:root{--brand:#1e73be;--brand-d:#16568d;--brand-l:#e8f2fb;--accent:#0693e3;--ink:#0d1b2a;--ink-2:#33475b;--muted:#6b7c93;--line:#e3e9f0;--bg:#fff;--bg-soft:#f6f9fc;--dark:#091426;--dark-2:#0f2038;--radius:10px;--radius-s:6px;--wrap:1180px;--shadow:0 1px 2px #0d1b2a0f, 0 8px 24px -12px #0d1b2a1f}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{color:var(--ink);background:var(--bg);margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Source Han Sans SC,sans-serif;font-size:16px;line-height:1.75}img{max-width:100%;height:auto;display:block}a{color:var(--brand);text-decoration:none}a:hover{color:var(--brand-d);text-decoration:underline}h1,h2,h3,h4{letter-spacing:-.01em;margin:0 0 .5em;font-weight:700;line-height:1.3}h1{font-size:2rem}h2{font-size:1.5rem}h3{font-size:1.15rem}p{margin:0 0 1em}ul,ol{margin:0 0 1em;padding-left:1.35em}li{margin-bottom:.35em}.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}.section{padding:56px 0}.section--soft{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.section--tight{padding:36px 0}.topbar{background:var(--dark);color:#b9c8db;font-size:13px}.topbar .wrap{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;min-height:38px;display:flex}.topbar a{color:#d7e3f2}.topbar-l{flex-wrap:wrap;gap:18px;display:flex}.topbar-r{align-items:center;gap:14px;display:flex}.hdr{z-index:60;border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0}.hdr .wrap{align-items:center;gap:22px;min-height:68px;display:flex}.brand{color:var(--ink);flex-shrink:0;align-items:center;gap:10px;font-weight:800;display:flex}.brand:hover{color:var(--ink);text-decoration:none}.brand-mark{background:linear-gradient(135deg, var(--brand), var(--accent));color:#fff;border-radius:8px;flex-shrink:0;place-items:center;width:36px;height:36px;font-size:17px;font-weight:800;display:grid}.brand-txt{flex-direction:column;line-height:1.15;display:flex}.brand-txt b{letter-spacing:.02em;font-size:16.5px}.brand-txt span{color:var(--muted);letter-spacing:.14em;text-transform:uppercase;font-size:10.5px;font-weight:600}.nav{flex-wrap:wrap;align-items:center;gap:3px;margin-left:auto;display:flex}.nav a{border-radius:var(--radius-s);color:var(--ink-2);white-space:nowrap;padding:8px 11px;font-size:14.5px;font-weight:500}.nav a:hover{background:var(--brand-l);color:var(--brand-d);text-decoration:none}.nav a.on{color:var(--brand);font-weight:700}.btn{border-radius:var(--radius-s);cursor:pointer;white-space:nowrap;border:1px solid #0000;align-items:center;gap:7px;padding:10px 18px;font-size:14.5px;font-weight:600;transition:all 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var(--line);border-radius:var(--radius);background:#fff;flex-direction:column;padding:22px;transition:all .18s;display:flex}.card:hover{box-shadow:var(--shadow);border-color:#bcd6ee;transform:translateY(-2px)}.card h3{margin-bottom:.4em}.card h3 a{color:var(--ink)}.card h3 a:hover{color:var(--brand);text-decoration:none}.card p{color:var(--ink-2);margin-bottom:0;font-size:14.5px}.card-more{margin-top:14px;font-size:14px;font-weight:600}.card--link{padding:0;overflow:hidden}.card--link .thumb{aspect-ratio:16/9;background:var(--bg-soft);object-fit:cover;width:100%}.card--link .body{padding:18px 20px 20px}.card .ico{background:var(--brand-l);width:40px;height:40px;color:var(--brand);border-radius:8px;place-items:center;margin-bottom:14px;font-size:15px;font-weight:800;display:grid}.stats{background:var(--line);border:1px solid var(--line);border-radius:var(--radius);grid-template-columns:repeat(4,1fr);gap:1px;margin-top:34px;display:grid;overflow:hidden}.stat{text-align:center;background:#fff;padding:22px 18px}.stat b{color:var(--brand);letter-spacing:-.02em;font-size:1.9rem;font-weight:800;line-height:1.1;display:block}.stat span{color:var(--muted);font-size:13.5px}.tablewrap{border:1px solid var(--line);border-radius:var(--radius);background:#fff;overflow-x:auto}table.spec{border-collapse:collapse;width:100%;min-width:520px;font-size:14.5px}table.spec caption{caption-side:top;text-align:left;background:var(--bg-soft);border-bottom:1px solid var(--line);color:var(--ink);padding:14px 18px;font-weight:700}table.spec th,table.spec td{text-align:left;border-bottom:1px solid var(--line);vertical-align:top;padding:11px 18px}table.spec thead th{background:var(--bg-soft);color:var(--muted);letter-spacing:.03em;font-size:13px;font-weight:600}table.spec tbody tr:last-child th,table.spec tbody tr:last-child 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h3{margin-top:1.5em}.prose img{border-radius:var(--radius-s);margin:1.2em 0}.prose table{border-collapse:collapse;width:100%;margin:1.2em 0;font-size:14.5px}.prose table th,.prose table td{border:1px solid var(--line);padding:9px 13px}.prose table th{background:var(--bg-soft)}.prose blockquote{border-left:3px solid var(--brand);background:var(--brand-l);border-radius:0 var(--radius-s) var(--radius-s) 0;margin:1.2em 0;padding:12px 20px}.prose figure{margin:1.4em 0}.prose figcaption{color:var(--muted);text-align:center;margin-top:6px;font-size:13px}.prose iframe{border-radius:var(--radius-s);max-width:100%}.split{grid-template-columns:1.55fr 1fr;align-items:start;gap:40px;display:grid}.aside{border:1px solid var(--line);border-radius:var(--radius);background:var(--bg-soft);padding:22px;position:sticky;top:88px}.aside h3{margin-bottom:.7em;font-size:1.02rem}.aside ul{margin:0 0 16px;padding:0;font-size:14.5px;list-style:none}.aside li{border-bottom:1px dashed var(--line);padding:7px 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