body {
    background-color: #EEEFF1;
    font-family: Alibaba PuHuiTi 2.0, Alibaba PuHuiTi 20;
}
.background {
    width: 100%; /* 改为响应式宽度 */
    max-width: 1920px; /* 最大宽度限制 */
    height: 529px; /* 高度自适应 */
    margin: 0 auto;
    position: relative;
}

.background img {
    width: 100%;
    height: auto;
    display: block;
}

.background h1 {
    position: absolute;
    font-weight: bold;
    font-size: 46px;
    color: #FFFFFF;
    z-index: 2;
    top: 60px;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    text-align: center;
}

.container {
    position: absolute;
    top: 156px;
    left: 50%;
    transform: translateX(-50%);
}


.container img {
    display: none;
    max-width: 100%;
    height: auto;
    margin: 0 auto;
}

.container img.active {
    display: block;
}







.bottom {
    display: flex;
    justify-content: space-between;
    width: 1310px;
    position: absolute;
    top: 361px;
    left: 50%;
    transform: translateX(-50%);
}

.left-btn, .right-btn {
    position: relative;
    width: auto; /* 根据图片宽度自适应 */
}

/* 默认显示-be图片，隐藏-af图片 */
.left-af, .right-af {
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0;
    transition: opacity 0.3s ease;
}

/* 鼠标悬停在左按钮时的效果 */
.left-btn:hover .left-be {
    opacity: 0;
}
.left-btn:hover .left-af {
    opacity: 1;
}

/* 鼠标悬停在右按钮时的效果 */
.right-btn:hover .right-be {
    opacity: 0;
}
.right-btn:hover .right-af {
    opacity: 1;
}



.line{
    margin:0 auto;
    margin-top:186px;
    width: 1920px;
    height: auto;

}
.line-top {
    position: relative;
    width: fit-content;
    margin: 0 auto;
}

.line-img {
    display: block;
    margin: 0 auto;
}

.dot {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 30px;
    height: 30px;
}

.text {
    position: relative;
    width: 1440px;
    margin: 16px auto;
    overflow: hidden; /* 超出部分隐藏 */
    white-space: nowrap; /* 防止换行 */
    
}

.text-inner {
    display: inline-block;
    position: relative;
    left: 50%;
    transform: translateX(-50%);
    
}

.text span {
    display: inline-block;
    font-weight: bold;
    font-size: 32px;
    line-height: 38px;
    color: #C1C9DD;
    margin: 0 76px;
    position: relative;
    transition: all 0.3s ease;
}

.text span.active {
    color: #2C4684;
}