*{
    padding: 0;
    margin: 0;
}
html, body {
    min-width: 1360px;
    min-height: 768px;
    width: 100%;
    height: 100%;
}


#app {
    position: relative;
    width: 100%;
    height: 100%;
    background: url(../image/BJ.png) no-repeat;
    background-size: cover;
    display: flex;
    flex-direction: row;
}

.tu {
    width: 37.5%;
    background: url(../image/tu.png) no-repeat;
    background-size: contain;
    
}
.right {
    position: relative;
    width: 62.5%;
    height: 100%;
}
.logo {
    position: absolute;
    top: 9rem;
    left: 8.9rem;
    display: flex;
    flex-direction: column;
}
.logo img {
   object-fit: contain;
   width: 27rem;

}

.title {
    font-size: 7rem;
    white-space: nowrap;
    font-family: PingFang SC;
    font-weight: 550;
    color: #1F2328;
    letter-spacing: 2rem;
}

.download-wrap-pro {
    position: absolute;
    top: 30rem;
    left: 10.4rem;
    display: flex;
    flex-direction: column;
}
.download-wrap-pro span:first-child {
    font-family: PingFang SC;
    font-size: 3rem;
    font-weight: 500;
    color: #1F2328;
}


.func-div {
    position: absolute;
    top: 70.5rem;
    left: 14.4rem;
    display: flex;
    flex-direction: column;
}
.func-div span {
    font-family: PingFang SC;
    font-size: 1.8rem;
    font-weight: 400;
    color: #1F2328;
}

.func-div a {
  color: #5985F9;

}

.download-wrap {
    position: absolute;
    top: 53rem;
    left: 10.4rem;
    display: flex;
    flex-direction: column;
}
.download-wrap span:first-child {
    font-family: PingFang SC;
    font-size: 3rem;
    font-weight: 500;
    color: #318bff;
}



.download-list-pro {
    position: absolute;
    width: 74rem;
    display: flex;
    top: 42rem;
    justify-content: space-between;
    left: 8.4rem;
 }

.download-list {
   position: absolute;
   width: 74rem;
   display: flex;
   top: 58rem;
   justify-content: space-between;
   left: 10.4rem;
}
.download-item {

   height: 14rem;

}
.download-img {
    position: relative;
    overflow: hidden;
    width: 13rem;
    height: 13rem;
    border-radius: 10px;
    box-shadow: 0 4px 9px 0 rgba(72,80,119,0.14);
    background:#FFF;
    opacity: 0.9;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    margin: auto;
}

.windows img {
   width: 3.5rem;
}

.windows:hover .text{
    opacity: 0;
    transform: translateY(-1rem);
}
.windows:hover .text-hover{
    opacity: 0.91;
    transform: translateY(-2.3rem);
}

.mac img {
   width:  5rem;
}
.mac:hover .text{
    opacity: 0;
    transform: translateY(-1rem);
}
.mac:hover .text-hover{
    opacity: 0.91;
    transform: translateY(-2.5rem);
}
.ios .download-img > img {
    width: 3.5rem;
}

.ios:hover .text{
    opacity: 0;
    transform: translateY(-1rem);
}
.ios:hover .text-hover{
    opacity: 0.91;
    transform: translateY(-2.5rem);
}
.ios:hover .arrow {
    top: -6vw;
    right: -6vw;
    transition: all .2s ease;
}
.ios_pro:hover .arrow {
    top: -6vw;
    right: -6vw;
    transition: all .2s ease;
}
.android .download-img > img {
   width: 5rem;
}
.android:hover .text{
    opacity: 0;
    transform: translateY(-1rem);
}
.android:hover .text-hover{
    opacity: 0.91;
    transform: translateY(-2.5rem);
}
.android:hover .arrow {
    top: -6vw;
    right: -6vw;
    transition: all .2s ease;
}
.android_pro:hover .arrow {
    top: -6vw;
    right: -6vw;
    transition: all .2s ease;
}

#win-download {
    display: none;
    width: 0;
    height: 0;
    opacity: 0;
    background: url(../image/xz.png) center center no-repeat;
}
#mac-download {
    display: none;
    width: 0;
    height: 0;
    opacity: 0;
    background: url(../image/xz.png) center center no-repeat;
}

#android-qr {
    display: none;
    width: 0;
    height: 0;
    opacity: 0;
}
#android-qr img {
    width: 4.5vw;
    height: 4.5vw;
}

#ios-qr {
    display: none;
    width: 0;
    height: 0;
    opacity: 0;
}

#ios-qr img {
    width: 4.5vw;
    height: 4.5vw;
}
#win-download_pro {
    display: none;
    width: 0;
    height: 0;
    opacity: 0;
    background: url(../image/xz.png) center center no-repeat;
}
#mac-download_pro {
    display: none;
    width: 0;
    height: 0;
    opacity: 0;
    background: url(../image/xz.png) center center no-repeat;
}

#android-qr_pro {
    display: none;
    width: 0;
    height: 0;
    opacity: 0;
}
#android-qr_pro img {
    width: 6vw;
    height: 6vw;
}

#ios-qr_pro {
    display: none;
    width: 0;
    height: 0;
    opacity: 0;
}

#ios-qr_pro img {
    width: 6vw;
    height: 6vw;
}

.arrow {
    position: absolute;
    width: 0;
    height: 0;
    top: -3vw;
    right: -3vw;
    border-top: 3vw solid transparent;
    border-bottom: 3vw solid transparent;
    border-left: 3vw solid #356FFF;
    border-right: 3vw solid transparent;
    transform: rotateZ(-45deg);
    transition: all .2s ease;
}

.arrow img {
    position: absolute;
    width: 1.5vw;
    right: 1vw;
    top: -0.7vw;
    transform: rotateZ(45deg);
}

.text {
    cursor: pointer;
    font-size: 2rem;
    font-family: PingFang SC;
    font-weight: 400;
    color: #1F2328;
    white-space: nowrap;
    opacity: .91;
    margin-top: 2rem;
    text-align: center;
    transition: all .2s ease;
}
.text-hover {
    cursor: pointer;
    font-size: 2rem;
    font-family: PingFang SC;
    font-weight: 400;
    color: #1F2328;
    white-space: nowrap;
    text-align: center;
    opacity: 0;
    transition: all .2s ease;
}

.text-ver {
    cursor: pointer;
    font-size: 1.5rem;
    font-family: PingFang SC;
    font-weight: 400;
    color: #1f2328c2;
    white-space: nowrap;
    opacity: .91;
    margin-top: 1rem;
    text-align: center;
    transition: all .2s ease;
}

.cocall-thunisoft {
    position: absolute;
    top: 77rem;
    left: 10.4rem;
    font-family: PingFang SC;
    font-size: 1.5rem;
    font-weight: 500;
    color: red;
}

.cocall-introduction {
    position: absolute;
    top: 72rem;
    left: 10.4rem;
    font-family: PingFang SC;
    font-size: 2.5rem;
    font-weight: 500;
}

.cocall-updateinfo {
    position: absolute;
    top: 35rem;
    left: 10.4rem;
    font-family: PingFang SC;
    font-size: 2rem;
    font-weight: 500;
}

.cocall-introduction a {
    text-decoration: none;
}

.cocall-updateinfo a {
    text-decoration: none;
}