html,body,.main,.top-nav{
    width: 100%;
    height: 100%;
}
html,body,*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}
ul{
    list-style: none;
}
a{
    text-decoration: none;
    color: #333;
    display: inline-block;
    padding: 15px 0;
}
a, a:hover, a:focus{
    -webkit-transition: all 0.3s ease;
    -moz-transition: all 0.3s ease;
    -ms-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    transition: all 0.3s ease;
}
a:hover:not(.fixed-link){
    padding-top: 0;
}
a.fixed-link{
    padding: 0;
}
a.active, a:hover{
    color: #FF437E;
}
.top-nav{
    display: flex;
    justify-content: space-between;
    box-shadow: 0px 0px 7px 1px rgba(0, 0, 0, 0.29);
    background-color: white;
    align-items: center;
}
.top-nav ul{
    display: flex;
    justify-content: flex-end;
    align-items: center;
}
.top-nav ul li{
    margin: 0 15px;
}

.top-nav{
    padding: 0 40px;
    font-size: 22px;
    height: 95px;
    line-height: 95px;
    z-index: 1;
}

.top-nav, .top-bg{
    position: fixed;
    left: 0;
    top: 0;
}

.top-nav img{
    height: 80%;
    vertical-align: middle;
}

.top-bg{
    top:95px;
    z-index: -1;
    width: 100vw;
}

.top-bg img{
    width: 100%;
    box-sizing: border-box;
}
.main{
    width: 100%;
    top: 600px;
    background-color: white;
    position: relative;
    height: auto;
    font-size: 18px;
    padding-top: 30px;
    text-align: center;
}

.main:before{
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    margin: auto;
    top: -1.9vw;
    width: 0;
    height: 0;
    border: 0 solid transparent;
    border-bottom-color: white;
    border-width: 2vw calc(100vw / 2 - 10px);
    border-top-width: 0;
    box-sizing: border-box;
}
.main .text-block{
    width: 80%;
    margin: 10px auto;
    text-align: left;
}
.main h2, .main h3{
    color: #FF9900;
    font-size: 40px;
    letter-spacing: 1px;
    margin: 30px auto;
}

.main h3{
    font-size: 30px;
}

.main hr{
    width: 80%;
    margin: 80px auto;
}
.main p{
    margin: 30px auto;
}
.bottom-nav{
    background-color: #1D2327;
    font-size: 16px;
    height: 150px;
    line-height: 150px;
    overflow: hidden;
}

.bottom-nav ul{
    display: flex;
    justify-content: center;
    align-items: center;
}

.bottom-nav ul li{
    width: 20%;
    text-align: center;
}

.bottom-nav a{
    color: white;
}

.bottom-nav a:hover{
    color: #cc0033;
}

.main .text-img{
    display: flex;
    justify-content: space-around;
    align-items: flex-start;
    text-align: left;
}

.text-img img{
    width: 300px;
    border-radius: 50px 50px 50px 50px;
    margin-top: 30px;
}

.text-item{
    margin-left: 40px;
}

.box-title{
    background-color: transparent;
    background-image: radial-gradient(at top left, #10B1E3 0%, #001F4E 100%);
    padding: 20px 0px 15px 30px;
    color: white;
    margin-bottom: 80px;
}

.goto-top{
    position: fixed;
    right: 20px;
    bottom: 20vh;
    width: 40px;
    height: 40px;
    line-height: 40px;
    background-color: rgba(0,0,0,0.4);
    font-size: 18px;
    cursor: pointer;
    text-align: center;
}

.goto-top a{
    color: #fff;
}

.scroll-block{
    width: 100%;
    margin: 30px auto;
}

.scroll-block img {
    width: 15vw;
}

.show-num{
    list-style: decimal;
}

.show-dot{
    list-style: disc;
}

.main li{
    margin: 15px;
}