* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-size: 16px;
}

a {
    text-decoration: none;
}

li,
dl {
    list-style: none;
}

.w {
    width: 14rem;
    margin: 0 auto;
}

#ContentBody {
    padding-top: 1rem;
    width: 12rem;
    margin: 0 auto;
    padding-bottom: 1.5rem;
}

#ContentBody .news-title {
    color: rgba(76, 76, 76, 1);
    font-size: 0.4rem;
    text-align: center;
    margin-bottom: 0.2rem;
}

#ContentBody .news-sub-title {
    color: rgba(76, 76, 76, 1);
    text-align: center;
    font-size: 0.35rem;
    margin-bottom: 0.2rem;
}

#ContentBody .news-data {
    text-align: center;
    font-size: 0.16rem;
    color: rgba(153, 153, 153, 1);
    margin-bottom: 0.2rem;

}

#ContentBody .news-data span {
    color: rgba(153, 153, 153, 1);
    font-size: 0.16rem;
}

#ContentBody .line {
    height: 2px;
    width: 100%;
    background-color: rgb(242, 246, 251);
    margin-bottom: 0.6rem;
}

#ContentBody strong {
    font-size: 18px;
}

#ContentBody .article-conent p {
    font-size: 18px !important;
    color: rgba(76, 76, 76, 1);
    line-height: 34px;
    text-indent: 2em;
    font-family: "微软雅黑";
    margin-bottom: 10px;
    text-align: justify;
}

#ContentBody .article-conent p span {
    font-family: "微软雅黑" !important;
    color: rgba(76, 76, 76, 1) !important;

}

.white-bg {
    background-color: #fff;
}

.grey-bg {
    background-color: rgba(247, 247, 247, 1);
}

.border5 {
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 0.2rem;
    border: 5px solid rgba(237, 237, 237, 1);
    width: 6.4rem;
}



.product-float-nav {
    display: none;
    position: fixed;
    right: 0.2rem;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.95);
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
    padding: 0.1rem 0.16rem;
    z-index: 9999;
    max-width: 2.36rem;
}

.product-float-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.product-float-nav li {
    margin-bottom: 10px;
}

.product-float-nav li:last-child {
    margin-bottom: 0;
}

.product-float-nav a {
    text-decoration: none;
    color: #666;
    font-size: 0.15rem;
    display: block;
    padding: 0.1rem;
    border-radius: 4px;
    transition: all 0.3s ease;
    text-align: center;
}

.product-float-nav a:hover {
    background-color: #f5f5f5;
    color: #007bff;
}


.product-float-nav a.active {
    background-color: rgb(31, 78, 148);
    color: #fff;
}

.white,
.grey {
    scroll-margin-top: 0.9rem;
}


.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: #2878c2;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    z-index: 9999;
    box-shadow: 0 4px 12px rgb(0 16 31 / 40%);
}

.back-to-top:hover {
    background-color: #004F99;
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgb(1 36 69 / 50%);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top .arrow {
    width: 12px;
    height: 12px;
    border-left: 2px solid white;
    border-top: 2px solid white;
    transform: rotate(45deg);
    margin-top: 4px;
}

@media screen and (max-width: 1680px) {

    #ContentBody .news-data,
    #ContentBody .news-data span {
        font-size: 16px;
    }

}

@media screen and (max-width: 1550px) and (min-width: 1410px) {
    .zzjg .w {
        width: 80%;
    }

}

@media screen and (max-width: 1400px) {
    .w {
        width: 90%;
    }

    #ContentBody {
        width: 100%;
    }

    #ContentBody .news-title {
        font-size: 36px;
        margin-bottom: 16px;
    }

    #ContentBody .news-sub-title {
        font-size: 20px;
        margin-bottom: 16px;
    }

    #ContentBody .news-data {
        margin-bottom: 16px;
    }

    #ContentBody .line {
        margin-bottom: 40px;
    }
}

@media screen and (max-width: 768px) {
    .back-to-top {
        width: 44px;
        height: 44px;
        bottom: 20px;
        right: 20px;
    }

    .back-to-top .arrow {
        width: 10px;
        height: 10px;
    }
}

@media screen and (max-width: 750px) {
    .w {
        width: 100%;
        padding: 15px;
    }

    #ContentBody {
        padding-top: 40px;
        padding-bottom: 50px;
        padding-left: 5px;
        padding-right: 5px;
    }

    #ContentBody .news-title {
        font-size: 18px;
        margin-bottom: 12px;
    }

    #ContentBody .line {
        margin-bottom: 26px;
    }

    #ContentBody .img {
        display: block;
        margin: 0 auto;
        width: 100%;
        height: auto;
    }

    #ContentBody .setimg {
        flex-direction: column;
    }

    #ContentBody .setimg div {
        width: 100% !important;
    }

    .white,
    .grey {
        scroll-margin-top: 50px;
    }

    .product-float-nav {
        display: none !important;
    }

}


@media screen and (max-width: 480px) {
    .back-to-top {
        width: 40px;
        height: 40px;
        bottom: 15px;
        right: 15px;
    }

    .back-to-top .arrow {
        width: 9px;
        height: 9px;
    }
}