body {
    font-family: Arial, Helvetica, sans-serif;
}

/* @media and (min-width:1200px) { //>=1200px的设备 }  
@media and (min-width: 960px) and (max-width:1199px) {//<=1199px and >=960px的设备:PC端;}
@media and (min-width: 768px) and (max-width:959px) {//<=959px and >=768px的设备：PC端;}
@media and (min-width: 640px) and (max-width:767px) {//<=767px and >=640px的设备：平板端或者手机横屏;}
@media and (min-width: 480px) and (max-width:639px) {//<=639px and >=480px的设备：手机横屏;}
@media and (min-width: 320px) and (max-width:479px) {//<=479px and >=320px的设备：手机竖屏;}
@media and (min-width: 240px) and (max-width:319px) {//<=479px and >=320px的设备：手机竖屏;}
@media and (max-width:239px){//<=239px的设备:手机竖屏} */

/********************导航的样式***********************/
.gz_header {
    /* padding: 0%; */
    float: left;
    background-color: white;
    /* background-color: aqua; */
    height: 100px;
    /*100px;*/
    width: 100%;
    align-items: center;
    padding-top: 35px;
    /* padding-left: 16.8%;
    padding-right: 16.8%; */
    margin: 0 auto;
    position: relative;
    z-index: 999;
}

.navbar-gz {
    /* background-color: aqua; */
    float: left;
    height: 56px;
    width: 1276px;
    padding-left: 0;
    padding-right: 0;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}


#gz_nav {
    float: right;
    gap: 2em;
}

.navbar-toggler {
    float: right;
}

#gz_header ul {
    gap: 2em;
}


@media screen and (max-width:1276px) {
    .navbar-gz {
        /* background-color: rgb(70, 75, 75); */
        float: right;
        width: 1276px;
        left: 0%;
        transform: translate(0%, -50%);
    }

    #gz_nav {
        float: left;
    }

    #gz_header ul {
        width: 100%;
        height: 40px;
        line-height: 40px;
    }



}

/* 手机导航 */
@media screen and (max-width:992px) {
    .navbar-gz {
        /* background-color: rgb(153, 155, 70); */
        width: 100%;
        height: auto;
    }

    .navbar-brand {
        padding-top: 0;
    }

    /* #gz_nav {
        gap: 0em;
    } */

    #gz_header ul {
        gap: 0em;
    }

    .line,
    .search {
        display: none;
    }

}




#gz_header nav {
    height: 56px;
    line-height: 56px;
    padding: 0%;
}

#gz_header div .container {
    height: 100%;
    width: 100%;
    padding: 0%;
}

#gz_nav .line {
    height: 30px;
    width: 1px;
    background-color: rgb(168, 168, 168);
}


#gz_nav a {
    font-size: 16px;
}

#droplist:hover div {
    display: block;
    transition-duration: 5s;
}

#gz_nav .search {
    height: 30px;
    width: 30px;
    line-height: 30px;
    color: rgb(34, 152, 255);
}

#gz_nav .dropdown-menu {
    top: 50px;
}

/********************头部的样式***********************/
#header {
    height: 100px;
}

.none_border {
    border: none !important;
}

#top {
    /* height: 600px; */
    width: 100%;
    aspect-ratio: 3/1+50px;
    background-color: rgb(50, 69, 154);
}

#top .top1 {
    /* height: 550px; */
    width: 100%;
    aspect-ratio: 3/1;
    background-size: 100% 100%;
}

#top .top2 {
    position: relative;
    height: 50px;
    /* width: 66.4%;
    margin-left: 16.8%;
    margin-right: 16.8%;
    padding-top: 15px; */
}
#top .top3 {
    width: 100%;
aspect-ratio: 8000/3754;
    background-size: 100% 100%;
}
.top2 ul {
    width: 1276px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

#top .top2 li {
    background-color: rgb(50, 69, 154);
    border: none;
    height: 20px;
    width: auto;
    display: flex;
    align-items: center;
    justify-content: left;
    border-right: 1px solid white;

    &:hover {
        &::after {
            width: 100%;
        }
    }

    &::after {
        content: '';
        transition: all 0.3s ease;
        position: absolute;
        height: 2px;
        bottom: -11px;
        width: 0px;
        left: 0px;
        background-color: rgb(86, 154, 98);
    }

}



#top .top2 .active {
    font-weight: bold;
    color: white;
}

#top .top2 a {
    text-align: center;
    color: rgb(208, 208, 208);
    width: 100%;
    text-decoration: none;
}

@media screen and (max-width:1276px) {
    #top {
        width: 1276px;
    }

    #top .top1 {
        width: 1276px;
    }

}

/********************尾部的样式***********************/
#gz_footer {
    height: 400px;
    width: 100%;
    background-color: rgb(72, 69, 69);
    position: relative;
}

@media screen and (max-width:1276px) {
    #gz_footer {
        width: 1276px;
    }
}

#gz_footer .content {
    width: 1276px;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

#f_info .col-3 {
    height: 150px;
    margin-bottom: 30px;
    margin-top: 30px;
    padding-left: 3%;
    border-right: 1px solid rgb(108, 108, 108);
}

#f_info .col-9 {
    height: 150px;
    margin-bottom: 25px;
    margin-top: 25px;
}

#f_info .col {
    height: 200px;
    border-top: 1px solid rgb(108, 108, 108);
    padding-left: 3%;
    padding-top: 30px;
}

#f_info .col p {
    position: absolute;
    width: 100%;
    text-align: center;
    bottom: 0px;
    color: white;
}

#footer1 .col {
    padding-top: 0%;
    padding-left: 0px;
    height: 200px;
    border: none;
}

#footer1 .col li {
    padding-left: 0px;
    background-color: rgb(72, 69, 69);
    height: 28px;
    border: none;
}

#footer1 .col a {
    color: white;
    font-size: 12px;
    position: absolute;
    bottom: 0px;
}

#footer1 .col img {
    height: 60px;
    width: 60px;
}

#footer1 .col img:hover {
    height: 80px;
    width: 80px;
}

/******************回到顶部的样式*****************/
#serviceBox .goTop {
    width: 70px;
    height: 70px;
    font-size: 40px;
    border-radius: 4px;
    background-color: #cccccc;
    text-align: center;
    align-items: center;
    line-height: 70px;
    position: fixed;
    bottom: 100px;
    right: 20px;
    color: white;
    /* display: none; */
}