/* roulang page: index */
:root{
  --ink:#0a1020;
  --ink-2:#101a2e;
  --ink-3:#17243c;
  --paper:#f5f6f9;
  --card:#ffffff;
  --line:#e2e7ef;
  --line-soft:#edf0f6;
  --text:#131a26;
  --muted:#5c6a7e;
  --muted-dark:#a3b2c6;
  --brand:#c9a24a;
  --brand-strong:#b78d33;
  --brand-soft:rgba(201,162,74,.14);
  --teal:#1f7a6c;
  --danger:#b4472f;
  --radius:16px;
  --radius-sm:10px;
  --radius-xs:8px;
  --shadow:0 10px 30px rgba(11,18,32,.07);
  --shadow-lg:0 26px 60px rgba(11,18,32,.14);
  --max:1160px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--paper);
  color:var(--text);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,transform .2s ease;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.32;font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;}
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.9);
  backdrop-filter:saturate(180%) blur(12px);
  -webkit-backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:74px;}
.brand{display:inline-flex;align-items:center;gap:12px;min-width:0;}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;flex:0 0 42px;border-radius:12px;
  background:var(--ink);color:var(--brand);
  font-size:15px;font-weight:700;letter-spacing:.04em;
}
.brand-name{display:flex;flex-direction:column;line-height:1.2;min-width:0;}
.brand-name strong{font-size:17px;font-weight:700;letter-spacing:.01em;color:var(--ink);}
.brand-name em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.14em;}
.nav-toggle{
  display:none;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-xs);width:42px;height:42px;color:var(--ink);
}
.nav-collapse{display:block;}
.nav-list{display:flex;align-items:center;gap:6px;}
.nav-link{
  display:inline-block;padding:9px 16px;border-radius:999px;
  font-size:15px;color:#2b3648;font-weight:500;
}
.nav-link:hover{background:var(--brand-soft);color:#8c6d20;}
.nav-link.active{background:var(--ink);color:#fff;}
.nav-link.active:hover{background:var(--ink-2);color:#fff;}
.nav-cta{
  display:inline-block;margin-left:8px;padding:10px 22px;border-radius:999px;
  background:var(--brand);color:#161006;font-weight:600;font-size:15px;
}
.nav-cta:hover{background:var(--brand-strong);color:#161006;transform:translateY(-1px);}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;color:#e9eff8;
  padding:84px 0 76px;
  background:radial-gradient(1100px 460px at 50% -12%, #22354f 0%, #0d1728 58%, #070c16 100%);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:66px 66px;
  -webkit-mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 74%);
  mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 74%);
}
.hero-inner{position:relative;max-width:900px;margin:0 auto;text-align:center;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 16px;border-radius:999px;
  border:1px solid rgba(201,162,74,.42);
  background:rgba(201,162,74,.1);
  color:#e6cd93;font-size:13px;letter-spacing:.05em;
}
.hero-eyebrow i{font-size:8px;}
.hero-title{
  margin:26px 0 0;
  font-size:clamp(28px,4.1vw,50px);
  line-height:1.24;font-weight:700;letter-spacing:-.02em;
  color:#fff;
}
.hero-text{
  margin:22px auto 0;max-width:760px;
  color:#b8c6d8;font-size:16px;line-height:1.85;
}
.hero-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-top:34px;}
.btn-primary{
  display:inline-flex;align-items:center;gap:9px;
  padding:14px 30px;border-radius:var(--radius-sm);border:1px solid var(--brand);
  background:var(--brand);color:#161006;font-size:15px;font-weight:600;
}
.btn-primary:hover{background:#dcb75f;border-color:#dcb75f;color:#161006;transform:translateY(-2px);box-shadow:0 12px 26px rgba(201,162,74,.26);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:9px;
  padding:14px 30px;border-radius:var(--radius-sm);
  border:1px solid rgba(255,255,255,.3);background:transparent;color:#e9eff8;font-size:15px;font-weight:500;
}
.btn-ghost:hover{background:rgba(255,255,255,.09);border-color:rgba(255,255,255,.5);color:#fff;transform:translateY(-2px);}
.hero-note{
  margin-top:30px;display:flex;flex-wrap:wrap;justify-content:center;gap:10px 26px;
  color:#8fa2ba;font-size:13.5px;
}
.hero-note span{display:inline-flex;align-items:center;gap:8px;}
.hero-note i{color:var(--brand);font-size:12px;}

/* ---------- section base ---------- */
.section{padding:74px 0;}
.section--alt{background:#fff;}
.section--dark{background:var(--ink);color:#dbe4f0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:36px;margin-bottom:38px;}
.section-head .head-main{max-width:620px;min-width:0;}
.section-kicker{
  display:inline-block;font-size:12.5px;letter-spacing:.16em;
  color:var(--brand-strong);font-weight:600;margin-bottom:12px;
}
.section-title{font-size:clamp(22px,2.4vw,30px);color:var(--ink);}
.section-desc{margin-top:14px;color:var(--muted);font-size:15.5px;line-height:1.85;}
.section-head .head-side{max-width:420px;min-width:0;color:var(--muted);font-size:15px;line-height:1.85;}
.section--dark .section-title{color:#fff;}
.section--dark .section-desc{color:var(--muted-dark);}
.section--dark .section-kicker{color:var(--brand);}

/* ---------- metrics ---------- */
.metric-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
}
.metric-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  min-width:0;
}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d6dce8;}
.metric-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:10px;background:var(--brand-soft);color:var(--brand-strong);
  font-size:16px;margin-bottom:16px;
}
.metric-card h3{font-size:16.5px;color:var(--ink);}
.metric-card p{margin-top:9px;color:var(--muted);font-size:14.5px;line-height:1.8;}

/* ---------- matrix ---------- */
.matrix-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.matrix-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;min-width:0;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.matrix-card::after{
  content:"";position:absolute;left:24px;right:24px;top:0;height:3px;border-radius:0 0 4px 4px;
  background:var(--brand);opacity:0;transition:opacity .22s ease;
}
.matrix-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d6dce8;}
.matrix-card:hover::after{opacity:1;}
.matrix-card h3{font-size:17px;color:var(--ink);display:flex;align-items:center;gap:10px;}
.matrix-card h3 i{font-size:14px;color:var(--brand-strong);}
.matrix-card p{margin-top:12px;color:var(--muted);font-size:14.5px;line-height:1.8;}

/* ---------- download ---------- */
.download-panel{
  background:linear-gradient(135deg,#111d31 0%,#0a1322 100%);
  border:1px solid rgba(255,255,255,.09);
  border-radius:22px;padding:46px 44px;color:#dbe4f0;
  box-shadow:var(--shadow-lg);
}
.download-title{font-size:clamp(21px,2.3vw,28px);color:#fff;}
.download-desc{margin-top:14px;max-width:720px;color:#aebdd0;font-size:15px;line-height:1.85;}
.dl-buttons{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:32px;}
.dl-btn{
  display:flex;align-items:center;gap:14px;
  padding:18px 20px;border-radius:var(--radius-sm);
  border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.05);
  color:#eef3fa;min-width:0;
}
.dl-btn:hover{background:rgba(201,162,74,.16);border-color:rgba(201,162,74,.6);color:#fff;transform:translateY(-2px);}
.dl-btn i{font-size:22px;color:var(--brand);flex:0 0 auto;}
.dl-btn .dl-text{display:flex;flex-direction:column;min-width:0;}
.dl-btn .dl-text strong{font-size:15.5px;font-weight:600;}
.dl-btn .dl-text span{font-size:12.5px;color:#93a5bc;}
.download-tip{margin-top:22px;color:#8ea0b8;font-size:13px;line-height:1.8;}

/* ---------- compare ---------- */
.compare-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.compare-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 24px;min-width:0;display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease;
}
.compare-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);}
.compare-card.featured{border-color:rgba(201,162,74,.6);box-shadow:0 16px 40px rgba(201,162,74,.14);}
.compare-tag{
  display:inline-block;align-self:flex-start;padding:4px 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-strong);font-size:12px;font-weight:600;letter-spacing:.05em;
}
.compare-card h3{margin-top:16px;font-size:18px;color:var(--ink);}
.compare-list{margin-top:18px;display:flex;flex-direction:column;gap:12px;}
.compare-list li{display:flex;gap:10px;font-size:14.5px;color:var(--muted);line-height:1.75;}
.compare-list li i{color:var(--brand-strong);font-size:12px;margin-top:6px;flex:0 0 auto;}

/* ---------- steps ---------- */
.steps-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:18px;}
.step{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 20px;min-width:0;transition:transform .22s ease,box-shadow .22s ease;
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow);}
.step-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:50%;
  background:var(--ink);color:var(--brand);font-size:13.5px;font-weight:700;margin-bottom:16px;
}
.step h3{font-size:15.5px;color:var(--ink);}
.step p{margin-top:10px;color:var(--muted);font-size:14px;line-height:1.78;}

/* ---------- fees ---------- */
.fee-layout{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:48px;align-items:start;}
.fee-list{display:flex;flex-direction:column;gap:16px;}
.fee-item{
  display:flex;gap:18px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:22px 24px;min-width:0;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.fee-item:hover{border-color:#d6dce8;box-shadow:var(--shadow);}
.fee-num{font-size:15px;font-weight:700;color:var(--brand-strong);flex:0 0 auto;letter-spacing:.05em;}
.fee-item h3{font-size:16px;color:var(--ink);}
.fee-item p{margin-top:8px;color:var(--muted);font-size:14.5px;line-height:1.8;}

/* ---------- news ---------- */
.news-layout{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:34px;align-items:start;}
.news-list{display:flex;flex-direction:column;gap:14px;}
.news-item{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 24px;min-width:0;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-item:hover{transform:translateX(4px);box-shadow:var(--shadow);border-color:#d6dce8;}
.news-meta{display:flex;flex-wrap:wrap;gap:12px;align-items:center;font-size:12.5px;color:var(--muted);}
.news-cat{padding:3px 10px;border-radius:999px;background:var(--brand-soft);color:var(--brand-strong);font-weight:600;}
.news-item h3{margin-top:12px;font-size:16.5px;color:var(--ink);line-height:1.5;}
.news-item p{margin-top:9px;color:var(--muted);font-size:14.5px;line-height:1.78;}
.pick-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;}
.pick-panel h3{font-size:16px;color:var(--ink);padding-bottom:14px;border-bottom:1px solid var(--line-soft);}
.pick-list{margin-top:6px;display:flex;flex-direction:column;}
.pick-list li{border-bottom:1px dashed var(--line-soft);}
.pick-list li:last-child{border-bottom:0;}
.pick-list a{display:block;padding:14px 0;font-size:14.5px;color:#2b3648;line-height:1.7;}
.pick-list a:hover{color:var(--brand-strong);}
.empty-note{color:var(--muted);font-size:14.5px;padding:18px 0;}

/* ---------- guard ---------- */
.guard-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.guard-card{
  display:flex;gap:16px;padding:24px;border-radius:var(--radius);
  background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.1);min-width:0;
  transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.guard-card:hover{background:rgba(255,255,255,.08);border-color:rgba(201,162,74,.45);transform:translateY(-3px);}
.guard-card i{color:var(--brand);font-size:17px;margin-top:4px;flex:0 0 auto;}
.guard-card h3{font-size:16px;color:#fff;}
.guard-card p{margin-top:8px;color:var(--muted-dark);font-size:14.5px;line-height:1.8;}

/* ---------- quick answers ---------- */
.qa-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.qa-card{
  background:#fff;border:1px solid var(--line);border-left:3px solid var(--brand);
  border-radius:var(--radius);padding:24px;min-width:0;transition:box-shadow .2s ease,transform .2s ease;
}
.qa-card:hover{box-shadow:var(--shadow);transform:translateY(-3px);}
.qa-card h3{font-size:15.5px;color:var(--ink);}
.qa-card p{margin-top:10px;color:var(--muted);font-size:14.5px;line-height:1.8;}

/* ---------- audience ---------- */
.audience-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.audience-card{border-radius:var(--radius);padding:30px 28px;min-width:0;border:1px solid var(--line);background:#fff;}
.audience-card.no{background:#fbfbfc;}
.audience-card h3{display:flex;align-items:center;gap:10px;font-size:17.5px;color:var(--ink);}
.audience-card h3 i{font-size:15px;}
.audience-card.yes h3 i{color:var(--teal);}
.audience-card.no h3 i{color:var(--danger);}
.audience-list{margin-top:18px;display:flex;flex-direction:column;gap:12px;}
.audience-list li{display:flex;gap:10px;font-size:14.5px;color:var(--muted);line-height:1.78;}
.audience-list li i{font-size:11px;margin-top:7px;flex:0 0 auto;color:#93a1b3;}

/* ---------- channel ---------- */
.channel-card{
  display:flex;align-items:center;justify-content:space-between;gap:26px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:32px;min-width:0;transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.channel-card:hover{box-shadow:var(--shadow);transform:translateY(-3px);border-color:rgba(201,162,74,.55);}
.channel-card .channel-body{min-width:0;}
.channel-card h3{font-size:19px;color:var(--ink);}
.channel-card p{margin-top:10px;color:var(--muted);font-size:14.5px;line-height:1.8;max-width:680px;}
.channel-link{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:9px;
  padding:12px 26px;border-radius:var(--radius-sm);
  background:var(--ink);color:#fff;font-size:14.5px;font-weight:600;
}
.channel-link:hover{background:var(--brand);color:#161006;}

/* ---------- risk ---------- */
.risk-box{
  background:#1a1208;border:1px solid rgba(180,71,47,.4);border-radius:22px;
  padding:42px 40px;color:#e7dcd3;
}
.risk-box h2{color:#f5e7dd;font-size:clamp(20px,2.2vw,26px);}
.risk-box .risk-intro{margin-top:14px;color:#c3b3a6;font-size:15px;line-height:1.85;max-width:820px;}
.risk-list{margin-top:26px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.risk-list li{display:flex;gap:12px;font-size:14.5px;color:#d9c9bb;line-height:1.8;min-width:0;}
.risk-list li i{color:#d98a63;font-size:12px;margin-top:7px;flex:0 0 auto;}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:920px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:0 24px;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:rgba(201,162,74,.6);box-shadow:var(--shadow);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 30px 20px 0;position:relative;
  font-size:16px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"\002b";position:absolute;right:0;top:50%;transform:translateY(-50%);
  font-size:18px;color:var(--brand-strong);font-weight:400;transition:transform .2s ease;
}
.faq-item[open] summary::after{content:"\2212";}
.faq-item .faq-body{padding:0 0 22px;color:var(--muted);font-size:14.8px;line-height:1.85;}

/* ---------- lead form ---------- */
.lead-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px;align-items:start;}
.lead-points{margin-top:24px;display:flex;flex-direction:column;gap:14px;}
.lead-points li{display:flex;gap:12px;color:var(--muted);font-size:14.5px;line-height:1.8;}
.lead-points li i{color:var(--brand-strong);font-size:12px;margin-top:7px;flex:0 0 auto;}
.lead-form{background:#fff;border:1px solid var(--line);border-radius:20px;padding:32px;box-shadow:var(--shadow);}
.form-row{margin-bottom:18px;min-width:0;}
.form-row label{display:block;font-size:13.5px;font-weight:600;color:#2b3648;margin-bottom:8px;}
.form-control,.form-select{
  width:100%;padding:12px 14px;border-radius:var(--radius-xs);
  border:1px solid var(--line);background:#fbfbfd;color:var(--text);font-size:14.5px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.form-control:focus,.form-select:focus{
  outline:none;border-color:var(--brand);background:#fff;
  box-shadow:0 0 0 3px rgba(201,162,74,.16);
}
textarea.form-control{resize:vertical;min-height:96px;}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.submit-btn{
  width:100%;padding:14px 20px;border-radius:var(--radius-sm);border:1px solid var(--brand);
  background:var(--brand);color:#161006;font-size:15px;font-weight:600;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.submit-btn:hover{background:#dcb75f;border-color:#dcb75f;transform:translateY(-2px);box-shadow:0 12px 26px rgba(201,162,74,.24);}
.form-note{margin-top:14px;font-size:12.5px;color:var(--muted);line-height:1.75;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#9fb0c6;padding:60px 0 0;}
.footer-grid{
  display:grid;grid-template-columns:minmax(0,1.6fr) repeat(3,minmax(0,1fr));
  gap:40px;padding-bottom:44px;
}
.footer-brand .footer-logo{display:inline-flex;align-items:center;gap:12px;}
.footer-brand .footer-logo strong{font-size:16px;color:#fff;font-weight:700;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:#8ea0b8;max-width:400px;}
.footer-col h3{font-size:14px;color:#fff;letter-spacing:.05em;margin-bottom:16px;font-weight:600;}
.footer-col li{margin-bottom:11px;}
.footer-col a{font-size:14px;color:#9fb0c6;}
.footer-col a:hover{color:var(--brand);}
.footer-links{border-top:1px solid rgba(255,255,255,.09);padding:28px 0 26px;}
.footer-links-title{font-size:14px;color:#fff;font-weight:600;letter-spacing:.05em;margin-bottom:16px;}
.friend-links{display:flex;flex-wrap:wrap;gap:10px;}
.friend-links a{
  display:inline-block;padding:6px 14px;border-radius:999px;
  border:1px solid rgba(255,255,255,.13);font-size:13px;color:#a7b6ca;
}
.friend-links a:hover{color:var(--brand);border-color:rgba(201,162,74,.6);background:rgba(201,162,74,.08);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.09);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:#7b8ba1;
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .section{padding:60px 0;}
  .hero{padding:68px 0 62px;}
  .metric-grid,.matrix-grid,.compare-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
  .news-layout,.fee-layout,.lead-layout{grid-template-columns:minmax(0,1fr);gap:34px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;}
  .section-head .head-side{max-width:none;}
}
@media (max-width:991px){
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-collapse{width:100%;}
  .nav-list{flex-direction:column;align-items:stretch;gap:6px;padding:14px 0 20px;}
  .nav-link{padding:12px 16px;border-radius:var(--radius-xs);}
  .nav-cta{margin:6px 0 0;text-align:center;padding:13px 22px;}
  .nav-inner{flex-wrap:wrap;padding-top:14px;padding-bottom:14px;}
}
@media (max-width:768px){
  .hero{padding:56px 0 52px;}
  .hero-text{font-size:15px;}
  .hero-actions{gap:12px;}
  .btn-primary,.btn-ghost{padding:13px 24px;font-size:14.5px;}
  .metric-grid,.matrix-grid,.compare-grid,.guard-grid,.qa-grid,.audience-grid,.risk-list,.dl-buttons{grid-template-columns:minmax(0,1fr);}
  .steps-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .download-panel{padding:34px 24px;border-radius:18px;}
  .risk-box{padding:32px 24px;}
  .channel-card{flex-direction:column;align-items:flex-start;gap:20px;}
  .channel-link{width:100%;justify-content:center;}
  .form-grid{grid-template-columns:minmax(0,1fr);}
  .lead-form{padding:26px 22px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
}
@media (max-width:520px){
  .wrap{padding:0 18px;}
  .section{padding:48px 0;}
  .hero-title{font-size:26px;}
  .brand-name strong{font-size:15.5px;}
  .brand-name em{font-size:11px;letter-spacing:.1em;}
  .steps-grid{grid-template-columns:minmax(0,1fr);}
  .news-item{padding:20px 18px;}
  .metric-card,.matrix-card,.compare-card{padding:22px 18px;}
  .hero-note{gap:8px 16px;font-size:12.5px;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: article */
:root{
  --ink:#0a1020;
  --ink-2:#101a2e;
  --ink-3:#17243c;
  --paper:#f5f6f9;
  --card:#ffffff;
  --line:#e2e7ef;
  --line-soft:#edf0f6;
  --text:#131a26;
  --muted:#5c6a7e;
  --muted-dark:#a3b2c6;
  --brand:#c9a24a;
  --brand-strong:#b78d33;
  --brand-soft:rgba(201,162,74,.14);
  --teal:#1f7a6c;
  --danger:#b4472f;
  --radius:16px;
  --radius-sm:10px;
  --radius-xs:8px;
  --shadow:0 10px 30px rgba(11,18,32,.07);
  --shadow-lg:0 26px 60px rgba(11,18,32,.14);
  --max:1160px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--paper);
  color:var(--text);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure{margin:0;}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;}
button{font-family:inherit;cursor:pointer;}
ul,ol{padding-left:1.2em;}
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 22px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.9);
  backdrop-filter:saturate(180%) blur(12px);
  -webkit-backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:74px;}
.brand{display:inline-flex;align-items:center;gap:12px;min-width:0;}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;flex:0 0 42px;border-radius:12px;
  background:var(--ink);color:var(--brand);
  font-size:15px;font-weight:700;letter-spacing:.04em;
}
.brand-name{display:flex;flex-direction:column;line-height:1.2;min-width:0;}
.brand-name strong{font-size:17px;font-weight:700;letter-spacing:.01em;color:var(--ink);}
.brand-name em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.14em;}
.nav-toggle{
  display:none;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-xs);width:42px;height:42px;color:var(--ink);
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand-strong);}
.nav-toggle:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.nav-collapse{display:block;}
.nav-list{display:flex;align-items:center;gap:6px;list-style:none;margin:0;padding:0;}
.nav-link{
  display:inline-block;padding:9px 16px;border-radius:999px;
  font-size:15px;color:#2b3648;font-weight:500;
}
.nav-link:hover{background:var(--brand-soft);color:#8c6d20;}
.nav-link.active{background:var(--ink);color:#fff;}
.nav-link.active:hover{background:var(--ink-2);color:#fff;}
.nav-cta{
  display:inline-block;margin-left:8px;padding:10px 22px;border-radius:999px;
  background:var(--brand);color:#161006;font-weight:600;font-size:15px;
}
.nav-cta:hover{background:var(--brand-strong);color:#161006;transform:translateY(-1px);}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;overflow:hidden;color:#e9eff8;
  padding:46px 0 48px;
  background:radial-gradient(1000px 420px at 18% -40%, #22354f 0%, #0d1728 58%, #070c16 100%);
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(circle at 30% 0%,#000 0%,transparent 76%);
  mask-image:radial-gradient(circle at 30% 0%,#000 0%,transparent 76%);
}
.page-hero .wrap{position:relative;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:#93a5bc;margin-bottom:20px;}
.crumb a:hover{color:var(--brand);}
.crumb .sep{opacity:.45;}
.crumb .now{color:#cfdbea;}
.article-title{
  font-size:clamp(23px,3vw,36px);
  line-height:1.36;font-weight:700;letter-spacing:-.01em;color:#fff;
  max-width:960px;
}
.article-meta{
  display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:20px;
  font-size:13.5px;color:#a9b8ca;
}
.article-meta span{display:inline-flex;align-items:center;gap:8px;min-width:0;}
.article-meta i{color:var(--brand);font-size:12.5px;}

/* ---------- article layout ---------- */
.article-wrap{padding:46px 0 70px;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 338px;gap:30px;align-items:start;}
.article-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:34px 36px;min-width:0;
}
.article-body{font-size:16.5px;line-height:1.95;color:#1e2735;overflow-wrap:break-word;}
.article-body h2{
  font-size:21px;line-height:1.55;color:var(--ink);font-weight:700;
  margin:34px 0 14px;padding-left:12px;border-left:4px solid var(--brand);
}
.article-body h3{font-size:18px;line-height:1.6;color:var(--ink-2);font-weight:700;margin:26px 0 10px;}
.article-body h4{font-size:16.5px;color:var(--ink-2);font-weight:700;margin:20px 0 8px;}
.article-body p{margin:0 0 16px;}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:1.35em;}
.article-body li{margin-bottom:8px;}
.article-body a{color:var(--brand-strong);border-bottom:1px solid rgba(183,141,51,.42);}
.article-body a:hover{color:#8c6d20;border-bottom-color:#8c6d20;}
.article-body img{border-radius:var(--radius-sm);margin:18px auto;max-width:100%;height:auto;}
.article-body blockquote{
  margin:20px 0;padding:16px 20px;background:#fbf7ee;
  border-left:4px solid var(--brand);color:#4d4126;
  border-radius:0 var(--radius-xs) var(--radius-xs) 0;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body table{width:100%;max-width:100%;border-collapse:collapse;margin:18px 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 13px;text-align:left;vertical-align:top;}
.article-body th{background:#f5f7fa;color:var(--ink);font-weight:600;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:26px 0;}
.article-body code{background:#f1f3f8;padding:2px 6px;border-radius:6px;font-size:.92em;}
.article-foot{
  margin-top:32px;padding-top:20px;border-top:1px solid var(--line-soft);
  font-size:13.5px;line-height:1.85;color:var(--muted);
}
.article-empty{text-align:center;padding:32px 10px 12px;}
.article-empty i{font-size:34px;color:#c3ccda;}
.article-empty h2{font-size:20px;color:var(--ink);margin-top:16px;}
.article-empty p{margin:10px auto 22px;max-width:420px;color:var(--muted);font-size:15px;line-height:1.85;}

/* ---------- sidebar ---------- */
.article-side{display:flex;flex-direction:column;gap:20px;min-width:0;}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:22px;min-width:0;
}
.side-card h2,.side-card h3{font-size:15.5px;color:var(--ink);font-weight:700;margin-bottom:14px;}
.side-list{list-style:none;margin:0;padding:0;font-size:14.5px;}
.side-list li{
  display:flex;align-items:baseline;justify-content:space-between;gap:12px;
  padding:9px 0;border-bottom:1px dashed var(--line-soft);
  color:var(--muted);min-width:0;
}
.side-list li:last-child{border-bottom:0;padding-bottom:0;}
.side-list strong{color:var(--ink);font-weight:600;flex:1 1 auto;min-width:0;}
.side-list em{font-style:normal;color:var(--muted);text-align:right;flex:0 1 auto;min-width:0;}
.side-nav{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px;font-size:14.5px;}
.side-nav a{
  display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--radius-xs);
  background:#f7f9fc;border:1px solid var(--line-soft);color:#2b3648;
}
.side-nav a:hover{background:#fdf9f0;border-color:var(--brand);color:#8c6d20;transform:translateX(2px);}
.side-nav i{color:var(--brand-strong);width:16px;text-align:center;font-size:13px;}
.dl-btns{display:flex;flex-direction:column;gap:10px;}
.dl-btn{
  display:flex;align-items:center;gap:10px;padding:11px 14px;border-radius:var(--radius-xs);
  border:1px solid var(--line);background:#f8fafc;font-size:14.5px;font-weight:500;color:var(--ink-2);
}
.dl-btn i{color:var(--brand-strong);width:18px;text-align:center;font-size:15px;}
.dl-btn:hover{border-color:var(--brand);background:#fdf9f0;color:#7a5d17;transform:translateX(2px);}
.dl-btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

/* ---------- generic section ---------- */
.section{padding:66px 0;}
.section--alt{background:#fff;}
.section--dark{background:var(--ink);color:#dbe4f0;}
.section-head{max-width:760px;margin-bottom:32px;}
.section-kicker{display:inline-block;font-size:12.5px;letter-spacing:.16em;color:var(--brand-strong);font-weight:600;margin-bottom:10px;}
.section-title{font-size:clamp(21px,2.3vw,29px);line-height:1.4;color:var(--ink);font-weight:700;}
.section-desc{margin-top:14px;color:var(--muted);font-size:15.5px;line-height:1.9;}
.section--dark .section-title{color:#fff;}
.section--dark .section-desc{color:var(--muted-dark);}
.section--dark .section-kicker{color:var(--brand);}
.btn-primary{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 28px;border-radius:var(--radius-sm);border:1px solid var(--brand);
  background:var(--brand);color:#161006;font-size:15px;font-weight:600;
}
.btn-primary:hover{background:#dcb75f;border-color:#dcb75f;color:#161006;transform:translateY(-2px);box-shadow:0 12px 26px rgba(201,162,74,.26);}
.btn-primary:focus-visible{outline:2px solid #fff;outline-offset:3px;}
.btn-ghost{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 28px;border-radius:var(--radius-sm);
  border:1px solid rgba(255,255,255,.3);background:transparent;color:#e9eff8;font-size:15px;font-weight:500;
}
.btn-ghost:hover{background:rgba(255,255,255,.09);border-color:rgba(255,255,255,.5);color:#fff;transform:translateY(-2px);}

/* ---------- param table ---------- */
.table-scroll{width:100%;overflow-x:auto;border-radius:var(--radius);box-shadow:var(--shadow);background:#fff;border:1px solid var(--line);}
.param-table{width:100%;min-width:640px;border-collapse:collapse;font-size:15px;}
.param-table thead th{
  background:var(--ink);color:#fff;font-weight:600;padding:14px 18px;
  text-align:left;letter-spacing:.02em;white-space:nowrap;
}
.param-table td{padding:13px 18px;border-top:1px solid var(--line-soft);color:var(--muted);vertical-align:top;line-height:1.8;}
.param-table td:first-child{color:var(--ink);font-weight:600;white-space:nowrap;width:180px;}
.param-table tbody tr:hover td{background:#fafbfd;}
.param-note{margin-top:16px;font-size:13.5px;color:var(--muted);}

/* ---------- download band ---------- */
.dl-band{
  background:linear-gradient(120deg,#0d1728 0%,#16243a 100%);
  color:#dbe4f0;border-radius:var(--radius);padding:36px 40px;
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:30px;align-items:center;
  box-shadow:var(--shadow-lg);
}
.dl-band h2{font-size:clamp(20px,2.1vw,26px);color:#fff;line-height:1.45;}
.dl-band p{margin-top:12px;font-size:15px;line-height:1.85;color:#a9b8ca;max-width:640px;}
.dl-band-actions{display:flex;flex-wrap:wrap;gap:12px;}
.dl-band-actions .btn-primary,.dl-band-actions .btn-ghost{padding:12px 22px;font-size:14.5px;}

/* ---------- channel entry ---------- */
.channel-card{
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:24px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 32px;box-shadow:var(--shadow);
}
.channel-card h3{font-size:19px;color:var(--ink);}
.channel-card p{margin-top:10px;color:var(--muted);font-size:15px;line-height:1.85;max-width:720px;}
.channel-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.channel-tags span{
  display:inline-block;padding:4px 11px;border-radius:999px;
  background:var(--brand-soft);color:#8c6d20;font-size:12.5px;font-weight:500;
}
.link-more{
  display:inline-flex;align-items:center;gap:8px;white-space:nowrap;
  padding:12px 22px;border-radius:999px;border:1px solid var(--ink);
  background:var(--ink);color:#fff;font-size:14.5px;font-weight:500;
}
.link-more:hover{background:var(--ink-2);transform:translateY(-2px);box-shadow:0 12px 24px rgba(10,16,32,.18);}

/* ---------- risk ---------- */
.risk-box{
  background:#fdf6f4;border:1px solid #f0d9d2;border-radius:var(--radius);
  padding:28px 32px;
}
.risk-box h3{display:flex;align-items:center;gap:10px;font-size:17px;color:var(--danger);margin-bottom:14px;}
.risk-box ul{margin:0;padding-left:1.25em;color:#5b4038;font-size:15px;line-height:1.9;}
.risk-box li{margin-bottom:8px;}
.risk-box li:last-child{margin-bottom:0;}

/* ---------- faq ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 24px;min-width:0;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.faq-item:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#d6dce8;}
.faq-item h3{font-size:15.5px;color:var(--ink);display:flex;gap:10px;align-items:flex-start;}
.faq-item h3 i{color:var(--brand-strong);font-size:13px;margin-top:6px;}
.faq-item p{margin-top:10px;color:var(--muted);font-size:14.5px;line-height:1.85;}

/* ---------- lead form ---------- */
.lead-box{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:34px 36px;
}
.lead-form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 18px;}
.form-field{display:flex;flex-direction:column;gap:7px;min-width:0;}
.form-field.full{grid-column:1 / -1;}
.form-field label{font-size:13.5px;color:var(--muted);}
.form-field input,.form-field select,.form-field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--radius-xs);
  padding:11px 13px;font-size:15px;font-family:inherit;background:#fff;color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-field textarea{resize:vertical;min-height:96px;}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(201,162,74,.18);
}
.form-actions{grid-column:1 / -1;display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:4px;}
.form-note{grid-column:1 / -1;font-size:13px;color:var(--muted);line-height:1.8;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#9fb0c6;padding:56px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:34px;}
.footer-brand{min-width:0;}
.footer-logo{display:flex;align-items:center;gap:11px;margin-bottom:16px;flex-wrap:wrap;}
.footer-logo strong{color:#fff;font-size:15.5px;font-weight:700;line-height:1.4;}
.footer-brand p{font-size:14px;line-height:1.9;color:#93a5bc;}
.footer-col h3{color:#fff;font-size:15px;font-weight:600;margin-bottom:14px;}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px;font-size:14px;}
.footer-col a{color:#9fb0c6;}
.footer-col a:hover{color:var(--brand);}
.footer-links{margin-top:38px;padding-top:24px;border-top:1px solid rgba(255,255,255,.1);}
.footer-links-title{font-size:14.5px;color:#fff;font-weight:600;margin-bottom:12px;}
.friend-links{display:flex;flex-wrap:wrap;gap:10px 20px;font-size:13.5px;}
.friend-links a{color:#9fb0c6;}
.friend-links a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:24px;padding-top:18px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  font-size:13px;color:#8296ae;
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:24px;}
  .article-side{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;align-items:start;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
  .dl-band{grid-template-columns:minmax(0,1fr);}
  .channel-card{grid-template-columns:minmax(0,1fr);}
}
@media (max-width:768px){
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-inner{flex-wrap:wrap;padding-top:12px;padding-bottom:12px;}
  .nav-collapse{display:none;flex-basis:100%;}
  .nav-collapse.show{display:block;}
  .nav-list{flex-direction:column;align-items:stretch;gap:4px;padding:10px 0 6px;}
  .nav-link{display:block;padding:11px 14px;border-radius:10px;}
  .nav-cta{margin:6px 0 4px;text-align:center;padding:12px 20px;}
  .page-hero{padding:34px 0 36px;}
  .article-wrap{padding:32px 0 54px;}
  .article-card{padding:24px 20px;}
  .article-body{font-size:16px;line-height:1.9;}
  .article-side{grid-template-columns:minmax(0,1fr);}
  .section{padding:50px 0;}
  .dl-band{padding:28px 22px;}
  .channel-card{padding:24px 20px;}
  .risk-box{padding:22px 20px;}
  .faq-grid{grid-template-columns:minmax(0,1fr);}
  .lead-box{padding:24px 20px;}
  .lead-form{grid-template-columns:minmax(0,1fr);}
  .param-table td:first-child{width:auto;}
}
@media (max-width:520px){
  .wrap{padding:0 16px;}
  .brand-name strong{font-size:15.5px;}
  .brand-name em{font-size:11px;letter-spacing:.1em;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:24px;}
  .dl-band-actions .btn-primary,.dl-band-actions .btn-ghost{width:100%;justify-content:center;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: category1 */
:root{
  --ink:#0a1020;
  --ink-2:#101a2e;
  --ink-3:#17243c;
  --paper:#f5f6f9;
  --card:#ffffff;
  --line:#e2e7ef;
  --line-soft:#edf0f6;
  --text:#131a26;
  --muted:#5c6a7e;
  --muted-dark:#a3b2c6;
  --brand:#c9a24a;
  --brand-strong:#b78d33;
  --brand-soft:rgba(201,162,74,.14);
  --teal:#1f7a6c;
  --danger:#b4472f;
  --radius:16px;
  --radius-sm:10px;
  --radius-xs:8px;
  --shadow:0 10px 30px rgba(11,18,32,.07);
  --shadow-lg:0 26px 60px rgba(11,18,32,.14);
  --max:1160px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--paper);
  color:var(--text);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,transform .2s ease;}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 22px;}
:focus-visible{outline:2px solid var(--brand-strong);outline-offset:3px;}
/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.9);
  backdrop-filter:saturate(180%) blur(12px);
  -webkit-backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:74px;flex-wrap:wrap;}
.brand{display:inline-flex;align-items:center;gap:12px;min-width:0;}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;flex:0 0 42px;border-radius:12px;
  background:var(--ink);color:var(--brand);
  font-size:15px;font-weight:700;letter-spacing:.04em;
}
.brand-name{display:flex;flex-direction:column;line-height:1.2;min-width:0;}
.brand-name strong{font-size:17px;font-weight:700;letter-spacing:.01em;color:var(--ink);}
.brand-name em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.14em;}
.nav-toggle{
  display:none;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-xs);width:42px;height:42px;color:var(--ink);
}
.nav-collapse{display:block;}
.nav-list{display:flex;align-items:center;gap:6px;flex-wrap:wrap;}
.nav-link{
  display:inline-block;padding:9px 16px;border-radius:999px;
  font-size:15px;color:#2b3648;font-weight:500;
}
.nav-link:hover{background:var(--brand-soft);color:#8c6d20;}
.nav-link.active{background:var(--ink);color:#fff;}
.nav-link.active:hover{background:var(--ink-2);color:#fff;}
.nav-cta{
  display:inline-block;margin-left:8px;padding:10px 22px;border-radius:999px;
  background:var(--brand);color:#161006;font-weight:600;font-size:15px;
}
.nav-cta:hover{background:var(--brand-strong);color:#161006;transform:translateY(-1px);}
/* ---------- category hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;color:#e9eff8;
  padding:64px 0 68px;
  background:radial-gradient(1100px 460px at 26% -18%, #22354f 0%, #0d1728 58%, #070c16 100%);
}
.cat-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:66px 66px;
  -webkit-mask-image:radial-gradient(circle at 30% 0%,#000 0%,transparent 76%);
  mask-image:radial-gradient(circle at 30% 0%,#000 0%,transparent 76%);
}
.cat-hero-grid{
  position:relative;
  display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);
  gap:52px;align-items:center;
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:#8ea2ba;margin-bottom:18px;}
.crumbs a{color:#8ea2ba;}
.crumbs a:hover{color:#e6cd93;}
.crumbs i{font-size:9px;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 16px;border-radius:999px;
  border:1px solid rgba(201,162,74,.42);
  background:rgba(201,162,74,.1);
  color:#e6cd93;font-size:13px;letter-spacing:.05em;
}
.hero-eyebrow i{font-size:8px;}
.cat-hero h1{
  margin:20px 0 0;
  font-size:clamp(26px,3.4vw,42px);
  line-height:1.28;font-weight:700;letter-spacing:-.015em;color:#fff;
  max-width:16em;
}
.cat-hero .hero-text{
  margin:20px 0 0;max-width:640px;
  color:#b8c6d8;font-size:15.8px;line-height:1.9;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.btn-primary{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 28px;border-radius:var(--radius-sm);border:1px solid var(--brand);
  background:var(--brand);color:#161006;font-size:15px;font-weight:600;
}
.btn-primary:hover{background:#dcb75f;border-color:#dcb75f;color:#161006;transform:translateY(-2px);box-shadow:0 12px 26px rgba(201,162,74,.26);}
.btn-ghost{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 28px;border-radius:var(--radius-sm);
  border:1px solid rgba(255,255,255,.3);background:transparent;color:#e9eff8;font-size:15px;font-weight:500;
}
.btn-ghost:hover{background:rgba(255,255,255,.09);border-color:rgba(255,255,255,.5);color:#fff;transform:translateY(-2px);}
.cat-hero .hero-note{
  margin-top:26px;display:flex;flex-wrap:wrap;gap:8px 24px;
  color:#8fa2ba;font-size:13.5px;
}
.cat-hero .hero-note span{display:inline-flex;align-items:center;gap:8px;}
.cat-hero .hero-note i{color:var(--brand);font-size:12px;}
/* ---------- parameter panel ---------- */
.param-panel{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.13);
  border-radius:18px;
  padding:22px 24px;
  box-shadow:0 24px 60px rgba(3,8,18,.45);
  min-width:0;
}
.param-panel-head{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-bottom:14px;border-bottom:1px solid rgba(255,255,255,.13);
}
.param-panel-head strong{font-size:15px;color:#fff;letter-spacing:.02em;}
.param-panel-head span{font-size:12px;color:#8698b0;}
.param-row{
  display:flex;align-items:flex-start;justify-content:space-between;
  gap:18px;padding:14px 0;border-bottom:1px dashed rgba(255,255,255,.12);
}
.param-row:last-child{border-bottom:0;padding-bottom:2px;}
.param-label{color:#9fb1c7;font-size:13.5px;flex:0 0 auto;}
.param-value{color:#f2f6fb;font-weight:600;font-size:14px;text-align:right;line-height:1.55;min-width:0;}
.param-value em{display:block;font-style:normal;font-weight:400;color:#8698b0;font-size:12.5px;margin-top:2px;}
/* ---------- section base ---------- */
.section{padding:72px 0;}
.section--alt{background:#fff;}
.section--dark{background:var(--ink);color:#dbe4f0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:36px;margin-bottom:36px;flex-wrap:wrap;}
.section-head .head-main{max-width:640px;min-width:0;}
.section-kicker{
  display:inline-block;font-size:12.5px;letter-spacing:.16em;
  color:var(--brand-strong);font-weight:600;margin-bottom:10px;
}
.section-title{font-size:clamp(21px,2.3vw,29px);color:var(--ink);line-height:1.35;}
.section-desc{margin-top:13px;color:var(--muted);font-size:15.4px;line-height:1.88;}
.section-head .head-side{max-width:400px;min-width:0;color:var(--muted);font-size:14.6px;line-height:1.85;}
.section--dark .section-title{color:#fff;}
.section--dark .section-desc{color:var(--muted-dark);}
.section--dark .section-kicker{color:var(--brand);}
.section--dark .head-side{color:var(--muted-dark);}
/* ---------- metrics ---------- */
.metric-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.metric-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;min-width:0;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d6dce8;}
.metric-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:11px;
  background:var(--brand-soft);color:var(--brand-strong);font-size:16px;margin-bottom:14px;
}
.metric-card h3{font-size:16.5px;color:var(--ink);font-weight:700;}
.metric-card p{margin-top:9px;color:var(--muted);font-size:14.4px;line-height:1.82;}
/* ---------- plan matrix ---------- */
.plan-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.plan-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;min-width:0;display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.plan-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d6dce8;}
.plan-tag{
  display:inline-block;align-self:flex-start;
  padding:4px 12px;border-radius:999px;
  background:var(--brand-soft);color:#8c6d20;
  font-size:12px;font-weight:600;letter-spacing:.04em;margin-bottom:14px;
}
.plan-card h3{font-size:17px;color:var(--ink);font-weight:700;line-height:1.45;}
.plan-card > p{margin-top:10px;color:var(--muted);font-size:14.3px;line-height:1.82;}
.plan-list{margin-top:16px;display:grid;gap:9px;}
.plan-list li{
  position:relative;padding-left:18px;
  color:#33414f;font-size:14px;line-height:1.75;
}
.plan-list li::before{
  content:"";position:absolute;left:0;top:.62em;
  width:6px;height:6px;border-radius:50%;background:var(--brand);
}
/* ---------- compare ---------- */
.compare-wrap{
  overflow-x:auto;-webkit-overflow-scrolling:touch;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);
}
table.compare{width:100%;min-width:720px;border-collapse:collapse;}
.compare thead th{
  background:#f7f9fc;color:var(--ink);font-size:14.5px;font-weight:700;
  padding:16px 20px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap;
}
.compare tbody th{
  padding:16px 20px;text-align:left;font-size:14.2px;font-weight:500;
  color:#42505f;background:#fcfdff;border-bottom:1px solid var(--line-soft);vertical-align:top;width:22%;
}
.compare tbody td{
  padding:16px 20px;font-size:14.2px;color:#23303f;line-height:1.78;
  border-bottom:1px solid var(--line-soft);vertical-align:top;
}
.compare tbody tr:last-child th,
.compare tbody tr:last-child td{border-bottom:0;}
.compare-note{margin-top:16px;color:var(--muted);font-size:13.6px;line-height:1.8;}
.fee-card{
  margin-top:24px;background:#fff;border:1px solid var(--line);border-left:3px solid var(--brand);
  border-radius:var(--radius);padding:24px 26px;
}
.fee-card h3{font-size:16px;color:var(--ink);font-weight:700;}
.fee-card p{margin-top:9px;color:var(--muted);font-size:14.3px;line-height:1.85;}
/* ---------- flow ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px;}
.flow-item{
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius);padding:22px 18px;min-width:0;
  transition:background-color .22s ease,border-color .22s ease,transform .22s ease;
}
.flow-item:hover{background:rgba(255,255,255,.09);border-color:rgba(201,162,74,.45);transform:translateY(-3px);}
.flow-step{display:block;font-size:12px;letter-spacing:.16em;color:var(--brand);font-weight:700;}
.flow-item h3{margin-top:10px;font-size:15.5px;color:#fff;font-weight:700;line-height:1.5;}
.flow-item p{margin-top:8px;font-size:13.6px;color:#a9bacd;line-height:1.8;}
/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.news-card{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;min-width:0;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d6dce8;}
.news-cat{
  align-self:flex-start;font-size:12px;font-weight:600;color:#8c6d20;
  background:var(--brand-soft);padding:3px 11px;border-radius:999px;
}
.news-card h3{margin-top:12px;font-size:16.2px;color:var(--ink);font-weight:700;line-height:1.55;}
.news-card p{margin-top:9px;color:var(--muted);font-size:14.2px;line-height:1.8;flex:1 1 auto;}
.news-time{
  margin-top:16px;padding-top:13px;border-top:1px solid var(--line-soft);
  font-size:12.8px;color:#8b97a8;display:inline-flex;align-items:center;gap:7px;
}
.news-empty{
  background:#fff;border:1px dashed var(--line);border-radius:var(--radius);
  padding:30px;text-align:center;color:var(--muted);font-size:14.5px;
}
/* ---------- guard ---------- */
.guard-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.guard-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;min-width:0;display:flex;gap:16px;align-items:flex-start;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.guard-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#d6dce8;}
.guard-num{
  flex:0 0 40px;width:40px;height:40px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--ink);color:var(--brand);font-size:14px;font-weight:700;
}
.guard-body{min-width:0;}
.guard-body h3{font-size:16.4px;color:var(--ink);font-weight:700;}
.guard-body p{margin-top:8px;color:var(--muted);font-size:14.3px;line-height:1.82;}
/* ---------- quick points ---------- */
.point-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.point-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:20px 22px;min-width:0;display:flex;gap:14px;align-items:flex-start;
}
.point-item i{color:var(--teal);font-size:15px;margin-top:4px;flex:0 0 auto;}
.point-item p{font-size:14.5px;color:#33414f;line-height:1.8;min-width:0;}
.point-item strong{color:var(--ink);}
/* ---------- risk note ---------- */
.risk-note{
  margin-top:26px;background:#fff;border:1px solid var(--line);
  border-left:3px solid var(--danger);border-radius:var(--radius);padding:22px 24px;
}
.risk-note h3{font-size:15.6px;color:var(--ink);font-weight:700;}
.risk-note p{margin-top:8px;color:var(--muted);font-size:14.2px;line-height:1.85;}
/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px;max-width:920px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:0 24px;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:#d6dce8;box-shadow:var(--shadow);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:19px 0;
  display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
  font-size:15.8px;font-weight:600;color:var(--ink);line-height:1.65;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex:0 0 auto;color:var(--brand-strong);font-size:19px;font-weight:600;line-height:1.2;
}
.faq-item[open] summary::after{content:"\2212";}
.faq-item p{padding:0 0 20px;color:var(--muted);font-size:14.5px;line-height:1.88;max-width:760px;}
/* ---------- download ---------- */
.download-band{
  background:linear-gradient(120deg,#101a2e 0%,#17243c 62%,#22344f 100%);
  color:#e6eef9;border-radius:22px;padding:34px 36px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:var(--shadow-lg);
}
.dl-copy{min-width:0;max-width:560px;}
.dl-copy h2{font-size:clamp(19px,2vw,24px);color:#fff;font-weight:700;line-height:1.4;}
.dl-copy p{margin-top:10px;color:#a9bacd;font-size:14.4px;line-height:1.85;}
.dl-buttons{display:flex;flex-wrap:wrap;gap:13px;}
.dl-btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:13px 22px;border-radius:var(--radius-sm);
  border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.06);
  color:#eef4fb;font-size:14.6px;font-weight:600;
  transition:background-color .2s ease,border-color .2s ease,transform .2s ease,color .2s ease;
}
.dl-btn i{color:var(--brand);font-size:15px;}
.dl-btn:hover{background:var(--brand);border-color:var(--brand);color:#161006;transform:translateY(-2px);}
.dl-btn:hover i{color:#161006;}
/* ---------- lead form ---------- */
.lead-panel{
  display:grid;grid-template-columns:minmax(0,.86fr) minmax(0,1.14fr);
  gap:44px;background:#fff;border:1px solid var(--line);
  border-radius:22px;padding:40px;box-shadow:var(--shadow);
}
.lead-copy{min-width:0;}
.lead-copy h2{font-size:clamp(20px,2.1vw,26px);color:var(--ink);font-weight:700;line-height:1.42;}
.lead-copy p{margin-top:14px;color:var(--muted);font-size:14.8px;line-height:1.9;}
.lead-copy ul{margin-top:20px;display:grid;gap:11px;}
.lead-copy li{
  position:relative;padding-left:20px;color:#33414f;font-size:14.3px;line-height:1.75;
}
.lead-copy li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:.1em;color:var(--teal);font-size:11.5px;
}
.lead-form{min-width:0;}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.form-field{display:flex;flex-direction:column;gap:7px;min-width:0;}
.form-field.full{grid-column:1 / -1;}
.form-field label{font-size:13.4px;color:#3b4859;font-weight:600;}
.form-field input,
.form-field select,
.form-field textarea{
  width:100%;min-width:0;
  padding:11px 14px;border-radius:var(--radius-xs);
  border:1px solid var(--line);background:#fbfcfe;color:var(--text);
  font-size:14.4px;font-family:inherit;line-height:1.6;
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.form-field textarea{resize:vertical;min-height:88px;}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus{
  outline:none;border-color:var(--brand);background:#fff;
  box-shadow:0 0 0 3px rgba(201,162,74,.16);
}
.form-actions{grid-column:1 / -1;display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:4px;}
.btn-solid{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 28px;border-radius:var(--radius-sm);border:1px solid var(--ink);
  background:var(--ink);color:#fff;font-size:15px;font-weight:600;
  transition:background-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-solid:hover{background:var(--ink-3);transform:translateY(-2px);box-shadow:0 12px 26px rgba(10,16,32,.2);}
.form-tip{font-size:13px;color:var(--muted);line-height:1.7;min-width:0;}
.lead-tip{
  grid-column:1 / -1;margin-top:2px;
  display:none;padding:12px 16px;border-radius:var(--radius-xs);
  background:rgba(31,122,108,.1);border:1px solid rgba(31,122,108,.28);
  color:#175c51;font-size:13.6px;line-height:1.7;
}
.lead-tip.is-visible{display:block;}
/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#a9bacd;padding:60px 0 26px;margin-top:0;}
.footer-grid{
  display:grid;grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));
  gap:36px;
}
.footer-brand{min-width:0;}
.footer-logo{display:inline-flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-logo strong{color:#fff;font-size:15.5px;line-height:1.45;font-weight:700;}
.footer-brand p{color:#93a5ba;font-size:13.8px;line-height:1.9;max-width:420px;}
.footer-col{min-width:0;}
.footer-col h3{color:#fff;font-size:14.6px;font-weight:700;margin-bottom:14px;letter-spacing:.02em;}
.footer-col ul{display:grid;gap:9px;}
.footer-col a{color:#a3b2c6;font-size:13.9px;line-height:1.7;}
.footer-col a:hover{color:var(--brand);}
.footer-links{padding:28px 0 0;margin-top:34px;border-top:1px solid rgba(255,255,255,.1);}
.footer-links-title{font-size:14.2px;color:#fff;font-weight:700;margin-bottom:14px;}
.friend-links{display:flex;flex-wrap:wrap;gap:10px 22px;}
.friend-links a{
  color:#9db0c6;font-size:13.6px;line-height:1.7;padding:4px 0;
  border-bottom:1px solid transparent;
}
.friend-links a:hover{color:var(--brand);border-bottom-color:rgba(201,162,74,.55);}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  margin-top:26px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
}
.footer-bottom p{color:#7f90a6;font-size:13px;line-height:1.7;}
/* ---------- responsive ---------- */
@media (max-width:1024px){
  .cat-hero-grid{grid-template-columns:1fr;gap:34px;}
  .cat-hero h1{max-width:none;}
  .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .plan-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .flow-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px;}
}
@media (max-width:900px){
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-collapse{flex-basis:100%;}
  .nav-collapse.collapse:not(.show){display:none;}
  .nav-collapse.show{display:block;}
  .nav-list{flex-direction:column;align-items:stretch;gap:6px;padding:12px 0 18px;}
  .nav-link{display:block;padding:11px 16px;border-radius:var(--radius-xs);}
  .nav-cta{margin-left:0;text-align:center;padding:12px 18px;}
  .lead-panel{grid-template-columns:1fr;gap:30px;padding:30px;}
}
@media (max-width:768px){
  .section{padding:56px 0;}
  .cat-hero{padding:48px 0 54px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .metric-grid{grid-template-columns:1fr;}
  .plan-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .guard-grid{grid-template-columns:1fr;}
  .point-list{grid-template-columns:1fr;}
  .flow-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .download-band{padding:26px 24px;gap:22px;}
  .dl-buttons{width:100%;}
  .dl-btn{flex:1 1 140px;justify-content:center;}
  .form-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .wrap{padding:0 16px;}
  .brand-name strong{font-size:15.5px;}
  .brand-name em{font-size:11px;letter-spacing:.1em;}
  .hero-actions{gap:10px;}
  .btn-primary,.btn-ghost{width:100%;justify-content:center;padding:12px 18px;}
  .flow-grid{grid-template-columns:1fr;}
  .param-panel{padding:18px;}
  .param-row{flex-direction:column;gap:4px;}
  .param-value{text-align:left;}
  .lead-panel{padding:24px 18px;}
  .dl-btn{flex:1 1 100%;}
  .faq-item{padding:0 18px;}
}