/* roulang page: index */
:root{
  --brand:#F2611E;
  --brand-dark:#C94312;
  --brand-soft:#FFD9C6;
  --deep:#0E4F4A;
  --deep-2:#0A2B2A;
  --mint:#E8F4F1;
  --lime:#C6F24E;
  --ink:#12171A;
  --text:#2B3238;
  --muted:#5C6670;
  --line:#E6E3DE;
  --bg:#FFF9F4;
  --white:#FFFFFF;
  --grad:linear-gradient(120deg,#F2611E,#E0405E);
  --grad-deep:linear-gradient(160deg,#0E4F4A,#0A2B2A);
  --r-xl:24px;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:8px;
  --sh-1:0 8px 24px rgba(18,23,26,.06);
  --sh-2:0 16px 40px rgba(18,23,26,.10);
  --container:1200px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.01em;line-height:1.25;}
h1{font-size:clamp(28px,3.4vw,44px);font-weight:900;}
h2{font-size:clamp(23px,2.5vw,32px);}
h3{font-size:19px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
table{border-collapse:collapse;width:100%;}
::selection{background:var(--brand-soft);color:var(--brand-dark);}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 48px;}
section{scroll-margin-top:104px;}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--deep);color:#CFDDD9;font-size:13px;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:36px;}
.topbar-note{margin:0;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;}
.topbar-link{color:#CFDDD9;font-weight:600;border-bottom:1px solid rgba(198,242,78,.45);padding-bottom:1px;}
.topbar-link:hover{color:var(--lime);border-color:var(--lime);}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.nav-inner{display:flex;align-items:center;gap:24px;min-height:64px;transition:min-height .25s ease;}
.site-header.is-scrolled .nav-inner{min-height:56px;}
.brand{display:flex;align-items:center;gap:10px;flex:none;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:none;
  background:var(--grad);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-weight:900;font-size:17px;letter-spacing:0;
  box-shadow:0 6px 16px rgba(242,97,30,.28);
}
.brand-text{font-size:16px;font-weight:900;color:var(--ink);letter-spacing:-.01em;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto;flex-wrap:nowrap;}
.nav-link{
  position:relative;display:inline-block;
  padding:8px 12px;border-radius:10px;
  font-size:15px;font-weight:600;color:var(--text);
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--brand);background:var(--bg);}
.nav-link.is-active{color:var(--brand);}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;
  height:3px;border-radius:3px;background:var(--brand);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex:none;}
.drawer-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:#fff;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.drawer-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease;}
.progress{position:absolute;left:0;right:0;bottom:-1px;height:3px;background:transparent;}
.progress span{display:block;height:100%;width:0;background:var(--grad);opacity:0;transition:opacity .3s ease;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:700;font-size:15px;
  padding:12px 24px;border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn:active{transform:scale(.98);}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(242,97,30,.28);}
.btn-primary:hover{background:linear-gradient(120deg,#C94312,#C4364F);box-shadow:0 14px 32px rgba(242,97,30,.34);transform:translateY(-2px);}
.btn-ghost{background:transparent;color:var(--deep);border-color:rgba(255,255,255,.55);}
.btn-ghost:hover{background:rgba(255,255,255,.14);transform:translateY(-2px);}
.btn-outline{background:#fff;color:var(--deep);border-color:var(--line);box-shadow:var(--sh-1);}
.btn-outline:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-dark{background:var(--deep);color:#fff;}
.btn-dark:hover{background:#0A3B37;transform:translateY(-2px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-lg{padding:15px 30px;font-size:16px;}
.btn-block{width:100%;}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(120deg,#F2611E 0%,#E0405E 58%,#C4364F 100%);
  color:#fff;
  padding:72px 0 84px;
}
.hero-bg{position:absolute;inset:0;pointer-events:none;}
.hero-bg::before{
  content:"";position:absolute;right:-140px;top:-190px;width:660px;height:660px;
  border:2px dashed rgba(255,255,255,.20);border-radius:50%;
}
.hero-bg::after{
  content:"";position:absolute;right:60px;bottom:-260px;width:420px;height:420px;
  border:2px solid rgba(255,255,255,.12);border-radius:50%;
}
.hero-inner{position:relative;display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.32);
  color:#fff;font-size:13px;font-weight:700;
  padding:6px 14px;border-radius:999px;
}
.hero-tag::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--lime);}
.hero h1{color:#fff;margin:18px 0 14px;}
.hero-sub{font-size:17px;color:rgba(255,255,255,.92);max-width:520px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px;}
.hero-stats li{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.26);
  border-radius:999px;padding:8px 16px;
  font-size:13px;color:rgba(255,255,255,.94);
}
.hero-stats .dot{width:7px;height:7px;border-radius:50%;background:var(--lime);flex:none;}
.hero-stats strong{font-size:17px;font-weight:900;font-variant-numeric:tabular-nums;}
.hero-media{position:relative;}
.hero-img{
  width:100%;border-radius:var(--r-xl);border:6px solid #fff;
  box-shadow:0 24px 56px rgba(10,43,42,.34);
  transform:rotate(-2deg);
  aspect-ratio:4/3;object-fit:cover;
}
.hero-mini{
  position:absolute;right:-6px;bottom:-26px;width:176px;
  background:#fff;border-radius:var(--r-md);padding:10px;
  box-shadow:0 18px 40px rgba(10,43,42,.28);
  transform:rotate(2deg);
}
.hero-mini img{border-radius:10px;aspect-ratio:1/1;object-fit:cover;}
.hero-mini p{margin-top:8px;font-size:12px;font-weight:700;color:var(--deep);text-align:center;}

/* ---------- 锚点快捷条 ---------- */
.anchor-bar{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px;}
.chip{
  display:inline-block;padding:8px 16px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  font-size:14px;font-weight:600;color:var(--muted);
  transition:all .2s ease;
}
.chip:hover{color:var(--brand);border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--sh-1);}
.chip.is-active{color:#fff;background:var(--brand);border-color:var(--brand);}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--alt{background:#fff;}
.section-head{max-width:760px;margin-bottom:44px;}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:800;letter-spacing:.06em;
  color:var(--brand);background:var(--brand-soft);
  padding:5px 12px;border-radius:var(--r-sm);margin-bottom:14px;
}
.section-head h2{margin-bottom:14px;}
.section-desc{color:var(--muted);font-size:16px;}
.divider{height:1px;background:var(--line);border:0;margin:0;}

/* ---------- 卖点区 ---------- */
.feature-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px;}
.feature-lead{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);
  padding:22px;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.feature-lead:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.feature-lead img{border-radius:var(--r-lg);aspect-ratio:16/9;object-fit:cover;margin-bottom:20px;}
.feature-lead h3{margin-bottom:10px;}
.feature-lead p{color:var(--muted);font-size:15px;margin-bottom:16px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:700;font-size:15px;}
.link-arrow span{transition:transform .2s ease;}
.link-arrow:hover span{transform:translateX(4px);}
.feature-side{display:grid;gap:24px;}
.feature-row{
  display:flex;gap:16px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);padding:22px;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.feature-row:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-soft);}
.feature-icon{
  width:48px;height:48px;flex:none;border-radius:14px;
  background:var(--mint);color:var(--deep);
  display:flex;align-items:center;justify-content:center;
  font-weight:900;font-size:18px;
}
.feature-row h3{font-size:17px;margin-bottom:6px;}
.feature-row p{font-size:14px;color:var(--muted);}

/* ---------- 演示区 ---------- */
.guide{background:#fff;}
.guide-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:center;}
.phone-mock{
  width:296px;margin:0 auto;padding:14px;
  background:var(--deep);border-radius:36px;
  box-shadow:0 26px 60px rgba(10,43,42,.30);
}
.phone-screen{background:var(--bg);border-radius:26px;overflow:hidden;}
.phone-screen img{aspect-ratio:9/16;object-fit:cover;width:100%;}
.phone-bar{display:flex;gap:6px;padding:10px 14px;}
.phone-bar i{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.35);}
.steps{position:relative;}
.step-item{position:relative;padding-left:64px;padding-bottom:34px;}
.step-item:last-child{padding-bottom:0;}
.step-item::before{
  content:"";position:absolute;left:22px;top:48px;bottom:6px;
  border-left:1px dashed var(--line);
}
.step-item:last-child::before{display:none;}
.step-num{
  position:absolute;left:0;top:2px;
  width:44px;height:44px;border-radius:50%;
  background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-weight:900;font-size:17px;font-variant-numeric:tabular-nums;
  box-shadow:0 8px 18px rgba(242,97,30,.28);
}
.step-item h3{margin-bottom:8px;font-size:18px;}
.step-item p{color:var(--muted);font-size:15px;}

/* ---------- 证据区 ---------- */
.proof{background:var(--grad-deep);color:#DCEBE7;padding:96px 0;}
.proof-inner{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.proof h2{color:#fff;margin-bottom:16px;}
.proof-lead{color:#A9C6C0;font-size:16px;margin-bottom:32px;}
.proof-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;}
.stat-num{
  display:block;font-size:clamp(34px,4vw,52px);font-weight:900;
  color:#fff;font-variant-numeric:tabular-nums;line-height:1.1;
}
.stat-num em{font-style:normal;font-size:16px;font-weight:800;color:var(--lime);margin-left:6px;}
.stat-label{font-size:14px;color:#A9C6C0;margin-top:6px;}
.proof-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}
.proof-card{
  background:#fff;border-radius:var(--r-lg);padding:20px;
  box-shadow:0 14px 34px rgba(0,0,0,.18);
}
.proof-card h3{font-size:16px;margin-bottom:8px;}
.proof-card p{font-size:13.5px;color:var(--muted);line-height:1.7;}
.proof-source{
  margin-top:32px;font-size:13px;color:#8FB0AA;
  border-top:1px solid rgba(255,255,255,.14);padding-top:18px;
}

/* ---------- 最新信息 ---------- */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.news-head .section-head{margin-bottom:0;}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.news-card--wide{grid-column:span 2;}
.news-thumb{display:block;}
.news-thumb img{aspect-ratio:16/9;object-fit:cover;width:100%;transition:transform .4s ease;}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-body{padding:20px;display:flex;flex-direction:column;flex:1;}
.tag{
  align-self:flex-start;
  background:var(--mint);color:var(--deep);
  font-size:12px;font-weight:700;padding:4px 10px;
  border-radius:var(--r-sm);margin-bottom:12px;
}
.news-title{font-size:18px;font-weight:700;line-height:1.45;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card--wide .news-title{font-size:21px;}
a.news-title:hover{color:var(--brand);}
.news-desc{
  font-size:14px;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;padding-top:16px;display:flex;align-items:center;justify-content:space-between;
  border-top:1px solid var(--line);font-size:13px;color:var(--muted);
}
.news-foot .link-arrow{font-size:13px;}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-xl);
  background:#fff;padding:56px 24px;text-align:center;
}
.empty-state .empty-icon{
  width:56px;height:56px;border-radius:18px;background:var(--mint);
  color:var(--deep);font-size:24px;font-weight:900;
  display:flex;align-items:center;justify-content:center;margin:0 auto 18px;
}
.empty-state p{color:var(--muted);margin-bottom:18px;}
.pager{display:flex;justify-content:center;margin-top:40px;}

/* ---------- 价格区 ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;}
.price-card{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-xl);padding:30px 26px;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.price-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.price-card--featured{
  border:2px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad);
  background-origin:border-box;background-clip:padding-box,border-box;
  transform:translateY(-12px);
}
.price-card--featured:hover{transform:translateY(-16px);}
.price-badge{
  position:absolute;top:-13px;right:22px;
  background:var(--grad);color:#fff;font-size:12px;font-weight:800;
  padding:5px 12px;border-radius:999px;letter-spacing:.04em;
}
.price-card h3{font-size:19px;margin-bottom:6px;}
.price-usage{font-size:14px;color:var(--muted);margin-bottom:20px;}
.price-num{font-size:34px;font-weight:900;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.1;}
.price-num em{font-style:normal;font-size:15px;font-weight:700;color:var(--muted);margin-left:8px;}
.price-list{margin:24px 0 28px;display:grid;gap:12px;}
.price-list li{display:flex;gap:10px;font-size:14.5px;color:var(--text);}
.check{
  flex:none;width:20px;height:20px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand-dark);
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:900;margin-top:3px;
}

/* ---------- FAQ ---------- */
.faq{max-width:880px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  margin-bottom:14px;overflow:hidden;transition:box-shadow .2s ease;
}
.faq-item:hover{box-shadow:var(--sh-1);}
.faq-q{
  position:relative;width:100%;text-align:left;
  padding:20px 60px 20px 24px;font-size:16.5px;font-weight:700;color:var(--ink);
  display:block;border-left:4px solid transparent;transition:border-color .25s ease,color .2s ease;
}
.faq-q:hover{color:var(--brand);}
.faq-q::after{
  content:"+";position:absolute;right:24px;top:50%;
  transform:translateY(-50%);font-size:22px;font-weight:400;color:var(--brand);
  transition:transform .3s ease;line-height:1;
}
.faq-a{
  max-height:0;overflow:hidden;padding:0 24px 0 24px;
  color:var(--muted);font-size:15px;line-height:1.8;
  transition:max-height .35s ease,padding .3s ease;
}
.faq-item.is-open{border-color:var(--brand-soft);}
.faq-item.is-open .faq-q{border-left-color:var(--brand);color:var(--brand);}
.faq-item.is-open .faq-q::after{transform:translateY(-50%) rotate(45deg);}
.faq-item.is-open .faq-a{padding-bottom:22px;}

/* ---------- 结尾 CTA ---------- */
.cta-band{background:var(--grad-deep);padding:96px 0;color:#fff;}
.cta-card{
  border-radius:32px;padding:52px 48px;text-align:center;
  background:linear-gradient(120deg,rgba(255,255,255,.10),rgba(255,255,255,.03));
  border:1px solid rgba(255,255,255,.16);
}
.cta-card h2{color:#fff;margin-bottom:14px;}
.cta-card p{color:#B7D2CC;margin-bottom:30px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--grad-deep);color:#CFDDD9;padding:72px 0 32px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand-text{color:#fff;}
.footer-brand p{margin-top:16px;font-size:14px;color:#9FBDB7;max-width:320px;}
.footer-col h3{color:#fff;font-size:15px;margin-bottom:16px;}
.footer-col a{display:block;font-size:14px;color:#CFDDD9;padding:5px 0;transition:color .2s ease,transform .2s ease;}
.footer-col a:hover{color:var(--lime);transform:translateX(3px);}
.footer-bottom{
  margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13px;color:#8FB0AA;
}
.back-top{color:#CFDDD9;font-weight:600;}
.back-top:hover{color:var(--lime);}
.footer-space{height:72px;}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:70;
  background:var(--grad);color:#fff;font-weight:700;font-size:15px;
  padding:14px 24px;border-radius:999px;
  box-shadow:0 16px 34px rgba(242,97,30,.38);
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{transform:translateY(-3px);}

/* ---------- 移动端抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;background:#fff;
  padding:24px 24px 32px;overflow-y:auto;
  transform:translateX(100%);transition:transform .32s ease;
  display:flex;flex-direction:column;
}
.drawer.is-open{transform:translateX(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:32px;}
.drawer-close{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  font-size:20px;color:var(--ink);display:flex;align-items:center;justify-content:center;
}
.drawer-group-title{font-size:13px;font-weight:800;color:var(--muted);letter-spacing:.08em;margin:8px 0 12px;}
.drawer-list a{
  display:block;font-size:18px;font-weight:700;color:var(--ink);
  padding:14px 0;border-bottom:1px solid var(--line);
}
.drawer-list a:hover{color:var(--brand);}
.drawer-cta{margin-top:32px;}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 32px;}
  .nav-link{padding:8px 9px;font-size:14px;}
}
@media (max-width:1023px){
  .main-nav{display:none;}
  .drawer-toggle{display:flex;}
  .hero-inner{grid-template-columns:1fr;gap:56px;}
  .hero-media{max-width:520px;}
  .feature-grid{grid-template-columns:1fr;}
  .guide-grid{grid-template-columns:1fr;gap:40px;}
  .proof-inner{grid-template-columns:1fr;gap:40px;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .news-card--wide{grid-column:span 2;}
  .price-grid{grid-template-columns:1fr;max-width:520px;margin:0 auto;}
  .price-card--featured{transform:none;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .proof,.cta-band{padding:56px 0;}
  .topbar-link{display:none;}
  .hero{padding:48px 0 64px;}
  .hero-stats{gap:10px;}
  .hero-stats li{flex:1 1 calc(50% - 5px);justify-content:center;}
  .hero-mini{width:136px;right:0;bottom:-18px;}
  .brand-text{font-size:14px;}
  .anchor-bar{flex-wrap:nowrap;overflow-x:auto;padding-bottom:6px;}
  .chip{flex:none;}
  .news-grid{grid-template-columns:1fr;}
  .news-card--wide{grid-column:span 1;}
  .proof-cards{grid-template-columns:1fr;}
  .cta-card{padding:36px 22px;border-radius:24px;}
  .float-cta{right:16px;bottom:16px;padding:12px 20px;font-size:14px;}
  .footer-grid{grid-template-columns:1fr;}
  .faq-q{padding:18px 52px 18px 18px;font-size:15.5px;}
  .faq-a{padding-left:18px;padding-right:18px;}
  .price-card{padding:24px 20px;}
}
@media (max-width:479px){
  .hero-stats li{flex:1 1 calc(50% - 5px);font-size:12px;}
  .btn-lg{padding:13px 22px;font-size:15px;}
  .hero-cta{gap:10px;}
}

/* roulang page: article */
:root{
  --brand:#F2611E;
  --brand-dark:#C94312;
  --brand-soft:#FFD9C6;
  --green:#0E4F4A;
  --green-deep:#0A2B2A;
  --green-soft:#E8F4F1;
  --lime:#C6F24E;
  --ink:#12171A;
  --text:#2B3238;
  --muted:#5C6670;
  --line:#E6E3DE;
  --bg:#FFF9F4;
  --card:#FFFFFF;
  --grad:linear-gradient(120deg,#F2611E,#E0405E);
  --grad-green:linear-gradient(160deg,#0E4F4A,#0A2B2A);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:8px;
  --r-pill:999px;
  --sh-1:0 8px 24px rgba(18,23,26,.06);
  --sh-2:0 16px 40px rgba(18,23,26,.10);
  --read:760px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand)}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.01em;line-height:1.25}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 4px rgba(242,97,30,.14);border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 32px}}
@media(min-width:1024px){.container{padding:0 48px}}
.section{padding:56px 0}
@media(min-width:1024px){.section{padding:96px 0}}
.section-head{margin-bottom:28px}
.section-head .kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--green);background:var(--green-soft);border-radius:var(--r-sm);padding:5px 12px;margin-bottom:14px}
.section-head h2{font-size:26px}
@media(min-width:768px){.section-head h2{font-size:34px}}
.section-head p{color:var(--muted);margin-top:10px;max-width:720px}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--green);color:#CFDDD9;font-size:13px;height:36px;display:flex;align-items:center}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-left{display:flex;align-items:center;gap:8px;min-width:0}
.topbar-dot{width:7px;height:7px;border-radius:50%;background:var(--lime);flex:none}
.topbar-tip{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-right{display:flex;align-items:center;gap:18px;flex:none}
.topbar-domain{opacity:.75}
.topbar-link{color:#fff;font-weight:700;border-bottom:1px solid rgba(198,242,78,.6)}
.topbar-link:hover{color:var(--lime)}
@media(max-width:767px){.topbar-right .topbar-domain{display:none}}

/* ============ 主导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:saturate(180%) blur(6px);transition:box-shadow .25s ease}
.site-header.is-stuck{box-shadow:var(--sh-1)}
.nav-inner{height:64px;display:flex;align-items:center;gap:20px;transition:height .25s ease}
.site-header.is-stuck .nav-inner{height:56px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{width:34px;height:34px;border-radius:11px;background:var(--grad);color:#fff;font-weight:900;display:grid;place-items:center;font-size:17px;box-shadow:0 6px 16px rgba(242,97,30,.28)}
.brand-text{font-size:16px;font-weight:900;color:var(--ink);letter-spacing:-.01em}
.main-nav{display:none;align-items:center;gap:26px;margin-left:8px}
.main-nav a{font-size:15px;font-weight:600;color:var(--text);position:relative;padding:6px 0}
.main-nav a::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:3px;border-radius:2px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .2s ease}
.main-nav a:hover{color:var(--brand)}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.is-active{color:var(--brand)}
.main-nav a.is-active::after{transform:scaleX(1)}
.nav-cta{margin-left:auto;display:none}
.nav-toggle{display:inline-flex;align-items:center;gap:8px;margin-left:auto;font-size:14px;font-weight:700;color:var(--green);border:1px solid var(--line);border-radius:var(--r-pill);padding:8px 16px;background:#fff}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand)}
@media(min-width:1024px){
  .main-nav{display:flex}
  .nav-cta{display:inline-flex}
  .nav-toggle{display:none}
}
.progress-track{height:3px;background:transparent}
.progress-track span{display:block;height:3px;width:0;background:var(--grad);border-radius:0 3px 3px 0;transition:width .1s linear}

/* 移动抽屉 */
.drawer{position:fixed;inset:0;background:#fff;z-index:90;transform:translateY(-100%);transition:transform .3s ease;padding:24px 20px 120px;overflow-y:auto}
.drawer.is-open{transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}
.drawer-close{width:40px;height:40px;border-radius:50%;background:var(--green-soft);color:var(--green);font-size:20px;font-weight:700;display:grid;place-items:center}
.drawer-label{font-size:12px;font-weight:800;letter-spacing:.08em;color:var(--muted);margin:18px 0 12px}
.drawer a.drawer-link{display:block;font-size:18px;font-weight:700;color:var(--ink);padding:10px 0}
.drawer a.drawer-link:hover{color:var(--brand)}
.drawer-card{margin-top:26px;background:var(--grad);border-radius:var(--r-md);padding:20px;color:#fff}
.drawer-card p{font-size:14px;opacity:.92;margin:8px 0 16px}
.drawer-card .btn{width:100%;justify-content:center;background:#fff;color:var(--brand);}

/* ============ 按钮 / 徽章 / 标签 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-pill);font-weight:700;font-size:15px;padding:11px 24px;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease;white-space:nowrap}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(242,97,30,.26)}
.btn-primary:hover{color:#fff;background:var(--brand-dark);transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:#fff;color:var(--ink);border:1px solid var(--line)}
.btn-ghost:hover{color:var(--brand);border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--sh-1)}
.btn-dark{background:var(--green);color:#fff}
.btn-dark:hover{color:#fff;background:#0b3d39;transform:translateY(-2px)}
.btn-sm{padding:8px 18px;font-size:14px}
.badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.3);border-radius:var(--r-pill);padding:7px 14px;font-size:13px;font-weight:700;color:#fff}
.badge i{width:7px;height:7px;border-radius:50%;background:var(--lime);display:block}
.tag{display:inline-flex;align-items:center;background:var(--green-soft);color:var(--green);border-radius:var(--r-sm);font-size:12px;font-weight:700;padding:4px 10px}
.chip{display:inline-flex;align-items:center;font-size:14px;font-weight:600;color:var(--text);background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);padding:8px 16px;transition:all .2s ease}
.chip:hover{color:var(--brand);border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--sh-1)}

/* ============ 面包屑 ============ */
.crumb-bar{padding-top:22px}
.crumb{font-size:14px;color:var(--muted);display:flex;flex-wrap:wrap;align-items:center;gap:6px}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:#C9C4BD}
.crumb .current{color:var(--muted)}

/* ============ 文章头部 ============ */
.article-hero{padding:20px 0 8px}
.article-hero h1{font-size:28px;line-height:1.3;margin:14px 0 16px;max-width:900px}
@media(min-width:768px){.article-hero h1{font-size:38px}}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--muted);padding-bottom:16px;border-bottom:1px solid var(--line)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C9C4BD}
.article-meta .cat{color:var(--green);font-weight:700}
.layout{display:grid;grid-template-columns:1fr;gap:32px;padding:28px 0 56px}
@media(min-width:1024px){
  .layout{grid-template-columns:minmax(0,1fr) 320px;gap:48px;padding:36px 0 80px}
}
.cover-figure{margin:0 0 28px;border-radius:20px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1)}
.cover-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* ============ 正文 ============ */
.article-body{max-width:var(--read);counter-reset:h2c}
.article-body p{font-size:17px;line-height:1.85;color:var(--text);margin:0 0 1.2em}
.article-body h2{
  counter-increment:h2c;
  font-size:23px;margin:44px 0 16px;padding-left:16px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:2px;background:var(--brand);
}
.article-body h2::after{
  content:counter(h2c,decimal-leading-zero);
  display:block;font-size:12px;font-weight:800;color:#B9B3AB;letter-spacing:.08em;margin-bottom:4px;
}
.article-body h3{font-size:20px;margin:32px 0 12px}
.article-body h4{font-size:17px;margin:24px 0 10px}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand-dark)}
.article-body strong{color:var(--ink);font-weight:800}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;background:var(--green-soft);border-left:4px solid var(--green);border-radius:0 14px 14px 0;color:#08352F;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body ul{margin:0 0 1.2em;padding-left:2px}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:8px;font-size:17px;line-height:1.8}
.article-body ul li::before{content:"";position:absolute;left:4px;top:.72em;width:8px;height:8px;border-radius:50%;background:var(--brand)}
.article-body ol{margin:0 0 1.2em;counter-reset:olc;padding-left:0}
.article-body ol li{position:relative;padding-left:30px;margin-bottom:10px;counter-increment:olc;font-size:17px;line-height:1.8}
.article-body ol li::before{content:counter(olc);position:absolute;left:0;top:.35em;width:20px;height:20px;border-radius:50%;background:var(--brand-soft);color:var(--brand-dark);font-size:12px;font-weight:900;display:grid;place-items:center}
.article-body img{border-radius:16px;margin:20px 0}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;border-radius:14px;overflow:hidden;box-shadow:var(--sh-1)}
.article-body th{background:var(--green);color:#fff;font-weight:700;text-align:left}
.article-body th,.article-body td{padding:12px 16px;border:1px solid var(--line)}
.article-body tbody tr:nth-child(odd){background:var(--bg)}
.article-body tbody tr:nth-child(even){background:#fff}
.article-body hr{border:0;border-top:1px dashed var(--line);margin:32px 0}
.article-body code{background:var(--green-soft);border-radius:6px;padding:2px 6px;font-size:15px;color:#08352F}

.empty-state{
  max-width:var(--read);border:1px dashed #D9D2CA;background:#fff;border-radius:var(--r-lg);
  padding:48px 24px;text-align:center;
}
.empty-state .ico{width:56px;height:56px;border-radius:18px;background:var(--brand-soft);color:var(--brand-dark);display:grid;place-items:center;margin:0 auto 18px;font-weight:900;font-size:22px}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--muted);margin-bottom:20px}

/* ============ 文末 ============ */
.post-foot{max-width:var(--read);margin-top:40px;padding-top:24px;border-top:1px solid var(--line)}
.post-foot h3{font-size:16px;margin-bottom:14px}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.pager{display:grid;grid-template-columns:1fr;gap:14px;margin-bottom:32px}
@media(min-width:600px){.pager{grid-template-columns:1fr 1fr}}
.pager a{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:16px 18px;display:flex;gap:12px;align-items:flex-start;transition:all .2s ease}
.pager a:hover{border-color:var(--brand);box-shadow:var(--sh-1);transform:translateY(-2px)}
.pager .arrow{color:var(--brand);font-weight:900;flex:none}
.pager .p-label{font-size:12px;color:var(--muted);font-weight:700}
.pager .p-title{font-size:15px;font-weight:700;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.back-cat{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--green);background:var(--green-soft);border-radius:var(--r-pill);padding:9px 18px}
.back-cat:hover{color:#fff;background:var(--green)}

/* ============ 侧栏 ============ */
.sidebar{display:flex;flex-direction:column;gap:20px}
@media(min-width:1024px){.sidebar{position:sticky;top:88px;align-self:start}}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:20px;box-shadow:var(--sh-1)}
.side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--brand)}
.toc-list li{margin-bottom:10px}
.toc-list a{font-size:14px;color:var(--muted);display:block;line-height:1.6;padding-left:12px;border-left:2px solid transparent}
.toc-list a:hover,.toc-list a.is-active{color:var(--brand);border-left-color:var(--brand)}
.side-links a{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:14px;font-weight:600;padding:10px 0;border-bottom:1px dashed var(--line)}
.side-links a:last-child{border-bottom:0}
.side-links a span{color:var(--brand);font-weight:900}
.side-cta{background:var(--grad-green);color:#CFDDD9;border:0}
.side-cta h3{color:#fff}
.side-cta h3::before{background:var(--lime)}
.side-cta p{font-size:14px;line-height:1.75;margin-bottom:16px}
.side-cta .btn{width:100%;background:var(--brand);color:#fff;box-shadow:none}
.side-cta .btn:hover{background:#fff;color:var(--green)}

/* ============ 相关推荐 ============ */
.related-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:768px){.related-grid{grid-template-columns:repeat(3,1fr)}}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease;display:flex;flex-direction:column}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.card-thumb{aspect-ratio:16/9;overflow:hidden}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.card:hover .card-thumb img{transform:scale(1.04)}
.card-body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:17px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body p{font-size:14px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin:0}
.card-foot{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted);margin-top:auto;padding-top:8px}
.card-foot .go{color:var(--brand);font-weight:900}

/* ============ CTA 带 ============ */
.cta-band{background:var(--grad-green);padding:56px 0}
.cta-box{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:32px;padding:32px 24px;text-align:center}
@media(min-width:768px){.cta-box{padding:48px 40px}}
.cta-box h2{color:#fff;font-size:26px}
.cta-box p{color:#CFDDD9;margin:12px auto 26px;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}

/* ============ 浮动 CTA ============ */
.float-cta{position:fixed;right:18px;bottom:18px;z-index:70;display:inline-flex;align-items:center;gap:8px;background:var(--grad);color:#fff;font-weight:800;font-size:14px;border-radius:var(--r-pill);padding:12px 20px;box-shadow:0 14px 32px rgba(242,97,30,.34);opacity:0;transform:translateY(14px);pointer-events:none;transition:opacity .25s ease,transform .25s ease}
.float-cta.is-show{opacity:1;transform:translateY(0);pointer-events:auto}
.float-cta:hover{color:#fff;transform:translateY(-2px)}
@media(max-width:520px){.float-cta{right:12px;bottom:12px;padding:11px 16px;font-size:13px}}

/* ============ 页脚 ============ */
.site-footer{background:var(--grad-green);color:#CFDDD9;padding-top:56px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px}}
.footer-brand .brand{margin-bottom:16px}
.footer-brand .brand-mark{box-shadow:none}
.footer-brand .brand-text{color:#fff}
.footer-brand p{font-size:14px;line-height:1.8;color:#AFC5C0;margin:0;max-width:340px}
.footer-col h3{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col a{display:block;font-size:14px;color:#CFDDD9;padding:6px 0}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{margin-top:40px;border-top:1px solid rgba(255,255,255,.14);padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#9DB6B1}
.footer-bottom a{color:#CFDDD9}
.footer-bottom a:hover{color:var(--lime)}
.footer-space{height:64px}
@media(max-width:767px){.footer-space{height:56px}}
.skeleton{background:linear-gradient(90deg,#EFEBE6 25%,#F7F4F0 37%,#EFEBE6 63%);background-size:400% 100%;animation:sk 1.4s ease infinite}
@keyframes sk{0%{background-position:100% 50%}100%{background-position:0 50%}}

/* roulang page: category1 */
:root{
  --brand:#F2611E;
  --brand-dark:#C94312;
  --brand-soft:#FFD9C6;
  --green:#0E4F4A;
  --green-soft:#E8F4F1;
  --accent:#C6F24E;
  --ink:#12171A;
  --text:#2B3238;
  --muted:#5C6670;
  --line:#E6E3DE;
  --bg:#FFF9F4;
  --card:#FFFFFF;
  --grad-brand:linear-gradient(120deg,#F2611E,#E0405E);
  --grad-dark:linear-gradient(160deg,#0E4F4A,#0A2B2A);
  --r-xl:32px;
  --r-lg:24px;
  --r-md:18px;
  --r-sm:8px;
  --sh-1:0 8px 24px rgba(18,23,26,.06);
  --sh-2:0 16px 40px rgba(18,23,26,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:16px}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.01em;line-height:1.25}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;box-shadow:0 0 0 4px rgba(242,97,30,.14)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 32px}}
@media(min-width:1280px){.container{padding:0 48px}}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--card);border-bottom:1px solid var(--line);transition:box-shadow .25s var(--ease)}
.site-header.is-stuck{box-shadow:var(--sh-1)}
.topbar{background:var(--green);color:#CFDDD9;font-size:13px;height:36px;display:flex;align-items:center}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%}
.topbar-left{display:flex;align-items:center;gap:12px;min-width:0}
.topbar-domain{color:var(--accent);font-weight:700;letter-spacing:.02em;flex:none}
.topbar-note{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-action{color:#CFDDD9;border-bottom:1px solid rgba(207,221,217,.4);padding-bottom:1px;flex:none}
.topbar-action:hover{color:var(--accent);border-color:var(--accent)}
@media(max-width:767px){
  .topbar-note{display:none}
  .topbar-left{flex:1}
}
.navbar{height:64px;display:flex;align-items:center;transition:height .25s var(--ease)}
.site-header.is-stuck .navbar{height:56px}
.nav-inner{display:flex;align-items:center;gap:20px;width:100%}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{width:36px;height:36px;border-radius:12px;background:var(--grad-brand);color:#fff;font-weight:900;display:grid;place-items:center;font-size:18px;box-shadow:0 6px 16px rgba(242,97,30,.28)}
.brand-text{font-weight:900;font-size:17px;color:var(--ink);letter-spacing:-.02em;white-space:nowrap}
@media(max-width:520px){.brand-text{font-size:15px}}
.main-nav{display:none;align-items:center;gap:4px;margin-left:auto}
.main-nav a{position:relative;padding:10px 12px;border-radius:999px;font-size:15px;font-weight:600;color:var(--text);white-space:nowrap}
.main-nav a::after{content:"";position:absolute;left:12px;right:12px;bottom:4px;height:3px;border-radius:3px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease)}
.main-nav a:hover{color:var(--brand)}
.main-nav a.active{color:var(--brand)}
.main-nav a.active::after{transform:scaleX(1)}
@media(min-width:1024px){.main-nav{display:flex}}
.nav-cta{display:none}
@media(min-width:1024px){.nav-cta{display:inline-flex;margin-left:8px}}
.nav-toggle{display:grid;place-items:center;width:42px;height:42px;border-radius:14px;border:1px solid var(--line);margin-left:auto;background:var(--card)}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
@media(min-width:1024px){.nav-toggle{display:none}}

.anchor-bar{display:flex;gap:8px;overflow-x:auto;padding:10px 0;border-top:1px solid var(--line);scrollbar-width:none}
.anchor-bar::-webkit-scrollbar{display:none}
.chip{flex:none;padding:7px 14px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:14px;font-weight:600;color:var(--muted);transition:all .2s var(--ease)}
.chip:hover{color:var(--brand);border-color:var(--brand-soft);transform:translateY(-2px)}
.chip.is-current{background:var(--brand-soft);border-color:var(--brand-soft);color:var(--brand-dark)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;border-radius:999px;font-weight:700;font-size:15px;transition:all .22s var(--ease);cursor:pointer;border:1px solid transparent}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 10px 24px rgba(242,97,30,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(242,97,30,.34)}
.btn-primary:active{transform:scale(.98);background:var(--brand-dark)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line);box-shadow:var(--sh-1)}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--brand-soft);color:var(--brand-dark)}
.btn-ghost:active{transform:scale(.98)}
.btn-dark{background:var(--green);color:#fff}
.btn-dark:hover{transform:translateY(-2px);background:#0A3B37}
.btn-sm{padding:10px 18px;font-size:14px}

/* ---------- hero ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--bg);padding:44px 0 40px;min-height:280px;display:flex;align-items:center}
.page-hero::before{content:"";position:absolute;top:-140px;right:-120px;width:460px;height:460px;border-radius:50%;background:radial-gradient(circle at 50% 50%,rgba(242,97,30,.34),rgba(224,64,94,.16) 46%,rgba(242,97,30,0) 72%);pointer-events:none}
.page-hero::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(18,23,26,.045) 1px,transparent 1px);background-size:22px 22px;opacity:.55;pointer-events:none}
.hero-inner{position:relative;z-index:2;max-width:820px}
.hero-tag{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;font-weight:700;color:var(--green);box-shadow:var(--sh-1)}
.hero-tag i{width:8px;height:8px;border-radius:50%;background:var(--accent);display:block}
.page-hero h1{margin:16px 0 12px;font-size:clamp(30px,5vw,44px);font-weight:900}
.page-hero .hero-sub{font-size:17px;color:var(--muted);max-width:640px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.hero-badges .badge{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 16px;font-size:14px;font-weight:600;color:var(--text);box-shadow:var(--sh-1)}
.hero-badges .badge b{font-weight:900;color:var(--ink);font-variant-numeric:tabular-nums}
.hero-badges .badge i{width:8px;height:8px;border-radius:50%;background:var(--accent);display:block;flex:none}
@media(max-width:520px){.hero-badges{display:grid;grid-template-columns:1fr 1fr;gap:10px}.hero-badges .badge{justify-content:center;padding:8px 10px;font-size:13px}}

.crumb{display:flex;flex-wrap:wrap;gap:8px;font-size:14px;color:var(--muted);padding:18px 0 0}
.crumb a:hover{color:var(--brand)}
.crumb span.sep{color:#C3CACF}
.crumb .now{color:var(--muted)}

/* ---------- sections ---------- */
.section{padding:56px 0}
@media(min-width:768px){.section{padding:80px 0}}
@media(min-width:1280px){.section{padding:96px 0}}
.section-head{max-width:760px;margin-bottom:32px}
.section-head .eyebrow{display:inline-block;font-size:13px;font-weight:800;letter-spacing:.08em;color:var(--brand);margin-bottom:10px}
.section-head h2{font-size:clamp(24px,3.2vw,32px);margin-bottom:12px}
.section-head p{color:var(--muted);font-size:16px}

/* ---------- 图文交替 ---------- */
.zigzag{display:grid;gap:36px}
@media(min-width:900px){.zigzag{gap:56px}}
.zigzag-item{display:grid;gap:24px;align-items:center}
@media(min-width:900px){
  .zigzag-item{grid-template-columns:1fr 1fr;gap:48px}
  .zigzag-item.reverse .zigzag-media{order:2}
}
.zigzag-media{position:relative}
.zigzag-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:20px;box-shadow:var(--sh-1);border:1px solid var(--line)}
.zigzag-index{position:absolute;left:-8px;top:-14px;width:52px;height:52px;border-radius:16px;background:var(--grad-brand);color:#fff;font-weight:900;font-size:20px;display:grid;place-items:center;box-shadow:0 10px 24px rgba(242,97,30,.3)}
.zigzag-body h3{font-size:clamp(20px,2.4vw,24px);margin-bottom:12px}
.zigzag-body p{color:var(--text);margin-bottom:12px}
.zigzag-body .point-list li{position:relative;padding-left:22px;margin-bottom:8px;color:var(--muted);font-size:15px}
.zigzag-body .point-list li::before{content:"";position:absolute;left:0;top:10px;width:8px;height:8px;border-radius:50%;background:var(--brand)}

/* ---------- 参数表 ---------- */
.table-wrap{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1)}
table{width:100%;border-collapse:collapse;font-size:15px}
thead th{background:var(--green);color:#fff;text-align:left;padding:14px 16px;font-weight:700;font-size:14px;letter-spacing:.02em}
tbody td{padding:14px 16px;border-top:1px solid var(--line);vertical-align:top}
tbody tr:nth-child(odd){background:var(--bg)}
tbody td:first-child{font-weight:700;color:var(--ink);width:38%;white-space:nowrap}
@media(max-width:520px){
  table{font-size:14px}
  thead th,tbody td{padding:12px}
  tbody td:first-child{white-space:normal;width:40%}
}

/* ---------- 数据区 ---------- */
.proof{background:var(--grad-dark);color:#DCE8E5;border-radius:var(--r-xl);padding:44px 28px;position:relative;overflow:hidden}
@media(min-width:768px){.proof{padding:56px 48px}}
.proof::after{content:"";position:absolute;right:-80px;bottom:-120px;width:320px;height:320px;border-radius:50%;border:1px solid rgba(198,242,78,.16)}
.proof-grid{display:grid;gap:32px}
@media(min-width:900px){.proof-grid{grid-template-columns:1fr 1fr;gap:56px;align-items:center}}
.proof h2{color:#fff;font-size:clamp(24px,3.2vw,32px);margin-bottom:14px}
.proof .proof-text{color:rgba(220,232,229,.86);font-size:16px}
.proof-numbers{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:28px}
.proof-numbers .num{font-size:clamp(28px,4vw,40px);font-weight:900;color:#fff;font-variant-numeric:tabular-nums;line-height:1.1}
.proof-numbers .num em{font-style:normal;font-size:16px;color:var(--accent);margin-left:4px;font-weight:800}
.proof-numbers .label{font-size:13px;color:rgba(220,232,229,.7);margin-top:6px}
.proof-cards{display:grid;gap:16px}
@media(min-width:520px){.proof-cards{grid-template-columns:1fr 1fr}}
.proof-card{background:#fff;border-radius:var(--r-md);padding:20px;box-shadow:var(--sh-2)}
.proof-card h4{font-size:16px;margin-bottom:6px}
.proof-card p{font-size:14px;color:var(--muted)}

/* ---------- 卡片 ---------- */
.card-grid{display:grid;gap:20px}
@media(min-width:768px){.card-grid{grid-template-columns:repeat(3,1fr)}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:transform .25s var(--ease),box-shadow .25s var(--ease);display:flex;flex-direction:column}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-tag{align-self:flex-start;background:var(--green-soft);color:var(--green);font-size:13px;font-weight:700;padding:5px 12px;border-radius:var(--r-sm)}
.card h3{font-size:18px}
.card p{font-size:14px;color:var(--muted)}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted)}
.card-link{color:var(--brand);font-weight:700}
.card-link:hover{color:var(--brand-dark)}

/* ---------- 通道 ---------- */
.channels{display:grid;gap:22px;align-items:stretch}
@media(min-width:768px){.channels{grid-template-columns:repeat(3,1fr)}}
.channel{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:28px 24px;box-shadow:var(--sh-1);display:flex;flex-direction:column;gap:14px;transition:transform .25s var(--ease),box-shadow .25s var(--ease)}
.channel:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.channel.featured{border:2px solid transparent;background:linear-gradient(#fff,#fff) padding-box,var(--grad-brand) border-box;box-shadow:var(--sh-2)}
@media(min-width:768px){.channel.featured{transform:translateY(-12px)}.channel.featured:hover{transform:translateY(-14px)}}
.channel-flag{position:absolute;top:-13px;right:20px;background:var(--grad-brand);color:#fff;font-size:12px;font-weight:800;padding:5px 12px;border-radius:999px}
.channel h3{font-size:19px}
.channel .channel-desc{font-size:14px;color:var(--muted);min-height:44px}
.channel ul li{position:relative;padding-left:24px;font-size:14px;color:var(--text);margin-bottom:8px}
.channel ul li::before{content:"✓";position:absolute;left:0;top:0;color:var(--brand);font-weight:900}
.channel .btn{width:100%;margin-top:auto}

/* ---------- FAQ ---------- */
.faq{max-width:880px;margin:0 auto;display:grid;gap:14px}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:box-shadow .25s var(--ease)}
.faq-item.is-open{box-shadow:var(--sh-1)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;padding:20px 22px;font-size:17px;font-weight:700;color:var(--ink)}
.faq-q .plus{flex:none;width:26px;height:26px;border-radius:50%;background:var(--bg);border:1px solid var(--line);position:relative;transition:transform .25s var(--ease),background .25s var(--ease)}
.faq-q .plus::before,.faq-q .plus::after{content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;transform:translate(-50%,-50%)}
.faq-q .plus::before{width:12px;height:2px}
.faq-q .plus::after{width:2px;height:12px}
.faq-item.is-open .faq-q .plus{transform:rotate(45deg);background:var(--brand-soft);border-color:var(--brand-soft)}
.faq-a{display:none;padding:0 22px 20px;border-left:4px solid var(--brand);margin:0 0 0 0}
.faq-a p{font-size:15px;line-height:1.8;color:var(--muted)}
.faq-item.is-open .faq-a{display:block}

/* ---------- CTA ---------- */
.cta-band{background:var(--grad-dark);padding:56px 0;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;left:-100px;top:-100px;width:340px;height:340px;border-radius:50%;background:radial-gradient(circle,rgba(242,97,30,.28),rgba(242,97,30,0) 70%)}
.cta-card{position:relative;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-xl);padding:40px 28px;text-align:center;backdrop-filter:none}
@media(min-width:768px){.cta-card{padding:56px 48px}}
.cta-card h2{color:#fff;font-size:clamp(24px,3.4vw,34px);margin-bottom:12px}
.cta-card p{color:rgba(220,232,229,.85);max-width:620px;margin:0 auto 26px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.cta-actions .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff;border-color:#fff}

/* ---------- 浮动 CTA ---------- */
.float-cta{position:fixed;right:20px;bottom:20px;z-index:70;background:var(--grad-brand);color:#fff;font-weight:800;font-size:15px;padding:14px 22px;border-radius:999px;box-shadow:0 14px 30px rgba(242,97,30,.36);opacity:0;visibility:hidden;transform:translateY(12px);transition:all .28s var(--ease)}
.float-cta.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{transform:translateY(-2px);box-shadow:0 18px 38px rgba(242,97,30,.42)}
@media(max-width:520px){.float-cta{right:14px;bottom:14px;padding:12px 18px;font-size:14px}}

/* ---------- footer ---------- */
.site-footer{background:var(--green);color:#CFDDD9;margin-top:0}
.footer-grid{display:grid;gap:32px;padding:52px 0 32px}
@media(min-width:768px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr}}
.footer-brand .brand{margin-bottom:14px}
.footer-brand .brand-text{color:#fff}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(207,221,217,.85);max-width:360px}
.footer-col h3{color:#fff;font-size:15px;font-weight:800;margin-bottom:14px;letter-spacing:.02em}
.footer-col a{display:block;font-size:14px;color:#CFDDD9;padding:5px 0}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{border-top:1px solid rgba(207,221,217,.18);padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;font-size:13px;color:rgba(207,221,217,.75)}
.footer-bottom .back-top{color:#CFDDD9;font-weight:700}
.footer-bottom .back-top:hover{color:var(--accent)}
.footer-space{height:72px}
@media(max-width:767px){.footer-space{height:88px}}

/* ---------- 抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:90;background:#fff;transform:translateX(100%);transition:transform .3s var(--ease);display:flex;flex-direction:column;padding:24px 20px 32px;overflow-y:auto}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
.drawer-close{width:42px;height:42px;border-radius:14px;border:1px solid var(--line);display:grid;place-items:center;font-size:20px;color:var(--ink)}
.drawer-label{font-size:13px;font-weight:800;letter-spacing:.08em;color:var(--muted);margin:18px 0 10px}
.drawer a.d-link{display:block;font-size:18px;font-weight:700;color:var(--ink);padding:10px 0}
.drawer a.d-link.active{color:var(--brand)}
.drawer .d-cta{margin-top:26px;background:var(--bg);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px}
.drawer .d-cta p{font-size:14px;color:var(--muted);margin:8px 0 16px}
.drawer .d-cta .btn{width:100%}

/* ---------- 辅助 ---------- */
.note-box{background:var(--green-soft);border-left:4px solid var(--green);border-radius:0 14px 14px 0;padding:18px 20px;font-size:15px;color:var(--text)}
.muted{color:var(--muted)}

/* roulang page: category2 */
/* ===== 设计变量 ===== */
:root{
  --brand:#F2611E;
  --brand-deep:#C94312;
  --brand-soft:#FFD9C6;
  --ink:#0E4F4A;
  --ink-soft:#E8F4F1;
  --lime:#C6F24E;
  --text:#12171A;
  --body:#2B3238;
  --muted:#5C6670;
  --line:#E6E3DE;
  --bg:#FFF9F4;
  --card:#FFFFFF;
  --grad-brand:linear-gradient(120deg,#F2611E,#E0405E);
  --grad-ink:linear-gradient(160deg,#0E4F4A,#0A2B2A);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:8px;
  --sh-1:0 8px 24px rgba(18,23,26,.06);
  --sh-2:0 16px 40px rgba(18,23,26,.10);
  --container:1200px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}

/* ===== reset / base ===== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--body);
  background:var(--bg);
  font-weight:400;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:800;letter-spacing:-.01em;line-height:1.25;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;}
img{max-width:100%;display:block;border-radius:16px;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
  box-shadow:0 0 0 4px rgba(242,97,30,.14);
  border-radius:6px;
}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 48px;}
.num{font-variant-numeric:tabular-nums;font-weight:900;}

/* ===== 顶部信息条 ===== */
.topbar{background:var(--ink);color:#CFDDD9;font-size:13px;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px;}
.topbar-note{display:flex;align-items:center;gap:8px;line-height:1.4;}
.dot{width:8px;height:8px;border-radius:50%;background:var(--lime);flex:none;}
.topbar-actions{display:flex;align-items:center;gap:18px;flex:none;}
.topbar-domain{color:#9FBDB6;letter-spacing:.02em;}
.topbar-link{color:#CFDDD9;border-bottom:1px solid transparent;padding-bottom:1px;}
.topbar-link:hover{color:var(--lime);border-color:var(--lime);}

/* ===== 主导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background-color .25s ease;
  backdrop-filter:saturate(160%) blur(6px);
}
.site-header.is-scrolled{box-shadow:0 6px 22px rgba(18,23,26,.09);}
.nav-inner{display:flex;align-items:center;gap:28px;min-height:64px;transition:min-height .25s ease;}
.site-header.is-scrolled .nav-inner{min-height:56px;}
.brand{display:flex;align-items:center;gap:10px;flex:none;}
.brand-mark{
  width:36px;height:36px;border-radius:12px;background:var(--grad-brand);
  color:#fff;font-weight:900;display:grid;place-items:center;font-size:18px;
  box-shadow:0 6px 16px rgba(242,97,30,.28);
}
.brand-text{font-size:16px;font-weight:800;color:var(--text);letter-spacing:-.01em;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:8px;}
.nav-link{
  position:relative;padding:8px 12px;border-radius:8px;font-size:15px;font-weight:600;color:var(--body);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:3px;border-radius:3px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-link:hover{color:var(--brand);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand);}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-side{margin-left:auto;display:flex;align-items:center;gap:12px;flex:none;}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:700;padding:13px 26px;font-size:15px;line-height:1;
  border:1px solid transparent;transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease;
}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 10px 24px rgba(242,97,30,.26);}
.btn-primary:hover{background:var(--brand-deep);background-image:none;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:scale(.98);}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);box-shadow:var(--sh-1);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}

/* ===== 移动端抽屉 ===== */
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;
  flex-direction:column;justify-content:center;align-items:center;gap:5px;
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--text);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.drawer{
  position:fixed;inset:0;z-index:70;background:#fff;padding:88px 24px 32px;overflow-y:auto;
  transform:translateY(-8px);opacity:0;pointer-events:none;transition:opacity .25s ease,transform .25s ease;
}
.drawer.is-open{opacity:1;pointer-events:auto;transform:translateY(0);}
.drawer-group{margin-bottom:28px;}
.drawer-group h4{font-size:13px;color:var(--muted);letter-spacing:.08em;margin-bottom:12px;font-weight:700;}
.drawer-group a{display:block;font-size:18px;font-weight:700;color:var(--text);padding:10px 0;}
.drawer-group a:hover{color:var(--brand);}
.drawer-cta{
  border-radius:var(--r-md);background:var(--grad-ink);color:#fff;padding:22px;margin-top:8px;
}
.drawer-cta p{color:#CFDDD9;font-size:14px;margin:8px 0 16px;}

/* ===== 分区锚点条 ===== */
.anchor-bar{
  display:flex;gap:10px;justify-content:center;flex-wrap:wrap;
  padding:14px 48px;background:#fff;border-bottom:1px solid var(--line);
  position:sticky;top:64px;z-index:50;
}
.chip{
  border-radius:999px;border:1px solid var(--line);background:#fff;
  padding:7px 16px;font-size:14px;font-weight:600;color:var(--body);
}
.chip:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);box-shadow:var(--sh-1);}
.chip.is-active{background:var(--brand-soft);border-color:var(--brand-soft);color:var(--brand-deep);}

/* ===== 分类页 Hero ===== */
.hero-cat{
  position:relative;overflow:hidden;background:var(--bg);
  padding:64px 0 56px;border-bottom:1px solid var(--line);
}
.hero-cat::before{
  content:"";position:absolute;right:-160px;top:-180px;width:520px;height:520px;border-radius:50%;
  background:var(--grad-brand);opacity:.16;filter:blur(6px);
}
.hero-cat::after{
  content:"";position:absolute;inset:0;opacity:.12;pointer-events:none;
  background-image:url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center right;
}
.hero-cat-inner{position:relative;z-index:2;max-width:860px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:800;letter-spacing:.08em;
  color:var(--brand-deep);background:var(--brand-soft);border-radius:var(--r-sm);padding:6px 12px;margin-bottom:18px;
}
.hero-cat h1{font-size:44px;font-weight:900;margin-bottom:16px;}
.hero-cat .lead{font-size:17px;color:var(--muted);max-width:640px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.badge{
  display:inline-flex;align-items:center;gap:9px;background:#fff;border:1px solid var(--line);
  border-radius:999px;padding:9px 18px;font-size:14px;color:var(--body);box-shadow:var(--sh-1);
}
.badge .dot{background:var(--lime);box-shadow:0 0 0 3px rgba(198,242,78,.28);}
.badge b{font-variant-numeric:tabular-nums;font-weight:900;color:var(--text);font-size:15px;}

/* ===== 面包屑 ===== */
.breadcrumb{background:#fff;border-bottom:1px solid var(--line);font-size:14px;color:var(--muted);}
.breadcrumb-inner{display:flex;align-items:center;gap:8px;padding:14px 0;flex-wrap:wrap;}
.breadcrumb a{color:var(--brand);}
.breadcrumb a:hover{color:var(--brand-deep);text-decoration:underline;}
.breadcrumb .sep{color:#B9B2AA;}
.breadcrumb .current{color:var(--muted);}

/* ===== 板块基础 ===== */
.section{padding:96px 0;}
.section.tight{padding:72px 0;}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head .kicker{font-size:13px;font-weight:800;letter-spacing:.1em;color:var(--brand);margin-bottom:12px;}
.section-head h2{font-size:32px;margin-bottom:14px;}
.section-head p{color:var(--muted);font-size:16px;}
.bg-white{background:#fff;}

/* ===== 时间线 ===== */
.timeline-wrap{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:56px;align-items:start;}
.timeline{position:relative;margin:0;padding:0;list-style:none;}
.timeline::before{
  content:"";position:absolute;left:23px;top:16px;bottom:16px;width:2px;
  background:linear-gradient(180deg,var(--brand),var(--brand-soft));
}
.tl-item{position:relative;padding-left:72px;padding-bottom:30px;}
.tl-item:last-child{padding-bottom:0;}
.tl-node{
  position:absolute;left:0;top:0;width:48px;height:48px;border-radius:50%;
  background:var(--brand);color:#fff;font-weight:900;font-size:18px;
  display:grid;place-items:center;border:4px solid #fff;
  box-shadow:0 8px 20px rgba(242,97,30,.28);
}
.tl-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:22px 24px;
  box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.tl-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#F1C7AE;}
.tl-card h3{font-size:19px;margin-bottom:8px;}
.tl-card p{font-size:15px;color:var(--body);}
.tl-meta{
  display:inline-flex;align-items:center;gap:7px;margin-top:14px;font-size:13px;color:var(--ink);
  background:var(--ink-soft);border-radius:var(--r-sm);padding:5px 12px;font-weight:600;
}
.tl-meta::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--lime);}

/* ===== 侧栏卡片 ===== */
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;
  box-shadow:var(--sh-1);margin-bottom:20px;
}
.side-card h3{font-size:17px;margin-bottom:14px;}
.side-list li{
  display:flex;gap:10px;padding:10px 0;border-bottom:1px dashed var(--line);font-size:14px;color:var(--body);
}
.side-list li:last-child{border-bottom:0;}
.side-list .tick{color:var(--brand);font-weight:900;flex:none;}
.side-figure img{border-radius:var(--r-md);width:100%;height:190px;object-fit:cover;}
.side-figure figcaption{font-size:13px;color:var(--muted);margin-top:10px;}

/* ===== 数据统计条 ===== */
.stats-band{background:var(--grad-ink);color:#fff;padding:72px 0;}
.stats-band .section-head h2{color:#fff;}
.stats-band .section-head p{color:#BFD6D2;}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.stat{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-md);padding:26px 22px;
}
.stat-num{font-size:42px;line-height:1.05;color:#fff;font-variant-numeric:tabular-nums;font-weight:900;display:flex;align-items:baseline;gap:6px;}
.stat-unit{font-size:16px;font-weight:700;color:var(--lime);}
.stat-label{font-size:14px;color:#BFD6D2;margin-top:10px;}

/* ===== 要点横条卡 ===== */
.strip-list{display:grid;gap:16px;}
.strip-card{
  display:flex;align-items:flex-start;gap:20px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);padding:24px 26px;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.strip-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#F1C7AE;}
.strip-icon{
  width:52px;height:52px;border-radius:50%;background:var(--brand-soft);color:var(--brand-deep);
  display:grid;place-items:center;font-weight:900;font-size:18px;flex:none;
}
.strip-body h3{font-size:18px;margin-bottom:6px;}
.strip-body p{font-size:15px;color:var(--muted);}
.strip-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;}
.tag{
  font-size:12px;font-weight:700;color:var(--ink);background:var(--ink-soft);
  border-radius:var(--r-sm);padding:4px 10px;
}

/* ===== 协助表单区 ===== */
.assist-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:56px;align-items:center;}
.assist-figure img{border-radius:var(--r-lg);width:100%;height:420px;object-fit:cover;box-shadow:var(--sh-2);}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:32px;box-shadow:var(--sh-2);
}
.form-card h3{font-size:22px;margin-bottom:8px;}
.form-card .hint{font-size:14px;color:var(--muted);margin-bottom:22px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:7px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:13px;font-weight:700;color:var(--text);}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:12px;background:#FFFDFB;
  padding:13px 14px;font-size:15px;transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.field textarea{min-height:110px;resize:vertical;}
.field input:hover,.field select:hover,.field textarea:hover{border-color:#D8D2CB;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--brand);background:#fff;box-shadow:0 0 0 4px rgba(242,97,30,.12);outline:none;
}
.form-actions{margin-top:22px;display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
.form-note{font-size:13px;color:var(--muted);}

/* ===== FAQ ===== */
.faq{max-width:880px;margin:0 auto;display:grid;gap:14px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;}
.faq-item:hover{border-color:#F1C7AE;box-shadow:var(--sh-1);}
.faq-item.is-open{border-color:var(--brand);box-shadow:var(--sh-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;font-size:17px;font-weight:700;color:var(--text);text-align:left;
}
.faq-item.is-open .faq-q{box-shadow:inset 4px 0 0 var(--brand);}
.faq-sign{
  width:28px;height:28px;border-radius:50%;background:var(--bg);color:var(--brand);
  display:grid;place-items:center;font-size:18px;font-weight:700;flex:none;transition:transform .25s ease,background-color .25s ease;
}
.faq-item.is-open .faq-sign{transform:rotate(45deg);background:var(--brand-soft);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a p{padding:0 22px 22px;font-size:15px;line-height:1.8;color:var(--body);}

/* ===== 结尾 CTA ===== */
.cta-band{background:var(--grad-ink);padding:88px 0;position:relative;overflow:hidden;}
.cta-band::after{
  content:"";position:absolute;left:-120px;bottom:-160px;width:420px;height:420px;border-radius:50%;
  background:var(--brand);opacity:.14;
}
.cta-card{
  position:relative;z-index:2;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);
  border-radius:32px;padding:52px 48px;text-align:center;
}
.cta-card h2{color:#fff;font-size:32px;margin-bottom:14px;}
.cta-card p{color:#BFD6D2;font-size:16px;max-width:620px;margin:0 auto;}
.cta-actions{display:flex;justify-content:center;gap:14px;margin-top:30px;flex-wrap:wrap;}

/* ===== 浮动 CTA ===== */
.float-cta{
  position:fixed;right:26px;bottom:26px;z-index:80;
  display:inline-flex;align-items:center;gap:9px;padding:14px 24px;border-radius:999px;
  background:var(--grad-brand);color:#fff;font-weight:800;font-size:15px;
  box-shadow:0 16px 34px rgba(242,97,30,.34);
  opacity:0;transform:translateY(14px);pointer-events:none;transition:opacity .25s ease,transform .25s ease;
}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-cta:hover{background:var(--brand-deep);background-image:none;transform:translateY(-2px);}

/* ===== 页脚 ===== */
.site-footer{background:var(--grad-ink);color:#CFDDD9;padding-top:72px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand .brand-text{color:#fff;}
.footer-brand p{font-size:14px;line-height:1.8;color:#A9C4C0;max-width:340px;}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:16px;}
.footer-col a{display:block;font-size:14px;color:#CFDDD9;padding:6px 0;}
.footer-col a:hover{color:var(--lime);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#9FBDB6;
}
.back-top{color:#CFDDD9;border-bottom:1px solid transparent;}
.back-top:hover{color:var(--lime);border-color:var(--lime);}
.footer-space{height:88px;}

/* ===== 骨架屏 ===== */
.skeleton{
  background:linear-gradient(90deg,#EFEBE6 25%,#F7F4F1 37%,#EFEBE6 63%);
  background-size:400% 100%;animation:sk 1.4s ease infinite;border-radius:10px;height:16px;
}
@keyframes sk{0%{background-position:100% 50%;}100%{background-position:0 50%;}}

/* ===== 响应式 ===== */
@media (max-width:1279px){
  .container{padding:0 32px;}
  .anchor-bar{padding:12px 32px;}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .timeline-wrap{grid-template-columns:1fr;gap:40px;}
  .assist-grid{grid-template-columns:1fr;gap:36px;}
  .assist-figure img{height:320px;}
}
@media (max-width:1023px){
  .main-nav{display:none;}
  .nav-toggle{display:flex;}
  .hero-cat h1{font-size:36px;}
  .section{padding:72px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .topbar-domain{display:none;}
  .topbar-note{font-size:12px;}
  .anchor-bar{top:56px;padding:10px 20px;gap:8px;}
  .chip{font-size:13px;padding:6px 13px;}
  .hero-cat{padding:44px 0 40px;}
  .hero-cat h1{font-size:30px;}
  .hero-cat .lead{font-size:15px;}
  .hero-badges{gap:10px;}
  .badge{font-size:13px;padding:8px 14px;}
  .section{padding:56px 0;}
  .section-head h2{font-size:25px;}
  .tl-item{padding-left:58px;}
  .tl-node{width:40px;height:40px;font-size:16px;border-width:3px;}
  .timeline::before{left:19px;}
  .tl-card{padding:18px;}
  .tl-card h3{font-size:17px;}
  .stats-band{padding:56px 0;}
  .stat-num{font-size:32px;}
  .strip-card{padding:20px;}
  .strip-icon{width:44px;height:44px;font-size:16px;}
  .form-card{padding:22px;}
  .form-grid{grid-template-columns:1fr;}
  .cta-band{padding:64px 0;}
  .cta-card{padding:34px 22px;border-radius:24px;}
  .cta-card h2{font-size:24px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:34px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .footer-space{height:76px;}
  .float-cta{right:16px;bottom:16px;padding:12px 20px;font-size:14px;}
}
@media (max-width:520px){
  .stats-grid{grid-template-columns:1fr;}
  .hero-cat h1{font-size:26px;}
  .brand-text{font-size:14px;}
  .nav-inner{gap:12px;}
  .faq-q{font-size:15px;padding:16px 16px;}
  .faq-a p{padding:0 16px 18px;}
}

/* roulang page: category3 */
:root{
  --brand:#F2611E;
  --brand-dark:#C94312;
  --brand-soft:#FFD9C6;
  --deep:#0E4F4A;
  --deep-2:#0A2B2A;
  --deep-soft:#E8F4F1;
  --lime:#C6F24E;
  --ink:#12171A;
  --text:#2B3238;
  --muted:#5C6670;
  --line:#E6E3DE;
  --bg:#FFF9F4;
  --card:#FFFFFF;
  --grad:linear-gradient(120deg,#F2611E,#E0405E);
  --grad-deep:linear-gradient(160deg,#0E4F4A,#0A2B2A);
  --r-lg:24px;
  --r-md:18px;
  --r-img:16px;
  --r-pill:999px;
  --sh-1:0 8px 24px rgba(18,23,26,.06);
  --sh-2:0 16px 40px rgba(18,23,26,.10);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  font-weight:400;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.01em;line-height:1.25}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 4px rgba(242,97,30,.14)}
.container{max-width:var(--container);margin:0 auto;padding:0 48px;width:100%}
.section{padding:104px 0}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{font-size:clamp(26px,3vw,36px);font-weight:900}
.section-sub{margin-top:14px;color:var(--muted);font-size:16px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--brand);background:var(--brand-soft);
  padding:6px 14px;border-radius:var(--r-pill);margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand)}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--deep);color:#CFDDD9;font-size:13px;min-height:36px;display:flex;align-items:center}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:36px;padding-top:6px;padding-bottom:6px}
.topbar-left{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.topbar-domain{color:#8FB7AF;letter-spacing:.02em}
.topbar-tip{color:#CFDDD9}
.topbar-cta{
  color:var(--lime);font-weight:700;white-space:nowrap;
  border-bottom:1px solid rgba(198,242,78,.45);padding-bottom:1px;transition:color .2s,border-color .2s;
}
.topbar-cta:hover{color:#fff;border-color:#fff}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(255,249,244,.96);
  backdrop-filter:saturate(140%) blur(6px);border-bottom:1px solid var(--line);
  transition:box-shadow .25s,padding .25s;
}
.site-header.is-stuck{box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;gap:28px;min-height:64px;transition:min-height .25s}
.site-header.is-stuck .header-inner{min-height:56px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;border-radius:12px;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-weight:900;font-size:18px;
  box-shadow:0 6px 16px rgba(242,97,30,.32);
}
.brand-text{font-size:17px;font-weight:900;color:var(--ink);letter-spacing:-.01em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto;flex-wrap:wrap}
.main-nav a{
  position:relative;padding:8px 12px;border-radius:10px;font-size:15px;font-weight:600;color:var(--text);
  transition:color .2s,background .2s;
}
.main-nav a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:3px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .25s;
}
.main-nav a:hover{color:var(--brand);background:rgba(242,97,30,.06)}
.main-nav a.is-active{color:var(--brand)}
.main-nav a.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);font-weight:700;line-height:1;
  padding:14px 26px;font-size:15px;border:1px solid transparent;
  transition:transform .2s,box-shadow .2s,background .2s,color .2s,border-color .2s;
}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(242,97,30,.28)}
.btn-primary:hover{background:linear-gradient(120deg,#C94312,#C93A55);transform:translateY(-2px);box-shadow:0 16px 34px rgba(242,97,30,.34)}
.btn-ghost{background:#fff;color:var(--deep);border-color:var(--line);box-shadow:var(--sh-1)}
.btn-ghost:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--brand-soft);color:var(--brand-dark)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-block{width:100%}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:.25s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.progress-track{height:3px;background:transparent}
.progress-track span{display:block;height:3px;width:0;background:var(--grad);transition:width .12s linear}
.anchor-bar{
  display:flex;gap:10px;overflow-x:auto;padding:10px 0 12px;scrollbar-width:none;
}
.anchor-bar::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;padding:7px 15px;border-radius:var(--r-pill);font-size:14px;font-weight:600;
  color:var(--muted);background:#fff;border:1px solid var(--line);transition:.2s;
}
.chip:hover{color:var(--brand);border-color:var(--brand-soft);transform:translateY(-1px)}
.chip.is-current{color:#fff;background:var(--grad);border-color:transparent;box-shadow:0 8px 18px rgba(242,97,30,.24)}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;inset:0;background:#fff;z-index:80;padding:28px 24px 40px;
  display:flex;flex-direction:column;gap:22px;overflow-y:auto;
  transform:translateX(100%);transition:transform .3s ease;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{width:40px;height:40px;border-radius:12px;border:1px solid var(--line);font-size:20px;color:var(--ink);background:#fff}
.drawer-nav{display:flex;flex-direction:column;gap:20px}
.drawer-nav a{font-size:18px;font-weight:700;color:var(--ink)}
.drawer-nav a.is-active{color:var(--brand)}
.drawer-cta{margin-top:auto;background:var(--deep-soft);border-radius:var(--r-md);padding:20px}
.drawer-cta p{font-size:14px;color:var(--muted);margin-bottom:14px}

/* ---------- 小 Hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;background:var(--bg);
  padding:64px 0 56px;border-bottom:1px solid var(--line);
}
.cat-hero::after{
  content:"";position:absolute;right:-140px;top:-160px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle at 35% 35%,rgba(242,97,30,.30),rgba(224,64,94,.14) 45%,rgba(255,249,244,0) 72%);
  pointer-events:none;
}
.cat-hero::before{
  content:"";position:absolute;left:-120px;bottom:-180px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(14,79,74,.12),rgba(255,249,244,0) 70%);pointer-events:none;
}
.hero-inner{position:relative;z-index:2;max-width:820px}
.hero-inner h1{font-size:clamp(30px,4.4vw,44px);font-weight:900;margin-top:6px}
.hero-lead{margin-top:16px;font-size:17px;color:var(--muted);max-width:640px}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.badge{
  display:inline-flex;align-items:center;gap:9px;padding:9px 18px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);box-shadow:var(--sh-1);font-size:14px;color:var(--text);font-weight:600;
}
.badge::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 3px rgba(198,242,78,.25)}
.badge strong{font-weight:900;font-size:17px;color:var(--ink);font-variant-numeric:tabular-nums}
.breadcrumb{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--muted);margin-bottom:18px;flex-wrap:wrap}
.breadcrumb a{color:var(--brand);font-weight:600}
.breadcrumb a:hover{text-decoration:underline}
.breadcrumb .sep{color:var(--line)}
.breadcrumb .current{color:var(--muted)}

/* ---------- 瀑布卡片 ---------- */
.masonry{display:grid;grid-template-columns:repeat(6,1fr);gap:24px}
.m-card{
  grid-column:span 2;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px;box-shadow:var(--sh-1);display:flex;flex-direction:column;gap:12px;
  transition:transform .25s,box-shadow .25s,border-color .25s;
}
.m-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--brand-soft)}
.m-card h3{font-size:19px;font-weight:800}
.m-card p{font-size:15px;color:var(--muted)}
.m-card--wide{grid-column:span 4}
.m-card--half{grid-column:span 3}
.m-card--tall{grid-column:span 2;grid-row:span 2;justify-content:space-between}
.m-card--media{padding:0;overflow:hidden}
.m-card--media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}
.m-card--media .m-body{padding:24px 26px 28px;display:flex;flex-direction:column;gap:12px}
.m-icon{
  width:44px;height:44px;border-radius:14px;background:var(--deep-soft);color:var(--deep);
  display:grid;place-items:center;font-weight:900;font-size:17px;
}
.m-card--wide .m-icon{background:var(--brand-soft);color:var(--brand-dark)}
.m-list{display:flex;flex-direction:column;gap:9px;margin-top:4px}
.m-list li{display:flex;gap:10px;font-size:15px;color:var(--text)}
.m-list li::before{content:"";flex:0 0 auto;width:7px;height:7px;border-radius:50%;background:var(--brand);margin-top:9px}
.m-tagline{margin-top:auto;font-size:14px;font-weight:700;color:var(--brand);display:inline-flex;align-items:center;gap:6px}
.m-tagline::after{content:"→";transition:transform .2s}
.m-card:hover .m-tagline::after{transform:translateX(4px)}

/* ---------- 步骤横条卡 ---------- */
.step-cards{display:flex;flex-direction:column;gap:18px}
.step-card{
  display:flex;gap:22px;align-items:flex-start;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);padding:24px 28px;box-shadow:var(--sh-1);transition:transform .25s,box-shadow .25s;
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.step-num{
  flex:0 0 auto;width:44px;height:44px;border-radius:50%;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-weight:900;font-size:18px;font-variant-numeric:tabular-nums;
  box-shadow:0 8px 18px rgba(242,97,30,.26);
}
.step-body h3{font-size:19px;margin-bottom:6px}
.step-body p{font-size:15px;color:var(--muted)}

/* ---------- 数据区 ---------- */
.proof{background:var(--grad-deep);color:#DCE9E6;padding:96px 0}
.proof .section-head h2{color:#fff}
.proof .eyebrow{background:rgba(198,242,78,.14);color:var(--lime)}
.proof .eyebrow::before{background:var(--lime)}
.proof-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:48px;align-items:center}
.proof-nums{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.num-block .num{font-size:clamp(36px,4.6vw,54px);font-weight:900;color:#fff;font-variant-numeric:tabular-nums;line-height:1.1}
.num-block .num span{font-size:.42em;color:var(--lime);margin-left:6px;font-weight:800}
.num-block p{margin-top:8px;font-size:14px;color:#9FC0BA}
.proof-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.proof-card{background:#fff;border-radius:var(--r-md);padding:22px;box-shadow:0 14px 36px rgba(0,0,0,.18)}
.proof-card h3{font-size:16px;margin-bottom:8px}
.proof-card p{font-size:14px;color:var(--muted)}
.proof-source{margin-top:34px;font-size:13px;color:#8FB7AF}

/* ---------- 对比表 ---------- */
.compare-wrap{overflow-x:auto;border-radius:var(--r-lg);border:1px solid var(--line);box-shadow:var(--sh-1);background:#fff}
.compare-table{min-width:640px}
.compare-table th,.compare-table td{padding:16px 20px;text-align:left;font-size:15px;border-bottom:1px solid var(--line)}
.compare-table thead th{background:var(--deep);color:#fff;font-weight:800;font-size:15px}
.compare-table thead th:first-child{background:#0A3B37}
.compare-table tbody tr:nth-child(even){background:#FFF9F4}
.compare-table tbody tr:last-child td{border-bottom:0}
.compare-table td:first-child{font-weight:700;color:var(--ink);width:180px}
.compare-table td strong{color:var(--brand-dark)}

/* ---------- 标签云 + 通道 ---------- */
.tag-layout{display:grid;grid-template-columns:1.25fr 1fr;gap:32px;align-items:start}
.tag-cloud{display:flex;flex-wrap:wrap;gap:12px}
.tag{
  display:inline-flex;align-items:center;padding:9px 16px;border-radius:8px;font-size:14px;font-weight:600;
  background:var(--deep-soft);color:var(--deep);transition:.2s;border:1px solid transparent;
}
.tag:hover{background:#fff;border-color:var(--brand-soft);color:var(--brand-dark);transform:translateY(-2px)}
.tag--hot{background:var(--brand-soft);color:var(--brand-dark)}
.pass-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-1);
  border-top:4px solid var(--brand);
}
.pass-card h3{font-size:20px;margin-bottom:12px}
.pass-card p{font-size:15px;color:var(--muted);margin-bottom:18px}
.pass-list{display:flex;flex-direction:column;gap:10px;margin-bottom:22px}
.pass-list li{display:flex;gap:10px;font-size:15px}
.pass-list li::before{content:"✓";color:var(--brand);font-weight:900}

/* ---------- 图片横幅 ---------- */
.banner{
  position:relative;border-radius:28px;overflow:hidden;min-height:280px;display:flex;align-items:center;
  background-image:linear-gradient(120deg,rgba(10,43,42,.88),rgba(14,79,74,.66)),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;box-shadow:var(--sh-2);
}
.banner-inner{padding:48px 52px;max-width:660px}
.banner-inner h2{color:#fff;font-size:clamp(24px,3vw,32px);font-weight:900}
.banner-inner p{margin-top:14px;color:#DCE9E6;font-size:16px}
.banner-actions{display:flex;gap:14px;margin-top:26px;flex-wrap:wrap}
.btn-light{background:#fff;color:var(--deep)}
.btn-light:hover{transform:translateY(-2px);box-shadow:var(--sh-2);color:var(--brand-dark)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-outline-light:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}

/* ---------- FAQ ---------- */
.faq-list{max-width:880px;display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-img);box-shadow:var(--sh-1);
  overflow:hidden;transition:border-color .2s,box-shadow .2s;
}
.faq-item[open]{border-color:var(--brand-soft);box-shadow:var(--sh-2);border-left:4px solid var(--brand)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 24px;display:flex;align-items:center;justify-content:space-between;gap:18px;
  font-size:16px;font-weight:700;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-plus{flex:0 0 auto;width:26px;height:26px;position:relative;transition:transform .25s}
.faq-plus::before,.faq-plus::after{content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;transform:translate(-50%,-50%)}
.faq-plus::before{width:14px;height:2px}
.faq-plus::after{width:2px;height:14px}
.faq-item[open] .faq-plus{transform:rotate(45deg)}
.faq-body{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--muted)}

/* ---------- 结尾 CTA ---------- */
.cta-band{background:var(--grad-deep);padding:88px 0}
.cta-card{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:32px;
  padding:52px 48px;text-align:center;
}
.cta-card h2{color:#fff;font-size:clamp(24px,3.2vw,34px);font-weight:900}
.cta-card p{margin-top:14px;color:#CFDDD9;font-size:16px}
.cta-actions{display:flex;gap:14px;justify-content:center;margin-top:30px;flex-wrap:wrap}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--grad-deep);color:#CFDDD9;padding-top:72px;position:relative}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand .brand-text{color:#fff}
.footer-brand p{margin-top:16px;font-size:14px;color:#9FC0BA;max-width:320px}
.footer-col h3{color:#fff;font-size:15px;margin-bottom:16px;font-weight:800}
.footer-col a{display:block;font-size:14px;color:#CFDDD9;padding:6px 0;transition:color .2s}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:22px 0 28px;display:flex;align-items:center;
  justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8FB7AF;
}
.back-top{color:var(--lime);font-weight:700}
.footer-space{height:88px}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:70;
  display:inline-flex;align-items:center;gap:10px;padding:15px 26px;border-radius:var(--r-pill);
  background:var(--grad);color:#fff;font-weight:800;font-size:15px;
  box-shadow:0 16px 36px rgba(242,97,30,.36);
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity .28s,transform .28s,visibility .28s;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{transform:translateY(-2px)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 32px}
  .section{padding:88px 0}
  .masonry{grid-template-columns:repeat(4,1fr)}
  .m-card--wide{grid-column:span 4}
  .m-card--half{grid-column:span 2}
  .m-card--tall{grid-column:span 2;grid-row:span 1}
  .proof-grid{grid-template-columns:1fr;gap:40px}
}
@media (max-width:1023px){
  .main-nav{display:none}
  .nav-toggle{display:flex}
  .header-actions .btn-sm{display:none}
  .tag-layout{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .topbar-tip{display:none}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .cat-hero{padding:44px 0}
  .masonry{grid-template-columns:1fr;gap:16px}
  .m-card,.m-card--wide,.m-card--half,.m-card--tall{grid-column:span 1}
  .hero-badges{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
  .badge{justify-content:flex-start}
  .proof{padding:64px 0}
  .proof-nums,.proof-cards{grid-template-columns:1fr 1fr;gap:16px}
  .banner-inner{padding:32px 24px}
  .cta-card{padding:36px 22px}
  .cta-actions .btn,.banner-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .float-cta{right:16px;bottom:16px;padding:13px 20px;font-size:14px}
  .footer-space{height:80px}
  .step-card{padding:20px;gap:16px;flex-direction:column}
}
@media (max-width:479px){
  .proof-nums,.proof-cards{grid-template-columns:1fr}
  .brand-text{font-size:15px}
}