/* 关于我们导航菜单样式 */
.about-nav {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.nav-list {
    display: flex;
    margin: 0;
    padding: 0;
    list-style: none;
}

.nav-list li {
    margin: 0 20px;
}

.nav-list a {
    list-style: none;
    text-decoration: none;

    color: #333;
    text-decoration: none;
    font-size: 18px;
    padding: 5px 0;
    position: relative;
    transition: all 0.3s;
    line-height: 36px;
}

.nav-list a:hover,
.nav-list a.active {
    color: #ffc100;
}

.nav-list a.active:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: #ffc100;
}

.bread_crumbs {
    color: #666;
    font-size: 14px;
}

.bread_crumbs i {
    margin-right: 5px;
}

.bread_crumbs a {
    color: #666;
    text-decoration: none;
}

.bread_crumbs a:hover {
    color: #007bff;
}

/* 内容区域样式 */
.about-section {
    padding: 80px 0 0;
}

.section-title,
.business-intro,
.culture-header {
    text-align: left;
    margin-bottom: 80px;
    position: relative;
}

.section-title h3,
.business-intro .en-title,
.culture-header .en-title {
    color: #ffc100;
    font-size: 20px;
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
    font-weight: 500;
    text-transform: uppercase;
    padding-left: 60px;
    /* 为横线留出空间 */
}

.section-title h3:before,
.business-intro .en-title:before,
.culture-header .en-title:before {
    content: '';
    width: 70px;
    height: 2px;
    background: #ffc100;
    position: absolute;
    left: -20px;
    top: 50%;
    transform: translateY(-50%);
}

.section-title h2,
.business-intro .cn-title,
.culture-header .cn-title {
    font-size: 42px;
    color: #333;
    margin: 0 0 20px;
    font-weight: 600;
}

.section-title p {
    font-size: 16px;
    color: #666;
}

.section-content {
    max-width: 1000px;
    margin: 0 auto;
    line-height: 1.8;
    color: #666;
}

.company-info {
    display: flex;
    gap: 80px;
    margin-bottom: 50px;
    position: relative;
}

.company-info:before {
    content: '';
    position: absolute;
    left: 0;
    top: -40px;
    width: 100px;
    height: 100px;
    background: rgba(255, 102, 52, 0.05);
    border-radius: 20px;
    z-index: -1;
}

.company-data {
    flex: 0 0 auto;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 60px 80px;
    padding-right: 80px;
    border-right: 1px solid rgba(0, 0, 0, 0.08);
    position: relative;
}

.data-item {
    text-align: left;
    position: relative;
    transition: all 0.3s ease;
}

.data-item:hover {
    transform: translateY(-5px);
}

.data-value {
    font-size: 48px;
    color: #ffc100;
    font-weight: bold;
    line-height: 1;
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.data-value:after {
    content: '+';
    font-size: 24px;
    position: absolute;
    right: -20px;
    top: 0;
}

.data-label {
    font-size: 16px;
    color: #666;
    line-height: 1.6;
}

.company-desc {
    flex: 1;
    font-size: 16px;
    line-height: 2;
    color: #555;
    position: relative;
    padding: 40px;
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.company-desc:before {
    content: '';
    position: absolute;
    right: -20px;
    bottom: -20px;
    width: 200px;
    height: 200px;
    background: rgba(255, 102, 52, 0.03);
    border-radius: 20px;
    z-index: -1;
}

/* 视频区域样式 */
.video-section {
    position: relative;
    /* background: #fff; */
}

.company-video {
    width: 100%;
    position: relative;
    background: #000;
    overflow: hidden;
}

.company-video video {
    width: 100%;
    display: block;
    aspect-ratio: 16/9;
    object-fit: cover;
    height: 88vh;
}

/* 视频播放按钮样式优化 */
.company-video video::-webkit-media-controls-start-playback-button {
    opacity: 0.8;
    transition: opacity 0.3s;
}

.company-video video::-webkit-media-controls-start-playback-button:hover {
    opacity: 1;
}

/* Banner样式 */
.bannercontent {
    position: relative;
    width: 100%;
    height: 300px;
    overflow: hidden;
}

.bannercontent img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.bannercontentcover {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
}

.bannercontent_title {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: #fff;
}

.bannercontent_title h2 {
    font-size: 36px;
    margin: 0;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-wrapper {
        flex-direction: column;
        gap: 10px;
    }

    .nav-list {
        flex-wrap: wrap;
        justify-content: center;
    }

    .nav-list li {
        margin: 5px 10px;
    }

    .bread_crumbs {
        text-align: center;
    }

    .section-title,
    .business-intro,
    .culture-header {
        text-align: center;
        margin-bottom: 40px;
    }

    .section-title h3,
    .business-intro .en-title,
    .culture-header .en-title {
        padding-left: 0;
    }

    .section-title h3:before,
    .business-intro .en-title:before,
    .culture-header .en-title:before {
        display: none;
    }

    .section-title h2,
    .business-intro .cn-title,
    .culture-header .cn-title {
        font-size: 32px;
    }

    .about-section {
        padding: 40px 0;
    }

    .bannercontent {
        height: 200px;
    }

    .bannercontent_title h2 {
        font-size: 28px;
    }

    .company-data {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .data-item {
        text-align: center;
    }

    .data-value {
        font-size: 36px;
    }

    .company-desc {
        padding: 30px;
    }

    .company-video {
        margin-top: 30px;
        border-radius: 10px;
    }

    .company-video:before {
        padding-top: 56.25%;
    }

    .video-section {
        padding: 30px 0 60px;
        margin-top: 30px;
    }
}

@media (max-width: 992px) {
    .section-title h2 {
        font-size: 36px;
    }

    .company-info {
        flex-direction: column;
        gap: 60px;
    }

    .company-data {
        padding-right: 0;
        border-right: none;
        border-bottom: 1px solid rgba(0, 0, 0, 0.08);
        padding-bottom: 60px;
    }

    .data-value {
        font-size: 42px;
    }

    .company-video {
        margin-top: 40px;
    }

    .company-video:before {
        padding-top: 50%;
    }

    .video-section {
        padding: 40px 0 80px;
        margin-top: 40px;
    }
}

/* 添加动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section-title h2,
.section-title h3,
.data-item,
.company-desc {
    animation: fadeInUp 0.8s ease-out forwards;
}

.data-item:nth-child(1) {
    animation-delay: 0.1s;
}

.data-item:nth-child(2) {
    animation-delay: 0.2s;
}

.data-item:nth-child(3) {
    animation-delay: 0.3s;
}

.data-item:nth-child(4) {
    animation-delay: 0.4s;
}

/* 业务板块样式 */
#company-business {
    position: relative;
    padding: 80px 0;
    color: #fff;
    min-height: 100vh;
    background: #000;
    overflow: hidden;
}

/* 业务展示区域样式 */
.business-showcase {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.business-showcase .swiper,
.business-showcase .swiper-wrapper,
.business-showcase .swiper-slide {
    width: 100%;
    height: 100%;
}

.showcase-image {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    position: relative;
}

.showcase-image:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgb(0 0 0 / 25%);
}

/* 业务内容样式 */
.business-content {
    position: relative;
    z-index: 1;
    display: flex;
    gap: 80px;
    align-items: flex-start;
    padding: 40px 0;
}

.business-intro {
    flex: 0 0 45%;
    margin-top: 40px;
}

.business-intro .en-title {
    color: #ffc100;
    font-size: 24px;
    margin-bottom: 20px;
    text-transform: uppercase;
}

.business-intro .cn-title {
    font-size: 48px;
    margin-bottom: 40px;
    white-space: nowrap;
}

.business-intro .intro-text {
    line-height: 2;
    margin-bottom: 0;
    opacity: 0.8;
    font-size: 17px;
}

.business-grid {
    flex: 1;
    max-width: 100%;
    width: 100%;
    overflow: hidden;
    margin: auto;
}

.businessSwiper {
    width: 100%;
    max-width: 100%;
}

.business-card {
    background: rgba(255, 255, 255, 0.1);
    padding: 0;
    text-align: center;
    transition: all 0.3s ease;
    aspect-ratio: 1;
    cursor: pointer;
    backdrop-filter: blur(5px);
    position: relative;
    border-top: rgba(255, 255, 255, .2) 1px solid;
    border-left: rgba(255, 255, 255, .2) 1px solid;
    overflow: hidden;
}

.card-front,
.card-back {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-evenly;
    align-items: center;
    transition: all 0.5s ease;
    backface-visibility: hidden;
}

.card-front {
    background: transparent;
    transform: translateY(0);
}

.card-back {
    background: #ffc100;
    transform: translateY(100%);
    padding: 20px;
}

.business-card:hover .card-front {
    transform: translateY(-100%);
}

.business-card:hover .card-back {
    transform: translateY(0);
}

.back-content {
    color: #fff;
    font-size: 16px;
    line-height: 1.6;
}

.back-content p {
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 6;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

.business-card .icon-box {
    width: 90px;
    height: 90px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.business-card .icon-box img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: all 0.3s ease;
}

.business-card h3 {
    /* font-size: 24px; */
    color: #fff;
    margin: 0;
    transition: all 0.3s ease;
    /* line-height: 1.4;
    padding: 0 20px; */
}

/* 第4和第8号卡片添加右边框 */
.businessSwiper .swiper-slide:nth-child(4) .business-card,
.businessSwiper .swiper-slide:nth-child(8) .business-card {
    border-right: rgba(255, 255, 255, .2) 1px solid;
}

/* 第5-8号卡片添加下边框 */
.businessSwiper .swiper-slide:nth-child(5) .business-card,
.businessSwiper .swiper-slide:nth-child(6) .business-card,
.businessSwiper .swiper-slide:nth-child(7) .business-card,
.businessSwiper .swiper-slide:nth-child(8) .business-card {
    border-bottom: rgba(255, 255, 255, .2) 1px solid;
}

.business-card:hover {
    z-index: 2;
    border-color: transparent;
}

/* Swiper网格布局 */
.businessSwiper .swiper-wrapper {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(2, 1fr);
    gap: 0;
    background: transparent;
    width: 100% !important;
    max-width: 100%;
    height: auto !important;
    transform: none !important;
}

.businessSwiper .swiper-slide {
    width: 100% !important;
    margin-right: 0 !important;
    height: auto !important;
    padding: 0;
    transform: none !important;
}

/* 响应式调整 */
@media (max-width: 1200px) {
    .business-content {
        flex-direction: column;
        gap: 40px;
    }

    .business-intro {
        flex: none;
        width: 100%;
        margin-top: 0;
    }

    #company-business {
        min-height: 100vh;
        padding: 60px 0;
    }
}

@media (max-width: 768px) {
    .business-showcase {
        position: absolute;
        height: 100%;
    }

    .business-showcase .swiper,
    .business-showcase .swiper-wrapper,
    .business-showcase .swiper-slide {
        height: 100%;
    }

    .showcase-image:before {
        background: rgba(0, 0, 0, 0.8);
    }

    .business-grid {
        width: 100%;
        overflow: hidden;
    }

    .businessSwiper .swiper-wrapper {
        grid-template-columns: repeat(2, 1fr);
        width: 100% !important;
        transform: none !important;
    }

    .business-card {
        aspect-ratio: 1;
    }

    .business-intro .cn-title {
        font-size: 28px;
        margin-bottom: 20px;
    }

    .business-intro .intro-text {
        font-size: 14px;
    }

    .business-card .icon-box {
        width: 60px;
        height: 60px;
        margin-bottom: 15px;
    }

    .business-card h3 {
        font-size: 16px;
    }

    .back-content p {
        font-size: 14px;
        -webkit-line-clamp: 4;
    }

    #company-business {
        min-height: auto;
        padding: 40px 0;
    }

    .business-content {
        padding: 20px 0;
    }
}

@media (max-width: 576px) {
    .businessSwiper .swiper-wrapper {
        grid-template-columns: repeat(2, 1fr);
        gap: 1px;
    }

    .business-card {
        min-height: 160px;
    }

    .business-card .icon-box {
        width: 50px;
        height: 50px;
        margin-bottom: 10px;
    }

    .business-card h3 {
        font-size: 14px;
        padding: 0 10px;
    }

    .back-content {
        padding: 10px;
    }

    .back-content p {
        font-size: 12px;
        -webkit-line-clamp: 3;
    }

    #company-business {
        padding: 30px 0;
    }

    .showcase-image:before {
        background: rgba(0, 0, 0, 0.85);
    }
}

/* 企业文化样式 */
#company-culture {
    background: #fff;
    padding: 100px 0;
}

.culture-header {
    text-align: left;
    margin-bottom: 80px;
}

.culture-header .en-title {
    color: #ffc100;
    font-size: 20px;
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
    font-weight: 500;
    text-transform: uppercase;
}

/* .culture-header .en-title:after {
    content: '';
    width: 40px;
    height: 2px;
    background: #ffc100;
    position: absolute;
    left: -60px;
    top: 50%;
    transform: translateY(-50%);
} */

.culture-header .cn-title {
    font-size: 42px;
    color: #333;
    margin: 0 0 20px;
    font-weight: 600;
}

.culture-header .culture-desc {
    font-size: 16px;
    color: #666;
    line-height: 1.8;
    max-width: 800px;
}

.culture-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-top: 80px;
    position: relative;
}

.culture-grid:before {
    content: '';
    position: absolute;
    top: -30px;
    left: 0;
    width: 100%;
    height: 1px;
    background: #eee;
}

.culture-item {
    background: #fff;
    padding: 40px;
    text-align: center;
    border: 1px solid #eee;
    transition: all 0.3s ease;
    cursor: pointer;
    min-height: 420px;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
}

.culture-item:hover {
    background: #ffc100;
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    border-color: #ffc100;
}

.culture-icon {
    width: 120px;
    height: 120px;
    margin: 0 auto 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.culture-icon img {
    width: 80%;
    height: 80%;
    object-fit: contain;
    transition: all 0.5s ease;
    transform: rotateY(0deg);
}

.culture-title {
    font-size: 24px;
    color: #333;
    margin-bottom: 20px;
    font-weight: 500;
    transition: all 0.3s ease;
    width: 100%;
}

.culture-text {
    font-size: 18px;
    color: #666;
    line-height: 1.8;
    margin: 0;
    transition: all 0.3s ease;
}

/* 悬停时文字颜色变白 */
.culture-item:hover .culture-title,
.culture-item:hover .culture-text {
    color: #fff;
}

.culture-item:hover .culture-text {
    color: #fff;
}

/* 响应式调整 */
@media (max-width: 1200px) {
    .culture-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }

    .culture-item {
        min-height: 380px;
        padding: 60px 40px;
    }

    .culture-icon {
        width: 100px;
        height: 100px;
        margin-bottom: 35px;
    }
}

@media (max-width: 768px) {
    #company-culture {
        padding: 60px 0;
    }

    .culture-header {
        margin-bottom: 40px;
        text-align: center;
    }

    .culture-header .en-title:after {
        display: none;
    }

    .culture-header .cn-title {
        font-size: 32px;
    }

    .culture-grid {
        grid-template-columns: 1fr;
        gap: 25px;
        margin-top: 40px;
    }

    .culture-item {
        min-height: auto;
        padding: 50px 30px;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    }

    .culture-icon {
        width: 90px;
        height: 90px;
        margin-bottom: 30px;
    }

    .culture-title {
        font-size: 24px;
        margin-bottom: 25px;
    }

    .culture-text {
        font-size: 16px;
        line-height: 1.8;
    }
}

@media (max-width: 576px) {
    .culture-grid {
        gap: 20px;
    }

    .culture-item {
        padding: 40px 25px;
    }

    .culture-icon {
        width: 80px;
        height: 80px;
        margin-bottom: 25px;
    }

    .culture-title {
        font-size: 22px;
        margin-bottom: 20px;
    }

    .culture-text {
        font-size: 16px;
        line-height: 1.7;
    }
}

/* 响应式布局 */
@media (max-width: 1200px) {
    .company-info {
        gap: 60px;
    }

    .company-data {
        gap: 50px 60px;
        padding-right: 60px;
    }

    .data-value {
        font-size: 42px;
    }
}

@media (max-width: 992px) {
    .company-info {
        flex-direction: column;
        gap: 40px;
    }

    .company-data {
        width: 100%;
        padding-right: 0;
        border-right: none;
        border-bottom: 1px solid rgba(0, 0, 0, 0.08);
        padding-bottom: 40px;
    }

    .company-desc {
        padding: 30px;
    }
}

@media (max-width: 768px) {
    .company-data {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px 20px;
        padding: 0 0 30px 0;
    }

    .data-item {
        text-align: center;
        padding: 20px 10px;
        background: #fff;
        border-radius: 10px;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    }

    .data-value {
        font-size: 32px;
        margin-bottom: 10px;
    }

    .data-value:after {
        font-size: 20px;
        right: -15px;
    }

    .data-label {
        font-size: 14px;
        line-height: 1.4;
    }

    .company-desc {
        padding: 20px;
        font-size: 14px;
        line-height: 1.8;
    }
}

@media (max-width: 480px) {
    .company-data {
        gap: 15px 10px;
    }

    .data-item {
        padding: 15px 8px;
    }

    .data-value {
        font-size: 28px;
    }

    .data-label {
        font-size: 13px;
    }
}

/* 视频部分响应式
.video-section {
    margin-top: 80px;
    position: relative;
    width: 100%;
    padding: 0 40px;
}

.company-video {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.company-video video {
    width: 100%;
    display: block;
    aspect-ratio: 16/9;
    object-fit: cover;
} */

@media (max-width: 768px) {
    .video-section {
        margin-top: 40px;
        padding: 0 20px;
    }

    .company-video {
        border-radius: 10px;
    }
}