.qiaoxin9274 {
    /* max-width: 1200px; */
    margin: 0 auto;
    padding: 20px 0;
    /* width: 100%; */
}

.qiaoxin9274 .dann {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}

.qiaoxin9274 .dann li {
    margin: 0 20px 20px 20px;
    /* padding: 0 20px 20px 20px; */
    transition: all .36s ease;
    position: relative;
    box-shadow: 0 0 0 rgba(0, 0, 0, .15);
    width: calc(100% / 3 - 40px);
}

.qiaoxin9274 .dann li::before {
    content: "";
    position: absolute;
    right: -20px;
    background: rgba(255, 255, 255, 0.07);
    top: -200px;
    height: calc(100% + 200px);
    width: 1px;
}

.qiaoxin9274 .dann li:nth-child(3n)::before {
    background: rgba(255, 255, 255, 0);
}

.qiaoxin9274 .dann li:nth-child(3n-1) {
    padding-top: 70px;
}

.qiaoxin9274 .dann li .item-class {
    /* width: 360px; */
    width: 100%;
    height: 380px;
    position: relative;
}

.qiaoxin9274 .dann li .item-class img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all .36s ease;
}

.qiaoxin9274 .dann li .item-class::before {
    content: " ";
    display: block;
    width: 100%;
    height: 140px;
    position: absolute;
    top: 240px;
    background: linear-gradient(to top, #0e0e0e 23%, rgba(12, 12, 12, 0.8) 53%, rgba(0, 0, 0, 0));
    z-index: 1;
}

.qiaoxin9274 .dann li .banner-description {
    height: 104px;
    position: absolute;
    top: 275px;
    z-index: 2;
    width: 100%;
    text-align: right;
}

.qiaoxin9274 .dann li:nth-child(3n-1) .banner-description {
    top: 345px;
}

.qiaoxin9274 .dann li .banner-description::before {
    content: " ";
    height: 104px;
    width: 8px;
    background-color: #126ace;
    position: absolute;
    right: 0;
    top: 1px;
    z-index: 0;
    transition: all 0.3s ease;
}

.qiaoxin9274 .dann li .banner-description .hun {
    padding: 20px;
    margin-top: 10px;
    transition: all .36s ease;
}

.qiaoxin9274 .dann li .banner-description .hun .banner-name {
    color: #ffffff;
    font-size: 16px;
    text-overflow: ellipsis;
    overflow: hidden;
    white-space: nowrap;
}

.qiaoxin9274 .dann li .banner-description .hun .banner-docs {
    color: #ffffff;
    font-size: 14px;
    text-overflow: ellipsis;
    overflow: hidden;
    white-space: nowrap;
    opacity: 0.35;
    margin-top: 2px;
}

.qiaoxin9274 .dann li:hover .banner-description::before {
    width: 100%;
    z-index: -1;
}

.clearfix:after {
    clear: both;
    display: block;
    content: '';
}

.qiaoxin9274 .moreBtn {
    display: none;
}

.qiaoxin9274 .dann li .item-class .meng {
    display: block;
    width: 100%;
    position: absolute;
    height: 100%;
    left: 0;
    top: 0;
    z-index: 1;
    cursor: pointer;
}

.margin_unset{
    margin: unset !important;
}

@media screen and (max-width:1200px) {
    .qiaoxin9274 .dann li:nth-child(3n-1) {
        padding: 0;
    }

    .qiaoxin9274 .dann li:nth-child(3n-1) .banner-description {
        top: 275px;
    }

    .qiaoxin9274 .dann li::before {
        display: none;
    }

}

@media screen and (max-width:768px) {
    .qiaoxin9274 .dann li {
        margin: 0 10px 20px 10px;
    }

    .qiaoxin9274 .dann li .item-class {
        /* width: 355px; */
    }

    
    .qiaoxin9274 .dann li{
            width: calc(100% / 2 - 40px);
    }
}

@media screen and (max-width:510px) {
    .qiaoxin9274 .dann li {
        width: calc(100% - 20px);
        margin-left: 10px;
    }

    .qiaoxin9274 .dann li .item-class {
        width: 100%;
    }
}