/* roulang page: index */
:root{
  --bg-deep:#0B1420;
  --bg-soft:#111E2E;
  --primary:#00C8FF;
  --accent:#FF8A00;
  --gold:#F5C842;
  --success:#2CE5A6;
  --danger:#FF4D6A;
  --text-bright:#F2F7FD;
  --text:#A7B6CB;
  --muted:#64748B;
  --line:rgba(255,255,255,.10);
  --glass:rgba(255,255,255,.06);
  --radius-lg:22px;
  --radius-md:14px;
  --radius-sm:10px;
  --max-width:1200px;
  --gradient-btn:linear-gradient(135deg, #00C8FF 0%, #007BFF 100%);
  --shadow-glow:0 0 20px rgba(0,229,255,.35);
  --font-stack:"PingFang SC","HarmonicOS Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,sans-serif;
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg-deep);
  color:var(--text);
  font-family:var(--font-stack);
  font-size:16px;
  line-height:1.8;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;border:none;background:none;cursor:pointer;}
input{font-family:inherit;}
.container{max-width:var(--max-width);margin:0 auto;padding-left:20px;padding-right:20px;}
.section{padding:92px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:42px;}
.section-head--left{max-width:720px;}
.eyebrow{display:inline-flex;align-items:center;gap:10px;color:var(--primary);font-size:13px;font-weight:700;letter-spacing:2px;text-transform:uppercase;margin-bottom:12px;}
.section-line{width:42px;height:3px;background:linear-gradient(90deg,var(--primary),transparent);border-radius:99px;margin-top:14px;}
.section-title{font-size:clamp(28px,4vw,40px);line-height:1.3;color:var(--text-bright);font-weight:800;letter-spacing:-.5px;}
.section-sub{color:var(--text);font-size:16px;margin-top:10px;max-width:680px;}

.glass-card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 24px;
  border-radius:999px;
  font-size:15px;
  font-weight:700;
  letter-spacing:.3px;
  white-space:nowrap;
  transition:all .3s ease;
  border:1px solid transparent;
}
.btn:focus-visible{outline:3px solid rgba(0,200,255,.6);outline-offset:3px;}
.btn-primary{
  background:var(--gradient-btn);
  color:#fff;
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 0 34px rgba(0,229,255,.58);
  filter:brightness(1.08);
}
.btn-primary:active{transform:scale(.98);filter:brightness(.95);}
.btn-outline{
  border:1px solid rgba(0,200,255,.6);
  color:var(--primary);
  background:rgba(0,200,255,.08);
  box-shadow:0 0 12px rgba(0,200,255,.12);
}
.btn-outline:hover{
  background:rgba(0,200,255,.16);
  box-shadow:0 0 22px rgba(0,200,255,.35);
  transform:translateY(-2px);
}
.btn-ghost{
  border:1px solid rgba(255,255,255,.2);
  color:var(--text-bright);
  background:rgba(255,255,255,.04);
}
.btn-ghost:hover{
  border-color:var(--primary);
  color:var(--primary);
  background:rgba(0,200,255,.08);
}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-lg{height:52px;padding:0 34px;font-size:16px;}

.site-header{
  position:sticky;top:0;z-index:999;
  background:rgba(11,20,32,.88);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(0,200,255,.18);
  box-shadow:0 8px 28px rgba(0,0,0,.3);
}
.header-flex{display:flex;align-items:center;justify-content:space-between;height:74px;}
.logo{display:inline-flex;align-items:center;gap:12px;flex-shrink:0;}
.logo-mark{
  width:42px;height:42px;border-radius:14px;
  background:linear-gradient(140deg, rgba(0,200,255,.25), rgba(0,120,255,.1));
  border:1px solid rgba(0,200,255,.3);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 0 16px rgba(0,200,255,.22);
}
.logo-name{
  font-size:20px;font-weight:800;color:var(--text-bright);line-height:1.15;
}
.logo-name small{
  display:block;font-size:10px;color:var(--primary);font-weight:600;letter-spacing:3px;
  margin-top:2px;
}
.main-nav{display:flex;align-items:center;gap:30px;}
.nav-link{
  font-size:15px;color:var(--text);font-weight:500;padding:24px 0;position:relative;transition:color .25s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:100%;bottom:14px;height:3px;
  border-radius:99px;background:var(--primary);box-shadow:0 0 14px rgba(0,200,255,.8);
  transition:right .25s ease;
}
.nav-link:hover{color:var(--primary);}
.nav-link.active{color:#fff;}
.nav-link.active::after{right:0;}
.nav-actions{display:flex;gap:10px;align-items:center;}
.nav-burger{
  display:none;
  padding:9px 10px;
  border-radius:10px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  color:var(--text-bright);
  line-height:0;
}
.nav-burger span{display:block;width:20px;height:2px;background:currentColor;margin:4px 2px;border-radius:2px;}

.hero{
  position:relative;
  min-height:92vh;
  display:flex;
  align-items:center;
  background:url('/assets/images/backpic/back-1.webp') center center / cover no-repeat,
              radial-gradient(circle at 20% 30%, rgba(0,200,255,.18), transparent 55%),
              linear-gradient(160deg,#0B1420, #08101a 80%);
}
.hero-overlay{
  position:absolute;inset:0;
  background:
    linear-gradient(90deg, rgba(11,20,32,.92) 0%, rgba(11,20,32,.66) 42%, rgba(11,20,32,.24) 100%),
    linear-gradient(0deg, rgba(11,20,32,.98) 0%, rgba(11,20,32,.2) 60%, rgba(11,20,32,.4) 100%);
}
.hero-inner{position:relative;z-index:2;display:flex;align-items:center;gap:48px;}
.hero-content{flex:1.15;padding:80px 0;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 16px;border-radius:999px;
  border:1px solid rgba(0,200,255,.4);
  color:var(--primary);background:rgba(0,200,255,.08);
  font-size:13px;font-weight:700;letter-spacing:1px;
  margin-bottom:22px;
}
.hero-badge i{width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px rgba(0,200,255,.16);}
.hero h1{
  font-size:clamp(32px,5vw,58px);
  font-weight:900;
  line-height:1.22;
  color:var(--text-bright);
  letter-spacing:-1px;
  margin-bottom:20px;
}
.hero h1 .brand-gradient{
  background:linear-gradient(120deg,var(--primary),#7fd9ff);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
  text-shadow:none;
  display:inline-block;
}
.hero p{
  font-size:17px;
  color:rgba(255,255,255,.75);
  max-width:570px;
  line-height:1.9;
  margin-bottom:32px;
}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;}
.hero-points{
  display:flex;flex-wrap:wrap;gap:10px 26px;
  list-style:none;margin-top:32px;
}
.hero-points li{
  display:flex;align-items:center;gap:9px;
  color:var(--text);font-size:14px;
}
.hero-points li::before{
  content:"✓";display:inline-flex;align-items:center;justify-content:center;
  width:18px;height:18px;border-radius:6px;
  background:rgba(0,200,255,.12);
  color:var(--primary);font-size:12px;font-weight:800;
}
.hero-status{
  width:320px;
  padding:26px;
  position:relative;
}
.hero-status::after{
  content:"";
  position:absolute;
  right:-14px;top:-14px;width:56px;height:56px;border-radius:18px;
  border:1px dashed rgba(0,200,255,.35);
  animation:rotateSlow 14s linear infinite;
}
@keyframes rotateSlow{from{transform:rotate(0)}to{transform:rotate(360deg)}}
.status-heading{
  font-size:13px;letter-spacing:1px;color:var(--muted);
  margin-bottom:14px;
  display:flex;justify-content:space-between;
}
.status-line{
  display:flex;align-items:center;gap:10px;
  font-size:14px;color:var(--text-bright);
  padding:11px 0;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.status-line:last-child{border-bottom:none;}
.status-line .dot{width:7px;height:7px;border-radius:50%;background:var(--muted);flex:0 0 auto;}
.status-line .dot.online{background:var(--success);box-shadow:0 0 0 4px rgba(46,229,166,.12);animation:pulse 2s infinite;}
.status-line .dot.count{background:var(--accent);box-shadow:0 0 0 4px rgba(255,138,0,.14);}
.status-line .dot.tv{background:var(--gold);box-shadow:0 0 0 4px rgba(245,200,66,.12);}
.status-line .label{color:var(--muted);margin-left:auto;font-size:13px;padding-left:10px;}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(46,229,166,.45);}
  70%{box-shadow:0 0 0 10px rgba(46,229,166,0);}
  100%{box-shadow:0 0 0 0 rgba(46,229,166,0);}
}
.scroll-hint{
  position:absolute;bottom:24px;left:50%;transform:translateX(-50%);
  z-index:3;color:rgba(255,255,255,.5);
  font-size:13px;letter-spacing:2px;
  display:flex;flex-direction:column;align-items:center;gap:6px;
  transition:color .3s ease;
}
.scroll-hint:hover{color:#fff;}
.scroll-hint i{
  width:22px;height:34px;border:2px solid rgba(255,255,255,.35);
  border-radius:14px;position:relative;
  display:block;
}
.scroll-hint i::after{
  content:"";width:3px;height:7px;background:var(--primary);
  border-radius:2px;position:absolute;left:50%;top:6px;transform:translateX(-50%);
  animation:scroll 1.8s infinite;
}
@keyframes scroll{
  0%{top:6px;opacity:1;}
  60%{top:14px;opacity:0;}
  100%{top:6px;opacity:0;}
}

.live-layout{
  display:grid;
  grid-template-columns:minmax(0,1.8fr) minmax(0,1fr);
  gap:26px;
  align-items:stretch;
}
.live-main-card{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  min-height:520px;
  display:flex;
  align-items:flex-end;
  background-size:cover;
  background-position:center;
  border:1px solid rgba(255,255,255,.12);
}
.live-card-mask{
  position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(11,20,32,.05) 10%, rgba(11,20,32,.82) 85%);
}
.live-main-content{position:relative;z-index:2;padding:34px;width:100%;}
.live-badge{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12px;font-weight:700;letter-spacing:.6px;
  padding:5px 14px;border-radius:999px;
}
.live-badge.live{background:var(--danger);color:#fff;box-shadow:0 0 16px rgba(255,77,106,.4);}
.live-badge.upcoming{background:rgba(255,138,0,.16);color:var(--accent);border:1px solid rgba(255,138,0,.4);}
.live-badge.finished{background:rgba(255,255,255,.1);color:#cbd5e1;border:1px solid rgba(255,255,255,.2);}
.live-event{
  font-size:14px;color:var(--primary);letter-spacing:1px;
  margin-top:14px;text-transform:uppercase;
}
.live-main-content h3{
  font-size:clamp(24px,3vw,34px);
  color:#fff;font-weight:800;
  margin:6px 0 8px;
}
.live-meta{font-size:15px;color:rgba(255,255,255,.8);margin-bottom:24px;}
.live-actions{display:flex;flex-wrap:wrap;gap:12px;}
.live-side{display:flex;flex-direction:column;gap:24px;}
.mini-card{padding:16px;display:grid;grid-template-columns:116px 1fr;gap:16px;transition:border-color .3s ease, transform .3s ease;}
.mini-card:hover{border-color:rgba(0,200,255,.4);transform:translateY(-3px);}
.mini-cover{border-radius:14px;min-height:104px;background-size:cover;background-position:center;position:relative;}
.mini-cover .live-badge{position:absolute;top:8px;left:8px;font-size:10px;padding:2px 9px;}
.mini-info .mini-cat{font-size:12px;color:var(--primary);letter-spacing:1px;}
.mini-info h4{color:#fff;font-size:15px;line-height:1.5;margin:5px 0 4px;}
.mini-info p{color:var(--muted);font-size:13px;}

.choose-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:22px;
  margin-top:46px;
}
.choose-list{
  display:flex;
  flex-direction:column;
  gap:16px;
  margin-top:60px;
}
.choose-item{
  position:relative;
  display:flex;
  gap:18px;
  padding:24px 28px;
  border-radius:var(--radius-lg);
  background:#fff;
  border:1px solid var(--element-border);
  box-shadow:0 6px 26px rgba(0,0,0,.24);
}
.choose-icon{
  width:48px;height:48px;flex:0 0 auto;
  border-radius:14px;
  background:linear-gradient(135deg, rgba(0,200,255,.22), rgba(0,120,255,.06));
  border:1px solid rgba(0,200,255,.3);
  color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 0 18px rgba(0,200,255,.12);
}
.choose-item h3{color:#fff;font-size:18px;font-family:var(--font-stack);line-height:40px;}
.choose-item p{
  color:#64748b;
  line-height:1.8;
  font-size:15px;
}
.choose-num{
  font-size:13px;line-height:46px;margin-right:10px;color:#94a3b8;
  font-weight:600;white-space:nowrap;
}
.choose-item .choose-title{display:inline-flex;font-size:18px;font-weight:700;color:#fff;margin:2px 0 4px;vertical-align:middle;}
.choose-item h3{margin:0;font-size:20px;font-weight:800;color:#f1f5f9;display:inline;}
.choose-item h3 span{color:var(--primary);}
.choose-item p{margin-top:6px;}
.text-muted{color:#94a3b8;font-size:15px;}

.entry-bento{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:40px;}
.entry-bento-card{
  background:#fff;border:1px solid #e2e8f0;border-radius:24px;
  position:relative;overflow:hidden;
  background-size:cover;background-position:center;
  min-height:220px;
  padding:30px;
  display:flex;align-items:flex-end;
  box-shadow:0 10px 28px rgba(0,0,0,.12);
}
.entry-bento-card::before{content:"";position:absolute;inset:0;background:rgba(255,255,255,.7);backdrop-filter:blur(2px);}
.entry-content{position:relative;display:flex;flex-direction:column;color:#fff;}
.entry-content .entry-cat{font-size:12px;font-weight:800;letter-spacing:2px;text-transform:uppercase;}
.entry-content h3{font-size:22px;line-height:1.35;margin-top:8px;}
.entry-content p{font-size:15px;line-height:1.75;color:rgba(255,255,255,.85);max-width:300px;}
.learn-link{display:inline-flex;margin-top:14px;color:#fff;font-size:14px;align-items:center;gap:4px;}
.learn-link:hover{color:#ffe9a7;}
.entry-link{position:absolute;inset:0;z-index:2;}

@media (min-width:1024px){
  .entry-bento-card:nth-child(1),.entry-bento-card:nth-child(4){
    grid-template-columns:1.2fr .8fr;
    display:grid;
  }
}

.login-zone{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  background:url('/assets/images/backpic/back-2.webp') center center / cover no-repeat, linear-gradient(150deg,#0B1420,#111E2E);
}
.login-zone::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg, rgba(11,20,32,.9), rgba(11,20,32,.78) 60%, rgba(11,20,32,.4));
}
.login-inner{
  position:relative;
  display:grid;
  grid-template-columns:1.2fr 1fr;
  gap:40px;
  align-items:center;
  padding:72px 50px;
}
.login-zone h2{
  font-size:clamp(26px,4vw,40px);
  color:#fff;
  letter-spacing:-.5px;
  line-height:1.3;
  font-weight:800;
  margin-bottom:14px;
}
.login-zone .login-copy{color:rgba(255,255,255,.78);font-size:16px;max-width:520px;}
.login-zone .btn{margin-top:26px;}
.login-features{
  display:flex;
  flex-direction:column;
  gap:6px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.12);
  backdrop-filter:blur(16px);
  border-radius:18px;
  padding:18px 22px;
}
.login-features li{
  display:flex;align-items:center;gap:10px;
  list-style:none;color:#fff;font-size:15px;
  border-bottom:1px solid rgba(255,255,255,.06);
  padding:11px 0;
}
.login-features li:last-child{border-bottom:none;}
.login-features li::before{
  content:"✓";width:20px;height:20px;border-radius:7px;flex:0 0 auto;
  background:rgba(0,200,255,.16);color:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;
}

.news-area{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:30px;
  margin-top:46px;
}
.news-feature-card{
  overflow:hidden;
  background:#fff;
  border-radius:22px;
  border:1px solid #e2e8f0;
  height:100%;
  display:flex;
  flex-direction:column;
  box-shadow:0 4px 18px rgba(15,23,42,.08);
  transition:transform .3s ease, box-shadow .3s ease;
}
.news-feature-card:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(15,23,42,.14);}
.feature-cover{
  height:230px;
  background:url('/assets/images/coverpic/cover-2.webp') center center/cover no-repeat, #1e3a4b;
  position:relative;
  display:flex;
  align-items:flex-start;
  padding:18px;
}
.feature-cover .category-pill{
  background:rgba(0,200,255,.92);
  color:#0b1020;
  font-size:12px;
  font-weight:700;
  padding:4px 14px;
  border-radius:99px;
  letter-spacing:.5px;
}
.feature-body{padding:24px;display:flex;flex-direction:column;flex:1;}
.feature-body h3{font-size:21px;color:#1e293b;line-height:1.5;margin-bottom:10px;}
.feature-body h3 a:hover{color:var(--primary);}
.feature-body p{color:#94a3b8;line-height:1.8;font-size:15px;flex:1;}
.feature-meta{margin-top:22px;display:flex;align-items:center;justify-content:space-between;color:#cbd5e1;font-size:13px;}
.news-mini-list{display:flex;flex-direction:column;gap:14px;}
.news-mini-link{
  display:flex;
  align-items:center;
  gap:18px;
  padding:20px 20px;
  background:#fff;
  border-radius:20px;
  border:1px solid #e2e8f0;
  transition:all .3s ease;
}
.news-mini-link:hover{border-color:var(--primary);background:#fff;}
.mini-date-box{
  width:64px;height:64px;border-radius:16px;flex:0 0 auto;
  background:#f1f9fd;color:#00597f;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  font-size:13px;line-height:1.4;font-weight:700;
}
.mini-date-box strong{font-size:22px;color:#0e7490;line-height:1.2;}
.mini-text{flex:1;min-width:0;line-height:1.5;}
.mini-text b{display:block;color:#1e293b;font-size:16px;white-space:nowrap;text-overflow:ellipsis;overflow:hidden;margin-bottom:2px;}
.mini-text span{color:#94a3b8;font-size:13px;display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.mini-text .cat-time{margin-top:4px;color:#eab308;font-size:12px;}
.news-empty{
  grid-column:1/-1;
  text-align:center;
  padding:56px 24px;
  background:rgba(255,255,255,.03);
  border:1px dashed rgba(255,255,255,.16);
  border-radius:20px;
  color:var(--text);
  font-size:16px;
}
.section-footer-link{
  font-size:14px;font-weight:600;color:var(--primary);
}
.section-footer-link:hover{text-decoration:underline;}

.faq-wrap{max-width:780px;margin:44px auto 0;}
.faq-item{border-bottom:1px solid rgba(30,41,59,.09);}
.faq-q{
  display:flex;
  align-items:center;
  gap:14px;
  width:100%;
  text-align:left;
  padding:22px 4px;
  color:#1e293b;
  font-size:17px;
  background:transparent;
  font-weight:700;
}
.faq-q .plus{
  width:24px;height:24px;
  border:1px solid #d0e4f2;
  border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  flex:0 0 auto;
  transition:all .3s ease;
  color:#0875a7;
}
.faq-item.open .plus{transform:rotate(45deg);border-color:var(--primary);color:var(--primary);}
.faq-answer{
  height:0;overflow:hidden;
  transition:height .3s ease;
}
.faq-answer p{
  padding:0 4px 20px 38px;
  color:#475569;
  font-size:15px;
  line-height:1.9;
}
.faq-answer{padding:0;margin:0;}

.cta-band{
  margin:0 auto;
}
.cta-strip{
  background:url('/assets/images/backpic/back-3.webp') center center/cover no-repeat, #0c1e2b;
  border-radius:26px;
  padding:58px 48px;
  position:relative;
  overflow:hidden;
}
.cta-strip::before{
  content:"";position:absolute;inset:0;
  background:rgba(11,20,32,.7), linear-gradient(120deg, rgba(11,20,32,.9), rgba(0,80,120,.4));
  background:linear-gradient(120deg, rgba(11,20,32,.92), rgba(11,30,45,.82));
}
.cta-strip .cta-content{position:relative;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;}
.cta-strip h2{color:#fff;font-size:clamp(24px,3.5vw,38px);font-weight:800;letter-spacing:-.3px;line-height:1.3;}
.cta-strip p{color:rgba(255,255,255,.7);margin-top:8px;font-size:15px;}

.site-footer{
  background:#09121e;
  border-top:1px solid rgba(0,200,255,.14);
  padding:68px 0 0;
}
.footer-top{
  display:grid;
  grid-template-columns:1.4fr 0.9fr 0.9fr 0.9fr;
  gap:36px;
  padding-bottom:46px;
}
.footer-logo-card .logo{margin-bottom:14px;}
.footer-intro{font-size:14px;color:#94a3b8;line-height:1.9;max-width:300px;}
.footer-domain{
  margin-top:14px;font-size:12px;color:#64748b;
  border:1px solid #1e293b;border-radius:10px;
  display:inline-flex;padding:4px 10px;
}
.footer-links-title{
  color:#f8fafc;
  font-size:15px;
  margin-bottom:20px;
  letter-spacing:.3px;
}
.footer-col ul{list-style:none;}
.footer-col li{margin-bottom:7px;}
.footer-col a{
  color:#94a3b8;font-size:14px;
  transition:color .25s ease;
}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:8px;
  text-align:center;
  padding:22px 0 36px;
  border-top:1px solid rgba(255,255,255,.05);
  color:#64748b;
  font-size:13px;
}

@media (max-width:1024px){
  .main-nav{
    position:absolute;top:74px;left:0;right:0;
    background:rgba(9,18,32,.98);
    flex-direction:column;
    gap:0;
    padding:10px 20px;
    border-bottom:1px solid rgba(0,200,255,.2);
    display:none;
    box-shadow:0 20px 40px rgba(0,0,0,.3);
  }
  .nav-open .main-nav{display:flex;}
  .main-nav .nav-link{width:100%;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.05);font-size:16px;}
  .main-nav .nav-link:first-child{margin-top:4px;}
  .main-nav .nav-link::after{display:none;}
  .main-nav .nav-link.active{color:var(--primary);}
  .nav-burger{display:block;}
  .nav-actions .btn-outline{display:none;}
  .hero-inner{flex-direction:column;gap:26px;padding:46px 0 90px;}
  .hero-content{padding:20px 0 0;}
  .hero-status{width:100%;max-width:460px;}
  .live-layout,.login-inner,.news-area{grid-template-columns:1fr;}
  .choose-grid{grid-template-columns:1fr;}
  .site-footer{grid-template-columns:1fr;}
}
@media (max-width:760px){
  .section{padding:64px 0;}
  .header-flex{height:64px;}
  .container{padding-left:16px;padding-right:16px;}
  .logo-name{font-size:18px;}
  .logo-mark{width:38px;height:38px;}
  .section-title{font-size:28px;}
  .section-head{flex-direction:column;align-items:flex-start;}
  .mini-card{grid-template-columns:94px 1fr;}
  .mini-card{padding:12px;}
  .mini-cover{min-height:88px;}
  .feature-cover{height:180px;}
  .news-mini-link .date-text{display:none;}
  .mini-date-box{display:none;}
  .cta-strip{padding:34px 22px;border-radius:20px;}
  .login-inner{padding:44px 24px;}
  .hero-status{width:100%;}
  .hero-btns .btn{width:100%;}
  .footer-hero-wrap{grid-template-columns:1fr;}
}
@media (max-width:520px){
  body{font-size:15px;}
  .nav-actions .btn{height:34px;font-size:13px;padding:0 14px;}
  .nav-actions .btn:first-child{display:none;}
  .feature-list .gap-8{display:grid;grid-template-columns:1fr;}
  .intro-grid{grid-template-columns:1fr;}
  .live-main-content{padding:20px;}
  .live-main-content h3{font-size:24px;}
  .live-meta{font-size:14px;}
  .live-card-actions .btn{padding:0 14px;height:38px;}
}

/* roulang page: article */
:root{
  --bg-deep:#0B1420;
  --bg-soft:#111E2E;
  --panel:#0E1A29;
  --primary:#00C8FF;
  --primary-deep:#007BFF;
  --accent:#FF8A00;
  --gold:#F5C842;
  --danger:#FF4D6A;
  --success:#2CE5A6;
  --text:#F2F7FD;
  --text-2:#A7B6CB;
  --text-3:#64748B;
  --border:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.055);
  --glass-hover:rgba(255,255,255,.10);
  --radius-lg:22px;
  --radius-md:14px;
  --shadow-lg:0 30px 70px rgba(0,0,0,.35);
  --font-base:"PingFang SC","HarmonicOS Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,Inter,sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:110px}
body{
  margin:0;
  background:
    radial-gradient(1200px 600px at 85% -10%, rgba(0,200,255,.08), transparent 60%),
    radial-gradient(900px 500px at -10% 30%, rgba(0,123,255,.10), transparent 55%),
    var(--bg-deep);
  color:var(--text);
  font-family:var(--font-base);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  opacity:.35;
  background-image:radial-gradient(rgba(255,255,255,.025) 1px, transparent 1px);
  background-size:24px 24px;
  z-index:0;
}
a{color:inherit;text-decoration:none;transition:color .25s ease, background .25s ease, border-color .25s ease, box-shadow .25s ease, transform .25s ease}
img{display:block;max-width:100%;}
button{font-family:inherit;border:none;cursor:pointer}
ul,ol{margin:0;padding:0}
li{list-style:none}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1}

/* Header */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(8,14,24,.88);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.site-header::after{
  content:"";
  position:absolute;
  bottom:-1px;
  left:0;
  right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(0,200,255,.55),rgba(245,200,66,.28),transparent);
  pointer-events:none;
}
.header-flex{
  min-height:72px;
  display:flex;
  align-items:center;
  gap:24px;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:38px;height:38px;
  display:grid;
  place-items:center;
  border-radius:12px;
  background:linear-gradient(145deg,rgba(0,200,255,.22),rgba(0,123,255,.08));
  border:1px solid rgba(0,200,255,.35);
  box-shadow:0 0 16px rgba(0,200,255,.18);
}
.logo-name{
  color:#fff;
  font-size:20px;
  font-weight:800;
  letter-spacing:.02em;
  line-height:1.15;
  display:flex;
  align-items:baseline;
  gap:6px;
}
.logo-name small{
  font-size:11px;
  font-weight:600;
  color:var(--primary);
  background:rgba(0,200,255,.08);
  border:1px solid rgba(0,200,255,.22);
  padding:2px 7px;
  border-radius:999px;
  letter-spacing:.06em;
}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:34px;flex-wrap:wrap}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:#B4C3D5;
  padding:9px 14px;
  border-radius:10px;
  display:inline-flex;
  align-items:center;
}
.nav-link:hover{
  color:var(--primary);
  background:rgba(0,200,255,.06);
}
.nav-link.active{
  color:#fff;
  font-weight:700;
}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:0;
  height:2px;
  border-radius:2px;
  background:var(--primary);
  box-shadow:0 0 10px rgba(0,200,255,.8);
}
.nav-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.nav-burger{
  display:none;
  width:42px;
  height:42px;
  border-radius:12px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08);
  justify-content:center;
  align-items:center;
  flex-direction:column;
  gap:5px;
}
.nav-burger span{
  display:block;
  width:18px;
  height:2px;
  background:#E2F1FF;
  border-radius:2px;
  transition:transform .3s ease, opacity .3s ease;
}
.site-header.nav-open .nav-burger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.site-header.nav-open .nav-burger span:nth-child(2){opacity:0}
.site-header.nav-open .nav-burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.site-header.nav-open .main-nav{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
  pointer-events:auto;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:42px;
  padding:0 22px;
  border-radius:999px;
  font-size:14px;
  font-weight:600;
  line-height:1;
  border:1px solid transparent;
  transition:transform .25s ease, box-shadow .25s ease, background .25s ease, color .25s ease;
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,#00C8FF,#007BFF);
  color:#031624;
  box-shadow:0 0 18px rgba(0,200,255,.28);
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 0 30px rgba(0,200,255,.5);
  color:#00131c;
}
.btn-outline{
  background:transparent;
  color:var(--primary);
  border-color:rgba(0,200,255,.55);
  box-shadow:inset 0 0 12px rgba(0,200,255,.04);
}
.btn-outline:hover{
  background:rgba(0,200,255,.08);
  border-color:var(--primary);
  transform:translateY(-1px);
  box-shadow:0 0 20px rgba(0,200,255,.25);
  color:#fff;
}
.btn-small{height:36px;padding:0 18px;font-size:13px}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  padding:8px 0;
}
.btn-text:hover{color:#fff}
.btn:active{transform:scale(.98);filter:brightness(.92)}

/* article hero */
.article-hero{
  position:relative;
  overflow:hidden;
  padding:64px 0 48px;
  background:
    linear-gradient(180deg,rgba(7,12,22,.88),rgba(11,21,34,.94)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.article-hero::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:radial-gradient(600px 240px at 20% 0%,rgba(0,200,255,.12),transparent 70%);
}
.article-hero .container{position:relative;z-index:2}
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:9px;
  font-size:13px;
  color:#7793AC;
  margin-bottom:28px;
}
.breadcrumb a{color:#8DA8C0;transition:color .2s}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb span.current{color:#CFE5F5}
.bc-sep{color:#415368}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-size:13px;
  font-weight:600;
  color:var(--primary);
  background:rgba(0,200,255,.08);
  border:1px solid rgba(0,200,255,.28);
  padding:6px 14px;
  border-radius:999px;
  box-shadow:0 0 14px rgba(0,200,255,.12);
}
.hero-badge::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 8px var(--primary);
}
.article-title{
  max-width:980px;
  margin:18px 0 22px;
  font-size:clamp(30px,4vw,48px);
  line-height:1.3;
  font-weight:800;
  color:#F6FAFF;
  letter-spacing:0;
  text-wrap:balance;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px 18px;
  align-items:center;
  color:#8FA5BA;
  font-size:13px;
}
.meta-item{
  display:inline-flex;
  align-items:center;
  gap:7px;
}
.meta-item .dot{
  width:5px;height:5px;
  border-radius:50%;
  background:rgba(255,138,0,.9);
  box-shadow:0 0 6px rgba(255,138,0,.6);
}
.meta-item.orange .dot{background:var(--accent)}
.meta-item.green .dot{background:var(--success)}

/* layout */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 260px;
  gap:36px;
  padding-top:48px;
  padding-bottom:64px;
  align-items:start;
}
.article-card{
  order:1;
  position:relative;
  background:linear-gradient(180deg,rgba(15,27,43,.96),rgba(9,18,30,.985));
  border:1px solid rgba(255,255,255,.08);
  border-radius:26px;
  box-shadow:var(--shadow-lg);
  overflow:hidden;
  padding:clamp(22px,4vw,48px);
}
.article-card-topline{
  height:3px;
  margin:-1px -1px 0;
  background:linear-gradient(90deg,var(--primary),rgba(0,200,255,.05),transparent);
  border-radius:0;
}
#articleBody{
  font-size:17px;
  line-height:1.95;
  color:#C9D6E5;
  word-wrap:break-word;
  overflow-wrap:break-word;
}
#articleBody p{margin:0 0 1.45em}
#articleBody h2{
  font-size:clamp(23px,2.8vw,30px);
  color:#F6FAFF;
  line-height:1.45;
  font-weight:800;
  margin:50px 0 20px;
  padding-left:16px;
  border-left:4px solid var(--primary);
  letter-spacing:0;
}
#articleBody h3{
  font-size:22px;
  color:#E8F3FF;
  margin:42px 0 16px;
  font-weight:700;
}
#articleBody h4{
  font-size:18px;
  color:#E2EDFA;
  margin:32px 0 12px;
  font-weight:700;
}
#articleBody strong{color:#F4F9FF;font-weight:700}
#articleBody em{color:#D9E7FB}
#articleBody a{color:var(--primary);text-decoration:underline;text-underline-offset:4px}
#articleBody a:hover{color:#65DFFF}
#articleBody ul{margin:0 0 1.6em;padding:0;list-style:none}
#articleBody ul li{
  position:relative;
  padding-left:24px;
  margin-bottom:10px;
}
#articleBody ul li::before{
  content:"▸";
  position:absolute;
  left:4px;
  top:0;
  color:var(--primary);
  font-weight:700;
}
#articleBody ol{list-style:decimal;margin:0 0 1.6em;padding-left:22px}
#articleBody ol li{margin-bottom:10px}
#articleBody blockquote{
  margin:30px 0;
  padding:18px 24px;
  background:rgba(0,200,255,.05);
  border:1px solid rgba(0,200,255,.14);
  border-left:4px solid var(--primary);
  border-radius:0 14px 14px 0;
  color:#D3E7F7;
}
#articleBody blockquote p:last-child{margin-bottom:0}
#articleBody img{
  width:auto;
  max-width:100%;
  height:auto;
  border-radius:16px;
  margin:24px auto;
  border:1px solid rgba(255,255,255,.08);
  box-shadow:0 16px 40px rgba(0,0,0,.3);
}
#articleBody figure{
  margin:28px 0;
  text-align:center;
}
#articleBody figure figcaption{
  font-size:13px;
  color:#60738A;
  margin-top:10px;
}
#articleBody hr{
  margin:40px 0;
  border:0;
  height:1px;
  background:linear-gradient(90deg,rgba(255,255,255,.05),rgba(0,200,255,.35),rgba(255,255,255,.05));
}
#articleBody table{
  width:100%;
  border-collapse:collapse;
  margin:26px 0;
  font-size:15px;
  background:rgba(0,0,0,.16);
  border-radius:14px;
  overflow:hidden;
}
#articleBody table th,
#articleBody table td{
  padding:12px 14px;
  border:1px solid rgba(255,255,255,.08);
  text-align:left;
}
#articleBody table th{
  background:rgba(0,200,255,.08);
  color:#DDF3FF;
  font-weight:700;
}

/* inline tip */
.inline-login-tip{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:16px;
  margin-top:36px;
  padding:20px 22px;
  background:rgba(255,255,255,.045);
  border:1px solid rgba(255,255,255,.09);
  border-radius:18px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.05);
}
.tip-copy strong{
  display:block;
  font-size:16px;
  color:#EDF6FF;
  margin-bottom:3px;
}
.tip-copy p{
  margin:0;
  font-size:14px;
  color:#7F99B3;
}
.tip-btn{flex-shrink:0}

/* bottom panel */
.article-bottom{
  margin-top:36px;
  padding-top:26px;
  border-top:1px solid rgba(255,255,255,.07);
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:20px;
}
.article-tag-list{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.article-tag{
  font-size:13px;
  color:#B8CBDF;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08);
  border-radius:999px;
  padding:6px 14px;
  transition:all .2s ease;
}
.article-tag:hover{
  color:var(--primary);
  border-color:rgba(0,200,255,.35);
  box-shadow:0 0 12px rgba(0,200,255,.12);
}
.share-row{
  display:flex;
  align-items:center;
  gap:8px;
}
.share-btn{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:36px;
  padding:0 15px;
  border-radius:999px;
  font-size:13px;
  font-weight:600;
  color:#D5E7F5;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.09);
  transition:all .2s ease;
}
.share-btn:hover{
  border-color:rgba(0,200,255,.5);
  color:var(--primary);
  box-shadow:0 0 14px rgba(0,200,255,.15);
}
.back-article-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  font-weight:600;
  color:#9AB2C8;
  padding:4px 0;
}
.back-article-link:hover{color:var(--primary)}

/* toc */
.article-toc{
  order:2;
  position:sticky;
  top:110px;
  max-height:calc(100vh - 140px);
  overflow:auto;
  background:rgba(255,255,255,.035);
  border:1px solid rgba(255,255,255,.07);
  border-radius:18px;
  padding:20px;
  backdrop-filter:blur(10px);
}
.toc-title{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:700;
  color:#E7F4FF;
  margin-bottom:16px;
  padding-bottom:12px;
  border-bottom:1px solid rgba(255,255,255,.07);
}
.toc-title svg{width:16px;height:16px;stroke:var(--primary)}
#tocList{
  display:flex;
  flex-direction:column;
  gap:4px;
}
#tocList a{
  font-size:13px;
  line-height:1.6;
  color:#88A1B8;
  font-weight:500;
  padding:8px 12px;
  border-radius:9px;
  border-left:2px solid transparent;
}
#tocList a:hover{
  color:var(--primary);
  background:rgba(0,200,255,.05);
  border-left-color:var(--primary);
}
#tocBox.empty{display:none}

/* section */
.section{position:relative;padding:64px 0}
.section-deep{
  border-top:1px solid rgba(255,255,255,.05);
  background:linear-gradient(180deg,rgba(10,19,32,.5),rgba(7,14,24,.6));
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:18px;
  margin-bottom:34px;
}
.section-title{
  position:relative;
  margin:0;
  font-size:clamp(22px,2.6vw,30px);
  font-weight:800;
  color:#F3F9FF;
  letter-spacing:.01em;
  line-height:1.35;
}
.section-title::before{
  content:"";
  display:block;
  width:34px;
  height:3px;
  border-radius:4px;
  background:linear-gradient(90deg,var(--primary),rgba(0,200,255,.1));
  margin-bottom:14px;
  box-shadow:0 0 12px rgba(0,200,255,.45);
}
.section-sub{
  color:#7E96AF;
  font-size:14px;
  margin-top:8px;
}

/* quick cards */
.quick-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.quick-card{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  background:var(--panel);
  border:1px solid var(--border);
  transition:transform .3s cubic-bezier(.2,.7,.3,1), border-color .3s ease, box-shadow .3s ease;
}
.quick-card:hover{
  transform:translateY(-5px);
  border-color:rgba(0,200,255,.36);
  box-shadow:0 24px 50px rgba(0,0,0,.28);
}
.quick-card-img{
  position:relative;
  height:190px;
  overflow:hidden;
  background:#0C1930;
}
.quick-card-img::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(10,18,30,.82));
}
.quick-card-img img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.quick-card:hover .quick-card-img img{transform:scale(1.04)}
.quick-card-body{
  padding:10px 10px 22px;
}
.quick-tag{
  display:inline-block;
  font-size:11px;
  font-weight:700;
  color:#BDEBFF;
  background:rgba(0,200,255,.07);
  border:1px solid rgba(0,200,255,.22);
  border-radius:999px;
  padding:3px 10px;
  margin:0 0 10px 12px;
  letter-spacing:.04em;
}
.quick-card-body h3{
  margin:2px 0 8px 12px;
  font-size:18px;
  line-height:1.5;
  color:#EAF4FD;
  font-weight:800;
}
.quick-card-body p{
  margin:0 12px 14px;
  font-size:14px;
  color:#7790A8;
  line-height:1.7;
}
.quick-card-link{
  display:inline-flex;
  margin:0 0 0 12px;
  font-size:13px;
  font-weight:600;
  color:var(--primary);
  align-items:center;
  gap:5px;
}
.quick-card-link:hover{color:#fff}

/* not found */
.empty-panel{
  max-width:720px;
  margin:44px auto 70px;
  text-align:center;
  background:rgba(255,255,255,.04);
  border:1px dashed rgba(255,255,255,.14);
  border-radius:24px;
  padding:48px 26px;
  position:relative;
}
.empty-icon{
  width:60px;height:60px;
  margin:0 auto 18px;
  display:grid;
  place-items:center;
  border-radius:18px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08);
}
.empty-panel h2{
  margin:0 0 10px;
  font-size:24px;
  color:#F1F7FE;
}
.empty-panel p{
  color:#89A0B5;
  font-size:15px;
  margin:0 0 26px;
}

/* footer */
.site-footer{
  background:#080F18;
  border-top:1px solid rgba(255,255,255,.07);
  position:relative;
  z-index:1;
}
.footer-top{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:38px;
  padding:60px 0 44px;
}
.footer-logo-card .logo{margin-bottom:16px}
.footer-intro{
  color:#7E93A8;
  font-size:14px;
  line-height:1.85;
  margin:0 0 16px;
  max-width:320px;
}
.footer-domain{
  display:inline-flex;
  align-items:center;
  font-size:12px;
  color:#5E7790;
  background:rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.07);
  border-radius:999px;
  padding:5px 13px;
}
.footer-links-title{
  font-size:15px;
  font-weight:700;
  color:#DCEAFA;
  margin:0 0 18px;
}
.footer-col li{
  display:flex;
  align-items:center;
  margin-bottom:12px;
}
.footer-col li a{
  font-size:14px;
  color:#8FA5BA;
  padding:2px 0;
  transition:color .2s ease;
}
.footer-col li a:hover{color:var(--primary)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.07);
  padding:22px 0;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  color:#516A80;
  font-size:13px;
}
.footer-bottom p{margin:0}

@media (max-width:1024px){
  .article-layout{
    grid-template-columns:minmax(0,1fr);
    gap:0;
  }
  .article-toc{display:none}
}
@media (max-width:920px){
  .main-nav{
    position:absolute;
    top:100%;
    left:0;
    right:0;
    background:rgba(7,13,22,.98);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    border-bottom:1px solid rgba(255,255,255,.08);
    flex-direction:column;
    align-items:stretch;
    margin-left:0;
    padding:14px;
    gap:6px;
    opacity:0;
    visibility:hidden;
    transform:translateY(-12px);
    transition:.3s ease;
    pointer-events:none;
  }
  .nav-link,.nav-link.active{
    padding:13px 16px;
    border-radius:12px;
    font-size:15px;
  }
  .nav-link.active{background:rgba(0,200,255,.08)}
  .nav-link.active::after{display:none}
  .nav-actions{margin-left:auto}
  .nav-burger{display:inline-flex}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:640px){
  .container{padding:0 20px}
  .section{padding:48px 0}
  .nav-actions .btn-outline{
    display:none;
  }
  .btn{padding:0 18px}
  .article-hero{padding:48px 0 38px}
  .article-card{border-radius:20px;padding:22px 18px}
  .inline-login-tip{padding:16px}
  .footer-top{grid-template-columns:1fr;gap:26px}
  .article-bottom{flex-direction:column;align-items:flex-start}
  .quick-grid{grid-template-columns:1fr}
}
@media (max-width:480px){
  .logo-name{font-size:17px}
  .logo-mark{width:34px;height:34px}
  .quick-card-img{height:170px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category1 */
:root {
    --bg-deep: #0B1420;
    --bg-soft: #111E2E;
    --primary: #00C8FF;
    --primary-deep: #007BFF;
    --accent: #FF8A00;
    --gold: #F5C842;
    --text-heading: #F2F7FD;
    --text-body: #A7B6CB;
    --text-muted: #64748B;
    --line-dark: rgba(255, 255, 255, 0.08);
    --glass-bg: rgba(255, 255, 255, 0.06);
    --glass-strong: rgba(255, 255, 255, 0.09);
    --glass-border: rgba(255, 255, 255, 0.10);
    --radius-lg: 22px;
    --radius-md: 14px;
    --radius-sm: 10px;
    --glow: 0 0 24px rgba(0, 229, 255, 0.35);
  }
  * {
    box-sizing: border-box;
  }
  html {
    scroll-behavior: smooth;
  }
  body {
    margin: 0;
    font-family: "PingFang SC", "HarmonicOS Sans SC", "Microsoft YaHei", "Inter", sans-serif;
    background: var(--bg-deep);
    color: var(--text-body);
    line-height: 1.8;
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
  }
  img {
    max-width: 100%;
    display: block;
  }
  a {
    text-decoration: none;
    color: inherit;
  }
  button {
    font-family: inherit;
  }
  .container {
    width: min(1200px, calc(100% - 40px));
    margin-left: auto;
    margin-right: auto;
  }
  @media (max-width: 520px) {
    .container {
      width: calc(100% - 32px);
    }
  }
  ::selection {
    background: rgba(0, 200, 255, 0.28);
    color: #fff;
  }
  :focus-visible {
    outline: 3px solid rgba(0, 200, 255, 0.55);
    outline-offset: 2px;
  }
  .glass-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), 0 20px 50px rgba(0, 0, 0, 0.18);
    transition: border-color .3s ease, background .3s ease, transform .3s ease, box-shadow .3s ease;
  }
  .glass-card:hover {
    background: rgba(255, 255, 255, 0.09);
    border-color: rgba(0, 200, 255, 0.35);
    transform: translateY(-2px);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.10), 0 18px 46px rgba(0, 0, 0, 0.26), 0 0 0 1px rgba(0, 200, 255, 0.08);
  }
  .image-wrap {
    overflow: hidden;
    border-radius: var(--radius-md);
  }
  .cover-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .45s ease;
  }
  .glass-card:hover .cover-img {
    transform: scale(1.045);
  }
  .site-header {
    position: sticky;
    top: 0;
    z-index: 60;
    background: rgba(11, 20, 32, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    box-shadow: 0 1px 30px rgba(0, 0, 0, 0.28);
  }
  .site-header::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 1px;
    background: linear-gradient(90deg, rgba(0, 200, 255, 0.45), rgba(0, 200, 255, 0.05) 45%, transparent 80%);
    pointer-events: none;
  }
  .header-flex {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 74px;
    position: relative;
  }
  .logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
  }
  .logo-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: 1px solid rgba(0, 200, 255, 0.55);
    background: rgba(0, 200, 255, 0.10);
    box-shadow: 0 0 18px rgba(0, 200, 255, 0.22);
  }
  .logo-name {
    color: var(--text-heading);
    font-size: 21px;
    font-weight: 800;
    letter-spacing: 0.01em;
    line-height: 1.1;
  }
  .logo-name small {
    color: var(--primary);
    font-size: 12px;
    font-weight: 600;
    margin-left: 5px;
    vertical-align: middle;
  }
  .main-nav {
    display: flex;
    align-items: center;
    gap: 30px;
    margin-left: 12px;
  }
  .nav-link {
    position: relative;
    display: inline-block;
    padding: 8px 2px;
    color: var(--text-body);
    font-size: 15px;
    font-weight: 500;
    line-height: 1.4;
    transition: color .2s ease, text-shadow .2s ease;
  }
  .nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 2px;
    border-radius: 999px;
    background: var(--primary);
    box-shadow: 0 0 12px rgba(0, 200, 255, 0.8);
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform .25s ease;
  }
  .nav-link:hover {
    color: var(--primary);
  }
  .nav-link.active {
    color: var(--text-heading);
    text-shadow: 0 0 18px rgba(0, 200, 255, 0.3);
  }
  .nav-link.active::after {
    transform: scaleX(1);
  }
  .nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
  }
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    min-height: 42px;
    padding: 0 22px;
    border-radius: 999px;
    border: 1px solid transparent;
    font-size: 15px;
    font-weight: 600;
    line-height: 1;
    white-space: nowrap;
    cursor: pointer;
    transition: background .25s ease, color .25s ease, border-color .25s ease, box-shadow .25s ease, transform .2s ease, filter .2s ease;
  }
  .btn:hover {
    transform: translateY(-2px);
  }
  .btn:active {
    transform: scale(0.98);
    filter: brightness(0.94);
  }
  .btn-primary {
    color: #062033;
    background: linear-gradient(135deg, #00E5FF, #00a8ff 70%, #007BFF);
    box-shadow: 0 0 16px rgba(0, 229, 255, 0.35), 0 8px 24px rgba(0, 123, 255, 0.26);
    border-color: rgba(255, 255, 255, 0.16);
  }
  .btn-primary:hover {
    box-shadow: 0 0 30px rgba(0, 229, 255, 0.55), 0 12px 30px rgba(0, 123, 255, 0.34);
  }
  .btn-outline {
    color: var(--primary);
    background: rgba(0, 200, 255, 0.07);
    border-color: rgba(0, 200, 255, 0.45);
  }
  .btn-outline:hover {
    background: rgba(0, 200, 255, 0.14);
    border-color: rgba(0, 200, 255, 0.8);
    box-shadow: 0 0 16px rgba(0, 200, 255, 0.20);
  }
  .btn-ghost {
    color: var(--text-heading);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.12);
  }
  .btn-ghost:hover {
    background: rgba(255, 255, 255, 0.14);
    color: #fff;
  }
  .nav-burger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 42px;
    height: 42px;
    border-radius: 12px;
    border: 1px solid var(--line-dark);
    background: rgba(255, 255, 255, 0.06);
    cursor: pointer;
  }
  .nav-burger span {
    width: 18px;
    height: 2px;
    background: #cbd5e1;
    display: block;
    border-radius: 999px;
  }
  .hero {
    position: relative;
    padding: 72px 0 64px;
    background-image: linear-gradient(200deg, rgba(8, 16, 28, 0.78), rgba(11, 20, 32, 0.94)), url('/assets/images/backpic/back-2.webp');
    background-size: cover;
    background-position: center;
    overflow: hidden;
  }
  .hero::before {
    content: "";
    position: absolute;
    width: 520px;
    height: 520px;
    right: -120px;
    top: -80px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 200, 255, 0.15), transparent 68%);
    pointer-events: none;
  }
  .hero::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0, 200, 255, 0.35), transparent);
  }
  .breadcrumb {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 22px;
  }
  .breadcrumb a {
    color: var(--primary);
  }
  .breadcrumb a:hover {
    text-decoration: underline;
  }
  .breadcrumb span {
    color: var(--text-body);
  }
  .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #bae6fd;
    background: rgba(0, 200, 255, 0.08);
    border: 1px solid rgba(0, 200, 255, 0.28);
    border-radius: 999px;
    padding: 6px 14px;
    font-size: 13px;
    font-weight: 500;
  }
  .hero-title {
    color: var(--text-heading);
    font-size: clamp(32px, 4.4vw, 58px);
    line-height: 1.2;
    font-weight: 800;
    letter-spacing: -0.01em;
    max-width: 720px;
    margin: 18px 0 14px;
  }
  .gradient-text {
    background: linear-gradient(92deg, var(--primary), #53e6ff);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 0 0 30px rgba(0, 200, 255, 0.2);
  }
  .hero-lead {
    max-width: 610px;
    color: #c4d4e5;
    font-size: 16px;
    line-height: 1.9;
    margin-bottom: 24px;
  }
  .hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 8px;
  }
  .hero-status-panel {
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 20px;
    max-width: 320px;
  }
  .hero-status-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }
  .hero-status-row:last-child {
    border-bottom: none;
  }
  .hero-status-label {
    color: #94a3b8;
    font-size: 14px;
  }
  .hero-status-value {
    color: var(--text-heading);
    font-weight: 600;
    font-size: 14px;
  }
  .live-dot-small {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #2CE5A6;
    box-shadow: 0 0 0 0 rgba(44, 229, 166, 0.6);
    animation: pulseGreen 1.6s infinite;
  }
  @keyframes pulseGreen {
    0% {
      box-shadow: 0 0 0 0 rgba(44, 229, 166, 0.6);
    }
    70% {
      box-shadow: 0 0 0 10px rgba(44, 229, 166, 0);
    }
    100% {
      box-shadow: 0 0 0 0 rgba(44, 229, 166, 0);
    }
  }
  .section {
    padding: 80px 0;
  }
  .section-neutral {
    background: var(--bg-soft);
  }
  .section-kicker {
    display: inline-flex;
    gap: 10px;
    align-items: center;
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.08em;
  }
  .section-title {
    color: var(--text-heading);
    font-size: clamp(24px, 3vw, 36px);
    font-weight: 800;
    line-height: 1.35;
    margin-top: 8px;
    margin-bottom: 10px;
  }
  .section-desc {
    color: var(--text-body);
    max-width: 660px;
  }
  .neon-line {
    width: 44px;
    height: 4px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--primary), transparent);
    box-shadow: 0 0 14px rgba(0, 200, 255, 0.5);
    margin-top: 14px;
  }
  .status-live {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    background: rgba(255, 77, 106, 0.12);
    border: 1px solid rgba(255, 77, 106, 0.40);
    color: #ff8ea2;
    border-radius: 999px;
    font-size: 13px;
    padding: 4px 12px;
    font-weight: 600;
  }
  .status-live .dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #ff4d6a;
    box-shadow: 0 0 0 0 rgba(255, 77, 106, 0.5);
    animation: livePulse 1.5s infinite;
  }
  @keyframes livePulse {
    0% {
      box-shadow: 0 0 0 0 rgba(255, 77, 106, 0.7);
    }
    70% {
      box-shadow: 0 0 0 8px rgba(255, 77, 106, 0);
    }
    100% {
      box-shadow: 0 0 0 0 rgba(255, 77, 106, 0);
    }
  }
  .status-upcoming {
    display: inline-flex;
    align-items: center;
    color: var(--accent);
    background: rgba(255, 138, 0, 0.12);
    border: 1px solid rgba(255, 138, 0, 0.28);
    border-radius: 999px;
    font-size: 13px;
    padding: 4px 12px;
    font-weight: 600;
  }
  .status-replay {
    display: inline-flex;
    align-items: center;
    color: #2CE5A6;
    background: rgba(44, 229, 166, 0.10);
    border: 1px solid rgba(44, 229, 166, 0.25);
    border-radius: 999px;
    font-size: 13px;
    padding: 4px 12px;
    font-weight: 600;
  }
  .match-score {
    font-family: "Manrope", "PingFang SC", sans-serif;
    font-variant-numeric: tabular-nums;
    color: var(--gold);
    font-weight: 700;
  }
  .feature-card {
    padding: 26px;
  }
  .feature-num {
    font-family: "Manrope", sans-serif;
    font-size: 13px;
    font-weight: 700;
    color: var(--primary);
  }
  .feature-title {
    color: var(--text-heading);
    font-size: 18px;
    font-weight: 700;
    margin: 12px 0 8px;
  }
  .feature-text {
    font-size: 14px;
    color: #aebdd1;
    line-height: 1.85;
  }
  .step-list {
    display: flex;
    flex-direction: column;
    gap: 22px;
    counter-reset: step;
  }
  .step-card {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    padding: 22px 24px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: border-color .2s, background .2s;
  }
  .step-card:hover {
    background: rgba(255, 255, 255, 0.07);
    border-color: rgba(0, 200, 255, 0.32);
  }
  .step-index {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    min-width: 44px;
    height: 44px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(0, 200, 255, 0.22), rgba(0, 123, 255, 0.16));
    border: 1px solid rgba(0, 200, 255, 0.34);
    color: var(--primary);
    font-weight: 800;
    flex-shrink: 0;
  }
  .tag-chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    padding: 8px 16px;
    border-radius: 999px;
    color: #cfe6f4;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.05);
    transition: all .2s ease;
  }
  .tag-chip:hover {
    color: var(--primary);
    border-color: rgba(0, 200, 255, 0.45);
    background: rgba(0, 200, 255, 0.08);
  }
  .notice-row {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    padding: 20px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }
  .notice-row:first-child {
    padding-top: 0;
  }
  .notice-row:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }
  .notice-icon {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 30px;
    height: 30px;
    border-radius: 10px;
    background: rgba(0, 200, 255, 0.12);
    color: var(--primary);
    border: 1px solid rgba(0, 200, 255, 0.16);
    flex-shrink: 0;
  }
  .notice-title {
    color: var(--text-heading);
    font-weight: 600;
    font-size: 15px;
  }
  .notice-text {
    font-size: 14px;
    color: var(--text-body);
    line-height: 1.75;
  }
  .faq-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.10);
    padding: 0 2px;
  }
  .faq-item summary {
    list-style: none;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 18px;
    padding: 18px 0;
    align-items: flex-start;
  }
  .faq-item summary::-webkit-details-marker {
    display: none;
  }
  .faq-q {
    color: var(--text-heading);
    font-size: 16px;
    font-weight: 600;
    line-height: 1.6;
  }
  .faq-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 1px solid rgba(0, 200, 255, 0.45);
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    line-height: 1;
    flex-shrink: 0;
    transition: transform .25s, background .25s;
  }
  .faq-item[open] .faq-icon {
    transform: rotate(45deg);
    background: rgba(0, 200, 255, 0.15);
  }
  .faq-a {
    color: #b2c0d4;
    font-size: 15px;
    line-height: 1.85;
    padding: 0 34px 22px 0;
  }
  .cta-band {
    border-radius: 26px;
    padding: 48px 40px;
    background-image: linear-gradient(130deg, rgba(0, 123, 255, 0.26), rgba(0, 200, 255, 0.06) 45%, rgba(255, 138, 0, 0.08)), url('/assets/images/backpic/back-3.webp');
    background-size: cover;
    background-position: center;
    border: 1px solid rgba(0, 200, 255, 0.24);
    position: relative;
    overflow: hidden;
  }
  .cta-band::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 85% 20%, rgba(0, 200, 255, 0.12), transparent 42%);
    pointer-events: none;
  }
  .cta-title {
    color: #fff;
    font-size: clamp(24px, 3vw, 34px);
    font-weight: 800;
    line-height: 1.4;
    position: relative;
    z-index: 2;
  }
  .cta-desc {
    color: #d7e5f3;
    max-width: 680px;
    position: relative;
    z-index: 2;
  }
  .cta-actions {
    position: relative;
    z-index: 2;
  }
  .site-footer {
    background: #07111C;
    border-top: 1px solid rgba(255, 255, 255, 0.07);
    margin-top: 60px;
  }
  .footer-top {
    display: grid;
    grid-template-columns: 1.5fr .8fr .9fr .8fr;
    gap: 36px;
    padding: 50px 0 38px;
  }
  .footer-logo-card {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }
  .footer-intro {
    max-width: 260px;
    color: #9AA8BA;
    font-size: 14px;
    line-height: 1.8;
    margin: 0;
  }
  .footer-domain {
    display: inline-block;
    color: #5B6B7C;
    font-size: 13px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 999px;
    padding: 4px 12px;
  }
  .footer-links-title {
    color: var(--text-heading);
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 14px;
  }
  .footer-col ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
  }
  .footer-col a {
    color: #9AA8BA;
    font-size: 14px;
    transition: color .2s ease;
  }
  .footer-col a:hover {
    color: var(--primary);
  }
  .footer-bottom {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.07);
    padding: 20px 0;
    color: #5B6B7C;
    font-size: 13px;
  }
  .footer-bottom p {
    margin: 0;
  }
  @media (max-width: 1024px) {
    .header-flex {
      height: 68px;
    }
    .main-nav {
      position: absolute;
      top: 68px;
      left: 0;
      right: 0;
      background: rgba(9, 17, 28, 0.98);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
      flex-direction: column;
      align-items: stretch;
      gap: 6px;
      padding: 14px 20px 20px;
      border-bottom: 1px solid rgba(0, 200, 255, 0.14);
      display: none;
      border-radius: 0 0 18px 18px;
      box-shadow: 0 32px 54px rgba(0, 0, 0, 0.32);
    }
    .main-nav.open {
      display: flex;
    }
    .nav-link {
      padding: 12px 4px;
      font-size: 16px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }
    .nav-link:last-child {
      border-bottom: none;
    }
    .nav-link::after {
      bottom: 8px;
    }
    .btn-outline {
      display: none;
    }
    .nav-burger {
      display: inline-flex;
    }
    .footer-top {
      grid-template-columns: 1fr 1fr;
      gap: 30px;
    }
  }
  @media (max-width: 768px) {
    .section {
      padding: 56px 0;
    }
    .hero {
      padding: 52px 0 48px;
    }
    .hero-left,
    .hero-right {
      max-width: 100%;
    }
    .hero-title {
      font-size: 34px;
    }
    .hero-status-panel {
      max-width: 100%;
      margin-top: 28px;
    }
    .step-card {
      padding: 18px;
    }
    .cta-band {
      padding: 32px 22px;
    }
    .footer-bottom {
      display: block;
    }
  }
  @media (max-width: 520px) {
    .footer-top {
      grid-template-columns: 1fr;
      gap: 24px;
      padding: 34px 0 24px;
    }
    .logo-name {
      font-size: 19px;
    }
    .logo small {
      display: none;
    }
    .btn {
      min-height: 40px;
      padding: 0 16px;
      font-size: 14px;
    }
    .nav-actions .btn-outline {
      display: inline-flex;
    }
    .hero-title {
      font-size: 30px;
    }
  }

/* roulang page: category2 */
:root{
  --bg-deep:#0B1420;
  --bg-soft:#111E2E;
  --panel:#0F1A29;
  --primary:#00C8FF;
  --primary-2:#007BFF;
  --accent:#FF8A00;
  --gold:#F5C842;
  --danger:#FF4D6A;
  --ok:#2CE5A6;
  --text-main:#F2F7FD;
  --text-body:#A7B6CB;
  --text-dim:#64748B;
  --white-4:rgba(255,255,255,.04);
  --white-6:rgba(255,255,255,.06);
  --white-10:rgba(255,255,255,.10);
  --border:rgba(255,255,255,.10);
  --radius-xl:22px;
  --radius-lg:16px;
  --radius-md:12px;
  --shadow-glow:0 0 20px rgba(0,200,255,.32);
  --shadow-glow-lg:0 0 36px rgba(0,200,255,.50);
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg-deep);
  color:var(--text-body);
  font-family:"PingFang SC","HarmonicOS Sans SC","Microsoft YaHei","Inter",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-2;
  background:
    radial-gradient(900px 480px at 85% -5%,rgba(0,140,255,.16),transparent 60%),
    radial-gradient(720px 420px at -5% 25%,rgba(0,200,255,.08),transparent 55%),
    var(--bg-deep);
}
a{color:inherit;text-decoration:none;transition:color .25s ease;}
img{display:block;max-width:100%;}
button{font-family:inherit;cursor:pointer;}
ul,ol{list-style:none;}
h1,h2,h3,h4{color:var(--text-main);line-height:1.35;font-weight:800;letter-spacing:.01em;}
h2.section-title,h3.block-heading{font-size:clamp(26px,3.2vw,36px);display:flex;align-items:center;gap:14px;}
.title-mark{width:34px;height:4px;border-radius:999px;flex:0 0 auto;background:linear-gradient(90deg,var(--primary),transparent);}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

.section{padding:78px 0;position:relative;}
.section-soft{background:rgba(255,255,255,.025);border-top:1px solid rgba(255,255,255,.05);border-bottom:1px solid rgba(255,255,255,.05);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.06em;color:var(--primary);
  border:1px solid rgba(0,200,255,.28);
  background:rgba(0,200,255,.07);
  border-radius:999px;padding:5px 14px;
  font-weight:600;text-transform:uppercase;margin-bottom:16px;
}
.eyebrow .pulse-dot{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 0 rgba(44,229,166,.7);animation:pulse 1.8s infinite;}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(44,229,166,.5);}
  70%{box-shadow:0 0 0 7px rgba(44,229,166,0);}
  100%{box-shadow:0 0 0 0 rgba(44,229,166,0);}
}

.glass-card{
  background:rgba(255,255,255,.055);
  border:1px solid var(--border);
  border-radius:var(--radius-xl);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07);
  transition:transform .3s ease,border-color .3s ease,background .3s ease,box-shadow .3s ease;
}
.glass-card:hover{
  background:rgba(255,255,255,.085);
  border-color:rgba(0,200,255,.35);
  transform:translateY(-3px);
  box-shadow:0 18px 42px rgba(0,0,0,.26),inset 0 1px 0 rgba(255,255,255,.10);
}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:999px;font-weight:700;font-size:15px;
  border:1px solid transparent;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease,filter .25s ease;
  white-space:nowrap;
}
.btn-primary{
  color:#03121F;
  background:linear-gradient(135deg,#00E0FF,#0084FF);
  box-shadow:0 0 20px rgba(0,200,255,.33);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 32px rgba(0,200,255,.55);}
.btn-primary:active{transform:scale(.98);filter:brightness(.94);}
.btn-outline{
  color:var(--primary);
  border:1px solid rgba(0,200,255,.65);
  background:rgba(0,200,255,.06);
}
.btn-outline:hover{background:rgba(0,200,255,.14);border-color:var(--primary);transform:translateY(-2px);}
.btn-outline:focus-visible,.btn-primary:focus-visible,.nav-link:focus-visible,.chip:focus-visible,.faq-trigger:focus-visible{
  outline:3px solid rgba(0,200,255,.55);outline-offset:3px;
}
.btn-ghost{
  border:1px solid rgba(255,255,255,.18);
  color:var(--text-main);
  background:rgba(255,255,255,.06);
}
.btn-ghost:hover{background:rgba(255,255,255,.13);}

.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(11,20,32,.92);
  backdrop-filter:blur(15px);
  -webkit-backdrop-filter:blur(15px);
  border-bottom:1px solid rgba(255,255,255,.07);
  box-shadow:0 1px 0 rgba(0,200,255,.10),0 8px 24px rgba(0,0,0,.25);
}
.header-flex{display:flex;align-items:center;justify-content:space-between;gap:18px;height:78px;}
.logo{display:inline-flex;align-items:center;gap:10px;}
.logo-mark{
  width:40px;height:40px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:radial-gradient(circle,rgba(0,200,255,.22),rgba(0,200,255,.04));
  border:1px solid rgba(0,200,255,.45);
  box-shadow:0 0 16px rgba(0,200,255,.18);
}
.logo-name{
  font-size:21px;font-weight:900;color:var(--text-main);letter-spacing:.02em;
}
.logo-name small{
  display:block;font-size:10px;font-weight:600;letter-spacing:.22em;color:var(--primary);
  line-height:1.2;margin-top:-1px;
}
.main-nav{display:flex;align-items:center;gap:27px;}
.nav-link{
  position:relative;
  font-size:15px;font-weight:700;color:#A8B8CC;
  padding:12px 2px;line-height:1.4;
}
.nav-link:hover{color:#E9F4FF;}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:4px;height:2px;
  border-radius:99px;background:linear-gradient(90deg,var(--primary),transparent);
  opacity:0;transition:opacity .25s ease,box-shadow .25s ease;
}
.nav-link:hover::after{opacity:.5;}
.nav-link.active{color:#FFFFFF;}
.nav-link.active::after{opacity:1;box-shadow:0 0 12px rgba(0,200,255,.62);}
.nav-actions{display:flex;align-items:center;gap:10px;}
.nav-burger{display:none;border:0;background:transparent;flex-direction:column;gap:5px;padding:9px 6px;border-radius:8px;}
.nav-burger span{display:block;width:22px;height:2px;background:#C9D9E8;border-radius:4px;transition:transform .3s ease,opacity .3s ease;}
.nav-burger:hover span{background:var(--primary);}

/* hero */
.page-hero{
  min-height:520px;
  padding:84px 0;
  display:flex;align-items:center;position:relative;overflow:hidden;
  border-bottom:1px solid rgba(255,255,255,.05);
}
.page-hero::before{content:"";position:absolute;inset:0;background:radial-gradient(760px 320px at 70% 18%,rgba(0,200,255,.18),transparent 65%);pointer-events:none;}
.page-hero .hero-inner{position:relative;z-index:2;max-width:860px;}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--text-dim);margin-bottom:22px;
}
.crumb a:hover{color:var(--primary);}
.crumb i{font-size:11px;opacity:.7;}
.hero-title{
  font-size:clamp(36px,6vw,58px);
  letter-spacing:.01em;
  line-height:1.15;
  color:#FFFFFF;
}
.hero-title .soft-highlight{
  color:transparent;
  background:linear-gradient(100deg,#FFFFFF 20%,#00C8FF 100%);
  -webkit-background-clip:text;background-clip:text;
}
.hero-lead{
  margin-top:22px;font-size:17px;line-height:1.9;color:#B0C1D6;max-width:760px;
}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:11px;margin-top:30px;
}
.meta-item{
  display:inline-flex;align-items:center;gap:9px;
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.12);
  backdrop-filter:blur(8px);
  border-radius:999px;
  padding:9px 17px;
  font-size:14px;font-weight:600;color:#D6E3F2;
}
.meta-item i{width:19px;height:19px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;background:rgba(0,200,255,.16);color:var(--primary);font-size:11px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}

/* latest news */
.news-topbar{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:16px;margin-bottom:38px;
}
.section-subtitle{
  color:#8FA5BD;font-size:16px;margin-top:10px;line-height:1.8;
}
.live-hint{
  font-size:14px;color:#C0CDDF;
  display:inline-flex;align-items:center;gap:9px;background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);border-radius:999px;padding:9px 17px;
}
.live-hint .live-dot{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 8px var(--ok);animation:pulse 1.6s infinite;}
.news-feature-grid{
  display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);
  gap:20px;align-items:stretch;
}
.news-hero-card{overflow:hidden;display:flex;flex-direction:column;min-height:100%;}
.news-hero-card .hero-art{position:relative;aspect-ratio:16/10;overflow:hidden;display:block;}
.hero-art img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease;}
.news-hero-card:hover .hero-art img{transform:scale(1.045)}
.hero-art::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,20,32,0.02) 42%,rgba(11,20,32,.85) 100%);}
.art-tags{
  position:absolute;left:18px;top:16px;z-index:3;
  display:flex;gap:8px;flex-wrap:wrap;
}
.pill-tag{
  display:inline-flex;align-items:center;gap:7px;
  background:rgba(11,20,32,.68);backdrop-filter:blur(8px);
  border:1px solid rgba(255,255,255,.14);
  color:#E5EEFA;font-size:12px;font-weight:600;
  padding:5px 12px;border-radius:999px;
}
.pill-tag.gold{color:var(--gold);border-color:rgba(245,200,66,.4);}
.hero-art .art-live-corner{
  position:absolute;bottom:15px;right:17px;z-index:3;
  font-size:12px;font-weight:700;letter-spacing:.1em;
  background:rgba(11,20,32,.7);border:1px solid rgba(44,229,166,.35);
  color:var(--ok);padding:5px 13px;border-radius:999px;
}
.hero-art .art-live-corner i{margin-right:5px;}
.news-hero-card .art-body{padding:24px;}
.art-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  font-size:13px;color:var(--text-dim);margin-top:12px;
}
.art-meta i{color:var(--primary);font-size:12px;margin-right:4px;}
.art-title{font-size:clamp(20px,2.4vw,27px);font-weight:800;color:#FFFFFF;line-height:1.45;margin:6px 0 10px;}
.art-summary{color:#A3B5C8;font-size:15px;line-height:1.85;}
.read-more{
  margin-top:16px;display:inline-flex;align-items:center;gap:9px;
  color:var(--primary);font-weight:700;font-size:14px;
}
.read-more i{transition:transform .25s ease;}
.read-more:hover i{transform:translateX(5px);}

.news-side-list{display:flex;flex-direction:column;gap:16px;justify-content:space-between;}
.news-mini{
  display:flex;gap:15px;padding:13px;border-radius:18px;align-items:flex-start;
  position:relative;
}
.news-mini .mini-thumb{flex:0 0 104px;width:104px;height:96px;border-radius:14px;overflow:hidden;background:#0E1A28;}
.news-mini .mini-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.news-mini:hover .mini-thumb img{transform:scale(1.08);}
.mini-content{min-width:0;flex:1;}
.mini-label{
  display:inline-block;font-size:11px;font-weight:700;letter-spacing:.08em;
  color:var(--primary);background:rgba(0,200,255,.09);
  border:1px solid rgba(0,200,255,.22);
  padding:2px 9px;border-radius:999px;margin-bottom:6px;
}
.mini-content h3{
  font-size:16px;font-weight:700;color:#E9F2FC;line-height:1.55;
  overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
}
.mini-content h3:hover{color:var(--primary);}
.mini-date{font-size:12px;color:var(--text-dim);margin-top:8px;display:flex;align-items:center;gap:6px;}

/* insight grid */
.point-grid{display:grid;grid-template-columns:1.18fr .9fr 1.05fr;gap:22px;align-items:start;margin-top:8px;}
.point-card{
  padding:30px 28px;border-radius:24px;
  position:relative;overflow:hidden;
}
.point-card:nth-child(2){margin-top:22px;}
.point-card .point-num{
  position:absolute;right:8px;top:4px;
  font-size:84px;line-height:1;font-weight:900;
  color:rgba(0,200,255,.12);
  user-select:none;
}
.point-title{font-size:20px;font-weight:800;color:#FFFFFF;display:flex;align-items:center;gap:12px;}
.point-title .p-icon{
  width:40px;height:40px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(0,200,255,.22),rgba(0,123,255,.10));
  border:1px solid rgba(0,200,255,.28);
  color:var(--primary);font-size:17px;
}
.point-text{color:#A0B2C6;font-size:15px;line-height:1.9;margin-top:15px;}
.point-hint{display:block;margin-top:18px;font-size:13px;color:var(--text-dim);}
.point-hint i{color:var(--accent);margin-right:5px;}

/* topics */
.topic-panel-grid{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);
  gap:22px;align-items:start;
}
.panel-head{
  padding:21px 24px;
  border-bottom:1px solid rgba(255,255,255,.09);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
}
.panel-head h3{font-size:19px;font-weight:800;}
.panel-head i{color:var(--primary);font-size:18px;}
.panel-body{padding:24px;}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.13);
  color:#B4C5D8;font-size:14px;font-weight:600;
  padding:8px 17px;border-radius:999px;
  transition:.3s ease;
}
.chip:hover{
  color:#001b29;background:var(--primary);
  border-color:var(--primary);
  box-shadow:0 4px 19px rgba(0,200,255,.34);
  transform:translateY(-2px);
}
.rank-list{counter-reset:rank;}
.rank-item{
  display:flex;align-items:center;gap:14px;
  padding:14px 2px;
  border-bottom:1px dashed rgba(255,255,255,.08);
}
.rank-item:last-child{border-bottom:0;}
.rank-no{
  width:30px;height:30px;flex:0 0 auto;
  border-radius:10px;
  background:rgba(0,200,255,.1);
  border:1px solid rgba(0,200,255,.22);
  color:var(--primary);
  font-weight:800;font-size:13px;
  display:inline-flex;align-items:center;justify-content:center;
}
.rank-item.r2 .rank-no,.rank-item.r3 .rank-no{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.15);color:#C6D5E6;}
.rank-main{flex:1;min-width:0;}
.rank-title{font-size:15px;color:#DDE8F5;font-weight:700;line-height:1.55;transition:.25s;}
.rank-item:hover .rank-title{color:var(--primary);}
.rank-tag{font-size:12px;color:var(--text-dim);display:inline-flex;align-items:center;gap:5px;margin-top:2px;}
.rank-tag i{font-size:11px;color:var(--primary);}

/* broadcast cta */
.broadcast-outer{
  position:relative;border-radius:26px;overflow:hidden;
  padding:62px 48px;
  border:1px solid rgba(255,255,255,.13);
  background-size:cover;background-position:center;
  box-shadow:0 24px 64px rgba(0,0,0,.38);
}
.broadcast-outer::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(11,20,32,.96) 10%,rgba(11,20,32,.75) 65%,rgba(11,20,32,.28) 100%);}
.broadcast-outer .bc-inner{position:relative;z-index:2;max-width:660px;}
.bc-kicker{
  font-size:13px;font-weight:700;letter-spacing:.12em;
  display:inline-flex;align-items:center;gap:8px;color:var(--gold);
  background:rgba(245,200,66,.08);
  border:1px solid rgba(245,200,66,.26);
  border-radius:999px;padding:6px 14px;
}
.broadcast-outer h2{
  margin-top:20px;font-size:clamp(28px,4vw,42px);
  color:#fff;line-height:1.25;
}
.broadcast-outer p{color:#bccadd;font-size:16px;line-height:1.9;margin-top:15px;max-width:620px;}
.bc-buttons{display:flex;flex-wrap:wrap;gap:13px;margin-top:30px;}
.bc-mini-remark{display:flex;flex-wrap:wrap;gap:16px;margin-top:24px;font-size:13px;color:#8B9AAF;}
.bc-mini-remark span{display:inline-flex;align-items:center;gap:6px;}
.bc-mini-remark i{color:var(--ok);}

/* faq */
.faq-wrap{max-width:860px;margin:32px auto 0;}
.faq-item{
  border-bottom:1px solid rgba(255,255,255,.10);
  border-radius:14px;
}
.faq-item[open]{background:rgba(255,255,255,.025);border-bottom-color:rgba(0,200,255,.25);}
.faq-item summary{
  list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:21px 18px 21px 6px;
  cursor:pointer;font-weight:700;color:#E5EEFA;font-size:16px;
  transition:color .25s ease;
}
.faq-item summary:hover{color:var(--primary);}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  width:26px;height:26px;flex:0 0 auto;
  border:1px solid rgba(0,200,255,.4);
  color:var(--primary);
  border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  transition:transform .35s ease,color .35s ease,border-color .35s ease;
  font-size:14px;
}
.faq-item[open] .faq-icon{transform:rotate(45deg);color:var(--primary);border-color:var(--primary);box-shadow:0 0 14px rgba(0,200,255,.3);}
.faq-answer{padding:0 18px 23px 6px;color:#A5B4C8;line-height:1.9;}
.faq-answer a{color:var(--primary);font-weight:600;}
.faq-answer a:hover{text-decoration:underline;}

/* account cta / prefooter */
.account-ribbon{
  border-radius:24px;
  padding:34px 38px;
  background:linear-gradient(120deg,rgba(0,200,255,.12),rgba(11,20,32,.85) 42%,rgba(0,123,255,.12));
  border:1px solid rgba(0,200,255,.28);
  display:flex;align-items:center;justify-content:space-between;
  flex-wrap:wrap;gap:24px;position:relative;overflow:hidden;
}
.account-ribbon::after{
  content:"LIVE";position:absolute;right:-8px;bottom:-22px;
  font-size:112px;font-weight:900;
  color:rgba(0,200,255,.05);
  pointer-events:none;letter-spacing:-0.03em;line-height:1;
}
.account-text h2{font-size:clamp(23px,3vw,33px);color:#fff;}
.account-text p{font-size:15px;color:#AABCD1;margin-top:7px;}
.account-cta-btn{
  position:relative;z-index:2;display:flex;gap:12px;flex-wrap:wrap;
}

/* footer */
.site-footer{
  background:#0B1420;
  border-top:1px solid rgba(0,200,255,.14);
  padding-top:58px;
}
.footer-top{
  display:grid;
  grid-template-columns:1.55fr 1fr 1fr 1fr;
  gap:42px;
  padding-bottom:38px;
}
.footer-logo-card .logo{margin-bottom:16px;}
.footer-intro{font-size:14px;line-height:1.8;color:#8A9CB2;margin-top:12px;max-width:360px;}
.footer-domain{
  display:inline-flex;align-items:center;gap:7px;
  margin-top:13px;font-size:13px;color:#6A7F99;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);
  border-radius:999px;padding:4px 13px;
}
.footer-col h4{color:#E4EFFB;font-size:15px;margin-bottom:16px;font-weight:800;}
.footer-col ul li{margin-bottom:12px;}
.footer-col a{color:#8DA1B8;font-size:14px;transition:.25s;}
.footer-col a:hover{color:var(--primary);padding-left:4px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:24px 0;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  color:#5E7088;font-size:13px;
}

@media (max-width:1024px){
  .main-nav{gap:18px;}
  .footer-top{grid-template-columns:1.2fr 1fr 1fr;}
}
@media (max-width:900px){
  .nav-burger{display:flex;}
  .main-nav{
    position:fixed;top:0;bottom:0;right:-340px;z-index:100;
    width:min(320px,86vw);
    background:rgba(10,17,28,.98);
    border-left:1px solid rgba(0,200,255,.2);
    flex-direction:column;align-items:stretch;justify-content:flex-start;
    gap:6px;padding:76px 22px 24px;
    transition:right .35s ease;
  }
  .main-nav.nav-open{right:0;}
  .nav-link{padding:14px 10px;border-radius:12px;font-size:17px;}
  .nav-link::after{display:none;}
  .nav-link.active,.nav-link:hover{background:rgba(0,200,255,.09);color:#fff;}
  .nav-actions .btn-outline{display:none;}
  .news-feature-grid{grid-template-columns:1fr;}
  .point-grid{grid-template-columns:1fr 1fr;}
  .point-card:nth-child(2){margin-top:0;}
  .topic-panel-grid{grid-template-columns:1fr;}
  .footer-top{grid-template-columns:1fr 1fr;}
  .broadcast-outer{padding:44px 25px;}
  .account-ribbon{padding:28px 22px;}
}
@media (max-width:600px){
  .section{padding:60px 0;}
  .logo-name{font-size:18px;}
  .nav-actions .btn{height:40px;padding:0 16px;font-size:13px;}
  .point-grid{grid-template-columns:1fr;}
  .footer-top{grid-template-columns:1fr;}
  .page-hero{min-height:460px;padding:62px 0;}
  .hero-lead{font-size:16px;}
  .news-mini .mini-thumb{flex:0 0 76px;width:76px;height:84px;}
  .broadcast-outer{padding:34px 20px;}
}

/* roulang page: category3 */
:root {
      --bg-deep: #0B1420;
      --bg-soft: #111E2E;
      --panel: rgba(255, 255, 255, 0.06);
      --panel-hover: rgba(255, 255, 255, 0.09);
      --border: rgba(255, 255, 255, 0.10);
      --border-bright: rgba(0, 200, 255, 0.35);
      --primary: #00C8FF;
      --primary-dark: #007BFF;
      --accent: #FF8A00;
      --gold: #F5C842;
      --text-main: #F2F7FD;
      --text-muted: #A7B6CB;
      --text-weak: #64748B;
      --radius-xl: 24px;
      --radius-lg: 20px;
      --radius-md: 14px;
      --shadow-glow: 0 0 20px rgba(0, 229, 255, 0.35);
      --shadow-glow-hover: 0 0 32px rgba(0, 229, 255, 0.55);
    }

    *,
    *::before,
    *::after {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      background: var(--bg-deep);
      color: var(--text-main);
      font-family: "PingFang SC", "HarmonicOS Sans SC", "Microsoft YaHei", Inter, sans-serif;
      line-height: 1.8;
      -webkit-font-smoothing: antialiased;
      text-rendering: optimizeLegibility;
    }

    img {
      display: block;
      max-width: 100%;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

    ul,
    ol,
    dl,
    dd,
    figure,
    blockquote,
    p {
      margin: 0;
    }

    button,
    input,
    select,
    textarea {
      font: inherit;
    }

    a,
    button,
    summary,
    input {
      -webkit-tap-highlight-color: transparent;
    }

    a:focus-visible,
    button:focus-visible,
    summary:focus-visible {
      outline: 3px solid rgba(0, 200, 255, 0.5);
      outline-offset: 3px;
      border-radius: 10px;
    }

    ::selection {
      background: rgba(0, 200, 255, 0.30);
      color: #fff;
    }

    .container {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    .section-pad {
      padding: 90px 0;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 80;
      background: rgba(11, 20, 32, 0.92);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(0, 200, 255, 0.22);
      box-shadow: 0 12px 42px rgba(0, 0, 0, 0.25);
    }

    .site-header::after {
      content: "";
      display: block;
      height: 1px;
      background: linear-gradient(90deg, rgba(0, 200, 255, 0.85), rgba(0, 200, 255, 0) 60%);
      position: absolute;
      left: 0;
      right: 0;
      bottom: -1px;
    }

    .header-flex {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      min-height: 78px;
    }

    .logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }

    .logo-mark {
      display: grid;
      place-items: center;
      width: 40px;
      height: 40px;
      border-radius: 12px;
      background: rgba(0, 200, 255, 0.08);
      border: 1px solid rgba(0, 200, 255, 0.25);
      box-shadow: 0 0 16px rgba(0, 200, 255, 0.12);
      transition: box-shadow 0.3s ease, transform 0.3s ease;
    }

    .logo:hover .logo-mark {
      transform: translateY(-1px);
      box-shadow: 0 0 24px rgba(0, 200, 255, 0.28);
    }

    .logo-name {
      display: block;
      font-size: 20px;
      font-weight: 800;
      color: var(--text-main);
      letter-spacing: 0.02em;
      line-height: 1.2;
    }

    .logo-name small {
      display: block;
      font-size: 10px;
      font-weight: 600;
      color: var(--primary);
      letter-spacing: 0.18em;
      line-height: 1.4;
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 4px;
    }

    .nav-link {
      display: inline-flex;
      align-items: center;
      min-height: 44px;
      padding: 8px 14px;
      border-radius: 12px;
      font-size: 15px;
      font-weight: 600;
      color: var(--text-muted);
      position: relative;
      transition: color 0.25s ease, background 0.25s ease;
    }

    .nav-link:hover {
      color: var(--primary);
      background: rgba(0, 200, 255, 0.07);
    }

    .nav-link.active {
      color: #ffffff;
      background: rgba(0, 200, 255, 0.08);
    }

    .nav-link.active::after {
      content: "";
      position: absolute;
      left: 14px;
      right: 14px;
      bottom: 3px;
      height: 2px;
      border-radius: 999px;
      background: var(--primary);
      box-shadow: 0 0 10px var(--primary);
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }

    .nav-burger {
      display: none;
      width: 42px;
      height: 42px;
      border-radius: 12px;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid rgba(255, 255, 255, 0.10);
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 5px;
      cursor: pointer;
    }

    .nav-burger span {
      width: 18px;
      height: 2px;
      background: var(--text-main);
      border-radius: 99px;
      transition: transform 0.25s ease, opacity 0.25s ease;
    }

    .nav-burger.open span:nth-child(1) {
      transform: translateY(7px) rotate(45deg);
    }

    .nav-burger.open span:nth-child(2) {
      opacity: 0;
    }

    .nav-burger.open span:nth-child(3) {
      transform: translateY(-7px) rotate(-45deg);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      height: 46px;
      padding: 0 26px;
      border-radius: 999px;
      font-weight: 700;
      font-size: 15px;
      line-height: 1;
      border: 1px solid transparent;
      cursor: pointer;
      transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
      white-space: nowrap;
    }

    .btn-primary {
      background: linear-gradient(135deg, #00C8FF, #007BFF);
      color: #061320;
      box-shadow: var(--shadow-glow);
    }

    .btn-primary:hover {
      box-shadow: var(--shadow-glow-hover);
      transform: translateY(-2px);
      filter: brightness(1.06);
    }

    .btn-primary:active {
      transform: translateY(0) scale(0.98);
      filter: brightness(0.96);
    }

    .btn-outline {
      background: rgba(0, 200, 255, 0.05);
      border-color: rgba(0, 200, 255, 0.65);
      color: var(--primary);
    }

    .btn-outline:hover {
      background: rgba(0, 200, 255, 0.12);
      box-shadow: 0 0 20px rgba(0, 200, 255, 0.18);
      transform: translateY(-2px);
      color: #ffffff;
    }

    .btn-outline:active {
      transform: translateY(0) scale(0.98);
    }

    .btn-sm {
      height: 38px;
      padding: 0 18px;
      font-size: 14px;
    }

    .page-hero {
      position: relative;
      display: flex;
      align-items: center;
      min-height: 620px;
      padding: 96px 0 80px;
      background-color: var(--bg-deep);
      background-image: url("/assets/images/backpic/back-2.webp"), linear-gradient(105deg, rgba(11, 20, 32, 0.94) 8%, rgba(11, 20, 32, 0.84) 60%, rgba(11, 20, 32, 0.92));
      background-size: cover;
      background-position: center;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      overflow: hidden;
    }

    .page-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        radial-gradient(ellipse at 18% 32%, rgba(0, 200, 255, 0.18), transparent 48%),
        radial-gradient(ellipse at 82% 86%, rgba(0, 123, 255, 0.16), transparent 42%);
      pointer-events: none;
    }

    .page-hero .container {
      position: relative;
      z-index: 2;
    }

    .hero-breadcrumb {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      color: var(--text-weak);
      margin-bottom: 30px;
    }

    .hero-breadcrumb a {
      color: var(--text-muted);
      transition: color 0.2s ease;
    }

    .hero-breadcrumb a:hover {
      color: var(--primary);
    }

    .hero-breadcrumb svg {
      width: 14px;
      height: 14px;
      opacity: 0.7;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      padding: 7px 16px;
      border-radius: 999px;
      border: 1px solid rgba(0, 200, 255, 0.35);
      background: rgba(0, 200, 255, 0.06);
      color: var(--primary);
      font-size: 13px;
      font-weight: 600;
      margin-bottom: 24px;
    }

    .hero-badge i {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--primary);
      animation: pulse-dot 1.8s infinite;
    }

    @keyframes pulse-dot {
      0%, 100% { box-shadow: 0 0 0 0 rgba(0, 200, 255, 0.55); }
      55% { box-shadow: 0 0 0 7px rgba(0, 200, 255, 0); }
    }

    .hero-title {
      font-size: clamp(34px, 5.2vw, 60px);
      font-weight: 800;
      line-height: 1.16;
      letter-spacing: -0.01em;
      max-width: 14em;
      margin-bottom: 24px;
      color: var(--text-main);
    }

    .hero-title span {
      color: var(--primary);
      text-shadow: 0 0 22px rgba(0, 200, 255, 0.35);
    }

    .hero-sub {
      max-width: 620px;
      font-size: 17px;
      line-height: 1.9;
      color: var(--text-muted);
      margin-bottom: 36px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 16px;
      margin-bottom: 48px;
    }

    .hero-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 18px;
      padding-top: 2px;
    }

    .hero-meta span {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      color: var(--text-muted);
    }

    .hero-meta svg {
      width: 18px;
      height: 18px;
      color: var(--primary);
    }

    .glass-panel {
      position: relative;
      background: var(--panel);
      border: 1px solid var(--border);
      border-radius: var(--radius-xl);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
      transition: border-color 0.3s ease, background 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
    }

    .glass-panel:hover {
      border-color: var(--border-bright);
      background: var(--panel-hover);
      transform: translateY(-3px);
      box-shadow: 0 18px 42px rgba(0, 0, 0, 0.22), 0 0 24px rgba(0, 200, 255, 0.06);
    }

    .section-head {
      max-width: 860px;
      margin-bottom: 52px;
    }

    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--primary);
      font-size: 14px;
      font-weight: 700;
      letter-spacing: 0.02em;
    }

    .section-tag::before {
      content: "";
      width: 22px;
      height: 2px;
      border-radius: 99px;
      background: var(--primary);
      box-shadow: 0 0 10px rgba(0, 200, 255, 0.55);
    }

    .section-title {
      font-size: clamp(26px, 3.2vw, 40px);
      line-height: 1.3;
      color: var(--text-main);
      margin: 16px 0 14px;
      font-weight: 800;
    }

    .section-copy {
      color: var(--text-muted);
      font-size: 16px;
      line-height: 1.9;
      max-width: 720px;
    }

    .sport-card {
      position: relative;
      overflow: hidden;
      border-radius: var(--radius-xl);
      border: 1px solid var(--border);
      min-height: 300px;
      display: flex;
      align-items: flex-end;
      background: var(--panel);
      transition: border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
    }

    .sport-card:hover {
      border-color: var(--border-bright);
      transform: translateY(-3px);
      box-shadow: 0 20px 48px rgba(0, 0, 0, 0.24);
    }

    .sport-card img {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: 0.82;
      transition: opacity 0.4s ease, transform 0.5s ease;
    }

    .sport-card:hover img {
      opacity: 0.72;
      transform: scale(1.04);
    }

    .sport-card::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(11, 20, 32, 0.08) 0%, rgba(11, 20, 32, 0.55) 55%, rgba(11, 20, 32, 0.94) 100%);
    }

    .sport-content {
      position: relative;
      z-index: 2;
      padding: 28px;
      width: 100%;
    }

    .sport-cat {
      display: inline-block;
      padding: 5px 14px;
      border-radius: 999px;
      background: rgba(0, 200, 255, 0.13);
      border: 1px solid rgba(0, 200, 255, 0.36);
      color: #ffffff;
      font-size: 13px;
      font-weight: 700;
      margin-bottom: 14px;
    }

    .sport-title {
      font-size: 24px;
      font-weight: 800;
      line-height: 1.35;
      color: #ffffff;
      margin-bottom: 8px;
    }

    .sport-text {
      font-size: 15px;
      color: rgba(226, 238, 255, 0.86);
      line-height: 1.8;
      max-width: 560px;
    }

    .sport-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      margin-top: 16px;
      color: var(--primary);
      font-weight: 700;
      font-size: 14px;
    }

    .sport-link svg {
      width: 16px;
      height: 16px;
      transition: transform 0.2s ease;
    }

    .sport-card:hover .sport-link svg {
      transform: translateX(3px);
    }

    .feat-panel {
      padding: 30px;
      min-height: 250px;
    }

    .feat-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 48px;
      height: 48px;
      border-radius: 15px;
      background: rgba(0, 200, 255, 0.1);
      border: 1px solid rgba(0, 200, 255, 0.24);
      color: var(--primary);
      margin-bottom: 22px;
    }

    .feat-icon svg {
      width: 24px;
      height: 24px;
    }

    .feat-title {
      font-size: 20px;
      line-height: 1.4;
      font-weight: 800;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .feat-text {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.85;
    }

    .feat-list {
      list-style: none;
      margin-top: 18px;
      display: grid;
      gap: 10px;
      padding: 0;
    }

    .feat-list li {
      position: relative;
      padding-left: 20px;
      color: var(--text-muted);
      font-size: 14px;
      line-height: 1.7;
    }

    .feat-list li::before {
      content: "";
      position: absolute;
      left: 0;
      top: 0.66em;
      width: 7px;
      height: 7px;
      border-radius: 2px;
      background: var(--primary);
      box-shadow: 0 0 8px rgba(0, 200, 255, 0.4);
    }

    .process-section {
      background: var(--bg-soft);
      border-top: 1px solid rgba(255, 255, 255, 0.05);
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

    .process-list {
      list-style: none;
      padding: 0;
      margin: 0;
      display: grid;
      gap: 24px;
    }

    .process-item {
      position: relative;
      display: grid;
      grid-template-columns: 90px 1fr;
      gap: 22px;
      align-items: start;
      background: rgba(255, 255, 255, 0.035);
      border: 1px solid var(--border);
      border-radius: 22px;
      padding: 28px 30px;
      backdrop-filter: blur(8px);
      transition: background 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
    }

    .process-item:hover {
      background: rgba(255, 255, 255, 0.06);
      border-color: rgba(0, 200, 255, 0.35);
      transform: translateY(-2px);
    }

    .process-num {
      font-size: 56px;
      line-height: 1;
      font-weight: 800;
      color: transparent;
      background: linear-gradient(135deg, #00C8FF, #007BFF);
      -webkit-background-clip: text;
      background-clip: text;
      opacity: 0.95;
    }

    .process-title {
      font-size: 20px;
      font-weight: 800;
      margin-bottom: 8px;
      color: #ffffff;
    }

    .process-text {
      color: var(--text-muted);
      font-size: 15px;
      line-height: 1.85;
    }

    .faq-container {
      max-width: 860px;
      margin: 0 auto;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid var(--border);
      border-radius: 26px;
      padding: 10px 32px;
      backdrop-filter: blur(12px);
    }

    .faq-item {
      border-bottom: 1px solid rgba(255, 255, 255, 0.09);
      padding: 22px 0;
    }

    .faq-item:last-child {
      border-bottom: none;
    }

    .faq-item summary {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      list-style: none;
      cursor: pointer;
      font-size: 16px;
      font-weight: 700;
      color: #e9f3ff;
      line-height: 1.6;
    }

    .faq-item summary::-webkit-details-marker {
      display: none;
    }

    .faq-item summary::marker {
      content: "";
    }

    .faq-icon {
      flex-shrink: 0;
      width: 32px;
      height: 32px;
      border-radius: 10px;
      border: 1px solid rgba(255, 255, 255, 0.2);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      font-style: normal;
      font-weight: 400;
      color: var(--text-muted);
      transition: background 0.25s ease, transform 0.25s ease, color 0.25s ease, border-color 0.25s ease;
    }

    .faq-item details[open] summary .faq-icon,
    .faq-item[open] summary .faq-icon {
      transform: rotate(45deg);
      background: rgba(0, 200, 255, 0.1);
      border-color: var(--primary);
      color: var(--primary);
    }

    .faq-answer {
      padding-top: 14px;
      max-width: 680px;
      color: var(--text-muted);
      font-size: 15px;
      line-height: 1.9;
    }

    .cta-band {
      position: relative;
      overflow: hidden;
      border-radius: 28px;
      border: 1px solid rgba(255, 255, 255, 0.1);
      padding: 66px 54px;
      background-color: var(--bg-soft);
      background-image: linear-gradient(95deg, rgba(11, 20, 32, 0.97) 10%, rgba(11, 20, 32, 0.82) 62%, rgba(0, 200, 255, 0.12)), url("/assets/images/backpic/back-3.webp");
      background-size: cover;
      background-position: center;
    }

    .cta-title {
      font-size: clamp(24px, 3.1vw, 34px);
      line-height: 1.3;
      font-weight: 800;
      color: #ffffff;
      margin: 14px 0 12px;
    }

    .cta-copy {
      max-width: 620px;
      color: var(--text-muted);
      font-size: 16px;
      line-height: 1.9;
    }

    .cta-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-top: 30px;
    }

    .site-footer {
      background: #091220;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding-top: 68px;
    }

    .footer-top {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 36px;
      padding-bottom: 46px;
    }

    .footer-logo-card .logo {
      margin-bottom: 16px;
    }

    .footer-intro {
      color: var(--text-muted);
      font-size: 14px;
      line-height: 1.85;
      max-width: 320px;
      margin-top: 16px;
    }

    .footer-domain {
      display: inline-flex;
      align-items: center;
      margin-top: 16px;
      font-size: 13px;
      color: var(--text-weak);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: 999px;
      padding: 5px 14px;
      background: rgba(255, 255, 255, 0.03);
    }

    .footer-col h4 {
      font-size: 16px;
      color: #f4f9ff;
      font-weight: 800;
      margin-bottom: 14px;
    }

    .footer-col ul {
      list-style: none;
      margin: 0;
      padding: 0;
      display: grid;
      gap: 10px;
    }

    .footer-col a {
      color: #9AA8BA;
      font-size: 14px;
      line-height: 1.7;
      transition: color 0.2s ease;
    }

    .footer-col a:hover {
      color: var(--primary);
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding: 22px 0 26px;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 10px;
      color: #5B6B7C;
      font-size: 13px;
    }

    @media (max-width: 1023.98px) {
      .main-nav {
        position: fixed;
        top: 78px;
        left: 0;
        right: 0;
        display: none;
        flex-direction: column;
        gap: 4px;
        padding: 18px 20px 24px;
        background: rgba(11, 20, 32, 0.97);
        backdrop-filter: blur(18px);
        border-bottom: 1px solid rgba(0, 200, 255, 0.22);
        box-shadow: 0 24px 48px rgba(0, 0, 0, 0.25);
      }

      .main-nav.open {
        display: flex;
      }

      .nav-link,
      .main-nav.open .nav-link {
        font-size: 16px;
        padding: 12px 14px;
        width: 100%;
        min-height: 50px;
      }

      .nav-link.active::after {
        left: 16px;
        right: auto;
        width: 34px;
      }

      .nav-burger {
        display: flex;
      }

      .nav-actions .btn-outline {
        display: none;
      }

      .footer-top {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 767.98px) {
      .section-pad {
        padding: 64px 0;
      }

      .page-hero {
        min-height: 0;
        padding: 70px 0 66px;
      }

      .hero-title {
        font-size: 34px;
      }

      .hero-actions {
        gap: 12px;
      }

      .hero-actions .btn {
        width: 100%;
      }

      .hero-meta {
        display: grid;
        gap: 10px;
      }

      .cta-band {
        padding: 48px 24px;
      }

      .process-item {
        grid-template-columns: 70px 1fr;
        padding: 24px 22px;
      }

      .process-num {
        font-size: 42px;
      }

      .faq-container {
        padding: 4px 20px;
      }

      .footer-top {
        grid-template-columns: 1fr;
        gap: 28px;
      }

      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }

    @media (max-width: 520px) {
      .nav-actions .btn {
        height: 40px;
        padding: 0 16px;
        font-size: 14px;
      }

      .nav-actions .logo-name {
        font-size: 18px;
      }

      .sport-card {
        min-height: 280px;
      }

      .sport-title {
        font-size: 20px;
      }

      .feat-panel {
        padding: 24px;
      }
    }

/* roulang page: category4 */
:root {
            --bg-deep: #0B1420;
            --bg-soft: #111E2E;
            --bg-card: #162232;
            --primary: #00C8FF;
            --primary-deep: #007BFF;
            --accent: #FF8A00;
            --gold: #F5C842;
            --danger: #FF4D6A;
            --success: #2CE5A6;
            --text: #F2F7FD;
            --muted: #A7B6CB;
            --sub: #64748B;
            --faint: #475569;
            --line: rgba(255, 255, 255, 0.1);
            --glass-bg: rgba(255, 255, 255, 0.055);
            --radius: 20px;
            --radius-sm: 14px;
            --shadow-card: 0 18px 40px rgba(0, 0, 0, 0.28);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 96px;
        }

        body {
            margin: 0;
            background:
                radial-gradient(circle at 16% 0%, rgba(0, 200, 255, 0.06), transparent 360px),
                radial-gradient(circle at 84% 14%, rgba(0, 123, 255, 0.07), transparent 320px),
                var(--bg-deep);
            color: var(--muted);
            font-family: "PingFang SC", "HarmonicOS Sans SC", "Microsoft YaHei", "Inter", sans-serif;
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
        }

        body,
        h1,
        h2,
        h3,
        h4,
        p,
        ul,
        ol,
        figure {
            margin: 0;
        }

        ul,
        ol {
            padding: 0;
            list-style: none;
        }

        img {
            max-width: 100%;
            display: block;
        }

        a {
            color: inherit;
            text-decoration: none;
        }

        button {
            background: none;
            border: 0;
            cursor: pointer;
            font: inherit;
            color: inherit;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        section {
            position: relative;
            padding: 92px 0;
        }

        .section-soft {
            background: var(--bg-soft);
        }

        .section-border-top {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .text-primary {
            color: var(--primary);
        }

        .text-accent {
            color: var(--accent);
        }

        .text-white {
            color: var(--text);
        }

        .section-kicker {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: var(--primary);
            font-size: 14px;
            font-weight: 700;
            letter-spacing: 0.08em;
            padding: 6px 16px;
            border: 1px solid rgba(0, 200, 255, 0.34);
            background: rgba(0, 200, 255, 0.07);
            border-radius: 999px;
            margin-bottom: 18px;
        }

        .section-kicker::before {
            content: "";
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 12px rgba(0, 200, 255, 0.8);
        }

        .section-title {
            color: var(--text);
            font-size: clamp(28px, 4vw, 42px);
            line-height: 1.25;
            font-weight: 800;
            letter-spacing: -0.01em;
            margin-bottom: 18px;
        }

        .section-title::after {
            content: "";
            display: block;
            width: 46px;
            height: 3px;
            border-radius: 4px;
            background: linear-gradient(90deg, var(--primary), transparent);
            margin-top: 14px;
        }

        .section-lead {
            color: var(--muted);
            font-size: 17px;
            max-width: 680px;
            line-height: 1.9;
            margin-bottom: 40px;
        }

        .glass-card {
            background: var(--glass-bg);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            -webkit-backdrop-filter: blur(14px);
            backdrop-filter: blur(14px);
            box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06), var(--shadow-card);
            transition: transform 0.3s ease, border-color 0.3s ease, background 0.3s ease;
        }

        .glass-card:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(0, 200, 255, 0.35);
            transform: translateY(-4px);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 44px;
            padding: 0 24px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1;
            border: 1px solid transparent;
            white-space: nowrap;
            transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
        }

        .btn-primary {
            background: linear-gradient(135deg, #00C8FF, #007BFF);
            color: #FFFFFF;
            box-shadow: 0 0 20px rgba(0, 200, 255, 0.35);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 34px rgba(0, 200, 255, 0.55);
            filter: brightness(1.04);
            color: #fff;
        }

        .btn-outline {
            border-color: rgba(0, 200, 255, 0.55);
            color: var(--primary);
            background: transparent;
        }

        .btn-outline:hover {
            background: rgba(0, 200, 255, 0.08);
            border-color: rgba(0, 200, 255, 0.8);
            box-shadow: 0 0 18px rgba(0, 200, 255, 0.22);
            color: var(--primary);
            transform: translateY(-2px);
        }

        .btn:active {
            transform: scale(0.98);
            filter: brightness(0.96);
        }

        .btn:focus-visible,
        a:focus-visible,
        button:focus-visible {
            outline: 3px solid rgba(0, 200, 255, 0.4);
            outline-offset: 3px;
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 80;
            background: rgba(11, 20, 32, 0.92);
            -webkit-backdrop-filter: blur(16px);
            backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(0, 200, 255, 0.18);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
        }

        .header-flex {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            height: 72px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .logo-mark {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(0, 200, 255, 0.08);
            border: 1px solid rgba(0, 200, 255, 0.35);
            border-radius: 50%;
            box-shadow: 0 0 18px rgba(0, 200, 255, 0.18);
        }

        .logo-name {
            font-size: 20px;
            font-weight: 800;
            color: var(--text);
            line-height: 1.1;
            letter-spacing: 0.02em;
        }

        .logo-name small {
            display: block;
            font-size: 11px;
            color: var(--primary);
            font-weight: 600;
            letter-spacing: 0.12em;
            margin-top: 3px;
        }

        .main-nav {
            display: flex;
            gap: 4px;
        }

        .main-nav .nav-link {
            position: relative;
            padding: 12px 16px;
            border-radius: 12px;
            color: var(--muted);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.2;
            transition: color 0.25s ease, background 0.25s ease;
        }

        .main-nav .nav-link:hover {
            color: var(--primary);
            background: rgba(0, 200, 255, 0.06);
        }

        .main-nav .nav-link.active {
            color: var(--text);
            background: rgba(0, 200, 255, 0.08);
        }

        .main-nav .nav-link.active::after {
            content: "";
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 4px;
            height: 2px;
            border-radius: 3px;
            background: var(--primary);
            box-shadow: 0 0 12px rgba(0, 200, 255, 0.6);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .nav-burger {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.14);
            background: rgba(255, 255, 255, 0.03);
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
        }

        .nav-burger span {
            display: block;
            width: 20px;
            height: 2px;
            border-radius: 4px;
            background: var(--text);
            transition: transform 0.3s ease, opacity 0.3s ease;
        }

        .nav-burger.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-burger.active span:nth-child(2) {
            opacity: 0;
        }

        .nav-burger.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* Hero */
        .hero {
            min-height: calc(88vh - 72px);
            display: flex;
            align-items: center;
            padding: 88px 0;
            overflow: hidden;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            z-index: 0;
        }

        .hero-bg::before {
            content: "";
            position: absolute;
            inset: 0;
            background:
                radial-gradient(circle at 78% 30%, rgba(0, 200, 255, 0.16), transparent 380px),
                radial-gradient(circle at 8% 80%, rgba(0, 123, 255, 0.1), transparent 280px);
        }

        .hero-bg::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(103deg, rgba(11, 20, 32, 0.95) 10%, rgba(11, 20, 32, 0.78) 48%, rgba(11, 20, 32, 0.52) 100%);
        }

        .hero-inner {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: minmax(0, 1fr) 340px;
            gap: 48px;
            align-items: center;
            width: 100%;
        }

        .hero-content {
            max-width: 680px;
        }

        .hero-breadcrumb {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: var(--sub);
            border: 1px solid rgba(255, 255, 255, 0.12);
            background: rgba(255, 255, 255, 0.04);
            padding: 8px 14px;
            border-radius: 999px;
            margin-bottom: 22px;
        }

        .hero-breadcrumb a {
            color: var(--muted);
            transition: color 0.2s ease;
        }

        .hero-breadcrumb a:hover {
            color: var(--primary);
        }

        .hero-title {
            font-size: clamp(34px, 5vw, 60px);
            font-weight: 800;
            color: var(--text);
            line-height: 1.2;
            margin: 0 0 20px;
            letter-spacing: -0.02em;
        }

        .hero-title .highlight {
            background: linear-gradient(135deg, #00E5FF, #00C8FF);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-shadow: 0 0 36px rgba(0, 200, 255, 0.4);
        }

        .hero-subtitle {
            font-size: 17px;
            line-height: 1.9;
            color: var(--muted);
            max-width: 560px;
            margin-bottom: 32px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 32px;
        }

        .hero-status-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            -webkit-backdrop-filter: blur(14px);
            backdrop-filter: blur(14px);
            border-radius: 20px;
            padding: 24px;
            box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), 0 24px 56px rgba(0, 0, 0, 0.36);
        }

        .status-row {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text);
            font-weight: 600;
            font-size: 15px;
            margin-bottom: 12px;
        }

        .dot-pulse {
            position: relative;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--success);
            box-shadow: 0 0 0 rgba(44, 229, 166, 0.5);
            animation: pulse-dot 2s infinite;
            flex: 0 0 auto;
        }

        @keyframes pulse-dot {
            0% {
                box-shadow: 0 0 0 0 rgba(44, 229, 166, 0.5);
            }
            70% {
                box-shadow: 0 0 0 10px rgba(44, 229, 166, 0);
            }
            100% {
                box-shadow: 0 0 0 0 rgba(44, 229, 166, 0);
            }
        }

        .status-list {
            margin-top: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 14px;
        }

        .status-list li {
            display: flex;
            justify-content: space-between;
            gap: 14px;
            font-size: 14px;
            color: var(--muted);
            padding: 5px 0;
        }

        .status-list li span:last-child {
            color: var(--text);
            font-weight: 500;
            text-align: right;
        }

        .scroll-hint {
            position: absolute;
            left: 50%;
            bottom: 24px;
            transform: translateX(-50%);
            z-index: 4;
            text-align: center;
            color: var(--sub);
            font-size: 13px;
            letter-spacing: 0.12em;
        }

        .scroll-hint::before {
            content: "";
            display: block;
            width: 1px;
            height: 28px;
            margin: 0 auto 8px;
            background: linear-gradient(180deg, var(--primary), transparent);
        }

        /* Login way cards */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, minmax(0, 1fr));
            gap: 28px;
        }

        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 32px;
        }

        .way-card {
            padding: 30px;
            border-radius: 22px;
        }

        .way-icon {
            width: 52px;
            height: 52px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(0, 200, 255, 0.1);
            border: 1px solid rgba(0, 200, 255, 0.24);
            box-shadow: 0 0 18px rgba(0, 200, 255, 0.12);
            margin-bottom: 20px;
        }

        .way-card h3 {
            color: var(--text);
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .way-card p {
            color: var(--muted);
            font-size: 15px;
            line-height: 1.8;
        }

        .way-card a {
            display: inline-block;
            margin-top: 18px;
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
        }

        .way-card a:hover {
            text-decoration: underline;
        }

        /* Guide flow */
        .guide-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 320px;
            gap: 40px;
            align-items: start;
        }

        .guide-list {
            display: flex;
            flex-direction: column;
        }

        .guide-item {
            display: grid;
            grid-template-columns: 72px 1fr;
            gap: 24px;
            padding: 26px 6px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .guide-item:first-child {
            border-top: 0;
            padding-top: 6px;
        }

        .guide-num {
            width: 58px;
            height: 58px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
            background: linear-gradient(135deg, rgba(0, 200, 255, 0.14), rgba(0, 123, 255, 0.08));
            border: 1px solid rgba(0, 200, 255, 0.3);
            border-radius: 18px;
            box-shadow: 0 0 16px rgba(0, 200, 255, 0.1);
        }

        .guide-content h3 {
            color: var(--text);
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .guide-content p {
            color: var(--muted);
            font-size: 15px;
            line-height: 1.85;
        }

        .guide-tip {
            padding: 28px;
            border-radius: 22px;
            background: linear-gradient(135deg, rgba(255, 138, 0, 0.07), rgba(245, 200, 66, 0.03));
            border: 1px solid rgba(255, 138, 0, 0.2);
            position: sticky;
            top: 100px;
            margin-top: 8px;
        }

        .guide-tip strong {
            color: var(--accent);
            font-size: 16px;
            display: block;
            margin-bottom: 10px;
        }

        .guide-tip p {
            color: var(--muted);
            font-size: 15px;
            line-height: 1.85;
        }

        /* Device scene */
        .device-layout {
            display: grid;
            grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
            gap: 30px;
            align-items: stretch;
        }

        .device-main-card {
            position: relative;
            min-height: 420px;
            border-radius: 24px;
            overflow: hidden;
            border: 1px solid var(--line);
            box-shadow: var(--shadow-card);
            display: flex;
            align-items: flex-end;
        }

        .device-main-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .device-main-card::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 20, 32, 0.16) 0%, rgba(11, 20, 32, 0.75) 100%);
        }

        .device-main-body {
            position: relative;
            z-index: 2;
            padding: 36px;
            color: var(--text);
            max-width: 520px;
        }

        .device-main-body h3 {
            font-size: 26px;
            font-weight: 800;
            margin-bottom: 8px;
        }

        .device-main-body p {
            color: rgba(242, 247, 253, 0.82);
            line-height: 1.85;
            font-size: 15px;
        }

        .device-stack {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }

        .device-small-card {
            display: flex;
            gap: 20px;
            align-items: center;
            padding: 24px;
            border-radius: 22px;
            flex: 1;
        }

        .device-small-card img {
            width: 96px;
            height: 96px;
            border-radius: 18px;
            object-fit: cover;
            flex: 0 0 auto;
            box-shadow: 0 10px 26px rgba(0, 0, 0, 0.3);
        }

        .device-small-card h3 {
            color: var(--text);
            font-weight: 700;
            font-size: 18px;
            margin-bottom: 6px;
        }

        .device-small-card p {
            color: var(--muted);
            font-size: 14px;
            line-height: 1.75;
        }

        /* Security */
        .security-grid {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 360px;
            gap: 48px;
            align-items: center;
        }

        .security-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0 28px;
        }

        .security-list li {
            padding: 22px 0 22px 30px;
            position: relative;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .security-list li:nth-child(1),
        .security-list li:nth-child(2) {
            border-top: 0;
            padding-top: 4px;
        }

        .security-list li::before {
            content: "";
            position: absolute;
            left: 0;
            top: 30px;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--success);
            box-shadow: 0 0 12px rgba(44, 229, 166, 0.6);
        }

        .security-list h3 {
            color: var(--text);
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .security-list p {
            color: var(--muted);
            font-size: 14px;
            line-height: 1.8;
        }

        .security-panel {
            padding: 30px;
            border-radius: 24px;
            background: rgba(0, 200, 255, 0.05);
            border: 1px solid rgba(0, 200, 255, 0.18);
        }

        .security-panel strong {
            display: block;
            color: var(--text);
            font-size: 18px;
            margin-bottom: 14px;
        }

        .security-panel li {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.07);
            color: var(--muted);
            font-size: 15px;
        }

        .security-panel li:first-child {
            border-top: 0;
        }

        .security-panel .num {
            color: var(--primary);
            font-size: 18px;
            font-weight: 800;
            min-width: 52px;
            font-variant-numeric: tabular-nums;
        }

        /* FAQ */
        .faq-wrap {
            max-width: 780px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            padding: 12px 0;
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            width: 100%;
            text-align: left;
            padding: 14px 0;
            color: var(--text);
            font-size: 16px;
            font-weight: 700;
            line-height: 1.6;
            transition: color 0.2s ease;
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-icon {
            width: 32px;
            height: 32px;
            min-width: 32px;
            border-radius: 50%;
            background: rgba(0, 200, 255, 0.08);
            border: 1px solid rgba(0, 200, 255, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--primary);
            line-height: 1;
            transition: transform 0.3s ease, background 0.3s ease;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: rgba(0, 200, 255, 0.18);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.32s ease;
        }

        .faq-answer-inner {
            padding: 0 0 18px;
            color: var(--muted);
            font-size: 15px;
            line-height: 1.85;
            max-width: 700px;
        }

        .faq-item.open .faq-answer {
            max-height: 340px;
        }

        /* CTA */
        .cta-section {
            padding: 0 0 92px;
        }

        .cta-panel {
            position: relative;
            overflow: hidden;
            border-radius: 28px;
            text-align: center;
            padding: 78px 40px;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .cta-panel::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(11, 20, 32, 0.92), rgba(11, 32, 54, 0.82));
        }

        .cta-panel .cta-body {
            position: relative;
            z-index: 2;
            max-width: 680px;
            margin: 0 auto;
        }

        .cta-panel h2 {
            color: var(--text);
            font-size: clamp(28px, 4vw, 42px);
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
        }

        .cta-panel p {
            color: var(--muted);
            font-size: 16px;
            margin-bottom: 30px;
        }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }

        /* Footer */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 64px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.7fr 1fr 1fr 1fr;
            gap: 44px;
            padding-bottom: 48px;
        }

        .footer-logo-card .logo {
            margin-bottom: 16px;
        }

        .footer-intro {
            color: var(--sub);
            font-size: 14px;
            line-height: 1.85;
            max-width: 340px;
            margin: 10px 0 14px;
        }

        .footer-domain {
            display: inline-block;
            font-size: 13px;
            color: var(--primary);
            border: 1px solid rgba(0, 200, 255, 0.22);
            background: rgba(0, 200, 255, 0.05);
            padding: 4px 12px;
            border-radius: 999px;
        }

        .footer-links-title {
            color: var(--text);
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .footer-col li {
            margin-bottom: 10px;
        }

        .footer-col a {
            color: var(--sub);
            font-size: 14px;
            transition: color 0.2s ease;
        }

        .footer-col a:hover {
            color: var(--primary);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 24px 0;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 10px;
            color: var(--faint);
            font-size: 14px;
        }

        .footer-bottom p {
            margin: 0;
        }

        .footer-bottom-code {
            color: var(--sub);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .grid-3 {
                grid-template-columns: repeat(2, minmax(0, 1fr));
            }
            .grid-2 {
                grid-template-columns: 1fr 1fr;
            }
            .hero-inner {
                grid-template-columns: 1fr 300px;
                gap: 28px;
            }
            .guide-layout {
                grid-template-columns: 1fr;
            }
            .guide-tip {
                position: static;
            }
            .device-layout {
                grid-template-columns: 1fr;
            }
            .security-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 900px) {
            .main-nav {
                position: fixed;
                top: 72px;
                left: 16px;
                right: 16px;
                z-index: 90;
                display: flex;
                flex-direction: column;
                gap: 6px;
                padding: 16px;
                background: rgba(11, 20, 32, 0.98);
                border: 1px solid rgba(255, 255, 255, 0.1);
                border-radius: 22px;
                box-shadow: 0 28px 60px rgba(0, 0, 0, 0.5);
                opacity: 0;
                visibility: hidden;
                transform: translateY(-12px);
                pointer-events: none;
                transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
            }
            .main-nav.open {
                opacity: 1;
                visibility: visible;
                transform: translateY(0);
                pointer-events: auto;
            }
            .main-nav .nav-link.active::after {
                display: none;
            }
            .main-nav .nav-link {
                padding: 14px 18px;
                border-radius: 14px;
            }
            .nav-burger {
                display: flex;
            }
            .nav-actions .btn-outline {
                display: none;
            }
            .nav-actions .btn-primary {
                font-size: 0;
                padding: 0 18px;
            }
            .nav-actions .btn-primary::before {
                content: "登录";
                font-size: 14px;
            }
        }

        @media (max-width: 768px) {
            section {
                padding: 72px 0;
            }
            .hero {
                min-height: auto;
                padding: 56px 0 72px;
            }
            .hero-inner {
                grid-template-columns: 1fr;
            }
            .hero-status-card {
                max-width: 420px;
            }
            .grid-3,
            .grid-2 {
                grid-template-columns: 1fr;
            }
            .device-main-card {
                min-height: 320px;
            }
            .device-main-body {
                padding: 26px;
            }
            .device-small-card img {
                width: 74px;
                height: 74px;
            }
            .security-list {
                grid-template-columns: 1fr;
            }
            .security-list li:nth-child(2) {
                border-top: 0;
                padding-top: 4px;
            }
            .cta-panel {
                padding: 60px 24px;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
            }
        }

        @media (max-width: 480px) {
            .container {
                padding-left: 18px;
                padding-right: 18px;
            }
            .logo-name {
                font-size: 17px;
            }
            .header-flex {
                height: 64px;
            }
            .btn {
                height: 40px;
                padding: 0 16px;
            }
            .main-nav {
                top: 64px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: flex-start;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .device-small-card {
                flex-direction: column;
                align-items: flex-start;
            }
            .device-small-card img {
                width: 100%;
                height: 160px;
            }
            .guide-item {
                grid-template-columns: 56px 1fr;
                gap: 16px;
                padding-left: 0;
            }
            .guide-num {
                width: 48px;
                height: 48px;
                font-size: 17px;
            }
        }