:root{--primary-color:#4361ee;--secondary-color:#3a0ca3;--accent-color:#7209b7;--light-color:#f8f9fa;--dark-color:#212529;--gray-color:#6c757d;--success-color:#4cc9f0;--warning-color:#f72585;--collect-color:#7209b7;--border-radius:12px;--box-shadow:0 8px 24px rgba(0,0,0,0.1);--transition:all 0.3s ease}*{margin:0;padding:0;box-sizing:border-box;font-family:'Segoe UI','Microsoft YaHei',sans-serif}body{background-color:#f0f2f5;color:var(--dark-color);line-height:1.6}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}header{background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:white;padding:20px 0;box-shadow:0 4px 12px rgba(0,0,0,0.1);position:sticky;top:0;z-index:100}.header-content{display:flex;justify-content:space-between;align-items:center}.logo{display:flex;align-items:center;gap:15px}.logo i{font-size:2.5rem}.logo h1{font-size:1.8rem;font-weight:700}.logo span{color:var(--success-color)}main{padding:40px 0}.section-title{font-size:1.8rem;margin-bottom:25px;color:var(--secondary-color);display:flex;align-items:center;gap:10px}.section-title i{color:var(--accent-color)}.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:25px;margin-bottom:40px}.tool-card{background:white;border-radius:var(--border-radius);padding:25px;box-shadow:var(--box-shadow);transition:var(--transition);cursor:pointer;border:2px solid transparent}.tool-card:hover{transform:translateY(-5px);border-color:var(--primary-color)}.tool-card i{font-size:2.5rem;color:var(--primary-color);margin-bottom:15px}.tool-card h3{font-size:1.4rem;margin-bottom:10px;color:var(--dark-color)}.tool-card p{color:var(--gray-color);margin-bottom:20px}.use-tool-btn{background-color:var(--primary-color);color:white;border:none;padding:10px 20px;border-radius:6px;font-weight:600;cursor:pointer;transition:var(--transition);width:100%}.use-tool-btn:hover{background-color:var(--secondary-color)}.tool-detail{background:white;border-radius:var(--border-radius);padding:30px;box-shadow:var(--box-shadow);margin-top:30px}.tool-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:25px;padding-bottom:15px;border-bottom:2px solid #f0f2f5}.tool-header h2{font-size:1.6rem;color:var(--secondary-color)}.close-tool{background:none;border:none;font-size:1.5rem;color:var(--gray-color);cursor:pointer;transition:var(--transition)}.tabs{display:flex;gap:10px;margin-bottom:20px;border-bottom:1px solid #eee;padding-bottom:10px}.tab-btn{padding:10px 20px;background:none;border:none;font-size:1rem;color:var(--gray-color);cursor:pointer;border-radius:6px;transition:var(--transition);font-weight:600}.tab-btn.active{background-color:var(--primary-color);color:white}.tab-content{display:none;animation:fadeIn 0.3s ease}.tab-content.active{display:block}@keyframes fadeIn{from{opacity:0}to{opacity:1}}.input-group{margin-bottom:20px}.input-label{display:block;margin-bottom:8px;font-weight:600;color:var(--dark-color)}.text-input{width:100%;padding:12px;border:2px solid #e0e0e0;border-radius:8px;font-size:1rem;transition:var(--transition)}.text-input:focus{outline:none;border-color:var(--primary-color)}textarea.text-input{height:150px;font-family:'Consolas',monospace;font-size:0.9rem}.action-btn{padding:10px 20px;border-radius:6px;border:none;font-weight:600;cursor:pointer;transition:var(--transition);display:inline-flex;align-items:center;gap:8px}.btn-primary{background-color:var(--primary-color);color:white}.btn-primary:hover{background-color:var(--secondary-color)}.article-list{display:grid;gap:20px;margin-top:30px}.article-card{display:flex;background:#fff;border:1px solid #eee;border-radius:8px;overflow:hidden;transition:var(--transition)}.article-card:hover{box-shadow:0 4px 12px rgba(0,0,0,0.08);border-color:var(--primary-color)}.article-thumb{width:180px;height:auto;object-fit:cover;background-color:#eee;flex-shrink:0}.article-body{padding:15px;flex:1;display:flex;flex-direction:column;justify-content:space-between}.article-title{font-size:1.1rem;font-weight:700;margin-bottom:8px;color:var(--dark-color);text-decoration:none;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.article-meta{font-size:0.85rem;color:var(--gray-color);margin-bottom:10px}.article-desc{font-size:0.9rem;color:#555;line-height:1.5;margin-bottom:15px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.article-actions{display:flex;gap:10px}.btn-sm{padding:6px 12px;font-size:0.85rem;border-radius:4px}.btn-collect{background-color:var(--collect-color);color:white;border:none;cursor:pointer}.btn-collect:hover{background-color:#5a189a}.collection-panel{background:#f8f9fa;border-radius:12px;padding:20px;margin-top:40px;border:1px solid #e0e0e0}.collection-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;border-bottom:1px solid #ddd;padding-bottom:10px}.collection-list{list-style:none;max-height:400px;overflow-y:auto}.collection-item{background:white;padding:10px;margin-bottom:10px;border-radius:6px;border-left:3px solid var(--collect-color);box-shadow:0 2px 4px rgba(0,0,0,0.05);display:flex;justify-content:space-between;align-items:center}.collection-info{flex:1;overflow:hidden}.collection-title{font-size:0.9rem;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.collection-source{font-size:0.75rem;color:#999}.btn-delete{color:#ff4d4f;cursor:pointer;background:none;border:none;padding:5px}.result-area{margin-top:20px;border:1px solid #ddd;border-radius:8px;background:#fafafa}.result-tabs{display:flex;background:#eee}.result-tab{padding:8px 15px;cursor:pointer;border:none;background:none;font-size:0.9rem;color:#666}.result-tab.active{background:white;color:var(--primary-color);font-weight:600}.result-content{padding:15px;min-height:150px;max-height:300px;overflow-y:auto;white-space:pre-wrap;font-family:'Consolas',monospace;font-size:0.9rem;display:none}.result-content.active{display:block}@media (max-width:768px){.article-card{flex-direction:column}.article-thumb{width:100%;height:150px}}