.main {width: 1280px;height: auto;overflow: hidden;margin: 0 auto;}
.col {width: 100%;overflow: hidden;}
.jsx {margin: 20px auto;}
.col7 {width: 58.33333333%;float: left;}
.col5 {width: 41.66666667%;float: left;}
.box1 {width: 100%;display: grid;grid-template-columns: 100%;}
.box3 {width: 100%;display: grid;grid-template-columns: 33.33% 33.33% 33.33%;}
.box4 {width: 100%;display: grid;grid-template-columns: 25% 25% 25% 25%;}
.item {overflow: hidden;padding: 5px;}
.zx5 {overflow: hidden;background: url("../images/zx5.jpg") no-repeat;background-size: auto;background-size: 100% 100%;width: 422px;height: 47px;margin: 0 auto;}
.zx5 a {font-size: 20px;line-height: 45px;color: #fff;padding-left: 120px;}
.tp1 {overflow: hidden;text-align: center;}
.tp1 a {overflow: hidden;display: block;}
.bt1 {overflow: hidden;text-align: center;margin: 40px 0 30px 0;}
.bt1 h2 {font-size: 30px;}
.course-list {display: flex;flex-wrap: wrap;justify-content: space-between;}
.width-100 {width: 100%;}
.text-c {text-align: center;}
.f-24 {font-size: 1.2rem !important;}
.f-22 {padding: .2rem;text-align: center;}
.course-list .item {width: 48%;border: #eeeeee solid 1px; color: black;text-decoration: none;}