* {
    margin: 0;
    padding: 0;
    font-family: "PingFangSC-Regular,PingFangSC;"
}
a {
    color: #fff;
}
html, body {
    background: #fff;
}
main {
    margin: 0 120px;
}
.home {
    height: 100vh;
}
.home .logo {
    display: block;
    margin: 0 auto;
    padding-top: 100px;
    width: 22%;
}
.check_num {
    margin-top: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
}
.check_num .text {
    margin: 0 20px;
    font-size: 18px;
    font-family: "PingFangSC-Regular,PingFangSC";
    font-weight: 500;
    color:rgba(50,50,50,1);
    line-height: 25x;
}
.num_wrapper {
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.num_item {
    padding: 0 10px;
    font-size: 36px;
    line-height: 50px;
    font-family: "PingFangSC-Medium,PingFangSC";
    font-weight: 500;
    color:rgba(100,200,200,1);
}
.num_inner_wrapper {
    margin: 0 10px;
    display: flex; 
    justify-content: center; 
    align-items: center; 
    height: 48px; 
    border: 1px solid rgba(225,225,225,1);
}

/* core */
.core {
    width: 100%;
    height: 100vh;
}
.core .all {
    margin-top: 10px;
    margin-left: auto;
    margin-right: auto;
    width: 60%;
    position: relative;
}
.all .bg {
    width: 100%;
}
.all .desktop {
    position: absolute;
    bottom: 0;
    left: 30px;
    width: 48%;
    transform: translateY(50%);
}
.all .people01,
.all .people02,
.all .people03,
.all .people_sign02,
.all .people_sign03 {
    position: absolute;
    width: 10%;
}
.all .people01 {
    bottom: 0;
    left: 23%;
}
.all .people_sign01 {
    position: absolute;
    bottom: 25%;
    left: 23.5%;
    width: 12%;
}
.all .people02 {
    left: 13%;
    top: 38%;
}
.all .people_sign02 {
    left: 11%;
    top: 32%;
}
.all .people03 {
    left: 22%;
    top: 32%;
}
.all .people_sign03 {
    left: 23%;
    top: 26%;
}
.all .chart {
    position: absolute;
    width: 26.1%;
    bottom: -25%;
    right: -2%;
}

.all .chat {
    position: absolute;
    width: 8.33%;
    top: 21%;
    left: -7%;
    animation: myend 3s infinite;
}
.all .formula {
    position: absolute;
    width: 13.78%;
    top: 8%;
    left: 5%;
    animation: myfirst 3s infinite;
}
.all .iphone {
    position: absolute;
    top: 9%;
    right: -16%;
    width: 12.33%;
    animation: myfirst 3s infinite;
}
.all .circle {
    position: absolute;
    top: 35%;
    right: -14.2%;
    width: 9.5%;
}
.all .check {
    position: absolute;
    bottom: 20%;
    right: -5%;
    width: 11%;
    animation: myfirst 3s infinite;
}
.all .check .iphone2 {
    width: 100%;
    z-index: -100;
    display: block;
}
.all .check .line {
    position: absolute;
    z-index: 100;
    top: 25%;
    left: 5%;
    width: 80%;
    animation: mymove 3s infinite;
}
.all .check .face {
    position: absolute;
    top: 20%;
    left: 12%;
    width: 67%;
}
.all .text {
    position: absolute;
    min-width: 100px;
    width: 20%;
    font-size: 0.9em;
    line-height: 1.5;
    font-family: "PingFangSC-Regular,PingFangSC";
    font-weight: 400;
    color:rgba(144,144,144,1);
    background:rgba(255,255,255,1);
    box-shadow:0px 6px 20px 0px rgba(0,0,0,0.1);
    border-radius:10px;
    padding: 10px;
    display: none;
}
.all .doctor_text {
    left: -13%;
    top: 34%;
}
.all .engineer_text {
    left: 35%; 
    top: 26%;
}
.all .formula_text {
    top: 70%;
    left: 37%;
}

/* step */
.step {
    margin-left: 40px;
    margin-right: 25px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
}
.step img {
    margin: 125px 0;
    display: block;
    width: 41.7%;
}
.step .right {
    margin-left: 9.17%
}
.step .order {
    margin: 0;
    padding-left: 25px;
    font-size: 110px;
    line-height: 154px;
    font-family: "PingFangSC-Medium,PingFangSC";
    font-weight: 500;
    color:rgba(100,200,200,1);
    opacity: 0.3;
}
.step .desc_wrapper {
    border-left: 5px solid rgba(100,200,200,1);
    padding-left: 20px;
}
.desc_wrapper .title {
    margin: 0;
    font-size: 30px;
    line-height: 42px;
    font-family: "PingFangSC-Medium,PingFangSC";
    font-weight: 500;
    color:rgba(51,51,51,1);
    letter-spacing: 1px;
}
.desc_wrapper .desc {
    margin: 10px 0;
}

/* footer */
footer {
    background: #64C8C8;
    color:rgba(255,255,255,1);
    padding: 0 120px;
    padding-bottom: 30px;
    position: relative;
}
footer img {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    right: 160px;
    width: 120px;
}
footer .title {
    padding-top: 40px;
    padding-bottom: 20px;
    font-size:18px;
    font-family: "PingFangSC-Medium,PingFangSC";
    font-weight:500;
    color:rgba(255,255,255,1);
    line-height:25px;
}
footer .contact {
    margin: 6px 0;
    font-size:13px;
    font-family:PingFangSC-Medium,PingFangSC;
    font-weight:500;
    color:rgba(255,255,255,1);
    line-height:18px;
}
footer .copyright {
    text-align: center;
    margin-top: 30px;
    font-size: 12px;
    font-family:PingFangSC-Regular,PingFangSC;
    font-weight:400;
    color:rgba(255,255,255,1);
    line-height:17px;
}
footer .filing{
    display: block;
    text-align: center;
    font-size: 12px;
    font-family:PingFangSC-Regular,PingFangSC;
    font-weight:400;
    color:rgba(255,255,255,1);
    line-height:17px;
    margin-top: 6px;
    text-decoration: none;
}

.publicity{
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 40px;
}
.publicity-title{
    font-size: 18px;
    margin-bottom: 20px;
}
.publicity-href{
    font-size: 13px;
}

/* 下载引导 */
.download {
    display: flex;
    justify-content: center;
    align-items: center;
}
.download .mobile {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 90px 15px;
    padding: 8px 30px;
    border-radius: 30px;
    border: 1px solid rgba(50,50,50,1);
    position: relative;
}
.download .mobile .apple_img {
    width: 22px;
    height: 25px;
    background-image: url('./images/Apple_black@2x.png');
    background-size: 100%;
}
.download .mobile .android_img {
    width: 22px;
    height: 25px;
    background-image: url('./images/Android_black.svg');
    background-size: 100%;
}
.download .mobile .qsan {
    position: absolute;
    bottom: 50px;
    left: 0;
    width: 150px;
    display: none;
}
.download .mobile .text {
    margin-left: 10px;
}
.download .apple:hover,
.download .android:hover {
    background: #000;
    color: #fff;
}
.download .apple:hover .apple_img{
    background-image: url('./images/Apple_white@2x.png');
}
.download .android:hover .android_img{
    background-image: url('./images/Android_white@2x.png');
}
.download .apple:hover .qsan,
.download .android:hover .qsan {
    display: block;
}


/* 动画引导 */
@keyframes myfirst {
    0% {
        transform: translate(0px, 0px);
    }
    50% {
        transform: translate(0px, -10px);
    }
    100% {
        transform: translate(0px, 0px);
    }
}

@keyframes myend{
    0% {
        transform: translate(0px, 0px);
    }
    50% {
        transform: translate(0px, 10px);
    }
    100% {
        transform: translate(0px, 0px);
    }
}

@keyframes mymove {
    0% {
        transform: translate(0px, 40px);
    }
    50% {
        transform: translate(0px, 0px);
    }
    100% {
        transform: translate(0px, 40px);
    }
}

@keyframes heartBeat {
    0% {
        transform: scale(1);
    }

    14% {
        transform: scale(1.3);
    }

    28% {
        transform: scale(1);
    }

    42% {
        transform: scale(1.3);
    }

    70% {
        transform: scale(1);
    }
}

@keyframes show {
    0% {
        opacity: 0;
    }
    25% {
        opacity: 0.25;
    }
    50% {
        opacity: 0.5;
    }
    75% {
        opacity: 0.75;
    }
    100% {
        opacity: 1;
    }
}