.android_banner {
    margin-top: -4px;
}

.android_main1 {
    width: 100%;
    height: 1673px;
    background-color: #242d42;
}

.android_part1 {
    width: 1200px;
    height: 1600px;
    margin: 0 auto;
    padding-top: 100px;
}

.part1_z {
    width: 620px;
    height: 60px;
    font-size: 60px;
    line-height: 60px;
    text-align: center;
    font-family: MicrosoftYaHei-Bold;
    color: #ffffff;
    margin: 100px auto 30px;
}

.part1_z span {
    color: #57cb23;
}

.part2_z {
    width: 850px;
    height: 60px;
    font-size: 60px;
    line-height: 60px;
    text-align: center;
    font-family: MicrosoftYaHei-Bold;
    color: #ffffff;
    margin: 100px auto 30px;
}

.part2_z span {
    color: #57cb23;
}

.part1_t {
    width: 1200px;
    height: 42px;
    margin: 0 auto;
}

.part1_content {
    width: 1200px;
    height: 492px;
    margin: 0 auto;
    background-color: #303a51;
    padding-top: 50px;
}

.part_t1 {
    width: 270px;
    height: 492px;
    float: left;
    margin-right: 60px;
}

.part_t1 span {
    width: 270px;
    height: 30px;
    line-height: 30px;
    text-align: center;
    font-size: 24px;
    color: #ffffff;
}

.part_t1 img {
    width: 217px;
    height: 338px;
    margin-left: 10px;
    margin-top: 30px;
}

.part_t2 {
    width: 358px;
    height: 492px;
    float: left;
    margin-right: 60px;
}

.part_t2 span {
    width: 358px;
    height: 30px;
    display: block;
    line-height: 30px;
    text-align: center;
    font-size: 24px;
    color: #ffffff;
}

.part_t2 img {
    width: 358px;
    height: 338px;
    margin-left: 10px;
    margin-top: 30px;
}

.part_t3 {
    width: 413px;
    height: 492px;
    float: left;
}

.part_t3 span {
    width: 413px;
    height: 30px;
    display: block;
    line-height: 30px;
    text-align: center;
    font-size: 24px;
    color: #ffffff;
}

.part_t3 img {
    width: 413px;
    height: 340px;
    margin-left: 10px;
    margin-top: 30px;
}

.part1_content1 {
    width: 1200px;
    margin: 0 auto;
}

.part1_content1_l {
    width: 345px;
    height: 450px;
    float: left;
    margin-top: 100px;
}

.part1_content1_l1 {
    width: 345px;
    height: 185px;
    font-family: MicrosoftYaHei;
    font-size: 18px;
    font-weight: normal;
    line-height: 30px;
    color: #ffffff;
}

.part1_content1_l1 span {
    width: 345px;
    height: 27px;
    display: block;
    font-size: 26px;
    line-height: 27px;
    color: #57cb23;
    margin-bottom: 20px;
}

.part1_content1_l2 {
    width: 345px;
    height: 155px;
    font-family: MicrosoftYaHei;
    font-size: 18px;
    font-weight: normal;
    line-height: 30px;
    color: #ffffff;
    margin-top: 99px;
}

.part1_content1_l2 span {
    width: 345px;
    height: 27px;
    display: block;
    font-size: 26px;
    line-height: 27px;
    color: #57cb23;
    margin-bottom: 20px;
}

.part1_content1_c {
    width: 521px;
    height: 519px;
    float: left;
}

.part1_x {
    display: block;
    position: absolute;
    margin-left: 20px;
    margin-top: 50px;
    transition: All 1s ease-in-out;
    -webkit-transition: All 1s ease-in-out;
    -moz-transition: All 1s ease-in-out;
    -o-transition: All 1s ease-in-out;
}

.part1_x, .part2_t {
    -webkit-animation: imgrotate 4s linear infinite;
    -o-animation: imgrotate 4s linear infinite;
    animation: imgrorate 4s linear infinite;
}

@keyframes imgrorate {
    0% {
        transform: rotate(0deg)
    }
    25% {
        transform: rotate(-90deg)
    }
    50% {
        transform: rotate(-180deg)
    }
    75% {
        transform: rotate(-270deg)
    }
    100% {
        transform: rotate(-360deg)
    }
}

.part1_xz {
    width: 203px;
    height: 177px;
    display: block;
    position: absolute;
    margin-left: 180px;
    margin-top: 220px;
}

.part1_content1_r {
    width: 315px;
    height: 470px;
    float: left;
    margin-top: 100px;
    margin-left: 15px;
}

.part1_content1_r1 {
    width: 315px;
    height: 150px;
    font-family: MicrosoftYaHei;
    font-size: 18px;
    font-weight: normal;
    line-height: 30px;
    color: #ffffff;
}

.part1_content1_r1 span {
    width: 315px;
    height: 27px;
    display: block;
    font-size: 26px;
    line-height: 27px;
    color: #57cb23;
    margin-bottom: 20px;
}

.part1_content1_r2 {
    width: 315px;
    height: 155px;
    font-family: MicrosoftYaHei;
    font-size: 18px;
    font-weight: normal;
    line-height: 30px;
    color: #ffffff;
    margin-top: 79px;
}

.part1_content1_r2 span {
    width: 315px;
    height: 55px;
    display: block;
    font-size: 26px;
    line-height: 27px;
    color: #57cb23;
    margin-bottom: 10px;
}

.android_main2 {
    width: 100%;
    height: 900px;
    background: url("../img/android/background.png");
    background-position: center center;
    background-repeat: no-repeat;
    margin-top: -2px;
    padding-top: 5px;
}

.part2 {
    width: 1035px;
    height: 413px;
    margin: 55px auto 0;
}

.part2_l {
    width: 170px;
    height: 215px;
    float: left;
    margin-top: 200px;
}

.part2_l_1 {
    width: 170px;
    height: 215px;
    float: left;
    margin-left: 25px;
    margin-top: 170px;
}

.part2_l_2 {
    width: 170px;
    height: 215px;
    float: left;
    margin-left: 55px;
    margin-top: 130px;
}

.part2_l_3 {
    width: 170px;
    height: 215px;
    float: left;
    margin-left: 80px;
    margin-top: 75px;
}

.part2_l_4 {
    width: 170px;
    height: 215px;
    float: left;
    margin-left: 25px;
}

.part2_z1 {
    width: 170px;
    height: 24px;
    display: block;
    font-size: 22px;
    line-height: 24px;
    text-align: center;
    color: #ffffff;
}

.part2_z2 {
    width: 130px;
    height: 50px;
    display: block;
    position: absolute;
    margin-top: 80px;
    margin-left: 20px;
    font-size: 20px;
    color: #ffffff;
    line-height: 24px;
    text-align: center;
}

.part2_t {
    width: 170px;
    height: 169px;
    display: block;
    position: absolute;
    margin-top: 20px;
}

.android_main3 {
    width: 100%;
    height: 1248px;
    background-color: #242d42;
    padding-top: 20px;
}

#divcss5 {
    width: 1200px;
    margin: 50px auto 0;
}

.nav-down_1 {
    width: 1200px;
    height: 200px;
}

.nav_link {
    float: left;
    width: 300px;
    height: 181px;
}

.nav_z1 {
    display: block;
    width: 104px;
    height: 52px;
    font-family: MicrosoftYaHei-Bold;
    font-size: 36px;
    font-weight: bold;
    font-stretch: normal;
    line-height: 52px;
    letter-spacing: 0px;
    color: #ffffff;
    background-color: #31c1bb;
    text-align: center;
    margin: 0 auto;
}

.nav_z2 {
    display: block;
    width: 104px;
    height: 52px;
    font-family: MicrosoftYaHei-Bold;
    font-size: 36px;
    position: absolute;
    font-weight: bold;
    font-stretch: normal;
    line-height: 52px;
    letter-spacing: 0px;
    color: #ffffff;
    background-color: #31c1bb;
    text-align: center;
    margin-left: 100px;
    margin-top: 45px;
}

.nav_current .nav_z1 {
    background-color: #007eff;
}

.nav_current .nav_z2 {
    background-color: #007eff;
}

.nav_current .nav_t1 {
    width: 14px;
    height: 54px;
    display: block;
    margin: 0 auto;
    background: url("../img/android/4/4_01.png");
}

.nav_link .nav_t1 {
    width: 14px;
    height: 54px;
    display: block;
    margin: 0 auto;
    background: url("../img/android/4/4_01_1.png");
}

.nav_link .nav_t2 {
    width: 14px;
    height: 54px;
    display: block;
    position: absolute;
    margin-left: 145px;
    margin-top: -8px;
    background: url("../img/android/4/4_02.png");
}

.nav_current .nav_t2 {
    width: 14px;
    height: 54px;
    display: block;
    position: absolute;
    margin-left: 145px;
    margin-top: -8px;
    background: url("../img/android/4/4_02_2.png");
}

.nav_x1 {
    height: 3px;
    width: 300px;
    display: block;
    background-color: #31c1bb;
    margin-top: -8px;
    z-index: 1;
}

.nav_z1_z {
    width: 300px;
    height: 45px;
    display: block;
    margin: 20px auto 0;
    line-height: 23px;
    font-size: 20px;
    color: #ffffff;
    text-align: center;
}

.nav_z2_z {
    width: 300px;
    height: 86px;
    display: block;
    margin: 20px auto 0;
    line-height: 23px;
    font-size: 20px;
    color: #ffffff;
    text-align: center;
}

.nav_current {
    float: left;
    width: 300px;
    height: 181px;
}

.nav_current span {
    color: #ffffff;
}

.nav-down {
    margin-top: 50px;
}

.dis {
    border-left: 4px #57cb23 solid;
    border-right: 4px #57cb23 solid;
    padding: 30px 60px 30px 50px;
}

.undis {
    border-left: 4px #57cb23 solid;
    border-right: 4px #57cb23 solid;
    padding: 30px 60px 30px 50px;
}

.part3_b_t {
    width: 1200px;
    height: 47px;
}

#sub1 ul li {

    margin-top: 20px;
    font-size: 20px;
    color: #ffffff;
}

#sub2 ul li {
    margin-top: 20px;
    font-size: 20px;
    color: #ffffff;
}

#sub3 ul li {
    margin-top: 20px;
    font-size: 20px;
    color: #ffffff;
}

#sub4 ul li {
    margin-top: 20px;
    font-size: 20px;
    color: #ffffff;
}

.nav_z3 {
    display: block;;
    width: 500px;
    height: 37px;
    font-family: MicrosoftYaHei;
    font-size: 30px;
    font-weight: normal;
    font-stretch: normal;
    line-height: 37px;
    letter-spacing: 0px;
    color: #57cb23;
    text-align: center;
    margin: 0 auto;
}

.nav_z4 {
    display: block;;
    width: 700px;
    height: 37px;
    font-family: MicrosoftYaHei;
    font-size: 30px;
    font-weight: normal;
    font-stretch: normal;
    line-height: 37px;
    letter-spacing: 0px;
    color: #57cb23;
    text-align: center;
    margin: 0 auto;
}

.ios_part4 {
    width: 100%;
    height: 869px;
    background-color: #17202c;
    margin-top: -31px;
    padding-top: 30px;
}

.part4_z {
    width: 800px;
    height: 189px;
    font-family: MicrosoftYaHei-Bold;
    font-size: 70px;
    color: #ffffff;
    margin: 0 auto;
    padding: 100px 0 20px 0;
}

.part4_z1 {
    width: 390px;
    height: 110px;
    font-family: MicrosoftYaHei-Bold;
    font-size: 46px;
    color: #fcef0a;
    margin: 0 auto;
}

.zy-slide {
    /* 两个 section (前一张、后一张) 要做相对定位 */
    position: relative;
    width: 850px;
    height: 292px;
    margin: 50px auto 0;
    /*background-color: red;*/
    /* 799 - 754 = 45 */
}

.zy-slide ul {
    position: relative;
    width: 850px;
    height: 292px;

}

.zy-slide li {
    position: absolute;
    width: 0;
    height: 0;
    list-style: none;
    background-color: black;
    border-radius: 5px;
}

.zy-slide li img {
    width: 100%;
    height: 100%;
}