:root{--bg: #f6f7fb;--surface: #ffffff;--surface-2: #eef0f6;--text: #16181d;--text-dim: #5b6070;--border: #dcdfe8;--accent: #7c3aed;--accent-hover: #6d28d9;--danger: #dc2626;--warn-bg: #fff7ed;--warn-border: #fdba74;--warn-text: #9a3412;--info-bg: #eff6ff;--info-border: #93c5fd;--info-text: #1e40af;--radius: 12px;--shadow: 0 1px 3px rgba(16, 18, 25, .08), 0 4px 16px rgba(16, 18, 25, .06)}[data-theme=dark]{--bg: #0f1117;--surface: #181b23;--surface-2: #21252f;--text: #e8eaf0;--text-dim: #9aa0b0;--border: #2c3140;--accent: #8b5cf6;--accent-hover: #a78bfa;--warn-bg: #2a1e0e;--warn-border: #92600e;--warn-text: #fbbf24;--info-bg: #101c30;--info-border: #1e4d8f;--info-text: #93c5fd;--shadow: 0 1px 3px rgba(0, 0, 0, .4), 0 4px 16px rgba(0, 0, 0, .3)}*{box-sizing:border-box}body{margin:0;font-family:Segoe UI,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);transition:background .2s,color .2s}.app{max-width:1440px;margin:0 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