.banner {
    width: 100%;
    height: 700px;
    background: url(../images/big.jpg) no-repeat;
    background-size: cover;
    margin-top: 80px;
    position: relative;
}

/* banner区域 */
.banner_mid {
    width: 20%;
    /* height: 200px; */
    /* background-color: pink; */
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.banner_mid>h1 {
    font-size: 42px;
    color: #17C5CD;
    font-weight: 600;
}

.banner_mid>h2 {
    font-size: 21px;
    color: #6d6d6d;
    margin-top: 20px;
    margin-bottom: 30px;
    /* font-weight: 600; */
}

.banner_mid>p {
    width: 150px;
    height: 60px;
    line-height: 60px;
    background-color: #17C5CD;
    font-size: 18px;
    margin: 0 auto;
}

.banner_mid>p:hover {
    width: 150px;
    height: 60px;
    line-height: 60px;
    background-color: #15abb3;
    font-size: 18px;
    margin: 0 auto;
    cursor: pointer;
}

.banner_mid>p>a {
    color: #fff;
}

.compony_self {
    width: 100%;
    height: 575px;
}


.con_left {
    width: 56%;
    height: 200px;
    /* background-color: pink; */
    padding-right: 10%;
}

.con_left>h1 {
    font-size: 38px;
    font-weight: 600;
    color: #fff;
    margin-top: 100px;
}

.con_left>p {
    font-size: 18px;
    /* font-weight: 600; */
    color: #fff;
    margin-top: 20px;
    line-height: 30px;
}

.self_left {
    width: 50%;
    height: 100%;
    background-color: #17C5CB;
}

.self_right {
    width: 50%;
    height: 100%;
    background: url(../images/right.jpg) no-repeat;
    background-size: cover;
}

.course {
    width: 100%;
    /* height: 1000px; */
    background-color: #EFEFEF;
    padding-bottom: 20px;
}

.nav {
    height: 100%;
    /* background-color: palevioletred; */
}

.nav_left {
    width: 30%;
}

.nav_left>h1 {
    font-size: 42px;
    color: #17c5cb;
    margin-top: 50px;
}


.nav_right {
    width: 70%;
    height: 100%;
    /* width: 100%; */
    margin-top: 50px;


}

.line {
    border-left: 2px solid #17c5cb;
    height: 170px;
}

.article_left {
    position: relative;
    padding-left: 20px;
}

.article_left>span {
    display: inline-block;
    width: 15px;
    height: 15px;
    background-color: #17c5cb;
    position: absolute;
    top: 30%;
    left: -8px;
}

.article_left>h1 {
    font-size: 30px;
    font-weight: 600;
    color: #17C5CB;
    margin-top: 20px;
}

.article_left>p {
    font-size: 28px;
    /* font-weight: 600; */
    color: #17C5CB;
    margin-top: 20px;
}

.article_left {
    width: 40%;
}

.article_right {
    width: 40%;
    font-size: 16px;
    color: #6d6d6d;
    line-height: 30px;
}

/* item */
.item {
    width: 100%;
    height: 1250px;
    background: url(../images/floor.jpg) no-repeat;
    background-size: cover;
}

.item_top {
    width: 50%;
    height: 520px;
    /* background-color: pink; */
    margin-left: 50%;
    margin-bottom: 15%;
}

.item_top>.left {
    width: 45%;
    height: 420px;
    background-color: #1A1A1A;
    padding: 10% 3%;
}

.item_top>.left>h1 {
    font-size: 38px;
    font-weight: 600;
    color: #fff;
}

.item_top>.left>p {
    font-size: 18px;
    color: rgb(136, 133, 133);
    margin-top: 20px;
    line-height: 30px;
}

.item_top>.right {
    width: 48%;
    height: 100%;

}

.right_top {
    width: 100%;
    height: 250px;
    background-color: #E02B20;
    margin-bottom: 20px;
}

.item_top>.right>.right_top>h1 {
    font-size: 40px;
    color: #fff;
    padding-top: 45%;
    padding-left: 20px;
    font-weight: 600;
}

.item_top>.right>.right_top>p {
    font-size: 20px;
    color: #fff;
    padding-top: 20px;
    padding-left: 20px;
    /* font-weight: 600; */
}

.right_bom {
    width: 100%;
    height: 200px;
    background-color: #fff;
    margin-top: 35px;
}

.right_bom>h1 {
    font-size: 40px;
    color: #000;
    padding-top: 30%;
    padding-left: 20px;
    font-weight: 600;
}

.right_bom>p {
    font-size: 20px;
    color: rgb(90, 89, 89);
    padding-top: 20px;
    padding-left: 20px;
    /* font-weight: 600; */
}

.people {
    width: 100%;
    height: 230px;
    background-color: #fff;
    border-top: 3px solid red;
}

.item_mid>h1 {
    font-size: 55px;
    color: #fff;
    font-weight: 600;
}

.item_mid>h2 {
    font-size: 40px;
    color: #fff;
    margin-bottom: 30px;
    margin-top: 10px;

}

.people {
    display: flex;
    justify-content: space-around;
    padding: 0 5%;
    text-align: center;
    padding-top: 40px;
}

.people_one {
    width: 33%;
}

.people_one>img {
    width: 85px;
    margin-bottom: 20px;
}

.people_one>h3 {
    margin-bottom: 20px;
}

.adress_one>span>img {
    width: 30px;
}

.adress_one>span {
    font-size: 20px;
    color: #fff;
    font-weight: 600;
}

.adress_one>p {
    font-size: 15px;
    color: #fff;
    padding-left: 35px;
    margin-top: 15px;
    line-height: 25px;
}

.adress {
    display: flex;
    justify-content: space-around;
    padding: 0 5%;
    text-align: center;
    padding-top: 35px;
}