.header {
    width: 100%;
    height: 11rem;
    background: rgba(0, 0, 0, 0.3);
    padding: 0 7.2rem;
    position: fixed;
    top: 0;
    left: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 999;
}

.header .logo {
    width: 38rem;
    height: 8rem;
    background: url("https://www.20kbgo.com/images/logo.png") no-repeat;
    background-size: 100% 100%;
}

.header .logo img {
    width: 38rem;
    height: 8rem;
}

/* nav */
.nav {
    display: flex;
}

.nav>li {
    padding: 0 1.4rem;
    text-align: center;
    height: 10rem;
    position: relative;
}

.nav>li.nav-active::after {
    width: 50%;
    left: 25%;
}

.nav>li::after {
    content: '';
    width: 0;
    height: 0.2rem;
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transition: all ease 0.3s;
    background: #fff;
}

.nav>li:hover::after {
    width: 50%;
    left: 25%;
}

.nav>li.nav-active>a,
.nav>li:hover>a {
    font-size:2.4rem;
    font-weight: 700;
}

.nav>li>a {
    display: inline-block;
    position: relative;
    width: 100%;
    height: 10rem;
    line-height: 10rem;
    color: #fff;
    font-size: 2rem;
    transition: all ease 0.3s;
}

.dropdown-menu {
    height: 0;
    width: 100%;
    position: absolute;
    top: 10rem;
    left: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 999;
    overflow: hidden;
}

.dropdown-menu>li {
    position: relative;
}

.dropdown-menu>li>a {
    width: 100%;
    height: 4rem;
    text-align: center;
    transition: all ease 1s;
    line-height: 4rem;
    font-size: 1.6rem;
    color: #fff;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 1;
    overflow: hidden;
    padding: 0 0.3rem;
    z-index: 999;
    position: relative;
}

.dropdown-menu>li .mline {
    width: 0%;
    background: #932024;
    height: 4rem;
    position: absolute;
    left: 0;
    top: 0;
    z-index: 0;
}

.header-nav {
    display: flex;
}

.header-right {
    display: flex;
    align-items: center;
    color: #fff;
    font-size: 1.6rem;
    position: relative;
    padding-left: 1.6rem;
}
.header-right>a{
 font-size: 2rem;
}
.header-right::before {
    content: '';
    width: 0.2rem;
    height: 1.2rem;
    position: absolute;
    left: 0;
    top: calc(50% - 0.6rem);
    background: #fff;
}

.header-right .search {
    margin: 0 1.6rem;
    cursor: pointer;
}

.fadeInDown {
    animation: fadeInDown 0.5s ease;
}

@keyframes fadeInDown {
    0% {
        transform: translateY(-5rem);
        opacity: 0;
    }

    100% {
        transform: translateY(0);
        opacity: 1;
    }
}

.header-right-moblie {
    display: none;
}

.m-nav {
    display: none;
}

/* footer */
.footer {
    width: 100%;
    min-height: 32rem;
    background: url("https://www.20kbgo.com/images/footer-bg.png") no-repeat;
    background-size: cover;
    position: relative;
}

.footer-box {
    width: 160rem;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    padding-top: 4rem;
    overflow: hidden;

}

.footer-left {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    transform: translateX(-52.6rem);
    opacity: 0;
    transition: all 0.8s ease-out;
}

.footer-left .logo {
    width:30.7rem;
    height: 6.4rem;
    display: block;
}

.footer-left .logo img {
    width:30.7rem;
    height: 6.4rem;
}
.phone,
.address,
.email {
    display: flex;
    height: 3.6rem;
    line-height: 3.6rem;
    font-size: 1.4rem;
    font-family: PingFang SC, PingFang SC;
    font-weight: 500;
    color: #FFFFFF;
     width: 44rem;
  margin-top: 2rem;
}
.phone {
    height: auto;
}
.phone img,
.email img,
.address img {
    width: 3.6rem;
    height: 3.6rem;
    margin-right: 1.6rem;
}
.phone-num>div {
    display: flex;
}

.phone-num>div>span {
    white-space: nowrap;
}

.footer-middle {
    width: 83rem;
    transform: translateX(-83rem);
    opacity: 0;
    transition: all 1s ease-out;
}

.middle-item {
    width: 83rem;
    margin-bottom: 3rem;
    display: flex;
}

.middle-item .title {
    width: 11rem;
    font-size: 2rem;
    font-family: PingFang SC, PingFang SC;
    font-weight: bold;
    color: #FFFFFF;
    line-height: 2.8rem;
    border-right: 1px solid #fff;
}

.middle-list {
    width: 72rem;
    display: flex;
    flex-wrap: wrap;
}

.middle-list>a {
    font-size: 1.8rem;
    font-family: PingFang SC, PingFang SC;
    font-weight: 500;
    color: #FFFFFF;
    margin-left: 2.4rem;
    line-height: 2.8rem;
}

.footer-right-box {
    width: 14rem;
}

.footer-right {
    width: 14rem;
    display: flex;
    justify-content: space-between;
    transform: translateX(10rem);
    opacity: 0;
    transition: all 0.8s ease-out;
    position: absolute;
    right: 16rem;
    top: 4rem;
}

.footer-right>div {
    width: 6rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    cursor: pointer;
}

.footer-right .code {
    width: 14rem;
    height: 14rem;
    background: #fff;
    position: absolute;
    left: calc(50% - 7rem);
    bottom: 100%;
    visibility: hidden;
    margin-bottom: 1rem;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.15);
    padding: 1rem;
    transform: translateY(-1rem);
    opacity: 0;
    z-index: 99;
    transition: all 0.2s ease-out 0s;
}

.footer-right .code::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 100%;
    margin-left: -0.8rem;
    width: 0;
    height: 0;
    border: 0.8rem solid transparent;
    font-size: 0;
    border-top-color: #fff;
}



.footer-right .code>img {
    width: 12rem;
    height: 12rem;
}

.footer-right>div:hover .code {
    visibility: visible;
    transform: translateY(0);
    opacity: 1;
}

.footer-right>div>img {
    width: 6rem;
    height: 6rem;
}

.footer-right>div span {
    font-size: 1.2rem;
    font-family: PingFang SC, PingFang SC;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 1.4rem;
}

.fooerFadeIn {
    transform: translateX(0);
    opacity: 1;
}

.copyright {
    width: 160rem;
    padding: 2.3rem 0;
    margin: 4.8rem auto 0;
    border-top: 1px solid #fff;
    font-size: 1.4rem;
    text-align: center;
    font-family: PingFang SC, PingFang SC;
    font-weight: 500;
    color: #FFFFFF;
}

.dy-bg {
    width: 100%;
    height: 58rem;
}

.dy-bg img {
    width: 100%;
    height: 58rem;
}

/* 左侧二级菜单 */
.content {
    width: 100%;
    width: 160rem;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
}

.con-left {
    width: 30rem;
    margin-top: -15rem;
    position: relative;
    z-index: 9;
}

.con-left .title {
    width: 100%;
    height: 15rem;
    background: #932024;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.con-left .title>span:nth-child(1) {
    font-size: 3.2rem;
    font-family: PingFang SC, PingFang SC;
    font-weight: bold;
    color: #FFFFFF;
}

.con-left .title>span:nth-child(2) {
    font-size: 2rem;
    font-family: PingFang SC, PingFang SC;
    font-weight: 500;
    color: #FFFFFF;
}

.con-nav {
    width: 100%;
    background: #fff;
    box-shadow: 0px 0px 40px 0px rgba(0, 0, 0, 0.1);
}

.con-list {
    width: 100%;
    min-height: 50.4rem;
}

.con-list a {
    display: block;
    width: 100%;
    height: 7.2rem;
    font-size: 2rem;
    font-family: PingFang SC, PingFang SC;
    font-weight: 400;
    color: #333333;
    line-height: 7.2rem;
    display: flex;
    align-items: center;
    transition: all 0.3s linear;

}

.con-list a::before {
    content: '';
    width: 3.2rem;
    height: 1px;
    background: #666666;
    margin-right: 0.8rem;
    transition: all 0.3s linear;

}

.con-li>a::before {
    margin-left: 4rem;
}

.con-list a.li-on,
.con-list a:hover {
    color: #932024;
    font-size: 2.4rem;
    font-weight: bold;
}

.con-li>a.li-on::before,
.con-li>a:hover::before {
    margin-left: 0;
    width: 7.2rem;
    background: #932024;
}

.drop-list>a::before {
    margin-left: 8rem;
}

.drop-list>a.li-on::before,
.drop-list>a:hover::before {
    margin-left: 0;
    width: 11.2rem;
    background: #932024;
}

.con-bg {
    width: 100%;
    height: 19.6rem;
    background: url("https://www.20kbgo.com/images/zszx-bg.png") no-repeat;
    background-size: 100% 100%;
}

.con-right {
    width: 127rem;
    padding: 8rem 0;
}

.search-box {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  z-index: 999;
  display: none;
}

.search-mask {
  width: 100%;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
  background: rgba(0, 0, 0, 0.8);
}

.search-content {
  width: 80rem;
  height: 16rem;
  position: absolute;
  top: calc(50% - 18rem);
  left: calc(50% - 40rem);
}

.search-title {
  font-size: 3.2rem;
  font-family: PingFang SC, PingFang SC;
  font-weight: bold;
  color: #FFFFFF;
  text-align: center;
}

.search-input {
  display: flex;
  margin-top: 3rem;
}

.search-input .input {
  width: 73rem;
  height: 7rem;
  outline: 0;
  font-size: 2.8rem;
  font-family: PingFang SC, PingFang SC;
}

.search-input .search-btn {
  width: 7rem;
  height: 7rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #932024;
  cursor: pointer;
}

.search-input .search-btn img {
  width: 2.3rem;
  height: 2.3rem;
}