/* cover */
.cover {
    position: relative;
    height: 950px;
    width: 100%;
    z-index: 2;
    background-color: #000000;

}

.cover .w {
    height: 100%;
}

.cover_bd {
    height: 100%;
    width: 100%;
    overflow: hidden;
    display: flex;
    justify-self: center;
    align-items: center;
}

.bg_1 {
    background: url(../images/cover-1.jpg) no-repeat;
    background-size: cover;
    background-position: center center;
}

.bg_2 {
    background: url(../images/cover-2.jpg) no-repeat;
    background-size: cover;
    background-position: center center;
}

.bg_3 {
    background: url(../images/cover-3.jpg) no-repeat;
    background-size: cover;
    background-position: center center;
}


.cover_bd_content_1 p:nth-child(1) {
    font-size: 14px;
    color: #ffffff;
    font-weight: 700;
    letter-spacing: 3px;
    margin-bottom: 20px;
    font-family: 'Jost', sans-serif;
}

.cover_bd_content_1 p:nth-child(2) {
    font-size: 72px;
    font-weight: 700;
    margin-bottom: 20px;
    font-family: 'Jost', sans-serif;
    color: #ffffff;
}

.cover_bd_content_1 p:nth-child(3) {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 20px;
    color: #ffffff;
    font-family: 'Jost', sans-serif;
}

.cover_bd_content_1 p:nth-child(4) {
    font-size: 16px;
    color: #ffffff;
    font-weight: 400;
    margin-bottom: 60px;
    font-family: 'Jost', sans-serif
}

.cover_bd_content_1_a {
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
    column-gap: 20px;
}

.cover_bd_content_1_a a:nth-child(1) {
    padding: 18px 30px;
    font-size: 12px;
    background-color: #e18731;
    color: #ffffff;
}

.cover_bd_content_1_a a:nth-child(2) {
    padding: 14px 26px;
    font-size: 12px;
    border: 4px solid #ffffff;
    color: #ffffff;

}


.cover_bd_content_1 {
    width: 100%;
    text-align: center;
}

@keyframes floatAnimation {
    0% {
        transform: translateX(0);
    }

    50% {
        transform: translateX(30px);
    }

    100% {
        transform: translateX(0);
    }
}

@keyframes floatAnimationUp {
    0% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(20px);
    }

    100% {
        transform: translateY(0);
    }
}




@media (max-width: 1024px) {

    .cover_bd_content_1 p:nth-child(4) {
        font-size: 16px;
        color: #ffffff;
        font-weight: 400;
        margin-bottom: 60px;
    }

}


@media (max-width: 820px) {

    .cover_bd_content_1 p:nth-child(2) {
        font-size: 72px;
        font-weight: 700;

        margin-bottom: 20px;
    }

    .cover_bd_content_1 p:nth-child(4) {
        font-size: 16px;
        color: #ffffff;
        font-weight: 400;
        margin-bottom: 60px;
    }

}

@media (max-width: 768px) {

    .cover_bd_content_1 p:nth-child(2) {
        font-size: 56px;
        font-weight: 700;

        margin-bottom: 20px;
    }

    .cover_bd_content_1 p:nth-child(4) {
        font-size: 16px;
        color: #ffffff;
        font-weight: 400;
        margin-bottom: 60px;
    }

}

@media (max-width: 576px) {

    .cover {
        position: relative;
        height: 100vh;
        width: 100%;

        background-size: cover;
        background-position: center center;
        z-index: 2;

    }


    .cover_bd_content_1 p:nth-child(1) {
        font-size: 14px;
        color: #ffffff;

        font-weight: 700;
        letter-spacing: 3px;
        margin-bottom: 20px;
        text-align: center;
    }

    .cover_bd_content_1 p:nth-child(2) {
        font-size: 36px;
        font-weight: 700;

        margin-bottom: 20px;
        text-align: center;
    }

    .cover_bd_content_1 p:nth-child(3) {
        font-size: 24px;
        font-weight: 700;
        margin-bottom: 20px;
        text-align: center;
    }

    .cover_bd_content_1 p:nth-child(4) {
        font-size: 16px;
        color: #ffffff;
        font-weight: 400;
        margin-bottom: 30px;
        width: 100%;
        text-align: center;
    }

    .cover_bd_content_1_a a:nth-child(1) {
        padding: 18px 30px;
        font-size: 12px;
        background-color: #e18731;
        color: #ffffff;

    }

    .cover_bd_content_1_a a:nth-child(2) {
        padding: 14px 26px;
        font-size: 12px;
        border: 4px solid #ffffff;
        color: #ffffff;
        display: none;
    }

    .cover_bd_content_1_a {
        display: flex;
        align-items: center;
        column-gap: 0px;
        justify-content: center;

    }
}

.swiper {
    width: 100%;
    height: 100%;
}

.swiper .swiper-pagination,
.swiper .swiper-button-prev,
.swiper .swiper-button-next,
.swiper .swiper-scrollbar {
    opacity: 0;
}

/* Award */

.float-left {
    float: left;
}

.about-us-section {
    background-color: #fff;
}

.about-us-section .text {
    width: 55%;
}

.about-us-section .text a {
    width: 210px;
    line-height: 50px;
    color: #e18731;
    text-align: center;
    font-size: 18px;
    padding-bottom: 5px;
    border-bottom: 1px solid #e18731;
}

.about-us-section .img-box {
    width: 45%;
    text-align: right;
    position: relative;

}


.about-us-section .img-box img {
    margin: 0 auto;
    position: relative;
    z-index: 2;
    /* 图片的z-index设置为2，位于边框之上 */
    padding-top: 80px;
}

.about-us-section.style-two .text {
    margin: 85px 0 0 0;
}



.theme-title {
    position: relative;
    padding: 14px 0 0 19px;
}

.about-main-content .theme-title h5 {
    font-size: 32px;
    color: #e18731;
    font-family: 'Space Grotesk', sans-serif;
}

.about-main-content .theme-title::before {
    content: '';
    width: 26px;
    height: 26px;
    position: absolute;
    top: 0;
    left: 0;
    border-left: 2px solid #e18731;
    border-top: 2px solid #e18731;
}

.about-main-content .theme-title h3 {
    font-size: 90px;
    font-family: 'Space Grotesk', sans-serif;
    color: #e18731;
}

.about-us-section .about-main-content .text p {
    margin: 25px 0 20px 0;
    font-size: 17px;
    line-height: 30px;
}

@media (min-width: 992px) and (max-width: 1199px) {
    .about-us-section .about-main-content .img-box::before {
        border-right: 440px solid transparent;
    }
}




/*===================== Our Project =====================*/
.project-image {
    background-color: #fff;
    padding: 100px 0;
}

.wrapper div {
    display: flex;
    justify-content: center;
}

.wrapper .items {
    display: flex;
    max-width: 720px;
    width: 100%;
    justify-content: space-between;
}

.project-image .items span {
    padding: 7px 25px;
    font-size: 18px;
    font-weight: 500;
    cursor: pointer;
    color: #e18731;
    border-radius: 50px;
    border: 2px solid #e18731;
    transition: all 0.3s ease;
}

.project-image .items span.active,
.project-image .items span:hover {
    color: #fff;
    background: #e18731;
}

.project-image .gallery {
    display: flex;
    flex-wrap: wrap;
    margin-top: 30px;
}

.project-image .gallery .image {
    width: calc(100% / 4);
    padding: 10px;
    display: block;
    cursor: pointer;
    overflow: hidden;
    margin-bottom: 20px;
}

.project-image .gallery .image span {
    width: 100%;
    overflow: hidden;
}


.project-image .gallery .image img {
    width: 100%;
    vertical-align: middle;
    transition: all 0.3s ease;
    border: 1px solid #e18731;
}

.project-image .gallery .image:hover img {
    transform: scale(1.05);
}

.project-image .gallery .image.hide {
    display: none;
}

.project-image .gallery .image.show {
    animation: animate 0.4s ease;
}


@keyframes animate {
    0% {
        transform: scale(0.5);
    }

    100% {
        transform: scale(1);
    }
}

.project-image .gallery .image .text {
    display: block;
    padding: 10px;
    border: 1px solid #e18731;
    border-top: none;
    text-align: center;
}

.project-image .gallery .image .text h4 {
    font-size: 18px;
    font-weight: 600;
    margin: 10px 0;
}

.project-image .gallery .image .text p {
    font-size: 14px;
    margin: 10px 0;
}

.project-image .preview-box {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    background: #fff;
    max-width: 700px;
    width: 100%;
    z-index: 5;
    opacity: 0;
    pointer-events: none;
    border-radius: 3px;
    padding: 0 5px 5px 5px;
    box-shadow: 0px 0px 15px rgba(0, 0, 0, 0.2);
}

.project-image .preview-box.show {
    opacity: 1;
    pointer-events: auto;
    transform: translate(-50%, -50%) scale(1);
    transition: all 0.3s ease;
}

.project-image .preview-box .details {
    padding: 13px 15px 13px 10px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.project-image .details .title {
    display: flex;
    font-size: 18px;
    font-weight: 400;
}

.project-image .details .title p {
    font-weight: 500;
    margin-left: 5px;
}

.project-image .details .icon {
    color: #e18731;
    font-style: 22px;
    cursor: pointer;
}

.project-image .preview-box .image-box {
    width: 100%;
    display: flex;
}

.project-image .image-box img {
    width: 50%;
    border-radius: 0 0 3px 3px;
    margin: 0 auto;
}

.project-image .shadow {
    position: fixed;
    left: 0;
    top: 0;
    height: 100%;
    width: 100%;
    z-index: 2;
    display: none;
    background: rgba(0, 0, 0, 0.4);
}

.shadow.show {
    display: block;
}

@media (max-width: 1200px) {
    .project-image .gallery .image {
        width: calc(100% / 3);
    }
}

@media (max-width: 800px) {
    .project-image .gallery .image {
        width: calc(100% / 2);
    }
}

@media (max-width: 700px) {
    .wrapper div .items {
        max-width: 600px;
    }

    .project-image div .items span {
        padding: 7px 15px;
    }
}

@media (max-width: 600px) {

    .project-image .wrapper div .items {
        flex-wrap: wrap;
        justify-content: center;
    }

    .project-image .items span {
        margin: 5px;
    }

    .project-image .gallery .image {
        width: 100%;
    }
}

@media (max-width: 991px) {
    .project-image .items span {
        font-size: 16px;
    }

    .project-image .details .title {
        font-size: 14px;
    }
}


/* Certification */
.cert-section {
    background-color: #fff;
    padding-top: 70px ;
}

.cert-section .cert-container {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    column-gap: 30px;
}

.cert-1,
.cert-2 {
    padding-right: 30px;
    border-right: 3px solid #e18731;
}

.cert-container h5 {
    padding: 10px 0;
    font-size: 18px;
    color: #e18731;
    font-weight: 500;
}

.cert-container p {
    padding: 0 0 10px 0;
}

.cert-container strong {
    font-weight: bold;
}

@media (max-width: 991px) {
    .cert-section .cert-container {
        display: grid;
        grid-template-columns: 1fr 1fr;
        column-gap: 30px;
        justify-content: center;
        /* 水平居中对齐 */
        align-items: center;
        /* 垂直居中对齐 */
        text-align: center;
        /* 如果内部文本也需要水平居中对齐 */
    }

    .cert-3 {
        margin-top: 70px;
    }
}

@media (max-width: 600px) {
    .cert-section .cert-container {
        display: grid;
        grid-template-columns: 1fr;
        column-gap: 30px;
        justify-content: center;
        /* 水平居中对齐 */
        align-items: center;
        /* 垂直居中对齐 */
        text-align: center;
        /* 如果内部文本也需要水平居中对齐 */
    }

    .cert-1,
    .cert-2 {
        padding-right: 0px;
        border-right: none;
    }

    .cert-2,
    .cert-3 {
        margin-top: 70px;
    }
}