/* 基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
}
/* Banner样式 */
.landong-banner {
    width: 100%;
    overflow: hidden;
    position: relative;
    margin: 0;
    padding: 0;
    line-height: 0; /* 防止行高导致的间距 */
}

.banner-img {
    display: block; /* 防止图片底部空白 */
    margin: 0;
    padding: 0;
}

/* 二级导航样式 */
.sub-navigation {
    background-color: #f8f8f8;
    padding: 0px 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    margin-top: 0;
}

.sub-nav-list {
    display: flex;
    justify-content: center;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
    height: 100%;
}

@media (max-width: 768px) {
    .sub-nav-list {
        display: flex !important;
        flex-wrap: nowrap !important;
        justify-content: flex-start;
        white-space: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding: 0 15px;
        width: 100%;
    }
    
    .sub-nav-item {
        flex: 0 0 auto !important;
        margin: 0 10px;
    }
    
    .sub-nav-item a {
        white-space: nowrap;
    }
}

.sub-nav-item {
    margin: 0 15px;
    height: 100%;
    display: flex;
    align-items: center;
}

.sub-nav-item a {
    color: #333;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    padding: 15px 100px;
    transition: color 0.3s ease;
}

.sub-nav-item a:hover {
    color: #0530a9;
}

.sub-nav-item a.active {
    color: white;
    background-color: #0530a9;
    border-radius: 0px;
    padding: 15px 100px;
    font-weight: bold;
}

@media (max-width: 768px) {
    .sub-nav-list {
        flex-wrap: wrap;
    }
    .sub-nav-item {
        margin: 0px 10px;
    }
    .sub-nav-item a {
        font-size: 14px;
    }
	.sub-nav-item a.active {
    color: white;
    background-color: #0530a9;
    border-radius: 0px;
    padding: 15px 25px;
    font-weight: bold;
}
.sub-nav-item a {
    color: #333;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    padding: 15px 25px;
    transition: color 0.3s ease;
}
}

.breadcrumb-title {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 18px;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
    z-index: 1;
}

.breadcrumb-title a {
    color: white;
    text-decoration: none;
}

@media (max-width: 768px) {
    .breadcrumb-title {
        font-size: 14px;
    }
}

.banner-img {
    width: 100%;
    height: 230px;
    object-fit: cover;
}

@media (max-width: 768px) {
    .banner-img {
        height: 100px;
    }
}