*{
    margin: 0 auto;
}

#app{
    margin: 0 auto;
    background-color: #121212;
}

#video_part{
    width: 100%;
    height: 800px;
    background-image: url("../img/视频占位图.webp");
    background-repeat: no-repeat;
    background-size: auto 100%;
}

.first_video{
    position: absolute;
    top: 85px;
    width: 100%;
    height: 600px;
    display: none;
}

.video_title{
    text-align: center;
    padding-top: 200px;
    width: fit-content;
    height: 50px;
    font-size: 38px;
    font-weight: bold;
    color: #FFFFFF;
    line-height: 50px;
}

#intro_font{
    background: url("../img/介绍背景1.png") no-repeat 0 / 100% 550px;
    width: 100%;
    height: 550px;
    font-size: 30px;
    font-weight: 300;
    color: #CCCCCC;
    line-height: 50px;
}

#title{
    padding-top: 80px;
    text-align: center;
    width: fit-content;
    font-size: 36px;
    font-weight: 400;
}

#info{
    font-size: 26px;
    padding-top: 40px;
    width: 70%;
}

#product_part{
    width: 100%;
    height: fit-content;
}

.product_all{
    width: 100%;
    height: 700px;
    background: url("../img/7.png") no-repeat 50% 100% / 80% auto;
}

.product_camera{
    padding-top: 200px;
    width: fit-content;
    height: 160px;
    font-size: 28px;
    font-weight: 300;
    color: #CCCCCC;
    line-height: 45px;
    margin-left: 4%;
    position: relative;
    top: 110px;
}

#camera{
    position: relative;
    bottom: 100px;
}

.product_camera p{
    position: relative;
    bottom: 5px;
    left: 50px;
}

.product_pad{
    /*text-align: center;*/
    width: fit-content;
    height: 160px;
    font-size: 28px;
    font-weight: 300;
    color: #CCCCCC;
    line-height: 40px;
    position: relative;
    bottom: 250px;
    margin-left: 39%;
}

#pad{
    position: relative;
    bottom: 130px;
    right: 30px;
}

.product_phone{
    width: fit-content;
    height: 160px;
    font-size: 28px;
    font-weight: 300;
    color: #CCCCCC;
    line-height: 40px;
    position: relative;
    bottom: 280px;
    margin-left: 70%;
}

#phone_line{
    position: relative;
    left: 18%;
}

#phone{
    position: relative;
    bottom: 165px;
    right: 30px;
}

.product_watch{
    width: 220px;
    height: 160px;
    font-size: 28px;
    font-weight: 300;
    color: #CCCCCC;
    line-height: 40px;
    position: relative;
    bottom: 500px;
    margin-left: 73%;
}

#watch{
    position: relative;
    bottom: 130px;
    right: 30px;
}

.product_details{
    width: 100%;
    height: 1300px;
    background-image: url("../img/背景.webp");
    background-repeat: no-repeat;
    background-size: 100% 100%;
}

.product_details:nth-of-type(3){
    background-image: url("../img/6.png");
    background-size: 90% auto;
    background-position: 50% 100%;
}

.product_details:nth-of-type(4){
    background-image: url("../img/2345.webp");
    background-size: 100% auto;
    height: 800px;
}

.product_title{
    text-align: center;
    padding-top: 110px;
    width: fit-content;
    height: 70px;
    font-size: 42px;
    font-weight: bold;
    color: #FFFFFF;
    line-height: 70px;
}

.infoP{
    font-size: 28px;
    font-weight: 300;
    margin-left: 100px;
    line-height: 60px;
    color: #e6e6e6;
}

.infoP:nth-of-type(1){
    margin-top: 30px;
}

.product_info p{
    width: fit-content;
    height: 60px;
    font-size: 38px;
    font-weight: 500;
    color: #FFFFFF;
    line-height: 40px;
    margin: 120px auto 10px 10%;
}

#need_gap{
    margin-bottom: 20px;
}

.product_info li{
    width: 80%;
    height: 80px;
    font-size: 28px;
    font-weight: 300;
    color: #E6E6E6;
    line-height: 40px;
}

.product_font{
    margin-top: 10px;
    width: 80%;
    height: fit-content;
    font-size: 28px;
    font-weight: 300;
    color: #E6E6E6;
    line-height: 50px;
}

.one{
    margin-left: 90px;
    padding-top: 0;
}

#core_function{
    padding-top: 300px;
    width: fit-content;
    height: fit-content;
}

#core_function p{
    text-align: left;
}

.proTi{
    font-size: 32px;
    font-weight: 500;
    margin-bottom: 20px;
}

.proTi:nth-of-type(3){
    margin-top: 20px;
}

.product_font:nth-of-type(2){
    /*text-indent: 2em;*/
    text-align: center;
    margin-top: 50px;
}

.details_font{
    width: 240px;
    height: 40px;
    font-size: 28px;
    font-weight: 300;
    color: #D9D9D9;
    line-height: 40px;
    margin-top: 40px;
    margin-right: 12%;
    position: relative;
    top: 250px;
}

#function_part{
    width: 100%;
    height: 800px;
    color: #E6E6E6;
    font-size: 26px;
    background-image: url("../img/1234.webp");
    background-repeat: no-repeat;
    background-size: 100% auto;
}

#function_part p{
    padding-top: 200px;
    width: 70%;
}