:root{--bg: #f5f7f6;--surface: #ffffff;--surface-strong: #fbfcfb;--sidebar: #17221d;--text: #1f2b26;--muted: #708079;--line: #dfe7e2;--accent: #1b8a63;--accent-strong: #126646;--accent-soft: #e9f6f1;--gold: #b88835;--shadow: 0 14px 40px rgba(30, 42, 36, .08);font-family:Inter,Microsoft YaHei,PingFang SC,system-ui,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}html,body{width:100%;max-width:100%;overflow-x:hidden}button,input,select{font:inherit}button{cursor:pointer}svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.app-shell{width:100%;max-width:100vw;min-height:100vh;display:block}.sidebar{position:fixed;top:0;left:0;z-index:20;width:248px;height:100vh;padding:18px 14px;background:var(--sidebar);color:#fff;transition:width .18s ease}.sidebar.is-collapsed{width:84px}.brand{width:100%;height:56px;border:0;border-radius:8px;display:flex;align-items:center;gap:12px;padding:0 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