body {
    background-color: #fff;
    padding-top: 120px;
}

.download-banner {
    width: 100%;
    height: 520px;
    background-image: url('../image/download/top_bg.png');
    background-position: top center;
    background-size: 1920px 520px;
    background-repeat: no-repeat;
}

.download-banner .main-body {
    position: relative;
}

.download-banner .plast-title {
    width: 435px;
    height: 134px;
    position: absolute;
    top: 72px;
    left: 0;
}

.download-banner .plast-intr {
    width: 410px;
    height: 216px;
    position: absolute;
    top: 246px;
    left: 0;
}

.download-banner .plast-phone {
    width: 420px;
    height: 520px;
    position: absolute;
    top: 0px;
    right: 0;
}

.center-box {
    width: 196px;
    margin: 130px auto 0;
}

.center-box .down-code {
    width: 196px;
    display: block;
}

.center-box .android-btn,
.center-box .ios-btn {
    width: 196px;
    height: 52px;
    display: block;
    margin-top: 16px;
    cursor: pointer;
}

.down-case-title {
    font-size: 34px;
    font-weight: bold;
    line-height: 40px;
    text-align: center;
    color: #292929;
    position: relative;
    width: 340px;
    margin: 72px auto 0;
}

.down-case-title::before,
.down-case-title::after {
    content: '';
    position: absolute;
    width: 42px;
    height: 20px;
    top: 14px;
    background-size: cover;
}

.down-case-title::before {
    left: 0;
    background-image: url('../image/download/title_l_ico.png');
}

.down-case-title::after {
    right: 0;
    background-image: url('../image/download/title_r_ico.png');
}

.content-container {
    width: 1200px;
    margin: 0 auto;
}

.core-services {
    overflow: hidden;
    margin-top: 56px;
}

.core-services li {
    height: 220px;
    width: 586px;
    border-radius: 8px;
    padding: 32px 26px 0 32px;
    float: left;
    margin-bottom: 24px;
    padding-left: 116px;

    background: linear-gradient(180deg, #F0F5FF 0%, rgba(240, 245, 255, 0) 100%);
    position: relative;
}

.core-services li::before {
    content: '';
    position: absolute;
    background-image: url('../image/download/1.png');
    width: 68px;
    height: 68px;
    background-size: cover;
    top: 32px;
    left: 32px;
}

.core-services li:nth-child(2)::before {
    background-image: url('../image/download/2.png');
}

.core-services li:nth-child(3)::before {
    background-image: url('../image/download/3.png');
}

.core-services li:nth-child(4)::before {
    background-image: url('../image/download/4.png');
}

.core-services li:nth-child(2n) {
    float: right;
}

.core-services li h6 {
    font-size: 22px;
    font-weight: 500;
    line-height: 30px;
    color: #292929;
    margin-bottom: 8px;
}

.core-services li p {
    font-size: 14px;
    font-weight: normal;
    line-height: 22px;
    text-align: justify; /* 浏览器可能不支持 */
    color: #525354;
    margin: 0;
}

.aboute-us-title {
    margin-top: 102px;
}

.aboute-us {
    font-size: 16px;
    font-weight: normal;
    line-height: 26px;
    text-align: center;
    color: #292929;
    margin-top: 48px;
    padding-bottom: 112px;
}