/* 筛选功能样式 */
.filter-container {
    margin: 1px 0;
}

.filter-main-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 10px;
}

.filter-main-btn {
    padding: 8px 15px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    color: white;
    transition: all 0.3s ease;
}

.filter-main-btn:hover {
    opacity: 0.8;
    transform: translateY(-2px);
}

/* 主按钮颜色 */
.filter-year {
    background-color: #00bb06; /* 与年份元信息一致 */
}

.filter-rating {
    background-color: #000000; /* 黑色 */
}

.filter-quality {
    background-color: #ff0000; /* 与画质元信息一致 */
}

.filter-type {
    background-color: #ff9900; /* 橙色 */
}

.filter-country {
    background-color: #0077ff; /* 蓝色 */
}

.filter-audio {
    background-color: #9900ff; /* 紫色 */
}

.filter-sub-panels {
    display: none;
    padding: 10px;
    background-color: #f5f5f5;
    border-radius: 5px;
    margin-bottom: 10px;
}

.filter-sub-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.filter-sub-btn {
    padding: 5px 10px;
    border: none;
    border-radius: 3px;
    cursor: pointer;
    background-color: #e0e0e0;
    transition: all 0.2s ease;
}

.filter-sub-btn:hover {
    background-color: #d0d0d0;
}

.filter-sub-btn.active {
    background-color: #0077ff;
    color: white;
    position: relative;
}


/* 小屏幕响应式设计 */
@media (max-width: 768px) {
    .filter-main-buttons {
        gap: 5px;
    }
    
    .filter-main-btn {
        padding: 6px 10px;
        font-size: 14px;
    }
    
    .filter-sub-buttons {
        gap: 5px;
    }
    
    .filter-sub-btn {
        padding: 3px 6px;
        font-size: 12px;
    }
}

/* 超小屏幕响应式设计 */
@media (max-width: 480px) {
    .filter-main-buttons {
        gap: 3px;
    }
    
    .filter-main-btn {
        padding: 4px 8px;
        font-size: 12px;
    }
    
    .filter-sub-buttons {
        gap: 3px;
    }
    
    .filter-sub-btn {
        padding: 2px 4px;
        font-size: 11px;
    }
}