.header-placeholder {
    display: block;
}

/* 案例 */
.cases-box {
    padding-top: .57rem;
    padding-bottom: 1.26rem;
    position: relative;
}

.cases-warp .cases-left {
    width: 3.33rem;
    background-color: #fff;
    border-top-left-radius: 12px;
    border-top-right-radius: 12px;
}

.cases-warp .cases-left .hot_list {
    position: -webkit-sticky;
    position: sticky;
    top: 1rem;
    right: 0;

}

.cases-warp .cases-left li {
    padding: .35rem 0 .34rem .4rem;
    border-bottom: 1px solid #F5F7FA;
}

.cases-warp .cases-left li:last-child {
    border-bottom: 0
}

.cases-warp .cases-left li a {
    color: #000;
    font-size: var(--fontsize4);
}

.cases-warp .cases-left li .right-title {
    margin-left: .2rem;
}

.cases-warp .cases-left li.active .right-title {
    color: var(--theme-color);
    font-weight: 500;
    font-size: var(--fontsize3);
}

.cases-warp .cases-left li a:hover {
    font-weight: 500;
    color: #254CB5;
}

.cases-warp .cases-right {
    margin-left: .32rem;
    background-color: #fff;
    border-radius: 12px;
}

.cases-warp .cases-right .li {
    padding: .62rem .4rem .32rem;
    border-bottom: 1px solid #F5F7FA;
}

.cases-warp .cases-right .li .left {
    width: 2.8rem;
    overflow: hidden;
}

.cases-warp .cases-right .li .left img {
    display: block;
    width: 100%;
}

.cases-warp .cases-right .li h4 {
    color: var(--color1);
    font-size: var(--fontsize4);
    margin-bottom: .3rem;
}

.cases-warp .cases-right .li .des {
    font-size: var(--fontsize5);
    color: var(--color3);
    margin-bottom: .3rem;
}

.cases-warp .cases-right .li .right-title {
    margin-left: .52rem;
}

.cases-warp .cases-right .li:hover h4,
.cases-warp .cases-right .li:hover .cases-more {
    color: var(--theme-color);
}

.cases-warp .cases-right .li .cases-more {
    font-size: var(--fontsize5);
    justify-content: right;
    color: var(--color1);
}

.cases-warp .cases-right .li .cases-more i {
    font-size: var(--fontsize7);
    margin-left: 0.1rem;
}

.cases-warp .cases-right .li:hover .cases-more {
    display: flex;
}



.cases-warp-detail{
    background-color: #fff;
}

/* 详情 */
.cases-detail .content-title {
    text-align: center;
    font-size: .44px;
    color: var(--color1);
    margin-bottom: .14rem;
    margin-top: .3rem;
}
.cases-detail .page1 {
    padding: .8rem 0;
}

.cases-detail .page1 .right{
    width: 6.26rem;
    overflow: hidden;
} 
.cases-detail .page1 .right img{
    display: block;
    max-width: 100%;
}

.cases-detail .left {
    margin-right: 1.64rem;
}

.cases-detail .left-title {
    font-size: var(--fontsize3);
    color: var(--theme-color);
    padding-left: .15rem;
    position: relative;
    font-weight: bold;
    margin-bottom: 0.17rem;
}

.cases-detail .left-title::after {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    height: 70%;
    width: 0.03rem;
    background-color: var(--theme-color);
}

.cases-detail .left-des {
    color: var(--color2);
    line-height: 30px;
}

.cases-detail .page2 {
    background-image: url(../image/cases-bg.png);
    background-position: center;
    background-repeat: no-repeat;
    background-size: 100% 100%;
    overflow: hidden;
    padding-top: 1.08rem;
    padding-bottom: 1.32rem;
}

.cases-detail .page2 .ul{
    flex-wrap: wrap;
    padding-left: .2rem;
}
.cases-detail .page2 .ul li {
    width: calc(100% / 5 );
    list-style-type: disc    ;
    color: var(--color2);
    margin-bottom: .2rem;
  
}


.cases-detail .page2 .right {
    width: 6.8rem;
    overflow: hidden;
}
.cases-detail .page2 .right img{
    display: block;
    max-width: 100%;
}

.cases-detail .page2 .left{
    margin-right: 0;
    margin-left: 1.2rem;
}
.cases-detail .page2 .left  .title1{
    margin-bottom: .81rem
}



@media screen and (max-width: 750px) {
    .cases-box {
        padding: 0 0 30px 0;
    }

    .cases-box .flex {
        display: block;
    }

    .cases-warp .cases-right {
        margin: 15px;
        padding-bottom: 20px
    }

    .cases-warp .cases-right .li {
        padding: 15px;
    }

    .cases-warp .cases-right .li .left {
        width: 100%;
    }

    .cases-warp .cases-right .li .right-title {
        padding: 15px;
        margin: 0;
    }

    .cases-warp .cases-right .li .more {
        padding: 15px;
    }

    .cases-warp .cases-left {
        width: auto;
        margin: 15px;
        box-sizing: content-box
    }

    .cases-warp .cases-left .hot_list ul {
        width: 100%;
    }

    .cases-warp .cases-left li {
        width: 100%;
        padding: 15px
    }

    .cases-warp .cases-left li a {
        display: flex;
    }

    .cases-detail .content .page1 {
        padding: 10px;
    }
    .cases-detail .content ul li{
        display: list-item;
    }
    .cases-detail .page1 .left{
        margin-right: 0;
    }
    .cases-detail .left-des{
        margin-bottom: 20px;
    }

    .cases-detail .content .page2{
        padding-left: 10px;
        padding-right: 10px;
    }
    .cases-detail .page2 .left{
        margin-left:  0;
        margin-top: 20px;
    }
}