/* roulang page: index */
:root{
  --bg:#050a16;
  --bg-soft:#081227;
  --bg-soft2:#0a1730;
  --panel:rgba(16,30,56,.72);
  --glass:rgba(255,255,255,.045);
  --glass-strong:rgba(255,255,255,.075);
  --border:rgba(255,255,255,.09);
  --border-lit:rgba(120,180,255,.38);
  --text:#e9eefb;
  --muted:#94a4c6;
  --muted-2:#7b8aa9;
  --brand:#3d8bff;
  --brand-2:#22d3ee;
  --glow:rgba(61,139,255,.45);
  --radius:14px;
  --radius-sm:10px;
  --radius-lg:20px;
  --shadow:0 18px 44px rgba(2,8,23,.55);
  --shadow-sm:0 8px 22px rgba(2,8,23,.4);
  --container:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 520px at 82% -8%, rgba(34,211,238,.16), transparent 65%),
    radial-gradient(760px 480px at 8% 4%, rgba(61,139,255,.20), transparent 62%),
    radial-gradient(700px 500px at 50% 108%, rgba(61,139,255,.10), transparent 70%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;border-radius:var(--radius);}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
::selection{background:rgba(61,139,255,.4);color:#fff;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{
  outline:2px solid var(--brand-2);
  outline-offset:3px;
  border-radius:8px;
}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}
.glass{
  background:linear-gradient(160deg,rgba(255,255,255,.075),rgba(255,255,255,.028));
  border:1px solid var(--border);
  border-radius:var(--radius);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow-sm);
}

/* ============ HEADER ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(6,12,26,.82);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(255,255,255,.07);
  box-shadow:0 10px 30px rgba(2,7,20,.45);
}
.header-inner{
  height:66px;
  display:flex;
  align-items:center;
  gap:22px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  font-size:19px;
  letter-spacing:.5px;
  white-space:nowrap;
  color:#fff;
}
.brand-mark{
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:10px;
  background:linear-gradient(135deg,rgba(61,139,255,.9),rgba(34,211,238,.85));
  box-shadow:0 0 20px rgba(61,139,255,.55);
  flex:none;
}
.brand-mark svg{width:19px;height:19px;stroke:#04101f;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;}
.nav-main{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:8px;
}
.nav-link{
  position:relative;
  padding:9px 14px;
  font-size:15px;
  color:var(--muted);
  border-radius:9px;
  transition:color .2s ease,background .2s ease;
  white-space:nowrap;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.06);}
.nav-link.is-active{
  color:#fff;
  background:rgba(61,139,255,.16);
  box-shadow:inset 0 0 0 1px rgba(61,139,255,.4);
}
.header-right{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.search-box{
  display:flex;
  align-items:center;
  gap:8px;
  padding:8px 12px;
  border-radius:999px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.04);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box:focus-within{
  border-color:var(--border-lit);
  box-shadow:0 0 0 3px rgba(61,139,255,.18);
}
.search-box svg{width:15px;height:15px;stroke:var(--muted);fill:none;stroke-width:1.9;stroke-linecap:round;flex:none;}
.search-box input{
  width:140px;
  border:0;
  background:transparent;
  font-size:14px;
  color:var(--text);
  outline:none;
}
.search-box input::placeholder{color:var(--muted-2);}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 20px;
  font-size:15px;
  font-weight:600;
  border-radius:9px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
  white-space:nowrap;
  min-height:42px;
}
.btn-primary{
  background:linear-gradient(135deg,#3d8bff,#22d3ee);
  color:#04101f;
  box-shadow:0 0 0 1px rgba(120,190,255,.4),0 10px 26px rgba(61,139,255,.4);
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(150,215,255,.6),0 16px 34px rgba(61,139,255,.55);
}
.btn-ghost{
  background:rgba(255,255,255,.04);
  border-color:var(--border);
  color:var(--text);
}
.btn-ghost:hover{
  border-color:var(--border-lit);
  background:rgba(61,139,255,.12);
  transform:translateY(-2px);
}
.btn-sm{padding:9px 16px;font-size:14px;min-height:38px;}
.nav-cta{box-shadow:0 0 0 1px rgba(120,190,255,.35),0 0 22px rgba(61,139,255,.5);}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:10px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.05);
  cursor:pointer;
  align-items:center;
  justify-content:center;
}
.nav-toggle svg{width:20px;height:20px;stroke:#fff;fill:none;stroke-width:2;stroke-linecap:round;}
.mobile-nav{
  display:none;
  padding:10px 0 18px;
  border-top:1px solid rgba(255,255,255,.07);
}
.mobile-nav.is-open{display:block;}
.mobile-nav a{
  display:block;
  padding:12px 6px;
  font-size:15px;
  color:var(--muted);
  border-bottom:1px solid rgba(255,255,255,.05);
}
.mobile-nav a.is-active{color:#fff;}
.mobile-nav .btn{width:100%;margin-top:14px;}

/* ============ HERO ============ */
.hero{
  position:relative;
  padding:78px 0 86px;
  overflow:hidden;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.hero-bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/1c7e55694416df4b.webp');
  background-size:cover;
  background-position:center;
  opacity:.34;
  filter:saturate(1.05);
}
.hero-bg::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(100deg,rgba(5,10,22,.96) 6%,rgba(5,10,22,.82) 46%,rgba(8,18,39,.62) 100%),
    radial-gradient(700px 400px at 88% 12%,rgba(34,211,238,.18),transparent 68%);
}
.hero-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:52px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:7px 16px;
  border-radius:999px;
  font-size:13px;
  letter-spacing:.6px;
  color:#bfe0ff;
  background:rgba(61,139,255,.14);
  border:1px solid rgba(61,139,255,.36);
  box-shadow:0 0 22px rgba(61,139,255,.22);
}
.eyebrow .dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--brand-2);
  box-shadow:0 0 12px var(--brand-2);
}
.hero h1{
  margin-top:22px;
  font-size:44px;
  line-height:1.24;
  font-weight:800;
  letter-spacing:.4px;
  background:linear-gradient(120deg,#ffffff 22%,#9ed4ff 62%,#5ff0ff 100%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-sub{
  margin-top:16px;
  font-size:17px;
  color:#a9c6ee;
  font-weight:500;
}
.hero-lead{
  margin-top:18px;
  font-size:15.5px;
  line-height:1.85;
  color:var(--muted);
  max-width:640px;
}
.hero-lead strong{color:#d8e8ff;font-weight:600;}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:28px;
}
.hero-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:26px;
}
.tag{
  padding:7px 14px;
  font-size:13px;
  color:#b9cff1;
  border-radius:999px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--border);
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.tag:hover{border-color:var(--border-lit);color:#fff;background:rgba(61,139,255,.14);}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:30px;
  margin-top:34px;
  padding-top:24px;
  border-top:1px solid rgba(255,255,255,.08);
}
.hero-stats .stat-num{
  font-size:24px;
  font-weight:800;
  color:#8fd6ff;
  letter-spacing:.5px;
}
.hero-stats .stat-label{
  font-size:13px;
  color:var(--muted-2);
  margin-top:2px;
}
.lead-card{
  padding:28px 26px 24px;
  border-radius:var(--radius-lg);
  background:linear-gradient(165deg,rgba(26,46,84,.82),rgba(10,20,40,.86));
  border:1px solid rgba(120,180,255,.26);
  box-shadow:0 24px 60px rgba(2,8,23,.6),0 0 0 1px rgba(255,255,255,.04) inset;
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
}
.lead-card h2{
  font-size:21px;
  font-weight:700;
  letter-spacing:.3px;
}
.lead-card .lead-desc{
  margin-top:8px;
  font-size:14px;
  color:var(--muted);
  line-height:1.7;
}
.field{
  margin-top:18px;
}
.field label{
  display:block;
  font-size:13px;
  color:#a9c0e2;
  margin-bottom:7px;
  letter-spacing:.3px;
}
.field input,
.field select{
  width:100%;
  padding:12px 14px;
  font-size:14.5px;
  border-radius:10px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(6,14,30,.72);
  color:var(--text);
  outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
  min-height:44px;
}
.field input::placeholder{color:#63769a;}
.field input:focus,
.field select:focus{
  border-color:var(--border-lit);
  box-shadow:0 0 0 3px rgba(61,139,255,.2);
}
.lead-card .btn{width:100%;margin-top:20px;}
.form-hint{
  margin-top:12px;
  font-size:12.5px;
  color:var(--muted-2);
  line-height:1.65;
}
.form-ok{
  display:none;
  margin-top:14px;
  padding:11px 14px;
  border-radius:10px;
  font-size:13.5px;
  color:#9ff2d8;
  background:rgba(34,211,238,.12);
  border:1px solid rgba(34,211,238,.35);
}
.form-ok.is-show{display:block;}

/* ============ SECTIONS ============ */
.section{
  padding:76px 0;
  position:relative;
}
.section--alt{
  background:linear-gradient(180deg,rgba(8,18,39,.9),rgba(6,13,29,.55));
  border-top:1px solid rgba(255,255,255,.05);
  border-bottom:1px solid rgba(255,255,255,.05);
}
.section--glow{
  background:
    radial-gradient(620px 320px at 78% 0%,rgba(61,139,255,.14),transparent 70%),
    radial-gradient(520px 300px at 8% 100%,rgba(34,211,238,.10),transparent 70%);
}
.section-head{
  max-width:760px;
  margin-bottom:38px;
}
.section-head.center{
  margin-left:auto;
  margin-right:auto;
  text-align:center;
}
.kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:1.4px;
  color:#7fc4ff;
  text-transform:uppercase;
  margin-bottom:12px;
}
.kicker::before{
  content:"";
  width:22px;height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
  box-shadow:0 0 12px var(--glow);
}
.section-title{
  font-size:30px;
  line-height:1.35;
  font-weight:800;
  letter-spacing:.4px;
  color:#fff;
}
.section-title em{
  font-style:normal;
  color:#7fd4ff;
}
.section-desc{
  margin-top:14px;
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}

.card{
  position:relative;
  padding:26px 24px;
  border-radius:var(--radius);
  background:linear-gradient(165deg,rgba(255,255,255,.068),rgba(255,255,255,.022));
  border:1px solid var(--border);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease,background .22s ease;
  height:100%;
}
.card:hover{
  transform:translateY(-4px);
  border-color:var(--border-lit);
  box-shadow:0 22px 48px rgba(2,8,23,.62),0 0 0 1px rgba(120,190,255,.22) inset;
  background:linear-gradient(165deg,rgba(255,255,255,.095),rgba(255,255,255,.03));
}
.card-icon{
  width:42px;height:42px;
  display:grid;place-items:center;
  border-radius:11px;
  background:rgba(61,139,255,.16);
  border:1px solid rgba(61,139,255,.32);
  margin-bottom:16px;
}
.card-icon svg{width:21px;height:21px;stroke:#7fd4ff;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.card-title{
  font-size:17.5px;
  font-weight:700;
  color:#fff;
  letter-spacing:.3px;
  line-height:1.5;
}
.card-text{
  margin-top:10px;
  font-size:14.5px;
  line-height:1.78;
  color:var(--muted);
}
.card-tag{
  display:inline-block;
  margin-top:16px;
  padding:5px 12px;
  font-size:12.5px;
  border-radius:999px;
  color:#9fd0ff;
  background:rgba(61,139,255,.13);
  border:1px solid rgba(61,139,255,.3);
}
.card-num{
  position:absolute;
  top:20px;right:22px;
  font-size:13px;
  font-weight:700;
  color:rgba(140,190,255,.5);
  letter-spacing:1px;
}

/* demo */
.demo-grid{
  display:grid;
  grid-template-columns:1.02fr .98fr;
  gap:40px;
  align-items:center;
}
.steps{display:flex;flex-direction:column;gap:16px;}
.step{
  display:flex;
  gap:16px;
  padding:18px 20px;
  border-radius:var(--radius);
  background:rgba(255,255,255,.042);
  border:1px solid var(--border);
  transition:border-color .2s ease,transform .2s ease,background .2s ease;
}
.step:hover{transform:translateX(4px);border-color:var(--border-lit);background:rgba(61,139,255,.1);}
.step-index{
  flex:none;
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:10px;
  font-weight:800;
  font-size:15px;
  color:#04101f;
  background:linear-gradient(135deg,#5aa5ff,#22d3ee);
  box-shadow:0 0 18px rgba(61,139,255,.45);
}
.step-body h3{font-size:16px;font-weight:700;color:#fff;}
.step-body p{margin-top:6px;font-size:14px;line-height:1.72;color:var(--muted);}
.demo-visual{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid rgba(120,180,255,.24);
  box-shadow:var(--shadow);
}
.demo-visual img{
  width:100%;
  height:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:0;
  opacity:.92;
}
.demo-visual .visual-cap{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:22px 22px 18px;
  background:linear-gradient(180deg,transparent,rgba(4,10,22,.92));
  font-size:13.5px;
  color:#c3d9f7;
}

/* metrics */
.metric-row{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
}
.metric{
  padding:24px 20px;
  border-radius:var(--radius);
  text-align:center;
  background:linear-gradient(160deg,rgba(61,139,255,.16),rgba(34,211,238,.05));
  border:1px solid rgba(120,180,255,.22);
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,border-color .2s ease;
}
.metric:hover{transform:translateY(-3px);border-color:var(--border-lit);}
.metric-num{
  font-size:30px;
  font-weight:800;
  letter-spacing:.5px;
  background:linear-gradient(120deg,#ffffff,#7fd4ff);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.metric-label{margin-top:6px;font-size:13.5px;color:#9fb6d8;}
.metric-note{margin-top:4px;font-size:12px;color:var(--muted-2);}

/* result cards */
.res-card{padding:0;overflow:hidden;}
.res-card img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:0;
  opacity:.9;
  transition:transform .35s ease,opacity .35s ease;
}
.res-card:hover img{transform:scale(1.04);opacity:1;}
.res-body{padding:22px 22px 24px;}

/* QA */
.qa-list{display:flex;flex-direction:column;gap:16px;}
.qa-item{
  padding:22px 24px;
  border-radius:var(--radius);
  background:rgba(255,255,255,.042);
  border:1px solid var(--border);
  border-left:3px solid rgba(61,139,255,.55);
  transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.qa-item:hover{transform:translateY(-2px);border-color:var(--border-lit);border-left-color:var(--brand-2);background:rgba(61,139,255,.08);}
.qa-q{font-size:16px;font-weight:700;color:#fff;display:flex;gap:10px;align-items:flex-start;}
.qa-q .q-mark{
  flex:none;
  font-size:12px;
  font-weight:800;
  color:#04101f;
  background:linear-gradient(135deg,#7fd4ff,#22d3ee);
  border-radius:6px;
  padding:2px 7px;
  margin-top:3px;
}
.qa-a{margin-top:9px;font-size:14.5px;line-height:1.8;color:var(--muted);}

/* timeline */
.timeline{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
  position:relative;
}
.tl-item{
  padding:24px 20px;
  border-radius:var(--radius);
  background:rgba(255,255,255,.04);
  border:1px solid var(--border);
  transition:transform .2s ease,border-color .2s ease;
}
.tl-item:hover{transform:translateY(-4px);border-color:var(--border-lit);}
.tl-step{
  display:inline-block;
  font-size:12.5px;
  letter-spacing:1px;
  color:#8fd6ff;
  border-radius:999px;
  padding:4px 12px;
  background:rgba(61,139,255,.14);
  border:1px solid rgba(61,139,255,.3);
  margin-bottom:14px;
}
.tl-item h3{font-size:16px;font-weight:700;color:#fff;}
.tl-item p{margin-top:8px;font-size:14px;line-height:1.75;color:var(--muted);}

/* category matrix */
.cat-card{
  display:block;
  padding:0;
  overflow:hidden;
  border-radius:var(--radius);
  border:1px solid var(--border);
  background:linear-gradient(165deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
  box-shadow:var(--shadow-sm);
  height:100%;
}
.cat-card:hover{
  transform:translateY(-4px);
  border-color:var(--border-lit);
  box-shadow:0 22px 46px rgba(2,8,23,.6);
}
.cat-card img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:0;
  opacity:.88;
}
.cat-body{padding:22px;}
.cat-body h3{font-size:18px;font-weight:700;color:#fff;letter-spacing:.3px;}
.cat-body p{margin-top:9px;font-size:14px;line-height:1.75;color:var(--muted);}
.cat-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:16px;
  font-size:14px;
  font-weight:600;
  color:#7fd4ff;
}
.cat-card:hover .cat-link{color:#22d3ee;}

/* scenes */
.scene{
  padding:24px;
  border-radius:var(--radius);
  background:rgba(255,255,255,.04);
  border:1px solid var(--border);
  transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.scene:hover{transform:translateY(-3px);border-color:var(--border-lit);background:rgba(61,139,255,.08);}
.scene h3{font-size:16px;font-weight:700;color:#fff;display:flex;align-items:center;gap:9px;}
.scene h3 svg{width:18px;height:18px;stroke:#7fd4ff;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none;}
.scene p{margin-top:9px;font-size:14px;line-height:1.75;color:var(--muted);}

/* spec table */
.spec-wrap{
  display:grid;
  grid-template-columns:.95fr 1.05fr;
  gap:40px;
  align-items:start;
}
.spec-list{
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--border);
  background:rgba(255,255,255,.035);
}
.spec-row{
  display:flex;
  justify-content:space-between;
  gap:18px;
  padding:15px 20px;
  font-size:14.5px;
  border-bottom:1px solid rgba(255,255,255,.06);
  transition:background .2s ease;
}
.spec-row:last-child{border-bottom:0;}
.spec-row:hover{background:rgba(61,139,255,.09);}
.spec-key{color:var(--muted);}
.spec-val{color:#dbeaff;font-weight:600;text-align:right;}

/* CMS updates */
.updates-grid{
  display:grid;
  grid-template-columns:1.45fr .85fr;
  gap:32px;
  align-items:start;
}
.post-list{display:flex;flex-direction:column;gap:14px;}
.post-item{
  padding:22px 24px;
  border-radius:var(--radius);
  background:rgba(255,255,255,.042);
  border:1px solid var(--border);
  transition:border-color .2s ease,transform .2s ease,background .2s ease;
}
.post-item:hover{transform:translateY(-3px);border-color:var(--border-lit);background:rgba(61,139,255,.08);}
.post-title{
  display:block;
  font-size:16.5px;
  font-weight:700;
  color:#fff;
  line-height:1.55;
  transition:color .2s ease;
}
.post-item:hover .post-title{color:#8fd6ff;}
.post-text{
  margin-top:8px;
  font-size:14px;
  line-height:1.75;
  color:var(--muted);
}
.post-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px;
  margin-top:14px;
  font-size:12.5px;
  color:var(--muted-2);
}
.post-tag{
  padding:4px 11px;
  border-radius:999px;
  color:#9fd0ff;
  background:rgba(61,139,255,.13);
  border:1px solid rgba(61,139,255,.28);
}
.post-empty{
  padding:24px;
  border-radius:var(--radius);
  border:1px dashed rgba(255,255,255,.16);
  color:var(--muted);
  font-size:14.5px;
  text-align:center;
}
.side-col{display:flex;flex-direction:column;gap:14px;}
.side-card{
  padding:20px;
  border-radius:var(--radius);
  background:linear-gradient(165deg,rgba(61,139,255,.14),rgba(255,255,255,.02));
  border:1px solid rgba(120,180,255,.22);
  transition:border-color .2s ease,transform .2s ease;
}
.side-card:hover{transform:translateY(-3px);border-color:var(--border-lit);}
.side-card .side-title{
  display:block;
  font-size:15px;
  font-weight:700;
  color:#fff;
  line-height:1.55;
}
.side-card .side-meta{margin-top:9px;font-size:12.5px;color:var(--muted-2);}

/* voices */
.quote{
  padding:26px 24px;
  border-radius:var(--radius);
  background:rgba(255,255,255,.045);
  border:1px solid var(--border);
  transition:transform .2s ease,border-color .2s ease;
}
.quote:hover{transform:translateY(-3px);border-color:var(--border-lit);}
.quote-text{font-size:14.5px;line-height:1.82;color:#cfdcf3;}
.quote-user{
  display:flex;
  align-items:center;
  gap:11px;
  margin-top:18px;
  padding-top:16px;
  border-top:1px solid rgba(255,255,255,.08);
}
.avatar{
  width:36px;height:36px;
  display:grid;place-items:center;
  border-radius:50%;
  font-size:14px;
  font-weight:700;
  color:#04101f;
  background:linear-gradient(135deg,#7fd4ff,#22d3ee);
  flex:none;
}
.quote-name{font-size:14px;color:#fff;font-weight:600;}
.quote-role{font-size:12.5px;color:var(--muted-2);}

/* final CTA */
.final-cta{
  position:relative;
  padding:46px 44px;
  border-radius:var(--radius-lg);
  overflow:hidden;
  background:
    radial-gradient(560px 300px at 84% 0%,rgba(34,211,238,.22),transparent 70%),
    linear-gradient(140deg,rgba(28,56,102,.92),rgba(9,20,42,.95));
  border:1px solid rgba(120,180,255,.28);
  box-shadow:0 26px 66px rgba(2,8,23,.6);
}
.final-cta h2{
  font-size:28px;
  font-weight:800;
  color:#fff;
  line-height:1.4;
  max-width:680px;
}
.final-cta p{
  margin-top:14px;
  font-size:15px;
  line-height:1.85;
  color:#b3c8e8;
  max-width:660px;
}
.final-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}

/* notice */
.notice{
  display:flex;
  gap:14px;
  padding:20px 24px;
  border-radius:var(--radius);
  background:rgba(255,255,255,.035);
  border:1px solid var(--border);
  border-left:3px solid rgba(34,211,238,.6);
  font-size:13.5px;
  line-height:1.8;
  color:var(--muted);
}
.notice svg{width:20px;height:20px;stroke:#7fd4ff;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none;margin-top:2px;}

/* footer */
.site-footer{
  margin-top:0;
  padding:58px 0 26px;
  background:linear-gradient(180deg,rgba(6,13,29,.4),rgba(4,9,20,.96));
  border-top:1px solid rgba(255,255,255,.08);
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.1fr;
  gap:36px;
  padding-bottom:36px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:800;
  color:#fff;
}
.footer-about{
  margin-top:14px;
  font-size:14px;
  line-height:1.8;
  color:var(--muted);
  max-width:320px;
}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:#e4eeff;
  letter-spacing:.6px;
  margin-bottom:14px;
}
.footer-col a{
  display:block;
  font-size:14px;
  color:var(--muted);
  padding:6px 0;
  transition:color .2s ease,transform .2s ease;
}
.footer-col a:hover{color:#8fd6ff;transform:translateX(3px);}
.footer-col p{font-size:13.5px;line-height:1.8;color:var(--muted);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  align-items:center;
  gap:14px;
  padding-top:22px;
  font-size:13px;
  color:var(--muted-2);
}
.footer-bottom a{color:#8fb6e2;}
.footer-bottom a:hover{color:#22d3ee;}

/* responsive */
@media (max-width:1080px){
  .hero h1{font-size:36px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-lead{max-width:none;}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .metric-row{grid-template-columns:repeat(2,1fr);}
  .timeline{grid-template-columns:repeat(2,1fr);}
  .demo-grid{grid-template-columns:1fr;gap:30px;}
  .spec-wrap{grid-template-columns:1fr;gap:28px;}
  .updates-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .nav-main{display:none;}
  .search-box{display:none;}
  .nav-toggle{display:inline-flex;}
}
@media (max-width:820px){
  .grid-3{grid-template-columns:1fr 1fr;}
  .section{padding:60px 0;}
  .section-title{font-size:25px;}
  .hero{padding:56px 0 64px;}
  .hero h1{font-size:31px;}
  .hero-stats{gap:22px;}
  .final-cta{padding:34px 26px;}
  .final-cta h2{font-size:23px;}
}
@media (max-width:620px){
  .container{padding:0 16px;}
  .header-inner{height:62px;gap:12px;}
  .brand{font-size:17px;}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .metric-row{grid-template-columns:1fr 1fr;}
  .timeline{grid-template-columns:1fr;}
  .hero h1{font-size:26px;line-height:1.32;}
  .hero-sub{font-size:15px;}
  .hero-lead{font-size:14.5px;}
  .hero-actions .btn{flex:1 1 100%;}
  .section-title{font-size:22px;}
  .section{padding:48px 0;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .lead-card{padding:22px 18px;}
  .btn{min-height:44px;}
  .qa-item{padding:18px;}
  .post-item{padding:18px;}
}

/* roulang page: article */
:root{
 --bg:#050a16;
 --bg-soft:#081227;
 --bg-soft2:#0a1730;
 --panel:rgba(16,30,56,.72);
 --glass:rgba(255,255,255,.045);
 --glass-strong:rgba(255,255,255,.075);
 --border:rgba(255,255,255,.09);
 --border-lit:rgba(120,180,255,.38);
 --text:#e9eefb;
 --muted:#94a4c6;
 --muted-2:#7b8aa9;
 --brand:#3d8bff;
 --brand-2:#22d3ee;
 --glow:rgba(61,139,255,.45);
 --radius:14px;
 --radius-sm:10px;
 --radius-lg:20px;
 --shadow:0 18px 44px rgba(2,8,23,.55);
 --shadow-sm:0 8px 22px rgba(2,8,23,.4);
 --container:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
 margin:0;
 background:var(--bg);
 color:var(--text);
 font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
 font-size:16px;
 line-height:1.75;
 -webkit-font-smoothing:antialiased;
 overflow-x:hidden;
}
body::before{
 content:"";
 position:fixed;
 inset:0;
 background:
 radial-gradient(900px 520px at 82% -8%, rgba(34,211,238,.16), transparent 65%),
 radial-gradient(760px 480px at 8% 4%, rgba(61,139,255,.20), transparent 62%),
 radial-gradient(700px 500px at 50% 108%, rgba(61,139,255,.10), transparent 70%);
 pointer-events:none;
 z-index:0;
}
img{max-width:100%;display:block;border-radius:var(--radius);}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
 outline:2px solid var(--brand-2);
 outline-offset:3px;
 border-radius:8px;
}
.container{
 width:100%;
 max-width:var(--container);
 margin:0 auto;
 padding:0 24px;
 position:relative;
 z-index:1;
}
/* ============ HEADER ============ */
.site-header{
 position:sticky;
 top:0;
 z-index:60;
 background:rgba(6,12,26,.82);
 backdrop-filter:blur(18px);
 -webkit-backdrop-filter:blur(18px);
 border-bottom:1px solid rgba(255,255,255,.07);
 box-shadow:0 10px 30px rgba(2,7,20,.45);
}
.header-inner{
 height:66px;
 display:flex;
 align-items:center;
 gap:22px;
}
.brand{
 display:inline-flex;
 align-items:center;
 gap:10px;
 font-weight:800;
 font-size:19px;
 letter-spacing:.5px;
 white-space:nowrap;
 color:#fff;
}
.brand-mark{
 width:34px;height:34px;
 display:grid;place-items:center;
 border-radius:10px;
 background:linear-gradient(135deg,rgba(61,139,255,.9),rgba(34,211,238,.85));
 box-shadow:0 0 20px rgba(61,139,255,.55);
 flex:none;
}
.brand-mark svg{width:19px;height:19px;stroke:#04101f;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;}
.nav-main{
 display:flex;
 align-items:center;
 gap:6px;
 margin-left:8px;
}
.nav-link{
 position:relative;
 padding:9px 14px;
 font-size:15px;
 color:var(--muted);
 border-radius:9px;
 transition:color .2s ease,background .2s ease;
 white-space:nowrap;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.06);}
.nav-link.is-active{
 color:#fff;
 background:rgba(61,139,255,.16);
 box-shadow:inset 0 0 0 1px rgba(61,139,255,.4);
}
.header-right{
 margin-left:auto;
 display:flex;
 align-items:center;
 gap:12px;
}
.search-box{
 display:flex;
 align-items:center;
 gap:8px;
 padding:8px 12px;
 border-radius:999px;
 border:1px solid var(--border);
 background:rgba(255,255,255,.04);
 transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box:focus-within{
 border-color:var(--border-lit);
 box-shadow:0 0 0 3px rgba(61,139,255,.18);
}
.search-box svg{width:15px;height:15px;stroke:var(--muted);fill:none;stroke-width:1.9;stroke-linecap:round;flex:none;}
.search-box input{
 width:140px;
 border:0;
 background:transparent;
 font-size:14px;
 color:var(--text);
 outline:none;
}
.search-box input::placeholder{color:var(--muted-2);}
.btn{
 display:inline-flex;
 align-items:center;
 justify-content:center;
 gap:8px;
 padding:11px 20px;
 font-size:15px;
 font-weight:600;
 border-radius:9px;
 border:1px solid transparent;
 cursor:pointer;
 transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
 white-space:nowrap;
 min-height:42px;
}
.btn-primary{
 background:linear-gradient(135deg,#3d8bff,#22d3ee);
 color:#04101f;
 box-shadow:0 0 0 1px rgba(120,190,255,.4),0 10px 26px rgba(61,139,255,.4);
}
.btn-primary:hover{
 transform:translateY(-2px);
 box-shadow:0 0 0 1px rgba(150,215,255,.6),0 16px 34px rgba(61,139,255,.55);
}
.btn-ghost{
 background:rgba(255,255,255,.04);
 border-color:var(--border);
 color:var(--text);
}
.btn-ghost:hover{
 border-color:var(--border-lit);
 background:rgba(61,139,255,.12);
 transform:translateY(-2px);
}
.btn-sm{padding:9px 16px;font-size:14px;min-height:38px;}
.nav-cta{box-shadow:0 0 0 1px rgba(120,190,255,.35),0 0 22px rgba(61,139,255,.5);}
.nav-toggle{
 display:none;
 width:42px;height:42px;
 border-radius:10px;
 border:1px solid var(--border);
 background:rgba(255,255,255,.05);
 cursor:pointer;
 align-items:center;
 justify-content:center;
}
.nav-toggle svg{width:20px;height:20px;stroke:#fff;fill:none;stroke-width:2;stroke-linecap:round;}
.mobile-nav{
 display:none;
 padding:10px 0 18px;
 border-top:1px solid rgba(255,255,255,.07);
}
.mobile-nav.is-open{display:block;}
.mobile-nav a{
 display:block;
 padding:12px 6px;
 font-size:15px;
 color:var(--muted);
 border-bottom:1px solid rgba(255,255,255,.05);
}
.mobile-nav a.is-active{color:#fff;}
.mobile-nav .btn{width:100%;margin-top:14px;}
/* ============ ARTICLE HERO ============ */
.article-hero{
 position:relative;
 padding:62px 0 54px;
 overflow:hidden;
 border-bottom:1px solid rgba(255,255,255,.07);
}
.article-hero-bg{
 position:absolute;
 inset:0;
 background-image:url('/assets/images/d63c48f1b18c3df2.webp');
 background-size:cover;
 background-position:center;
 opacity:.32;
}
.article-hero-bg::after{
 content:"";
 position:absolute;
 inset:0;
 background:
 linear-gradient(180deg,rgba(5,10,22,.82) 0%,rgba(5,10,22,.94) 72%,rgba(5,10,22,.99) 100%),
 radial-gradient(760px 420px at 84% 6%,rgba(34,211,238,.16),transparent 68%);
}
.article-hero-inner{position:relative;z-index:1;max-width:900px;}
.hero-tag{
 display:inline-flex;
 align-items:center;
 gap:8px;
 padding:6px 15px;
 border-radius:999px;
 font-size:13px;
 letter-spacing:.6px;
 color:#bfe0ff;
 background:rgba(61,139,255,.14);
 border:1px solid rgba(61,139,255,.36);
 box-shadow:0 0 22px rgba(61,139,255,.22);
}
.hero-tag .dot{
 width:6px;height:6px;border-radius:50%;
 background:var(--brand-2);
 box-shadow:0 0 10px var(--brand-2);
}
.article-title{
 font-size:clamp(25px,3.4vw,41px);
 line-height:1.3;
 letter-spacing:-.4px;
 font-weight:800;
 margin:16px 0 14px;
 color:#fff;
}
.article-dek{
 margin:0 0 22px;
 color:var(--muted);
 font-size:16px;
 line-height:1.8;
 max-width:800px;
}
.article-meta{
 display:flex;
 flex-wrap:wrap;
 align-items:center;
 gap:10px;
 font-size:13.5px;
 color:var(--muted-2);
}
.article-meta .sep{color:rgba(255,255,255,.22);}
.meta-badge{
 display:inline-flex;
 align-items:center;
 gap:6px;
 padding:5px 12px;
 border-radius:999px;
 border:1px solid var(--border);
 background:rgba(255,255,255,.05);
 color:#c4d3ee;
 font-size:13px;
}
/* ============ ARTICLE BODY ============ */
.article-main{padding:54px 0 68px;}
.article-wrap{max-width:880px;margin:0 auto;}
.article-card{
 background:var(--panel);
 border:1px solid var(--border);
 border-radius:var(--radius-lg);
 padding:38px 40px;
 box-shadow:var(--shadow);
 backdrop-filter:blur(16px);
 -webkit-backdrop-filter:blur(16px);
}
.article-body{font-size:16px;line-height:1.85;color:#d3ddf2;}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 18px;}
.article-body h2{
 font-size:23px;
 line-height:1.45;
 margin:34px 0 14px;
 padding-left:14px;
 border-left:3px solid var(--brand);
 color:#fff;
 font-weight:700;
}
.article-body h3{
 font-size:18px;
 margin:26px 0 10px;
 color:#fff;
 font-weight:700;
}
.article-body h4{
 font-size:16px;
 margin:20px 0 8px;
 color:#dce8ff;
 font-weight:700;
}
.article-body strong{color:#fff;font-weight:700;}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px;}
.article-body li{margin-bottom:8px;}
.article-body li::marker{color:var(--brand-2);}
.article-body a{color:#7cb8ff;border-bottom:1px solid rgba(124,184,255,.38);}
.article-body a:hover{color:#b8dcff;}
.article-body img{
 border-radius:12px;
 margin:20px 0;
 border:1px solid var(--border);
}
.article-body blockquote{
 margin:22px 0;
 padding:14px 20px;
 border-left:3px solid var(--brand-2);
 background:rgba(34,211,238,.07);
 border-radius:0 12px 12px 0;
 color:#cfe3ff;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body table{
 width:100%;
 border-collapse:collapse;
 margin:20px 0;
 font-size:14.5px;
}
.article-body th,.article-body td{
 border:1px solid var(--border);
 padding:10px 12px;
 text-align:left;
}
.article-body th{background:rgba(255,255,255,.05);color:#fff;font-weight:600;}
.article-body hr{border:0;border-top:1px solid var(--border);margin:28px 0;}
.article-body > table{display:block;overflow-x:auto;white-space:nowrap;}
.article-empty{text-align:center;padding:26px 0 8px;}
.article-empty h2{font-size:22px;margin:0 0 12px;color:#fff;}
.article-empty p{color:var(--muted);margin:0 0 22px;}
/* ============ SECTION ============ */
.section{padding:64px 0;position:relative;z-index:1;}
.section.alt{
 background:linear-gradient(180deg,rgba(8,18,39,.78),rgba(5,10,22,.28));
 border-top:1px solid rgba(255,255,255,.06);
 border-bottom:1px solid rgba(255,255,255,.06);
}
.section-head{max-width:760px;margin-bottom:30px;}
.section-head .kicker{
 display:inline-flex;
 align-items:center;
 gap:8px;
 font-size:13px;
 letter-spacing:1.2px;
 color:#8fc4ff;
 text-transform:uppercase;
}
.section-head .kicker::before{
 content:"";
 width:22px;height:2px;border-radius:2px;
 background:linear-gradient(90deg,var(--brand),var(--brand-2));
 box-shadow:0 0 10px rgba(61,139,255,.7);
}
.section-head h2{
 font-size:clamp(22px,2.5vw,30px);
 line-height:1.4;
 margin:12px 0 10px;
 font-weight:800;
 color:#fff;
}
.section-head p{margin:0;color:var(--muted);font-size:15px;}
.card-grid{display:grid;gap:18px;}
.cols-3{grid-template-columns:repeat(3,minmax(0,1fr));}
.cols-2{grid-template-columns:repeat(2,minmax(0,1fr));}
.g-card{
 background:var(--panel);
 border:1px solid var(--border);
 border-radius:var(--radius);
 padding:22px 22px 20px;
 box-shadow:var(--shadow-sm);
 backdrop-filter:blur(12px);
 -webkit-backdrop-filter:blur(12px);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.g-card:hover{
 transform:translateY(-4px);
 box-shadow:var(--shadow);
 border-color:var(--border-lit);
}
.g-card .icon-chip{
 width:38px;height:38px;
 display:grid;place-items:center;
 border-radius:11px;
 background:rgba(61,139,255,.16);
 border:1px solid rgba(61,139,255,.34);
 margin-bottom:14px;
}
.g-card .icon-chip svg{width:19px;height:19px;stroke:#8fc4ff;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;}
.g-card h3{
 font-size:17px;
 margin:0 0 8px;
 color:#fff;
 font-weight:700;
}
.g-card p{margin:0;font-size:14.5px;color:var(--muted);line-height:1.78;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.tag{
 display:inline-flex;
 align-items:center;
 padding:4px 11px;
 border-radius:999px;
 font-size:12.5px;
 color:#a9c8f0;
 background:rgba(61,139,255,.1);
 border:1px solid rgba(61,139,255,.26);
}
/* ============ TIMELINE ============ */
.timeline{
 display:grid;
 gap:0;
 border:1px solid var(--border);
 border-radius:var(--radius);
 overflow:hidden;
 background:rgba(10,23,48,.6);
}
.timeline-item{
 display:grid;
 grid-template-columns:64px 1fr;
 gap:18px;
 padding:20px 22px;
 border-bottom:1px solid rgba(255,255,255,.06);
 transition:background .2s ease;
}
.timeline-item:last-child{border-bottom:0;}
.timeline-item:hover{background:rgba(61,139,255,.07);}
.timeline-item .step-no{
 width:44px;height:44px;
 display:grid;place-items:center;
 border-radius:12px;
 font-weight:800;
 font-size:15px;
 color:#c9e4ff;
 background:rgba(61,139,255,.14);
 border:1px solid rgba(61,139,255,.32);
}
.timeline-item h4{margin:0 0 6px;font-size:16px;color:#fff;}
.timeline-item p{margin:0;font-size:14.5px;color:var(--muted);}
/* ============ LIST BLOCK ============ */
.detail-list{display:grid;gap:12px;}
.detail-item{
 display:grid;
 grid-template-columns:26px 1fr;
 gap:14px;
 padding:16px 18px;
 border-radius:var(--radius-sm);
 border:1px solid var(--border);
 background:rgba(255,255,255,.035);
 transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.detail-item:hover{border-color:var(--border-lit);background:rgba(61,139,255,.08);transform:translateX(3px);}
.detail-item .bullet{
 width:22px;height:22px;
 display:grid;place-items:center;
 border-radius:7px;
 background:rgba(34,211,238,.14);
 border:1px solid rgba(34,211,238,.32);
 margin-top:2px;
}
.detail-item .bullet svg{width:12px;height:12px;stroke:#6ee7f5;fill:none;stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round;}
.detail-item strong{display:block;color:#fff;font-size:15px;margin-bottom:4px;}
.detail-item span{color:var(--muted);font-size:14px;line-height:1.75;}
/* ============ RELATED RAIL ============ */
.rail{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
.rail-card{
 display:block;
 background:var(--panel);
 border:1px solid var(--border);
 border-radius:var(--radius);
 overflow:hidden;
 box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rail-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--border-lit);}
.rail-card .thumb{
 aspect-ratio:16/9;
 overflow:hidden;
 position:relative;
}
.rail-card .thumb img{
 width:100%;height:100%;
 object-fit:cover;
 border-radius:0;
 transition:transform .35s ease;
}
.rail-card:hover .thumb img{transform:scale(1.05);}
.rail-body{padding:16px 18px 18px;}
.rail-body h3{font-size:15.5px;margin:0 0 8px;color:#fff;line-height:1.5;}
.rail-body p{margin:0;font-size:13.5px;color:var(--muted);line-height:1.7;}
/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:880px;}
.faq-item{
 border:1px solid var(--border);
 border-radius:var(--radius);
 background:rgba(255,255,255,.035);
 overflow:hidden;
 transition:border-color .2s ease,background .2s ease;
}
.faq-item[open]{border-color:var(--border-lit);background:rgba(61,139,255,.08);}
.faq-item summary{
 cursor:pointer;
 list-style:none;
 padding:17px 22px;
 font-size:15.5px;
 font-weight:600;
 color:#e6eeff;
 display:flex;
 align-items:center;
 justify-content:space-between;
 gap:14px;
 min-height:44px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
 content:"+";
 font-size:20px;
 line-height:1;
 color:#7cb8ff;
transition:transform .2s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item .faq-answer{
 padding:0 22px 18px;
 font-size:14.5px;
 color:var(--muted);
 line-height:1.8;
}
/* ============ CTA ============ */
.cta-band{
 position:relative;
 z-index:1;
 margin:0 auto;
 max-width:var(--container);
}
.cta-inner{
 position:relative;
 overflow:hidden;
 border-radius:var(--radius-lg);
 border:1px solid rgba(120,180,255,.28);
 background:
 linear-gradient(120deg,rgba(61,139,255,.2),rgba(34,211,238,.1) 62%,rgba(10,23,48,.6)),
 var(--bg-soft2);
 padding:44px 40px;
 display:flex;
 align-items:center;
 justify-content:space-between;
 gap:28px;
 box-shadow:0 24px 60px rgba(2,8,23,.6);
}
.cta-inner h2{font-size:clamp(21px,2.4vw,28px);margin:0 0 10px;color:#fff;font-weight:800;}
.cta-inner p{margin:0;color:#a9bcdd;font-size:15px;max-width:640px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:none;}
/* ============ FOOTER ============ */
.site-footer{
 border-top:1px solid rgba(255,255,255,.09);
 background:rgba(5,10,22,.92);
 padding:52px 0 0;
 position:relative;
 z-index:1;
}
.footer-grid{
 display:grid;
 grid-template-columns:1.5fr 1fr 1fr 1fr;
 gap:32px;
 padding-bottom:36px;
}
.footer-brand{
 display:inline-flex;
 align-items:center;
 gap:10px;
 font-weight:800;
 font-size:18px;
 color:#fff;
 margin-bottom:12px;
}
.footer-about{
 color:var(--muted);
 font-size:14px;
 line-height:1.8;
 margin:0;
 max-width:330px;
}
.footer-col h4{
 font-size:14px;
 letter-spacing:.5px;
 color:#fff;
 margin:0 0 14px;
 font-weight:700;
}
.footer-col a{
 display:block;
 color:var(--muted);
 font-size:14px;
 padding:5px 0;
 transition:color .2s ease,transform .2s ease;
}
.footer-col a:hover{color:var(--brand-2);transform:translateX(2px);}
.footer-col p{color:var(--muted-2);font-size:13.5px;margin:0;line-height:1.8;}
.footer-bottom{
 display:flex;
 justify-content:space-between;
 gap:12px;
 flex-wrap:wrap;
 padding:18px 0;
 border-top:1px solid rgba(255,255,255,.07);
 color:var(--muted-2);
 font-size:13px;
}
/* ============ RESPONSIVE ============ */
@media (max-width:1024px){
 .nav-main{gap:2px;}
 .nav-link{padding:8px 10px;font-size:14px;}
 .search-box input{width:110px;}
 .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:26px;}
 .article-card{padding:30px 26px;}
}
@media (max-width:860px){
 .nav-main,.search-box{display:none;}
 .nav-toggle{display:flex;}
 .header-right{gap:10px;}
 .article-hero{padding:48px 0 42px;}
 .cols-3,.cols-2,.rail{grid-template-columns:1fr;}
 .cta-inner{flex-direction:column;align-items:flex-start;padding:32px 24px;}
 .cta-actions{width:100%;}
 .cta-actions .btn{flex:1;}
 .footer-grid{grid-template-columns:1fr 1fr;gap:24px;}
 .timeline-item{grid-template-columns:48px 1fr;padding:16px 16px;}
}
@media (max-width:520px){
 .container{padding:0 16px;}
 .header-inner{height:60px;gap:12px;}
 .brand{font-size:16.5px;}
 .brand-mark{width:30px;height:30px;}
 .header-right .nav-cta{padding:8px 13px;font-size:13.5px;min-height:36px;}
 .article-card{padding:22px 18px;}
 .article-body h2{font-size:20px;}
 .section{padding:44px 0;}
 .g-card{padding:18px;}
 .footer-grid{grid-template-columns:1fr;}
 .footer-bottom{flex-direction:column;font-size:12.5px;}
 .cta-actions .btn{width:100%;flex:none;}
 .meta-badge{font-size:12px;}
}

/* roulang page: category1 */
:root{
  --bg:#050a16;
  --bg-soft:#081227;
  --bg-soft2:#0a1730;
  --panel:rgba(16,30,56,.72);
  --glass:rgba(255,255,255,.045);
  --glass-strong:rgba(255,255,255,.075);
  --border:rgba(255,255,255,.09);
  --border-lit:rgba(120,180,255,.38);
  --text:#e9eefb;
  --muted:#94a4c6;
  --muted-2:#7b8aa9;
  --brand:#3d8bff;
  --brand-2:#22d3ee;
  --glow:rgba(61,139,255,.45);
  --radius:14px;
  --radius-sm:10px;
  --radius-lg:20px;
  --shadow:0 18px 44px rgba(2,8,23,.55);
  --shadow-sm:0 8px 22px rgba(2,8,23,.4);
  --container:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 520px at 82% -8%, rgba(34,211,238,.16), transparent 65%),
    radial-gradient(760px 480px at 8% 4%, rgba(61,139,255,.20), transparent 62%),
    radial-gradient(700px 500px at 50% 108%, rgba(61,139,255,.10), transparent 70%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;border-radius:var(--radius);}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--brand-2);
  outline-offset:3px;
  border-radius:8px;
}
p{margin:0 0 14px;}
h1,h2,h3,h4{margin:0;line-height:1.32;letter-spacing:.2px;}
ul{margin:0;padding:0;list-style:none;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}

/* ============ HEADER ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(6,12,26,.82);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(255,255,255,.07);
  box-shadow:0 10px 30px rgba(2,7,20,.45);
}
.header-inner{
  height:66px;
  display:flex;
  align-items:center;
  gap:22px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  font-size:19px;
  letter-spacing:.5px;
  white-space:nowrap;
  color:#fff;
}
.brand-mark{
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:10px;
  background:linear-gradient(135deg,rgba(61,139,255,.9),rgba(34,211,238,.85));
  box-shadow:0 0 20px rgba(61,139,255,.55);
  flex:none;
}
.brand-mark svg{width:19px;height:19px;stroke:#04101f;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;}
.nav-main{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:8px;
}
.nav-link{
  position:relative;
  padding:9px 14px;
  font-size:15px;
  color:var(--muted);
  border-radius:9px;
  transition:color .2s ease,background .2s ease;
  white-space:nowrap;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.06);}
.nav-link.is-active{
  color:#fff;
  background:rgba(61,139,255,.16);
  box-shadow:inset 0 0 0 1px rgba(61,139,255,.4);
}
.header-right{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.search-box{
  display:flex;
  align-items:center;
  gap:8px;
  padding:8px 12px;
  border-radius:999px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.04);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box:focus-within{
  border-color:var(--border-lit);
  box-shadow:0 0 0 3px rgba(61,139,255,.18);
}
.search-box svg{width:15px;height:15px;stroke:var(--muted);fill:none;stroke-width:1.9;stroke-linecap:round;flex:none;}
.search-box input{
  width:140px;
  border:0;
  background:transparent;
  font-size:14px;
  color:var(--text);
  outline:none;
}
.search-box input::placeholder{color:var(--muted-2);}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 20px;
  font-size:15px;
  font-weight:600;
  border-radius:9px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
  white-space:nowrap;
  min-height:42px;
}
.btn-primary{
  background:linear-gradient(135deg,#3d8bff,#22d3ee);
  color:#04101f;
  box-shadow:0 0 0 1px rgba(120,190,255,.4),0 10px 26px rgba(61,139,255,.4);
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(150,215,255,.6),0 16px 34px rgba(61,139,255,.55);
}
.btn-ghost{
  background:rgba(255,255,255,.04);
  border-color:var(--border);
  color:var(--text);
}
.btn-ghost:hover{
  border-color:var(--border-lit);
  background:rgba(61,139,255,.12);
  transform:translateY(-2px);
}
.btn-sm{padding:9px 16px;font-size:14px;min-height:38px;}
.nav-cta{box-shadow:0 0 0 1px rgba(120,190,255,.35),0 0 22px rgba(61,139,255,.5);}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:10px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.05);
  cursor:pointer;
  align-items:center;
  justify-content:center;
  transition:background .2s ease,border-color .2s ease;
}
.nav-toggle:hover{background:rgba(61,139,255,.16);border-color:var(--border-lit);}
.nav-toggle svg{width:20px;height:20px;stroke:#fff;fill:none;stroke-width:2;stroke-linecap:round;}
.mobile-nav{
  display:none;
  padding:10px 0 18px;
  border-top:1px solid rgba(255,255,255,.07);
}
.mobile-nav.is-open{display:block;}
.mobile-nav a{
  display:block;
  padding:12px 6px;
  font-size:15px;
  color:var(--muted);
  border-bottom:1px solid rgba(255,255,255,.05);
  transition:color .2s ease;
}
.mobile-nav a:hover,.mobile-nav a.is-active{color:#fff;}
.mobile-nav .btn{width:100%;margin-top:14px;}

/* ============ HERO ============ */
.hero{
  position:relative;
  padding:70px 0 82px;
  overflow:hidden;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.hero-bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/d63c48f1b18c3df2.webp');
  background-size:cover;
  background-position:center;
  opacity:.32;
  filter:saturate(1.05);
}
.hero-bg::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(100deg,rgba(5,10,22,.96) 6%,rgba(5,10,22,.84) 48%,rgba(8,18,39,.66) 100%),
    radial-gradient(700px 400px at 88% 12%,rgba(34,211,238,.18),transparent 68%);
}
.hero-grid{
  display:grid;
  grid-template-columns:1.12fr .88fr;
  gap:52px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:7px 16px;
  border-radius:999px;
  font-size:13px;
  letter-spacing:.6px;
  color:#bfe0ff;
  background:rgba(61,139,255,.14);
  border:1px solid rgba(61,139,255,.36);
  box-shadow:0 0 22px rgba(61,139,255,.22);
  margin-bottom:22px;
}
.eyebrow .dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--brand-2);
  box-shadow:0 0 10px var(--brand-2);
}
.hero h1{
  font-size:40px;
  font-weight:800;
  line-height:1.26;
  letter-spacing:.4px;
  margin-bottom:18px;
}
.hero h1 .hl{
  background:linear-gradient(120deg,#7fb8ff,#22d3ee);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-sub{
  font-size:16px;
  color:var(--muted);
  max-width:560px;
  line-height:1.85;
  margin-bottom:24px;
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;}
.tag{
  display:inline-flex;
  align-items:center;
  padding:6px 14px;
  font-size:13px;
  color:#a8c8ee;
  border-radius:999px;
  border:1px solid rgba(120,180,255,.24);
  background:rgba(61,139,255,.1);
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.tag:hover{border-color:rgba(120,180,255,.55);color:#dcecff;background:rgba(61,139,255,.18);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* hero panel */
.hero-panel{
  position:relative;
  padding:26px 24px;
  border-radius:var(--radius-lg);
  background:linear-gradient(160deg,rgba(24,44,80,.82),rgba(10,22,44,.78));
  border:1px solid rgba(120,180,255,.22);
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
}
.hero-panel::before{
  content:"";
  position:absolute;
  inset:-1px;
  border-radius:var(--radius-lg);
  padding:1px;
  background:linear-gradient(150deg,rgba(61,139,255,.55),rgba(34,211,238,.16),transparent 62%);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;
  mask-composite:exclude;
  pointer-events:none;
}
.ring-wrap{
  display:flex;
  align-items:center;
  gap:20px;
  padding-bottom:20px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.ring{width:122px;height:122px;transform:rotate(-90deg);flex:none;}
.ring-track{fill:none;stroke:rgba(255,255,255,.09);stroke-width:10;}
.ring-bar{
  fill:none;
  stroke-width:10;
  stroke-linecap:round;
  stroke-dasharray:326.7;
  stroke-dashoffset:71.9;
  filter:drop-shadow(0 0 9px rgba(61,139,255,.8));
}
.ring-center{position:absolute;width:122px;height:122px;display:grid;place-content:center;text-align:center;}
.ring-box{position:relative;display:grid;place-items:center;}
.ring-box .ring-center strong{display:block;font-size:26px;font-weight:800;color:#fff;line-height:1.1;}
.ring-box .ring-center span{display:block;font-size:12px;color:var(--muted);letter-spacing:.5px;}
.panel-head h3{font-size:17px;font-weight:700;margin-bottom:6px;}
.panel-head p{font-size:13px;color:var(--muted-2);margin:0;}
.tier-list{margin:18px 0 20px;display:grid;gap:10px;}
.tier{
  display:flex;
  align-items:center;
  gap:12px;
  padding:11px 14px;
  border-radius:var(--radius-sm);
  background:rgba(255,255,255,.045);
  border:1px solid rgba(255,255,255,.07);
  transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.tier:hover{border-color:var(--border-lit);background:rgba(61,139,255,.12);transform:translateX(3px);}
.tier-badge{
  width:30px;height:30px;flex:none;
  display:grid;place-items:center;
  border-radius:8px;
  font-size:12px;font-weight:700;
  color:#9fd8ff;
  background:rgba(61,139,255,.16);
  border:1px solid rgba(61,139,255,.32);
}
.tier-body{flex:1;min-width:0;}
.tier-body strong{display:block;font-size:14px;font-weight:600;color:#e6eefc;}
.tier-body span{display:block;font-size:12px;color:var(--muted-2);}
.tier-state{font-size:12px;color:#7ee0f2;white-space:nowrap;}
.tier-state.pending{color:var(--muted-2);}
.hero-panel .btn{width:100%;}

/* ============ SECTION ============ */
.section{
  padding:74px 0;
  position:relative;
  z-index:1;
}
.section.alt{
  background:linear-gradient(180deg,rgba(10,23,48,.78),rgba(7,15,32,.42));
  border-top:1px solid rgba(255,255,255,.06);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.section-head{max-width:720px;margin-bottom:38px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:1.2px;
  color:#8fc0ff;
  margin-bottom:12px;
  text-transform:uppercase;
}
.sec-kicker::before{
  content:"";
  width:22px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,#3d8bff,#22d3ee);
  box-shadow:0 0 10px rgba(61,139,255,.8);
}
.section-head.center .sec-kicker{justify-content:center;}
.sec-title{font-size:30px;font-weight:800;letter-spacing:.3px;margin-bottom:14px;}
.sec-desc{font-size:15px;color:var(--muted);line-height:1.85;margin:0;}

/* stats */
.stat-band{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
}
.stat-item{
  padding:22px 20px;
  border-radius:var(--radius);
  background:var(--panel);
  border:1px solid var(--border);
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.stat-item:hover{transform:translateY(-4px);border-color:var(--border-lit);box-shadow:var(--shadow);}
.stat-num{
  font-size:30px;
  font-weight:800;
  line-height:1.1;
  background:linear-gradient(120deg,#9fd0ff,#22d3ee);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  margin-bottom:8px;
}
.stat-label{font-size:14px;color:#cfdcf2;font-weight:600;margin-bottom:4px;}
.stat-note{font-size:12.5px;color:var(--muted-2);line-height:1.6;}

/* module cards */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.module-card{
  display:flex;
  flex-direction:column;
  padding:22px 20px 20px;
  border-radius:var(--radius);
  background:var(--panel);
  border:1px solid var(--border);
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.module-card:hover{
  transform:translateY(-4px);
  border-color:var(--border-lit);
  box-shadow:0 22px 44px rgba(2,8,23,.6),0 0 0 1px rgba(120,180,255,.22);
  background:linear-gradient(165deg,rgba(26,48,86,.82),rgba(12,25,48,.8));
}
.card-icon{
  width:42px;height:42px;
  display:grid;place-items:center;
  border-radius:11px;
  background:rgba(61,139,255,.15);
  border:1px solid rgba(61,139,255,.3);
  margin-bottom:16px;
}
.card-icon svg{width:20px;height:20px;stroke:#8fc6ff;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.card-title{font-size:17px;font-weight:700;margin-bottom:10px;}
.card-text{font-size:14px;color:var(--muted);line-height:1.8;margin-bottom:16px;}
.card-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;}
.chip{
  font-size:12px;
  padding:4px 10px;
  border-radius:999px;
  color:#a9c9ee;
  background:rgba(61,139,255,.1);
  border:1px solid rgba(120,180,255,.2);
}

/* betting map */
.map-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.map-card{
  padding:24px 22px;
  border-radius:var(--radius);
  background:linear-gradient(165deg,rgba(20,38,70,.86),rgba(10,21,42,.82));
  border:1px solid rgba(255,255,255,.09);
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.map-card:hover{transform:translateY(-4px);border-color:var(--border-lit);box-shadow:var(--shadow);}
.map-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.map-name{font-size:17px;font-weight:700;}
.map-rate{
  font-size:15px;
  font-weight:700;
  color:#7ee0f2;
  padding:4px 12px;
  border-radius:999px;
  background:rgba(34,211,238,.1);
  border:1px solid rgba(34,211,238,.3);
}
.map-card p{font-size:14px;color:var(--muted);line-height:1.8;margin-bottom:14px;}
.map-list{display:grid;gap:8px;}
.map-list li{
  display:flex;
  gap:9px;
  font-size:13.5px;
  color:#b9c9e4;
  line-height:1.7;
}
.map-list li::before{
  content:"";
  width:5px;height:5px;
  margin-top:9px;
  flex:none;
  border-radius:50%;
  background:var(--brand-2);
  box-shadow:0 0 8px rgba(34,211,238,.8);
}
.note-strip{
  margin-top:22px;
  display:flex;
  align-items:flex-start;
  gap:14px;
  padding:18px 22px;
  border-radius:var(--radius);
  background:rgba(61,139,255,.09);
  border:1px solid rgba(61,139,255,.26);
}
.note-strip svg{width:20px;height:20px;flex:none;stroke:#8fc6ff;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;margin-top:2px;}
.note-strip p{margin:0;font-size:14px;color:#c4d6ef;line-height:1.8;}

/* flow timeline */
.flow-list{position:relative;display:grid;gap:16px;padding-left:0;}
.flow-item{
  display:grid;
  grid-template-columns:56px 1fr;
  gap:18px;
  align-items:start;
  padding:20px 22px;
  border-radius:var(--radius);
  background:var(--panel);
  border:1px solid var(--border);
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.flow-item:hover{transform:translateX(4px);border-color:var(--border-lit);box-shadow:var(--shadow);}
.flow-num{
  width:44px;height:44px;
  display:grid;place-items:center;
  border-radius:12px;
  font-weight:800;
  font-size:16px;
  color:#04101f;
  background:linear-gradient(135deg,#3d8bff,#22d3ee);
  box-shadow:0 0 20px rgba(61,139,255,.5);
}
.flow-body h3{font-size:16.5px;font-weight:700;margin-bottom:8px;}
.flow-body p{font-size:14px;color:var(--muted);line-height:1.8;margin:0;}

/* compare */
.compare-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.compare-card{
  padding:24px 22px;
  border-radius:var(--radius);
  background:var(--panel);
  border:1px solid var(--border);
  box-shadow:var(--shadow-sm);
}
.compare-card.bad{border-color:rgba(255,140,140,.24);background:linear-gradient(170deg,rgba(58,26,38,.6),rgba(14,20,36,.82));}
.compare-card.good{border-color:rgba(61,139,255,.32);background:linear-gradient(170deg,rgba(18,40,74,.8),rgba(11,23,45,.84));}
.compare-card h3{
  font-size:16px;
  font-weight:700;
  display:flex;
  align-items:center;
  gap:9px;
  margin-bottom:16px;
}
.compare-card h3 svg{width:18px;height:18px;flex:none;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;}
.compare-card.bad h3 svg{stroke:#ff9d9d;}
.compare-card.good h3 svg{stroke:#7ee0f2;}
.compare-list{display:grid;gap:12px;}
.compare-list li{
  font-size:14px;
  color:#c3d2e8;
  line-height:1.8;
  padding-left:16px;
  position:relative;
}
.compare-list li::before{
  content:"";
  position:absolute;
  left:0;top:9px;
  width:6px;height:6px;
  border-radius:50%;
}
.compare-card.bad .compare-list li::before{background:rgba(255,140,140,.8);}
.compare-card.good .compare-list li::before{background:rgba(34,211,238,.85);}
.compare-list li strong{color:#fff;font-weight:700;}

/* scene cards */
.scene-card{
  border-radius:var(--radius);
  overflow:hidden;
  background:var(--panel);
  border:1px solid var(--border);
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
  display:flex;
  flex-direction:column;
}
.scene-card:hover{transform:translateY(-4px);border-color:var(--border-lit);box-shadow:var(--shadow);}
.scene-media{position:relative;aspect-ratio:16/9;overflow:hidden;}
.scene-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .3s ease;filter:saturate(1.05) brightness(.86);}
.scene-card:hover .scene-media img{transform:scale(1.04);}
.scene-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,10,22,.05),rgba(5,10,22,.72));
}
.scene-body{padding:20px 20px 22px;}
.scene-body h3{font-size:16.5px;font-weight:700;margin-bottom:10px;}
.scene-body p{font-size:14px;color:var(--muted);line-height:1.8;margin:0;}

/* FAQ */
.faq-list{display:grid;gap:14px;max-width:900px;}
.faq-item{
  border-radius:var(--radius);
  background:var(--panel);
  border:1px solid var(--border);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:var(--border-lit);box-shadow:var(--shadow);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:18px 22px;
  font-size:15.5px;
  font-weight:600;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:#bfe0ff;}
.faq-item summary .plus{
  width:22px;height:22px;flex:none;
  position:relative;
  border-radius:6px;
  border:1px solid rgba(120,180,255,.3);
  background:rgba(61,139,255,.12);
}
.faq-item summary .plus::before,
.faq-item summary .plus::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  background:#8fc6ff;
  transform:translate(-50%,-50%);
  transition:opacity .2s ease,transform .2s ease;
  border-radius:1px;
}
.faq-item summary .plus::before{width:10px;height:1.6px;}
.faq-item summary .plus::after{width:1.6px;height:10px;}
.faq-item[open] summary .plus::after{opacity:0;transform:translate(-50%,-50%) rotate(90deg);}
.faq-answer{padding:0 22px 20px;font-size:14.5px;color:var(--muted);line-height:1.85;}
.faq-answer p:last-child{margin-bottom:0;}

/* CTA band */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-lg);
  padding:52px 44px;
  border:1px solid rgba(120,180,255,.24);
  background:linear-gradient(120deg,rgba(16,34,64,.92),rgba(9,20,40,.9));
  box-shadow:var(--shadow);
}
.cta-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/dcabf8b5eb1693aa.webp');
  background-size:cover;
  background-position:center;
  opacity:.22;
}
.cta-band::after{
  content:"";
  position:absolute;inset:0;
  background:radial-gradient(520px 300px at 82% 0%,rgba(34,211,238,.22),transparent 66%);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{font-size:26px;font-weight:800;margin-bottom:10px;}
.cta-inner p{margin:0;font-size:15px;color:var(--muted);max-width:560px;line-height:1.8;}

/* ============ FOOTER ============ */
.site-footer{
  position:relative;
  z-index:1;
  margin-top:0;
  padding:56px 0 26px;
  border-top:1px solid rgba(255,255,255,.08);
  background:linear-gradient(180deg,rgba(7,14,29,.6),rgba(4,9,18,.96));
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:36px;
  padding-bottom:34px;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  font-size:17px;
  color:#fff;
  margin-bottom:14px;
}
.footer-about{font-size:13.5px;color:var(--muted-2);line-height:1.85;margin:0;max-width:340px;}
.footer-col h4{font-size:14px;font-weight:700;color:#dbe7fb;margin-bottom:14px;letter-spacing:.4px;}
.footer-col a{
  display:block;
  font-size:13.5px;
  color:var(--muted-2);
  padding:5px 0;
  transition:color .2s ease,transform .2s ease;
}
.footer-col a:hover{color:#8fc6ff;transform:translateX(3px);}
.footer-col p{font-size:13.5px;color:var(--muted-2);line-height:1.85;margin:0;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.07);
  font-size:13px;
  color:var(--muted-2);
}

/* ============ RESPONSIVE ============ */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero h1{font-size:34px;}
  .nav-main,.search-box{display:none;}
  .nav-toggle{display:inline-flex;}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .stat-band{grid-template-columns:repeat(2,1fr);}
  .map-grid{grid-template-columns:1fr;gap:16px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px;}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .hero{padding:52px 0 60px;}
  .hero h1{font-size:29px;}
  .sec-title{font-size:24px;}
  .grid-3,.grid-2,.compare-grid{grid-template-columns:1fr;}
  .cta-band{padding:36px 26px;}
  .cta-inner h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .footer-brand{margin-bottom:10px;}
  .flow-item{grid-template-columns:44px 1fr;gap:14px;padding:18px;}
  .flow-num{width:38px;height:38px;font-size:14px;border-radius:10px;}
}
@media (max-width:520px){
  .brand{font-size:17px;}
  .brand-mark{width:30px;height:30px;}
  .header-right{gap:8px;}
  .nav-cta{padding:8px 12px;font-size:13px;min-height:36px;}
  .hero h1{font-size:25px;}
  .hero-sub{font-size:15px;}
  .stat-band{grid-template-columns:1fr;}
  .grid-4{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .ring-wrap{flex-direction:column;align-items:flex-start;gap:14px;}
  .btn{width:100%;}
  .hero-actions{flex-direction:column;}
  .hero-panel .btn{width:100%;}
  .compare-card,.map-card,.module-card{padding:20px 18px;}
}

/* roulang page: category2 */
:root{
  --bg:#050a16;
  --bg-soft:#081227;
  --bg-soft2:#0a1730;
  --panel:rgba(16,30,56,.72);
  --glass:rgba(255,255,255,.045);
  --glass-strong:rgba(255,255,255,.075);
  --border:rgba(255,255,255,.09);
  --border-lit:rgba(120,180,255,.38);
  --text:#e9eefb;
  --muted:#94a4c6;
  --muted-2:#7b8aa9;
  --brand:#3d8bff;
  --brand-2:#22d3ee;
  --glow:rgba(61,139,255,.45);
  --radius:14px;
  --radius-sm:10px;
  --radius-lg:20px;
  --shadow:0 18px 44px rgba(2,8,23,.55);
  --shadow-sm:0 8px 22px rgba(2,8,23,.4);
  --container:1180px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.78;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background:
    radial-gradient(900px 520px at 82% -8%, rgba(34,211,238,.16), transparent 65%),
    radial-gradient(760px 480px at 8% 4%, rgba(61,139,255,.20), transparent 62%),
    radial-gradient(700px 500px at 50% 108%, rgba(61,139,255,.10), transparent 70%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;border-radius:var(--radius);}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--brand-2);
  outline-offset:3px;
  border-radius:8px;
}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}
/* ============ HEADER ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(6,12,26,.82);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(255,255,255,.07);
  box-shadow:0 10px 30px rgba(2,7,20,.45);
}
.header-inner{
  height:66px;
  display:flex;
  align-items:center;
  gap:22px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  font-size:19px;
  letter-spacing:.5px;
  white-space:nowrap;
  color:#fff;
}
.brand-mark{
  width:34px;height:34px;
  display:grid;place-items:center;
  border-radius:10px;
  background:linear-gradient(135deg,rgba(61,139,255,.9),rgba(34,211,238,.85));
  box-shadow:0 0 20px rgba(61,139,255,.55);
  flex:none;
}
.brand-mark svg{width:19px;height:19px;stroke:#04101f;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;}
.nav-main{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:8px;
}
.nav-link{
  position:relative;
  padding:9px 14px;
  font-size:15px;
  color:var(--muted);
  border-radius:9px;
  transition:color .2s ease,background .2s ease;
  white-space:nowrap;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.06);}
.nav-link.is-active{
  color:#fff;
  background:rgba(61,139,255,.16);
  box-shadow:inset 0 0 0 1px rgba(61,139,255,.4);
}
.header-right{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.search-box{
  display:flex;
  align-items:center;
  gap:8px;
  padding:8px 12px;
  border-radius:999px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.04);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box:focus-within{
  border-color:var(--border-lit);
  box-shadow:0 0 0 3px rgba(61,139,255,.18);
}
.search-box svg{width:15px;height:15px;stroke:var(--muted);fill:none;stroke-width:1.9;stroke-linecap:round;flex:none;}
.search-box input{
  width:140px;
  border:0;
  background:transparent;
  font-size:14px;
  color:var(--text);
  outline:none;
}
.search-box input::placeholder{color:var(--muted-2);}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 20px;
  font-size:15px;
  font-weight:600;
  border-radius:9px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
  white-space:nowrap;
  min-height:42px;
}
.btn-primary{
  background:linear-gradient(135deg,#3d8bff,#22d3ee);
  color:#04101f;
  box-shadow:0 0 0 1px rgba(120,190,255,.4),0 10px 26px rgba(61,139,255,.4);
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(150,215,255,.6),0 16px 34px rgba(61,139,255,.55);
}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:rgba(255,255,255,.04);
  border-color:var(--border);
  color:var(--text);
}
.btn-ghost:hover{
  border-color:var(--border-lit);
  background:rgba(61,139,255,.12);
  transform:translateY(-2px);
}
.btn-sm{padding:9px 16px;font-size:14px;min-height:38px;}
.nav-cta{box-shadow:0 0 0 1px rgba(120,190,255,.35),0 0 22px rgba(61,139,255,.5);}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:10px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.05);
  cursor:pointer;
  align-items:center;
  justify-content:center;
}
.nav-toggle svg{width:20px;height:20px;stroke:#fff;fill:none;stroke-width:2;stroke-linecap:round;}
.mobile-nav{
  display:none;
  padding:10px 0 18px;
  border-top:1px solid rgba(255,255,255,.07);
}
.mobile-nav.is-open{display:block;}
.mobile-nav a{
  display:block;
  padding:12px 6px;
  font-size:15px;
  color:var(--muted);
  border-bottom:1px solid rgba(255,255,255,.05);
}
.mobile-nav a.is-active{color:#fff;}
.mobile-nav .btn{width:100%;margin-top:14px;}
/* ============ HERO ============ */
.cat-hero{
  position:relative;
  padding:66px 0 76px;
  overflow:hidden;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.cat-hero-bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/d63c48f1b18c3df2.webp');
  background-size:cover;
  background-position:center;
  opacity:.30;
}
.cat-hero-bg::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(100deg,rgba(5,10,22,.97) 8%,rgba(5,10,22,.85) 46%,rgba(8,18,39,.66) 100%),
    radial-gradient(680px 400px at 88% 10%,rgba(34,211,238,.18),transparent 68%);
}
.cat-hero-grid{
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:46px;
  align-items:start;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:7px 16px;
  border-radius:999px;
  font-size:13px;
  letter-spacing:.6px;
  color:#bfe0ff;
  background:rgba(61,139,255,.14);
  border:1px solid rgba(61,139,255,.36);
  box-shadow:0 0 22px rgba(61,139,255,.22);
}
.eyebrow .dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--brand-2);
  box-shadow:0 0 12px var(--brand-2);
}
.cat-hero h1{
  font-size:40px;
  line-height:1.28;
  font-weight:800;
  letter-spacing:.4px;
  margin:20px 0 16px;
  color:#fff;
}
.cat-hero h1 em{
  font-style:normal;
  background:linear-gradient(120deg,#7fc4ff,#22d3ee);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-lead{
  font-size:16px;
  color:var(--muted);
  line-height:1.85;
  margin:0 0 22px;
  max-width:620px;
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px;}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 14px;
  font-size:13px;
  border-radius:999px;
  color:#c8dcff;
  background:rgba(255,255,255,.05);
  border:1px solid var(--border);
}
.tag:hover{border-color:var(--border-lit);color:#fff;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;}
/* hero side panel */
.hero-panel{
  background:linear-gradient(165deg,rgba(20,38,70,.86),rgba(10,20,40,.78));
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:24px;
  box-shadow:var(--shadow);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
}
.panel-head{
  display:flex;
  align-items:center;
  gap:14px;
  padding-bottom:16px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.panel-head img{
  width:74px;height:96px;
  object-fit:cover;
  border-radius:10px;
  border:1px solid var(--border);
  flex:none;
}
.panel-title{font-size:17px;font-weight:700;color:#fff;margin:0 0 6px;}
.panel-sub{font-size:13px;color:var(--muted-2);margin:0;}
.toc{list-style:none;margin:14px 0 0;padding:0;}
.toc li{
  display:flex;
  gap:10px;
  align-items:baseline;
  padding:9px 0;
  font-size:14px;
  color:var(--muted);
  border-bottom:1px dashed rgba(255,255,255,.08);
}
.toc li:last-child{border-bottom:0;}
.toc b{
  font-size:12px;
  color:var(--brand-2);
  font-weight:700;
  letter-spacing:1px;
  flex:none;
}
.lead-form{display:flex;gap:8px;margin-top:16px;}
.lead-form input{
  flex:1;
  min-width:0;
  min-height:42px;
  padding:0 12px;
  font-size:14px;
  border-radius:9px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.05);
  color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.lead-form input::placeholder{color:var(--muted-2);}
.lead-form input:focus{
  border-color:var(--border-lit);
  box-shadow:0 0 0 3px rgba(61,139,255,.16);
  outline:none;
}
.form-note{font-size:12.5px;color:var(--muted-2);margin:10px 0 0;line-height:1.6;}
.form-tip{
  display:none;
  margin:10px 0 0;
  font-size:13px;
  color:#8fe3ff;
  padding:9px 12px;
  border-radius:9px;
  background:rgba(34,211,238,.1);
  border:1px solid rgba(34,211,238,.32);
}
.form-tip.is-on{display:block;}
/* ============ SECTIONS ============ */
.section{
  padding:68px 0;
  position:relative;
}
.section-alt{
  background:linear-gradient(180deg,rgba(8,18,39,.85),rgba(5,10,22,.2));
  border-top:1px solid rgba(255,255,255,.05);
  border-bottom:1px solid rgba(255,255,255,.05);
}
.section-head{
  max-width:760px;
  margin-bottom:34px;
}
.section-head .kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:1.2px;
  color:#8fc4ff;
  margin-bottom:10px;
}
.section-head .kicker::before{
  content:"";
  width:22px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
  box-shadow:0 0 10px rgba(61,139,255,.7);
}
.section-head h2{
  font-size:29px;
  line-height:1.35;
  font-weight:800;
  color:#fff;
  margin:0 0 12px;
}
.section-head p{
  margin:0;
  color:var(--muted);
  font-size:15.5px;
}
/* stat strip */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
}
.stat{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:22px 20px;
  box-shadow:var(--shadow-sm);
  backdrop-filter:blur(12px);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.stat:hover{transform:translateY(-3px);border-color:var(--border-lit);box-shadow:0 18px 40px rgba(2,8,23,.6);}
.stat b{
  display:block;
  font-size:26px;
  font-weight:800;
  color:#fff;
  letter-spacing:.5px;
}
.stat b span{font-size:14px;color:var(--brand-2);margin-left:4px;font-weight:600;}
.stat p{margin:6px 0 0;font-size:13.5px;color:var(--muted-2);line-height:1.65;}
/* cards */
.card{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:24px;
  box-shadow:var(--shadow-sm);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
  height:100%;
}
.card:hover{
  transform:translateY(-4px);
  border-color:var(--border-lit);
  box-shadow:0 22px 48px rgba(2,8,23,.62);
}
.card-icon{
  width:42px;height:42px;
  display:grid;place-items:center;
  border-radius:11px;
  background:rgba(61,139,255,.14);
  border:1px solid rgba(61,139,255,.32);
  margin-bottom:16px;
}
.card-icon svg{width:20px;height:20px;stroke:#8fc4ff;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.card h3{font-size:17.5px;font-weight:700;color:#fff;margin:0 0 10px;line-height:1.5;}
.card p{margin:0;font-size:14.5px;color:var(--muted);line-height:1.8;}
.card .card-foot{
  margin-top:16px;
  display:flex;flex-wrap:wrap;gap:8px;
}
.chip{
  font-size:12px;
  padding:4px 11px;
  border-radius:999px;
  color:#a9c8f5;
  background:rgba(61,139,255,.1);
  border:1px solid rgba(61,139,255,.26);
}
/* scenes */
.scene{
  display:grid;
  grid-template-columns:280px 1fr;
  gap:26px;
  align-items:center;
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:22px;
  box-shadow:var(--shadow-sm);
  backdrop-filter:blur(14px);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.scene:hover{transform:translateY(-3px);border-color:var(--border-lit);box-shadow:0 20px 44px rgba(2,8,23,.58);}
.scene img{
  width:100%;
  height:180px;
  object-fit:cover;
  border-radius:var(--radius-sm);
  border:1px solid var(--border);
}
.scene h3{margin:0 0 10px;font-size:18px;font-weight:700;color:#fff;}
.scene p{margin:0 0 12px;font-size:14.5px;color:var(--muted);line-height:1.8;}
.scene ul{margin:0;padding-left:18px;font-size:14px;color:var(--muted-2);line-height:1.85;}
.scene ul li::marker{color:var(--brand-2);}
/* flow */
.flow{
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:14px;
  counter-reset:step;
}
.flow-step{
  position:relative;
  background:linear-gradient(170deg,rgba(20,38,70,.8),rgba(9,18,36,.72));
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:22px 18px;
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.flow-step:hover{transform:translateY(-4px);border-color:var(--border-lit);box-shadow:0 18px 40px rgba(2,8,23,.6);}
.flow-step .num{
  display:inline-grid;place-items:center;
  width:30px;height:30px;
  border-radius:9px;
  font-size:13px;font-weight:800;
  color:#04101f;
  background:linear-gradient(135deg,#3d8bff,#22d3ee);
  box-shadow:0 0 16px rgba(61,139,255,.5);
  margin-bottom:14px;
}
.flow-step h4{margin:0 0 8px;font-size:15.5px;color:#fff;font-weight:700;}
.flow-step p{margin:0;font-size:13.5px;color:var(--muted-2);line-height:1.72;}
/* cases */
.case-main{
  display:grid;
  grid-template-columns:1fr 320px;
  gap:28px;
  align-items:center;
  background:linear-gradient(140deg,rgba(24,44,80,.82),rgba(9,18,36,.78));
  border:1px solid var(--border-lit);
  border-radius:var(--radius-lg);
  padding:28px;
  box-shadow:var(--shadow);
}
.case-main img{
  width:100%;height:230px;object-fit:cover;
  border-radius:var(--radius);
  border:1px solid var(--border);
}
.case-main h3{margin:0 0 12px;font-size:20px;color:#fff;font-weight:800;line-height:1.45;}
.case-main p{margin:0 0 14px;font-size:14.5px;color:var(--muted);line-height:1.82;}
.case-list{display:grid;gap:14px;margin-top:18px;}
.case-item{
  display:flex;
  gap:14px;
  align-items:flex-start;
  padding:16px 18px;
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--border);
  transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.case-item:hover{border-color:var(--border-lit);background:rgba(61,139,255,.09);transform:translateX(3px);}
.case-item .mark{
  flex:none;
  width:26px;height:26px;border-radius:8px;
  display:grid;place-items:center;
  background:rgba(34,211,238,.14);
  border:1px solid rgba(34,211,238,.34);
  font-size:12px;font-weight:800;color:#7ee8fb;
}
.case-item h4{margin:0 0 4px;font-size:15px;color:#fff;font-weight:700;}
.case-item p{margin:0;font-size:13.8px;color:var(--muted-2);line-height:1.7;}
/* faq */
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:4px 20px;
  box-shadow:var(--shadow-sm);
  transition:border-color .2s ease,box-shadow .2s ease;
  backdrop-filter:blur(12px);
}
.faq-item:hover{border-color:var(--border-lit);box-shadow:0 16px 36px rgba(2,8,23,.55);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:16px 34px 16px 0;
  position:relative;
  font-size:16px;
  font-weight:600;
  color:#fff;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  position:absolute;
  right:0;top:50%;
  transform:translateY(-50%);
  width:26px;height:26px;
  display:grid;place-items:center;
  border-radius:8px;
  font-size:16px;
  color:#8fc4ff;
  background:rgba(61,139,255,.12);
  border:1px solid rgba(61,139,255,.28);
  transition:transform .2s ease,background .2s ease;
}
.faq-item[open] summary::after{content:"−";background:rgba(34,211,238,.16);}
.faq-item p{
  margin:0 0 18px;
  font-size:14.5px;
  color:var(--muted);
  line-height:1.82;
  padding-right:16px;
}
/* news */
.news-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:18px;
}
.news-card{
  display:flex;
  flex-direction:column;
  gap:10px;
  padding:22px;
  border-radius:var(--radius);
  background:var(--panel);
  border:1px solid var(--border);
  box-shadow:var(--shadow-sm);
  backdrop-filter:blur(12px);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.news-card:hover{transform:translateY(-4px);border-color:var(--border-lit);box-shadow:0 20px 44px rgba(2,8,23,.6);}
.news-card .meta{display:flex;gap:10px;flex-wrap:wrap;font-size:12.5px;color:var(--muted-2);}
.news-card .meta span{
  padding:3px 10px;
  border-radius:999px;
  background:rgba(61,139,255,.1);
  border:1px solid rgba(61,139,255,.24);
  color:#a9c8f5;
}
.news-card h3{margin:0;font-size:16px;line-height:1.55;color:#fff;font-weight:700;}
.news-card p{margin:0;font-size:14px;color:var(--muted);line-height:1.75;}
.news-empty{
  padding:26px;
  border-radius:var(--radius);
  border:1px dashed rgba(255,255,255,.16);
  color:var(--muted-2);
  font-size:14.5px;
  text-align:center;
  background:rgba(255,255,255,.02);
}
/* channel cards */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.channel{
  display:block;
  padding:24px;
  border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(20,38,70,.8),rgba(9,18,36,.7));
  border:1px solid var(--border);
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.channel:hover{transform:translateY(-4px);border-color:var(--border-lit);box-shadow:0 20px 44px rgba(2,8,23,.6);}
.channel h3{margin:0 0 8px;font-size:17px;color:#fff;font-weight:700;}
.channel p{margin:0 0 14px;font-size:14px;color:var(--muted);line-height:1.75;}
.channel .arrow{font-size:13.5px;color:#8fc4ff;font-weight:600;}
/* cta band */
.cta-band{
  margin-top:8px;
  padding:38px 34px;
  border-radius:var(--radius-lg);
  background:
    radial-gradient(620px 300px at 88% 0%,rgba(34,211,238,.20),transparent 70%),
    linear-gradient(120deg,rgba(61,139,255,.20),rgba(10,24,48,.85));
  border:1px solid var(--border-lit);
  box-shadow:0 0 0 1px rgba(61,139,255,.16),0 26px 60px rgba(2,8,23,.6);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:22px;
}
.cta-band h2{margin:0 0 8px;font-size:24px;color:#fff;font-weight:800;line-height:1.4;}
.cta-band p{margin:0;font-size:14.5px;color:var(--muted);max-width:620px;line-height:1.8;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
/* ============ FOOTER ============ */
.site-footer{
  margin-top:20px;
  padding:54px 0 26px;
  border-top:1px solid rgba(255,255,255,.08);
  background:linear-gradient(180deg,rgba(6,12,26,.55),rgba(4,8,18,.92));
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:34px;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:800;
  color:#fff;
  margin-bottom:14px;
}
.footer-about{
  margin:0;
  font-size:14px;
  color:var(--muted-2);
  line-height:1.8;
  max-width:360px;
}
.footer-col h4{
  font-size:14px;
  color:#fff;
  margin:0 0 14px;
  font-weight:700;
  letter-spacing:.5px;
}
.footer-col a{
  display:block;
  font-size:14px;
  color:var(--muted-2);
  padding:5px 0;
  transition:color .2s ease,transform .2s ease;
}
.footer-col a:hover{color:#8fc4ff;transform:translateX(3px);}
.footer-col p{margin:0;font-size:13.5px;color:var(--muted-2);line-height:1.75;}
.footer-bottom{
  margin-top:36px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.07);
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:10px;
  font-size:13px;
  color:var(--muted-2);
}
/* ============ RESPONSIVE ============ */
@media (max-width:1024px){
  .nav-main{display:none;}
  .search-box{display:none;}
  .nav-toggle{display:flex;}
  .cat-hero-grid{grid-template-columns:1fr;gap:34px;}
  .cat-hero h1{font-size:34px;}
  .flow{grid-template-columns:repeat(2,1fr);}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .channel-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .case-main{grid-template-columns:1fr;}
  .case-main img{height:210px;}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  .section{padding:50px 0;}
  .cat-hero{padding:46px 0 56px;}
  .cat-hero h1{font-size:29px;}
  .hero-lead{font-size:15px;}
  .stat-strip{grid-template-columns:repeat(2,1fr);}
  .scene{grid-template-columns:1fr;padding:18px;}
  .scene img{height:170px;}
  .section-head h2{font-size:24px;}
  .flow{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .channel-grid{grid-template-columns:1fr;}
  .cta-band{padding:28px 22px;}
  .cta-band h2{font-size:21px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:520px){
  .brand{font-size:17px;}
  .cat-hero h1{font-size:25px;}
  .stat-strip{grid-template-columns:1fr;}
  .lead-form{flex-direction:column;}
  .lead-form input{min-height:44px;}
  .lead-form .btn{width:100%;}
  .hero-actions .btn{width:100%;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .panel-head{flex-direction:column;align-items:flex-start;}
  .panel-head img{width:100%;height:150px;}
}

/* roulang page: category3 */
:root{
 --bg:#050a16;
 --bg-soft:#081227;
 --bg-soft2:#0a1730;
 --panel:rgba(16,30,56,.72);
 --glass:rgba(255,255,255,.045);
 --glass-strong:rgba(255,255,255,.075);
 --border:rgba(255,255,255,.09);
 --border-lit:rgba(120,180,255,.38);
 --text:#e9eefb;
 --muted:#94a4c6;
 --muted-2:#7b8aa9;
 --brand:#3d8bff;
 --brand-2:#22d3ee;
 --glow:rgba(61,139,255,.45);
 --radius:14px;
 --radius-sm:10px;
 --radius-lg:20px;
 --shadow:0 18px 44px rgba(2,8,23,.55);
 --shadow-sm:0 8px 22px rgba(2,8,23,.4);
 --container:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
html body{
 margin:0;
 background:var(--bg);
 color:var(--text);
 font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
 font-size:16px;
 line-height:1.75;
 -webkit-font-smoothing:antialiased;
 overflow-x:hidden;
}
body::before{
 content:"";
 position:fixed;
 inset:0;
 background:
 radial-gradient(900px 520px at 82% -8%, rgba(34,211,238,.16), transparent 65%),
 radial-gradient(760px 480px at 8% 4%, rgba(61,139,255,.20), transparent 62%),
 radial-gradient(700px 500px at 50% 108%, rgba(61,139,255,.10), transparent 70%);
 pointer-events:none;
 z-index:0;
}
img{max-width:100%;display:block;border-radius:var(--radius);}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
 outline:2px solid var(--brand-2);
 outline-offset:3px;
 border-radius:8px;
}
.container{
 width:100%;
 max-width:var(--container);
 margin:0 auto;
 padding:0 24px;
 position:relative;
 z-index:1;
}
/* ===== HEADER ===== */
.site-header{
 position:sticky;
 top:0;
 z-index:60;
 background:rgba(6,12,26,.82);
 backdrop-filter:blur(18px);
 -webkit-backdrop-filter:blur(18px);
 border-bottom:1px solid rgba(255,255,255,.07);
 box-shadow:0 10px 30px rgba(2,7,20,.45);
}
.header-inner{
 height:66px;
 display:flex;
 align-items:center;
 gap:22px;
}
.brand{
 display:inline-flex;
 align-items:center;
 gap:10px;
 font-weight:800;
 font-size:19px;
 letter-spacing:.5px;
 white-space:nowrap;
 color:#fff;
}
.brand-mark{
 width:34px;height:34px;
 display:grid;place-items:center;
 border-radius:10px;
 background:linear-gradient(135deg,rgba(61,139,255,.9),rgba(34,211,238,.85));
 box-shadow:0 0 20px rgba(61,139,255,.55);
 flex:none;
}
.brand-mark svg{width:19px;height:19px;stroke:#04101f;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;}
.nav-main{
 display:flex;
 align-items:center;
 gap:6px;
 margin-left:8px;
}
.nav-link{
 position:relative;
 padding:9px 14px;
 font-size:15px;
 color:var(--muted);
 border-radius:9px;
 transition:color .2s ease,background .2s ease;
 white-space:nowrap;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.06);}
.nav-link.is-active{
 color:#fff;
 background:rgba(61,139,255,.16);
 box-shadow:inset 0 0 0 1px rgba(61,139,255,.4);
}
.header-right{
 margin-left:auto;
 display:flex;
 align-items:center;
 gap:12px;
}
.search-box{
 display:flex;
 align-items:center;
 gap:8px;
 padding:8px 12px;
 border-radius:999px;
 border:1px solid var(--border);
 background:rgba(255,255,255,.04);
 transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box:focus-within{
 border-color:var(--border-lit);
 box-shadow:0 0 0 3px rgba(61,139,255,.18);
}
.search-box svg{width:15px;height:15px;stroke:var(--muted);fill:none;stroke-width:1.9;stroke-linecap:round;flex:none;}
.search-box input{
 width:132px;
 border:0;
 background:transparent;
 font-size:14px;
 color:var(--text);
 outline:none;
}
.search-box input::placeholder{color:var(--muted-2);}
.btn{
 display:inline-flex;
 align-items:center;
 justify-content:center;
 gap:8px;
 padding:11px 20px;
 font-size:15px;
 font-weight:600;
 border-radius:9px;
 border:1px solid transparent;
 cursor:pointer;
 transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
 white-space:nowrap;
 min-height:42px;
}
.btn-primary{
 background:linear-gradient(135deg,#3d8bff,#22d3ee);
 color:#04101f;
 box-shadow:0 0 0 1px rgba(120,190,255,.4),0 10px 26px rgba(61,139,255,.4);
}
.btn-primary:hover{
 transform:translateY(-2px);
 box-shadow:0 0 0 1px rgba(150,215,255,.6),0 16px 34px rgba(61,139,255,.55);
}
.btn-ghost{
 background:rgba(255,255,255,.04);
 border-color:var(--border);
 color:var(--text);
}
.btn-ghost:hover{
 border-color:var(--border-lit);
 background:rgba(61,139,255,.12);
 transform:translateY(-2px);
}
.btn-sm{padding:9px 16px;font-size:14px;min-height:38px;}
.nav-cta{box-shadow:0 0 0 1px rgba(120,190,255,.35),0 0 22px rgba(61,139,255,.5);}
.nav-toggle{
 display:none;
 width:42px;height:42px;
 border-radius:10px;
 border:1px solid var(--border);
 background:rgba(255,255,255,.05);
 cursor:pointer;
 align-items:center;
 justify-content:center;
}
.nav-toggle svg{width:20px;height:20px;stroke:#fff;fill:none;stroke-width:2;stroke-linecap:round;}
.mobile-nav{
 display:none;
 padding:10px 0 18px;
 border-top:1px solid rgba(255,255,255,.07);
}
.mobile-nav.is-open{display:block;}
.mobile-nav a{
 display:block;
 padding:12px 6px;
 font-size:15px;
 color:var(--muted);
 border-bottom:1px solid rgba(255,255,255,.05);
}
.mobile-nav a.is-active{color:#fff;}
.mobile-nav .btn{width:100%;margin-top:14px;}
/* ===== HERO ===== */
.hero-live{
 position:relative;
 padding:64px 0 76px;
 overflow:hidden;
 border-bottom:1px solid rgba(255,255,255,.07);
}
.hero-live-bg{
 position:absolute;
 inset:0;
 background-image:url('/assets/images/d63c48f1b18c3df2.webp');
 background-size:cover;
 background-position:center;
 opacity:.3;
}
.hero-live-bg::after{
 content:"";
 position:absolute;
 inset:0;
 background:
 linear-gradient(104deg,rgba(5,10,22,.97) 8%,rgba(5,10,22,.86) 46%,rgba(8,18,39,.62) 100%),
 radial-gradient(680px 420px at 88% 8%,rgba(34,211,238,.18),transparent 68%);
}
.hero-live-grid{
 display:grid;
 grid-template-columns:1.08fr .92fr;
 gap:48px;
 align-items:center;
}
.eyebrow{
 display:inline-flex;
 align-items:center;
 gap:9px;
 padding:7px 16px;
 border-radius:999px;
 font-size:13px;
 letter-spacing:.6px;
 color:#bfe0ff;
 background:rgba(61,139,255,.14);
 border:1px solid rgba(61,139,255,.36);
 box-shadow:0 0 22px rgba(61,139,255,.22);
}
.eyebrow .dot{
 width:7px;height:7px;border-radius:50%;
 background:var(--brand-2);
 box-shadow:0 0 10px var(--brand-2);
 flex:none;
}
.hero-title{
 font-size:clamp(29px,3.5vw,43px);
 line-height:1.24;
 font-weight:800;
 letter-spacing:-.5px;
 color:#fff;
 margin:20px 0 0;
}
.hero-sub{
 margin:16px 0 0;
 font-size:16px;
 color:var(--muted);
 max-width:560px;
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.tag{
 display:inline-flex;
 align-items:center;
 padding:6px 14px;
 font-size:13px;
 color:#c9dcff;
 border-radius:999px;
 border:1px solid rgba(255,255,255,.12);
 background:rgba(255,255,255,.05);
 transition:border-color .2s ease,background .2s ease,color .2s ease;
}
.tag:hover{border-color:var(--border-lit);background:rgba(61,139,255,.14);color:#fff;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
/* live card */
.live-card{
 border-radius:var(--radius-lg);
 border:1px solid var(--border);
 background:linear-gradient(160deg,rgba(20,36,66,.92),rgba(9,19,38,.88));
 box-shadow:var(--shadow);
 padding:16px;
 backdrop-filter:blur(16px);
 -webkit-backdrop-filter:blur(16px);
}
.live-cover{position:relative;border-radius:14px;overflow:hidden;}
.live-cover img{width:100%;height:186px;object-fit:cover;border-radius:14px;}
.live-cover::after{
 content:"";
 position:absolute;inset:0;
 background:linear-gradient(180deg,rgba(5,10,22,.06) 30%,rgba(5,10,22,.72) 100%);
}
.live-badge{
 position:absolute;top:12px;left:12px;z-index:2;
 display:inline-flex;align-items:center;gap:7px;
 padding:5px 12px;border-radius:999px;
 font-size:12px;font-weight:600;color:#04101f;
 background:linear-gradient(135deg,#4d94ff,#22d3ee);
 box-shadow:0 0 18px rgba(61,139,255,.5);
}
.live-badge .pulse{
 width:6px;height:6px;border-radius:50%;
 background:#04101f;
 animation:pulseDot 1.6s ease-in-out infinite;
}
@keyframes pulseDot{0%,100%{opacity:.35;transform:scale(.8);}50%{opacity:1;transform:scale(1.15);}}
.live-body{padding:16px 6px 4px;}
.live-title{margin:0;font-size:18px;font-weight:700;color:#fff;}
.live-desc{margin:8px 0 0;font-size:14px;color:var(--muted);}
.countdown{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:16px;}
.cd-cell{
 background:rgba(255,255,255,.05);
 border:1px solid var(--border);
 border-radius:10px;
 padding:10px 4px;
 text-align:center;
}
.cd-num{
 display:block;
 font-size:20px;font-weight:800;color:#fff;
 font-variant-numeric:tabular-nums;
 letter-spacing:1px;
 line-height:1.3;
}
.cd-lab{display:block;font-size:11px;color:var(--muted-2);margin-top:2px;}
.subscribe{display:flex;gap:8px;margin-top:16px;}
.subscribe-input{
 flex:1;min-width:0;
 padding:10px 14px;
 border-radius:9px;
 border:1px solid var(--border);
 background:rgba(255,255,255,.05);
 color:var(--text);
 font-size:14px;
 transition:border-color .2s ease,box-shadow .2s ease;
}
.subscribe-input::placeholder{color:var(--muted-2);}
.subscribe-input:focus{border-color:var(--border-lit);box-shadow:0 0 0 3px rgba(61,139,255,.16);outline:none;}
.subscribe-note{margin:10px 0 0;font-size:12px;color:var(--muted-2);}
.subscribe-note.is-done{color:#7ee6c4;}
/* ===== SECTIONS ===== */
.section{
 position:relative;
 padding:78px 0;
 border-top:1px solid rgba(255,255,255,.06);
}
.section--soft{background:linear-gradient(180deg,rgba(8,18,39,.78),rgba(5,10,22,.12));}
.section--panel{background:rgba(8,18,39,.5);}
.section-head{
 display:grid;
 grid-template-columns:1.15fr .85fr;
 gap:32px;
 align-items:end;
 margin-bottom:40px;
}
.section-kicker{
 display:inline-flex;
 align-items:center;
 gap:8px;
 font-size:13px;
 letter-spacing:1.2px;
 color:#8fb6e2;
 text-transform:uppercase;
}
.section-kicker::before{
 content:"";
 width:22px;height:2px;border-radius:2px;
 background:linear-gradient(90deg,#3d8bff,#22d3ee);
}
.section-title{
 margin:10px 0 0;
 font-size:clamp(22px,2.4vw,30px);
 font-weight:800;
 line-height:1.35;
 color:#fff;
 letter-spacing:-.3px;
}
.section-lead{margin:0;font-size:15px;color:var(--muted);}
/* stat grid */
.stat-grid{
 display:grid;
 grid-template-columns:repeat(4,1fr);
 gap:16px;
}
.stat-card{
 padding:22px 20px;
 border-radius:var(--radius);
 border:1px solid var(--border);
 background:var(--panel);
 box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.stat-card:hover{transform:translateY(-4px);border-color:var(--border-lit);box-shadow:var(--shadow);}
.stat-num{
 font-size:30px;font-weight:800;line-height:1.1;
 background:linear-gradient(135deg,#8fc0ff,#22d3ee);
 -webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-label{margin:6px 0 0;font-size:14px;font-weight:600;color:#fff;}
.stat-desc{margin:8px 0 0;font-size:13px;color:var(--muted-2);line-height:1.7;}
.note-bar{
 margin-top:18px;
 display:flex;gap:14px;align-items:flex-start;
 padding:16px 20px;
 border-radius:var(--radius);
 border:1px solid rgba(61,139,255,.26);
 background:rgba(61,139,255,.08);
 font-size:14px;color:#cfe0ff;
}
.note-bar svg{width:20px;height:20px;flex:none;stroke:#7fb6ff;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;margin-top:2px;}
/* scenes */
.scene-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:36px;align-items:center;}
.scene-figure{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow);}
.scene-figure img{width:100%;height:340px;object-fit:cover;border-radius:0;}
.scene-figure::after{
 content:"";
 position:absolute;inset:0;
 background:linear-gradient(180deg,rgba(5,10,22,0) 40%,rgba(5,10,22,.7) 100%);
}
.scene-list{display:grid;gap:14px;}
.scene-item{
 display:flex;gap:16px;
 padding:20px 22px;
 border-radius:var(--radius);
 border:1px solid var(--border);
 background:var(--glass);
 transition:transform .2s ease,border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.scene-item:hover{
 transform:translateY(-3px);
 border-color:var(--border-lit);
 background:var(--glass-strong);
 box-shadow:var(--shadow-sm);
}
.scene-index{
 flex:none;
 width:34px;height:34px;
 display:grid;place-items:center;
 border-radius:10px;
 font-size:14px;font-weight:800;color:#04101f;
 background:linear-gradient(135deg,#6aa8ff,#22d3ee);
 box-shadow:0 0 16px rgba(61,139,255,.4);
}
.scene-item h3{margin:0;font-size:16px;font-weight:700;color:#fff;}
.scene-item p{margin:6px 0 0;font-size:14px;color:var(--muted);}
/* rule cards */
.rule-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.rule-card{
 display:flex;flex-direction:column;
 padding:24px 22px;
 border-radius:var(--radius);
 border:1px solid var(--border);
 background:linear-gradient(170deg,rgba(20,36,66,.72),rgba(9,19,38,.62));
 box-shadow:var(--shadow-sm);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rule-card:hover{transform:translateY(-4px);border-color:var(--border-lit);box-shadow:var(--shadow);}
.rule-icon{
 width:42px;height:42px;
 display:grid;place-items:center;
 border-radius:12px;
 background:rgba(61,139,255,.14);
 border:1px solid rgba(61,139,255,.32);
 margin-bottom:16px;
}
.rule-icon svg{width:21px;height:21px;stroke:#8fc0ff;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.rule-card h3{margin:0;font-size:17px;font-weight:700;color:#fff;}
.rule-card p{margin:8px 0 0;font-size:14px;color:var(--muted);flex:1;}
.badge{
 display:inline-flex;align-items:center;
 margin-top:16px;
 padding:4px 11px;
 font-size:12px;
 border-radius:999px;
 color:#a9d4ff;
 border:1px solid rgba(120,180,255,.3);
 background:rgba(61,139,255,.1);
 align-self:flex-start;
}
/* steps */
.steps{list-style:none;margin:0;padding:0;display:grid;gap:0;position:relative;}
.steps::before{
 content:"";
 position:absolute;
 left:23px;top:12px;bottom:12px;
 width:2px;
 background:linear-gradient(180deg,rgba(61,139,255,.7),rgba(34,211,238,.25));
}
.step{position:relative;display:flex;gap:22px;padding:16px 0;}
.step-num{
 flex:none;
 width:48px;height:48px;
 display:grid;place-items:center;
 border-radius:50%;
 font-size:16px;font-weight:800;
 color:#cfe4ff;
 background:rgba(10,23,48,.95);
 border:1px solid rgba(61,139,255,.45);
 box-shadow:0 0 0 4px rgba(5,10,22,.9),0 0 20px rgba(61,139,255,.28);
}
.step h3{margin:0;font-size:17px;font-weight:700;color:#fff;}
.step p{margin:6px 0 0;font-size:14px;color:var(--muted);}
/* path */
.path-list{
 list-style:none;margin:0;padding:0;
 display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
}
.path-item{
 position:relative;
 padding:24px 22px;
 border-radius:var(--radius);
 border:1px solid var(--border);
 background:var(--glass);
 transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.path-item:hover{transform:translateY(-4px);border-color:var(--border-lit);box-shadow:var(--shadow-sm);}
.path-step{
 display:inline-block;
 font-size:12px;letter-spacing:2px;
 color:#8fb6e2;
}
.path-item h3{margin:8px 0 0;font-size:17px;font-weight:700;color:#fff;}
.path-item p{margin:8px 0 0;font-size:14px;color:var(--muted);}
/* compare */
.compare{
 border-radius:var(--radius-lg);
 border:1px solid var(--border);
 background:var(--panel);
 overflow:hidden;
 box-shadow:var(--shadow-sm);
}
.compare-head{
 display:grid;grid-template-columns:1fr 1fr;gap:0;
 background:rgba(61,139,255,.1);
 border-bottom:1px solid var(--border);
}
.compare-head span{
 padding:14px 24px;
 font-size:13px;letter-spacing:1px;
 color:#a9d4ff;
}
.compare-row{
 display:grid;grid-template-columns:1fr 1fr;
 border-bottom:1px solid rgba(255,255,255,.05);
 transition:background .2s ease;
}
.compare-row:last-child{border-bottom:0;}
.compare-row:hover{background:rgba(255,255,255,.03);}
.compare-wrong,.compare-right{
 padding:16px 24px;
 font-size:14px;
 display:flex;gap:10px;align-items:flex-start;
}
.compare-wrong{color:#c0a9b6;border-right:1px solid rgba(255,255,255,.05);}
.compare-right{color:#cfe0ff;}
.compare-wrong .mark,.compare-right .mark{
 flex:none;font-weight:800;line-height:1.6;
}
.compare-wrong .mark{color:#e08aa0;}
.compare-right .mark{color:#5ed6b0;}
/* faq */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.faq-item{
 border-radius:var(--radius);
 border:1px solid var(--border);
 background:var(--glass);
 padding:4px 20px;
 transition:border-color .2s ease,background .2s ease;
}
.faq-item:hover{border-color:var(--border-lit);background:var(--glass-strong);}
.faq-item summary{
 list-style:none;
 cursor:pointer;
 padding:16px 26px 16px 0;
 position:relative;
 font-size:15px;
 font-weight:700;
 color:#fff;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
 content:"+";
 position:absolute;right:0;top:50%;
 transform:translateY(-50%);
 font-size:20px;font-weight:400;
 color:#8fb6e2;
 transition:transform .2s ease,color .2s ease;
}
.faq-item[open] summary::after{content:"–";color:#22d3ee;}
.faq-item p{
 margin:0 0 16px;
 font-size:14px;
 color:var(--muted);
 line-height:1.8;
}
/* posts */
.post-list{display:grid;gap:12px;}
.post-item{
 display:flex;
 gap:20px;
 align-items:center;
 justify-content:space-between;
 padding:18px 22px;
 border-radius:var(--radius);
 border:1px solid var(--border);
 background:var(--panel);
 transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.post-item:hover{transform:translateY(-3px);border-color:var(--border-lit);box-shadow:var(--shadow-sm);}
.post-item-title{margin:0;font-size:16px;font-weight:700;color:#fff;}
.post-item-desc{margin:6px 0 0;font-size:14px;color:var(--muted);}
.post-item-meta{
 display:flex;flex-direction:column;
 align-items:flex-end;gap:6px;flex:none;
}
.post-item-meta .badge{margin-top:0;}
.post-date{font-size:12px;color:var(--muted-2);white-space:nowrap;}
.post-empty{
 margin:0;
 padding:26px 22px;
 border-radius:var(--radius);
 border:1px dashed var(--border);
 background:rgba(255,255,255,.02);
 font-size:14px;color:var(--muted-2);
}
/* cta */
.section--cta{padding:72px 0 84px;border-top:1px solid rgba(255,255,255,.06);}
.cta-card{
 display:grid;
 grid-template-columns:1.3fr .7fr;
 gap:32px;
 align-items:center;
 padding:42px 44px;
 border-radius:var(--radius-lg);
 border:1px solid rgba(120,180,255,.26);
 background:
 radial-gradient(560px 260px at 88% 0%,rgba(34,211,238,.2),transparent 70%),
 linear-gradient(150deg,rgba(20,38,70,.92),rgba(8,18,39,.9));
 box-shadow:var(--shadow);
}
.cta-title{margin:0;font-size:clamp(22px,2.6vw,30px);font-weight:800;color:#fff;line-height:1.35;}
.cta-text{margin:12px 0 0;font-size:15px;color:var(--muted);max-width:560px;}
.cta-actions{display:flex;flex-direction:column;gap:12px;}
.cta-actions .btn{width:100%;}
/* footer */
.site-footer{
 position:relative;
 z-index:1;
 border-top:1px solid rgba(255,255,255,.08);
 background:rgba(4,9,19,.86);
 padding:56px 0 26px;
}
.footer-grid{
 display:grid;
 grid-template-columns:1.4fr 1fr 1fr 1.2fr;
 gap:36px;
}
.footer-brand{
 display:inline-flex;
 align-items:center;
 gap:10px;
 font-size:17px;
 font-weight:800;
 color:#fff;
}
.footer-brand .brand-mark{width:30px;height:30px;border-radius:9px;}
.footer-brand .brand-mark svg{width:17px;height:17px;}
.footer-about{
 margin:14px 0 0;
 font-size:14px;
 color:var(--muted-2);
 line-height:1.8;
 max-width:340px;
}
.footer-col h4{
 margin:0 0 14px;
 font-size:14px;
 font-weight:700;
 color:#fff;
 letter-spacing:.4px;
}
.footer-col a{
 display:block;
 padding:5px 0;
 font-size:14px;
 color:var(--muted-2);
 transition:color .2s ease,transform .2s ease;
}
.footer-col a:hover{color:#8fb6e2;transform:translateX(3px);}
.footer-col p{margin:0;font-size:13px;color:var(--muted-2);line-height:1.8;}
.footer-bottom{
 margin-top:38px;
 padding-top:20px;
 border-top:1px solid rgba(255,255,255,.07);
 display:flex;
 flex-wrap:wrap;
 gap:10px;
 justify-content:space-between;
 font-size:13px;
 color:var(--muted-2);
}
/* responsive */
@media (max-width:1080px){
 .nav-main{gap:2px;}
 .search-box{display:none;}
 .stat-grid,.rule-grid,.path-list{grid-template-columns:repeat(2,1fr);}
 .footer-grid{grid-template-columns:1.2fr 1fr 1fr;}
}
@media (max-width:900px){
 .nav-main{display:none;}
 .nav-toggle{display:inline-flex;}
 .hero-live-grid{grid-template-columns:1fr;gap:34px;}
 .section-head{grid-template-columns:1fr;gap:14px;align-items:start;}
 .scene-grid{grid-template-columns:1fr;gap:24px;}
 .scene-figure img{height:260px;}
 .faq-grid{grid-template-columns:1fr;}
 .cta-card{grid-template-columns:1fr;padding:32px 26px;}
 .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:600px){
 .container{padding:0 18px;}
 .header-inner{height:62px;gap:12px;}
 .brand{font-size:17px;}
 .nav-cta{display:none;}
 .hero-live{padding:40px 0 52px;}
 .hero-sub{font-size:15px;}
 .section{padding:52px 0;}
 .stat-grid,.rule-grid,.path-list{grid-template-columns:1fr;}
 .live-cover img{height:160px;}
 .subscribe{flex-direction:column;}
 .subscribe .btn{width:100%;}
 .compare-head{display:none;}
 .compare-row{grid-template-columns:1fr;}
 .compare-wrong{border-right:0;border-bottom:1px solid rgba(255,255,255,.05);}
 .post-item{flex-direction:column;align-items:flex-start;gap:12px;}
 .post-item-meta{flex-direction:row;align-items:center;gap:10px;}
 .footer-grid{grid-template-columns:1fr;gap:26px;}
 .cta-card{padding:26px 20px;}
 .step{gap:16px;}
 .step-num{width:42px;height:42px;font-size:15px;}
 .steps::before{left:20px;}
}