/* 特殊符号工具专用样式 */

.category-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 2px solid #f0f1f5;
}

.tab-btn {
    padding: 10px 20px;
    border: 2px solid #e5e6eb;
    border-radius: 25px;
    background: #fff;
    color: #666;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
}

.tab-btn:hover {
    border-color: #00d4ff;
    color: #00d4ff;
}

.tab-btn.active {
    background: linear-gradient(135deg, #00d4ff 0%, #0099ff 100%);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.3);
}

.symbol-scroll-container {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
    border: 1px solid #e5e6eb;
}

.symbol-scroll {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    max-height: 350px;
    overflow-y: auto;
    padding: 5px;
}

.symbol-scroll::-webkit-scrollbar {
    width: 8px;
}

.symbol-scroll::-webkit-scrollbar-track {
    background: #e9ecef;
    border-radius: 4px;
}

.symbol-scroll::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 4px;
}

.symbol-scroll::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #00d4ff 0%, #0099ff 100%);
}

.symbol-item {
    min-width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    border: 2px solid #e5e6eb;
    border-radius: 10px;
    font-size: 24px;
    cursor: pointer;
    transition: all 0.3s;
    user-select: none;
}

.symbol-item:hover {
    border-color: #00d4ff;
    background: rgba(0, 212, 255, 0.05);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 212, 255, 0.2);
}

.symbol-item:active {
    transform: scale(0.95);
}

@media (max-width: 768px) {
    .category-tabs {
        gap: 8px;
    }
    
    .tab-btn {
        padding: 8px 16px;
        font-size: 13px;
    }
    
    .symbol-item {
        min-width: 45px;
        height: 45px;
        font-size: 20px;
    }
}