:root{--bg: #0f1117;--card: #1a1d27;--border: #2a2d3a;--text: #e1e4eb;--text-dim: #8b8fa3;--accent: #4f8ff7;--green: #22c55e;--red: #ef4444;--yellow: #eab308}[data-theme=light]{--bg: #f5f7fa;--card: #ffffff;--border: #e1e4eb;--text: #1a1d27;--text-dim: #6b7280;--accent: #4f8ff7;--green: #22c55e;--red: #ef4444;--yellow: #eab308}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.container{max-width:1200px;margin:0 auto;padding:0 24px}.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:20px;box-shadow:0 1px 3px #0003}.grid-4{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px}.stat-card{text-align:center;transition:transform .15s}.stat-card:hover{transform:translateY(-2px)}.stat-card 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