/* roulang page: index */
:root{
  --brand:#12B886;
  --brand-deep:#0B8F6A;
  --accent-violet:#6C5CE7;
  --signal:#FF7A2F;
  --bg:#F5F8F7;
  --surface:#FFFFFF;
  --ink:#0F1A17;
  --text:#1C2A26;
  --muted:#5F726C;
  --line:rgba(15,26,23,.08);
  --grad:linear-gradient(135deg,#12B886 0%,#0B8F6A 55%,#6C5CE7 130%);
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-1:0 6px 20px rgba(15,26,23,.06);
  --sh-2:0 14px 34px rgba(15,26,23,.12);
  --sh-3:0 24px 60px rgba(15,26,23,.16);
  --sect:92px;
}
*,*::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","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-deep);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-deep);text-decoration:underline;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.2px;}
h1{font-size:40px;line-height:1.3;font-weight:700;letter-spacing:-.5px;}
h2{font-size:27px;line-height:1.4;}
h3{font-size:19px;line-height:1.5;font-weight:600;}
h4{font-size:16px;font-weight:600;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(18,184,134,.45);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:var(--sect) 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.section-head p{margin-top:10px;color:var(--muted);font-size:15px;max-width:62ch;}
.section-more{font-size:14px;font-weight:600;color:var(--brand-deep);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--brand-deep);text-transform:uppercase;
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--grad);}

/* 顶部信息条 */
.topbar{background:var(--ink);color:rgba(255,255,255,.82);font-size:13px;line-height:1.6;}
.topbar-inner{
  height:36px;display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.topbar-text{
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.topbar-link{color:#fff;font-weight:600;white-space:nowrap;font-size:13px;}
.topbar-link:hover{color:var(--brand);text-decoration:none;}

/* 主导航 */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--surface);
  border-bottom:1px solid var(--line);
  box-shadow:0 2px 14px rgba(15,26,23,.04);
}
.header-inner{display:flex;align-items:center;gap:28px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;text-decoration:none;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:var(--grad);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;
  box-shadow:0 8px 18px rgba(12,150,110,.28);
}
.brand-text{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:-.3px;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px;}
.nav-link{
  position:relative;display:inline-block;padding:10px 14px;border-radius:var(--r-sm);
  font-size:15px;color:var(--text);font-weight:500;white-space:nowrap;
}
.nav-link:hover{color:var(--brand-deep);background:rgba(18,184,134,.07);text-decoration:none;}
.nav-link.active{color:var(--brand-deep);font-weight:600;}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  border-radius:2px;background:var(--grad);
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease;
  text-decoration:none;line-height:1;
}
.btn:hover{text-decoration:none;transform:translateY(-1px);}
.btn:active{transform:translateY(1px);}
.btn-primary-brand{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(12,150,110,.26);}
.btn-primary-brand:hover{color:#fff;box-shadow:0 16px 32px rgba(12,150,110,.34);}
.btn-signal{background:var(--signal);color:#fff;box-shadow:0 10px 24px rgba(255,122,47,.28);}
.btn-signal:hover{color:#fff;background:#ff8c4a;}
.btn-ghost{background:transparent;color:var(--brand-deep);border-color:rgba(18,184,134,.45);}
.btn-ghost:hover{background:rgba(18,184,134,.08);color:var(--brand-deep);}
.btn-light-ghost{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.4);}
.btn-light-ghost:hover{background:rgba(255,255,255,.24);color:#fff;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);
  background:var(--surface);flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .2s ease,opacity .2s ease;}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg);}
body.nav-open .nav-toggle span:nth-child(2){opacity:0;}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* Hero */
.hero{position:relative;padding:76px 0 84px;overflow:hidden;}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(circle at 82% 18%,rgba(108,92,231,.16),transparent 46%),
                   radial-gradient(circle at 12% 78%,rgba(18,184,134,.14),transparent 42%);
  pointer-events:none;
}
.hero-grid{
  position:relative;display:grid;grid-template-columns:6fr 5fr;gap:56px;align-items:center;
}
.hero-badge-line{display:inline-flex;align-items:center;gap:10px;margin-bottom:20px;}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;line-height:1.4;
  background:rgba(18,184,134,.1);color:var(--brand-deep);
  border:1px solid rgba(18,184,134,.22);
}
.pill-violet{background:rgba(108,92,231,.1);color:#5646c9;border-color:rgba(108,92,231,.24);}
.pill-signal{background:rgba(255,122,47,.12);color:#d95f16;border-color:rgba(255,122,47,.28);}
.hero h1{margin-bottom:18px;}
.hero h1 em{font-style:normal;color:var(--brand-deep);}
.hero-lead{font-size:17px;color:var(--muted);max-width:56ch;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;}
.stat-badge{
  display:inline-flex;align-items:baseline;gap:8px;
  padding:10px 16px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.9);border:1px solid rgba(18,184,134,.24);
  box-shadow:var(--sh-1);font-size:13px;color:var(--muted);
}
.stat-badge b{
  font-size:20px;font-weight:800;color:var(--ink);
  font-variant-numeric:tabular-nums;letter-spacing:-.4px;
}
.stat-badge.is-signal b{color:var(--signal);}
.hero-visual{position:relative;}
.hero-visual::after{
  content:"";position:absolute;right:-26px;top:-26px;width:180px;height:180px;border-radius:50%;
  background:var(--grad);opacity:.18;filter:blur(6px);z-index:0;
}
.hero-figure{
  position:relative;z-index:1;border-radius:24px;overflow:hidden;
  box-shadow:var(--sh-3);background:var(--surface);
  background-image:linear-gradient(rgba(255,255,255,.06),rgba(255,255,255,.06)),
                   repeating-linear-gradient(0deg,rgba(15,26,23,.045) 0 1px,transparent 1px 22px),
                   repeating-linear-gradient(90deg,rgba(15,26,23,.045) 0 1px,transparent 1px 22px);
}
.hero-figure img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.hero-float{
  position:absolute;left:-18px;bottom:26px;z-index:2;
  background:var(--surface);border-radius:var(--r-md);border:1px solid var(--line);
  padding:14px 18px;box-shadow:var(--sh-2);max-width:230px;
}
.hero-float span{display:block;font-size:13px;color:var(--muted);}
.hero-float b{display:block;font-size:24px;font-weight:800;color:var(--brand-deep);font-variant-numeric:tabular-nums;}

/* 徽章带 */
.badge-band{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.badge-band-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:34px 0;}
.band-item{display:flex;flex-direction:column;gap:4px;padding-left:18px;border-left:3px solid transparent;
  border-image:linear-gradient(180deg,var(--brand),var(--accent-violet)) 1;}
.band-item strong{font-size:32px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;letter-spacing:-.6px;}
.band-item span{font-size:14px;color:var(--muted);}

/* 三步上手 */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;}
.step{
  position:relative;padding:0 34px 0 22px;border-left:3px solid var(--brand);
}
.step + .step{border-left:3px solid rgba(18,184,134,.35);}
.step + .step::before{
  content:"";position:absolute;left:-1px;top:6px;bottom:6px;width:0;
  border-left:1px dashed rgba(15,26,23,.16);
}
.step-num{
  width:46px;height:46px;border-radius:50%;background:var(--grad);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:17px;
  margin-bottom:16px;box-shadow:0 10px 22px rgba(12,150,110,.26);
  font-variant-numeric:tabular-nums;
}
.step h3{margin-bottom:8px;}
.step p{color:var(--muted);font-size:15px;}

/* 案例证明 */
.case-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;}
.case-main{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease;
}
.case-main:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.case-main-figure{position:relative;}
.case-main-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.case-tag{
  position:absolute;left:20px;top:20px;padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(15,26,23,.78);color:#fff;font-size:13px;font-weight:600;
}
.case-main-body{padding:26px 28px 30px;}
.case-main-body h3{margin-bottom:10px;font-size:21px;}
.case-main-body p{color:var(--muted);font-size:15px;margin-bottom:18px;}
.case-side{display:grid;grid-template-rows:1fr 1fr;gap:24px;}
.case-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px 26px;box-shadow:var(--sh-1);display:flex;flex-direction:column;gap:10px;
  transition:transform .2s ease,box-shadow .2s ease;
}
.case-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.case-card h3{font-size:18px;}
.case-card p{color:var(--muted);font-size:14px;}
.case-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:13px;color:var(--muted);}
.case-meta b{color:var(--signal);font-size:16px;font-weight:800;font-variant-numeric:tabular-nums;}

/* 资讯 */
.news-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.news-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);height:100%;
  transition:transform .2s ease,box-shadow .2s ease;display:flex;flex-direction:column;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.news-link{display:flex;flex-direction:column;height:100%;color:inherit;text-decoration:none;}
.news-link:hover{text-decoration:none;color:inherit;}
.news-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.news-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-tag{
  align-self:flex-start;padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(108,92,231,.1);color:#5646c9;font-size:12px;font-weight:600;
  border:1px solid rgba(108,92,231,.2);
}
.news-title{font-size:16px;font-weight:600;line-height:1.55;color:var(--ink);}
.news-desc{font-size:14px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-time{margin-top:auto;font-size:13px;color:var(--muted);}
.news-empty{
  background:var(--surface);border:1px dashed rgba(18,184,134,.4);border-radius:var(--r-lg);
  padding:56px 24px;text-align:center;color:var(--muted);
}
.news-empty svg{width:52px;height:52px;margin-bottom:16px;color:var(--brand);}
.news-empty p{margin-bottom:18px;font-size:15px;}

/* FAQ */
.accordion-brand .accordion-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  margin-bottom:14px;overflow:hidden;box-shadow:var(--sh-1);
}
.accordion-brand .accordion-button{
  background:var(--surface);color:var(--ink);font-size:17px;font-weight:600;
  padding:22px 26px;border:0;box-shadow:none;gap:14px;
}
.accordion-brand .accordion-button:not(.collapsed){color:var(--brand-deep);box-shadow:none;background:var(--surface);}
.accordion-brand .accordion-button:focus{box-shadow:0 0 0 3px rgba(18,184,134,.28);}
.accordion-brand .accordion-button::after{
  content:"";flex:0 0 20px;width:20px;height:20px;
  background-image:linear-gradient(var(--brand),var(--brand)),linear-gradient(var(--brand),var(--brand));
  background-size:100% 2px,2px 100%;
  background-position:center,center;background-repeat:no-repeat;
  transition:transform .25s ease;margin-left:auto;
}
.accordion-brand .accordion-button:not(.collapsed)::after{transform:rotate(135deg);}
.accordion-brand .accordion-body{padding:0 26px 26px;color:var(--muted);font-size:16px;line-height:1.8;max-width:72ch;}
.accordion-brand .accordion-item:has(.accordion-button:not(.collapsed)){border-left:3px solid var(--brand);}

/* CTA */
.cta-band{
  position:relative;border-radius:24px;overflow:hidden;padding:52px 48px;
  background:var(--grad);color:#fff;box-shadow:var(--sh-3);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.12) 0 12px,transparent 12px 26px);
  opacity:.5;
}
.cta-inner{position:relative;display:grid;grid-template-columns:1.2fr 1fr;gap:40px;align-items:center;}
.cta-inner h2{color:#fff;margin-bottom:12px;}
.cta-inner p{color:rgba(255,255,255,.9);font-size:15px;max-width:52ch;}
.cta-form{display:flex;gap:12px;flex-wrap:wrap;background:rgba(255,255,255,.14);padding:14px;border-radius:var(--r-md);}
.cta-form input{
  flex:1 1 200px;min-height:48px;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.5);
  background:#fff;color:var(--text);padding:0 16px;font-size:15px;
}
.cta-form input::placeholder{color:#8a9a95;}
.cta-form input:focus{outline:3px solid rgba(255,255,255,.55);outline-offset:0;border-color:var(--brand);}
.cta-note{font-size:13px;color:rgba(255,255,255,.85);margin-top:12px;}
.cta-success{display:none;font-size:14px;color:#fff;margin-top:12px;font-weight:600;}
.cta-success.show{display:block;}

/* 页脚 */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:var(--sect);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-brand span{color:#fff;font-size:17px;font-weight:700;}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:36ch;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:rgba(255,255,255,.7);font-size:14px;}
.footer-col a:hover{color:var(--brand);text-decoration:none;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0 30px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

@media (max-width:1199px){
  h1{font-size:36px;}
  .hero-grid{gap:40px;}
}
@media (max-width:991px){
  :root{--sect:68px;}
  h1{font-size:30px;}
  h2{font-size:24px;}
  .nav-toggle{display:flex;}
  .main-nav{
    position:fixed;top:0;right:0;bottom:0;width:min(320px,84vw);
    background:var(--surface);flex-direction:column;align-items:stretch;gap:6px;
    padding:88px 20px 28px;box-shadow:var(--sh-3);z-index:70;
    transform:translateX(102%);transition:transform .28s ease;margin-left:0;overflow-y:auto;
  }
  body.nav-open .main-nav{transform:translateX(0);}
  body.nav-open::after{
    content:"";position:fixed;inset:0;background:rgba(15,26,23,.42);z-index:65;
  }
  .nav-link{padding:14px 12px;font-size:16px;border-radius:var(--r-sm);}
  .nav-link.active::after{display:none;}
  .nav-link.active{background:rgba(18,184,134,.1);}
  .header-actions .btn-ghost{display:none;}
  .hero{padding:52px 0 60px;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-visual{order:-1;}
  .hero-figure img{aspect-ratio:16/10;}
  .hero-float{left:auto;right:16px;bottom:-14px;}
  .badge-band-grid{grid-template-columns:repeat(2,1fr);gap:22px;padding:28px 0;}
  .steps{grid-template-columns:1fr;gap:26px;}
  .step{padding:0 0 0 20px;}
  .step + .step::before{display:none;}
  .case-grid{grid-template-columns:1fr;}
  .case-side{grid-template-rows:auto auto;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .cta-band{padding:40px 26px;border-radius:var(--r-lg);}
  .cta-inner{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px;}
}
@media (max-width:575px){
  .container{padding:0 16px;}
  h1{font-size:26px;line-height:1.35;}
  h2{font-size:21px;}
  .brand-text{font-size:16px;}
  .header-inner{gap:14px;height:64px;}
  .topbar-text{display:none;}
  .topbar-inner{justify-content:flex-end;}
  .hero-actions .btn{width:100%;}
  .hero-stats{gap:10px;}
  .stat-badge{flex:1 1 44%;justify-content:center;}
  .badge-band-grid{grid-template-columns:1fr;gap:18px;}
  .band-item strong{font-size:28px;}
  .news-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .cta-form input{flex:1 1 100%;}
  .cta-form .btn{width:100%;}
}

/* roulang page: category1 */
:root{
  --brand:#12B886;
  --brand-deep:#0B8F6A;
  --accent-violet:#6C5CE7;
  --signal:#FF7A2F;
  --bg:#F5F8F7;
  --surface:#FFFFFF;
  --ink:#0F1A17;
  --text:#1C2A26;
  --muted:#5F726C;
  --line:rgba(15,26,23,.08);
  --grad:linear-gradient(135deg,#12B886 0%,#0B8F6A 55%,#6C5CE7 130%);
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-1:0 6px 20px rgba(15,26,23,.06);
  --sh-2:0 14px 34px rgba(15,26,23,.12);
  --sh-3:0 24px 60px rgba(15,26,23,.16);
  --sp-section:92px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-deep);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-deep);text-decoration:underline;}
button,input{font:inherit;}
:focus-visible{outline:3px solid rgba(18,184,134,.45);outline-offset:2px;border-radius:6px;}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.2px;}
h1{font-size:40px;line-height:1.3;font-weight:700;letter-spacing:-.5px;}
h2{font-size:27px;line-height:1.4;font-weight:700;}
h3{font-size:19px;line-height:1.5;font-weight:600;}
h4{font-size:16px;line-height:1.5;font-weight:600;}
p{margin:0 0 1.1em;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.section{padding:var(--sp-section) 0;}
.section-tight{padding:64px 0;}
.section-head{margin-bottom:36px;}
.section-head p{color:var(--muted);max-width:72ch;margin-top:10px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  color:var(--brand-deep);
  background:rgba(18,184,134,.1);
  border:1px solid rgba(18,184,134,.25);
  border-radius:var(--r-pill);
  padding:5px 14px;
  margin-bottom:16px;
}
.eyebrow i{color:var(--brand);}

/* 顶部信息条 */
.topbar{
  background:var(--ink);
  color:rgba(255,255,255,.78);
  font-size:13px;
  line-height:1.6;
  min-height:36px;
  display:flex;
  align-items:center;
}
.topbar .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.topbar-left{
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.topbar-left strong{color:#fff;font-weight:600;}
.topbar-right a{
  color:#7FE3C2;
  font-weight:600;
  white-space:nowrap;
}
.topbar-right a:hover{color:#fff;text-decoration:none;}

/* 主导航 */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  box-shadow:0 2px 12px rgba(15,26,23,.04);
}
.header-inner{
  min-height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  text-decoration:none;
}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:38px;height:38px;
  border-radius:12px;
  background:var(--grad);
  color:#fff;
  font-weight:700;
  font-size:19px;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 6px 16px rgba(11,143,106,.28);
}
.brand-text{
  font-size:19px;
  font-weight:700;
  color:var(--ink);
  letter-spacing:-.3px;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  flex-wrap:wrap;
}
.nav-link{
  position:relative;
  padding:10px 14px;
  font-size:15px;
  color:var(--text);
  font-weight:500;
  border-radius:10px;
  white-space:nowrap;
}
.nav-link:hover{
  color:var(--brand-deep);
  background:rgba(18,184,134,.07);
  text-decoration:none;
}
.nav-link.active{color:var(--brand-deep);font-weight:600;}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
}
.header-actions{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:10px 22px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease;
  text-decoration:none;
}
.btn:hover{text-decoration:none;transform:translateY(-1px);}
.btn:active{transform:translateY(1px);}
.btn-primary-brand{
  background:var(--signal);
  color:#fff;
  box-shadow:0 8px 20px rgba(255,122,47,.28);
}
.btn-primary-brand:hover{background:#FF8C4A;color:#fff;box-shadow:0 12px 26px rgba(255,122,47,.34);}
.btn-ghost{
  background:transparent;
  color:var(--brand-deep);
  border-color:rgba(18,184,134,.45);
}
.btn-ghost:hover{background:rgba(18,184,134,.09);color:var(--brand-deep);}
.btn-solid-brand{
  background:var(--grad);
  color:#fff;
  box-shadow:0 10px 24px rgba(11,143,106,.26);
}
.btn-solid-brand:hover{color:#fff;box-shadow:0 14px 30px rgba(11,143,106,.32);}
.btn-white{
  background:#fff;
  color:var(--brand-deep);
}
.btn-white:hover{background:#fff;color:var(--brand-deep);}
.nav-toggle{
  display:none;
  width:46px;height:46px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  padding:0;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.nav-toggle span{
  display:block;
  width:20px;height:2px;
  border-radius:2px;
  background:var(--ink);
}

/* Hero */
.hero{
  position:relative;
  padding:72px 0 84px;
  background:
    radial-gradient(circle at 88% 12%,rgba(108,92,231,.14),transparent 55%),
    radial-gradient(circle at 8% 84%,rgba(18,184,134,.14),transparent 55%),
    var(--bg);
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(15,26,23,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(15,26,23,.045) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 78%);
  pointer-events:none;
}
.hero-grid{
  position:relative;
  display:grid;
  grid-template-columns:6fr 5fr;
  gap:48px;
  align-items:center;
}
.hero-copy h1{margin-bottom:18px;}
.hero-copy .lead{
  font-size:17px;
  color:var(--muted);
  line-height:1.85;
  max-width:56ch;
  margin-bottom:26px;
}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:30px;}
.hero-badges{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
}
.stat-badge{
  display:inline-flex;
  align-items:baseline;
  gap:8px;
  background:var(--surface);
  border:1px solid rgba(18,184,134,.28);
  border-radius:var(--r-pill);
  padding:9px 18px;
  box-shadow:var(--sh-1);
}
.stat-badge b{
  font-size:20px;
  font-weight:800;
  color:var(--brand-deep);
  font-variant-numeric:tabular-nums;
}
.stat-badge b.is-signal{color:var(--signal);}
.stat-badge span{font-size:13px;color:var(--muted);}
.hero-visual{
  position:relative;
  border-radius:24px;
  overflow:hidden;
  box-shadow:var(--sh-3);
  aspect-ratio:16/11;
  background:var(--ink);
}
.hero-visual img{
  width:100%;height:100%;
  object-fit:cover;
}
.hero-visual::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(140deg,rgba(18,184,134,.34),rgba(11,143,106,.12) 48%,rgba(108,92,231,.34));
  mix-blend-mode:multiply;
}
.hero-visual .float-card{
  position:absolute;
  left:20px;bottom:20px;
  z-index:2;
  background:rgba(255,255,255,.94);
  border-radius:var(--r-md);
  padding:14px 18px;
  box-shadow:var(--sh-2);
  min-width:190px;
}
.hero-visual .float-card strong{
  display:block;
  font-size:26px;
  font-weight:800;
  color:var(--ink);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.hero-visual .float-card span{font-size:13px;color:var(--muted);}

/* 主内容两栏 */
.layout-2col{
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:44px;
  align-items:start;
}
.article-body{
  background:var(--surface);
  border-radius:var(--r-lg);
  padding:40px 42px;
  box-shadow:var(--sh-1);
}
.article-body > section + section{margin-top:44px;padding-top:40px;border-top:1px solid var(--line);}
.article-body h2{margin-bottom:16px;}
.article-body h3{margin:26px 0 10px;}
.article-body p{color:var(--text);}
.article-body ul{margin:0 0 1.1em;padding-left:0;list-style:none;}
.article-body ul li{
  position:relative;
  padding-left:26px;
  margin-bottom:10px;
}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:6px;top:.72em;
  width:8px;height:8px;
  border-radius:50%;
  background:var(--brand);
}
.quote-block{
  border-left:4px solid var(--brand);
  background:rgba(18,184,134,.06);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  padding:18px 22px;
  margin:22px 0;
  color:var(--ink);
  font-size:15px;
}
.key-list{
  background:rgba(108,92,231,.05);
  border:1px solid rgba(108,92,231,.18);
  border-radius:var(--r-md);
  padding:24px 26px 12px;
  margin-top:26px;
}
.key-list h3{margin-top:0;margin-bottom:14px;}
.key-list ul li::before{background:var(--accent-violet);}
.inline-cta{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-weight:600;
  color:var(--brand-deep);
  margin-top:6px;
}
.inline-cta:hover{text-decoration:underline;}

/* 锚点侧栏 */
.side-col{display:flex;flex-direction:column;gap:20px;}
.anchor-panel{
  position:sticky;
  top:96px;
  background:var(--surface);
  border-radius:var(--r-lg);
  padding:26px 24px;
  box-shadow:var(--sh-1);
}
.anchor-panel h4{
  font-size:14px;
  letter-spacing:.4px;
  color:var(--muted);
  text-transform:none;
  margin-bottom:14px;
}
.anchor-panel ul{list-style:none;margin:0;padding:0;}
.anchor-panel li + li{margin-top:2px;}
.anchor-panel a{
  display:block;
  padding:9px 12px;
  border-radius:10px;
  font-size:14.5px;
  color:var(--text);
  border-left:3px solid transparent;
}
.anchor-panel a:hover{
  background:rgba(18,184,134,.08);
  color:var(--brand-deep);
  border-left-color:var(--brand);
  text-decoration:none;
}
.side-note{
  background:var(--surface);
  border-radius:var(--r-lg);
  padding:24px;
  box-shadow:var(--sh-1);
  border-top:3px solid var(--brand);
}
.side-note h4{margin-bottom:8px;}
.side-note p{font-size:14px;color:var(--muted);margin-bottom:14px;line-height:1.75;}
.side-note .stat-badge{margin-top:6px;}

/* 时段表 */
.slot-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
  margin-top:26px;
}
.slot-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:22px;
  box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.slot-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.slot-card .tag{
  display:inline-block;
  font-size:12.5px;
  font-weight:600;
  color:var(--brand-deep);
  background:rgba(18,184,134,.1);
  border-radius:var(--r-pill);
  padding:3px 12px;
  margin-bottom:12px;
}
.slot-card h3{font-size:17px;margin-bottom:8px;}
.slot-card p{font-size:14px;color:var(--muted);line-height:1.75;margin:0;}
.slot-card .num{
  font-size:30px;
  font-weight:800;
  color:var(--ink);
  font-variant-numeric:tabular-nums;
  line-height:1.1;
  display:block;
  margin-bottom:6px;
}

/* 数据条 */
.metric-strip{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;
  margin-top:28px;
}
.metric-box{
  background:var(--surface);
  border-radius:var(--r-md);
  padding:22px 20px;
  box-shadow:var(--sh-1);
  border-left:3px solid var(--accent-violet);
}
.metric-box b{
  display:block;
  font-size:32px;
  font-weight:800;
  color:var(--ink);
  font-variant-numeric:tabular-nums;
  line-height:1.1;
}
.metric-box b.is-signal{color:var(--signal);}
.metric-box span{font-size:13.5px;color:var(--muted);}

/* FAQ */
.faq-wrap{max-width:900px;margin:0 auto;}
.accordion-item{
  background:var(--surface);
  border:0;
  border-radius:var(--r-lg);
  margin-bottom:14px;
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.accordion-button{
  background:var(--surface);
  color:var(--ink);
  font-size:16.5px;
  font-weight:600;
  padding:22px 26px;
  border:0;
  border-left:3px solid transparent;
  box-shadow:none;
}
.accordion-button:not(.collapsed){
  background:var(--surface);
  color:var(--brand-deep);
  border-left-color:var(--brand);
  box-shadow:none;
}
.accordion-button:focus{box-shadow:none;outline:3px solid rgba(18,184,134,.35);outline-offset:-3px;}
.accordion-button::after{
  content:"\2b";
  font-family:inherit;
  font-size:20px;
  font-weight:600;
  background-image:none;
  width:24px;height:24px;
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--brand-deep);
  transition:transform .25s ease;
  transform:rotate(0deg);
}
.accordion-button:not(.collapsed)::after{transform:rotate(45deg);}
.accordion-body{
  padding:0 26px 24px;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  max-width:72ch;
}

/* CTA */
.cta-band{
  position:relative;
  background:var(--grad);
  border-radius:24px;
  padding:48px 46px;
  overflow:hidden;
  color:#fff;
  box-shadow:var(--sh-3);
}
.cta-band::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.09) 0 12px,transparent 12px 26px);
  pointer-events:none;
}
.cta-inner{
  position:relative;
  display:grid;
  grid-template-columns:1.2fr .8fr;
  gap:36px;
  align-items:center;
}
.cta-inner h2{color:#fff;margin-bottom:12px;}
.cta-inner p{color:rgba(255,255,255,.88);margin-bottom:0;max-width:52ch;}
.cta-form{
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.3);
  border-radius:var(--r-lg);
  padding:22px;
  backdrop-filter:blur(4px);
}
.cta-form label{
  display:block;
  font-size:13.5px;
  font-weight:600;
  margin-bottom:8px;
  color:#fff;
}
.cta-form input{
  width:100%;
  min-height:48px;
  border-radius:var(--r-sm);
  border:1px solid transparent;
  background:#fff;
  padding:10px 16px;
  color:var(--text);
  margin-bottom:14px;
}
.cta-form input:focus{
  outline:3px solid rgba(255,255,255,.6);
  outline-offset:0;
  border-color:var(--brand-deep);
}
.cta-form .btn{width:100%;}

/* 页脚 */
.site-footer{
  background:var(--ink);
  color:rgba(255,255,255,.72);
  padding:66px 0 24px;
  margin-top:var(--sp-section);
  font-size:14.5px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.1fr;
  gap:36px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:19px;
  font-weight:700;
  margin-bottom:16px;
}
.footer-about{color:rgba(255,255,255,.6);line-height:1.8;margin:0;max-width:44ch;}
.site-footer h4{
  color:#fff;
  font-size:15px;
  margin-bottom:14px;
  font-weight:600;
}
.site-footer ul{list-style:none;margin:0;padding:0;}
.site-footer li{margin-bottom:9px;color:rgba(255,255,255,.62);}
.site-footer a{color:rgba(255,255,255,.72);}
.site-footer a:hover{color:#7FE3C2;text-decoration:none;}
.footer-bottom{
  margin-top:42px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  justify-content:space-between;
  gap:16px;
  font-size:13px;
  color:rgba(255,255,255,.5);
  flex-wrap:wrap;
}

/* 面包屑 */
.crumb{
  font-size:13.5px;
  color:var(--muted);
  margin-bottom:22px;
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--brand-deep);}
.crumb span{margin:0 8px;color:rgba(15,26,23,.28);}
.crumb .current{color:var(--text);font-weight:600;}

/* 响应式 */
@media (max-width:1199px){
  .layout-2col{grid-template-columns:minmax(0,1fr) 268px;gap:32px;}
  .hero-grid{gap:36px;}
}
@media (max-width:991px){
  :root{--sp-section:64px;}
  h1{font-size:30px;}
  h2{font-size:23px;}
  .main-nav{
    position:fixed;
    top:0;right:0;
    width:min(320px,86vw);
    height:100vh;
    background:var(--surface);
    flex-direction:column;
    align-items:stretch;
    padding:88px 22px 30px;
    box-shadow:var(--sh-3);
    transform:translateX(105%);
    transition:transform .28s ease;
    gap:6px;
    z-index:60;
    overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0);}
  .nav-link{padding:14px 12px;border-radius:12px;font-size:16px;}
  .nav-link.active::after{display:none;}
  .nav-link.active{background:rgba(18,184,134,.1);}
  .nav-toggle{display:flex;}
  .header-inner .btn-ghost{display:none;}
  .hero{padding:52px 0 60px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-visual{order:-1;aspect-ratio:16/10;}
  .layout-2col{grid-template-columns:1fr;}
  .anchor-panel{position:static;order:-1;}
  .article-body{padding:30px 24px;}
  .slot-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .metric-strip{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-inner{grid-template-columns:1fr;gap:24px;}
  .cta-band{padding:36px 26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .topbar-left{display:none;}
  .topbar .container{justify-content:flex-end;}
}
@media (max-width:575px){
  .container{padding:0 16px;}
  h1{font-size:27px;}
  h2{font-size:21px;}
  .hero-actions .btn{width:100%;}
  .hero-badges{gap:8px;}
  .stat-badge{padding:8px 14px;}
  .stat-badge b{font-size:18px;}
  .slot-grid{grid-template-columns:1fr;}
  .metric-strip{grid-template-columns:1fr;}
  .article-body{padding:24px 18px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .accordion-button{padding:18px;font-size:15.5px;}
  .accordion-body{padding:0 18px 20px;}
}

/* roulang page: article */
:root{
  --brand:#12B886;
  --brand-deep:#0B8F6A;
  --accent-violet:#6C5CE7;
  --signal:#FF7A2F;
  --bg:#F5F8F7;
  --surface:#FFFFFF;
  --ink:#0F1A17;
  --text:#1C2A26;
  --muted:#5F726C;
  --line:rgba(15,26,23,.08);
  --grad:linear-gradient(135deg,#12B886 0%,#0B8F6A 55%,#6C5CE7 130%);
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-1:0 6px 20px rgba(15,26,23,.06);
  --sh-2:0 14px 34px rgba(15,26,23,.12);
  --sh-3:0 24px 60px rgba(15,26,23,.16);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--brand-deep);text-decoration:none;transition:color .18s ease,border-color .18s ease;}
a:hover{color:var(--brand);text-decoration:underline;}
button,input{font-family:inherit;font-size:inherit;}
:focus-visible{outline:3px solid rgba(18,184,134,.45);outline-offset:2px;border-radius:6px;}
h1,h2,h3,h4{margin:0;color:var(--ink);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* 顶部信息条 */
.topbar{background:var(--ink);color:#CFE3DC;font-size:13px;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px;}
.topbar-text{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.topbar-link{color:#FFFFFF;border-bottom:1px solid rgba(255,255,255,.42);white-space:nowrap;}
.topbar-link:hover{color:var(--brand);text-decoration:none;border-color:var(--brand);}

/* 主导航 */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);}
.header-inner{display:flex;align-items:center;gap:20px;min-height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;flex-shrink:0;}
.brand:hover{color:var(--ink);text-decoration:none;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--grad);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:700;
  box-shadow:0 4px 14px rgba(18,184,134,.32);flex-shrink:0;
}
.brand-text{font-size:18px;letter-spacing:-.2px;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:4px;margin:0 auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:10px 14px;border-radius:10px;font-size:15px;color:var(--muted);
}
.nav-link:hover{color:var(--brand-deep);background:rgba(18,184,134,.07);text-decoration:none;}
.nav-link.active{color:var(--brand-deep);font-weight:600;}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  border-radius:2px;background:var(--brand);
}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:10px 20px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1.2;border:1px solid transparent;
  cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn:hover{text-decoration:none;transform:translateY(-1px);}
.btn:active{transform:translateY(1px);}
.btn-primary-brand{background:var(--signal);color:#fff;box-shadow:0 8px 22px rgba(255,122,47,.3);}
.btn-primary-brand:hover{background:#FF8C4A;color:#fff;box-shadow:0 12px 28px rgba(255,122,47,.36);}
.btn-ghost{background:#fff;color:var(--text);border-color:var(--line);}
.btn-ghost:hover{color:var(--brand-deep);border-color:rgba(18,184,134,.42);}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:#fff;cursor:pointer;padding:0;flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:var(--ink);transition:transform .22s ease,opacity .22s 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);}

/* 面包屑 */
.page-main{padding:28px 0 0;}
.crumb{font-size:13px;color:var(--muted);line-height:1.6;}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.crumb li{display:inline-flex;align-items:center;gap:8px;}
.crumb li:not(:last-child)::after{content:"/";color:rgba(15,26,23,.22);}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--brand-deep);text-decoration:none;}
.crumb .current{color:var(--text);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* 文章头部 */
.article-header{padding:34px 0 0;}
.article-cat{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(18,184,134,.1);border:1px solid rgba(18,184,134,.28);
  color:var(--brand-deep);font-size:13px;font-weight:600;
}
.article-title{
  font-size:40px;line-height:1.3;font-weight:700;letter-spacing:-.5px;
  margin:18px 0 0;max-width:900px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;
  margin-top:18px;font-size:13px;color:var(--muted);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(15,26,23,.2);display:inline-block;}
.meta-num{font-variant-numeric:tabular-nums;font-weight:700;color:var(--ink);}

/* 文章主体 */
.article-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:40px;margin-top:32px;
}
.article-body{max-width:760px;font-size:16px;line-height:1.85;color:var(--text);}
.article-body p{margin:0 0 1.2em;}
.article-body h2{font-size:26px;line-height:1.4;font-weight:700;margin:40px 0 16px;}
.article-body h3{font-size:20px;line-height:1.5;font-weight:600;margin:32px 0 12px;}
.article-body h4{font-size:16px;font-weight:600;margin:24px 0 10px;}
.article-body ul,.article-body ol{padding-left:1.5em;margin:0 0 1.2em;list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:.5em;padding-left:.2em;}
.article-body img{border-radius:16px;margin:24px 0;height:auto;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px;}
.article-body blockquote{
  margin:28px 0;padding:18px 22px;background:rgba(18,184,134,.07);
  border-left:4px solid var(--brand);border-radius:0 12px 12px 0;color:var(--muted);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body a{color:var(--brand-deep);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--brand);}
.article-body .table-scroll{overflow-x:auto;margin:24px 0;border:1px solid var(--line);border-radius:12px;}
.article-body table{width:100%;min-width:520px;border-collapse:collapse;margin:0;}
.article-body th,.article-body td{padding:12px 16px;font-size:15px;text-align:left;border-bottom:1px solid var(--line);}
.article-body th{background:rgba(18,184,134,.08);font-weight:600;color:var(--ink);}
.article-body tr:last-child td{border-bottom:0;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0;}

/* 空状态 */
.empty-state{max-width:760px;text-align:center;padding:28px 12px 12px;}
.empty-icon{
  width:64px;height:64px;border-radius:20px;margin:0 auto 20px;
  background:rgba(18,184,134,.1);border:1px solid rgba(18,184,134,.3);
  display:flex;align-items:center;justify-content:center;color:var(--brand-deep);font-size:26px;font-weight:700;
}
.empty-state h2{font-size:22px;margin-bottom:10px;}
.empty-state p{color:var(--muted);margin-bottom:22px;}

/* 文章底部信息条 */
.article-foot{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px 20px;
  margin-top:36px;padding-top:24px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);
}
.badge-chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(18,184,134,.09);border:1px solid rgba(18,184,134,.26);
  font-size:13px;font-weight:600;color:var(--brand-deep);
  font-variant-numeric:tabular-nums;
}
.badge-chip strong{font-weight:800;color:var(--signal);font-variant-numeric:tabular-nums;}

/* 板块通用 */
.section{margin-top:88px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;}
.section-head h2{font-size:27px;line-height:1.4;font-weight:700;}
.section-head p{margin-top:10px;color:var(--muted);font-size:15px;}
.section-more{font-size:15px;font-weight:600;white-space:nowrap;}

/* 相关推荐卡片 */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card-post{
  display:flex;flex-direction:column;background:var(--surface);
  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;
  height:100%;
}
.card-post:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.card-post .thumb{aspect-ratio:16/9;overflow:hidden;background:rgba(15,26,23,.05);}
.card-post .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.card-post:hover .thumb img{transform:scale(1.04);}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-tag{
  align-self:flex-start;padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(108,92,231,.1);border:1px solid rgba(108,92,231,.24);
  color:#5A4BD1;font-size:12px;font-weight:600;
}
.card-body h3{font-size:19px;line-height:1.5;font-weight:600;}
.card-body h3 a{color:var(--ink);}
.card-body h3 a:hover{color:var(--brand-deep);text-decoration:none;}
.card-body .desc{font-size:14px;line-height:1.75;color:var(--muted);}
.card-foot{margin-top:auto;font-size:13px;color:var(--muted);display:flex;align-items:center;gap:10px;}

/* 返回入口与 CTA 条幅 */
.back-row{margin-top:32px;display:flex;flex-wrap:wrap;align-items:center;gap:16px;}
.cta-strip{
  position:relative;overflow:hidden;margin-top:56px;
  background:var(--grad);border-radius:var(--r-lg);
  padding:36px 40px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:0 18px 40px rgba(11,143,106,.24);
}
.cta-strip::before{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(115deg,rgba(255,255,255,.13) 0 12px,transparent 12px 26px);
  pointer-events:none;
}
.cta-strip > *{position:relative;z-index:1;}
.cta-strip h2{color:#fff;font-size:25px;line-height:1.4;}
.cta-strip p{color:rgba(255,255,255,.88);font-size:15px;margin-top:10px;max-width:56ch;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex-shrink:0;}
.btn-light-solid{background:#fff;color:var(--ink);box-shadow:0 10px 24px rgba(15,26,23,.16);}
.btn-light-solid:hover{background:#F3F7F5;color:var(--ink);}
.btn-outline-light2{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);}
.btn-outline-light2:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}

/* 页脚 */
.site-footer{background:var(--ink);color:#BFD4CD;margin-top:96px;padding:64px 0 0;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700;margin-bottom:16px;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-about{font-size:14px;line-height:1.85;color:#9FB6AE;max-width:38ch;}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;color:#9FB6AE;}
.footer-col a{color:#9FB6AE;}
.footer-col a:hover{color:var(--brand);text-decoration:none;}
.footer-bottom{
  margin-top:48px;padding:20px 0;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  font-size:13px;color:#8AA098;
}

/* 响应式 */
@media (max-width:1199px){
  .article-title{font-size:36px;}
}
@media (max-width:991px){
  .container{padding:0 20px;}
  .main-nav{
    position:fixed;top:0;right:0;bottom:0;width:290px;z-index:80;
    flex-direction:column;align-items:stretch;gap:2px;
    background:#fff;padding:84px 20px 28px;margin:0;
    box-shadow:var(--sh-3);transform:translateX(105%);
    transition:transform .28s ease;overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0);}
  .nav-link{padding:14px 12px;font-size:16px;border-radius:12px;}
  .nav-link.active{background:rgba(18,184,134,.08);}
  .nav-link.active::after{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions .btn-ghost{display:none;}
  .section{margin-top:64px;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .cta-strip{flex-direction:column;align-items:flex-start;padding:32px 28px;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px;}
  .article-title{font-size:32px;}
}
@media (max-width:767px){
  .topbar-text{display:none;}
  .article-panel{padding:24px 20px;border-radius:var(--r-md);}
  .article-title{font-size:27px;line-height:1.35;}
  .article-body h2{font-size:22px;margin-top:32px;}
  .related-grid{grid-template-columns:1fr;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .section-head h2{font-size:23px;}
  .cta-strip h2{font-size:21px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .crumb .current{max-width:220px;}
}
@media (max-width:519px){
  .container{padding:0 16px;}
  .header-inner{gap:12px;}
  .brand-text{font-size:16px;}
  .article-title{font-size:26px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .article-meta{gap:8px 14px;}
}

/* roulang page: category2 */
:root{
  --brand:#12B886;
  --brand-deep:#0B8F6A;
  --accent-violet:#6C5CE7;
  --signal:#FF7A2F;
  --bg:#F5F8F7;
  --surface:#FFFFFF;
  --ink:#0F1A17;
  --text:#1C2A26;
  --muted:#5F726C;
  --line:rgba(15,26,23,.08);
  --grad:linear-gradient(135deg,#12B886 0%,#0B8F6A 55%,#6C5CE7 130%);
  --r-xl:24px;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --sh-1:0 6px 20px rgba(15,26,23,.06);
  --sh-2:0 14px 34px rgba(15,26,23,.12);
  --sh-3:0 24px 60px rgba(15,26,23,.16);
  --section-y:92px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-deep);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand);text-decoration:underline}
button{font-family:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid rgba(18,184,134,.45);outline-offset:2px}
h1,h2,h3,h4{margin:0;color:var(--ink)}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul{padding-left:1.2em}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:20px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text);font-weight:700;flex-shrink:0}
.brand:hover{text-decoration:none;color:var(--text)}
.brand-mark{
  width:36px;height:36px;display:grid;place-items:center;border-radius:12px;
  background:var(--grad);color:#fff;font-weight:700;font-size:18px;
  box-shadow:0 6px 16px rgba(18,184,134,.32);
}
.brand-text{font-size:19px;letter-spacing:-.3px;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;padding:10px 14px;color:var(--muted);font-size:15px;
  font-weight:500;border-radius:10px;white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--brand-deep);text-decoration:none;background:#F0F7F4}
.nav-link.active{color:var(--brand-deep);font-weight:700;background:#F0F7F4}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  border-radius:2px;background:var(--grad);
}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:14px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:999px;font-size:15px;
  font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-1px);text-decoration:none}
.btn:active{transform:translateY(1px)}
.btn-primary-brand{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(11,143,106,.28)}
.btn-primary-brand:hover{color:#fff;box-shadow:0 14px 30px rgba(11,143,106,.36)}
.btn-ghost{background:#fff;color:var(--brand-deep);border-color:rgba(18,184,134,.42)}
.btn-ghost:hover{color:var(--brand-deep);background:#F0F7F4}
.btn-signal{background:var(--signal);color:#fff;box-shadow:0 10px 24px rgba(255,122,47,.28)}
.btn-signal:hover{color:#fff;box-shadow:0 14px 30px rgba(255,122,47,.34)}
.btn-lg{min-height:52px;padding:0 28px;font-size:16px}
.btn-block{width:100%}
.nav-toggle{
  display:none;width:46px;height:46px;border-radius:12px;border:1px solid var(--line);
  background:#fff;padding:0;flex-direction:column;gap:5px;align-items:center;justify-content:center;
  cursor:pointer;flex-shrink:0;
}
.nav-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:var(--text);transition:transform .22s ease,opacity .22s ease}
.site-header.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.site-header.nav-open .nav-toggle span:nth-child(2){opacity:0}
.site-header.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#E8F6F0 0%,#F5F8F7 100%);
  padding:64px 0 76px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.65;
  background-image:linear-gradient(rgba(15,26,23,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(15,26,23,.035) 1px,transparent 1px);
  background-size:44px 44px;
}
.hero-grid{position:relative;display:grid;grid-template-columns:6fr 5fr;gap:48px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:#fff;border:1px solid rgba(18,184,134,.3);color:var(--brand-deep);
  font-size:13px;font-weight:600;letter-spacing:.3px;
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--signal);display:inline-block}
.hero-title{
  font-size:40px;line-height:1.3;font-weight:700;letter-spacing:-.5px;
  margin:18px 0 16px;color:var(--ink);
}
.hero-sub{font-size:17px;line-height:1.85;color:var(--muted);max-width:36em;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:28px}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px}
.badge-pill{
  display:inline-flex;align-items:baseline;gap:6px;padding:8px 16px;border-radius:999px;
  background:#fff;border:1px solid rgba(18,184,134,.28);box-shadow:var(--sh-1);
  font-size:13px;color:var(--muted);font-weight:500;
}
.badge-num{font-size:20px;font-weight:800;color:var(--brand-deep);font-variant-numeric:tabular-nums;line-height:1}
.hero-visual{position:relative}
.hero-visual::before{
  content:"";position:absolute;width:240px;height:240px;right:-50px;top:-50px;border-radius:50%;
  background:var(--grad);filter:blur(52px);opacity:.35;pointer-events:none;
}
.hero-visual img{
  position:relative;z-index:1;width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--r-xl);box-shadow:var(--sh-3);
}

/* ---------- 通用板块 ---------- */
.section{padding:var(--section-y) 0}
.section-alt{background:var(--surface)}
.section-head{max-width:760px;margin-bottom:42px}
.section-title{font-size:27px;line-height:1.4;font-weight:700;letter-spacing:-.4px;margin-bottom:12px}
.section-desc{color:var(--muted);font-size:16px;margin:0}
.section-alt .section-title{color:var(--ink)}

/* ---------- 说明区块 ---------- */
.intro-split{display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:start}
.intro-copy p{font-size:16px;line-height:1.85;color:var(--text)}
.intro-copy h3{font-size:19px;font-weight:600;margin:28px 0 10px}
.intro-copy h3:first-child{margin-top:0}
.check-list{list-style:none;padding:0;margin:0;display:grid;gap:14px}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-md);padding:16px 18px;
  box-shadow:var(--sh-1);font-size:15px;line-height:1.75;color:var(--text);
}
.check-list .tick{
  flex-shrink:0;width:22px;height:22px;border-radius:50%;background:rgba(18,184,134,.14);
  color:var(--brand-deep);display:grid;place-items:center;font-size:13px;font-weight:700;margin-top:4px;
}
.check-list strong{color:var(--ink)}

/* ---------- 时间线 ---------- */
.timeline{position:relative;padding-left:40px}
.timeline::before{
  content:"";position:absolute;left:11px;top:10px;bottom:10px;width:2px;
  background:linear-gradient(180deg,var(--brand) 0%,rgba(108,92,231,.4) 100%);
}
.tl-item{position:relative;padding-bottom:26px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{
  position:absolute;left:-40px;top:8px;width:24px;height:24px;border-radius:50%;
  background:var(--grad);color:#fff;display:grid;place-items:center;
  font-size:12px;font-weight:700;box-shadow:0 0 0 6px rgba(18,184,134,.12);
  font-variant-numeric:tabular-nums;
}
.tl-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px 24px;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease;
}
.tl-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.tl-step{font-size:13px;font-weight:600;color:var(--brand-deep);letter-spacing:.4px}
.tl-title{font-size:19px;font-weight:600;line-height:1.5;margin:4px 0 8px}
.tl-text{color:var(--muted);font-size:15px;line-height:1.8;margin:0}
.tl-meta{display:inline-flex;align-items:center;gap:6px;margin-top:12px;font-size:13px;color:var(--muted)}
.tl-meta b{color:var(--signal);font-weight:700;font-variant-numeric:tabular-nums}

/* ---------- 准备清单 ---------- */
.prep-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.prep-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px 26px;box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease;
}
.prep-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.prep-icon{
  width:46px;height:46px;border-radius:14px;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-size:18px;font-weight:700;margin-bottom:14px;
  box-shadow:0 8px 20px rgba(11,143,106,.24);
}
.prep-item h3{font-size:18px;font-weight:600;margin-bottom:8px}
.prep-item p{font-size:15px;line-height:1.8;color:var(--muted);margin:0}
.prep-tag{
  display:inline-block;margin-top:14px;padding:5px 12px;border-radius:999px;
  background:rgba(18,184,134,.1);border:1px solid rgba(18,184,134,.26);
  font-size:13px;color:var(--brand-deep);font-weight:600;
}

/* ---------- 适用场景 ---------- */
.scene-list{display:grid;gap:16px}
.scene-row{
  display:flex;gap:20px;align-items:flex-start;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-lg);padding:24px 26px;
  box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease;
}
.scene-row:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.scene-icon{
  flex-shrink:0;width:52px;height:52px;border-radius:16px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(18,184,134,.14) 0%,rgba(108,92,231,.16) 100%);
  color:var(--brand-deep);font-size:20px;font-weight:700;
}
.scene-body{flex:1;min-width:0}
.scene-body h3{font-size:18px;font-weight:600;margin-bottom:6px}
.scene-body p{font-size:15px;line-height:1.8;color:var(--muted);margin:0}
.scene-badge{
  flex-shrink:0;align-self:center;padding:8px 14px;border-radius:999px;
  background:#fff;border:1px solid rgba(108,92,231,.32);color:var(--accent-violet);
  font-size:13px;font-weight:700;font-variant-numeric:tabular-nums;white-space:nowrap;
}

/* ---------- FAQ ---------- */
.acc{max-width:900px}
.acc .accordion-item{
  border:1px solid var(--line);border-radius:var(--r-lg);background:var(--surface);
  box-shadow:var(--sh-1);margin-bottom:14px;overflow:hidden;
}
.acc .accordion-button{
  font-size:17px;font-weight:600;color:var(--ink);background:transparent;
  padding:20px 24px;box-shadow:none;border-radius:var(--r-lg);
  display:flex;align-items:center;gap:16px;
}
.acc .accordion-button:not(.collapsed){color:var(--brand-deep);background:#F1FAF6}
.acc .accordion-button:focus{box-shadow:none;border-color:transparent}
.acc .accordion-button:focus-visible{outline:3px solid rgba(18,184,134,.45);outline-offset:-3px}
.acc .accordion-button::after{
  content:"+";background-image:none;width:28px;height:28px;flex-shrink:0;
  display:grid;place-items:center;border-radius:50%;margin-left:auto;
  background-color:rgba(18,184,134,.12);color:var(--brand-deep);
  font-size:20px;font-weight:600;line-height:1;
  transition:transform .25s ease,background-color .25s ease;
}
.acc .accordion-button:not(.collapsed)::after{transform:rotate(45deg);background-color:rgba(18,184,134,.2)}
.acc .accordion-button:not(.collapsed){box-shadow:inset 3px 0 0 var(--brand)}
.acc .accordion-body{
  padding:4px 24px 24px;color:var(--muted);font-size:16px;line-height:1.8;max-width:72ch;
}

/* ---------- CTA ---------- */
.cta-wrap{padding:0 0 var(--section-y)}
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-xl);background:var(--grad);
  padding:46px 48px;color:#fff;display:grid;grid-template-columns:1.15fr 1fr;
  gap:36px;align-items:center;box-shadow:var(--sh-3);
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.1) 0 12px,transparent 12px 26px);
}
.cta-copy{position:relative;z-index:1}
.cta-copy h2{color:#fff;font-size:27px;line-height:1.4;font-weight:700;margin-bottom:12px}
.cta-copy p{color:rgba(255,255,255,.9);font-size:16px;line-height:1.8;margin:0}
.cta-points{list-style:none;padding:0;margin:20px 0 0;display:flex;flex-wrap:wrap;gap:10px}
.cta-points li{
  padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.32);font-size:13px;font-weight:600;
}
.cta-form{
  position:relative;z-index:1;background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.3);border-radius:18px;padding:22px;
}
.cta-form .form-label{color:rgba(255,255,255,.94);font-size:13px;font-weight:600;margin-bottom:6px}
.cta-form .form-control,.cta-form .form-select{
  background:#fff;border:1px solid rgba(255,255,255,.55);border-radius:12px;
  min-height:46px;font-size:15px;color:var(--text);margin-bottom:16px;
}
.cta-form .form-control::placeholder{color:#8A9A95}
.cta-form .form-control:focus,.cta-form .form-select:focus{
  border-color:#fff;box-shadow:0 0 0 3px rgba(18,184,134,.5);
}
.cta-note{font-size:13px;color:rgba(255,255,255,.82);margin:12px 0 0;line-height:1.7}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-about{font-size:14px;line-height:1.8;max-width:360px;margin:0}
.site-footer h4{font-size:16px;font-weight:600;color:#fff;margin-bottom:16px}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin-bottom:10px;font-size:14px;line-height:1.7}
.site-footer a{color:rgba(255,255,255,.72)}
.site-footer a:hover{color:#fff;text-decoration:underline}
.footer-bottom{
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  padding:18px 0 28px;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero-title{font-size:36px}
  .container{padding:0 22px}
}
@media (max-width:991px){
  :root{--section-y:74px}
  .main-nav{
    position:fixed;top:72px;right:0;width:290px;max-width:86vw;
    height:calc(100% - 72px);background:#fff;flex-direction:column;
    align-items:stretch;gap:6px;padding:22px;margin-left:0;
    box-shadow:var(--sh-3);transform:translateX(105%);
    transition:transform .28s ease;overflow-y:auto;
  }
  .site-header.nav-open .main-nav{transform:translateX(0)}
  .nav-link{padding:14px 16px;font-size:16px}
  .nav-link.active::after{left:16px;right:16px;bottom:6px}
  .nav-toggle{display:flex}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-visual{order:-1}
  .hero-title{font-size:32px}
  .intro-split{grid-template-columns:1fr;gap:30px}
  .cta-band{grid-template-columns:1fr;padding:34px 28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  :root{--section-y:58px}
  .container{padding:0 16px}
  .brand-text{font-size:17px}
  .header-actions .btn-ghost{display:none}
  .page-hero{padding:44px 0 54px}
  .hero-title{font-size:28px;line-height:1.35}
  .hero-sub{font-size:16px}
  .section-title{font-size:23px}
  .prep-grid{grid-template-columns:1fr}
  .scene-row{flex-direction:column;gap:14px}
  .scene-badge{align-self:flex-start}
  .timeline{padding-left:32px}
  .timeline::before{left:9px}
  .tl-dot{left:-32px;width:20px;height:20px;font-size:11px;top:9px}
  .acc .accordion-button{font-size:16px;padding:18px 18px}
  .acc .accordion-body{padding:2px 18px 20px}
  .cta-band{padding:28px 20px;border-radius:var(--r-lg)}
  .cta-copy h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px}
  .footer-about{max-width:none}
}
@media (max-width:520px){
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
  .hero-badges{gap:8px}
  .badge-pill{padding:7px 12px;font-size:12px}
  .badge-num{font-size:18px}
  .cta-points{gap:8px}
  .footer-bottom{flex-direction:column;gap:6px}
}

/* roulang page: category3 */
:root{
  --brand:#12B886;
  --brand-deep:#0B8F6A;
  --accent-violet:#6C5CE7;
  --signal:#FF7A2F;
  --bg:#F5F8F7;
  --surface:#FFFFFF;
  --ink:#0F1A17;
  --text:#1C2A26;
  --muted:#5F726C;
  --line:rgba(15,26,23,.08);
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow-1:0 6px 20px rgba(15,26,23,.06);
  --shadow-2:0 14px 34px rgba(15,26,23,.12);
  --shadow-3:0 24px 60px rgba(15,26,23,.16);
  --grad:linear-gradient(135deg,#12B886 0%,#0B8F6A 55%,#6C5CE7 130%);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-deep);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-deep);text-decoration:underline}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.2px}
h1{font-size:40px;line-height:1.3;font-weight:700;letter-spacing:-.5px}
h2{font-size:27px;line-height:1.4;font-weight:700}
h3{font-size:19px;line-height:1.5;font-weight:600}
h4{font-size:16px;line-height:1.6;font-weight:600}
p{margin:0 0 1.1em}
ul{margin:0;padding:0;list-style:none}
button,input{font-family:inherit;font-size:inherit}
:focus-visible{outline:3px solid rgba(18,184,134,.45);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
.section{padding:92px 0}
.section-sm{padding:64px 0}
.section-head{max-width:760px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:1.4px;color:var(--brand-deep);
  text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--grad)}
.lead{font-size:17px;color:var(--muted);line-height:1.9}

/* ---------- 顶部信息条 ---------- */
.site-top{position:sticky;top:0;z-index:80;background:var(--surface)}
.topbar{background:var(--ink);color:rgba(255,255,255,.82);font-size:13px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:36px}
.topbar-left{display:flex;align-items:center;gap:10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-dot{width:6px;height:6px;border-radius:50%;background:var(--brand);flex:none}
.topbar-right a{color:#fff;font-weight:600;text-decoration:none;border-bottom:1px solid rgba(255,255,255,.35);padding-bottom:1px}
.topbar-right a:hover{color:var(--brand);border-color:var(--brand)}

/* ---------- 主导航 ---------- */
.site-header{background:var(--surface);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none}
.brand:hover{text-decoration:none}
.brand-mark{
  width:38px;height:38px;flex:none;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--grad);color:#fff;font-weight:800;font-size:18px;
  box-shadow:0 8px 18px rgba(18,184,134,.28);
}
.brand-text{font-size:19px;font-weight:800;color:var(--ink);letter-spacing:-.3px}
.main-nav{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:10px 14px;border-radius:999px;
  font-size:15px;font-weight:600;color:var(--text);
  text-decoration:none;transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--brand-deep);background:rgba(18,184,134,.08);text-decoration:none}
.nav-link.active{color:var(--brand-deep)}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  border-radius:2px;background:var(--brand);
}
.header-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;width:46px;height:46px;border:1px solid var(--line);border-radius:12px;
  background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;
}
.nav-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:var(--ink);transition:transform .25s ease,opacity .25s ease}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
body.nav-open .nav-toggle span:nth-child(2){opacity:0}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
body.nav-open::after{
  content:"";position:fixed;inset:0;background:rgba(15,26,23,.42);z-index:70;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:700;line-height:1.2;cursor:pointer;
  transition:transform .18s ease,background .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease;
  text-decoration:none;
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn:active{transform:translateY(1px)}
.btn-primary-brand{background:var(--brand);color:#fff;box-shadow:0 10px 22px rgba(18,184,134,.26)}
.btn-primary-brand:hover{background:var(--brand-deep);color:#fff;box-shadow:0 14px 30px rgba(11,143,106,.3)}
.btn-ghost{background:#fff;color:var(--text);border-color:var(--line)}
.btn-ghost:hover{color:var(--brand-deep);border-color:rgba(18,184,134,.5)}
.btn-signal{background:var(--signal);color:#fff;box-shadow:0 10px 22px rgba(255,122,47,.26)}
.btn-signal:hover{background:#ef6a1e;color:#fff}
.btn-outline-brand{background:transparent;color:var(--brand-deep);border-color:rgba(18,184,134,.45)}
.btn-outline-brand:hover{background:rgba(18,184,134,.08);color:var(--brand-deep)}
.btn-lg{padding:15px 28px;font-size:16px}
.btn-block{width:100%}

/* ---------- 数据徽章 ---------- */
.stat-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:999px;
  background:rgba(18,184,134,.08);
  border:1px solid rgba(18,184,134,.28);
  color:var(--brand-deep);font-size:13px;font-weight:700;
}
.stat-badge b{font-size:16px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums}
.badge-row{display:flex;flex-wrap:wrap;gap:10px}

/* ---------- Hero ---------- */
.hero{padding:72px 0 84px;background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%)}
.hero-grid{display:grid;grid-template-columns:6fr 5fr;gap:52px;align-items:center}
.hero h1{margin-bottom:18px}
.hero .lead{max-width:52ch;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}
.hero-visual{position:relative;border-radius:24px;overflow:hidden;box-shadow:var(--shadow-2)}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:24px}
.hero-visual::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.16) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:30px 30px;
}
.hero-visual::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(circle at 82% 16%,rgba(108,92,231,.42),transparent 52%),
    radial-gradient(circle at 12% 88%,rgba(18,184,134,.46),transparent 58%);
}
.hero-visual .float-card{
  position:absolute;left:18px;bottom:18px;z-index:2;
  background:rgba(255,255,255,.94);backdrop-filter:blur(6px);
  border-radius:var(--radius-md);padding:14px 18px;box-shadow:var(--shadow-2);
  border:1px solid rgba(255,255,255,.6);
}
.float-card .num{font-size:26px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.2}
.float-card .cap{font-size:12.5px;color:var(--muted)}

/* ---------- 对比表 ---------- */
.table-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);overflow:hidden;
}
.table-scroll{overflow-x:auto}
.cmp-table{width:100%;min-width:760px;border-collapse:separate;border-spacing:0}
.cmp-table thead th{
  background:rgba(18,184,134,.1);
  color:var(--brand-deep);font-size:14px;font-weight:800;letter-spacing:.3px;
  text-align:left;padding:18px 22px;border-bottom:1px solid var(--line);white-space:nowrap;
}
.cmp-table tbody td{
  padding:18px 22px;font-size:15px;color:var(--text);
  border-bottom:1px solid var(--line);vertical-align:top;
}
.cmp-table tbody tr:nth-child(even){background:rgba(15,26,23,.015)}
.cmp-table tbody tr:hover{background:rgba(18,184,134,.06)}
.cmp-table tbody tr:last-child td{border-bottom:none}
.cmp-table .symptom{font-weight:700;color:var(--ink);min-width:180px}
.cmp-table .cost{font-variant-numeric:tabular-nums;font-weight:700;color:var(--signal);white-space:nowrap}
.table-note{font-size:13px;color:var(--muted);margin-top:14px}

/* ---------- 解读 ---------- */
.read-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.read-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px;box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease;
}
.read-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.read-card h3{margin-bottom:12px}
.read-card p:last-child{margin-bottom:0}
.read-card .tag{
  display:inline-block;font-size:12.5px;font-weight:700;color:var(--accent-violet);
  background:rgba(108,92,231,.1);border:1px solid rgba(108,92,231,.22);
  border-radius:999px;padding:4px 12px;margin-bottom:14px;
}

/* ---------- 指标 ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:36px}
.metric{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:24px;box-shadow:var(--shadow-1);
}
.metric .value{font-size:34px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.15}
.metric .value span{font-size:15px;font-weight:700;color:var(--muted);margin-left:4px}
.metric .label{font-size:13.5px;color:var(--muted);margin-top:6px}

/* ---------- 安全设置 ---------- */
.split{display:grid;grid-template-columns:5fr 6fr;gap:52px;align-items:center}
.check-list li{
  display:flex;gap:14px;padding:16px 0;border-bottom:1px dashed var(--line);
}
.check-list li:last-child{border-bottom:none}
.check-icon{
  width:34px;height:34px;flex:none;border-radius:12px;
  background:rgba(18,184,134,.12);color:var(--brand-deep);
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;
}
.check-list h4{margin-bottom:2px}
.check-list p{margin:0;font-size:14px;color:var(--muted);line-height:1.75}
.media-frame{border-radius:24px;overflow:hidden;box-shadow:var(--shadow-2);border:1px solid var(--line)}
.media-frame img{width:100%;aspect-ratio:16/11;object-fit:cover}

/* ---------- FAQ ---------- */
.faq .accordion-item{
  background:var(--surface);border:1px solid var(--line) !important;
  border-radius:var(--radius-md) !important;margin-bottom:14px;overflow:hidden;
  box-shadow:var(--shadow-1);
}
.faq .accordion-button{
  background:var(--surface);color:var(--ink);font-size:16.5px;font-weight:700;
  padding:20px 24px;box-shadow:none !important;
  border-left:3px solid transparent;transition:border-color .2s ease,color .2s ease;
}
.faq .accordion-button:not(.collapsed){color:var(--brand-deep);border-left-color:var(--brand)}
.faq .accordion-button::after{
  content:"+";background-image:none !important;
  width:28px;height:28px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:600;line-height:1;
  background:rgba(18,184,134,.12);color:var(--brand-deep);
  transition:transform .25s ease,background .25s ease,color .25s ease;
}
.faq .accordion-button:not(.collapsed)::after{
  transform:rotate(45deg);background:var(--brand);color:#fff;
}
.faq .accordion-body{
  padding:2px 24px 22px;color:var(--text);font-size:16px;line-height:1.8;max-width:72ch;
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:24px;
  background:var(--grad);color:#fff;padding:52px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.09) 0 2px,transparent 2px 12px);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:6fr 5fr;gap:40px;align-items:center}
.cta-band h2{color:#fff;margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.9);margin:0;max-width:52ch}
.cta-form{
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);
  border-radius:var(--radius-md);padding:20px;backdrop-filter:blur(4px);
}
.cta-form label{display:block;font-size:13px;font-weight:700;color:rgba(255,255,255,.92);margin-bottom:6px}
.cta-form .field{margin-bottom:14px}
.cta-form input{
  width:100%;height:48px;border-radius:var(--radius-sm);border:1px solid rgba(255,255,255,.5);
  background:#fff;color:var(--ink);padding:0 14px;outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.cta-form input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(18,184,134,.3)}
.cta-form .hint{font-size:12.5px;color:rgba(255,255,255,.85);margin:10px 0 0}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:18px;margin-bottom:14px}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);margin:0;max-width:40ch}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:14px}
.footer-col ul li{font-size:14px;line-height:2;color:rgba(255,255,255,.62)}
.footer-col ul li a{color:rgba(255,255,255,.72);text-decoration:none}
.footer-col ul li a:hover{color:var(--brand);text-decoration:underline}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;
  padding:20px 0 28px;font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  h1{font-size:36px}
  .hero-grid{gap:40px}
}
@media (max-width:991.98px){
  h1{font-size:29px}
  h2{font-size:23px}
  .section{padding:64px 0}
  .hero{padding:52px 0 60px}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .split{grid-template-columns:1fr;gap:32px}
  .read-grid{grid-template-columns:1fr}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .cta-inner{grid-template-columns:1fr;gap:26px}
  .cta-band{padding:36px 26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .main-nav{
    position:fixed;top:0;right:-330px;width:308px;height:100%;
    background:#fff;flex-direction:column;align-items:stretch;gap:4px;
    padding:92px 22px 26px;box-shadow:var(--shadow-3);z-index:90;
    transition:right .28s ease;overflow-y:auto;
  }
  .main-nav.open{right:0}
  .nav-link{padding:13px 14px;font-size:16px}
  .nav-link.active{background:rgba(18,184,134,.08)}
  .nav-link.active::after{display:none}
  .nav-toggle{display:flex}
  .header-actions .btn-ghost{display:none}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px}
  h1{font-size:27px}
  .section{padding:54px 0}
  .hero-actions .btn{width:100%}
  .metrics{grid-template-columns:1fr}
  .cta-band{padding:30px 20px;border-radius:20px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .topbar-left{display:none}
  .topbar-inner{justify-content:flex-end}
  .cmp-table thead th,.cmp-table tbody td{padding:14px 16px}
}

/* roulang page: category4 */
:root{
  --brand:#12B886;
  --brand-deep:#0B8F6A;
  --accent-violet:#6C5CE7;
  --signal:#FF7A2F;
  --bg:#F5F8F7;
  --surface:#FFFFFF;
  --ink:#0F1A17;
  --text:#1C2A26;
  --muted:#5F726C;
  --line:rgba(15,26,23,.08);
  --grad:linear-gradient(135deg,#12B886 0%,#0B8F6A 55%,#6C5CE7 130%);
  --shadow-1:0 6px 20px rgba(15,26,23,.06);
  --shadow-2:0 14px 34px rgba(15,26,23,.12);
  --shadow-3:0 24px 60px rgba(15,26,23,.16);
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --r-pill:999px;
  --section:92px;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--brand-deep);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-deep);text-decoration:underline}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.2px}
h1{font-size:clamp(26px,4.2vw,40px);line-height:1.3;font-weight:700;letter-spacing:-.5px}
h2{font-size:clamp(22px,3vw,27px);line-height:1.4;font-weight:700}
h3{font-size:19px;line-height:1.5;font-weight:600}
h4{font-size:16px;font-weight:600}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:3px solid rgba(18,184,134,.45);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:var(--section) 0}
.section-sm{padding:64px 0}
.section-head{margin-bottom:36px;max-width:760px}
.section-head .kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand-deep);
  letter-spacing:1px;text-transform:uppercase;margin-bottom:12px;
}
.section-head .kicker::before{
  content:"";width:22px;height:2px;background:var(--grad);border-radius:2px;
}
.section-head p{color:var(--muted);margin-top:12px;font-size:15px}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px}
.section-head-row .more-link{font-size:14px;font-weight:600;white-space:nowrap}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--ink);color:rgba(255,255,255,.74);font-size:13px;line-height:1.6}
.topbar-inner{
  display:flex;align-items:center;justify-content:space-between;
  min-height:36px;gap:16px;
}
.topbar-left{display:flex;align-items:center;gap:10px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.topbar-dot{width:6px;height:6px;border-radius:50%;background:var(--brand);flex:0 0 6px}
.topbar a{color:#fff;font-weight:600;text-decoration:none;border-bottom:1px solid rgba(255,255,255,.35);padding-bottom:1px}
.topbar a:hover{color:var(--brand);border-color:var(--brand);text-decoration:none}
@media (max-width:767.98px){
  .topbar-left{display:none}
  .topbar-inner{justify-content:flex-end}
}

/* ============ 主导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;min-height:72px;
}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.brand:hover{text-decoration:none}
.brand-mark{
  width:40px;height:40px;border-radius:13px;
  background:var(--grad);
  color:#fff;font-weight:700;font-size:19px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(18,184,134,.32);
  flex:0 0 40px;
}
.brand-text{font-size:19px;font-weight:700;color:var(--ink);letter-spacing:.2px;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;display:inline-block;
  padding:22px 14px;font-size:15px;font-weight:500;color:var(--text);text-decoration:none;
  transition:color .2s ease;
}
.nav-link:hover{color:var(--brand-deep);text-decoration:none}
.nav-link.active{color:var(--brand-deep);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:16px;height:2px;
  background:var(--brand);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:10px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
  text-decoration:none;white-space:nowrap;
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn:active{transform:translateY(1px)}
.btn-brand{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(18,184,134,.28)}
.btn-brand:hover{background:var(--brand-deep);color:#fff;box-shadow:0 12px 26px rgba(18,184,134,.34)}
.btn-signal{background:var(--signal);color:#fff;box-shadow:0 8px 20px rgba(255,122,47,.28)}
.btn-signal:hover{background:#ef6a1d;color:#fff;box-shadow:0 12px 26px rgba(255,122,47,.34)}
.btn-outline-brand{background:transparent;color:var(--brand-deep);border-color:rgba(18,184,134,.5)}
.btn-outline-brand:hover{background:rgba(18,184,134,.08);color:var(--brand-deep);border-color:var(--brand)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line);padding:0 18px}
.btn-ghost:hover{background:#fff;border-color:rgba(18,184,134,.4);color:var(--brand-deep);box-shadow:var(--shadow-1)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s ease,opacity .25s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.nav-backdrop{
  display:none;position:fixed;inset:0;background:rgba(15,26,23,.42);z-index:1045;
}
.nav-backdrop.show{display:block}

@media (max-width:991.98px){
  .nav-toggle{display:flex}
  .header-actions .btn-ghost{display:none}
  .main-nav{
    position:fixed;top:0;right:0;bottom:0;width:290px;max-width:86vw;
    background:#fff;flex-direction:column;align-items:stretch;gap:2px;
    padding:92px 20px 32px;z-index:1050;
    transform:translateX(105%);transition:transform .3s ease;
    box-shadow:var(--shadow-3);overflow-y:auto;
  }
  .main-nav.open{transform:translateX(0)}
  .nav-link{padding:14px 12px;border-radius:var(--r-sm);font-size:16px}
  .nav-link.active{background:rgba(18,184,134,.1)}
  .nav-link.active::after{display:none}
}
@media (max-width:575.98px){
  .container{padding:0 16px}
  .brand-text{font-size:17px}
  .header-actions .btn-primary-brand{padding:0 16px;font-size:14px}
}

/* ============ Hero ============ */
.hero{position:relative;padding:72px 0 76px;overflow:hidden;background:
  radial-gradient(900px 420px at 88% -12%,rgba(108,92,231,.16),transparent 62%),
  radial-gradient(760px 380px at 6% 0%,rgba(18,184,134,.16),transparent 60%),
  var(--bg);
}
.hero-grid{
  display:grid;grid-template-columns:minmax(0,6fr) minmax(0,5fr);
  gap:52px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:var(--r-pill);
  background:#fff;border:1px solid rgba(18,184,134,.32);
  color:var(--brand-deep);font-size:13px;font-weight:600;
  box-shadow:var(--shadow-1);margin-bottom:20px;
}
.eyebrow i{font-size:12px}
.hero h1{margin-bottom:18px}
.hero-sub{font-size:17px;color:var(--muted);max-width:56ch;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px}
.badge-data{
  display:inline-flex;align-items:center;gap:10px;
  padding:11px 18px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.86);
  border:1px solid rgba(18,184,134,.26);
  box-shadow:var(--shadow-1);
  font-size:13px;line-height:1.4;color:var(--muted);
}
.badge-data strong{
  font-size:19px;font-weight:800;color:var(--signal);
  font-variant-numeric:tabular-nums;letter-spacing:.2px;
}
.badge-data span{white-space:nowrap}
.hero-visual{position:relative}
.hero-visual::before{
  content:"";position:absolute;inset:-26px -18px auto auto;width:210px;height:210px;
  border-radius:50%;background:var(--grad);opacity:.22;filter:blur(28px);z-index:0;
}
.hero-visual::after{
  content:"";position:absolute;left:-14px;bottom:-16px;width:130px;height:130px;border-radius:26px;
  border:1px dashed rgba(108,92,231,.4);z-index:0;
}
.hero-figure{
  position:relative;z-index:1;border-radius:24px;overflow:hidden;
  box-shadow:var(--shadow-2);background:#fff;
  aspect-ratio:16/11;
}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.hero-figure figcaption{
  position:absolute;left:18px;bottom:18px;right:18px;
  background:rgba(15,26,23,.72);color:#fff;border-radius:var(--r-sm);
  padding:10px 14px;font-size:13px;line-height:1.6;backdrop-filter:blur(6px);
}
@media (max-width:991.98px){
  .hero{padding:52px 0 60px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-actions .btn{flex:1 1 100%}
  .hero-sub{font-size:16px}
}
@media (max-width:575.98px){
  .hero-badges{gap:8px}
  .badge-data{padding:9px 14px;font-size:12px}
  .badge-data strong{font-size:16px}
}

/* ============ 关键词条 ============ */
.keyword-strip{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.strip-inner{display:flex;align-items:center;gap:18px;padding:18px 0;flex-wrap:wrap}
.strip-label{
  display:inline-flex;align-items:center;gap:8px;flex:0 0 auto;
  font-size:13px;font-weight:700;color:var(--ink);letter-spacing:.5px;
}
.strip-label i{color:var(--brand)}
.strip-tags{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;
  padding:7px 15px;border-radius:var(--r-pill);
  font-size:13px;color:var(--text);
  background:var(--bg);border:1px solid var(--line);
  transition:border-color .2s ease,color .2s ease,background-color .2s ease;
}
.tag:hover{border-color:rgba(18,184,134,.5);color:var(--brand-deep);background:#fff}

/* ============ 卡片网格 ============ */
.grid-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.info-card{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:28px 26px;
  box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.info-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(18,184,134,.32)}
.icon-base{
  width:52px;height:52px;border-radius:16px;background:var(--grad);
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:20px;
  box-shadow:0 10px 22px rgba(18,184,134,.26);margin-bottom:18px;
}
.info-card h3{margin-bottom:12px;padding-right:74px}
.info-card p{font-size:14px;line-height:1.75;color:var(--muted);margin-bottom:14px}
.card-metric{
  position:absolute;top:22px;right:22px;
  padding:6px 13px;border-radius:var(--r-pill);
  background:rgba(18,184,134,.1);border:1px solid rgba(18,184,134,.34);
  font-size:12px;font-weight:700;color:var(--brand-deep);
  font-variant-numeric:tabular-nums;white-space:nowrap;
}
.card-list{display:grid;gap:9px;border-top:1px dashed var(--line);padding-top:14px}
.card-list li{position:relative;padding-left:18px;font-size:14px;line-height:1.7;color:var(--text)}
.card-list li::before{
  content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;
  background:var(--brand);opacity:.85;
}
@media (max-width:1119.98px){
  .grid-cards{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:767.98px){
  .grid-cards{grid-template-columns:1fr}
  .info-card h3{padding-right:0}
  .card-metric{position:static;display:inline-block;margin-bottom:14px}
}

/* ============ 统计条 ============ */
.stats-band{background:var(--ink);color:#fff;border-radius:26px;padding:44px 40px}
.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px}
.stat-item{border-left:1px solid rgba(255,255,255,.14);padding-left:22px}
.stat-item:first-child{border-left:0;padding-left:0}
.stat-value{
  font-size:clamp(28px,4vw,38px);font-weight:800;line-height:1.15;
  color:#fff;font-variant-numeric:tabular-nums;
}
.stat-value em{font-style:normal;font-size:16px;font-weight:600;color:var(--brand);margin-left:4px}
.stat-label{font-size:14px;color:rgba(255,255,255,.66);margin-top:8px}
.stat-note{font-size:13px;color:rgba(255,255,255,.46);margin-top:4px}
@media (max-width:991.98px){
  .stats-band{padding:34px 26px;border-radius:20px}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
  .stat-item{border-left:0;padding-left:0}
}
@media (max-width:575.98px){
  .stats-grid{grid-template-columns:1fr}
}

/* ============ 核对清单 ============ */
.check-wrap{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:44px;align-items:center}
.check-figure{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-2);aspect-ratio:4/3}
.check-figure img{width:100%;height:100%;object-fit:cover}
.check-list{display:grid;gap:20px}
.check-item{
  display:grid;grid-template-columns:auto 1fr;gap:18px;
  background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--brand);
  border-radius:var(--r-md);padding:22px 24px;box-shadow:var(--shadow-1);
  transition:box-shadow .22s ease,transform .22s ease;
}
.check-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.check-num{
  width:38px;height:38px;border-radius:50%;background:var(--grad);color:#fff;
  font-weight:700;font-size:16px;display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.check-item h3{margin-bottom:6px}
.check-item p{font-size:14px;line-height:1.75;color:var(--muted);margin:0}
@media (max-width:991.98px){
  .check-wrap{grid-template-columns:1fr;gap:30px}
}

/* ============ 常见问题 ============ */
.faq-panel{background:var(--surface);border-radius:var(--r-lg);padding:10px;box-shadow:var(--shadow-1)}
.accordion-item{
  border:0;border-bottom:1px solid var(--line);background:transparent;border-radius:0;overflow:hidden;
}
.accordion-item:last-child{border-bottom:0}
.accordion-button{
  width:100%;background:transparent;border:0;box-shadow:none;
  padding:22px 22px 22px 20px;font-size:17px;font-weight:600;color:var(--ink);
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  border-radius:var(--r-md);
}
.accordion-button:not(.collapsed){color:var(--brand-deep);background:rgba(18,184,134,.06)}
.accordion-button:focus{box-shadow:none;outline:3px solid rgba(18,184,134,.35);outline-offset:-3px}
.accordion-button::after{
  content:"+";background-image:none;width:30px;height:30px;flex:0 0 30px;
  display:flex;align-items:center;justify-content:center;
  font-size:22px;line-height:1;font-weight:400;color:var(--brand-deep);
  border:1px solid rgba(18,184,134,.4);border-radius:50%;
  transition:transform .28s ease,background-color .28s ease;
}
.accordion-button:not(.collapsed)::after{transform:rotate(45deg);background:rgba(18,184,134,.14)}
.accordion-item:has(.accordion-button:not(.collapsed)){border-left:3px solid var(--brand)}
.accordion-body{padding:0 22px 24px 20px;font-size:16px;line-height:1.8;color:var(--muted);max-width:72ch}

/* ============ 内容图文块 ============ */
.split{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:44px;align-items:center}
.split .figure{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-2);aspect-ratio:16/11}
.split .figure img{width:100%;height:100%;object-fit:cover}
.split-text h2{margin-bottom:16px}
.split-text p{color:var(--muted)}
.mini-metrics{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
@media (max-width:991.98px){
  .split{grid-template-columns:1fr;gap:28px}
}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:28px;
  background:var(--grad);color:#fff;padding:52px 48px;
  box-shadow:0 24px 60px rgba(15,26,23,.18);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.13) 0 2px,transparent 2px 16px);
  opacity:.55;pointer-events:none;
}
.cta-inner{position:relative;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,420px);gap:40px;align-items:center}
.cta-inner h2{color:#fff;margin-bottom:12px}
.cta-inner p{color:rgba(255,255,255,.88);font-size:16px;margin:0;max-width:52ch}
.cta-form{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.35);border-radius:var(--r-lg);padding:24px}
.cta-form .field{margin-bottom:14px}
.cta-form label{display:block;font-size:13px;color:rgba(255,255,255,.9);margin-bottom:6px}
.cta-form input,.cta-form select{
  width:100%;min-height:46px;padding:0 14px;border-radius:var(--r-sm);
  border:1px solid rgba(255,255,255,.5);background:#fff;color:var(--text);
}
.cta-form input:focus,.cta-form select:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(18,184,134,.35)}
.cta-form .btn{width:100%}
.cta-form .hint{font-size:12px;color:rgba(255,255,255,.82);margin:10px 0 0}
.req{color:var(--signal)}
@media (max-width:991.98px){
  .cta-band{padding:38px 26px;border-radius:22px}
  .cta-inner{grid-template-columns:1fr;gap:26px}
}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:rgba(255,255,255,.68);padding:64px 0 0;margin-top:var(--section)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:12px;color:#fff;font-size:18px;font-weight:700;margin-bottom:16px}
.footer-about{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:40ch}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col li{font-size:14px;color:rgba(255,255,255,.6)}
.footer-col a{color:rgba(255,255,255,.68);text-decoration:none}
.footer-col a:hover{color:var(--brand);text-decoration:underline}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}
@media (max-width:991.98px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
}
@media (max-width:575.98px){
  .footer-grid{grid-template-columns:1fr}
  .site-footer{padding-top:48px}
  .section{padding:58px 0}
}