:root{--ink:#17314b;--muted:#718096;--line:#dfe7ef;--blue:#1769aa;--blue-deep:#104f82;--bg:#f4f7fb;--mint:#15956d;--danger:#c93535}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:Microsoft YaHei,Arial,sans-serif;font-size:14px}button,input,select,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.52}a{color:var(--blue);text-decoration:none}.shell{display:grid;grid-template-columns:236px 1fr}.shell,aside{min-height:100vh}aside{background:#fff;color:var(--ink);display:flex;flex-direction:column;border-right:1px solid #e2e8ef}.brand{padding:18px 22px 14px}.brand small{margin:0 0 0 54px;color:#7f8b99;letter-spacing:4px;font-size:10px}nav{padding:18px 12px;flex:1 1}nav button{width:100%;padding:12px 14px;text-align:left;color:#31516e;background:transparent;border:0;border-radius:7px;margin-bottom:5px}nav button.active,nav button:hover{color:#087953;background:#e5f6ef}.user{padding:18px 22px;border-top:1px solid 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