/* roulang page: index */
:root{
  --bg:#070C16;
  --bg-2:#0B1220;
  --panel:#0E1728;
  --panel-deep:#050A12;
  --primary:#2FD4E8;
  --primary-2:#1E8BFF;
  --accent:#FFB13C;
  --violet:#7C5CFF;
  --text:#E8EEF7;
  --text-2:#A9B6CB;
  --text-3:#6F7F99;
  --line:rgba(255,255,255,.07);
  --line-strong:rgba(255,255,255,.12);
  --ok:#3ED598;
  --warn:#FFB13C;
  --err:#FF6B6B;
  --r-card:20px;
  --r-img:16px;
  --r-btn:14px;
  --r-pill:999px;
  --shadow:0 12px 30px rgba(0,0,0,.35);
  --shadow-hover:0 18px 40px rgba(0,0,0,.5);
  --mono:ui-monospace,Menlo,Consolas,"Courier New",monospace;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  padding:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.drawer-open{overflow:hidden;}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary);text-decoration:none;transition:color .18s var(--ease);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;
}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;color:var(--text);line-height:1.35;}
p{margin:0 0 1.1em;color:var(--text-2);line-height:1.88;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:640px){.container{padding-left:32px;padding-right:32px;}}
@media (min-width:1024px){.container{padding-left:40px;padding-right:40px;}}
.grid-container{max-width:1200px;}
.section{padding:64px 0;position:relative;}
@media (min-width:1024px){.section{padding:96px 0;}}
.section-head{max-width:760px;margin-bottom:36px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.16em;color:var(--primary);
  text-transform:none;margin-bottom:14px;font-weight:600;
}
.eyebrow::before{
  content:"";width:18px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--primary-2));
}
.section-head h2{font-size:24px;line-height:1.4;}
@media (min-width:1024px){.section-head h2{font-size:30px;}}
.section-desc{color:var(--text-2);font-size:15px;margin-top:12px;max-width:46em;}
.hairline{
  height:1px;width:100%;
  background:linear-gradient(90deg,transparent,rgba(47,212,232,.35),transparent);
  border:0;margin:0;
}

/* ---------- Navigation ---------- */
.site-header{
  position:fixed;top:16px;left:0;right:0;z-index:200;
  transition:top .2s var(--ease);
}
.nav-shell{max-width:1200px;margin:0 auto;padding:0 16px;}
@media (min-width:640px){.nav-shell{padding:0 24px;}}
@media (min-width:1024px){.nav-shell{padding:0 32px;}}
.nav-bar{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  height:60px;padding:0 10px 0 18px;
  border-radius:var(--r-pill);
  background:rgba(10,17,29,.72);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border:1px solid rgba(255,255,255,.08);
  box-shadow:0 10px 30px rgba(0,0,0,.35);
  transition:height .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease);
}
.site-header.scrolled .nav-bar{
  height:52px;background:rgba(10,17,29,.92);
  box-shadow:0 14px 36px rgba(0,0,0,.5);
}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);flex:0 0 auto;}
.brand:hover{color:var(--text);}
.brand-mark{
  width:34px;height:34px;border-radius:11px;flex:0 0 auto;
  display:grid;place-items:center;
  border:1px solid rgba(47,212,232,.45);
  background:rgba(47,212,232,.08);
}
.brand-mark svg{width:19px;height:19px;display:block;}
.brand-text{font-size:15px;font-weight:700;letter-spacing:.02em;white-space:nowrap;}
.brand-text .short{display:none;}
@media (max-width:1023px){
  .brand-text{font-size:14px;}
  .brand-text .full{display:none;}
  .brand-text .short{display:inline;}
}
.nav-links{display:flex;align-items:center;gap:2px;}
.nav-links a{
  position:relative;display:inline-block;
  padding:8px 12px;border-radius:var(--r-pill);
  font-size:15px;color:var(--text-2);white-space:nowrap;
  transition:color .18s var(--ease),background .18s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:0;height:2px;border-radius:2px;background:var(--primary);
  transition:width .18s var(--ease);
}
.nav-links a:hover{color:var(--primary);}
.nav-links a:hover::after{width:16px;}
.nav-links a.active{color:var(--primary);}
.nav-links a.active::after{width:16px;}
.nav-cta{display:inline-flex;}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:50%;
  border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.04);
  align-items:center;justify-content:center;cursor:pointer;
  transition:border-color .18s var(--ease),background .18s var(--ease);
}
.nav-toggle:hover{border-color:rgba(47,212,232,.5);background:rgba(47,212,232,.1);}
.nav-toggle span{display:block;width:16px;height:1.6px;background:var(--text);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:16px;height:1.6px;background:var(--text);border-radius:2px;
  transition:transform .2s var(--ease);
}
.nav-toggle span::before{top:-5px;}
.nav-toggle span::after{top:5px;}
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:flex;}
}
.mobile-drawer{
  position:fixed;inset:0;z-index:190;
  display:flex;flex-direction:column;
  padding:96px 24px 32px;
  background:rgba(7,12,22,.96);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  opacity:0;pointer-events:none;transform:translateY(-10px);
  transition:opacity .22s var(--ease),transform .22s var(--ease);
}
.mobile-drawer.open{opacity:1;pointer-events:auto;transform:translateY(0);}
.mobile-drawer a.drawer-link{
  display:block;padding:18px 4px;font-size:19px;color:var(--text);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.mobile-drawer a.drawer-link:hover,.mobile-drawer a.drawer-link:focus{color:var(--primary);}
.mobile-drawer .drawer-cta{margin-top:28px;}
.mobile-drawer .drawer-cta .btn-primary{width:100%;justify-content:center;}

/* ---------- Buttons ---------- */
.btn-primary,.btn-ghost,.btn-text{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;border-radius:var(--r-btn);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn-primary{
  padding:14px 26px;color:#05121A;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  box-shadow:0 0 0 1px rgba(47,212,232,.55),0 10px 28px rgba(47,212,232,.30);
}
.btn-primary:hover{
  color:#05121A;transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(47,212,232,.7),0 14px 36px rgba(47,212,232,.42);
}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(47,212,232,.6),0 6px 16px rgba(47,212,232,.28);}
.btn-primary .arrow{transition:transform .18s var(--ease);}
.btn-primary:hover .arrow{transform:translateX(4px);}
.btn-ghost{
  padding:13px 24px;color:var(--primary);
  border:1px solid rgba(47,212,232,.5);background:transparent;
}
.btn-ghost:hover{color:var(--primary);background:rgba(47,212,232,.1);border-color:rgba(47,212,232,.75);}
.btn-ghost:active{transform:translateY(1px);}
.btn-text{
  padding:6px 0;color:var(--primary);font-size:14px;font-weight:600;
}
.btn-text:hover{color:#69E6F4;}
.btn-text .arrow{transition:transform .18s var(--ease);}
.btn-text:hover .arrow{transform:translateX(4px);}
.btn-sm{padding:9px 18px;font-size:14px;border-radius:var(--r-pill);}

/* ---------- Badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 10px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.02em;white-space:nowrap;
}
.badge-primary{color:var(--primary);background:rgba(47,212,232,.12);}
.badge-accent{color:var(--accent);background:rgba(255,177,60,.12);}
.badge-muted{color:var(--text-3);background:rgba(255,255,255,.06);}
.badge-violet{color:#B3A4FF;background:rgba(124,92,255,.16);}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding-top:118px;padding-bottom:64px;
  display:flex;align-items:center;
}
@media (min-width:1024px){
  .hero{min-height:78vh;padding-top:140px;padding-bottom:96px;}
}
.hero::before{
  content:"";position:absolute;inset:0;z-index:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.9;
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:
    linear-gradient(115deg,rgba(7,12,22,.96) 0%,rgba(7,12,22,.86) 42%,rgba(7,12,22,.42) 100%),
    repeating-linear-gradient(0deg,rgba(255,255,255,.035) 0 1px,transparent 1px 32px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.035) 0 1px,transparent 1px 32px);
}
.hero .container{position:relative;z-index:2;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;color:var(--primary);
  background:rgba(47,212,232,.1);
  border:1px solid rgba(47,212,232,.3);
  margin-bottom:18px;
}
.hero-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px rgba(47,212,232,.9);}
.hero h1{
  font-size:30px;line-height:1.32;margin-bottom:18px;
  max-width:16em;
}
@media (min-width:768px){.hero h1{font-size:38px;}}
@media (min-width:1024px){.hero h1{font-size:44px;}}
.hero h1 .hl{
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:16px;color:var(--text-2);max-width:34em;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:8px;}
@media (max-width:519px){
  .hero-actions{flex-direction:column;}
  .hero-actions .btn-primary,.hero-actions .btn-ghost{width:100%;}
}
.hero-metrics{
  display:flex;flex-wrap:wrap;gap:12px;margin-top:32px;
}
.metric{
  flex:1 1 150px;min-width:130px;
  padding:14px 16px;border-radius:var(--r-img);
  background:rgba(14,23,40,.62);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border:1px solid rgba(255,255,255,.10);
}
.metric-num{
  font-family:var(--mono);font-size:19px;font-weight:600;color:var(--text);
  line-height:1.4;
}
.metric-num.ok{color:var(--ok);}
.metric-label{font-size:12px;color:var(--text-3);margin-top:2px;}
.hero-visual{
  position:relative;margin-top:36px;border-radius:var(--r-card);overflow:hidden;
  border:1px solid rgba(255,255,255,.10);
  background:linear-gradient(135deg,#0B1220,#122033);
  box-shadow:var(--shadow);
}
@media (min-width:1024px){.hero-visual{margin-top:0;}}
.hero-visual img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10;}
.hero-visual .visual-caption{
  position:absolute;left:0;right:0;bottom:0;
  padding:26px 20px 18px;
  background:linear-gradient(0deg,rgba(5,10,18,.88) 0%,rgba(5,10,18,0) 100%);
  font-size:13px;color:var(--text-2);
}

/* ---------- Flow steps ---------- */
.flow{position:relative;display:grid;grid-template-columns:1fr;gap:28px;}
@media (min-width:1024px){.flow{grid-template-columns:repeat(3,1fr);gap:24px;}}
.flow::before{
  content:"";position:absolute;left:24px;top:6px;bottom:6px;width:1px;
  background:linear-gradient(180deg,rgba(47,212,232,.35),rgba(47,212,232,.05));
}
@media (min-width:1024px){
  .flow::before{
    left:6%;right:6%;top:26px;bottom:auto;width:auto;height:1px;
    background:linear-gradient(90deg,transparent,rgba(47,212,232,.4),transparent);
  }
}
.step{position:relative;padding-left:60px;}
@media (min-width:1024px){.step{padding-left:0;padding-top:64px;}}
.step-num{
  position:absolute;left:0;top:0;
  width:48px;height:48px;border-radius:50%;
  display:grid;place-items:center;
  font-family:var(--mono);font-size:16px;font-weight:600;color:#05121A;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  box-shadow:0 0 0 1px rgba(47,212,232,.4),0 10px 24px rgba(47,212,232,.22);
}
@media (min-width:1024px){.step-num{left:0;top:2px;}}
.step h3{font-size:18px;margin-bottom:8px;}
.step p{font-size:15px;color:var(--text-2);}

/* ---------- Feature rows ---------- */
.feature-row{
  display:grid;grid-template-columns:1fr;gap:28px;align-items:center;
  margin-bottom:56px;
}
.feature-row:last-child{margin-bottom:0;}
@media (min-width:1024px){
  .feature-row{grid-template-columns:1fr 1fr;gap:56px;margin-bottom:72px;}
  .feature-row.reverse .feature-media{order:2;}
  .feature-row.reverse .feature-body{order:1;}
}
.feature-media{
  border-radius:var(--r-card);overflow:hidden;
  border:1px solid rgba(255,255,255,.08);
  background:linear-gradient(135deg,#0B1220,#132339);
  box-shadow:var(--shadow);
}
.feature-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.feature-body h3{font-size:21px;margin:12px 0 12px;}
@media (min-width:1024px){.feature-body h3{font-size:23px;}}
.feature-body p{margin-bottom:10px;}
.feature-list{margin-top:16px;display:grid;gap:8px;}
.feature-list li{
  position:relative;padding-left:22px;font-size:14px;color:var(--text-2);
}
.feature-list li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:2px;
  background:linear-gradient(135deg,var(--accent),rgba(255,177,60,.45));
  transform:rotate(45deg);
}

/* ---------- Benefit cards ---------- */
.benefit-grid{margin-top:8px;}
.benefit-card{
  display:flex;flex-direction:column;height:100%;
  padding:26px 24px;border-radius:var(--r-card);
  background:var(--panel);border:1px solid var(--line);
  box-shadow:var(--shadow);
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.benefit-card:hover{
  transform:translateY(-4px);
  border-color:rgba(47,212,232,.3);
  box-shadow:var(--shadow-hover);
}
@media (min-width:1024px){
  .benefit-card.offset{margin-top:16px;}
}
.benefit-icon{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:rgba(47,212,232,.1);border:1px solid rgba(47,212,232,.25);
  color:var(--primary);margin-bottom:16px;
}
.benefit-icon svg{width:20px;height:20px;}
.benefit-card h3{font-size:18px;margin-bottom:10px;}
.benefit-card p{font-size:14px;color:var(--text-2);flex:1;}
.benefit-card .btn-text{margin-top:16px;}

/* ---------- Progress glass ---------- */
.glass-card{
  background:rgba(14,23,40,.62);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border:1px solid rgba(255,255,255,.10);
  border-radius:var(--r-card);
  padding:28px 24px;
  box-shadow:var(--shadow);
}
@media (min-width:1024px){.glass-card{padding:36px 32px;}}
.progress-head{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;margin-bottom:24px;}
.progress-head h3{font-size:19px;}
.progress-track{
  height:8px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.08);overflow:hidden;margin-bottom:22px;
}
.progress-fill{
  height:100%;width:68%;border-radius:var(--r-pill);
  background:linear-gradient(90deg,var(--primary),var(--primary-2));
  box-shadow:0 0 18px rgba(47,212,232,.5);
}
.mini-steps{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;}
@media (min-width:768px){.mini-steps{grid-template-columns:repeat(4,1fr);}}
.mini-step{
  padding:14px;border-radius:14px;background:rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.07);
}
.mini-step .idx{
  font-family:var(--mono);font-size:12px;color:var(--text-3);display:block;margin-bottom:6px;
}
.mini-step strong{display:block;font-size:14px;color:var(--text);margin-bottom:6px;font-weight:600;}
.mini-step .badge{height:22px;}

/* ---------- News list ---------- */
.news-head{display:flex;flex-wrap:wrap;gap:16px;align-items:flex-end;justify-content:space-between;margin-bottom:32px;}
.news-card{
  display:flex;flex-direction:column;height:100%;overflow:hidden;
  border-radius:var(--r-card);
  background:var(--panel);border:1px solid var(--line);
  box-shadow:var(--shadow);color:inherit;
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.news-card:hover{
  transform:translateY(-4px);color:inherit;
  border-color:rgba(47,212,232,.3);box-shadow:var(--shadow-hover);
}
.news-thumb{
  aspect-ratio:16/9;overflow:hidden;
  background:linear-gradient(135deg,#0B1220,#16283F);
}
.news-thumb img{width:100%;height:100%;object-fit:cover;}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-body h3{font-size:17px;line-height:1.5;}
.news-foot{
  margin-top:auto;padding-top:12px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  border-top:1px solid rgba(255,255,255,.06);
}
.news-date{font-family:var(--mono);font-size:12px;color:var(--text-3);}
.news-more{font-size:13px;color:var(--primary);display:inline-flex;align-items:center;gap:4px;}
.news-card:hover .news-more .arrow{transform:translateX(4px);}
.news-more .arrow{transition:transform .18s var(--ease);}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.empty-state{
  padding:48px 24px;text-align:center;border-radius:var(--r-card);
  background:var(--panel);border:1px dashed rgba(255,255,255,.14);
}
.empty-state .empty-ico{
  width:52px;height:52px;margin:0 auto 16px;border-radius:14px;
  display:grid;place-items:center;color:var(--primary);
  background:rgba(47,212,232,.08);border:1px solid rgba(47,212,232,.24);
}
.empty-state p{font-size:15px;margin-bottom:18px;}

/* ---------- FAQ ---------- */
.faq-list{max-width:880px;}
.faq-item{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-img);
  margin-bottom:12px;overflow:hidden;
  transition:border-color .18s var(--ease);
}
.faq-item:hover{border-color:rgba(47,212,232,.22);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;background:none;border:0;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--text);text-align:left;line-height:1.6;
}
.faq-q:hover{color:var(--primary);}
.faq-ico{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;
  display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.14);color:var(--text-2);
  transition:transform .22s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.faq-item.open .faq-ico{transform:rotate(180deg);color:var(--primary);border-color:rgba(47,212,232,.5);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s var(--ease);}
.faq-a-inner{
  padding:16px 20px;border-top:1px solid rgba(255,255,255,.07);
  font-size:15px;line-height:1.85;color:var(--text-2);
}

/* ---------- CTA band ---------- */
.cta-band{position:relative;overflow:hidden;padding:64px 0;}
@media (min-width:1024px){.cta-band{padding:88px 0;}}
.cta-band::before{
  content:"";position:absolute;inset:0;z-index:0;
  background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;opacity:.5;
}
.cta-band::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(120deg,rgba(7,12,22,.96),rgba(7,12,22,.7));
}
.cta-band .container{position:relative;z-index:2;}
.cta-card{
  display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between;
  padding:32px 28px;border-radius:var(--r-card);
  background:rgba(14,23,40,.62);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border:1px solid rgba(255,255,255,.10);
  box-shadow:var(--shadow);
}
.cta-card h2{font-size:22px;margin-bottom:8px;}
.cta-card p{font-size:15px;margin:0;}
@media (min-width:1024px){.cta-card h2{font-size:26px;}}
@media (max-width:639px){
  .cta-card .btn-primary{width:100%;}
}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--panel-deep);
  border-top:1px solid transparent;
  border-image:linear-gradient(90deg,transparent,rgba(47,212,232,.35),transparent) 1;
  padding:56px 0 24px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;color:var(--text);}
.footer-brand .brand-text{font-size:15px;}
.footer-desc{font-size:14px;color:var(--text-2);max-width:26em;}
.footer-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px;letter-spacing:.04em;}
.footer-links{display:grid;gap:10px;}
.footer-links a{font-size:14px;color:var(--text-2);display:inline-block;transition:color .18s var(--ease),transform .18s var(--ease);}
.footer-links a:hover{color:var(--primary);transform:translateX(2px);}
.footer-info{display:grid;gap:10px;font-size:14px;color:var(--text-2);}
.footer-info strong{color:var(--text);font-weight:600;}
.footer-col{margin-bottom:32px;}
@media (min-width:768px){.footer-col{margin-bottom:24px;}}
.footer-bottom{
  margin-top:24px;padding-top:20px;border-top:1px solid rgba(255,255,255,.07);
  display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;
  font-size:12px;color:var(--text-3);
}
.footer-bottom .kws{letter-spacing:.04em;}

/* ---------- Reveal ---------- */
.reveal-up{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal-up.in{opacity:1;transform:translateY(0);}
@media (prefers-reduced-motion:reduce){
  .reveal-up{opacity:1;transform:none;transition:none;}
  *{animation:none!important;transition:none!important;}
}

/* roulang page: article */
:root{
  --bg:#070C16;
  --bg-2:#0B1220;
  --panel:#0E1728;
  --panel-2:#101B2E;
  --primary:#2FD4E8;
  --primary-2:#1E8BFF;
  --amber:#FFB13C;
  --violet:#7C5CFF;
  --text:#E8EEF7;
  --text-2:#A9B6CB;
  --muted:#6F7F99;
  --line:rgba(255,255,255,.07);
  --line-strong:rgba(255,255,255,.14);
  --success:#3ED598;
  --danger:#FF6B6B;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --pill:999px;
  --shadow:0 12px 30px rgba(0,0,0,.35);
  --shadow-lift:0 18px 40px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(47,212,232,.55),0 10px 28px rgba(47,212,232,.30);
  --mono:ui-monospace,Menlo,Consolas,"Courier New",monospace;
  --sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;padding:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--primary);text-decoration:none;transition:color .18s ease-out;}
a:hover{color:#7FE9F6;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
  border-radius:6px;
}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em;line-height:1.35;color:var(--text);}
p{margin:0;}
ul,ol{margin:0;padding:0;}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
::selection{background:rgba(47,212,232,.28);color:#fff;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:640px){.container{padding:0 32px;}}
@media (min-width:1024px){.container{max-width:1240px;padding:0 40px;}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;
  font-size:15px;font-weight:600;
  border-radius:14px;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
  white-space:nowrap;
  line-height:1.2;
}
.btn .arrow{transition:transform .18s ease-out;display:inline-block;}
.btn:hover .arrow{transform:translateX(4px);}
.btn-primary{
  color:#05121A;
  background:linear-gradient(120deg,var(--primary),var(--primary-2));
  box-shadow:var(--glow);
}
.btn-primary:hover{color:#05121A;box-shadow:0 0 0 1px rgba(47,212,232,.7),0 14px 36px rgba(47,212,232,.42);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(47,212,232,.5),0 6px 16px rgba(47,212,232,.28);}
.btn-outline{
  color:var(--primary);
  background:transparent;
  border:1px solid rgba(47,212,232,.5);
}
.btn-outline:hover{background:rgba(47,212,232,.10);color:var(--primary);border-color:rgba(47,212,232,.8);}
.btn-outline:active{transform:translateY(1px);}
.btn-sm{padding:9px 18px;font-size:14px;border-radius:var(--pill);}
.btn-block{width:100%;}
.btn-ghost{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-size:14px;font-weight:600;
  padding:4px 0;border-radius:6px;
}
.btn-ghost .arrow{transition:transform .18s ease-out;}
.btn-ghost:hover .arrow{transform:translateX(4px);}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 10px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  border-radius:var(--pill);
  line-height:1;
}
.badge-primary{color:var(--primary);background:rgba(47,212,232,.12);border:1px solid rgba(47,212,232,.28);}
.badge-amber{color:var(--amber);background:rgba(255,177,60,.12);border:1px solid rgba(255,177,60,.30);}
.badge-muted{color:var(--text-2);background:rgba(255,255,255,.06);border:1px solid var(--line);}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:16px;left:0;right:0;z-index:80;
  padding:0 16px;
  transition:padding .2s ease-out;
}
.nav-shell{
  max-width:1200px;margin:0 auto;
  display:flex;align-items:center;gap:16px;
  height:60px;padding:0 10px 0 18px;
  border-radius:var(--pill);
  background:rgba(10,17,29,.72);
  -webkit-backdrop-filter:blur(12px) saturate(140%);
  backdrop-filter:blur(12px) saturate(140%);
  border:1px solid var(--line-strong);
  box-shadow:0 10px 30px rgba(0,0,0,.35);
  transition:height .2s ease-out,background .2s ease-out,box-shadow .2s ease-out;
}
.site-header.is-scrolled .nav-shell{
  height:52px;
  background:rgba(10,17,29,.92);
  box-shadow:0 14px 34px rgba(0,0,0,.5);
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{
  width:32px;height:32px;flex:0 0 32px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:rgba(47,212,232,.10);
  border:1px solid rgba(47,212,232,.30);
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{font-size:16px;font-weight:700;letter-spacing:.02em;white-space:nowrap;}
.nav-links{
  display:flex;align-items:center;gap:2px;
  margin-left:auto;
}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:15px;
  color:var(--text-2);
  border-radius:var(--pill);
  transition:color .18s ease-out,background .18s ease-out;
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;
  background:var(--primary);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform .18s ease-out;
}
.nav-links a:hover{color:var(--primary);background:rgba(47,212,232,.06);}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1);}
.nav-links a.active{color:var(--primary);}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-toggle{
  display:none;
  width:40px;height:40px;border-radius:12px;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);
  padding:0;
  align-items:center;justify-content:center;
  flex-direction:column;gap:4px;
}
.nav-toggle span{
  display:block;width:18px;height:2px;border-radius:2px;background:var(--text);
  transition:transform .2s ease-out,opacity .2s ease-out;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

.mobile-drawer{
  position:fixed;inset:0;z-index:90;
  display:none;
  background:rgba(7,12,22,.94);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  backdrop-filter:blur(18px) saturate(140%);
  padding:96px 24px 40px;
  overflow-y:auto;
}
.mobile-drawer.is-open{display:block;}
.drawer-links{display:flex;flex-direction:column;margin-bottom:28px;}
.drawer-links a{
  font-size:20px;font-weight:600;
  color:var(--text);
  padding:18px 4px;
  border-bottom:1px solid var(--line);
  transition:color .18s ease-out,padding-left .18s ease-out;
}
.drawer-links a:hover,.drawer-links a.active{color:var(--primary);padding-left:10px;}

/* ---------- 文章页头部 ---------- */
.page-hero{
  position:relative;
  padding:148px 0 60px;
  background-color:var(--bg-2);
  background-image:
    linear-gradient(105deg,rgba(7,12,22,.96) 10%,rgba(7,12,22,.80) 55%,rgba(7,12,22,.62) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:32px 32px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.8),transparent 85%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.8),transparent 85%);
}
.page-hero .container{position:relative;z-index:1;}

.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);
  margin-bottom:22px;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:rgba(255,255,255,.22);}
.breadcrumb .current{
  color:var(--text-2);
  max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
@media (max-width:639px){.breadcrumb .current{max-width:180px;}}

.article-head{max-width:860px;}
.article-head .head-badge{margin-bottom:18px;display:flex;flex-wrap:wrap;gap:8px;}
.article-head h1{
  font-size:clamp(26px,3.6vw,40px);
  line-height:1.32;
  margin-bottom:22px;
  letter-spacing:.01em;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 24px;
  font-size:13px;color:var(--text-2);
  padding-bottom:22px;
  border-bottom:1px solid var(--line);
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:7px;}
.article-meta .meta-item::before{
  content:"";width:5px;height:5px;border-radius:50%;background:rgba(47,212,232,.7);
}
.article-meta time,.article-meta .num{font-family:var(--mono);font-weight:600;color:var(--text);}

/* ---------- 正文 ---------- */
.article-main{padding:64px 0 0;}
@media (min-width:1024px){.article-main{padding:88px 0 0;}}
.article-wrap{max-width:760px;margin:0 auto;}
.article-body{
  font-size:17px;
  line-height:1.9;
  color:var(--text-2);
  word-break:break-word;
}
.article-body p{margin:1.2em 0;color:var(--text-2);}
.article-body > p:first-child{margin-top:0;}
.article-body h2{
  position:relative;
  font-size:24px;font-weight:700;color:var(--text);
  margin:2.2em 0 .8em;
  padding-left:16px;
  line-height:1.45;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;
  border-radius:2px;
  background:linear-gradient(180deg,var(--primary),var(--primary-2));
}
.article-body h3{
  position:relative;
  font-size:19px;font-weight:600;color:var(--text);
  margin:1.8em 0 .6em;
  padding-left:14px;
}
.article-body h3::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;
  border-radius:2px;background:rgba(255,177,60,.8);
}
.article-body ul,.article-body ol{margin:1.1em 0;padding-left:1.4em;}
.article-body ul{list-style:none;}
.article-body ul li{position:relative;padding-left:18px;margin:.5em 0;}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:6px;height:6px;border-radius:50%;
  background:rgba(47,212,232,.85);
}
.article-body ol{counter-reset:li;}
.article-body ol li{list-style:decimal;margin:.5em 0;padding-left:4px;}
.article-body blockquote{
  margin:1.6em 0;
  padding:16px 22px;
  border-left:3px solid rgba(47,212,232,.7);
  background:rgba(47,212,232,.05);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:var(--text-2);
  font-style:italic;
}
.article-body blockquote p{margin:.3em 0;}
.article-body img{
  width:100%;height:auto;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  margin:1.6em 0 .6em;
}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{
  font-size:13px;color:var(--muted);text-align:center;margin-top:.6em;
}
.article-body table{
  width:100%;
  display:block;
  overflow-x:auto;
  border-collapse:collapse;
  margin:1.6em 0;
  font-size:15px;
  border-radius:var(--r-sm);
  border:1px solid var(--line);
}
.article-body table th{
  background:rgba(47,212,232,.10);
  color:var(--text);
  font-weight:600;
  text-align:left;
  padding:12px 14px;
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.article-body table td{
  padding:12px 14px;
  border-bottom:1px solid var(--line);
  color:var(--text-2);
}
.article-body table tr:nth-child(even) td{background:rgba(255,255,255,.02);}
.article-body pre{
  margin:1.6em 0;
  padding:18px 20px;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow-x:auto;
  font-family:var(--mono);
  font-size:14px;
  line-height:1.7;
  color:#BFE9F5;
}
.article-body code{
  font-family:var(--mono);
  font-size:.92em;
  background:rgba(47,212,232,.10);
  color:#9FE9F6;
  padding:2px 6px;
  border-radius:6px;
}
.article-body pre code{background:none;padding:0;color:inherit;}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(47,212,232,.35);}
.article-body a:hover{border-bottom-color:var(--primary);}
.article-body hr{
  border:0;height:1px;margin:2.4em 0;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.18),transparent);
}

/* 空态 */
.article-empty{
  max-width:640px;margin:0 auto;
  padding:48px 32px;
  text-align:center;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow);
}
.article-empty .empty-icon{
  width:64px;height:64px;margin:0 auto 20px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  border:2px solid rgba(47,212,232,.35);
  background:rgba(47,212,232,.08);
  color:var(--primary);
}
.article-empty h2{font-size:22px;margin-bottom:12px;}
.article-empty p{color:var(--text-2);font-size:15px;margin-bottom:26px;}

/* 文末操作 */
.article-foot{
  max-width:760px;margin:40px auto 0;
  padding-top:28px;
  border-top:1px solid var(--line);
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px;}
.article-actions{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
}
.copy-btn{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--text-2);
  padding:10px 18px;border-radius:var(--pill);
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.03);
  transition:color .18s ease-out,border-color .18s ease-out,background .18s ease-out;
}
.copy-btn:hover{color:var(--primary);border-color:rgba(47,212,232,.45);background:rgba(47,212,232,.07);}
.copy-btn.is-done{color:var(--success);border-color:rgba(62,213,152,.45);}

/* ---------- 相关推荐 ---------- */
.related{padding:80px 0 0;}
.section-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:16px;margin-bottom:32px;
}
.section-head h2{font-size:clamp(22px,2.6vw,30px);}
.section-head .sub{font-size:14px;color:var(--muted);margin-top:8px;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
@media (max-width:1023px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}}
@media (max-width:639px){.card-grid{grid-template-columns:minmax(0,1fr);}}
.rel-card{
  display:flex;flex-direction:column;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--shadow);
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
  color:var(--text);
}
.rel-card:hover{
  transform:translateY(-4px);
  border-color:rgba(47,212,232,.30);
  box-shadow:var(--shadow-lift);
  color:var(--text);
}
.rel-thumb{
  position:relative;aspect-ratio:16/9;
  background:linear-gradient(135deg,rgba(47,212,232,.16),rgba(124,92,255,.18));
  overflow:hidden;
}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.rel-card:hover .rel-thumb img{transform:scale(1.04);}
.rel-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rel-body h3{
  font-size:17px;line-height:1.5;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-body p{
  font-size:14px;color:var(--text-2);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-foot{
  margin-top:auto;padding-top:12px;
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--muted);
}
.rel-foot .read{color:var(--primary);font-weight:600;display:inline-flex;align-items:center;gap:5px;}
.rel-foot .read .arrow{transition:transform .18s ease-out;}
.rel-card:hover .rel-foot .read .arrow{transform:translateX(4px);}

/* ---------- 底部 CTA ---------- */
.cta-band{padding:80px 0 0;}
.cta-inner{
  position:relative;
  overflow:hidden;
  border-radius:24px;
  padding:44px 36px;
  background-color:var(--panel);
  background-image:
    linear-gradient(115deg,rgba(7,12,22,.94) 20%,rgba(7,12,22,.62) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  border:1px solid rgba(255,255,255,.10);
  box-shadow:var(--shadow);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
}
.cta-inner h2{font-size:clamp(21px,2.4vw,27px);margin-bottom:10px;}
.cta-inner p{font-size:15px;color:var(--text-2);}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:88px;
  padding:64px 0 28px;
  background:#05090F;
  border-top:1px solid transparent;
  border-image:linear-gradient(90deg,transparent,rgba(47,212,232,.35),transparent) 1;
}
.footer-col{margin-bottom:28px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-text{font-size:16px;font-weight:700;color:var(--text);}
.footer-desc{font-size:14px;color:var(--muted);max-width:240px;line-height:1.8;}
.footer-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{
  font-size:14px;color:var(--muted);
  transition:color .18s ease-out,transform .18s ease-out;
  display:inline-block;
}
.footer-links a:hover{color:var(--primary);transform:translateX(2px);}
.footer-info{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--muted);}
.footer-info strong{color:var(--text-2);font-weight:600;}
.footer-bottom{
  margin-top:24px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.06);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:12px;color:rgba(111,127,153,.85);
}
.footer-bottom .kws{letter-spacing:.04em;}

/* ---------- 滚动进场 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease-out,transform .5s ease-out;}
.reveal.is-in{opacity:1;transform:translateY(0);}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .brand-text{font-size:15px;}
  .article-head{max-width:100%;}
}
@media (max-width:767px){
  .page-hero{padding:128px 0 44px;}
  .article-main{padding:48px 0 0;}
  .article-body{font-size:16px;line-height:1.88;}
  .article-body h2{font-size:21px;}
  .article-body h3{font-size:17px;}
  .article-actions{flex-direction:column;align-items:stretch;}
  .article-actions .btn,.article-actions .copy-btn{width:100%;justify-content:center;}
  .cta-inner{padding:32px 22px;flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .related{padding-top:56px;}
  .cta-band{padding-top:56px;}
  .site-footer{margin-top:64px;padding-top:48px;}
}
@media (max-width:519px){
  .nav-shell{padding-left:14px;gap:10px;}
  .brand-mark{width:28px;height:28px;flex-basis:28px;}
  .brand-mark svg{width:17px;height:17px;}
  .article-head h1{font-size:24px;}
  .article-meta{font-size:12px;gap:8px 16px;}
}

/* roulang page: category1 */
:root{
  --bg:#070C16; --surface:#0B1220; --panel:#0E1728;
  --primary:#2FD4E8; --primary-2:#1E8BFF; --gold:#FFB13C; --violet:#7C5CFF;
  --text:#E8EEF7; --muted:#A9B6CB; --dim:#6F7F99;
  --line:rgba(255,255,255,.07); --line-strong:rgba(255,255,255,.13);
  --r-card:20px; --r-img:16px; --r-input:12px; --r-pill:999px; --r-btn:14px;
  --shadow:0 12px 30px rgba(0,0,0,.35);
  --shadow-hover:0 18px 42px rgba(0,0,0,.5);
  --ff:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --mono:ui-monospace,Menlo,Consolas,"Courier New",monospace;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--bg);color:var(--text);font-family:var(--ff);
  font-size:16px;line-height:1.85;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color .18s ease-out;}
a:hover{color:var(--primary);}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
  outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;
}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;border:0;background:none;cursor:pointer;color:inherit;}
::selection{background:rgba(47,212,232,.28);color:#fff;}

.container{
  width:100%;max-width:var(--container);margin:0 auto;
  padding-left:40px;padding-right:40px;
}
.section{padding:96px 0;}
.section--tight{padding:64px 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;color:var(--primary);
  text-transform:none;margin-bottom:14px;font-weight:600;
}
.eyebrow::before{
  content:"";width:16px;height:3px;border-radius:2px;
  background:var(--gold);transform:skewX(-24deg);
}
.h2{font-size:30px;line-height:1.35;font-weight:700;letter-spacing:.01em;}
.section-head{max-width:720px;margin-bottom:48px;}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px;}
.divider{
  height:1px;border:0;margin:0;
  background:linear-gradient(90deg,rgba(47,212,232,0),rgba(47,212,232,.35),rgba(47,212,232,0));
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:900;padding:16px 0 0;
  transition:padding .18s ease-out;
}
.nav-shell{
  max-width:var(--container);margin:0 auto;
  display:flex;align-items:center;gap:24px;
  height:60px;padding:0 12px 0 20px;
  border-radius:var(--r-pill);
  background:rgba(10,17,29,.72);
  border:1px solid var(--line-strong);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  box-shadow:0 10px 30px rgba(0,0,0,.28);
  transition:height .18s ease-out,background .18s ease-out,box-shadow .18s ease-out;
}
.site-header.is-scrolled{padding-top:10px;}
.site-header.is-scrolled .nav-shell{
  height:52px;background:rgba(10,17,29,.92);
  box-shadow:0 14px 36px rgba(0,0,0,.45);
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:rgba(47,212,232,.10);border:1px solid rgba(47,212,232,.28);
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{font-size:16px;font-weight:700;letter-spacing:.02em;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-links a{
  position:relative;padding:8px 14px;border-radius:var(--r-pill);
  font-size:15px;color:var(--muted);transition:color .18s ease-out,background .18s ease-out;
}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:2px;width:14px;height:2px;
  border-radius:2px;background:var(--primary);transform:translateX(-50%) scaleX(0);
  transition:transform .18s ease-out;
}
.nav-links a:hover{color:var(--primary);background:rgba(47,212,232,.07);}
.nav-links a:hover::after{transform:translateX(-50%) scaleX(1);}
.nav-links a.active{color:var(--text);background:rgba(47,212,232,.12);}
.nav-links a.active::after{transform:translateX(-50%) scaleX(1);}
.nav-cta{
  flex-shrink:0;display:inline-flex;align-items:center;gap:8px;
  height:40px;padding:0 18px;border-radius:var(--r-pill);
  font-size:14px;font-weight:600;color:#05121A;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  box-shadow:0 0 0 1px rgba(47,212,232,.5),0 10px 24px rgba(47,212,232,.28);
  transition:box-shadow .18s ease-out,transform .18s ease-out;
}
.nav-cta:hover{color:#05121A;box-shadow:0 0 0 1px rgba(47,212,232,.75),0 14px 32px rgba(47,212,232,.42);}
.nav-cta:active{transform:translateY(1px);}
.nav-cta i{font-size:12px;transition:transform .18s ease-out;}
.nav-cta:hover i{transform:translateX(4px);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-pill);
  align-items:center;justify-content:center;font-size:17px;
  color:var(--text);border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);margin-left:auto;
}
.nav-toggle:hover{color:var(--primary);border-color:rgba(47,212,232,.4);}

.mobile-drawer{
  position:fixed;inset:0;z-index:1200;display:none;
  background:rgba(7,12,22,.94);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  padding:24px;
}
.mobile-drawer.is-open{display:flex;flex-direction:column;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;}
.drawer-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;}
.drawer-close{
  width:42px;height:42px;border-radius:var(--r-pill);display:grid;place-items:center;
  border:1px solid var(--line-strong);font-size:16px;
}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  padding:18px 4px;font-size:19px;border-bottom:1px solid var(--line);
  color:var(--muted);
}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--primary);}
.drawer-cta{
  margin-top:28px;display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;border-radius:var(--r-btn);font-weight:700;font-size:16px;color:#05121A;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  box-shadow:0 0 0 1px rgba(47,212,232,.5),0 12px 28px rgba(47,212,232,.3);
}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;margin-top:-76px;
  padding:132px 0 56px;
  min-height:268px;
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(120deg,rgba(7,12,22,.96) 12%,rgba(7,12,22,.78) 46%,rgba(7,12,22,.42) 100%),
    linear-gradient(rgba(47,212,232,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(47,212,232,.06) 1px,transparent 1px),
    url("/assets/images/backpic/back-1.webp");
  background-size:cover,32px 32px,32px 32px,cover;
  background-position:center,0 0,0 0,center;
  background-repeat:no-repeat,repeat,repeat,no-repeat;
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:120px;
  background:linear-gradient(180deg,rgba(7,12,22,0),var(--bg));
}
.hero-inner{position:relative;z-index:2;}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--dim);margin-bottom:18px;
}
.breadcrumb a{color:var(--dim);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{opacity:.6;}
.breadcrumb .current{color:var(--muted);}
.hero h1{
  font-size:44px;line-height:1.28;font-weight:700;letter-spacing:.01em;
  max-width:860px;
}
.hero h1 .accent{color:var(--primary);}
.hero-lead{
  margin-top:18px;max-width:640px;font-size:17px;color:var(--muted);
}
.hero-stats{
  margin-top:32px;display:flex;flex-wrap:wrap;gap:12px;
}
.stat-chip{
  display:flex;flex-direction:column;gap:2px;
  padding:12px 20px;border-radius:var(--r-pill);
  background:rgba(14,23,40,.62);
  border:1px solid rgba(255,255,255,.10);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
.stat-chip .num{
  font-family:var(--mono);font-size:15px;font-weight:600;color:var(--primary);
}
.stat-chip .lbl{font-size:12px;color:var(--dim);}

/* ============ 准备清单 ============ */
.prep-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.prep-card{
  position:relative;padding:28px 24px 24px;border-radius:var(--r-card);
  background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow);
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.prep-card:hover{transform:translateY(-4px);border-color:rgba(47,212,232,.3);box-shadow:var(--shadow-hover);}
.prep-card .ico{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  background:rgba(47,212,232,.12);color:var(--primary);margin-bottom:18px;font-size:17px;
}
.prep-card h3{font-size:19px;font-weight:600;margin-bottom:10px;}
.prep-card p{font-size:15px;color:var(--muted);line-height:1.8;}
.prep-card .tag{
  position:absolute;top:20px;right:20px;
  font-family:var(--mono);font-size:12px;color:var(--gold);
  padding:2px 10px;border-radius:var(--r-pill);
  background:rgba(255,177,60,.12);border:1px solid rgba(255,177,60,.28);
}

/* ============ 时间轴 + 目录 ============ */
.guide-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start;
}
.timeline{position:relative;padding-left:44px;}
.timeline::before{
  content:"";position:absolute;left:15px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,rgba(47,212,232,.55),rgba(47,212,232,.08));
  border-radius:2px;
}
.tl-item{position:relative;padding-bottom:44px;}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:absolute;left:-44px;top:2px;width:32px;height:32px;border-radius:50%;
  display:grid;place-items:center;font-family:var(--mono);font-size:13px;font-weight:600;
  color:#05121A;background:linear-gradient(135deg,var(--primary),var(--primary-2));
  box-shadow:0 0 0 4px rgba(47,212,232,.12);
}
.tl-body{
  padding:26px 28px;border-radius:var(--r-card);
  background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow);
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.tl-body:hover{transform:translateY(-4px);border-color:rgba(47,212,232,.3);box-shadow:var(--shadow-hover);}
.tl-body h3{font-size:19px;font-weight:600;margin-bottom:10px;}
.tl-body p{font-size:15px;color:var(--muted);line-height:1.85;}
.tl-body p + p{margin-top:10px;}
.tl-thumb{
  margin-top:18px;border-radius:var(--r-img);overflow:hidden;
  border:1px solid rgba(255,255,255,.08);aspect-ratio:16/9;
  background:linear-gradient(135deg,rgba(47,212,232,.12),rgba(14,23,40,.9));
}
.tl-thumb img{width:100%;height:100%;object-fit:cover;}

.toc{
  position:sticky;top:96px;padding:22px;
  border-radius:var(--r-card);background:var(--surface);
  border:1px solid var(--line);box-shadow:var(--shadow);
}
.toc-title{
  font-size:13px;color:var(--dim);letter-spacing:.12em;margin-bottom:14px;
}
.toc nav{display:flex;flex-direction:column;gap:4px;}
.toc a{
  display:flex;align-items:center;gap:10px;
  padding:9px 12px;border-radius:var(--r-pill);
  font-size:14px;color:var(--muted);
  transition:background .18s ease-out,color .18s ease-out,transform .18s ease-out;
}
.toc a .n{font-family:var(--mono);font-size:12px;color:var(--dim);}
.toc a:hover{background:rgba(47,212,232,.09);color:var(--primary);transform:translateX(2px);}
.toc a.is-active{background:rgba(47,212,232,.14);color:var(--primary);}
.toc a.is-active .n{color:var(--primary);}
.toc-foot{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  font-size:13px;color:var(--dim);line-height:1.7;
}

/* ============ 场景 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.scene-card{
  display:flex;flex-direction:column;
  padding:26px;border-radius:var(--r-card);
  background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow);
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.scene-card:hover{transform:translateY(-4px);border-color:rgba(47,212,232,.3);box-shadow:var(--shadow-hover);}
.scene-card .badge{
  align-self:flex-start;font-size:12px;padding:3px 12px;border-radius:var(--r-pill);
  color:var(--primary);background:rgba(47,212,232,.12);margin-bottom:16px;
}
.scene-card h3{font-size:19px;font-weight:600;margin-bottom:10px;}
.scene-card p{font-size:15px;color:var(--muted);flex:1;}
.scene-card .go{
  margin-top:18px;font-size:14px;color:var(--primary);display:inline-flex;align-items:center;gap:6px;
}
.scene-card .go i{font-size:12px;transition:transform .18s ease-out;}
.scene-card:hover .go i{transform:translateX(4px);}

/* ============ 数据条 ============ */
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);background:var(--line);
}
.metric{
  padding:32px 24px;background:var(--surface);text-align:left;
}
.metric .v{
  font-family:var(--mono);font-size:32px;font-weight:600;
  color:var(--primary);line-height:1.2;margin-bottom:6px;
}
.metric .v.gold{color:var(--gold);}
.metric .k{font-size:14px;color:var(--dim);}

/* ============ FAQ ============ */
.faq-list{max-width:860px;margin:0 auto;}
.faq-item{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-img);
  margin-bottom:12px;overflow:hidden;transition:border-color .18s ease-out;
}
.faq-item[open]{border-color:rgba(47,212,232,.3);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:600;cursor:pointer;
  list-style:none;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--primary);}
.faq-item summary .arrow{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;font-size:11px;
  border:1px solid var(--line-strong);color:var(--muted);
  transition:transform .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.faq-item[open] summary .arrow{
  transform:rotate(180deg);color:var(--primary);border-color:rgba(47,212,232,.45);
}
.faq-answer{
  padding:16px 22px 20px;font-size:15px;color:var(--muted);
  line-height:1.85;border-top:1px solid var(--line);
}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:28px;
  padding:56px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  background-image:
    linear-gradient(120deg,rgba(7,12,22,.95),rgba(7,12,22,.62)),
    url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  border:1px solid rgba(255,255,255,.10);
  box-shadow:0 24px 60px rgba(0,0,0,.45);
}
.cta-band h2{font-size:28px;line-height:1.35;font-weight:700;max-width:560px;}
.cta-band p{margin-top:12px;color:var(--muted);font-size:16px;max-width:520px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex-shrink:0;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;transition:all .18s ease-out;
}
.btn-primary{
  color:#05121A;background:linear-gradient(135deg,var(--primary),var(--primary-2));
  box-shadow:0 0 0 1px rgba(47,212,232,.55),0 10px 28px rgba(47,212,232,.3);
}
.btn-primary:hover{
  color:#05121A;box-shadow:0 0 0 1px rgba(47,212,232,.75),0 16px 36px rgba(47,212,232,.46);
}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(47,212,232,.6),0 8px 18px rgba(47,212,232,.28);}
.btn-primary i{font-size:12px;transition:transform .18s ease-out;}
.btn-primary:hover i{transform:translateX(4px);}
.btn-ghost{
  color:var(--primary);border:1px solid rgba(47,212,232,.5);background:transparent;
}
.btn-ghost:hover{color:var(--primary);background:rgba(47,212,232,.1);border-color:rgba(47,212,232,.8);}
.btn-ghost:active{transform:translateY(1px);}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;background:#05090F;
  border-top:1px solid transparent;
  background-image:linear-gradient(#05090F,#05090F),
    linear-gradient(90deg,rgba(47,212,232,0),rgba(47,212,232,.4),rgba(47,212,232,0));
  background-origin:border-box;background-clip:padding-box,border-box;
  padding:64px 0 24px;
}
.footer-col{margin-bottom:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-desc{font-size:14px;color:var(--dim);line-height:1.8;max-width:260px;}
.footer-title{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--text);}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:var(--dim);transition:color .18s ease-out,transform .18s ease-out;}
.footer-links a:hover{color:var(--primary);transform:translateX(2px);}
.footer-info{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--dim);}
.footer-info strong{color:var(--muted);font-weight:600;}
.footer-bottom{
  margin-top:16px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:12px;color:var(--dim);flex-wrap:wrap;
}
.footer-bottom .kws{color:#4C5A72;}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .container{padding-left:32px;padding-right:32px;}
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .hero{margin-top:-70px;padding:120px 0 48px;min-height:0;}
  .hero h1{font-size:34px;}
  .hero-lead{font-size:16px;}
  .section{padding:64px 0;}
  .section--tight{padding:48px 0;}
  .guide-layout{grid-template-columns:1fr;gap:32px;}
  .toc{position:static;order:-1;}
  .toc nav{flex-direction:row;flex-wrap:wrap;}
  .toc a{padding:7px 12px;font-size:13px;}
  .prep-grid,.scene-grid{grid-template-columns:repeat(2,1fr);}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .cta-band{flex-direction:column;align-items:flex-start;padding:44px 32px;}
  .h2{font-size:26px;}
}
@media (max-width:640px){
  .container{padding-left:20px;padding-right:20px;}
  .brand-text{font-size:15px;}
  .hero{padding:112px 0 40px;}
  .hero h1{font-size:27px;line-height:1.35;}
  .hero-stats{gap:8px;}
  .stat-chip{padding:10px 16px;}
  .section{padding:52px 0;}
  .h2{font-size:23px;}
  .prep-grid,.scene-grid{grid-template-columns:1fr;gap:16px;}
  .metrics{grid-template-columns:1fr;}
  .metric{padding:24px 20px;}
  .timeline{padding-left:36px;}
  .timeline::before{left:13px;}
  .tl-dot{left:-36px;width:28px;height:28px;font-size:12px;}
  .tl-body{padding:20px;}
  .cta-band{padding:36px 22px;border-radius:22px;}
  .cta-band h2{font-size:22px;}
  .cta-actions{width:100%;}
  .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .faq-item summary{padding:16px 18px;font-size:15px;}
  .faq-answer{padding:14px 18px 18px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category2 */
:root{
  --bg:#070C16;
  --bg-2:#0B1220;
  --panel:#0E1728;
  --main:#2FD4E8;
  --main-2:#1E8BFF;
  --amber:#FFB13C;
  --violet:#7C5CFF;
  --text:#E8EEF7;
  --text-2:#A9B6CB;
  --text-3:#6F7F99;
  --line:rgba(255,255,255,.07);
  --line-2:rgba(255,255,255,.12);
  --success:#3ED598;
  --error:#FF6B6B;
  --r-card:20px;
  --r-img:16px;
  --r-btn:14px;
  --r-pill:999px;
  --shadow:0 12px 30px rgba(0,0,0,.35);
  --shadow-strong:0 18px 42px rgba(0,0,0,.48);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:ui-monospace,Menlo,Consolas,"Courier New",monospace;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
a:hover,a:focus{color:var(--main);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;border:0;background:none;cursor:pointer;color:inherit;}
:focus-visible{outline:2px solid var(--main);outline-offset:2px;border-radius:6px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
}
.grid-container{max-width:var(--container);padding-left:20px;padding-right:20px;}
@media (min-width:640px){
  .container{padding:0 32px;}
  .grid-container{padding-left:32px;padding-right:32px;}
}
@media (min-width:1024px){
  .container{padding:0 40px;}
  .grid-container{padding-left:40px;padding-right:40px;}
}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:200;
  padding:16px 20px 0;
  pointer-events:none;
}
.nav-shell{
  pointer-events:auto;
  max-width:var(--container);
  margin:0 auto;
  height:60px;
  display:flex;
  align-items:center;
  gap:24px;
  padding:0 12px 0 18px;
  border-radius:var(--r-pill);
  background:rgba(10,17,29,.72);
  border:1px solid var(--line-2);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  box-shadow:0 10px 26px rgba(0,0,0,.32);
  transition:height .18s ease-out,background-color .18s ease-out,box-shadow .18s ease-out;
}
.site-header.is-scrolled .nav-shell{
  height:52px;
  background:rgba(10,17,29,.92);
  box-shadow:0 14px 34px rgba(0,0,0,.5);
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--text);
  font-weight:700;
  letter-spacing:.01em;
  font-size:17px;
}
.brand:hover{color:var(--main);}
.brand-mark{
  width:32px;height:32px;
  display:grid;place-items:center;
  border-radius:10px;
  border:1px solid rgba(47,212,232,.4);
  background:rgba(47,212,232,.1);
  flex:0 0 auto;
}
.brand-mark svg{width:18px;height:18px;}
.brand-text{white-space:nowrap;}
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
  flex:1 1 auto;
  justify-content:center;
}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:15px;
  color:var(--text-2);
  border-radius:var(--r-pill);
  transition:color .16s ease-out,background-color .16s ease-out;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:2px;
  width:0;
  height:2px;
  border-radius:2px;
  background:var(--main);
  transform:translateX(-50%);
  transition:width .18s ease-out;
}
.nav-links a:hover,
.nav-links a:focus-visible{color:var(--main);background:rgba(47,212,232,.08);}
.nav-links a:hover::after,
.nav-links a:focus-visible::after{width:18px;}
.nav-links a.active{color:var(--main);}
.nav-links a.active::after{width:18px;}
.nav-cta{
  pointer-events:auto;
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:38px;
  padding:0 16px;
  border-radius:var(--r-pill);
  font-size:14px;
  font-weight:600;
  color:#05121A;
  background:linear-gradient(135deg,var(--main),var(--main-2));
  box-shadow:0 0 0 1px rgba(47,212,232,.55),0 8px 22px rgba(47,212,232,.28);
  transition:box-shadow .18s ease-out,transform .18s ease-out;
}
.nav-cta:hover{color:#05121A;box-shadow:0 0 0 1px rgba(47,212,232,.7),0 12px 32px rgba(47,212,232,.42);transform:translateY(-1px);}
.nav-cta:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(47,212,232,.6),0 6px 16px rgba(47,212,232,.3);}
.nav-toggle{
  display:none;
  margin-left:auto;
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid var(--line-2);
  background:rgba(47,212,232,.08);
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:4px;
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--main);
  transition:transform .18s ease-out,opacity .18s ease-out;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.nav-drawer{
  display:none;
  pointer-events:auto;
  max-width:var(--container);
  margin:10px auto 0;
  border-radius:20px;
  background:rgba(10,17,29,.96);
  border:1px solid var(--line-2);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  box-shadow:var(--shadow-strong);
  overflow:hidden;
}
.nav-drawer.is-open{display:block;}
.nav-drawer a{
  display:block;
  padding:16px 22px;
  font-size:17px;
  color:var(--text);
  border-bottom:1px solid var(--line);
}
.nav-drawer a:hover,.nav-drawer a:focus-visible{background:rgba(47,212,232,.08);color:var(--main);}
.nav-drawer a.active{color:var(--main);}
.nav-drawer .drawer-cta{
  display:block;
  margin:16px 22px 20px;
  text-align:center;
  padding:12px 18px;
  border-radius:var(--r-pill);
  font-weight:600;
  color:#05121A;
  background:linear-gradient(135deg,var(--main),var(--main-2));
  box-shadow:0 0 0 1px rgba(47,212,232,.5),0 10px 26px rgba(47,212,232,.3);
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .brand{font-size:16px;}
}
@media (max-width:520px){
  .brand-text{font-size:15px;}
  .site-header{padding:12px 12px 0;}
  .nav-shell{padding:0 10px 0 12px;}
}

/* ---------- 通用板块 ---------- */
.section{
  padding:64px 0;
  position:relative;
}
@media (min-width:1024px){
  .section{padding:96px 0;}
}
.section-head{
  max-width:760px;
  margin-bottom:40px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--main);
  background:rgba(47,212,232,.1);
  border:1px solid rgba(47,212,232,.28);
  border-radius:var(--r-pill);
  padding:5px 12px;
  margin-bottom:16px;
}
.eyebrow::before{
  content:"";
  width:6px;height:6px;
  border-radius:50%;
  background:var(--main);
  box-shadow:0 0 10px rgba(47,212,232,.9);
}
h2{
  font-size:24px;
  line-height:1.4;
  font-weight:700;
  letter-spacing:.01em;
}
@media (min-width:1024px){
  h2{font-size:30px;}
}
h3{
  font-size:17px;
  line-height:1.5;
  font-weight:600;
  letter-spacing:.01em;
}
@media (min-width:1024px){
  h3{font-size:19px;}
}
.section-sub{
  margin-top:12px;
  color:var(--text-2);
  font-size:15px;
  line-height:1.85;
  max-width:38em;
}
.divider-line{
  height:1px;
  border:0;
  background:linear-gradient(90deg,rgba(47,212,232,0),rgba(47,212,232,.4),rgba(47,212,232,0));
  margin:0;
}

/* ---------- 页面 Hero ---------- */
.page-hero{
  position:relative;
  padding:124px 0 52px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero .hero-bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  opacity:.42;
}
.page-hero .hero-grid{
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(47,212,232,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(47,212,232,.07) 1px,transparent 1px);
  background-size:32px 32px;
  opacity:.55;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(115deg,rgba(7,12,22,.96) 0%,rgba(7,12,22,.82) 48%,rgba(7,12,22,.55) 100%);
}
.hero-inner{
  position:relative;
  z-index:2;
}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:18px;
  flex-wrap:wrap;
}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--main);}
.breadcrumb span{color:var(--text-3);}
.breadcrumb .current{color:var(--text-2);}
.page-hero h1{
  font-size:30px;
  line-height:1.3;
  font-weight:700;
  letter-spacing:.01em;
  max-width:20em;
}
@media (min-width:1024px){
  .page-hero h1{font-size:44px;}
}
.hero-lead{
  margin-top:16px;
  color:var(--text-2);
  font-size:16px;
  max-width:36em;
}
.hero-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:24px;
}
.chip{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:var(--r-pill);
  font-size:12px;
  color:var(--text-2);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line-2);
}
.chip.amber{color:var(--amber);background:rgba(255,177,60,.1);border-color:rgba(255,177,60,.3);}
.chip.cyan{color:var(--main);background:rgba(47,212,232,.1);border-color:rgba(47,212,232,.3);}

/* ---------- 双列功能大卡 ---------- */
.feature-grid{margin-bottom:-24px;}
.feature-card{
  display:flex;
  flex-direction:column;
  height:100%;
  margin-bottom:24px;
  border-radius:var(--r-card);
  background:var(--panel);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  overflow:hidden;
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.feature-card:hover{
  transform:translateY(-4px);
  border-color:rgba(47,212,232,.3);
  box-shadow:var(--shadow-strong);
}
.feature-media{
  position:relative;
  width:100%;
  aspect-ratio:16/9;
  background:rgba(47,212,232,.12);
  overflow:hidden;
}
@supports not (aspect-ratio:16/9){
  .feature-media{height:0;padding-bottom:56.25%;}
  .feature-media img{position:absolute;inset:0;}
}
.feature-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  border-bottom:1px solid var(--line);
}
.feature-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(to top,rgba(7,12,22,.7),rgba(7,12,22,0) 60%);
  pointer-events:none;
}
.feature-body{
  padding:22px 24px 26px;
  display:flex;
  flex-direction:column;
  gap:12px;
  flex:1 1 auto;
}
.feature-body h3{color:var(--text);}
.feature-body p{color:var(--text-2);font-size:15px;}
.badge{
  display:inline-flex;
  align-items:center;
  align-self:flex-start;
  height:24px;
  padding:0 10px;
  border-radius:var(--r-pill);
  font-size:12px;
  color:var(--main);
  background:rgba(47,212,232,.12);
  border:1px solid rgba(47,212,232,.26);
}
.badge.amber{color:var(--amber);background:rgba(255,177,60,.12);border-color:rgba(255,177,60,.3);}
.badge.violet{color:#B7A6FF;background:rgba(124,92,255,.16);border-color:rgba(124,92,255,.32);}
.tick-list{display:flex;flex-direction:column;gap:8px;margin-top:4px;}
.tick-list li{
  position:relative;
  padding-left:22px;
  font-size:14px;
  color:var(--text-2);
  line-height:1.7;
}
.tick-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:9px;
  width:10px;height:10px;
  border-radius:50%;
  border:1px solid rgba(47,212,232,.7);
  background:rgba(47,212,232,.18);
}

/* ---------- 功能对照表 ---------- */
.table-band{
  background:var(--bg-2);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.table-wrap{
  width:100%;
  overflow-x:auto;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--panel);
  box-shadow:var(--shadow);
  -webkit-overflow-scrolling:touch;
}
table.compare-table{
  width:100%;
  min-width:720px;
  border-collapse:collapse;
  font-size:14px;
  margin:0;
  background:transparent;
  border:0;
}
table.compare-table thead th{
  background:rgba(47,212,232,.14);
  color:var(--text);
  font-weight:600;
  text-align:left;
  padding:16px 18px;
  font-size:14px;
  border-bottom:1px solid rgba(47,212,232,.28);
  white-space:nowrap;
}
table.compare-table tbody td{
  padding:16px 18px;
  color:var(--text-2);
  border-bottom:1px solid var(--line);
  vertical-align:top;
  line-height:1.75;
}
table.compare-table tbody tr:last-child td{border-bottom:0;}
table.compare-table tbody tr:nth-child(even){background:rgba(255,255,255,.02);}
table.compare-table tbody tr:hover{background:rgba(47,212,232,.06);}
table.compare-table tbody td:first-child{
  font-weight:600;
  color:var(--text);
  white-space:nowrap;
}
.table-note{
  margin-top:16px;
  font-size:13px;
  color:var(--text-3);
}
.table-scroll-hint{
  display:none;
  margin-top:12px;
  font-size:12px;
  color:var(--text-3);
}
@media (max-width:1023px){
  .table-scroll-hint{display:block;}
}

/* ---------- 使用顺序 ---------- */
.flow-list{
  display:grid;
  grid-template-columns:1fr;
  gap:20px;
}
@media (min-width:768px){
  .flow-list{grid-template-columns:repeat(3,1fr);}
}
.flow-item{
  position:relative;
  padding:26px 24px 24px;
  border-radius:var(--r-card);
  background:var(--panel);
  border:1px solid var(--line);
  border-left:3px solid rgba(47,212,232,.55);
  box-shadow:var(--shadow);
  transition:transform .18s ease-out,border-color .18s ease-out;
}
.flow-item:hover{transform:translateY(-4px);border-color:rgba(47,212,232,.3);border-left-color:var(--main);}
.flow-num{
  font-family:var(--mono);
  font-size:13px;
  font-weight:600;
  color:var(--amber);
  letter-spacing:.08em;
  display:block;
  margin-bottom:10px;
}
.flow-item h3{margin-bottom:10px;}
.flow-item p{font-size:14px;color:var(--text-2);}

/* ---------- FAQ ---------- */
.faq-list{
  display:flex;
  flex-direction:column;
  gap:12px;
  max-width:880px;
}
details.faq-item{
  border-radius:var(--r-img);
  background:var(--panel);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  overflow:hidden;
  transition:border-color .18s ease-out;
}
details.faq-item[open]{border-color:rgba(47,212,232,.3);}
details.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:18px 20px;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  transition:color .16s ease-out;
}
details.faq-item summary::-webkit-details-marker{display:none;}
details.faq-item summary:hover{color:var(--main);}
.faq-icon{
  flex:0 0 auto;
  width:28px;height:28px;
  border-radius:50%;
  border:1px solid rgba(47,212,232,.4);
  background:rgba(47,212,232,.1);
  display:grid;
  place-items:center;
  transition:transform .18s ease-out,background-color .18s ease-out;
}
.faq-icon::before{
  content:"";
  width:8px;height:8px;
  border-right:2px solid var(--main);
  border-bottom:2px solid var(--main);
  transform:rotate(45deg) translate(-1px,-1px);
}
details.faq-item[open] .faq-icon{transform:rotate(180deg);background:rgba(47,212,232,.2);}
.faq-answer{
  padding:16px 20px 20px;
  border-top:1px solid var(--line);
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;
  padding:64px 0;
  overflow:hidden;
  border-top:1px solid var(--line);
}
.cta-band .cta-bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  opacity:.3;
}
.cta-band::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(120deg,rgba(7,12,22,.95),rgba(7,12,22,.7));
}
.cta-inner{
  position:relative;
  z-index:2;
  display:flex;
  flex-direction:column;
  gap:24px;
  align-items:flex-start;
  padding:32px 28px;
  border-radius:var(--r-card);
  background:rgba(14,23,40,.62);
  border:1px solid rgba(255,255,255,.1);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-strong);
}
@media (min-width:900px){
  .cta-band{padding:96px 0;}
  .cta-inner{
    flex-direction:row;
    align-items:center;
    justify-content:space-between;
    padding:40px 44px;
  }
}
.cta-inner h2{margin-bottom:8px;}
.cta-inner p{color:var(--text-2);font-size:15px;max-width:34em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;width:100%;}
@media (min-width:900px){
  .cta-actions{width:auto;flex:0 0 auto;}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  transition:box-shadow .18s ease-out,transform .18s ease-out,background-color .18s ease-out,color .18s ease-out,background-position .3s ease-out;
  white-space:nowrap;
}
.btn .arrow{transition:transform .18s ease-out;}
.btn:hover .arrow{transform:translateX(4px);}
.btn-primary{
  color:#05121A;
  background:linear-gradient(135deg,var(--main),var(--main-2));
  background-size:160% 100%;
  box-shadow:0 0 0 1px rgba(47,212,232,.55),0 10px 28px rgba(47,212,232,.3);
}
.btn-primary:hover{
  color:#05121A;
  background-position:100% 0;
  box-shadow:0 0 0 1px rgba(47,212,232,.7),0 12px 36px rgba(47,212,232,.44);
  transform:translateY(-1px);
}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(47,212,232,.55),0 6px 16px rgba(47,212,232,.28);}
.btn-ghost{
  color:var(--main);
  background:transparent;
  border:1px solid rgba(47,212,232,.5);
}
.btn-ghost:hover{
  color:var(--main);
  background:rgba(47,212,232,.1);
  border-color:rgba(47,212,232,.8);
}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
@media (max-width:520px){
  .btn{width:100%;}
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#050A12;
  border-top:1px solid transparent;
  border-image:linear-gradient(90deg,rgba(47,212,232,0),rgba(47,212,232,.45),rgba(47,212,232,0)) 1;
  padding:56px 0 0;
  margin-top:0;
}
.footer-col{margin-bottom:32px;}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:14px;
}
.footer-brand .brand-mark{width:30px;height:30px;}
.footer-brand .brand-text{
  font-size:16px;
  font-weight:700;
  color:var(--text);
  white-space:nowrap;
}
.footer-desc{
  font-size:14px;
  color:var(--text-3);
  line-height:1.8;
  max-width:24em;
}
.footer-title{
  font-size:14px;
  font-weight:600;
  color:var(--text);
  margin-bottom:14px;
  letter-spacing:.02em;
}
.footer-links{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.footer-links a{
  font-size:14px;
  color:var(--text-2);
  transition:color .16s ease-out,transform .16s ease-out;
  display:inline-block;
}
.footer-links a:hover,.footer-links a:focus-visible{color:var(--main);transform:translateX(2px);}
.footer-info{
  display:flex;
  flex-direction:column;
  gap:10px;
  font-size:14px;
  color:var(--text-2);
}
.footer-info strong{color:var(--text-3);font-weight:600;}
.footer-bottom{
  margin-top:16px;
  padding:20px 0 26px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  font-size:12px;
  color:var(--text-3);
}
.footer-bottom .kws{letter-spacing:.04em;}

/* ---------- 进场动效 ---------- */
.reveal-up{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .5s ease-out,transform .5s ease-out;
}
.reveal-up.is-visible{opacity:1;transform:translateY(0);}
@media (prefers-reduced-motion:reduce){
  .reveal-up{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
  *{transition-duration:.001ms !important;animation-duration:.001ms !important;}
}

/* roulang page: category3 */
:root{
  --bg:#070C16;
  --bg-2:#0B1220;
  --panel:#0E1728;
  --primary:#2FD4E8;
  --primary-deep:#1E8BFF;
  --amber:#FFB13C;
  --violet:#7C5CFF;
  --success:#3ED598;
  --danger:#FF6B6B;
  --text:#E8EEF7;
  --text-2:#A9B6CB;
  --text-3:#6F7F99;
  --border:rgba(255,255,255,.07);
  --border-strong:rgba(255,255,255,.12);
  --radius-card:20px;
  --radius-img:16px;
  --radius-input:12px;
  --radius-btn:14px;
  --shadow-card:0 12px 30px rgba(0,0,0,.35);
  --shadow-hover:0 18px 42px rgba(0,0,0,.48);
  --glow:0 0 0 1px rgba(47,212,232,.55),0 10px 28px rgba(47,212,232,.30);
  --glow-hover:0 0 0 1px rgba(47,212,232,.75),0 14px 36px rgba(47,212,232,.42);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .16s var(--ease);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
  border-radius:6px;
}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;cursor:pointer;}
::selection{background:rgba(47,212,232,.28);color:#fff;}

/* ===== 容器 ===== */
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:640px){.container{padding-left:32px;padding-right:32px;}}
@media (min-width:1024px){.container{padding-left:40px;padding-right:40px;}}
@media (min-width:1440px){.container{max-width:1320px;}}

/* ===== 头部悬浮胶囊导航 ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  padding:16px 0 0;
  pointer-events:none;
}
.nav-shell{
  pointer-events:auto;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
  display:flex;
  align-items:center;
  gap:20px;
  height:60px;
  border-radius:999px;
  background:rgba(10,17,29,.72);
  border:1px solid var(--border-strong);
  backdrop-filter:blur(12px) saturate(140%);
  -webkit-backdrop-filter:blur(12px) saturate(140%);
  box-shadow:0 10px 30px rgba(0,0,0,.30);
  transition:height .18s var(--ease),background .18s var(--ease),box-shadow .18s var(--ease);
}
.site-header.is-scrolled .nav-shell{
  height:52px;
  background:rgba(10,17,29,.92);
  box-shadow:0 14px 36px rgba(0,0,0,.48);
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  font-weight:700;
  font-size:16px;
  color:var(--text);
  white-space:nowrap;
}
.brand:hover{color:var(--primary);}
.brand-mark{
  width:32px;height:32px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:rgba(47,212,232,.10);
  border:1px solid rgba(47,212,232,.30);
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{letter-spacing:.02em;}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:auto;
  flex-wrap:nowrap;
}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:15px;
  color:var(--text-2);
  border-radius:999px;
  white-space:nowrap;
  transition:color .16s var(--ease),background .16s var(--ease);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:50%;bottom:2px;
  width:0;height:2px;
  border-radius:2px;
  background:var(--primary);
  transform:translateX(-50%);
  transition:width .18s var(--ease);
}
.nav-links a:hover{color:var(--primary);background:rgba(47,212,232,.06);}
.nav-links a:hover::after{width:18px;}
.nav-links a.active{color:var(--primary);}
.nav-links a.active::after{width:18px;}
.nav-cta{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:38px;
  padding:0 18px;
  font-size:14px;
  font-weight:600;
  color:#05121A;
  border-radius:999px;
  background:linear-gradient(120deg,var(--primary),var(--primary-deep));
  box-shadow:var(--glow);
  transition:box-shadow .18s var(--ease),transform .18s var(--ease);
}
.nav-cta:hover{box-shadow:var(--glow-hover);transform:translateY(-1px);color:#05121A;}
.nav-cta:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(47,212,232,.5),0 6px 16px rgba(47,212,232,.26);}
.nav-toggle{
  display:none;
  width:40px;height:40px;
  border-radius:12px;
  border:1px solid var(--border-strong);
  background:rgba(47,212,232,.06);
  color:var(--text);
  align-items:center;justify-content:center;
  margin-left:auto;
}
.nav-toggle span{
  display:block;width:18px;height:2px;border-radius:2px;background:var(--text);
  position:relative;transition:background .16s var(--ease);
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--text);
  transition:transform .18s var(--ease),top .18s var(--ease);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle.is-open span{background:transparent;}
.nav-toggle.is-open span::before{top:0;transform:rotate(45deg);}
.nav-toggle.is-open span::after{top:0;transform:rotate(-45deg);}
.mobile-drawer{
  pointer-events:auto;
  display:none;
  position:fixed;
  inset:0;
  z-index:110;
  background:rgba(7,12,22,.96);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  padding:96px 24px 32px;
  overflow-y:auto;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer a.drawer-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:18px 4px;
  font-size:19px;
  color:var(--text);
  border-bottom:1px solid var(--border);
}
.mobile-drawer a.drawer-link.active{color:var(--primary);}
.mobile-drawer .drawer-cta{
  margin-top:28px;
  display:flex;
  align-items:center;
  justify-content:center;
  height:50px;
  border-radius:var(--radius-btn);
  font-size:16px;
  font-weight:600;
  color:#05121A;
  background:linear-gradient(120deg,var(--primary),var(--primary-deep));
  box-shadow:var(--glow);
}
body.no-scroll{overflow:hidden;}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  font-size:15px;
  font-weight:600;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  transition:all .18s var(--ease);
  white-space:nowrap;
}
.btn .arrow{display:inline-block;transition:transform .18s var(--ease);}
.btn:hover .arrow{transform:translateX(4px);}
.btn-primary{
  color:#05121A;
  background:linear-gradient(120deg,var(--primary),var(--primary-deep));
  box-shadow:var(--glow);
}
.btn-primary:hover{box-shadow:var(--glow-hover);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(47,212,232,.5),0 6px 16px rgba(47,212,232,.26);}
.btn-outline{
  color:var(--primary);
  background:transparent;
  border-color:rgba(47,212,232,.5);
}
.btn-outline:hover{background:rgba(47,212,232,.10);border-color:var(--primary);transform:translateY(-1px);}
.btn-outline:active{transform:translateY(1px);}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  padding:8px 0;
}
.btn-ghost:hover{color:#7CE9F6;}
.btn-ghost:hover .arrow{transform:translateX(4px);}

/* ===== 页面窄幅 Hero ===== */
.page-hero{
  position:relative;
  margin-top:-76px;
  padding-top:132px;
  padding-bottom:52px;
  min-height:280px;
  display:flex;
  align-items:flex-end;
  overflow:hidden;
}
.page-hero .hero-bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  opacity:.55;
}
.page-hero .hero-bg::after{
  content:"";
  position:absolute;inset:0;
  background:
    linear-gradient(120deg,rgba(7,12,22,.96) 0%,rgba(7,12,22,.62) 48%,rgba(7,12,22,.40) 100%),
    repeating-linear-gradient(0deg,rgba(255,255,255,.028) 0 1px,transparent 1px 32px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.028) 0 1px,transparent 1px 32px);
}
.hero-inner{position:relative;z-index:2;}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:16px;
  flex-wrap:wrap;
}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{opacity:.6;}
.breadcrumb .current{color:var(--text-2);}
.page-hero h1{
  font-size:44px;
  line-height:1.24;
  font-weight:700;
  letter-spacing:.01em;
  margin-bottom:14px;
}
.page-hero h1 .accent{
  display:inline-block;
  width:10px;height:26px;
  margin-right:14px;
  background:var(--amber);
  transform:skewX(-18deg);
  border-radius:2px;
  vertical-align:middle;
}
.hero-sub{
  font-size:16px;
  color:var(--text-2);
  max-width:640px;
}

/* ===== 快速定位条 ===== */
.jump-section{padding:28px 0 8px;}
.jump-bar{
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
  padding:14px 18px;
  border-radius:999px;
  background:var(--bg-2);
  border:1px solid var(--border);
}
.jump-label{
  font-size:13px;
  color:var(--text-3);
  margin-right:4px;
  letter-spacing:.04em;
}
.jump-pill{
  display:inline-flex;
  align-items:center;
  height:32px;
  padding:0 16px;
  font-size:13px;
  border-radius:999px;
  color:var(--text-2);
  background:rgba(47,212,232,.08);
  border:1px solid rgba(47,212,232,.20);
  transition:all .16s var(--ease);
}
.jump-pill:hover{color:var(--primary);background:rgba(47,212,232,.16);border-color:rgba(47,212,232,.45);transform:translateY(-1px);}
.jump-meta{
  margin-left:auto;
  font-family:var(--mono);
  font-size:12px;
  font-weight:600;
  color:var(--text-3);
}

/* ===== FAQ 主体 ===== */
.faq-main{padding:44px 0 72px;}
.faq-group{margin-bottom:44px;}
.faq-group:last-child{margin-bottom:0;}
.group-head{
  display:flex;
  align-items:flex-start;
  gap:16px;
  margin-bottom:20px;
  padding-bottom:16px;
  border-bottom:1px solid transparent;
  border-image:linear-gradient(90deg,transparent,rgba(47,212,232,.35),transparent) 1;
}
.group-index{
  flex:0 0 auto;
  font-family:var(--mono);
  font-size:14px;
  font-weight:600;
  color:var(--bg);
  background:linear-gradient(120deg,var(--primary),var(--primary-deep));
  width:38px;height:38px;
  border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
}
.group-head h2{
  font-size:24px;
  font-weight:700;
  line-height:1.35;
  margin-bottom:4px;
}
.group-head p{font-size:14px;color:var(--text-3);}

/* Accordion 自定义皮肤 */
.faq-accordion{margin:0;}
.faq-accordion .accordion-item{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:16px;
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.faq-accordion .accordion-item:hover{
  border-color:rgba(47,212,232,.30);
  transform:translateY(-2px);
  box-shadow:var(--shadow-hover);
}
.faq-accordion .accordion-title{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:17px 20px;
  font-size:16px;
  font-weight:600;
  line-height:1.6;
  color:var(--text);
  border:0;
  background:transparent;
}
.faq-accordion .accordion-title::before,
.faq-accordion .accordion-title::after{content:none;display:none;}
.faq-accordion .accordion-title:hover{color:var(--primary);}
.faq-accordion .acc-chev{
  flex:0 0 auto;
  width:28px;height:28px;
  border-radius:999px;
  border:1px solid var(--border-strong);
  display:inline-flex;align-items:center;justify-content:center;
  transition:transform .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
  color:var(--text-3);
}
.faq-accordion .acc-chev svg{width:12px;height:12px;}
.faq-accordion .accordion-item.is-active{border-color:rgba(47,212,232,.35);}
.faq-accordion .accordion-item.is-active .accordion-title{color:var(--primary);}
.faq-accordion .accordion-item.is-active .acc-chev{
  transform:rotate(180deg);
  color:var(--primary);
  border-color:rgba(47,212,232,.55);
}
.faq-accordion .accordion-content{
  padding:16px 20px 20px;
  font-size:15px;
  line-height:1.9;
  color:var(--text-2);
  border-top:1px solid var(--border);
  background:transparent;
}
.faq-accordion .accordion-content p{margin:0;}

/* ===== 右侧说明卡 ===== */
.side-sticky{position:static;}
@media (min-width:1024px){
  .side-sticky{position:sticky;top:100px;}
}
.side-card{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.side-media{
  position:relative;
  aspect-ratio:16/9;
  background:linear-gradient(135deg,rgba(47,212,232,.18),rgba(124,92,255,.14));
}
.side-media img{
  width:100%;height:100%;object-fit:cover;
  border-bottom:1px solid var(--border);
}
.side-body{padding:22px 24px 26px;}
.side-title{
  font-size:19px;
  font-weight:700;
  margin-bottom:6px;
}
.side-note{font-size:13px;color:var(--text-3);margin-bottom:16px;}
.check-list li{
  position:relative;
  padding-left:24px;
  font-size:14px;
  line-height:1.85;
  color:var(--text-2);
  margin-bottom:12px;
}
.check-list li:last-child{margin-bottom:0;}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;top:9px;
  width:12px;height:12px;
  border-radius:4px;
  border:1px solid rgba(47,212,232,.55);
  background:rgba(47,212,232,.14);
}
.side-stats{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:10px;
  margin:22px 0 20px;
  padding:16px 0;
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}
.side-stats div{text-align:center;}
.side-stats .num{
  display:block;
  font-family:var(--mono);
  font-size:20px;
  font-weight:600;
  color:var(--amber);
  line-height:1.2;
}
.side-stats .lbl{
  display:block;
  font-size:12px;
  color:var(--text-3);
  margin-top:4px;
}

/* ===== 仍未解决 ===== */
.still-card{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
  margin-top:44px;
  padding:26px 28px;
  border-radius:var(--radius-card);
  background:var(--bg-2);
  border:1px solid var(--border);
  border-left:3px solid var(--amber);
}
.still-card h2{font-size:19px;font-weight:700;margin-bottom:6px;}
.still-card p{font-size:14px;color:var(--text-2);}

/* ===== 底部 CTA 带 ===== */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:24px;
  padding:46px 40px;
  margin-bottom:72px;
  background:rgba(14,23,40,.62);
  border:1px solid rgba(255,255,255,.10);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
}
.cta-band::before{
  content:"";
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;
  background-position:center;
  opacity:.20;
}
.cta-band::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(7,12,22,.92) 0%,rgba(7,12,22,.58) 60%,rgba(7,12,22,.30) 100%);
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{font-size:28px;font-weight:700;line-height:1.35;margin-bottom:8px;}
.cta-band p{font-size:15px;color:var(--text-2);max-width:520px;}

/* ===== 页脚 ===== */
.site-footer{
  position:relative;
  background:#050A12;
  padding:56px 0 24px;
  border-top:1px solid transparent;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(47,212,232,.45),transparent);
}
.footer-col{margin-bottom:28px;}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:12px;
}
.footer-brand .brand-mark{width:30px;height:30px;}
.footer-brand .brand-text{font-size:16px;font-weight:700;color:var(--text);}
.footer-desc{
  font-size:14px;
  line-height:1.85;
  color:var(--text-3);
  max-width:280px;
}
.footer-title{
  font-size:14px;
  font-weight:600;
  color:var(--text);
  margin-bottom:14px;
  letter-spacing:.02em;
}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{
  font-size:14px;
  color:var(--text-3);
  width:fit-content;
  transition:color .16s var(--ease),transform .16s var(--ease);
}
.footer-links a:hover{color:var(--primary);transform:translateX(2px);}
.footer-info{display:flex;flex-direction:column;gap:10px;}
.footer-info span{font-size:14px;color:var(--text-3);line-height:1.7;}
.footer-info strong{color:var(--text-2);font-weight:600;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  margin-top:24px;
  padding-top:20px;
  border-top:1px solid var(--border);
  font-size:12px;
  color:var(--text-3);
}
.footer-bottom .kws{color:rgba(111,127,153,.85);letter-spacing:.06em;}

/* ===== 进场动画 ===== */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
  *{animation:none !important;}
}

/* ===== 响应式 ===== */
@media (max-width:1023px){
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-shell{padding:0 16px;gap:12px;}
  .brand{font-size:15px;}
  .brand-text{max-width:150px;overflow:hidden;text-overflow:ellipsis;}
  .page-hero h1{font-size:34px;}
  .cta-band h2{font-size:24px;}
}
@media (max-width:767px){
  .page-hero{padding-top:118px;padding-bottom:40px;min-height:240px;margin-top:-72px;}
  .page-hero h1{font-size:28px;}
  .hero-sub{font-size:15px;}
  .group-head h2{font-size:21px;}
  .faq-accordion .accordion-title{font-size:15px;padding:15px 16px;}
  .faq-accordion .accordion-content{padding:14px 16px 18px;}
  .side-body{padding:20px;}
  .still-card{padding:22px;}
  .still-card .btn{width:100%;}
  .cta-band{padding:32px 22px;border-radius:20px;margin-bottom:56px;}
  .cta-band h2{font-size:21px;}
  .cta-band .btn{width:100%;}
  .jump-meta{margin-left:0;width:100%;}
}
@media (max-width:520px){
  body{font-size:15px;}
  .page-hero h1{font-size:24px;}
  .page-hero h1 .accent{height:20px;width:8px;margin-right:10px;}
  .brand-text{font-size:14px;max-width:118px;}
  .jump-bar{border-radius:20px;padding:14px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .side-stats .num{font-size:17px;}
}

/* roulang page: category4 */
:root{
  --bg:#070C16;
  --bg-2:#0B1220;
  --panel:#0E1728;
  --cyan:#2FD4E8;
  --blue:#1E8BFF;
  --gold:#FFB13C;
  --violet:#7C5CFF;
  --text:#E8EEF7;
  --text-2:#A9B6CB;
  --muted:#6F7F99;
  --line:rgba(255,255,255,.07);
  --line-strong:rgba(255,255,255,.12);
  --ok:#3ED598;
  --warn:#FFB13C;
  --err:#FF6B6B;
  --r-card:20px;
  --r-img:16px;
  --r-btn:14px;
  --r-pill:999px;
  --shadow:0 12px 30px rgba(0,0,0,.35);
  --shadow-lg:0 22px 48px rgba(0,0,0,.5);
  --glow:0 0 0 1px rgba(47,212,232,.55), 0 10px 28px rgba(47,212,232,.30);
  --font: "PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono: ui-monospace,Menlo,Consolas,"Courier New",monospace;
  --w:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.nav-open{overflow:hidden;}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--cyan);text-decoration:none;transition:color .18s ease-out,opacity .18s ease-out;}
a:hover{color:#7CE9F5;}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;letter-spacing:.01em;line-height:1.35;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:2px;
  border-radius:6px;
}
::selection{background:rgba(47,212,232,.28);color:#fff;}

/* ---------- 容器 ---------- */
.container{
  width:100%;
  max-width:var(--w);
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:640px){.container{padding-left:32px;padding-right:32px;}}
@media (min-width:1024px){.container{padding-left:40px;padding-right:40px;}}

/* 覆盖 Foundation 默认观感 */
body,.grid-container,.grid-x,.cell{background-color:transparent;}
.button,.button.primary,.button.secondary{background:transparent;color:inherit;padding:0;margin:0;font-family:inherit;}

/* ---------- 悬浮胶囊导航 ---------- */
.site-head{
  position:sticky;
  top:0;
  z-index:90;
  padding:16px 0;
  transition:padding .2s ease-out;
}
.site-head.scrolled{padding:8px 0;}
.nav-shell{width:100%;max-width:var(--w);margin:0 auto;padding:0 20px;}
@media (min-width:640px){.nav-shell{padding:0 32px;}}
@media (min-width:1024px){.nav-shell{padding:0 40px;}}
.nav-bar{
  display:flex;
  align-items:center;
  gap:18px;
  height:60px;
  padding:0 12px 0 18px;
  border-radius:var(--r-pill);
  background:rgba(10,17,29,.72);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid rgba(255,255,255,.09);
  box-shadow:0 10px 30px rgba(0,0,0,.28);
  transition:height .2s ease-out,background-color .2s ease-out,box-shadow .2s ease-out;
}
.site-head.scrolled .nav-bar{
  height:52px;
  background:rgba(10,17,29,.92);
  box-shadow:0 16px 36px rgba(0,0,0,.45);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  color:var(--text);
}
.brand:hover{color:var(--text);}
.brand-mark{
  width:34px;height:34px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:11px;
  background:rgba(47,212,232,.10);
  border:1px solid rgba(47,212,232,.30);
  flex-shrink:0;
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{
  font-size:16px;
  font-weight:700;
  letter-spacing:.02em;
  white-space:nowrap;
}
.brand-short{display:none;}
@media (max-width:1023px){
  .brand-text{display:none;}
  .brand-short{display:inline;font-size:15px;font-weight:700;white-space:nowrap;}
}
.nav-links{
  display:none;
  align-items:center;
  gap:6px;
  margin:0 0 0 auto;
}
@media (min-width:1024px){.nav-links{display:flex;}}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:15px;
  color:var(--text-2);
  border-radius:var(--r-pill);
  transition:color .16s ease-out,background-color .16s ease-out;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:3px;
  height:2px;
  border-radius:2px;
  background:var(--cyan);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .18s ease-out;
}
.nav-links a:hover{color:var(--cyan);background:rgba(47,212,232,.07);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a:active{color:#8FF0F9;}
.nav-links a.active{color:var(--text);font-weight:600;}
.nav-links a.active::after{transform:scaleX(1);}
.nav-cta{
  display:none;
  align-items:center;
  gap:6px;
  height:38px;
  padding:0 18px;
  border-radius:var(--r-pill);
  font-size:14px;
  font-weight:600;
  color:#05121A;
  background:linear-gradient(135deg,var(--cyan),var(--blue));
  box-shadow:var(--glow);
  white-space:nowrap;
  transition:box-shadow .18s ease-out,transform .18s ease-out;
}
@media (min-width:1024px){.nav-cta{display:inline-flex;margin-left:8px;}}
.nav-cta:hover{color:#05121A;box-shadow:0 0 0 1px rgba(47,212,232,.7),0 14px 36px rgba(47,212,232,.42);}
.nav-cta:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(47,212,232,.5),0 6px 16px rgba(47,212,232,.28);}
.nav-toggle{
  margin-left:auto;
  width:42px;height:42px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.04);
  color:var(--text);
  transition:background-color .16s ease-out,border-color .16s ease-out;
}
.nav-toggle:hover{background:rgba(47,212,232,.12);border-color:rgba(47,212,232,.4);}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;background:currentColor;border-radius:2px;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;transition:transform .18s ease-out;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
@media (min-width:1024px){.nav-toggle{display:none;}}

/* 移动抽屉 */
.nav-drawer{
  position:fixed;
  inset:0;
  z-index:120;
  display:flex;
  flex-direction:column;
  padding:22px 22px 32px;
  background:rgba(7,12,22,.96);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  opacity:0;
  visibility:hidden;
  transform:translateY(-8px);
  transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s;
}
.nav-drawer.open{opacity:1;visibility:visible;transform:translateY(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{
  width:42px;height:42px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.12);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:20px;color:var(--text-2);
}
.drawer-close:hover{color:var(--cyan);border-color:rgba(47,212,232,.4);}
.drawer-links{display:flex;flex-direction:column;}
.drawer-links a{
  padding:18px 4px;
  font-size:20px;
  color:var(--text);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.drawer-links a:hover,.drawer-links a.active{color:var(--cyan);}
.drawer-cta{
  margin-top:auto;
  display:flex;align-items:center;justify-content:center;
  height:50px;border-radius:var(--r-btn);
  font-size:16px;font-weight:700;color:#05121A;
  background:linear-gradient(135deg,var(--cyan),var(--blue));
  box-shadow:var(--glow);
}
.drawer-cta:hover{color:#05121A;}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  margin-top:-92px;
  padding:150px 0 46px;
  min-height:280px;
  display:flex;
  align-items:flex-end;
  background-image:
    linear-gradient(105deg,rgba(7,12,22,.96) 8%,rgba(7,12,22,.72) 52%,rgba(7,12,22,.38) 100%),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  background-repeat:no-repeat;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:32px 32px;
  pointer-events:none;
  mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),transparent 92%);
  -webkit-mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),transparent 92%);
}
.page-hero .container{position:relative;z-index:2;}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);margin-bottom:16px;
}
.crumbs a{color:var(--text-2);}
.crumbs a:hover{color:var(--cyan);}
.crumbs .sep{color:rgba(255,255,255,.22);}
.crumbs .current{color:var(--text-2);}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  height:26px;padding:0 12px;margin-bottom:16px;
  border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.04em;
  color:var(--cyan);
  background:rgba(47,212,232,.12);
  border:1px solid rgba(47,212,232,.28);
}
.hero-badge i{width:6px;height:6px;border-radius:50%;background:var(--cyan);display:block;box-shadow:0 0 0 3px rgba(47,212,232,.18);}
.page-hero h1{
  position:relative;
  font-size:30px;
  line-height:1.3;
  padding-left:16px;
  margin-bottom:14px;
}
.page-hero h1::before{
  content:"";
  position:absolute;left:0;top:6px;bottom:6px;width:3px;
  background:linear-gradient(180deg,var(--cyan),rgba(47,212,232,0));
  border-radius:2px;
}
@media (min-width:768px){.page-hero h1{font-size:38px;}}
@media (min-width:1024px){.page-hero h1{font-size:44px;}}
.page-hero .lead{
  max-width:640px;
  margin:0;
  font-size:15px;
  line-height:1.8;
  color:var(--text-2);
}
@media (min-width:768px){.page-hero .lead{font-size:16px;}}

/* ---------- 通用板块 ---------- */
.section{padding:56px 0;}
@media (min-width:1024px){.section{padding:88px 0;}}
.section-head{margin-bottom:32px;max-width:720px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;color:var(--gold);
  margin-bottom:12px;
}
.eyebrow::before{content:"";width:14px;height:3px;border-radius:2px;background:var(--gold);transform:skewX(-24deg);}
.section-title{font-size:24px;line-height:1.4;}
@media (min-width:1024px){.section-title{font-size:30px;}}
.section-sub{margin-top:12px;color:var(--text-2);font-size:15px;}
.rule{
  height:1px;border:0;margin:0;
  background:linear-gradient(90deg,transparent,rgba(47,212,232,.35),transparent);
}

/* ---------- 速览数据条 ---------- */
.stat-strip{margin-top:-38px;position:relative;z-index:5;}
.stat-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:12px;
  padding:16px;
  border-radius:var(--r-card);
  background:rgba(14,23,40,.72);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border:1px solid rgba(255,255,255,.10);
  box-shadow:var(--shadow);
}
@media (min-width:640px){.stat-grid{grid-template-columns:repeat(3,1fr);gap:0;padding:8px 0;}}
.stat-item{
  padding:12px 20px;
  display:flex;flex-direction:column;gap:4px;
}
@media (min-width:640px){
  .stat-item + .stat-item{border-left:1px solid rgba(255,255,255,.08);}
}
.stat-num{
  font-family:var(--mono);
  font-size:22px;
  font-weight:600;
  color:var(--text);
  letter-spacing:.02em;
}
.stat-num em{font-style:normal;color:var(--cyan);}
.stat-label{font-size:12px;color:var(--muted);letter-spacing:.04em;}

/* ---------- 筛选标签 ---------- */
.filter-bar{
  display:flex;flex-wrap:wrap;gap:10px;
  margin-bottom:26px;
}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  height:34px;padding:0 16px;
  border-radius:var(--r-pill);
  font-size:14px;
  color:var(--text-2);
  background:rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.10);
  transition:all .16s ease-out;
}
.chip:hover{color:var(--cyan);border-color:rgba(47,212,232,.42);background:rgba(47,212,232,.08);}
.chip.on{
  color:#05121A;
  font-weight:600;
  background:linear-gradient(135deg,var(--cyan),var(--blue));
  border-color:transparent;
  box-shadow:0 8px 22px rgba(47,212,232,.26);
}
.chip .count{
  font-family:var(--mono);font-size:12px;opacity:.72;
}

/* ---------- 公告时间线 ---------- */
.timeline{
  border-radius:var(--r-card);
  background:var(--panel);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.news-row{
  display:flex;
  gap:16px;
  align-items:flex-start;
  padding:20px 18px;
  border-bottom:1px solid var(--line);
  color:inherit;
  position:relative;
  transition:background-color .18s ease-out,transform .18s ease-out;
}
.news-row:last-child{border-bottom:0;}
.news-row::before{
  content:"";
  position:absolute;left:0;top:0;bottom:0;width:3px;
  background:transparent;
  transition:background-color .18s ease-out;
}
.news-row:hover{background:rgba(47,212,232,.055);color:inherit;}
.news-row:hover::before{background:var(--cyan);}
.news-row:active{background:rgba(47,212,232,.09);}
@media (min-width:768px){
  .news-row{padding:24px 26px;gap:24px;}
}
.news-date{
  flex:0 0 auto;
  width:60px;
  padding:8px 0;
  border-radius:14px;
  text-align:center;
  background:rgba(47,212,232,.09);
  border:1px solid rgba(47,212,232,.22);
  font-family:var(--mono);
}
.news-date .mon{display:block;font-size:11px;color:var(--cyan);letter-spacing:.06em;}
.news-date .day{display:block;font-size:20px;font-weight:600;color:var(--text);line-height:1.2;}
.news-body{min-width:0;flex:1 1 auto;}
.news-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-bottom:8px;
}
.tag{
  display:inline-flex;align-items:center;
  height:24px;padding:0 10px;
  border-radius:var(--r-pill);
  font-size:12px;
  letter-spacing:.02em;
}
.tag-cyan{color:var(--cyan);background:rgba(47,212,232,.12);border:1px solid rgba(47,212,232,.22);}
.tag-gold{color:var(--gold);background:rgba(255,177,60,.12);border:1px solid rgba(255,177,60,.24);}
.tag-violet{color:#B9A8FF;background:rgba(124,92,255,.14);border:1px solid rgba(124,92,255,.26);}
.tag-mute{color:var(--text-2);background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.10);}
.news-meta .stamp{font-family:var(--mono);font-size:12px;color:var(--muted);}
.news-body h3{
  font-size:17px;
  line-height:1.5;
  margin-bottom:6px;
  transition:color .16s ease-out;
}
@media (min-width:768px){.news-body h3{font-size:19px;}}
.news-row:hover .news-body h3{color:var(--cyan);}
.news-body p{
  margin:0;
  font-size:14px;
  line-height:1.8;
  color:var(--text-2);
  max-width:640px;
}
.news-go{
  display:none;
  align-self:center;
  flex:0 0 auto;
  font-size:13px;
  color:var(--muted);
  white-space:nowrap;
  transition:color .16s ease-out,transform .16s ease-out;
}
@media (min-width:1024px){.news-go{display:block;}}
.news-row:hover .news-go{color:var(--cyan);transform:translateX(4px);}

.timeline-foot{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  padding:18px 20px;
  border-top:1px solid var(--line);
  background:rgba(255,255,255,.015);
  font-size:13px;
  color:var(--muted);
}
.timeline-foot .ghost-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--cyan);
}
.timeline-foot .ghost-link:hover{gap:10px;}

/* ---------- 阅读提示（图文） ---------- */
.tips-wrap{
  display:grid;
  grid-template-columns:1fr;
  gap:24px;
  align-items:center;
}
@media (min-width:1024px){.tips-wrap{grid-template-columns:1.05fr .95fr;gap:48px;}}
.tips-media{
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow);
  background:linear-gradient(135deg,rgba(47,212,232,.14),rgba(124,92,255,.10));
  aspect-ratio:16/9;
}
.tips-media img{width:100%;height:100%;object-fit:cover;}
.tips-list{margin-top:20px;display:grid;gap:12px;}
.tips-list li{
  display:flex;gap:12px;
  padding:14px 16px;
  border-radius:14px;
  background:var(--bg-2);
  border:1px solid var(--line);
  font-size:14px;
  color:var(--text-2);
  line-height:1.75;
}
.tips-list .dot{
  flex:0 0 auto;
  width:22px;height:22px;margin-top:2px;
  border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:11px;font-weight:600;
  color:var(--cyan);
  background:rgba(47,212,232,.12);
  border:1px solid rgba(47,212,232,.26);
}
.tips-list b{color:var(--text);font-weight:600;}

/* ---------- CTA ---------- */
.cta-band{
  padding:56px 0;
}
@media (min-width:1024px){.cta-band{padding:80px 0;}}
.cta-card{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-card);
  padding:32px 24px;
  background:
    radial-gradient(120% 140% at 0% 0%,rgba(47,212,232,.18),rgba(7,12,22,0) 58%),
    rgba(14,23,40,.62);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border:1px solid rgba(255,255,255,.10);
  box-shadow:var(--shadow-lg);
  display:flex;
  flex-direction:column;
  gap:20px;
  align-items:flex-start;
}
@media (min-width:768px){
  .cta-card{flex-direction:row;align-items:center;justify-content:space-between;padding:40px 40px;gap:32px;}
}
.cta-card h2{font-size:22px;margin-bottom:8px;}
@media (min-width:1024px){.cta-card h2{font-size:26px;}}
.cta-card p{margin:0;color:var(--text-2);font-size:15px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:700;
  letter-spacing:.02em;
  white-space:nowrap;
  transition:box-shadow .18s ease-out,transform .18s ease-out,background-color .18s ease-out,border-color .18s ease-out,color .18s ease-out;
}
.btn-primary{
  color:#05121A;
  background:linear-gradient(135deg,var(--cyan),var(--blue));
  box-shadow:var(--glow);
}
.btn-primary:hover{color:#05121A;box-shadow:0 0 0 1px rgba(47,212,232,.7),0 16px 36px rgba(47,212,232,.42);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(47,212,232,.5),0 6px 16px rgba(47,212,232,.26);}
.btn-ghost{
  color:var(--cyan);
  background:transparent;
  border:1px solid rgba(47,212,232,.5);
}
.btn-ghost:hover{color:var(--cyan);background:rgba(47,212,232,.10);border-color:rgba(47,212,232,.75);}
.btn-ghost:active{transform:translateY(1px);}
.btn .arw{transition:transform .18s ease-out;}
.btn:hover .arw{transform:translateX(4px);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#05090F;
  border-top:1px solid transparent;
  background-image:linear-gradient(180deg,#05090F,#05090F),linear-gradient(90deg,transparent,rgba(47,212,232,.45),transparent);
  background-origin:border-box;
  background-clip:padding-box,border-box;
  padding:56px 0 0;
  margin-top:16px;
}
.footer-col{margin-bottom:28px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-text{display:inline;font-size:16px;font-weight:700;}
.footer-desc{font-size:14px;line-height:1.8;color:var(--muted);max-width:250px;margin:0;}
.footer-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:14px;letter-spacing:.04em;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:var(--text-2);display:inline-block;transition:color .16s ease-out,transform .16s ease-out;}
.footer-links a:hover{color:var(--cyan);transform:translateX(2px);}
.footer-info{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--text-2);}
.footer-info strong{color:var(--text);font-weight:600;}
.footer-bottom{
  margin-top:20px;
  padding:18px 0 24px;
  border-top:1px solid rgba(255,255,255,.07);
  display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
  font-size:12px;color:var(--muted);
}
.footer-bottom .kws{letter-spacing:.04em;}

/* ---------- 进场动效 ---------- */
.reveal-up{opacity:0;transform:translateY(12px);transition:opacity .5s ease-out,transform .5s ease-out;}
.reveal-up.in{opacity:1;transform:translateY(0);}
@media (prefers-reduced-motion:reduce){
  .reveal-up{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category5 */
:root{
  --bg:#070C16;
  --surface:#0B1220;
  --panel:#0E1728;
  --primary:#2FD4E8;
  --primary-deep:#1E8BFF;
  --gold:#FFB13C;
  --violet:#7C5CFF;
  --text:#E8EEF7;
  --muted:#A9B6CB;
  --dim:#6F7F99;
  --border:rgba(255,255,255,.07);
  --border-strong:rgba(255,255,255,.12);
  --radius-card:20px;
  --radius-img:16px;
  --radius-btn:14px;
  --radius-field:12px;
  --shadow-card:0 12px 30px rgba(0,0,0,.35);
  --shadow-soft:0 4px 16px rgba(0,0,0,.25);
  --glow:0 0 0 1px rgba(47,212,232,.55), 0 10px 28px rgba(47,212,232,.30);
  --glow-hover:0 0 0 1px rgba(47,212,232,.75), 0 14px 36px rgba(47,212,232,.42);
  --font-base:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:ui-monospace,Menlo,Consolas,"Courier New",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-base);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:inherit;text-decoration:none;transition:color .18s ease-out,opacity .18s ease-out;}
a:hover{color:var(--primary);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
  border-radius:6px;
}
img{max-width:100%;display:block;}
button{font-family:inherit;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:640px){ .container{padding-left:32px;padding-right:32px;} }
@media (min-width:1024px){ .container{max-width:1200px;padding-left:40px;padding-right:40px;} }
.num{font-family:var(--font-num);font-weight:600;letter-spacing:0;}

/* ============ 顶部悬浮胶囊导航 ============ */
.site-header{
  position:sticky;
  top:16px;
  z-index:80;
  padding:0 16px;
}
@media (min-width:1024px){ .site-header{padding:0 32px;} }
.nav-shell{
  max-width:1320px;
  margin:0 auto;
  height:60px;
  display:flex;
  align-items:center;
  gap:16px;
  padding:0 14px 0 16px;
  border-radius:999px;
  background:rgba(10,17,29,.72);
  border:1px solid var(--border-strong);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  box-shadow:0 8px 26px rgba(0,0,0,.32);
  transition:height .18s ease-out,background .18s ease-out,box-shadow .18s ease-out;
}
.site-header.is-scrolled .nav-shell{
  height:52px;
  background:rgba(10,17,29,.92);
  box-shadow:0 12px 34px rgba(0,0,0,.5);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  white-space:nowrap;
  color:var(--text);
}
.brand:hover{color:var(--text);}
.brand-mark{
  width:30px;height:30px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;
  border:1px solid rgba(47,212,232,.4);
  background:rgba(47,212,232,.1);
  flex:0 0 auto;
}
.brand-mark svg{width:18px;height:18px;display:block;}
.brand-text{
  font-size:16px;
  font-weight:700;
  letter-spacing:.02em;
}
@media (max-width:1023px){ .brand-text{font-size:14px;} }
.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
  margin-right:auto;
}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:15px;
  color:var(--muted);
  border-radius:999px;
  transition:color .18s ease-out,background .18s ease-out;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:2px;
  width:0;
  height:2px;
  border-radius:2px;
  background:var(--primary);
  transform:translateX(-50%);
  transition:width .18s ease-out;
}
.nav-links a:hover{color:var(--primary);background:rgba(47,212,232,.08);}
.nav-links a:hover::after{width:16px;}
.nav-links a.active{color:var(--primary);}
.nav-links a.active::after{width:16px;}
.nav-cta{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:38px;
  padding:0 18px;
  border-radius:999px;
  font-size:14px;
  font-weight:600;
  color:#05121A;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  box-shadow:var(--glow);
  transition:box-shadow .18s ease-out,transform .18s ease-out;
}
.nav-cta:hover{color:#05121A;box-shadow:var(--glow-hover);transform:translateY(-1px);}
.nav-cta:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(47,212,232,.5),0 4px 12px rgba(47,212,232,.24);}
.nav-toggle{
  display:none;
  width:40px;height:40px;
  align-items:center;justify-content:center;
  border-radius:12px;
  border:1px solid var(--border-strong);
  background:rgba(255,255,255,.04);
  color:var(--text);
  cursor:pointer;
  transition:background .18s ease-out,border-color .18s ease-out;
}
.nav-toggle:hover{background:rgba(47,212,232,.12);border-color:rgba(47,212,232,.45);}
.nav-toggle span{
  display:block;width:16px;height:2px;border-radius:2px;background:currentColor;position:relative;
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:16px;height:2px;border-radius:2px;background:currentColor;transition:transform .18s ease-out;
}
.nav-toggle span::before{top:-5px;}
.nav-toggle span::after{top:5px;}
@media (max-width:1023px){
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:inline-flex;margin-left:auto;}
}
.mobile-drawer{
  position:fixed;
  inset:0;
  z-index:90;
  padding:88px 24px 32px;
  background:rgba(7,12,22,.94);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  display:flex;
  flex-direction:column;
  gap:24px;
  overflow-y:auto;
}
.mobile-drawer[hidden]{display:none;}
.drawer-links{display:flex;flex-direction:column;}
.drawer-links a{
  padding:18px 4px;
  font-size:20px;
  font-weight:600;
  color:var(--text);
  border-bottom:1px solid var(--border);
}
.drawer-links a:hover,.drawer-links a.active{color:var(--primary);}
.drawer-close{
  position:absolute;
  top:20px;right:20px;
  width:44px;height:44px;
  border-radius:50%;
  border:1px solid var(--border-strong);
  background:rgba(255,255,255,.05);
  color:var(--text);
  font-size:20px;
  line-height:1;
  cursor:pointer;
}
.drawer-close:hover{background:rgba(47,212,232,.15);color:var(--primary);}

/* ============ 通用按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:box-shadow .18s ease-out,transform .18s ease-out,background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.btn svg{width:16px;height:16px;transition:transform .18s ease-out;}
.btn:hover svg{transform:translateX(4px);}
.btn-primary{
  color:#05121A;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  box-shadow:var(--glow);
}
.btn-primary:hover{color:#05121A;box-shadow:var(--glow-hover);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(47,212,232,.5),0 4px 12px rgba(47,212,232,.24);}
.btn-ghost{
  color:var(--primary);
  background:transparent;
  border-color:rgba(47,212,232,.5);
}
.btn-ghost:hover{color:var(--primary);background:rgba(47,212,232,.1);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-block{width:100%;}

/* ============ 内页窄幅 Hero ============ */
.page-hero{
  position:relative;
  margin-top:24px;
  min-height:250px;
  display:flex;
  align-items:center;
  border-radius:24px;
  overflow:hidden;
  background:#0B1220 url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  border:1px solid var(--border);
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background:
    linear-gradient(100deg,rgba(7,12,22,.95) 0%,rgba(7,12,22,.82) 45%,rgba(7,12,22,.5) 100%);
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:32px 32px;
  opacity:.7;
  pointer-events:none;
}
.page-hero .hero-inner{
  position:relative;
  z-index:2;
  padding:48px 32px;
  max-width:760px;
}
@media (min-width:1024px){ .page-hero .hero-inner{padding:56px 48px;} }
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--dim);
  margin-bottom:18px;
}
.crumbs a{color:var(--dim);}
.crumbs a:hover{color:var(--primary);}
.crumbs .sep{opacity:.6;}
.crumbs .current{color:var(--muted);}
.page-hero h1{
  font-size:30px;
  line-height:1.32;
  font-weight:700;
  letter-spacing:.01em;
}
@media (min-width:1024px){ .page-hero h1{font-size:40px;} }
.page-hero .hero-lead{
  margin-top:14px;
  font-size:15px;
  color:var(--muted);
  max-width:520px;
}
.hero-tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:22px;
}
.tag{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
}
.tag-cyan{color:var(--primary);background:rgba(47,212,232,.12);}
.tag-gold{color:var(--gold);background:rgba(255,177,60,.14);}
.tag-dim{color:var(--muted);background:rgba(255,255,255,.06);}
.tag-violet{color:#B9A9FF;background:rgba(124,92,255,.16);}

/* ============ 板块通用 ============ */
.section{
  padding:64px 0;
}
@media (min-width:1024px){ .section{padding:96px 0;} }
.section-head{
  max-width:720px;
  margin-bottom:36px;
}
.section-head h2{
  font-size:24px;
  line-height:1.4;
  font-weight:700;
}
@media (min-width:1024px){ .section-head h2{font-size:30px;} }
.section-head p{
  margin-top:12px;
  color:var(--muted);
  font-size:15px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--primary);
  margin-bottom:12px;
}
.eyebrow::before{
  content:"";
  width:10px;height:10px;
  background:var(--gold);
  transform:rotate(45deg);
  border-radius:2px;
}

/* ============ 表单 + 信息卡 ============ */
.support-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:24px;
}
@media (min-width:1024px){
  .support-grid{grid-template-columns:7fr 5fr;gap:28px;align-items:start;}
}
.panel-card{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  padding:24px;
}
@media (min-width:1024px){ .panel-card{padding:32px;} }
.panel-card h2{
  font-size:20px;
  font-weight:700;
  line-height:1.45;
}
@media (min-width:1024px){ .panel-card h2{font-size:22px;} }
.panel-card .panel-desc{
  margin-top:10px;
  color:var(--muted);
  font-size:14px;
  line-height:1.85;
}
.form-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:18px;
  margin-top:26px;
}
@media (min-width:640px){
  .form-grid{grid-template-columns:1fr 1fr;}
  .form-grid .full{grid-column:1 / -1;}
}
.field label{
  display:block;
  font-size:13px;
  color:var(--muted);
  margin-bottom:8px;
  font-weight:600;
}
.field .req{color:var(--gold);margin-left:2px;}
.field input,
.field select,
.field textarea{
  width:100%;
  font-family:inherit;
  font-size:15px;
  color:var(--text);
  background:var(--surface);
  border:1px solid rgba(255,255,255,.1);
  border-radius:var(--radius-field);
  padding:0 14px;
  height:48px;
  transition:border-color .18s ease-out,box-shadow .18s ease-out,background .18s ease-out;
}
.field textarea{
  height:auto;
  min-height:132px;
  padding:12px 14px;
  line-height:1.75;
  resize:vertical;
}
.field input::placeholder,
.field textarea::placeholder{color:rgba(169,182,203,.4);}
.field input:hover,
.field select:hover,
.field textarea:hover{border-color:rgba(255,255,255,.2);}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(47,212,232,.18);
  background:#0C1424;
}
.field select{
  appearance:none;
  -webkit-appearance:none;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8' fill='none' stroke='%232FD4E8' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'><path d='M1 1.5 6 6.5 11 1.5'/></svg>");
  background-repeat:no-repeat;
  background-position:right 16px center;
  background-size:12px 8px;
  padding-right:40px;
}
.form-actions{
  margin-top:24px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:16px;
}
@media (max-width:1023px){
  .form-actions .btn{width:100%;}
}
.form-note{
  font-size:13px;
  color:var(--dim);
  line-height:1.7;
}
.form-feedback{
  margin-top:16px;
  display:none;
  align-items:center;
  gap:10px;
  padding:12px 16px;
  border-radius:var(--radius-field);
  font-size:14px;
  background:rgba(62,213,152,.1);
  border:1px solid rgba(62,213,152,.35);
  color:#8FE9C3;
}
.form-feedback.is-on{display:flex;}

.info-card{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  padding:24px;
}
@media (min-width:1024px){ .info-card{padding:28px;} }
.info-card h2{
  font-size:20px;
  font-weight:700;
}
@media (min-width:1024px){ .info-card h2{font-size:22px;} }
.channel-list{
  margin-top:22px;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.channel{
  display:flex;
  gap:14px;
  padding:14px 16px;
  border-radius:var(--radius-img);
  background:rgba(255,255,255,.03);
  border:1px solid var(--border);
  transition:border-color .18s ease-out,background .18s ease-out,transform .18s ease-out;
}
.channel:hover{border-color:rgba(47,212,232,.3);background:rgba(47,212,232,.06);transform:translateY(-2px);}
.channel-icon{
  flex:0 0 auto;
  width:36px;height:36px;
  display:flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:rgba(47,212,232,.12);
  color:var(--primary);
}
.channel-icon svg{width:18px;height:18px;}
.channel-body h3{
  font-size:15px;
  font-weight:600;
  line-height:1.5;
}
.channel-body p{
  margin-top:4px;
  font-size:13.5px;
  color:var(--muted);
  line-height:1.7;
}
.channel-body .mail{
  font-family:var(--font-num);
  font-size:13px;
  color:var(--primary);
  word-break:break-all;
}
.biz-hours{
  margin-top:20px;
  padding:16px;
  border-radius:var(--radius-img);
  background:rgba(255,177,60,.08);
  border:1px solid rgba(255,177,60,.28);
}
.biz-hours .label{
  font-size:12px;
  letter-spacing:.06em;
  color:var(--gold);
  font-weight:600;
}
.biz-hours .value{
  margin-top:6px;
  font-family:var(--font-num);
  font-size:17px;
  font-weight:600;
  color:var(--text);
}
.biz-hours .sub{
  margin-top:4px;
  font-size:13px;
  color:var(--muted);
}
.qr-box{
  margin-top:20px;
  display:flex;
  align-items:center;
  gap:16px;
  padding:16px;
  border-radius:var(--radius-img);
  background:rgba(255,255,255,.03);
  border:1px dashed rgba(255,255,255,.16);
}
.qr-placeholder{
  flex:0 0 auto;
  width:76px;height:76px;
  border-radius:12px;
  border:2px solid rgba(47,212,232,.45);
  background:
    repeating-linear-gradient(45deg,rgba(47,212,232,.16) 0 6px,transparent 6px 12px),
    rgba(47,212,232,.08);
  display:flex;align-items:center;justify-content:center;
  color:var(--primary);
  font-size:12px;
  font-weight:600;
  letter-spacing:.05em;
}
.qr-text strong{
  display:block;
  font-size:14px;
  font-weight:600;
  color:var(--text);
}
.qr-text span{
  display:block;
  margin-top:4px;
  font-size:13px;
  color:var(--dim);
  line-height:1.6;
}

/* ============ 自查清单 ============ */
.selfcheck{
  display:grid;
  grid-template-columns:1fr;
  gap:24px;
}
@media (min-width:1024px){
  .selfcheck{grid-template-columns:5fr 7fr;gap:32px;align-items:center;}
}
.figure-card{
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--border-strong);
  box-shadow:var(--shadow-card);
  background:linear-gradient(150deg,rgba(47,212,232,.16),rgba(11,18,32,.9) 60%);
  aspect-ratio:4 / 3;
}
.figure-card img{
  width:100%;height:100%;
  object-fit:cover;
  border-radius:var(--radius-card);
}
.check-list{
  display:flex;
  flex-direction:column;
  gap:12px;
  margin-top:24px;
}
.check-item{
  display:flex;
  gap:14px;
  padding:16px 18px;
  border-radius:var(--radius-img);
  background:var(--panel);
  border:1px solid var(--border);
  box-shadow:var(--shadow-soft);
  transition:border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.check-item:hover{
  border-color:rgba(47,212,232,.3);
  transform:translateY(-3px);
  box-shadow:0 16px 34px rgba(0,0,0,.42);
}
.check-num{
  flex:0 0 auto;
  width:32px;height:32px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  background:rgba(47,212,232,.14);
  color:var(--primary);
  font-family:var(--font-num);
  font-size:13px;
  font-weight:600;
}
.check-item h3{
  font-size:16px;
  font-weight:600;
  line-height:1.55;
}
.check-item p{
  margin-top:4px;
  font-size:14px;
  color:var(--muted);
  line-height:1.75;
}

/* ============ 处理流程时间线 ============ */
.flow-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:16px;
  margin-top:8px;
}
@media (min-width:640px){ .flow-grid{grid-template-columns:1fr 1fr;} }
@media (min-width:1024px){ .flow-grid{grid-template-columns:repeat(4,1fr);gap:20px;} }
.flow-card{
  position:relative;
  padding:24px 20px;
  border-radius:var(--radius-card);
  background:var(--panel);
  border:1px solid var(--border);
  box-shadow:var(--shadow-soft);
  transition:border-color .18s ease-out,transform .18s ease-out;
}
.flow-card:hover{border-color:rgba(47,212,232,.28);transform:translateY(-3px);}
.flow-card .step{
  font-family:var(--font-num);
  font-size:12px;
  font-weight:600;
  letter-spacing:.1em;
  color:var(--gold);
}
.flow-card h3{
  margin-top:10px;
  font-size:16px;
  font-weight:600;
}
.flow-card p{
  margin-top:8px;
  font-size:14px;
  color:var(--muted);
  line-height:1.75;
}
.flow-card::after{
  content:"";
  position:absolute;
  left:20px;
  bottom:0;
  width:36px;
  height:3px;
  border-radius:3px;
  background:linear-gradient(90deg,var(--primary),transparent);
  opacity:.7;
}

/* ============ FAQ ============ */
.faq-wrap{
  display:grid;
  grid-template-columns:1fr;
  gap:24px;
}
@media (min-width:1024px){
  .faq-wrap{grid-template-columns:8fr 4fr;gap:28px;align-items:start;}
}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--radius-img);
  overflow:hidden;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.faq-item:hover{border-color:rgba(47,212,232,.26);}
.faq-item.is-open{border-color:rgba(47,212,232,.36);box-shadow:0 10px 26px rgba(0,0,0,.34);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 20px;
  background:transparent;
  border:0;
  color:var(--text);
  font-size:16px;
  font-weight:600;
  text-align:left;
  cursor:pointer;
  line-height:1.6;
}
.faq-q:hover{color:var(--primary);}
.faq-arrow{
  flex:0 0 auto;
  width:28px;height:28px;
  border-radius:50%;
  border:1px solid var(--border-strong);
  display:flex;align-items:center;justify-content:center;
  color:var(--muted);
  transition:transform .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.faq-arrow svg{width:12px;height:12px;}
.faq-item.is-open .faq-arrow{transform:rotate(180deg);color:var(--primary);border-color:rgba(47,212,232,.5);}
.faq-a{
  display:none;
  padding:0 20px 18px;
  font-size:15px;
  color:var(--muted);
  line-height:1.85;
  border-top:1px solid var(--border);
  padding-top:16px;
}
.faq-item.is-open .faq-a{display:block;}
.aside-card{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  padding:24px;
}
.aside-card h3{
  font-size:17px;
  font-weight:600;
}
.aside-card p{
  margin-top:10px;
  font-size:14px;
  color:var(--muted);
  line-height:1.85;
}
.aside-card .aside-list{
  margin-top:16px;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.aside-card .aside-list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:12px 14px;
  border-radius:12px;
  background:rgba(255,255,255,.03);
  border:1px solid var(--border);
  font-size:14px;
  color:var(--muted);
  transition:color .18s ease-out,border-color .18s ease-out,background .18s ease-out;
}
.aside-card .aside-list a:hover{
  color:var(--primary);
  border-color:rgba(47,212,232,.3);
  background:rgba(47,212,232,.07);
}
.aside-card .aside-list a span{color:var(--dim);font-size:13px;}

/* ============ 底部 CTA ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:24px;
  border:1px solid rgba(255,255,255,.1);
  background:rgba(14,23,40,.62) url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
}
.cta-band::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(7,12,22,.94) 10%,rgba(7,12,22,.66) 60%,rgba(7,12,22,.42) 100%);
}
.cta-band .cta-inner{
  position:relative;
  z-index:2;
  padding:36px 24px;
  display:flex;
  flex-direction:column;
  gap:20px;
  align-items:flex-start;
}
@media (min-width:768px){
  .cta-band .cta-inner{
    flex-direction:row;
    align-items:center;
    justify-content:space-between;
    padding:44px 44px;
  }
}
.cta-band h2{
  font-size:22px;
  font-weight:700;
  line-height:1.45;
}
@media (min-width:1024px){ .cta-band h2{font-size:26px;} }
.cta-band p{
  margin-top:8px;
  font-size:14px;
  color:var(--muted);
}
@media (max-width:767px){ .cta-band .btn{width:100%;} }

/* ============ 页脚 ============ */
.site-footer{
  margin-top:64px;
  background:#05090F;
  border-top:1px solid transparent;
  border-image:linear-gradient(90deg,transparent,rgba(47,212,232,.45),transparent) 1;
  padding:56px 0 24px;
}
@media (min-width:1024px){ .site-footer{padding:72px 0 28px;} }
.site-footer .grid-x{display:flex;flex-wrap:wrap;margin-left:-12px;margin-right:-12px;}
.site-footer .footer-col{
  padding:0 12px;
  margin-bottom:32px;
  width:100%;
}
@media (min-width:640px){ .site-footer .footer-col{width:50%;} }
@media (min-width:1024px){ .site-footer .footer-col{width:25%;} }
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
}
.footer-brand .brand-mark{
  width:32px;height:32px;
}
.footer-brand .brand-text{font-size:16px;font-weight:700;}
.footer-desc{
  margin-top:12px;
  font-size:14px;
  color:var(--muted);
  line-height:1.8;
  max-width:260px;
}
.footer-title{
  font-size:14px;
  font-weight:700;
  color:var(--text);
  margin-bottom:14px;
  letter-spacing:.03em;
}
.footer-links{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.footer-links a{
  font-size:14px;
  color:var(--muted);
  transition:color .18s ease-out,transform .18s ease-out;
}
.footer-links a:hover{color:var(--primary);transform:translateX(2px);}
.footer-info{
  display:flex;
  flex-direction:column;
  gap:10px;
  font-size:14px;
  color:var(--muted);
  line-height:1.75;
}
.footer-info strong{color:var(--text);font-weight:600;}
.footer-bottom{
  margin-top:16px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.06);
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  font-size:12px;
  color:var(--dim);
}
.footer-bottom .kws{letter-spacing:.04em;}

/* 滚动进场 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease-out,transform .5s ease-out;}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
}