:root{--color-primary: #2563eb;--color-primary-dark: #1d4ed8;--color-danger: #dc2626;--color-text: #1f2937;--color-text-light: #6b7280;--color-border: #e5e7eb;--color-bg: #f3f4f6;--color-surface: #ffffff;--sidebar-width: 220px;--topbar-height: 56px;font-size:16px}*{box-sizing:border-box}html,body{margin:0;padding:0;width:100%;max-width:100%;overflow-x:hidden}body{font-family:PingFang SC,Hiragino Sans GB,Microsoft YaHei,Noto Sans CJK SC,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;color:var(--color-text);background-color:var(--color-bg);-webkit-font-smoothing:antialiased}#app{min-height:100vh}a{color:var(--color-primary);text-decoration:none}button,input,select,textarea{font-family:inherit}