:root{--color-primary: #006EFF;--color-primary-hover: #3A8DFF;--color-primary-active: #0052D9;--color-primary-light: #E8F3FF;--color-success: #00A870;--color-success-light: #E3F9E9;--color-warning: #FF9D00;--color-warning-light: #FFF7E8;--color-danger: #F54A45;--color-danger-light: #FFECE8;--color-info: #2E7FFF;--color-info-light: #E8F3FF;--text-primary: #1D2129;--text-secondary: #4E5969;--text-muted: #86909C;--text-invert: #FFFFFF;--bg-page: #F5F7FA;--bg-card: #FFFFFF;--bg-soft: #F2F3F5;--bg-hover: #F7F8FA;--bg-active: #E8F3FF;--border-color: #E5E6EB;--border-light: #F2F3F5;--border-focus: #006EFF;--radius-sm: 4px;--radius-md: 6px;--radius-lg: 8px;--radius-xl: 12px;--gap-sm: 8px;--gap-md: 16px;--gap-lg: 24px;--gap-xl: 32px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .04);--shadow-md: 0 4px 12px rgba(0, 0, 0, .05);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .08)}*,*:before,*:after{box-sizing:border-box;margin:0;font-weight:400}body{min-height:100vh;background:var(--bg-page);color:var(--text-primary);line-height:1.6;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,PingFang SC,Microsoft YaHei,Helvetica Neue,Arial,sans-serif;font-size:14px;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:var(--color-primary);text-decoration:none;transition:color .15s ease}a:hover{color:var(--color-primary-hover)}h1,h2,h3,h4,h5,h6{color:var(--text-primary);font-weight:600;line-height:1.35}p{color:var(--text-secondary)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#c9cdd4;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#a9aeb8}#app{min-height:100vh;background:var(--bg-page)}.brand-logo{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:8px;background:var(--color-primary);color:#fff;font-size:14px;font-weight:800;letter-spacing:.5px;line-height:1;flex-shrink:0}.brand-logo.lg{width:48px;height:48px;border-radius:12px;font-size:24px}