*,*:before,*:after{box-sizing:border-box}:root{--primary: #22d3ee;--primary-light: #ecfeff;--sidebar-hover: rgba(236, 254, 255, .95);--text-primary: #0f172a;--text-secondary: #475569;--text-muted: #94a3b8;--border: #d9e6ee;--shadow-sm: 0 1px 3px rgba(15, 23, 42, .06);--font-sans: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", 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