h4 {
    font-weight: bold;
    letter-spacing: 0px;
    color: #000000;
    text-align: center;
    margin: 0;
}

h6 {
    font-family: Bahnschrift;
    letter-spacing: 2px;
    color: #999999;
    text-align: center;
    margin: 20px 0 0;
}

.public_banner {
    padding-top: 100px;
}


/* ========== product_value start ========== */

.product_value {
    padding: 120px 0 100px;
}

.product_value p {
    margin-top: 60px;
    line-height: 34px;
    letter-spacing: 0px;
    color: #333333;
}

.product_value_pic {
    margin-top: 60px;
    text-align: center;
}


/* ========== product_value end ========== */


/* ========== product_function start ========== */

.product_function {
    padding: 100px 0;
    background-color: #f7f7f7;
}

.function_nav {
    margin-top: 60px;
    color: #666;
}

.function_nav li {
    text-align: center;
    width: 16.6%;
    height: 60px;
    border-bottom: 1px solid #d9e0ed;
    line-height: 60px;
    cursor: pointer;
    transition: all .4s;
}

.function_nav li>div {
    display: inline-block;
}

.function_nav li .pic {
    margin-right: 15px;
    width: 24px;
    text-align: center;
    overflow: hidden;
    vertical-align: middle;
}

.function_nav li .text {
    vertical-align: middle;
}

.function_nav li:hover,
.function_nav .active {
    border-bottom: 2px solid #2775ff;
    font-weight: bold;
    color: #2775ff;
}

.function_nav li:hover .img_block,
.function_nav .active .img_block {
    display: none;
}

.function_nav li:hover .img_none,
.function_nav .active .img_none {
    display: inline-block;
}

.function_container {
    margin-top: 50px;
}

.function_item_left {
    width: 50%;
}

.function_item_title {
    font-weight: bold;
    letter-spacing: 0px;
    color: #333333;
    position: relative;
    padding-bottom: 30px;
    line-height: 1;
    margin-top: 30px;
}

.function_item_title::before {
    content: "";
    left: 0;
    position: absolute;
    bottom: 0;
    width: 118px;
    height: 2px;
    background-color: #c3cddf;
}

.function_item_title span {
    font-family: OPPOSans-R;
    font-weight: normal;
    color: #333333;
    margin-left: 20px;
}

.function_item_left p {
    height: 270px;
    line-height: 34px;
    letter-spacing: 0px;
    color: #333333;
    margin-top: 50px;
    overflow-y: auto;
}

.function_item_right {
    width: 40%;
    height: 403px;
    overflow: hidden;
}

.function_item_right img {
    max-width: 100%;
    max-height: 100%;
}

.function_item {
    display: none;
}

.function_container .active {
    display: block;
}


/* ========== product_function end ========== */


/* ========== value start ========== */

.value {
    padding: 100px 0;
    /* background-color: #f7f7f7; */
}

.mySwiper {
    position: relative;
    padding-bottom: 80px !important;
}

.mySwiper .swiper-wrapper {
    /* padding-top: 140px; */
    /* width: 1260px; */
    padding: 140px 5px 0;
}

.mySwiper .swiper-slide {
    height: 340px;
    background-image: url(../images/bg.png);
    background-repeat: no-repeat;
    background-position: right bottom;
    position: relative;
    background-color: #fff;
    box-shadow: rgba(0, 0, 0, 0.16) 0px 1px 4px;
    /* box-shadow: 0px 10px 30px 0px rgba(128, 138, 153, 0.2); */
}

.mySwiper .swiper-slide:hover {
    background-color: #2775ff;
}

.mySwiper .swiper-slide:hover .swiper_text {
    color: #fff;
}

.swiper_text {
    margin-top: 70px;
    margin-right: 60px;
    line-height: 40px;
    width: 45%;
    max-height: 200px;
    overflow-y: auto;
}

.swiper_pic {
    position: absolute;
    width: 500px;
    height: 375px;
    left: 30px;
    bottom: 30px;
}

.swiper_controls {
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    bottom: 0;
    left: 0;
}

.swiper_controls .swiper-pagination {
    position: relative;
    width: auto !important;
    bottom: 0px !important;
    margin: 0 30px;
}

.myswiper_next,
.myswiper_prev,
.myswiper_prev_case,
.myswiper_next_case {
    outline: none;
}

.myswiper_next:hover .img_block,
.myswiper_prev:hover .img_block,
.myswiper_next_case:hover .img_block,
.myswiper_prev_case:hover .img_block {
    display: none;
}

.myswiper_next:hover .img_none,
.myswiper_prev:hover .img_none,
.myswiper_next_case:hover .img_none,
.myswiper_prev_case:hover .img_none {
    display: inline-block;
}

.swiper_controls .swiper-pagination-bullet {
    width: 10px;
    height: 10px;
    margin: 0 15px !important;
}


/* ========== value end ========== */


/* ========== case start ========== */

.case {
    padding: 100px 0 110px;
    background-color: #f7f7f7;
}

.mySwiper_case {
    margin-top: 70px;
}

.mySwiper_case .swiper-slide {
    display: flex;
    /*justify-content: space-between;*/
    padding-top: 20px;
}

.case_item {
    width: 32%;
    height: 360px;
    color: #333333;
    background-color: #f7f7f7;
    transition: all .5s;
}
.case_item + .case_item {
    margin-left: 2%;
}
.case_item_pic {
    width: 100%;
    height: 240px;
    overflow: hidden;
}

.case_item_pic img {
    width: 100%;
    height: auto;
}

.case_item_text {
    padding: 0 30px;
    margin-top: 30px;
    height: 64px;
    line-height: 32px;
    letter-spacing: 0px;
    color: #333333;
    word-break: break-all;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    /* 文本排列方向 从上到下 */
    -webkit-line-clamp: 2;
    /* 这里是超出几行省略 */
    overflow: hidden;
}

.case_item:hover {
    background-color: #1b75f3;
    transform: translateY(-20px);
}

.case_item:hover .case_item_text {
    color: #fff;
    font-weight: bold;
}

.swiper_controls_case {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 0px;
}

.swiper_controls_case .swiper-pagination_case {
    position: relative;
    width: auto !important;
    bottom: 0px !important;
    margin: 0 30px;
}

.swiper-pagination_case .swiper-pagination-bullet {
    width: 36px;
    height: 36px;
    border-radius: 4px;
    line-height: 36px;
    text-align: center;
    outline: none;
    font-size: 16px;
    color: #000000 !important;
    background-color: #ced5e0;
    opacity: 1;
}

.swiper-pagination_case .swiper-pagination-bullet-active {
    color: #fff !important;
    background-color: #1b75f3;
}


/* ========== case end ========== */

@media (max-width: 767px) {
    h6 {
        margin: 10px 0;
    }
    /* ========== product_value start ========== */
    .product_value,
    .product_function,
    .value,
    .case {
        padding: 20px 0;
    }
    .case {
        padding-bottom: 0px;
    }
    .product_value p {
        margin-top: 10px;
        line-height: 26px;
    }
    .product_value_pic {
        margin-top: 20px;
    }
    /* ========== product_value end ========== */
    /* ========== product_function start ========== */
    .function_nav li {
        width: 33%;
    }
    .function_nav li .pic {
        margin-right: 5px;
    }
    .function_item_left {
        width: 100%;
    }
    .function_container {
        margin-top: 0;
    }
    .function_item_title {
        margin-top: 15px;
        padding-bottom: 15px;
    }
    .function_item_left p {
        margin-top: 15px;
        height: auto;
        line-height: 26px;
    }
    .function_item_right {
        width: 100%;
        height: auto;
    }
    /* ========== product_function end ========== */
    /* ========== product start ========== */
    .mySwiper_mobile .mySwiper_mobile_pic {
        width: 100%;
        height: auto;
        text-align: center;
    }
    .mySwiper_mobile_text {
        line-height: 26px;
        margin-top: 15px;
    }
    /* .mySwiper_mobile {
    position: relative;
  } */
    .mySwiper_mobile_controls {
        display: flex;
        align-items: center;
        justify-content: center;
        margin-top: 15px;
        /* position: absolute;
    top: 50%;
    transform: translateY(-50%);
    left: 0; */
    }
    .mySwiper_mobile-pagination {
        position: relative;
        width: auto;
        margin: 0 10px;
        left: 0 !important;
        bottom: 0 !important;
        transform: translateX(0) !important;
        display: flex;
        justify-content: center;
    }
    .mySwiper_mobile-prev img,
    .mySwiper_mobile-next img {
        width: 10px;
    }
    .mySwiper_mobile-pagination .swiper-pagination-bullet {
        transform: scale(1) !important;
        left: 0 !important;
    }
    /* ========== product end ========== */
    /* ========== case start ========== */
    .mySwiper_case {
        margin-top: 0px;
    }
    .case_item {
        width: 100%;
        margin-bottom: 15px;
        height: auto;
    }
    .mySwiper_case .swiper-slide {
        flex-wrap: wrap;
    }
    .case_item_pic {
        height: auto;
    }
    .case_item_text {
        margin-top: 0px;
        padding: 10px;
        line-height: 26px;
        /*height: 72px;*/
    }
    .swiper_controls_case {
        margin-top: 0px;
    }
    /* ========== case end ========== */
    .public_banner {
        padding-top: 55px !important;
    }
    .function_nav {
        margin-top: 0px;
    }
}