.story {
    position: relative;
}

.story::after {
    position: absolute;
    display: block;
    content: " ";
    width: 100%;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7)
}

.story img {
    display: block;
    width: 100%;
}

.story .text {
    width: 77.7777vw;
    position: absolute;
    left: 50%;
    top: 45%;
    transform: translate(-50%, -50%);
    color: #FFFFFF;
    text-align: center;
    z-index: 1;
}

.story .text h2 {
    font-size: 3vw;
    font-weight: 900;
    margin-bottom: 1vw;
}

.story .text div {
    font-size: 1vw;
    line-height: 1.5vw;
    margin-bottom: 3vw;
}

.story .text a {
    margin: auto;
    display: inline-block;
}

.story .text a img {
    width: 96px;
}

.commitment {
    margin-top: 5vw;
}

.commitment .content {
    display: flex;
}

.commitment .content .item {
    overflow: hidden;
    position: relative;
    margin-right: 1.5vw;
    border-radius: 4px;
}

.commitment .content .item:last-child {
    margin-right: auto;
}

.commitment .content .item img {
    display: block;
    width: 100%;
}

.commitment .content .item div {
    color: #FFFFFF;
    text-align: center;
    position: absolute;
    left: 50%;
    top: 20%;
    transform: translate(-50%, -50%);
}

.commitment .content .item div h3 {
    font-size: 1.4vw;
    margin-bottom: 1vw;
}

.commitment .content .item div p {
    font-size: 0.9vw;
    color: #e1f1f1;
}

.commitment .big-item {
    position: relative;
    margin-bottom: 1.5vw;
    overflow: hidden;
    border-radius: 4px;
}

.commitment .big-item img {
    display: block;
    width: 100%;
}

.commitment .big-item div {
    color: #FFFFFF;
    text-align: center;
    position: absolute;
    left: 50%;
    top: 20%;
    transform: translate(-50%, -50%);
}

.commitment .big-item div h3 {
    font-size: 3vw;
    margin-bottom: 1vw;
}

.commitment .big-item div p {
    font-size: 0.9vw;
    color: #e1f1f1;
}

.technology {
    margin-top: 5vw;
}

.technology .content {
    text-align: center;
    display: flex;
    margin-bottom: 1.5vw;
}

.technology img {
    width: 100%;
    display: block;
}

.technology .content .item {
    overflow: hidden;
    position: relative;
    margin-right: 1.5vw;
    border-radius: 4px;
}

.technology .content .item:last-child {
    margin-right: auto;
}

.technology .content .item div {
    padding: 1.5vw;
    background-color: #fafafa;
    overflow: hidden;
}

.technology .content .item div h3 {
    font-size: 1.4vw;
    margin-bottom: 1vw;
}

.technology .content .item div p {
    color: #666;
    font-size: 0.9vw;
}

.title {
    text-align: center;
    margin-bottom: 4vw;

}

.title h2 {
    font-size: 3vw;
    margin-bottom: 1vw;
}

.title div {
    padding: 0 10vw;
    color: #666;
    font-size: 1vw;
    line-height: 1.5vw;
}

.manufacturing {
    margin-top: 5vw;
    margin-bottom: 5vw;
}

.manufacturing img {
    display: block;
    width: 100%;
}

.manufacturing .content {
    position: relative;
    overflow: hidden;
    border-radius: 4px;
}

.manufacturing .content .list {
    z-index: 10;
}

.manufacturing .content .list img {
    width: 100%;
    left: 0;
    top: 0;
    position: absolute;
    opacity: 0;
    transition: all .3s ease-in-out;
}

.manufacturing .content .list img.active {
    opacity: 1
}

.manufacturing .content .txt {
    z-index: 11;
    width: 100%;
    text-align: center;
    position: absolute;
    bottom: 0;
    color: #FFFFFF;
    display: flex;
    /* 垂直居中 */
}

.manufacturing .content .txt p {
    background-color: rgba(0, 0, 0, 0.7);
    display: block;
    justify-content: center;
    cursor: pointer;
    flex: 1;
    margin-right: 1px;
    padding: 1.5vw;
    transition: all .3s ease-in-out;
}

.manufacturing .content .txt p.active {
    background-color: rgba(0, 0, 0, 0.95);
}


.video-play {
    position: fixed;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    ;
    background: rgba(0, 0, 0, 0.8);
    z-index: 1000;
    align-items: center;
    display: none;
    align-items: center;
    justify-content: center;
}

.video-play div {
    width: 80%;
    max-width: 1800px;
    position: relative
}

.video-play div video {
    border-radius: 8px;
    border: 4px solid #c9c9c9
}

.video-play div span {
    position: absolute;
    right: 15px;
    top: 15px;
    background-color: #c9c9c9;
    border-radius: 50px;
    padding: 5px;
    font-size: 1.2vw;
    cursor: pointer;
    z-index: 10
}

.video-play div span:hover {
    background-color: #d90000;
    color: #ffffff
}

.paly-show {
    display: flex;
}

@media screen and (max-width: 1280px) {
    .story .text h2 {
        font-size: 18px;
        margin-bottom: 10px;
    }

    .story .text div {
        font-size: 12px;
        line-height: 1.6em;
        margin-bottom: 20px;
    }

    .story .text a img {
        width: 46px;
    }

    .commitment .big-item {
        margin-bottom: 0;
    }

    .commitment .big-item div {
        width: 80%;
        left: 50%;
        top: 40%;
        transform: translate(-50%, -50%);
    }

    .commitment .big-item div h3 {
        font-size: 18px;
        margin-bottom: 10px;
    }

    .commitment .big-item img {
        border-radius: 4px;
    }

    .commitment .big-item div p {
        font-size: 12px;
    }

    .commitment .content {
        display: block;
    }

    .commitment .content .item div h3 {
        font-size: 18px;
        margin-bottom: 10px;
    }

    .commitment .content .item {
        height: 45vw;
        margin-right: 0;
        margin-top: 10px;
    }

    .commitment .content .item div {
        width: 80%;
        left: 50%;
        top: 40%;
        transform: translate(-50%, -50%);
    }

    .commitment .content .item div p {
        font-size: 12px;
    }

    .commitment .content .item img {
        transform: translateY(-18%);
    }

    .title h2 {
        font-size: 18px;
        margin-bottom: 10px;
    }

    .title div {
        font-size: 12px;
        line-height: 1.6em;
    }

    .technology .content {
        display: block;
        margin-bottom: 20px;
    }

    .technology .content .item {
        margin-bottom: 10px;
    }

    .technology .content .item div h3 {
        font-size: 16px;
        margin-bottom: 10px;
    }

    .technology .content .item div p {
        font-size: 12px;
    }

    .technology .content .item div {
        padding: 15px;
    }

    .manufacturing .content {
        width: auto;
        margin: 10px;
        padding: 0;
    }

    .manufacturing .content .txt p {
        font-size: 10px;
        margin-right: 1px;
        padding: 10px;
    }
}