.clear {
    clear: both;
}
html,body {
    margin: 0;
    padding: 0;
    background: #f0f2f5;
}
/* 页头 */
.head {
    width: 100%;
    height: 60px;
    background: #FFFFFF;
}
.head .head_logo {
    float: left;
    height: 44px;
    margin-top: 8px;
    margin-left: 24px;
}
.head .head_logo img {
    width: 100%;
    height: 100%;
}
.head .head_right {
    height: 100%;
    float: right;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-right: 48px;
}
.head .head_right .head_nav {
    display: block;
    text-decoration: none;
    font-size: 16px;
    color: #4B5563;
    cursor: pointer;
    margin-right: 24px;
}
.head .head_right .head_btn {
    background: #00A3FF;
    color: #FFFFFF;
    border-radius: 4px;
    padding: 6px 16px;
    text-decoration: none;
}

/* 主体 */
.page {
    width: 100%;
}
.page .page_banner {
    width: 100%;
    height: 350px;
    background-image: url(banner.png);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    overflow: hidden;
}
.page .page_banner .page_banner_title {
    color: #1F2937;
    font-size: 40px;
    font-weight: bold;
    line-height: 40px;
    margin-top: 68px;
    margin-left: 3%;
    margin-bottom: 20px;
}
.page .page_banner .page_banner_intro {
    color: #FFFFFF;
    font-size: 16px;
    margin-top: 5px;
    margin-left: 3%;
}
.page .page_banner .page_banner_btn {
    display: block;
    text-align: center;
    border-radius: 4px;
    width: 120px;
    height: 40px;
    line-height: 40px;
    background: #00A3FF;
    color: #FFFFFF;
    text-decoration: none;
    margin: 40px 0 0 3%;
}
.page .page_core {
    width: 100%;
    background: #f9fafb;
    padding-bottom: 80px;
    overflow: hidden;
}
.page .page_core .page_core_title {
    width: 100%;
    text-align: center;
    font-size: 24px;
    font-weight: bold;
    margin: 80px 0 60px 0;
}
.page .page_core .page_core_bit_box {
    width: 94%;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
}
.page .page_core .page_core_bit_box .page_core_box {
    width: 32%;
    background: #FFFFFF;
    border-radius: 8px;
    padding-bottom: 22px;
}
.page .page_core .page_core_bit_box .page_core_box .page_core_box_img {
    width: 44px;
    height: 44px;
    margin: 22px;
}
.page .page_core .page_core_bit_box .page_core_box .page_core_box_img img {
    width: 100%;
    height: 100%;
}
.page .page_core .page_core_bit_box .page_core_box .page_core_box_name {
    font-size: 16px;
    font-weight: bold;
    margin-left: 22px;
}
.page .page_core .page_core_bit_box .page_core_box .page_core_box_intro {
    font-size: 14px;
    margin-left: 22px;
    margin-top: 22px;
}
.page .page_download {
    width: 94%;
    margin: 80px auto;
    border-radius: 8px;
    background: linear-gradient(to right, #00A3FF, #0066CC);
    overflow: hidden;
}
.page .page_download .page_download_title {
    width: 100%;
    text-align: center;
    color: #FFFFFF;
    font-size: 24px;
    font-weight: bold;
    margin-top: 50px;
    margin-bottom: 20px;
}
.page .page_download .page_download_intro {
    width: 100%;
    text-align: center;
    color: #FFFFFF;
    font-size: 14px;
    margin-bottom: 10px;
}
.page .page_download .page_download_btn {
    display: block;
    width: 160px;
    height: 42px;
    margin: 40px auto 50px auto;
}
.page .page_download .page_download_btn img {
    width: 100%;
    height: 100%;
}

/* 页脚 */
.foot {
    width: 100%;
    background: #000000;
    overflow: hidden;
}
.foot .foot_container {
    width: 94%;
    margin: 50px auto 100px auto;
    display: flex;
    justify-content: space-between;
}
.foot .foot_container .foot_row .foot_title {
    color: #FFFFFF;
    font-size: 14px;
    margin-bottom: 15px;
}
.foot .foot_container .foot_row .foot_link {
    display: block;
    color: #9CA3AF;
    font-size: 14px;
    text-decoration: none;
    margin-bottom: 10px;
}
.foot .foot_container .foot_row .foot_row_img {
    display: block;
    width: 23px;
    height: 28px;
}
.foot .foot_container .foot_row .foot_row_img img {
    width: 100%;
    height: 100%;
}
.foot .foot_copyright {
    width: 100%;
    color: #9CA3AF;
    text-align: center;
    margin-bottom: 50px;
}