:root{--bg:#f4f7fb;--panel:#fff;--ink:#162033;--muted:#5c6a80;--line:#d9e1ec;--blue:#2457d6;--soft:#e8eefc;--warn:#fff7e8;--shadow:0 10px 28px rgba(28,42,70,.06)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.7}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}.header{border-bottom:1px solid var(--line);background:var(--panel)}.nav{max-width:1080px;margin:0 auto;padding:14px 20px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{color:var(--ink);font-weight:700;font-size:18px;display:flex;align-items:center;gap:9px}.brand i{font-style:normal;color:#fff;background:var(--ink);width:32px;height:32px;display:grid;place-items:center;border-radius:7px;font-size:13px}.links{display:flex;gap:18px;font-size:14px}.wrap{max-width:1080px;margin:0 auto;padding:34px 20px 60px}.crumb{font-size:14px;color:var(--muted);margin-bottom:18px}.hero,.panel,.card{border:1px solid var(--line);border-radius:8px;background:var(--panel);box-shadow:var(--shadow)}.hero{padding:34px}.tag{display:inline-block;border-radius:5px;background:var(--soft);color:var(--blue);font-size:13px;font-weight:700;padding:5px 10px}.hero h1{font-size:clamp(30px,4vw,44px);line-height:1.2;margin:15px 0 12px;letter-spacing:0}.lead{color:var(--muted);font-size:18px;max-width:780px;margin:0}.meta{display:flex;flex-wrap:wrap;gap:18px;margin-top:20px;color:var(--muted);font-size:14px}.notice{margin-top:18px;background:var(--warn);border:1px solid #f0c985;border-radius:6px;padding:12px 14px;color:#714100;font-size:14px}.content{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:20px;margin-top:20px}.panel{padding:26px;margin-bottom:14px}.panel h2{font-size:24px;line-height:1.25;letter-spacing:0;margin:0 0 12px}.panel h3{font-size:18px;margin:20px 0 8px}.panel p{margin:0 0 12px;color:#334257}.steps{margin:0;padding-left:22px;color:#334257}.steps li{margin:8px 0}.sidebar{position:sticky;top:16px;align-self:start}.side-title{font-weight:700;margin:0 0 12px}.related{display:grid;gap:10px}.related a{display:block;padding:10px;border-radius:6px;background:#f7f9fd;border:1px solid var(--line);color:var(--ink);font-size:14px}.index-head{padding:32px;margin-bottom:18px}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.card{padding:18px}.card h2{font-size:18px;line-height:1.4;margin:10px 0 7px}.card p{font-size:14px;color:var(--muted);margin:0}.footer{border-top:1px solid var(--line);margin-top:30px;padding-top:18px;color:var(--muted);font-size:14px}@media(max-width:760px){.nav{align-items:flex-start;flex-direction:column}.content,.grid{grid-template-columns:1fr}.sidebar{position:static}.hero{padding:24px}}