:root{font-family:PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;color:#303133;background:#f3f5f8;--shell-aside-bg: linear-gradient(180deg, #1f2d3d 0%, #2d78ba 100%);--shell-aside-border: rgba(255, 255, 255, .08);--shell-menu-text: rgba(255, 255, 255, .72);--shell-menu-active-bg: rgba(64, 158, 255, .2);--shell-menu-active-text: #ffffff;--shell-page-bg: #f3f5f8;--shell-card-shadow: 0 10px 28px rgba(15, 23, 42, .06)}*{box-sizing:border-box}html,body,#app{margin:0;min-height:100%}body{min-height:100vh;background:var(--shell-page-bg)}.page-shell{min-height:100vh}.shell-layout{display:grid;grid-template-columns:236px minmax(0,1fr);min-height:100vh}.shell-aside{padding:18px 12px 16px;background:var(--shell-aside-bg);border-right:1px solid var(--shell-aside-border);color:#fff}.shell-main{padding:18px 20px 20px}.shell-brand-panel{display:flex;align-items:center;gap:12px;padding:12px 12px 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