@import url('chemtuff-font/stylesheet.css');
:root {
    --c-font: 'YouSheBiaoTiHei';
}
.chemtuff-box .chemtuff-kv{
    position: relative;
    width: 100%;
}
.chemtuff-kv a{
    display: block;
    position: relative;
}
.chemtuff-kv a .pic{
    position: relative;
}
.chemtuff-kv a .pic img{
    position: relative;
    width: 100%;
    height: auto;
}
.chemtuff-kv a .text{
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    display: flex;  
    align-items: center;    
}
.chemtuff-kv a .text .text-inner{
    width: 100%;
}
.chemtuff-kv a .text .text-inner .h1{
    font-weight: 700;
    font-size: 4.166666vw;
    color: #FFFFFF;
    display: flex;
    align-items: center;
}
.chemtuff-kv a .text .text-inner .h1 img{
    margin-right:1.625vw;
    width: 3.645vw;
    height: auto;
}
.chemtuff-kv a .text .text-inner .h6{
    font-weight: 700;
    font-size: 3.125vw;
    color: #FFFFFF;
}
.chemtuff-kv a .text .text-inner .text-p{
    font-weight: 500;
    font-size: 1.875vw;
    color: #FFFFFF;
}
.intr-video{
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    padding:5.729vw 0;
}
.intr-video .iv-inner{
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
}
.intr-video .text{
    background: linear-gradient( 139deg, #3169CB 0%, #1A448C 100%);
    border-radius:12px;
    width:43.75%;
    box-sizing: border-box;
    padding: 2.6vw;
    transform: translateY(2.9vw);
}
.intr-video .text .t h2{
    font-weight: 700;
    font-size: 2.6vw;
    color: #00FF83;
}
.intr-video .text .t img{
    max-width:18.75vw;
    height: auto;
    transform: translateY(-10px);
}
.intr-video .text .d{
    font-weight: 400;
    font-size: 1.15625vw;
    color: #FFFFFF;
}
.intr-video .video-box{
    width: 50%;
    background: linear-gradient( 180deg, rgba(26,68,140,0) 0%, rgba(26,81,140,0.4863) 49%, #002E7C 100%);
    box-sizing: border-box;
    border-radius:30px;
    padding:8.5vw 2.6vw 3.125vw 2.6vw;
    position: relative;
}
.intr-video .video-box .video-play{
    position: relative;
    display:block;
}
.intr-video .video-box .video-play:after{
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    width: 100px;
    height: 100px;
    transform: translate(-50%, -50%);
    background: url(./c-pic-02.png) no-repeat center / cover;
}
.intr-video .video-box .video-play img{
    width: 100%;
    height: auto;
}
.intr-video .video-box img{
    width: 100%;
    height: auto;
    border-radius: 30px;
}
.modal{
    display: none; /* 隐藏弹窗 */
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.8); /* 背景 */
}
.modal-content{
    position: relative;
    margin: 15% auto;
    padding: 20px;
    width: 80%;
    max-width: 800px;
    background-color: #fff;
    border-radius: 8px;
}
.video-container{
    position: relative;
    padding-top: 56.25%; /* 16:9 */
}
.video-container video{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}
.close{
    position: absolute;
    top: 0;
    right: 10px;
    font-size: 30px;
    cursor: pointer;
    z-index: 100;
}
.why-should{
    background: linear-gradient( 180deg, #324172 0%, #152B60 100%);
    padding: 5.2vw 0 4.16666vw;
}
.why-should .ws-inner{
    max-width: 1460px;
    margin: 0 auto;
}
.why-should .ws-tit{
    text-align:center;
    max-width: 1200px;
    margin: 0 auto 5.2vw;
}
.why-should .ws-tit h2{
    font-weight: 700;
    font-size: 2.6vw;
    color: #FFFFFF;
    line-height: 1.2;
}
.why-should .ws-tit p{
    margin-top: 30px;
    font-weight: 400;
    font-size: 1.15625vw;
    color: #FFFFFF;
}
.why-should .ws-flex{
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}
.why-should .ws-flex .text-box{
    width:42%;
    padding-top:3%;
}
.why-should .ws-flex .text-box ul li{
    margin-top: 10%;
    position: relative;
    padding-left:70px;
    color: #FFFFFF;
    transition: all .6s;
    cursor: pointer;
}
.why-should .ws-flex .text-box ul li.active{
    color: #00FF83;
}
.why-should .ws-flex .text-box ul li .icon{
    position: absolute;
    left: 0;
    top:-3px;
    width: 50px;
}
.why-should .ws-flex .text-box ul li .icon img{
    width: 100%;
    height: auto;
    position:relative;
}
.why-should .ws-flex .text-box ul li .icon .h{
    position: absolute;
    left: 0;
    top: 0;
    opacity: 0;
    transition: all .6s;
}
.why-should .ws-flex .text-box ul li.active .icon .h{
    opacity: 1;
}
.why-should .ws-flex .text-box ul li:nth-child(1){
    margin-top: 0;
}
.why-should .ws-flex .text-box ul li h3{
    font-weight: 700;
    font-size: 1.875vw;
    line-height: 1.2;
}
.why-should .ws-flex .text-box ul li p{
    font-weight: 400;
    font-size: 1.0416vw;
    margin-top: 10px;
    display: none;
}
.why-should .ws-flex .text-box ul li.active p{
    display: block;
}
.why-should .ws-flex .photo{
    width:51.5%;
}
.why-should .ws-flex .photo img{
    width: 100%;
    height: auto;
}
.target-cus{
    background: linear-gradient( 180deg, #405993 0%, #0A1D2D 100%);
    padding: 5.2vw 0 6.25vw;
}
.target-cus .tc-tit{
    text-align:center;
    max-width: 1200px;
    margin: 0 auto 2.6vw;
}
.target-cus .tc-tit h2{
    font-weight: 700;
    font-size: 2.6vw;
    color: #FFFFFF;
}
.tc-swiper .swiper-button-next, 
.tc-swiper .swiper-button-prev{
    width: 60px;
    height: 120px;
    background-color: rgba(255,255,255,0.1);
    background-size:30px 30px;
    margin-top: -60px;
}
.tc-swiper .swiper-button-prev{
    background-image:url(./swiper-left.png);
    left:21.2vw;
}
.tc-swiper .swiper-button-next{
    background-image:url(./swiper-right.png);
    right:21.2vw;
}
.tc-swiper .swiper-slide{
    width:57.29vw;
}
.tc-swiper .swiper-slide a{
    display: block;
    position: relative;
    
}
.tc-swiper .swiper-slide a .pic img{
    width:100%;
    height:auto;
    border-radius: 20px;
}
.tc-swiper .swiper-slide a .text{
    position:absolute;
    left:0;
    top:0;
    width:100%;
    height:100%;
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    box-sizing: border-box;
    padding: 0 4.6875vw;
}
.tc-swiper .swiper-slide a .text .t{
    font-weight: 700;
    font-size:2vw;
    color: #FFFFFF;
    font-family:var(--c-font);
    text-transform: uppercase;
    max-width: 18.2vw;
    line-height: 1.2;
}
.tc-swiper .swiper-slide a .text .d{
    margin-top: 1.12vw;
    font-weight: 400;
    font-size: 1.145vw;
    color: #FFFFFF;
    max-width: 18.2vw;
}
.chemtuff-box .ind-chan{
    background: linear-gradient( 180deg, #0A1C2C 0%, #0D2033 23%, #405993 100%);
}
.ind-chan .ic-tit{
    text-align:center;
    margin: 0 auto 3.125vw;
}
.ind-chan .ic-tit h2{
    font-weight: 700;
    font-size: 2.6vw;
    color: #FFFFFF;
    line-height: 1.2;
}
.ind-chan .ic-tit p{
    margin-top: 30px;
    font-weight: 400;
    font-size: 1.15625vw;
    color: #FFFFFF;
}
.ind-chan .ic-list ul{
    display:flex;
    flex-wrap:wrap;
}
.ind-chan .ic-list ul li{
    width:25%;
}
.ind-chan .ic-list ul li .li-box{
    display: block;
    position: relative;
}
.ind-chan .ic-list ul li .li-box .pic{
    padding-bottom:83.33333%;
    position: relative;
    overflow: hidden;
}
.ind-chan .ic-list ul li .li-box .pic img{
    width: 100%;
    height: 100%;
    position: absolute;
    left: 0;
    top: 0;
    object-fit: cover;
    transition:all 0.6s;
    transform: scale(1);
}
.ind-chan .ic-list ul li:hover .li-box .pic img{
    transform: scale(1.1);
}
.ind-chan .ic-list ul li .li-box .text{
    font-weight: 700;
    font-size: 1.5625vw;
    color: #FFFFFF;
    text-align: center;
    position:absolute;
    left:0;
    top:0%;
    width: 100%;
    height: 100%;
    box-sizing: border-box;
    padding: 2.12vw;
    display: flex;
    justify-content: center;
    align-items: center;
}
@media screen and (max-width: 1600px){
    .why-should .ws-inner{
        max-width: 1466px;
    }
    .tc-swiper .swiper-button-next, 
    .tc-swiper .swiper-button-prev{
        width: 40px;
        height: 80px;
        margin-top: -40px;
    }
}
@media screen and (max-width: 1500px){
    .intr-video .video-box .video-play:after{
        width: 60px;
        height: 60px;
    }
}
@media screen and (max-width: 1467px) {
    .why-should .ws-inner{
        max-width: 1200px;
    }
}
@media screen and (max-width: 1400px) {
    .why-should .ws-inner{
        max-width: 1000px;
    }
}
@media screen and (max-width: 1023px) {
    .chemtuff-kv a .text .text-inner .h1{
        font-size:22px;
    }
    .chemtuff-kv a .text .text-inner .h1 img{
        width: 30px;
    }
    .chemtuff-kv a .text .text-inner .h6{
        font-size: 18px;
    }
    .chemtuff-kv a .text .text-inner .text-p{
        font-size: 14px;
    }
    .intr-video .iv-inner{
        display: block;
    }
    .intr-video .text{
        width: 100%;
        padding:20px;
        transform: translateY(0);
    }
    .intr-video .text .t h2{
        font-size:22px;
    }
    .intr-video .text .t img{
        max-width:50%;
        margin-top: 10px;
    }
    .intr-video .text .d{
        font-size: 14px;
    }
    .intr-video .video-box{
        width: 100%;
        padding: 20px;
        transform: translateY(0);
    }
    .intr-video .video-box img{
        border-radius: 20px;
    }
    .why-should .ws-tit h2{
        font-size: 22px;
    }
    .why-should .ws-tit p{
        font-size: 14px;
        margin-top: 10px;
    }
    .why-should .ws-flex{
        display: block;
        padding:0 20px;
    }
    .why-should .ws-flex .text-box{
        width:100%;
    }
    .why-should .ws-flex .text-box ul{
        display:flex;
        flex-wrap: wrap;
    }
    .why-should .ws-flex .text-box ul li{
        width: 25%;
        padding-left:0;
        margin-top:0;
        text-align:center;
    }
    .why-should .ws-flex .text-box ul li .icon{
        position:relative;
        top:0;
        margin:0 auto;
    }
    .why-should .ws-flex .text-box ul li .text{
        display:none;
    }
    .why-should .ws-flex .photo{
        width:100%;
        margin-top: 20px;
    }
    .target-cus .tc-tit h2{
        font-size:22px;
    }
    .tc-swiper .swiper-slide{
        width:90vw;
    }
    .tc-swiper .swiper-slide a .text .t{
        font-size:18px;
        max-width: 100%;
    }
    .tc-swiper .swiper-slide a .text .d{
        font-size:14px;
        max-width: 100%;
    }
    .tc-swiper .swiper-button-next, .tc-swiper .swiper-button-prev{
        width: 30px;
        height: 60px;
        margin-top: -30px;
        background-size: 15px 15px;
    }
    .tc-swiper .swiper-button-prev{
        left:20px;
    }
    .tc-swiper .swiper-button-next{
        right:20px;
    }
    .ind-chan .ic-tit h2{
        font-size:22px;
    }
    .ind-chan .ic-tit p{
        font-size:14px;
        margin-top:10px;
    }
    .ind-chan .ic-list ul li{
        width: 50%;
    }
    .ind-chan .ic-list ul li .li-box .text{
        font-size:18px;
    }
    .modal-content{
        margin-top:50%;
    }
}