/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 颜色变量定义 */
:root {
    --primary-color: #ff6b35;
    --primary-dark: #e55a25;
    --secondary-color: #f7931e;
    --dark-color: #2c3e50;
    --light-color: #f8f9fa;
    --gray-color: #6c757d;
    --gray-light: #e9ecef;
    --white: #ffffff;
    --black: #000000;
}

/* 排版样式 */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1rem;
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: all 0.3s ease;
}

a:hover {
    color: var(--primary-dark);
}

/* 容器样式 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 按钮样式 */
.btn-primary {
    display: inline-block;
    background-color: var(--primary-color);
    color: var(--white);
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(255, 107, 53, 0.3);
    color: var(--white);
}

/* 导航栏样式 */
.navbar {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin: 0;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu li a {
    color: var(--dark-color);
    font-weight: 600;
    position: relative;
}

.nav-menu li a:hover, .nav-menu li a.active {
    color: var(--primary-color);
}

.nav-menu li a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-menu li a:hover::after, .nav-menu li a.active::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--primary-color);
}

/* 语言切换滑块样式 */
.language-switcher {
    margin-left: 1.5rem;
    position: relative;
}

.lang-switch {
    position: relative;
    display: inline-block;
    width: 90px;
    height: 32px;
    cursor: pointer;
}

.lang-switch input {
    opacity: 0;
    width: 0;
    height: 0;
    cursor: pointer;
}

.lang-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #f1f1f1;
    transition: .4s;
    border-radius: 32px;
    border: 2px solid var(--primary-color);
}

/* 中文标签 */
.lang-slider:after {
    position: absolute;
    content: "中文";
    height: 24px;
    width: 30px;
    left: 8px;
    top: 50%;
    transform: translateY(-50%);
    color: #666;
    text-align: center;
    line-height: 24px;
    font-size: 0.7rem;
    font-weight: 600;
    z-index: 3;
    transition: color .4s;
}

/* EN标签 */
.lang-switch:before {
    position: absolute;
    content: "EN";
    height: 24px;
    width: 30px;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    color: #666;
    text-align: center;
    line-height: 24px;
    font-size: 0.7rem;
    font-weight: 600;
    z-index: 3;
    transition: color .4s;
}

/* 滑块按钮 */
.lang-slider .slider-button {
    position: absolute;
    height: 24px;
    width: 40px;
    left: 4px;
    top: 50%;
    transform: translateY(-50%);
    background-color: var(--primary-color);
    color: white;
    text-align: center;
    line-height: 24px;
    font-size: 0.7rem;
    font-weight: 600;
    transition: .4s;
    border-radius: 20px;
    z-index: 2;
    cursor: pointer;
}

input:checked + .lang-slider .slider-button {
    transform: translate(40px, -50%);
}

/* 高亮当前语言 */
input:not(:checked) + .lang-slider:after {
    color: white;
}

input:checked + .lang-slider:before {
    color: white;
}

.lang-switch:hover .lang-slider {
    box-shadow: 0 0 5px var(--primary-color);
}

/* 英雄区样式 */
.hero {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    background-size: cover;
    background-position: center;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    margin-top: 70px;
    position: relative;
    overflow: hidden;
}

.hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    margin-top: 300px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 70%, rgba(255, 107, 53, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 70% 30%, rgba(230, 90, 40, 0.1) 0%, transparent 50%);
    pointer-events: none;
    z-index: 1;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 1;
    pointer-events: none;
}

.hero-content h2 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    animation: fadeInUp 1s ease;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease 0.3s both;
}

.hero-content .btn-primary {
    animation: fadeInUp 1s ease 0.6s both;
}

/* 页面标题样式 */
.page-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    background-size: cover;
    background-position: center;
    padding: 8rem 0 4rem;
    text-align: center;
    color: var(--white);
    margin-top: 70px;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 40%),
                radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.08) 0%, transparent 40%);
    pointer-events: none;
}

.page-header h2 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

/* 区块标题样式 */
.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    position: relative;
    display: inline-block;
    color: var(--dark-color);
}

.section-header .line {
    width: 80px;
    height: 3px;
    background-color: var(--primary-color);
    margin: 1rem auto;
    border-radius: 2px;
}

/* 企业简介样式 */
.about {
    padding: 5rem 0;
    background-color: var(--white);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: var(--gray-color);
}

.about-image img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.about-image img:hover {
    transform: translateY(-5px);
}

/* 公司全景图片动画效果 */
.about-image-container {
    opacity: 0;
    transform: translateX(50px) scale(0.9);
    transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    perspective: 1000px;
}

.about-image-container.fade-in-visible {
    opacity: 1;
    transform: translateX(0) scale(1);
}

.about-image-animated {
    transition: all 0.5s ease-out;
    position: relative;
}

/* 悬停时的3D效果 */
.about-image-container:hover .about-image-animated {
    transform: translateY(-6px) rotateX(3deg) scale(1.02);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.12);
}

/* 核心业务样式 */
.services {
    padding: 5rem 0;
    background-color: var(--light-color);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .services-grid {
        grid-template-columns: 1fr;
    }
}

.service-card {
    background-color: var(--white);
    padding: 2.5rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.service-image {
    width: 100%;
    height: 180px;
    border-radius: 10px;
    overflow: hidden;
    margin: 0 auto 1.5rem;
    transition: all 0.3s ease;
}

.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.service-card:hover .service-image {
    box-shadow: 0 10px 30px rgba(255, 107, 53, 0.2);
}

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

.service-card h3 {
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.service-card p {
    color: var(--gray-color);
}

/* 优势亮点样式 */
.features {
    padding: 5rem 0;
    background-color: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

@media (max-width: 1200px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
}

.feature-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1rem;
    padding: 1.5rem;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.feature-item:hover {
    background-color: var(--light-color);
    transform: translateY(-5px);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background-color: rgba(255, 107, 53, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.feature-content h3 {
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.feature-content p {
    color: var(--gray-color);
    margin-bottom: 0;
}

/* 企业宣传片样式 */
.video-section {
    padding: 5rem 0;
    background-color: var(--light-color);
}

.video-container {
    position: relative;
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.video-container iframe {
    width: 100%;
    height: 500px;
    border: none;
}

/* 视频封面样式 */
.video-poster {
    position: relative;
    width: 100%;
    height: 500px;
    cursor: pointer;
    overflow: hidden;
    border-radius: 10px;
    z-index: 5;
}

.video-poster img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.video-poster:hover img {
    transform: scale(1.05);
}

.play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--white);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    z-index: 10;
}

.play-button i {
    font-size: 5rem;
    color: var(--primary-color);
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    width: 100px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.play-button:hover i {
    transform: scale(1.1);
    background: var(--white);
}

.play-button span {
    font-size: 1.2rem;
    font-weight: 600;
    background: rgba(0, 0, 0, 0.6);
    padding: 0.5rem 1rem;
    border-radius: 5px;
}

/* 视频元素样式 */
#promoVideo {
    width: 100%;
    height: 500px;
    border-radius: 10px;
    display: block;
}

/* 产品详情样式 */
.product-detail {
    padding: 5rem 0;
    background-color: var(--white);
}

.product-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.product-content.reverse {
    direction: rtl;
}

.product-content.reverse .product-info {
    direction: ltr;
}

.product-image img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* 四角清胶机图片动画效果 */
.product-image-container {
    opacity: 0;
    transform: translateX(-50px) scale(0.9);
    transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    perspective: 1000px;
}

.product-image-container.fade-in-visible {
    opacity: 1;
    transform: translateX(0) scale(1);
}

.product-image-animated {
    transition: all 0.5s ease-out;
    position: relative;
}

/* 悬停时的3D效果 */
.product-image-container:hover .product-image-animated {
    transform: translateY(-8px) rotateY(5deg) scale(1.03);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}



/* 针对reverse布局的动画调整 */
.product-content.reverse .product-image-container {
    transform: translateX(50px) scale(0.9);
}

.product-content.reverse .product-image-container.fade-in-visible {
    transform: translateX(0) scale(1);
}

.product-info h3 {
    font-size: 2rem;
    color: var(--dark-color);
    margin-bottom: 1.5rem;
}

.product-info p {
    font-size: 1.1rem;
    color: var(--gray-color);
    margin-bottom: 2rem;
}

.product-features {
    list-style: none;
}

.product-features li {
    padding: 0.8rem 0;
    padding-left: 2rem;
    position: relative;
    color: var(--dark-color);
    font-weight: 500;
}

.product-features li i {
    position: absolute;
    left: 0;
    top: 1rem;
    color: var(--primary-color);
    font-size: 1.2rem;
}

/* 技术服务样式 */
.service-section {
    padding: 5rem 0;
    background-color: var(--light-color);
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.service-item {
    text-align: center;
    padding: 2rem;
    background-color: var(--white);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.service-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.service-item .service-icon {
    width: 60px;
    height: 60px;
    background-color: rgba(255, 107, 53, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.service-item .service-icon i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.service-item h3 {
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.service-item p {
    color: var(--gray-color);
}

/* 发展历程样式 */
.history {
    padding: 5rem 0;
    background-color: var(--white);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--gray-light);
    transform: translateX(-50%);
}

.timeline-item {
    padding: 2rem 0;
    position: relative;
    width: 50%;
    box-sizing: border-box;
}

.timeline-item:nth-child(odd) {
    left: 0;
    padding-right: 3rem;
    text-align: right;
}

.timeline-item:nth-child(even) {
    left: 50%;
    padding-left: 3rem;
}

.timeline-item::after {
    content: '';
    position: absolute;
    top: 2.5rem;
    width: 16px;
    height: 16px;
    background-color: var(--primary-color);
    border-radius: 50%;
    border: 4px solid var(--white);
    box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.2);
}

.timeline-item:nth-child(odd)::after {
    right: -11px;
}

.timeline-item:nth-child(even)::after {
    left: -11px;
}

.timeline-content {
    background-color: var(--white);
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.timeline-item:hover .timeline-content {
    transform: scale(1.05);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.timeline-content h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.timeline-content p {
    color: var(--gray-color);
    margin-bottom: 0;
}

/* 团队介绍样式 */
.team {
    padding: 5rem 0;
    background-color: var(--light-color);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.team-member {
    background-color: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.team-member:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.member-image img {
    width: 100%;
    height: 300px;
    object-fit: cover;
}

.member-info {
    padding: 1.5rem;
    text-align: center;
}

.member-info h3 {
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.member-info p:first-of-type {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 1rem;
}

.member-info p:last-of-type {
    color: var(--gray-color);
    margin-bottom: 1.5rem;
}

.member-social {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.member-social a {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 107, 53, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    transition: all 0.3s ease;
}

.member-social a:hover {
    background-color: var(--primary-color);
    color: var(--white);
    transform: scale(1.1);
}

/* 团队合影样式 */
.team-photo-container {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 1s ease, transform 1s ease;
}

.team-photo-container.fade-in-visible {
    opacity: 1;
    transform: scale(1);
}

.team-photo {
    transition: all 0.5s ease;
    cursor: pointer;
}

.team-photo:hover {
    transform: scale(1.02);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

/* 企业文化样式 */
.culture {
    padding: 5rem 0;
    background-color: var(--white);
}

.culture-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.culture-item {
    text-align: center;
    padding: 2rem;
    background-color: var(--light-color);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.culture-item:hover {
    background-color: rgba(255, 107, 53, 0.05);
    transform: translateY(-5px);
}

.culture-icon {
    width: 70px;
    height: 70px;
    background-color: rgba(255, 107, 53, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.culture-icon i {
    font-size: 1.8rem;
    color: var(--primary-color);
}

.culture-item h3 {
    color: var(--dark-color);
    margin-bottom: 1rem;
}

.culture-item p {
    color: var(--gray-color);
    font-weight: 500;
}

.culture-image img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* 企业环境样式 */
.environment {
    padding: 5rem 0;
    background-color: var(--light-color);
}

.environment-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.env-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.env-item img:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

/* 联系信息样式 */
.contact-info {
    padding: 5rem 0;
    background-color: var(--white);
}

.contact-content {
    display: grid;
    grid-template-columns: 3fr 7fr;
    gap: 3rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
    padding: 1.5rem;
    background-color: var(--light-color);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background-color: rgba(255, 107, 53, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.contact-text h3 {
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.contact-text p {
    color: var(--gray-color);
    margin-bottom: 0;
}

.contact-map h3 {
    color: var(--dark-color);
    margin-bottom: 1.5rem;
}

.map-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 10px;
    margin-bottom: 1rem;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.5s ease;
}

.map-container {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 1s ease, transform 1s ease;
}

.map-container.fade-in-visible {
    opacity: 1;
    transform: scale(1);
}

.map-image img:hover {
    transform: scale(1.02);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.contact-map p {
    color: var(--gray-color);
    text-align: center;
}

/* 合作伙伴样式 */
.partners {
    padding: 5rem 0;
    background-color: var(--white);
}

/* 页脚样式 */
.footer {
    background-color: var(--dark-color);
    color: var(--white);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-info h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.footer-info p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 1.5rem;
}

.footer-links h4,
.footer-contact h4 {
    margin-bottom: 1.5rem;
    color: var(--white);
}

.footer-links ul {
    list-style: none;
}

.footer-links ul li {
    margin-bottom: 1rem;
}

.footer-links ul li a {
    color: rgba(255, 255, 255, 0.7);
    transition: color 0.3s ease;
}

.footer-links ul li a:hover {
    color: var(--primary-color);
}

.footer-contact p {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 1rem;
}

.footer-contact p i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.7);
    transition: color 0.3s ease;
}

.footer-bottom a:hover {
    color: var(--primary-color);
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 简单的淡入动画类 */
.service-card,
.timeline-item,
.team-member,
.culture-item {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-in-visible {
    opacity: 1;
    transform: translateY(0);
}

/* 合作伙伴页面样式 */
.partners-section {
    padding: 5rem 0;
    background-color: var(--white);
}

.partners-section.overseas {
    background-color: var(--light-color);
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 2rem;
}

.partners-grid.international {
    grid-template-columns: repeat(4, 1fr);
    max-width: 900px;
    margin: 0 auto;
}

.partner-logo {
    background-color: var(--white);
    border-radius: 10px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    aspect-ratio: 3/2;
}

.partner-logo:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.partner-logo img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    filter: grayscale(100%);
    transition: filter 0.3s ease;
}

.partner-logo:hover img {
    filter: grayscale(0%);
}

/* 合作优势样式 */
.cooperation-section {
    padding: 5rem 0;
    background-color: var(--white);
}

/* Logo墙样式 */
.logo-wall-section {
    padding: 5rem 0;
    background-color: var(--white);
}

.logo-wall-section.overseas {
    background-color: var(--light-color);
}

.logo-wall-container {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s ease-out;
}

.logo-wall-container.fade-in-visible {
    opacity: 1;
    transform: translateY(0);
}

.logo-wall {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
}

.logo-wall-image {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.4s ease-out;
    border: 2px solid transparent;
}

/* 优雅的淡入动画 */
.logo-wall-container:nth-child(odd) {
    transform: translateX(-30px) translateY(40px);
    transition-delay: 0.1s;
}

.logo-wall-container:nth-child(even) {
    transform: translateX(30px) translateY(40px);
    transition-delay: 0.2s;
}

.logo-wall-container.fade-in-visible:nth-child(odd),
.logo-wall-container.fade-in-visible:nth-child(even) {
    transform: translateX(0) translateY(0);
}

/* 简洁悬停效果 */
.logo-wall-container:hover .logo-wall-image {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
}



/* 响应式设计 */
@media (max-width: 992px) {
    .about-content,
    .product-content,
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .product-content.reverse {
        direction: ltr;
    }
    
    .contact-content {
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .hero-content h2 {
        font-size: 2.5rem;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        padding: 2rem;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        transition: left 0.3s ease;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .timeline::before {
        left: 30px;
    }
    
    .timeline-item {
        width: 100%;
        padding-left: 60px;
        padding-right: 0;
        text-align: left;
    }
    
    .timeline-item:nth-child(odd),
    .timeline-item:nth-child(even) {
        left: 0;
        padding-left: 60px;
        padding-right: 0;
    }
    
    .timeline-item::after {
        left: 23px;
    }
    
    .form-group {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .feature-item:hover {
        transform: translateY(-10px);
    }
    
    .partners-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1rem;
    }
    
    .partners-grid.international {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .partner-logo {
        padding: 1rem;
    }

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

@media (max-width: 576px) {
    .hero-content h2 {
        font-size: 2rem;
    }
    
    .page-header h2 {
        font-size: 2rem;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    .about-content,
    .product-content,
    .contact-content {
        gap: 2rem;
    }
    
    .service-card,
    .culture-item,
    .contact-item {
        padding: 1.5rem;
    }
    
    .contact-form {
        padding: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

/* 图片放大模态框样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    animation: fadeIn 0.3s ease-out;
}

.modal-content {
    margin: auto;
    display: block;
    max-width: 90%;
    max-height: 90%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: zoomIn 0.3s ease-out;
}

.close {
    position: absolute;
    top: 15px;
    right: 35px;
    color: #fff;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    z-index: 1001;
    transition: color 0.3s ease;
}

.close:hover {
    color: #ff6b35;
}

#caption {
    position: absolute;
    bottom: 20px;
    left: 0;
    width: 100%;
    text-align: center;
    color: #fff;
    font-size: 16px;
    padding: 10px;
    background-color: rgba(0, 0, 0, 0.5);
}

/* 点击放大效果的图片样式 */
.product-image-animated,
.about-image-animated,
.team-photo-animated,
.env-image-animated {
    cursor: pointer;
    transition: all 0.3s ease;
}

.product-image-animated:hover,
.about-image-animated:hover,
.team-photo-animated:hover,
.env-image-animated:hover {
    opacity: 0.9;
}

/* 画廊模态框样式 */
.gallery-modal .gallery-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    color: white;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    padding: 20px;
    background-color: rgba(0, 0, 0, 0.3);
    border-radius: 5px;
    transition: all 0.3s ease;
    user-select: none;
    z-index: 1001;
}

.gallery-modal .gallery-nav:hover {
    background-color: rgba(0, 0, 0, 0.6);
    color: #ff6b35;
}

.gallery-modal .gallery-prev {
    left: 20px;
}

.gallery-modal .gallery-next {
    right: 20px;
}

.gallery-modal .gallery-counter {
    position: absolute;
    bottom: 60px;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    font-size: 16px;
    background-color: rgba(0, 0, 0, 0.5);
    padding: 8px 16px;
    border-radius: 20px;
    z-index: 1001;
}

/* 动画效果 */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes zoomIn {
    from { transform: translate(-50%, -50%) scale(0.8); opacity: 0; }
    to { transform: translate(-50%, -50%) scale(1); opacity: 1; }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .modal-content {
        max-width: 95%;
        max-height: 80%;
    }
    
    .close {
        top: 10px;
        right: 20px;
        font-size: 30px;
    }
    
    #caption {
        font-size: 14px;
        bottom: 10px;
    }
}