body {
    overflow-x: hidden;
}

.wrap {
    width: 70%;
    max-width: 1500px;
    min-width: 1000px;
    /* width: 1190px; */
    margin: 0 auto;
}

img {
    display: inline-block;
}

.page_height {
    height: 760px;
}

.line {
    width: 94px;
    height: 8px;
    background: rgba(0, 199, 146, 1);
    border-radius: 4px;
    display: block;
    margin-bottom: 15px;
}

/* 第一部分 */
.app_box_1 {
    height: 700px;
    width: 100%;
    background: url(http://upload.hteacher.net/webupload/common/app/banner_bg.png) center top no-repeat;
    box-sizing: border-box;
}

.app_box_1 .banner {
    display: flex;
    padding-top: 107px;
    justify-content: space-between;
    box-sizing: border-box;
}

.app_box_1 .banner_ewm {
    display: flex;
}

.app_box_1 .app_download {
    margin-left: 35px;
}

.app_box_1 .app_download li {
    background-color: #fff;
    width: 203px;
    height: 63px;
    background: rgba(255, 255, 255, 1);
    border-radius: 32px;
    display: flex;
    align-items: center;
    color: #00C792;
    margin-top: 16px;
}

.app_box_1 .app_download li a {
    display: block;
    width: 100%;
    height: 100%;
    color: #00C792;
    display: flex;
    align-items: center;
    font-size: 18px;
}

.app_box_1 .app_download img {
    margin-right: 16px;
    margin-left: 26px;
}

.app_box_1 .banner_title {
    font-size: 90px;
    color: rgba(255, 255, 255, 1);
    margin-top: 90px;
    margin-bottom: 40px;
}

/* 第二部分 */
.app_box_2 {
    background: rgba(255, 255, 255, 1);
}

.box_2 {
    display: flex;
    padding-top: 99px;
    position: relative;
    height: 660px;
    justify-content: space-between;
}

.left h2 {
    font-weight: bold;
    color: rgba(32, 44, 41, 1);
    font-size: 48px;
    margin-top: 187px;
    margin-bottom: 15px;
}

.left p {
    color: rgba(45, 57, 54, 1);
    line-height: 40px;
    font-size: 18px;
}

.box_2 .img_2 {
    position: absolute;
    bottom: -1px;
    right: 225px;
}

.box_2 .img_3 {
    margin-top: 90px;
}

/* 第三部分 */
.app_box_3 {
    background: rgba(249, 249, 249, 1);
}

.box_3 {
    display: flex;
    padding-top: 100px;
    position: relative;
    height: 660px;
    justify-content: space-between;
}

.box_3 .img_5 {
    margin-top: 90px;
}

.box_3 .img_4 {
    position: absolute;
    bottom: 0;
    left: 120px;
    z-index: 1;
}

.box_3 .img_6 {
    position: absolute;
    bottom: 0;
    left: 314px;
}

/* 第四部分 */
.app_box_4 {
    background: rgba(255, 255, 255, 1);
}

.footer p {
    color: #fff;
}