:root{--bg:#f6f7fb;--card:#fff;--text:#1c2430;--muted:#617083;--line:#e5eaf1;--brand:#1e4fd7;--brand2:#0f8b8d;--soft:#eef4ff;--shadow:0 16px 45px rgba(22,34,51,.08)}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.7}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto;display:block}.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}.topbar{max-width:1180px;margin:auto;padding:16px 20px;display:flex;align-items:center;justify-content:space-between;gap:20px}.logo,.footer-logo{display:flex;align-items:center;gap:12px}.logo img,.footer-logo img{border-radius:20px;box-shadow:var(--shadow)}.logo strong{font-size:30px;letter-spacing:.02em}.logo 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img{width:100%;height:100%;object-fit:cover}.caption{font-size:13px;color:var(--muted);background:rgba(255,255,255,.94);position:absolute;left:18px;right:18px;bottom:18px;border-radius:18px;padding:12px}.section-title{display:flex;justify-content:space-between;align-items:end;gap:20px;margin:34px 0 16px}.section-title h2{font-size:26px;margin:0}.section-title p{margin:4px 0 0;color:var(--muted)}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}.card{padding:20px}.card h3{margin:10px 0 8px;font-size:20px}.card p{color:var(--muted);margin:0 0 12px}.tag-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.tag{background:#f3f6fa;color:#405166;border-radius:999px;padding:5px 9px;font-size:12px}.video-card{position:relative;padding:0;overflow:hidden}.video-thumb{position:relative;aspect-ratio:16/10;background:#dfe8f5;overflow:hidden}.video-thumb 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figcaption{position:static;background:#f8fafc;margin-top:10px;border-radius:16px;padding:10px;color:var(--muted);font-size:13px}.sidebar{display:grid;gap:18px;align-self:start;position:sticky;top:180px}.json-links a{display:block;padding:10px 0;border-bottom:1px solid var(--line);color:var(--brand);font-weight:800}.site-footer{margin-top:34px;background:#111827;color:#dce6f5}.footer-grid{max-width:1180px;margin:auto;padding:34px 20px;display:grid;grid-template-columns:1.4fr .8fr .9fr;gap:24px}.site-footer a{display:block;color:#fff;margin:7px 0}.site-footer p{color:#b9c6d8}.site-footer h2{font-size:18px;color:#fff}.footer-logo img{background:#fff}.notice{background:#fff7ed;border:1px solid #fed7aa;color:#9a3412;border-radius:18px;padding:14px}.share-row{display:flex;flex-wrap:wrap;gap:10px}.share-row button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 12px;cursor:pointer}@media 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