:root{color-scheme:light;--ink:#172033;--muted:#64748b;--line:#d8e0ea;--bg:#f6f8fb;--panel:#fff;--brand:#1457d9;--accent:#0f9f7a;--warn:#b45309}
*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.72}
a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}.wrap{max-width:1120px;margin:0 auto;padding:0 22px}
header{background:linear-gradient(180deg,#fff,#eef4ff);border-bottom:1px solid var(--line)}.top{display:flex;gap:18px;align-items:center;justify-content:space-between;padding:18px 0}
.brand{font-size:22px;font-weight:800}.nav{display:flex;gap:14px;flex-wrap:wrap}.nav a{font-size:14px;color:#334155}
.hero{padding:34px 0 42px}.hero h1{font-size:34px;line-height:1.22;margin:0 0 14px}.hero p{max-width:760px;margin:0;color:var(--muted);font-size:17px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin:24px 0}.card{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:18px}
.card h2,.card h3{margin:0 0 10px;font-size:19px}.muted{color:var(--muted)}main{padding:28px 0 46px}
.pill{display:inline-block;border:1px solid #b9c8f6;background:#eef4ff;border-radius:999px;padding:3px 10px;margin:3px 6px 3px 0;font-size:13px;color:#1e40af}
.article{background:#fff;border:1px solid var(--line);border-radius:8px;padding:26px}.article h1{font-size:30px;line-height:1.25;margin:0 0 16px}.article h2{font-size:21px;margin:26px 0 8px}
.notice{border-left:4px solid var(--warn);background:#fff8ed;padding:14px 16px;margin:18px 0}.footer{border-top:1px solid var(--line);padding:22px 0;color:var(--muted);font-size:13px}
.list{display:grid;gap:10px}.list a{display:block;background:#fff;border:1px solid var(--line);border-radius:8px;padding:12px 14px}

/* promo-nav-20260727-v3 */
.home-main{padding-top:0}
.promo-nav{display:grid;gap:4px;margin:0 0 22px}
.promo-nav-link{position:relative;display:block;height:76px;border-radius:0;overflow:hidden;background:#0f172a;color:#fff}
.promo-nav-link:hover{text-decoration:none}
.promo-nav-link img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.promo-nav-link::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(11,16,32,.72),rgba(11,16,32,.24) 45%,rgba(11,16,32,.58))}
.promo-nav-copy{position:absolute;inset:0;z-index:1;display:grid;grid-template-columns:210px 1fr 150px;align-items:center;gap:14px;padding:0 24px;color:#fff;text-shadow:0 2px 4px rgba(0,0,0,.42)}
.promo-nav-left{font-size:23px;font-weight:900;line-height:1;color:#fff}
.promo-nav-text{min-width:0;text-align:center}
.promo-nav-text strong{display:block;font-size:27px;line-height:1.05;color:#fff}
.promo-nav-text span{display:block;margin-top:4px;color:rgba(255,255,255,.9);font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.promo-nav-right{justify-self:end;font-size:22px;font-weight:900;line-height:1.1;color:#fff;text-align:right}
.compact-links{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:8px;margin:10px 0 14px}
.compact-links a{display:block;border:1px solid #c9d6ff;background:#f7faff;border-radius:8px;padding:7px 9px;font-size:13px;line-height:1.45;color:#1d4ed8}
.home-hubs{grid-template-columns:repeat(3,minmax(0,1fr));align-items:stretch}
.home-hubs .card{display:flex;min-height:260px;flex-direction:column}
.home-hubs .card > a{margin-top:auto}
.home-hubs .compact-links{grid-template-columns:repeat(2,minmax(0,1fr));grid-auto-rows:minmax(35px,auto);align-content:start}
.home-hubs .compact-links a{display:flex;align-items:center;min-width:0;overflow:hidden}
@media (max-width:640px){
  .promo-nav{gap:3px;margin-bottom:16px}
  .promo-nav-link{height:58px}
  .promo-nav-copy{grid-template-columns:72px 1fr 64px;gap:8px;padding:0 10px}
  .promo-nav-left{font-size:14px}
  .promo-nav-text strong{font-size:18px}
  .promo-nav-text span{font-size:11px;margin-top:2px}
  .promo-nav-right{font-size:13px}
  .home-hubs{grid-template-columns:1fr}
  .home-hubs .card{min-height:auto}
}