8px 24px -12px rgba(20,22,26,.18);
  --sh-hover:0 2px 6px rgba(20,22,26,.08),0 18px 34px -18px rgba(20,22,26,.26);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;line-height:1.85;color:var(--c-ink-2);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0 0 12px;color:var(--c-ink);line-height:1.3;font-weight:700}
p{margin:0 0 14px}
a{color:var(--c-ink);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--c-primary)}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
strong{color:var(--c-ink)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,.accordion-title:focus-visible{
  outline:2px solid var(--c-accent);outline-offset:2px;
}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--c-dark);color:rgba(255,255,255,.68);font-size:13px}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px}
.topbar__domain{letter-spacing:.04em}
.topbar__right{display:flex;align-items:center;gap:16px}
.topbar__tip{display:inline-flex;align-items:center;gap:6px;color:rgba(255,255,255,.68)}
.topbar__cta{display:inline-block;padding:4px 14px;border-radius:999px;background:var(--c-primary);color:#fff;font-size:12.5px;font-weight:600;line-height:20px}
.topbar__cta:hover{background:var(--c-primary-d);color:#fff}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--c-surface);border-bottom:1px solid var(--c-line);box-shadow:0 1px 0 rgba(20,22,26,.02)}
.header__inner{display:flex;align-items:center;gap:20px;min-height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand__mark{width:34px;height:34px;border-radius:10px;background:var(--c-primary);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:15px}
.brand__text{font-size:17px;font-weight:700;color:var(--c-ink);letter-spacing:.01em}
.main-nav{margin-left:auto}
.nav-list{display:flex;align-items:center;gap:4px}
.nav-link{display:inline-block;padding:10px 14px;font-size:15px;color:var(--c-ink-2);border-radius:8px;position:relative}
.nav-link:hover{color:var(--c-primary);background:rgba(232,71,43,.06)}
.nav-link.is-active{color:var(--c-ink);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--c-primary)}
.header__cta{margin-left:10px}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--c-line);border-radius:10px;background:#fff;color:var(--c-ink);align-items:center;justify-content:center;cursor:pointer}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 24px;border-radius:var(--r-btn);border:1px solid transparent;font-size:15px;font-weight:600;line-height:1;cursor:pointer;transition:transform .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease}
.btn--primary{background:var(--c-primary);color:#fff}
.btn--primary:hover{background:var(--c-primary-d);color:#fff;transform:translateY(-2px);box-shadow:0 12px 22px -12px rgba(232,71,43,.65)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{background:transparent;border-color:var(--c-line);color:var(--c-ink)}
.btn--ghost:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px)}
.btn--light{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.42);color:#fff}
.btn--light:hover{background:#fff;border-color:#fff;color:var(--c-ink);transform:translateY(-2px)}
.btn--sm{padding:10px 16px;font-size:14px}
.btn--block{width:100%}

/* ---------- Hero ---------- */
.hero{
  position:relative;display:flex;align-items:center;min-height:520px;padding:76px 0;
  background-color:var(--c-dark);
  background-image:linear-gradient(112deg,rgba(20,22,26,.95) 0%,rgba(20,22,26,.84) 42%,rgba(20,22,26,.56) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.hero__grid{width:100%}
.hero__copy{color:rgba(255,255,255,.82)}
.badge{display:inline-block;padding:6px 14px;border-radius:999px;background:rgba(216,240,74,.16);border:1px solid rgba(216,240,74,.42);color:var(--c-highlight);font-size:13px;font-weight:600;letter-spacing:.06em;margin-bottom:18px}
.hero h1{color:#fff;font-size:clamp(30px,4.2vw,46px);line-height:1.28;margin-bottom:16px;max-width:14em}
.hero__sub{font-size:17px;line-height:1.85;color:rgba(255,255,255,.78);max-width:34em;margin-bottom:28px}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px}
.trust-list{display:flex;flex-wrap:wrap;gap:10px 26px;font-size:14px;color:rgba(255,255,255,.7)}
.trust-list li{display:inline-flex;align-items:center;gap:8px}
.trust-list i{color:var(--c-accent);font-size:12px}
.hero-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:var(--r-card);padding:26px}
.hero-card__title{display:block;font-size:15px;font-weight:600;color:#fff;letter-spacing:.04em;margin-bottom:8px}
.hero-card__hint{font-size:13px;color:rgba(255,255,255,.58);margin:0 0 12px}
.hero-card ul li{display:flex;gap:12px;align-items:flex-start;padding:13px 0;border-bottom:1px dashed rgba(255,255,255,.16);font-size:15px;color:rgba(255,255,255,.85)}
.hero-card ul li:last-child{border-bottom:0;padding-bottom:0}
.hero-card ul li i{color:var(--c-highlight);font-size:11px;margin-top:7px;flex:0 0 auto}
.hero-card ul li strong{color:#fff;font-weight:600;margin-right:6px}

/* ---------- 区块通用 ---------- */
.section{padding:76px 0;border-top:1px solid var(--c-line)}
.section--surface{background:var(--c-surface)}
.section--plain{background:var(--c-bg)}
.section-head{max-width:780px;margin-bottom:36px}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.1em;color:var(--c-primary);margin-bottom:10px}
.section-head h2{font-size:clamp(24px,3vw,34px);margin-bottom:12px}
.section-head p{margin:0;color:var(--c-ink-2)}

/* ---------- 对照双栏 ---------- */
.compare .cell{display:flex;margin-bottom:24px}
.compare-col{width:100%;display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-card);overflow:hidden;transition:transform .2s ease,box-shadow .2s ease}
.compare-col:hover{transform:translateY(-2px);box-shadow:var(--sh-hover)}
.compare-col__head{padding:22px 24px;border-bottom:1px solid var(--c-line)}
.compare-col--base .compare-col__head{background:#F1EFEA}
.compare-col--good .compare-col__head{background:#E9F7F3}
.compare-col__head h3{margin:10px 0 0;font-size:20px}
.compare-tag{display:inline-block;padding:4px 12px;border-radius:999px;font-size:12.5px;font-weight:600;letter-spacing:.04em}
.compare-col--base .compare-tag{background:#E3DFD6;color:#5A574F}
.compare-col--good .compare-tag{background:var(--c-accent);color:#fff}
.compare-col__body{padding:24px;display:flex;flex-direction:column;flex:1}
.bars{margin-bottom:22px}
.bars li{display:grid;grid-template-columns:92px 1fr 46px;align-items:center;gap:12px;margin-bottom:12px;font-size:14px}
.bars__label{color:var(--c-ink-2)}
.bars__track{height:8px;border-radius:999px;background:#EDEAE3;overflow:hidden}
.bars__track i{display:block;height:100%;border-radius:999px}
.compare-col--base .bars__track i{background:#BCB6AA}
.compare-col--good .bars__track i{background:var(--c-accent)}
.bars__val{text-align:right;font-weight:600;color:var(--c-ink);font-variant-numeric:tabular-nums}
.check-list{margin-bottom:20px}
.check-list li{position:relative;padding-left:26px;margin-bottom:10px;font-size:15px;line-height:1.75}
.check-list li::before{position:absolute;left:0;top:0;font-weight:700}
.check-list--no li::before{content:"✕";color:#B9B3A8}
.check-list--yes li::before{content:"✓";color:var(--c-accent)}
.compare-note{margin:auto 0 0;padding-top:16px;border-top:1px dashed var(--c-line);font-size:14px;color:var(--c-ink)}

/* ---------- 图文分栏 ---------- */
.split .cell{margin-bottom:24px}
.split__img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);border:1px solid var(--c-line);box-shadow:var(--sh-card)}
.split__body h2{font-size:clamp(24px,3vw,34px)}
.split__lede{color:var(--c-ink-2);margin-bottom:24px}
.flow-list li{position:relative;padding-left:48px;margin-bottom:22px}
.flow-list li:last-child{margin-bottom:0}
.flow-list li::before{position:absolute;left:0;top:2px;width:34px;height:34px;border-radius:10px;background:rgba(232,71,43,.1);color:var(--c-primary);font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums}
.flow-list li:nth-child(1)::before{content:"01"}
.flow-list li:nth-child(2)::before{content:"02"}
.flow-list li:nth-child(3)::before{content:"03"}
.flow-list li:nth-child(4)::before{content:"04"}
.flow-list strong{display:block;font-size:16px;color:var(--c-ink);margin-bottom:4px}
.flow-list span{display:block;font-size:15px;color:var(--c-ink-2);line-height:1.8}

/* ---------- 风险卡片 ---------- */
.risk-grid .cell{display:flex;margin-bottom:24px}
.risk-card{width:100%;background:var(--c-surface);border:1px solid var(--c-line);border-left:3px solid var(--c-primary);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-card);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.risk-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:rgba(232,71,43,.4);border-left-color:var(--c-primary-d)}
.risk-card__label{display:inline-block;font-size:12.5px;letter-spacing:.08em;color:#8A867E;margin-bottom:8px}
.risk-card__case{margin:0 0 10px;font-size:17px;line-height:1.45}
.risk-card__fix{margin:0;font-size:14.5px;line-height:1.8;color:var(--c-ink-2)}
.risk-card__fix strong{color:var(--c-accent);font-weight:600}

/* ---------- FAQ ---------- */
.faq{margin:0;border:0;background:transparent}
.faq .accordion-item{border:1px solid var(--c-line);border-radius:var(--r-card);background:var(--c-surface);margin-bottom:14px;overflow:hidden;box-shadow:var(--sh-card)}
.faq .accordion-title{display:block;padding:20px 58px 20px 22px;font-size:17px;font-weight:600;color:var(--c-ink);border:0;position:relative;transition:background-color .18s ease,box-shadow .18s ease}
.faq .accordion-title:hover{background:#FCFBF9;color:var(--c-primary);text-decoration:none}
.faq .accordion-title::before{content:"＋";position:absolute;right:22px;top:50%;transform:translateY(-50%);font-size:16px;color:var(--c-primary);font-family:inherit}
.faq .accordion-item.is-active .accordion-title{background:#FCFBF9;box-shadow:inset 3px 0 0 var(--c-primary)}
.faq .accordion-item.is-active .accordion-title::before{content:"－"}
.faq .accordion-content{padding:0 22px 22px;border:0;color:var(--c-ink-2);font-size:15px;line-height:1.85}
.faq .accordion-content p:last-child{margin-bottom:0}

/* ---------- 转化表单 ---------- */
.section--cta{background:linear-gradient(180deg,#FFFDF9 0%,var(--c-bg) 100%)}
.cta-copy h2{font-size:clamp(24px,3vw,34px)}
.cta-copy p{color:var(--c-ink-2)}
.cta-points{margin:22px 0 0}
.cta-points li{position:relative;padding-left:26px;margin-bottom:12px;font-size:15px;line-height:1.8}
.cta-points li::before{content:"✓";position:absolute;left:0;top:0;color:var(--c-accent);font-weight:700}
.support-form{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-card)}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--c-ink);margin-bottom:8px}
.field input,.field select,.field textarea{width:100%;height:48px;padding:0 14px;border:1px solid var(--c-line);border-radius:var(--r-btn);background:#FCFBF9;color:var(--c-ink);transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease}
.field textarea{height:auto;min-height:124px;padding:12px 14px;line-height:1.8;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 3px rgba(232,71,43,.14)}
.field input::placeholder,.field textarea::placeholder{color:#9A968D}
.form-note{font-size:13px;color:#8A867E;margin:14px 0 0;line-height:1.7}
.form-status{margin-top:16px;padding:12px 14px;border-radius:var(--r-btn);background:rgba(15,169,142,.1);border:1px solid rgba(15,169,142,.35);color:#0B7A68;font-size:14px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.7);padding:64px 0 28px;font-size:14px;border-top:1px solid rgba(255,255,255,.06)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:16px;margin-bottom:14px}
.footer-brand .brand__mark{width:32px;height:32px;border-radius:9px;background:var(--c-primary);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:14px}
.footer-desc{margin:0;line-height:1.85;color:rgba(255,255,255,.6)}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin:0 0 16px}
.footer-col li{margin-bottom:10px}
.footer-col a{color:rgba(255,255,255,.68)}
.footer-col a:hover{color:#fff}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;color:rgba(255,255,255,.66)}
.footer-contact i{color:var(--c-accent);font-size:13px;margin-top:5px}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:rgba(255,255,255,.48)}
.footer-bottom p{margin:0}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{padding:0 24px}
}
@media (max-width:991px){
  .container{padding:0 20px}
  .section{padding:60px 0}
  .hero{min-height:auto;padding:56px 0 60px}
  .hero__copy{margin-bottom:32px}
  .hero h1{max-width:none}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .header__cta{display:none}
  .main-nav{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--c-line);box-shadow:var(--sh-card);padding:8px 20px 16px}
  .main-nav.is-open{display:block}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-link{padding:13px 6px;border-bottom:1px solid var(--c-line);border-radius:0}
  .nav-link.is-active{color:var(--c-primary)}
  .nav-link.is-active::after{display:none}
  .compare .cell,.split .cell{margin-bottom:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .hero-card{margin-top:4px}
}
@media (max-width:767px){
  .section{padding:52px 0}
  .section-head{margin-bottom:28px}
  .compare-col__body,.compare-col__head{padding:20px}
  .support-form{padding:22px}
  .risk-grid .cell{margin-bottom:18px}
  .bars li{grid-template-columns:80px 1fr 42px;gap:10px;font-size:13.5px}
}
@media (max-width:560px){
  .container{padding:0 16px}
  .hero{padding:44px 0 52px}
  .hero__sub{font-size:16px}
  .hero__actions .btn{width:100%}
  .topbar__tip{display:none}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .split__img{aspect-ratio:16/10}
}