@media only screen and (max-width: 1190px) {
    .first_screen {
        justify-content: space-around;
        width: 100%;
        height: auto;
        padding: 50px 0;
    }

    .fs_text {
        width: 50%;
    }

    .fs_title {
        font-size: 36px;
    }

    .fs_sub_title {
        font-size: 20px;
    }

    .fs_image {
        width: 40%;
        height: auto;
        padding-bottom: 40%;
    }
    
    .all_bg a {
        width: calc(50% - 15px);
        height: auto;
    }

    .ae_block {
        width: 100%;
        height: auto;
        padding: 20% 0;
    }

    .ade_block {
        width: calc(50% - 15px);
    }
    
    .ade_line {
        height: 1px;
        width: 100%;
    }

    .ade_image {
        width: 40px;
        height: 40px;
    }

    .ade_content {
        width: 100%;
        padding: 20px 0;
    }

    .ade_content button{
        width: 100%;
    }
    
    .ade_btn_bg a {
        width: 100%;
    }

    .ade_btn_bg {
        display: flex;
        flex-wrap: wrap;
        width: 100%;
    }

    .ade_block a {
        margin-top: 5px;
    }

    .ade_block a:first-child {
        margin-top: 0px;
    }

    .ade_text {
        height: 80px;
    }

    .is_bg {
        width: calc(100% - 30px);
        flex-direction: column;
    }

    .big_video {
        width: calc(100% - 30px);
        height: 510px;
    }

    #video-placeholder {
        height: 100%;
    }

    .small_video_bg {
        display: flex;
        justify-content: space-around;
        width: 100%;
        height: auto;
    }

    .small_video {
        width: 33%;
        height: auto;
        padding-bottom: 20%;
        margin: 0;
    }

    .orange_title {
        margin-bottom: 0;
    }

    .rn_bg {
        width: 100%;
    }

    .rn_content {
        width: 70%;
        margin: auto;
        margin-top: 10px;
    }

    .rn_content:first-child {
        margin-top: 0;
    }

    .rn_bg .space_bottom {
        margin-bottom: 0;
    }

    .cdn_bg {
        padding: 10px 0;
    }

    .cdn_content {
        width: calc(100% - 60px);
        order: 1;
    }

    .cdn_text {
        width: 100%;
    }

    .cdn_content_block {
        justify-content: center;
        flex-wrap: wrap;
        width: 100%;
    }

    .move_cdn_icon {
        width: 50px;
        height: 50px;
        background-color: #ffffff;
        background-size: 60%;
        border-radius: 10px;
        margin: 0 5px;
        margin-top: 10px;
    }

    .move_cdn_icon:hover {
        opacity: 1;
    }
 
    .move_cdn_left {
        order: 2;
    }

    .move_cdn_right {
        order: 3;
    }

    .bn_bg {
        width: 100%;
        flex-direction: column;
        align-items: center;
        margin-bottom: 0;
    }

    .bn_block {
        width: 70%;
        margin-top: 30px;
        box-shadow: 0px 0px 4px rgba(0, 0, 0, 0.11);
        padding: 20px 0;
        border-radius: 10px;
    }

    .bn_block:first-child {
        margin-top: 0;
    }

    .bn_title {
        flex-direction: column;
    }

    .bn_line {
        width: 100%;
        margin: 30px 0;
        background-color: #f5f5f5;
    }

    .bn_text {
        padding: 0 10px;
        text-align: center;
        margin: 0;
    }

    .bn_top_title {
        margin-bottom: 30px;
    }

    .cc_bg {
        width: 100%;
        flex-direction: column;
    }

    .cc_title {
        display: none;
    }

    .cc_block {
        width: 60%;
        text-align: center;
    }

    .cc_center {
        margin-top: 30px;
    }

    .cc_block input {
        width: calc(100% - 20px);
    }

    .cc_line_input input {
        width: 100%;
    }
}

@media only screen and (max-width: 800px) {
    .big_video {
        height: 410px;
    }
}

@media only screen and (max-width: 730px) {
    .is_bg {
        width: calc(100% - 10px);
        flex-direction: column;
        padding: 0;
    }

    .big_video {
        width: calc(100% - 10px);
        height: 210px;
        margin: 5px 0;
    }

    .all_bg a {
        width: 100%;
        margin-top: 10px;
    }

    .all_bg a:first-child {
        margin-top: 0px;
    }

    .ade_block {
        width: 100%;
        margin-top: 20px;
    }

    .ade_text {
        height: auto;
        margin-bottom: 30px;
    }

    .ade_block:first-child {
        margin-top: 0px;
    }

    .fs_text {
        width: 90%;
        text-align: center;
    }

    .fs_image {
        display: none;
    }

    .space_bottom {
        margin-bottom: 0;
    }

    .ade_block {
        width: 100%;
    }

    .rn_content {
        width: 100%;
    }

    .rn_icon_text {
        width: calc(100% - 70px);
    }

    .bn_block {
        width: 100%;
    }

    .cc_block {
        width: 100%;
    }

}