* {
    margin: 0;
    padding: 0;
}

li {
    list-style: none;
}

a {
    text-decoration: none;
    color: black;
}

.top {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 999;
    background: #2f72f5;
    color: #fff;
}

.top_nav {
    width: 1240px;
    display: flex;
    margin: 0 auto;
    text-align: center;
    padding: 10px;
}

.top .top_title {
    float: left;
    font-size: 18px;
    padding-top: 20px;
}

.top .logo {
    height: 40px;
    float: left;
}

.top .search_input {
    width: 600px;
    height: 40px;
    padding: 10px 40px 10px 10px;
    box-sizing: border-box;
    border: 1px solid #dfe3e9;
    border-radius: 3px;
    margin: 0 auto;
}

.center {
    top: 80px;
    position: relative;
    width: 1240px;
    display: flex;
    justify-content: space-between;
    margin: 32px auto 0;
    min-height: 500px;
}

.center .left_panel {
    position: sticky;
    top: 20px;
    width: 240px;
}

.center .left_panel .item_box {
    border: 1px solid #dce3e8;
    border-bottom: 0;
    width: 240px;
    box-sizing: border-box;
}

.center .left_panel .item_box:last-child {
    border-bottom: 1px solid #dce3e8;
}

.center .left_panel .item_box .first_category {
    padding: 12px 16px;
    cursor: pointer;
    background: #fcfcfc;
    font-size: 16px;
    color: #40485b;
    letter-spacing: 0;
    font-weight: bold;
}

.center .left_panel .item_box .second_category {
    border-top: 1px solid #dce3e8;
    display: none;
    padding: 16px;
    font-size: 14px;
    color: #40485b;
}

.center .left_panel .item_box .second_category .active {
    color: #fe7300;
}

.center .left_panel .item_box .second_category p {
    cursor: pointer;
    line-height: 1.6;
    margin-bottom: 5px;
}

.center .content_box {
    position: relative;
    top: -20px;
    width: 937px;
}

.center .content_box .navigation {
    margin-bottom: 8px;
}

.center .info {
    font-size: 14px;
    color: #999;
    margin: 10px 0;
}

.center .content_box .navigation span {
    margin-right: 6px;
    cursor: pointer;
    color: #005980;
    font-size: 14px;
}

.center .content_box .navigation span:last-child {
    color: #9b9b9b;
    cursor: default;
}

.right_panel {
    width: 240px;
}

.content {
    position: relative;
}

.content .title {
    position: absolute;
}

.title1 {
    position: relative;
    padding: 10px 0;
    font-size: 25px;
    color: #333333;
}

.title2 {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    line-height: 25px;
}

.footer {
    color: #9d9d9d;
    background: #fbfbfb;
    border-top: 1px solid #e3e9ed;
    min-width: 1240px;
    margin: 100px 0 0 0;
}

.footer .container {
    width: 1240px;
    margin: auto;
    padding-top: 1.4286em;
    padding-bottom: 1.4286em;
}

.footer .container .logo {
    width: 80px;
    height: 26px;
}

.footer .container .company {
    font-size: 14px;
    font-weight: 400;
    color: #7a7a7a;
    margin: 8px 0 16px 0;
}

.footer .container .address {
    display: flex;
    justify-content: space-between;
    color: #9d9d9d;
    font-size: 14px;
}

.footer .container .address li {
    line-height: 2;
    cursor: pointer;
}

.footer .container .address li:hover {
    color: #5d5d5d !important;
}

.footer .container .qrcode_box {
    display: flex;
    column-gap: 24px;
}

.footer .container .qrcode {
    display: flex;
    flex-direction: column;
    row-gap: 10px;
}

.footer .container .qrcode img {
    width: 80px;
    height: 80px;
}

.bottom_bar {
    background: #222;
    line-height: 42px;
}

.bottom_bar .container {
    justify-content: space-between;
    width: 1240px;
    margin: auto;
    color: #9d9d9d !important;
    font-size: 14px;
    text-align: center;
}

.bottom_bar .container a {
    color: #9d9d9d !important;
    margin-right: 5px;
    cursor: pointer;
}

.bottom_bar .container a:hover {
    color: #5d5d5d !important;
}

.bottom_bar .container img {
    width: 21px;
    height: 21px;
    vertical-align: middle;
    margin-right: 8px;
}