.banner {
    width: 100%;
}

.banner_top {
    position: relative;
    height: calc(var(--design-height) * 420vh);
}

.banner_top img {
    width: 100%;
    height: 100%;
}

.banner_top h1 {
    position: absolute;
    left: calc(var(--design-width) * 72vw);
    top: calc(var(--design-height) * 200vh);
    font-weight: 400;
    color: #fff;
}

.banner_top span {
    position: absolute;
    left: 50%;
    bottom: -2px;
    width: calc(var(--design-width) * 1296vw);
    height: calc(var(--design-height) * 72vh);
    transform: translateX(-50%);
    background: #FFF;
}

.banner_bottom {
    text-align: center;
}

.tabs {
    display: flex;
    width: 100%;
    margin: 0 auto;
    padding: calc(var(--design-height) * 16vh) calc(var(--design-width) * 480vw) calc(var(--design-height) * 104vh);
    text-align: center;
}

.tabs .tabs_item {
    width: calc(var(--design-width) * 240vw);
    height: calc(var(--design-height) * 68vh);
    line-height: calc(var(--design-height) * 68vh);
    font-weight: 400;
    font-size: calc(var(--design-width) * 20vw);
    color: #666666;
    border: 1px solid #CCCCCC;
}

.tabs_item.current {
    font-weight: bold;
    font-size: calc(var(--design-width) * 20vw);
    color: #13599C;
    border: 1px solid #13599C;
}

.content.show {
    display: block;
}

.content {
    display: none;
    color: #333333;
}

.content p {
    font-weight: 400;
    font-size: calc(var(--design-width) * 24vw);
    color: #666666;
    padding: calc(var(--design-height) * 48vh) 0 calc(var(--design-height) * 120vh) 0;
}

.content>img {
    width: calc(var(--design-width) * 1132vw);
    height: calc(var(--design-height) * 561vh);
}

.tactics {
    width: 100vw;
    margin: 0 auto;
    padding: calc(var(--design-height) * 88vh) 0 calc(var(--design-height) * 120vh);
    line-height: 2;
    color: #333;
    text-align: center;
    background: #F9F9F9;
}

.tactics h1 {
    margin: 0 auto calc(var(--design-height) * 72vh);
    font-family: 'Source Han Sans CN, Source Han Sans CN';
    font-weight: 400;
    line-height: 2;
    text-align: center;
    color: #333;
}

.tactics img {
    width: calc(var(--design-width) * 1296vw);
    height: calc(var(--design-height) * 816vh);
}

.industrialBox {
    height: calc(var(--design-height) * 656vh);
    background: #F9F9F9;
    color: #333;
}

.industrial_top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: calc(var(--design-height) * 160vh);
    margin: 0 calc(var(--design-width) * 72vw);
    border-bottom: 1px solid #CCC;
}

.industrial_top img {
    width: calc(var(--design-width) * 32vw);
    height: calc(var(--design-width) * 32vw);

}

.industrial_top img:first-child {
    margin-right: calc(var(--design-width) * 16vw);
}

#marquee-1,
.upgrade {
    margin-top: calc(var(--design-height) * 40vh);
}

.marquee-1 .upgrade_item,
ul .upgrade_item {
    float: left;
    width: calc(var(--design-width) * 255vw);
    margin-right: calc(var(--design-width) * 8vw);
    background: #FFF;
    border-radius: 2px;
}

.marquee-1 .upgrade_item .num,
.upgrade_item .num {
    width: calc(var(--design-width) * 32vw);
    height: calc(var(--design-width) * 32vw);
    margin: calc(var(--design-height) * 20vh) calc(var(--design-width) * 20vw) calc(var(--design-height) * 10vh);
    text-align: center;
    font-weight: 400;
    line-height: calc(var(--design-width) * 28vw);
    font-size: calc(var(--design-width) * 24vw);
    color: #13599C;
    background: #FFFFFF;
    border-radius: calc(var(--design-width) * 32vw);
    border: 2px solid #13599C;
}

.marquee-1 .upgrade_item h5,
.upgrade_item h5 {
    padding: calc(var(--design-height) * 15vh) calc(var(--design-width) * 40vw) calc(var(--design-height) * 20vh);
    font-weight: bold;
    font-size: calc(var(--design-width) * 20vw);
    color: #333333;
    border-bottom: 1px solid #EEE;
}

.upgrade_item .upgrade_item_content p {
    height: calc(var(--design-height) * 136vh);
    padding: calc(var(--design-height) * 16vh) calc(var(--design-width) * 20vw) 0;
    font-weight: 400;
    text-align: left;
    font-size: calc(var(--design-width) * 14vw);
    color: #666666;
    line-height: 1.6;
}

.upgrade_item:hover .upgrade_item_content {
    background: #13599C;
    border-radius: 0px 0px 2px 2px;
    transition: 1.5s;
}

.upgrade_item:hover .upgrade_item_content h5 {
    color: #FFF;
    transition: 1.5s;
}

.upgrade_item:hover .upgrade_item_content p {
    color: #FFF;
    transition: 1.5s;
}

#marquee-box {
    overflow: hidden;
    margin-left: calc(var(--design-width) * 72vw);
}

#marquee-con {
    width: 500%;
    float: left;
}

.advantage {
    width: 100vw;
    padding: calc(var(--design-height) * 88vh) calc(var(--design-width) * 144vw);
    line-height: 2;
    color: #333;
    text-align: center;
    background: #F9F9F9;
}

.advantage h1 {
    margin: 0 auto calc(var(--design-height) * 64vh);
    font-family: 'Source Han Sans CN, Source Han Sans CN';
    text-align: center;
    color: #333;
}

.advantage ul {
    display: flex;
    justify-content: space-between;
}

.advantage>ul>li {
    position: relative;
    width: calc(var(--design-width) * 368vw);
    text-align: left;
    background: #FFFFFF;
    border-radius: calc(var(--design-width) * 2vw);
}

.advantage ul li img {
    width: calc(var(--design-width) * 80vw);
    height: calc(var(--design-width) * 72vw);
    margin: calc(var(--design-height) * 65vh) 0 calc(var(--design-height) * 116vh) calc(var(--design-width) * 48vw);
}

.advantage ul h3 {
    font-weight: bold;
    font-size: calc(var(--design-width) * 24vw);
    color: #333333;
    margin-left: calc(var(--design-width) * 48vw);
    /* margin-bottom: calc(var(--design-width) * 24vw); */
}

.advantage ul li div {
    width: calc(var(--design-width) * 368vw);
    height: calc(var(--design-width) * 144vw);
    padding: 0 calc(var(--design-width) * 48vw);
}



.advantage ul li p {
    margin: 0;
    padding: 0;
    font-weight: 400;
    font-size: calc(var(--design-width) * 16vw);
    color: #666666;
}

.advantage ul li:hover img {
    display: none;
}

.advantage ul li:hover h3 {
    font-weight: bold;
    font-size: calc(var(--design-width) * 32vw);
    color: #333333;
    margin: calc(var(--design-height) * 64vh) calc(var(--design-width) * 48vw) calc(var(--design-height) * 84vh);
}

.advantage ul li:hover div {
    width: calc(var(--design-width) * 368vw);
    height: calc(var(--design-width) * 240vw);
    padding-top: calc(var(--design-width) * 72vw);
    background: #13599C;
}

.advantage ul li:hover p {
    font-weight: 400;
    font-size: calc(var(--design-width) * 20vw);
    color: #FFFFFF;
    line-height: calc(var(--design-width) * 32vw);
}