.titlen {
    width: 1200px;
    display: flex;
    align-items: center;
    position: relative;
    z-index: 100;
    height: 90px;
    margin: 0 auto;
}

.headContent {
    transition: all .3s;
    height: 90px;
    top: 0;
    position: relative;
    width: 100%;
    z-index: 101;
    color: #000;
}

.imgs {
    width: 93px;
    height: 32px;
}

.imgs > img {
    width: 100%;
    height: 100%;
    display: block;
}

.tagList {
    width: 80%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-left: auto;
    height: 100%;
}

.tag_item {
    padding: 28px 0;
}

a {
    text-decoration: none;
    font-size: 16px;
    color: #ffffff;
}

.tag_derivation {
    position: fixed;
    top: 90px;
    left: 0;
    z-index: 100;
    background: #fff;
    transition: all .3s;
    height: 0;
    width: 100vw;
    overflow: hidden;
}

.derCenter {
    width: 1200px;
    margin: 0 auto;
    display: flex;
    align-content: center;
    padding: 30px 0;
}

.derCenter .der_left {
    width: 40%;
    padding-left: 150px;
}

.der_left_title {
    font-size: 14px;
}

.der_right_title {
    font-size: 14px;
}

.derCenter .der_right {
    width: 60%;
    padding-left: 50px;
}

.der_left_body {
    border-right: 1px solid #ddd;
}

.der_left_item {
    display: flex;
    margin-top: 25px;
}
.der_left_item >img{
    display: block;
    width: 18px;
    height: 18px;
    margin-right: 20px;
    margin-top: 5px;
}

.der_item_msg {

}

.der_item_msg .der_item_t1 {
    color: #333333;
    font-size: 16px;
}

.der_item_msg .der_item_t2 {
    margin-top: 10px;
    color: #999999;
    font-size: 14px;
}

.der_right_msg{
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    margin-top: 25px;
}
.der_right_msg .der_item_msg{
    width: 50%;
}
.der_item_msg>img{
    display: block;
    width: 18px;
    height: 18px;
    margin-top: 5px;
    margin-right: 20px;
}
.dis{
    display: flex;
}