:root{--ink:#203049;--muted:#606e81;--blue:#3457d5;--blue-dark:#2844ad;--blue-wash:#edf1fc;--line:#e1e6ee;--canvas:#f5f7fa;--body:'Manrope','Noto Sans SC',system-ui,-apple-system,'PingFang SC','Microsoft YaHei',sans-serif}
*{box-sizing:border-box}body.pg{margin:0;background:var(--canvas);color:var(--ink);font:15px/1.8 var(--body);-webkit-font-smoothing:antialiased}
.pg a{color:var(--blue)}.pg a:hover{color:var(--blue-dark)}
.pg-header{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 24px;height:64px;background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.pg-brand{font-weight:800;font-size:21px;letter-spacing:-.8px;color:var(--ink)!important;text-decoration:none;display:flex;align-items:center;gap:10px;white-space:nowrap}.pg-brand span{font-size:11px;font-weight:500;color:var(--muted);border-left:1px solid var(--line);padding-left:10px;letter-spacing:0}
.pg-back{font-size:13px;text-decoration:none;white-space:nowrap}
.pg-main{max-width:880px;margin:0 auto;padding:24px 20px 56px}
.pg-crumbs{font-size:12px;color:var(--muted);display:flex;gap:8px;flex-wrap:wrap;margin-bottom:22px}.pg-crumbs a{text-decoration:none}
.pg-hero{display:flex;gap:18px;align-items:flex-start}.pg-logo{width:56px;height:56px;border-radius:12px;background:#fff;border:1px solid var(--line);object-fit:contain;padding:6px;flex-shrink:0}
.pg h1{font-size:clamp(24px,4vw,34px);line-height:1.35;letter-spacing:-.8px;margin:0 0 8px}
.pg-meta{font-size:12px;color:var(--muted);margin:0}
.pg-lead{font-size:16px;margin:22px 0}
.pg-cta{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px;display:flex;gap:16px;align-items:center;flex-wrap:wrap;margin-bottom:26px}.pg-cta p{margin:0;font-size:12px;color:var(--muted);flex:1;min-width:220px}
.pg-primary{display:inline-flex;align-items:center;min-height:44px;padding:10px 20px;border-radius:8px;background:var(--blue);color:#fff!important;text-decoration:none;font-weight:600;font-size:14px;white-space:nowrap}.pg-primary:hover{background:var(--blue-dark)}
.pg-figure{margin:0 0 28px}.pg-figure img{width:100%;height:auto;border-radius:12px;border:1px solid var(--line);background:#fff;display:block}.pg-figure figcaption{font-size:12px;color:var(--muted);margin-top:8px}
.pg-toc{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 10px}.pg-toc a{font-size:12px;text-decoration:none;background:var(--blue-wash);border-radius:6px;padding:4px 10px}
.pg section{margin-top:40px}.pg h2{font-size:22px;letter-spacing:-.4px;margin:0 0 14px;line-height:1.4}.pg h3{font-size:16px;margin:0 0 8px}
.pg ul,.pg ol{padding-left:20px;margin:0 0 12px}.pg li{margin:6px 0}
.pg-two{display:grid;grid-template-columns:1fr 1fr;gap:14px}.pg-box{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px}.pg-yes{border-top:3px solid #4f9a6b}.pg-no{border-top:3px solid #c88a3a}
.pg-features{display:grid;grid-template-columns:1fr 1fr;gap:14px}.pg-feature{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px}.pg-feature ul{font-size:14px}
.pg-note{font-size:13px;color:var(--muted)}
.pg-table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:10px;background:#fff;margin-bottom:14px}
.pg table{border-collapse:collapse;width:100%;min-width:560px;font-size:13px}.pg th,.pg td{padding:9px 12px;border-bottom:1px solid #edf1f6;text-align:left;vertical-align:top}.pg thead th{background:#f3f6fb;color:#4f6380;font-weight:600}.pg tbody th{font-weight:600;color:#33476a}.pg tr:last-child th,.pg tr:last-child td{border-bottom:0}
.pg-caveat{background:#fff8ec;border:1px solid #f0dcb8;border-radius:10px;padding:12px 14px;font-size:13px}
.pg-updates{list-style:none;padding:0}.pg-updates li{display:grid;grid-template-columns:110px 1fr;gap:12px;padding:8px 0;border-bottom:1px solid var(--line);margin:0}.pg-updates time{color:var(--muted);font-size:13px;font-variant-numeric:tabular-nums}
.pg-faq{background:#fff;border:1px solid var(--line);border-radius:10px;padding:0 16px;margin-bottom:10px}.pg-faq summary{cursor:pointer;font-weight:600;padding:12px 0;min-height:44px}.pg-faq p{margin:0 0 14px}
.pg-related{list-style:none;padding:0;display:flex;flex-wrap:wrap;gap:8px}.pg-related li{margin:0;background:#fff;border:1px solid var(--line);border-radius:8px;padding:6px 12px;font-size:13px}.pg-related small{color:var(--muted);margin-left:6px}
.pg-sources{font-size:13px}.pg-sources a{overflow-wrap:anywhere}
.pg-footer{border-top:1px solid var(--line);padding:20px 24px;display:flex;gap:14px;flex-wrap:wrap;font-size:12px;color:var(--muted);justify-content:center}.pg-footer a{font-weight:700;color:var(--ink);text-decoration:none}
@media(max-width:640px){.pg-two,.pg-features{grid-template-columns:1fr}.pg-hero{gap:12px}.pg-logo{width:44px;height:44px}.pg-brand span{display:none}.pg-updates li{grid-template-columns:1fr;gap:0}.pg-main{padding:18px 16px 44px}}
.pg-nav{display:flex;gap:16px;align-items:center}
.pg-kicker{font-size:12px;font-weight:600;color:var(--blue);margin:0 0 6px}
.pg-definition{background:#fff;border:1px solid var(--line);border-left:4px solid var(--blue);border-radius:10px;padding:14px 18px}
.pg-glossary{list-style:none;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:12px}.pg-glossary li{margin:0;background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px}.pg-glossary a{text-decoration:none;display:flex;gap:8px;align-items:baseline;flex-wrap:wrap}.pg-glossary span{font-size:12px;color:var(--muted)}.pg-glossary p{margin:6px 0 0;font-size:13px;color:var(--muted)}
@media(max-width:640px){.pg-glossary{grid-template-columns:1fr}.pg-nav{gap:10px}}