* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    
}
html {
    font-size: 18px;
    line-height: 1.8;
}

a {
    text-decoration: none;
}

.contain {
     max-width: 1600px;
    width: 100%; 
    margin: auto;
    padding: 0 20px; 
  
}

.logo-a{
    display: block;
    height: 82px;
}
.product-nav{
    display: none;
}
@media (max-width: 600px) {
    .contain {
         max-width: 1600px;
        width: 100%; 
        margin: auto;
        
    }
    .logo-a{
        display: block; 
        height: 100%;
    }
    .advertising .contain .group{
        display: none !important;
    }
    .product-nav{
        display: flex !important;
        justify-content: space-evenly;
        margin-top: 30px;
    }
    .product-nav .btn{
         padding: 12px 40px;
        background-color: #fff;
        color: #0050aa;
        border-radius: 20px;
        font-size: 12px;
        border: 1px solid #afafaf;
        cursor: pointer;
    }
    .product-nav .on{
         background-color: #2d337a;
        color: #fff;
        font-weight: bold;
    }
}

.main {
    width: 100%;
    min-width: 1600px;
    margin: auto;
}
@media (max-width: 600px) {
    .main {
        min-width: inherit;
    }
}
@media (min-width: 601px) and (max-width: 1200px) {
    .main {
        min-width: inherit;
    }
}

.back-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
    background-color: #0171ef;
    color: #fff;
    font-size: 12px;
    padding: 0 10px;
    line-height: 1.2;
    text-align: center;
    width: 50px;
    height: 50px;
    border-radius: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 8px 10px -5px #00000014, 0 16px 24px 2px #0000000a, 0 6px 30px 5px #0000000d;
}
.back-top .icon {
    display: block;
    
    width: 50px;
    height: 50px;
}
.menu-phone {
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.6);
    z-index: 10000;
    padding: 20px;
    display: none;
}
.menu-phone .item {
    display: block;
    line-height: 60px;
    color: #fff;
    padding: 0 20px;
    border-radius: 10px;
}
.menu-phone .item + .item {
    margin-top: 20px;
}
.menu-phone .item:hover,
.menu-phone .item.on {
    background-color: #0171ef;
}
.menu-phone .close {
    position: absolute;
    bottom: 20px;
    right: 20px;
    cursor: pointer;
}
header {
    position: sticky;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-image: linear-gradient(to bottom, #fff 117px, transparent);
    min-width: 1600px;
    width: 100%;
    margin-left: auto;
    margin-right: auto;
}
header .menu-tip {
    width: 0;
    height: 0;
    border-top: 20px solid transparent;
    border-bottom: 20px solid rgba(218, 220, 224, 0.6);
    border-left: 20px solid transparent;
    border-right: 20px solid transparent;
    position: absolute;
    left: 0;
    top: calc(117px - 65px);
    transition: all 300ms ease-in;
    display: none;
    margin-left: auto;
    margin-right: auto;

}
header .menu-child {
    position: absolute;
    top: 82px;
    background-color: rgba(218, 220, 224, 0.6);
    backdrop-filter: saturate(180%) blur(20px);
    margin-left: auto;
    margin-right: auto;
    width: 100%;

}
header .menu-child .menu-box {
    display: none;
    padding: 10px 0;
}
header .menu-child .ul {
    display: flex;
    /*width: 2000px;*/
    width: 1600px;
    margin: auto;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    gap: 30px;
    padding: 10px 0;
}
header .menu-child .ul .li {
    color: #7a7a7a;
}
header .menu-child .ul .li:hover {
    color: #0171ef;
}
header .contain {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 140px;
    height: auto;
}
header .contain .menu {
    flex: 1;
    display: flex;
    justify-content: space-between;
}
header .contain .phone {
    margin-left: -10px;
    display: none;
}
@media (max-width: 600px) {
    header {
        min-width: initial;
    }
      header .contain .menu {
          display: none;
      } 
      header .contain .phone {
          display: block;
          display: flex;
      }
}
@media (min-width: 601px) and (max-width: 1200px) {
    header {
        min-width: initial;
    }
      header .contain .menu {
          display: none;
      }  
      header .contain .phone {
          display: block;
      }
}
header .contain .menu .item {
    text-align: center;
    color: #7a7a7a;
    border-bottom: 3px solid transparent;
    font-size: 18px;
}
header .contain .menu .item.hover,
header .contain .menu .item.on {
    font-weight: bold;
    color: #000;
    border-color: #0171ef;
}
header .contain .tools {
    display: flex;
    gap: 20px;
}

@media (max-width: 600px) {
    header .contain{
        gap: 0 !important;
    }
    header .contain .tools {
        display: none;
    }
}
header .contain .tools .tel,
header .contain .tools .lang {
    display: flex;
    align-items: center;
}
header .contain .tools .tel {
    font-weight: bold;
    color: #2c3379;
    font-size: 21px;
}
header .contain .tools .tel .icon {
    width: 29px;
    height: 29px;
}
header .contain .tools .lang .item {
    padding: 3px 6px;
    border-radius: 6px;
    cursor: pointer;
}
header .contain .tools .lang .item.on {
    background-color: #2c3379;
    color: #fff;
}

footer {
    width: 100%;
    min-width: 1600px;
    background-color: #5a5957;
    padding: 50px 0 20px;
    color: #fff;
}
footer .content {
    display: flex;
    justify-content: space-between;
    gap: 100px;
}
footer .content .qrcode {
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: 12px;
}
footer .content .qrcode .pic {
    display: block;
    margin-bottom: 5px;
}
footer .content .imgs {
    display: flex;
    flex-direction: column;
    gap: 30px;
}
footer .content .imgs .pic {
    display: block;
    width: auto;
}
footer .content .imgs .company {
    font-size: 28px;
    text-align: center;
}
footer .content .imgs .company .text {
    font-size: 16px;
}
footer .content .menu {
    flex: 1;
    display: flex;
    justify-content: space-between;
    gap: 20px;
}
footer .content .menu .item .name::before {
    display: block;
    content: '';
    width: 20px;
    height: 1px;
    background-color: #fff;
    opacity: .5;
    position: absolute;
    left: 0%;
    bottom: 0;
    transform: translateX(-10%);
}
footer .content .menu .item .ul {
    margin-top: 20px;
}
footer .content .menu .item .ul .li {
    display: block;
    line-height: 1.8;
    font-size: 16px;
    color: #fff;
    opacity: .6;
}
footer .content .menu .item .ul .li:hover{
    opacity: .9;
}
footer .copyright {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 16px;
    margin-top: 30px;
    opacity: .6;
}
footer .content .menu .item .name {
    position: relative;
    padding-bottom: 6px;
}
@media (max-width: 600px) {
    footer {
        min-width: initial;
    }
    footer .content {
        flex-direction: column;
    }
    footer .content .menu {
        display: none;
    }
    footer .copyright {
        font-size: 12px;
    }
     footer .content .imgs .pic {
        display: block;
        width: auto;
    }
    
}
@media (min-width: 601px) and (max-width: 1200px) {
    footer {
        min-width: initial;
    }
    footer .content .menu {
        display: none;
    }
    
}


.advertising {
    width: 100%;
    
    min-width: 1600px;
    overflow: hidden;
    margin-right: auto;
    margin-left: auto;
    /*width: 1600px;*/
}
@media (max-width: 600px) {
    .advertising {
        min-width: auto;
    }
}
@media (min-width: 601px) and (max-width: 1200px) {
    .advertising {
        min-width: auto;
    }
}
.advertising .contain {
    position: relative;
}
.advertising .contain .group {
    position: absolute;
    bottom: 40px;
    left: 140px;
    z-index: 1;
    display: flex;
    align-items: center;
    gap: 20px;
}
.advertising .contain .group .btn {
    padding: 12px 40px;
    background-color: #fff;
    color: #0050aa;
    border-radius: 20px;
    font-size: 24px;
    border: 1px solid #afafaf;
    cursor: pointer;
}
.advertising .contain .group .btn.on,
.advertising .contain .group .btn:hover {
    background-color: #2d337a;
    color: #fff;
    font-weight: bold;
}

.advertising .pic {
    display: block;
    width: 100%;
    object-fit: cover;
}
.turn-blue{
    transition: color 0.3s ease; 
}
.turn-blue:hover{
    color: #0272f0 !important;
}
/*多语言*/
.translations{
    position: absolute;
    left:0;
    top: 100%;
    border:1px solid  #ccc; 
    border-radius: 5px;
    background: #fff;
    padding: 10px 15px ;
    width: 120px;
    display: none;
    z-index: 999;
}
.lang{
    position: relative;
    font-size: 14px;
    
}
.lang:hover {
    .translations{
        display: block;
    }
}

@media (max-width: 600px) {
    /*多语言*/
    .translations{
        position: absolute;
        left:0;
        top: 100%;
        border:1px solid  #ccc; 
        border-radius: 5px;
        background: #fff;
        padding: 10px 15px ;
        width: auto;
        display: none;
        z-index: 999;
    }
    .advertising .contain .group {
        bottom: 20px;
        left: 20px;
    }
    .advertising .contain .group .btn {
        font-size: 12px;
    }
    .lang{
        position: relative;
        font-size: 14px;
        margin-right: 20px;
    }
    .lang:hover {
        .translations{
            display: block;
            z-index: 999;
        }
    }
}
@media (min-width: 601px) and (max-width: 1200px) {
    
}