:root{font-family:"Segoe UI","Microsoft YaHei",sans-serif;color:#15233b;background:#f7f9fd;font-synthesis:none;--ink:#15233b;--muted:#63738d;--blue:#2f55d4;--line:#dce3ef;--soft:#e9edff;--cyan:#087f8c}*{box-sizing:border-box}body{margin:0}button,input,a{font:inherit}button,a,input,label{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.48}button:focus-visible,a:focus-visible,input:focus-visible,.dropzone:focus-within{outline:3px solid #5286eb;outline-offset:4px}a{color:var(--blue)}.topbar{height:88px;padding:0 max(28px,calc((100vw - 1180px)/2));display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);background:#fff}.brand{display:flex;gap:12px;align-items:center;text-decoration:none;color:var(--ink)}.brand 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