/* roulang page: index */
:root{
  --bg:#070c18;
  --bg-2:#0a1022;
  --bg-3:#0d152b;
  --panel:rgba(255,255,255,.045);
  --panel-2:rgba(255,255,255,.075);
  --stroke:rgba(120,170,255,.16);
  --stroke-strong:rgba(120,170,255,.36);
  --text:#e9effb;
  --muted:#93a3c4;
  --brand:#4f8cff;
  --brand-2:#22d3ee;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 14px 34px rgba(3,8,20,.55);
  --shadow-hover:0 22px 50px rgba(3,8,20,.72);
  --container:1180px;
  --glow:0 0 22px rgba(79,140,255,.42);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:86px}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  font-size:15.5px;
  line-height:1.78;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(760px 420px at 12% -6%, rgba(79,140,255,.20), transparent 62%),
    radial-gradient(620px 380px at 92% 4%, rgba(34,211,238,.13), transparent 66%),
    radial-gradient(900px 520px at 50% 108%, rgba(79,140,255,.10), transparent 70%);
  pointer-events:none;
  z-index:0;
}
a{color:inherit;text-decoration:none;transition:color .2s ease,background .2s ease,border-color .2s ease}
a:hover{color:#fff}
img{max-width:100%;display:block}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.34;letter-spacing:.2px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:3px;border-radius:6px}
.container-x{width:100%;max-width:var(--container);margin:0 auto;padding:0 22px;position:relative;z-index:1}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(7,12,24,.76);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(120,170,255,.12);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-stuck{box-shadow:0 12px 30px rgba(2,6,16,.6);background:rgba(7,12,24,.94)}
.nav-inner{
  min-height:66px;
  display:flex;align-items:center;gap:18px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,#4f8cff,#22d3ee);
  box-shadow:var(--glow);
  color:#05101f;
}
.brand-name{font-size:18px;font-weight:800;letter-spacing:.6px;color:#fff}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  padding:9px 15px;border-radius:999px;
  font-size:14.5px;color:var(--muted);white-space:nowrap;
  border:1px solid transparent;
}
.nav-link:hover{color:#fff;background:var(--panel)}
.nav-link.active{
  color:#fff;
  background:linear-gradient(140deg,rgba(79,140,255,.24),rgba(34,211,238,.14));
  border-color:rgba(120,170,255,.34);
  box-shadow:inset 0 0 18px rgba(79,140,255,.16);
}
.nav-cta{margin-left:10px}
.nav-toggle{
  display:none;margin-left:auto;
  width:44px;height:44px;border-radius:11px;
  background:var(--panel);border:1px solid var(--stroke);
  cursor:pointer;padding:0;
}
.nav-toggle span{
  display:block;width:18px;height:2px;margin:3px auto;border-radius:2px;
  background:#dbe6ff;transition:transform .22s ease,opacity .22s ease;
}
.nav-open .nav-toggle span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-open .nav-toggle span:nth-child(2){opacity:0}
.nav-open .nav-toggle span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

/* ---------- buttons & tags ---------- */
.btn-glow,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:10px;
  font-size:14.5px;font-weight:700;line-height:1;
  cursor:pointer;border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-glow{
  background:linear-gradient(135deg,#5b95ff,#22d3ee);
  color:#04101f;
  box-shadow:0 0 18px rgba(79,140,255,.45);
}
.btn-glow:hover{color:#04101f;transform:translateY(-2px);box-shadow:0 0 26px rgba(79,140,255,.7)}
.btn-glow:active{transform:translateY(0)}
.btn-ghost{
  background:rgba(255,255,255,.03);
  border-color:var(--stroke-strong);
  color:#dce7ff;
}
.btn-ghost:hover{background:var(--panel-2);color:#fff;transform:translateY(-2px);border-color:rgba(120,170,255,.6)}
.tag{
  display:inline-block;font-size:12px;line-height:1;
  padding:6px 11px;border-radius:999px;
  color:#a9c6ff;background:rgba(79,140,255,.12);
  border:1px solid rgba(120,170,255,.26);
  white-space:nowrap;
}
.tag-soft{color:#8fe6f5;background:rgba(34,211,238,.10);border-color:rgba(34,211,238,.26)}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:86px 0 68px;border-bottom:1px solid rgba(120,170,255,.1)}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{
  width:100%;height:100%;object-fit:cover;
  opacity:.30;
  filter:saturate(.75) contrast(1.05);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.95) 0%,rgba(0,0,0,.55) 62%,rgba(0,0,0,0) 100%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.95) 0%,rgba(0,0,0,.55) 62%,rgba(0,0,0,0) 100%);
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:0;
  background:linear-gradient(105deg,rgba(7,12,24,.96) 8%,rgba(7,12,24,.78) 48%,rgba(7,12,24,.42) 100%);
}
.hero-inner{max-width:820px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:1.4px;
  color:#8fe6f5;padding:7px 14px;border-radius:999px;
  background:rgba(34,211,238,.08);
  border:1px solid rgba(34,211,238,.28);
  margin-bottom:22px;
}
.hero-title{
  font-size:44px;line-height:1.26;font-weight:800;letter-spacing:1px;
  background:linear-gradient(120deg,#ffffff 12%,#b9d2ff 62%,#7fe6f6 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:16px;
}
.hero-sub{font-size:17px;color:#b9c9e8;margin-bottom:16px}
.hero-lead{
  font-size:15.5px;color:var(--muted);max-width:700px;margin-bottom:28px;
}
.hero-lead strong{color:#dbe7ff;font-weight:700}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:40px}
.metric-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:14px;
}
.metric{
  padding:16px 18px;border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(255,255,255,.09),rgba(255,255,255,.025));
  border:1px solid var(--stroke);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  box-shadow:var(--shadow);
  transition:transform .2s ease,border-color .2s ease;
}
.metric:hover{transform:translateY(-3px);border-color:var(--stroke-strong)}
.metric strong{display:block;font-size:24px;font-weight:800;color:#fff;letter-spacing:.5px}
.metric span{display:block;font-size:12.5px;color:var(--muted);margin-top:2px}

/* ---------- sections ---------- */
.section{padding:74px 0;position:relative}
.section--alt{
  background:rgba(255,255,255,.018);
  border-top:1px solid rgba(120,170,255,.09);
  border-bottom:1px solid rgba(120,170,255,.09);
}
.section-head{max-width:720px;margin-bottom:36px}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:12.5px;letter-spacing:2px;color:#7fd8ec;margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,#4f8cff,#22d3ee)}
.sec-title{font-size:29px;letter-spacing:.6px;color:#fff}
.sec-desc{color:var(--muted);font-size:15px;margin-top:12px}

/* ---------- search ---------- */
.search-wrap{
  display:grid;grid-template-columns:1.05fr .95fr;gap:26px;align-items:center;
  padding:30px;border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(255,255,255,.075),rgba(255,255,255,.02));
  border:1px solid var(--stroke);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  box-shadow:var(--shadow);
}
.search-form{display:flex;gap:10px;flex-wrap:wrap}
.search-form input{
  flex:1 1 210px;min-height:46px;
  padding:0 16px;border-radius:10px;
  background:rgba(6,11,24,.72);
  border:1px solid var(--stroke);
  color:var(--text);font-size:14.5px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-form input::placeholder{color:#6c7c9c}
.search-form input:focus{outline:none;border-color:rgba(79,140,255,.66);box-shadow:0 0 0 3px rgba(79,140,255,.16)}
.chips{display:flex;flex-wrap:wrap;gap:9px;margin-top:14px}
.chip{
  font-size:13px;padding:7px 13px;border-radius:999px;
  color:#b9c9e8;background:rgba(255,255,255,.04);
  border:1px solid var(--stroke);
  transition:all .2s ease;
}
.chip:hover{color:#fff;background:rgba(79,140,255,.16);border-color:rgba(120,170,255,.5);transform:translateY(-2px)}

/* ---------- grids ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}

/* ---------- cards ---------- */
.card-glass{
  padding:24px;border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(255,255,255,.062),rgba(255,255,255,.018));
  border:1px solid var(--stroke);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  display:flex;flex-direction:column;gap:12px;
}
.card-glass:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--stroke-strong)}
.card-title{font-size:18px;color:#fff;letter-spacing:.3px}
.card-text{font-size:14.5px;color:var(--muted)}
.card-icon{
  width:42px;height:42px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(79,140,255,.26),rgba(34,211,238,.14));
  border:1px solid rgba(120,170,255,.28);
  color:#a9d7ff;
}
.card-icon svg{width:21px;height:21px}
.card-foot{margin-top:auto;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.card-link{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13.5px;font-weight:700;color:#8fc0ff;
}
.card-link:hover{color:#bfe0ff}
.card-link svg{width:14px;height:14px}

/* ---------- cms cards ---------- */
.cms-card .cms-card-link{display:block}
.cms-meta{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  margin-top:auto;padding-top:6px;font-size:12.5px;color:#7d8dab;
}
.empty-note{
  padding:22px;border-radius:var(--radius-sm);
  border:1px dashed rgba(120,170,255,.28);
  color:#8a9abb;font-size:14px;
}

/* ---------- category matrix ---------- */
.matrix-card{
  position:relative;overflow:hidden;
  padding:26px;border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(79,140,255,.14),rgba(34,211,238,.05));
  border:1px solid rgba(120,170,255,.22);
  box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  display:flex;flex-direction:column;gap:12px;min-height:100%;
}
.matrix-card:hover{transform:translateY(-4px);border-color:rgba(120,170,255,.5);box-shadow:var(--shadow-hover)}
.matrix-card .idx{
  font-size:12px;letter-spacing:2px;color:#7fd8ec;font-weight:700;
}
.matrix-card h3{font-size:19px;color:#fff}
.matrix-card p{font-size:14.3px;color:#a8b8d8}
.matrix-card .go{margin-top:auto;font-size:13.5px;font-weight:700;color:#9ecbff;display:inline-flex;gap:7px;align-items:center}

/* ---------- ranking list ---------- */
.rank-list{display:flex;flex-direction:column;gap:12px}
.rank-item{
  display:flex;align-items:center;gap:16px;
  padding:15px 18px;border-radius:12px;
  background:rgba(255,255,255,.035);
  border:1px solid rgba(120,170,255,.12);
  transition:all .2s ease;
}
.rank-item:hover{background:rgba(79,140,255,.12);border-color:rgba(120,170,255,.4);transform:translateX(4px)}
.rank-no{
  flex:0 0 34px;height:34px;border-radius:10px;
  display:grid;place-items:center;
  font-weight:800;font-size:14px;color:#04101f;
  background:linear-gradient(140deg,#5b95ff,#22d3ee);
  box-shadow:0 0 14px rgba(79,140,255,.4);
}
.rank-body{min-width:0;flex:1}
.rank-body h3{
  font-size:15.5px;color:#e6eeff;font-weight:600;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.rank-body span{font-size:12.5px;color:#7d8dab}
.rank-go{font-size:13px;color:#7fb6ff;font-weight:700;flex:0 0 auto}

/* ---------- steps ---------- */
.step{
  position:relative;padding:26px;border-radius:var(--radius);
  background:rgba(255,255,255,.04);
  border:1px solid var(--stroke);
  transition:all .2s ease;
}
.step:hover{transform:translateY(-4px);border-color:var(--stroke-strong);box-shadow:var(--shadow-hover)}
.step-num{
  width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;font-weight:800;
  color:#04101f;background:linear-gradient(140deg,#5b95ff,#22d3ee);
  box-shadow:var(--glow);margin-bottom:14px;
}
.step h3{font-size:17px;color:#fff;margin-bottom:8px}
.step p{font-size:14.2px;color:var(--muted)}

/* ---------- showcase ---------- */
.showcase{
  display:grid;grid-template-columns:1.08fr .92fr;gap:28px;align-items:center;
}
.showcase-img{
  border-radius:var(--radius);overflow:hidden;
  border:1px solid rgba(120,170,255,.24);
  box-shadow:var(--shadow);
  position:relative;
}
.showcase-img img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease}
.showcase-img:hover img{transform:scale(1.04)}
.showcase-img::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,12,24,0) 42%,rgba(7,12,24,.72) 100%);
}
.check-list{display:flex;flex-direction:column;gap:12px;margin-top:18px}
.check-list li{
  display:flex;gap:11px;align-items:flex-start;
  font-size:14.5px;color:#b9c9e8;
}
.check-list svg{flex:0 0 18px;width:18px;height:18px;margin-top:4px;color:#4fd1e8}

/* ---------- compare ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.compare-col{
  padding:26px;border-radius:var(--radius);
  border:1px solid var(--stroke);
  background:rgba(255,255,255,.03);
}
.compare-col.after{
  border-color:rgba(34,211,238,.34);
  background:linear-gradient(160deg,rgba(34,211,238,.10),rgba(79,140,255,.06));
  box-shadow:0 0 30px rgba(34,211,238,.12);
}
.compare-col h3{font-size:17.5px;margin-bottom:14px;display:flex;align-items:center;gap:9px}
.compare-col h3 span.dot{width:9px;height:9px;border-radius:50%;background:#6b7a99}
.compare-col.after h3 span.dot{background:#22d3ee;box-shadow:0 0 10px rgba(34,211,238,.8)}
.compare-col li{
  font-size:14.3px;color:var(--muted);padding:9px 0;
  border-bottom:1px dashed rgba(120,170,255,.12);
}
.compare-col li:last-child{border-bottom:none}

/* ---------- quotes ---------- */
.quote{
  padding:24px;border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid var(--stroke);
  transition:all .2s ease;
}
.quote:hover{transform:translateY(-3px);border-color:var(--stroke-strong);box-shadow:var(--shadow-hover)}
.quote p{font-size:14.6px;color:#c3d1ea;line-height:1.82}
.quote-by{display:flex;align-items:center;gap:11px;margin-top:18px}
.avatar{
  width:36px;height:36px;border-radius:50%;
  display:grid;place-items:center;font-size:13px;font-weight:800;color:#04101f;
  background:linear-gradient(140deg,#5b95ff,#22d3ee);
}
.quote-by strong{display:block;font-size:13.8px;color:#e6eeff}
.quote-by span{display:block;font-size:12.3px;color:#7d8dab}

/* ---------- badges ---------- */
.badge-wall{display:flex;flex-wrap:wrap;gap:12px}
.badge-pill{
  display:inline-flex;align-items:center;gap:9px;
  padding:12px 18px;border-radius:999px;
  font-size:13.6px;color:#c3d1ea;
  background:rgba(255,255,255,.04);
  border:1px solid var(--stroke);
  transition:all .2s ease;
}
.badge-pill:hover{border-color:var(--stroke-strong);color:#fff;background:rgba(79,140,255,.12)}
.badge-pill svg{width:16px;height:16px;color:#5fd4ea}

/* ---------- changelog ---------- */
.log{position:relative;padding-left:26px}
.log::before{content:"";position:absolute;left:6px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,rgba(79,140,255,.6),rgba(34,211,238,.05))}
.log-item{position:relative;padding:0 0 24px 6px}
.log-item:last-child{padding-bottom:0}
.log-item::before{
  content:"";position:absolute;left:-26px;top:8px;width:12px;height:12px;border-radius:50%;
  background:#0a1022;border:2px solid #4f8cff;box-shadow:0 0 10px rgba(79,140,255,.7);
}
.log-item h3{font-size:16px;color:#e9effb;margin-bottom:6px}
.log-item p{font-size:14.2px;color:var(--muted)}
.log-item .ver{font-size:12px;color:#7fd8ec;letter-spacing:1.4px;margin-bottom:4px;display:block}

/* ---------- cta ---------- */
.cta-panel{
  position:relative;overflow:hidden;
  padding:52px 40px;border-radius:18px;text-align:center;
  background:linear-gradient(135deg,rgba(79,140,255,.20),rgba(34,211,238,.10));
  border:1px solid rgba(120,170,255,.32);
  box-shadow:0 0 44px rgba(34,90,200,.28);
}
.cta-panel::before{
  content:"";position:absolute;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(34,211,238,.28),transparent 68%);
  top:-140px;right:-90px;
}
.cta-panel h2{font-size:28px;color:#fff;margin-bottom:12px}
.cta-panel p{color:#c3d1ea;font-size:15px;max-width:640px;margin:0 auto 24px}
.cta-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;position:relative;z-index:1}

/* ---------- footer ---------- */
.site-footer{
  border-top:1px solid rgba(120,170,255,.14);
  background:rgba(4,8,17,.92);
  padding:56px 0 26px;
  position:relative;z-index:1;
}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:34px}
.footer-title{font-size:14px;font-weight:800;color:#fff;letter-spacing:1px;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--muted)}
.footer-links a:hover{color:#fff}
.footer-about{font-size:14px;color:var(--muted);max-width:360px;margin-top:14px}
.footer-bottom{
  margin-top:38px;padding-top:20px;
  border-top:1px solid rgba(120,170,255,.12);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:#71819f;
}
.footer-brand{display:flex;align-items:center;gap:10px}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .hero-title{font-size:38px}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .metric-bar{grid-template-columns:repeat(2,1fr)}
  .search-wrap{grid-template-columns:1fr}
  .showcase{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .nav-link{padding:8px 11px;font-size:13.8px}
}
@media (max-width:880px){
  .nav-toggle{display:block}
  .nav-cta{display:none}
  .nav-links{
    display:none;
    position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:6px;
    padding:16px 22px 22px;
    background:rgba(8,13,26,.98);
    border-bottom:1px solid rgba(120,170,255,.18);
    box-shadow:0 22px 40px rgba(2,6,16,.7);
  }
  .nav-open .nav-links{display:flex}
  .nav-link{padding:12px 14px;font-size:15px;border-radius:10px}
  .nav-inner{position:relative}
  .hero{padding:64px 0 52px}
  .section{padding:56px 0}
}
@media (max-width:768px){
  .grid-2,.grid-3,.grid-4,.compare{grid-template-columns:1fr}
  .hero-title{font-size:31px}
  .hero-sub{font-size:15.5px}
  .sec-title{font-size:24px}
  .metric-bar{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr}
  .cta-panel{padding:38px 22px}
  .cta-panel h2{font-size:23px}
  .search-wrap{padding:22px}
}
@media (max-width:520px){
  .container-x{padding:0 16px}
  .hero-title{font-size:27px}
  .metric-bar{grid-template-columns:1fr}
  .hero-actions .btn-glow,.hero-actions .btn-ghost{width:100%}
  .rank-item{padding:13px 14px;gap:12px}
  .rank-body h3{font-size:14.5px}
  .card-glass{padding:20px}
  .brand-name{font-size:16.5px}
}

/* roulang page: article */
:root{
 --bg:#070c18;
 --bg-2:#0a1022;
 --bg-3:#0d152b;
 --panel:rgba(255,255,255,.045);
 --panel-2:rgba(255,255,255,.075);
 --stroke:rgba(120,170,255,.16);
 --stroke-strong:rgba(120,170,255,.36);
 --text:#e9effb;
 --muted:#93a3c4;
 --brand:#4f8cff;
 --brand-2:#22d3ee;
 --radius:14px;
 --radius-sm:10px;
 --shadow:0 14px 34px rgba(3,8,20,.55);
 --shadow-hover:0 22px 50px rgba(3,8,20,.72);
 --container:1180px;
 --glow:0 0 22px rgba(79,140,255,.42);
}
html{scroll-behavior:smooth;scroll-padding-top:86px}
body{
 margin:0;
 background:var(--bg);
 color:var(--text);
 font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
 font-size:15.5px;
 line-height:1.78;
 -webkit-font-smoothing:antialiased;
 overflow-x:hidden;
}
body::before{
 content:"";
 position:fixed;
 inset:0;
 background:
 radial-gradient(760px 420px at 12% -6%, rgba(79,140,255,.20), transparent 62%),
 radial-gradient(620px 380px at 92% 4%, rgba(34,211,238,.13), transparent 66%),
 radial-gradient(900px 520px at 50% 108%, rgba(79,140,255,.10), transparent 70%);
 pointer-events:none;
 z-index:0;
}
a{color:inherit;text-decoration:none;transition:color .2s ease,background .2s ease,border-color .2s ease}
a:hover{color:#fff}
img{max-width:100%;display:block}
button{font-family:inherit}
h1,h2,h3,h4,p{margin:0}
.container-x{width:100%;max-width:var(--container);margin:0 auto;padding:0 22px;position:relative;z-index:1}
/* ---------- header ---------- */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(7,12,24,.76);
 backdrop-filter:blur(16px);
 -webkit-backdrop-filter:blur(16px);
 border-bottom:1px solid rgba(120,170,255,.12);
 transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-stuck{box-shadow:0 12px 30px rgba(2,6,16,.6);background:rgba(7,12,24,.94)}
.nav-inner{
 min-height:66px;
 display:flex;align-items:center;gap:18px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
 width:36px;height:36px;border-radius:11px;
 display:grid;place-items:center;
 background:linear-gradient(140deg,#4f8cff,#22d3ee);
 box-shadow:var(--glow);
 color:#05101f;
}
.brand-name{font-size:18px;font-weight:800;letter-spacing:.6px;color:#fff}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
 padding:9px 15px;border-radius:999px;
 font-size:14.5px;color:var(--muted);white-space:nowrap;
 border:1px solid transparent;
}
.nav-link:hover{color:#fff;background:var(--panel)}
.nav-link.active{
 color:#fff;
 background:linear-gradient(140deg,rgba(79,140,255,.24),rgba(34,211,238,.14));
 border-color:rgba(120,170,255,.34);
 box-shadow:inset 0 0 18px rgba(79,140,255,.16);
}
.nav-cta{margin-left:10px}
.nav-toggle{
 display:none;margin-left:auto;
 width:44px;height:44px;border-radius:11px;
 background:var(--panel);border:1px solid var(--stroke);
 cursor:pointer;padding:0;
}
.nav-toggle span{
 display:block;width:18px;height:2px;margin:3px auto;border-radius:2px;
 background:#dbe6ff;transition:transform .22s ease,opacity .22s ease;
}
.nav-open .nav-toggle span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-open .nav-toggle span:nth-child(2){opacity:0}
.nav-open .nav-toggle span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}
/* ---------- buttons & tags ---------- */
.btn-glow,.btn-ghost{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:11px 22px;border-radius:10px;
 font-size:14.5px;font-weight:700;line-height:1;
 cursor:pointer;border:1px solid transparent;
 transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-glow{
 background:linear-gradient(135deg,#5b95ff,#22d3ee);
 color:#04101f;
 box-shadow:0 0 18px rgba(79,140,255,.45);
}
.btn-glow:hover{color:#04101f;transform:translateY(-2px);box-shadow:0 0 26px rgba(79,140,255,.7)}
.btn-glow:active{transform:translateY(0)}
.btn-ghost{
 background:rgba(255,255,255,.03);
 border-color:var(--stroke-strong);
 color:#dce7ff;
}
.btn-ghost:hover{background:var(--panel-2);color:#fff;transform:translateY(-2px);border-color:rgba(120,170,255,.6)}
.btn-glow:focus-visible,.btn-ghost:focus-visible,.nav-toggle:focus-visible,.nav-link:focus-visible{
 outline:2px solid #7fe6f6;outline-offset:3px;
}
.tag{
 display:inline-block;font-size:12px;line-height:1;
 padding:6px 11px;border-radius:999px;
 color:#a9c6ff;background:rgba(79,140,255,.12);
 border:1px solid rgba(120,170,255,.26);
 white-space:nowrap;
}
.tag-soft{color:#8fe6f5;background:rgba(34,211,238,.10);border-color:rgba(34,211,238,.26)}
/* ---------- sections ---------- */
.section{padding:74px 0;position:relative}
.section--alt{
 background:rgba(255,255,255,.018);
 border-top:1px solid rgba(120,170,255,.09);
 border-bottom:1px solid rgba(120,170,255,.09);
}
.section-head{max-width:760px;margin-bottom:36px}
.eyebrow{
 display:inline-flex;align-items:center;gap:9px;
 font-size:12.5px;letter-spacing:2px;color:#7fd8ec;margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,#4f8cff,#22d3ee)}
.sec-title{
 font-size:29px;line-height:1.35;font-weight:800;letter-spacing:.5px;color:#fff;margin-bottom:12px;
}
.sec-desc{font-size:15px;color:var(--muted);max-width:700px}
.sec-desc strong{color:#dbe7ff}
/* ---------- article hero ---------- */
.article-hero{
 position:relative;overflow:hidden;
 padding:64px 0 52px;
 border-bottom:1px solid rgba(120,170,255,.1);
}
.article-hero-bg{position:absolute;inset:0;z-index:0}
.article-hero-bg img{
 width:100%;height:100%;object-fit:cover;opacity:.26;
 filter:saturate(.75) contrast(1.05);
 -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.95) 0%,rgba(0,0,0,.5) 66%,rgba(0,0,0,0) 100%);
 mask-image:linear-gradient(180deg,rgba(0,0,0,.95) 0%,rgba(0,0,0,.5) 66%,rgba(0,0,0,0) 100%);
}
.article-hero::after{
 content:"";position:absolute;inset:0;z-index:0;
 background:linear-gradient(105deg,rgba(7,12,24,.96) 10%,rgba(7,12,24,.82) 52%,rgba(7,12,24,.5) 100%);
}
.article-hero .container-x{position:relative;z-index:1}
.breadcrumb-line{
 display:flex;flex-wrap:wrap;align-items:center;gap:9px;
 font-size:13px;color:var(--muted);margin-bottom:20px;
}
.breadcrumb-line a:hover{color:#8fe6f5}
.breadcrumb-line .sep{color:rgba(147,163,196,.5)}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:18px}
.article-title{
 font-size:38px;line-height:1.32;font-weight:800;letter-spacing:.6px;
 background:linear-gradient(120deg,#ffffff 14%,#bdd5ff 64%,#7fe6f6 100%);
 -webkit-background-clip:text;background-clip:text;color:transparent;
 max-width:900px;margin-bottom:16px;
}
.article-lead{font-size:16px;color:#b9c9e8;max-width:760px;margin-bottom:26px}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px}
/* ---------- article body ---------- */
.article-wrap{
 display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:34px;align-items:start;
}
.article-body{
 background:linear-gradient(160deg,rgba(255,255,255,.055),rgba(255,255,255,.022));
 border:1px solid var(--stroke);
 border-radius:var(--radius);
 box-shadow:var(--shadow);
 padding:34px 34px 30px;
 font-size:16px;line-height:1.85;color:#d6e1f5;
}
.article-body h2{
 font-size:23px;line-height:1.4;font-weight:800;color:#fff;
 margin:34px 0 14px;padding-left:13px;border-left:3px solid var(--brand);
}
.article-body h3{
 font-size:18px;line-height:1.5;font-weight:700;color:#e8f1ff;
 margin:26px 0 10px;
}
.article-body h2:first-child,.article-body h3:first-child{margin-top:0}
.article-body p{margin:0 0 15px}
.article-body ul,.article-body ol{margin:0 0 16px;padding-left:22px}
.article-body li{margin-bottom:8px}
.article-body strong{color:#9fd0ff;font-weight:700}
.article-body blockquote{
 margin:22px 0;padding:18px 22px;
 border-left:3px solid var(--brand-2);
 border-radius:0 var(--radius-sm) var(--radius-sm) 0;
 background:rgba(34,211,238,.07);
 color:#c9e6f7;font-size:15.5px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{
 width:100%;border-collapse:collapse;margin:18px 0 22px;font-size:14.5px;
 border:1px solid var(--stroke);border-radius:var(--radius-sm);overflow:hidden;
}
.article-body th,.article-body td{
 padding:11px 14px;text-align:left;
 border-bottom:1px solid rgba(120,170,255,.12);
}
.article-body th{background:rgba(79,140,255,.14);color:#dceaff;font-weight:700}
.article-body tr:last-child td{border-bottom:0}
.article-body img{border-radius:var(--radius-sm);margin:18px 0;box-shadow:var(--shadow)}
.article-body a{color:#7fd8ec;border-bottom:1px dashed rgba(127,216,236,.5)}
.article-body a:hover{color:#fff;border-bottom-color:#fff}
.article-empty{
 padding:36px 6px;text-align:center;color:var(--muted);
}
.article-empty strong{display:block;font-size:19px;color:#e6eeff;margin-bottom:8px}
.article-empty .btn-ghost{margin-top:18px}
/* ---------- aside ---------- */
.side-card{
 background:linear-gradient(160deg,rgba(255,255,255,.05),rgba(255,255,255,.018));
 border:1px solid var(--stroke);
 border-radius:var(--radius);
 box-shadow:var(--shadow);
 padding:22px 22px 18px;
 margin-bottom:20px;
}
.side-title{
 font-size:15px;font-weight:800;color:#fff;letter-spacing:.4px;
 margin-bottom:14px;padding-bottom:11px;
 border-bottom:1px solid rgba(120,170,255,.14);
 display:flex;align-items:center;gap:8px;
}
.side-title::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-2);box-shadow:0 0 8px var(--brand-2)}
.side-list{list-style:none;margin:0;padding:0}
.side-list li{
 font-size:14px;color:#c3d2ec;padding:9px 0;
 border-bottom:1px dashed rgba(120,170,255,.12);
 display:flex;gap:9px;align-items:flex-start;
}
.side-list li:last-child{border-bottom:0;padding-bottom:0}
.side-list .num{
 flex:0 0 auto;width:20px;height:20px;border-radius:6px;
 display:grid;place-items:center;font-size:11.5px;font-weight:700;
 color:#04101f;background:linear-gradient(135deg,#5b95ff,#22d3ee);margin-top:3px;
}
.side-note{font-size:13.5px;color:var(--muted);line-height:1.75}
/* ---------- fact cards ---------- */
.fact-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.fact-card{
 background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
 border:1px solid var(--stroke);border-radius:var(--radius);
 padding:24px 22px;box-shadow:var(--shadow);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
 height:100%;
}
.fact-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--stroke-strong)}
.fact-icon{
 width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
 background:rgba(79,140,255,.14);border:1px solid rgba(120,170,255,.28);
 color:#8fc0ff;margin-bottom:15px;
}
.fact-card h3{font-size:17px;font-weight:800;color:#fff;margin-bottom:9px}
.fact-card p{font-size:14.5px;color:var(--muted);line-height:1.75;margin-bottom:12px}
.fact-card .tag{margin-top:auto}
.fact-value{font-size:26px;font-weight:800;color:#7fe6f6;letter-spacing:.5px;margin-bottom:6px}
/* ---------- compare table ---------- */
.table-wrap{
 background:rgba(255,255,255,.03);border:1px solid var(--stroke);
 border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;
}
.data-table{width:100%;border-collapse:collapse;font-size:14.5px}
.data-table th,.data-table td{padding:14px 18px;text-align:left;border-bottom:1px solid rgba(120,170,255,.1)}
.data-table thead th{
 background:rgba(79,140,255,.14);color:#dceaff;font-weight:700;font-size:13.5px;
 letter-spacing:.6px;white-space:nowrap;
}
.data-table tbody tr{transition:background .2s ease}
.data-table tbody tr:hover{background:rgba(79,140,255,.07)}
.data-table tbody tr:last-child td{border-bottom:0}
.data-table td:first-child{color:#fff;font-weight:700}
.data-table .val{color:#7fe6f6;font-weight:700}
/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;counter-reset:step}
.step-card{
 position:relative;
 background:linear-gradient(160deg,rgba(255,255,255,.055),rgba(255,255,255,.018));
 border:1px solid var(--stroke);border-radius:var(--radius);padding:26px 22px 22px;
 box-shadow:var(--shadow);height:100%;
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--stroke-strong)}
.step-card::before{
 counter-increment:step;content:"0" counter(step);
 position:absolute;top:-16px;left:20px;
 font-size:13px;font-weight:800;letter-spacing:1px;color:#04101f;
 padding:4px 11px;border-radius:999px;
 background:linear-gradient(135deg,#5b95ff,#22d3ee);
 box-shadow:0 0 16px rgba(79,140,255,.5);
}
.step-card h3{font-size:16.5px;font-weight:800;color:#fff;margin:8px 0 9px}
.step-card p{font-size:14.5px;color:var(--muted);line-height:1.75}
/* ---------- read list ---------- */
.read-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.read-item{
 display:flex;gap:14px;align-items:flex-start;
 background:linear-gradient(160deg,rgba(255,255,255,.055),rgba(255,255,255,.02));
 border:1px solid var(--stroke);border-radius:var(--radius);
 padding:18px 20px;box-shadow:var(--shadow);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.read-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--stroke-strong);color:#fff}
.read-dot{
 flex:0 0 auto;width:34px;height:34px;border-radius:10px;
 display:grid;place-items:center;color:#8fc0ff;
 background:rgba(79,140,255,.13);border:1px solid rgba(120,170,255,.26);
}
.read-main{min-width:0}
.read-title{display:block;font-size:15.5px;font-weight:700;color:#eaf1ff;line-height:1.5;margin-bottom:6px;word-break:break-word}
.read-sub{font-size:13px;color:var(--muted);line-height:1.6}
/* ---------- channels ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.channel-card{
 display:block;position:relative;overflow:hidden;
 background:linear-gradient(150deg,rgba(79,140,255,.16),rgba(34,211,238,.06) 60%,rgba(255,255,255,.02));
 border:1px solid var(--stroke);border-radius:var(--radius);
 padding:26px 24px;box-shadow:var(--shadow);height:100%;
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.channel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--stroke-strong);color:#fff}
.channel-card h3{font-size:18px;font-weight:800;color:#fff;margin-bottom:10px}
.channel-card p{font-size:14.5px;color:var(--muted);line-height:1.75;margin-bottom:16px}
.channel-more{
 display:inline-flex;align-items:center;gap:7px;
 font-size:13.5px;font-weight:700;color:#8fe6f5;
}
.channel-card:hover .channel-more{color:#fff}
/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{
 background:linear-gradient(160deg,rgba(255,255,255,.05),rgba(255,255,255,.018));
 border:1px solid var(--stroke);border-radius:var(--radius-sm);
 padding:0 20px;box-shadow:0 8px 22px rgba(3,8,20,.35);
 transition:border-color .2s ease,background .2s ease;
}
.faq-item[open]{border-color:var(--stroke-strong);background:rgba(79,140,255,.07)}
.faq-item summary{
 cursor:pointer;list-style:none;
 padding:16px 0;font-size:15.5px;font-weight:700;color:#e9f1ff;
 display:flex;align-items:center;justify-content:space-between;gap:14px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
 content:"+";font-size:19px;line-height:1;color:#7fe6f6;font-weight:700;flex:0 0 auto;
}
.faq-item[open] summary::after{content:"−"}
.faq-item p{font-size:14.5px;color:var(--muted);line-height:1.8;padding:0 0 18px;margin:0}
/* ---------- cta ---------- */
.cta-band{
 position:relative;overflow:hidden;
 border:1px solid rgba(120,170,255,.3);
 border-radius:18px;
 padding:44px 40px;
 background:
 radial-gradient(520px 240px at 88% 12%, rgba(34,211,238,.20), transparent 68%),
 linear-gradient(140deg,rgba(79,140,255,.22),rgba(13,21,43,.9));
 box-shadow:var(--shadow);
 display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
}
.cta-band h2{font-size:26px;font-weight:800;color:#fff;line-height:1.4;margin-bottom:10px}
.cta-band p{font-size:15px;color:#b8c9e6;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
/* ---------- footer ---------- */
.site-footer{
 margin-top:20px;
 border-top:1px solid rgba(120,170,255,.14);
 background:linear-gradient(180deg,rgba(10,16,34,.65),rgba(7,12,24,.98));
 padding:52px 0 26px;
 position:relative;z-index:1;
}
.footer-grid{
 display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:34px;
 padding-bottom:34px;border-bottom:1px solid rgba(120,170,255,.12);
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-about{font-size:14px;color:var(--muted);line-height:1.8;max-width:420px}
.footer-title{font-size:14.5px;font-weight:800;color:#fff;letter-spacing:.6px;margin-bottom:16px}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14px;color:var(--muted)}
.footer-links a:hover{color:#8fe6f5}
.footer-bottom{
 display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
 padding-top:22px;font-size:13px;color:#7d8cab;
}
/* ---------- responsive ---------- */
@media (max-width:1024px){
 .article-wrap{grid-template-columns:minmax(0,1fr)}
 .article-title{font-size:32px}
 .fact-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
 .channel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
 .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
 .cta-band{padding:34px 28px}
}
@media (max-width:860px){
 .nav-toggle{display:block}
 .nav-cta{display:none}
 .nav-links{
  position:absolute;top:66px;left:0;right:0;
  display:none;flex-direction:column;align-items:stretch;gap:6px;
  padding:14px 18px 20px;
  background:rgba(8,13,26,.98);
  border-bottom:1px solid rgba(120,170,255,.16);
  box-shadow:0 20px 40px rgba(2,6,16,.7);
 }
 .nav-open .nav-links{display:flex}
 .nav-link{padding:12px 16px;border-radius:10px;font-size:15px}
}
@media (max-width:768px){
 .section{padding:54px 0}
 .article-hero{padding:46px 0 38px}
 .article-title{font-size:27px}
 .article-lead{font-size:15px}
 .sec-title{font-size:23px}
 .article-body{padding:24px 20px}
 .article-body h2{font-size:20px}
 .fact-grid,.channel-grid,.steps,.read-grid{grid-template-columns:minmax(0,1fr)}
 .data-table{font-size:13.5px}
 .data-table th,.data-table td{padding:11px 12px}
 .table-wrap{overflow-x:auto}
 .footer-grid{grid-template-columns:1fr}
 .cta-band h2{font-size:22px}
 .footer-bottom{font-size:12.5px}
}
@media (max-width:520px){
 .container-x{padding:0 16px}
 .brand-name{font-size:16px}
 .article-title{font-size:23px;line-height:1.36}
 .hero-tags{gap:7px}
 .btn-glow,.btn-ghost{width:100%;padding:12px 18px}
 .cta-actions{width:100%}
 .article-body{font-size:15px}
 .foot-note{font-size:12px}
}

/* roulang page: category1 */
:root{
 --bg:#070c18;
 --bg-2:#0a1022;
 --bg-3:#0d152b;
 --panel:rgba(255,255,255,.045);
 --panel-2:rgba(255,255,255,.075);
 --stroke:rgba(120,170,255,.16);
 --stroke-strong:rgba(120,170,255,.36);
 --text:#e9effb;
 --muted:#93a3c4;
 --brand:#4f8cff;
 --brand-2:#22d3ee;
 --radius:14px;
 --radius-sm:10px;
 --shadow:0 14px 34px rgba(3,8,20,.55);
 --shadow-hover:0 22px 50px rgba(3,8,20,.72);
 --container:1180px;
 --glow:0 0 22px rgba(79,140,255,.42);
}
html{scroll-behavior:smooth;scroll-padding-top:86px}
body{
 margin:0;
 background:var(--bg);
 color:var(--text);
 font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
 font-size:15.5px;
 line-height:1.78;
 -webkit-font-smoothing:antialiased;
 overflow-x:hidden;
}
body::before{
 content:"";
 position:fixed;
 inset:0;
 background:
 radial-gradient(760px 420px at 12% -6%, rgba(79,140,255,.20), transparent 62%),
 radial-gradient(620px 380px at 92% 4%, rgba(34,211,238,.13), transparent 66%),
 radial-gradient(900px 520px at 50% 108%, rgba(79,140,255,.10), transparent 70%);
 pointer-events:none;
 z-index:0;
}
a{color:inherit;text-decoration:none;transition:color .2s ease,background .2s ease,border-color .2s ease}
a:hover{color:#fff}
img{max-width:100%;display:block}
button{font-family:inherit}
.container-x{width:100%;max-width:var(--container);margin:0 auto;padding:0 22px;position:relative;z-index:1}
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(7,12,24,.76);
 backdrop-filter:blur(16px);
 -webkit-backdrop-filter:blur(16px);
 border-bottom:1px solid rgba(120,170,255,.12);
 transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-stuck{box-shadow:0 12px 30px rgba(2,6,16,.6);background:rgba(7,12,24,.94)}
.nav-inner{min-height:66px;display:flex;align-items:center;gap:18px;position:relative}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
 width:36px;height:36px;border-radius:11px;
 display:grid;place-items:center;
 background:linear-gradient(140deg,#4f8cff,#22d3ee);
 box-shadow:var(--glow);
 color:#05101f;
}
.brand-name{font-size:18px;font-weight:800;letter-spacing:.6px;color:#fff}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
 padding:9px 15px;border-radius:999px;
 font-size:14.5px;color:var(--muted);white-space:nowrap;
 border:1px solid transparent;
}
.nav-link:hover{color:#fff;background:var(--panel)}
.nav-link.active{
 color:#fff;
 background:linear-gradient(140deg,rgba(79,140,255,.24),rgba(34,211,238,.14));
 border-color:rgba(120,170,255,.34);
 box-shadow:inset 0 0 18px rgba(79,140,255,.16);
}
.nav-cta{margin-left:10px}
.nav-toggle{
 display:none;margin-left:auto;
 width:44px;height:44px;border-radius:11px;
 background:var(--panel);border:1px solid var(--stroke);
 cursor:pointer;padding:0;
}
.nav-toggle span{display:block;width:18px;height:2px;margin:3px auto;border-radius:2px;background:#dbe6ff;transition:transform .22s ease,opacity .22s ease}
.nav-open .nav-toggle span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-open .nav-toggle span:nth-child(2){opacity:0}
.nav-open .nav-toggle span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}
.btn-glow,.btn-ghost{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:11px 22px;border-radius:10px;
 font-size:14.5px;font-weight:700;line-height:1;
 cursor:pointer;border:1px solid transparent;
 transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-glow{
 background:linear-gradient(135deg,#5b95ff,#22d3ee);
 color:#04101f;
 box-shadow:0 0 18px rgba(79,140,255,.45);
}
.btn-glow:hover{color:#04101f;transform:translateY(-2px);box-shadow:0 0 26px rgba(79,140,255,.7)}
.btn-glow:active{transform:translateY(0)}
.btn-ghost{background:rgba(255,255,255,.03);border-color:var(--stroke-strong);color:#dce7ff}
.btn-ghost:hover{background:var(--panel-2);color:#fff;transform:translateY(-2px);border-color:rgba(120,170,255,.6)}
.btn-glow:focus-visible,.btn-ghost:focus-visible,.nav-link:focus-visible,.nav-toggle:focus-visible{
 outline:2px solid #7fe6f6;outline-offset:3px;
}
.tag{
 display:inline-block;font-size:12px;line-height:1;
 padding:6px 11px;border-radius:999px;
 color:#a9c6ff;background:rgba(79,140,255,.12);
 border:1px solid rgba(120,170,255,.26);
 white-space:nowrap;
}
.tag-soft{color:#8fe6f5;background:rgba(34,211,238,.10);border-color:rgba(34,211,238,.26)}
.hero{position:relative;overflow:hidden;padding:74px 0 62px;border-bottom:1px solid rgba(120,170,255,.1)}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{
 width:100%;height:100%;object-fit:cover;opacity:.28;
 filter:saturate(.75) contrast(1.05);
 -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.95) 0%,rgba(0,0,0,.5) 62%,rgba(0,0,0,0) 100%);
 mask-image:linear-gradient(180deg,rgba(0,0,0,.95) 0%,rgba(0,0,0,.5) 62%,rgba(0,0,0,0) 100%);
}
.hero::after{
 content:"";position:absolute;inset:0;z-index:0;
 background:linear-gradient(105deg,rgba(7,12,24,.96) 6%,rgba(7,12,24,.8) 46%,rgba(7,12,24,.4) 100%);
}
.hero-grid{
 position:relative;z-index:1;
 display:grid;grid-template-columns:1.12fr .88fr;gap:44px;align-items:center;
}
.hero-badge{
 display:inline-flex;align-items:center;gap:8px;
 font-size:12.5px;letter-spacing:1.4px;
 color:#8fe6f5;padding:7px 14px;border-radius:999px;
 background:rgba(34,211,238,.08);
 border:1px solid rgba(34,211,238,.28);
 margin-bottom:20px;
}
.hero-title{
 font-size:40px;line-height:1.28;font-weight:800;letter-spacing:.8px;
 background:linear-gradient(120deg,#ffffff 12%,#b9d2ff 62%,#7fe6f6 100%);
 -webkit-background-clip:text;background-clip:text;color:transparent;
 margin-bottom:16px;
}
.hero-sub{font-size:16.5px;color:#b9c9e8;margin-bottom:14px}
.hero-lead{font-size:15px;color:var(--muted);max-width:620px;margin-bottom:22px}
.hero-lead strong{color:#dbe7ff;font-weight:700}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.glass-panel{
 background:linear-gradient(160deg,rgba(255,255,255,.075),rgba(255,255,255,.022));
 border:1px solid var(--stroke);
 border-radius:18px;
 box-shadow:var(--shadow);
 backdrop-filter:blur(14px);
 -webkit-backdrop-filter:blur(14px);
 padding:26px 24px;
}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
.panel-title{font-size:15.5px;font-weight:800;color:#fff;margin:0}
.panel-note{font-size:12.5px;color:#8fe6f5}
.panel-nums{display:flex;align-items:flex-end;gap:10px;margin-bottom:14px}
.panel-num{
 font-size:34px;font-weight:800;line-height:1;letter-spacing:.5px;
 background:linear-gradient(120deg,#ffffff,#7fe6f6);
 -webkit-background-clip:text;background-clip:text;color:transparent;
}
.panel-num small{font-size:13px;color:var(--muted);-webkit-text-fill-color:var(--muted);font-weight:600}
.progress-track{height:8px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;margin-bottom:8px}
.progress-fill{height:100%;width:86%;border-radius:999px;background:linear-gradient(90deg,#4f8cff,#22d3ee);box-shadow:0 0 14px rgba(79,140,255,.6)}
.panel-tip{font-size:13px;color:var(--muted);margin-bottom:18px}
.panel-actions{display:flex;flex-wrap:wrap;gap:10px}
.panel-list{list-style:none;margin:18px 0 0;padding:0;border-top:1px dashed rgba(120,170,255,.2);padding-top:14px}
.panel-list li{display:flex;align-items:center;gap:9px;font-size:13.5px;color:#b6c6e4;padding:4px 0}
.dot{width:6px;height:6px;border-radius:50%;background:linear-gradient(135deg,#4f8cff,#22d3ee);flex:0 0 auto;box-shadow:0 0 10px rgba(79,140,255,.8)}
.section{padding:72px 0;position:relative}
.section--alt{background:rgba(255,255,255,.018);border-top:1px solid rgba(120,170,255,.09);border-bottom:1px solid rgba(120,170,255,.09)}
.section-head{max-width:720px;margin-bottom:34px}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:12.5px;letter-spacing:2px;color:#7fd8ec;margin-bottom:12px}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,#4f8cff,#22d3ee)}
.sec-title{font-size:28px;line-height:1.35;font-weight:800;letter-spacing:.6px;color:#fff;margin:0 0 12px}
.sec-desc{font-size:15px;color:var(--muted);margin:0}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.g-card{
 background:linear-gradient(160deg,rgba(255,255,255,.065),rgba(255,255,255,.02));
 border:1px solid var(--stroke);
 border-radius:var(--radius);
 padding:24px 22px;
 box-shadow:var(--shadow);
 backdrop-filter:blur(10px);
 -webkit-backdrop-filter:blur(10px);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
 height:100%;
}
.g-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--stroke-strong)}
.card-icon{
 width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
 background:rgba(79,140,255,.14);border:1px solid rgba(120,170,255,.28);
 color:#8fc0ff;margin-bottom:16px;
}
.card-title{font-size:17px;font-weight:800;color:#fff;margin:0 0 10px}
.card-text{font-size:14px;color:var(--muted);margin:0 0 14px}
.card-tags{display:flex;flex-wrap:wrap;gap:8px}
.rule-card .card-text strong{color:#cfe0ff;font-weight:700}
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;counter-reset:step}
.flow-item{
 position:relative;
 background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.018));
 border:1px solid var(--stroke);
 border-radius:var(--radius);
 padding:22px 18px;
 transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.flow-item:hover{transform:translateY(-3px);border-color:var(--stroke-strong);box-shadow:var(--shadow-hover)}
.flow-num{
 font-size:12.5px;font-weight:800;letter-spacing:1.6px;color:#7fe6f6;
 display:inline-block;margin-bottom:10px;
}
.flow-title{font-size:15.5px;font-weight:800;color:#fff;margin:0 0 8px}
.flow-text{font-size:13.5px;color:var(--muted);margin:0}
.table-wrap{
 overflow-x:auto;
 border:1px solid var(--stroke);
 border-radius:var(--radius);
 background:rgba(255,255,255,.03);
 box-shadow:var(--shadow);
}
table.rule-table{width:100%;border-collapse:collapse;font-size:14px;min-width:520px}
table.rule-table th,table.rule-table td{
 padding:13px 16px;text-align:left;border-bottom:1px solid rgba(120,170,255,.12);
}
table.rule-table thead th{
 background:rgba(79,140,255,.14);color:#dbe7ff;font-weight:800;font-size:13.5px;letter-spacing:.5px;
}
table.rule-table tbody tr:last-child td{border-bottom:none}
table.rule-table tbody tr:hover{background:rgba(79,140,255,.07)}
table.rule-table td{color:#b8c7e4}
table.rule-table td:first-child{color:#fff;font-weight:700}
.note-strip{
 margin-top:20px;padding:18px 20px;border-radius:var(--radius);
 border:1px solid rgba(34,211,238,.26);
 background:linear-gradient(120deg,rgba(34,211,238,.10),rgba(79,140,255,.08));
 font-size:14px;color:#c6e9f5;
}
.note-strip strong{color:#fff;font-weight:800}
.rank-list{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.rank-item{
 display:flex;align-items:flex-start;gap:16px;
 padding:18px 20px;border-radius:var(--radius);
 background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.018));
 border:1px solid var(--stroke);
 transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.rank-item:hover{transform:translateX(4px);border-color:var(--stroke-strong);box-shadow:var(--shadow)}
.rank-badge{
 flex:0 0 auto;width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
 font-weight:800;font-size:14px;color:#04101f;
 background:linear-gradient(135deg,#5b95ff,#22d3ee);
 box-shadow:0 0 16px rgba(79,140,255,.5);
}
.rank-body h3{font-size:15.5px;font-weight:800;color:#fff;margin:0 0 6px}
.rank-body p{font-size:14px;color:var(--muted);margin:0}
.voice-card{position:relative;overflow:hidden}
.voice-card::before{
 content:"";position:absolute;top:-40px;right:-40px;width:120px;height:120px;border-radius:50%;
 background:radial-gradient(circle,rgba(79,140,255,.28),transparent 70%);
 pointer-events:none;
}
.voice-quote{font-size:14.5px;color:#cbd8ef;margin:0 0 16px}
.voice-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted)}
.avatar{
 width:34px;height:34px;border-radius:50%;display:grid;place-items:center;
 font-size:13px;font-weight:800;color:#04101f;
 background:linear-gradient(135deg,#7fb0ff,#22d3ee);
}
.accordion-item{
 background:rgba(255,255,255,.03);
 border:1px solid var(--stroke);
 border-radius:var(--radius) !important;
 margin-bottom:12px;
 overflow:hidden;
}
.accordion-item:last-child{margin-bottom:0}
.accordion-button{
 background:transparent;color:#e9effb;font-size:15.5px;font-weight:700;
 padding:18px 20px;box-shadow:none !important;
}
.accordion-button:not(.collapsed){
 background:linear-gradient(120deg,rgba(79,140,255,.18),rgba(34,211,238,.08));
 color:#fff;
}
.accordion-button::after{filter:brightness(0) invert(1);opacity:.8}
.accordion-body{color:var(--muted);font-size:14.5px;padding:0 20px 20px;background:rgba(255,255,255,.015)}
.accordion-body strong{color:#dbe7ff}
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.channel-card{
 display:block;padding:26px 24px;border-radius:var(--radius);
 border:1px solid var(--stroke);
 background:linear-gradient(160deg,rgba(79,140,255,.10),rgba(255,255,255,.02));
 transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.channel-card:hover{transform:translateY(-4px);border-color:var(--stroke-strong);box-shadow:var(--shadow-hover)}
.channel-card h3{font-size:17px;font-weight:800;color:#fff;margin:0 0 8px}
.channel-card p{font-size:14px;color:var(--muted);margin:0 0 14px}
.channel-more{font-size:13.5px;font-weight:700;color:#8fe6f5}
.cta-band{
 border-radius:18px;
 padding:38px 34px;
 border:1px solid var(--stroke-strong);
 background:
 radial-gradient(600px 240px at 12% 0%,rgba(79,140,255,.28),transparent 70%),
 radial-gradient(520px 240px at 92% 100%,rgba(34,211,238,.18),transparent 70%),
 linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
 box-shadow:var(--shadow);
 display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
}
.cta-band h2{font-size:24px;font-weight:800;color:#fff;margin:0 0 8px}
.cta-band p{font-size:14.5px;color:#b9c9e8;margin:0;max-width:620px}
.site-footer{
 margin-top:0;padding:52px 0 26px;
 border-top:1px solid rgba(120,170,255,.14);
 background:rgba(4,8,17,.72);
 position:relative;z-index:1;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:34px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-about{font-size:14px;color:var(--muted);margin:0;max-width:420px}
.footer-title{font-size:14px;font-weight:800;color:#fff;margin:0 0 14px;letter-spacing:.6px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--muted)}
.footer-links a:hover{color:#8fe6f5}
.footer-bottom{
 margin-top:36px;padding-top:20px;
 border-top:1px solid rgba(120,170,255,.12);
 display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
 font-size:13px;color:#7e8dab;
}
@media (max-width:1024px){
 .hero-grid{grid-template-columns:1fr;gap:32px}
 .hero-title{font-size:34px}
 .grid-3,.grid-4,.channel-grid{grid-template-columns:repeat(2,1fr)}
 .flow{grid-template-columns:repeat(3,1fr)}
 .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
}
@media (max-width:960px){
 .nav-toggle{display:block}
 .nav-cta{margin-left:0}
 .nav-links{
  position:absolute;top:100%;left:0;right:0;
  flex-direction:column;align-items:stretch;gap:6px;
  padding:14px 18px 18px;
  background:rgba(8,13,26,.98);
  border-bottom:1px solid var(--stroke);
  box-shadow:0 18px 40px rgba(2,6,16,.6);
  display:none;
 }
 .nav-open .nav-links{display:flex}
 .nav-link{padding:12px 16px;border-radius:10px}
}
@media (max-width:768px){
 .section{padding:56px 0}
 .hero{padding:56px 0 48px}
 .hero-title{font-size:29px}
 .sec-title{font-size:23px}
 .grid-3,.grid-4,.grid-2,.channel-grid{grid-template-columns:1fr}
 .flow{grid-template-columns:1fr 1fr}
 .footer-grid{grid-template-columns:1fr}
 .cta-band{padding:28px 22px}
 .cta-band h2{font-size:20px}
 .glass-panel{padding:22px 18px}
}
@media (max-width:520px){
 .nav-cta{display:none}
 .container-x{padding:0 16px}
 .hero-title{font-size:25px}
 .hero-sub{font-size:15px}
 .flow{grid-template-columns:1fr}
 .btn-glow,.btn-ghost{width:100%;padding:13px 18px}
 .hero-actions,.panel-actions{flex-direction:column;align-items:stretch}
 .panel-num{font-size:28px}
}

/* roulang page: category2 */
:root{
 --bg:#070c18;
 --bg-2:#0a1022;
 --bg-3:#0d152b;
 --panel:rgba(255,255,255,.045);
 --panel-2:rgba(255,255,255,.075);
 --stroke:rgba(120,170,255,.16);
 --stroke-strong:rgba(120,170,255,.36);
 --text:#e9effb;
 --muted:#93a3c4;
 --brand:#4f8cff;
 --brand-2:#22d3ee;
 --radius:14px;
 --radius-sm:10px;
 --shadow:0 14px 34px rgba(3,8,20,.55);
 --shadow-hover:0 22px 50px rgba(3,8,20,.72);
 --container:1180px;
 --glow:0 0 22px rgba(79,140,255,.42);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:86px}
body{
 margin:0;
 background:var(--bg);
 color:var(--text);
 font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
 font-size:15.5px;
 line-height:1.78;
 -webkit-font-smoothing:antialiased;
 overflow-x:hidden;
}
body::before{
 content:"";
 position:fixed;
 inset:0;
 background:
 radial-gradient(760px 420px at 12% -6%, rgba(79,140,255,.20), transparent 62%),
 radial-gradient(620px 380px at 92% 4%, rgba(34,211,238,.13), transparent 66%),
 radial-gradient(900px 520px at 50% 108%, rgba(79,140,255,.10), transparent 70%);
 pointer-events:none;
 z-index:0;
}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none;transition:color .2s ease,background .2s ease,border-color .2s ease}
a:hover{color:#fff}
img{max-width:100%;display:block}
button{font-family:inherit}
::selection{background:rgba(79,140,255,.38);color:#fff}
:focus-visible{outline:2px solid rgba(34,211,238,.85);outline-offset:3px;border-radius:8px}
.container-x{width:100%;max-width:var(--container);margin:0 auto;padding:0 22px;position:relative;z-index:1}
/* ---------- header ---------- */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(7,12,24,.76);
 backdrop-filter:blur(16px);
 -webkit-backdrop-filter:blur(16px);
 border-bottom:1px solid rgba(120,170,255,.12);
 transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-stuck{box-shadow:0 12px 30px rgba(2,6,16,.6);background:rgba(7,12,24,.94)}
.nav-inner{
 min-height:66px;
 display:flex;align-items:center;gap:18px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
 width:36px;height:36px;border-radius:11px;
 display:grid;place-items:center;
 background:linear-gradient(140deg,#4f8cff,#22d3ee);
 box-shadow:var(--glow);
 color:#05101f;
}
.brand-name{font-size:18px;font-weight:800;letter-spacing:.6px;color:#fff}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
 padding:9px 15px;border-radius:999px;
 font-size:14.5px;color:var(--muted);white-space:nowrap;
 border:1px solid transparent;
}
.nav-link:hover{color:#fff;background:var(--panel)}
.nav-link.active{
 color:#fff;
 background:linear-gradient(140deg,rgba(79,140,255,.24),rgba(34,211,238,.14));
 border-color:rgba(120,170,255,.34);
 box-shadow:inset 0 0 18px rgba(79,140,255,.16);
}
.nav-cta{margin-left:10px}
.nav-toggle{
 display:none;margin-left:auto;
 width:44px;height:44px;border-radius:11px;
 background:var(--panel);border:1px solid var(--stroke);
 cursor:pointer;padding:0;
}
.nav-toggle span{
 display:block;width:18px;height:2px;margin:3px auto;border-radius:2px;
 background:#dbe6ff;transition:transform .22s ease,opacity .22s ease;
}
.nav-open .nav-toggle span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-open .nav-toggle span:nth-child(2){opacity:0}
.nav-open .nav-toggle span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}
/* ---------- buttons & tags ---------- */
.btn-glow,.btn-ghost{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:11px 22px;border-radius:10px;
 font-size:14.5px;font-weight:700;line-height:1;
 cursor:pointer;border:1px solid transparent;
 transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-glow{
 background:linear-gradient(135deg,#5b95ff,#22d3ee);
 color:#04101f;
 box-shadow:0 0 18px rgba(79,140,255,.45);
}
.btn-glow:hover{color:#04101f;transform:translateY(-2px);box-shadow:0 0 26px rgba(79,140,255,.7)}
.btn-glow:active{transform:translateY(0)}
.btn-ghost{
 background:rgba(255,255,255,.03);
 border-color:var(--stroke-strong);
 color:#dce7ff;
}
.btn-ghost:hover{background:var(--panel-2);color:#fff;transform:translateY(-2px);border-color:rgba(120,170,255,.6)}
.btn-sm{padding:9px 16px;font-size:13.5px;border-radius:9px}
.tag{
 display:inline-block;font-size:12px;line-height:1;
 padding:6px 11px;border-radius:999px;
 color:#a9c6ff;background:rgba(79,140,255,.12);
 border:1px solid rgba(120,170,255,.26);
 white-space:nowrap;
}
.tag-soft{color:#8fe6f5;background:rgba(34,211,238,.10);border-color:rgba(34,211,238,.26)}
/* ---------- hero ---------- */
.cat-hero{position:relative;overflow:hidden;padding:58px 0 62px;border-bottom:1px solid rgba(120,170,255,.10)}
.cat-hero::before{
 content:"";position:absolute;inset:0;z-index:0;
 background:
 radial-gradient(620px 340px at 8% 0%, rgba(79,140,255,.24), transparent 66%),
 radial-gradient(520px 320px at 96% 12%, rgba(34,211,238,.15), transparent 70%);
 pointer-events:none;
}
.cat-hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:44px;align-items:center;position:relative;z-index:1}
.crumb{display:flex;gap:8px;align-items:center;font-size:12.5px;color:#7c8db0;margin-bottom:16px}
.crumb a:hover{color:#bcd0f5}
.crumb span{color:#4e5f80}
.hero-badge{
 display:inline-flex;align-items:center;gap:8px;
 font-size:12.5px;letter-spacing:1.4px;
 color:#8fe6f5;padding:7px 14px;border-radius:999px;
 background:rgba(34,211,238,.08);
 border:1px solid rgba(34,211,238,.28);
 margin-bottom:18px;
}
.hero-title{
 font-size:40px;line-height:1.28;font-weight:800;letter-spacing:.6px;
 background:linear-gradient(120deg,#ffffff 12%,#b9d2ff 62%,#7fe6f6 100%);
 -webkit-background-clip:text;background-clip:text;color:transparent;
 margin-bottom:16px;
}
.hero-lead{font-size:15.5px;color:var(--muted);max-width:640px;margin-bottom:22px}
.hero-lead strong{color:#dbe7ff;font-weight:700}
.chip-row{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-panel{
 border-radius:18px;
 border:1px solid var(--stroke-strong);
 background:linear-gradient(165deg,rgba(255,255,255,.085),rgba(255,255,255,.03));
 box-shadow:var(--shadow);
 padding:16px;
 backdrop-filter:blur(14px);
 -webkit-backdrop-filter:blur(14px);
}
.panel-media{border-radius:12px;overflow:hidden;border:1px solid rgba(120,170,255,.18)}
.panel-media img{width:100%;aspect-ratio:16/9;object-fit:cover;filter:saturate(.9)}
.panel-body{padding:16px 6px 4px}
.panel-row{display:flex;gap:12px;padding:11px 0;border-top:1px solid rgba(120,170,255,.12)}
.panel-row:first-child{border-top:0;padding-top:4px}
.panel-dot{
 flex:0 0 auto;width:9px;height:9px;margin-top:9px;border-radius:50%;
 background:linear-gradient(140deg,#4f8cff,#22d3ee);
 box-shadow:0 0 10px rgba(79,140,255,.8);
}
.panel-row strong{display:block;font-size:14.5px;color:#e6eeff;font-weight:700}
.panel-row span{display:block;font-size:13px;color:var(--muted);line-height:1.6}
/* ---------- sections ---------- */
.section{padding:72px 0;position:relative}
.section--alt{
 background:rgba(255,255,255,.018);
 border-top:1px solid rgba(120,170,255,.09);
 border-bottom:1px solid rgba(120,170,255,.09);
}
.section-head{max-width:740px;margin-bottom:34px}
.eyebrow{
 display:inline-flex;align-items:center;gap:9px;
 font-size:12.5px;letter-spacing:2px;color:#7fd8ec;margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,#4f8cff,#22d3ee)}
.sec-title{font-size:28px;line-height:1.4;font-weight:800;color:#f2f6ff;letter-spacing:.4px;margin-bottom:12px}
.sec-lead{font-size:14.8px;color:var(--muted);margin:0}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.grid-split{display:grid;grid-template-columns:1.02fr .98fr;gap:36px;align-items:center}
.card-x{
 padding:24px 22px;border-radius:var(--radius);
 background:var(--panel);
 border:1px solid var(--stroke);
 box-shadow:var(--shadow);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,background .2s ease;
 height:100%;
}
.card-x:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--stroke-strong);background:var(--panel-2)}
.card-icon{
 width:40px;height:40px;border-radius:11px;display:grid;place-items:center;
 background:linear-gradient(140deg,rgba(79,140,255,.26),rgba(34,211,238,.16));
 border:1px solid rgba(120,170,255,.32);
 color:#9fd9ff;margin-bottom:16px;
}
.card-icon svg{width:20px;height:20px}
.card-title{font-size:16.5px;font-weight:800;color:#eef4ff;margin-bottom:8px;letter-spacing:.2px}
.card-text{font-size:14px;color:var(--muted);line-height:1.75;margin-bottom:14px}
.card-tags{display:flex;flex-wrap:wrap;gap:7px}
/* roadmap */
.roadmap-media{border-radius:16px;overflow:hidden;border:1px solid var(--stroke);box-shadow:var(--shadow);position:relative}
.roadmap-media img{width:100%;aspect-ratio:4/3;object-fit:cover;filter:saturate(.9)}
.roadmap-media::after{
 content:"";position:absolute;inset:0;
 background:linear-gradient(180deg,rgba(7,12,24,0) 45%,rgba(7,12,24,.72) 100%);
 pointer-events:none;
}
.roadmap-caption{
 position:absolute;left:16px;right:16px;bottom:14px;z-index:2;
 font-size:13px;color:#c9d8f5;
}
.roadmap-list{display:grid;gap:14px}
.roadmap-item{
 display:grid;grid-template-columns:40px 1fr;gap:14px;
 padding:18px;border-radius:var(--radius-sm);
 background:var(--panel);border:1px solid var(--stroke);
 transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.roadmap-item:hover{border-color:var(--stroke-strong);background:var(--panel-2);transform:translateX(3px)}
.roadmap-num{
 width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
 font-size:14px;font-weight:800;color:#bcd8ff;
 background:rgba(79,140,255,.14);border:1px solid rgba(120,170,255,.3);
}
.roadmap-item strong{display:block;font-size:15px;color:#eaf1ff;margin-bottom:4px}
.roadmap-item p{font-size:13.8px;color:var(--muted);line-height:1.7;margin:0}
/* steps */
.step-list{display:grid;gap:16px}
.step{
 display:grid;grid-template-columns:64px 1fr;gap:20px;align-items:start;
 padding:24px;border-radius:var(--radius);
 background:linear-gradient(150deg,rgba(255,255,255,.06),rgba(255,255,255,.022));
 border:1px solid var(--stroke);
 transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.step:hover{border-color:var(--stroke-strong);transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.step-num{
 font-size:22px;font-weight:800;line-height:1;color:#7fe6f6;
 padding:14px 0;text-align:center;border-radius:12px;
 background:rgba(34,211,238,.08);border:1px solid rgba(34,211,238,.26);
}
.step-body h3{font-size:16.5px;font-weight:800;color:#eef4ff;margin-bottom:8px}
.step-body p{font-size:14.2px;color:var(--muted);margin:0}
/* scene */
.scene-card{
 padding:24px;border-radius:var(--radius);
 background:var(--panel);border:1px solid var(--stroke);
 box-shadow:var(--shadow);height:100%;
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,background .2s ease;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--stroke-strong);background:var(--panel-2)}
.scene-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}
.scene-top h3{font-size:16px;font-weight:800;color:#eef4ff;margin:0}
.scene-card p{font-size:14px;color:var(--muted);margin:0 0 12px}
.scene-point{font-size:13.4px;color:#bcd0f5;padding-top:12px;border-top:1px dashed rgba(120,170,255,.22)}
/* compare table */
.compare-wrap{
 overflow-x:auto;border-radius:var(--radius);
 border:1px solid var(--stroke);background:rgba(255,255,255,.03);
 box-shadow:var(--shadow);
}
table.compare{width:100%;border-collapse:collapse;min-width:700px;font-size:14.2px}
table.compare thead th{
 background:rgba(79,140,255,.13);
 color:#cfe0ff;font-size:12.8px;letter-spacing:.8px;font-weight:700;
 text-align:left;padding:14px 18px;white-space:nowrap;
 border-bottom:1px solid rgba(120,170,255,.2);
}
table.compare td{
 padding:14px 18px;border-top:1px solid rgba(120,170,255,.1);
 color:#c3d0e8;vertical-align:top;line-height:1.7;
}
table.compare tbody tr{transition:background .2s ease}
table.compare tbody tr:hover{background:rgba(79,140,255,.07)}
table.compare td:first-child{color:#fff;font-weight:700;white-space:nowrap}
/* myths */
.myth-item{
 padding:22px;border-radius:var(--radius);
 background:var(--panel);border:1px solid var(--stroke);
 border-left:3px solid rgba(34,211,238,.6);
 transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.myth-item:hover{background:var(--panel-2);transform:translateY(-3px)}
.myth-item h3{font-size:15.5px;font-weight:800;color:#eef4ff;margin-bottom:10px}
.myth-line{display:grid;grid-template-columns:64px 1fr;gap:12px;font-size:13.8px;line-height:1.72;margin-bottom:6px}
.myth-line b{color:#ff9db1;font-weight:700}
.myth-line i{color:#7fe6c8;font-style:normal;font-weight:700}
.myth-line span{color:var(--muted)}
/* posts */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.post-card{
 display:flex;flex-direction:column;gap:10px;
 padding:22px;border-radius:var(--radius);
 background:var(--panel);border:1px solid var(--stroke);
 box-shadow:var(--shadow);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,background .2s ease;
 height:100%;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--stroke-strong);background:var(--panel-2)}
.post-card h3{font-size:15.5px;font-weight:800;color:#eef4ff;line-height:1.55;margin:0}
.post-card p{font-size:13.6px;color:var(--muted);line-height:1.7;margin:0}
.post-meta{font-size:12.5px;color:#7f92b5;margin-top:auto;padding-top:8px;border-top:1px dashed rgba(120,170,255,.2)}
.empty-note{
 padding:26px;border-radius:var(--radius);
 border:1px dashed rgba(120,170,255,.3);background:rgba(255,255,255,.025);
 color:var(--muted);font-size:14px;text-align:center;
}
/* faq */
.faq-item{
 border:1px solid var(--stroke);border-radius:var(--radius);
 background:var(--panel);margin-bottom:12px;overflow:hidden;
 transition:border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:var(--stroke-strong);background:var(--panel-2);box-shadow:var(--shadow)}
.faq-q{
 list-style:none;cursor:pointer;padding:18px 22px;
 display:flex;align-items:center;justify-content:space-between;gap:16px;
 font-size:15.4px;font-weight:700;color:#eaf1ff;
}
.faq-q::-webkit-details-marker{display:none}
.faq-q::after{content:"+";font-size:20px;line-height:1;color:var(--brand-2)}
.faq-item[open] .faq-q::after{content:"−"}
.faq-a{padding:0 22px 20px;font-size:14.2px;color:var(--muted);line-height:1.78}
/* cta band */
.cta-band{
 display:flex;align-items:center;justify-content:space-between;gap:28px;
 padding:40px;border-radius:20px;
 background:linear-gradient(135deg,rgba(79,140,255,.20),rgba(34,211,238,.10) 62%,rgba(255,255,255,.03));
 border:1px solid var(--stroke-strong);
 box-shadow:var(--shadow);
}
.cta-band h2{font-size:24px;font-weight:800;color:#f4f8ff;margin-bottom:8px;letter-spacing:.3px}
.cta-band p{font-size:14.4px;color:#b9c9e8;margin:0;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto}
/* footer */
.site-footer{border-top:1px solid rgba(120,170,255,.14);background:rgba(4,8,18,.7);padding:52px 0 26px;position:relative;z-index:1}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:34px;padding-bottom:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-about{font-size:13.8px;color:var(--muted);max-width:400px;margin:0}
.footer-title{font-size:13.5px;font-weight:800;color:#dce7ff;letter-spacing:1px;margin-bottom:14px}
.footer-links{display:grid;gap:9px}
.footer-links a{font-size:13.8px;color:var(--muted)}
.footer-links a:hover{color:#8fe6f5}
.footer-bottom{
 display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
 padding-top:20px;border-top:1px solid rgba(120,170,255,.12);
 font-size:12.8px;color:#6f81a5;
}
/* ---------- responsive ---------- */
@media (max-width:1024px){
 .cat-hero-grid{grid-template-columns:1fr;gap:30px}
 .hero-title{font-size:33px}
 .grid-4{grid-template-columns:repeat(2,1fr)}
 .grid-3,.post-grid{grid-template-columns:repeat(2,1fr)}
 .grid-split{grid-template-columns:1fr;gap:26px}
 .cta-band{flex-direction:column;align-items:flex-start;padding:32px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
}
@media (max-width:900px){
 .nav-toggle{display:block}
 .nav-cta{display:none}
 .nav-links{
  position:absolute;top:100%;left:0;right:0;margin-left:0;
  display:none;flex-direction:column;align-items:stretch;gap:6px;
  padding:14px 18px 20px;
  background:rgba(8,13,26,.98);
  border-bottom:1px solid var(--stroke);
  box-shadow:0 20px 44px rgba(2,6,16,.65);
 }
 .nav-open .nav-links{display:flex}
 .nav-link{padding:12px 14px;border-radius:10px;font-size:15px}
}
@media (max-width:768px){
 .section{padding:54px 0}
 .sec-title{font-size:23px}
 .hero-title{font-size:29px}
 .grid-4,.grid-3,.grid-2,.post-grid{grid-template-columns:1fr}
 .step{grid-template-columns:52px 1fr;gap:14px;padding:20px}
 .myth-line{grid-template-columns:52px 1fr}
 .footer-grid{grid-template-columns:1fr}
 .cat-hero{padding:40px 0 46px}
 .cta-band h2{font-size:20px}
}
@media (max-width:520px){
 .container-x{padding:0 16px}
 .hero-title{font-size:25px}
 .sec-title{font-size:21px}
 .card-x,.scene-card,.post-card{padding:18px}
 .btn-glow,.btn-ghost{padding:11px 18px;font-size:14px;min-height:44px;width:100%}
 .hero-actions{flex-direction:column;align-items:stretch}
 .cta-actions{width:100%}
 .footer-bottom{flex-direction:column;align-items:flex-start}
 .brand-name{font-size:16.5px}
}

/* roulang page: category3 */
:root{
 --bg:#070c18;
 --bg-2:#0a1022;
 --bg-3:#0d152b;
 --panel:rgba(255,255,255,.045);
 --panel-2:rgba(255,255,255,.075);
 --stroke:rgba(120,170,255,.16);
 --stroke-strong:rgba(120,170,255,.36);
 --text:#e9effb;
 --muted:#93a3c4;
 --brand:#4f8cff;
 --brand-2:#22d3ee;
 --radius:14px;
 --radius-sm:10px;
 --shadow:0 14px 34px rgba(3,8,20,.55);
 --shadow-hover:0 22px 50px rgba(3,8,20,.72);
 --container:1180px;
 --glow:0 0 22px rgba(79,140,255,.42);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:88px}
body{
 margin:0;
 background:var(--bg);
 color:var(--text);
 font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
 font-size:15.5px;
 line-height:1.78;
 -webkit-font-smoothing:antialiased;
 overflow-x:hidden;
}
body::before{
 content:"";
 position:fixed;
 inset:0;
 background:
 radial-gradient(760px 420px at 12% -6%, rgba(79,140,255,.20), transparent 62%),
 radial-gradient(620px 380px at 92% 4%, rgba(34,211,238,.13), transparent 66%),
 radial-gradient(900px 520px at 50% 108%, rgba(79,140,255,.10), transparent 70%);
 pointer-events:none;
 z-index:0;
}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.32;letter-spacing:.3px}
p{margin:0 0 12px}
a{color:inherit;text-decoration:none;transition:color .2s ease,background .2s ease,border-color .2s ease}
a:hover{color:#fff}
img{max-width:100%;display:block}
button{font-family:inherit}
ul,ol{margin:0}
::selection{background:rgba(79,140,255,.35);color:#fff}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:3px;border-radius:6px}
.container-x{width:100%;max-width:var(--container);margin:0 auto;padding:0 22px;position:relative;z-index:1}

/* ---------- header ---------- */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(7,12,24,.76);
 backdrop-filter:blur(16px);
 -webkit-backdrop-filter:blur(16px);
 border-bottom:1px solid rgba(120,170,255,.12);
 transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-stuck{box-shadow:0 12px 30px rgba(2,6,16,.6);background:rgba(7,12,24,.94)}
.nav-inner{min-height:66px;display:flex;align-items:center;gap:18px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
 width:36px;height:36px;border-radius:11px;
 display:grid;place-items:center;
 background:linear-gradient(140deg,#4f8cff,#22d3ee);
 box-shadow:var(--glow);
 color:#05101f;
}
.brand-name{font-size:18px;font-weight:800;letter-spacing:.6px;color:#fff}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
 padding:9px 15px;border-radius:999px;
 font-size:14.5px;color:var(--muted);white-space:nowrap;
 border:1px solid transparent;
}
.nav-link:hover{color:#fff;background:var(--panel)}
.nav-link.active{
 color:#fff;
 background:linear-gradient(140deg,rgba(79,140,255,.24),rgba(34,211,238,.14));
 border-color:rgba(120,170,255,.34);
 box-shadow:inset 0 0 18px rgba(79,140,255,.16);
}
.nav-cta{margin-left:10px;white-space:nowrap}
.nav-toggle{
 display:none;margin-left:auto;
 width:44px;height:44px;border-radius:11px;
 background:var(--panel);border:1px solid var(--stroke);
 cursor:pointer;padding:0;
}
.nav-toggle span{
 display:block;width:18px;height:2px;margin:3px auto;border-radius:2px;
 background:#dbe6ff;transition:transform .22s ease,opacity .22s ease;
}
.nav-open .nav-toggle span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-open .nav-toggle span:nth-child(2){opacity:0}
.nav-open .nav-toggle span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

/* ---------- buttons & tags ---------- */
.btn-glow,.btn-ghost{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:11px 22px;border-radius:10px;
 font-size:14.5px;font-weight:700;line-height:1;
 cursor:pointer;border:1px solid transparent;
 transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-glow{
 background:linear-gradient(135deg,#5b95ff,#22d3ee);
 color:#04101f;
 box-shadow:0 0 18px rgba(79,140,255,.45);
}
.btn-glow:hover{color:#04101f;transform:translateY(-2px);box-shadow:0 0 26px rgba(79,140,255,.7)}
.btn-glow:active{transform:translateY(0)}
.btn-ghost{
 background:rgba(255,255,255,.03);
 border-color:var(--stroke-strong);
 color:#dce7ff;
}
.btn-ghost:hover{background:var(--panel-2);color:#fff;transform:translateY(-2px);border-color:rgba(120,170,255,.6)}
.tag{
 display:inline-block;font-size:12px;line-height:1;
 padding:6px 11px;border-radius:999px;
 color:#a9c6ff;background:rgba(79,140,255,.12);
 border:1px solid rgba(120,170,255,.26);
 white-space:nowrap;
}
.tag-soft{color:#8fe6f5;background:rgba(34,211,238,.10);border-color:rgba(34,211,238,.26)}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:74px 0 62px;border-bottom:1px solid rgba(120,170,255,.1)}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{
 width:100%;height:100%;object-fit:cover;
 opacity:.28;
 filter:saturate(.75) contrast(1.05);
 -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.95) 0%,rgba(0,0,0,.55) 62%,rgba(0,0,0,0) 100%);
 mask-image:linear-gradient(180deg,rgba(0,0,0,.95) 0%,rgba(0,0,0,.55) 62%,rgba(0,0,0,0) 100%);
}
.hero::after{
 content:"";position:absolute;inset:0;z-index:0;
 background:linear-gradient(105deg,rgba(7,12,24,.96) 8%,rgba(7,12,24,.78) 48%,rgba(7,12,24,.44) 100%);
}
.hero-grid{
 position:relative;z-index:1;
 display:grid;grid-template-columns:1.12fr .88fr;gap:46px;align-items:start;
}
.hero-badge{
 display:inline-flex;align-items:center;gap:8px;
 font-size:12.5px;letter-spacing:1.4px;
 color:#8fe6f5;padding:7px 14px;border-radius:999px;
 background:rgba(34,211,238,.08);
 border:1px solid rgba(34,211,238,.28);
 margin-bottom:20px;
}
.hero-title{
 font-size:42px;line-height:1.26;letter-spacing:1px;
 background:linear-gradient(120deg,#ffffff 12%,#b9d2ff 62%,#7fe6f6 100%);
 -webkit-background-clip:text;background-clip:text;color:transparent;
 margin-bottom:16px;
}
.hero-sub{font-size:17px;color:#b9c9e8;margin-bottom:14px}
.hero-lead{font-size:15.2px;color:var(--muted);max-width:640px;margin-bottom:24px}
.hero-lead strong{color:#dbe7ff;font-weight:700}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px}

/* hero stage panel */
.stage-panel{
 background:linear-gradient(160deg,rgba(255,255,255,.075),rgba(255,255,255,.028));
 border:1px solid var(--stroke-strong);
 border-radius:18px;
 padding:22px;
 box-shadow:var(--shadow);
 backdrop-filter:blur(14px);
 -webkit-backdrop-filter:blur(14px);
}
.stage-head{font-size:13px;letter-spacing:1.6px;color:#7fd8ec;margin-bottom:14px}
.stage-tabs{display:flex;gap:6px;background:rgba(255,255,255,.04);padding:5px;border-radius:11px;margin-bottom:18px}
.stage-tab{
 flex:1;padding:9px 6px;border-radius:8px;
 border:1px solid transparent;background:transparent;
 color:var(--muted);font-size:12.8px;cursor:pointer;
 transition:background .2s ease,color .2s ease,box-shadow .2s ease;
 white-space:nowrap;
}
.stage-tab:hover{color:#fff;background:rgba(255,255,255,.05)}
.stage-tab.is-on{
 background:linear-gradient(135deg,#5b95ff,#22d3ee);
 color:#04101f;font-weight:800;
 box-shadow:0 0 16px rgba(79,140,255,.42);
}
.stage-body h3{font-size:17px;margin-bottom:8px;color:#f0f5ff}
.stage-body p{font-size:14px;color:var(--muted);margin-bottom:0}
.stage-list{list-style:none;padding:0;margin:14px 0 0;display:grid;gap:9px}
.stage-list li{position:relative;padding-left:20px;font-size:13.8px;color:#c2d1ec;line-height:1.65}
.stage-list li::before{
 content:"";position:absolute;left:0;top:8px;width:7px;height:7px;border-radius:50%;
 background:linear-gradient(135deg,#4f8cff,#22d3ee);
 box-shadow:0 0 10px rgba(79,140,255,.8);
}

/* ---------- sections ---------- */
.section{padding:72px 0;position:relative}
.section--alt{
 background:rgba(255,255,255,.018);
 border-top:1px solid rgba(120,170,255,.09);
 border-bottom:1px solid rgba(120,170,255,.09);
}
.section-head{max-width:740px;margin-bottom:34px}
.eyebrow{
 display:inline-flex;align-items:center;gap:9px;
 font-size:12.5px;letter-spacing:2px;color:#7fd8ec;margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,#4f8cff,#22d3ee)}
.sec-title{font-size:29px;color:#f2f6ff;margin-bottom:12px}
.sec-lead{color:var(--muted);font-size:15px;margin:0;max-width:680px}

/* ---------- cards ---------- */
.card-glass{
 position:relative;height:100%;
 padding:24px 22px;
 background:linear-gradient(165deg,rgba(255,255,255,.07),rgba(255,255,255,.028));
 border:1px solid var(--stroke);
 border-radius:var(--radius);
 box-shadow:var(--shadow);
 backdrop-filter:blur(10px);
 -webkit-backdrop-filter:blur(10px);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card-glass:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--stroke-strong)}
.card-icon{
 width:42px;height:42px;border-radius:12px;
 display:grid;place-items:center;margin-bottom:16px;
 background:linear-gradient(140deg,rgba(79,140,255,.28),rgba(34,211,238,.16));
 border:1px solid rgba(120,170,255,.3);
 color:#9fd6ff;
}
.card-title{font-size:17px;color:#f0f5ff;margin-bottom:10px}
.card-text{font-size:14.3px;color:var(--muted);margin-bottom:16px;line-height:1.75}
.card-tag{margin-top:auto}

/* figure / split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:42px;align-items:center}
.figure{
 border-radius:16px;overflow:hidden;
 border:1px solid var(--stroke);
 box-shadow:var(--shadow);
 background:var(--bg-3);
}
.figure img{width:100%;aspect-ratio:16/10;object-fit:cover}
.figure figcaption{font-size:12.6px;color:#8395b8;padding:12px 16px;border-top:1px solid rgba(120,170,255,.12)}
.scene-list{list-style:none;padding:0;display:grid;gap:14px}
.scene-list li{
 padding:16px 18px;border-radius:12px;
 background:var(--panel);border:1px solid var(--stroke);
 font-size:14.4px;color:#c6d4ee;
}
.scene-list b{display:block;color:#eaf2ff;font-size:15px;margin-bottom:4px}

/* stats */
.stat-band{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.stat{
 padding:22px 20px;border-radius:var(--radius);
 background:linear-gradient(170deg,rgba(79,140,255,.14),rgba(255,255,255,.03));
 border:1px solid var(--stroke);
 box-shadow:var(--shadow);
 transition:transform .2s ease,border-color .2s ease;
}
.stat:hover{transform:translateY(-3px);border-color:var(--stroke-strong)}
.stat-num{
 font-size:29px;font-weight:800;line-height:1.1;margin-bottom:8px;
 background:linear-gradient(120deg,#ffffff,#8fc4ff 60%,#7fe6f6);
 -webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-label{font-size:13.4px;color:var(--muted);line-height:1.6}
.note-line{font-size:13px;color:#7f90b2;margin:18px 0 0}

/* steps */
.steps{list-style:none;padding:0;display:grid;gap:16px}
.step{
 display:grid;grid-template-columns:54px 1fr;gap:18px;
 padding:20px 22px;border-radius:var(--radius);
 background:var(--panel);border:1px solid var(--stroke);
 transition:border-color .2s ease,transform .2s ease;
}
.step:hover{border-color:var(--stroke-strong);transform:translateY(-2px)}
.step-no{
 width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
 font-weight:800;font-size:16px;color:#04101f;
 background:linear-gradient(140deg,#5b95ff,#22d3ee);
 box-shadow:var(--glow);
}
.step h3{font-size:16.5px;color:#f0f5ff;margin-bottom:6px}
.step p{font-size:14.2px;color:var(--muted);margin:0}

/* check list */
.check-list{list-style:none;padding:0;display:grid;gap:12px}
.check-list li{
 display:grid;grid-template-columns:26px 1fr;gap:12px;
 padding:16px 18px;border-radius:12px;
 background:var(--panel);border:1px solid var(--stroke);
 font-size:14.4px;color:#c6d4ee;line-height:1.72;
 transition:border-color .2s ease,background .2s ease;
}
.check-list li:hover{border-color:var(--stroke-strong);background:var(--panel-2)}
.check-list b{color:#eaf2ff}
.mark-x{
 width:22px;height:22px;border-radius:7px;display:grid;place-items:center;margin-top:2px;
 background:rgba(255,120,150,.12);border:1px solid rgba(255,120,150,.32);
 color:#ff9db5;font-size:12px;font-weight:800;
}

/* faq */
.faq{display:grid;gap:12px;max-width:920px}
.faq details{
 border:1px solid var(--stroke);border-radius:12px;
 background:var(--panel);overflow:hidden;
 transition:border-color .2s ease,background .2s ease;
}
.faq details:hover{border-color:var(--stroke-strong)}
.faq details[open]{background:var(--panel-2);border-color:var(--stroke-strong)}
.faq summary{
 list-style:none;cursor:pointer;position:relative;
 padding:16px 48px 16px 18px;
 font-size:15.2px;font-weight:700;color:#eaf2ff;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
 content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);
 font-size:19px;font-weight:700;color:#7fd8ec;
}
.faq details[open] summary::after{content:"–"}
.faq-body{padding:0 18px 16px;font-size:14.2px;color:var(--muted);line-height:1.78}

/* post list */
.post-card{
 display:flex;flex-direction:column;gap:10px;height:100%;
 padding:22px 20px;border-radius:var(--radius);
 background:linear-gradient(165deg,rgba(255,255,255,.06),rgba(255,255,255,.024));
 border:1px solid var(--stroke);
 box-shadow:var(--shadow);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--stroke-strong)}
.post-title{font-size:16px;color:#f0f5ff;line-height:1.55}
.post-sum{font-size:13.8px;color:var(--muted);margin:0;line-height:1.72}
.post-meta{font-size:12.5px;color:#7f90b2;margin-top:auto}
.empty-note{
 padding:26px;border-radius:12px;text-align:center;
 border:1px dashed rgba(120,170,255,.28);background:var(--panel);
 color:var(--muted);font-size:14px;margin:0;
}

/* cta band */
.cta-band{
 position:relative;overflow:hidden;
 display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
 padding:42px 38px;border-radius:20px;
 background:linear-gradient(120deg,rgba(79,140,255,.20),rgba(34,211,238,.10));
 border:1px solid var(--stroke-strong);
 box-shadow:var(--shadow);
}
.cta-band h2{font-size:25px;color:#f4f8ff;margin-bottom:8px}
.cta-band p{font-size:14.4px;color:#b8c8e6;margin:0;max-width:600px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- footer ---------- */
.site-footer{
 position:relative;margin-top:10px;padding:56px 0 26px;
 border-top:1px solid rgba(120,170,255,.14);
 background:rgba(5,9,18,.78);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:36px;padding-bottom:30px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-about{color:var(--muted);font-size:14px;max-width:360px;margin:0}
.footer-title{font-size:14.5px;color:#dfe9ff;margin-bottom:14px;letter-spacing:.5px}
.footer-links{display:grid;gap:9px;font-size:14px;color:var(--muted)}
.footer-links a:hover{color:#8fe6f5}
.footer-bottom{
 display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
 padding-top:20px;border-top:1px solid rgba(120,170,255,.12);
 font-size:13px;color:#7b8bab;
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
 .hero{padding:60px 0 52px}
 .hero-grid{grid-template-columns:1fr;gap:34px}
 .hero-title{font-size:35px}
 .split{grid-template-columns:1fr;gap:28px}
 .stat-band{grid-template-columns:repeat(2,1fr)}
 .footer-grid{grid-template-columns:1fr 1fr}
 .section{padding:60px 0}
}
@media (max-width:991px){
 .nav-toggle{display:block}
 .nav-links{
  position:absolute;top:100%;left:0;right:0;
  display:none;flex-direction:column;align-items:stretch;gap:4px;
  margin:0;padding:14px 22px 18px;
  background:rgba(8,13,26,.98);
  border-bottom:1px solid var(--stroke);
  box-shadow:0 20px 40px rgba(2,6,16,.6);
 }
 .nav-open .nav-links{display:flex}
 .nav-link{padding:12px 14px;border-radius:10px;font-size:15px}
 .nav-cta{display:none}
}
@media (max-width:768px){
 .nav-inner{min-height:62px}
 .hero{padding:52px 0 46px}
 .hero-title{font-size:31px}
 .hero-sub{font-size:15.5px}
 .sec-title{font-size:24px}
 .section{padding:52px 0}
 .cta-band{padding:30px 22px}
 .cta-band h2{font-size:21px}
 .footer-grid{grid-template-columns:1fr;gap:26px}
 .step{grid-template-columns:1fr;gap:12px}
}
@media (max-width:520px){
 .container-x{padding:0 16px}
 .hero-title{font-size:26px;letter-spacing:.4px}
 .hero-actions .btn-glow,.hero-actions .btn-ghost{width:100%}
 .stat-band{grid-template-columns:1fr}
 .stage-tabs{flex-direction:column}
 .stage-tab{text-align:center;padding:10px}
 .cta-actions .btn-glow,.cta-actions .btn-ghost{width:100%}
 .footer-bottom{flex-direction:column;gap:6px}
}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}