.main-content .content-title {
    height: 54px;
    line-height: 54px;
    text-align: center;
    font-size: 26px;
    color: #313131;
    background-position: top center;
    background-repeat: no-repeat;
    background-size: auto 100%;
    margin: 80px auto;
    position: relative;
    font-weight: bold;
}

.main-content .content-title::before {
    content: '';
    display: block;
    position: absolute;
    left: 50%;
    bottom: -22px;
    height: 2px;
    width: 44px;
    background-color: #ddd;
    margin-left: -22px;
}

.content-about {
    color: #2F2F2F;
    font-size: 16px;
}

.content-about .about-data {
    margin-bottom: 44px;
}

.content-about .about-data-item {
    text-align: center;
    position: relative;
    flex: 25%;
}

.content-about .about-data-item::before {
    content: '';
    display: block;
    position: absolute;
    right: 0;
    bottom: 5%;
    height: 90%;
    width: 1px;
    background-color: #8F7565;
    opacity: 0.3;
}

.content-about .about-data-item:last-child::before {
    display: none
}

.content-about .number-box {
    display: flex;
    justify-content: center;
}

.content-about .number-box .right-words {
    display: flex;
    justify-content: space-between;
    flex-flow: column;
    color: #8F7565;
}

.content-about .number {
    font-size: 50px;
    color: #8F7565;
    font-weight: bold;
    line-height: 1;
}

.content-about .text {
    margin-top: 10px;
}

.content-about .about-text {
    line-height: 32px;
    text-indent: 2.1em;
    text-align: justify;
    padding: 0 20px;
}

.content-advantage {
    margin-top: 80px;
    padding: 80px 0;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

.content-advantage .about-data {
    background-color: #E5DDD3;
    padding: 36px 0;
}

.advantage-fourimages .image {
    width: 280px;
    height: 412px;
}

.content-factory {
    margin-bottom: 120px;
}

.factory-tips {
    text-align: center;
    margin-bottom: 50px;
    font-size: 16px;
    line-height: 32px;
    color: #2F2F2F;
}

.content-safe {
    background-color: #E2E5E8;
    padding: 40px 0 120px;
}

.safe-tips {
    text-align: center;
    margin-bottom: 50px;
    font-size: 18px;
    line-height: 32px;
    color: #2F2F2F;
}

.safe-tips .yellow {
    color: #A35B36;
}

.product-tips {
    width: 1175px;
    margin: 0 auto;
    text-align: center;
    margin-bottom: 50px;
    font-size: 16px;
    line-height: 32px;
    color: #2F2F2F;
}

.product-box {
    height: 640px;
}

.product-box .product-item {
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    flex-flow: column;
    padding: 0 120px;
    color: #fff;
    font-size: 16px;
    position: relative;
    cursor: pointer;
}

.product-box .product-item::before {
    content: '';
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.6);
    opacity: 0;
    transition: all 0.6s;
}

.product-box .product-item .icon,
.product-box .product-item .product-title,
.product-box .product-item .product-word {
    position: relative;
    z-index: 1;
}

.product-box .product-item .product-title {
    font-size: 22px;
    padding: 20px 0;
    transition: all 0.6s;
}

.product-box .product-item .product-word {
    opacity: 0.5;
    text-align: center;
    height: 0;
    overflow: hidden;
    line-height: 32px;
    position: relative;
}

.product-box .product-item .product-word::before {
    content: '';
    display: block;
    position: absolute;
    width: 120px;
    height: 2px;
    background-color: #fff;
    bottom: 0;
    left: 50%;
    margin-left: -60px;
    opacity: 0.5;
}

.product-box .product-item:hover::before {
    opacity: 1;
}

.product-box .product-item:hover .product-title {
    padding: 50px 0;
}

.product-box .product-item:hover .product-word {
    height: auto;
    padding-bottom: 20px;
}

.partner-box {
    flex-wrap: wrap;
}

.partner-box img {
    display: block;
    width: 236px;
    height: 104px;
    margin-bottom: 13px;
    border: 1px solid #eee;
    transition: all 0.3s;
}

.partner-box img:hover {
    box-shadow: 0 0 10px 0 #ddd;
}

.partner-tips {
    text-align: center;
    color: #8F7565;
    font-size: 20px;
    margin: 70px auto 100px;
    font-weight: bold;
}

.case-swiper {
    width: 100%;
}

.case-swiper .swiper-button-white {
    height: 100%;
    top: 0;
    margin: 0;
    width: 120px;
}

.case-swiper-prev {
    left: 0;
}

.case-swiper-next {
    right: 0;
}

.case-swiper .swiper-button-white:hover {
    opacity: 0.8;
}

.case-swiper-prev:hover {
    background-image: linear-gradient(to left, rgba(0,0,0,0) , rgba(0,0,0,0.8))
}

.case-swiper-next:hover {
    background-image: linear-gradient(to right, rgba(0,0,0,0) , rgba(0,0,0,0.8))
}

.content-case .slide-content {
    width: 100%;
    height: 100%;
    color: #fff;
    display: flex;
    flex-flow: column;
}

.content-case .slide-content .item {
    overflow: hidden;
}

.content-case .slide-content .case-item {
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    position: relative;
    cursor: pointer;
    float: left;
}

.content-case .slide-content .top .case-item,
.content-case .slide-content .bottom .case-item {
    width: 33.3%;
    height: 0;
    padding-bottom: 20%;
}

.content-case .slide-content .mid .case-item {
    width: 25%;
    height: 0;
    padding-bottom: 15%;
}

.content-case .slide-content .case-item .case-item-title {
    position: absolute;
    z-index: 1;
    font-size: 24px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.content-case .slide-content .case-item .case-item-in {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    opacity: 0;
    transition: all 0.6s;
}

.content-case .slide-content .case-item:hover .case-item-in {
    opacity: 1;
}

.case-tabs {
    max-width: 1200px;
    margin: 0 auto 30px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.case-tabs .item {
    width: calc((100% - 30px) / 7);
	margin-right: 5px;
    height: 50px;
    line-height: 50px;
    text-align: center;
    background-color: #ECECEC;
    color: #1D1D1D;
    cursor: pointer;
    font-size: 16px;
}

.case-tabs .item:last-of-type {
	margin-right: 0
}

.case-tabs .item.active {
    background-color: #573B2D;
    color: #fff;
}

.case-list-box {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.case-list-box::after {
    content: '';
    width: calc((100% - 20px) / 3);
    height: 0;
    display: block;
}

.case-list-box .item {
    width: calc((100% - 20px) / 3);
    height: 0;
    padding: calc((100% - 20px) / 3 * 0.56 / 2) 0;
    position: relative;
    margin-bottom: 10px;
    overflow: hidden;
    cursor: pointer;
    color: #fff;
}

.case-list-box .item .item-info {
    position: absolute;
    top: 0;
    left: 0;
    padding: 30px;
    z-index: 1;
}

.case-list-box .item .city {
    font-size: 28px;
    font-weight: bold;
    margin-bottom: 18px;
}

.case-list-box .item .name {
    padding-left: 13px;
    font-size: 24px;
    line-height: 24px;
    border-left: 2px solid #fff;
    margin-bottom: 9px;
    opacity: 0.8;
}

.case-list-box .item img {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    display: block;
    transition: all .6s;
}

.case-list-box .item:hover img {
    transform: scale(1.1);
}

.close_slide_box .text {
    font-size: 16px;
    width: 22px;
    text-align: center;
    padding: 12px;
    background-color: #5C5653;
    color: #fff;
}

.footer {
    margin-top: 0;
}