li{
    list-style: none;
}
ul,p,h1,h2,h3,h4,ol{
    margin: 0;
    padding: 0;
}
html,a{
    color: #333;
}
a:hover{
    color: #333;
    text-decoration: underline;
}
.hr{
    height: 1px;
    background-image: linear-gradient(to right,red,rgb(0, 247, 255),blue,red,rgb(0, 247, 255),blue);

}

.title{
    /* line-height: 50px; */
    border-bottom: 1px solid #ccc;
}
.title a{
    display: inline-block;
    line-height: 50px;
    font-size: 20px;
    font-weight: 700;
    border-bottom: 2px solid #4e6ef2;
    padding: 5px 10px;
    color: #4e6ef2;
}
.title a:hover{
    text-decoration: none;
}

nav > div{
    width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    height: 80px;
    align-items: center;
}
nav > div > a{
    display: block;
    font-size: 40px;
    color: #4e6ef2;
    width:200px;
}
nav > div > a:hover{
    /* color: #fff; */
    text-decoration: none;
}
nav ul{
    display: flex;
    justify-content: space-between;
    margin: 0 20px;
    flex-grow: 1;
    padding: 0;
}
nav input{
    outline: none;
    border: 1px solid #ccc;
    border-radius: 4px;
    padding: 5px 10px;
    font-size: 12px;
}

/* *************** */
main{
    width: 1200px;
    margin: 0 auto;
}
.head{
    display: flex;
    justify-content: space-between;
}
.he_le{
    width: 38%;
}
.he_ri{
    width: 60%;
}
.he_ri a:hover{
    text-decoration: none;
}
.he_le ul li{
    line-height: 38px;
    position: relative;
    padding-left: 15px;
}
.he_le ul li::before{
    content: "";
    width: 6px;
    height: 6px;
    background-color: #bbb;
    position: absolute;
    top: 17px;
    left: 0;
    transform: rotate(45deg);
}
.he_le ul li:nth-child(6n + 1){
    font-weight: 700;
}
.he_le ul li:nth-child(6n + 1)::before{
    background-color: red;
}
.he_le ul li a{
    display: block;
    white-space:nowrap;
    overflow:hidden;
    text-overflow:ellipsis;
}
#demo{
    margin-top: 18px;
    height: 400px;
    overflow: hidden;
}
#demo img{
    width: 100%;
    height: 400px;
}
#demo .carousel-item > div{
    position: relative;
}
#demo .carousel-item h2{
    background-image: linear-gradient(rgba(0, 0, 0, 0),rgba(0, 0, 0, 0.884));
    height: 60px;
    position: absolute;
    right: 0;
    bottom: 0;
    left: 0;
    margin: 0;
    line-height: 60px;
    font-size: 20px;
    color: #fff;
    padding-left: 20px;
}
#demo .carousel-item h2 a{
    color: #fff;}
.d_next{
    display: flex;
    justify-content: space-between;
}
.d_next li{
    width: 30%;
    margin-top: 25px;
    border-bottom: 1px solid red;
    position: relative;
}
.d_next li:nth-child(2){
    border-bottom: 1px solid orangered;
}
.d_next li:nth-child(3){
    border-bottom: 1px solid blue;
}
.d_next li > a{
    
    display: block;
    height: 140px;
}
.d_next li h4{
    position: absolute;
    height: 30px;
    top: 110px;
    background-color:rgba(0, 0, 0, 0.5);
    width: 100%;
    margin: 0;
    overflow: hidden;
}
.d_next li h4 a{
    display: block;
    font-size: 14px;
    padding-left: 10px;
    color: #fff;
    line-height: 30px;
}
.d_next li p{
    font-size: 14px;
    padding:10px 5px;
    height: 83px;
    overflow: hidden;
}
/* ***** */
.hot_se,.hot_se1{
    display: flex;
}
.hot_se li:nth-child(1),.hot_se li:nth-child(2){
    flex-shrink: 1;
    font-size: 14px;
}
.hot_se1 li:nth-child(6),.hot_se1 li:nth-child(5){
    flex-shrink: 1;
    font-size: 14px;
}
.hot_se li,.hot_se1 li{
    flex-shrink: 1.5;
    font-size: 12px;
    margin-left: 2px;
    width: 300px;
    position: relative;
    overflow: hidden;
}
.hot_se li:first-child,.hot_se1 li:first-child{
    margin: 0;
}
.hot_se li > a,.hot_se1 li > a{
    display: block;
    height: 100px;
    padding: 0 10px;
    background-color: #4e6ef2;
    color: #fff;
    text-align: center;
    display: table-cell;
    vertical-align:middle;
}
.hot_se{
    margin-top: 15px;
}
.hot_se1{
    margin-top: 2px;
}
.hot_se1 section,.hot_se section{
    position: absolute;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.3);
    top: -100px;
    left: 0;
    transition: all .2s linear;
}
.hot_se li:hover section,.hot_se1 li:hover section{
    top: 100px;
}

/* *********************** */
.cgo{
    display: flex;
    justify-content: space-between;
    padding-bottom: 15px;
}
.cgo > div{
    width: 32%;
}
.cgo > section{
    width: 66%;
}
.cgo_l > div{
    display: flex;
    justify-content: space-between;
    padding-top: 15px;
}
.cgo_l > div section{
    position: relative;
    width: 200px;
    height: 150px;
}
.cgo_l > div section h4,.con2_se2 a p,.ad p{
    position: absolute;
    height: 30px;
    left: 0;
    bottom: 0;
    background-color:rgba(0, 0, 0, 0.5);
    width: 100%;
    margin: 0;
    color: #fff;
    padding-left: 10px;
    font-size: 14px;
    line-height: 30px;
    overflow: hidden;
}
.cgo_l > div img{
    display: block;
    width: 100%;
    height: 100%;
}
.cgo_l > div p{
    width: calc(100% - 210px);
}
.cgo_l p{
    font-size: 14px;
    line-height: 28px;
    text-indent: 2em;
}
.cgo_l div + p{
    margin-top: 10px;
}
.cgo > section > div{
    display: flex;
    justify-content: space-between;
    padding-top: 15px;
}

.cgo_c{
    text-align: right;
}
.cgo_list{
    width: 48%;
}
.cgo_list li{
    font-size: 14px;
    line-height: 30px;
    position: relative;
}
.cgo_list li:nth-child(1){
    font-size: 16px;
    font-weight: 700;
}
.cgo_list li:nth-child(2){
    font-size: 16px;
}
.cgo_list li:nth-child(3){
    font-size: 15px;
}
.cgo_c li::after{
    content: "";
    position: absolute;
    background-color: #bbb;
    width: 6px;
    height: 6px;
    transform: rotate(45deg);
    right: -18px;
    top: 12px;
}
.cgo_c li:nth-child(1)::after{
    background-color: red;
}
.cgo_c li:nth-child(2)::after{
    background-color: orangered;
}
.cgo_c li:nth-child(3)::after{
    background-color: yellowgreen;
}

/* ************** */
.inter{
    display: flex;
    justify-content: space-between;
    margin-top: 15px;
    margin-bottom: 20px;
}
.inter > li{
    width: 23%;
    position: relative;
    border-top: 1px solid red;
    overflow: hidden;
    padding-top: 1px;
}
.inter > li:nth-child(2){
    border-top: 1px solid rgb(0, 255, 221);
}
.inter > li:nth-child(3){
    border-top: 1px solid rgb(0, 68, 255);
}
.inter > li:nth-child(4){
    border-top: 1px solid rgb(223, 102, 247);
}
.inter > li > a{
    display: block;
}
.inter > li img{
    display: block;
    width: 100%;
    height: 300px;
}
.inter > li div{
    position: absolute;
    width: 100%;
    color: rgb(255, 255, 255);
    padding: 0 10px;
    bottom: -104px;
    background-color: rgba(0, 0, 0, 0.5);
    transition: all .2s linear;
}
.inter > li h4{
    line-height: 40px;
    font-size: 16px;
}
.inter > li p{
    font-size: 14px;
    text-indent: 2em;
    line-height: 28px;
    padding: 10px 0;
    height: 104px;
}
.inter > li:hover div{
    bottom: 0;
    background-color: #4e6ef2;
}
/* ******************* */
.con2{
    display: flex;
    justify-content: space-between;
    margin-bottom: 20px;
}
.con2_l{
    width: 880px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}
.con2_r{
    width: 300px;
}
.con2_l > div{
    width: 48%;
}
.con2_l > div > h4{
    font-size: 16px;
    margin: 15px 0;
    color: #000;
}
.con2_l .con2_se1{
    display: flex;
    justify-content: space-between;
}
.con2_l .con2_se1 a{
    display: block;
    width: 150px;
}
.con2_l .con2_se1 a img{
    width: 100%;
    display: block;
}
.con2_l .con2_se1 p{
    width: calc(100% - 160px);
    font-size: 14px;
    text-indent: 2em;
    line-height: 30px;
}
.con2_l section + ul {
    margin-top: 10px;
}
.con2_l section + ul li{
    position: relative;
}
.con2_l section + ul li a{
    display: block;
    font-size: 14px;
    line-height: 30px;
    white-space:nowrap;
    overflow:hidden;
    text-overflow:ellipsis;
    padding-left: 20px;
}
.con2_l section + ul li::after{
    content: "";
    position: absolute;
    background-color: #bbb;
    width: 6px;
    height: 6px;
    transform: rotate(45deg);
    left: 0;
    top: 12px;
}
.con2_l section + ul li:nth-child(1)::after{
    background-color: red;
}
.con2_l section + ul li:nth-child(2)::after{
    background-color: orangered;
}
.con2_l section + ul li:nth-child(3)::after{
    background-color: yellowgreen;
}

.con2_se2{
    display: flex;
    justify-content: space-between;
}
.con2_se2 a{
    position: relative;
    width: 48%;
}
.con2_se2 a img{
    display: block;
    width: 100%;
}

.con2_l .list_con a{
    color: #1f3b7b;
    font-size: 14px;
    line-height: 30px;
}
.con2_l .list_con .dot a{
    /* font-size: 16px; */
    font-weight: 700;
}

.con2_r > h4{
    font-size: 14px;
    margin: 10px 0;
}
.con2_r .con2_as{
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.con2_r .con2_as a{
    display: block;
}
.con2_r .con2_as img{
    width: 110px;
    display: block;
}
.con2_r .con2_as p{
    font-size: 14px;
    color: #666;
    line-height: 25px;
    width: 180px;
}
.ad{
    position: relative;
    margin: 10px 0;
}
.ad a{
    display: block;
}
.ad img{
    width: 100%;
}
.ad span{
    position: absolute;
    padding: 2px 4px;
    font-size: 12px;
    background-color: rgba(0, 0, 0, 0.541);
    color: #fefefe;
    top: 0;
    right: 0;
}

/* ********************* */

.con3{
    display: flex;
    justify-content: space-between;
}
.con3 > div{
    width: 32%;
}
.con3 .con3_l ul{
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}
.con3 .con3_l ul li{
    width: 32%;
    margin-top: 10px;
}

.con3 .con3_l img{
    display: block;
    width: 100%;
}
.con3 .con3_l p{
    font-size: 14px;
    margin: 5px 0;
}
.con3 .con3_l ol li,.con3_r section + ul li{
    position: relative;
    line-height: 25px;
    font-size: 14px;
    padding-left: 15px;
  
}
.con3 li a{
    display: block;
    white-space:nowrap;
    overflow:hidden;
    text-overflow:ellipsis;
}
.con3 .con3_l ol li:first-child a{
    color: #000;
}
.con3 .con3_l ol li::after,.con3_r section + ul li::after{
    content: "";
    position: absolute;
    background-color: #bbb;
    width: 6px;
    height: 6px;
    transform: rotate(45deg);
    left: 0;
    top: 10px;
}
.con3 .con3_c ul{
    margin-top: 10px;
}
.con3 .con3_c li{
    position: relative;
    line-height: 25px;
    font-size: 14px;
}
.con3 .con3_c li > a{
    color: #1f3b7b;
    padding-left: 10px;
}
.con3 .con3_c li::after{
    content: "";
    position: absolute;
    background-color: #1f3b7b;
    width: 4px;
    height: 4px;
    /* transform: rotate(45deg); */
    left: 0;
    top: 14px;
}

.con3 .con3_list{
    margin-top: 10px;
}
.con3 .con3_list li{
    display: flex;
    justify-content: space-between;
    margin-top: 15px;
}
.con3 .con3_list img{
    width: 150px;
    height: 100px;
    display: block;
}
.con3 .con3_list div{
    width: calc(100% - 160px);
}
.con3 h4{
    font-size: 14px;
    margin-bottom: 10px;
}
.con3 .con3_list p{
    font-size: 14px;
    color: #666;
    text-indent: 2em;
}
.con3 .con3_r h4{
    margin: 10px 0;
}

.con3_r section + ul{
    margin-top: 10px;
}

/* *************** */
footer{
    border-top: 1px solid #ccc;
    text-align: center;
    font-size: 14px;
    line-height: 30px;
    padding: 50px 0;
    margin-top: 20px;
}
footer a{
    margin: 0 10px;
}
.return{
    position: fixed;
    bottom: 100px;
    right: 100px;
    background-color: #fff;
    display: none;
}