:root{--ink:#172033;--muted:#5f6b7a;--line:#e5eaf1;--bg:#f5f7fb;--card:#fff;--blue:#1d4ed8;--gold:#b8872b;--radius:22px}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,"Microsoft YaHei",sans-serif;background:var(--bg);color:var(--ink);line-height:1.75}a{color:var(--blue);text-decoration:none}header{background:rgba(255,255,255,.94);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:18px clamp(18px,5vw,70px);backdrop-filter:blur(14px)}.brand{font-weight:900;color:#0f172a;font-size:22px;white-space:nowrap}nav{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}nav a{color:#475569;padding:8px 11px;border-radius:999px;font-size:14px;font-weight:700}nav a:hover{background:#eef4ff;color:#1d4ed8}main{max-width:1180px;margin:0 auto;padding:34px 18px}.hero{display:grid;grid-template-columns:1fr 330px;gap:24px;background:linear-gradient(135deg,#fff,#eef4ff);border:1px solid var(--line);border-radius:30px;padding:42px;box-shadow:0 18px 50px rgba(15,23,42,.08)}.hero h1{font-size:clamp(34px,5vw,58px);line-height:1.12;margin:8px 0 14px;letter-spacing:-.045em;color:#0f172a}.hero p{font-size:18px;color:#526173}.eyebrow{color:var(--gold);font-weight:900;letter-spacing:.12em}.hero aside{background:#0f172a;color:#fff;border-radius:24px;padding:24px}.hero aside p{color:#cbd5e1;font-size:15px}.content,.cards article,.seo-image{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 12px 34px rgba(15,23,42,.06)}.content{padding:30px;margin:22px 0}.content h2{font-size:28px;margin-top:8px;color:#0f172a}.content h3{font-size:22px;color:#0f172a}.content p,.content li{color:#475569}.note{margin-top:24px;background:#fff7ed;border:1px solid #fed7aa;border-radius:16px;padding:16px;color:#9a3412}.seo-image{margin:22px 0;padding:12px}.seo-image img{display:block;width:100%;height:auto;border-radius:16px}.seo-image figcaption{text-align:center;color:#64748b;padding:10px 4px 2px;font-size:14px}.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}.cards article{padding:22px}.cards h3{margin-top:0}footer{max-width:1180px;margin:28px auto 0;padding:26px 18px 40px;border-top:1px solid var(--line);color:#64748b;font-size:14px}@media(max-width:820px){header{display:block}.brand{display:block;margin-bottom:12px}.hero{grid-template-columns:1fr;padding:26px}.hero h1{font-size:34px}nav{justify-content:flex-start}.content{padding:22px}}