* {
    padding: 0px;
    margin: 0px;
}

.index-bj {
    width: 100%;
    height: 450px;
    background-image: url(../image/index-beij.png);
    background-size: 100% 450px;
    background-repeat: no-repeat;
    position: relative;
    overflow: hidden;
}

.index-nav {
    width: 100%;
    height: 47px;
    background: linear-gradient(to top, #35880d, #83b66a);
    /* opacity: 0.55; */
    position: absolute;
    top: 237px;
}

.as-return {
    width: 1225px;
    height: 47px;
    margin: 0 auto;
    display: flex;
    justify-content: space-around;
    position: relative;
    /* background-color: pink; */
}

.as-return ul {
    width: 1225px;
    height: 47px;
    display: flex;
    justify-content: space-between;
    list-style: none;
    margin: 0px;
    padding: 0px;
}

.as-return ul li a {
    text-decoration: none;
    color: #ffffff;
    outline: none;
}

.as-return li {
    width: 115px;
    height: 47px;
    font-size: 18px;
    text-align: center;
    line-height: 47px;
}

.as-return .actvi {
    background-color: #177422;
}

.as-return ul li:hover {
    background-color: #177422;
}

.index-bjTetle {
    width: 970px;
    height: 120px;
    /* background-color: pink; */
    margin: 0 auto;
    margin-top: 63px;
}

.index-bjImg {
    width: 670px;
    height: 120px;
    background-image: url(../image/index-bj.png);
    background-size: 589px, 120px;
    background-repeat: no-repeat;
}