.index_header {
    position: relative;
    width: 100%;
    height: 800px;
    background: url(../images/index-bg1.jpg);
    background-size: cover;
    background-position: center;
    transition: background-image 1s ease-in-out;
}

.index_content {
    width: 550px;
    height: 300px;
    background-color: #00101FE3;
    position: absolute;
    top: 70%;
    left: 0;
    transform: translate(0, -50%);
    z-index: 999;
    display: flex;
    align-items: center;
    padding: 30px 50px;
    box-sizing: border-box;
    color: #fff;
}

.index_content h1 {
    font-size: 60px;
    line-height: 100px;
}

.index_about_content {
    width: 100%;
    display: flex;
    justify-content: space-between;
}

.index_about_right img {
    height: 475px;
    width: 375px;
}

.index_about {
    /* background-color: #001649; */
    padding: 50px 0;
    box-sizing: border-box;
    display: flex;
    justify-content: center;
    align-items: center;
}


.index_about_left .line {
    height: 4px;
    width: 120px;
    margin-top: 20px;
    background-color: #001649;
}

.index_about p {
    margin-top: 20px;
    /* color: #fff; */
    font-size: 18px;
    line-height: 30px;
}

.index_about_left button {
    width: 150px;
    height: 50px;
    font-size: 20px;
    border: 1px solid #00458C;
    color: #00458C;
    margin-top: 80px;
    cursor: pointer;
    background-color: transparent;
}

.index_about_left button:hover {
    color: #fff;
    background-color: #00458C;
    transition: 400ms;
}

.index_about_left {
    width: 60%;
    display: flex;
    align-items: center;
}

.index_our_Expertise_bg {
    padding: 50px 0;
    box-sizing: border-box;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #f0f0f0;
}

.index_our_Expertise_bg .line {
    height: 4px;
    width: 120px;
    margin-top: 20px;
    background-color: #001649;
}

.index_our_Expertise_bg button {
    width: 150px;
    height: 50px;
    font-size: 20px;
    border: 1px solid #00458C;
    color: #00458C;
    margin-top: 80px;
    cursor: pointer;
    background-color: transparent;
}

.index_our_Expertise_bg button:hover {
    color: #fff;
    background-color: #00458C;
    transition: 400ms;
}

.index_our_Expertise_right {
    width: 60%;
    display: flex;
    align-items: center;
}

.index_our_Expertise_left img {
    height: 475px;
    width: 375;
}

.index_our_Expertise_right p {
    margin-top: 20px;
    font-size: 18px;
    line-height: 30px;
}


.index_our_Expertise_right button {
    width: 150px;
    height: 50px;
    font-size: 20px;
    border: 1px solid #00458C;
    color: #00458C;
    margin-top: 80px;
    cursor: pointer;
    background-color: transparent;
}

.index_our_Expertise_right button:hover {
    color: #fff;
    background-color: #00458C;
    transition: 400ms;
}

.index_our_Expertise_content {
    display: flex;
    justify-content: space-between;
}


/**/
.cases_bg {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #00458C;
    padding: 40px 20px;
    box-sizing: border-box;
}

.cases_card {
    width: 590px;
    height: 250px;
    background-color: #fff;
    display: flex;
    padding: 20px;
    box-sizing: border-box;
}

.cases_card img {
    width: 50px;
    height: 50px;
}

.cases_card span {
    color: #00458C;
    font-weight: 600;
}

.cases_box {
    width: 100%;
    display: flex;
    justify-content: space-between;
}

.cases_card p {
    margin-top: 20px;
    margin-bottom: 20px;
    line-height: 25px;
}

.cases_bg h2 {
    color: #fff;
    font-size: 34px;
}

.cases_bg .line {
    height: 4px;
    width: 120px;
    margin-top: 20px;
    background-color: #fff;
}

.cases_describe {
    color: #fff;
    margin-top: 10px;
}

/**/

.read-case:hover {
    background-color: #00458C;
    color: white;
    transition: 0.3s;
}

.main_content {
    width: 1250px;
}

.what_wo_do_box {
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
}

.image-container {
    position: relative;
    width: 100%;
    height: 190px;
}

.describe-container {
    width: 100%;
    height: 140px;
    padding: 20px;
    box-sizing: border-box;
}

.image-container img {
    width: 100%;
    height: 100%;
}

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.2);
}

.overlay .title {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    text-align: center;
    font-size: 28px;
    margin: 0;
}

.what_wo_do_bg h2 {
    font-size: 34px;
    color: #00458C;

}

.what_wo_do_bg .line {
    height: 4px;
    width: 120px;
    margin-top: 20px;
    background-color: #00458C;
}

.index_commit_bg {
    width: 100%;
    padding: 50px 0;
    box-sizing: border-box;
    display: flex;
    align-items: center;
    justify-content: center;
}

.index_commit_img_box {
    width: 600px;
    height: 320px;
    /* border: 6px solid #A7C6EC; */
    box-sizing: border-box;
    position: relative;
}

.index_commit_img_box img {
    width: 100%;
    height: 308px;

}

.index_commit_img:before {
    content: "";
    position: absolute;
    margin: auto;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 3;
    background: linear-gradient(to right, rgba(255, 255, 255, 0) 0%, rgb(255, 255, 255) 100%);
}

.index_commit_box {
    display: flex;
    margin-top: 20px;
}

.index_commit_content_box {
    width: 500px;
    align-items: center;
    display: flex;
}

.index_commit_content_box p {
    line-height: 30px;
    z-index: 99;
    margin-left: -20px;
}

.index_commit_bg h2 {
    text-align: center;
}

.index_served_bg {
    background-color: #00458C;
    height: 150px;
    background-size: 1297px 996px;
    padding: 80px 0 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.index_served_content {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

.index_served_bg h2 {
    color: #fff;
    font-size: 48px;
    align-items: center;
}

.index_served_bg p {
    color: #fff;
    font-size: 18px;
    margin-top: 15px;
    width: 1000px;
    text-align: center;
    line-height: 30px;
}

@media (max-width: 800px) {
    .index_content {
        width: 80%;
        height: auto;
        top: 65%;
        padding: 25px;
    }

    .index_about_content {
        flex-direction: column;
    }

    .index_about_left {
        width: 100%;
    }

    .index_about_left button {
        margin-top: 20px;
    }

    .index_our_Expertise_content {
        flex-direction: column;
    }

    .index_our_Expertise_right {
        width: 100%;
    }

    .index_commit_box {
        flex-direction: column;
    }

    .index_commit_img:before {
        display: none;
    }

    .index_served_bg p {
        width: 100%;
    }

    .index_commit_img_box {
        width: 100%;
        height: auto;
    }
    .index_commit_img_box img {
        width: 100%;
        height: auto;
    }
    .index_commit_content_box {
        width: 100%;
    }

    .index_content h1 {
        font-size: 40px;
        line-height: normal;
    }

    .index_header {
        height: 550px;
    }

    .index_about_left .line {
        margin-top: 10px;
    }

    .index_about {
        padding: 10px;
    }

    .index_about_right img {
        height: 400px;
        width: auto;
        margin-top: 10px;
    }

    .index_our_Expertise_bg {
        padding: 10px;
    }

    .index_our_Expertise_left {
        order: 2;
    }

    .index_our_Expertise_left img {
        height: 400px;
        width: auto;
        margin-top: 10px;
    }

    .index_our_Expertise_right {
        order: 1;
    }

    .index_our_Expertise_bg .line {
        margin-top: 10px;
    }

    .index_our_Expertise_right button {
        margin-top: 20px;
    }

    .index_served_bg h2 {
        font-size: 40px;
    }

    .index_served_bg {
        background-color: #00458C;
        height: auto;
        background-size: 100% 100%;
        padding: 20px 10px;
    }

    .index_commit_bg {
        padding: 10px;
    }

    .index_commit_content_box p {
        line-height: 26px;
        z-index: 99;
        margin-left: 0px;
        margin-top: 10px;
    }

}