:root{--primary:#c23a30;--primary-light:#e07b5a;--bg:#faf7f2;--card-bg:#fff;--text:#1e293b;--text-secondary:#64748b;--border:#e2e8f0;--success:#10b981;--warning:#f59e0b;--radius:12px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;min-height:100vh}a{color:var(--primary);text-decoration:none}.topbar{background:linear-gradient(135deg,#1e293b,#334155);color:#fff;padding:0 24px;height:60px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:100}.topbar .logo{font-size:1.2em;font-weight:700;letter-spacing:-.5px}.topbar .logo a{color:#fff;text-decoration:none}.topbar .stats{font-size:.85em;opacity:.7}.container{max-width:1100px;margin:0 auto;padding:24px 20px}.card{background:var(--card-bg);border-radius:var(--radius);border:1px solid var(--border);overflow:hidden;transition:box-shadow .2s,transform 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