.page-back{
    position: fixed;
    left: 0;
    top: 84px;
    width: 100%;
    height: calc(100% - 84px);
}

.page-back img,
.page-back picture{
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.site-footer{
    position: relative;
    z-index: 220;
}

.main img{
    max-width: 100%;
    height: auto;
    display: block;
}

section{
    overflow: hidden;
}

@media (max-width: 750px) {
    .page-back{
        top: 64px;
    }
}

.main{
    position: relative;
    z-index: 200;
    color: #000000;
}

.main .wrapper{
    width: calc(45.833vw + 460px);
    padding-left: 0;
    padding-right: 0;
}

section.banner{
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 28.125%;
}

section.banner .wrapper{
    position: absolute;
    height: 100%;
    left: 0;
    right: 0;
    margin: auto;
    padding-top: 32px;
    padding-bottom: 32px;
}

section.banner h1{
    font-weight: bold;
    font-size: calc(38vw / 19.2);
    color: #fff;
    position: relative;
    justify-self: flex-start;
    margin-top: 0;
    margin-bottom: 0;
}

section.banner h1::after{
    content: "";
    width: calc(10em / 38);
    height: calc(22em / 38);
    background: url("../images/support/call_center_2022/banner_arr_down.png") center/contain repeat-y;
    position: absolute;
    left: 0;
    bottom: calc(-22em / 38);
    animation: bannerArrDown 1.8s infinite linear;
}

@keyframes bannerArrDown {
    0%{
        background-position: 0 0;
    }
    100%{
        background-position: 0 22px;
    }
}


section.banner .wrapper{
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
}

section.banner .banner-text{
    display: block;
    width: calc(757vw / 19.2);
    height: auto;
    margin: auto 0 auto calc(-30vw / 19.2);
}

section.sec2,
section.sec3,
section.sec4,
section.sec5{
    background-color: rgba(255, 255, 255, .9);
}

.sec2{
    padding-top: calc(110vw / 19.2);
}

.sec2.mobile-only{
    display: none;
}

.sec2 .right img{
    position: relative;
    z-index: 235;
}

.split-ctn{
    display: flex;
    align-items: stretch;
}

.split-ctn .half{
    width: 50%;
    flex: 0 0 auto;

    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background-color: #f7f7f7;
    position: relative;
    padding: calc(50vw / 19.2);
}

.split-ctn .half+.half::after{
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 100px;
    pointer-events: none;
    background: linear-gradient(to right, rgba(239, 239, 239, 1), rgba(239, 239, 239, 0));
}

.sec2 .split-ctn{
    height: 380px;
    align-items: stretch;
}

.sec2 .half img{
    max-width: 100%;
    height: auto;
    display: block;
}

.sec2 .title-row{
    margin-bottom: 30px;
    overflow: hidden;
}

.sec2 .title-row .wrapper{
    display: flex;
    justify-content: space-between;
    font-size: 48px;
    font-weight: bold;
    position: relative;
    line-height: 48px;
}

.sec2 .title-row .wrapper::before,
.sec2 .title-row .wrapper::after{
    content: "";
    width:269px;
    height: 48px;
    position: absolute;
    top: 0;
    background: center/contain no-repeat;
}

.sec2 .title-row .wrapper::before{
    left: -290px;
    background-image: url("../images/support/call_center_2022/sec2_1_title.png");
}

.sec2 .title-row .wrapper::after{
    right: -290px;
    background-image: url("../images/support/call_center_2022/sec2_2_title.png");
}

.sec-title{
    font-weight: bold;
    font-size: 32px;
    padding-left: 40px;
    line-height: 60px;
    position: relative;
    margin-bottom: 45px;
}

.sec-title::before{
    content: "";
    left: -75px;
    position: absolute;
    top: 0;
    width: 106px;
    height: 60px;
    background: url("../images/support/call_center_2022/sec_title_back.png") center/contain no-repeat;
}

@supports (mix-blend-mode: multiply) {
    .sec-title{
        padding-left: 0;
    }

    .sec-title::before{
        mix-blend-mode: multiply;
    }
}

.sec3{
    padding-top: calc(110vw / 19.2);
}

.sec3 .sec-content img{
    display: block;
    width: 100%;
    height: auto;
}

.sec4{
    padding-top: calc(110vw / 19.2);
}

.sec4 .split-ctn img{
    display: block;
    width: 100%;
    height: auto;
}

.split-ctn .sec-sub-title{
    font-weight: bold;
    font-size: 24px;
    color: #4864a6;
    padding-right: 10px;
    padding-left: 10px;
    line-height: 23px;
    width: 100%;
    position: absolute;
    top: calc(50vw / 19.2);
    z-index: 260;
}

.split-ctn .left .sec-sub-title{
    text-align: right;
    border-right: 4px solid #4864a6;
    right: calc(50vw / 19.2);
}

.split-ctn .right .sec-sub-title{
    text-align: left;
    border-left: 4px solid #4864a6;
    left: calc(50vw / 19.2);
}

.sec4 .left img{
    margin-top: 80px;
    margin-bottom: 40px;
    cursor: pointer;
}

.sec4 .half, .sec5 .half{
    padding-top: 110px;
    padding-bottom: 50px;
}

.sec4 .half.left{
    padding: 0;
}

.sec4 .half{
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.sec4 .sec-content{
    width: 100%;
    position: relative;
    z-index: 235;
}

.sec4 .tab-header{
    width: 100%;
    display: flex;
    align-items: stretch;
}

.sec4 .tab{
    width: 50%;
    flex: 0 0 auto;
    line-height: 40px;
    text-align: center;
    background-color: #fff;
    cursor: pointer;
}

.sec4 .tab:hover{
    color: #e84542;
}

.sec4 .tab+.tab{
    border-left: 1px solid #eaeaea;
}

.sec4 .tab.active{
    color: #e84542;
    border-bottom: 2px solid #e84542;
    line-height: 38px;
}

.sec4 .tab-body{
    position: relative;
    width: 100%;
    min-height: calc(640vw / 19.2);
}

.tab-pane{
    display: none;
}

.tab-pane.active{
    display: flex;
}

.tab-body{
    margin-top: 30px;
}

.method-list.swiper-container{
    overflow: visible;
}

.method-list .method{
    width: 224px;

}

.method-list .method-img{
    background-color: #fff;
    border-radius: 10px;
    padding: 5px;
    box-shadow: 0 15px 30px 0 rgba(24, 27, 30, 0.1);
}

.method-list .method img{
    display: block;
    width: 100%;
    height: auto;
    border-radius: 10px;

}

.method-title{
    margin-top: 20px;
    margin-bottom: 12px;
    font-weight: bold;
    font-size: 14px;
}

.method-title i{
    display: inline-block;
    margin-left: 4px;
    font-size: 16px;
    color: #fff;
    width: 22px;
    height: 22px;
    line-height: 22px;
    font-weight: bold;
    text-align: center;
    vertical-align: middle;
    margin-top: -2px;
    background-color: #d61515;
    font-style: normal;
}

.method-body{
    font-weight: bold;
    font-size: 18px;
    line-height: calc(26em / 18);
    padding-right: 20px;
}

.sec5{
    padding-top: calc(110vw / 19.2);
    padding-bottom: calc(120vw / 19.2);
}

.sec5 .right img{
    margin-top: 50px;
}

@media (max-width: 1280px) {
    .sec2 .title-row .wrapper{
        font-size: 40px;
        line-height: 40px;
    }

    .sec2 .title-row .wrapper::before, .sec2 .title-row .wrapper::after{
        width: 240px;
        height: 40px;
    }

    .sec2 .split-ctn{
        height: auto;
    }

    .sec2 .split-ctn .half{
        padding-top: 40px;
        padding-bottom: 40px;
    }

    .sec2 .title-row .wrapper::before{
        left: -255px;
    }
    .sec2 .title-row .wrapper::after{
        right: -255px;
    }
}

@media (max-width: 960px) {
    .main .wrapper{
        width: calc(100% - 60px)
    }

    .sec2 .half img{
        max-width: 75%;
    }

    .sec2:not(.mobile-only) .right{
        display: none;
    }

    .sec2 .title-row .wrapper::before{
        display: none;
    }

    .sec2 .title-row .wrapper::after{
        right: 0;
    }

    .sec2.mobile-only{
        display: block;
    }

    .split-ctn{
        display: block;
    }

    .split-ctn .left .sec-sub-title{
        text-align: left;
        border-right: none;
        border-left: 4px solid #4864a6;

    }

    .split-ctn .half{
        width: 100%;
    }

    .split-ctn .half+.half::after{
        height: 100px;
        width: 100%;
        left: 0;
        top: 0;
        background: linear-gradient(to bottom, rgba(239, 239, 239, 1), rgba(239, 239, 239, 0));
    }
    .split-ctn .sec-sub-title{
        top: 0;
        left: 0;
        right: 0;
        position: relative;
        margin-bottom: 30px;
    }

    .sec4 .half, .sec5 .half{
        padding-top: 50px;
    }

    .sec5 .right img{
        margin-top: 0;
    }

    .sec-title{
        font-size: 28px;
        line-height: 48px;
        margin-bottom: 10px;
    }

    .sec-title::before{
        height: 48px;
        width: 81.5px;
        left: -60px;
    }

    .split-ctn .half{
        padding: 80px 20px 40px;
    }

    section.banner{
        padding-bottom: 120vw;
    }

    section.banner .banner-text{
        position: absolute;
        width: calc(697vw / 8.28);
        height: auto;
        top: calc(330vw / 8.28);
        left: calc(-20vw / 8.28);
    }

    section.banner h1{
        position: absolute;
        top: calc(24vw / 8.28);
        left: calc(36vw / 8.28);
        font-size: calc(72vw / 8.28);
    }

    .page-back{
        width: 100vw;
        height: calc(1792vw / 8.28);
        object-fit: cover;
    }

    section.banner .wrapper{
        width: 100%;
    }

    .sec4 .split-ctn .half.left{
        padding-top: 30px;
        padding-bottom: 15px;
    }

    .sec4 .split-ctn .half.left .sec-sub-title{
        margin-bottom: 0;
    }

    .sec4 .left img{
        margin-top: 40px;
    }

    .sec2{
        padding-top: calc(120vw / 9.6);
    }
}

@media (max-width: 750px) {
    .main .wrapper{
        width: calc(100% - 40px)
    }

    .sec2 .title-row .wrapper{
        font-size: 32px;
        line-height: 32px
    }

    .sec2 .title-row .wrapper::after{
        height: 32px;
    }

    .split-ctn .half{
        padding: 40px 20px 30px
    }

    .sec4 .tab{
        width: 100%;
        flex: 0 0 auto;
        line-height: 48px;
    }

    .sec4 .tab.active{
        order: -1;
        line-height: 46px;
    }

    .sec4 .tab-header{
        display: flex;
        flex-direction: column;
        height: 48px;
        overflow: hidden;
        transition: .3s;
    }

    .sec4 .tab-header.expanded{
        height: 96px;
    }

}

@media (max-width: 480px) {
    .sec2 .title-row .wrapper::after{
        position: relative;
        right: auto;
        margin-left: 20px;
    }

    .sec2 .title-row .left{
        flex: 0 0 auto;
        white-space: nowrap;
    }
    .sec4 .tab{
        font-size: 14px;
    }

    .sec2 .title-row{
        margin-bottom: 15px;
    }

    .sec2 .title-row .wrapper{
        font-size: 28px;
        line-height: 28px;
    }

    .method-list .method{
        width: 150px;
    }

}


@keyframes fadeInUp {
    0%{
        opacity: 0;
        transform: translateY(30px);
    }
    100%{
        opacity: 1;
    }
}
@keyframes fadeInLeftBig {
    0%{
        opacity: 0;
        transform: translateX(50%);
    }
    100%{
        opacity: 1;
    }
}
@keyframes fadeInRightBig {
    0%{
        opacity: 0;
        transform: translateX(-50%);
    }
    100%{
        opacity: 1;
    }
}

.banner h1{
    opacity: 0;
}
.banner.animated h1{
    animation: fadeInUp .8s .2s cubic-bezier(0, .5, .5, 1) forwards;
}
.banner .banner-text{
    opacity: 0;
}
.banner.animated .banner-text{
    animation: fadeInUp .8s .6s cubic-bezier(0, .5, .5, 1) forwards;
}

.sec2 .left,.sec2 .right,
.sec2 .title-row .wrapper::before,
.sec2 .title-row .wrapper::after,
.sec2 .split-ctn .left,
.sec2 .split-ctn .right{
    opacity: 0;
}

.sec2.animated .left{
    animation: fadeInRightBig 1.2s .2s cubic-bezier(0, .5, .5, 1) forwards;
}
.sec2.animated .right{
    animation: fadeInLeftBig 1.2s .2s cubic-bezier(0, .5, .5, 1) forwards;
}

.sec2.animated .title-row .wrapper::before{
    animation: fadeInRightBig 1.2s .4s cubic-bezier(0, .5, .5, 1) forwards;
}
.sec2.animated .title-row .wrapper::after{
    animation: fadeInLeftBig 1.2s .4s cubic-bezier(0, .5, .5, 1) forwards;
}

.sec2.animated .split-ctn .left,
.sec2.animated .split-ctn .right{
    animation-delay: .6s;
}

@media (max-width: 960px) {
    .sec2.animated .left,
    .sec2.animated .right,
    .sec2.animated .title-row .wrapper::before,
    .sec2.animated .title-row .wrapper::after,
    .sec2.animated .split-ctn .left,
    .sec2.animated .split-ctn .right{
        animation-name: fadeInUp;
    }
}

.sec3 .sec-title{
    opacity: 0;
}
.sec3 .sec-content{
    opacity: 0;
}

.sec3.animated .sec-title{
    animation: fadeInUp .8s .2s cubic-bezier(0, .5, .5, 1) forwards;
}
.sec3.animated .sec-content{
    animation: fadeInUp .8s .4s cubic-bezier(0, .5, .5, 1) forwards;
}

.sec4 .sec-title{
    opacity: 0;
}

.sec4.animated .sec-title{
    animation: fadeInUp .8s .2s cubic-bezier(0, .5, .5, 1) forwards;
}

.sec4 .left{
    opacity: 0;
}

.sec4 .right{
    opacity: 0;
    overflow: hidden;
    justify-content: flex-start;
}

.sec4.animated .left{
    animation: fadeInUp .8s .4s cubic-bezier(0, .5, .5, 1) forwards;
}

.sec4.animated .right{
    animation: fadeInUp .8s .6s cubic-bezier(0, .5, .5, 1) forwards;
}


.sec5 .sec-title{
    opacity: 0;
}

.sec5.animated .sec-title{
    animation: fadeInUp .8s .2s cubic-bezier(0, .5, .5, 1) forwards;
}

.sec5 .left{
    opacity: 0;
}

.sec5 .right{
    opacity: 0;
}

.sec5.animated .left{
    animation: fadeInUp .8s .4s cubic-bezier(0, .5, .5, 1) forwards;
}

.sec5.animated .right{
    animation: fadeInUp .8s .6s cubic-bezier(0, .5, .5, 1) forwards;
}