.white-nav .head .nav li .SEMSystem{
    border-bottom: 2px solid #fff;
}
.black-nav .head .nav li .SEMSystem{
    border-bottom: 2px solid #111;
}
#page1{
    background-image: url("/images/bg/5_SEMSystem_1.jpg");
    background-position-x: right;
}

#page2{
    background-image: url("/images/bg/5_SEMSystem_2.jpg");
    background-position-y: bottom;
}
#page3{
    /*background-image: url("/images/bg/5_SEMSystem_2.jpg");*/
}
#page4{
    background-image: url("/images/bg/5_SEMSystem_4.jpg");
}
#page1 .text{
    position: absolute;
    top: calc(calc(var(--real-vh, 1vh) * 100) * 250 / 1080);
    right: calc(100vw * 200 / 1920);
    letter-spacing: 1.5px;
}
#page1 .text .company{
    font-size: calc(calc(var(--real-vh, 1vh) * 100) * 50 / 1080);
    font-family: Microsoft YaHei;
    font-weight: 400;
    line-height: 1;
    color: #fff;
    margin-bottom: calc(calc(var(--real-vh, 1vh) * 100) * 28 / 1080);
}
#page1 .text .company>span{
    float: left;
}
#page1 .text .sm{
    font-size: calc(calc(var(--real-vh, 1vh) * 100) * 28 / 1080);
    font-family: Microsoft YaHei;
    font-weight: 300;
    line-height: 1;
    color: #fff;
    margin-bottom: calc(calc(var(--real-vh, 1vh) * 100) * 125 / 1080);
}
#page1 .text .sm2{
    font-size: calc(calc(var(--real-vh, 1vh) * 100) * 30 / 1080);
    font-family: Microsoft YaHei;
    font-weight: 300;
    line-height: 1;
    color: #fff;
    margin-bottom: calc(calc(var(--real-vh, 1vh) * 100) * 20 / 1080);
}
#page1 .text .sm2 span{
    font-size: calc(calc(var(--real-vh, 1vh) * 100) * 50 / 1080);
    font-family: Microsoft YaHei;
    font-weight: 400;
    color: #04FCFE;
}
#page1 .text .go-more{
    float: left;
    width: calc(calc(var(--real-vh, 1vh) * 100) * 150 / 1080);
    /*min-width: 164px;*/
    height: calc(calc(var(--real-vh, 1vh) * 100) * 52 / 1080);
    background: linear-gradient(90deg, #3A87CD, #75BDFF);;
    border-radius: calc(calc(var(--real-vh, 1vh) * 100) * 25 / 1080);
    margin-left: calc(100vw * 20 / 1980);
    display: flex;
    justify-content: center;
    align-items: center;
    vertical-align: middle;
    cursor: pointer;
}
#page1 .text .go-more span{
    font-size: calc(calc(var(--real-vh, 1vh) * 100) * 20 / 1080);
    color: #fff;
    margin-right: calc(calc(var(--real-vh, 1vh) * 100) * 21 / 1080);
}
#page1 .text .go-more img{
    display: inline-block;
    width: calc(calc(var(--real-vh, 1vh) * 100) * 37 / 1080);
    height: calc(calc(var(--real-vh, 1vh) * 100) * 37 / 1080);
}

#page2 .text{
    position: absolute;
    top: calc(calc(var(--real-vh, 1vh) * 100) * 220 / 1080);
    left: calc(100vw * 300 / 1920);
}
#page2 .text .company{
    font-size: calc(calc(var(--real-vh, 1vh) * 100) * 40 / 1080);
    font-family: Microsoft YaHei;
    font-weight: 400;
    line-height: 1;
    color: #111;
    margin-bottom: calc(calc(var(--real-vh, 1vh) * 100) * 21 / 1080);
}
#page2 .text .sm{
    font-size: calc(calc(var(--real-vh, 1vh) * 100) * 28 / 1080);
    font-family: Microsoft YaHei;
    font-weight: 400;
    line-height: 1;
    color: #111;
    margin-bottom: calc(calc(var(--real-vh, 1vh) * 100) * 37 / 1080);
}

#page2 .text img{
    height: calc(calc(var(--real-vh, 1vh) * 100) * 587 / 1080);
}

#page3 .text{
    position: absolute;
    width: min(calc(calc(var(--real-vh, 1vh) * 100) * 620 * 2.4387 / 1080),calc(100vw * 620 * 2.4387 / 1920));
    top: calc(calc(var(--real-vh, 1vh) * 100) * 201 / 1080);
    left: 50%;
    transform: translateX(-50%);
}
#page3 .text .company{
    font-size: min(calc(calc(var(--real-vh, 1vh) * 100) * 50 / 1080),calc(100vw * 50 / 1920));
    font-weight: 400;
    /*font-size: clamp(25px, 3vw, 60px);*/
    line-height: 1;
    margin-bottom: min(calc(calc(var(--real-vh, 1vh) * 100) * 100 / 1080),calc(100vw * 100 / 1920));
    color: #111;
}

#page3 .text .go-more{
    width: calc(calc(var(--real-vh, 1vh) * 100) * 250 / 1080);
    /*min-width: 164px;*/
    height: calc(calc(var(--real-vh, 1vh) * 100) * 51 / 1080);
    background: linear-gradient(90deg, #3A87CD, #75BDFF);
    border-radius: calc(calc(var(--real-vh, 1vh) * 100) * 25 / 1080);
    margin-left: calc(100vw * 68 / 1980);
    display: flex;
    justify-content: center;
    align-items: center;
    vertical-align: middle;
    cursor: pointer;
    float: right;
}
#page3 .text .go-more span{
    font-size: calc(calc(var(--real-vh, 1vh) * 100) * 14 / 1080);
    color: #fff;
    margin-right: calc(calc(var(--real-vh, 1vh) * 100) * 12 / 1080);
}
#page3 .text .go-more img{
    display: inline-block;
    width: calc(calc(var(--real-vh, 1vh) * 100) * 28 / 1080);
    height: calc(calc(var(--real-vh, 1vh) * 100) * 28 / 1080);
}
#page3 .text>img{
    max-height: min(calc(calc(var(--real-vh, 1vh) * 100) * 620 / 1080),calc(100vw * 620 / 1920));
    max-width: 100%;
}

#page4 .text{
    position: absolute;
    top: calc(calc(var(--real-vh, 1vh) * 100) * 248 / 1080);
    left: calc(100vw * 200 / 1920);
}
#page4 .text .company{
    font-size: calc(calc(var(--real-vh, 1vh) * 100) * 50 / 1080);
    /*font-size: clamp(25px, 3vw, 60px);*/
    font-weight: 400;
    line-height: 1;
    /*margin-bottom: calc(calc(var(--real-vh, 1vh) * 100) * 28 / 1080);*/
    color: #111;
    float: left;
    margin-right: calc(100vw * 50 / 1920);
}

#page4 .text .go-more{
    width: calc(calc(var(--real-vh, 1vh) * 100) * 200 / 1080);
    /*min-width: 164px;*/
    height: calc(calc(var(--real-vh, 1vh) * 100) * 52 / 1080);
    background: #fff;
    border-radius: calc(calc(var(--real-vh, 1vh) * 100) * 26 / 1080);
    display: flex;
    justify-content: center;
    align-items: center;
    vertical-align: middle;
    cursor: pointer;
}
#page4 .text .go-more span{
    font-size: calc(calc(var(--real-vh, 1vh) * 100) * 20 / 1080);
    color: #111111;
    margin-right: calc(calc(var(--real-vh, 1vh) * 100) * 22 / 1080);
}
#page4 .text .go-more img{
    display: inline-block;
    width: calc(calc(var(--real-vh, 1vh) * 100) * 36 / 1080);
    height: calc(calc(var(--real-vh, 1vh) * 100) * 36 / 1080);
}