:root {
    --box-pos: sticky
}

.index-header {
    position: sticky;
    position: var(--box-pos);
    top: 0;
    width: 100%;
    z-index: 10
}

.tops {
    background-color: transparent;
    height: 63px;
    transition: background-color .5s;
    width: 100%
}

.header-nav {
    color: #fff;
    flex: 1;
    min-width: 500px;
    padding-left: 40px
}

.header-nav>.img {
    background: no-repeat 50%/100% 100%;
    height: 39px;
    margin-right: 16px;
    min-width: 100px;
    overflow: hidden;
    position: relative;
    width: 112px
}

.header-nav>.img:after {
    background: transparent;
    content: "";
    height: 130%;
    left: -14px;
    position: absolute;
    top: -7px;
    transform: rotate(23deg);
    width: 8px
}

.header-nav .ul>div>span {
    background-color: var(--h-c);
    bottom: 0;
    content: "";
    height: 2px;
    left: 0;
    opacity: 0;
    position: absolute;
    transform: translate(17px);
    transition: all .8s cubic-bezier(0, 0, .24, 1.18);
    width: calc(var(--w))
}

.header-nav .ul .nav-show-box {
    background-color: #fff;
    border-top: 1px solid #ccc;
    box-shadow: 0 10px 12px 1px hsla(0, 0%, 93%, .749);
    display: none;
    left: 0;
    padding: 20px;
    position: absolute;
    right: 0;
    transform: translateY(9px)
}

.header-nav .ul .nav-show-box .tab-li:hover {
    color: var(--h-c);
    cursor: pointer
}

.header-nav .ul .nav-show-box>div {
    display: none;
    /* height: 50vh */
}

.header-nav .ul>#topTabWhee {
    flex: none;
    overflow-x: auto;
    overflow-y: hidden;
    overflow: auto hidden;
    padding-top: 2px;
    position: relative;
    scrollbar-color: hsla(0, 0%, 59%, .349) hsla(0, 0%, 95%, .98);
    scrollbar-width: none;
    z-index: 9
}

.header-nav .ul>#topTabWhee::-webkit-scrollbar {
    height: 0;
    width: 0
}

.header-nav .ul>#topTabWhee>a {
    color: #fff;
    cursor: pointer;
    flex: none;
    font-size: 14px;
    padding: 10px 15px 5px;
    -webkit-user-select: none;
    -moz-user-select: none;
    user-select: none
}

.header-nav>.ul>#topTabWhee>a:hover {
    color: var(--h-c);
    cursor: pointer
}

.header-nav-current {
    color: var(--h-c) !important;
    position: relative
}

.header-nav-end {
    color: #fff;
    padding-right: 68px
}



.header-nav-end input::-webkit-input-placeholder {
    color: #fff;
    letter-spacing: 1px
}

.header-nav-end input:-moz-placeholder,
.header-nav-end input::-moz-placeholder {
    color: #fff;
    letter-spacing: 1px
}

.header-nav-end input:-ms-input-placeholder {
    color: #fff;
    letter-spacing: 1px
}

.header-nav-end>div {
    padding-right: 15px
}

.header-nav-end>div>a {
    color: #fff;
    cursor: pointer;
    flex: none;
    font-size: 14px;
    padding: 5px 14px
}

.header-nav-end>div>a:hover {
    color: var(--h-c)
}

.header-nav-end .register {
    background: linear-gradient(110deg, var(--h-c) 0, #ffa727 100%);
    border-radius: 2px;
    box-shadow: 0 3px 15px 1px rgba(255, 106, 0, .031);
    color: #fff;
    cursor: pointer;
    font-size: 14px;
    height: 35px;
    letter-spacing: 1px;
    line-height: 35px;
    text-align: center;
    width: 136px
}

.header-nav-end .register:hover {
    opacity: .7
}