:root {
  --primary-color: #00D7BD;
  --primary-color-rgb: 0, 215, 189;
  --second-color: #09E5D8;
  --circle-color: #2BD1F5;
}


.index .section_kv{
    position: relative;
}

.index .section_kv h1.kv_title{
    position: absolute;
    top: 50%;  
    right: 0;   
    left: 0;    
    z-index: 9;
    text-align: center;
    transform: translateY(-100%);
    color: #fff;
    filter: drop-shadow(0px 0px 8px rgba(0, 28, 61, 0.5)) drop-shadow(0px 0 40px rgba(0, 28, 61, 0.7)) ;
}


.index .kv_content{
    position: relative;
    overflow: hidden;
}

.index .kv_content .swiper-wrapper{
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0; 
    bottom: 0;  
    left: 0;    
    right: 0;   
    margin: auto;
    transition-timing-function: ease-in-out;
}

.index .kv_content .swiper-wrapper img{
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.index .kv_content::after{
    content:"";
    display: block; 
    position: relative;
    width:  100%;
    height: 0;
    padding-bottom: 46.875%;
    z-index: 2;
}


.index .kv_content .slider_pagination {
    position: absolute;
    top: 50% !important; 
    bottom: initial !important;
    right: 20px;
    left: auto !important;
    width: 11px !important;
    text-align: center;
    z-index: 21;
}


.index .kv_content .slider_pagination .swiper-pagination-bullet {
    width: 0.5rem;
    height: 1.4375rem;
    display: block;
    border-radius: 10px;
    background: #fff;
    transition: all 0.3s;
    opacity: 1;
}

.index .kv_content .slider_pagination .swiper-pagination-bullet ~ .swiper-pagination-bullet{
    margin-top: 0.7rem;
}

.index .kv_content .slider_pagination .swiper-pagination-bullet-active {
    background: var(--primary-color);
    height: 3rem;
    opacity: 1;
}

.index .kv_tabs{
    position: absolute;
    display: flex;
    display: -ms-flexbox;
    align-items: center;
    bottom: 0; 
    left: 0;
    right: 0;   
    margin: auto;
    margin-bottom: 1.875rem;
    color: #fff;
    z-index:  9;
}

.index .kv_tabs .tabs_btn{
    display: flex;
    display: -ms-flexbox;
    align-items: center;
    justify-content: center;
    width:  30%;
    cursor: pointer;
    text-align: left;
    transition: color ease .3s
}

.index .kv_tabs .tabs_btn .icon_img.is-active{
    display: none;  
}

.index .kv_tabs .tabs_btn ~ .tabs_btn::before{
    position: absolute;
    content:"";
    display: block;
    top: 0; 
    bottom: 0;   
    left: 0;   
    margin: auto;
    width:  1px;
    height: 3.75rem;
    background: #C0C0C0;
}

.index .kv_tabs .tabs_btn .btn_icon{
    margin-right: 1.25rem;
    width:  40%;
    max-width: 120px;
}

.index .kv_tabs .tabs_btn .btn_icon img{
    width:  100%;
}

.index .kv_tabs .tabs_btn .main_title{
    font-weight: 500;
    transition: all ease .3s
}

.index .kv_tabs .tabs_btn .sub_title{
    color: var(--primary-color);
    letter-spacing: 0.1em;
}

.index .kv_tabs .tabs_btn.swiper-slide-thumb-active {
     color: var(--primary-color);
}

.kv_tabs .tabs_btn.swiper-slide-thumb-active .icon_img{
    display: none;  
}

.index .kv_tabs .tabs_btn.swiper-slide-thumb-active .icon_img.is-active{
    display: block; 
}

.index .section_about {
    position: relative;
    display: flex;
    display: -ms-flexbox;
    align-items: stretch;
    filter: drop-shadow(0px 4px 10px rgba(0, 0, 0, 0.25));
    z-index: 2;
}

.index .section_about .content{
    position: relative;
    padding: 5% 0;
    display: flex;
    display: -ms-flexbox;
    align-items: center;
}

.index section .content_title{
    margin-bottom: 1.875rem;
}

.index section .content_title .sub_title{
    margin-bottom: 0.2em;
    color: var(--primary-color);
}

.index .section_about .content_inside{
    position: relative;
    display: flex;
    display: -ms-flexbox;
    justify-content: center;
    align-items: center;
    text-align: center;
    width: 100%;
    height: 100%;
    z-index: 2;
}

/*.content_about .content_inside{
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    margin: auto;
}*/

.index .content_about .content_inside{
    color: #fff;
}

.index .content_about .content_inside .info{
    text-align: left;
    line-height: 1.8;
    letter-spacing: 0.03em;
}

.index .content_about::before{
    content: "";
    display: block;
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    bottom: 0;
    margin: auto;
    z-index: 0;
    background: linear-gradient(180deg, rgba(0, 40, 87, 0.8) 43.94%, rgba(0, 23, 53, 0.2) 100%);
}

.index .content_about .bg{
    position: absolute;
    top: 0;
    bottom: 0;
    margin: auto;
    z-index: -1;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.index .content_about .bg img{
    width: 100%;
    height: 100%;
    object-fit: cover;
}


.index .content_media{
    background: #F7F7F7;
}


.index .section_project{
    position: relative;
    padding: 5.6rem 0 6.25rem 0;
    z-index: 0;
    overflow: hidden;
    background: linear-gradient(180deg, #FFF 0%, #F7F7F7 27.10%, #F7F7F7 82.48%, #E5E5E5 100%);
}

.index .section_project .row{
    justify-content: center;
}

.index .section_project .content_title{
    text-align: center;
}

.index .section_project .swiper_project{
    padding-bottom: 1rem;
}


.index .section_project .item_project{
    position: relative;
    display: block;
    border-radius: 0.625rem;
    overflow: hidden;
    box-shadow: 0px 4px 10px 0px rgba(0, 0, 0, 0.25);
}

.index .section_project .item_project .item_title{
    position: absolute;
    display: flex;
    display: -ms-flexbox;
    justify-content: space-between;
    align-items: center;
    padding: 1.875rem 1.5625rem 1.875rem 1.875rem;
    box-sizing: border-box;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 2;
    color: #fff;
}

.index .section_project .item_project .item_title .sub_title{
    color: var(--primary-color);
    letter-spacing: 0.1em;
}

.index .section_project .item_project::after,
.index .section_project .item_project::before{
    content:"";
    display: block;
    z-index: 1;
}

.section_project .item_project::after{
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 131%;
    background: linear-gradient(180deg, rgba(0, 46, 99, 0.00) 57.48%, rgba(0, 46, 99, 0.80) 81.96%, #002E63 100%);
}

.section_project .item_project::before{
    width: 100%;
    height: 100%;
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0;
    margin: 0 auto;
    height: 80%;
    background: linear-gradient(180deg, rgba(0, 46, 99, 0.00) 0%,  #002E63 100%);
    transition: all ease .3s;
    backdrop-filter: blur(4px);
}


.index .section_project .item_project img.project_pic{
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    margin: auto;
    width: 100%;
    height: 100%;
}

.index .section_project .item_project .btn_arrow{
    margin-left: -8%;
}

.index .section_project  a.btn_more{
    margin-top: 3rem;
}

.index .section_project .circle{
    content:"";
    display: block;
    position: absolute;
    border: 1px solid var(--circle-color);
    border-radius: 100%;
    z-index: -1;
    pointer-events: none;
}

.index .section_project .circle::before{
    position: absolute;
    content:"";
    display: block;
    width: 1.25rem;
    height: 1.25rem;
    margin: auto;
    border-radius: 100%;
    background: var(--second-color);
    box-shadow: 0px 0px 10px 0px var(--second-color);
}

.index .section_project .circle:nth-of-type(1){
    right: 9.666%;
    top: 0;
    width: 57.29%;
    height: 0;
    padding-bottom: 57.29%;
    transform: translateY(-44%) rotate(356deg);
    animation: circle-rotate1 8s linear forwards infinite;
}

.index .section_project .circle:nth-of-type(1)::before{
    left: 0;
    top: 0;
    bottom: 0;
    transform: translateX(-50%);
}

.index .section_project .circle:nth-of-type(2){
    left: 0;
    width: 55.6%;
    height: 0;
    padding-bottom: 55.6%;
    bottom: 0;
    transform: translate(-6.93%,61.253%) rotate(324deg);
    animation: circle-rotate2 8s linear both infinite;
}

.index .section_project .circle:nth-of-type(2)::before{
    right: 0;
    top: 0;
    bottom: 0;
    transform: translateX(50%);
}



@media screen and (max-width:767px) {
    .index h1 p{
        transform: scale(0.9);
    }

    .index .section_kv h1.kv_title p.main_title{
        margin-right: -0.3em;
    }

    .index .kv_content::after{
        padding-bottom: 88vh;
    }

    .index .kv_content::after{
        width: 220%;
        transform: translateX(-25%);
        background: radial-gradient(17.68% 19.65% at 50% 45%, rgba(0, 57, 122, 0.2) 0%, rgba(0, 58, 126, 0) 100%), linear-gradient(179.32deg, rgba(218, 235, 255, 0.4) 0.96%, rgba(115, 169, 232, 0) 43.74%, rgba(18, 104, 204, 0) 62.24%, rgba(0, 66, 144, 0.45) 82.13%, rgba(0, 64, 140, 0.85) 99.8%);
    }

    .index .kv_content .slider_pagination{
        transform: translateY(-92%) scale(0.8);
    }

    .index .kv_tabs{
        width:  95%;
    }

    .index .kv_tabs .tabs_btn{
        text-align: center;
        flex-direction: column;
        align-items: center;
    }

    .index .kv_tabs .tabs_btn .btn_icon{
        width:  55%;
        margin: auto;
    }

    .index .kv_tabs .tabs_btn h3 p.main_title{
        letter-spacing: 0.06em;
        font-size: 1.4rem;
    }

    .index .section_about {
        flex-direction: column;
    }

    .index .section_about .content_inside .title{
        margin-bottom: 1.5rem;
    }

    .index .section_about .content{
        width: 100%;
        padding: 13% 0;
    }

    .index .section_about .content_about{
        padding: 20% 0;
    }

    .index .content_about .content_inside .container{
        width: 80%;
    }

    .index .content_about .content_inside .container .info .main_title{
        text-align: justify;
    }

    .index .section_project .container{
        width: 100%;
    }

    .index .section_project .slick_project{
        position: relative;
    }

    .index .section_project .slick_project .slick-slide{
        padding-bottom: 1rem;
    }

    .index .section_project .slick-initialized .slick-slide{
        margin: 0.5rem;
    }

    .index .section_project .slick_project::after,
    .index .section_project .slick_project::before{
        content:"";
        display: block;
        position: absolute;
        top: 0;
        bottom: 0;
        margin: auto;
        width: 20%;
        height: 96%;
        background: linear-gradient(270deg, #F7F7F7 0%, rgba(247, 247, 247, 0.00) 100%);
        z-index: 2;
    }

    .index .section_project .slick_project::after{
        left: 0;
        transform: rotate(180deg);
    }
    .index .section_project .slick_project::before{
        right: 0;
    }

    .index .section_project .slick-arrow{
        content:" ";
        position: absolute;
        z-index: 3;
        top: 0;
        bottom: 0;
        margin: auto;
        color: transparent;
    }

    .index .section_project .slick-arrow::before{
        content:"";
        display: block;
        width: 2.5rem;
        height: 2.5rem;
        background: url("../images/btn_slide.png");
        background-repeat: no-repeat;
        background-size: 100%;
    }

    .index .section_project .slick-arrow.slick-prev{
        left: 18.5%;
    }

    .index .section_project .slick-arrow.slick-prev::before{
        transform: scaleX(-1);
    }

    .index .section_project .slick-arrow.slick-next{
        right: 18.5%;
    }

    .index .section_project .item_project .item_title{
        padding: 1rem 0.8rem 1rem 1rem;
    }

    .index .section_project .circle::before{
        width: 1rem;
        height: 1rem;
    }

    .index .section_project .circle:nth-of-type(1){
        right: -5%;
        top: 0;
        width: 100%;
        height: 0;
        padding-bottom: 100%;
        transform: translateY(-35%) rotate(342deg);
    }

    .index .section_project .circle:nth-of-type(2){
        width: 95%;
        padding-bottom: 95%;
        transform: translate(-15%,55%) rotate(288deg);
    }

    @keyframes circle-rotate1 {
        to{
            transform: translateY(-35%) rotate(-18deg);
        }
    }

    @keyframes circle-rotate2 {
        to{
            transform: translate(-15%,55%) rotate(-72deg);
        }
    }

}

@media screen and (min-width:768px) {
    .index .section_kv h1.kv_title p.main_title{
        margin-right: -0.2em;
    }
    .index .kv_content::after{
        padding-bottom: 100vh;
    }

    .index .kv_tabs{
        width: 95%;
    }

    .index .kv_content::after{
        background: radial-gradient(17.68% 19.65% at 50% 50%, rgba(0, 57, 122, 0.25) 0%, rgba(0, 58, 126, 0) 100%), linear-gradient(179.32deg, rgba(218, 235, 255, 0.4) 0.96%, rgba(115, 169, 232, 0) 43.74%, rgba(18, 104, 204, 0) 60%, rgba(0, 66, 144, 0.45) 80%, rgba(0, 64, 140, 0.85) 96%);
    }

    .index .section_kv h1.kv_title{
        top: 51%;
    }

    .index .kv_content .slider_pagination{
        transform: translateY(-90%);
    }

    .index .section_about {
        flex-direction: row;
    }

    .index .section_about .content{
        width: 50%;
    }

    .index .slick_project .slide{
        margin: 1.24rem;
    }

    .index .section_project .item_project .item_title{
        padding: 1.1rem 0.9rem 1.1rem 1.1rem;
    }

    .index .section_project .slick_project{
        width: 100%;
        margin: auto;
    }

    .index .section_project .circle:nth-of-type(1){
        transform: translateY(-44%) rotate(356deg);
    }

    .index .section_project .circle:nth-of-type(2){
        transform: translate(-6.93%,61.253%) rotate(324deg);
    }

    @keyframes circle-rotate1 {
        to{
            transform: translateY(-44%) rotate(-4deg);
        }
    }

    @keyframes circle-rotate2 {
        to{
            transform: translate(-6.93%,61.253%) rotate(-36deg);
        }
    }



}

@media screen and (min-width:992px) {
    .index .kv_tabs{
        width: 75%;
    }

    .index .section_about .container {
        width: 80%;
    }

    .index .section_project .item_project .item_title{
        padding: 1.875rem 1.5625rem 1.875rem 1.875rem;
    }

    .index .section_project .slick_project{
        width: 95%;
        margin: auto;
    }
}

@media screen and (min-width:1200px) {
    .index .kv_tabs{
        width: 60%;
    }

    .index .section_about .container {
        width: 85%;
    }
}

@media screen and (min-width:1440px) {
    .index .section_kv h1.kv_title p.main_title{
        margin-right: -0.3em;
    }

    .index .kv_tabs{
        width: 51%;
    }

    .index .kv_content .slider_pagination{
        transform: translateY(-100%);
    }

    .index .section_about .container {
        width: 82%;
    }

    .index .section_about .content{
        min-height: 350px;    
    }

    .index .section_project .slick_project{
        width: 83.33%;
        margin: auto;
    }

}


@media (hover:hover){
    .index .kv_tabs .tabs_btn:hover .main_title{
        color: var(--primary-color);
    }

    .index .section_project .item_project:hover::before{
        height: 100%;
        opacity: 1;
        backdrop-filter: blur(4px);
        -webkit-backdrop-filter: blur(4px);
    }
}