* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

section {
    background-color: #f9f9f9;
}

.w_1180 {
    width: 1180px;
    margin: 0 auto;
}

ul,
ol {
    list-style: none;
}

.flex {
    display: flex;
}

.fl_head {
    height: 90px;
    align-items: center;
}

.fl_head_left {
    flex-shrink: 0;
}

.fl_head_left img {
    width: 248px;
    height: 54px;
}

.fl_head_nav {
    flex: 1;
    margin-right: 50px;
}

.fl_head_nav ul {
    justify-content: flex-end;
    cursor: pointer;
}

.fl_head_nav li,
.fl_head_nav a {
    font-weight: 400;
    font-size: 18px;
    color: #111111;
    text-decoration: none;
}

.fl_head_nav li {
    margin-left: 30px;
    height: 54px;
    line-height: 54px;
}

.fl_head_nav li img {
    margin-left: 5px;
}

.fl_head_right {
    width: 118px;
    height: 46px;
    background: #DB313A;
    border-radius: 6px;
    align-items: center;
    justify-content: center;
    color: #FFFFFF;
    font-size: 14px;
}

.fl_head_right img {
    margin-right: 6px;
}

footer {
    background: #333333;
}

.fl_footer_top {
    height: 73px;
    align-items: center;
    justify-content: space-between;

}

.fl_footer_top_item {
    font-weight: 400;
    font-size: 18px;
    color: #FFFFFF;
    text-decoration: none;
}

.fl_footer_center {
    border-top: 1px solid #464646;
    border-bottom: 1px solid #464646;
    padding: 30px 0;
}

.fl_footer_center_left_btn {
    width: 252px;
    height: 47px;
    background: #E63C3C;
    justify-content: center;
    font-weight: 400;
    font-size: 18px;
    color: #FFFFFF;
    line-height: 47px;
}

.fl_footer_center_left_bottom {
    margin-top: 19px;
    padding-top: 23px;
    border-top: 1px solid #464646;
}

.fl_footer_bottom {
    font-weight: 400;
    font-size: 12px;
    color: #999999;
    height: 53px;
    justify-content: center;
    align-items: center;
}

.fl_footer_bottom_center {
    margin: 0 50px;
}

.fl_footer_center_center {
    font-weight: 400;
    font-size: 14px;
    color: #FFFFFF;
    margin-left: 160px;
}

.fl_footer_center_center_item:last-child {
    margin-left: 100px;
}

.fl_footer_center_center_item_title {
    font-size: 18px;
}

.fl_footer_center_center_item div:not(:first-child) {
    margin-top: 10px;
}

.fl_footer_center_right {
    flex: 1;
    margin-left: 116px;
    justify-content: space-between;
}

.fl_footer_center_right_item img {
    display: block;
    width: 82px;
    height: 82px;
    margin: 0 auto;
}

.fl_footer_center_right_item p {
    font-family: PingFang;
    font-weight: 400;
    font-size: 18px;
    color: #FFFFFF;
    text-align: center;
    margin-top: 12px;
}

.fl_footer_center_right_item span {
    text-align: center;
    font-weight: 400;
    font-size: 14px;
    color: #FFFFFF;
    margin-top: 15px;
}

.fl_nav {
    padding: 18px 0;
}

.fl_nav a {
    font-weight: 400;
    font-size: 14px;
    color: #999999;
    text-decoration: none;
}

.arrow-icon {
    transition: transform 0.3s ease;
    /* 添加过渡效果 */
}

.arrow-icon.rotated {
    transform: rotate(180deg);
    /* 旋转 180 度 */
}

.fl_head_nav_haveson {
    position: relative;
}

.fl_head_nav_list {
    width: 100%;
    display: none;
    position: absolute;
    bottom: -18px;
    transform: translateY(100%);
    background: #fff;
    border: 1px solid #e6e6e6;
    box-sizing: border-box;
    text-align: center;
}

.fl_head_nav_list a:not(:last-child) {
    display: block;
    border-bottom: 1px solid #e6e6e6;

}