:root{--color-bg: #f5f7fa;--color-surface: #ffffff;--color-sidebar: #0b1220;--color-sidebar-active: #111c2e;--color-brand: #c0392b;--color-up: #c0392b;--color-down: #16a34a;--color-text: #1f2937;--color-muted: #6b7280;--color-border: #e5e7eb;--radius: 8px;--shadow: 0 1px 2px rgba(0, 0, 0, .06);--font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif}body{margin:0}