/* 主横幅轮播 */
.hero-swiper {
    width: 100%;
    position: relative;
}

.main-slider {
    width: 100%;
}

.main-slider .swiper-slide {
    width: 100%;
    height: 900px;
}

.main-slider .swiper-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.main-slider .swiper-button-prev,
.main-slider .swiper-button-next {
    color: var(--white);
    font-size: 40px;
}

.main-slider .swiper-pagination-bullet {
    width: 15px;
    height: 15px;
    background: var(--white);
    opacity: 0.5;
}

.main-slider .swiper-pagination-bullet-active {
    opacity: 1;
    background: var(--white);
}

/* 按钮样式 */
.btn-primary {
    display: inline-block;
    width: 180px;
    padding: 14px 40px;
    background: var(--primary-color);
    color: var(--white);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
}

.btn-white {
    background: var(--white);
    color: var(--primary-color);
}

.btn-white:hover {
    background: var(--light-bg);
}

/* 区块标题 */
.section-title {
    text-align: center;
    max-width: 960px;
    margin: 0 auto 56px;
}

.section-title h2 {
    font-size: 40px;
    font-weight: 700;
    color: var(--heading-color);
    margin-bottom: 12px;
}

.section-title p {
    font-size: 16px;
    color: var(--text-color);
    line-height: 1.6;
}

/* 综合光伏能源解决方案 */
.section-solutions {
    padding: 88px 0;
    background: var(--white);
}

/* 翻转卡片网格 */
.flip-cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-top: 56px;
}

/* 翻转卡片容器 */
.flip-card {
    perspective: 1000px;
    height: 400px;
    position: relative;
    cursor: pointer;
}

/* 翻转卡片内部容器 */
.flip-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 0.6s ease-in-out;
    transform-style: preserve-3d;
}

/* 悬停时翻转 */
.flip-card:hover .flip-card-inner,
.flip-card:focus-visible .flip-card-inner {
    transform: rotateY(180deg);
}

/* 正面和背面的共同样式 */
.flip-card-front,
.flip-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    border-radius: 4px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transform-style: preserve-3d;
}

/* 正面样式 */
.flip-card-front {
    background: #f4f5f7;
    background-position: center center;
    background-repeat: no-repeat;
    background-size: contain;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid #f4f5f7;
    z-index: 2;
    transform: rotateY(0deg);
}

.flip-card-front img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 20px;
    transition: transform 0.3s ease;
}

/* 背面样式 */
.flip-card-back {
    background: var(--white);
    transform: rotateY(180deg);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 35px;
    color: var(--text-color);
}

.flip-card-back h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--heading-color);
    margin: 0 0 20px 0;
    line-height: 1.3;
}

.flip-card-back p {
    font-size: 15px;
    color: var(--text-color);
    line-height: 1.6;
    margin: 0 0 25px 0;
    padding: 0;
    text-align: center;
}

/* Learn More 按钮 */
.btn-learn-more {
    display: inline-block;
    padding: 12px 30px;
    background: #093684;
    color: var(--white);
    text-decoration: none;
    border-radius: 5px;
    font-family: "Inter", Arial, sans-serif;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    cursor: pointer;
    margin: 0 auto;
}

.btn-learn-more:hover,
.btn-learn-more:focus {
    background: #f4f5f7;

}

/* 滚动动画 - 淡入上移 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translate3d(0, 40px, 0);
    }

    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.8s ease-out;
}

/* 延迟动画 */
.flip-card:nth-child(1) {
    animation-delay: 0.1s;
}

.flip-card:nth-child(2) {
    animation-delay: 0.2s;
}

.flip-card:nth-child(3) {
    animation-delay: 0.3s;
}

/* 翻转卡片的flipped状态（用于移动端点击） */
.flip-card.flipped .flip-card-inner {
    transform: rotateY(180deg);
}

/* 标题动画 */
.section-title {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

.section-title.animate-in {
    opacity: 1;
    transform: translateY(0);
}

/* 数据统计项动画 */
.stats-item {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

.stats-item.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.stats-item:nth-child(1) {
    transition-delay: 0.1s;
}

.stats-item:nth-child(2) {
    transition-delay: 0.2s;
}

.stats-item:nth-child(3) {
    transition-delay: 0.3s;
}

.stats-item:nth-child(4) {
    transition-delay: 0.4s;
}

.stats-item:nth-child(5) {
    transition-delay: 0.5s;
}

.stats-item:nth-child(6) {
    transition-delay: 0.6s;
}

/* 产品卡片动画 */
.product-card {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

.product-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

/* 项目案例卡片动画 */
.project-card {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

.project-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.project-card:nth-child(1) {
    transition-delay: 0.1s;
}

.project-card:nth-child(2) {
    transition-delay: 0.2s;
}

.project-card:nth-child(3) {
    transition-delay: 0.3s;
}

.project-card:nth-child(4) {
    transition-delay: 0.4s;
}

/* 优势卡片动画 */
.benefit-card {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

.benefit-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.benefit-card:nth-child(1) {
    transition-delay: 0.1s;
}

.benefit-card:nth-child(2) {
    transition-delay: 0.2s;
}

.benefit-card:nth-child(3) {
    transition-delay: 0.3s;
}

/* 按钮悬停放大效果 */
.btn,
button,
.cta-button {
    transition: all 0.3s ease;
}

.btn:hover,
button:hover,
.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn:active,
button:active,
.cta-button:active {
    transform: translateY(0);
}

/* 产品展示区 */
.section-products {
    padding: 0;
}

.products-showcase {
    display: flex;
}

.product-card {
    flex: 1;
    height: 724px;
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.product-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.product-card:hover img {
    transform: scale(1.05);
}

/* 深色遮罩层 */
.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
    transition: background 0.4s ease;
    pointer-events: none;
}

.product-card:hover .product-overlay {
    background: rgba(0, 0, 0, 0.5);
}

/* 产品内容区域 */
.product-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 40px;
    color: var(--white);
    z-index: 2;
}

.product-content h3 {
    font-family: "Inter", Arial, sans-serif;
    font-size: 32px;
    font-weight: 500;
    color: var(--white);
    margin: 0 0 15px 0;
    line-height: 1.3;
    transition: all 0.3s ease;
}

/* 描述文字 - 默认隐藏 */
.product-description {
    font-family: "Inter", Arial, sans-serif;
    font-size: 18px;
    font-weight: 400;
    color: var(--white);
    margin: 0 0 20px 0;
    line-height: 1.5;
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    transition: all 0.4s ease;
}

/* 悬停时显示描述 */
.product-card:hover .product-description {
    opacity: 1;
    max-height: 100px;
}

/* Learn More 按钮 - 默认隐藏 */
.product-btn {
    display: inline-block;
    padding: 12px 30px;
    background: #093684;
    color: var(--white);
    font-family: "Inter", Arial, sans-serif;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    border-radius: 5px;
    border: 2px solid #093684;
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(10px);
}

/* 悬停时显示按钮 */
.product-card:hover .product-btn {
    opacity: 1;
    transform: translateY(0);
}

.product-btn:hover {
    background: transparent;
    border-color: var(--white);
    color: var(--white);
}

/* 关于公司 */
.section-about {
    padding: 100px 0;
    background-image: url('../images/Frame-480958087.jpg');
    background-size: cover;
    background-position: right center;
    background-repeat: no-repeat;
    min-height: 650px;
    display: flex;
    align-items: center;
}



.about-content {
    max-width: 600px;
    margin-right: auto;
}

.about-title {
    font-size: 40px;
    font-weight: 700;
    color: #000000;
    margin-bottom: 30px;
    line-height: 1.2;
}

.about-description {
    font-size: 16px;
    line-height: 1.8;
    color: #666666;
    margin-bottom: 35px;
}

.btn-learn-more {
    display: inline-block;
    padding: 12px 30px;
    background: #093684;
    color: #ffffff;
    font-size: 14px;
    font-weight: 500;
    border-radius: 5px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.btn-learn-more:hover {
    background: #0a4ba0;
}

/* 统计数据 */
.section-stats {
    background-image: url('../images/bg.webp');
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    padding: 88px 0;
    color: var(--white);
    position: relative;
}

/* 添加深色遮罩层 */
.section-stats::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(9, 54, 132, 0.45);
    z-index: 1;
}

.section-stats .container {
    position: relative;
    z-index: 2;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 30px 20px;
    max-width: 1400px;
    margin: 0 auto;
    align-items: center;
}

.stat-item {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 1;
    transform: translateY(0);
    transition: all 0.8s ease-out;
}

/* JS加载后，初始隐藏等待动画 */
.js-loaded .stat-item {
    opacity: 0;
    transform: translateY(30px);
}

.stat-item.animate-in {
    opacity: 1;
    transform: translateY(0);
}

/* 为每个统计项添加渐进延迟 */
.stat-item:nth-child(1) {
    transition-delay: 0.1s;
}

.stat-item:nth-child(2) {
    transition-delay: 0.2s;
}

.stat-item:nth-child(3) {
    transition-delay: 0.3s;
}

.stat-item:nth-child(4) {
    transition-delay: 0.4s;
}

.stat-item:nth-child(5) {
    transition-delay: 0.5s;
}

.stat-item:nth-child(6) {
    transition-delay: 0.6s;
}

/* 统计图标 */
.stat-icon {
    width: 90px;
    height: 90px;
    margin: 0 0 20px 0;
    background: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.stat-icon img {
    width: 60px;
    height: 60px;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.stat-item:hover .stat-icon {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.stat-item:hover .stat-icon img {
    transform: scale(1.1);
}

.stat-value,
.stat-text {
    font-family: "Inter", Arial, sans-serif;
    font-size: 40px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 10px;
    line-height: 1.2;
    text-align: center;
}

.stat-label {
    font-family: "Inter", Arial, sans-serif;
    font-size: 14px;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.5;
    margin: 0;
    padding: 0;
    text-align: center;
    max-width: 100%;
}

/* 赋能未来 */
.section-empowering {
    padding: 88px 0;
    background: var(--white);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.gallery-item {
    position: relative;
    height: 420px;
    border-radius: 8px;
    overflow: hidden;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.8s cubic-bezier(0.25, 0.8, 0.25, 1);
    opacity: 0;
    transform: translateY(30px);
    cursor: pointer;
}

.gallery-item.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.gallery-item:nth-child(1) {
    transition-delay: 0.1s;
}

.gallery-item:nth-child(2) {
    transition-delay: 0.2s;
}

.gallery-item:nth-child(3) {
    transition-delay: 0.3s;
}

.gallery-item:nth-child(4) {
    transition-delay: 0.4s;
}

.gallery-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-size: cover;
    background-position: center;
    background-image: inherit;
    transition: transform 1s ease;
    z-index: 0;
}


.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top,
            rgba(0, 0, 0, 0.85) 0%,
            rgba(0, 0, 0, 0.5) 50%,
            rgba(0, 0, 0, 0.2) 100%);
    transition: all 0.8s ease;
    z-index: 1;
}

.gallery-item:hover .gallery-overlay {
    background: linear-gradient(to top,
            rgba(0, 0, 0, 0.75) 0%,
            rgba(0, 0, 0, 0.4) 50%,
            rgba(0, 0, 0, 0.1) 100%);
}

.gallery-content {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 30px 25px;
    color: var(--white);
    z-index: 2;
}

.gallery-item h3 {
    font-family: "Inter", Arial, sans-serif;
    font-size: 24px;
    font-weight: 600;
    color: var(--white);
    margin: 0;
    line-height: 1.3;
    text-align: center;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: calc(100% - 60px);
    transition: all 0.8s ease;
}

.gallery-item:hover h3 {
    top: 40%;
}

.gallery-item p {
    font-family: "Inter", Arial, sans-serif;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.95);
    margin: 0;
    line-height: 1.6;
    text-align: center;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
    position: absolute;
    bottom: 30px;
    left: 25px;
    right: 25px;
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    transition: all 0.8s ease;
}

.gallery-item:hover p {
    opacity: 1;
    max-height: 200px;
}

/* 客户权益与承诺 */
.section-benefits {
    padding: 88px 0;
    background: var(--light-bg);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.benefit-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.benefit-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.benefit-icon {
    width: 70px;
    height: 70px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    transition: all 0.4s ease;
}

.benefit-card:hover .benefit-icon {
    transform: scale(1.1) rotate(360deg);
    background: #5a7bc1;
}

.benefit-icon i {
    font-size: 32px;
    color: var(--white);
    transition: transform 0.3s ease;
}

.benefit-card:hover .benefit-icon i {
    transform: scale(1.1);
}

.benefit-card h3 {
    font-family: "Inter", Arial, sans-serif;
    font-size: 20px;
    font-weight: 600;
    color: var(--heading-color);
    margin-bottom: 15px;
    transition: color 0.3s ease;
}

.benefit-card:hover h3 {
    color: var(--primary-color);
}

.benefit-card p {
    font-family: "Inter", Arial, sans-serif;
    font-size: 15px;
    color: var(--text-color);
    line-height: 1.7;
    margin: 0;
}

/* 项目案例 */
.section-projects {
    padding: 88px;
    background: var(--white);
    min-height: 1094px;
    display: flex;
    align-items: center;
}

.section-projects .container {
    width: 100%;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
}

.project-card {
    position: relative;
    height: 372px;
    overflow: hidden;
    cursor: pointer;
}

.project-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s ease;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    transform: translateX(-100%);
    transition: transform 0.8s ease;
    z-index: 1;
}

.project-card:hover::before {
    transform: translateX(0);
}

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

.project-info {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 20px;
    text-align: center;
    z-index: 2;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease 0.2s;
}

.project-card:hover .project-info {
    opacity: 1;
    transform: translateY(0);
}

.project-info h4 {
    font-family: "Inter", Arial, sans-serif;
    font-size: 18px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 12px;
    line-height: 1.4;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}

.project-info p {
    font-family: "Inter", Arial, sans-serif;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.95);
    margin: 0;
    line-height: 1.6;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

/* 全球领导者 */
.section-leader {
    display: flex;
    min-height: 560px;
    justify-content: center;
    align-items: center;
    gap: 32px;
    padding: 0;
    color: var(--white);
    background-image: url('../picture/file_01694252252336.webp');
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
    background-attachment: fixed;
    position: relative;
    overflow: hidden;
    text-align: center;
}

#particles-js {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

#particles-js canvas {
    display: block;
    width: 100%;
    height: 100%;
}

.section-leader::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    /* background: rgba(0, 0, 0, 0.3); */
    z-index: 1;
}

.section-leader .container {
    position: relative;
    z-index: 2;
}

.section-leader h2 {
    font-family: "Inter", Arial, sans-serif;
    font-size: 40px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 16px;
    text-align: center;
}

.section-leader p {
    font-family: "Inter", Arial, sans-serif;
    font-size: 16px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 32px;
    text-align: center;
}

.btn-white {
    display: inline-block;
    padding: 12px 30px;
    background: var(--primary-color);
    color: var(--white);
    text-decoration: none;
    border-radius: 5px;
    font-weight: 500;
    font-size: 14px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.btn-white:hover {
    background: #7a5ae2;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

/* 联系表单 */
.section-contact {
    display: flex;
    min-height: 700px;
    padding: 0;
    background: transparent;
    position: relative;
}

.section-contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('../picture/quality80-13.webp');
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
    z-index: 0;
}

.section-contact .container {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 80px 88px;
    width: 100%;
}

.section-contact .section-title {
    text-align: center;
    margin-bottom: 40px;
}

.section-contact .section-title h2 {
    font-family: "Inter", Arial, sans-serif;
    font-size: 60px;
    font-weight: 600;
    color: #000000;
    margin-bottom: 16px;
}

.section-contact .section-title p {
    font-family: "Inter", Arial, sans-serif;
    font-size: 16px;
    font-weight: 400;
    color: #000000;
    max-width: 953px;
    margin: 0 auto;
}

.contact-form {
    max-width: 960px;
    width: 100%;
    margin: 0 auto;
    padding: 50px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.form-row:has(textarea),
.form-row:has(.full-width) {
    grid-template-columns: 1fr;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 15px;
    font-family: "Inter", Arial, sans-serif;
    background: var(--white);
    transition: all 0.3s ease;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(9, 54, 132, 0.1);
}

.contact-form textarea {
    resize: vertical;
}

.contact-form button[type="submit"] {
    width: 215px;
    font-size: 16px;
    padding: 15px 30px;
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
    display: block;
    margin: 0 auto;
}

.contact-form button[type="submit"]:hover {
    background-color: #7a5ae2;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}


/* 响应式设计 */
@media (max-width: 1024px) {
    .main-slider .swiper-slide {
        height: 600px;
    }

    .flip-cards-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }

    .flip-card {
        height: 365px;
    }

    .stats-grid {
        grid-template-columns: repeat(5, 1fr);
        gap: 30px 15px;
    }

    .stat-icon {
        width: 70px;
        height: 70px;
        margin-bottom: 15px;
    }

    .stat-icon img {
        width: 38px;
        height: 38px;
    }

    .stat-value,
    .stat-text {
        font-size: 40px;
        margin-bottom: 8px;
    }

    .stat-label {
        font-size: 14px;
    }

    .section-projects {
        padding: 80px 20px;
        min-height: auto;
    }

    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .project-card {
        height: 320px;
    }

    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .gallery-item {
        height: 360px;
    }

    .gallery-item h3 {
        font-size: 20px;
        width: calc(100% - 40px);
    }

    .gallery-item p {
        font-size: 13px;
        max-height: 150px;
        bottom: 25px;
        left: 20px;
        right: 20px;
    }

    .gallery-content {
        padding: 25px 20px;
    }

    .projects-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .about-content {
        padding: 50px;
    }

    .section-leader {
        min-height: 277px;
        gap: 28px;
        padding: 20px;
    }

    .section-leader h2 {
        font-size: 32px;
    }

    .section-contact {
        min-height: 500px;
    }

    .section-contact .container {
        padding: 50px 20px;
    }

    .section-contact .section-title h2 {
        font-size: 50px;
    }

    .contact-form {
        padding: 40px 30px;
    }
}

@media (max-width: 768px) {
    .main-slider .swiper-slide {
        height: 390px;
    }

    .main-slider h1 {
        font-size: 32px;
        padding: 0 20px;
    }

    .main-slider p {
        font-size: 16px;
        padding: 0 20px;
    }

    .container {
        padding: 0 20px;
    }

    .section-title h2 {
        font-size: 28px;
    }

    .section-title p {
        font-size: 14px;
    }

    .btn-primary {
        width: 100%;
        padding: 12px 30px;
        font-size: 14px;
    }

    .flip-cards-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .flip-card {
        height: 400px;
    }

    .flip-card-back {
        padding: 30px 25px;
    }

    .flip-card-back h3 {
        font-size: 22px;
    }

    .flip-card-back p {
        font-size: 14px;
    }

    .products-showcase {
        flex-direction: column;
    }

    .product-card {
        height: 500px;
    }

    .product-content {
        padding: 30px 20px;
    }

    .product-content h3 {
        font-size: 24px;
    }

    .product-description {
        font-size: 16px;
    }

    .about-container {
        flex-direction: column;
    }

    .about-content {
        padding: 40px 20px;
    }

    .section-stats {
        padding: 60px 20px;
        background-attachment: scroll;
    }

    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 40px 15px;
    }

    .stat-icon {
        width: 60px;
        height: 60px;
        margin-bottom: 12px;
    }

    .stat-icon img {
        width: 32px;
        height: 32px;
    }

    .stat-value,
    .stat-text {
        font-size: 32px;
        margin-bottom: 6px;
    }

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

    .gallery-grid,
    .benefits-grid,
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .gallery-item {
        height: 320px;
    }

    .gallery-content {
        padding: 20px 15px;
    }

    .gallery-item h3 {
        font-size: 18px;
        width: calc(100% - 30px);
    }

    .gallery-item p {
        font-size: 13px;
        max-height: 120px;
        bottom: 20px;
        left: 15px;
        right: 15px;
    }

    .section-leader {
        min-height: 300px;
        padding: 40px 20px;
        background-attachment: scroll;
    }

    .section-leader h2 {
        font-size: 28px;
    }

    .section-leader p {
        font-size: 14px;
    }

    .btn-white {
        padding: 10px 24px;
        font-size: 14px;
    }

    .section-contact {
        min-height: auto;
    }

    .section-contact .container {
        padding: 40px 20px;
    }

    .section-contact .section-title h2 {
        font-size: 32px;
    }

    .section-contact .section-title p {
        font-size: 14px;
    }

    .contact-form {
        padding: 30px 20px;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .contact-form button[type="submit"] {
        width: 100%;
        padding: 14px 20px;
    }
}

@media (max-width: 767px) {
    .section-projects {
        padding: 60px 15px;
    }

    .projects-grid {
        grid-template-columns: repeat(1, 1fr);
    }

    .project-card {
        height: 280px;
    }

    .project-info h4 {
        font-size: 16px;
    }

    .project-info p {
        font-size: 13px;
    }

    .section-leader {
        min-height: 262px;
        gap: 24px;
        padding: 15px;
    }

    .section-leader h2 {
        font-size: 24px;
    }

    .section-leader p {
        font-size: 16px;
        text-align: center;
    }

    .section-contact .container {
        padding: 40px 15px;
    }

    .section-contact .section-title h2 {
        font-size: 24px;
    }

    .contact-form {
        padding: 30px 20px;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .contact-form button[type="submit"] {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .main-slider .swiper-slide {
        height: 320px;
    }

    .main-slider h1 {
        font-size: 24px;
        padding: 0 15px;
    }

    .main-slider p {
        font-size: 14px;
        padding: 0 15px;
    }

    .section-title h2 {
        font-size: 24px;
    }

    .section-title p {
        font-size: 13px;
    }

    .section-solutions,
    .section-empowering,
    .section-benefits {
        padding: 50px 0;
    }

    .flip-card {
        height: 350px;
    }

    .flip-card-front h3 {
        font-size: 20px;
    }

    .flip-card-back {
        padding: 25px 20px;
    }

    .flip-card-back h3 {
        font-size: 20px;
    }

    .flip-card-back p {
        font-size: 13px;
    }

    .product-card {
        height: 400px;
    }

    .product-content {
        padding: 25px 15px;
    }

    .product-content h3 {
        font-size: 20px;
    }

    .product-description {
        font-size: 14px;
    }

    .about-content {
        padding: 30px 15px;
        gap: 30px;
    }

    .about-heading {
        font-size: 20px;
        margin-bottom: 10px;
    }

    .about-text {
        font-size: 14px;
        line-height: 1.6;
    }

    .about-content h2 {
        font-size: 24px;
    }

    .about-content p {
        font-size: 14px;
    }

    .section-stats {
        padding: 50px 15px;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px 15px;
    }

    .stat-icon {
        width: 50px;
        height: 50px;
        margin-bottom: 10px;
    }

    .stat-icon img {
        width: 28px;
        height: 28px;
    }

    .stat-value,
    .stat-text {
        font-size: 28px;
    }

    .stat-label {
        font-size: 12px;
    }

    .gallery-item {
        height: 280px;
    }

    .gallery-item h3 {
        font-size: 16px;
    }

    .gallery-item p {
        font-size: 12px;
        max-height: 100px;
    }

    .section-projects {
        padding: 50px 15px;
    }

    .project-card {
        height: 240px;
    }

    .project-info h4 {
        font-size: 16px;
    }

    .project-info p {
        font-size: 12px;
    }

    .section-leader {
        min-height: 250px;
        padding: 30px 15px;
        background-attachment: scroll;
    }

    .section-leader h2 {
        font-size: 24px;
    }

    .section-leader p {
        font-size: 13px;
    }

    .btn-white {
        padding: 10px 20px;
        font-size: 13px;
    }

    .section-contact {
        min-height: auto;
    }

    .section-contact .container {
        padding: 30px 15px;
    }

    .section-contact .section-title h2 {
        font-size: 24px;
    }

    .section-contact .section-title p {
        font-size: 13px;
    }

    .contact-form {
        padding: 25px 15px;
    }

    .contact-form input,
    .contact-form select,
    .contact-form textarea {
        padding: 12px;
        font-size: 14px;
    }

    .contact-form button[type="submit"] {
        width: 100%;
        padding: 12px 20px;
        font-size: 14px;
    }

    .section-about {
        padding: 60px 0;
        min-height: 500px;
        background-position: center center;
    }

    .about-container {
        padding: 0 20px;
    }

    .about-content {
        max-width: 100%;
        background: rgba(255, 255, 255, 0.95);
        padding: 30px 20px;
        border-radius: 8px;
    }

    .about-title {
        font-size: 32px;
        margin-bottom: 20px;
    }

    .about-description {
        font-size: 15px;
        margin-bottom: 25px;
    }

    .btn-learn-more {
        padding: 10px 25px;
        font-size: 13px;
    }
}

/* 移动端触摸优化 */
@media (max-width: 768px) {
    * {
        -webkit-tap-highlight-color: transparent;
    }

    body {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
        touch-action: manipulation;
    }

    a,
    button,
    .btn-primary,
    .btn-white,
    .flip-card,
    .product-card,
    .project-card,
    .gallery-item {
        touch-action: manipulation;
        cursor: pointer;
    }

    /* 防止iOS自动缩放表单输入 */
    input,
    textarea,
    select {
        font-size: 16px !important;
    }

    /* 优化滚动性能 */
    .main-slider,
    .flip-card,
    .product-card,
    .project-card {
        -webkit-transform: translateZ(0);
        transform: translateZ(0);
    }
}