.container {
    width: 80%;
    max-width: 1080px;
    margin: 0 auto;
    position: relative;
}

.item_box {
    padding: 10px 0 0;
}



.time {
    padding-bottom: 1em;
    color: #666;
    line-height: 1.7em;
    font-weight: 500;
}

.item-img {
    display: block;
    width: 100%;
    margin: 0 auto;
}

.item-text {
    padding: 50px 1em;
    color: #666;
    line-height: 1.7em;
    font-weight: 500;
    font-size: 18px;
}

.footer {
    width: 100%;
    height: 60px;
    text-align: center;
    line-height: 60px;
    background-color: #00a4e3;
    color: #ffffff;
}

@media screen and (min-width: 900px) {
    .top-header {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 60px;
        background-color: #00a4e3;
        color: #ffffff;
        z-index: 99;
    }

    .top-header-container {
        width: 80%;
        max-width: 1080px;
        margin: 0 auto;
        height: 60px;
        line-height: 60px;
    }

    .top-header-left {
        float: left;
    }

    .top-header-left h1 {
        text-transform: uppercase;
        font-size: 18px;
        line-height: 60px;
        font-weight: 500;
        color: #fff;
    }

    .top-header-right {
        float: right;
        font-size: 16px;
    }

    .header {
        position: absolute;
        width: 100%;
        height: 80px;
        top: 70px;
        left: 0;
        z-index: 99;
    }

    .header2 {
        display: none;
    }

    .header-container {
        width: 80%;
        max-width: 1080px;
        margin: 0 auto;
        height: 80px;
    }

    .header-left {
        float: left;
    }

    .logo {
        display: block;
        width: 150px;
        height: 50px;
        margin-top: 15px;
    }

    .logo img {
        width: 150px;
        height: 50px;
    }

    .header-right {
        float: right;
    }

    .tab-container {
        height: 80px;
        line-height: 80px;
    }

    .tab-item {
        display: inline-block;
        font-size: 18px;
        padding-right: 25px;
        word-wrap: break-word;
        color: #00a4e3;
        transition: color 1s ease;
        cursor: pointer;

    }

    .tab-item:hover {
        color: #1d7894;
    }

    .tab-item a {
        padding-bottom: 33px;
        font-weight: 400;
    }

    .news-img {
        width: 80%;
        max-width: 1080px;
        margin: 0 auto;
        position: relative;
    }

    .news-img img {
        width: 100%;
        height: auto;
    }

    .item_box h1 {
        font-size: 40px;
        width: 100%;
        text-align: center;
        margin-bottom: 30px;
    }

}

@media screen and (max-width: 900px) {
    .top-header {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 60px;
        background-color: #00a4e3;
        color: #ffffff;
        z-index: 99;
    }

    .top-header-container {
        width: 80%;
        max-width: 1080px;
        margin: 0 auto;
        height: 60px;
        line-height: 60px;
    }

    .top-header-left {
        width: 100%;
    }

    .top-header-left h1 {
        text-align: center;
        text-transform: uppercase;
        font-size: 18px;
        line-height: 60px;
        font-weight: 500;
        color: #fff;
    }

    .top-header-right {
        display: none;
    }

    .header {
        display: none;
    }

    .header2 {
        position: absolute;
        width: 100%;
        height: 40px;
        top: 70px;
        left: 0;
        z-index: 99;
    }

    .header-container {
        width: 80%;
        margin: 0 auto;
        height: 40px;
    }

    .header-left {
        float: left;
    }

    .logo {
        display: block;
        width: 150px;
        height: auto;
        margin-top: 2px;
    }

    .logo img {
        width: 100px;
        height: auto;
    }

    .header-right {
        float: right;
    }

    .menu {
        display: block;
        width: 25px;
        height: 25px;
        margin: 25px 20px;
        cursor: pointer;
    }

    .menu-container {
        float: left;
        width: 100%;
        height: 0;
        overflow: hidden;
        transition: all 0.5s ease-in-out;

    }

    .tab-container {
        float: left;
        width: 100%;
        border-top: 3px solid #00a4e3;
        box-shadow: 0 2px 5px rgba(0, 0, 0, .1);
        padding: 5%;
    }

    .tab-items {
        display: block;
        font-size: 18px;
        word-wrap: break-word;
        color: #00a4e3;
        cursor: pointer;
        height: 40px;
        line-height: 40px;
    }

    .tab-items:hover {
        color: #1d7894;
        background-color: rgba(0, 0, 0, .1);
    }

    .tab-items a {
        font-weight: 600;
    }

    .video-container {
        margin-top: 60px;
        width: 100%;
    }

    .video-container video {
        width: 100%;
        height: calc(100vh - 80px);
        object-fit: cover;
    }

    .news-img {
        width: 100%;
        margin: 0px auto;
        margin-top: 100px;
    }

    .news-img img {
        display: block;
        width: 100%;
        padding: 50px 0;
    }

    .news-container {
        margin-top: 20px;
    }

    .item_box h1 {
        font-size: 27px;
        width: 100%;
        text-align: center;
        margin-bottom: 20px;
    }
}