.back-index {
    background-image: url(fbg.png)
}
.youqing {
    display: flex;
    align-items: center;
    height: 5.1rem;
    font-size: .8rem;
    background-color: #f2f2f2;
    border-bottom: 1px solid #ddd;
    color: #333;
    white-space: nowrap
}

.youqing div {
    display: flex;
    flex-wrap: wrap
}

.youqing div a {
    color: #666;
    margin-left: 3.1rem
}

@media screen and (max-width:600px) {
    .youqing {
        font-size:1rem;
        background-color: #383842;
        border-bottom: 1px solid #4c4c4c;
        color: #fff;
        padding: 1rem 1rem;
        height: auto;
        display: block
    }
    .youqing .container{display: block;margin-top: 0;}
    .youqing div {
        margin-top: 1rem;
        display: grid;
        grid-template-columns: 1fr 1fr;
        grid-row-gap: 0rem
    }

    .youqing div a {
        color: #b9b9b9 !important;
        margin-left: 0
    }
}


.free-test {
    display: flex;
    align-items: center;
    flex-direction: column;
    padding: 2.3rem 0;
    background-size: 100% 100%
}

.free-test .free-title {
    font-size: 1.6rem;
    color: #fff;
    font-weight: 700
}

.free-test .free-button {
    height: 2.7rem;
    background: #ff6a00;
    border-radius: 1.4rem;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0 2rem;
    font-size: 1rem;
    color: #333;
    margin-top: 1.1rem;
    cursor: pointer
}

@media screen and (max-width:600px) {
    .free-test {
        padding: 3rem 2rem;
        box-sizing: border-box
    }

    .free-test .free-title {
        font-size: 1.2rem
    }

    .free-test .free-button {
        padding: 0 1rem;
        height: 2.5rem;
        border-radius: 2rem;
        margin-top: 1rem;
        font-size: 1.2rem
    }
    .back-index {
        background-image: url(fbg.png)
    }
}

@media screen and (min-width:600px) {

    .bo-content-mobilie,
    .bo-logo-mobile,
    .t-z-mobile {
        display: none
    }
    .bo-logo img{
    	-webkit-filter:brightness(0) invert(1);
    	filter:brightness(0) invert(1);
    }
}

.bottom-bar {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 1.6rem 0;
    height: 8.6rem;
    box-sizing: border-box;
    background-color: #f2f2f2
}

.bottom-bar .bo-logo {
    cursor: pointer;
    display: flex;
    align-items: center
}

.bottom-bar .bo-logo img {
    width: 16rem;
    height: 2.5rem;
    filter: brightness(0);
}

.bottom-bar .bo-logo .bo-logo1 {
    height: 1.7rem
}

.bottom-bar .bo-logo div {
    width: .1rem;
    height: 1.9rem;
    background: #ddd;
    margin: 0 .65rem
}

.bottom-bar .bo-logo .bo-logo2 {
    height: 1.5rem
}

.bottom-bar .bo-logo .sitmap {
    flex: 1;
    text-align: right;
    background-color: transparent
}

.bottom-bar .bo-logo .sitmap a {
    color: #666;
    font-size: .7rem
}

.bottom-bar .bo-bar-content {
    display: flex;
    justify-content: space-between;
    font-size: .7rem;
    color: #666;
    align-items: center
}

.bottom-bar .bo-bar-content div {
    display: flex;
    align-items: center;
    cursor: pointer
}
.bottom-bar .bo-bar-content div a{color: #333;font-size: 0.8rem;}

.bottom-bar .bo-bar-content div img {
    width: 1.8rem;
    height: 1.8rem;
    margin-right: .3rem
}

.bottom-bar .bo-bar-content .bo-tele {
    border-bottom: 1px solid #666
}

@media screen and (max-width:600px) {
    .bottom-bar {
        display: block;
        padding: 2rem 1rem 100px 1rem;
        height: auto;
        background-color: #383842;
        position: relative
    }

    .bottom-bar .bo-logo {
        height: 5.5rem;
        width: 80rem;
        display: none
    }

    .bottom-bar .bo-logo-mobile {
        display: flex;
        align-items: center
    }

    .bottom-bar .bo-logo-mobile img {
    	max-width: 100%;
    	height: auto;
    }

    .bottom-bar .bo-logo-mobile .b-l-1 {
        width: 26.1rem;
        height: 7.2rem
    }

    .bottom-bar .bo-logo-mobile .b-l-2 {
        width: 48.2rem;
        height: 5.5rem
    }

    .bottom-bar .bo-logo-mobile div {
        width: .3rem;
        height: 8.1rem;
        background-color: #fff;
        margin-left: 3.2rem;
        margin-right: 3.7rem
    }

    .bottom-bar .bo-bar-content {
        display: none
    }

    .bottom-bar .bo-content-mobilie {
        margin:2em 0;
    }

    .bottom-bar .bo-content-mobilie .c-us {
        color: #fff;
        font-size: 1.2rem
    }

    .bottom-bar .bo-content-mobilie .c-item-mobile {
        color: #ddd;
        margin-top: 1rem;
        font-size: 1.2rem;
        display: flex;
        align-items: center
    }

    .bottom-bar .bo-content-mobilie .c-item-mobile img {
        width: 2rem;
        height: 2rem;
        margin-right: 1.1rem
    }

    .bottom-bar .t-z-mobile {
        position: fixed;
        right: 2.7rem;
        bottom: 9.2rem;
        display: flex;
        flex-direction: column
    }

    .bottom-bar .t-z-mobile .show-yh-btn,
    .bottom-bar .t-z-mobile .te-mobile {
        width: 15.7rem;
        height: 15.7rem
    }
}

.pop-tele {
    padding: 3.5rem;
    background: #fff;
    box-shadow: 0 .7rem 1.6rem rgba(0, 0, 0, .12);
    font-size: 4rem
}

.pop-tele a {
    padding-bottom: 2px;
    border-bottom: 1px solid #229435;
    color: #229435
}

.black {
    filter: brightness(0);
}
.white {
    -webkit-filter:brightness(0) invert(1);
    filter:brightness(0) invert(1);
}