:root{--bg: #f6f7fb;--surface: #ffffff;--surface-2: #f1f2f7;--text: #1a1c26;--text-2: #565a6c;--text-3: #9497a8;--accent: #4f46e5;--accent-weak: #eef0fe;--accent-hover: #4338ca;--success: #16a34a;--success-weak: #e9f9ef;--danger: #dc2626;--danger-weak: #fdeeee;--warning: #d97706;--warning-weak: #fdf3e3;--border: #e7e8f0;--radius: 14px;--shadow-sm: 0 1px 2px rgba(23, 25, 45, .05);--shadow-md: 0 8px 24px rgba(23, 25, 45, .08);--font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", sans-serif;--mono: ui-monospace, SFMono-Regular, Consolas, "Courier New", 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