.lb-box {
    width: 100%;
    height: 15rem;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
}

@media (max-width: 1920px) {
    .lb-box {
        width: 100%;
        height: 500px;
    }
}

.lb-content {
    width: 100%;
    height: 100%;
}

.lb-item {
    width: 100%;
    height: 100%;
    display: none;
    position: relative;
}

.lb-item > a {
    width: 100%;
    height: 100%;
    display: block;
}

.lb-item > a > img {
    width: 100%;
    height: 100%;
    min-height: 260px;
}

.lb-item > a > span {
    width: 100%;
    display: block;
    position: absolute;
    bottom: 0px;
    padding: 15px;
    color: #fff;
    background-color: rgba(0, 0, 0, 0.7);
}

@media (max-width: 1200px) {
    .lb-item > a > span {
        padding: 10px;
    }
}

.lb-item.active {
    display: block;
    left: 0%;
}

.lb-item.active.left {
    left: -100%;
}

.lb-item.active.right {
    left: 100%;
}

/*  */
.lb-item.next,
.lb-item.prev {
    display: block;
    position: absolute;
    top: 0px;
}

.lb-item.next {
    left: 100%;
}

.lb-item.prev {
    left: -100%;
}

.lb-item.next.left,
.lb-item.prev.right {
    left: 0%;
}

.lb-sign {
    position: absolute;
    left: 35%;
    bottom: 0;
    margin-bottom: 0.5rem;
    /*padding: 5px 3px;*/
    border-radius: 6px;
    list-style: none;
    user-select: none;
    /*background-color: rgba(0, 0, 0, 0.7);*/
}

.lb-sign li {
    width: 60px;
    height: 4px;
    font-size: 14px;
    font-weight: 500;
    line-height: 20px;
    text-align: center;
    float: left;
    color: #aaa;
    margin: auto 4px;
    border-radius: 3px;
    cursor: pointer;
    background: #EBEBEB;
}

.lb-sign li:hover {
    color: #fff;
}

.lb-sign li.active {
    color: #000;
    background-color: #cccccc;
}

.lb-ctrl {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 50px;
    font-weight: 900;
    user-select: none;
    background-color: rgba(0, 0, 0, 0.7);
    color: #fff;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.1s linear;
}

@media (max-width: 568px) {
    .lb-ctrl {
        font-size: 30px;
    }
}

.lb-ctrl.left {
    left: -50px;
}

.lb-ctrl.right {
    right: -50px;
}

.lb-box:hover .lb-ctrl.left {
    left: 10px;
}

.lb-box:hover .lb-ctrl.right {
    right: 10px;
}

.lb-ctrl:hover {
    background-color: #000;
}