/*about_1*/
.about1_1{
    height:600px;
    background-image:url(../../images/about/about1_1bg.png);
    background-repeat: no-repeat;
    background-position: right 140px;
    background-size:34%;
}
@media screen and (min-width:1081px) and (max-width:1350px){
    .about1_1{
        background-position: right 240px;
    }
}
@media screen and (max-width:1080px){
    .about1_1{
        background-position: right bottom
    }
}
.about1_1>section>div{
    width:70%;
}
.about1_1>section>div div{
    font-size:70px;
    color:#3da7cf;
}
.about1_1>section>div h1{
    font-weight:bold;
    color:#ddd;
}
.about1_1>section>div h3{
    font-weight:bold;
    line-height:60px;
}
.about1_1>section>div span{
    display:block;
    width:50%;
    font-size:16px;
    line-height:36px;
}
.about1_2{
    height:auto;
    min-height:900px;
    background-image:url(../../images/about/about1_2bg.jpg);
    background-repeat: no-repeat;
    background-position: center;
    background-size:cover;
    position:relative;
    padding:0;
}
.about1_2::before{
    content:"";
    position:absolute;
    inset:0;
    background:linear-gradient(180deg, rgba(10,18,26,0.45), rgba(10,18,26,0.8));
    z-index:0;
}
.about1_2.content_vertical>section{
    position:relative;
    top:0;
    transform:none;
    padding:120px 0 140px;
    z-index:1;
}
.about1_2>section>div{
    width:78%;
    position:relative;
}

.timeline_wrap{
    position:relative;
    --timeline-node: 140px;
    --timeline-dot: 16px;
    --timeline-gap: 36px;
    padding-left:0;
}
.timeline_line{
    position:absolute;
    left:calc(var(--timeline-node) - 1px);
    top:8px;
    bottom:8px;
    width:2px;
    background:linear-gradient(180deg, rgba(141,214,255,0.7), rgba(141,214,255,0.15));
}
.timeline_list{
    position:relative;
}
.timeline_item{
    display:flex;
    align-items:center;
    gap:var(--timeline-gap);
    position:relative;
}
.timeline_item + .timeline_item{
    margin-top:46px;
}
.timeline_node{
    width:var(--timeline-node);
    text-align:right;
    position:relative;
    z-index:2;
}
.timeline_time{
    display:block;
    font-size:28px;
    font-weight:bold;
    color:#8dd6ff;
    letter-spacing:0.5px;
    line-height:1.2;
    padding-right: 24px;
}
.timeline_dot{
    display:block;
    width:var(--timeline-dot);
    height:var(--timeline-dot);
    position:absolute;
    right:calc(var(--timeline-dot) / -2  );
    top:50%;
    transform:translateY(-50%);
    background:#3da7cf;
    border-radius:50%;
    box-shadow:0 0 0 6px rgba(61,167,207,0.25), 0 6px 16px rgba(0,0,0,0.35);
}
.timeline_card{
    flex:1;
    display:flex;
    gap:24px;
    padding:22px 24px;
    background:rgba(12,22,30,0.75);
    border:1px solid rgba(255,255,255,0.12);
    border-radius:16px;
    box-shadow:0 14px 30px rgba(0,0,0,0.35);
}
.timeline_img{
    width:220px;
    flex:0 0 220px;
    border-radius:12px;
    overflow:hidden;
    box-shadow:0 6px 16px rgba(0,0,0,0.35);
}
.timeline_img img{
    display:block;
    width:100%;
    height:100%;
    object-fit:cover;
}
.timeline_text h3{
    font-size:22px;
    font-weight:bold;
    color:#fff;
    margin:4px 0 10px;
}
.timeline_text p{
    font-size:14px;
    line-height:26px;
    color:rgba(255,255,255,0.85);
}

@media screen and (max-width:1080px){
    .about1_2>section>div{
        width:90%;
    }
    .timeline_wrap{
        --timeline-node: 90px;
        --timeline-dot: 14px;
        --timeline-gap: 20px;
    }
    .timeline_line{
        left:calc(var(--timeline-node) - 1px);
        top:6px;
        bottom:6px;
    }
    .timeline_node{
        width:var(--timeline-node);
        padding-right:16px;
    }
    .timeline_time{
        font-size:20px;
    }
    .timeline_card{
        flex-direction:column;
    }
    .timeline_img{
        width:100%;
        flex:1;
    }
}
.sub_bottom_nav{
    background-image:url(../../images/about/about1_3bg.jpg);
    background-repeat: no-repeat;
    background-position: center;
}

/*about_2*/
.about2_1{
    height:600px;
    background:url(../../images/about/about2_1bg.jpg) no-repeat left bottom;
    background-size: cover;
}
.about2_1 div{
    width:60%;
}
.about2_1 div div{
    font-size:60px;
    color:#3da7cf;
    font-weight:bold;
    margin-bottom:20px;
}
.about2_1 div span{
    font-size:16px;
    line-height:30px;
}
.about2_2{
    height:500px;
    background:url(../../images/about/about2_2bg.jpg) no-repeat center center;
    background-size: cover;
}
.about2_2>section>div{
    width:70%
}
.brand_content{
    text-align: center;
}
.brand_content li{
    display:inline-block;
    width:30%;
}
.brand_content li div{
    width:120px;
    height:120px;
    border-radius: 50%;
    -moz-border-radius: 50%;
    -webkit-border-radius: 50%;
    background: #fff;
    box-shadow: 0px 2px 6px #bed9e3;
    margin:0 auto;
    margin-bottom: 20px;
}
.brand_content li h4{
    font-size:22px;
    font-weight:bold;
    margin-bottom:10px;
}
.brand_content li span{
    display:block;
    font-size:16px;
    line-height:24px;
}
.brand_content li div i{
    display:block;
    width:120px;
    height:120px;
    background-repeat: no-repeat;
    background-position: center;
    background-size: 65%;
}
.brand_content li:nth-child(1) div i{
    background-image:url(../../images/about/icon1.png);
}
.brand_content li:nth-child(2) div i{
    background-image:url(../../images/about/icon2.png);
}
.brand_content li:nth-child(3) div i{
    background-image:url(../../images/about/icon3.png);
}

/*about_3*/

.tab_content{
    background:url(../../images/about/tab_content_bg.jpg) no-repeat center center;
    background-size: cover;
}

.tab_content>section>div h2{
    font-weight:bold;
    margin-bottom:20px;
}
.tab_content>section>div h4 span{
    display:inline-block;
    padding:5px 20px;
    background:#3da7cf;
    color:#fff;
    border-radius:25px;
    font-weight:bold;
    margin-bottom:20px;
}
.tab_content>section>div ul li{
    width:100%;
    font-size:16px;
    line-height:30px;
    margin-bottom:10px;
}
.tab_content>section>div ul li i{
    font-size:8px;
    vertical-align: top;
    margin-top:10px;
    margin-right:5px;
    color:#3da7cf;
}
.tab_content>section>div ul li span{
    display:inline-block;
    width:96%;
}

/*about5*/
.member_img{
    width:14%;
    margin-right:20px;
}
.member_img img{
    display:block;
    width:100%;
}
.member_title{
    margin-top:50px;
}
.member_title h2{
    font-weight:bold;
    font-size:24px;
}
.member_title h2 span{
    display:inline-block;
    color:#3da7cf;
    font-size:32px;
    margin-right:20px;
}
.member_title h4{
    font-weight:bold;
}
.member_content{
    margin-top:50px;
}
.member_content span{
    display:inline-block;
    width:48%;
    font-size:16px;
    line-height:36px;
}
.tech2 ul{
    width:100%;
}
.tech2 ul li{
    display:block;
    width:100%;
}
.tech2 ul li>div{
    height:600px;
    width:50%;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
}
.tech2 ul li:nth-child(2n+1)>div{
    float:left;
}
.tech2 ul li:nth-child(2n)>div{
    float:right;
}
.tech2 ul li>div div{
    width:70%;
}
.tech2 ul li>div div h2{
    font-weight:bold;
    margin-bottom:10px;
}
.tech2 ul li>div div h2 b{
    font-size:54px;
    font-weight:bold;
    color:#3da7cf;
    margin-right:5px;
}
.tech2 ul li>div div h2 i{
    font-style:normal;
    font-size:24px;
    margin-left:5px;
}
.tech2 ul li>div div h4{
    display:inline-block;
    background:#3da7cf;
    color:#fff;
    padding:5px 10px;
    border-radius:20px;
    -moz-border-radius:20px;
    -webkit-border-radius:20px;
    margin-bottom:10px;
    font-weight:bold;
}
.tech2 ul li>div div span{
    display:block;
    font-size:16px;
    line-height:36px;
}
.tech2 img{
    display:block;
    width:100%;
}