/* roulang page: index */
:root{
  --bg-base:#060B12;
  --bg-elev:#0C1622;
  --surface:rgba(255,255,255,.045);
  --surface-2:rgba(255,255,255,.07);
  --primary:#18E0C0;
  --primary-deep:#0FA891;
  --accent:#FFB443;
  --text:#EAF2F6;
  --muted:#8FA3B0;
  --line:rgba(255,255,255,.10);
  --danger:#FF6B6B;
  --glow-sm:0 0 0 1px rgba(24,224,192,.30);
  --glow-md:0 0 0 1px rgba(24,224,192,.38), 0 10px 32px rgba(24,224,192,.16);
  --shadow-card:0 18px 46px rgba(0,0,0,.45);
  --r-sm:12px;
  --r-md:20px;
  --r-lg:28px;
  --r-pill:999px;
  --mono:ui-monospace,"Roboto Mono","SFMono-Regular",Menlo,Consolas,monospace;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --container:1240px;
  --narrow:760px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  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:64px 64px;
  mask-image:radial-gradient(circle at 50% 0%,rgba(0,0,0,.9),transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 0%,rgba(0,0,0,.9),transparent 78%);
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;padding:0;}
h1,h2,h3,h4{font-weight:800;line-height:1.25;letter-spacing:.01em;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--primary);}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,textarea,select{font-family:inherit;font-size:16px;}
::selection{background:rgba(24,224,192,.28);color:#fff;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;position:relative;z-index:1;}
.narrow{max-width:var(--narrow);}
.section{padding:96px 0;position:relative;z-index:1;}
.section--tight{padding:64px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.section-title{font-size:clamp(24px,2.6vw,34px);}
.section-title span{color:var(--primary);}
.section-sub{color:var(--muted);font-size:15px;margin-top:10px;max-width:640px;}
.link-more{color:var(--primary);font-size:14px;font-weight:700;white-space:nowrap;display:inline-flex;align-items:center;gap:6px;}
.link-more:hover{gap:10px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--primary);font-weight:700;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-pill);padding:6px 14px;
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:11px;letter-spacing:.06em;text-transform:uppercase;
  font-weight:700;padding:4px 10px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:var(--surface);color:var(--muted);
}
.badge--ok{color:var(--primary);border-color:rgba(24,224,192,.35);background:rgba(24,224,192,.10);}
.badge--warm{color:var(--accent);border-color:rgba(255,180,67,.35);background:rgba(255,180,67,.10);}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,11,18,.55);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{background:rgba(6,11,18,.86);border-bottom-color:var(--line);}
.nav-inner{
  height:68px;display:flex;align-items:center;gap:28px;
  width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;flex:0 0 auto;
  background:linear-gradient(150deg,var(--primary),var(--primary-deep));
  display:flex;align-items:center;justify-content:center;
  color:#04140f;font-weight:800;font-size:15px;letter-spacing:-.02em;
  box-shadow:var(--glow-md);
}
.brand-name{font-size:19px;font-weight:800;letter-spacing:.01em;color:var(--text);}
.brand-name em{font-style:normal;color:var(--primary);}
.nav-links{display:flex;align-items:center;gap:4px;flex:1 1 auto;justify-content:center;flex-wrap:nowrap;}
.nav-link{
  font-size:14px;font-weight:500;color:var(--muted);
  padding:8px 12px;border-radius:var(--r-pill);white-space:nowrap;
  border:1px solid transparent;transition:all .2s ease;position:relative;
}
.nav-link:hover{color:var(--text);background:var(--surface);}
.nav-link.is-active{color:var(--primary);background:rgba(24,224,192,.09);border-color:rgba(24,224,192,.28);}
.nav-side{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.countdown-pill{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;color:var(--muted);
  border:1px solid var(--line);background:var(--surface);
  border-radius:var(--r-pill);padding:6px 12px;white-space:nowrap;
}
.countdown-pill b{color:var(--accent);font-family:var(--mono);font-weight:600;letter-spacing:.04em;}
.dot-live{width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px rgba(24,224,192,.16);}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:12px;
  border:1px solid var(--line);background:var(--surface);
  align-items:center;justify-content:center;font-size:16px;color:var(--text);
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:700;padding:13px 26px;border-radius:var(--r-pill);
  transition:transform .18s ease,box-shadow .18s ease,filter .18s ease,background .18s ease;
  border:1px solid transparent;white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(140deg,var(--primary),var(--primary-deep));
  color:#04140f;box-shadow:var(--glow-md);
}
.btn-primary:hover{color:#04140f;transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(24,224,192,.5),0 16px 40px rgba(24,224,192,.24);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:var(--surface);border:1px solid var(--line);color:var(--text);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.btn-ghost:hover{color:var(--text);transform:translateY(-2px);border-color:rgba(24,224,192,.4);background:var(--surface-2);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{padding:9px 18px;font-size:13px;}
.btn:focus-visible,.nav-link:focus-visible,.faq-q:focus-visible,.reel-card:focus-visible{
  outline:3px solid rgba(24,224,192,.6);outline-offset:2px;
}

/* ---------- hero ---------- */
.hero{position:relative;padding:80px 0 72px;overflow:hidden;}
.hero::after{
  content:"";position:absolute;top:-200px;right:-160px;width:620px;height:620px;
  background:radial-gradient(circle,rgba(24,224,192,.16),transparent 66%);
  pointer-events:none;z-index:0;
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;position:relative;z-index:1;}
.hero-title{font-size:clamp(30px,4.6vw,54px);line-height:1.16;margin:20px 0 18px;letter-spacing:-.01em;}
.hero-title mark{background:none;color:var(--primary);}
.hero-sub{color:var(--muted);font-size:17px;max-width:540px;line-height:1.8;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:32px 0 34px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;}
.stat{
  border:1px solid var(--line);background:var(--surface);border-radius:var(--r-sm);
  padding:12px 18px;min-width:132px;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.stat b{display:block;font-family:var(--mono);font-size:22px;color:var(--primary);font-weight:600;letter-spacing:-.01em;}
.stat span{font-size:12px;color:var(--muted);}
.hero-visual{position:relative;display:flex;justify-content:center;}
.phone-frame{
  position:relative;width:min(330px,100%);aspect-ratio:9/16;
  border-radius:24px;overflow:hidden;border:1px solid rgba(255,255,255,.12);
  box-shadow:var(--shadow-card);
  background:var(--bg-elev);
}
.phone-frame img{width:100%;height:100%;object-fit:cover;opacity:.86;}
.phone-frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,11,18,.30),rgba(6,11,18,.15) 40%,rgba(6,11,18,.92));
}
.phone-top{position:absolute;top:14px;left:14px;right:14px;display:flex;justify-content:space-between;z-index:3;}
.phone-bottom{position:absolute;left:18px;right:18px;bottom:18px;z-index:3;}
.phone-bottom h3{font-size:17px;margin-bottom:6px;}
.phone-bottom p{font-size:13px;color:var(--muted);}
.phone-float{
  position:absolute;left:-18px;bottom:70px;z-index:4;
  background:rgba(12,22,34,.82);border:1px solid var(--line);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-radius:var(--r-sm);padding:12px 16px;box-shadow:var(--shadow-card);
}
.phone-float span{display:block;font-size:11px;color:var(--muted);letter-spacing:.08em;text-transform:uppercase;}
.phone-float b{font-family:var(--mono);font-size:18px;color:var(--accent);}

/* ---------- rail ---------- */
.rail-wrap{position:relative;}
.rail{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 4px 22px;scrollbar-width:none;
}
.rail::-webkit-scrollbar{display:none;}
.reel-card{
  flex:0 0 232px;scroll-snap-align:start;
  border-radius:24px;overflow:hidden;position:relative;
  border:1px solid var(--line);background:var(--bg-elev);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.reel-card:hover{transform:translateY(-4px);border-color:rgba(24,224,192,.4);box-shadow:var(--shadow-card);}
.reel-media{position:relative;aspect-ratio:9/16;overflow:hidden;}
.reel-media img{width:100%;height:100%;object-fit:cover;}
.reel-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,11,18,.18),rgba(6,11,18,.10) 45%,rgba(6,11,18,.94));
}
.reel-top{position:absolute;top:12px;left:12px;right:12px;display:flex;justify-content:space-between;z-index:3;}
.reel-play{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);z-index:3;
  width:48px;height:48px;border-radius:50%;
  background:rgba(6,11,18,.5);border:1px solid rgba(255,255,255,.24);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  display:flex;align-items:center;justify-content:center;color:var(--primary);
}
.reel-body{position:absolute;left:14px;right:14px;bottom:14px;z-index:3;}
.reel-body h3{font-size:15px;line-height:1.35;margin-bottom:6px;}
.reel-tag{font-size:11px;color:var(--muted);letter-spacing:.06em;}
.rail-nav{display:flex;justify-content:space-between;align-items:center;margin-top:6px;}
.rail-dots{display:flex;gap:7px;}
.rail-dots i{width:7px;height:7px;border-radius:50%;background:rgba(255,255,255,.18);display:block;}
.rail-dots i.on{background:var(--primary);width:20px;border-radius:var(--r-pill);}
.rail-arrows{display:flex;gap:10px;}
.rail-arrow{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--line);
  background:var(--surface);display:flex;align-items:center;justify-content:center;color:var(--text);
  transition:all .2s ease;
}
.rail-arrow:hover{border-color:rgba(24,224,192,.45);color:var(--primary);background:var(--surface-2);}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.step{
  display:flex;gap:18px;padding:24px;border-radius:var(--r-md);
  background:var(--bg-elev);border:1px solid var(--line);
  transition:border-color .2s ease,transform .2s ease;
}
.step:hover{border-color:rgba(24,224,192,.35);transform:translateY(-3px);}
.step-num{
  font-family:var(--mono);font-size:22px;font-weight:600;color:var(--primary);
  line-height:1;padding-top:4px;flex:0 0 auto;min-width:42px;
}
.step-body h3{font-size:19px;margin-bottom:8px;}
.step-body p{font-size:14.5px;color:var(--muted);}

/* ---------- voices ---------- */
.voices{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
.voice{
  background:rgba(12,22,34,.72);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
}
.voice-head{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.voice-avatar{
  width:40px;height:40px;border-radius:50%;flex:0 0 auto;
  background:linear-gradient(140deg,rgba(24,224,192,.9),rgba(15,168,145,.6));
  display:flex;align-items:center;justify-content:center;color:#04140f;font-weight:800;font-size:15px;
}
.voice-name{font-size:14px;font-weight:700;}
.voice-name span{display:block;font-size:12px;color:var(--muted);font-weight:400;}
.voice p{font-size:14.5px;color:#C7D6DF;line-height:1.8;}
.voice-foot{
  margin-top:14px;padding-top:12px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;font-size:12px;color:var(--muted);
}
.voice-foot b{color:var(--accent);font-family:var(--mono);font-weight:600;}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  border:1px solid rgba(24,224,192,.28);
  background:linear-gradient(135deg,rgba(24,224,192,.10),rgba(12,22,34,.9) 52%);
  padding:48px;
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  box-shadow:var(--shadow-card);
}
.cta-band::before{
  content:"";position:absolute;right:-90px;top:-90px;width:340px;height:340px;
  background:radial-gradient(circle,rgba(255,180,67,.16),transparent 68%);
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:36px;position:relative;z-index:1;}
.cta-inner h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:12px;}
.cta-inner p{color:var(--muted);font-size:15px;max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto;}
.cta-figure{
  position:absolute;inset:0;z-index:0;opacity:.16;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.news-card{
  display:flex;flex-direction:column;border-radius:var(--r-md);overflow:hidden;
  background:var(--bg-elev);border:1px solid var(--line);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.news-card:hover{border-color:rgba(24,224,192,.4);transform:translateY(-4px);box-shadow:var(--shadow-card);}
.news-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0A131C;}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.news-card:hover .news-cover img{transform:scale(1.05);}
.news-cover .badge{position:absolute;top:12px;left:12px;background:rgba(6,11,18,.72);}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto;}
.news-title{font-size:17px;line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-title a:hover{color:var(--primary);}
.news-excerpt{font-size:14px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;flex:1 1 auto;}
.news-meta{
  margin-top:16px;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--muted);
}
.news-meta .mono{color:#A9BCC7;}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;border-radius:var(--r-md);
  border:1px dashed var(--line);background:var(--surface);
}
.empty-state .empty-ico{
  width:56px;height:56px;border-radius:16px;margin:0 auto 16px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--primary);font-size:22px;
  background:rgba(24,224,192,.08);
}
.empty-state p{color:var(--muted);margin-bottom:18px;}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{border:1px solid var(--line);border-radius:var(--r-md);background:var(--bg-elev);overflow:hidden;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:18px;font-weight:700;text-align:left;color:var(--text);
}
.faq-q i{color:var(--primary);transition:transform .25s ease;flex:0 0 auto;}
.faq-item.is-open .faq-q i{transform:rotate(45deg);}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .3s ease;
  background:rgba(255,255,255,.035);
}
.faq-a p{padding:0 24px 22px;color:var(--muted);font-size:15px;line-height:1.85;}
.faq-item.is-open{border-color:rgba(24,224,192,.35);}

/* ---------- footer ---------- */
.site-footer{
  margin-top:40px;border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(12,22,34,.6),rgba(6,11,18,.95));
  padding:72px 0 0;position:relative;z-index:1;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
.footer-brand p{color:var(--muted);font-size:14px;margin-top:16px;max-width:320px;}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text);}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:var(--muted);}
.footer-col a:hover{color:var(--primary);}
.footer-meta{display:flex;gap:22px;flex-wrap:wrap;margin-top:18px;font-size:13px;color:var(--muted);}
.footer-meta b{color:var(--accent);font-family:var(--mono);font-weight:600;}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--line);padding:24px 0;
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}
.footer-bottom a{color:var(--muted);}
.footer-bottom a:hover{color:var(--primary);}

/* ---------- back to top ---------- */
.back-top{
  position:fixed;right:24px;bottom:24px;z-index:70;
  width:46px;height:46px;border-radius:50%;
  border:1px solid var(--line);background:rgba(12,22,34,.85);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  color:var(--primary);display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transform:translateY(10px);transition:all .25s ease;
}
.back-top.on{opacity:1;visibility:visible;transform:translateY(0);}
.back-top:hover{border-color:rgba(24,224,192,.5);box-shadow:var(--glow-sm);}

/* ---------- mobile drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;visibility:hidden;opacity:0;transition:opacity .25s ease,visibility .25s ease;
}
.drawer.on{visibility:visible;opacity:1;}
.drawer-mask{position:absolute;inset:0;background:rgba(3,7,11,.72);backdrop-filter:blur(6px);}
.drawer-panel{
  position:absolute;top:0;right:0;height:100%;width:min(340px,86%);
  background:var(--bg-elev);border-left:1px solid var(--line);
  padding:24px;display:flex;flex-direction:column;gap:10px;
  transform:translateX(100%);transition:transform .3s ease;
}
.drawer.on .drawer-panel{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.drawer-link{padding:14px 16px;border-radius:var(--r-sm);border:1px solid var(--line);background:var(--surface);font-size:15px;}
.drawer-link.is-active{color:var(--primary);border-color:rgba(24,224,192,.35);background:rgba(24,224,192,.08);}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px;}

@media screen and (max-width:1023px){
  .nav-links,.nav-side .countdown-pill,.nav-side .btn{display:none;}
  .nav-toggle{display:flex;}
  .hero-grid{grid-template-columns:1fr;gap:44px;}
  .hero{padding:56px 0;}
  .hero-visual{justify-content:flex-start;}
  .phone-frame{width:min(300px,80%);}
  .steps{grid-template-columns:1fr;}
  .voices{grid-template-columns:repeat(2,minmax(0,1fr));}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{padding:36px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
}
@media screen and (max-width:767px){
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .voices,.news-grid{grid-template-columns:1fr;}
  .reel-card{flex:0 0 190px;}
  .rail-arrows{display:none;}
  .hero-title{font-size:clamp(28px,7.4vw,38px);}
  .hero-sub{font-size:15.5px;}
  .stat{flex:1 1 46%;}
  .cta-band{padding:28px 22px;border-radius:var(--r-md);}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .phone-float{left:0;bottom:24px;}
  .faq-q{font-size:16px;padding:18px;}
  .faq-a p{padding:0 18px 20px;}
  .back-top{right:16px;bottom:16px;}
}
@media screen and (max-width:520px){
  .nav-inner{gap:12px;padding:0 16px;}
  .brand-name{font-size:17px;}
  .reel-card{flex:0 0 168px;}
  .step{flex-direction:column;gap:10px;}
  .step-num{min-width:0;}
}

/* roulang page: article */
:root{
  --bg-base:#060B12;
  --bg-elev:#0C1622;
  --surface:rgba(255,255,255,.045);
  --surface-2:rgba(255,255,255,.07);
  --primary:#18E0C0;
  --primary-deep:#0FA891;
  --primary-soft:rgba(24,224,192,.12);
  --accent:#FFB443;
  --accent-soft:rgba(255,180,67,.12);
  --text:#EAF2F6;
  --text-2:#D3E1E9;
  --muted:#8FA3B0;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --danger:#FF6B6B;
  --glow-sm:0 0 0 1px rgba(24,224,192,.30);
  --glow-md:0 0 0 1px rgba(24,224,192,.38),0 10px 32px rgba(24,224,192,.16);
  --glow-lg:0 0 0 1px rgba(24,224,192,.42),0 18px 46px rgba(24,224,192,.24);
  --shadow-card:0 18px 46px rgba(0,0,0,.45);
  --r-sm:12px;
  --r-md:20px;
  --r-lg:28px;
  --r-pill:999px;
  --nav-h:68px;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:ui-monospace,"Roboto Mono","SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-top:var(--nav-h);
  background:var(--bg-base);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(900px 520px at 12% -10%,rgba(24,224,192,.10),transparent 62%),
    radial-gradient(760px 420px at 96% 4%,rgba(255,180,67,.07),transparent 60%);
  background-repeat:no-repeat;
  background-attachment:fixed;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--primary);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover,a:focus{color:#5FF0D8}
h1,h2,h3,h4,h5{margin:0;font-weight:800;line-height:1.28;letter-spacing:-.01em;color:var(--text)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea,select{font-family:inherit;font-size:16px}
:focus-visible{outline:3px solid rgba(24,224,192,.65);outline-offset:2px;border-radius:6px}
::selection{background:rgba(24,224,192,.28);color:#fff}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.container-narrow{max-width:820px}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  height:var(--nav-h);
  display:flex;align-items:center;
  background:rgba(6,11,18,.72);
  border-bottom:1px solid transparent;
  backdrop-filter:blur(6px);
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header.is-scrolled{
  background:rgba(8,14,22,.88);
  border-bottom-color:var(--line);
  box-shadow:0 12px 34px rgba(0,0,0,.45);
  backdrop-filter:blur(18px);
}
.header-inner{display:flex;align-items:center;gap:22px;width:100%}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:11px;flex:0 0 auto;
  display:grid;place-items:center;
  font-family:var(--font-mono);font-size:12px;font-weight:700;letter-spacing:.02em;
  color:#04120F;background:linear-gradient(140deg,var(--primary),var(--primary-deep));
  box-shadow:var(--glow-sm);
}
.brand-name{font-size:19px;font-weight:800;color:var(--text);letter-spacing:-.01em}
.brand-name em{font-style:normal;color:var(--primary)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:6px}
.nav-link{
  position:relative;display:inline-block;padding:9px 14px;border-radius:var(--r-pill);
  font-size:14.5px;font-weight:600;color:var(--muted);white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--text);background:var(--surface)}
.nav-link.is-active{color:var(--primary);background:var(--primary-soft);box-shadow:inset 0 0 0 1px rgba(24,224,192,.22)}
.nav-link.is-active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),rgba(24,224,192,0));
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.countdown{
  display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:var(--r-pill);
  background:var(--accent-soft);border:1px solid rgba(255,180,67,.28);
  font-size:12px;color:var(--accent);white-space:nowrap;
}
.countdown b{font-family:var(--font-mono);font-size:13px;letter-spacing:.04em}
.status-badge{
  display:inline-flex;align-items:center;gap:7px;padding:6px 12px;border-radius:var(--r-pill);
  background:var(--surface);border:1px solid var(--line);font-size:12px;color:var(--text-2);white-space:nowrap;
}
.status-badge i{width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 3px rgba(24,224,192,.18)}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:var(--surface);color:var(--text);place-items:center;font-size:16px;
}
.menu-toggle:hover{background:var(--surface-2);border-color:var(--line-strong)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-pill);font-size:15px;font-weight:700;
  border:1px solid transparent;white-space:nowrap;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .2s ease;
}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-deep));color:#03130F;box-shadow:var(--glow-md)}
.btn-primary:hover{color:#03130F;transform:translateY(-2px);filter:brightness(1.08);box-shadow:var(--glow-lg)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:var(--surface);border-color:var(--line-strong);color:var(--text);backdrop-filter:blur(14px)}
.btn-ghost:hover{background:var(--surface-2);border-color:rgba(24,224,192,.45);color:var(--primary);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;pointer-events:none}

/* 抽屉 */
.drawer{
  position:fixed;inset:var(--nav-h) 0 auto 0;z-index:75;
  background:rgba(7,13,20,.96);border-bottom:1px solid var(--line);
  backdrop-filter:blur(20px);
  transform:translateY(-12px);opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease;
}
.drawer.is-open{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0)}
.drawer-inner{padding:18px 24px 26px;display:grid;gap:8px}
.drawer .nav-link{display:block;padding:13px 16px;font-size:15.5px;border-radius:14px;background:var(--surface)}
.drawer-foot{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding-top:10px;border-top:1px solid var(--line);margin-top:6px}

/* ============ 面包屑 ============ */
.crumb-bar{
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(12,22,34,.75),rgba(6,11,18,0));
}
.crumb{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  padding:20px 0 18px;font-size:13.5px;color:var(--muted);
}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--primary)}
.crumb .sep{opacity:.45}
.crumb .current{color:var(--text-2);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 文章头 ============ */
.article-hero{
  position:relative;overflow:hidden;
  padding:52px 0 44px;
  border-bottom:1px solid var(--line);
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(6,11,18,.86),rgba(6,11,18,.96)),url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  opacity:.5;z-index:0;
}
.article-hero .container{position:relative;z-index:1}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  font-size:11.5px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
  color:var(--primary);background:var(--primary-soft);border:1px solid rgba(24,224,192,.26);
  margin-bottom:20px;
}
.article-title{
  font-size:clamp(28px,4.1vw,48px);
  font-weight:800;line-height:1.24;letter-spacing:-.015em;
  max-width:960px;margin-bottom:22px;
}
.article-meta{
  display:flex;align-items:center;gap:10px 20px;flex-wrap:wrap;
  font-size:13.5px;color:var(--muted);
}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--primary);font-size:12px}
.article-meta .tag{
  padding:4px 12px;border-radius:var(--r-pill);background:var(--surface);
  border:1px solid var(--line);color:var(--text-2);font-size:12.5px;
}

/* ============ 正文 ============ */
.article-main{padding:56px 0 8px}
.article-shell{display:grid;grid-template-columns:minmax(0,1fr);gap:40px}
.article-wrap{max-width:760px;width:100%}
.article-body{font-size:16.5px;line-height:1.85;color:var(--text-2)}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.15em}
.article-body h2{
  position:relative;margin:2.2em 0 .85em;padding-left:16px;
  font-size:clamp(21px,2.2vw,27px);line-height:1.35;color:var(--text);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--primary),var(--primary-deep));
}
.article-body h3{margin:1.8em 0 .7em;font-size:20px;color:var(--text)}
.article-body h4{margin:1.5em 0 .6em;font-size:17.5px;color:var(--text)}
.article-body strong{color:var(--text);font-weight:700}
.article-body em{color:var(--primary);font-style:normal}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:#5FF0D8}
.article-body ul,.article-body ol{margin:1.05em 0 1.3em;padding-left:1.35em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:.5em 0}
.article-body li::marker{color:var(--primary)}
.article-body blockquote{
  margin:1.5em 0;padding:18px 22px;border-left:3px solid var(--primary);
  background:var(--surface);backdrop-filter:blur(14px);
  border-radius:0 var(--r-sm) var(--r-sm) 0;color:#CFE6EE;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-md);margin:1.7em auto;border:1px solid var(--line)}
.article-body figure{margin:1.7em 0}
.article-body figcaption{margin-top:10px;font-size:13px;color:var(--muted);text-align:center}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.2em 0}
.article-body table{
  display:block;width:100%;overflow-x:auto;margin:1.6em 0;
  border-collapse:collapse;border:1px solid var(--line);border-radius:var(--r-sm);
  font-size:15px;
}
.article-body th,.article-body td{padding:11px 15px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap}
.article-body th{background:var(--surface-2);color:var(--text);font-weight:700}
.article-body tr:last-child td{border-bottom:0}
.article-body code{
  font-family:var(--font-mono);font-size:14px;padding:2px 7px;border-radius:6px;
  background:rgba(255,255,255,.08);color:#8CF3E0;
}
.article-body pre{
  margin:1.5em 0;padding:17px 19px;overflow-x:auto;
  background:#050A10;border:1px solid var(--line);border-radius:var(--r-sm);
}
.article-body pre code{background:none;padding:0;color:#BEEBFF}

/* 空态 */
.empty-state{
  padding:64px 28px;text-align:center;border-radius:var(--r-lg);
  background:var(--bg-elev);border:1px solid var(--line);
}
.empty-state .dots{
  width:96px;height:64px;margin:0 auto 22px;border-radius:14px;
  background-image:radial-gradient(rgba(24,224,192,.45) 1.6px,transparent 1.6px);
  background-size:12px 12px;border:1px solid var(--line);
}
.empty-state h2{font-size:22px;margin-bottom:12px}
.empty-state p{color:var(--muted);margin-bottom:22px}

/* 文末动作条 */
.article-actions{
  margin-top:44px;padding:24px 26px;border-radius:var(--r-md);
  background:var(--bg-elev);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
}
.article-actions .tip{font-size:14px;color:var(--muted);max-width:420px}
.article-actions .tip b{color:var(--text);display:block;font-size:15.5px;margin-bottom:4px}
.article-actions .acts{display:flex;gap:12px;flex-wrap:wrap}

/* 相关推荐 */
.section{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:32px}
.section-head h2{font-size:clamp(22px,2.6vw,32px)}
.section-head p{margin-top:10px;color:var(--muted);font-size:14.5px;max-width:640px}
.section-head .more{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--bg-elev);border:1px solid var(--line);border-radius:var(--r-md);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.card:hover{transform:translateY(-4px);border-color:rgba(24,224,192,.42);box-shadow:var(--shadow-card)}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0A131D}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.card:hover .card-media img{transform:scale(1.05)}
.card-media .badge{
  position:absolute;left:12px;top:12px;padding:4px 11px;border-radius:var(--r-pill);
  font-size:11.5px;font-weight:700;letter-spacing:.04em;
  background:rgba(6,11,18,.78);color:var(--primary);border:1px solid rgba(24,224,192,.32);
  backdrop-filter:blur(10px);
}
.card-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:17.5px;line-height:1.45}
.card-body p{font-size:14px;color:var(--muted);line-height:1.7}
.card-foot{margin-top:auto;display:flex;align-items:center;gap:12px;font-size:12.5px;color:var(--muted)}
.card-foot .dot{width:4px;height:4px;border-radius:50%;background:var(--line-strong)}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{background:var(--bg-elev);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;transition:border-color .25s ease}
.faq-item[open]{border-color:rgba(24,224,192,.38)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:19px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  font-size:17px;font-weight:700;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"\f107";font-family:"Font Awesome 6 Free";font-weight:900;
  color:var(--primary);font-size:15px;transition:transform .25s ease;flex:0 0 auto;
}
.faq-item[open] summary::after{transform:rotate(180deg)}
.faq-item summary:hover{color:var(--primary)}
.faq-answer{
  padding:0 24px 21px;color:var(--muted);font-size:15px;line-height:1.8;
  border-top:1px solid transparent;
  background:rgba(255,255,255,.02);
}

/* CTA */
.cta-band{padding:0 0 88px}
.cta-panel{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  padding:46px 44px;
  background:linear-gradient(120deg,rgba(12,22,34,.96),rgba(9,17,26,.96));
  border:1px solid rgba(24,224,192,.26);
  box-shadow:var(--shadow-card);
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-panel::after{
  content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(24,224,192,.22),transparent 68%);
}
.cta-panel h2{font-size:clamp(22px,2.5vw,32px);margin-bottom:12px;position:relative;z-index:1}
.cta-panel p{color:var(--muted);font-size:15px;max-width:560px;position:relative;z-index:1}
.cta-panel .acts{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1}

/* 页脚 */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(9,16,25,.6),rgba(4,8,13,.95));
  padding:64px 0 26px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:38px}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{color:var(--muted);font-size:14px;line-height:1.8;max-width:330px}
.footer-meta{display:flex;gap:22px;flex-wrap:wrap;margin-top:20px;font-size:13px;color:var(--muted)}
.footer-meta b{font-family:var(--font-mono);color:var(--primary);font-size:14px}
.footer-col h4{font-size:14px;color:var(--text);margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:grid;gap:11px}
.footer-col a{color:var(--muted);font-size:14px}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:46px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}
.footer-bottom a{color:var(--muted)}
.footer-bottom a:hover{color:var(--primary)}

/* 返回顶部 */
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:70;
  width:46px;height:46px;border-radius:50%;display:grid;place-items:center;
  background:rgba(12,22,34,.92);border:1px solid var(--line);color:var(--primary);
  backdrop-filter:blur(14px);box-shadow:var(--shadow-card);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease,border-color .25s ease;
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{border-color:rgba(24,224,192,.5);transform:translateY(-3px)}

/* 响应式 */
@media screen and (max-width:1199px){
  .nav-links{gap:0}
  .nav-link{padding:9px 11px;font-size:14px}
  .countdown{display:none}
}
@media screen and (max-width:1023px){
  :root{--nav-h:60px}
  .nav-links{display:none}
  .menu-toggle{display:grid}
  .header-actions{gap:9px}
  .status-badge{display:none}
  .article-hero{padding:40px 0 34px}
  .article-main{padding:44px 0 8px}
  .section{padding:56px 0}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media screen and (max-width:767px){
  .container{padding:0 18px}
  .brand-name{font-size:17px}
  .brand-mark{width:32px;height:32px;font-size:11px}
  .grid-3{grid-template-columns:1fr}
  .cta-panel{padding:32px 22px;border-radius:var(--r-md)}
  .article-actions{padding:20px;flex-direction:column;align-items:flex-start}
  .faq-item summary{padding:16px 18px;font-size:16px}
  .faq-answer{padding:0 18px 18px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media screen and (max-width:575px){
  body{font-size:15.5px}
  .article-body{font-size:16px;line-height:1.8}
  .footer-grid{grid-template-columns:1fr}
  .section{padding:48px 0}
  .to-top{right:14px;bottom:18px}
  .article-title{font-size:26px}
  .drawer-inner{padding:16px 18px 22px}
}

/* roulang page: category1 */
:root{
  --bg-base:#060B12;
  --bg-elev:#0C1622;
  --surface:rgba(255,255,255,.045);
  --surface-2:rgba(255,255,255,.07);
  --primary:#18E0C0;
  --primary-deep:#0FA891;
  --accent:#FFB443;
  --text:#EAF2F6;
  --muted:#8FA3B0;
  --line:rgba(255,255,255,.10);
  --danger:#FF6B6B;
  --glow-sm:0 0 0 1px rgba(24,224,192,.30);
  --glow-md:0 0 0 1px rgba(24,224,192,.38), 0 10px 32px rgba(24,224,192,.16);
  --shadow-card:0 18px 46px rgba(0,0,0,.45);
  --r-sm:12px;
  --r-md:20px;
  --r-lg:28px;
  --r-pill:999px;
  --mono:ui-monospace,"Roboto Mono","SFMono-Regular",Menlo,Consolas,monospace;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  overflow-x:hidden;
  background-image:
    radial-gradient(900px 460px at 88% -8%, rgba(24,224,192,.10), transparent 62%),
    linear-gradient(180deg,#060B12 0%,#070E17 45%,#060B12 100%);
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .18s ease,opacity .18s ease}
a:hover,a:focus{color:#5BF2DA}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 1em}
h1,h2,h3,h4{margin:0 0 .5em;font-weight:800;line-height:1.25;letter-spacing:.01em;color:#fff}
h1{font-size:clamp(30px,4.6vw,54px)}
h2{font-size:clamp(24px,2.6vw,34px)}
h3{font-size:21px}
button,input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:3px solid rgba(24,224,192,.55);outline-offset:2px;border-radius:6px}
::selection{background:rgba(24,224,192,.28);color:#fff}
.grid-container{max-width:1240px;padding-left:20px;padding-right:20px;margin:0 auto;width:100%}
.narrow{max-width:760px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(6,11,18,.55);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,backdrop-filter .25s ease;
}
.site-header.is-scrolled{
  background:rgba(6,11,18,.82);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
}
.header-inner{
  display:flex;align-items:center;gap:20px;
  min-height:68px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  font-family:var(--mono);font-size:14px;font-weight:700;color:#04211C;
  background:linear-gradient(140deg,var(--primary),var(--primary-deep));
  box-shadow:var(--glow-md);
}
.brand-name{font-weight:800;font-size:19px;color:#fff;letter-spacing:.02em}
.brand-name em{font-style:normal;color:var(--primary)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:12px;flex:1 1 auto;min-width:0}
.nav-link{
  position:relative;display:inline-block;
  padding:8px 13px;border-radius:var(--r-pill);
  font-size:14.5px;color:var(--muted);white-space:nowrap;
  border:1px solid transparent;
  transition:color .18s ease,background .18s ease,border-color .18s ease;
}
.nav-link:hover{color:#fff;background:var(--surface);border-color:var(--line)}
.nav-link.is-active{
  color:#fff;background:rgba(24,224,192,.10);border-color:rgba(24,224,192,.30);
}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),rgba(24,224,192,0));
}
.header-side{display:flex;align-items:center;gap:10px;margin-left:auto;flex:0 0 auto}
.countdown-pill{
  font-family:var(--mono);font-size:12.5px;letter-spacing:.04em;
  color:var(--accent);
  border:1px solid rgba(255,180,67,.32);
  background:rgba(255,180,67,.08);
  padding:6px 12px;border-radius:var(--r-pill);white-space:nowrap;
}
.countdown-pill b{color:#FFD79A;font-weight:700}
.status-badge{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12.5px;color:#C7F7EE;
  border:1px solid rgba(24,224,192,.28);
  background:rgba(24,224,192,.08);
  padding:6px 12px;border-radius:var(--r-pill);white-space:nowrap;
}
.status-badge i{width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px rgba(24,224,192,.16)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:var(--r-pill);
  font-weight:700;font-size:15px;line-height:1;
  padding:14px 26px;cursor:pointer;
  transition:transform .16s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease,filter .2s ease;
}
.btn-primary{background:linear-gradient(140deg,var(--primary),var(--primary-deep));color:#04211C;box-shadow:var(--glow-md)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(24,224,192,.5),0 16px 38px rgba(24,224,192,.26);color:#04211C}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:var(--surface);color:var(--text);border-color:var(--line);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.btn-ghost:hover{transform:translateY(-2px);border-color:rgba(24,224,192,.45);color:#fff;background:var(--surface-2)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-block{width:100%}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:var(--surface);color:var(--text);
  align-items:center;justify-content:center;font-size:17px;cursor:pointer;
}
.nav-toggle:hover{border-color:rgba(24,224,192,.45);color:#fff}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);
  background:rgba(6,11,18,.96);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  padding:14px 20px 22px;
}
.mobile-drawer.is-open{display:block}
.mobile-drawer .nav-link{display:block;padding:12px 14px;font-size:15.5px}
.mobile-drawer .drawer-foot{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}

/* ---------- hero band ---------- */
.hero-band{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(180deg,rgba(6,11,18,.72),rgba(6,11,18,.94)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  padding:56px 0 60px;
}
.hero-band::after{
  content:"";position:absolute;right:-60px;bottom:-90px;width:280px;height:280px;
  background:linear-gradient(135deg,rgba(24,224,192,.22),rgba(24,224,192,0));
  clip-path:polygon(100% 0,100% 100%,0 100%);
  pointer-events:none;
}
.hero-band::before{
  content:"";position:absolute;left:0;top:0;width:100%;height:100%;
  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:56px 56px;opacity:.5;pointer-events:none;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 80%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 80%);
}
.breadcrumb{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-size:13px;color:var(--muted);margin-bottom:22px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb span.sep{opacity:.5}
.breadcrumb .now{color:#CBD9E2}
.hero-inner{position:relative;z-index:2;max-width:820px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--primary);
  border:1px solid rgba(24,224,192,.30);background:rgba(24,224,192,.07);
  padding:6px 13px;border-radius:var(--r-pill);margin-bottom:18px;
}
.hero-band h1{margin-bottom:16px}
.hero-band h1 span{color:var(--primary)}
.hero-lead{font-size:17px;color:#C0D0DA;max-width:660px;margin-bottom:26px}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:28px}
.pill{
  display:flex;flex-direction:column;gap:2px;
  border:1px solid var(--line);background:var(--surface);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-radius:var(--r-sm);padding:10px 16px;min-width:132px;
}
.pill b{font-family:var(--mono);font-size:17px;color:#fff;letter-spacing:.02em}
.pill small{font-size:12px;color:var(--muted)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- section ---------- */
.section{padding:96px 0}
.section-alt{background:linear-gradient(180deg,rgba(255,255,255,.02),rgba(255,255,255,0))}
.section-head{max-width:720px;margin-bottom:44px}
.section-head .eyebrow{margin-bottom:14px}
.section-head p{color:var(--muted);margin:0;font-size:16.5px}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.link-more{font-size:14px;color:var(--primary);display:inline-flex;align-items:center;gap:6px}
.link-more:hover{gap:10px}

/* ---------- numbered step list ---------- */
.step-list{display:flex;flex-direction:column;gap:18px}
.step-item{
  display:grid;grid-template-columns:112px 1fr;gap:24px;
  background:var(--bg-elev);
  border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 28px;
  transition:border-color .2s ease,transform .2s ease,box-shadow .25s ease;
}
.step-item:hover{border-color:rgba(24,224,192,.42);transform:translateY(-3px);box-shadow:var(--shadow-card)}
.step-num{
  font-family:var(--mono);font-size:44px;font-weight:700;line-height:1;
  color:transparent;-webkit-text-stroke:1.4px rgba(24,224,192,.62);
}
.step-num.live{-webkit-text-stroke:0;color:var(--primary)}
.step-body h3{margin-bottom:8px}
.step-body p{color:#B7C7D2;margin-bottom:14px}
.step-points{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:14px}
.step-points li{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;color:#CFDCE4;
  border:1px solid var(--line);background:var(--surface);
  padding:6px 12px;border-radius:var(--r-pill);
}
.step-points li i{color:var(--primary);font-size:11px}
.step-meta{
  display:flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:12.5px;color:var(--muted);
  border-top:1px dashed var(--line);padding-top:12px;
}
.step-meta b{color:var(--accent);font-weight:700}

/* ---------- rail / clip cards ---------- */
.rail{position:relative}
.rail-track{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 4px 22px;scrollbar-width:thin;
  scrollbar-color:rgba(24,224,192,.35) transparent;
}
.rail-track::-webkit-scrollbar{height:6px}
.rail-track::-webkit-scrollbar-thumb{background:rgba(24,224,192,.30);border-radius:6px}
.clip-card{
  scroll-snap-align:start;flex:0 0 268px;
  background:var(--bg-elev);border:1px solid var(--line);border-radius:24px;
  overflow:hidden;transition:border-color .2s ease,transform .2s ease,box-shadow .25s ease;
}
.clip-card:hover{border-color:rgba(24,224,192,.42);transform:translateY(-4px);box-shadow:var(--shadow-card)}
.clip-media{position:relative;aspect-ratio:9/12;overflow:hidden;background:#08111C}
.clip-media img{width:100%;height:100%;object-fit:cover;opacity:.92;transition:transform .4s ease}
.clip-card:hover .clip-media img{transform:scale(1.04)}
.clip-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,11,18,.10) 35%,rgba(6,11,18,.92) 100%)}
.clip-badge{
  position:absolute;left:12px;top:12px;z-index:2;
  font-family:var(--mono);font-size:11px;letter-spacing:.06em;
  color:#04211C;background:var(--primary);border-radius:var(--r-pill);padding:4px 10px;
}
.clip-play{
  position:absolute;right:12px;top:12px;z-index:2;
  width:32px;height:32px;border-radius:50%;display:grid;place-items:center;
  background:rgba(6,11,18,.6);border:1px solid rgba(255,255,255,.18);color:#fff;font-size:11px;
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.clip-title{
  position:absolute;left:14px;right:14px;bottom:14px;z-index:2;
  font-size:16px;font-weight:700;color:#fff;line-height:1.4;
}
.clip-body{padding:14px 16px 18px}
.clip-tag{
  display:inline-block;font-size:11.5px;color:var(--muted);
  border:1px solid var(--line);border-radius:var(--r-pill);
  padding:3px 10px;margin-bottom:8px;
}
.clip-body p{font-size:13.5px;color:var(--muted);margin:0}
.rail-dots{display:flex;gap:7px;justify-content:center}
.rail-dots span{width:22px;height:5px;border-radius:4px;background:rgba(255,255,255,.14)}
.rail-dots span.on{background:var(--primary);box-shadow:var(--glow-sm)}

/* ---------- status rows ---------- */
.status-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.status-row{
  display:flex;align-items:flex-start;gap:16px;
  background:var(--bg-elev);border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px 22px;transition:border-color .2s ease,transform .2s ease;
}
.status-row:hover{border-color:rgba(24,224,192,.38);transform:translateY(-2px)}
.status-icon{
  flex:0 0 auto;width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:var(--surface-2);color:var(--primary);font-size:15px;
}
.status-row h3{font-size:17px;margin-bottom:6px;font-family:var(--mono);letter-spacing:.01em}
.status-row p{font-size:14px;color:var(--muted);margin:0}
.tag{
  display:inline-block;font-size:11.5px;letter-spacing:.06em;
  padding:4px 11px;border-radius:var(--r-pill);margin-bottom:8px;
}
.tag-ok{color:#04211C;background:var(--primary)}
.tag-warn{color:#2A1B03;background:var(--accent)}
.tag-gray{color:#C4D2DB;background:rgba(255,255,255,.10);border:1px solid var(--line)}
.tag-danger{color:#FFD9D9;background:rgba(255,107,107,.18);border:1px solid rgba(255,107,107,.42)}

/* ---------- voice / testimonials ---------- */
.voice-rail{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.voice-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px 20px 18px;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  transition:border-color .2s ease,transform .2s ease;
}
.voice-card:hover{border-color:rgba(24,224,192,.36);transform:translateY(-3px)}
.voice-top{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.avatar{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  font-family:var(--mono);font-size:14px;color:#04211C;
  background:linear-gradient(140deg,var(--primary),var(--primary-deep));
}
.voice-name{font-size:14.5px;font-weight:700;color:#fff}
.voice-sub{font-size:12px;color:var(--muted);font-family:var(--mono)}
.voice-card p{font-size:14.5px;color:#C3D2DC;margin:0 0 12px}
.voice-foot{font-family:var(--mono);font-size:12px;color:var(--accent);border-top:1px dashed var(--line);padding-top:10px}

/* ---------- faq ---------- */
.accordion{border:0;background:transparent;margin:0}
.accordion .accordion-item{
  border:1px solid var(--line);border-radius:var(--r-md);
  background:var(--bg-elev);margin-bottom:12px;overflow:hidden;
  transition:border-color .2s ease;
}
.accordion .accordion-item:hover{border-color:rgba(24,224,192,.34)}
.accordion .accordion-item.is-active{border-color:rgba(24,224,192,.46)}
.accordion .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  border:0;background:transparent;color:#fff;
  font-size:18px;font-weight:700;padding:20px 22px;
}
.accordion .accordion-title:hover{background:rgba(255,255,255,.03);color:#fff}
.accordion .accordion-title::before{display:none}
.accordion .accordion-title::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:13px;color:var(--primary);transition:transform .25s ease;
}
.accordion .accordion-item.is-active .accordion-title::after{transform:rotate(180deg)}
.accordion .accordion-content{
  border:0;background:rgba(255,255,255,.035);color:#C3D2DC;
  font-size:15px;padding:0 22px 20px;
}
.accordion .accordion-content p{margin:0}

/* ---------- cta ---------- */
.cta-panel{
  position:relative;overflow:hidden;
  border:1px solid rgba(24,224,192,.30);border-radius:var(--r-lg);
  background:linear-gradient(120deg,rgba(24,224,192,.13),rgba(12,22,34,.92) 58%),var(--bg-elev);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  padding:44px 46px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-panel h2{margin-bottom:10px}
.cta-panel p{color:#AFC0CB;margin:0;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);background:#050A10;padding:72px 0 26px;margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:38px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14.5px;color:var(--muted);max-width:340px}
.footer-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:6px}
.footer-meta span{
  font-size:12px;color:#A9BAC6;border:1px solid var(--line);
  border-radius:var(--r-pill);padding:6px 12px;background:var(--surface);
}
.footer-meta b{font-family:var(--mono);color:var(--primary)}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-col ul li{margin-bottom:11px}
.footer-col a{font-size:14px;color:var(--muted)}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  border-top:1px solid var(--line);margin-top:44px;padding-top:22px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}
.to-top{
  position:fixed;right:22px;bottom:24px;z-index:70;
  width:46px;height:46px;border-radius:14px;display:none;place-items:center;
  border:1px solid var(--line);background:rgba(12,22,34,.86);color:var(--primary);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);cursor:pointer;
}
.to-top.show{display:grid}
.to-top:hover{border-color:rgba(24,224,192,.5);transform:translateY(-2px)}

/* ---------- responsive ---------- */
@media screen and (max-width:1023px){
  .nav-links,.header-side .status-badge{display:none}
  .nav-toggle{display:flex}
  .header-inner{min-height:64px}
  .section{padding:72px 0}
  .status-grid{grid-template-columns:1fr}
  .voice-rail{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .step-item{grid-template-columns:84px 1fr;padding:22px}
  .step-num{font-size:34px}
}
@media screen and (max-width:767px){
  body{font-size:15.5px}
  .header-inner{min-height:56px;gap:12px}
  .brand-name{font-size:17.5px}
  .countdown-pill{display:none}
  .hero-band{padding:38px 0 44px}
  .hero-lead{font-size:15.5px}
  .section{padding:56px 0}
  .section-head{margin-bottom:30px}
  .step-item{grid-template-columns:1fr;gap:12px}
  .step-num{font-size:30px}
  .clip-card{flex:0 0 76%}
  .voice-rail{grid-template-columns:1fr}
  .cta-panel{padding:30px 24px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media screen and (max-width:520px){
  .grid-container{padding-left:16px;padding-right:16px}
  h1{font-size:27px}
  h2{font-size:22px}
  .pill{min-width:calc(50% - 6px);flex:1 1 auto}
  .btn{padding:13px 20px;font-size:14.5px}
  .accordion .accordion-title{font-size:16.5px;padding:17px 18px}
  .accordion .accordion-content{padding:0 18px 18px}
  .clip-card{flex:0 0 86%}
}

/* roulang page: category2 */
:root{
  --bg-base:#060B12;
  --bg-elev:#0C1622;
  --surface:rgba(255,255,255,.045);
  --surface-2:rgba(255,255,255,.07);
  --primary:#18E0C0;
  --primary-deep:#0FA891;
  --accent:#FFB443;
  --text:#EAF2F6;
  --muted:#8FA3B0;
  --line:rgba(255,255,255,.10);
  --danger:#FF6B6B;
  --glow-sm:0 0 0 1px rgba(24,224,192,.30);
  --glow-md:0 0 0 1px rgba(24,224,192,.38),0 10px 32px rgba(24,224,192,.16);
  --shadow-card:0 18px 46px rgba(0,0,0,.45);
  --r-sm:12px;
  --r-md:20px;
  --r-lg:28px;
  --r-pill:999px;
  --container:1240px;
  --mono:ui-monospace,"Roboto Mono","SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
body.is-locked{overflow:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary)}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.28;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit;font-size:inherit;border:0;background:none;cursor:pointer;color:inherit}
input,select,textarea{font-family:inherit}
:focus-visible{outline:3px solid rgba(24,224,192,.55);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.grid-container{max-width:var(--container)!important;padding-left:0;padding-right:0}
.grid-x{margin-left:-12px;margin-right:-12px}
.grid-x>.cell{padding-left:12px;padding-right:12px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--primary);font-weight:700;margin-bottom:16px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--primary);border-radius:2px}
.sec-head{max-width:760px;margin:0 auto 48px;text-align:center}
.sec-head--left{margin-left:0;text-align:left}
.sec-title{font-size:clamp(24px,2.6vw,34px)}
.sec-desc{color:var(--muted);margin-top:14px;font-size:15.5px;line-height:1.8}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;line-height:1;
  transition:transform .2s ease,box-shadow .25s ease,background .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-deep) 100%);
  color:#04211C;box-shadow:var(--glow-md);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);color:#04211C;box-shadow:0 0 0 1px rgba(24,224,192,.5),0 16px 40px rgba(24,224,192,.26)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{
  background:var(--surface);color:var(--text);
  border:1px solid var(--line);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.btn-ghost:hover{border-color:rgba(24,224,192,.45);background:var(--surface-2);transform:translateY(-2px)}
.btn-sm{padding:9px 18px;font-size:13.5px}
.btn-lg{padding:17px 40px;font-size:16.5px}
.btn-block{width:100%}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:var(--r-pill);
  font-size:11.5px;font-weight:700;letter-spacing:.06em;line-height:1.6;
}
.badge--primary{background:rgba(24,224,192,.12);color:var(--primary);border:1px solid rgba(24,224,192,.28)}
.badge--accent{background:rgba(255,180,67,.13);color:var(--accent);border:1px solid rgba(255,180,67,.3)}
.badge--muted{background:var(--surface);color:var(--muted);border:1px solid var(--line)}
.dot-live{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 3px rgba(24,224,192,.18)}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  height:68px;display:flex;align-items:center;
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(6,11,18,.78);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom-color:var(--line);
  box-shadow:0 12px 34px rgba(0,0,0,.4);
}
.header-inner{display:flex;align-items:center;gap:28px;width:100%}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--primary),var(--primary-deep));
  color:#04211C;font-size:12.5px;font-weight:800;font-family:var(--mono);
  box-shadow:var(--glow-sm);
}
.brand-name{font-size:19px;font-weight:800;letter-spacing:.01em}
.brand-name em{font-style:normal;color:var(--primary)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-link{
  padding:9px 15px;border-radius:var(--r-pill);
  font-size:14.5px;color:var(--muted);font-weight:500;
  border:1px solid transparent;position:relative;
  transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.nav-link:hover{color:var(--text);background:var(--surface)}
.nav-link.is-active{
  color:var(--primary);background:rgba(24,224,192,.09);
  border-color:rgba(24,224,192,.26);font-weight:700;
}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:-6px;transform:translateX(-50%);
  width:22px;height:2px;border-radius:2px;background:var(--primary);
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.countdown-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 13px;border-radius:var(--r-pill);
  background:var(--surface);border:1px solid var(--line);
  font-size:12px;color:var(--muted);
}
.countdown-pill b{font-family:var(--mono);color:var(--accent);font-size:13px;letter-spacing:.03em}
.status-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 13px;border-radius:var(--r-pill);
  background:rgba(24,224,192,.10);border:1px solid rgba(24,224,192,.26);
  font-size:12px;font-weight:700;color:var(--primary);
}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:var(--surface);
  place-items:center;
}
.nav-toggle span{display:block;width:17px;height:2px;background:var(--text);border-radius:2px;position:relative;transition:.25s}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:17px;height:2px;background:var(--text);border-radius:2px;transition:.25s;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-drawer{
  position:fixed;top:68px;left:0;right:0;z-index:55;
  background:rgba(8,14,22,.97);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid var(--line);
  padding:18px 24px 26px;
  transform:translateY(-12px);opacity:0;pointer-events:none;
  transition:opacity .25s ease,transform .25s ease;
}
.mobile-drawer.is-open{opacity:1;transform:translateY(0);pointer-events:auto}
.mobile-drawer a{
  display:block;padding:13px 4px;border-bottom:1px solid var(--line);
  font-size:15.5px;color:var(--muted);
}
.mobile-drawer a.is-active{color:var(--primary);font-weight:700}
.mobile-drawer .drawer-foot{display:flex;align-items:center;gap:12px;margin-top:18px}

/* ============ Hero ============ */
.hero-cat{
  position:relative;padding:150px 0 84px;overflow:hidden;
  background:#060B12;
}
.hero-cat::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(6,11,18,.86) 0%,rgba(6,11,18,.94) 55%,var(--bg-base) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  z-index:0;
}
.hero-cat::after{
  content:"";position:absolute;inset:0;z-index:0;opacity:.35;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(circle at 22% 18%,#000 0%,transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 22% 18%,#000 0%,transparent 72%);
}
.hero-cat .container{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:22px;flex-wrap:wrap}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:rgba(255,255,255,.25)}
.breadcrumb .now{color:var(--text)}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center}
.hero-title{font-size:clamp(30px,4.6vw,54px)}
.hero-title em{font-style:normal;color:var(--primary);text-shadow:0 0 28px rgba(24,224,192,.28)}
.hero-sub{margin-top:20px;max-width:560px;color:var(--muted);font-size:16.5px;line-height:1.85}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-pills{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.pill{
  display:flex;flex-direction:column;gap:2px;
  padding:11px 18px;border-radius:var(--r-sm);
  background:var(--surface);border:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.pill b{font-family:var(--mono);font-size:16px;color:var(--primary)}
.pill span{font-size:12px;color:var(--muted)}

.hero-panel{
  background:rgba(12,22,34,.72);
  border:1px solid rgba(255,255,255,.09);
  border-radius:var(--r-lg);
  padding:28px;
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  box-shadow:var(--shadow-card);
}
.panel-head{display:flex;align-items:center;gap:9px;font-size:14px;font-weight:700;margin-bottom:18px}
.progress{height:7px;border-radius:var(--r-pill);background:rgba(255,255,255,.08);overflow:hidden}
.progress span{display:block;height:100%;border-radius:var(--r-pill);background:linear-gradient(90deg,var(--primary-deep),var(--primary));box-shadow:0 0 16px rgba(24,224,192,.5)}
.panel-list{margin-top:22px;display:flex;flex-direction:column;gap:2px}
.panel-list li{
  display:flex;align-items:center;gap:12px;
  padding:11px 0;font-size:14.5px;color:var(--muted);
  border-bottom:1px dashed rgba(255,255,255,.08);
}
.panel-list li:last-child{border-bottom:0}
.panel-list li::before{
  content:"";width:16px;height:16px;border-radius:50%;flex-shrink:0;
  border:1.5px solid rgba(255,255,255,.22);
}
.panel-list li.is-done{color:var(--text)}
.panel-list li.is-done::before{background:var(--primary);border-color:var(--primary);box-shadow:0 0 0 3px rgba(24,224,192,.16)}
.panel-list li.is-now{color:var(--accent);font-weight:700}
.panel-list li.is-now::before{border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,180,67,.16)}
.panel-note{margin-top:18px;font-size:12.5px;color:var(--muted);line-height:1.7}

/* ============ 时间轴 ============ */
.timeline{position:relative;margin-top:8px}
.tl-item{
  display:grid;grid-template-columns:64px 1fr;gap:26px;
  position:relative;padding-bottom:26px;
}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:31px;top:56px;bottom:-2px;width:2px;
  background:linear-gradient(180deg,rgba(24,224,192,.45),rgba(24,224,192,.06));
}
.tl-item:last-child::before{display:none}
.tl-node{
  width:64px;height:64px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--bg-elev);border:1px solid rgba(24,224,192,.35);
  font-family:var(--mono);font-size:17px;font-weight:700;color:var(--primary);
  box-shadow:0 0 0 6px rgba(24,224,192,.05);
  z-index:1;
}
.tl-card{
  background:var(--bg-elev);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:24px 26px;
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.tl-card:hover{border-color:rgba(24,224,192,.4);transform:translateY(-3px);box-shadow:var(--shadow-card)}
.tl-top{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:10px}
.tl-step{font-size:20px;font-weight:800}
.tl-time{
  font-family:var(--mono);font-size:12px;color:var(--accent);
  background:rgba(255,180,67,.11);border:1px solid rgba(255,180,67,.26);
  padding:3px 10px;border-radius:var(--r-pill);
}
.tl-text{color:var(--muted);font-size:15px;line-height:1.8}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}

/* ============ 准备信息 ============ */
.prep-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:52px;align-items:center}
.prep-media{
  border-radius:var(--r-lg);overflow:hidden;position:relative;
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  aspect-ratio:4/3;
}
.prep-media img{width:100%;height:100%;object-fit:cover}
.prep-media .media-tag{
  position:absolute;left:16px;top:16px;
  background:rgba(6,11,18,.72);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.12);
  padding:6px 13px;border-radius:var(--r-pill);font-size:12px;color:var(--text);
}
.prep-list{display:flex;flex-direction:column;gap:14px;margin-top:26px}
.prep-list li{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-sm);padding:16px 18px;
  transition:border-color .25s ease,background .25s ease;
}
.prep-list li:hover{border-color:rgba(24,224,192,.36);background:var(--surface-2)}
.prep-ico{
  flex-shrink:0;width:32px;height:32px;border-radius:9px;
  display:grid;place-items:center;font-family:var(--mono);font-size:13px;
  background:rgba(24,224,192,.12);color:var(--primary);border:1px solid rgba(24,224,192,.24);
}
.prep-list h4{font-size:15.5px;margin-bottom:3px}
.prep-list p{font-size:13.5px;color:var(--muted);line-height:1.72}

/* ============ 卡点卡片 ============ */
.issue-card{
  height:100%;
  background:var(--bg-elev);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.issue-card:hover{transform:translateY(-4px);border-color:rgba(24,224,192,.4);box-shadow:var(--shadow-card)}
.issue-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0A121C}
.issue-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.issue-card:hover .issue-thumb img{transform:scale(1.05)}
.issue-thumb .badge{position:absolute;left:14px;top:14px}
.issue-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.issue-body h3{font-size:18px}
.issue-body p{color:var(--muted);font-size:14px;line-height:1.78}
.issue-point{
  margin-top:auto;padding-top:14px;border-top:1px dashed rgba(255,255,255,.09);
  font-size:13px;color:var(--primary);display:flex;align-items:center;gap:8px;
}

/* ============ 数据条 ============ */
.metrics{
  background:linear-gradient(180deg,rgba(12,22,34,.9),rgba(6,11,18,.9));
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.metric{text-align:center;padding:26px 12px}
.metric b{display:block;font-family:var(--mono);font-size:clamp(26px,3.4vw,38px);color:var(--primary);line-height:1.2}
.metric span{display:block;margin-top:8px;font-size:13.5px;color:var(--muted)}

/* ============ FAQ ============ */
.faq-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--bg-elev);border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;
  transition:border-color .25s ease;
}
.faq-item:hover{border-color:rgba(24,224,192,.28)}
.faq-item.is-open{border-color:rgba(24,224,192,.42)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  padding:20px 24px;font-size:17px;font-weight:700;color:var(--text);
}
.faq-q .idx{font-family:var(--mono);font-size:13px;color:var(--primary);flex-shrink:0}
.faq-arrow{
  margin-left:auto;flex-shrink:0;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);display:grid;place-items:center;
  color:var(--muted);transition:transform .3s ease,color .3s ease,border-color .3s ease;
}
.faq-arrow::before{content:"";width:7px;height:7px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg) translate(-1px,-1px)}
.faq-item.is-open .faq-arrow{transform:rotate(180deg);color:var(--primary);border-color:rgba(24,224,192,.45)}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .35s ease;
  background:rgba(255,255,255,.035);
}
.faq-a p{padding:0 24px 22px;color:var(--muted);font-size:14.5px;line-height:1.85}

/* ============ CTA ============ */
.cta-band{padding:0 0 96px}
.cta-panel{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);
  border:1px solid rgba(24,224,192,.26);
  background:linear-gradient(120deg,rgba(15,168,145,.20),rgba(12,22,34,.92) 58%);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  padding:52px 48px;
  display:grid;grid-template-columns:1.4fr .6fr;gap:32px;align-items:center;
  box-shadow:var(--shadow-card);
}
.cta-panel::after{
  content:"";position:absolute;right:-70px;top:-70px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(24,224,192,.22),transparent 68%);
}
.cta-panel h2{font-size:clamp(22px,2.4vw,30px);position:relative;z-index:1}
.cta-panel p{margin-top:12px;color:var(--muted);font-size:15px;max-width:640px;position:relative;z-index:1}
.cta-actions{display:flex;flex-direction:column;gap:12px;position:relative;z-index:1}

/* ============ 页脚 ============ */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(12,22,34,.6),rgba(6,11,18,1));
  padding:74px 0 30px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:44px}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{color:var(--muted);font-size:14px;line-height:1.8;max-width:360px}
.footer-meta{display:flex;flex-wrap:wrap;gap:18px;margin-top:20px}
.footer-meta span{font-size:12.5px;color:var(--muted)}
.footer-meta b{font-family:var(--mono);color:var(--primary)}
.footer-col h4{font-size:14px;letter-spacing:.06em;margin-bottom:16px;color:var(--text)}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:13.8px;color:var(--muted)}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12.5px;color:var(--muted);
}
.footer-bottom a{color:var(--muted);text-decoration:underline;text-underline-offset:3px}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:22px;bottom:22px;z-index:50;
  width:44px;height:44px;border-radius:50%;
  background:rgba(12,22,34,.9);border:1px solid rgba(24,224,192,.32);
  color:var(--primary);display:grid;place-items:center;
  opacity:0;pointer-events:none;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,box-shadow .25s ease;
}
.to-top.is-show{opacity:1;pointer-events:auto;transform:translateY(0)}
.to-top:hover{box-shadow:var(--glow-md)}
.to-top::before{content:"";width:9px;height:9px;border-left:2px solid currentColor;border-top:2px solid currentColor;transform:rotate(45deg) translate(1px,1px)}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .nav-links{display:none}
  .nav-toggle{display:grid}
  .status-badge{display:none}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .hero-cat{padding:126px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .prep-grid{grid-template-columns:1fr;gap:34px}
  .cta-panel{grid-template-columns:1fr;padding:40px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .section{padding:56px 0}
  .section--tight{padding:48px 0}
  .site-header{height:56px}
  .mobile-drawer{top:56px}
  .hero-cat{padding:104px 0 52px}
  .hero-sub{font-size:15.5px}
  .hero-cta .btn{flex:1;min-width:150px}
  .tl-item{grid-template-columns:48px 1fr;gap:16px}
  .tl-node{width:48px;height:48px;font-size:15px}
  .tl-item::before{left:23px;top:44px}
  .tl-card{padding:20px}
  .tl-step{font-size:18px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;gap:8px}
  .sec-head{margin-bottom:34px}
}
@media (max-width:519px){
  .brand-name{font-size:17px}
  .brand-mark{width:30px;height:30px;font-size:11px}
  .countdown-pill{display:none}
  .hero-pills{gap:8px}
  .pill{padding:9px 14px;flex:1 1 46%}
  .cta-panel{padding:32px 22px}
  .cta-actions .btn{width:100%}
  .faq-q{font-size:15.5px;padding:17px 18px}
  .faq-a p{padding:0 18px 18px}
}

/* roulang page: category3 */
:root{
  --bg-base:#060B12;
  --bg-elev:#0C1622;
  --surface:rgba(255,255,255,.045);
  --surface-2:rgba(255,255,255,.07);
  --primary:#18E0C0;
  --primary-deep:#0FA891;
  --accent:#FFB443;
  --text:#EAF2F6;
  --muted:#8FA3B0;
  --line:rgba(255,255,255,.10);
  --danger:#FF6B6B;
  --glow-sm:0 0 0 1px rgba(24,224,192,.30);
  --glow-md:0 0 0 1px rgba(24,224,192,.38),0 10px 32px rgba(24,224,192,.16);
  --shadow-card:0 18px 46px rgba(0,0,0,.45);
  --r-sm:12px;
  --r-md:20px;
  --r-lg:28px;
  --r-pill:999px;
  --container:1240px;
  --narrow:760px;
  --font-head:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,"Roboto Mono","SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  padding:0;
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg-base);
  background-image:
    radial-gradient(900px 520px at 12% -8%,rgba(24,224,192,.13),transparent 62%),
    radial-gradient(760px 460px at 92% 4%,rgba(255,180,67,.09),transparent 60%),
    linear-gradient(180deg,#060B12 0%,#070E16 42%,#060B12 100%);
  background-attachment:fixed;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:#5BF2DA}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid rgba(24,224,192,.55);outline-offset:2px;border-radius:6px}
h1,h2,h3,h4{font-family:var(--font-head);font-weight:800;margin:0;letter-spacing:.2px;color:var(--text)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea,select{font-family:inherit;font-size:16px}
::selection{background:rgba(24,224,192,.28);color:#fff}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.grid-container{max-width:var(--container)!important;padding-left:24px;padding-right:24px}
.section{padding:96px 0}
.section-tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--primary);background:rgba(24,224,192,.08);
  border:1px solid rgba(24,224,192,.24);border-radius:var(--r-pill);
  padding:6px 14px;margin-bottom:18px;
}
h2.h-section{font-size:clamp(24px,2.6vw,34px);line-height:1.32}
.section-sub{margin-top:14px;color:var(--muted);font-size:16px;line-height:1.8}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(6,11,18,.72);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;
  transition:background .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.site-header.is-scrolled{
  background:rgba(7,13,20,.9);
  border-bottom-color:var(--line);
  box-shadow:0 14px 34px rgba(0,0,0,.42);
}
.header-inner{
  display:flex;align-items:center;gap:28px;
  height:68px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-mono);font-size:13px;font-weight:700;letter-spacing:.02em;
  color:#03110F;
  background:linear-gradient(140deg,var(--primary) 0%,var(--primary-deep) 100%);
  box-shadow:var(--glow-sm);
}
.brand-name{font-family:var(--font-head);font-size:19px;font-weight:800;color:var(--text);letter-spacing:.5px}
.brand-name em{font-style:normal;color:var(--primary)}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px}
.nav-link{
  position:relative;
  display:inline-block;
  padding:9px 14px;border-radius:var(--r-pill);
  font-size:15px;color:#B8C7D2;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--text);background:var(--surface)}
.nav-link.is-active{
  color:var(--primary);
  background:rgba(24,224,192,.10);
  box-shadow:inset 0 0 0 1px rgba(24,224,192,.28);
}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:-2px;transform:translateX(-50%);
  width:22px;height:2px;border-radius:2px;background:var(--primary);
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.countdown{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:var(--r-pill);
  background:var(--surface);border:1px solid var(--line);
  font-size:12px;color:var(--muted);
}
.countdown b{font-family:var(--font-mono);font-size:14px;color:var(--accent);letter-spacing:.04em}
.status-badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 13px;border-radius:var(--r-pill);
  font-size:12px;color:#9FE9DC;
  background:rgba(24,224,192,.08);border:1px solid rgba(24,224,192,.22);
}
.status-badge i{width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px rgba(24,224,192,.16);animation:pulse 2.2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.42}}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:var(--surface);
  flex-direction:column;justify-content:center;align-items:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform .24s ease,opacity .24s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:rgba(8,14,22,.98);
  padding:18px 24px 26px;
}
.mobile-drawer.is-open{display:block}
.mobile-drawer .nav-link{display:block;padding:13px 14px;font-size:16px;border-bottom:1px solid rgba(255,255,255,.06)}
.mobile-drawer .drawer-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:18px;align-items:center}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;letter-spacing:.2px;
  border:1px solid transparent;
  transition:transform .18s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.btn-primary{background:linear-gradient(140deg,var(--primary) 0%,var(--primary-deep) 100%);color:#04140F;box-shadow:var(--glow-md)}
.btn-primary:hover{color:#04140F;transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(24,224,192,.48),0 16px 40px rgba(24,224,192,.26)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:var(--surface);border-color:var(--line);color:var(--text);backdrop-filter:blur(14px)}
.btn-ghost:hover{color:var(--text);border-color:rgba(24,224,192,.42);background:var(--surface-2);transform:translateY(-2px)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-lg{padding:16px 34px;font-size:16px}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;pointer-events:none}

/* ============ hero ============ */
.page-hero{
  position:relative;
  padding:76px 0 84px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.30;filter:saturate(.9);
}
.hero-veil{
  position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(6,11,18,.62) 0%,rgba(6,11,18,.88) 62%,var(--bg-base) 100%),
    radial-gradient(680px 340px at 82% 10%,rgba(24,224,192,.18),transparent 66%);
}
.hero-inner{position:relative;z-index:2;max-width:900px}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);margin-bottom:22px;flex-wrap:wrap}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb span.sep{opacity:.5}
.breadcrumb span.now{color:var(--primary)}
.page-hero h1{
  font-size:clamp(30px,4.6vw,54px);
  line-height:1.18;
  margin-bottom:20px;
  letter-spacing:.4px;
}
.page-hero h1 em{font-style:normal;color:var(--primary)}
.hero-lead{font-size:17px;color:#C3D2DC;max-width:640px;line-height:1.85}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.stat-pills{display:flex;flex-wrap:wrap;gap:14px;margin-top:40px}
.pill{
  flex:1 1 180px;min-width:160px;
  padding:16px 20px;border-radius:var(--r-md);
  background:rgba(12,22,34,.72);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.pill b{display:block;font-family:var(--font-mono);font-size:24px;color:var(--primary);letter-spacing:.02em}
.pill span{display:block;font-size:13px;color:var(--muted);margin-top:4px}

/* ============ compare ============ */
.compare{
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  background:linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,0));
  box-shadow:var(--shadow-card);
}
.compare-head,.compare-row{display:grid;grid-template-columns:minmax(150px,.78fr) 1fr 1fr}
.compare-head{
  background:rgba(255,255,255,.045);
  border-bottom:1px solid var(--line);
}
.compare-row{border-bottom:1px solid var(--line);transition:background .22s ease}
.compare-row:last-child{border-bottom:0}
.compare-row:hover{background:rgba(24,224,192,.035)}
.compare-label{
  padding:20px 22px;font-size:14px;color:var(--muted);
  background:rgba(255,255,255,.02);
  border-right:1px solid var(--line);
}
.compare-col{
  padding:20px 22px;font-size:16px;font-weight:800;font-family:var(--font-head);
  display:flex;align-items:center;gap:9px;
}
.compare-col.is-a{color:var(--primary)}
.compare-col.is-b{color:var(--accent)}
.compare-col .dot{width:8px;height:8px;border-radius:50%;background:currentColor;box-shadow:0 0 0 4px rgba(255,255,255,.05)}
.compare-cell{padding:20px 22px;font-size:15px;line-height:1.75;color:#C6D4DE;border-right:1px solid rgba(255,255,255,.06)}
.compare-cell:last-child{border-right:0}
.cell-tag{display:none;font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-bottom:6px}
.compare-note{margin-top:18px;font-size:13px;color:var(--muted)}

/* ============ scenario cards ============ */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.scene-card{
  position:relative;
  background:var(--bg-elev);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:26px 24px 24px;
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.scene-card:hover{transform:translateY(-4px);border-color:rgba(24,224,192,.4);box-shadow:var(--shadow-card)}
.scene-card .scene-no{
  font-family:var(--font-mono);font-size:12px;color:var(--primary);
  letter-spacing:.14em;margin-bottom:14px;display:block;
}
.scene-card h3{font-size:20px;margin-bottom:12px}
.scene-card p{font-size:15px;color:var(--muted);line-height:1.8}
.scene-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.tag{
  display:inline-flex;align-items:center;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.02em;
}
.tag-green{background:rgba(24,224,192,.10);color:#7BEDD9;border:1px solid rgba(24,224,192,.26)}
.tag-amber{background:rgba(255,180,67,.10);color:#FFCE86;border:1px solid rgba(255,180,67,.26)}
.tag-grey{background:rgba(255,255,255,.05);color:var(--muted);border:1px solid var(--line)}

/* ============ guard block ============ */
.guard-wrap{
  display:grid;grid-template-columns:1.05fr .95fr;gap:46px;align-items:center;
}
.guard-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-card);
}
.guard-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.guard-media .media-badge{
  position:absolute;left:18px;top:18px;
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:var(--r-pill);
  font-size:12px;color:#04140F;font-weight:700;
  background:linear-gradient(140deg,var(--primary),var(--primary-deep));
}
.guard-list{margin-top:26px;display:grid;gap:16px}
.guard-list li{
  display:grid;grid-template-columns:38px 1fr;gap:14px;
  padding:16px 18px;border-radius:var(--r-md);
  background:var(--surface);border:1px solid var(--line);
  transition:border-color .22s ease,background .22s ease;
}
.guard-list li:hover{border-color:rgba(24,224,192,.34);background:var(--surface-2)}
.guard-list .num{
  font-family:var(--font-mono);font-size:13px;color:var(--primary);
  width:38px;height:38px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(24,224,192,.08);border:1px solid rgba(24,224,192,.22);
}
.guard-list h4{font-size:16px;margin-bottom:6px}
.guard-list p{font-size:14px;color:var(--muted);line-height:1.75}

/* ============ faq ============ */
.faq-list{display:grid;gap:14px;max-width:920px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-md);
  background:var(--bg-elev);overflow:hidden;
  transition:border-color .22s ease;
}
.faq-item[open]{border-color:rgba(24,224,192,.34)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;font-size:18px;font-weight:700;font-family:var(--font-head);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-arrow{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);position:relative;
  transition:transform .26s ease,border-color .26s ease,background .26s ease;
}
.faq-arrow::before,.faq-arrow::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--primary);
  transform:translate(-50%,-50%);border-radius:2px;
}
.faq-arrow::before{width:11px;height:2px}
.faq-arrow::after{width:2px;height:11px;transition:opacity .24s ease}
.faq-item[open] .faq-arrow{transform:rotate(180deg);background:rgba(24,224,192,.12);border-color:rgba(24,224,192,.34)}
.faq-item[open] .faq-arrow::after{opacity:0}
.faq-body{padding:0 24px 22px;font-size:15px;color:#BCCBD6;line-height:1.85}

/* ============ cta ============ */
.cta-band{
  border:1px solid rgba(24,224,192,.26);
  border-radius:var(--r-lg);
  padding:48px 44px;
  background:
    radial-gradient(620px 260px at 8% 0%,rgba(24,224,192,.16),transparent 62%),
    linear-gradient(160deg,rgba(12,22,34,.94),rgba(8,14,22,.96));
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  box-shadow:var(--shadow-card);
  display:grid;grid-template-columns:1.3fr .7fr;gap:34px;align-items:center;
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:14px}
.cta-band p{color:var(--muted);font-size:15px;line-height:1.85}
.cta-actions{display:flex;flex-direction:column;gap:14px}
.cta-actions .btn{width:100%}

/* ============ footer ============ */
.site-footer{
  margin-top:96px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(8,14,22,.72),rgba(5,9,15,.98));
  padding:64px 0 26px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.85;max-width:340px}
.footer-meta{display:flex;flex-wrap:wrap;gap:16px;margin-top:20px;font-size:13px;color:var(--muted)}
.footer-meta b{font-family:var(--font-mono);color:var(--primary)}
.footer-col h4{font-size:15px;margin-bottom:16px;letter-spacing:.3px}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:14px;color:var(--muted)}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--muted);
}
.footer-bottom a{color:var(--muted)}
.footer-bottom a:hover{color:var(--primary)}

.back-top{
  position:fixed;right:22px;bottom:24px;z-index:140;
  width:46px;height:46px;border-radius:50%;
  display:none;align-items:center;justify-content:center;
  background:rgba(12,22,34,.9);border:1px solid rgba(24,224,192,.32);
  color:var(--primary);font-size:18px;backdrop-filter:blur(12px);
  box-shadow:var(--glow-sm);transition:transform .2s ease;
}
.back-top.is-show{display:flex}
.back-top:hover{transform:translateY(-3px)}

/* ============ responsive ============ */
@media (max-width:1023px){
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .header-actions .status-badge{display:none}
  .guard-wrap{grid-template-columns:1fr;gap:34px}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .cta-band{grid-template-columns:1fr;padding:40px 32px}
  .section{padding:72px 0}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .grid-container{padding-left:18px;padding-right:18px}
  .header-inner{height:56px;gap:14px}
  .brand-name{font-size:17px}
  .brand-mark{width:32px;height:32px;font-size:12px}
  .countdown{padding:6px 11px;font-size:11px}
  .countdown b{font-size:13px}
  .page-hero{padding:52px 0 60px}
  .hero-lead{font-size:15.5px}
  .hero-cta{gap:12px}
  .hero-cta .btn{flex:1 1 100%}
  .stat-pills{gap:12px;margin-top:30px}
  .pill{flex:1 1 100%}
  .section{padding:56px 0}
  .section-tight{padding:44px 0}
  .section-head{margin-bottom:30px}
  .compare{border-radius:var(--r-md);border:0;background:none;box-shadow:none}
  .compare-head{display:none}
  .compare-row{display:block;border:1px solid var(--line);border-radius:var(--r-md);background:var(--bg-elev);padding:18px;margin-bottom:14px}
  .compare-row:hover{background:var(--bg-elev)}
  .compare-label{padding:0 0 12px;background:none;border-right:0;font-size:16px;font-weight:800;color:var(--text);font-family:var(--font-head)}
  .compare-cell{padding:14px 16px;margin-bottom:10px;border:1px solid var(--line);border-radius:var(--r-sm);background:rgba(255,255,255,.03);border-right:1px solid var(--line)}
  .compare-cell:last-child{margin-bottom:0}
  .cell-tag{display:block}
  .scene-grid{grid-template-columns:1fr}
  .guard-list li{grid-template-columns:32px 1fr;gap:12px;padding:14px}
  .guard-list .num{width:32px;height:32px;font-size:12px}
  .faq-item summary{padding:17px 18px;font-size:16px}
  .faq-body{padding:0 18px 18px}
  .cta-band{padding:32px 22px;border-radius:var(--r-md)}
  .site-footer{margin-top:56px;padding:48px 0 22px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:519px){
  .page-hero h1{font-size:28px}
  .btn{padding:12px 22px;font-size:14.5px}
  .btn-lg{padding:14px 26px;font-size:15px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important}
}

/* roulang page: category4 */
:root{
  --bg-base:#060B12;
  --bg-elev:#0C1622;
  --surface:rgba(255,255,255,.045);
  --surface-2:rgba(255,255,255,.07);
  --primary:#18E0C0;
  --primary-deep:#0FA891;
  --accent:#FFB443;
  --text:#EAF2F6;
  --muted:#8FA3B0;
  --line:rgba(255,255,255,.10);
  --danger:#FF6B6B;
  --glow-sm:0 0 0 1px rgba(24,224,192,.30);
  --glow-md:0 0 0 1px rgba(24,224,192,.38), 0 10px 32px rgba(24,224,192,.16);
  --shadow-card:0 18px 46px rgba(0,0,0,.45);
  --r-sm:12px;
  --r-md:20px;
  --r-lg:28px;
  --r-pill:999px;
  --mono:ui-monospace,"Roboto Mono","SFMono-Regular",Menlo,Consolas,monospace;
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);
  background-size:64px 64px;
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--text)}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em;padding:0}
button{font:inherit;cursor:pointer;border:0;background:none}
:focus-visible{outline:3px solid rgba(24,224,192,.65);outline-offset:2px;border-radius:6px}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.3;letter-spacing:.01em}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;position:relative;z-index:1}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(6,11,18,.55);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header.is-scrolled{
  background:rgba(6,11,18,.88);
  border-bottom-color:var(--line);
  box-shadow:0 12px 32px rgba(0,0,0,.42);
}
.nav-wrap{display:flex;align-items:center;gap:16px;height:68px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);flex:0 0 auto}
.brand-mark{
  display:grid;place-items:center;width:36px;height:36px;border-radius:12px;
  background:linear-gradient(140deg,var(--primary),var(--primary-deep));
  color:#04231E;font-weight:800;font-size:13px;letter-spacing:.04em;
  box-shadow:var(--glow-md);
}
.brand-name{font-weight:800;font-size:19px;letter-spacing:.01em}
.brand-name em{font-style:normal;color:var(--primary)}
.nav-links{display:flex;align-items:center;gap:2px;margin:0 auto}
.nav-link{
  position:relative;display:block;padding:8px 13px;border-radius:var(--r-pill);
  color:var(--muted);font-size:15px;font-weight:500;white-space:nowrap;
  transition:color .22s ease,background .22s ease,box-shadow .22s ease;
}
.nav-link:hover{color:var(--text);background:var(--surface)}
.nav-link.is-active{
  color:var(--text);background:var(--surface-2);
  box-shadow:inset 0 0 0 1px var(--line);
}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:-9px;transform:translateX(-50%);
  width:22px;height:2px;border-radius:2px;background:var(--primary);box-shadow:0 0 12px rgba(24,224,192,.8);
}
.nav-extra{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.countdown{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 13px;border-radius:var(--r-pill);
  background:var(--surface);border:1px solid var(--line);
  font-family:var(--mono);font-size:12.5px;color:var(--accent);letter-spacing:.02em;
}
.countdown span.lbl{font-family:var(--font);color:var(--muted);letter-spacing:0}
.status-pill{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 12px;border-radius:var(--r-pill);
  background:rgba(24,224,192,.10);border:1px solid rgba(24,224,192,.28);
  color:var(--primary);font-size:12.5px;
}
.status-pill i{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary);animation:pulse 2.2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;
  background:var(--surface);border:1px solid var(--line);color:var(--text);font-size:16px;
}
.nav-drawer-extra{display:none}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-pill);
  font-weight:700;font-size:15px;line-height:1;
  border:1px solid transparent;
  transition:transform .22s ease,box-shadow .22s ease,filter .22s ease,background .22s ease,color .22s ease;
}
.btn i{font-size:13px}
.btn-primary{background:var(--primary);color:#04231E;box-shadow:var(--glow-md)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(24,224,192,.5),0 14px 38px rgba(24,224,192,.24);color:#04231E}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:var(--surface);border-color:var(--line);color:var(--text)}
.btn-ghost:hover{transform:translateY(-2px);background:var(--surface-2);border-color:rgba(24,224,192,.42);color:var(--text)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{padding:9px 16px;font-size:13.5px}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;pointer-events:none}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:56px 0 68px;
  background-image:linear-gradient(180deg,rgba(6,11,18,.76) 0%,rgba(6,11,18,.93) 62%,var(--bg-base) 100%),url(/assets/images/backpic/back-2.webp);
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.hero-inner{display:grid;grid-template-columns:1.45fr .82fr;gap:48px;align-items:center}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:20px}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--primary)}
.crumbs i{font-size:9px;opacity:.6}
.crumbs .here{color:var(--primary)}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--surface);border:1px solid var(--line);
  font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--primary);
  margin-bottom:20px;
}
.hero h1{
  font-size:clamp(30px,4.6vw,54px);
  font-weight:800;
  line-height:1.18;
  margin-bottom:18px;
}
.hero h1 em{font-style:normal;color:var(--primary);text-shadow:0 0 30px rgba(24,224,192,.35)}
.hero-sub{font-size:17px;color:var(--muted);max-width:600px;line-height:1.8;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px}
.stat{
  min-width:132px;padding:12px 16px;border-radius:var(--r-sm);
  background:var(--surface);border:1px solid var(--line);
  backdrop-filter:blur(14px);
}
.stat b{display:block;font-family:var(--mono);font-size:19px;color:var(--primary);line-height:1.3}
.stat span{font-size:12.5px;color:var(--muted)}
.hero-card{
  position:relative;border-radius:24px;overflow:hidden;
  border:1px solid var(--line);background:var(--bg-elev);box-shadow:var(--shadow-card);
  aspect-ratio:9/16;max-width:340px;margin-left:auto;
}
.hero-card img{width:100%;height:100%;object-fit:cover}
.hero-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,11,18,.05) 30%,rgba(6,11,18,.86) 100%);
}
.hero-card .float-badge{
  position:absolute;top:16px;left:16px;z-index:2;
  padding:6px 12px;border-radius:var(--r-pill);
  background:rgba(6,11,18,.7);border:1px solid rgba(24,224,192,.3);
  color:var(--primary);font-family:var(--mono);font-size:12px;
  backdrop-filter:blur(12px);
}
.hero-card .float-caption{
  position:absolute;left:16px;right:16px;bottom:16px;z-index:2;
  font-size:14px;color:var(--text);line-height:1.6;
}
.hero-card .float-caption small{display:block;color:var(--muted);font-size:12.5px;margin-top:4px}

/* ---------- 区块通用 ---------- */
.section{padding:76px 0}
.section-alt{background:linear-gradient(180deg,rgba(12,22,34,.7),rgba(6,11,18,0));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:40px}
.section-head h2{font-size:clamp(24px,2.6vw,34px);margin-bottom:14px}
.section-head h2 em{font-style:normal;color:var(--primary)}
.section-head p{color:var(--muted);margin:0;font-size:15.5px}
.eyebrow{
  display:inline-block;font-family:var(--mono);font-size:12px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--primary);margin-bottom:12px;
}

/* ---------- 词条布局 ---------- */
.entry-layout{display:grid;grid-template-columns:264px 1fr;gap:40px;align-items:start}
.anchor-nav{
  position:sticky;top:92px;
  padding:20px 18px;border-radius:var(--r-md);
  background:var(--bg-elev);border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.anchor-nav h2{
  font-size:12px;font-family:var(--mono);letter-spacing:.12em;text-transform:uppercase;
  color:var(--muted);font-weight:600;margin-bottom:14px;
}
.anchor-nav ol{list-style:none;margin:0;padding:0;counter-reset:anchor}
.anchor-nav li{counter-increment:anchor;margin-bottom:2px}
.anchor-nav a{
  display:flex;gap:10px;align-items:baseline;
  padding:9px 10px;border-radius:var(--r-sm);
  color:var(--muted);font-size:14.5px;line-height:1.5;
  transition:background .2s ease,color .2s ease;
}
.anchor-nav a::before{
  content:counter(anchor,decimal-leading-zero);
  font-family:var(--mono);font-size:11.5px;color:rgba(24,224,192,.55);flex:0 0 auto;
}
.anchor-nav a:hover{background:var(--surface);color:var(--text)}
.anchor-nav a.is-current{background:var(--surface-2);color:var(--text);box-shadow:inset 0 0 0 1px var(--line)}
.anchor-note{
  margin-top:16px;padding-top:16px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--muted);line-height:1.7;
}
.entry-body{min-width:0}
.entry-card{
  background:var(--bg-elev);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:28px 30px;
  margin-bottom:18px;
  scroll-margin-top:96px;
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.entry-card:hover{border-color:rgba(24,224,192,.4);transform:translateY(-2px);box-shadow:var(--shadow-card)}
.entry-head{display:flex;align-items:flex-start;gap:16px;margin-bottom:14px}
.entry-idx{
  flex:0 0 auto;font-family:var(--mono);font-size:13px;color:var(--primary);
  padding:5px 10px;border-radius:var(--r-pill);
  background:rgba(24,224,192,.10);border:1px solid rgba(24,224,192,.26);line-height:1.4;
}
.entry-head h2{font-size:21px;line-height:1.4}
.entry-head .term-en{display:block;font-family:var(--mono);font-size:11.5px;color:var(--muted);letter-spacing:.08em;margin-top:4px}
.entry-lead{color:var(--text);font-size:15.5px;margin-bottom:14px}
.entry-card p{color:var(--muted);font-size:15px}
.entry-list{list-style:none;margin:0 0 4px;padding:0}
.entry-list li{position:relative;padding-left:22px;margin-bottom:9px;color:var(--muted);font-size:15px}
.entry-list li::before{
  content:"";position:absolute;left:4px;top:11px;width:7px;height:7px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 10px rgba(24,224,192,.7);
}
.entry-list li b{color:var(--text);font-weight:700}
.steps{list-style:none;counter-reset:step;margin:0;padding:0}
.steps li{
  counter-increment:step;position:relative;padding-left:44px;margin-bottom:14px;
  color:var(--muted);font-size:15px;
}
.steps li::before{
  content:counter(step,decimal-leading-zero);
  position:absolute;left:0;top:1px;
  display:grid;place-items:center;width:30px;height:30px;border-radius:10px;
  background:var(--surface-2);border:1px solid var(--line);
  font-family:var(--mono);font-size:12px;color:var(--primary);
}
.steps li b{color:var(--text);font-weight:700}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:12.5px;background:var(--surface);border:1px solid var(--line);color:var(--muted);
}
.tag.is-green{color:var(--primary);border-color:rgba(24,224,192,.3);background:rgba(24,224,192,.08)}
.tag.is-amber{color:var(--accent);border-color:rgba(255,180,67,.3);background:rgba(255,180,67,.08)}
.mini-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:6px}
.mini-card{
  padding:16px 18px;border-radius:var(--r-sm);
  background:var(--surface);border:1px solid var(--line);
  transition:border-color .22s ease,background .22s ease;
}
.mini-card:hover{border-color:rgba(24,224,192,.4);background:var(--surface-2)}
.mini-card h3{font-size:15.5px;margin-bottom:6px}
.mini-card p{font-size:13.5px;color:var(--muted);margin:0;line-height:1.65}
.entry-figure{
  margin:20px 0 8px;border-radius:var(--r-md);overflow:hidden;
  border:1px solid var(--line);background:var(--bg-elev);
}
.entry-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.entry-figure figcaption{padding:10px 16px;font-size:12.5px;color:var(--muted);border-top:1px solid var(--line)}
.callout{
  margin-top:16px;padding:14px 18px;border-radius:var(--r-sm);
  background:rgba(255,180,67,.07);border:1px solid rgba(255,180,67,.24);
  color:var(--muted);font-size:14px;line-height:1.7;
}
.callout b{color:var(--accent)}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:12px}
.faq details{
  background:var(--bg-elev);border:1px solid var(--line);border-radius:var(--r-md);
  padding:0;overflow:hidden;transition:border-color .25s ease;
}
.faq details[open]{border-color:rgba(24,224,192,.4);background:linear-gradient(180deg,rgba(24,224,192,.05),rgba(12,22,34,.4))}
.faq summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;cursor:pointer;list-style:none;
  font-size:17px;font-weight:700;color:var(--text);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:12px;color:var(--primary);transition:transform .28s ease;flex:0 0 auto;
}
.faq details[open] summary::after{transform:rotate(180deg)}
.faq .faq-body{padding:0 24px 22px;color:var(--muted);font-size:15px;line-height:1.8}

/* ---------- CTA ---------- */
.cta-band{padding:24px 0 88px}
.cta-panel{
  display:grid;grid-template-columns:1.6fr .9fr;gap:32px;align-items:center;
  padding:40px;
  border-radius:var(--r-lg);
  background:linear-gradient(135deg,rgba(24,224,192,.10),rgba(12,22,34,.72) 55%);
  border:1px solid rgba(24,224,192,.24);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  box-shadow:var(--shadow-card);
}
.cta-panel h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:12px}
.cta-panel p{color:var(--muted);margin:0;font-size:15.5px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}
.cta-facts{display:flex;flex-wrap:wrap;gap:18px;margin-top:18px;font-size:13px;color:var(--muted)}
.cta-facts b{font-family:var(--mono);color:var(--primary)}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(12,22,34,.55),rgba(6,11,18,1));
  padding:64px 0 26px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{color:var(--muted);font-size:14.5px;max-width:340px;margin-bottom:18px}
.footer-meta{display:flex;flex-wrap:wrap;gap:10px}
.footer-meta span{
  padding:6px 12px;border-radius:var(--r-pill);background:var(--surface);
  border:1px solid var(--line);font-size:12.5px;color:var(--muted);
}
.footer-meta b{font-family:var(--mono);color:var(--primary)}
.footer-col h4{
  font-size:12px;font-family:var(--mono);letter-spacing:.12em;text-transform:uppercase;
  color:var(--muted);font-weight:600;margin-bottom:16px;
}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{margin-bottom:10px}
.footer-col a{color:var(--text);font-size:14.5px;opacity:.82}
.footer-col a:hover{color:var(--primary);opacity:1}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);
}
.footer-bottom a{color:var(--muted)}
.footer-bottom a:hover{color:var(--primary)}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:22px;bottom:22px;z-index:70;
  display:grid;place-items:center;width:44px;height:44px;border-radius:50%;
  background:var(--bg-elev);border:1px solid var(--line);color:var(--primary);
  box-shadow:var(--shadow-card);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{border-color:rgba(24,224,192,.5);color:var(--text)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .nav-link{padding:8px 10px;font-size:14.5px}
  .countdown{display:none}
}
@media (max-width:1023px){
  .nav-wrap{height:60px}
  .nav-toggle{display:inline-flex;margin-left:auto;order:3}
  .nav-extra{display:none}
  .nav-links{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    margin:0;padding:14px 20px 20px;
    background:rgba(6,11,18,.97);
    border-bottom:1px solid var(--line);
    box-shadow:0 24px 40px rgba(0,0,0,.5);
    display:none;
  }
  .nav-links.is-open{display:flex}
  .nav-link{padding:12px 14px;border-radius:var(--r-sm);font-size:15.5px}
  .nav-link.is-active::after{display:none}
  .nav-drawer-extra{display:flex;flex-direction:column;gap:12px;margin-top:12px;padding-top:16px;border-top:1px solid var(--line)}
  .nav-drawer-extra .countdown{display:inline-flex;justify-content:center}
  .hero-inner{grid-template-columns:1fr;gap:34px}
  .hero-card{margin:0 auto;max-width:300px}
  .entry-layout{grid-template-columns:1fr;gap:24px}
  .anchor-nav{position:static}
  .anchor-nav ol{display:flex;gap:8px;overflow-x:auto;padding-bottom:6px;scrollbar-width:none}
  .anchor-nav ol::-webkit-scrollbar{display:none}
  .anchor-nav li{margin:0;flex:0 0 auto}
  .anchor-nav a{white-space:nowrap;background:var(--surface);border:1px solid var(--line)}
  .anchor-note{display:none}
  .cta-panel{grid-template-columns:1fr;padding:30px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .section{padding:56px 0}
  .hero{padding:40px 0 50px}
  .container{padding:0 18px}
  .entry-card{padding:22px 20px}
  .mini-grid{grid-template-columns:1fr}
  .faq summary{padding:16px 18px;font-size:15.5px}
  .faq .faq-body{padding:0 18px 18px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column}
  .stat{flex:1 1 132px}
}
@media (max-width:520px){
  .hero h1{font-size:29px}
  .hero-actions .btn{width:100%}
  .brand-name{font-size:17px}
  .entry-head{flex-direction:column;gap:10px}
  .to-top{right:14px;bottom:14px}
}