/* roulang page: index */
:root{
  --ink-900:#12161B;
  --ink-700:#2A3038;
  --ink-500:#5C646E;
  --ink-300:#A6ADB6;
  --line:#E5E7EA;
  --paper:#FAFAF8;
  --surface:#FFFFFF;
  --brand:#00C88C;
  --brand-deep:#00996B;
  --brand-soft:#E9FAF4;
  --accent:#FF7A2F;
  --accent-soft:#FFF1E7;
  --dark:#0E1216;
  --radius-btn:10px;
  --radius-card:14px;
  --radius-img:12px;
  --radius-badge:6px;
  --shadow-hover:0 8px 24px rgba(18,22,27,.08);
  --ease:cubic-bezier(.4,0,.2,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-700);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  padding-bottom:96px;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.container{padding:0 32px;}}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(250,250,248,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  display:flex;align-items:center;gap:20px;height:56px;
}
@media (min-width:1024px){.nav-inner{height:64px;gap:28px;}}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:30px;height:30px;border-radius:9px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-deep) 100%);
  display:flex;align-items:center;justify-content:center;color:#06231A;
  border:1px solid rgba(255,255,255,.35);
}
.logo-mark svg{width:16px;height:16px;}
.logo-text{display:flex;flex-direction:column;line-height:1.12;}
.logo-text b{font-size:15px;font-weight:700;color:var(--ink-900);letter-spacing:-.01em;white-space:nowrap;}
.logo-text span{font-size:10.5px;letter-spacing:.16em;color:var(--ink-300);}
.nav-links{display:none;}
@media (min-width:1024px){
  .nav-links{display:flex;align-items:center;gap:4px;flex:1 1 auto;}
  .nav-link{
    position:relative;display:inline-flex;align-items:center;height:64px;
    padding:0 12px;font-size:14.5px;color:var(--ink-500);white-space:nowrap;
    transition:color .2s var(--ease);
  }
  .nav-link::after{
    content:"";position:absolute;left:12px;right:12px;bottom:14px;height:2px;
    background:var(--brand);transform:scaleX(0);transform-origin:left;
    transition:transform .22s var(--ease);
  }
  .nav-link:hover{color:var(--ink-900);}
  .nav-link:hover::after{transform:scaleX(1);}
  .nav-link.active{color:var(--ink-900);font-weight:600;}
  .nav-link.active::after{transform:scaleX(1);}
}
.nav-right{display:flex;align-items:center;gap:10px;margin-left:auto;}
.nav-search{display:none;}
@media (min-width:1024px){
  .nav-search{
    display:flex;align-items:center;gap:8px;width:200px;height:40px;
    padding:0 12px;border:1px solid var(--line);border-radius:var(--radius-btn);
    background:var(--surface);transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(0,200,140,.12);}
  .nav-search svg{width:16px;height:16px;color:var(--ink-300);flex:0 0 auto;}
  .nav-search input{border:0;outline:0;background:transparent;width:100%;font-size:13.5px;}
  .nav-search input::placeholder{color:var(--ink-300);}
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 18px;border-radius:var(--radius-btn);
  font-size:14.5px;font-weight:600;line-height:1;cursor:pointer;border:1px solid transparent;
  transition:background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
  white-space:nowrap;
}
@media (min-width:1024px){.btn{height:40px;}}
.btn svg{width:16px;height:16px;transition:transform .22s var(--ease);}
.btn:hover svg{transform:translateX(3px);}
.btn-primary{background:var(--brand);color:#05241A;}
.btn-primary:hover{background:var(--brand-deep);color:#FFFFFF;}
.btn-outline{border-color:var(--line);background:var(--surface);color:var(--ink-700);}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-deep);}
.btn-ghost{background:transparent;color:var(--ink-700);padding:0 12px;}
.btn-ghost:hover{color:var(--brand-deep);}
.btn-dark-outline{border-color:rgba(255,255,255,.22);background:transparent;color:#EDF1F4;}
.btn-dark-outline:hover{border-color:var(--brand);color:#FFFFFF;background:rgba(0,200,140,.12);}
.nav-desktop-only{display:none;}
@media (min-width:1024px){.nav-desktop-only{display:inline-flex;}}
.burger{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius-btn);
  background:var(--surface);cursor:pointer;
}
@media (min-width:1024px){.burger{display:none;}}
.burger svg{width:20px;height:20px;color:var(--ink-700);}
.drawer{
  position:fixed;inset:0 0 0 auto;width:min(88vw,340px);z-index:90;
  background:var(--surface);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .28s var(--ease);
  padding:20px;display:flex;flex-direction:column;gap:18px;overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-mask{
  position:fixed;inset:0;background:rgba(14,18,22,.42);z-index:80;
  opacity:0;pointer-events:none;transition:opacity .28s var(--ease);
}
.drawer-mask.open{opacity:1;pointer-events:auto;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-close{width:40px;height:40px;border:1px solid var(--line);border-radius:var(--radius-btn);background:var(--surface);cursor:pointer;display:flex;align-items:center;justify-content:center;}
.drawer-close svg{width:18px;height:18px;}
.drawer-search{display:flex;align-items:center;gap:8px;height:44px;padding:0 12px;border:1px solid var(--line);border-radius:var(--radius-btn);background:var(--paper);}
.drawer-search svg{width:16px;height:16px;color:var(--ink-300);}
.drawer-search input{border:0;outline:0;background:transparent;width:100%;font-size:14px;}
.drawer-list{display:flex;flex-direction:column;}
.drawer-list a{padding:13px 2px;border-bottom:1px solid var(--line);font-size:15px;color:var(--ink-700);}
.drawer-list a.active{color:var(--brand-deep);font-weight:600;}
.drawer-actions{display:flex;flex-direction:column;gap:10px;margin-top:auto;padding-top:12px;}

/* ---------- hero ---------- */
.hero{
  position:relative;background:var(--dark);color:#EDF1F4;overflow:hidden;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:22px 22px;opacity:.85;pointer-events:none;
}
.hero-inner{position:relative;padding:56px 0 56px;}
@media (min-width:1024px){.hero-inner{padding:88px 0 80px;}}
.hero-grid{display:grid;gap:36px;}
@media (min-width:1024px){
  .hero-grid{grid-template-columns:7fr 5fr;gap:56px;align-items:center;}
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.16em;font-weight:600;color:var(--brand);
  padding:6px 12px;border:1px solid rgba(0,200,140,.32);border-radius:var(--radius-badge);
  background:rgba(0,200,140,.08);
}
.hero h1{
  margin-top:20px;
  font-size:clamp(2.125rem,5.2vw,4rem);
  line-height:1.1;letter-spacing:-.02em;font-weight:700;color:#FFFFFF;
}
.hero-sub{margin-top:16px;font-size:16px;line-height:1.75;color:#B9C1CA;max-width:34em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.trust-list{
  display:grid;gap:0;margin-top:34px;border-top:1px solid rgba(255,255,255,.1);
}
@media (min-width:768px){.trust-list{grid-template-columns:repeat(3,1fr);}}
.trust-item{
  padding:16px 0 4px;border-bottom:1px solid rgba(255,255,255,.1);
}
@media (min-width:768px){
  .trust-item{border-bottom:0;border-right:1px solid rgba(255,255,255,.1);padding:16px 18px 4px 0;}
  .trust-item:last-child{border-right:0;}
}
.trust-item b{display:block;font-size:14.5px;color:#FFFFFF;font-weight:600;}
.trust-item span{display:block;margin-top:4px;font-size:13px;color:#8E979F;}
.hero-figure{position:relative;}
.hero-figure img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-img);
  border:1px solid rgba(255,255,255,.12);
}
.hero-figure figcaption{
  margin-top:10px;font-size:12.5px;color:#8E979F;letter-spacing:.02em;
}
.hero-search{
  margin-top:40px;background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-card);
  padding:16px;display:grid;gap:12px;
}
@media (min-width:768px){
  .hero-search{grid-template-columns:1fr auto;align-items:center;padding:14px 14px 14px 20px;}
}
.hero-search-field{display:flex;align-items:center;gap:12px;min-width:0;}
.hero-search-field svg{width:18px;height:18px;color:var(--brand);flex:0 0 auto;}
.hero-search-field input{
  width:100%;border:0;outline:0;background:transparent;color:#EDF1F4;font-size:14.5px;
}
.hero-search-field input::placeholder{color:#7C858D;}
.hero-search-hint{font-size:12.5px;color:#8E979F;letter-spacing:.04em;}

/* ---------- sections ---------- */
.section{padding:56px 0;}
@media (min-width:768px){.section{padding:76px 0;}}
@media (min-width:1024px){.section{padding:104px 0;}}
.section-head{display:flex;flex-wrap:wrap;gap:14px;align-items:flex-end;justify-content:space-between;margin-bottom:32px;}
@media (min-width:1024px){.section-head{margin-bottom:48px;}}
.section-tag{
  display:inline-block;font-size:12px;letter-spacing:.16em;font-weight:600;
  color:var(--brand-deep);margin-bottom:10px;
}
.section-title{
  font-size:clamp(1.5rem,2.6vw,2.25rem);line-height:1.22;font-weight:700;
  color:var(--ink-900);letter-spacing:-.01em;
}
.section-desc{margin-top:10px;font-size:15px;color:var(--ink-500);max-width:46em;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;
  color:var(--brand-deep);background-image:linear-gradient(currentColor,currentColor);
  background-repeat:no-repeat;background-position:0 100%;background-size:0% 1px;
  transition:background-size .26s var(--ease);
}
.text-link:hover{background-size:100% 1px;}
.text-link svg{width:15px;height:15px;}

/* ---------- feature split ---------- */
.split{display:grid;gap:32px;}
@media (min-width:1024px){.split{grid-template-columns:4fr 8fr;gap:64px;}}
.split-left h2{font-size:clamp(1.5rem,2.6vw,2.25rem);line-height:1.22;font-weight:700;color:var(--ink-900);}
.split-left p{margin-top:14px;color:var(--ink-500);font-size:15px;}
.feature-list li{
  display:grid;gap:12px;padding:26px 0;border-bottom:1px solid var(--line);
}
@media (min-width:768px){.feature-list li{grid-template-columns:64px 1fr;gap:24px;}}
.feature-list li:first-child{border-top:1px solid var(--line);}
.feature-num{font-size:12px;letter-spacing:.16em;font-weight:700;color:var(--brand);padding-top:4px;}
.feature-list h3{font-size:1.125rem;line-height:1.4;font-weight:600;color:var(--ink-900);}
.feature-list p{margin-top:8px;font-size:14.5px;color:var(--ink-500);max-width:62ch;}

/* ---------- cards ---------- */
.card-grid{display:grid;gap:20px;}
@media (min-width:640px){.card-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(4,1fr);gap:24px;}}
.card{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;
  transition:box-shadow .22s var(--ease),transform .22s var(--ease),border-color .22s var(--ease);
  display:flex;flex-direction:column;
}
.card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:#D9DDE2;}
.card-media{overflow:hidden;border-bottom:1px solid var(--line);}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s var(--ease);}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:1.0625rem;line-height:1.4;font-weight:600;color:var(--ink-900);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-body p{font-size:14px;color:var(--ink-500);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.card-meta{
  margin-top:auto;display:flex;align-items:center;gap:10px;padding-top:12px;
  border-top:1px solid var(--line);font-size:12.5px;color:var(--ink-300);
}
.badge{
  display:inline-flex;align-items:center;height:22px;padding:0 8px;border-radius:var(--radius-badge);
  font-size:12px;letter-spacing:.06em;font-weight:600;
}
.badge-brand{background:var(--brand-soft);color:var(--brand-deep);}
.badge-accent{background:var(--accent-soft);color:#C2521A;}
.badge-grey{background:#F1F3F5;color:var(--ink-500);}
.card-link{position:absolute;inset:0;z-index:2;}
.card-link span{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);}
.arrow{width:15px;height:15px;color:var(--ink-300);margin-left:auto;transition:transform .22s var(--ease),color .22s var(--ease);}
.card:hover .arrow{transform:translateX(3px);color:var(--brand-deep);}

/* ---------- demo / timeline ---------- */
.demo-wrap{display:grid;gap:36px;}
@media (min-width:1024px){.demo-wrap{grid-template-columns:6fr 6fr;gap:56px;align-items:center;}}
.demo-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-img);border:1px solid var(--line);}
.timeline{position:relative;display:grid;gap:24px;}
@media (min-width:768px){.timeline{grid-template-columns:repeat(4,1fr);gap:20px;}}
.timeline::before{
  content:"";position:absolute;left:7px;top:8px;bottom:8px;width:1px;background:var(--line);
}
@media (min-width:768px){
  .timeline::before{left:8px;right:8px;top:7px;bottom:auto;width:auto;height:1px;}
}
.step{position:relative;padding-left:32px;}
@media (min-width:768px){.step{padding-left:0;padding-top:30px;}}
.step::before{
  content:"";position:absolute;left:0;top:5px;width:15px;height:15px;border-radius:50%;
  background:var(--surface);border:2px solid var(--brand);
}
@media (min-width:768px){.step::before{left:0;top:0;}}
.step b{display:block;font-size:15px;color:var(--ink-900);font-weight:600;}
.step span{display:block;margin-top:6px;font-size:13.5px;color:var(--ink-500);}

/* ---------- stats & quotes ---------- */
.stats{
  display:grid;gap:0;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;
}
@media (min-width:640px){.stats{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.stats{grid-template-columns:repeat(4,1fr);}}
.stat{padding:26px 24px;border-bottom:1px solid var(--line);}
@media (min-width:640px){.stat:nth-child(2n){border-right:0;} .stat{border-right:1px solid var(--line);}}
@media (min-width:1024px){.stat{border-bottom:0;}}
.stat strong{display:block;font-size:clamp(1.75rem,3vw,2.25rem);font-weight:700;color:var(--ink-900);letter-spacing:-.02em;}
.stat span{display:block;margin-top:6px;font-size:13.5px;color:var(--ink-500);}
.quote-grid{display:grid;gap:20px;margin-top:24px;}
@media (min-width:768px){.quote-grid{grid-template-columns:repeat(2,1fr);}}
.quote{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 24px;display:flex;flex-direction:column;gap:14px;
}
.quote p{font-size:14.5px;color:var(--ink-700);}
.quote footer{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-300);}
.quote .dot{width:6px;height:6px;border-radius:50%;background:var(--brand);}
.brand-wall{
  margin-top:32px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px 28px;
}
.brand-wall span{font-size:13.5px;letter-spacing:.1em;color:var(--ink-300);font-weight:600;}

/* ---------- cms bento ---------- */
.bento{display:grid;gap:20px;}
@media (min-width:1024px){.bento{grid-template-columns:7fr 5fr;gap:24px;align-items:stretch;}}
.bento-side{display:grid;gap:20px;}
@media (min-width:768px){.bento-side{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.bento-side{grid-template-columns:1fr;gap:20px;}}
.lead-card .card-media img{aspect-ratio:16/9;}
.lead-card .card-body h3{font-size:1.25rem;}
.mini-card{flex-direction:row;align-items:stretch;}
.mini-card .card-media{width:132px;flex:0 0 132px;border-bottom:0;border-right:1px solid var(--line);}
.mini-card .card-media img{height:100%;aspect-ratio:auto;object-fit:cover;}
.mini-card .card-body{padding:14px 16px;gap:8px;}
.mini-card .card-body h3{font-size:.975rem;}
.mini-card .card-body p{font-size:13px;-webkit-line-clamp:2;}
.mini-card .card-meta{padding-top:10px;font-size:12px;}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius-card);min-height:200px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  text-align:center;padding:32px 24px;background:var(--surface);
}
.empty-state p{font-size:14.5px;color:var(--ink-500);}

/* ---------- faq ---------- */
.faq-wrap{max-width:720px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-q{
  width:100%;background:transparent;border:0;cursor:pointer;text-align:left;
  display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:22px 0;font-size:16px;font-weight:600;color:var(--ink-900);line-height:1.5;
}
.faq-icon{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--ink-500);
  transition:transform .24s var(--ease),border-color .24s var(--ease),color .24s var(--ease);
  margin-top:2px;
}
.faq-icon svg{width:12px;height:12px;}
.faq-item.open .faq-icon{transform:rotate(45deg);border-color:var(--brand);color:var(--brand-deep);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
.faq-a p{max-width:62ch;padding:0 44px 22px 0;font-size:14.5px;color:var(--ink-500);}

/* ---------- cta band ---------- */
.cta-band{background:var(--dark);color:#EDF1F4;border-top:1px solid rgba(255,255,255,.08);}
.cta-inner{
  padding:56px 0;display:grid;gap:24px;align-items:center;
}
@media (min-width:1024px){
  .cta-inner{padding:72px 0;grid-template-columns:7fr 5fr;gap:48px;}
}
.cta-inner h2{font-size:clamp(1.5rem,2.6vw,2.25rem);line-height:1.22;font-weight:700;color:#FFFFFF;}
.cta-inner p{margin-top:12px;color:#A9B2BA;font-size:15px;max-width:40em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
@media (min-width:1024px){.cta-actions{justify-content:flex-end;}}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:#98A1A9;padding:56px 0 32px;border-top:1px solid rgba(255,255,255,.08);}
.footer-grid{display:grid;gap:32px;}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand b{color:#FFFFFF;font-size:15px;}
.site-footer p{font-size:13.5px;line-height:1.8;}
.footer-title{font-size:13px;letter-spacing:.16em;font-weight:600;color:#FFFFFF;margin-bottom:14px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:13.5px;color:#98A1A9;transition:color .2s var(--ease);}
.footer-links a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:12.5px;color:#6E777E;
}
.footer-bottom a{color:#6E777E;}
.footer-bottom a:hover{color:var(--brand);}

/* ---------- fixed bar & to top ---------- */
.fixed-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;height:64px;
  background:rgba(255,255,255,.96);backdrop-filter:blur(10px);
  border-top:1px solid var(--line);
  transform:translateY(110%);transition:transform .3s var(--ease);
}
.fixed-bar.show{transform:translateY(0);}
.fixed-inner{height:64px;display:flex;align-items:center;justify-content:space-between;gap:16px;}
.fixed-text{font-size:13.5px;color:var(--ink-700);font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.fixed-actions{display:flex;gap:10px;}
.fixed-actions .btn{height:40px;font-size:13.5px;}
@media (max-width:639px){
  .fixed-text{display:none;}
  .fixed-actions{width:100%;}
  .fixed-actions .btn{flex:1 1 0;}
}
.to-top{
  position:fixed;right:20px;bottom:84px;z-index:65;width:44px;height:44px;border-radius:50%;
  background:var(--surface);border:1px solid var(--line);cursor:pointer;
  display:flex;align-items:center;justify-content:center;color:var(--ink-700);
  opacity:0;pointer-events:none;transition:opacity .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.to-top.show{opacity:1;pointer-events:auto;}
.to-top:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.to-top svg{width:18px;height:18px;}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.is-visible{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{transform:none;transition:opacity .2s linear;}
  html{scroll-behavior:auto;}
  .card:hover{transform:none;}
  .card:hover .card-media img{transform:none;}
}

/* roulang page: article */
:root{
  --ink-900:#12161B;--ink-700:#2A3038;--ink-500:#5C646E;--ink-300:#A6ADB6;
  --line:#E5E7EA;--paper:#FAFAF8;--surface:#FFFFFF;
  --brand:#00C88C;--brand-deep:#00996B;--accent:#FF7A2F;--dark:#0E1216;
  --r-btn:10px;--r-card:14px;--r-img:12px;--r-badge:6px;
  --shadow-hover:0 8px 24px rgba(18,22,27,.08);
  --ease:cubic-bezier(.4,0,.2,1);
  --sec-lg:112px;--sec-md:76px;--sec-sm:60px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;padding-bottom:88px;background:var(--paper);color:var(--ink-900);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
ul,ol{margin:0;}
h1,h2,h3,h4,p{margin:0;}
.num{font-variant-numeric:tabular-nums;}
.container{max-width:1200px;margin:0 auto;padding:0 20px;}
@media(min-width:768px){.container{padding:0 32px;}}
.section{padding:var(--sec-sm) 0;}
@media(min-width:768px){.section{padding:var(--sec-md) 0;}}
@media(min-width:1024px){.section{padding:var(--sec-lg) 0;}}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;}
.sec-head h2{font-size:clamp(1.5rem,2.6vw,2.25rem);line-height:1.22;font-weight:700;letter-spacing:-.01em;}
.sec-head p{font-size:.875rem;color:var(--ink-500);margin-top:8px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:.875rem;font-weight:600;color:var(--brand-deep);}
.link-arrow svg{width:16px;height:16px;transition:transform .22s var(--ease);}
.link-arrow:hover svg{transform:translateX(3px);}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(250,250,248,.86);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);}
.nav-inner{display:flex;align-items:center;gap:20px;height:56px;}
@media(min-width:1024px){.nav-inner{height:64px;gap:24px;}}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;min-width:0;}
.logo-mark{width:34px;height:34px;border-radius:10px;background:var(--dark);color:var(--brand);display:grid;place-items:center;flex:0 0 auto;}
.logo-mark svg{width:18px;height:18px;}
.logo-text{display:flex;flex-direction:column;line-height:1.15;min-width:0;}
.logo-text b{font-size:15px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;}
.logo-text span{font-size:11px;color:var(--ink-500);letter-spacing:.06em;white-space:nowrap;}
@media(max-width:520px){.logo-text span{display:none;}.logo-text b{font-size:13.5px;}}
.nav-links{display:none;list-style:none;margin:0;padding:0;gap:22px;flex:1 1 auto;}
@media(min-width:1024px){.nav-links{display:flex;}}
.nav-link{position:relative;display:inline-block;padding:8px 0;font-size:14.5px;color:var(--ink-700);white-space:nowrap;transition:color .2s;}
.nav-link::after{content:"";position:absolute;left:0;bottom:2px;height:2px;width:0;background:var(--brand);transition:width .22s var(--ease);}
.nav-link:hover{color:var(--ink-900);}
.nav-link:hover::after{width:100%;}
.nav-link.active{font-weight:600;color:var(--ink-900);}
.nav-link.active::after{width:100%;}
.nav-right{display:flex;align-items:center;gap:10px;margin-left:auto;}
.nav-search{display:none;align-items:center;gap:8px;height:38px;padding:0 12px;border:1px solid var(--line);border-radius:var(--r-btn);background:#fff;width:200px;transition:border-color .2s,box-shadow .2s;}
@media(min-width:1200px){.nav-search{display:flex;}}
.nav-search svg{width:16px;height:16px;color:var(--ink-300);flex:0 0 auto;}
.nav-search input{border:0;outline:0;background:transparent;width:100%;font-size:13.5px;}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(0,200,140,.14);}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:40px;padding:0 16px;border:1px solid transparent;border-radius:var(--r-btn);font-size:14px;font-weight:600;cursor:pointer;white-space:nowrap;transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);}
.btn svg{width:16px;height:16px;transition:transform .22s var(--ease);}
.btn:hover svg{transform:translateX(3px);}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.btn-primary{background:var(--brand);color:#06231A;}
.btn-primary:hover{background:var(--brand-deep);color:#fff;}
.btn-outline{border-color:var(--line);background:#fff;color:var(--ink-900);}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-deep);}
.btn-ghost{background:transparent;color:var(--ink-700);}
.btn-ghost:hover{color:var(--brand-deep);}
.btn-lg{height:46px;padding:0 22px;font-size:15px;}
.nav-desktop-only{display:none;}
@media(min-width:1024px){.nav-desktop-only{display:inline-flex;}}
.burger{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r-btn);background:#fff;cursor:pointer;}
.burger svg{width:20px;height:20px;}
@media(min-width:1024px){.burger{display:none;}}

/* ---------- drawer ---------- */
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);z-index:80;background:var(--surface);border-left:1px solid var(--line);box-shadow:-12px 0 40px rgba(18,22,27,.12);transform:translateX(105%);transition:transform .28s var(--ease);display:flex;flex-direction:column;padding:18px 20px 28px;overflow-y:auto;}
.drawer.open{transform:translateX(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-top strong{font-size:15px;}
.drawer-close{width:36px;height:36px;border:1px solid var(--line);border-radius:10px;background:#fff;display:grid;place-items:center;cursor:pointer;}
.drawer-close svg{width:18px;height:18px;}
.drawer-search{display:flex;align-items:center;gap:8px;height:42px;padding:0 12px;border:1px solid var(--line);border-radius:var(--r-btn);background:var(--paper);margin-bottom:18px;}
.drawer-search svg{width:16px;height:16px;color:var(--ink-300);}
.drawer-search input{border:0;outline:0;background:transparent;width:100%;font-size:14px;}
.drawer-nav{list-style:none;padding:0;margin:0 0 22px;border-top:1px solid var(--line);}
.drawer-nav li{border-bottom:1px solid var(--line);}
.drawer-nav a{display:flex;align-items:center;justify-content:space-between;padding:14px 2px;font-size:15px;color:var(--ink-700);}
.drawer-nav a.active{color:var(--brand-deep);font-weight:600;}
.drawer-nav svg{width:16px;height:16px;color:var(--ink-300);}
.drawer-actions{display:grid;gap:10px;margin-top:auto;}
.drawer-actions .btn{width:100%;height:44px;}
.scrim{position:fixed;inset:0;background:rgba(14,18,22,.42);z-index:70;opacity:0;visibility:hidden;transition:opacity .28s var(--ease),visibility .28s;}
.scrim.open{opacity:1;visibility:visible;}

/* ---------- breadcrumb ---------- */
.crumb{padding:22px 0 6px;}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;padding:0;font-size:13px;color:var(--ink-500);}
.crumb li{display:inline-flex;align-items:center;gap:8px;min-width:0;}
.crumb li+li::before{content:"/";color:var(--ink-300);}
.crumb a{color:var(--ink-500);transition:color .2s;}
.crumb a:hover{color:var(--brand-deep);}
.crumb li[aria-current]{color:var(--ink-700);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:52vw;}

/* ---------- article head ---------- */
.article-head{padding:10px 0 30px;border-bottom:1px solid var(--line);}
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:var(--r-badge);font-size:12px;font-weight:600;letter-spacing:.06em;}
.badge-brand{background:rgba(0,200,140,.12);color:#00714F;}
.badge-accent{background:rgba(255,122,47,.14);color:#A8471A;}
.badge-muted{background:#F1F3F5;color:var(--ink-500);}
.article-title{font-size:clamp(1.75rem,3.6vw,2.5rem);line-height:1.22;font-weight:700;letter-spacing:-.02em;margin:16px 0 18px;max-width:16ch;}
@media(max-width:640px){.article-title{max-width:none;}}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px 18px;font-size:13.5px;color:var(--ink-500);}
.article-meta span{display:inline-flex;align-items:center;gap:6px;}
.article-meta svg{width:15px;height:15px;color:var(--ink-300);}

/* ---------- article body ---------- */
.reading-wrap{padding:44px 0 0;}
.article-body{max-width:760px;font-size:17px;line-height:1.85;color:var(--ink-700);}
.article-body h2{position:relative;font-size:clamp(1.25rem,2.2vw,1.6rem);line-height:1.35;font-weight:700;color:var(--ink-900);margin:2.4em 0 .8em;padding-left:36px;}
.article-body h2::before{content:"";position:absolute;left:0;top:.62em;width:24px;height:3px;border-radius:2px;background:var(--brand);}
.article-body h3{font-size:1.125rem;line-height:1.4;font-weight:600;color:var(--ink-900);margin:1.9em 0 .6em;}
.article-body p{margin:0 0 1.1em;}
.article-body ul,.article-body ol{padding-left:1.35em;margin:0 0 1.2em;}
.article-body li{margin:.45em 0;}
.article-body blockquote{margin:1.7em 0;padding:16px 20px;border-left:3px solid var(--brand);background:#fff;border-radius:0 var(--r-img) var(--r-img) 0;color:var(--ink-700);}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-img);margin:1.7em 0;}
.article-body strong{color:var(--ink-900);}
.article-body a{color:var(--brand-deep);background-image:linear-gradient(currentColor,currentColor);background-repeat:no-repeat;background-size:0 1px;background-position:0 100%;transition:background-size .25s var(--ease);}
.article-body a:hover{background-size:100% 1px;}
.article-body table{display:block;width:100%;overflow-x:auto;border-collapse:collapse;margin:1.6em 0;}
.article-body th,.article-body td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--line);font-size:15px;}
.article-body pre{overflow-x:auto;background:var(--dark);color:#E8ECEF;padding:16px 18px;border-radius:var(--r-img);font-size:14px;line-height:1.7;}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.92em;}
.empty-state{max-width:760px;border:1px dashed var(--line);border-radius:var(--r-card);min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;text-align:center;padding:32px 24px;background:#fff;}
.empty-state p{color:var(--ink-500);font-size:15px;}

/* ---------- article foot ---------- */
.article-foot{max-width:760px;margin-top:44px;padding-top:26px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{display:inline-flex;align-items:center;padding:5px 11px;border:1px solid var(--line);border-radius:var(--r-badge);font-size:12px;color:var(--ink-500);background:#fff;transition:border-color .2s,color .2s;}
.tag:hover{border-color:var(--brand);color:var(--brand-deep);}

/* ---------- cards ---------- */
.grid-3{display:grid;grid-template-columns:1fr;gap:24px;}
@media(min-width:768px){.grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:1024px){.grid-3{grid-template-columns:repeat(3,minmax(0,1fr));}}
.card{position:relative;display:flex;flex-direction:column;height:100%;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:transform .22s var(--ease),box-shadow .22s var(--ease);}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.card-cover{aspect-ratio:16/10;overflow:hidden;background:#EDEFF2;}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.card:hover .card-cover img{transform:scale(1.03);}
.card-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.card-body h3{font-size:1.125rem;line-height:1.4;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-body p{font-size:14px;color:var(--ink-500);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.card-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:12.5px;color:var(--ink-300);}
.card-meta svg{width:16px;height:16px;color:var(--ink-300);transition:transform .22s var(--ease),color .22s;}
.card:hover .card-meta svg{transform:translateX(3px);color:var(--brand-deep);}
.card-link{position:absolute;inset:0;z-index:2;}

/* ---------- cta band ---------- */
.cta-band{background:var(--dark);border:1px solid rgba(255,255,255,.08);border-radius:16px;padding:44px 28px;}
@media(min-width:768px){.cta-band{padding:56px 48px;}}
.cta-band h2{color:#fff;font-size:clamp(1.4rem,2.4vw,2rem);line-height:1.25;font-weight:700;max-width:20ch;}
.cta-band p{color:rgba(255,255,255,.72);margin-top:12px;font-size:15px;max-width:52ch;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.cta-actions .btn-outline{background:transparent;border-color:rgba(255,255,255,.24);color:#fff;}
.cta-actions .btn-outline:hover{border-color:var(--brand);color:var(--brand);}
.cta-split{display:grid;gap:28px;}
@media(min-width:1024px){.cta-split{grid-template-columns:7fr 5fr;align-items:center;}}
.cta-figure{border-radius:var(--r-img);overflow:hidden;border:1px solid rgba(255,255,255,.08);}
.cta-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10;}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);margin-top:0;padding:64px 0 0;}
.foot-grid{display:grid;grid-template-columns:1fr;gap:34px;}
@media(min-width:768px){.foot-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:1024px){.foot-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}}
.foot-brand b{color:#fff;font-size:16px;letter-spacing:-.01em;}
.foot-brand p{font-size:13.5px;margin-top:12px;max-width:34ch;color:rgba(255,255,255,.6);}
.foot-col h3{color:#fff;font-size:13px;letter-spacing:.16em;font-weight:600;margin-bottom:16px;}
.foot-col ul{list-style:none;padding:0;display:grid;gap:11px;}
.foot-col a{font-size:14px;color:rgba(255,255,255,.72);transition:color .2s;}
.foot-col a:hover{color:var(--brand);}
.foot-note{font-size:13px;color:rgba(255,255,255,.55);line-height:1.8;}
.foot-bottom{margin-top:48px;border-top:1px solid rgba(255,255,255,.1);padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:10px 20px;justify-content:space-between;font-size:12.5px;color:rgba(255,255,255,.45);}

/* ---------- fixed bar & to top ---------- */
.fixed-bar{position:fixed;left:0;right:0;bottom:0;z-index:65;background:rgba(255,255,255,.96);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-top:1px solid var(--line);transform:translateY(110%);transition:transform .3s var(--ease);}
.fixed-bar.show{transform:translateY(0);}
.fixed-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px;padding:10px 0;}
.fixed-inner p{font-size:14px;font-weight:600;color:var(--ink-900);display:flex;align-items:center;gap:10px;}
.fixed-inner p .dot{width:8px;height:8px;border-radius:50%;background:var(--brand);flex:0 0 auto;}
.fixed-actions{display:flex;gap:10px;}
@media(max-width:640px){.fixed-inner{flex-direction:column;align-items:stretch;gap:10px;padding:12px 0;}.fixed-actions .btn{flex:1 1 0;}}
.to-top{position:fixed;right:20px;bottom:86px;z-index:64;width:44px;height:44px;border-radius:50%;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-hover);display:grid;place-items:center;cursor:pointer;opacity:0;visibility:hidden;transition:opacity .25s,visibility .25s;}
.to-top.show{opacity:1;visibility:visible;}
.to-top svg{width:18px;height:18px;color:var(--ink-700);}

/* ---------- motion ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
.reveal.in{opacity:1;transform:none;}
@media(prefers-reduced-motion:reduce){
  .reveal{transform:none;transition:opacity .3s linear;}
  html{scroll-behavior:auto;}
  .card:hover{transform:none;}
  .card:hover .card-cover img{transform:none;}
}

/* roulang page: category1 */
:root{
  --ink-900:#12161B;
  --ink-700:#2A3038;
  --ink-500:#5C646E;
  --ink-300:#A6ADB6;
  --line:#E5E7EA;
  --paper:#FAFAF8;
  --surface:#FFFFFF;
  --brand:#00C88C;
  --brand-deep:#00996B;
  --brand-hover:#00B37E;
  --brand-ink:#052E22;
  --accent:#FF7A2F;
  --dark:#0E1216;
  --radius-btn:10px;
  --radius-card:14px;
  --radius-img:12px;
  --radius-badge:6px;
  --shadow-card:0 8px 24px rgba(18,22,27,.08);
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{margin:0;background:var(--paper);color:var(--ink-700);font-family:var(--font-cn);font-size:16px;line-height:1.75;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;font-size:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){.container{padding:0 32px;}}
.section{padding:60px 0;}
@media (min-width:768px){.section{padding:80px 0;}}
@media (min-width:1024px){.section{padding:104px 0;}}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:36px;}
@media (min-width:1024px){.section-head{margin-bottom:52px;}}
.section-title{font-size:clamp(1.5rem,2.6vw,2.25rem);line-height:1.22;font-weight:700;color:var(--ink-900);letter-spacing:-0.01em;}
.section-desc{margin-top:14px;color:var(--ink-500);font-size:1rem;}
.eyebrow{display:inline-block;font-size:12px;font-weight:600;letter-spacing:.16em;color:var(--brand-deep);margin-bottom:14px;}
.eyebrow-invert{color:var(--brand);}
.tabular{font-variant-numeric:tabular-nums;}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--radius-badge);font-size:12px;font-weight:600;letter-spacing:.06em;}
.badge-brand{background:rgba(0,200,140,.14);color:#00795A;}
.badge-amber{background:rgba(255,122,47,.14);color:#B14A0A;}
.badge-neutral{background:#F1F3F5;color:var(--ink-500);}
.badge-dark{background:rgba(255,255,255,.08);color:#D6DBE0;border:1px solid rgba(255,255,255,.14);}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:40px;padding:0 16px;border-radius:var(--radius-btn);font-size:14px;font-weight:600;line-height:1;border:1px solid transparent;background:none;cursor:pointer;transition:background-color .22s cubic-bezier(.4,0,.2,1),color .22s cubic-bezier(.4,0,.2,1),border-color .22s cubic-bezier(.4,0,.2,1),transform .22s cubic-bezier(.4,0,.2,1);}
.btn svg{width:16px;height:16px;flex:none;transition:transform .22s cubic-bezier(.4,0,.2,1);}
.btn:hover svg{transform:translateX(3px);}
.btn-primary{background:var(--brand);color:var(--brand-ink);}
.btn-primary:hover{background:var(--brand-hover);}
.btn-outline{border-color:var(--line);color:var(--ink-700);background:var(--surface);}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-deep);}
.btn-ghost{color:var(--ink-700);padding:0 6px;background-image:linear-gradient(currentColor,currentColor);background-repeat:no-repeat;background-size:0% 1px;background-position:0 100%;transition:background-size .22s cubic-bezier(.4,0,.2,1),color .22s;}
.btn-ghost:hover{color:var(--brand-deep);background-size:100% 1px;}
.btn-lg{height:48px;padding:0 22px;font-size:15px;}
.btn-sm{height:36px;padding:0 14px;font-size:13px;}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(250,250,248,.86);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line);}
.nav-inner{display:flex;align-items:center;gap:20px;height:64px;}
.logo{display:flex;align-items:center;gap:10px;flex:none;}
.logo-mark{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:9px;background:rgba(0,200,140,.14);color:var(--brand-deep);border:1px solid rgba(0,200,140,.28);}
.logo-mark svg{width:19px;height:19px;}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-text b{font-size:15px;font-weight:700;color:var(--ink-900);letter-spacing:-.01em;}
.logo-text span{font-size:11px;color:var(--ink-500);letter-spacing:.04em;}
.nav-links{display:none;}
@media (min-width:1024px){
  .nav-links{display:flex;align-items:center;gap:2px;margin-left:8px;}
}
.nav-link{position:relative;display:inline-flex;align-items:center;height:64px;padding:0 12px;font-size:14px;color:var(--ink-700);transition:color .22s;}
.nav-link::after{content:"";position:absolute;left:12px;right:12px;bottom:14px;height:2px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .22s cubic-bezier(.4,0,.2,1);}
.nav-link:hover{color:var(--ink-900);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{font-weight:600;color:var(--ink-900);}
.nav-link.active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:10px;margin-left:auto;}
.nav-search{position:relative;display:none;}
@media (min-width:1180px){.nav-search{display:block;width:200px;}}
.nav-search svg{position:absolute;left:11px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:var(--ink-300);pointer-events:none;}
.nav-search input{width:100%;height:38px;padding:0 12px 0 34px;border:1px solid var(--line);border-radius:var(--radius-btn);background:var(--surface);font-size:13px;transition:border-color .22s,box-shadow .22s;}
.nav-search input::placeholder{color:var(--ink-300);}
.nav-search input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(0,200,140,.16);}
.nav-desktop-only{display:none;}
@media (min-width:1024px){.nav-desktop-only{display:inline-flex;}}
.burger{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border:1px solid var(--line);border-radius:var(--radius-btn);background:var(--surface);color:var(--ink-700);cursor:pointer;}
.burger svg{width:20px;height:20px;}
@media (min-width:1024px){.burger{display:none;}}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(14,18,22,.42);opacity:0;visibility:hidden;transition:opacity .28s;z-index:70;}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(88vw,360px);background:var(--surface);z-index:80;padding:22px;overflow-y:auto;transform:translateX(102%);transition:transform .3s cubic-bezier(.4,0,.2,1);box-shadow:-8px 0 32px rgba(18,22,27,.16);}
.drawer.open{transform:none;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-title{font-size:14px;font-weight:600;color:var(--ink-900);}
.drawer-close{width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:var(--radius-btn);background:var(--surface);cursor:pointer;}
.drawer-close svg{width:18px;height:18px;}
.drawer-search{position:relative;margin-bottom:20px;}
.drawer-search svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:var(--ink-300);}
.drawer-search input{width:100%;height:44px;padding:0 12px 0 36px;border:1px solid var(--line);border-radius:var(--radius-btn);background:var(--paper);font-size:14px;}
.drawer-search input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(0,200,140,.16);}
.drawer-nav{display:flex;flex-direction:column;border-top:1px solid var(--line);}
.drawer-nav a{display:flex;align-items:center;justify-content:space-between;padding:14px 2px;font-size:15px;color:var(--ink-700);border-bottom:1px solid var(--line);}
.drawer-nav a.active{color:var(--brand-deep);font-weight:600;}
.drawer-nav svg{width:16px;height:16px;color:var(--ink-300);}
.drawer-actions{display:grid;gap:10px;margin-top:22px;}
.drawer-actions .btn{width:100%;height:44px;}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding-top:22px;}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-500);}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"/";color:var(--ink-300);}
.breadcrumb a{transition:color .22s;}
.breadcrumb a:hover{color:var(--brand-deep);}
.breadcrumb li[aria-current]{color:var(--ink-900);font-weight:600;}

/* ---------- 页头 ---------- */
.page-head{padding:34px 0 44px;}
@media (min-width:1024px){.page-head{padding:44px 0 60px;}}
.page-title{margin:18px 0 16px;max-width:24ch;font-size:clamp(2.125rem,5.2vw,3.5rem);line-height:1.1;letter-spacing:-.02em;font-weight:700;color:var(--ink-900);}
.page-sub{max-width:56ch;color:var(--ink-500);font-size:1.0625rem;}
.search-panel{margin-top:32px;padding:16px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);display:flex;flex-wrap:wrap;gap:12px;align-items:center;}
.search-field{position:relative;flex:1 1 300px;min-width:0;}
.search-field svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);width:18px;height:18px;color:var(--ink-300);}
.search-input{width:100%;height:52px;padding:0 14px 0 44px;border:1px solid var(--line);border-radius:var(--radius-btn);background:var(--paper);font-size:15px;color:var(--ink-900);transition:border-color .22s,box-shadow .22s,background-color .22s;}
.search-input::placeholder{color:var(--ink-300);}
.search-input:focus{outline:none;background:var(--surface);border-color:var(--brand);box-shadow:0 0 0 3px rgba(0,200,140,.16);}
.search-panel .btn{height:52px;padding:0 24px;}
.field-hint{margin-top:12px;font-size:13px;color:var(--ink-500);}
.field-hint.is-error{color:#C0392B;}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;align-items:center;}
.chip-row .chip-label{font-size:12px;letter-spacing:.16em;font-weight:600;color:var(--ink-300);}
.chip{display:inline-flex;align-items:center;height:30px;padding:0 12px;border-radius:var(--radius-badge);border:1px solid var(--line);background:var(--surface);font-size:13px;color:var(--ink-500);transition:border-color .22s,color .22s,transform .22s;}
.chip:hover{border-color:var(--brand);color:var(--brand-deep);transform:translateY(-2px);}

/* ---------- 深色带 ---------- */
.band-dark{background:var(--dark);color:#C9D0D7;padding:56px 0;position:relative;overflow:hidden;}
.band-dark::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);background-size:22px 22px;opacity:.6;pointer-events:none;}
.band-dark-inner{position:relative;display:grid;gap:36px;}
@media (min-width:1024px){.band-dark-inner{grid-template-columns:7fr 5fr;gap:56px;align-items:center;padding:24px 0;}}
.band-dark-title{color:#FFFFFF;font-size:clamp(1.5rem,2.6vw,2.25rem);line-height:1.22;font-weight:700;margin-bottom:14px;}
.band-dark p{color:#AEB6BE;max-width:52ch;}
.stat-row{display:flex;flex-wrap:wrap;gap:32px;margin-top:30px;}
.stat{min-width:120px;}
.stat b{display:block;font-size:clamp(1.5rem,3vw,2rem);line-height:1.1;color:#fff;font-weight:700;font-variant-numeric:tabular-nums;}
.stat span{display:block;margin-top:6px;font-size:13px;color:var(--ink-300);}
.media-frame{margin:0;}
.media-frame img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-img);border:1px solid rgba(255,255,255,.08);}
.media-frame figcaption{margin-top:12px;font-size:13px;color:var(--ink-300);}

/* ---------- 入口清单 ---------- */
.entry-grid{display:grid;gap:0 56px;}
@media (min-width:1024px){.entry-grid{grid-template-columns:1fr 1fr;}}
.entry-col{border-top:1px solid var(--line);}
.entry-item{display:grid;gap:6px;padding:20px 0;border-bottom:1px solid var(--line);}
@media (min-width:768px){
  .entry-item{grid-template-columns:210px minmax(0,1fr) 20px;align-items:center;gap:20px;}
}
.entry-name{display:flex;align-items:baseline;gap:12px;}
.entry-no{font-size:12px;font-weight:600;letter-spacing:.16em;color:var(--brand-deep);font-variant-numeric:tabular-nums;}
.entry-name h3{font-size:1.0625rem;line-height:1.4;font-weight:600;color:var(--ink-900);}
.entry-desc{font-size:.9375rem;color:var(--ink-500);}
.entry-arrow{display:none;color:var(--ink-300);transition:transform .22s,color .22s;}
@media (min-width:768px){.entry-arrow{display:inline-flex;}}
.entry-item:hover .entry-arrow{transform:translateX(4px);color:var(--brand-deep);}
.entry-item:hover .entry-name h3{color:var(--brand-deep);}

/* ---------- 非对称分栏 ---------- */
.split{display:grid;gap:36px;}
@media (min-width:1024px){.split{grid-template-columns:5fr 7fr;gap:64px;align-items:start;}}
.split-side{position:relative;}
.split-side .btn{margin-top:22px;}
.num-list li{display:grid;grid-template-columns:44px minmax(0,1fr);gap:18px;padding:24px 0;border-top:1px solid var(--line);}
.num-list li:last-child{border-bottom:1px solid var(--line);}
.num-list .num{font-size:12px;font-weight:600;letter-spacing:.16em;color:var(--brand-deep);padding-top:6px;font-variant-numeric:tabular-nums;}
.num-list h3{font-size:1.0625rem;font-weight:600;color:var(--ink-900);margin-bottom:8px;}
.num-list p{font-size:.9375rem;color:var(--ink-500);max-width:56ch;}

/* ---------- 图文块 ---------- */
.figure-row{display:grid;gap:32px;align-items:center;}
@media (min-width:1024px){.figure-row{grid-template-columns:6fr 6fr;gap:64px;}
  .figure-row.reverse .figure-row-media{order:2;}
  .figure-row.reverse .figure-row-copy{order:1;}
}
.figure-row-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-img);border:1px solid var(--line);}
.figure-row-copy h2{margin-bottom:16px;}
.figure-row-copy p+p{margin-top:14px;}
.check-list{margin-top:22px;display:grid;gap:12px;}
.check-list li{display:grid;grid-template-columns:20px minmax(0,1fr);gap:12px;font-size:.9375rem;color:var(--ink-500);}
.check-list svg{width:18px;height:18px;color:var(--brand-deep);margin-top:4px;}

/* ---------- 提示条 ---------- */
.notice{display:grid;grid-template-columns:20px minmax(0,1fr);gap:12px;padding:16px 18px;border-radius:var(--radius-card);background:rgba(255,122,47,.10);border:1px solid rgba(255,122,47,.28);font-size:.9375rem;color:#8A3C08;}
.notice svg{width:18px;height:18px;margin-top:3px;color:var(--accent);}

/* ---------- FAQ ---------- */
.faq{max-width:760px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:22px 0;background:none;border:0;text-align:left;font-size:1.0625rem;font-weight:600;color:var(--ink-900);cursor:pointer;transition:color .22s;}
.faq-q:hover{color:var(--brand-deep);}
.faq-icon{flex:none;width:22px;height:22px;display:inline-flex;align-items:center;justify-content:center;color:var(--ink-500);transition:transform .28s cubic-bezier(.4,0,.2,1),color .22s;}
.faq-icon svg{width:18px;height:18px;}
.faq-item.open .faq-icon{transform:rotate(180deg);color:var(--brand-deep);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s cubic-bezier(.4,0,.2,1);}
.faq-a p{max-width:62ch;padding-bottom:22px;font-size:.9375rem;color:var(--ink-500);}

/* ---------- 尾部 CTA ---------- */
.cta-band{background:var(--dark);color:#C9D0D7;padding:56px 0;}
.cta-inner{display:grid;gap:26px;}
@media (min-width:1024px){.cta-inner{grid-template-columns:1fr auto;align-items:center;gap:48px;}}
.cta-band h2{color:#fff;font-size:clamp(1.5rem,2.6vw,2.125rem);line-height:1.22;font-weight:700;margin-bottom:12px;}
.cta-band p{max-width:60ch;color:#AEB6BE;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.cta-actions .btn-outline{background:transparent;border-color:rgba(255,255,255,.24);color:#E6EAEE;}
.cta-actions .btn-outline:hover{border-color:var(--brand);color:var(--brand);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#98A1AA;padding:64px 0 110px;border-top:1px solid rgba(255,255,255,.08);}
.footer-grid{display:grid;gap:36px;}
@media (min-width:768px){.footer-grid{grid-template-columns:1fr 1fr;gap:40px;}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.4fr;gap:48px;}}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand .logo-text b{color:#fff;}
.footer-brand .logo-text span{color:var(--ink-300);}
.footer-brand p{font-size:.875rem;max-width:38ch;color:#98A1AA;}
.footer-title{font-size:13px;font-weight:600;letter-spacing:.08em;color:#E6EAEE;margin-bottom:16px;}
.footer-list{display:grid;gap:10px;}
.footer-list a{font-size:.875rem;color:#98A1AA;transition:color .22s;background-image:linear-gradient(currentColor,currentColor);background-repeat:no-repeat;background-size:0% 1px;background-position:0 100%;transition:background-size .22s,color .22s;}
.footer-list a:hover{color:var(--brand);background-size:100% 1px;}
.footer-note{font-size:.875rem;color:#98A1AA;}
.footer-bottom{margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;font-size:13px;color:#7E868F;}

/* ---------- 固定转化条 ---------- */
.sticky-cta{position:fixed;left:0;right:0;bottom:0;z-index:60;background:rgba(250,250,248,.96);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-top:1px solid var(--line);transform:translateY(110%);transition:transform .32s cubic-bezier(.4,0,.2,1);}
.sticky-cta.show{transform:none;}
.sticky-cta-inner{display:flex;align-items:center;gap:14px;min-height:64px;padding:10px 0;}
.sticky-cta-text{font-size:.875rem;color:var(--ink-700);flex:1 1 auto;}
.sticky-cta-text b{color:var(--ink-900);font-weight:600;}
.sticky-cta-actions{display:flex;gap:10px;flex:none;}
@media (max-width:520px){
  .sticky-cta-inner{flex-wrap:wrap;gap:10px;padding:10px 0 12px;}
  .sticky-cta-text{flex:1 1 100%;font-size:.8125rem;}
  .sticky-cta-actions{flex:1 1 100%;}
  .sticky-cta-actions .btn{flex:1 1 0;}
}
.to-top{position:fixed;right:18px;bottom:82px;z-index:55;width:42px;height:42px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;border:1px solid var(--line);background:var(--surface);color:var(--ink-700);cursor:pointer;opacity:0;visibility:hidden;transition:opacity .24s,visibility .24s,transform .24s,box-shadow .24s;}
.to-top.show{opacity:1;visibility:visible;}
.to-top:hover{transform:translateY(-2px);box-shadow:var(--shadow-card);}
.to-top svg{width:18px;height:18px;}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s ease,transform .6s cubic-bezier(.4,0,.2,1);}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{transform:none;transition:opacity .3s ease;}
  .btn:hover svg{transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --ink-900:#12161B; --ink-700:#2A3038; --ink-500:#5C646E; --ink-300:#A6ADB6;
  --line:#E5E7EA; --paper:#FAFAF8; --surface:#FFFFFF;
  --brand:#00C88C; --brand-deep:#00996B; --brand-soft:#E6FAF3;
  --accent:#FF7A2F; --accent-soft:#FFF3E9; --dark:#0E1216;
  --r-btn:10px; --r-card:14px; --r-img:12px; --r-badge:6px;
  --shadow-hover:0 8px 24px rgba(18,22,27,.08);
  --ease:cubic-bezier(.4,0,.2,1);
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",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;padding:0;
  font-family:var(--font-cn);
  font-size:16px;line-height:1.75;font-weight:400;
  color:var(--ink-700);background:var(--paper);
  padding-bottom:96px;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
figure{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.num{font-variant-numeric:tabular-nums}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){ .container{padding:0 32px} }

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(250,250,248,.86);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;gap:20px;height:56px}
@media (min-width:1024px){ .nav-inner{height:64px;gap:24px} }

.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  display:grid;place-items:center;width:34px;height:34px;border-radius:9px;
  background:var(--brand-soft);color:var(--brand-deep);
}
.logo-mark svg{width:20px;height:20px}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{font-size:.9375rem;font-weight:700;color:var(--ink-900);letter-spacing:-.01em;white-space:nowrap}
.logo-text span{font-size:.6875rem;color:var(--ink-500);letter-spacing:.04em;white-space:nowrap}
@media (max-width:520px){ .logo-text span{display:none} }

.nav-links{display:none;align-items:center;gap:2px;margin-left:8px}
@media (min-width:1024px){ .nav-links{display:flex} }
.nav-link{
  position:relative;display:inline-block;padding:8px 12px;border-radius:8px;
  font-size:.875rem;color:var(--ink-500);font-weight:500;
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .24s var(--ease);
}
.nav-link:hover{color:var(--ink-900)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--ink-900);font-weight:600}
.nav-link.active::after{transform:scaleX(1)}

.nav-right{display:flex;align-items:center;gap:10px;margin-left:auto}
.nav-search{position:relative;display:none}
@media (min-width:1024px){ .nav-search{display:block} }
.nav-search svg{
  position:absolute;left:10px;top:50%;transform:translateY(-50%);
  width:16px;height:16px;color:var(--ink-300);pointer-events:none;
}
.nav-search input{
  width:200px;height:40px;padding:0 12px 0 32px;
  border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--surface);font-size:.8125rem;color:var(--ink-900);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search input::placeholder{color:var(--ink-300)}
.nav-search input:focus{
  outline:none;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(0,200,140,.16);
}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:44px;padding:0 16px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:.875rem;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease);
}
@media (min-width:1024px){ .btn{height:40px} }
.btn svg{width:16px;height:16px;transition:transform .2s var(--ease)}
.btn:hover svg{transform:translateX(3px)}
.btn-primary{background:var(--brand);color:#06251A;border-color:var(--brand)}
.btn-primary:hover{background:var(--brand-deep);color:#fff;border-color:var(--brand-deep)}
.btn-outline{border-color:var(--line);color:var(--ink-700);background:var(--surface)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-deep)}
.btn-ghost{background:transparent;color:var(--ink-700);padding:0 10px}
.btn-ghost:hover{color:var(--brand-deep)}
.btn-ghost span{background-image:linear-gradient(var(--brand-deep),var(--brand-deep));background-repeat:no-repeat;background-position:0 100%;background-size:0 1px;transition:background-size .24s var(--ease);padding-bottom:2px}
.btn-ghost:hover span{background-size:100% 1px}
.nav-desktop-only{display:none}
@media (min-width:1024px){ .nav-desktop-only{display:inline-flex} }

.burger{
  display:inline-grid;place-items:center;width:44px;height:44px;
  border:1px solid var(--line);border-radius:var(--r-btn);background:var(--surface);cursor:pointer;
}
.burger svg{width:20px;height:20px;color:var(--ink-700)}
@media (min-width:1024px){ .burger{display:none} }

/* ---------- drawer ---------- */
.drawer{
  position:fixed;top:0;right:0;z-index:90;
  width:min(88vw,340px);height:100%;
  background:var(--surface);border-left:1px solid var(--line);
  padding:20px 20px 32px;overflow-y:auto;
  transform:translateX(102%);transition:transform .3s var(--ease);
}
.drawer.open{transform:translateX(0)}
.drawer-mask{
  position:fixed;inset:0;z-index:80;background:rgba(14,18,22,.42);
  opacity:0;pointer-events:none;transition:opacity .3s var(--ease);
}
.drawer-mask.open{opacity:1;pointer-events:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-head b{font-size:.9375rem;color:var(--ink-900)}
.drawer-close{width:36px;height:36px;border:1px solid var(--line);border-radius:9px;background:var(--surface);cursor:pointer;display:grid;place-items:center}
.drawer-close svg{width:18px;height:18px}
.drawer-search{position:relative;margin-bottom:18px}
.drawer-search svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:var(--ink-300)}
.drawer-search input{width:100%;height:44px;padding:0 12px 0 36px;border:1px solid var(--line);border-radius:var(--r-btn);background:var(--paper)}
.drawer-search input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(0,200,140,.16)}
.drawer-nav{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.drawer-nav a{padding:14px 2px;border-bottom:1px solid var(--line);font-size:.9375rem;color:var(--ink-700);display:flex;align-items:center;justify-content:space-between}
.drawer-nav a.active{color:var(--brand-deep);font-weight:600}
.drawer-nav a svg{width:16px;height:16px;color:var(--ink-300)}
.drawer-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:22px}
.drawer-actions .btn{width:100%}

/* ---------- breadcrumb ---------- */
.crumbs{padding-top:20px}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:6px;font-size:.8125rem;color:var(--ink-500)}
.crumbs li{display:flex;align-items:center;gap:6px}
.crumbs li+li::before{content:"/";color:var(--ink-300)}
.crumbs a{transition:color .2s var(--ease)}
.crumbs a:hover{color:var(--brand-deep)}
.crumbs [aria-current]{color:var(--ink-700);font-weight:600}

/* ---------- page head ---------- */
.page-head{padding:28px 0 8px}
.page-head-grid{display:grid;grid-template-columns:1fr;gap:28px;align-items:center}
@media (min-width:1024px){ .page-head-grid{grid-template-columns:7fr 5fr;gap:48px} }
.badge{
  display:inline-block;padding:4px 10px;border-radius:var(--r-badge);
  background:var(--brand-soft);color:var(--brand-deep);
  font-size:.75rem;font-weight:600;letter-spacing:.06em;
}
.badge-accent{background:var(--accent-soft);color:#B4500F}
h1{
  margin-top:14px;color:var(--ink-900);
  font-size:clamp(2.125rem,5.2vw,3.25rem);line-height:1.1;letter-spacing:-.02em;font-weight:700;
}
.h1-kicker{display:block;font-size:.8125rem;font-weight:600;letter-spacing:.16em;color:var(--brand-deep);margin-bottom:10px}
.page-sub{margin-top:14px;font-size:1rem;color:var(--ink-500);max-width:46ch}
.head-meta{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:22px;padding-top:20px;border-top:1px solid var(--line);font-size:.8125rem;color:var(--ink-500)}
.head-meta span{display:inline-flex;align-items:center;gap:7px}
.head-meta svg{width:15px;height:15px;color:var(--brand-deep)}
.head-figure{margin:0}
.head-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;border:1px solid var(--line)}

/* ---------- sections ---------- */
.section{padding-top:56px}
@media (min-width:768px){ .section{padding-top:76px} }
@media (min-width:1024px){ .section{padding-top:104px} }
.section-head{max-width:640px;margin-bottom:32px}
.section-head h2{color:var(--ink-900);font-size:clamp(1.5rem,2.6vw,2.25rem);line-height:1.22;font-weight:700;letter-spacing:-.01em}
.section-head p{margin-top:12px;color:var(--ink-500);font-size:.9375rem}

/* ---------- split layout ---------- */
.split{display:grid;grid-template-columns:1fr;gap:40px}
@media (min-width:1024px){ .split{grid-template-columns:minmax(0,1fr) 320px;gap:56px;align-items:start} }

.duo{
  display:grid;grid-template-columns:1fr;gap:24px;align-items:center;
  padding-bottom:40px;margin-bottom:40px;border-bottom:1px solid var(--line);
}
.duo:last-of-type{border-bottom:0;margin-bottom:0;padding-bottom:0}
@media (min-width:768px){
  .duo{grid-template-columns:1fr 1fr;gap:40px;padding-bottom:48px;margin-bottom:48px}
  .duo-reverse .duo-media{order:-1}
}
.duo-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border:1px solid var(--line);
  transition:transform .22s var(--ease);
}
.duo-media{overflow:hidden;border-radius:var(--r-img)}
.duo-media:hover img{transform:scale(1.03)}
.duo-body h3{font-size:1.125rem;line-height:1.4;font-weight:600;color:var(--ink-900)}
.duo-body .duo-index{
  display:block;font-size:.75rem;font-weight:600;letter-spacing:.16em;color:var(--brand);margin-bottom:10px;
}
.duo-body p{margin-top:12px;font-size:.9375rem;color:var(--ink-500)}
.duo-list{margin-top:16px;display:flex;flex-direction:column;gap:10px}
.duo-list li{position:relative;padding-left:18px;font-size:.875rem;color:var(--ink-700)}
.duo-list li::before{content:"";position:absolute;left:0;top:.6em;width:6px;height:6px;border-radius:2px;background:var(--brand)}

/* ---------- sticky aside ---------- */
.sticky-card{
  border:1px solid var(--line);border-radius:var(--r-card);background:var(--surface);
  padding:24px;
}
@media (min-width:1024px){ .sticky-card{position:sticky;top:96px} }
.sticky-card h2{font-size:1.0625rem;font-weight:600;color:var(--ink-900)}
.sticky-card .hint{margin-top:8px;font-size:.8125rem;color:var(--ink-500)}
.sticky-list{margin-top:18px;border-top:1px solid var(--line)}
.sticky-list li{
  padding:13px 0;border-bottom:1px solid var(--line);
  display:flex;gap:12px;font-size:.875rem;color:var(--ink-700);
}
.sticky-list li b{color:var(--brand-deep);font-weight:600;font-variant-numeric:tabular-nums}
.sticky-card .btn{width:100%;margin-top:20px}

/* ---------- stat strip ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(2,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
}
@media (min-width:768px){ .stat-strip{grid-template-columns:repeat(4,1fr)} }
.stat{background:var(--surface);padding:24px 20px}
.stat b{display:block;font-size:clamp(1.5rem,3vw,2rem);font-weight:700;color:var(--ink-900);font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.stat span{display:block;margin-top:6px;font-size:.8125rem;color:var(--ink-500)}

/* ---------- step list ---------- */
.steps{border-top:1px solid var(--line)}
.steps li{
  display:grid;grid-template-columns:56px 1fr;gap:16px;align-items:start;
  padding:22px 0;border-bottom:1px solid var(--line);
}
.steps .idx{font-size:.8125rem;font-weight:600;letter-spacing:.16em;color:var(--brand);font-variant-numeric:tabular-nums;padding-top:3px}
.steps h3{font-size:1.0625rem;font-weight:600;color:var(--ink-900)}
.steps p{margin-top:8px;font-size:.9125rem;color:var(--ink-500)}

/* ---------- CTA ---------- */
.cta-dark{
  margin-top:64px;background:var(--dark);color:#EDEFF1;
  border-top:1px solid rgba(255,255,255,.08);border-bottom:1px solid rgba(255,255,255,.08);
  background-image:linear-gradient(rgba(14,18,22,.88),rgba(14,18,22,.94)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
}
.cta-inner{padding:56px 0;display:grid;grid-template-columns:1fr;gap:28px;align-items:center}
@media (min-width:1024px){ .cta-inner{grid-template-columns:7fr 5fr;gap:48px;padding:80px 0} }
.cta-inner h2{font-size:clamp(1.5rem,2.6vw,2.25rem);line-height:1.22;font-weight:700;color:#fff;letter-spacing:-.01em}
.cta-inner p{margin-top:14px;font-size:.9375rem;color:#B9C0C7;max-width:52ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-actions .btn-primary{background:var(--brand);color:#06251A;border-color:var(--brand)}
.cta-actions .btn-primary:hover{background:var(--brand-deep);color:#fff;border-color:var(--brand-deep)}
.cta-actions .btn-ghost{color:#EDEFF1;border:1px solid rgba(255,255,255,.24);background:transparent;padding:0 16px}
.cta-actions .btn-ghost:hover{border-color:var(--brand);color:#fff}

/* ---------- footer ---------- */
.site-footer{background:var(--paper);border-top:1px solid var(--line);margin-top:0;padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:768px){ .footer-grid{grid-template-columns:repeat(2,1fr)} }
@media (min-width:1024px){ .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px} }
.footer-brand b{display:block;color:var(--ink-900);font-size:1rem;font-weight:700}
.footer-brand p{margin-top:12px;font-size:.8125rem;color:var(--ink-500);max-width:34ch}
.footer-col h3{font-size:.75rem;font-weight:600;letter-spacing:.16em;color:var(--ink-900);margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:.875rem;color:var(--ink-500);transition:color .2s var(--ease)}
.footer-col a:hover{color:var(--brand-deep)}
.footer-note{font-size:.8125rem;color:var(--ink-500);line-height:1.8}
.footer-bottom{
  margin-top:44px;padding:20px 0 28px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
  font-size:.8125rem;color:var(--ink-500);
}
.to-top{
  position:fixed;right:20px;bottom:88px;z-index:70;
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:var(--surface);
  display:grid;place-items:center;cursor:pointer;opacity:0;pointer-events:none;
  transition:opacity .24s var(--ease),transform .24s var(--ease);
}
.to-top.show{opacity:1;pointer-events:auto}
.to-top svg{width:18px;height:18px;color:var(--ink-700)}

/* ---------- fixed bar ---------- */
.fixed-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:75;
  background:rgba(250,250,248,.94);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-top:1px solid var(--line);
  transform:translateY(105%);transition:transform .28s var(--ease);
}
.fixed-bar.show{transform:translateY(0)}
.fixed-bar .inner{
  display:flex;align-items:center;gap:14px;min-height:64px;padding-top:8px;padding-bottom:8px;
}
.fixed-bar .bar-text{font-size:.875rem;color:var(--ink-900);font-weight:600;margin-right:auto}
.fixed-bar .bar-text small{display:block;font-size:.75rem;font-weight:400;color:var(--ink-500);margin-top:2px}
@media (max-width:520px){
  .fixed-bar .inner{gap:10px}
  .fixed-bar .bar-text{font-size:.8125rem;flex:1 1 100%;margin:0 0 8px}
  .fixed-bar .bar-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;width:100%}
  .fixed-bar .bar-actions .btn{width:100%}
  .to-top{bottom:112px}
}
.bar-actions{display:flex;gap:10px;align-items:center}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{transform:none;transition:opacity .3s linear}
  .btn:hover svg{transform:none}
  .duo-media:hover img{transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category3 */
:root{
  --ink-900:#12161B;
  --ink-700:#2A3038;
  --ink-500:#5C646E;
  --ink-300:#A6ADB6;
  --line:#E5E7EA;
  --paper:#FAFAF8;
  --surface:#FFFFFF;
  --brand:#00C88C;
  --brand-deep:#00996B;
  --accent:#FF7A2F;
  --dark:#0E1216;
  --radius-btn:10px;
  --radius-card:14px;
  --radius-img:12px;
  --shadow-hover:0 8px 24px rgba(18,22,27,.08);
  --ease:cubic-bezier(.4,0,.2,1);
  --nav-h:64px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-bottom:76px;
  background:var(--paper);
  color:var(--ink-700);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
button,input{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;letter-spacing:-.01em}
p{margin:0 0 1.05em}
ul,ol{margin:0;padding:0;list-style:none}
figure{margin:0}
.num{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:40px;padding:0 18px;border-radius:var(--radius-btn);
  font-size:14.5px;font-weight:600;white-space:nowrap;
  border:1px solid transparent;transition:background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.btn svg{width:16px;height:16px;flex:none;transition:transform .22s var(--ease)}
.btn:hover svg{transform:translateX(3px)}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.btn-primary{background:var(--brand);color:#07271F;border-color:var(--brand)}
.btn-primary:hover{background:var(--brand-deep);border-color:var(--brand-deep);color:#FFFFFF}
.btn-outline{background:transparent;color:var(--ink-700);border-color:var(--line)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-deep)}
.btn-ghost{
  position:relative;padding:0 6px;min-height:40px;color:var(--ink-700);
  background-image:linear-gradient(var(--brand),var(--brand));
  background-repeat:no-repeat;background-size:0 1.5px;background-position:0 100%;
  transition:background-size .25s var(--ease),color .22s var(--ease);
}
.btn-ghost:hover{color:var(--ink-900);background-size:100% 1.5px}
.btn-dark{background:#FFFFFF;color:var(--ink-900);border-color:#FFFFFF}
.btn-dark:hover{background:var(--brand);border-color:var(--brand);color:#07271F}
.btn-onDark{background:transparent;color:#FFFFFF;border-color:rgba(255,255,255,.28)}
.btn-onDark:hover{border-color:var(--brand);color:var(--brand)}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:6px;
  font-size:12px;font-weight:600;letter-spacing:.06em;
}
.badge-brand{background:rgba(0,200,140,.12);color:var(--brand-deep)}
.badge-accent{background:rgba(255,122,47,.12);color:#A6470E}
.badge-muted{background:#F1F2F3;color:var(--ink-500)}
.eyebrow{
  display:inline-block;margin-bottom:14px;
  font-size:12px;font-weight:600;letter-spacing:.16em;color:var(--brand-deep);
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(250,250,248,.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;gap:20px;height:var(--nav-h)}
.logo{display:flex;align-items:center;gap:10px;flex:none}
.logo-mark{
  display:grid;place-items:center;width:34px;height:34px;flex:none;
  border-radius:10px;background:var(--ink-900);color:var(--brand);
}
.logo-mark svg{width:19px;height:19px}
.logo-text b{display:block;font-size:15px;font-weight:700;color:var(--ink-900);line-height:1.25;letter-spacing:-.01em}
.logo-text span{display:block;font-size:11px;color:var(--ink-500);letter-spacing:.12em}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:12px}
.nav-link{
  position:relative;display:inline-block;padding:8px 12px;
  font-size:14.5px;color:var(--ink-700);border-radius:8px;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav-link:hover{color:var(--ink-900)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--ink-900);font-weight:600}
.nav-link.active::after{transform:scaleX(1)}
.nav-right{display:flex;align-items:center;gap:10px;margin-left:auto}
.nav-search{
  display:flex;align-items:center;gap:8px;width:200px;height:40px;padding:0 12px;
  background:var(--surface);border:1px solid var(--line);border-radius:10px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-search svg{width:16px;height:16px;color:var(--ink-300);flex:none}
.nav-search input{width:100%;border:0;outline:0;background:transparent;font-size:14px}
.nav-search input::placeholder{color:var(--ink-300)}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(0,200,140,.15)}
.burger{
  display:none;place-items:center;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);background:var(--surface);color:var(--ink-900);
}
.burger svg{width:20px;height:20px}
.burger:hover{border-color:var(--brand);color:var(--brand-deep)}

/* ---------- 移动抽屉 ---------- */
.drawer-overlay{
  position:fixed;inset:0;z-index:80;background:rgba(14,18,22,.45);
  opacity:0;visibility:hidden;transition:opacity .28s var(--ease),visibility .28s var(--ease);
}
.drawer-overlay.open{opacity:1;visibility:visible}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:90;width:min(88vw,340px);
  padding:20px 20px 32px;background:var(--surface);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .3s var(--ease);
  overflow-y:auto;
}
.nav-drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-title{font-size:13px;font-weight:600;letter-spacing:.16em;color:var(--ink-500)}
.drawer-close{display:grid;place-items:center;width:36px;height:36px;border-radius:10px;border:1px solid var(--line);color:var(--ink-700)}
.drawer-close svg{width:18px;height:18px}
.drawer-search{width:100%;margin-bottom:20px}
.drawer-links{border-top:1px solid var(--line);margin-bottom:22px}
.drawer-link{display:block;padding:14px 2px;border-bottom:1px solid var(--line);font-size:15px;color:var(--ink-700)}
.drawer-link.active{color:var(--ink-900);font-weight:600}
.drawer-link:hover{color:var(--brand-deep)}
.drawer-actions{display:grid;gap:10px}
.drawer-actions .btn{width:100%;height:44px}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-500);padding:20px 0 0}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:var(--ink-300)}
.crumb a:hover{color:var(--brand-deep)}
.crumb [aria-current="page"]{color:var(--ink-900)}

/* ---------- 页头 ---------- */
.page-hero{
  padding:32px 0 72px;
  background:linear-gradient(180deg,#FFFFFF 0%,var(--paper) 100%);
  border-bottom:1px solid var(--line);
}
.page-hero .container{position:relative}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;margin-top:36px}
.hero-copy h1{font-size:clamp(2rem,4.4vw,3.25rem);line-height:1.12;letter-spacing:-.02em}
.lede{margin-top:18px;font-size:1.0625rem;color:var(--ink-500);max-width:34ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-points{display:flex;flex-wrap:wrap;margin-top:32px;padding-top:20px;border-top:1px solid var(--line)}
.hero-points li{
  padding-right:22px;margin-right:22px;border-right:1px solid var(--line);
  font-size:13.5px;color:var(--ink-500);
}
.hero-points li:last-child{border-right:0;margin-right:0;padding-right:0}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-img);border:1px solid var(--line)}

/* ---------- 板块 ---------- */
.section{padding:96px 0}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:48px}
.section-head h2{font-size:clamp(1.5rem,2.6vw,2.25rem);line-height:1.22}
.section-head p{margin-top:14px;color:var(--ink-500)}

/* ---------- 时间轴 ---------- */
.flow-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:56px;align-items:start}
.timeline{padding-left:2px}
.tl-item{position:relative;display:grid;grid-template-columns:56px 1fr;gap:24px;padding-bottom:40px}
.tl-item:last-child{padding-bottom:0}
.tl-item:not(:last-child)::before{
  content:"";position:absolute;left:27px;top:64px;bottom:0;width:1px;background:var(--line);
}
.tl-num{
  display:grid;place-items:center;width:56px;height:56px;border-radius:50%;
  background:var(--surface);border:1px solid var(--line);
  font-weight:700;font-size:.95rem;color:var(--brand-deep);
  transition:background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.tl-item:hover .tl-num{background:var(--brand);border-color:var(--brand);color:#07271F}
.tl-body h3{font-size:1.125rem;line-height:1.4;font-weight:600;margin-bottom:8px}
.tl-body p{margin:0 0 10px;color:var(--ink-500);font-size:.95rem;max-width:62ch}
.tl-meta{display:inline-flex;align-items:center;gap:6px;font-size:12px;letter-spacing:.04em;color:var(--ink-300)}
.tl-meta svg{width:14px;height:14px}
.flow-aside{
  position:sticky;top:88px;
  padding:28px;border:1px solid var(--line);border-radius:var(--radius-card);
  background:var(--surface);
}
.flow-aside h3{font-size:1.0625rem;margin-bottom:16px}
.aside-list li{
  position:relative;padding:12px 0 12px 20px;border-bottom:1px solid var(--line);
  font-size:.9375rem;color:var(--ink-500);
}
.aside-list li:last-child{border-bottom:0;padding-bottom:18px}
.aside-list li::before{
  content:"";position:absolute;left:0;top:20px;width:8px;height:8px;border-radius:50%;
  background:rgba(0,200,140,.25);border:1px solid var(--brand);
}
.flow-aside .btn{width:100%;height:44px}

/* ---------- 关键核验节点 ---------- */
.check-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center}
.check-grid img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-img);border:1px solid var(--line)}
.check-list li{padding:20px 0;border-bottom:1px solid var(--line)}
.check-list li:first-child{padding-top:0}
.check-list h3{font-size:1.0625rem;margin-bottom:8px}
.check-list p{margin:0;color:var(--ink-500);font-size:.95rem;max-width:62ch}
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:32px;padding-top:26px;border-top:1px solid var(--line)}
.stat-row b{display:block;font-size:1.75rem;font-weight:700;color:var(--ink-900);line-height:1.2}
.stat-row span{font-size:13px;color:var(--ink-500)}

/* ---------- 异常处理卡片 ---------- */
.risk-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.risk-card{
  padding:28px;border:1px solid var(--line);border-radius:var(--radius-card);background:var(--surface);
  transition:box-shadow .22s var(--ease),transform .22s var(--ease);
}
.risk-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.risk-card h3{font-size:1.0625rem;margin:16px 0 8px}
.risk-card p{margin:0;font-size:.9375rem;color:var(--ink-500)}
.risk-icon{
  display:grid;place-items:center;width:40px;height:40px;border-radius:10px;
  background:rgba(0,200,140,.1);color:var(--brand-deep);
}
.risk-icon svg{width:20px;height:20px}
.notice{
  display:flex;gap:14px;align-items:flex-start;margin-top:28px;padding:18px 20px;
  border:1px solid rgba(255,122,47,.3);border-radius:12px;background:rgba(255,122,47,.08);
  color:#8A3D09;font-size:.9375rem;
}
.notice svg{width:20px;height:20px;flex:none;margin-top:3px}
.notice p{margin:0}

/* ---------- FAQ ---------- */
.faq{max-width:720px;margin:0 auto;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:18px;width:100%;
  padding:22px 0;text-align:left;font-size:1.0625rem;font-weight:600;color:var(--ink-900);
}
.faq-q:hover{color:var(--brand-deep)}
.faq-q:focus-visible{outline:2px solid var(--brand);outline-offset:4px;border-radius:6px}
.faq-icon{display:grid;place-items:center;width:24px;height:24px;flex:none;color:var(--brand-deep)}
.faq-icon svg{width:20px;height:20px}
.faq-icon .v{transition:opacity .24s var(--ease),transform .24s var(--ease)}
.faq-item.open .faq-icon .v{opacity:0;transform:scaleY(0)}
.faq-panel{max-height:0;overflow:hidden;opacity:0;transition:max-height .32s var(--ease),opacity .28s var(--ease)}
.faq-item.open .faq-panel{max-height:320px;opacity:1}
.faq-panel p{max-width:62ch;padding-bottom:22px;margin:0;color:var(--ink-500);font-size:.9375rem}

/* ---------- 尾部 CTA ---------- */
.cta-band{background:var(--dark);color:rgba(255,255,255,.76);padding:72px 0}
.cta-inner{display:grid;grid-template-columns:1.4fr auto;gap:40px;align-items:center}
.cta-band h2{color:#FFFFFF;font-size:clamp(1.5rem,2.6vw,2.125rem);line-height:1.24;margin-bottom:14px}
.cta-band p{margin:0;max-width:52ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.68);padding:72px 0 112px;border-top:1px solid rgba(255,255,255,.08)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .logo-mark{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12)}
.footer-brand b{color:#FFFFFF;font-size:15px;font-weight:700}
.site-footer p{font-size:.875rem;line-height:1.8;margin:0}
.footer-title{font-size:12px;font-weight:600;letter-spacing:.16em;color:rgba(255,255,255,.45);margin-bottom:16px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:.9375rem;color:rgba(255,255,255,.72)}
.footer-links a:hover{color:var(--brand)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 回顶与底部转化条 ---------- */
.to-top{
  position:fixed;right:20px;bottom:84px;z-index:65;display:grid;place-items:center;
  width:44px;height:44px;border-radius:50%;background:var(--surface);
  border:1px solid var(--line);color:var(--ink-700);
  opacity:0;visibility:hidden;transition:opacity .25s var(--ease),visibility .25s var(--ease),border-color .2s var(--ease);
}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{border-color:var(--brand);color:var(--brand-deep)}
.to-top svg{width:18px;height:18px}
.bottom-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:var(--surface);border-top:1px solid var(--line);
  transform:translateY(110%);transition:transform .3s var(--ease);
}
.bottom-bar.show{transform:translateY(0)}
.bottom-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px}
.bottom-text{font-size:.9375rem;color:var(--ink-700);font-weight:600}
.bottom-text span{color:var(--ink-500);font-weight:400;margin-left:8px;font-size:13.5px}
.bottom-actions{display:flex;gap:10px}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{transform:none;transition:opacity .3s linear}
  html{scroll-behavior:auto}
  .btn:hover svg{transform:none}
  .risk-card:hover{transform:none}
}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .nav-links{display:none}
  .burger{display:grid}
}
@media (max-width:1024px){
  .section{padding:80px 0}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .lede{max-width:none}
  .flow-layout{grid-template-columns:1fr;gap:40px}
  .flow-aside{position:static}
  .check-grid{grid-template-columns:1fr;gap:32px}
  .risk-grid{grid-template-columns:1fr}
  .cta-inner{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:860px){
  .nav-search{display:none}
  .nav-desktop-only{display:none}
}
@media (max-width:640px){
  .section{padding:56px 0}
  .page-hero{padding-bottom:56px}
  .hero-points li{padding-right:16px;margin-right:16px;font-size:13px}
  .tl-item{grid-template-columns:44px 1fr;gap:16px;padding-bottom:32px}
  .tl-item:not(:last-child)::before{left:21px;top:52px}
  .tl-num{width:44px;height:44px;font-size:.875rem}
  .stat-row{grid-template-columns:1fr;gap:14px}
  .bottom-inner{height:auto;padding:10px 0;flex-direction:column;align-items:stretch;gap:10px}
  .bottom-actions .btn{flex:1;height:44px}
  .bottom-text{text-align:center}
  .footer-grid{grid-template-columns:1fr}
  .to-top{bottom:104px}
}

/* roulang page: category4 */
:root{
  --ink-900:#12161B;
  --ink-700:#2A3038;
  --ink-500:#5C646E;
  --ink-300:#A6ADB6;
  --line:#E5E7EA;
  --paper:#FAFAF8;
  --surface:#FFFFFF;
  --brand:#00C88C;
  --brand-deep:#00996B;
  --accent:#FF7A2F;
  --dark:#0E1216;
  --radius-btn:10px;
  --radius-card:14px;
  --radius-img:12px;
  --radius-badge:6px;
  --shadow-hover:0 8px 24px rgba(18,22,27,.08);
  --ease:cubic-bezier(.4,0,.2,1);
  --dur:220ms;
  --space-section:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-700);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  padding-bottom:88px;
}
img{max-width:100%;display:block;border-radius:var(--radius-img)}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
.num{font-variant-numeric:tabular-nums}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(250,250,248,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  display:flex;align-items:center;gap:24px;
  height:56px;
}
@media (min-width:1024px){.nav-inner{height:64px;gap:32px}}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:32px;height:32px;flex:0 0 32px;display:grid;place-items:center;
  border-radius:9px;background:var(--ink-900);color:var(--brand);
}
.logo-mark svg{width:18px;height:18px}
.logo-text{display:flex;flex-direction:column;line-height:1.2}
.logo-text b{font-size:15px;font-weight:700;color:var(--ink-900);letter-spacing:-.01em}
.logo-text span{font-size:11px;color:var(--ink-500);letter-spacing:.08em}
.nav-links{display:none;align-items:center;gap:26px;margin-left:8px}
@media (min-width:1024px){.nav-links{display:flex}}
.nav-link{
  position:relative;font-size:14.5px;color:var(--ink-700);
  padding:6px 0;transition:color var(--dur) var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform var(--dur) var(--ease);
}
.nav-link:hover{color:var(--ink-900)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--ink-900);font-weight:600}
.nav-link.active::after{transform:scaleX(1)}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-search{
  display:none;align-items:center;gap:8px;
  width:200px;height:40px;padding:0 12px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-btn);
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
@media (min-width:1024px){.nav-search{display:flex}}
.nav-search svg{width:16px;height:16px;color:var(--ink-300);flex:0 0 16px}
.nav-search input{
  width:100%;border:0;outline:0;background:transparent;font-size:13.5px;
}
.nav-search input::placeholder{color:var(--ink-300)}
.nav-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(0,200,140,.14)}
.nav-desktop-only{display:none}
@media (min-width:1024px){.nav-desktop-only{display:inline-flex}}
.burger{
  display:inline-grid;place-items:center;width:44px;height:44px;
  border:1px solid var(--line);border-radius:var(--radius-btn);
  background:var(--surface);cursor:pointer;color:var(--ink-700);
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.burger:hover{border-color:var(--brand);color:var(--brand-deep)}
.burger svg{width:20px;height:20px}
@media (min-width:1024px){.burger{display:none}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 18px;border-radius:var(--radius-btn);
  font-size:14.5px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;background:transparent;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),
             border-color var(--dur) var(--ease),transform var(--dur) var(--ease),
             box-shadow var(--dur) var(--ease);
}
@media (min-width:1024px){.btn{height:40px}}
.btn svg{width:16px;height:16px;transition:transform var(--dur) var(--ease)}
.btn:hover svg{transform:translateX(3px)}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.btn-primary{background:var(--brand);color:#0B1A15;border-color:var(--brand)}
.btn-primary:hover{background:var(--brand-deep);border-color:var(--brand-deep);color:#FFFFFF}
.btn-outline{border-color:var(--line);color:var(--ink-700);background:var(--surface)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-deep)}
.btn-ghost{color:var(--ink-700);padding:0 6px}
.btn-ghost:hover{color:var(--brand-deep)}
.btn-ghost-light{border-color:rgba(255,255,255,.28);color:#F2F5F4}
.btn-ghost-light:hover{border-color:var(--brand);color:var(--brand)}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;z-index:80;background:rgba(14,18,22,.5);
  opacity:0;pointer-events:none;transition:opacity var(--dur) var(--ease);
}
.drawer-mask.open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:90;width:min(86vw,360px);
  background:var(--surface);border-left:1px solid var(--line);
  padding:20px;display:flex;flex-direction:column;gap:20px;
  transform:translateX(102%);transition:transform 260ms var(--ease);
  overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{
  width:40px;height:40px;display:grid;place-items:center;
  border:1px solid var(--line);border-radius:var(--radius-btn);background:var(--surface);cursor:pointer;
}
.drawer-close svg{width:18px;height:18px}
.drawer-search{
  display:flex;align-items:center;gap:8px;height:44px;padding:0 12px;
  border:1px solid var(--line);border-radius:var(--radius-btn);background:var(--paper);
}
.drawer-search svg{width:16px;height:16px;color:var(--ink-300)}
.drawer-search input{width:100%;border:0;outline:0;background:transparent;font-size:14px}
.drawer-links{display:flex;flex-direction:column;gap:2px}
.drawer-links a{
  padding:13px 4px;border-bottom:1px solid var(--line);
  font-size:15px;color:var(--ink-700);
}
.drawer-links a.active{color:var(--ink-900);font-weight:600}
.drawer-actions{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:auto}
.drawer-actions .btn{width:100%}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding:22px 0 0}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-500)}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:var(--ink-300)}
.breadcrumb a{color:var(--ink-500);transition:color var(--dur) var(--ease)}
.breadcrumb a:hover{color:var(--brand-deep)}
.breadcrumb [aria-current="page"]{color:var(--ink-700)}

/* ---------- 页头 ---------- */
.page-head{padding:28px 0 44px;border-bottom:1px solid var(--line)}
.page-head h1{
  font-size:clamp(2rem,4.6vw,3.25rem);
  line-height:1.12;letter-spacing:-.02em;font-weight:700;
  margin:16px 0 14px;max-width:22ch;
}
.page-sub{font-size:16px;color:var(--ink-500);max-width:52ch}
.meta-row{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:22px;font-size:13px;color:var(--ink-500)}
.meta-row li{position:relative;padding-left:14px}
.meta-row li::before{
  content:"";position:absolute;left:0;top:.62em;width:5px;height:5px;
  border-radius:50%;background:var(--brand);
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 10px;border-radius:var(--radius-badge);
  font-size:12px;font-weight:600;letter-spacing:.06em;
  background:rgba(0,200,140,.12);color:var(--brand-deep);
}
.badge-accent{background:rgba(255,122,47,.14);color:#B24A0B}
.badge-mute{background:#F1F2F3;color:var(--ink-500)}

/* ---------- 板块 ---------- */
.section{padding:56px 0}
@media (min-width:768px){.section{padding:72px 0}}
@media (min-width:1024px){.section{padding:96px 0}}
.section-head{max-width:720px;margin-bottom:32px}
.section-head h2{
  font-size:clamp(1.5rem,2.6vw,2.25rem);line-height:1.22;letter-spacing:-.01em;
  margin-bottom:12px;
}
.section-head p{color:var(--ink-500);font-size:15.5px}
.eyebrow{
  display:block;font-size:12px;font-weight:600;letter-spacing:.16em;
  color:var(--brand-deep);margin-bottom:12px;
}

/* ---------- 提示条 ---------- */
.notice{
  display:flex;gap:14px;align-items:flex-start;
  margin-top:28px;padding:16px 18px;
  background:rgba(255,122,47,.09);
  border:1px solid rgba(255,122,47,.32);
  border-radius:var(--radius-card);
}
.notice svg{width:20px;height:20px;flex:0 0 20px;color:var(--accent);margin-top:2px}
.notice p{font-size:14.5px;color:#8A3E0E;margin:0;max-width:76ch}

/* ---------- 对照清单表 ---------- */
.table-wrap{
  overflow-x:auto;border-top:1px solid var(--line);
  background:var(--surface);border-radius:var(--radius-card);
  border:1px solid var(--line);
}
.cmp-table{width:100%;min-width:720px;border-collapse:collapse;font-size:14.5px}
.cmp-table th{
  text-align:left;padding:16px 20px;font-size:12px;font-weight:600;
  letter-spacing:.1em;color:var(--ink-500);border-bottom:1px solid var(--ink-900);
  white-space:nowrap;background:var(--surface);
}
.cmp-table td{
  padding:18px 20px;border-bottom:1px solid var(--line);vertical-align:top;
  color:var(--ink-700);
}
.cmp-table tr:last-child td{border-bottom:0}
.cmp-table td:first-child{color:var(--ink-900);font-weight:600;width:26%}
.cmp-table td:nth-child(2){color:var(--ink-500);width:32%}
.cmp-table tbody tr:hover{background:rgba(0,200,140,.045)}
.cmp-table .tag{display:inline-block;margin-top:8px}

/* ---------- 双列面板 ---------- */
.duo-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:768px){.duo-grid{grid-template-columns:1fr 1fr}}
.panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 24px;transition:box-shadow var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.panel:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.panel h3{font-size:1.125rem;line-height:1.4;margin-bottom:16px}
.panel-head{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.panel-head svg{width:20px;height:20px;color:var(--brand)}
.check-list li,.num-list li{
  padding:13px 0;border-bottom:1px solid var(--line);font-size:14.5px;color:var(--ink-700);
}
.check-list li:last-child,.num-list li:last-child{border-bottom:0;padding-bottom:0}
.check-list li{display:flex;gap:12px}
.check-list li::before{
  content:"";flex:0 0 7px;height:7px;margin-top:9px;border-radius:50%;
  background:var(--brand);
}
.num-list{counter-reset:item}
.num-list li{display:flex;gap:14px;counter-increment:item}
.num-list li::before{
  content:counter(item,decimal-leading-zero);
  flex:0 0 26px;font-size:12px;font-weight:600;letter-spacing:.08em;
  color:var(--accent);padding-top:3px;font-variant-numeric:tabular-nums;
}

/* ---------- 图文分栏 ---------- */
.split{display:grid;grid-template-columns:1fr;gap:32px;align-items:center}
@media (min-width:1024px){.split{grid-template-columns:7fr 5fr;gap:56px}}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border:1px solid var(--line)}
.split-text h2{font-size:clamp(1.5rem,2.6vw,2.25rem);line-height:1.22;margin-bottom:14px}
.split-text p{color:var(--ink-500);font-size:15.5px}
.key-list{margin-top:22px;border-top:1px solid var(--line)}
.key-list li{
  display:flex;justify-content:space-between;gap:16px;
  padding:14px 0;border-bottom:1px solid var(--line);font-size:14.5px;
}
.key-list strong{color:var(--ink-900);font-weight:600}
.key-list span{color:var(--ink-500);text-align:right}

/* ---------- 设备卡 ---------- */
.device-grid{display:grid;grid-template-columns:1fr;gap:24px;margin-top:8px}
@media (min-width:768px){.device-grid{grid-template-columns:1fr 1fr}}
.device-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;transition:box-shadow var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.device-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.device-card img{aspect-ratio:16/10;object-fit:cover;border-radius:0}
.device-body{padding:22px 22px 24px}
.device-body h3{font-size:1.125rem;margin-bottom:12px}
.device-body ul li{
  padding:9px 0 9px 18px;position:relative;font-size:14.5px;color:var(--ink-500);
}
.device-body ul li::before{
  content:"";position:absolute;left:0;top:1.05em;width:7px;height:1.5px;background:var(--brand-deep);
}

/* ---------- FAQ ---------- */
.faq{max-width:760px;margin:0 auto;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:22px 0;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:16.5px;font-weight:600;color:var(--ink-900);line-height:1.5;
  transition:color var(--dur) var(--ease);
}
.faq-q:hover{color:var(--brand-deep)}
.faq-q:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.faq-q .faq-icon{
  flex:0 0 22px;width:22px;height:22px;margin-top:4px;position:relative;
  transition:transform var(--dur) var(--ease);
}
.faq-q .faq-icon::before,.faq-q .faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--ink-500);
  transform:translate(-50%,-50%);
}
.faq-q .faq-icon::before{width:14px;height:1.5px}
.faq-q .faq-icon::after{width:1.5px;height:14px}
.faq-item.open .faq-icon{transform:rotate(180deg)}
.faq-item.open .faq-icon::after{opacity:0}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height 260ms var(--ease);
}
.faq-a p{
  max-width:62ch;padding-bottom:22px;font-size:15px;color:var(--ink-500);
}

/* ---------- 尾部 CTA ---------- */
.cta-band{
  position:relative;background:var(--dark);color:#E8ECEB;overflow:hidden;
  border-top:1px solid rgba(255,255,255,.08);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;opacity:.32;
}
.cta-inner{
  position:relative;display:grid;grid-template-columns:1fr;gap:28px;
  align-items:center;padding:56px 0;
}
@media (min-width:1024px){
  .cta-inner{grid-template-columns:7fr 5fr;padding:80px 0;gap:48px}
}
.cta-inner h2{color:#FFFFFF;font-size:clamp(1.6rem,2.8vw,2.25rem);line-height:1.22;margin-bottom:12px}
.cta-inner p{color:rgba(232,236,235,.76);max-width:52ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
@media (min-width:1024px){.cta-actions{justify-content:flex-end}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:rgba(232,236,235,.72);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr}}
.footer-brand p{font-size:14px;line-height:1.8;margin-top:16px;max-width:34ch}
.logo-footer .logo-text b{color:#FFFFFF}
.logo-footer .logo-text span{color:rgba(232,236,235,.55)}
.logo-footer .logo-mark{background:rgba(255,255,255,.08);color:var(--brand)}
.footer-col h3{
  color:#FFFFFF;font-size:13px;font-weight:600;letter-spacing:.1em;margin-bottom:16px;
}
.footer-col ul li{margin-bottom:11px}
.footer-col ul a{
  font-size:14px;color:rgba(232,236,235,.72);
  background-image:linear-gradient(var(--brand),var(--brand));
  background-repeat:no-repeat;background-position:0 100%;background-size:0 1px;
  transition:background-size var(--dur) var(--ease),color var(--dur) var(--ease);
}
.footer-col ul a:hover{color:var(--brand);background-size:100% 1px}
.footer-col p{font-size:13.5px;line-height:1.85;color:rgba(232,236,235,.6)}
.footer-bottom{
  margin-top:52px;padding:20px 0 28px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:rgba(232,236,235,.5);
}

/* ---------- 固定转化条 ---------- */
.fixed-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(250,250,248,.94);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-top:1px solid var(--line);
  transform:translateY(110%);transition:transform 300ms var(--ease);
}
.fixed-bar.show{transform:translateY(0)}
.fixed-bar-inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:64px;padding-top:8px;padding-bottom:8px;
}
.fixed-text{font-size:14px;color:var(--ink-700);margin:0;font-weight:600}
.fixed-text em{font-style:normal;color:var(--brand-deep)}
.fixed-actions{display:flex;gap:12px;flex:0 0 auto}
.fixed-actions .btn{min-width:112px}
@media (max-width:519px){
  .fixed-text{display:none}
  .fixed-actions{width:100%}
  .fixed-actions .btn{flex:1 1 0;min-width:0}
}

/* ---------- 回顶 ---------- */
.to-top{
  position:fixed;right:18px;bottom:82px;z-index:65;
  width:44px;height:44px;display:grid;place-items:center;
  border:1px solid var(--line);border-radius:var(--radius-btn);
  background:var(--surface);color:var(--ink-700);cursor:pointer;
  opacity:0;pointer-events:none;transition:opacity var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{border-color:var(--brand);color:var(--brand-deep)}
.to-top svg{width:18px;height:18px}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms var(--ease),transform 520ms var(--ease)}
.reveal.in{opacity:1;transform:translateY(0)}
@media (prefers-reduced-motion:reduce){
  .reveal{transform:none;transition:opacity 300ms linear}
  html{scroll-behavior:auto}
  .btn:hover svg{transform:none}
  .panel:hover,.device-card:hover{transform:none}
}