:root{--bg:#f5f7f9;--ink:#182b38;--muted:#87949d;--line:#e7edf0;--green:#17a888;--mint:#baf5dc;--navy:#142e30}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.5 "Segoe UI","Microsoft YaHei",sans-serif}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{opacity:.4;cursor:not-allowed}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible,select:focus-visible{outline:3px solid #58cdb3;outline-offset:4px}header{height:88px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;padding:0 max(5%,calc((100vw - 1440px)/2));background:#fff}.brand{color:var(--ink);display:flex;gap:12px;text-decoration:none;align-items:center}.brand-icon{display:grid;place-items:center;width:43px;height:43px;border-radius:13px;background:var(--navy);color:var(--mint);font-size:42px;line-height:1}.brand 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.setting-row select{font-size:11px;color:#527c6e;border:1px solid #dfe8e3;border-radius:5px;padding:5px;background:#f8fbf9;max-width:108px}.quality-info{font-size:10px;color:#7c9990;padding:10px 22px 0}footer a{color:#6b9688;text-decoration:none}@media(max-width:760px){.setting-row select{font-size:10px;max-width:92px;padding:4px}.quality-info{padding:10px 14px 0}.setting-row{flex-wrap:wrap}}