@font-face {
    font-family: 'youshebiaotihei';
    src: url('fonticon/youshebiaotihei.ttf') format('truetype');
}
@font-face {
    font-family: 'alimamafangyuanti';
    src: url('fonticon/alimamafangyuanti.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}
.img_top {
    /* background: url(../images/PC_logo2024.png); */
    width: 44rem;
    margin: 0 auto -0.8rem;
    display: block;
    /* background-size: cover; */
}
.top {
    width: 100%;
    height: 100%;
    /* min-height: 56vh; */
    /* background: url(../images/bj1.jpg) center center no-repeat;
    background-size: auto 100%; */
    /* object-fit: cover; // 这个用img.... */
    position: relative;
    top:0;
    left: 0;
    /* top: 50%;
    left: 50%;
    transform: translate(-55%, -5%); */
    /* margin-bottom: -5rem; */
    /* padding-top: 60rem; */
    /* padding-top: calc(100vh * 0.05); */
    /* padding-top: calc(var(--fontSize) * 4); */
    overflow: hidden;
}
.top>img {
    width: 120%;
    height: 100vh;
    /* object-fit: cover; */
    position: fixed;
    left: 50%;
    top: 0;
    transform: translate(-50%, 0px);
    z-index: 1;
}
.con_over {
    width: 100%;
    height: 100%;
    overflow-y: auto;
    overflow-x: hidden;
    position: relative;
}
.con_center {
    /* overflow: hidden; */
    width: max-content;
    max-width: 100%;
    color: #fff;
    text-align: center;
    /* padding: 15rem 5rem 5rem; */
    position: absolute;
    height: fit-content;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -55%);
    z-index: 3;
    margin: 0 auto;
}
.tit_top {
    /* font-size: 4.5rem; */
    font-size: calc(var(--fontSize) * 0.8);
    font-family: 'youshebiaotihei';
    font-weight: 400;
    /* font-style: italic; */
    text-shadow: 3px 6px 6px #000000;
}
.txt_top {
    /* font-size: 2rem; */
    font-size: calc(var(--fontSize) * 0.42);
    font-family: 'youshebiaotihei';
    font-weight: 400;
    /* font-style: italic; */
    text-shadow: 3px 6px 6px #000000;
    margin: -0.8rem 0 1rem;
}
.back_top {
    width: 100%;
    height: 3rem;
    max-width: 43rem;
    background-color: #fff;
    color: #111;
    margin: 0 auto;
    padding: 1rem 4rem;
    /* padding: calc(0.3rem(var(--fontSize)* 0.9) 0.5rem); */
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    align-items: center;
    font-family: 'alimamafangyuanti';
    /* font-weight: 600; */
}
.back_top div:nth-child(1) {
    /* font-size: 3rem; */
    font-size: calc(var(--fontSize) * 0.6);
    /* font-weight: bold; */
    color: #2f9589;
    letter-spacing: calc(var(--fontSize) * 0.2);
}
.back_top div:nth-child(2) {
    /* font-size: 4rem; */
    font-size: calc(var(--fontSize) * 0.8);
    font-weight: 600;
    color: #ff0000;
    letter-spacing: 1rem;
}
.back_top div:nth-child(3) {
    color: #2f9589;
    letter-spacing: 0.1rem;
    line-height: 0.2rem;
    font-weight: 600;
    font-size: calc(var(--fontSize) * 0.225);
    /* font-size: 1.2rem; */
}
.back_top div:nth-child(3) p:nth-child(1) {
    letter-spacing: 0.3rem;
}
.type_top {
    display: flex;
    margin: 1.3rem auto;
    max-width:  calc(var(--widthTop)*0.508);
    width: 100%;
    justify-content: space-between;
    text-shadow: 2px 2px 3px #000000bf;
    /* font-size: 1.2rem; */
    font-size: calc(var(--fontSize) * 0.24);
    letter-spacing: 0.1rem;
}
.type_top div div:nth-child(2) {
    font-weight: 300;
    /* font-size: 1rem; */
    font-size: calc(var(--fontSize) * 0.2);
}
.type_tops {
    height: calc(var(--fontSize) * 0.4);
    border-right: calc(var(--fontSize) * 0.04) solid #21f8ff;
    /* padding-right: calc(var(--fontSize) * 0.1); */
    margin-top: calc(var(--fontSize) * 0.2);
}
.btn_top {
    text-shadow: 3px 3px 3px #000000;
    /* font-size: 1.2rem; */
    font-size: calc(var(--fontSize1) * 0.3);
    letter-spacing: 0.1rem;
    font-weight: 500;
    margin-bottom: -0.7rem;
}
.list {
    width: fit-content;
    margin: 0rem auto 0;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
}
.list>div {
    width: calc(22vw - 1rem);
    /* background-color: #fff; */
    margin: 0.5rem;
    float: left;
    border-radius: 0.5rem;
    padding: 0.5rem;
}
.list .list_btn {
    /* width: 7rem; */
    width: fit-content;
    border-radius: 1rem;
    background-color: #f85207;
    margin: 0 auto 0.5rem;
    color: #fff;
    /* font-size: 0.8rem; */
    font-size: calc(var(--fontSize1) * 0.16);
    padding: 0.3rem 1rem 0.3rem;
    box-shadow: 0px 2px 0px 2px #f8520785;
}
.list .list_btn::after {
    /* content: "▶"; */
    /* content: url(../images/right.png); */
    content: '';
    margin-left: 0.4rem;
    background: url(../images/right.png);
    display: block;
    width: 1rem;
    height: 1rem;
    background-size: cover;
    float: right;
    margin-top: -0.1rem;
}
.list a {
    text-decoration: none;
    color: #7f7f7f;;
    /* font-size: 1.3rem; */
    font-size: calc(var(--fontSize1) * 0.26);
    font-weight: 600;
}
.list img {
    width: 100%;
    height: 100%;
}
.list p {
    margin: -0.2rem 0 0.5rem;
    font-weight: 600;
    letter-spacing: calc(var(--fontSize1) * 0.02);
}
body {
    overflow: hidden;
    height: 100vh;
    width: 100vw;
    background-color: #2f9589;
    padding: 0;
    margin: 0;
    font-family: 'alimamafangyuanti';
    /* font-family: 'youshebiaotihei'; */
}
/* 当屏幕宽高比大于 1:1（即屏幕是长方形或更高比）时 横屏*/
/* @media screen and (min-aspect-ratio: 1/1.2) { */
@media screen and (min-width: 45rem) {
    :root {
        --fontSize: 8rem;
        --fontSize1: 5rem;
        /* --widthTop: 22.8rem; */
        --widthTop: 100rem;
    }
    .PC {
        display: block;
    }
    .MV {
        display: none;
    } 
    /* .btn_top {
        font-weight: 600;
    } */
    .list p {
        margin: -0.2rem 0 0.5rem;
        font-weight: 900 !important;
        font-size: 1.7rem;
        letter-spacing: calc(var(--fontSize1)* 0.02);
        font-family: sans-serif;
    }
    @media screen and (max-height: 600px) {
        .con_center {
            position: relative;
            top: 0;
            transform: translate(-50%, 0%);
            padding: 10rem 5rem 5rem;
        }
    }  
}
/* 当屏幕宽高比小于或等于 1:1（即屏幕是正方形或更宽比）时 竖屏*/
/* @media screen and (max-aspect-ratio: 1/1.2) { */
@media screen and (max-width: 45rem) {
    :root {
      --fontSize: 2.8rem;
      --fontSize1: 4rem;
      --widthTop: 55rem;
    }
    .top>img {
        width: 145%;
    }
    .back_top {
        max-width: 16.3rem !important;
        padding: 0.3rem 0.5rem 0.5rem !important;
    }
    .txt_top {
        margin: -0.1rem 0 1rem;
    }
    .list {
        display: grid;
        margin: 0.7rem auto 0;
    }
    .list>div {
        width: 13rem;
        margin: 0;
        padding: 0.3rem;
        /* box-shadow: 0px 0px 4px 1px #fff; */
    }
    /* .top {
        padding-top: calc(100vh / 4);
    } */
    /* body {
        overflow-y: auto !important;
    } */
    /* .con_center {
        overflow-y: auto !important;
    } */
    .list p {
        margin: -0.1rem 0 0.3rem;
    }
    /* .top>img {
        height: 120vh;
    } */
    .type_top {
        max-width: calc(var(--widthTop)* 0.328);
    }
    .back_top div:nth-child(3) {
        font-size: calc(var(--fontSize)* 0.325);
    }
    .con_center {
        width: auto;
        position: relative;
        top: 0;
        transform: translate(-50%, 0%);
        padding: 5rem 5rem 5rem;
        display: flex;
        align-content: center;
        flex-wrap: wrap;
        flex-direction: column;
    }
    .img_top {
        /* background: url(../images/MV_logo2024.png); */
        width: 20rem;
    }
    .btn_top {
        font-size: calc(var(--fontSize1)* 0.2);
    }
    .PC {
        display: none !important;
    }
    .MV {
        display: block;
    }
}