.mobile-filter-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    display: none;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
}

.modal-content {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: #fff;
    border-radius: 2.66vw 2.66vw 0px 0px;
    max-height: 80%;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background: #fff;
    flex-shrink: 0;
}

.modal-title {
    font-weight: bold;
    font-size: 4vw;
    color: #333333;
}

.btn-confirm {
    background: #ffffff;
    color: #fff;
    border: none;
    font-weight: 500;
    font-size: 4vw;
    color: #126DB3;
}

.modal-body {
    flex: 1;
    overflow-y: auto;
    padding: 0;
}

/* 行业筛选样式 */
.industry-container {
    display: flex;
    height: 400px;
    text-align: left;
}

.big-industry-list, .small-industry-list {
    flex: 1;
}

.big-industry-list{
    position: relative;
}

.big-industry-list::after{
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    width: 1px;
    height: 100%;
    background: linear-gradient(to bottom, #D4D4D4 0%, rgba(212,212,212,0) 100%);
    pointer-events: none;
}

.big-industry-list:last-child {
    border-right: none;
}

.big-industry-list h4, .small-industry-list h4 {
    padding: 15px 20px;
    margin: 0;
    background: #f8f8f8;
    font-size: 14px;
    color: #666;
    border-bottom: 1px solid #eee;
}

.big-industry-list ul, .small-industry-list ul {
    list-style: none;
    padding: 0;
    margin: 0;
    max-height: 350px;
    overflow-y: auto;
}

.big-industry-list li, .small-industry-list li {
    padding: 4vw 6.26vw;
    cursor: pointer;
    font-size: 3.46vw;
    color: #333;
    font-weight: 500;
}

.big-industry-list li:hover, .small-industry-list li:hover {
    background: #f5f5f5;
}

.big-industry-list li.active, .small-industry-list li.active {
    color: #FF5A00;
}

/* 时间筛选样式 */
.time-container {
    padding: 0;
}

.time-container ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.time-container li {
    padding: 15px 20px;
    cursor: pointer;
    font-size: 14px;
    color: #333;
}


.time-container li.active {
    color: #FF5A00;
}

/* 国家筛选样式 */
.country-container {
    display: flex;
    height: 70vh;
}

.letter-list{
    width: 20%;
    /* 使用伪元素实现渐变色右边框 */
    position: relative;
    display: flex;
    flex-direction: column;
}
.letter-list::after {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    width: 1px;
    height: 100%;
    background: linear-gradient(to bottom, #D4D4D4 0%, rgba(212,212,212,0) 100%);
    pointer-events: none;
}
.country-list {
    flex: 1;
    border-right: 1px solid #eee;
    display: flex;
    flex-direction: column;
    text-align: left;
}

.country-list {
    border-right: none;
}

.letter-list h4, .country-list h4 {
    padding: 15px 20px;
    margin: 0;
    font-size: 14px;
    color: #333333;
    flex-shrink: 0;
}

.letter-list ul, .country-list ul {
    list-style: none;
    padding: 0;
    margin: 0;
    flex: 1;
    overflow-y: auto;
}

.letter-list li, .country-list li {
    padding: 4vw 6.26vw;
    cursor: pointer;
    font-size: 3.46vw;
    color: #333;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.letter-list li:hover, .country-list li:hover {
    background: #f5f5f5;
}

.letter-list li.active, .country-list li.active {
    color: #FF5A00;
}

/* 响应式调整 */
@media (max-width: 480px) {
    .modal-content {
        max-height: 80%;
    }
    
    .industry-container, .country-container {
        height: 70vh;
    }
    
    .big-industry-list ul, .small-industry-list ul,
    .letter-list ul, .country-list ul {
        max-height: 70vh;
    }
}