:root{--brand:#123f82;--blue:#246bfe;--blue-2:#eaf1ff;--bg:#f5f7fb;--card:#fff;--text:#1d2638;--muted:#7b879b;--line:#e6ebf3;--success:#27ae7a;--warning:#f2a93b;--danger:#e45d57;--purple:#7b61ff;--shadow:0 8px 26px rgba(25,48,86,.07);font-family:Inter,"SF Pro Display","PingFang SC","Microsoft YaHei",sans-serif;color:var(--text);background:var(--bg);font-synthesis:none}*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:var(--bg)}button,input,select,textarea{font:inherit}button{cursor:pointer}.hidden{display:none!important}.app{min-height:100vh}.sidebar{position:fixed;z-index:30;inset:0 auto 0 0;width:216px;background:#fff;border-right:1px solid var(--line);display:flex;flex-direction:column;transition:.22s}.brand{height:88px;border:0;background:#fff;padding:15px 19px;display:flex;align-items:center;justify-content:flex-start}.brand img{width:165px;height:58px;object-fit:contain}.main-nav{padding:8px 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