body,
html {
    width: 100%;
    height: 100%;
    position: fixed;
    padding: 0;
    margin: 0;
    min-height: 100vh;
    color: #000;
    font-family: Quicksand, sans-serif;
    font-style: normal;
    font-size: 62.5%;
    background: url(./bg.png) no-repeat;
    background-size: cover;
}

a:link,
a:visited,
a:active {
    text-decoration: none;
}

.pjililogo {
    display: none;
}

.jili {
    width: 1200px;
    height: 100%;
    overflow-y: auto;
    margin-left: calc(50% - 600px);
    position: absolute;

}

.ptop {
    width: 100%;
    overflow: hidden;
    background: url(./topbg.png) no-repeat;
    background-size: cover;
}

.ptitem {
    width: 12.5%;
    float: left;
    text-align: center;
}

.iconfont {
    transition: all 1s
}

.iconfont img {
    width: 90px;
}

/* 榧犳爣鎸囦笂鍘籭con鏃嬭浆 */
.ptop .ptitem:hover .iconfont {
    transform: rotateY(360deg)
}

.ptit {
    font-size: 24px;
    color: white;
    font-weight: bold;
}

.ptlogo {
    width: 25%;
    float: left;
}

.sub {
    width: 100%;
    text-align: center;
    clear: both;
    font-size: 50px;
    color: white;
    text-transform: uppercase;
    margin-top: 3px;
}

.mv {
    width: 43%;
    margin-left: 30%;
}

.bottom {
    position: absolute;
    bottom: 0;
    margin-left: 87.5px;
}

.qiu {
    width: 55px;
    margin-left: 62.5px;
    transition: all 0.5s;
}

.bitems {
    float: left;
    overflow: hidden;
}

.bitem {
    width: 150px;
    height: 150px;
    margin-top: -35px;
    margin-left: 10px;
    background: linear-gradient(to bottom, #1d5cd9, #083ea8);
    border: 5px solid #577cc2;
    border-top-left-radius: 30px;
    border-top-right-radius: 30px;
    text-align: center;
}

.bitt {
    font-size: 14px;
    color: white;
    font-weight: bold;
    text-align: center;
    margin-top: 50px;
}

.bitbtn {
    position: absolute;
    width: 80px;
    height: 40px;
    color: white;
    background: #fac852;
    margin-left: 35px;
    font-size: 18px;
    font-weight: bold;
    margin-top: 30px;
    line-height: 40px;
    border-radius: 10px;
    cursor: pointer;
    transition: all .5s
}

.bitems .bitem:hover .bitbtn {
    padding-right: 20px;
    margin-left: 25px;
}

/* 榧犳爣鎸囦笂鍘诲嚭鐜 >> */
.bitem .bitbtn::after {
    content: '>>';
    position: absolute;
    opacity: 0;
    transition: all .5s
}

.bitems .bitem:hover .bitbtn::after {
    opacity: 1;
    right: 5px
}

/* 榧犳爣鎸囦笂鍘婚瀛愯浆 */
.bitems:hover .qiu {
    transform: rotateY(360deg)
}


@media (max-width:1200px) {
    .jili {
        width: 800px;
        margin-left: calc(50% - 400px);
    }

    .iconfont img {
        width: 50px;
    }

    .ptit {
        font-size: 20px;
        color: white;
        font-weight: bold;
    }

    .sub {
        font-size: 40px;
        margin-top: 26px;
    }

    .bottom {
        margin-left: 35px;
    }

    .bitem {
        width: 100px;
        margin-top: -25px;
    }

    .qiu {
        width: 40px;
        margin-left: 45px;
    }

    .bitbtn {
        width: 60px;
        height: 30px;
        line-height: 30px;
        margin-left: 20px;
        font-size: 12px;
    }

    .bitems .bitem:hover .bitbtn {
        padding-right: 10px;
        margin-left: 15px;
    }
}

@media (max-width:900px) {
    .jili {
        width: 100%;
        margin: 0;
    }

    .pjililogo {
        display: block;
        width: 60%;
        margin-left: 20%;
        margin-top: 50px;
    }

    .ptop {
        width: 100%;
        margin-left: 0;
        background: none;
        padding: 10px 0px 30px;
        overflow: hidden;
    }

    .ptitem {
        width: 100px;
        height: 100px;
        margin-left: calc(16.66% - 50px);
        margin-right: calc(16.66% - 50px);
        margin-top: 30px;
        border-radius: 50%;
        background: #1794de;
        box-shadow: rgb(0 0 0 / 17%) 0 -23px 25px 0 inset, rgb(0 0 0 / 15%) 0 -36px 30px 0 inset, rgb(0 0 0 / 10%) 0 -79px 40px 0 inset, rgb(0 0 0 / 6%) 0 2px 1px, rgb(0 0 0 / 9%) 0 4px 2px, rgb(0 0 0 / 9%) 0 8px 4px, rgb(0 0 0 / 9%) 0 16px 8px, rgb(0 0 0 / 9%) 0 32px 16px;
    }

    .ptlogo {
        width: 0;
    }

    .iconfont img {
        width: 50px;
        margin-top: 10px;
    }

    .ptit {
        font-size: 14px;
        color: white;
        font-weight: bold;
    }

    .sub {
        width: 80%;
        margin-left: 10%;
        font-size: 24px;
        margin-top: 26px;
    }

    .mv {
        display: none;
    }

    .bottom {
        margin-left: 30px;
        margin-right: 30px;
        margin-top: 20px;
        padding-bottom: 30px;
        position: relative;
    }

    .bitems {
        width: 100%;
    }

    .qiu {
        width: 40px;
        margin-left: 15px;
        margin-top: 35px;
    }

    .bitem {
        width: calc(100% - 20px);
        height: 70px;
        margin-left: 0;
        margin-right: 0;
        margin-top: -60px;
        border-radius: 20px;
        overflow: hidden;
    }

    .bitt {
        width: auto;
        float: left;
        position: relative;
        margin-top: 25px;
        margin-left: 60px;
        font-size: 14px;
    }

    .bitbtn {
        width: 60px;
        height: 30px;
        line-height: 30px;
        font-size: 12px;
        float: right;
        position: relative;
        margin-top: 20px;
        margin-right: 10px;
    }

}