/* roulang page: index */
:root{
  --brand:#2f5bff;
  --brand-2:#7b3ff2;
  --brand-soft:#eef2ff;
  --accent:#0fb98b;
  --gold:#e8a10b;
  --ink:#0e1729;
  --ink-2:#20304a;
  --muted:#5c6b82;
  --line:#e4eaf3;
  --bg:#f5f7fb;
  --surface:#ffffff;
  --grad:linear-gradient(135deg,#2f5bff 0%,#7b3ff2 100%);
  --grad-soft:linear-gradient(135deg,rgba(47,91,255,.10),rgba(123,63,242,.10));
  --radius-s:8px;
  --radius:14px;
  --radius-l:20px;
  --shadow-s:0 2px 10px rgba(16,32,66,.06);
  --shadow-m:0 14px 34px rgba(16,32,66,.10);
  --shadow-l:0 26px 60px rgba(16,32,66,.16);
  --sp:28px;
  --maxw:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-2);}
h1,h2,h3,h4{margin:0;color:var(--ink);line-height:1.35;font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:3px solid rgba(47,91,255,.45);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(10,18,34,.18);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.16);
  transition:background .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.site-header.scrolled{
  background:rgba(255,255,255,.94);
  border-bottom-color:var(--line);
  box-shadow:0 8px 26px rgba(16,32,66,.10);
}
.nav-inner{
  height:64px;display:flex;align-items:center;justify-content:space-between;gap:18px;
}
.logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:#fff;letter-spacing:.01em;}
.logo:hover{color:#fff;}
.logo-mark{
  width:32px;height:32px;border-radius:9px;background:var(--grad);
  display:grid;place-items:center;flex:none;box-shadow:0 6px 16px rgba(47,91,255,.36);
}
.logo-mark svg{width:18px;height:18px;stroke:#fff;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.logo-text small{display:block;font-size:11px;font-weight:500;letter-spacing:.16em;opacity:.72;line-height:1.2;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links a{
  display:inline-block;padding:8px 14px;border-radius:var(--radius-s);
  font-size:15px;font-weight:500;color:rgba(255,255,255,.88);
  transition:background .2s ease,color .2s ease;
}
.nav-links a:hover{background:rgba(255,255,255,.16);color:#fff;}
.nav-links a.active{background:rgba(255,255,255,.22);color:#fff;font-weight:700;}
.site-header.scrolled .logo{color:var(--ink);}
.site-header.scrolled .logo:hover{color:var(--brand);}
.site-header.scrolled .nav-links a{color:var(--ink-2);}
.site-header.scrolled .nav-links a:hover{background:var(--brand-soft);color:var(--brand);}
.site-header.scrolled .nav-links a.active{background:var(--brand-soft);color:var(--brand);}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:10px;
  background:var(--grad);color:#fff;font-size:14px;font-weight:700;
  box-shadow:0 8px 20px rgba(47,91,255,.30);transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
}
.nav-cta:hover{color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(47,91,255,.38);filter:brightness(1.04);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid rgba(255,255,255,.34);align-items:center;justify-content:center;
  background:rgba(255,255,255,.10);
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#fff;border-radius:2px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.site-header.scrolled .nav-toggle{border-color:var(--line);background:#fff;}
.site-header.scrolled .nav-toggle span,
.site-header.scrolled .nav-toggle span::before,
.site-header.scrolled .nav-toggle span::after{background:var(--ink);}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:132px 0 76px;
  background:#0b1428;
  color:#fff;
}
.hero-bg{position:absolute;inset:0;z-index:0;}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.42;}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(760px 420px at 12% 8%,rgba(47,91,255,.42),transparent 62%),
    radial-gradient(680px 420px at 88% 22%,rgba(123,63,242,.40),transparent 64%),
    linear-gradient(180deg,rgba(9,16,32,.72) 0%,rgba(9,16,32,.90) 100%);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:start;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.26);
  font-size:13px;font-weight:600;letter-spacing:.02em;color:#e7ecff;
}
.hero-badge i{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(15,185,139,.22);}
.hero h1{
  color:#fff;font-size:clamp(28px,3.4vw,42px);line-height:1.26;
  margin:20px 0 18px;letter-spacing:-.02em;
}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(120deg,#8fb2ff,#c9a6ff 70%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:16px;line-height:1.85;color:rgba(233,239,255,.86);max-width:620px;}
.hero-points{margin:26px 0 0;display:grid;gap:12px;max-width:620px;}
.hero-points li{
  display:flex;gap:12px;align-items:flex-start;font-size:15px;color:rgba(237,242,255,.92);
  padding:12px 16px;border-radius:12px;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);
}
.hero-points b{color:#fff;}
.hero-points svg{width:18px;height:18px;flex:none;margin-top:3px;stroke:var(--accent);fill:none;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:10px;font-size:15px;font-weight:700;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 28px rgba(47,91,255,.34);}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px rgba(47,91,255,.44);}
.btn-ghost{background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.40);color:#fff;}
.btn-ghost:hover{background:rgba(255,255,255,.20);color:#fff;transform:translateY(-2px);}
.btn-line{border:1px solid var(--brand);color:var(--brand);background:#fff;}
.btn-line:hover{background:var(--brand-soft);color:var(--brand);transform:translateY(-2px);}
.trust-bar{
  position:relative;z-index:2;margin-top:40px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.18);
  display:flex;flex-wrap:wrap;gap:12px 30px;font-size:13.5px;color:rgba(226,234,255,.80);
}
.trust-bar span{display:inline-flex;align-items:center;gap:8px;}
.trust-bar span::before{content:"";width:6px;height:6px;border-radius:50%;background:linear-gradient(135deg,#7fd7c1,#8fb2ff);}
.hero-panel{
  border-radius:var(--radius-l);padding:24px;
  background:rgba(255,255,255,.09);
  border:1px solid rgba(255,255,255,.22);
  backdrop-filter:blur(12px);
  box-shadow:0 22px 50px rgba(4,10,24,.42);
}
.hero-panel h2{color:#fff;font-size:16px;letter-spacing:.02em;margin-bottom:4px;}
.hero-panel .panel-note{font-size:13px;color:rgba(224,232,255,.72);margin-bottom:16px;}
.panel-row{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:13px 14px;border-radius:12px;background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.12);margin-bottom:10px;
}
.panel-row:last-of-type{margin-bottom:0;}
.panel-row .pr-name{font-size:14px;color:#eef2ff;font-weight:600;}
.panel-row .pr-desc{font-size:12.5px;color:rgba(214,224,250,.70);margin-top:2px;}
.panel-row .pr-val{
  flex:none;font-size:13px;font-weight:800;padding:4px 12px;border-radius:999px;
  background:rgba(15,185,139,.18);color:#7ce4c6;border:1px solid rgba(15,185,139,.34);
}
.hero-panel .panel-foot{
  margin-top:16px;padding-top:14px;border-top:1px dashed rgba(255,255,255,.20);
  font-size:12.5px;color:rgba(214,224,250,.72);
}

/* ---------- section base ---------- */
.section{padding:76px 0;position:relative;}
.section.alt{background:#fff;}
.section.dark{background:#0d1730;color:#dbe4f7;}
.section.dark h2,.section.dark h3{color:#fff;}
.section-head{max-width:760px;margin-bottom:38px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:13px;font-weight:700;letter-spacing:.10em;text-transform:uppercase;
  color:var(--brand);margin-bottom:14px;
}
.eyebrow::before{content:"";width:26px;height:3px;border-radius:3px;background:var(--grad);}
.section-head h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:14px;}
.section-head p{font-size:15.5px;color:var(--muted);line-height:1.85;}
.section.dark .section-head p{color:#a9b7d2;}
.section.dark .eyebrow{color:#9db6ff;}

/* ---------- metrics ---------- */
.metrics{background:#fff;border-bottom:1px solid var(--line);}
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.metric-card{
  padding:24px 22px;border-radius:var(--radius);
  background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow-s);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-m);border-color:#cfdcf7;}
.metric-num{
  font-size:34px;font-weight:800;letter-spacing:-.02em;line-height:1.1;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.metric-num small{font-size:15px;font-weight:700;margin-left:4px;}
.metric-label{margin-top:8px;font-size:14.5px;font-weight:700;color:var(--ink);}
.metric-desc{margin-top:6px;font-size:13px;color:var(--muted);line-height:1.7;}

/* ---------- cards generic ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;box-shadow:var(--shadow-s);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-m);border-color:#cfdcf7;}
.card h3{font-size:18px;margin-bottom:10px;}
.card p{font-size:14.5px;color:var(--muted);line-height:1.8;}
.card .card-icon{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:var(--grad-soft);border:1px solid #e2e9fb;margin-bottom:16px;
}
.card .card-icon svg{width:20px;height:20px;stroke:var(--brand);fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;}
.tag{
  display:inline-block;padding:4px 11px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:var(--brand-soft);color:var(--brand);border:1px solid #dde5ff;
}
.tag.green{background:rgba(15,185,139,.10);color:#0a8f6a;border-color:rgba(15,185,139,.24);}
.tag.gold{background:rgba(232,161,11,.12);color:#a8730a;border-color:rgba(232,161,11,.26);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}

/* ---------- channel matrix ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.channel-card{
  position:relative;display:block;overflow:hidden;
  border-radius:var(--radius-l);border:1px solid var(--line);background:#fff;
  box-shadow:var(--shadow-s);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.channel-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-l);border-color:#c9d8f8;}
.channel-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:#e9eef8;}
.channel-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.channel-card:hover .channel-cover img{transform:scale(1.05);}
.channel-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(12,20,40,0) 42%,rgba(12,20,40,.58) 100%);}
.channel-body{padding:20px 22px 24px;}
.channel-body h3{font-size:18.5px;margin-bottom:9px;color:var(--ink);}
.channel-body p{font-size:14.5px;color:var(--muted);line-height:1.8;}
.channel-meta{display:flex;align-items:center;justify-content:space-between;margin-top:16px;font-size:13.5px;font-weight:700;color:var(--brand);}
.channel-meta svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;counter-reset:step;}
.step{
  position:relative;padding:30px 24px 26px;border-radius:var(--radius);
  background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-s);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-m);border-color:#cfdcf7;}
.step::before{
  counter-increment:step;content:"0" counter(step);
  display:inline-block;font-size:13px;font-weight:800;letter-spacing:.12em;
  color:#fff;background:var(--grad);border-radius:8px;padding:4px 10px;margin-bottom:16px;
}
.step h3{font-size:17.5px;margin-bottom:10px;}
.step p{font-size:14.5px;color:var(--muted);line-height:1.8;}

/* ---------- preview / table ---------- */
.preview-wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:start;}
.table-wrap{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-s);overflow:hidden;
}
.table-wrap table{width:100%;border-collapse:collapse;font-size:14.5px;}
.table-wrap thead th{
  text-align:left;padding:14px 18px;background:#f7f9fe;color:var(--ink);
  font-size:13.5px;font-weight:700;letter-spacing:.02em;border-bottom:1px solid var(--line);white-space:nowrap;
}
.table-wrap tbody td{padding:14px 18px;border-bottom:1px solid #eef2f9;color:var(--ink-2);}
.table-wrap tbody tr:last-child td{border-bottom:0;}
.table-wrap tbody tr:hover{background:#f9fbff;}
.table-wrap .num{font-weight:800;color:var(--brand);white-space:nowrap;}
.preview-figure{
  border-radius:var(--radius-l);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-m);background:#fff;
}
.preview-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.preview-figure figcaption{padding:16px 20px;font-size:13.5px;color:var(--muted);line-height:1.75;border-top:1px solid var(--line);}

/* ---------- pitfalls ---------- */
.pit-list{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.pit{
  display:flex;gap:16px;padding:22px;border-radius:var(--radius);
  background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-s);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.pit:hover{transform:translateY(-3px);box-shadow:var(--shadow-m);border-color:#cfdcf7;}
.pit-mark{
  flex:none;width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:rgba(232,161,11,.12);border:1px solid rgba(232,161,11,.28);
}
.pit-mark svg{width:18px;height:18px;stroke:#c98a08;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.pit h3{font-size:16.5px;margin-bottom:7px;}
.pit p{font-size:14px;color:var(--muted);line-height:1.78;}

/* ---------- path ---------- */
.path-line{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;position:relative;}
.path-node{
  padding:24px 20px;border-radius:var(--radius);background:#fff;
  border:1px solid var(--line);box-shadow:var(--shadow-s);position:relative;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.path-node:hover{transform:translateY(-4px);box-shadow:var(--shadow-m);border-color:#cfdcf7;}
.path-node b{display:block;font-size:13px;letter-spacing:.10em;color:var(--brand);margin-bottom:10px;}
.path-node h3{font-size:16.5px;margin-bottom:8px;}
.path-node p{font-size:13.8px;color:var(--muted);line-height:1.75;}

/* ---------- timeline ---------- */
.timeline{display:grid;gap:0;border-left:2px solid var(--line);margin-left:8px;}
.tl-item{position:relative;padding:0 0 28px 28px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-7px;top:7px;width:12px;height:12px;border-radius:50%;
  background:#fff;border:3px solid var(--brand);box-shadow:0 0 0 4px rgba(47,91,255,.10);
}
.tl-item time{display:block;font-size:12.5px;font-weight:800;letter-spacing:.06em;color:var(--brand);margin-bottom:6px;}
.tl-item h3{font-size:16.5px;margin-bottom:6px;}
.tl-item p{font-size:14px;color:var(--muted);line-height:1.78;}

/* ---------- news / cms ---------- */
.news-layout{display:grid;grid-template-columns:1.5fr .85fr;gap:32px;align-items:start;}
.news-list{display:grid;gap:16px;}
.news-card{
  display:block;padding:22px 24px;border-radius:var(--radius);
  background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-s);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-m);border-color:#cfdcf7;}
.news-card h3{font-size:17px;color:var(--ink);margin-bottom:8px;line-height:1.5;}
.news-card p{font-size:14px;color:var(--muted);line-height:1.78;}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:14px;font-size:12.5px;color:#8492a8;}
.news-meta .tag{font-size:12px;padding:3px 10px;}
.side-panel{
  border-radius:var(--radius-l);padding:24px;
  background:linear-gradient(160deg,#111c36,#1c2b52);
  border:1px solid rgba(255,255,255,.10);box-shadow:var(--shadow-m);color:#dbe4f7;
}
.side-panel h3{color:#fff;font-size:17px;margin-bottom:6px;}
.side-panel .side-note{font-size:13px;color:#98a8c6;margin-bottom:16px;}
.side-list{display:grid;gap:10px;}
.side-item{
  display:block;padding:12px 14px;border-radius:11px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.side-item:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.26);transform:translateX(3px);}
.side-item strong{display:block;font-size:14px;color:#fff;font-weight:600;line-height:1.6;}
.side-item span{display:block;font-size:12px;color:#93a4c4;margin-top:4px;}
.empty-note{
  padding:26px;border-radius:var(--radius);background:#fff;
  border:1px dashed #cfd9ea;color:var(--muted);font-size:14.5px;text-align:center;
}
.more-link{display:inline-flex;align-items:center;gap:7px;margin-top:22px;font-size:14.5px;font-weight:700;color:var(--brand);}
.more-link svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round;}
.more-link:hover{color:var(--brand-2);}

/* ---------- tag cloud ---------- */
.tag-cloud{display:flex;flex-wrap:wrap;gap:12px;}
.tag-cloud a,.tag-cloud span{
  display:inline-block;padding:9px 18px;border-radius:999px;font-size:14px;font-weight:600;
  background:#fff;border:1px solid var(--line);color:var(--ink-2);box-shadow:var(--shadow-s);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease;
}
.tag-cloud a:hover,.tag-cloud span:hover{transform:translateY(-2px);border-color:#c3d4f7;color:var(--brand);box-shadow:var(--shadow-m);}

/* ---------- assurance ---------- */
.assure-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.assure{
  padding:24px 20px;border-radius:var(--radius);text-align:center;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.assure:hover{background:rgba(255,255,255,.11);border-color:rgba(255,255,255,.28);transform:translateY(-3px);}
.assure .as-icon{
  width:44px;height:44px;margin:0 auto 14px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(47,91,255,.34),rgba(123,63,242,.34));
  border:1px solid rgba(255,255,255,.20);
}
.assure .as-icon svg{width:20px;height:20px;stroke:#cfe0ff;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;}
.assure h3{font-size:15.5px;color:#fff;margin-bottom:7px;}
.assure p{font-size:13.5px;color:#a8b7d3;line-height:1.75;}

/* ---------- reviews ---------- */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.review{
  padding:24px;border-radius:var(--radius);background:#fff;border:1px solid var(--line);
  box-shadow:var(--shadow-s);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.review:hover{transform:translateY(-4px);box-shadow:var(--shadow-m);border-color:#cfdcf7;}
.review .stars{color:var(--gold);font-size:14px;letter-spacing:2px;margin-bottom:12px;}
.review p{font-size:14.5px;color:var(--ink-2);line-height:1.8;}
.review .who{display:flex;align-items:center;gap:10px;margin-top:16px;font-size:13px;color:var(--muted);}
.review .who i{
  width:30px;height:30px;border-radius:50%;flex:none;
  background:var(--grad-soft);border:1px solid #dde5ff;display:grid;place-items:center;
  font-style:normal;font-weight:800;color:var(--brand);font-size:13px;
}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px;max-width:900px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-s);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:#c9d8f8;box-shadow:var(--shadow-m);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;font-size:16px;font-weight:700;color:var(--ink);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex:none;width:24px;height:24px;border-radius:50%;
  display:grid;place-items:center;font-size:16px;font-weight:700;color:var(--brand);
  background:var(--brand-soft);transition:transform .2s ease;
}
.faq-item[open] summary::after{content:"–";transform:rotate(180deg);}
.faq-item .faq-body{padding:0 22px 20px;font-size:14.5px;color:var(--muted);line-height:1.85;}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-l);
  padding:48px 44px;background:linear-gradient(135deg,#12204a,#2a1f5e);
  border:1px solid rgba(255,255,255,.12);box-shadow:var(--shadow-l);
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(123,63,242,.52),transparent 68%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:center;}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.4vw,28px);margin-bottom:12px;}
.cta-inner p{font-size:15px;color:#b8c6e2;line-height:1.85;}
.cta-form{display:flex;gap:10px;flex-wrap:wrap;}
.cta-form input{
  flex:1 1 220px;min-width:0;padding:13px 16px;border-radius:10px;
  border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.10);
  color:#fff;font-size:14.5px;
}
.cta-form input::placeholder{color:#9fb0d0;}
.cta-form input:focus{outline:2px solid #8fb2ff;outline-offset:2px;background:rgba(255,255,255,.16);}
.cta-form .btn-primary{box-shadow:0 12px 28px rgba(123,63,242,.42);}
.form-msg{margin-top:12px;font-size:13.5px;color:#7ce4c6;}

/* ---------- footer ---------- */
.site-footer{background:#0b1428;color:#9fb0cd;padding:60px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:40px;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.12);}
.footer-brand .logo{color:#fff;font-size:18px;margin-bottom:14px;}
.footer-brand p{font-size:14px;line-height:1.85;color:#8fa1c1;max-width:380px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:#9fb0cd;transition:color .2s ease,padding-left .2s ease;}
.footer-col a:hover{color:#fff;padding-left:4px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;
  padding-top:22px;font-size:13px;color:#7d8fae;
}
.footer-bottom .fb-links{display:flex;flex-wrap:wrap;gap:18px;}
.footer-bottom a{color:#7d8fae;}
.footer-bottom a:hover{color:#fff;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:36px;}
  .hero{padding:120px 0 64px;}
  .metric-grid{grid-template-columns:repeat(2,1fr);}
  .grid-3,.channel-grid,.steps,.review-grid{grid-template-columns:repeat(2,1fr);}
  .assure-grid{grid-template-columns:repeat(2,1fr);}
  .path-line{grid-template-columns:repeat(2,1fr);}
  .preview-wrap,.news-layout,.cta-inner{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:768px){
  .nav-toggle{display:flex;}
  .nav-links{
    position:absolute;top:64px;left:16px;right:16px;
    flex-direction:column;align-items:stretch;gap:4px;
    background:#fff;border:1px solid var(--line);border-radius:14px;
    box-shadow:var(--shadow-l);padding:12px;
    display:none;
  }
  .nav-links.open{display:flex;}
  .nav-links a{color:var(--ink-2);padding:11px 14px;font-size:15px;}
  .nav-links a:hover{background:var(--brand-soft);color:var(--brand);}
  .nav-links a.active{background:var(--brand-soft);color:var(--brand);}
  .nav-cta{display:none;}
  .hero{padding:104px 0 56px;}
  .hero-points li{font-size:14px;}
  .section{padding:56px 0;}
  .pit-list{grid-template-columns:1fr;}
  .grid-3,.channel-grid,.steps,.review-grid,.metric-grid,.assure-grid,.path-line{grid-template-columns:1fr;}
  .cta-band{padding:34px 22px;}
  .footer-grid{grid-template-columns:1fr;}
  .trust-bar{gap:10px 20px;font-size:12.5px;}
}
@media (max-width:520px){
  .container{padding:0 18px;}
  .hero h1{font-size:26px;}
  .hero-sub{font-size:15px;}
  .btn{width:100%;padding:13px 18px;}
  .hero-actions{gap:10px;}
  .metric-num{font-size:28px;}
  .section-head h2{font-size:21px;}
  .cta-form input{flex:1 1 100%;}
  .cta-form .btn{width:100%;}
  .table-wrap table{font-size:13.5px;}
  .table-wrap thead th,.table-wrap tbody td{padding:11px 13px;}
}

/* roulang page: article */
:root{
 --brand:#2f5bff;
 --brand-2:#7b3ff2;
 --brand-soft:#eef2ff;
 --accent:#0fb98b;
 --gold:#e8a10b;
 --ink:#0e1729;
 --ink-2:#20304a;
 --muted:#5c6b82;
 --line:#e4eaf3;
 --bg:#f5f7fb;
 --surface:#ffffff;
 --grad:linear-gradient(135deg,#2f5bff 0%,#7b3ff2 100%);
 --grad-soft:linear-gradient(135deg,rgba(47,91,255,.10),rgba(123,63,242,.10));
 --radius-s:8px;
 --radius:14px;
 --radius-l:20px;
 --shadow-s:0 2px 10px rgba(16,32,66,.06);
 --shadow-m:0 14px 34px rgba(16,32,66,.10);
 --shadow-l:0 26px 60px rgba(16,32,66,.16);
 --sp:28px;
 --maxw:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
 margin:0;padding:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
 font-size:16px;line-height:1.78;color:var(--ink-2);background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-2);}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4{margin:0;color:var(--ink);line-height:1.35;letter-spacing:-.01em;}
p{margin:0 0 14px;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(47,91,255,.45);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
 position:fixed;top:0;left:0;right:0;z-index:80;
 background:rgba(10,18,34,.20);
 backdrop-filter:blur(14px) saturate(140%);
 -webkit-backdrop-filter:blur(14px) saturate(140%);
 border-bottom:1px solid rgba(255,255,255,.16);
 transition:background .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.site-header.scrolled{
 background:rgba(255,255,255,.95);
 border-bottom-color:var(--line);
 box-shadow:0 8px 26px rgba(16,32,66,.10);
}
.nav-inner{height:64px;display:flex;align-items:center;justify-content:space-between;gap:18px;}
.logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:#fff;letter-spacing:.01em;}
.logo:hover{color:#fff;}
.logo-mark{
 width:32px;height:32px;border-radius:9px;background:var(--grad);
 display:grid;place-items:center;flex:none;box-shadow:0 6px 16px rgba(47,91,255,.36);
}
.logo-mark svg{width:18px;height:18px;stroke:#fff;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.logo-mark svg path{fill:#fff;stroke:none;}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-text small{display:block;font-size:11px;font-weight:500;letter-spacing:.16em;opacity:.72;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links a{
 display:inline-block;padding:8px 14px;border-radius:var(--radius-s);
 font-size:15px;font-weight:500;color:rgba(255,255,255,.88);
 transition:background .2s ease,color .2s ease;
}
.nav-links a:hover{background:rgba(255,255,255,.16);color:#fff;}
.nav-links a.active{background:rgba(255,255,255,.22);color:#fff;font-weight:700;}
.site-header.scrolled .logo{color:var(--ink);}
.site-header.scrolled .logo:hover{color:var(--brand);}
.site-header.scrolled .nav-links a{color:var(--ink-2);}
.site-header.scrolled .nav-links a:hover{background:var(--brand-soft);color:var(--brand);}
.site-header.scrolled .nav-links a.active{background:var(--brand-soft);color:var(--brand);}
.nav-cta{
 display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:10px;
 background:var(--grad);color:#fff;font-size:14px;font-weight:700;
 box-shadow:0 8px 20px rgba(47,91,255,.30);
 transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
}
.nav-cta:hover{color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(47,91,255,.38);filter:brightness(1.04);}
.nav-toggle{
 display:none;width:42px;height:42px;border-radius:10px;
 border:1px solid rgba(255,255,255,.34);align-items:center;justify-content:center;
 background:rgba(255,255,255,.10);
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#fff;border-radius:2px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.site-header.scrolled .nav-toggle{border-color:var(--line);background:#fff;}
.site-header.scrolled .nav-toggle span,
.site-header.scrolled .nav-toggle span::before,
.site-header.scrolled .nav-toggle span::after{background:var(--ink);}

/* ---------- buttons ---------- */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:13px 26px;border-radius:10px;font-size:15px;font-weight:700;
 transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 26px rgba(47,91,255,.32);}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px rgba(47,91,255,.40);}
.btn-ghost{background:rgba(255,255,255,.10);color:#fff;border:1px solid rgba(255,255,255,.42);}
.btn-ghost:hover{background:rgba(255,255,255,.20);color:#fff;transform:translateY(-2px);}
.btn-outline{background:#fff;color:var(--brand);border:1px solid rgba(47,91,255,.32);box-shadow:var(--shadow-s);}
.btn-outline:hover{background:var(--brand-soft);color:var(--brand-2);transform:translateY(-2px);}
.btn-sm{padding:9px 18px;font-size:14px;border-radius:8px;}

/* ---------- article hero ---------- */
.article-hero{
 position:relative;overflow:hidden;
 padding:120px 0 68px;background:#0b1428;color:#fff;
}
.hero-bg{position:absolute;inset:0;z-index:0;}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.40;}
.hero-bg::after{
 content:"";position:absolute;inset:0;
 background:
 radial-gradient(760px 420px at 12% 8%,rgba(47,91,255,.44),transparent 62%),
 radial-gradient(680px 420px at 88% 22%,rgba(123,63,242,.42),transparent 64%),
 linear-gradient(180deg,rgba(9,16,32,.74) 0%,rgba(9,16,32,.92) 100%);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.12fr .88fr;gap:44px;align-items:start;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(226,234,255,.72);margin-bottom:18px;}
.crumb a{color:rgba(226,234,255,.86);}
.crumb a:hover{color:#fff;}
.crumb span.sep{opacity:.5;}
.kicker{
 display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
 background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.26);
 font-size:13px;font-weight:700;letter-spacing:.02em;color:#e7ecff;
}
.kicker i{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(15,185,139,.22);}
.article-hero h1{
 color:#fff;font-size:clamp(26px,3.2vw,40px);line-height:1.3;
 margin:18px 0 16px;letter-spacing:-.02em;
}
.hero-sub{font-size:16px;line-height:1.85;color:rgba(233,239,255,.86);max-width:660px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.meta-chip{
 display:inline-flex;align-items:center;gap:7px;
 padding:7px 14px;border-radius:999px;font-size:13px;font-weight:600;
 background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
 color:rgba(236,242,255,.90);
}
.meta-chip svg{width:14px;height:14px;stroke:var(--accent);fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.tag{
 display:inline-flex;align-items:center;gap:6px;
 padding:6px 13px;border-radius:999px;font-size:12.5px;font-weight:600;
 background:var(--brand-soft);color:var(--brand);border:1px solid rgba(47,91,255,.16);
}
.article-hero .tag{background:rgba(255,255,255,.12);color:#e9eeff;border-color:rgba(255,255,255,.22);}
.hero-panel{
 background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.20);
 border-radius:var(--radius-l);padding:16px;backdrop-filter:blur(8px);
 box-shadow:0 22px 50px rgba(6,12,26,.36);
}
.hero-panel figure{margin:0;}
.hero-panel img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius);}
.hero-panel figcaption{font-size:12.5px;color:rgba(226,234,255,.72);margin-top:10px;line-height:1.6;}
.panel-list{display:grid;gap:10px;margin-top:14px;}
.panel-list li{
 display:flex;justify-content:space-between;gap:12px;align-items:center;
 padding:10px 14px;border-radius:10px;font-size:13.5px;
 background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);
 color:rgba(238,243,255,.92);
}
.panel-list b{color:#fff;font-weight:800;}

/* ---------- sections ---------- */
.section{padding:64px 0;}
.section.alt{background:linear-gradient(180deg,#ffffff 0%,#f2f5fc 100%);}
.section.dark{background:#0c152a;color:rgba(226,234,255,.86);}
.section-head{max-width:760px;margin-bottom:34px;}
.section-head .eyebrow{
 display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:800;
 letter-spacing:.14em;text-transform:uppercase;color:var(--brand);margin-bottom:12px;
}
.section-head .eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--grad);}
.section-head h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:12px;}
.section-head p{font-size:15.5px;color:var(--muted);margin:0;}
.section.dark .section-head h2{color:#fff;}
.section.dark .section-head p{color:rgba(214,225,247,.78);}
.section.dark .section-head .eyebrow{color:#9fb6ff;}

/* ---------- article layout ---------- */
.article-wrap{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:36px;align-items:start;}
.article-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-l);
 box-shadow:var(--shadow-m);padding:38px 40px;
}
.article-body{font-size:16px;line-height:1.85;color:var(--ink-2);}
.article-body h2{
 font-size:23px;margin:34px 0 14px;padding-left:14px;position:relative;
}
.article-body h2:first-child{margin-top:0;}
.article-body h2::before{
 content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:var(--grad);
}
.article-body h3{font-size:18px;margin:26px 0 10px;color:var(--ink);}
.article-body p{margin:0 0 16px;}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:0;}
.article-body ul li,.article-body ol li{
 position:relative;padding-left:20px;margin-bottom:9px;
}
.article-body ul li::before{
 content:"";position:absolute;left:4px;top:11px;width:7px;height:7px;border-radius:2px;background:var(--brand);
}
.article-body ol{counter-reset:num;}
.article-body ol li{counter-increment:num;}
.article-body ol li::before{
 content:counter(num);position:absolute;left:0;top:2px;
 font-size:12px;font-weight:800;color:var(--brand);
 background:var(--brand-soft);border-radius:5px;width:16px;height:16px;
 display:grid;place-items:center;
}
.article-body blockquote{
 margin:22px 0;padding:18px 22px;border-radius:var(--radius);
 background:var(--grad-soft);border-left:4px solid var(--brand);
 color:var(--ink-2);font-size:15.5px;
}
.article-body table{width:100%;border-collapse:collapse;margin:18px 0;font-size:14.5px;}
.article-body th,.article-body td{
 padding:11px 14px;border-bottom:1px solid var(--line);text-align:left;
}
.article-body th{background:#f7f9fe;font-weight:800;color:var(--ink);}
.article-body img{border-radius:var(--radius);margin:18px 0;box-shadow:var(--shadow-s);}
.article-body pre{
 background:#0d1730;color:#dfe8ff;padding:18px 20px;border-radius:var(--radius);
 overflow:auto;font-size:13.5px;line-height:1.7;margin:18px 0;
}
.article-body code{background:#eef2ff;color:#2f5bff;padding:2px 6px;border-radius:5px;font-size:13.5px;}
.article-body pre code{background:none;color:inherit;padding:0;}
.article-body a{font-weight:600;text-decoration:underline;text-decoration-color:rgba(47,91,255,.35);}
.empty-box{text-align:center;padding:26px 0;}
.empty-box h2{font-size:22px;margin-bottom:10px;padding:0;}
.empty-box h2::before{display:none;}
.empty-box p{color:var(--muted);margin-bottom:20px;}

/* ---------- sidebar ---------- */
.side-stack{display:grid;gap:20px;position:sticky;top:88px;}
.side-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow-s);padding:22px;
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.side-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-m);border-color:rgba(47,91,255,.24);}
.side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h3::before{content:"";width:4px;height:16px;border-radius:3px;background:var(--grad);}
.info-rows{display:grid;gap:10px;}
.info-rows div{display:flex;justify-content:space-between;gap:10px;font-size:14px;padding-bottom:9px;border-bottom:1px dashed var(--line);}
.info-rows div:last-child{border-bottom:0;padding-bottom:0;}
.info-rows span{color:var(--muted);}
.info-rows b{color:var(--ink);font-weight:700;text-align:right;}
.side-note{font-size:13.5px;color:var(--muted);line-height:1.75;margin:0;}
.side-cta{background:var(--grad);border:0;color:#fff;}
.side-cta h3{color:#fff;}
.side-cta h3::before{background:rgba(255,255,255,.75);}
.side-cta p{font-size:13.5px;color:rgba(255,255,255,.86);margin-bottom:16px;}
.side-cta .btn{width:100%;background:#fff;color:var(--brand);box-shadow:0 10px 24px rgba(6,12,26,.22);}
.side-cta .btn:hover{color:var(--brand-2);}

/* ---------- quote ---------- */
.pull-quote{
 position:relative;margin:0;padding:36px 40px 36px 74px;
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-l);
 box-shadow:var(--shadow-m);
}
.pull-quote::before{
 content:"“";position:absolute;left:22px;top:14px;
 font-size:64px;line-height:1;font-weight:800;color:rgba(47,91,255,.20);
}
.pull-quote p{font-size:18px;line-height:1.8;color:var(--ink);margin:0 0 12px;font-weight:600;}
.pull-quote cite{font-style:normal;font-size:13.5px;color:var(--muted);}

/* ---------- data grid ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow-s);padding:24px;
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-m);border-color:rgba(47,91,255,.26);}
.card .icon{
 width:42px;height:42px;border-radius:12px;background:var(--grad-soft);
 display:grid;place-items:center;margin-bottom:14px;
}
.card .icon svg{width:21px;height:21px;stroke:var(--brand);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.card h3{font-size:17px;margin-bottom:8px;}
.card p{font-size:14.5px;color:var(--muted);margin:0 0 14px;line-height:1.75;}
.card .tag{margin-top:2px;}
.card-metric .num{
 font-size:32px;font-weight:800;letter-spacing:-.02em;color:var(--ink);
 background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
 line-height:1.2;
}
.card-metric .label{font-size:13.5px;color:var(--muted);margin-top:6px;}

/* ---------- table card ---------- */
.table-wrap{overflow-x:auto;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-s);}
table.data{width:100%;border-collapse:collapse;font-size:14.5px;min-width:620px;}
table.data thead th{
 background:#f6f8fe;color:var(--ink);font-weight:800;text-align:left;
 padding:14px 18px;border-bottom:1px solid var(--line);white-space:nowrap;
}
table.data tbody td{padding:14px 18px;border-bottom:1px solid var(--line);color:var(--ink-2);}
table.data tbody tr:last-child td{border-bottom:0;}
table.data tbody tr:hover{background:#f8faff;}
table.data b{color:var(--brand);}
.pill{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12.5px;font-weight:700;background:var(--brand-soft);color:var(--brand);}
.pill.green{background:rgba(15,185,139,.12);color:#0a9c76;}
.pill.gold{background:rgba(232,161,11,.14);color:#a6740a;}

/* ---------- list rows ---------- */
.rows{display:grid;gap:14px;}
.row-item{
 display:grid;grid-template-columns:56px minmax(0,1fr);gap:16px;align-items:start;
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:20px 22px;box-shadow:var(--shadow-s);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.row-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-m);border-color:rgba(47,91,255,.26);}
.row-item .idx{
 width:56px;height:56px;border-radius:14px;display:grid;place-items:center;
 background:var(--grad);color:#fff;font-weight:800;font-size:18px;
 box-shadow:0 10px 22px rgba(47,91,255,.28);
}
.row-item h3{font-size:16.5px;margin-bottom:6px;}
.row-item p{font-size:14.5px;color:var(--muted);margin:0;line-height:1.75;}

/* ---------- faq ---------- */
.faq{display:grid;gap:14px;max-width:900px;}
.faq details{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow-s);padding:0;overflow:hidden;
 transition:border-color .2s ease,box-shadow .2s ease;
}
.faq details[open]{border-color:rgba(47,91,255,.30);box-shadow:var(--shadow-m);}
.faq summary{
 list-style:none;cursor:pointer;padding:18px 22px;
 font-size:16px;font-weight:700;color:var(--ink);
 display:flex;align-items:center;justify-content:space-between;gap:14px;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{
 content:"+";font-size:20px;font-weight:700;color:var(--brand);
 width:26px;height:26px;border-radius:8px;background:var(--brand-soft);
 display:grid;place-items:center;flex:none;line-height:1;transition:transform .2s ease;
}
.faq details[open] summary::after{content:"–";transform:rotate(180deg);}
.faq .faq-body{padding:0 22px 20px;font-size:14.8px;color:var(--muted);line-height:1.8;}

/* ---------- cta ---------- */
.cta-band{
 position:relative;overflow:hidden;border-radius:var(--radius-l);
 background:var(--grad);color:#fff;padding:46px 44px;
 box-shadow:var(--shadow-l);
 display:grid;grid-template-columns:1.15fr .85fr;gap:34px;align-items:center;
}
.cta-band::after{
 content:"";position:absolute;right:-80px;top:-90px;width:290px;height:290px;border-radius:50%;
 background:rgba(255,255,255,.14);
}
.cta-band h2{color:#fff;font-size:clamp(21px,2.3vw,27px);margin-bottom:12px;}
.cta-band p{color:rgba(255,255,255,.88);font-size:15px;margin:0;}
.cta-form{position:relative;z-index:2;display:flex;gap:10px;flex-wrap:wrap;}
.cta-form input{
 flex:1 1 200px;min-height:48px;padding:0 16px;border-radius:10px;
 border:1px solid rgba(255,255,255,.42);background:rgba(255,255,255,.94);
 color:var(--ink);font-size:15px;
}
.cta-form input::placeholder{color:#8b97ad;}
.cta-form input:focus{outline:3px solid rgba(255,255,255,.55);outline-offset:1px;}
.cta-form .btn{background:#0b1428;color:#fff;box-shadow:0 12px 26px rgba(6,12,26,.30);}
.cta-form .btn:hover{background:#152246;color:#fff;}
.cta-hint{font-size:12.5px;color:rgba(255,255,255,.78);margin-top:10px;width:100%;}

/* ---------- footer ---------- */
.site-footer{background:#0b1428;color:rgba(214,225,247,.78);padding:56px 0 26px;margin-top:0;}
.footer-grid{
 display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:36px;
 padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand .logo{color:#fff;margin-bottom:16px;}
.footer-brand .logo:hover{color:#fff;}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(198,211,238,.72);margin:0;max-width:430px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:800;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:rgba(206,218,242,.78);}
.footer-col a:hover{color:#fff;}
.footer-bottom{
 display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
 padding-top:22px;font-size:13px;color:rgba(176,192,222,.66);
}
.fb-links{display:flex;flex-wrap:wrap;gap:16px;}
.fb-links a{color:rgba(186,201,230,.72);font-size:13px;}
.fb-links a:hover{color:#fff;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
 .hero-inner{grid-template-columns:1fr;gap:32px;}
 .article-wrap{grid-template-columns:1fr;}
 .side-stack{position:static;}
 .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
 .cta-band{grid-template-columns:1fr;padding:36px 28px;}
 .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
 .footer-brand{grid-column:1 / -1;}
}
@media (max-width:900px){
 .nav-toggle{display:flex;}
 .nav-cta{display:none;}
 .nav-links{
  position:absolute;top:64px;left:0;right:0;display:none;
  flex-direction:column;align-items:stretch;gap:4px;
  background:#fff;padding:12px 18px 18px;border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-m);
 }
 .nav-links.open{display:flex;}
 .nav-links a{color:var(--ink-2);padding:13px 14px;font-size:15px;}
 .nav-links a:hover,.nav-links a.active{background:var(--brand-soft);color:var(--brand);}
}
@media (max-width:768px){
 .container{padding:0 18px;}
 .article-hero{padding:104px 0 52px;}
 .section{padding:48px 0;}
 .article-card{padding:26px 20px;border-radius:var(--radius);}
 .article-body h2{font-size:20px;}
 .grid-3,.grid-2{grid-template-columns:1fr;}
 .pull-quote{padding:26px 22px 26px 52px;}
 .pull-quote::before{font-size:52px;left:14px;top:10px;}
 .pull-quote p{font-size:16px;}
 .row-item{grid-template-columns:44px minmax(0,1fr);padding:18px;gap:12px;}
 .row-item .idx{width:44px;height:44px;border-radius:12px;font-size:15px;}
 .footer-grid{grid-template-columns:1fr;}
 .footer-bottom{flex-direction:column;}
}
@media (max-width:520px){
 .logo-text{font-size:15px;}
 .logo-text small{font-size:10px;letter-spacing:.1em;}
 .article-hero h1{font-size:23px;}
 .hero-sub{font-size:15px;}
 .btn{width:100%;}
 .hero-actions .btn,.cta-form .btn{width:100%;}
 .cta-form{flex-direction:column;}
 .cta-form input{width:100%;}
 .meta-chip{font-size:12px;}
 .section-head h2{font-size:20px;}
}

/* roulang page: category1 */
:root{
 --brand:#2f5bff;
 --brand-2:#7b3ff2;
 --brand-soft:#eef2ff;
 --accent:#0fb98b;
 --gold:#e8a10b;
 --ink:#0e1729;
 --ink-2:#20304a;
 --muted:#5c6b82;
 --line:#e4eaf3;
 --bg:#f5f7fb;
 --surface:#ffffff;
 --grad:linear-gradient(135deg,#2f5bff 0%,#7b3ff2 100%);
 --grad-soft:linear-gradient(135deg,rgba(47,91,255,.10),rgba(123,63,242,.10));
 --radius-s:8px;
 --radius:14px;
 --radius-l:20px;
 --shadow-s:0 2px 10px rgba(16,32,66,.06);
 --shadow-m:0 14px 34px rgba(16,32,66,.10);
 --shadow-l:0 26px 60px rgba(16,32,66,.16);
 --sp:28px;
 --maxw:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
 margin:0;padding:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
 font-size:16px;line-height:1.78;color:var(--ink-2);background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--ink);line-height:1.3;letter-spacing:-.01em;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-2);}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:3px solid rgba(47,91,255,.45);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
 position:fixed;top:0;left:0;right:0;z-index:80;
 background:rgba(10,18,34,.18);
 backdrop-filter:blur(14px) saturate(140%);
 -webkit-backdrop-filter:blur(14px) saturate(140%);
 border-bottom:1px solid rgba(255,255,255,.16);
 transition:background .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.site-header.scrolled{
 background:rgba(255,255,255,.94);
 border-bottom-color:var(--line);
 box-shadow:0 8px 26px rgba(16,32,66,.10);
}
.nav-inner{height:64px;display:flex;align-items:center;justify-content:space-between;gap:18px;}
.logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:#fff;letter-spacing:.01em;}
.logo:hover{color:#fff;}
.logo-mark{
 width:32px;height:32px;border-radius:9px;background:var(--grad);
 display:grid;place-items:center;flex:none;box-shadow:0 6px 16px rgba(47,91,255,.36);
}
.logo-mark svg{width:18px;height:18px;stroke:#fff;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.logo-text small{display:block;font-size:11px;font-weight:500;letter-spacing:.16em;opacity:.72;line-height:1.2;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links a{
 display:inline-block;padding:8px 14px;border-radius:var(--radius-s);
 font-size:15px;font-weight:500;color:rgba(255,255,255,.88);
 transition:background .2s ease,color .2s ease;
}
.nav-links a:hover{background:rgba(255,255,255,.16);color:#fff;}
.nav-links a.active{background:rgba(255,255,255,.22);color:#fff;font-weight:700;}
.site-header.scrolled .logo{color:var(--ink);}
.site-header.scrolled .logo:hover{color:var(--brand);}
.site-header.scrolled .nav-links a{color:var(--ink-2);}
.site-header.scrolled .nav-links a:hover{background:var(--brand-soft);color:var(--brand);}
.site-header.scrolled .nav-links a.active{background:var(--brand-soft);color:var(--brand);}
.nav-cta{
 display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:10px;
 background:var(--grad);color:#fff;font-size:14px;font-weight:700;
 box-shadow:0 8px 20px rgba(47,91,255,.30);
 transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
}
.nav-cta:hover{color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(47,91,255,.38);filter:brightness(1.04);}
.nav-toggle{
 display:none;width:42px;height:42px;border-radius:10px;
 border:1px solid rgba(255,255,255,.34);align-items:center;justify-content:center;
 background:rgba(255,255,255,.10);
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#fff;border-radius:2px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.site-header.scrolled .nav-toggle{border-color:var(--line);background:#fff;}
.site-header.scrolled .nav-toggle span,
.site-header.scrolled .nav-toggle span::before,
.site-header.scrolled .nav-toggle span::after{background:var(--ink);}

/* ---------- hero ---------- */
.page-hero{position:relative;overflow:hidden;padding:136px 0 78px;background:#0b1428;color:#fff;text-align:center;}
.hero-bg{position:absolute;inset:0;z-index:0;}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.40;}
.hero-bg::after{
 content:"";position:absolute;inset:0;
 background:
 radial-gradient(760px 420px at 16% 6%,rgba(47,91,255,.44),transparent 62%),
 radial-gradient(700px 420px at 84% 18%,rgba(123,63,242,.42),transparent 64%),
 linear-gradient(180deg,rgba(9,16,32,.70) 0%,rgba(9,16,32,.92) 100%);
}
.hero-inner{position:relative;z-index:2;max-width:820px;margin:0 auto;}
.hero-badge{
 display:inline-flex;align-items:center;gap:8px;padding:6px 15px;border-radius:999px;
 background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.26);
 font-size:13px;font-weight:600;letter-spacing:.02em;color:#e7ecff;
}
.hero-badge i{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(15,185,139,.22);}
.page-hero h1{
 color:#fff;font-size:clamp(27px,3.3vw,42px);line-height:1.28;margin:20px 0 16px;letter-spacing:-.02em;
}
.page-hero h1 em{
 font-style:normal;
 background:linear-gradient(120deg,#8fb2ff,#c9a6ff 70%);
 -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:16px;line-height:1.85;color:rgba(233,239,255,.86);max-width:680px;margin:0 auto;}
.search-wrap{max-width:620px;margin:30px auto 0;}
.search-box{
 display:flex;align-items:center;gap:10px;padding:8px 8px 8px 18px;
 background:rgba(255,255,255,.96);border-radius:14px;box-shadow:0 18px 40px rgba(4,10,24,.34);
}
.search-box svg{width:19px;height:19px;flex:none;stroke:var(--muted);fill:none;stroke-width:2.1;stroke-linecap:round;stroke-linejoin:round;}
.search-box input{
 flex:1;min-width:0;border:0;background:none;padding:10px 0;font-size:15px;color:var(--ink);
}
.search-box input::placeholder{color:#93a1b8;}
.search-box input:focus{outline:none;}
.search-box button{
 padding:11px 20px;border-radius:10px;background:var(--grad);color:#fff;font-size:14px;font-weight:700;
 transition:transform .2s ease,filter .2s ease;
}
.search-box button:hover{transform:translateY(-1px);filter:brightness(1.06);}
.quick-tags{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:22px;}
.quick-tags a{
 display:inline-flex;align-items:center;gap:6px;padding:7px 15px;border-radius:999px;
 font-size:13.5px;color:rgba(240,245,255,.92);
 background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.20);
 transition:background .2s ease,transform .2s ease,color .2s ease;
}
.quick-tags a:hover{background:rgba(255,255,255,.22);color:#fff;transform:translateY(-2px);}

/* ---------- sections ---------- */
.section{padding:66px 0;}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-deep{background:linear-gradient(180deg,#0d1830 0%,#131f3d 100%);color:rgba(232,239,255,.88);}
.section-deep h2,.section-deep h3{color:#fff;}
.section-head{max-width:760px;margin:0 0 34px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;
 letter-spacing:.14em;text-transform:uppercase;color:var(--brand);margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:3px;border-radius:3px;background:var(--grad);}
.section-deep .eyebrow{color:#9db6ff;}
.section-title{font-size:clamp(22px,2.4vw,30px);font-weight:800;letter-spacing:-.02em;}
.section-desc{margin-top:12px;color:var(--muted);font-size:15.5px;line-height:1.8;}
.section-deep .section-desc{color:rgba(219,229,249,.76);}

/* ---------- metrics ---------- */
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.metric-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:24px 22px;box-shadow:var(--shadow-s);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.metric-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-m);border-color:#cfdcf5;}
.metric-num{
 font-size:30px;font-weight:800;letter-spacing:-.02em;
 background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.metric-num span{font-size:15px;font-weight:700;margin-left:2px;}
.metric-label{font-size:14.5px;font-weight:700;color:var(--ink);margin-top:6px;}
.metric-desc{font-size:13.5px;color:var(--muted);margin-top:6px;line-height:1.7;}

/* ---------- fan cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.fan-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-l);
 overflow:hidden;box-shadow:var(--shadow-s);display:flex;flex-direction:column;
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.fan-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-m);border-color:#c9d8f7;}
.fan-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#dbe4f5;}
.fan-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.fan-card:hover .fan-thumb img{transform:scale(1.04);}
.fan-thumb .badge{
 position:absolute;left:14px;top:14px;padding:4px 11px;border-radius:999px;
 font-size:12px;font-weight:700;color:#fff;background:rgba(14,23,41,.62);
 backdrop-filter:blur(6px);border:1px solid rgba(255,255,255,.24);
}
.fan-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1;}
.fan-body h3{font-size:18px;font-weight:800;}
.fan-body p{font-size:14.5px;color:var(--muted);margin-top:10px;line-height:1.78;}
.fan-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:16px;}
.tag{
 display:inline-block;padding:4px 11px;border-radius:999px;font-size:12.5px;font-weight:600;
 background:var(--brand-soft);color:var(--brand);border:1px solid rgba(47,91,255,.14);
}
.tag.green{background:rgba(15,185,139,.10);color:#0a8f6b;border-color:rgba(15,185,139,.22);}
.tag.gold{background:rgba(232,161,11,.12);color:#a26c00;border-color:rgba(232,161,11,.24);}
.tag.violet{background:rgba(123,63,242,.10);color:#5b27c4;border-color:rgba(123,63,242,.20);}

/* ---------- compare table ---------- */
.table-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-l);
 box-shadow:var(--shadow-s);overflow:hidden;
}
.table-scroll{overflow-x:auto;}
table.compare{width:100%;border-collapse:collapse;min-width:760px;}
table.compare th,table.compare td{
 padding:16px 20px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--line);vertical-align:top;
}
table.compare thead th{
 background:#f8faff;color:var(--ink);font-weight:800;font-size:14px;letter-spacing:.01em;white-space:nowrap;
}
table.compare tbody tr{transition:background .2s ease;}
table.compare tbody tr:hover{background:#f8faff;}
table.compare tbody tr:last-child td{border-bottom:0;}
table.compare td strong{color:var(--ink);}
.diff{color:#0a8f6b;font-weight:700;}
.note-line{
 display:flex;gap:10px;align-items:flex-start;margin-top:18px;padding:14px 18px;
 border-radius:var(--radius);background:var(--grad-soft);border:1px solid rgba(47,91,255,.14);
 font-size:14px;color:var(--ink-2);
}
.note-line svg{width:18px;height:18px;flex:none;margin-top:3px;stroke:var(--brand);fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- timeline ---------- */
.timeline{position:relative;margin:0;padding-left:30px;}
.timeline::before{
 content:"";position:absolute;left:9px;top:6px;bottom:6px;width:2px;
 background:linear-gradient(180deg,rgba(47,91,255,.65),rgba(123,63,242,.20));
 border-radius:2px;
}
.timeline li{position:relative;padding:0 0 26px 0;}
.timeline li:last-child{padding-bottom:0;}
.timeline li::before{
 content:"";position:absolute;left:-30px;top:6px;width:20px;height:20px;border-radius:50%;
 background:#fff;border:3px solid var(--brand);box-shadow:0 0 0 4px rgba(47,91,255,.10);
}
.timeline h3{font-size:16.5px;font-weight:800;}
.timeline p{font-size:14.5px;color:var(--muted);margin-top:6px;}
.section-deep .timeline::before{background:linear-gradient(180deg,rgba(157,182,255,.8),rgba(157,182,255,.18));}
.section-deep .timeline li::before{background:#131f3d;border-color:#7f9dff;box-shadow:0 0 0 4px rgba(127,157,255,.14);}
.section-deep .timeline p{color:rgba(214,226,249,.76);}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.news-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:22px;box-shadow:var(--shadow-s);display:flex;flex-direction:column;
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-m);border-color:#c9d8f7;}
.news-card h3{font-size:16.5px;font-weight:800;line-height:1.55;}
.news-card h3 a{color:var(--ink);}
.news-card h3 a:hover{color:var(--brand);}
.news-card p{font-size:14px;color:var(--muted);margin-top:10px;line-height:1.75;}
.news-meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:auto;padding-top:16px;font-size:12.5px;color:#7d8ba3;}
.news-meta .dot{width:4px;height:4px;border-radius:50%;background:#c3cddd;}
.news-empty{
 grid-column:1/-1;padding:38px 24px;text-align:center;border-radius:var(--radius);
 border:1px dashed #c9d5e8;background:#f8faff;color:var(--muted);font-size:14.5px;
}

/* ---------- assurance ---------- */
.assure-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.assure-card{
 display:flex;gap:16px;background:var(--surface);border:1px solid var(--line);
 border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-s);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.assure-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-m);border-color:#c9d8f7;}
.assure-icon{
 width:44px;height:44px;flex:none;border-radius:12px;display:grid;place-items:center;
 background:var(--grad-soft);border:1px solid rgba(47,91,255,.16);
}
.assure-icon svg{width:21px;height:21px;stroke:var(--brand);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.assure-card h3{font-size:16.5px;font-weight:800;}
.assure-card p{font-size:14.5px;color:var(--muted);margin-top:8px;line-height:1.75;}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px;max-width:900px;}
.faq-item{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow-s);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:#c9d8f7;box-shadow:var(--shadow-m);}
.faq-item summary{
 list-style:none;cursor:pointer;padding:18px 22px;font-size:16px;font-weight:700;color:var(--ink);
 display:flex;align-items:center;justify-content:space-between;gap:14px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
 content:"+";font-size:20px;font-weight:600;color:var(--brand);line-height:1;
 transition:transform .2s ease;
}
.faq-item[open] summary::after{content:"−";}
.faq-item .faq-answer{padding:0 22px 20px;font-size:14.5px;color:var(--muted);line-height:1.85;}

/* ---------- cta ---------- */
.cta-panel{
 position:relative;overflow:hidden;border-radius:var(--radius-l);padding:44px;
 background:var(--grad);color:#fff;box-shadow:var(--shadow-l);
 display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;
}
.cta-panel::after{
 content:"";position:absolute;right:-90px;top:-90px;width:300px;height:300px;border-radius:50%;
 background:rgba(255,255,255,.14);
}
.cta-panel h2{color:#fff;font-size:clamp(21px,2.2vw,27px);position:relative;z-index:2;}
.cta-panel p{color:rgba(255,255,255,.88);font-size:15px;margin-top:12px;position:relative;z-index:2;}
.cta-form{position:relative;z-index:2;background:rgba(255,255,255,.96);border-radius:var(--radius);padding:22px;box-shadow:0 18px 40px rgba(8,16,40,.22);}
.field{margin-bottom:14px;}
.field label{display:block;font-size:13px;font-weight:700;color:var(--ink);margin-bottom:6px;}
.field input,.field select{
 width:100%;padding:11px 14px;border-radius:10px;border:1px solid var(--line);
 background:#fff;font-size:14.5px;color:var(--ink);transition:border-color .2s ease,box-shadow .2s ease;
}
.field input:focus,.field select:focus{
 outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(47,91,255,.14);
}
.btn-solid{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;width:100%;
 padding:13px 22px;border-radius:10px;background:var(--grad);color:#fff;
 font-size:15px;font-weight:800;box-shadow:0 10px 24px rgba(47,91,255,.30);
 transition:transform .2s ease,filter .2s ease,box-shadow .2s ease;
}
.btn-solid:hover{color:#fff;transform:translateY(-2px);filter:brightness(1.05);box-shadow:0 14px 30px rgba(47,91,255,.38);}
.btn-ghost{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:12px 24px;border-radius:10px;border:1px solid rgba(255,255,255,.52);
 color:#fff;font-size:15px;font-weight:700;background:rgba(255,255,255,.10);
 transition:background .2s ease,transform .2s ease,color .2s ease;
}
.btn-ghost:hover{background:rgba(255,255,255,.22);color:#fff;transform:translateY(-2px);}
.form-tip{font-size:12.5px;color:#7d8ba3;margin-top:10px;line-height:1.7;}
.form-msg{font-size:13.5px;font-weight:700;color:#0a8f6b;margin-top:10px;display:none;}

/* ---------- footer ---------- */
.site-footer{background:#0b1428;color:rgba(219,229,249,.78);padding:56px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.12);}
.site-footer .logo{color:#fff;margin-bottom:16px;}
.footer-brand p{font-size:14.5px;line-height:1.85;color:rgba(206,219,243,.72);max-width:430px;}
.footer-col h4{color:#fff;font-size:15px;font-weight:800;margin-bottom:14px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14.5px;color:rgba(206,219,243,.78);}
.footer-col a:hover{color:#fff;}
.footer-bottom{
 display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
 padding-top:22px;font-size:13.5px;color:rgba(190,205,233,.62);
}
.fb-links{display:flex;flex-wrap:wrap;gap:18px;}
.fb-links a{color:rgba(190,205,233,.72);font-size:13.5px;}
.fb-links a:hover{color:#fff;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
 .metrics-grid{grid-template-columns:repeat(2,1fr);}
 .card-grid,.news-grid{grid-template-columns:repeat(2,1fr);}
 .hero-inner{max-width:100%;}
 .cta-panel{grid-template-columns:1fr;padding:34px;gap:26px;}
 .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
 .footer-brand{grid-column:1/-1;}
}
@media (max-width:820px){
 .nav-toggle{display:inline-flex;}
 .nav-links{
  position:absolute;left:16px;right:16px;top:72px;flex-direction:column;align-items:stretch;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-l);padding:10px;gap:2px;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s ease;
 }
 .nav-links.open{opacity:1;visibility:visible;transform:translateY(0);}
 .nav-links a{color:var(--ink-2);font-size:15px;padding:11px 14px;}
 .nav-links a:hover{background:var(--brand-soft);color:var(--brand);}
 .nav-links a.active{background:var(--brand-soft);color:var(--brand);}
 .nav-cta{display:none;}
 .page-hero{padding:118px 0 62px;}
 .section{padding:52px 0;}
}
@media (max-width:640px){
 .metrics-grid,.card-grid,.news-grid,.assure-grid{grid-template-columns:1fr;}
 .section-head{margin-bottom:26px;}
 .hero-sub{font-size:15px;}
 .search-box{flex-wrap:wrap;padding:12px;}
 .search-box input{width:100%;padding:6px 0;}
 .search-box button{width:100%;}
 .quick-tags{gap:8px;}
 .quick-tags a{font-size:13px;padding:7px 13px;}
 .cta-panel{padding:26px 20px;border-radius:var(--radius);}
 .cta-form{padding:18px;}
 .footer-grid{grid-template-columns:1fr;}
 .footer-bottom{flex-direction:column;align-items:flex-start;}
 table.compare th,table.compare td{padding:13px 15px;font-size:14px;}
 .timeline{padding-left:26px;}
}

/* roulang page: category2 */
:root{
 --brand:#2f5bff;
 --brand-2:#7b3ff2;
 --brand-soft:#eef2ff;
 --accent:#0fb98b;
 --gold:#e8a10b;
 --ink:#0e1729;
 --ink-2:#20304a;
 --muted:#5c6b82;
 --line:#e4eaf3;
 --bg:#f5f7fb;
 --surface:#ffffff;
 --grad:linear-gradient(135deg,#2f5bff 0%,#7b3ff2 100%);
 --grad-soft:linear-gradient(135deg,rgba(47,91,255,.10),rgba(123,63,242,.10));
 --radius-s:8px;
 --radius:14px;
 --radius-l:20px;
 --shadow-s:0 2px 10px rgba(16,32,66,.06);
 --shadow-m:0 14px 34px rgba(16,32,66,.10);
 --shadow-l:0 26px 60px rgba(16,32,66,.16);
 --sp:28px;
 --maxw:1180px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
 margin:0;
 padding:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
 font-size:16px;
 line-height:1.78;
 color:var(--ink-2);
 background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-2);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--ink);line-height:1.32;letter-spacing:-.01em;}
p{margin:0;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:3px solid rgba(47,91,255,.45);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
 position:fixed;top:0;left:0;right:0;z-index:80;
 background:rgba(10,18,34,.18);
 backdrop-filter:blur(14px) saturate(140%);
 -webkit-backdrop-filter:blur(14px) saturate(140%);
 border-bottom:1px solid rgba(255,255,255,.16);
 transition:background .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.site-header.scrolled{
 background:rgba(255,255,255,.94);
 border-bottom-color:var(--line);
 box-shadow:0 8px 26px rgba(16,32,66,.10);
}
.nav-inner{height:64px;display:flex;align-items:center;justify-content:space-between;gap:18px;}
.logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:#fff;letter-spacing:.01em;}
.logo:hover{color:#fff;}
.logo-mark{
 width:32px;height:32px;border-radius:9px;background:var(--grad);
 display:grid;place-items:center;flex:none;box-shadow:0 6px 16px rgba(47,91,255,.36);
}
.logo-mark svg{width:18px;height:18px;stroke:#fff;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.logo-text small{display:block;font-size:11px;font-weight:500;letter-spacing:.16em;opacity:.72;line-height:1.2;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links a{
 display:inline-block;padding:8px 14px;border-radius:var(--radius-s);
 font-size:15px;font-weight:500;color:rgba(255,255,255,.88);
 transition:background .2s ease,color .2s ease;
}
.nav-links a:hover{background:rgba(255,255,255,.16);color:#fff;}
.nav-links a.active{background:rgba(255,255,255,.22);color:#fff;font-weight:700;}
.site-header.scrolled .logo{color:var(--ink);}
.site-header.scrolled .logo:hover{color:var(--brand);}
.site-header.scrolled .nav-links a{color:var(--ink-2);}
.site-header.scrolled .nav-links a:hover{background:var(--brand-soft);color:var(--brand);}
.site-header.scrolled .nav-links a.active{background:var(--brand-soft);color:var(--brand);}
.nav-cta{
 display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:10px;
 background:var(--grad);color:#fff;font-size:14px;font-weight:700;
 box-shadow:0 8px 20px rgba(47,91,255,.30);
 transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
}
.nav-cta:hover{color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(47,91,255,.38);filter:brightness(1.04);}
.nav-toggle{
 display:none;width:42px;height:42px;border-radius:10px;
 border:1px solid rgba(255,255,255,.34);align-items:center;justify-content:center;
 background:rgba(255,255,255,.10);
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#fff;border-radius:2px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.site-header.scrolled .nav-toggle{border-color:var(--line);background:#fff;}
.site-header.scrolled .nav-toggle span,
.site-header.scrolled .nav-toggle span::before,
.site-header.scrolled .nav-toggle span::after{background:var(--ink);}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:128px 0 72px;background:#0b1428;color:#fff;}
.hero-bg{position:absolute;inset:0;z-index:0;}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.42;}
.hero-bg::after{
 content:"";position:absolute;inset:0;
 background:
 radial-gradient(760px 420px at 12% 8%,rgba(47,91,255,.44),transparent 62%),
 radial-gradient(680px 420px at 88% 22%,rgba(123,63,242,.40),transparent 64%),
 linear-gradient(180deg,rgba(9,16,32,.74) 0%,rgba(9,16,32,.92) 100%);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.06fr .94fr;gap:44px;align-items:start;}
.hero-badge{
 display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
 background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.26);
 font-size:13px;font-weight:600;letter-spacing:.02em;color:#e7ecff;
}
.hero-badge i{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(15,185,139,.22);}
.hero h1{color:#fff;font-size:clamp(28px,3.3vw,42px);line-height:1.26;margin:20px 0 16px;}
.hero h1 em{
 font-style:normal;
 background:linear-gradient(120deg,#8fb2ff,#c9a6ff 70%);
 -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:16px;line-height:1.85;color:rgba(233,239,255,.88);max-width:600px;}
.hero-pain{
 margin:18px 0 0;padding:12px 16px;border-radius:12px;max-width:600px;
 background:rgba(232,161,11,.12);border:1px solid rgba(232,161,11,.38);
 font-size:14.5px;color:#ffe6b8;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.hero-tags span{
 font-size:13px;font-weight:600;padding:6px 13px;border-radius:999px;
 background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.24);color:#dfe7ff;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:13px 26px;border-radius:10px;font-size:15px;font-weight:700;
 transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 26px rgba(47,91,255,.32);}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px rgba(47,91,255,.44);}
.btn-ghost{background:rgba(255,255,255,.10);color:#fff;border:1px solid rgba(255,255,255,.36);}
.btn-ghost:hover{background:rgba(255,255,255,.20);color:#fff;transform:translateY(-2px);}
.btn-line{background:#fff;color:var(--brand);border:1px solid #c9d6f5;box-shadow:var(--shadow-s);}
.btn-line:hover{border-color:var(--brand);color:var(--brand-2);transform:translateY(-2px);}

/* ---------- hero demo panel ---------- */
.demo-panel{
 background:rgba(255,255,255,.08);
 border:1px solid rgba(255,255,255,.20);
 border-radius:var(--radius-l);
 padding:24px;
 box-shadow:0 24px 60px rgba(6,14,32,.45);
 backdrop-filter:blur(8px);
 -webkit-backdrop-filter:blur(8px);
}
.demo-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px;}
.demo-head h2{font-size:15px;color:#fff;letter-spacing:.02em;}
.demo-live{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;color:#bfe9d8;font-weight:600;}
.demo-live i{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(15,185,139,.20);}
.tile-row{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:20px;}
.tile{
 width:38px;height:50px;border-radius:8px;
 background:linear-gradient(180deg,#ffffff,#eef2fa);
 color:#1b2740;display:grid;place-items:center;
 font-size:13px;font-weight:700;
 border:1px solid rgba(255,255,255,.65);
 box-shadow:0 4px 10px rgba(4,10,24,.30);
}
.tile.win{background:linear-gradient(180deg,#fff8e6,#ffe6b0);color:#8a5b00;}
.demo-steps{display:grid;gap:11px;}
.demo-steps li{display:flex;gap:10px;font-size:13.5px;line-height:1.6;color:rgba(233,240,255,.9);}
.demo-steps b{color:#fff;}
.demo-index{
 flex:none;width:20px;height:20px;border-radius:6px;margin-top:2px;
 background:rgba(255,255,255,.16);color:#fff;font-size:12px;font-weight:700;
 display:grid;place-items:center;
}
.demo-result{
 margin-top:20px;padding:12px 14px;border-radius:10px;
 background:rgba(15,185,139,.14);border:1px solid rgba(15,185,139,.42);
 color:#c8f4e4;font-size:13.5px;display:flex;gap:10px;align-items:center;
}
.demo-result svg{width:18px;height:18px;flex:none;stroke:var(--accent);fill:none;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- sections ---------- */
.sec{padding:76px 0;position:relative;}
.sec-white{background:var(--surface);}
.sec-tint{background:linear-gradient(180deg,#f2f5fd 0%,#f7f9fe 100%);}
.sec-dark{background:#0b1428;color:#c9d6ee;}
.sec-head{max-width:780px;margin-bottom:34px;}
.kicker{
 display:inline-flex;align-items:center;gap:9px;
 font-size:12.5px;font-weight:800;letter-spacing:.16em;color:var(--brand);text-transform:uppercase;
}
.kicker::before{content:"";width:26px;height:2px;border-radius:2px;background:var(--grad);}
.kicker-light{color:#9fb6ff;}
.kicker-light::before{background:linear-gradient(135deg,#8fb2ff,#c9a6ff);}
.sec-head h2{font-size:clamp(22px,2.4vw,30px);margin:12px 0 12px;}
.sec-head p{color:var(--muted);font-size:15.5px;}
.sec-dark .sec-head h2{color:#fff;}
.sec-dark .sec-head p{color:#a9bbd9;}

/* ---------- stats ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.stat-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:24px 22px;box-shadow:var(--shadow-s);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-m);border-color:#c9d6f5;}
.stat-num{
 font-size:32px;font-weight:800;line-height:1.1;
 background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-label{font-size:15px;font-weight:700;color:var(--ink);margin-top:8px;}
.stat-desc{font-size:13.5px;color:var(--muted);margin-top:4px;}

/* ---------- cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:24px;box-shadow:var(--shadow-s);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-m);border-color:#c9d6f5;}
.card-icon{
 width:42px;height:42px;border-radius:12px;background:var(--grad-soft);
 display:grid;place-items:center;color:var(--brand);margin-bottom:14px;
}
.card-icon svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;}
.card h3{font-size:17px;margin-bottom:8px;}
.card p{font-size:14.5px;color:var(--muted);}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tag{
 font-size:12.5px;font-weight:600;padding:4px 10px;border-radius:999px;
 background:var(--brand-soft);color:#2a49c8;
}
.tag-green{background:rgba(15,185,139,.12);color:#0a8b68;}
.tag-gold{background:rgba(232,161,11,.14);color:#986c05;}

/* ---------- compare ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:38px;align-items:center;}
.compare-figure{
 border-radius:var(--radius-l);overflow:hidden;border:1px solid var(--line);
 box-shadow:var(--shadow-m);background:#fff;
}
.compare-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;}
.cmp-table{
 width:100%;border-collapse:collapse;background:#fff;
 border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
 box-shadow:var(--shadow-s);font-size:14.5px;
}
.cmp-table th,.cmp-table td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top;}
.cmp-table thead th{background:#f2f5fd;color:var(--ink);font-size:13.5px;font-weight:700;}
.cmp-table tbody tr:last-child td{border-bottom:0;}
.cmp-table td strong{color:var(--brand);}

/* ---------- timeline ---------- */
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.tl-item{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:22px;box-shadow:var(--shadow-s);position:relative;
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.tl-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-m);border-color:#c9d6f5;}
.tl-step{font-size:12.5px;font-weight:800;letter-spacing:.12em;color:var(--brand-2);}
.tl-item h3{font-size:16px;margin:8px 0 8px;}
.tl-item p{font-size:14px;color:var(--muted);}

/* ---------- posts ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.post-card{
 display:flex;flex-direction:column;gap:10px;
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:22px;box-shadow:var(--shadow-s);color:inherit;
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-m);border-color:#c9d6f5;color:inherit;}
.post-meta{display:flex;gap:12px;align-items:center;font-size:12.5px;color:var(--muted);}
.post-cat{
 font-weight:700;color:#2a49c8;background:var(--brand-soft);
 padding:3px 9px;border-radius:999px;font-size:12px;
}
.post-card h3{font-size:16px;line-height:1.55;}
.post-card p{font-size:14px;color:var(--muted);}
.empty{color:var(--muted);font-size:15px;padding:20px 0;}

/* ---------- support ---------- */
.support-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}
.support-item{
 display:flex;gap:14px;padding:22px;border-radius:var(--radius);
 background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
 transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.support-item:hover{background:rgba(255,255,255,.10);border-color:rgba(143,178,255,.45);transform:translateY(-3px);}
.support-item svg{width:22px;height:22px;flex:none;margin-top:3px;stroke:#8fb2ff;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.support-item h3{font-size:16px;color:#fff;margin-bottom:6px;}
.support-item p{font-size:14px;color:#a9bbd9;}

/* ---------- quick answers ---------- */
.quick-list{display:grid;gap:14px;}
.quick-item{
 display:flex;gap:16px;padding:20px 22px;background:var(--surface);
 border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-s);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.quick-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-m);border-color:#c9d6f5;}
.quick-num{
 flex:none;width:30px;height:30px;border-radius:9px;background:var(--grad);
 color:#fff;font-size:14px;font-weight:800;display:grid;place-items:center;
 box-shadow:0 6px 16px rgba(47,91,255,.28);
}
.quick-item h3{font-size:15.5px;margin-bottom:4px;}
.quick-item p{font-size:14px;color:var(--muted);}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;max-width:900px;}
.faq-item{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 box-shadow:var(--shadow-s);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:#c9d6f5;box-shadow:var(--shadow-m);}
.faq-item summary{
 list-style:none;cursor:pointer;padding:18px 22px;
 font-size:16px;font-weight:700;color:var(--ink);
 display:flex;justify-content:space-between;gap:16px;align-items:center;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
 content:"+";font-size:20px;font-weight:600;color:var(--brand);
 flex:none;transition:transform .2s ease;
}
.faq-item[open] summary::after{content:"–";}
.faq-body{padding:0 22px 20px;font-size:14.5px;color:var(--muted);}

/* ---------- cta / form ---------- */
.cta-sec{
 background:
 radial-gradient(720px 380px at 14% 10%,rgba(47,91,255,.45),transparent 62%),
 radial-gradient(660px 380px at 86% 30%,rgba(123,63,242,.42),transparent 64%),
 #0b1428;
 color:#dfe7f7;
}
.cta-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:42px;align-items:start;}
.cta-copy h2{color:#fff;font-size:clamp(22px,2.4vw,30px);margin:12px 0 14px;}
.cta-copy p{color:#b9c8e4;font-size:15.5px;}
.cta-list{display:grid;gap:10px;margin-top:22px;}
.cta-list li{display:flex;gap:10px;font-size:14.5px;color:#cddaef;}
.cta-list svg{width:17px;height:17px;flex:none;margin-top:4px;stroke:var(--accent);fill:none;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round;}
.cta-form{
 background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.20);
 border-radius:var(--radius-l);padding:26px;box-shadow:0 24px 60px rgba(6,14,32,.45);
 display:grid;gap:16px;
}
.cta-form label{display:grid;gap:7px;font-size:13.5px;font-weight:600;color:#d6e1f5;}
.cta-form input,.cta-form select{
 width:100%;padding:12px 14px;border-radius:10px;
 background:rgba(255,255,255,.94);border:1px solid rgba(255,255,255,.5);
 color:var(--ink);font-size:14.5px;
 transition:border-color .2s ease,box-shadow .2s ease;
}
.cta-form input::placeholder{color:#8b9ab3;}
.cta-form input:focus,.cta-form select:focus{
 outline:none;border-color:#8fb2ff;box-shadow:0 0 0 3px rgba(143,178,255,.32);
}
.cta-form .btn{width:100%;}
.form-note{font-size:12.5px;color:#9db0cf;text-align:center;}

/* ---------- footer ---------- */
.site-footer{background:#0b1428;color:#c3cee3;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:36px;padding-bottom:40px;}
.footer-brand .logo{color:#fff;margin-bottom:14px;}
.footer-brand p{font-size:14px;line-height:1.85;color:#9fb0cd;max-width:440px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:14px;}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:#a8b8d6;font-size:14px;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
 border-top:1px solid rgba(255,255,255,.12);
 padding:20px 0 28px;display:flex;justify-content:space-between;
 gap:14px;flex-wrap:wrap;font-size:13px;color:#8ba0c2;
}
.fb-links{display:flex;gap:16px;flex-wrap:wrap;}
.fb-links a{color:#a8b8d6;}
.fb-links a:hover{color:#fff;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
 .hero-inner{grid-template-columns:1fr;gap:34px;}
 .hero-sub,.hero-pain,.hero-tags{max-width:none;}
 .compare{grid-template-columns:1fr;gap:26px;}
 .stat-grid{grid-template-columns:repeat(2,1fr);}
 .card-grid,.post-grid{grid-template-columns:repeat(2,1fr);}
 .timeline{grid-template-columns:repeat(2,1fr);}
 .cta-inner{grid-template-columns:1fr;gap:30px;}
 .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:900px){
 .nav-links{
  position:absolute;top:64px;left:0;right:0;
  flex-direction:column;align-items:stretch;gap:4px;
  padding:14px 20px 18px;display:none;
  background:rgba(11,20,40,.97);
  border-top:1px solid rgba(255,255,255,.12);
  box-shadow:0 18px 34px rgba(6,14,32,.42);
 }
 .site-header.scrolled .nav-links{background:rgba(255,255,255,.98);border-top-color:var(--line);box-shadow:0 18px 34px rgba(16,32,66,.14);}
 .nav-links.open{display:flex;}
 .nav-links a{padding:11px 14px;}
 .nav-toggle{display:flex;}
 .nav-cta{display:none;}
 .support-grid{grid-template-columns:1fr;}
}
@media (max-width:768px){
 .sec{padding:56px 0;}
 .hero{padding:110px 0 56px;}
 .stat-grid{grid-template-columns:repeat(2,1fr);}
 .card-grid,.post-grid,.timeline{grid-template-columns:1fr;}
 .cmp-table{font-size:13.5px;}
 .cmp-table th,.cmp-table td{padding:11px 12px;}
 .footer-grid{grid-template-columns:1fr;gap:28px;}
}
@media (max-width:520px){
 .container{padding:0 18px;}
 .logo-text{font-size:16px;}
 .logo-text small{display:none;}
 .stat-grid{grid-template-columns:1fr;}
 .hero-actions{flex-direction:column;align-items:stretch;}
 .hero-actions .btn{width:100%;}
 .btn{padding:12px 20px;}
 .quick-item{flex-direction:column;gap:10px;}
 .footer-bottom{flex-direction:column;gap:10px;}
}

/* roulang page: category3 */
:root{
 --brand:#2f5bff;
 --brand-2:#7b3ff2;
 --brand-soft:#eef2ff;
 --accent:#0fb98b;
 --gold:#e8a10b;
 --ink:#0e1729;
 --ink-2:#20304a;
 --muted:#5c6b82;
 --line:#e4eaf3;
 --bg:#f5f7fb;
 --surface:#ffffff;
 --grad:linear-gradient(135deg,#2f5bff 0%,#7b3ff2 100%);
 --grad-soft:linear-gradient(135deg,rgba(47,91,255,.10),rgba(123,63,242,.10));
 --radius-s:8px;
 --radius:14px;
 --radius-l:20px;
 --shadow-s:0 2px 10px rgba(16,32,66,.06);
 --shadow-m:0 14px 34px rgba(16,32,66,.10);
 --shadow-l:0 26px 60px rgba(16,32,66,.16);
 --sp:28px;
 --maxw:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
 margin:0;padding:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
 font-size:16px;line-height:1.78;color:var(--ink-2);background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-2);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
 outline:3px solid rgba(47,91,255,.45);outline-offset:2px;border-radius:6px;
}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}

/* ---------- 导航 ---------- */
.site-header{
 position:fixed;top:0;left:0;right:0;z-index:80;
 background:rgba(10,18,34,.18);
 backdrop-filter:blur(14px) saturate(140%);
 -webkit-backdrop-filter:blur(14px) saturate(140%);
 border-bottom:1px solid rgba(255,255,255,.16);
 transition:background .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.site-header.scrolled{
 background:rgba(255,255,255,.95);
 border-bottom-color:var(--line);
 box-shadow:0 8px 26px rgba(16,32,66,.10);
}
.nav-inner{height:64px;display:flex;align-items:center;justify-content:space-between;gap:18px;}
.logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:#fff;letter-spacing:.01em;}
.logo:hover{color:#fff;}
.logo-mark{
 width:32px;height:32px;border-radius:9px;background:var(--grad);
 display:grid;place-items:center;flex:none;box-shadow:0 6px 16px rgba(47,91,255,.36);
}
.logo-mark svg{width:18px;height:18px;stroke:#fff;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.logo-text{display:block;line-height:1.15;}
.logo-text small{display:block;font-size:11px;font-weight:500;letter-spacing:.16em;opacity:.72;line-height:1.3;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links a{
 display:inline-block;padding:8px 14px;border-radius:var(--radius-s);
 font-size:15px;font-weight:500;color:rgba(255,255,255,.88);
 transition:background .2s ease,color .2s ease;
}
.nav-links a:hover{background:rgba(255,255,255,.16);color:#fff;}
.nav-links a.active{background:rgba(255,255,255,.22);color:#fff;font-weight:700;}
.site-header.scrolled .logo{color:var(--ink);}
.site-header.scrolled .logo:hover{color:var(--brand);}
.site-header.scrolled .nav-links a{color:var(--ink-2);}
.site-header.scrolled .nav-links a:hover{background:var(--brand-soft);color:var(--brand);}
.site-header.scrolled .nav-links a.active{background:var(--brand-soft);color:var(--brand);}
.nav-cta{
 display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:10px;
 background:var(--grad);color:#fff;font-size:14px;font-weight:700;
 box-shadow:0 8px 20px rgba(47,91,255,.30);
 transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
}
.nav-cta:hover{color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(47,91,255,.38);filter:brightness(1.04);}
.nav-toggle{
 display:none;width:42px;height:42px;border-radius:10px;
 border:1px solid rgba(255,255,255,.34);align-items:center;justify-content:center;
 background:rgba(255,255,255,.10);flex:none;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#fff;border-radius:2px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.site-header.scrolled .nav-toggle{border-color:var(--line);background:#fff;}
.site-header.scrolled .nav-toggle span,
.site-header.scrolled .nav-toggle span::before,
.site-header.scrolled .nav-toggle span::after{background:var(--ink);}

/* ---------- Hero ---------- */
.hero{
 position:relative;overflow:hidden;
 padding:128px 0 76px;color:#fff;background:#0b1428;
}
.hero-bg{position:absolute;inset:0;z-index:0;}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.40;}
.hero-bg::after{
 content:"";position:absolute;inset:0;
 background:
 radial-gradient(760px 420px at 12% 8%,rgba(47,91,255,.44),transparent 62%),
 radial-gradient(680px 420px at 88% 22%,rgba(123,63,242,.42),transparent 64%),
 linear-gradient(180deg,rgba(9,16,32,.74) 0%,rgba(9,16,32,.92) 100%);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:start;}
.hero-badge{
 display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
 background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.26);
 font-size:13px;font-weight:600;letter-spacing:.02em;color:#e7ecff;
}
.hero-badge i{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(15,185,139,.22);}
.hero h1{
 color:#fff;font-size:clamp(27px,3.3vw,41px);line-height:1.28;
 margin:20px 0 18px;letter-spacing:-.02em;font-weight:800;
}
.hero h1 em{
 font-style:normal;
 background:linear-gradient(120deg,#8fb2ff,#c9a6ff 72%);
 -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:16px;line-height:1.88;color:rgba(233,239,255,.86);max-width:640px;}
.check-list{margin:26px 0 0;display:grid;gap:11px;max-width:640px;}
.check-list li{
 display:flex;gap:12px;align-items:flex-start;font-size:15px;color:rgba(237,242,255,.93);
 padding:11px 16px;border-radius:12px;
 background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);
}
.check-list li b{color:#fff;font-weight:700;}
.check-list svg{width:18px;height:18px;flex:none;margin-top:3px;stroke:var(--accent);fill:none;stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:12px 26px;border-radius:10px;font-size:15px;font-weight:700;
 transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round;}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 26px rgba(47,91,255,.34);}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px rgba(47,91,255,.44);}
.btn-ghost{border:1px solid rgba(255,255,255,.44);color:#fff;background:rgba(255,255,255,.08);}
.btn-ghost:hover{color:#fff;background:rgba(255,255,255,.18);transform:translateY(-2px);}
.btn-outline{border:1px solid var(--line);color:var(--ink);background:#fff;box-shadow:var(--shadow-s);}
.btn-outline:hover{color:var(--brand);border-color:rgba(47,91,255,.4);transform:translateY(-2px);box-shadow:var(--shadow-m);}

.hero-panel{
 background:rgba(255,255,255,.97);border-radius:var(--radius-l);
 box-shadow:var(--shadow-l);overflow:hidden;color:var(--ink-2);
 border:1px solid rgba(255,255,255,.5);
}
.hero-panel-img{width:100%;height:168px;object-fit:cover;}
.panel-body{padding:22px 24px 26px;}
.panel-body h2{font-size:17px;color:var(--ink);letter-spacing:.01em;margin-bottom:4px;}
.panel-body p{font-size:13px;color:var(--muted);line-height:1.7;margin-bottom:14px;}
.panel-list{display:grid;gap:10px;}
.panel-list li{
 display:flex;align-items:center;justify-content:space-between;gap:12px;
 padding:10px 14px;border-radius:10px;background:#f7f9fd;border:1px solid var(--line);
 font-size:14px;color:var(--ink-2);
}
.panel-list b{color:var(--brand);font-weight:800;font-variant-numeric:tabular-nums;}
.panel-note{margin-top:14px;font-size:12.5px;color:var(--muted);display:flex;align-items:center;gap:8px;}
.panel-note svg{width:15px;height:15px;flex:none;stroke:var(--accent);fill:none;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- 通用板块 ---------- */
.section{padding:74px 0;position:relative;}
.section--alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section--soft{background:linear-gradient(180deg,#f5f7fb 0%,#eef2ff 100%);}
.section-head{max-width:760px;margin-bottom:38px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
 letter-spacing:.14em;color:var(--brand);text-transform:uppercase;margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:3px;border-radius:2px;background:var(--grad);}
.section-title{font-size:clamp(22px,2.4vw,30px);line-height:1.36;color:var(--ink);letter-spacing:-.01em;font-weight:800;}
.section-desc{margin-top:12px;font-size:15.5px;color:var(--muted);line-height:1.85;}

/* ---------- 指标看板 ---------- */
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.metric-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:24px 22px;box-shadow:var(--shadow-s);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-m);border-color:rgba(47,91,255,.34);}
.metric-card .num{
 font-size:30px;font-weight:800;letter-spacing:-.02em;line-height:1.15;
 background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
 font-variant-numeric:tabular-nums;
}
.metric-card .num small{font-size:14px;font-weight:700;margin-left:2px;}
.metric-card h3{font-size:15px;color:var(--ink);margin:10px 0 6px;font-weight:700;}
.metric-card p{font-size:13.5px;color:var(--muted);line-height:1.72;}

/* ---------- 服务矩阵 ---------- */
.matrix-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.feature-card{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:26px 24px;box-shadow:var(--shadow-s);display:flex;flex-direction:column;gap:12px;
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-m);border-color:rgba(47,91,255,.34);}
.ico-box{
 width:44px;height:44px;border-radius:12px;background:var(--grad-soft);
 display:grid;place-items:center;border:1px solid rgba(47,91,255,.14);flex:none;
}
.ico-box svg{width:21px;height:21px;fill:none;stroke:var(--brand);stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;}
.feature-card h3{font-size:17px;color:var(--ink);font-weight:700;letter-spacing:.01em;}
.feature-card p{font-size:14.5px;color:var(--muted);line-height:1.8;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:6px;}
.tag{
 display:inline-flex;align-items:center;padding:4px 11px;border-radius:999px;
 font-size:12.5px;font-weight:600;color:var(--brand);
 background:var(--brand-soft);border:1px solid rgba(47,91,255,.14);
}
.tag--green{color:#0a8f6c;background:rgba(15,185,139,.10);border-color:rgba(15,185,139,.22);}
.tag--gold{color:#9a6a00;background:rgba(232,161,11,.12);border-color:rgba(232,161,11,.26);}

/* ---------- 结果对比 ---------- */
.compare-wrap{
 display:grid;grid-template-columns:1fr 1fr;gap:24px;
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-l);
 padding:30px;box-shadow:var(--shadow-s);
}
.compare-col h3{
 display:flex;align-items:center;gap:10px;font-size:17px;color:var(--ink);
 padding-bottom:14px;border-bottom:1px dashed var(--line);margin-bottom:16px;font-weight:700;
}
.compare-col h3 span.dot{width:9px;height:9px;border-radius:50%;flex:none;background:#c0cadb;}
.compare-col.is-good h3 span.dot{background:var(--accent);}
.compare-col.is-bad h3 span.dot{background:#e05a6a;}
.compare-col li{
 position:relative;padding-left:24px;font-size:14.5px;color:var(--ink-2);
 line-height:1.8;margin-bottom:12px;
}
.compare-col li::before{
 content:"";position:absolute;left:2px;top:11px;width:8px;height:8px;border-radius:2px;
 background:#cfd8e6;
}
.compare-col.is-good li::before{background:var(--accent);}
.compare-col.is-bad li::before{background:#e8a9b2;}
.compare-note{
 grid-column:1 / -1;margin-top:6px;padding:16px 20px;border-radius:12px;
 background:var(--brand-soft);border:1px solid rgba(47,91,255,.14);
 font-size:14px;color:var(--ink-2);line-height:1.8;
}
.compare-note b{color:var(--brand);}

/* ---------- 里程碑 ---------- */
.roadmap{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;counter-reset:step;}
.step{
 position:relative;background:var(--surface);border:1px solid var(--line);
 border-radius:var(--radius);padding:24px 20px 22px;box-shadow:var(--shadow-s);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-m);border-color:rgba(123,63,242,.32);}
.step::before{
 counter-increment:step;content:"0" counter(step);
 display:block;font-size:13px;font-weight:800;letter-spacing:.14em;
 color:var(--brand-2);margin-bottom:10px;
}
.step h3{font-size:15.5px;color:var(--ink);font-weight:700;margin-bottom:8px;}
.step p{font-size:13.5px;color:var(--muted);line-height:1.75;}

/* ---------- 资讯列表 ---------- */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:34px;}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.news-card{
 display:flex;flex-direction:column;gap:12px;
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:24px 22px;box-shadow:var(--shadow-s);color:var(--ink-2);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-m);border-color:rgba(47,91,255,.34);color:var(--ink-2);}
.news-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:12.5px;color:var(--muted);}
.news-meta .cat{
 padding:3px 10px;border-radius:999px;background:var(--brand-soft);
 color:var(--brand);font-weight:600;font-size:12px;
}
.news-card h3{font-size:16.5px;line-height:1.55;color:var(--ink);font-weight:700;}
.news-card p{font-size:14px;color:var(--muted);line-height:1.78;}
.news-more{margin-top:8px;display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:700;color:var(--brand);}
.news-card:hover .news-more{color:var(--brand-2);}
.empty-tip{
 grid-column:1 / -1;padding:44px 24px;text-align:center;border-radius:var(--radius);
 background:var(--surface);border:1px dashed var(--line);color:var(--muted);font-size:15px;
}

/* ---------- 平台保障 ---------- */
.assure-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.assure-item{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:24px 22px;box-shadow:var(--shadow-s);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.assure-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-m);border-color:rgba(15,185,139,.32);}
.assure-item h3{font-size:15.5px;color:var(--ink);font-weight:700;margin:12px 0 8px;}
.assure-item p{font-size:13.5px;color:var(--muted);line-height:1.75;}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:900px;}
.faq-list details{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:0;box-shadow:var(--shadow-s);overflow:hidden;
 transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-list details[open]{border-color:rgba(47,91,255,.32);box-shadow:var(--shadow-m);}
.faq-list summary{
 list-style:none;cursor:pointer;padding:20px 54px 20px 24px;position:relative;
 font-size:15.5px;font-weight:700;color:var(--ink);line-height:1.6;
}
.faq-list summary::-webkit-details-marker{display:none;}
.faq-list summary::after{
 content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
 width:26px;height:26px;line-height:24px;text-align:center;border-radius:8px;
 background:var(--brand-soft);color:var(--brand);font-size:17px;font-weight:700;
 transition:transform .2s ease,background .2s ease;
}
.faq-list details[open] summary::after{content:"−";background:var(--brand);color:#fff;}
.faq-list .faq-body{padding:0 24px 22px;font-size:14.5px;color:var(--muted);line-height:1.85;}

/* ---------- 转化表单 ---------- */
.cta-panel{
 display:grid;grid-template-columns:.92fr 1.08fr;gap:44px;align-items:center;
 background:var(--grad);border-radius:var(--radius-l);padding:46px 44px;
 box-shadow:var(--shadow-l);color:#fff;position:relative;overflow:hidden;
}
.cta-panel::after{
 content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;
 background:rgba(255,255,255,.12);
}
.cta-copy{position:relative;z-index:2;}
.cta-copy h2{font-size:clamp(22px,2.3vw,28px);line-height:1.4;color:#fff;font-weight:800;letter-spacing:-.01em;}
.cta-copy p{margin-top:14px;font-size:15px;line-height:1.85;color:rgba(240,245,255,.9);}
.cta-copy ul{margin-top:20px;display:grid;gap:10px;}
.cta-copy li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:rgba(240,245,255,.94);}
.cta-copy li svg{width:17px;height:17px;flex:none;margin-top:4px;stroke:#c7f6e6;fill:none;stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round;}
.form-card{
 position:relative;z-index:2;background:#fff;border-radius:var(--radius-l);
 padding:28px 26px;box-shadow:0 20px 46px rgba(9,16,32,.22);
}
.form-card h3{font-size:17px;color:var(--ink);font-weight:800;margin-bottom:6px;}
.form-card .form-tip{font-size:13px;color:var(--muted);margin-bottom:18px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.field{display:flex;flex-direction:column;gap:6px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:13px;font-weight:600;color:var(--ink-2);}
.field input,.field select,.field textarea{
 width:100%;padding:11px 14px;border-radius:10px;border:1px solid var(--line);
 background:#f9fbfe;font-size:14px;color:var(--ink);min-height:44px;
 transition:border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:96px;resize:vertical;line-height:1.7;}
.field input:hover,.field select:hover,.field textarea:hover{border-color:#c9d6ea;}
.field input:focus,.field select:focus,.field textarea:focus{
 background:#fff;border-color:rgba(47,91,255,.55);
 box-shadow:0 0 0 3px rgba(47,91,255,.12);outline:none;
}
.form-card .btn{width:100%;margin-top:16px;}
.form-msg{margin-top:12px;font-size:13px;color:var(--accent);font-weight:600;min-height:18px;}

/* ---------- 页脚 ---------- */
.site-footer{background:#0b1428;color:rgba(226,234,248,.78);padding:62px 0 26px;border-top:1px solid rgba(255,255,255,.08);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:44px;padding-bottom:38px;}
.footer-brand .logo{color:#fff;margin-bottom:16px;}
.footer-brand .logo:hover{color:#fff;}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(206,218,238,.72);max-width:420px;}
.footer-col h4{font-size:15px;color:#fff;font-weight:700;margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:rgba(206,218,238,.78);transition:color .2s ease,padding-left .2s ease;}
.footer-col a:hover{color:#fff;padding-left:4px;}
.footer-bottom{
 border-top:1px solid rgba(255,255,255,.10);padding-top:22px;
 display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
 font-size:13px;color:rgba(180,196,222,.72);
}
.fb-links{display:flex;gap:18px;flex-wrap:wrap;}
.fb-links a{color:rgba(206,218,238,.78);}
.fb-links a:hover{color:#fff;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
 .hero-inner{grid-template-columns:1fr;gap:36px;}
 .hero-panel{max-width:560px;}
 .metrics-grid{grid-template-columns:repeat(2,1fr);}
 .matrix-grid{grid-template-columns:repeat(2,1fr);}
 .roadmap{grid-template-columns:repeat(2,1fr);}
 .news-grid{grid-template-columns:repeat(2,1fr);}
 .assure-grid{grid-template-columns:repeat(2,1fr);}
 .cta-panel{grid-template-columns:1fr;padding:36px 30px;gap:30px;}
 .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
 .footer-brand{grid-column:1 / -1;}
 .nav-links{gap:2px;}
 .nav-links a{padding:8px 10px;font-size:14px;}
}
@media (max-width:768px){
 .section{padding:56px 0;}
 .hero{padding:108px 0 60px;}
 .nav-toggle{display:flex;}
 .nav-cta{display:none;}
 .nav-links{
  position:absolute;top:64px;left:0;right:0;
  flex-direction:column;align-items:stretch;gap:4px;
  background:rgba(255,255,255,.98);
  border-bottom:1px solid var(--line);
  box-shadow:0 18px 36px rgba(16,32,66,.14);
  padding:12px 18px 18px;display:none;
 }
 .nav-links.open{display:flex;}
 .nav-links a{color:var(--ink-2);padding:12px 14px;font-size:15px;border-radius:10px;}
 .nav-links a:hover{background:var(--brand-soft);color:var(--brand);}
 .nav-links a.active{background:var(--brand-soft);color:var(--brand);font-weight:700;}
 .compare-wrap{grid-template-columns:1fr;padding:24px 20px;}
 .news-head{flex-direction:column;align-items:flex-start;gap:14px;}
 .cta-panel{padding:30px 22px;}
 .form-grid{grid-template-columns:1fr;}
 .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px;}
}
@media (max-width:520px){
 .container{padding:0 18px;}
 .metrics-grid,.matrix-grid,.roadmap,.news-grid,.assure-grid{grid-template-columns:1fr;}
 .hero h1{font-size:26px;}
 .hero-actions{flex-direction:column;align-items:stretch;}
 .btn{width:100%;}
 .hero-panel-img{height:150px;}
 .footer-grid{grid-template-columns:1fr;}
 .metric-card .num{font-size:26px;}
 .faq-list summary{padding:16px 48px 16px 18px;font-size:15px;}
 .faq-list .faq-body{padding:0 18px 18px;}
}
@media (prefers-reduced-motion:reduce){
 *{transition:none !important;animation:none !important;}
 html{scroll-behavior:auto;}
}