:root{--bg:#f8fafc;--card:#ffffff;--text:#0f172a;--muted:#475569;--border:#e2e8f0;--brand:#0f766e;--brand-soft:#ccfbf1}*{box-sizing:border-box}body,html{margin:0;padding:0;background:radial-gradient(circle at top,#f0fdfa 0,var(--bg) 40%);color:var(--text);font-family:Segoe UI,PingFang SC,Microsoft YaHei,sans-serif}a{color:inherit;text-decoration:none}.container{width:min(1080px,92vw);margin:0 auto}.site-header{position:-webkit-sticky;position:sticky;top:0;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:rgb(248 250 252/80%);border-bottom:1px solid var(--border);z-index:10}.site-header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}.site-nav{display:flex;gap:.8rem;flex-wrap:wrap}.site-nav a{font-size:.95rem;color:var(--muted);padding:.35rem .65rem;border-radius:999px}.site-nav a:hover{color:var(--brand);background:var(--brand-soft)}.site-main{padding:2rem 0 4rem}.card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:1.2rem}.grid{display:grid;grid-gap:1rem;gap:1rem}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.muted{color:var(--muted)}.badge{gap:.25rem;font-size:.8rem;border:1px solid var(--border);padding:.2rem .5rem;border-radius:999px;color:var(--muted)}.badge,.btn{display:inline-flex;align-items:center}.btn{justify-content:center;border-radius:10px;border:1px solid var(--brand);padding:.55rem .9rem;font-weight:600;color:white;background:var(--brand);cursor:pointer}.btn-secondary{background:white;color:var(--brand)}.table{width:100%;border-collapse:collapse}.table td,.table th{padding:.75rem;border-bottom:1px solid var(--border);text-align:left;vertical-align:top}.table th{font-size:.9rem;color:var(--muted)}pre{overflow-x:auto;background:#0f172a;color:#e2e8f0;border-radius:12px;padding:1rem;line-height:1.55}@media (max-width:860px){.grid-2{grid-template-columns:1fr}.site-header-inner{height:auto;padding:.75rem 0;align-items:flex-start;gap:.75rem;flex-direction:column}}