html, body {
    margin: 0;
    padding: 0;
}

body {
    font: 12px /1.5 system-ui, -apple-system, Segoe Ul, Roboto, Ubuntu,Cantarell, Noto Sans, sans-serif, Apple Color Emoji, Segoe Ul EmojiSegoe UI Symbol, Noto Color Emoji, BlinkMacSystemFont, Helvetica Neue,Arial, PingFang Sc, PingFang Tc, PingFang HK, Microsoft Yahei,Microsoft JhengHei;
}

#back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 30px;
    height: 30px;
    z-index: 9999;
    cursor: pointer;
}
#back-to-top img {
    width: 100%;
    height: 100%;
}

ul, li {
    margin: 0;
    padding: 0;
}

a {
    font-size: 16px;
    color: #111111;
    text-decoration: none;
}
#header {
    position: fixed;
    width: 100%;
    top: 0;
    left: 50%;
    z-index: 9999;
    transform: translate(-50%, 0);
    background: rgba(255,255,255,0.7);
    box-shadow: 0 1px 0 0 rgba(217,217,217,0.5);
}
.nav {
    width: 1200px;
    height: 70px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.nav-logo {
    flex-shrink: 0;
    width: 160px;
    height: 52px;
    margin-right: 80px;
}
.nav-logo img {
    width: 100%;
    height: 100%;
}
ul {
    flex: 1;
    height: 100%;
    list-style-type: none;
    display: flex;
    align-content: center;
}
ul li a {
    display: block;
    position: relative;
}
ul li:hover .drop-down {
    display: block;
}
.fa {
    position: fixed !important;
    left: 0 !important;
    width: 100vw !important;
    height: calc(100vh - 70px) !important;
    overflow-y: scroll !important;
    padding: 30px 0 !important;
    box-sizing: border-box !important;
}
.fa-content {
    width: 1200px;
    margin: 0 auto;
}
.fa-content-item {
    width: 100%;
}
.fa-content-item-label {
    display: inline;
    font-weight: 600;
    font-size: 18px;
    color: #191B1F;
    cursor: pointer;
}
.fa-content-item-label:hover {
    color: #FF7900 !important;
}
.fa-content-item-list {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}
.fa-content-item-list-zw {
    width: 250px;
    height: 0;
}
.fa-content-item-list-row:hover {
    background: rgba(255,121,0,0.06) !important;
}
.fa-content-item-list-row:hover .fa-content-item-list-row-info span:nth-child(1) {
    color: #FF7900 !important;
    font-weight: 500 !important;
}
.fa-content-item-list-row {
    width: 250px;
    height: 60px;
    padding: 10px;
    box-sizing: border-box;
    background: rgba(255,255,255,0.06);
    border-radius: 4px;
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    cursor: pointer;
}
.fa-content-item-list-row img {
    width: 36px;
    height: 36px;
    margin-right: 12px;
}
.fa-content-item-list-row-info {
    display: flex;
    flex-direction: column;
}
.fa-content-item-list-row-info span:nth-child(1) {
    font-weight: 400;
    font-size: 14px;
    color: #191B1F;
    line-height: normal;
}
.fa-content-item-list-row-info span:nth-child(2) {
    font-weight: 400;
    font-size: 12px;
    color: #7B7F87;
    line-height: normal;
}
.drop-down {
    position: absolute;
    top: 70px;
    left: -50px;
    width: 164px;
    display: none;
    background: #FFFFFF;
    box-shadow: 0 7px 20px 0 rgba(0,0,0,0.1);
}
.drop-down-item {
    width: 100%;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 400;
    font-size: 14px;
    color: #222222;
    cursor: pointer;
}
.drop-down-item:hover {
    font-weight: 500;
    color: #FF7900;
}
ul li {
    margin-right: 50px;
    line-height: 70px;
    position: relative;
}
ul li:last-child {
    margin: 0 !important;
}
ul li .underline {
    width: 30px;
    height: 4px;
    position: absolute;
    bottom: 9px;
    left: 50%;
    transform: translate(-50%, 0);
    background: #FF7900;
}
.nav-btn {
    margin-left: 80px;
    flex-shrink: 0;
    width: 100px;
    height: 44px;
    line-height: 44px;
    text-align: center;
    background: #FF7900;
    border-radius: 22px;
    font-weight: 500;
    font-size: 16px;
    color: #FFFFFF;
    border: none;
    cursor: pointer;
    transition: .5s;
}
.nav-btn:hover {
    background: #FF8C24;
}
.index-banner-c-c {
    width: 124px;
    height: 46px;
    padding: 0 19px;
    box-sizing: border-box;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #FF7900;
    box-shadow: 0 2px 10px 0 rgba(255,121,0,0.2);
    border-radius: 30px;
    cursor: pointer;
    transition: .5s;
}
.index-banner-c-c:hover {
    background: #FF8C24;
}
.index-banner-c-c span {
    font-weight: 500;
    font-size: 16px;
    color: #FFFFFF;
    margin-right: 5px;
}
.index-banner-c-c img {
    width: 16px;
    height: 16px;
}
.index-y-btn {
    width: 124px;
    height: 46px;
    line-height: 46px;
    text-align: center;
    font-weight: 500;
    font-size: 16px;
    color: #FFFFFF;
    background: #FF7900;
    border-radius: 30px;
    margin-top: 40px;
    cursor: pointer;
    transition: .5s;
}
.index-y-btn:hover {
    background: #FF8C24;
}
.footer {
    width: 100%;
    display: flex;
    flex-direction: column;
}
.footer-form {
    width: 100%;
    height: 106px;
    background: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: inset 0 1px 0 0 #DFE2E8;
}
.footer-form-list {
    width: 1200px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.footer-form-list-title {
    display: flex;
    align-items: center;
}
.footer-form-list-title span:nth-child(1) {
    font-weight: 600;
    font-size: 26px;
    color: #191B1F;
    margin-right: 20px;
}
.footer-form-list-title span:nth-child(2) {
    font-weight: 400;
    font-size: 16px;
    color: #7B7F87;
}
.footer-form-list-i {
    display: flex;
    align-items: center;
}
.footer-form-list-i input {
    height: 46px;
    background: #FAFBFF;
    border-radius: 30px;
    border: 1px solid #E5E5E5;
    font-weight: 400;
    font-size: 15px;
    color: #222222;
    text-align: center;
    outline: none;
    margin-right: 15px;
}
.footer-form-list-i-btn {
    width: 124px;
    height: 46px;
    line-height: 46px;
    text-align: center;
    background: #FF7900;
    border-radius: 30px;
    font-weight: 500;
    font-size: 16px;
    color: #FFFFFF;
    cursor: pointer;
}
.footer-c {
    width: 100%;
    display: flex;
    flex-direction: column;
    background: #2E333A;
}
.footer-c-logo {
    width: 100%;
    height: 130px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid #393F48;
}
.footer-c-logo-c {
    width: 1200px;
    height: 100%;
    display: flex;
    align-items: center;
}
.footer-c-logo-c img {
    width: 160px;
    height: 52px;
}
.footer-c-n {
    width: 100%;
    padding: 40px 0;
    box-sizing: border-box;
    border-bottom: 1px solid #393F48;
}
.footer-c-n-box {
    width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: start;
    justify-content: space-between;
}
.footer-c-n-item {
    display: flex;
    flex-direction: column;
}
.footer-c-n-item-label {
    font-weight: 500;
    font-size: 16px;
    color: #E5E5E5;
    margin-bottom: 24px;
}
.footer-c-n-item-row {
    font-weight: 400;
    font-size: 14px;
    color: #9196A1;
    margin-bottom: 15px;
}
.footer-c-n-item-row a {
    font-weight: 400;
    font-size: 14px;
    color: #9196A1;
}
.footer-c-n-item-row:last-child {
    margin: 0 !important;
}
.footer-c-n-item-qrcode {
    width: 120px;
    display: flex;
    flex-direction: column;
}
.footer-c-n-item-qrcode img {
    width: 120px;
    height: 120px;
}
.footer-c-n-item-qrcode span {
    width: 100%;
    text-align: center;
    font-weight: 400;
    font-size: 13px;
    color: #E5E5E5;
    margin-top: 18px;
}
.footer-c-info {
    width: 100%;
    height: 79px;
    line-height: 79px;
    text-align: center;
    font-weight: 400;
    font-size: 14px;
    color: #7B7F87;
}
.footer-c-info a {
    font-weight: 400;
    font-size: 14px;
    color: #7B7F87;
}