:root{color-scheme:light;--bg: #f4f5f7;--surface: #ffffff;--sidebar: #1d2433;--sidebar-muted: #8a93a6;--sidebar-hover: #2a3447;--text: #1c2230;--text-muted: #6b7280;--border: #e3e6ec;--primary: #3b6ef5;--primary-dark: #2f59c9;--danger: #d64545;--success: #1f8a5b;--warning: #a86a10;--radius: 10px;--shadow: 0 1px 2px rgba(20, 28, 45, .06), 0 8px 24px rgba(20, 28, 45, .05)}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;font-size:14px;line-height:1.5}h1,h2{margin:0;font-weight:600}h1{font-size:22px}h2{font-size:15px}code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px}.layout{display:grid;grid-template-columns:232px minmax(0,1fr);min-height:100%}.sidebar{display:flex;flex-direction:column;gap:24px;padding:24px 18px;background:var(--sidebar);color:#eef1f7}.brand{display:flex;flex-direction:column;gap:2px;padding:0 6px}.brand-name{font-size:20px;font-weight:700;letter-spacing:.02em}.brand-tagline{font-size:12px;color:var(--sidebar-muted)}.nav{display:flex;flex-direction:column;gap:4px}.nav-item{padding:9px 12px;border:0;border-radius:8px;background:transparent;color:#cfd6e4;font-size:14px;text-align:left;cursor:pointer}.nav-item:hover{background:var(--sidebar-hover)}.nav-item.active{background:var(--primary);color:#fff}.sidebar-footer{display:flex;flex-direction:column;gap:4px;margin-top:auto;padding:14px 12px 0;border-top:1px solid rgba(255,255,255,.08)}.user-name{font-weight:600;word-break:break-all}.user-region{font-size:12px;color:var(--sidebar-muted)}.main{padding:28px 32px 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