/* roulang page: index */
:root{
  --ink:#0d1826;
  --ink-2:#16293e;
  --ink-3:#1e344b;
  --gold:#c9a24a;
  --gold-bright:#dcb862;
  --gold-deep:#a9852f;
  --paper:#f5f7fa;
  --card:#ffffff;
  --text:#1b2531;
  --muted:#5f6d7e;
  --line:#e3e9f1;
  --radius-lg:18px;
  --radius:12px;
  --radius-sm:9px;
  --shadow-sm:0 1px 2px rgba(13,24,38,.06);
  --shadow-md:0 12px 32px rgba(13,24,38,.09);
  --shadow-lg:0 24px 56px rgba(13,24,38,.14);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{list-style:none;padding:0}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%;height:auto}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px}
.app-shell{display:grid;grid-template-columns:248px minmax(0,1fr);min-height:100vh}
.app-main{min-width:0;display:flex;flex-direction:column;min-height:100vh}
.container{width:100%;max-width:1120px;margin:0 auto;padding:0 28px}
.side-nav{
  position:sticky;top:0;align-self:start;height:100vh;
  display:flex;flex-direction:column;gap:20px;
  padding:26px 18px 20px;
  background:linear-gradient(180deg,#0c1622,#132437 55%,#0c1622);
  color:#c7d3e1;overflow-y:auto;z-index:60;
}
.brand{display:flex;align-items:center;gap:11px;padding-bottom:18px;border-bottom:1px solid rgba(255,255,255,.09)}
.brand__mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  background:linear-gradient(135deg,var(--gold-bright),var(--gold-deep));
  display:grid;place-items:center;color:#241a08;font-weight:800;font-size:17px;
  box-shadow:0 8px 18px rgba(201,162,74,.28);
}
.brand__text{display:flex;flex-direction:column;line-height:1.35;min-width:0}
.brand__name{font-size:15.5px;font-weight:700;color:#fff;letter-spacing:.4px}
.brand__sub{font-size:11.5px;color:#8ea2b8;letter-spacing:1.4px}
.nav-list{display:flex;flex-direction:column;gap:6px}
.nav-link{
  display:flex;align-items:center;gap:10px;padding:10px 13px;border-radius:10px;
  font-size:14.5px;color:#b9c6d6;transition:background .2s,color .2s,box-shadow .2s;
}
.nav-link .dot{width:6px;height:6px;border-radius:50%;background:currentColor;opacity:.55;flex:0 0 6px}
.nav-link:hover{background:rgba(255,255,255,.08);color:#fff}
.nav-link.active{background:rgba(201,162,74,.16);color:#f2d99d;box-shadow:inset 0 0 0 1px rgba(201,162,74,.36)}
.side-card{
  margin-top:auto;padding:16px;border-radius:14px;
  background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.1);
}
.side-card__title{font-size:13.5px;font-weight:700;color:#f0d79b;margin-bottom:6px}
.side-card__text{font-size:12.8px;color:#a3b4c6;line-height:1.7}
.side-card__btn{
  display:inline-flex;margin-top:12px;padding:8px 16px;border-radius:999px;
  background:linear-gradient(135deg,var(--gold-bright),var(--gold-deep));
  color:#241a08;font-size:13px;font-weight:700;transition:transform .2s,box-shadow .2s;
}
.side-card__btn:hover{transform:translateY(-2px);box-shadow:0 10px 20px rgba(201,162,74,.3)}
.side-foot{font-size:12px;color:#6a7c92;letter-spacing:.4px}
.topbar{display:none}
.nav-backdrop{display:none}
.hero{
  position:relative;overflow:hidden;
  padding:58px 0 66px;
  background:
    radial-gradient(900px 360px at 12% 0%,rgba(201,162,74,.18),transparent 62%),
    radial-gradient(700px 320px at 92% 12%,rgba(70,120,170,.24),transparent 60%),
    linear-gradient(170deg,#0d1826,#16293e 62%,#0f1e2f);
  color:#e7eef7;
}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);gap:42px;align-items:start}
.region-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}
.region-tag{
  font-size:12.8px;padding:5px 13px;border-radius:999px;
  border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.055);color:#cfdcea;
}
.hero h1{
  font-size:clamp(25px,2.9vw,37px);line-height:1.34;letter-spacing:.4px;
  font-weight:800;color:#fff;margin-bottom:18px;
}
.hero-lead{font-size:15.6px;color:#b6c7d9;line-height:1.95;max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:11px;font-size:15px;font-weight:600;
  border:1px solid transparent;transition:transform .2s,box-shadow .2s,background .2s,color .2s,border-color .2s;
}
.btn-gold{background:linear-gradient(135deg,var(--gold-bright),var(--gold-deep));color:#241a08;box-shadow:0 12px 26px rgba(201,162,74,.3)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(201,162,74,.4)}
.btn-ghost{border-color:rgba(255,255,255,.3);color:#e8f0f8}
.btn-ghost:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.52)}
.btn-outline{border-color:#c9d4e2;background:#fff;color:#22303f}
.btn-outline:hover{border-color:var(--gold);color:#8a6a1f}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;
  margin-top:30px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
}
.stat{min-width:0}
.stat__num{font-size:20px;font-weight:800;color:#f0d79b;letter-spacing:.6px}
.stat__label{font-size:12.6px;color:#93a6bc;margin-top:2px}
.map-panel{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius-lg);padding:22px;box-shadow:var(--shadow-lg);
  backdrop-filter:blur(6px);
}
.map-panel__head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:16px}
.map-panel__label{font-size:14.5px;font-weight:700;color:#fff}
.map-panel__hint{font-size:12px;color:#8ea2b8}
.zone-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.zone{
  display:flex;flex-direction:column;gap:2px;padding:10px 12px;border-radius:10px;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.09);min-width:0;
}
.zone__name{font-size:13.4px;color:#eaf1f8;font-weight:600}
.zone__desc{font-size:11.8px;color:#8ea2b8}
.nearby{margin-top:18px;padding-top:16px;border-top:1px dashed rgba(255,255,255,.16)}
.nearby__title{font-size:12.5px;color:#f0d79b;letter-spacing:1px;margin-bottom:10px}
.nearby__list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
.nearby__list a{
  display:flex;align-items:center;gap:7px;font-size:13.2px;color:#c3d2e2;
  padding:7px 10px;border-radius:8px;background:rgba(255,255,255,.045);
  transition:background .2s,color .2s;
}
.nearby__list a::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--gold);flex:0 0 5px}
.nearby__list a:hover{background:rgba(201,162,74,.18);color:#fff}
.section{padding:62px 0;scroll-margin-top:76px}
.section--alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section--dark{
  background:linear-gradient(160deg,#0d1826,#172c42);
  color:#cfdcea;border:0;
}
.sec-head{max-width:780px;margin-bottom:30px}
.sec-eyebrow{font-size:12.6px;letter-spacing:2.2px;color:var(--gold-deep);font-weight:700;margin-bottom:10px}
.sec-title{font-size:clamp(21px,2.3vw,27px);line-height:1.42;font-weight:800;color:#132031}
.sec-desc{margin-top:12px;font-size:15.3px;color:var(--muted);line-height:1.9}
.section--dark .sec-title{color:#fff}
.section--dark .sec-desc{color:#a6b8ca}
.section--dark .sec-eyebrow{color:#e5c67f}
.download-band{
  background:var(--card);border:1px solid var(--line);border-radius:22px;
  box-shadow:var(--shadow-md);padding:30px;
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:30px;align-items:center;
}
.download-title{font-size:clamp(19px,2vw,23px);line-height:1.5;font-weight:800;color:#132031;margin-bottom:10px}
.download-desc{font-size:14.8px;color:var(--muted);line-height:1.9}
.download-actions{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.dl-btn{
  display:flex;align-items:center;gap:10px;min-width:0;
  padding:14px 14px;border-radius:13px;border:1px solid #dde5ef;background:#f8fafc;
  transition:transform .2s,box-shadow .2s,border-color .2s,background .2s;
}
.dl-btn:hover{transform:translateY(-3px);border-color:var(--gold);background:#fff;box-shadow:0 14px 28px rgba(13,24,38,.1)}
.dl-btn__icon{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(220,184,98,.28),rgba(169,133,47,.2));
  color:#8a6a1f;font-size:15px;font-weight:700;
}
.dl-btn__body{display:flex;flex-direction:column;min-width:0;line-height:1.4}
.dl-btn__name{font-size:14px;font-weight:700;color:#1b2531}
.dl-btn__meta{font-size:11.8px;color:#7b8899}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.grid-3>*, .grid-2>*, .grid-4>*{min-width:0}
.digest-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.digest-item{
  display:flex;gap:14px;padding:18px 20px;background:#fff;border:1px solid var(--line);
  border-radius:14px;min-width:0;transition:border-color .2s,box-shadow .2s;
}
.digest-item:hover{border-color:#d3dded;box-shadow:var(--shadow-sm)}
.digest-item__no{
  flex:0 0 30px;height:30px;border-radius:9px;display:grid;place-items:center;
  background:#f1f5fa;color:#8a6a1f;font-weight:800;font-size:13px;
}
.digest-item h3{font-size:15px;line-height:1.55;color:#17232f;margin-bottom:4px}
.digest-item p{font-size:14px;color:var(--muted);line-height:1.78}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:22px;min-width:0;transition:transform .24s,box-shadow .24s,border-color .24s;
  display:flex;flex-direction:column;gap:10px;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#d5deea}
.card__icon{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(220,184,98,.3),rgba(169,133,47,.16));
  color:#8a6a1f;font-weight:800;font-size:15px;
}
.card h3{font-size:16.5px;line-height:1.55;color:#16222f;font-weight:700}
.card p{font-size:14.2px;color:var(--muted);line-height:1.82}
.card__link{margin-top:auto;font-size:13.4px;font-weight:600;color:#9a7a28}
.card__link:hover{color:var(--gold-deep)}
.post-card{
  display:flex;flex-direction:column;gap:11px;min-width:0;
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;
  transition:transform .24s,box-shadow .24s,border-color .24s;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#d5deea}
.post-card__meta{display:flex;flex-wrap:wrap;gap:9px;align-items:center;font-size:12.4px;color:var(--muted)}
.tag{
  display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;
  background:#f2f5f9;color:#4a5a6d;border:1px solid #e6ecf3;white-space:nowrap;
}
.post-card h3{font-size:16.2px;line-height:1.58;color:#16222f;font-weight:700}
.post-card p{font-size:14px;color:var(--muted);line-height:1.78}
.post-card__more{margin-top:auto;font-size:13.2px;font-weight:600;color:#9a7a28}
.empty-note{
  padding:26px;border:1px dashed #cfd9e6;border-radius:14px;background:#fbfcfe;
  color:#7b8899;font-size:14.4px;text-align:center;
}
.index-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.index-item{
  display:flex;gap:14px;align-items:flex-start;padding:18px 20px;min-width:0;
  border:1px solid var(--line);border-radius:14px;background:#fff;
}
.index-item__no{
  font-size:18px;font-weight:800;color:#d8c191;line-height:1.2;flex:0 0 34px;letter-spacing:1px;
}
.index-item h3{font-size:15px;color:#17232f;margin-bottom:4px}
.index-item p{font-size:13.8px;color:var(--muted);line-height:1.78}
.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-lg);background:#fff}
.strategy-table{width:100%;border-collapse:collapse;min-width:760px;font-size:14.3px}
.strategy-table th{
  background:#f2f5f9;text-align:left;padding:14px 18px;font-weight:700;color:#2b3a4d;
  white-space:nowrap;border-bottom:1px solid var(--line);
}
.strategy-table td{padding:14px 18px;border-top:1px solid var(--line);color:#42505f;vertical-align:top;line-height:1.78}
.strategy-table tbody tr:hover{background:#fafcff}
.strategy-table td:first-child{font-weight:600;color:#1b2531}
.note-bar{
  margin-top:16px;padding:14px 18px;border-radius:12px;
  background:#fdf7e8;border:1px solid #f0e2bd;color:#7d6222;font-size:13.8px;line-height:1.8;
}
.section--dark .note-bar{background:rgba(201,162,74,.12);border-color:rgba(201,162,74,.3);color:#e6d3a4}
.risk-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.risk-item{
  display:flex;gap:12px;padding:16px 18px;border-radius:13px;min-width:0;
  background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.11);
}
.risk-item__mark{
  flex:0 0 26px;height:26px;border-radius:8px;display:grid;place-items:center;
  background:rgba(201,162,74,.22);color:#f0d79b;font-size:13px;font-weight:800;
}
.risk-item h3{font-size:15px;color:#fff;margin-bottom:3px}
.risk-item p{font-size:13.8px;color:#a9bacb;line-height:1.78}
.step-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.step-card{
  padding:20px;border-radius:15px;background:#fff;border:1px solid var(--line);min-width:0;
  display:flex;flex-direction:column;gap:8px;
}
.step-card__no{
  width:28px;height:28px;border-radius:50%;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--gold-bright),var(--gold-deep));
  color:#241a08;font-weight:800;font-size:13px;
}
.step-card h3{font-size:15.4px;color:#17232f}
.step-card p{font-size:13.9px;color:var(--muted);line-height:1.8}
.news-layout{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(0,1fr);gap:28px;align-items:start}
.news-list{display:flex;flex-direction:column;gap:12px}
.news-item{
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:16px;align-items:center;
  padding:18px 20px;border:1px solid var(--line);border-radius:14px;background:#fff;
  transition:border-color .2s,box-shadow .2s,transform .2s;min-width:0;
}
.news-item:hover{border-color:#d3dded;box-shadow:var(--shadow-sm);transform:translateX(2px)}
.news-item__main{min-width:0}
.news-item h3{font-size:15.6px;color:#16222f;line-height:1.55;margin-bottom:4px}
.news-item p{font-size:13.8px;color:var(--muted);line-height:1.75}
.news-item__meta{display:flex;flex-direction:column;gap:6px;align-items:flex-end;font-size:12.4px;color:#8b97a6;white-space:nowrap}
.news-side{display:flex;flex-direction:column;gap:16px}
.news-side__card{
  padding:20px;border-radius:16px;border:1px solid var(--line);background:#fff;min-width:0;
}
.news-side__card--dark{
  background:linear-gradient(160deg,#122234,#1b3category);
  background:linear-gradient(160deg,#122234,#1b334b);
  color:#cfdcea;border-color:rgba(255,255,255,.08);
}
.news-side__card h3{font-size:15.6px;margin-bottom:8px;color:#16222f}
.news-side__card--dark h3{color:#fff}
.news-side__card p{font-size:13.8px;color:var(--muted);line-height:1.82}
.news-side__card--dark p{color:#a9bacb}
.news-side__more{
  display:inline-flex;margin-top:14px;padding:8px 16px;border-radius:999px;
  border:1px solid #d9e2ee;font-size:13.2px;font-weight:600;color:#8a6a1f;
  transition:border-color .2s,background .2s;
}
.news-side__more:hover{border-color:var(--gold);background:#fdf9ef}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:border-color .2s,box-shadow .2s}
.faq-item[open]{border-color:#dfd2ab;box-shadow:var(--shadow-sm)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:17px 22px;cursor:pointer;font-size:15.4px;font-weight:600;color:#17232f;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:#a9852f;font-size:20px;line-height:1;flex:0 0 auto}
.faq-item[open] summary::after{content:"−"}
.faq-item__body{padding:0 22px 20px;font-size:14.6px;color:var(--muted);line-height:1.9}
.cta-panel{
  display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,.7fr);gap:26px;align-items:center;
  padding:34px;border-radius:22px;
  background:linear-gradient(135deg,#0e1c2c,#1b334b 68%,#223d58);
  color:#dbe5f0;box-shadow:var(--shadow-lg);
}
.cta-panel h2{font-size:clamp(20px,2.1vw,25px);color:#fff;line-height:1.45;margin-bottom:10px}
.cta-panel p{font-size:14.8px;color:#a9bacb;line-height:1.9}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
.site-footer{background:#0b1522;color:#9fb0c2;padding:52px 0 26px;margin-top:auto}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.5fr) repeat(2,minmax(0,1fr));gap:34px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:14px}
.footer-brand .brand__mark{width:36px;height:36px;flex:0 0 36px;font-size:15px}
.footer-brand__name{font-size:15.5px;font-weight:700;color:#fff;letter-spacing:.4px}
.footer-desc{font-size:14px;line-height:1.9;color:#8d9eb1;max-width:420px}
.footer-col h3{font-size:14.5px;color:#fff;margin-bottom:12px;letter-spacing:.4px}
.footer-col ul{display:flex;flex-direction:column;gap:9px}
.footer-col a{font-size:13.8px;color:#9fb0c2;transition:color .2s}
.footer-col a:hover{color:#efd79f}
.footer-bottom{
  margin-top:34px;padding-top:20px;border-top:1px solid rgba(255,255,255,.09);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12.8px;color:#6f8298;
}
.footer-note{margin-top:16px;font-size:12.6px;color:#6f8298;line-height:1.85}
@media (max-width:1024px){
  .app-shell{grid-template-columns:minmax(0,1fr)}
  .side-nav{
    position:fixed;top:0;left:0;bottom:0;height:100vh;width:274px;
    transform:translateX(-100%);transition:transform .28s ease;box-shadow:var(--shadow-lg);
  }
  .side-nav.open{transform:translateX(0)}
  .nav-backdrop{
    display:block;position:fixed;inset:0;background:rgba(8,15,25,.55);z-index:55;
    opacity:0;pointer-events:none;transition:opacity .25s;
  }
  .nav-backdrop.show{opacity:1;pointer-events:auto}
  .topbar{
    display:flex;position:sticky;top:0;z-index:50;align-items:center;justify-content:space-between;
    gap:14px;height:58px;padding:0 16px;background:#0c1622;color:#fff;
    box-shadow:0 2px 12px rgba(0,0,0,.2);
  }
  .nav-toggle{width:38px;height:34px;display:flex;flex-direction:column;justify-content:center;gap:5px;border-radius:9px}
  .nav-toggle span{display:block;height:2px;width:20px;background:#e8eef6;border-radius:2px}
  .topbar__brand{font-size:15.5px;font-weight:700;letter-spacing:.5px}
  .topbar__cta{
    font-size:13px;font-weight:700;padding:7px 15px;border-radius:999px;
    background:linear-gradient(135deg,var(--gold-bright),var(--gold-deep));color:#241a08;
  }
  .hero{padding:44px 0 52px}
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:30px}
  .download-band{grid-template-columns:minmax(0,1fr);gap:22px}
  .grid-3,.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .step-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .news-layout{grid-template-columns:minmax(0,1fr)}
  .cta-panel{grid-template-columns:minmax(0,1fr);gap:20px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .section{padding:48px 0}
  .hero-lead{font-size:15px}
  .digest-list,.index-list,.risk-grid,.grid-2{grid-template-columns:minmax(0,1fr)}
  .download-actions{grid-template-columns:minmax(0,1fr)}
  .hero-stats{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
  .news-item{grid-template-columns:minmax(0,1fr);gap:8px}
  .news-item__meta{flex-direction:row;align-items:center;justify-content:flex-start;gap:10px}
}
@media (max-width:560px){
  .grid-3,.grid-4,.step-grid,.zone-grid,.nearby__list{grid-template-columns:minmax(0,1fr)}
  .hero h1{font-size:23px}
  .sec-title{font-size:20px}
  .download-band{padding:22px}
  .cta-panel{padding:24px}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .hero-stats{grid-template-columns:minmax(0,1fr);gap:14px}
  .stat__num{font-size:18px}
}

/* roulang page: article */
:root{
  --ink:#0d1826;
  --ink-2:#16293e;
  --ink-3:#1e344b;
  --gold:#c9a24a;
  --gold-bright:#dcb862;
  --gold-deep:#a9852f;
  --paper:#f5f7fa;
  --card:#ffffff;
  --text:#1b2531;
  --muted:#5f6d7e;
  --line:#e3e9f1;
  --radius-lg:18px;
  --radius:12px;
  --radius-sm:9px;
  --shadow-sm:0 1px 2px rgba(13,24,38,.06);
  --shadow-md:0 12px 32px rgba(13,24,38,.09);
  --shadow-lg:0 24px 56px rgba(13,24,38,.14);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%;height:auto}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.45}
p{margin:0}
ul,ol{margin:0}

.app-shell{display:grid;grid-template-columns:250px minmax(0,1fr);min-height:100vh}
.app-main{min-width:0;display:flex;flex-direction:column;min-height:100vh}
.container{width:100%;max-width:1120px;margin:0 auto;padding:0 28px}

/* ---------- sidebar ---------- */
.side-nav{
  position:sticky;top:0;align-self:start;height:100vh;
  display:flex;flex-direction:column;gap:20px;
  padding:26px 18px 20px;
  background:linear-gradient(180deg,#0c1622,#132437 55%,#0c1622);
  color:#c7d3e1;overflow-y:auto;z-index:60;
}
.brand{display:flex;align-items:center;gap:11px;padding-bottom:18px;border-bottom:1px solid rgba(255,255,255,.09)}
.brand__mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  background:linear-gradient(135deg,var(--gold-bright),var(--gold-deep));
  display:grid;place-items:center;color:#241a08;font-weight:800;font-size:17px;
  box-shadow:0 8px 18px rgba(201,162,74,.28);
}
.brand__text{display:flex;flex-direction:column;line-height:1.35;min-width:0}
.brand__name{font-size:15.5px;font-weight:700;color:#fff;letter-spacing:.4px}
.brand__sub{font-size:11.5px;color:#8ea2b8;letter-spacing:1.4px}
.nav-list{display:flex;flex-direction:column;gap:6px;list-style:none;padding:0}
.nav-link{
  display:flex;align-items:center;gap:10px;padding:10px 13px;border-radius:10px;
  font-size:14.5px;color:#b9c6d6;transition:background .2s,color .2s,box-shadow .2s;
}
.nav-link .dot{width:6px;height:6px;border-radius:50%;background:currentColor;opacity:.55;flex:0 0 6px}
.nav-link:hover{background:rgba(255,255,255,.08);color:#fff}
.nav-link.active{background:rgba(201,162,74,.16);color:#f2d99d;box-shadow:inset 0 0 0 1px rgba(201,162,74,.36)}
.side-card{
  margin-top:auto;padding:16px;border-radius:14px;
  background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.1);
}
.side-card__title{font-size:13.5px;font-weight:700;color:#f0d79b;margin-bottom:6px}
.side-card__text{font-size:12.8px;color:#a3b4c6;line-height:1.7}
.side-card__btn{
  display:inline-flex;margin-top:12px;padding:8px 16px;border-radius:999px;
  background:linear-gradient(135deg,var(--gold-bright),var(--gold-deep));
  color:#241a08;font-size:13px;font-weight:700;transition:transform .2s,box-shadow .2s;
}
.side-card__btn:hover{transform:translateY(-2px);box-shadow:0 10px 20px rgba(201,162,74,.3)}

/* ---------- mobile topbar ---------- */
.topbar{
  display:none;position:sticky;top:0;z-index:120;
  align-items:center;justify-content:space-between;gap:12px;
  padding:12px 18px;background:#0d1826;color:#e7eef7;
  border-bottom:1px solid rgba(255,255,255,.1);
}
.topbar__brand{display:flex;align-items:center;gap:10px;min-width:0}
.topbar__name{font-size:14.5px;font-weight:700;color:#fff;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar__actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.topbar__dl{
  padding:7px 14px;border-radius:999px;font-size:13px;font-weight:700;
  background:linear-gradient(135deg,var(--gold-bright),var(--gold-deep));color:#241a08;
}
.nav-toggle{
  width:38px;height:38px;border-radius:10px;border:1px solid rgba(255,255,255,.22);
  display:grid;place-items:center;gap:4px;
}
.nav-toggle span{display:block;width:17px;height:2px;background:#e7eef7;border-radius:2px}
.nav-backdrop{display:none;position:fixed;inset:0;background:rgba(6,12,20,.55);z-index:150}
.nav-backdrop.is-open{display:block}
@media (max-width:1024px){
  .app-shell{grid-template-columns:minmax(0,1fr)}
  .topbar{display:flex}
  .side-nav{
    display:none;position:fixed;top:0;left:0;width:272px;height:100vh;
    z-index:200;box-shadow:var(--shadow-lg);
  }
  .side-nav.is-open{display:flex}
}

/* ---------- article hero ---------- */
.article-hero{
  position:relative;overflow:hidden;
  padding:44px 0 46px;
  background:
    radial-gradient(900px 360px at 12% 0%,rgba(201,162,74,.17),transparent 62%),
    radial-gradient(700px 320px at 92% 12%,rgba(70,120,170,.22),transparent 60%),
    linear-gradient(170deg,#0d1826,#16293e 62%,#0f1e2f);
  color:#e7eef7;
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:#93a7bd;margin-bottom:18px}
.crumb a{color:#c6d5e5;transition:color .2s}
.crumb a:hover{color:var(--gold-bright)}
.crumb span{color:#6f8298}
.article-hero__tag{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12.6px;padding:5px 14px;border-radius:999px;
  border:1px solid rgba(201,162,74,.45);background:rgba(201,162,74,.14);color:#f0d79b;
  margin-bottom:16px;
}
.article-hero h1{
  font-size:clamp(23px,2.7vw,34px);line-height:1.42;color:#fff;letter-spacing:.3px;
  max-width:860px;overflow-wrap:break-word;
}
.article-meta{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:20px;font-size:13.6px;color:#a7b9cc}
.article-meta__item{display:inline-flex;align-items:center;gap:7px}
.article-meta__item::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--gold);flex:0 0 6px}
.article-hero__note{
  margin-top:22px;padding:12px 16px;border-radius:12px;max-width:820px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  font-size:13.6px;color:#b9c9da;line-height:1.8;
}

/* ---------- article layout ---------- */
.section{padding:52px 0;scroll-margin-top:76px}
.section--alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section--tight{padding:40px 0}
.sec-eyebrow{font-size:12.6px;letter-spacing:2.2px;color:var(--gold-deep);font-weight:700;margin-bottom:10px}
.sec-title{font-size:clamp(20px,2.2vw,26px);color:#132031}
.sec-desc{font-size:15px;color:var(--muted);margin-top:10px;max-width:760px;line-height:1.9}

.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 306px;gap:34px;align-items:start}
.article-panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);padding:34px 36px;min-width:0;
}

/* ---------- cms body typography ---------- */
.article-body{font-size:16.5px;line-height:1.95;color:#243244;overflow-wrap:break-word}
.article-body>*:first-child{margin-top:0}
.article-body h2{
  font-size:21px;line-height:1.55;color:#132031;
  margin:36px 0 14px;padding-left:13px;border-left:4px solid var(--gold);
}
.article-body h3{font-size:17.5px;color:#1a2836;margin:26px 0 10px}
.article-body h4{font-size:16px;color:#1a2836;margin:20px 0 8px}
.article-body p{margin:0 0 16px}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px}
.article-body li{margin-bottom:8px;line-height:1.9}
.article-body blockquote{
  margin:22px 0;padding:16px 20px;background:#f8f4e9;
  border-left:4px solid var(--gold);border-radius:0 12px 12px 0;color:#5a4a22;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:18px 0;max-width:100%;height:auto}
.article-body table{width:100%;border-collapse:collapse;margin:18px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
.article-body th{background:#f5f7fa;color:#22303f;font-weight:700}
.article-body a{color:var(--gold-deep);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:#8a6a1f}
.article-body code{background:#f1f4f9;padding:1px 6px;border-radius:6px;font-size:14.5px}

/* ---------- aside ---------- */
.aside-stack{display:flex;flex-direction:column;gap:18px;position:sticky;top:24px;min-width:0}
.panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);padding:20px 20px;
}
.panel__title{font-size:14.5px;color:#132031;font-weight:800;margin-bottom:12px;display:flex;align-items:center;gap:8px}
.panel__title::before{content:"";width:4px;height:15px;border-radius:2px;background:var(--gold);display:inline-block}
.panel-list{list-style:none;padding:0;display:flex;flex-direction:column;gap:10px}
.panel-list li{font-size:13.8px;color:#4c5c6e;line-height:1.75;padding-left:16px;position:relative}
.panel-list li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:#cbd6e3}
.panel--dark{
  background:linear-gradient(160deg,#0d1826,#1b3category);
  background:linear-gradient(160deg,#0d1826,#1b3149);
  border-color:transparent;color:#cfdcea;
}
.panel--dark .panel__title{color:#fff}
.panel--dark .panel__title::before{background:var(--gold-bright)}
.panel--dark p{font-size:13.6px;color:#a8bacd;line-height:1.8}
.mini-dl{display:flex;flex-direction:column;gap:9px;margin-top:14px}
.mini-dl a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:9px 14px;border-radius:10px;font-size:13.6px;font-weight:600;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);color:#e7eef7;
  transition:background .2s,border-color .2s,transform .2s;
}
.mini-dl a:hover{background:rgba(201,162,74,.2);border-color:rgba(201,162,74,.5);transform:translateX(3px)}
.mini-dl a span{color:#f0d79b;font-size:12px}
.panel-more{
  display:inline-flex;align-items:center;gap:6px;margin-top:14px;
  font-size:13.6px;font-weight:700;color:var(--gold-deep);
  transition:color .2s,transform .2s;
}
.panel-more:hover{color:#8a6a1f;transform:translateX(3px)}

/* ---------- empty state ---------- */
.empty-state{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);padding:56px 32px;text-align:center;
}
.empty-state h1{font-size:23px;color:#132031;margin-bottom:12px}
.empty-state p{font-size:15px;color:var(--muted);margin-bottom:24px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:11px;font-size:15px;font-weight:600;
  border:1px solid transparent;transition:transform .2s,box-shadow .2s,background .2s,color .2s,border-color .2s;
}
.btn-gold{background:linear-gradient(135deg,var(--gold-bright),var(--gold-deep));color:#241a08;box-shadow:0 12px 26px rgba(201,162,74,.28)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(201,162,74,.38)}
.btn-outline{border-color:#c9d4e2;background:#fff;color:#22303f}
.btn-outline:hover{border-color:var(--gold);color:#8a6a1f}

/* ---------- knowledge cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:26px}
.k-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow-sm);min-width:0;
  transition:transform .2s,box-shadow .2s,border-color .2s;
}
.k-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#d3dded}
.k-card__idx{
  width:32px;height:32px;border-radius:9px;display:grid;place-items:center;
  background:rgba(201,162,74,.14);color:var(--gold-deep);font-weight:800;font-size:14px;margin-bottom:14px;
}
.k-card h3{font-size:16.5px;color:#132031;margin-bottom:10px}
.k-card p{font-size:14.6px;color:#556476;line-height:1.85}

/* ---------- formula block ---------- */
.formula-wrap{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:24px;margin-top:26px;align-items:start}
.formula-card{
  background:linear-gradient(160deg,#0d1826,#172c42);color:#cfdcea;
  border-radius:var(--radius-lg);padding:26px 28px;box-shadow:var(--shadow-md);min-width:0;
}
.formula-card h3{font-size:16.5px;color:#fff;margin-bottom:14px}
.formula-code{
  display:block;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.13);
  border-radius:10px;padding:14px 16px;font-size:14.5px;color:#f0d79b;
  letter-spacing:.4px;overflow-wrap:break-word;
}
.formula-card p{font-size:13.8px;color:#a8bacd;line-height:1.85;margin-top:14px}
.check-list{list-style:none;padding:0;display:grid;gap:12px}
.check-list li{
  display:flex;gap:11px;align-items:flex-start;font-size:14.8px;color:#3c4b5c;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:14px 16px;line-height:1.8;box-shadow:var(--shadow-sm);
}
.check-list li b{color:#132031;font-weight:700}
.check-list li::before{
  content:"";width:8px;height:8px;border-radius:50%;background:var(--gold);flex:0 0 8px;margin-top:9px;
}

/* ---------- download ---------- */
.download-section{
  background:linear-gradient(160deg,#0d1826,#16293e 60%,#0f1e2f);
  color:#cfdcea;border:0;
}
.download-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px}
.download-title{font-size:clamp(19px,2.1vw,24px);color:#fff;margin-bottom:10px}
.download-desc{font-size:14.8px;color:#a6b8ca;max-width:640px;line-height:1.9}
.download-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:26px}
.dl-btn{
  display:flex;align-items:center;gap:12px;min-width:0;
  padding:16px;border-radius:13px;border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.06);color:#e7eef7;
  transition:transform .2s,box-shadow .2s,border-color .2s,background .2s;
}
.dl-btn:hover{transform:translateY(-3px);border-color:rgba(201,162,74,.6);background:rgba(201,162,74,.16);box-shadow:0 16px 32px rgba(0,0,0,.25)}
.dl-btn__icon{
  width:40px;height:40px;flex:0 0 40px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--gold-bright),var(--gold-deep));color:#241a08;font-weight:800;font-size:13px;
}
.dl-btn__body{display:flex;flex-direction:column;min-width:0}
.dl-btn__name{font-size:14.8px;font-weight:700;color:#fff}
.dl-btn__sub{font-size:12.4px;color:#9db0c4;margin-top:2px}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;margin-top:26px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);overflow:hidden;transition:border-color .2s,box-shadow .2s;
}
.faq-item[open]{border-color:#d3dded;box-shadow:var(--shadow-md)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:17px 22px;font-size:15.6px;font-weight:700;color:#132031;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:0 0 auto;font-size:19px;color:var(--gold-deep);font-weight:700;line-height:1;
}
.faq-item[open] summary::after{content:"–"}
.faq-item__body{padding:0 22px 18px;font-size:14.8px;color:#556476;line-height:1.9}

/* ---------- risk bar ---------- */
.risk-bar{
  background:#fff;border:1px solid #efe3c8;border-radius:var(--radius);
  padding:18px 22px;font-size:14px;color:#6b5a2e;line-height:1.85;
  box-shadow:var(--shadow-sm);
}
.risk-bar strong{color:#4a3d18}

/* ---------- footer ---------- */
.site-footer{
  margin-top:auto;background:linear-gradient(180deg,#0c1622,#0a1320);
  color:#a8bacd;padding:52px 0 26px;border-top:1px solid rgba(255,255,255,.07);
}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr) minmax(0,1fr);gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand__name{font-size:16px;font-weight:800;color:#fff;letter-spacing:.4px}
.footer-desc{font-size:13.8px;line-height:1.9;color:#93a7bd;max-width:420px}
.footer-note{font-size:12.8px;line-height:1.85;color:#788ba1;margin-top:12px;max-width:440px}
.footer-col h3{font-size:14px;color:#fff;margin-bottom:14px;font-weight:700}
.footer-col ul{list-style:none;padding:0;display:grid;gap:9px}
.footer-col a{font-size:13.6px;color:#9db0c4;transition:color .2s,transform .2s;display:inline-block}
.footer-col a:hover{color:var(--gold-bright);transform:translateX(2px)}
.footer-bottom{
  margin-top:34px;padding-top:18px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:12.8px;color:#7c8fa5;
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .container{padding:0 22px}
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .aside-stack{position:static;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .formula-wrap{grid-template-columns:minmax(0,1fr)}
  .download-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
}
@media (max-width:768px){
  body{font-size:15.5px}
  .section{padding:42px 0}
  .article-hero{padding:34px 0 36px}
  .article-panel{padding:24px 20px}
  .article-body{font-size:16px}
  .article-body h2{font-size:19px}
  .aside-stack{grid-template-columns:minmax(0,1fr)}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .download-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:26px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .article-hero h1{font-size:22px}
  .article-panel{padding:20px 16px}
  .article-body{font-size:15.6px;line-height:1.9}
  .download-grid{gap:12px}
  .dl-btn{padding:13px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category1 */
:root{
  --ink:#0d1826;
  --ink-2:#16293e;
  --ink-3:#1e344b;
  --gold:#c9a24a;
  --gold-bright:#dcb862;
  --gold-deep:#a9852f;
  --paper:#f5f7fa;
  --card:#ffffff;
  --text:#1b2531;
  --muted:#5f6d7e;
  --line:#e3e9f1;
  --radius-lg:18px;
  --radius:12px;
  --radius-sm:9px;
  --shadow-sm:0 1px 2px rgba(13,24,38,.06);
  --shadow-md:0 12px 32px rgba(13,24,38,.09);
  --shadow-lg:0 24px 56px rgba(13,24,38,.14);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  display:grid;
  grid-template-columns:260px minmax(0,1fr);
  align-items:start;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%;height:auto}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0}
p{margin:0 0 14px}
p:last-child{margin-bottom:0}
h1,h2,h3,h4{margin:0}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:6px}

/* ============ 侧栏主导航 ============ */
.side-nav{
  position:sticky;top:0;align-self:start;height:100vh;
  display:flex;flex-direction:column;gap:20px;
  padding:26px 18px 20px;
  background:linear-gradient(180deg,#0c1622,#132437 55%,#0c1622);
  color:#c7d3e1;overflow-y:auto;z-index:60;
}
.brand{display:flex;align-items:center;gap:11px;padding-bottom:18px;border-bottom:1px solid rgba(255,255,255,.09)}
.brand__mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  background:linear-gradient(135deg,var(--gold-bright),var(--gold-deep));
  display:grid;place-items:center;color:#241a08;font-weight:800;font-size:17px;
  box-shadow:0 8px 18px rgba(201,162,74,.28);
}
.brand__text{display:flex;flex-direction:column;line-height:1.35;min-width:0}
.brand__name{font-size:15.5px;font-weight:700;color:#fff;letter-spacing:.4px}
.brand__sub{font-size:11.5px;color:#8ea2b8;letter-spacing:1.4px}
.nav-list{display:flex;flex-direction:column;gap:6px;list-style:none}
.nav-link{
  display:flex;align-items:center;gap:10px;padding:10px 13px;border-radius:10px;
  font-size:14.5px;color:#b9c6d6;transition:background .2s,color .2s,box-shadow .2s;
}
.nav-link .dot{width:6px;height:6px;border-radius:50%;background:currentColor;opacity:.55;flex:0 0 6px}
.nav-link:hover{background:rgba(255,255,255,.08);color:#fff}
.nav-link.active{background:rgba(201,162,74,.16);color:#f2d99d;box-shadow:inset 0 0 0 1px rgba(201,162,74,.36)}
.side-card{
  margin-top:auto;padding:16px;border-radius:14px;
  background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.1);
}
.side-card__title{font-size:13.5px;font-weight:700;color:#f0d79b;margin-bottom:6px}
.side-card__text{font-size:12.8px;color:#a3b4c6;line-height:1.7}
.side-card__btn{
  display:inline-flex;margin-top:12px;padding:8px 16px;border-radius:999px;
  background:linear-gradient(135deg,var(--gold-bright),var(--gold-deep));
  color:#241a08;font-size:13px;font-weight:700;transition:transform .2s,box-shadow .2s;
}
.side-card__btn:hover{transform:translateY(-2px);box-shadow:0 10px 20px rgba(201,162,74,.3)}
.topbar{display:none}
.nav-backdrop{display:none}

/* ============ 主内容 ============ */
.app-main{min-width:0;display:flex;flex-direction:column;min-height:100vh}
.container{width:100%;max-width:1120px;margin:0 auto;padding:0 28px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:11px;font-size:15px;font-weight:600;
  border:1px solid transparent;transition:transform .2s,box-shadow .2s,background .2s,color .2s,border-color .2s;
}
.btn-gold{background:linear-gradient(135deg,var(--gold-bright),var(--gold-deep));color:#241a08;box-shadow:0 12px 26px rgba(201,162,74,.3)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(201,162,74,.4)}
.btn-ghost{border-color:rgba(255,255,255,.3);color:#e8f0f8}
.btn-ghost:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.52)}
.btn-outline{border-color:#c9d4e2;background:#fff;color:#22303f}
.btn-outline:hover{border-color:var(--gold);color:#8a6a1f}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  padding:52px 0 58px;
  background:
    radial-gradient(900px 360px at 12% 0%,rgba(201,162,74,.18),transparent 62%),
    radial-gradient(700px 320px at 92% 12%,rgba(70,120,170,.24),transparent 60%),
    linear-gradient(170deg,#0d1826,#16293e 62%,#0f1e2f);
  color:#e7eef7;
}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);gap:40px;align-items:start}
.region-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.region-tag{
  font-size:12.8px;padding:5px 13px;border-radius:999px;
  border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.055);color:#cfdcea;
}
.hero h1{
  font-size:clamp(24px,2.8vw,35px);line-height:1.36;letter-spacing:.3px;
  font-weight:800;color:#fff;margin-bottom:16px;
}
.hero-lead{font-size:15.4px;color:#b6c7d9;line-height:1.95;max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.hero-panel{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius-lg);padding:22px 22px 18px;min-width:0;
  box-shadow:0 20px 42px rgba(6,13,22,.35);
}
.hero-panel__title{font-size:12.6px;letter-spacing:1.2px;color:#f0d79b;font-weight:700;margin-bottom:6px}
.hero-panel__note{font-size:12.4px;color:#93a7bb;line-height:1.7;margin-top:12px}
.buff-row{display:flex;align-items:baseline;justify-content:space-between;gap:14px;padding:11px 0;border-bottom:1px dashed rgba(255,255,255,.14);min-width:0}
.buff-row:last-of-type{border-bottom:0}
.buff-row__k{font-size:13.6px;color:#cfdcea;min-width:0}
.buff-row__k small{display:block;font-size:11.8px;color:#8fa3b8;letter-spacing:.2px}
.buff-row__v{font-size:15px;font-weight:800;color:#f2d99d;white-space:nowrap}

/* ============ 通用 section ============ */
.section{padding:58px 0;scroll-margin-top:76px}
.section--alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section--dark{background:linear-gradient(160deg,#0d1826,#172c42);color:#cfdcea;border:0}
.sec-eyebrow{font-size:12.4px;letter-spacing:2.2px;color:var(--gold-deep);font-weight:700;margin-bottom:10px}
.sec-title{font-size:clamp(20px,2.2vw,26px);line-height:1.45;font-weight:800;color:#132031;margin-bottom:12px}
.sec-desc{font-size:15px;color:var(--muted);line-height:1.9;max-width:780px}
.section--dark .sec-title{color:#fff}
.section--dark .sec-desc{color:#a6b8ca}
.section--dark .sec-eyebrow{color:#e5c67f}
.sec-head{margin-bottom:32px}

/* ============ 卡片网格 ============ */
.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.cat-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px;min-width:0;box-shadow:var(--shadow-sm);
  transition:transform .2s,box-shadow .2s,border-color .2s;
}
.cat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#d3dded}
.cat-card__no{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:rgba(201,162,74,.14);color:var(--gold-deep);font-weight:800;font-size:14px;margin-bottom:14px;
}
.cat-card h3{font-size:17px;font-weight:800;color:#132031;margin-bottom:9px;line-height:1.5}
.cat-card p{font-size:14.4px;color:var(--muted);line-height:1.9}
.chip{
  display:inline-flex;align-items:center;padding:4px 11px;border-radius:999px;
  background:rgba(201,162,74,.12);color:#8a6a1f;font-size:12.6px;font-weight:600;
  border:1px solid rgba(201,162,74,.28);
}
.chip--sm{font-size:11.8px;padding:3px 9px}

/* ============ 杠杆对照 ============ */
.lev-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.lev-card{
  border-radius:var(--radius-lg);padding:24px;min-width:0;
  background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.14);
  transition:transform .2s,border-color .2s,background .2s;
}
.lev-card:hover{transform:translateY(-3px);border-color:rgba(201,162,74,.45);background:rgba(255,255,255,.08)}
.lev-card__top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px}
.lev-card__name{font-size:17px;font-weight:800;color:#fff}
.lev-card__tag{font-size:11.8px;padding:3px 9px;border-radius:999px;background:rgba(201,162,74,.2);color:#f2d99d;white-space:nowrap}
.lev-list{list-style:none;display:flex;flex-direction:column;gap:10px}
.lev-list li{display:flex;justify-content:space-between;gap:12px;font-size:13.8px;color:#b9c9da;padding-bottom:9px;border-bottom:1px dashed rgba(255,255,255,.12);min-width:0}
.lev-list li:last-child{border-bottom:0;padding-bottom:0}
.lev-list b{color:#f2d99d;font-weight:800;white-space:nowrap}
.lev-foot{
  margin-top:22px;padding:16px 18px;border-radius:var(--radius);
  background:rgba(201,162,74,.1);border:1px solid rgba(201,162,74,.26);
  font-size:13.6px;color:#c9d7e5;line-height:1.85;
}

/* ============ 成本核算 ============ */
.cost-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.cost-item{
  display:flex;gap:16px;padding:22px;border-radius:var(--radius-lg);
  background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm);min-width:0;
  transition:box-shadow .2s,border-color .2s;
}
.cost-item:hover{box-shadow:var(--shadow-md);border-color:#d3dded}
.cost-item__key{
  flex:0 0 42px;width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,#f2e6c9,#e2cf9d);color:#6d5316;font-weight:800;font-size:13px;
}
.cost-item__body{min-width:0}
.cost-item h3{font-size:16px;font-weight:800;color:#132031;margin-bottom:7px}
.cost-item p{font-size:14.2px;color:var(--muted);line-height:1.9}
.formula{
  margin-top:10px;display:inline-block;padding:6px 12px;border-radius:var(--radius-sm);
  background:#f2f5f9;border:1px solid var(--line);font-size:13px;color:#33465c;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

/* ============ 场景卡片 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.scene-card{
  padding:22px;border-radius:var(--radius-lg);background:#fff;border:1px solid var(--line);
  min-width:0;box-shadow:var(--shadow-sm);transition:transform .2s,box-shadow .2s;
}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.scene-card h3{font-size:16px;font-weight:800;color:#132031;margin-bottom:8px;display:flex;align-items:center;gap:9px;flex-wrap:wrap}
.scene-card p{font-size:14.3px;color:var(--muted);line-height:1.9}

/* ============ 风控清单 ============ */
.check-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;list-style:none}
.check-list li{
  display:flex;gap:12px;padding:16px 18px;border-radius:var(--radius);
  background:#fff;border:1px solid var(--line);font-size:14.3px;color:#31445a;line-height:1.85;
  min-width:0;transition:border-color .2s,box-shadow .2s;
}
.check-list li:hover{border-color:rgba(201,162,74,.5);box-shadow:var(--shadow-sm)}
.check-list .mark{
  flex:0 0 22px;width:22px;height:22px;border-radius:7px;display:grid;place-items:center;
  background:rgba(201,162,74,.16);color:var(--gold-deep);font-size:12px;font-weight:800;margin-top:2px;
}

/* ============ 流程 ============ */
.step-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;counter-reset:step}
.step-card{
  position:relative;padding:22px 20px 20px;border-radius:var(--radius-lg);
  background:#fff;border:1px solid var(--line);min-width:0;box-shadow:var(--shadow-sm);
}
.step-card__idx{
  width:30px;height:30px;border-radius:9px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--gold-bright),var(--gold-deep));color:#241a08;
  font-weight:800;font-size:13.5px;margin-bottom:13px;
}
.step-card h3{font-size:15.5px;font-weight:800;color:#132031;margin-bottom:7px;line-height:1.5}
.step-card p{font-size:13.9px;color:var(--muted);line-height:1.85}

/* ============ FAQ ============ */
.faq-wrap{display:grid;gap:12px;max-width:900px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:0 20px;transition:border-color .2s,box-shadow .2s;
}
.faq-item[open]{border-color:rgba(201,162,74,.5);box-shadow:var(--shadow-sm)}
.faq-item summary{
  cursor:pointer;list-style:none;padding:17px 30px 17px 0;position:relative;
  font-size:15.4px;font-weight:700;color:#132031;line-height:1.65;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";position:absolute;right:0;top:50%;transform:translateY(-50%);
  font-size:19px;color:var(--gold-deep);font-weight:700;line-height:1;
}
.faq-item[open] summary::after{content:"–"}
.faq-item__body{padding:0 0 18px;font-size:14.4px;color:var(--muted);line-height:1.95}

/* ============ 资讯列表 ============ */
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.post-card{
  display:flex;flex-direction:column;gap:10px;padding:22px;border-radius:var(--radius-lg);
  background:#fff;border:1px solid var(--line);min-width:0;box-shadow:var(--shadow-sm);
  transition:transform .2s,box-shadow .2s,border-color .2s;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#d3dded}
.post-card__title{font-size:15.6px;font-weight:800;color:#132031;line-height:1.6;transition:color .2s}
.post-card:hover .post-card__title{color:var(--gold-deep)}
.post-card__desc{font-size:13.9px;color:var(--muted);line-height:1.85;flex:1 1 auto}
.post-card__meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:12.6px;color:#8b9aab}
.list-empty{
  padding:24px;border-radius:var(--radius);background:#fff;border:1px dashed var(--line);
  color:var(--muted);font-size:14.2px;text-align:center;
}

/* ============ 下载区 ============ */
.download-title{font-size:clamp(19px,2vw,24px);line-height:1.5;font-weight:800;color:#132031;margin-bottom:10px}
.download-lead{font-size:14.8px;color:var(--muted);line-height:1.9;max-width:720px;margin-bottom:26px}
.download-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.dl-btn{
  display:flex;align-items:center;gap:12px;min-width:0;
  padding:16px;border-radius:13px;border:1px solid #dde5ef;background:#f8fafc;
  transition:transform .2s,box-shadow .2s,border-color .2s,background .2s;
}
.dl-btn:hover{transform:translateY(-3px);border-color:var(--gold);background:#fff;box-shadow:var(--shadow-md)}
.dl-btn__icon{
  flex:0 0 40px;width:40px;height:40px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,#0d1826,#1e344b);color:#f0d79b;font-size:13px;font-weight:800;
}
.dl-btn__text{display:flex;flex-direction:column;min-width:0;line-height:1.4}
.dl-btn__name{font-size:15px;font-weight:800;color:#132031}
.dl-btn__sub{font-size:12.4px;color:#7d8b9c;margin-top:3px}
.download-note{font-size:13.2px;color:#8996a6;line-height:1.8;margin-top:18px}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:auto;padding:52px 0 24px;color:#a9b9ca;
  background:linear-gradient(180deg,#0c1622,#132437);
}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr) minmax(0,1fr);gap:34px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:14px}
.footer-brand__name{font-size:16px;font-weight:800;color:#fff;letter-spacing:.4px}
.footer-desc{font-size:14px;color:#a9b9ca;line-height:1.9;max-width:440px}
.footer-note{font-size:12.8px;color:#8ea2b8;line-height:1.85;margin-top:12px;max-width:440px}
.footer-col h3{font-size:14px;font-weight:700;color:#f0d79b;margin:0 0 14px;letter-spacing:.4px}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:9px}
.footer-col a{font-size:14px;color:#a9b9ca;transition:color .2s}
.footer-col a:hover{color:#fff}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  margin-top:34px;padding-top:18px;border-top:1px solid rgba(255,255,255,.1);
  font-size:13px;color:#8296ab;
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  body{display:block}
  .side-nav{
    position:fixed;top:0;left:0;bottom:0;height:100vh;width:278px;
    transform:translateX(-102%);transition:transform .3s ease;z-index:90;
  }
  body.nav-open .side-nav{transform:translateX(0);box-shadow:0 0 60px rgba(0,0,0,.45)}
  .nav-backdrop{position:fixed;inset:0;background:rgba(8,15,24,.55);z-index:80}
  body.nav-open .nav-backdrop{display:block}
  .topbar{
    display:flex;align-items:center;gap:12px;position:sticky;top:0;z-index:70;
    padding:11px 18px;background:rgba(13,24,38,.97);color:#fff;
    border-bottom:1px solid rgba(255,255,255,.1);
  }
  .topbar .brand__mark{width:34px;height:34px;flex:0 0 34px;border-radius:10px;font-size:15px}
  .topbar__name{font-size:14.6px;font-weight:700;color:#fff;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .nav-toggle{
    margin-left:auto;flex:0 0 auto;width:40px;height:40px;border-radius:11px;
    display:grid;place-items:center;gap:4px;border:1px solid rgba(255,255,255,.2);
    background:rgba(255,255,255,.06);
  }
  .nav-toggle span{display:block;width:17px;height:2px;border-radius:2px;background:#e5eef7}
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .hero-panel{max-width:none}
  .feature-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .lev-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .step-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .post-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .footer-grid > div:first-child{grid-column:1 / -1}
  .container{padding:0 22px}
}
@media (max-width:768px){
  body{font-size:15.5px}
  .section{padding:46px 0}
  .feature-grid,.lev-grid,.cost-grid,.scene-grid,.check-list,.step-grid,.post-grid,.download-grid{grid-template-columns:minmax(0,1fr)}
  .hero{padding:40px 0 46px}
  .hero-lead{font-size:14.6px}
  .sec-head{margin-bottom:24px}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .hero h1{font-size:22.5px}
  .hero-actions .btn{width:100%}
  .cat-card,.lev-card,.scene-card,.post-card,.cost-item{padding:18px}
  .cost-item{flex-direction:column;gap:12px}
  .buff-row{flex-wrap:wrap;gap:4px}
  .buff-row__v{font-size:14.4px}
  .dl-btn{padding:14px}
}