/* Banner */
.list-banner {
    width: 100%;
    max-width: 1440px;
    margin: 0 auto;
    overflow: hidden;
}

.list-banner img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

/* 新闻列表页面专用样式 */
.list-page-content {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 0 40px 0;
    background: #fff;
}

/* 面包屑导航 */
.breadcrumb {
    display: flex;
    align-items: center;
    padding: 70px 0 20px 0;
    margin-bottom: 20px;
    font-size: 18px;
    color: #666;
    text-align: left;
    border-bottom: 1px solid #eee;
}

.breadcrumb-icon {
    width: 18px;
    height: 18px;
    margin-right: 8px;
    vertical-align: middle;
    flex-shrink: 0;
}

.breadcrumb a {
    color: #666666;
    text-decoration: none;
}

.breadcrumb a:hover {
    color: #0754D7;
    text-decoration: underline;
}

/* 左右布局容器 */
.list-layout {
    max-width: 1440px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 275px 1fr;
    gap: 40px;
    padding: 0 0 60px 0;
    position: relative;
}

/* 左侧栏目导航 */
.column-nav {
    position: relative;
    max-width: 275px;
}

.column-nav-title {
    background: #0754D7;
    color: #fff;
    padding: 0;
    padding-right: 25px;
    height: 100px;
    font-size: 32px;
    font-weight: 600;
    margin-bottom: 0;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 30px 30px 0 0;
    border-bottom: 10px solid #003CA3;
}

.column-nav-list {
    list-style: none;
    padding: 0;
    margin: 0;
    background: url('../images/leftbg.png') no-repeat center;
    background-size: cover;
    min-height: 679px;

    border-top: none;
}

.column-nav-item {
    border-bottom: 1px solid #e5e5e5;
}

.column-nav-item:last-child {
    border-bottom: none;
}

.column-nav-item a {
    display: flex;
    align-items: center;
    padding: 18px 65px;
    padding-right: 25px;
    color: #333;
    text-decoration: none;
    font-size: 22px;
    transition: all 0.3s ease;
    position: relative;
}

.column-nav-item a::before {
    content: '';
    display: inline-block;
    width: 0;
    height: 0;
    border-top: 6px solid transparent;
    border-bottom: 6px solid transparent;
    border-left: 8px solid #333;
    margin-right: 12px;
    transition: all 0.3s ease;
}

.column-nav-item a:hover,
.column-nav-item.active a {
    color: #0754D7;
    background: #f5f5f5;
}

.column-nav-item a:hover::before,
.column-nav-item.active a::before {
    border-left-color: #0754D7;
}

/* 右侧新闻列表 */
.news-list-section {
    position: relative;
}

.news-list-container {
    background: #fff;
}

.news-list-page {
    list-style: none;
    padding: 0;
    margin: 0;
}

.news-list-page-item {
    display: flex;
    flex-direction: column;
    padding: 20px 0;
    border-bottom: 1px solid #E5E5E5;
    transition: all 0.3s ease;
}

.news-list-page-item:last-child {
    border-bottom: none;
}

.news-item-header {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
}

.news-time-icon {
    width: 18px;
    height: 18px;
    margin-right: 8px;
    flex-shrink: 0;
}

.news-list-page-item .news-date {
    color: #0754D7;
    font-size: 18px;
    white-space: nowrap;
    flex-shrink: 0;
}

.news-item-line {
    width: 120px;
    height: 2px;
    background: #0754D7;
    margin-bottom: 10px;
}

.news-list-page-item .news-title {
    color: #333;
    font-size: 20px;
    line-height: 1.6;
    text-decoration: none;
    transition: color 0.3s ease;
    display: block;
}

.news-list-page-item:hover .news-title {
    color: #0754D7;
}


.column-nav,
.news-list-section {
    position: relative;
    z-index: 1;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .list-layout {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .column-nav {
        display: none;
    }

    .news-list-section {
        order: 1;
    }
}

@media (max-width: 768px) {
    .list-layout {
        padding: 0 15px 40px;
    }

    .column-nav-title {
        font-size: 20px;
        padding: 15px 20px;
    }

    .column-nav-item a {
        font-size: 16px;
        padding: 15px 20px;
    }

    .news-list-page-item {
        flex-wrap: wrap;
        gap: 10px;
    }

    .news-list-page-item .news-date {
        font-size: 14px;
    }

    .news-list-page-item .news-title {
        font-size: 16px;
        width: 100%;
    }
}