html, body {
    margin: 0;
    padding: 0;
    font-size: 14px;
    min-height: 100%;
    background-color: #fff;
}

.relative {
    position: relative;
}

.clear-fl:after {
    content: "";
    display: block;
    clear: both;
}

.fl-l {
    float: left;
}

.box {
    display: flex;
}

.box-just-between {
    justify-content: space-between;
}

.box-just-around {
    justify-content: space-around;
}

.box-just-center {
    justify-content: center;
}

.box-align-center {
    align-items: center;
}

.t-a-c {
    text-align: center;
}

.p-b-50 {
    padding-bottom: 50px;
}

.bg-f8f8f8 {
    background-color: #f8f8f8;
}

.main-container {
    width: 1100px;
    margin: 0 auto;
}

.head {
    background-color: #fff;
}

.head img {
    max-width: 1300px;
    display: block;
    margin: 0 auto;
}

.title_container {
    padding: 44px 0 49px;
}

.title_main {
    font-size: 24px;
    font-weight: 500;
    color: rgba(1, 1, 1, 1);
    text-align: center;
}

.title_main:before {
    content: "";
    display: inline-block;
    width: 114px;
    height: 3px;
    background: rgba(155, 155, 155, 1);
    margin-right: 20px;
}

.title_main:after {
    content: "";
    display: inline-block;
    width: 114px;
    height: 3px;
    background: rgba(155, 155, 155, 1);
    margin-left: 20px;
}

.title_sub {
    font-size: 18px;
    font-weight: 500;
    color: rgba(155, 155, 155, 1);
}

.bao_container {
    width: 224px;
    height: 224px;
    cursor: pointer;
}

.bao_container:hover {
    box-shadow: 0 0 10px #999;
}

.bao_img {
    display: block;
    width: 100%;
    height: 100%;
}

.bao_title {
    color: #fff;
    font-size: 16px;
    height: auto;
    line-height: 51px;
    padding-left: 15px;
    word-break: keep-all;
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: rgba(0, 0, 0, 0.5);
}

.bao_btn {
    border: none;
    color: #fff;
    background: #1285bd;
    text-align: center;
    margin: 10px auto;
    display: block;
    line-height: 32px;
    padding: 0 10px;
    border-radius: 4px;
}

.bao_btn:hover {
    cursor: pointer;
    color: #fff;
    background: #ff5a0a;
}


.intro-container {
    width: 768px;
    margin: 0 auto;
}

.intro-content {
    font-size: 20px;
    font-weight: 500;
    color: rgba(1, 1, 1, 1);
    line-height: 30px;
    margin: 0;
}

.bao-list {
    list-style: none;
    width: 860px;
    margin: 0 auto;
    padding: 80px 0;
    text-align: center;
}

.bao-list li {
    width: 190px;
}

.bao-list li img {
    display: block;
    width: 100%;
}

.bao-list p {
    font-size: 15px;
    font-weight: 500;
    color: rgba(0, 0, 0, 1);
    margin: 10px 0;
}

.footer {
    background: #1B1F2A;
}

.footer-container {
    width: 960px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;

    color: #fff;
    text-align: center;
    font-size: 18px;
    font-weight: bold;
}

.footer-container img {
    width: 75px;
    display: block;
}

.footer-content-left {
    flex: 3 3 auto;
}

.footer-content-right {
    flex: 1 1 auto;
}