.con {
    padding-top: 70px;
    padding-bottom: 40px;
    border-top: 1px solid #e5e5e5;

}

.con .tab{
    display: flex;
    justify-content: center;

}
.con .tab a{
    margin-right: 120px;
    transition: all 0.2s linear;
    position: relative;
      padding-bottom: 14px;
}

.con .tab a:after{
    content: "";
    position: absolute;
    bottom: 0;
    width: 0;
    left: 50%;
    transform: translateX(-50%);
    height: 2px;
    background: #e1252e;
    transition: all 0.2s linear ;
}
.con .tab a.on{
    font-weight: 600;
}
.con .tab a:hover:after,
.con .tab a.on:after{
    width: 30px;
}
.con .tab a:last-child{
    margin-right: 0;
}
.sec1 {
    padding-top:  40px;
}

.sec1-des {
    width: 62%;
    color: #7b7b7b;
    line-height: 2.25;
    text-align: center;
    margin: 40px auto 0;
}

.sec1-box {
    display: flex;
    margin-top: 40px;
    justify-content: space-between;
}

.sec1-box .sec1-lf {
    flex: 0 0 60.9%;
}

.sec1-box .sec1-lf img {
    width: 100%;
    object-fit: contain;
}

.sec1-box .sec1-rg {
    flex: 0 0 calc(100% / 3);
    margin-right: 1.74%;
    margin-top: 40px;
}

.sec1-box .sec1-item {
    background-color: #fceef1;
    border: 1px dashed #d90c36;
    border-radius: 8px;
    height: 120px;
    padding: 0 8.1%;
    display: flex;
    align-items: center;
    color: #dd244a;
    line-height: 1.8;
    margin-bottom: 20px;
    overflow: hidden;
}

.sec2 {
    margin-top: 40px;
    padding-bottom: 40px;
}

.sec2 .sec2-change {
    display: flex;
    justify-content: center;
    margin-bottom: 40px;
}

.sec2 .sec2c-item {
    position: relative;
    line-height: 48px;
    width: 220px;
    background-color: #fff;
    text-align: center;
    border-radius: 24px;
    color: #2b2b2b;
    margin: 0 21px;
    cursor: pointer;
    box-shadow: rgba(100, 100, 111, 0.2) 0px 7px 20px 0px;
    transition: all .3s;
    overflow: hidden;
}

.sec2 .sec2c-item:before {
    content: '';
    position: absolute;
    left: 0;
    background-image: linear-gradient(45deg, #dc2029, #fe3e47);
    width: 100%;
    height: 100%;
    top: 0;
    opacity: 1;
    transition: all .5s;
    opacity: 0;
}

.sec2 .sec2c-item span {
    position: relative;
    z-index: 2;
}

.sec2 .sec2c-item.active:before {
    opacity: 1;
}

.sec2 .sec2c-item.active {
    color: #fff;
    box-shadow: rgba(100, 100, 111, 0.2) 0px 0px 0px 0px;
}

.sec2 .swpbox {
    position: relative;
}

.sec2 .swiper-slide>img {
    width: 100%;
    height: 100%;
    object-fit: contain;

}

.sec2 .swiper-slide .cpimg img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    opacity: 0;
    transition: all .5s;
}

.sec2 .swiper-slide .cpimg img.active {
    opacity: .5;
}

.sec2 .dian {
    position: absolute;
    transform: translate(-50%, -50%);
}

.sec2 .dian-tit {
    position: absolute;
    height: 50px;
    display: none;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-radius: 25px;
    padding: 0 28px;
    align-items: center;
    color: #fff;
    white-space: nowrap;
    cursor: pointer;
    background-image: linear-gradient(45deg, #dc2029, #fe3e47);
    opacity: 0;

    transition: opacity .5s;
}

.sec2 .dian.active {
    z-index: 1;
}

.sec2 .active .dian-tit {
    display: flex;
    opacity: 1;

}

.sec2 .dian>img {
    transition: all .5s;
}

.sec2 .active>img {
    opacity: 0;
}

.sec2 .dian-tit img {
    margin-right: 22px;
}

.sec2 .sec2-btm {
    display: flex;
    align-items: center;
    margin-top: 20px;
    justify-content: space-between;
}

.sec2 .sec2-btm .sec2-lf {
    color: #000;
}

.sec2 .sec2-btm .sec2-des {
    flex: 0 0 calc(200% / 3);
    padding-left: 8.05%;
    border-left: 1px solid #d2d2d2;
    color: #7d7d7d;
    line-height: 2.25;
}

.sec3-box {
    display: flex;
    justify-content: space-between;
    margin-top:40px;
}

.sec3 .sec3-item:nth-child(1) {
    flex: 0 0 34.86%;
    margin-left: 1.32%;
}

.sec3 .sec3-item:nth-child(2) {
    flex: 0 0 52.775%;
}

.sec3-tit {
    line-height: 1.5;
    color: #000;
    text-align: center;
    margin-bottom: 20px;
}

.sec3-img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.sec3-des {
    margin-top:40px;
    line-height: 1.8;
    color: #000;
}

@media screen and (max-width:1600px) {}

@media screen and (max-width:1200px) {
    .sec2 .dian>img {
        width: 42px;
    }

    .sec2 .dian-tit {
        height: 42px;
        border-radius: 21px;
        padding: 0 20px;
    }

    .sec2 .dian-tit img {
        margin-right: 16px;
    }

    .sec2 .sec2c-item {
        width: 200px;
        margin: 0 16px;
    }

    .sec1-des {
        width: 80%;
    }
}

@media screen and (max-width:768px) {
   .con .tab a{margin-right:auto}
   
.con{
    padding-top: 40px;
}
.sec1-des{
    margin-top: 20px;
}
    .sec2 .sec2c-item {
        width: 30%;
        margin: 0;
        line-height: 36px;
    }
  
    .sec2 .sec2-change {
        margin-bottom: 20px;
        justify-content: space-between;
    }

    .sec1-des {
        width: 100%;
    }

    .sec1-box {
        flex-wrap: wrap;
    }

    .sec1-box .sec1-lf {
        flex: 0 0 100%;
    }

    .sec1-box .sec1-rg {
        flex: 0 0 100%;
        margin-top: 20px;
        margin-right: 0;
    }

    .sec1-box .sec1-item {
        padding: 0 5%;
        height: 100px;
        margin-bottom:20px;
    }

    .sec1 {
        padding-top: 30px;
    }

    .sec2 .dian>img {
        width: 24px;
    }

    .sec2 {
        margin-top: 20px;
        padding-bottom:40px;
    }

    .sec2 .sec2-btm {
        flex-wrap: wrap;
        margin-top: 15px;
    }

    .sec2 .sec2-btm .sec2-des {
        flex: 0 0 100%;
        padding-left: 0;
        border-left: 0;
        margin-top: 5px;
    }

    .sec3-box {
        flex-wrap: wrap;
        margin-top: 20px;
    }
.con{
    padding-bottom: 40px;
}
    .sec3 .sec3-item:nth-child(n) {
        flex: 0 0 100%;
        margin-left: 0;
        margin-bottom: 20px;
    }

    .sec3-des {
        margin-top: 12px;
    }
      .sec1-box .sec1-rg,
.sec1-box{
    margin-top: 20px;
}
}