*{box-sizing:border-box;margin:0;padding:0}:root{--bg-primary:#f8fafc;--bg-secondary:#fff;--bg-tertiary:#f1f5f9;--text-primary:#1e293b;--text-secondary:#64748b;--border-color:#e2e8f0;--accent-color:#3b82f6;--accent-hover:#2563eb;--success-color:#10b981;--error-color:#ef4444;--shadow:0 1px 3px #0000001a;--shadow-lg:0 10px 25px #0000001a}.dark-theme{--bg-primary:#0f172a;--bg-secondary:#1e293b;--bg-tertiary:#334155;--text-primary:#f1f5f9;--text-secondary:#94a3b8;--border-color:#334155;--shadow:0 1px 3px #0000004d;--shadow-lg:0 10px 25px #0006}body{background-color:var(--bg-primary);color:var(--text-primary);min-height:100vh;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;line-height:1.6}.app-container{max-width:1400px;margin:0 auto;padding:0 20px}.header{background-color:var(--bg-secondary);border-bottom:1px solid var(--border-color);z-index:100;box-shadow:var(--shadow);padding:16px 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.2s}.category-btn:hover{border-color:var(--accent-color)}.category-btn.active{background:var(--accent-color);color:#fff;border-color:var(--accent-color)}a.ad-banner{text-decoration:none}a.ad-banner:hover{border-color:var(--accent-color);color:var(--accent-color)}.ad-banner{background:var(--bg-secondary);border:1px dashed var(--border-color);text-align:center;min-height:80px;color:var(--text-secondary);cursor:pointer;border-radius:12px;justify-content:center;align-items:center;margin-bottom:24px;padding:16px;font-size:14px;transition:all .2s;display:flex}.ad-banner-header{min-height:60px;margin-top:16px;margin-bottom:8px}.ad-banner-footer{margin-top:24px;margin-bottom:24px}.ad-card{background:linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);border:1px dashed 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#0000000d}.category-nav[data-v-4b8af741]{margin-bottom:32px}.nav-scroll[data-v-4b8af741]{justify-content:center;gap:8px;padding-bottom:8px;display:flex;overflow-x:auto}.category-btn[data-v-4b8af741]{cursor:pointer;color:#475569;white-space:nowrap;background:#fff;border:2px solid #e2e8f0;border-radius:25px;padding:10px 20px;font-size:14px;font-weight:500;transition:all .2s}.category-btn[data-v-4b8af741]:hover{border-color:#cbd5e1}.category-btn.active[data-v-4b8af741]{color:#fff;background:#3b82f6;border-color:#3b82f6}.tools-grid[data-v-4b8af741]{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:20px;display:grid}.tool-card[data-v-4b8af741]{background:#fff;border:1px solid #e2e8f0;border-radius:12px;padding:24px;transition:all .3s}.tool-card[data-v-4b8af741]:hover{border-color:#3b82f6;transform:translateY(-4px);box-shadow:0 12px 24px #00000014}.tool-icon[data-v-4b8af741]{margin-bottom:16px;font-size:40px}.tool-card h3[data-v-4b8af741]{color:#1e293b;margin:0 0 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