html{
    font-size: calc( 100vw / 1920 * 100);
}

.top_box {
    width: 100%;
    border-top: 1px solid #dedede;
    background-color: #fff;
    position: fixed;
    top: 84px;
    z-index: 100;
}
.top.main{
    padding-right: 0;
    padding-left: 0;
}
.main {
    width: 1200px;
    margin: 0 auto;
}

.tabs {
    width: 100%;
    display: flex;
}

.tabs .tab {
    width: calc(100% / 4);
    height: 60px;
    line-height: 60px;
    box-sizing: border-box;
    text-align: center;
    border-left: 1px solid #dedede;
    font-size: 16px;
    color: #333333;
    cursor: pointer;
}

.tabs .tab2 {
    background-color: #e60012;
}

.tabs .tab a {
    color: #333;
    display: block;
    width: 100%;
    height: 100%;
}

.tabs .tab2 a {
    color: #fff;
}

.tabs:last-child {
    border-right: 1px solid #dedede;
}

.box {
    width: 100%;
    margin-top: 60px;
}
.box:before{
    content: ' ';
    position: fixed;
    z-index: -1;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: url('../images/Laser_Processing_Machine/tu_1.jpg') no-repeat;
    background-size: cover;
}



.box .content .banner {
    height: 420px;
    position: relative;
    display: flex;
    justify-content: flex-start;
    align-items: center;
}

.box .content .banner .scroll {
    position: absolute;
    left: 50%;
    bottom: 50px;
    transition: all .3s;
    cursor: pointer;
    width: 49px;
    height: 41px;
    transform: translateX(-50%);
}

.box .content .banner .scroll:hover {
    padding-top: 10px;
}

.box .content .banner .scroll a {
    position: absolute;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.box .content .banner .scroll a img {
    width: 100%;
    height: 100%;
}

.box .content .banner .text .h1 {
    display: flex;
}

.box .content .banner .text .h1 div {
    color: #fff;
}

.box .content .banner .text .h1 div:nth-of-type(1) {
    font-size: 42px;
    font-weight: bold;
    padding-bottom: 35px;
    margin-right: 40px;
    line-height: initial;
}

.box .content .banner .text .h1 div:nth-of-type(2) {
    font-size: 20px;
    padding-top: 56px;
    font-style: oblique;
    position: relative;
}

.box .content .banner .text .h1 div:nth-of-type(2)::before {
    content: '';
    position: absolute;
    width: 1px;
    height: 150px;
    top: -40px;
    left: -15px;
    background-color: #fff;
    transform: rotate(25.41deg);
}

.box .content .banner .txt {
    color: #fff;
    margin-top: 75px;
    font-size: 24px;
    font-weight: bold;
}

.box .cont_box {
    width: 100%;
    background-color: rgba(255, 255, 255, .8);
}

.box .cont_box .cont {
    padding-top: 80px;
    position: relative;
    z-index: 1;
}

.box .cont_box .cont .title {
    font-size: 30px;
    font-weight: bold;
    color: #150f05;
}

.box .cont_box .cont .subtitle {
    font-size: 16px;
    color: #333;
    margin-top: 35px;
}

.box .cont_box .cont .advantage {
    margin-top: 25px;
}

.box .cont_box .cont .advantage li {
    font-size: 16px;
    color: #333;
    padding-left:1em;
    text-indent:-1.3em;
}

.box .cont_box .cont .exhibition{
    margin-top: 80px;
}


.cont_box {
    width: 100%;
    background-color: rgba(255, 255, 255, .9);
    position: relative;
}
.cont_box .bg {
    position: absolute;
    height: 7000px;
    width: 100vw;
    background-color: #f5f5f5;
    transform: skewX(347deg);
    right: -6.36rem;
    z-index: 0;
}


.tit{
    font-size: 24px;
    font-weight: bold;
    color: #150f05;
    padding-left: 25px;
    position: relative;
}

.tit::before{
    content: '';
    position: absolute;
    width: 15px;
    height: 6px;
    background: url('../images/consumables/rectangle.png') no-repeat;
    top: 50%;
    left: 1px;
    transform: translateY(-50%);
}

.bgc_color > div:nth-child(1){
    background-color: #ed594d;
}
.bgc_color > div:nth-child(2){
    background-color: #ec7161;
}
.bgc_color > div:nth-child(3){
    background-color: #f39684;
}
.bgc_color > div:nth-child(4){
    background-color: #f7bfb0;
}
.bgc_color > div:nth-child(5){
    background-color: #fae2d5;
}
.maintain_list{
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin-left: -20px;
    margin-right: -20px;
}
.maintain_list_item{
    margin-top: 41px;
    color: #fff;
    margin-right: 20px;
    margin-left: 20px;
    width: calc((100% - 80px) / 2);
    padding: 30px;
    padding-bottom: 65px;
}
.maintain_list_item h4{
    font-size: 20px;
}
.maintain_list_item > div{
    margin-top: 17px;
    font-size: 16px;
}
.maintain_list_item > div > p{
    line-height: 28px;
}

.tit_remake{
    text-align: right;
    font-size: 16px;
}
.recommend_wrapper{
    display: flex;
    justify-content: space-between;
}
.recommend_list{
    margin-top: 34px;

    flex: 1;
}
.recommend_list:nth-child(1){
    margin-right: 90px;
}
.recommend_wrapper h5{
    font-size: 18px;
}
.recommend_list p{
    margin-top: 24px;
}
.recommend_list_box{
    margin-top: 27px;
    display: flex;
    flex-wrap: wrap;
}
.recommend_list_box > div{
    height: 50px;
    display: flex;
    align-items: center;
    align-content: center;
    justify-content: center;
    flex:  0 0 105px;
    font-size: 16px;
    color: #fff;
}
.pc_img{
    text-align: center;
}

.pc_img img{
    width: 100%;
    object-fit: contain;
}
.mobile-img{
    position: relative;
    text-align: center;
    display: none;
}
.mobile-img img{
    width: 100%;
}
.mobile-img .dot{
    position: absolute;
    width: 10px;
    height: 10px;
    background: url('../images/maintain/m_img2.png') no-repeat;
    transform: translate(-50%, -50%);
}
.mobile-img .dot1{
    left: 25%;
    top: 41%;
}
.mobile-img .dot2{
    left: 85%;
    top: 40%;
}
.mobile-img .dot3{
    left: 10%;
    top: 66%;
}
.mobile-img .dot4{
    left: 89.5%;
    top: 55%;
}
.panel_wrapper{
    width: 80%;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}
.panel_wrapper > div{
    display: none;
}



@media (max-width:1366px){
    .mobile-img{
        display: none;
    }
}

@media (max-width:1366px){
    .main{
        width: 960px;
    }
}
@media (max-width:960px){
    .main{
        width: 750px;
    }
}
@media (max-width:750px){
    .mobile-img{
        display: block;
    }
    .pc_img{
        display: none;
    }










    .main {
        width: 640px;
        padding-left: 25px;
        padding-right: 25px;
    }
    .box .content .banner{
        justify-content: center;
    }
    .top_box{
        top: 64px;
    }
    .maintain_list{
        flex-direction: column;
        margin-right: 0;
        margin-left: 0;
    }
    .maintain_list_item{
        flex: 1;
        width: 100%;
        margin-right: 0;
        margin-left: 0;
    }
    .recommend_wrapper{
        flex-direction: column;
    }
    .tit_remake{
        text-align: left;
        margin-top: 5px;
    }
    .recommend_list:nth-child(1){
        margin-right: 0;
    }





}
@media (max-width:640px){
    .main{
        width: 375px;
    }
    .cont_box .bg{
        right: 26rem;
    }
}
@media (max-width:374px){
    .main{
        width: 100%;
    }
}