:root{color-scheme:light;--accent:#be123c;--secondary:#0f766e;--ink:#102033;--muted:#607085;--line:#dbe5ee;--bg:#f6f9fc;--panel:#fff}
*{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:1.7}a{color:var(--accent);text-decoration:none;font-weight:700}a:hover{text-decoration:underline}.site-header{display:grid;grid-template-columns:minmax(220px,1fr) auto auto;gap:22px;align-items:center;padding:18px 5vw;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:3}.brand{display:block;font-size:22px;color:var(--ink)}.eyebrow{margin:0 0 6px;color:var(--accent);font-weight:800;font-size:13px}.site-header nav{display:flex;gap:16px;flex-wrap:wrap}.domain{color:var(--muted);font-size:14px}.hero{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(320px,.95fr);gap:34px;align-items:center;max-width:1180px;margin:0 auto;padding:46px 5vw 30px}.hero h1{font-size:44px;line-height:1.15;margin:0 0 18px}.hero p{font-size:18px;color:#415268;margin:0 0 22px}.hero-image,.lead-image,.article-card img{width:100%;display:block;border:1px solid var(--line);border-radius:8px;background:#eef5ff;object-fit:contain}.hero-image{aspect-ratio:16/9;box-shadow:0 20px 46px rgba(15,32,51,.12)}.actions{display:flex;gap:12px;flex-wrap:wrap}.button{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:9px 16px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--accent)}.button.primary{background:var(--accent);border-color:var(--accent);color:#fff}.feature-grid{max-width:1180px;margin:0 auto;padding:18px 5vw 28px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.feature-grid article,.note-box,.not-found{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:22px}.feature-grid h2,.section-head h2{margin:0 0 8px}.feature-grid p,.section-head p,.article-card p,.article-detail p,.site-footer p{color:var(--muted)}.content-band{max-width:1180px;margin:0 auto 34px;padding:26px 5vw}.section-head.large{padding:34px 0 16px}.section-head h1{font-size:36px;line-height:1.2;margin:0 0 10px}.article-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.article-card{display:grid;grid-template-columns:180px minmax(0,1fr);gap:18px;background:#fff;border:1px solid var(--line);border-radius:8px;padding:16px}.article-card img{aspect-ratio:16/9}.article-card span{display:inline-block;color:var(--secondary);font-weight:800;font-size:13px;margin-bottom:6px}.article-card h2{font-size:20px;line-height:1.35;margin:0 0 8px}.article-card p{margin:0}.narrow{max-width:980px;margin:0 auto;padding:0 5vw 36px}.article-detail{background:#fff;border:1px solid var(--line);border-radius:8px;padding:28px}.article-detail h1{font-size:38px;line-height:1.2;margin:0 0 14px}.intro{font-size:18px}.lead-image{aspect-ratio:16/9;margin:20px 0 24px}.note-box{margin-top:24px;background:#f8fbff}.sitemap-list{display:grid;gap:10px;padding:0;margin:18px 0 34px;list-style:none}.sitemap-list a{display:block;background:#fff;border:1px solid var(--line);border-radius:8px;padding:14px 16px}.site-footer{border-top:1px solid var(--line);background:#fff;padding:26px 5vw;margin-top:28px}.site-footer strong{font-size:20px}@media (max-width:820px){.site-header{grid-template-columns:1fr;gap:10px;position:static}.hero{grid-template-columns:1fr;padding-top:30px}.hero h1{font-size:32px}.feature-grid,.article-list{grid-template-columns:1fr}.article-card{grid-template-columns:1fr}.domain{font-size:13px}}