:root{color-scheme:light;--ink:#172033;--muted:#5c6678;--line:#dbe1ea;--blue:#1d4ed8;--blue-soft:#eef4ff;--amber:#8a4b08;--amber-soft:#fff6e5;--green:#166534;--green-soft:#ecfdf3;--bg:#f7f9fc;--card:#fff}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.7 system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Noto Sans CJK SC",sans-serif}a{color:var(--blue)}.wrap{max-width:1060px;margin:0 auto;padding:0 22px}.top{border-bottom:1px solid var(--line);background:#fff}.nav{display:flex;gap:20px;align-items:center;justify-content:space-between;min-height:64px}.brand{font-weight:800;letter-spacing:.02em;color:var(--ink);text-decoration:none}.links{display:flex;gap:16px;flex-wrap:wrap;font-size:14px}.hero{padding:64px 0 36px;background:linear-gradient(135deg,#fff 0%,#edf4ff 100%)}.eyebrow{color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.09em;text-transform:uppercase}.hero h1{font-size:clamp(32px,6vw,58px);line-height:1.12;max-width:780px;margin:12px 0 16px}.lead{font-size:20px;color:var(--muted);max-width:760px}.notice{margin:24px 0;padding:16px 18px;border:1px solid #b9d1ff;border-left:5px solid var(--blue);border-radius:10px;background:var(--blue-soft)}.notice strong{display:block}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;margin:30px 0}.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px;box-shadow:0 8px 24px rgba(22,32,51,.04)}.card h2,.card h3{margin:0 0 8px;line-height:1.3}.card p{margin:8px 0;color:var(--muted)}.tag{display:inline-block;border-radius:999px;padding:2px 9px;font-size:12px;font-weight:700;background:var(--green-soft);color:var(--green)}.tag.warn{background:var(--amber-soft);color:var(--amber)}main{padding:34px 0 70px}h1{line-height:1.2}h2{margin-top:34px;border-bottom:1px solid var(--line);padding-bottom:8px}h3{margin-top:26px}pre{overflow:auto;padding:16px;border-radius:10px;background:#182235;color:#eef4ff;font-size:14px}code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace}table{border-collapse:collapse;width:100%;margin:16px 0;background:#fff}th,td{border:1px solid var(--line);padding:9px 11px;text-align:left;vertical-align:top}th{background:#f0f4fa}.callout{padding:16px 18px;border:1px solid #f0d7a7;border-left:5px solid #d97706;border-radius:10px;background:var(--amber-soft)}.footer{border-top:1px solid var(--line);padding:26px 0 42px;color:var(--muted);font-size:14px}.small{color:var(--muted);font-size:14px}.check{color:var(--green);font-weight:700}.cross{color:var(--amber);font-weight:700}@media(max-width:650px){.nav{align-items:flex-start;flex-direction:column;padding:14px 0}.hero{padding-top:42px}.lead{font-size:18px}}