* {
    box-sizing: border-box;
}
header {
    position: fixed;
    left: 0; top: 0;
    width: 100%; height: 80px;
    z-index: 999;
    background: #273050;
    display: flex;
    align-items: center;
}
header .inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
}
header .inner > a {
    display: block;
}
header .inner a h1 {
    font-size: 30px;
    font-weight: 600;
    color: #fff;
}
.index_top {
    background: url(../img/home_banner.jpg) no-repeat center/cover;
    height: 500px;
    display: flex;
    align-items: center;
}
.index_top .cont {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
}
.index_top .cont h1 {
    color: #C9D0E4;
    font-size: 60px;
    font-weight: 600;
    line-height: 1.5;
    margin-top: 60px;
}
.index_mid {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 80px 0;
}
.index_mid .title {
    font-size: 40px;
    font-weight: 800;
    text-align: left;
    margin-bottom: 50px;
}
.index_mid .list li {
    margin-bottom: 30px;
}
.index_mid .list li h3 {
    font-size: 25px;
    font-weight: 700;
    margin-bottom: 10px;
}
.index_mid .list li p {
    font-size: 22px;
    color: #5B5B5A;
    line-height: 1.3;
}

footer {
    background-color: #3A3A3A;
    padding: 50px 0;
}
footer .inner {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
}
footer .inner h1 {
    font-size: 40px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 25px;
}
footer .inner address {
    font-size: 20px;
    font-weight: 400;
    color: #9C9C9C;
    margin-bottom: 10px;
}
footer .inner p {
    font-size: 20px;
    font-weight: 400;
    color: #9C9C9C;
    margin-top: 10px;
}