:root{
  --bg:#07111f;
  --panel:#0d1b2a;
  --panel-2:#10243a;
  --text:#eef6ff;
  --muted:#9fb2c7;
  --line:rgba(255,255,255,.11);
  --accent:#52d3a6;
  --accent-2:#f4c76b;
  --max:1180px;
  --radius:20px;
  --shadow:0 24px 70px rgba(0,0,0,.28);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--text);
  background:
    radial-gradient(circle at 15% 10%,rgba(42,146,124,.18),transparent 28rem),
    radial-gradient(circle at 85% 20%,rgba(244,199,107,.10),transparent 26rem),
    var(--bg);
  font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",Arial,sans-serif;
  line-height:1.75;
}
a{color:inherit;text-decoration:none}
img{max-width:100%}
button{font:inherit}
.container{width:min(calc(100% - 32px),var(--max));margin:auto}
.skip-link{position:absolute;left:-9999px;top:auto}
.skip-link:focus{left:16px;top:16px;z-index:9999;background:white;color:#111;padding:10px 14px;border-radius:8px}
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(7,17,31,.84);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{min-height:74px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.02em}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--accent),#3487d8);
  color:#041019;font-weight:900;box-shadow:0 10px 30px rgba(82,211,166,.22)
}
.nav{display:flex;align-items:center;gap:8px}
.nav a{padding:10px 12px;border-radius:10px;color:var(--muted)}
.nav a:hover,.nav a[aria-current="page"]{background:rgba(255,255,255,.07);color:var(--text)}
.menu-btn{display:none;background:transparent;color:white;border:1px solid var(--line);border-radius:10px;padding:8px 12px}
.hero{padding:88px 0 56px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--accent);font-weight:700;font-size:.9rem;letter-spacing:.08em}
.hero h1{font-size:clamp(2.35rem,6vw,5rem);line-height:1.05;max-width:920px;margin:18px 0 22px}
.hero p{max-width:760px;color:var(--muted);font-size:1.08rem}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 18px;border-radius:12px;border:1px solid transparent;
  background:var(--accent);color:#041019;font-weight:800;cursor:pointer
}
.btn.secondary{background:transparent;color:var(--text);border-color:var(--line)}
.btn:hover{transform:translateY(-1px)}
.notice{margin-top:28px;padding:14px 16px;border:1px solid rgba(244,199,107,.35);background:rgba(244,199,107,.08);border-radius:12px;color:#f7deb0}
.section{padding:56px 0}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:24px}
.section h2{font-size:clamp(1.65rem,3vw,2.5rem);line-height:1.2;margin:0}
.section-lead{color:var(--muted);max-width:720px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.025));
  border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)
}
.card h3{margin:6px 0 12px;line-height:1.35}
.card p{color:var(--muted);margin:0}
.card .meta{color:var(--accent);font-size:.86rem;font-weight:700}
.card-link{display:block;height:100%}
.card-link:hover{border-color:rgba(82,211,166,.48)}
.feature-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:20px}
.kpi{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px}
.kpi div{padding:16px;border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.03)}
.kpi strong{display:block;font-size:1.5rem}
.page-hero{padding:64px 0 32px}
.page-hero h1{font-size:clamp(2rem,5vw,3.8rem);line-height:1.1;margin:12px 0}
.breadcrumbs{font-size:.9rem;color:var(--muted)}
.prose{max-width:820px}
.prose h2{margin-top:2.1em}
.prose p,.prose li{color:#ced9e5}
.prose a{text-decoration:underline;text-underline-offset:3px;color:#8fe2c7}
.article-layout{display:grid;grid-template-columns:minmax(0,820px) 280px;gap:42px;align-items:start}
.article-body{background:rgba(255,255,255,.025);border:1px solid var(--line);padding:clamp(22px,4vw,46px);border-radius:var(--radius)}
.article-body p{margin:0 0 1.45em;color:#d4deea}
.article-source{margin-top:30px;padding-top:20px;border-top:1px solid var(--line);color:var(--muted)}
.sidebar{position:sticky;top:96px}
.list{display:grid;gap:14px}
.list-item{padding:16px;border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.03)}
.list-item small{color:var(--accent)}
.faq details{border:1px solid var(--line);border-radius:14px;padding:16px 18px;background:rgba(255,255,255,.025)}
.faq details+details{margin-top:12px}
.faq summary{cursor:pointer;font-weight:800}
.faq p{color:var(--muted)}
.site-footer{margin-top:64px;border-top:1px solid var(--line);padding:34px 0 48px;color:var(--muted)}
.footer-grid{display:grid;grid-template-columns:1.3fr .7fr .7fr;gap:24px}
.footer-links{display:grid;gap:8px}
.copyright{margin-top:24px;padding-top:18px;border-top:1px solid var(--line);font-size:.88rem}
.modal-backdrop{
  position:fixed;inset:0;z-index:100;display:none;place-items:center;padding:20px;
  background:rgba(0,0,0,.68);backdrop-filter:blur(6px)
}
.modal-backdrop.is-open{display:grid}
.modal{
  width:min(100%,520px);background:#0d1b2a;border:1px solid rgba(255,255,255,.16);
  border-radius:22px;padding:26px;box-shadow:0 28px 90px rgba(0,0,0,.5)
}
.modal-top{display:flex;align-items:start;justify-content:space-between;gap:18px}
.modal h2{margin:0 0 10px;line-height:1.2}
.modal p{color:var(--muted)}
.close-btn{background:transparent;border:1px solid var(--line);color:white;width:38px;height:38px;border-radius:10px;cursor:pointer;font-size:1.2rem}
.modal-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}
.source-note{font-size:.86rem;color:var(--muted)}
.tag-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.tag{border:1px solid var(--line);border-radius:999px;padding:4px 10px;color:var(--muted);font-size:.82rem}
@media(max-width:900px){
  .grid{grid-template-columns:repeat(2,1fr)}
  .feature-grid,.article-layout,.footer-grid{grid-template-columns:1fr}
  .sidebar{position:static}
  .nav{display:none;position:absolute;left:16px;right:16px;top:66px;flex-direction:column;align-items:stretch;background:#0c1a29;border:1px solid var(--line);padding:12px;border-radius:14px;box-shadow:var(--shadow)}
  .nav.is-open{display:flex}
  .menu-btn{display:block}
}
@media(max-width:620px){
  .container{width:min(calc(100% - 22px),var(--max))}
  .hero{padding:60px 0 36px}
  .grid,.kpi{grid-template-columns:1fr}
  .section{padding:40px 0}
  .section-head{align-items:start;flex-direction:column}
  .card{padding:20px}
}
@media(prefers-reduced-motion:reduce){
  *{scroll-behavior:auto!important;transition:none!important;animation:none!important}
}