.case {
	padding-bottom: 0.7rem;
}
.case .items {
	margin: 0 -0.13rem;
	flex-wrap: wrap;
}
.case .items .item {
	flex: 0 0 33.33%;
	transition: var(--transition);
	padding: 0 0.13rem;
	margin-bottom: 0.25rem;
	max-width: 33.3%;
}
.case .item .info {
	padding: 0.1rem 0.2rem 0.15rem;
	position: relative;
}
.case .item .img_box {
	height: 2.4rem;
	
}
.case .item .info .title {
	font-size: 0.18rem;
	font-weight: bold;
	color: #010101;
	white-space: nowrap;
	overflow: hidden;
	text-overflow: ellipsis;
}
.case .item .info .des {
	font-size: 0.16rem;
	color: #666666;
	line-height: 0.28rem;
	margin-top: 0.1rem;
}
.case .item .info::after {
	content: '';
	height: 0.01rem;
	width: 0%;
	background-color: var(--main_color);
	transition: var(--transition);
	position: absolute;
	bottom: 0;
	left: 0;
}
.case .item .item_box {
	transition: var(--transition);
}
.case .item:hover .item_box {
	box-shadow: 0rem 0rem 0.11rem 0.01rem rgba(0,0,0,0.18);
}
.case .item:hover .info::after {
	width: 100%;
}







/* 详情 */
/* banner */
.banner .banner_img {
	position: relative;
	height: 5rem;
}
.banner .banner_img::after {
	content: '';
	width: 100%;
	height: 100%;
	background: linear-gradient(114deg, #030303 0%, rgba(128,128,128,0) 60%);
	position: absolute;
	top: 0;
	left: 0;
}
.banner .common_center {
	position: relative;
}
.banner .banner_info {
	position: absolute;
	left: 0.95rem;
	top: 50%;
	width: 100%;
	transform: translateY(-50%);
}
.banner .banner_info .title {
	font-size: 0.36rem;
	font-weight: bold;
	color: #FFFFFF;
	line-height: 0.52rem;
}
.banner .banner_info .des {
	font-size: 0.2rem;
	color: #FFFFFF;
	line-height: 0.26rem;
	margin-top: 0.3rem;
}


/* 案例背景 */
.case_bg {
	padding-top: 0.5rem;
}
.case_bg .detail_title_box {
	border-bottom-left-radius: 0.05rem;
	border-bottom: 0.01rem solid var(--main_color);
}
.case_bg .detail_title_box .title {
	background-color: var(--main_color);
	height: 0.5rem;
	width: 1.6rem;
	align-items: center;
	justify-content: center;
	border-radius: 0.05rem 0.05rem 0.05rem 0.05rem;
}
.case_bg .detail_title_box .title > img {
	width: 0.24rem;
	height: 0.31rem;
	margin-right: 0.16rem;
}
.case_bg .detail_title_box .title > p {
	font-size: 0.2rem;
	font-weight: bold;
	color: #FFFFFF;
}
.case_bg .des {
	font-size: 0.16rem;
	color: #010101;
	line-height: 0.3rem;
	margin-top: 0.22rem;
}


/* 主要挑战 */
.challenge {
	padding-top: 0.75rem;
}
.challenge .detail_title_box {
	border-bottom-left-radius: 0.05rem;
	border-bottom: 0.01rem solid var(--main_color);
}
.challenge .detail_title_box .title {
	background-color: var(--main_color);
	height: 0.5rem;
	width: 1.6rem;
	align-items: center;
	justify-content: center;
	border-radius: 0.05rem 0.05rem 0.05rem 0.05rem;
}
.challenge .detail_title_box .title > img {
	width: 0.25rem;
	height: 0.31rem;
	margin-right: 0.16rem;
}
.challenge .detail_title_box .title > p {
	font-size: 0.2rem;
	font-weight: bold;
	color: #FFFFFF;
}
.challenge .des {
	font-size: 0.16rem;
	color: #010101;
	line-height: 0.3rem;
	margin-top: 0.22rem;
}


/* 选材方案 */
.material {
	padding-top: 0.75rem;
	padding-bottom: 0.7rem;
}
.material .detail_title_box {
	border-bottom-left-radius: 0.05rem;
	border-bottom: 0.01rem solid var(--main_color);
}
.material .detail_title_box .title {
	background-color: var(--main_color);
	height: 0.5rem;
	width: 1.6rem;
	align-items: center;
	justify-content: center;
	border-radius: 0.05rem 0.05rem 0.05rem 0.05rem;
}
.material .detail_title_box .title > img {
	width: 0.3rem;
	height: 0.3rem;
	margin-right: 0.16rem;
}
.material .detail_title_box .title > p {
	font-size: 0.2rem;
	font-weight: bold;
	color: #FFFFFF;
}
.material .des {
	font-size: 0.16rem;
	color: #010101;
	line-height: 0.3rem;
	margin-top: 0.22rem;
}


/* 选材课堂详情 */
.main {
	padding-top: 0.3rem;
	padding-bottom: 1.28rem;
}
.main .inner_title {
	text-align: center;
}
.main hr {
	height: 0.01rem;
	width: 100%;
	background-color: #DCDCDC;
	border: none;
	margin-top: 0.3rem;
}
.main .info {
	margin-top: 0.5rem;
	text-align: center;
}
.main .info video {
    width: 12rem;
    height: 6.75rem;
}
.main .prev_next {
	margin-top: 0.7rem;
}
.main .prev_next .prev a,
.main .prev_next .next a {
	background-color: #F5F5F5;
	height: 0.98rem;
	line-height: 0.98rem;
	color: #666666;
	display: block;
	width: 100%;
	padding: 0 0.5rem;
	transition: var(--transition);
}
.main .prev_next .next a {
	text-align: right;
}
.main .prev_next .prev a::before {
	content: '<';
	margin-right: 0.3rem;
	padding-right: 0.16rem;
	border-right: 0.01rem solid #949494;
}
.main .prev_next .next a::after {
	content: '>';
	margin-left: 0.3rem;
	padding-left: 0.16rem;
	border-left: 0.01rem solid #949494;
}
.main .prev_next .prev a::before,
.main .prev_next .next a::after {
	font-size: 0.16rem;
	color: #949494;
	font-family: '宋体';
	font-weight: 700;
	transition: var(--transition);
}
.main .prev_next .prev,
.main .prev_next .next {
	flex: 0 0 50%;
	width: 50%;
}
.main .prev_next .prev a:hover,
.main .prev_next .next a:hover {
	background-color: #E1E1E1;
	color: var(--main_color);
}
.main .prev_next .prev a:hover::before,
.main .prev_next .next a:hover::after {
	color: var(--main_color);
}


@media only screen and (max-width: 1024px){
    .case_bg, 
    .challenge, 
    .material, 
    .main, 
    .case{
        padding:15px !important;
    }
    .case .items .item{
        flex:0 0 50%;
            max-width: 50%;
    }
    .challenge .detail_title_box .title > p, 
    .material .detail_title_box .title > p, 
    .material .detail_title_box .title > p, 
    .case_bg .detail_title_box .title > p, 
    .case .item .info .title{
        font-size: 14px;
    }
    .challenge .detail_title_box .title, 
    .case_bg .detail_title_box .title, 
    .material .detail_title_box .title{
        width: 100px;
        padding: 0 5px;
    }
    .challenge li, 
    .material p, 
    .case_bg p, 
     .challenge p span, 
      .material p span, 
    .case_bg p span, 
    .case .item .info .des{
        font-size: 12px !important;
    }
    .material p{
        margin:0 auto !important;
    }
    .case_bg p{
           margin: 0 !important;
    }
    .main .prev_next .prev a, .main .prev_next .next a{
        font-size: 12px !important;
        padding: 0 5px;
    }
    .main .info video{
        width: 100%;
    }
    .main .prev_next, 
    .main .info{
        margin-top: 15px;
    }
    .banner .banner_img{
        height:200px;
    }
    .case_bg{
        padding: 0;
    }
    
}