* {
    margin: 0;
    padding: 0;
}

a {
    color: #333;
    text-decoration: none;
    outline: none;
}

table {
    border-collapse: collapse;
    border-spacing: 0;
}

fieldset,
img {
    border: 0;
}

html {
    font-size: 12px;
    font-family: "微软雅黑";
}

h1,
h2,
h3,
h4,
h5,
h6 {
    margin: 0;
    padding: 0;
}

ul,
li,
dl,
dd,
dt,
p {
    margin: 0px;
    padding: 0px;
}

ul,
li {
    list-style-type: none;
}

em,
i {
    font-style: normal;
}

html,
body {
    height: 100%;
    background-color: #4f4f4f;
}

.pc {
    display: flex;
    justify-content: center;
    
    
}

@media screen and (min-width: 751px) {

  

    .pc {
        height: 100%;
        background: url(../img/bg-new.jpg) no-repeat top center;
        background-size: cover;
    }
    .pc .w1200 {
        width:700px;
        
    }
    .pc .logo {
        background: url(../img/logo.png) no-repeat bottom center;
        background-size: 100%;
        width: 400px;
        height: 140px;
        margin: 0 auto;
        padding-top: 40px;
        margin-bottom: 60px;
    }
    .pc .btnlist {
        display: flex;
        flex-direction: column;
        width: 300px;
        margin: 0 auto;
    }
    .pc .btnlist a {
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 24px;
        background: url(../img/btnbj.png) no-repeat top center;
        background-size: 100%;
        width: 100%;
        height: 55px;
        line-height: 55px;
        text-align: center;
        margin-bottom: 30px;
        position: relative;
    }
    .pc .btnlist a span {
        display: block;
        width: 35px;
        height: 35px;
        background-color: #333;
    }
    .pc .btnlist a i {
        display: block;
        position: absolute;
        width: 35px;
        height: 55px;
        background: url(../img/andor.png) no-repeat top center;
        background-size: 100%;
        top: -5px;
        right: 20px;
    }
    .pc .btnlist a .icon1 {
        background: url(../img/icon1.png) no-repeat top center;
        background-size: 100%;
        width: 36px;
    }
    .pc .btnlist a .icon2 {
        background: url(../img/icon-2.png) no-repeat top center;
        background-size: 100%;
    }
    .pc .btnlist a .icon3 {
        background: url(../img/icon-3.png) no-repeat top center;
        background-size: 100%;
    }
    .pc .btnlist a .icon4 {
        background: url(../img/icon5.png) no-repeat top center;
        background-size: 100%;
    }
    .pc .btnlist a .icon5 {
        background: url(../img/icon4.png) no-repeat top center;
        background-size: 100%;
        width: 38px;
    }
    .pc .bot {
        font-size: 30px;
        background: url(../img/bot.png) no-repeat center;
        background-size: 100%;
        width: 600px;
        height: 40px;
        margin: 0 auto;
        text-align: center;
        color: #ffec9f;
    }
    .pc .bot span {
        color: #f55428;
    }
}

@media screen and (max-width: 750px) {
    .pc {
        background: url(../img/mobile-bg.png) no-repeat top center;
        background-size: cover;
        height: 100vh;
    }
    .pc .logo {
        background: url(../img/logo.png) no-repeat bottom center;
        background-size: 100%;
        width: 5.5rem;
        height: 2rem;
        margin: 0 auto;
        padding-top: 0.8rem;
        margin-bottom: 1rem;
    }
    .pc .btnlist {
        display: flex;
        flex-direction: column;
        width: 4.5rem;
        margin: 0 auto;
    }
    .pc .btnlist a {
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 0.45rem;
        background: url(../img/btnbj.png) no-repeat top center;
        background-size: 100%;
        width: 100%;
        height: 0.8rem;
        line-height: 0.8rem;
        text-align: center;
        margin-bottom: 0.5rem;
        position: relative;
    }
    .pc .btnlist a span {
        display: block;
        width: 0.55rem;
        height: 0.55rem;
        background-color: #333;
    }
    .pc .btnlist a i {
        display: block;
        position: absolute;
        width: 0.55rem;
        height: 1rem;
        background: url(../img/andor.png) no-repeat top center;
        background-size: 100%;
        top: -0.1rem;
        right: 0.2rem;
    }
    .pc .btnlist a .icon1 {
        background: url(../img/icon1.png) no-repeat top center;
        background-size: 100%;
    }
    .pc .btnlist a .icon2 {
        background: url(../img/icon-2.png) no-repeat top center;
        background-size: 100%;
    }
    .pc .btnlist a .icon3 {
        background: url(../img/icon-3.png) no-repeat top center;
        background-size: 100%;
    }
    .pc .btnlist a .icon4 {
        background: url(../img/icon5.png) no-repeat top center;
        background-size: 100%;
    }
    .pc .btnlist a .icon5 {
        background: url(../img/icon4.png) no-repeat top center;
        background-size: 100%;
        width: 0.65rem;
    }
    .pc .bot {
        font-size: 0.45rem;
        background: url(../img/bot.png) no-repeat center;
        background-size: 100%;
        width: 90%;
        margin: 0 auto;
        margin-top: 0.8rem;
        text-align: center;
        color: #ffec9f;
    }
    .pc .bot span {
        color: #f55428;
    }
}

@media screen and (width: 414px) {
    .logo {
        padding-top: 0.5rem !important;
        margin-bottom: 0.5rem !important;
    }
    .bot {
        margin-top: 0 !important;
    }
}