@charset "utf-8";

* {
    margin: 0;
    padding: 0;
    color: #000;
    font-size: 14px;
}

body {
}

img {
    display: block;
}

ul {
    list-style: none;
}

a {
    text-decoration: none;
    cursor: pointer;
}

.banner {
    width: 100%;
    height: auto;
    display: inline-block;
}

.banner img {
    width: 100%;
}

.return {
    position: fixed;
    bottom: 2%;
    width: 100%;
    text-align: center;
    margin: 0 auto;
    z-index: 99999999999999999999999999;
}

.return a {
    text-align: center;
    margin: 0 auto;
    color: #fff;
    background: #004180;
    padding: 15px 57px;
    display: inline-block;
    border-radius: 16px;
}
.about{
    width: 100%;
    height: auto;
    display: inline-block;
    margin-top: 5%;
}
.index{
    width: 70%;
    margin: 0 auto;
}
.ab-left{
    width: 42%;
    float: left;
}
.ab-left h3{
    color: #283138;
    font-size: 35px;
    letter-spacing: 2px;
}
.ab-left p{
    color: #525252;
    font-size: 17px;
    line-height: 35px;
    margin-top: 7%;
}
.ab-right{
    width: 50%;
    float: right;
}
.ab-right img{
    float: right;
}
.advantage{
    width: 100%;
    height: auto;
    background: url(../images/advantage.jpg);
    background-repeat: no-repeat;
    background-size: cover;
    display: inline-block;
    padding-bottom: 16%;
    margin-top: 7%;
    position: relative;
}
.advantage h3{
    color: #fff;
    font-size: 35px;
    letter-spacing: 2px;
    text-align: center;
    padding: 6%;
}
.advantage ul{
    width: 100%;
    height: auto;
    display: inline-block;
}
.advantage li{
    width: 33%;
    float: left;
}
.advantage li img{
    float: left;
    width: 7%;
}
.adv{
    float: left;
    width: 84%;
    margin-left: 5%;
}
.adv h4{
    color: #fff;
    font-size: 17px;
    letter-spacing: 1px;
}
.adv p{
    color: #fff;
    font-size: 14px;
    line-height: 27px;
    margin-top: 3%;
    width: 78%;
}
.adv-bottom{
    position: absolute;
    bottom: -19%;
}
.adv-bottom img{
    width: 100%;
    height: auto;
    display: inline-block;
}
.promise{
    width: 100%;
    height: auto;
    display: inline-block;
    margin-top: 13%;
    margin-bottom: 5%;
}
.promise h3{
    color: #80c0e3;
    font-size: 35px;
    letter-spacing: 2px;
    text-align: center;
    margin-bottom: 2%;
}
.promise p{
    color: #3b3b3b;
    text-align: center;
    font-size: 19px;
    letter-spacing: 1px;
    line-height: 34px;
}
.grade{
    width: 100%;
    height: auto;
    background: url(../images/grade.png);
    background-repeat: no-repeat;
    background-size: inherit;
    display: inline-block;
    padding-bottom: 12%;
    position: relative;
}
.grade h3{
    color: #80c0e3;
    font-size: 35px;
    letter-spacing: 2px;
    text-align: center;
    margin-bottom: 2%;
    padding-top: 5%;
}
.gra-box{
    width: 100%;
    height: auto;
    display: inline-block;
    margin-top: 3%;
    margin-bottom: 0%;
}
.frab-left{
    float: left;
    width: 45%;
}
.frab-left img{
    width: 100%;
}
.frab-right{
    float: left;
    width: 50%;
    margin-left: 5%;
}
.frab-right ul{
    width: 100%;
    height: auto;
    display: inline-block;
    margin-top: 13%;
}
.frab-right li{
    width: 100%;
    height: auto;
    display: inline-block;
    margin-bottom: 7%;
}
.frab-right li h4{
    color: #4cb2ff;
    font-size: 30px;
}
.frab-right li p{
    color: #283138;
    font-size: 16px;
    line-height: 39px;
}
.environment{
    width: 100%;
    height: auto;
    display: inline-block;
    margin-bottom: 0%;
}
.environment h3{
    color: #283138;
    font-size: 35px;
    letter-spacing: 2px;
    text-align: center;
    margin-bottom: 2%;
    padding-top: 5%;
}
.environment ul{
    width: 100%;
    height: auto;
    display: inline-block;
    margin-top: 3%;
}
.environment li{
    float: left;
    margin-right: 2%;
}
.footer{
    width: 100%;
    height: auto;
    background: url(../images/footer_12.png);
    background-repeat: no-repeat;
    background-size: inherit;
    display: inline-block;
    padding-bottom: 6%;
    position: relative;
    margin-top: 6%;
}
.f-box{
    width: 100%;
    margin: 0 auto;
    display: inline-block;
    text-align: center;
}
.f-box img{
    text-align: center;
    margin: 0 auto;
    width: 23%;
    margin-top: 6%;
}
@media screen and (max-width: 1024px) and (min-width: 0px) {
    .ab-left {
        width: 100%;
        float: left;
    }
    .index {
        width: 90%;
        margin: 0 auto;
    }
    .ab-left h3 {
        color: #283138;
        font-size: 26px;
        letter-spacing: 2px;
    }
    .ab-left p {
        color: #525252;
        font-size: 15px;
        line-height: 34px;
        margin-top: 0%;
    }
    .ab-right img {
        float: right;
        width: 100%;
    }
    .ab-right {
        width: 100%;
        float: right;
        margin-top: 5%;
    }
    .advantage {
        width: 100%;
        height: auto;
        background: url(../images/advantage.jpg);
        background-repeat: no-repeat;
        background-size: cover;
        display: inline-block;
        padding-bottom: 7%;
        margin-top: 7%;
        position: relative;
    }
    .advantage h3 {
        color: #fff;
        font-size: 26px;
        letter-spacing: 2px;
        text-align: center;
        padding: 6%;
    }

    .advantage li {
        width: 100%;
        float: left;
        margin-bottom: 5%;
    }
    .adv p {
        color: #fff;
        font-size: 13px;
        line-height: 27px;
        margin-top: 3%;
        width: 100%;
    }
    .adv-bottom {
        position: sticky;
        width: 100%;
    }
    .promise h3 {
        color: #80c0e3;
        font-size: 26px;
        letter-spacing: 2px;
        text-align: center;
        margin-bottom: 2%;
    }
    .promise {
        width: 100%;
        height: auto;
        display: inline-block;
        margin-top: 7%;
        margin-bottom: 5%;
    }
    .promise p {
        color: #3b3b3b;
        text-align: center;
        font-size: 14px;
        letter-spacing: 1px;
        line-height: 25px;
        width: 90%;
        margin: 0 auto;
    }
    .grade h3 {
        color: #80c0e3;
        font-size: 26px;
        letter-spacing: 2px;
        text-align: center;
        margin-bottom: 2%;
        padding-top: 5%;
    }
    .frab-left {
        float: left;
        width: 100%;
    }
    .frab-right {
        float: left;
        width: 100%;
        margin-left: 0;
    }
    .frab-right li h4 {
        color: #4cb2ff;
        font-size: 26px;
    }
    .frab-right li p {
        color: #283138;
        font-size: 16px;
        line-height: 32px;
    }
    .environment h3 {
        color: #283138;
        font-size: 26px;
        letter-spacing: 2px;
        text-align: center;
        margin-bottom: 2%;
        padding-top: 0%;
    }
    .environment li {
        float: left;
        margin-right: 2%;
        width: 100%;
    }
    .environment li img{
        width: 100%;
        margin-bottom: 5%;
    }
    .footer {
        width: 100%;
        height: auto;
        background: url(../images/footer_12.png);
        background-repeat: no-repeat;
        background-size: inherit;
        display: inline-block;
        padding-bottom: 30%;
        position: relative;
        margin-top: 4%;
    }
    .f-box img {
        text-align: center;
        margin: 0 auto;
        width: 34%;
        margin-top: 6%;
    }
}