.section-box .section:nth-child(even) { background-color: #f6f8fb; }
.section-box .section:nth-child(odd) { background-color: #fff; }

.adv-img { width: 1200px; margin: 20px auto; }

.zlhk-box { padding: 30px 0 50px; }
.zlhk-box .item .item-wrap { background: #fff; padding: 30px; height: 100%; }
.zlhk-box .item .item-wrap .item-head { height: 82px; line-height: 82px; border-bottom: 1px dashed #e0e0e0; }
.zlhk-box .item .item-wrap .item-head .item-name { font-size: 26px; }
.zlhk-box .item .item-wrap .item-desc { padding-top: 25px; color: #666666; font-size: 16px; line-height: 36px; }
.zlhk-box .item:nth-child(1) .item-head { background: url("../Image/bdacg/icon-1.png") center right no-repeat; }
.zlhk-box .item:nth-child(2) .item-head { background: url("../Image/bdacg/icon-2.png") center right no-repeat; }
.zlhk-box .item:nth-child(3) .item-head { background: url("../Image/bdacg/icon-3.png") center right no-repeat; }
.zlhk-box .item:nth-child(4) .item-head { background: url("../Image/bdacg/icon-4.png") center right no-repeat; }

.tab-box { padding: 20px 120px; }
.tab-box .tab-head { width: 160px; float: left; border-left: 1px solid #e7e7e7; }
.tab-box .tab-head li { flex: 0 0 25%; max-height: 25%; padding-left: 25px; -webkit-box-sizing: border-box; -moz-box-sizing: border-box; box-sizing: border-box; position: relative; }
.tab-box .tab-head li::before { content: ''; width: 3px; height: 20px; background-color: #cdcdcd; display: block; position: absolute; left: -2px; -webkit-transition: all .3s; -moz-transition: all .3s; -ms-transition: all .3s; -o-transition: all .3s; transition: all .3s; }
.tab-box .tab-head li h3 { font-size: 20px; line-height: 1; margin-bottom: 12px; }
.tab-box .tab-head li p { font-size: 16px; color: #666666; line-height: 24px; }
.tab-box .tab-head li.active::before { background-color: #dd3833; height: 48px; }
.tab-box .tab-head li.active h3 { color: #dd3833; font-weight: bold; }
.tab-box .tab-con { min-height: 500px; width: 850px; float: right; }
.tab-box .tab-con .con { display: none; }
.tab-box .tab-con .con.active { display: block; }