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

:root {
    --primary-color: #1a1a1a;
    --secondary-color: #666;
    --accent-color: #0066cc;
    --light-bg: #ffffff;
    --gray-bg: #f8f9fa;
    --border-color: #e5e5e5;
    --text-primary: #1a1a1a;
    --text-secondary: #666666;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    line-height: 1.7;
    color: var(--text-primary);
    background-color: var(--light-bg);
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 40px;
}

/* 图片模态框样式 */
.image-modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.modal-content {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.5);
    animation: modalFadeIn 0.3s ease;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 30px;
    color: #ffffff;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s ease;
    z-index: 10000;
    line-height: 1;
}

.modal-close:hover {
    color: #0066cc;
}

/* 可缩放图片样式 */
.zoomable {
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.zoomable:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

/* 导航栏 */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 1.2rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 3rem;
}

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.2s;
    position: relative;
}

.nav-menu a:hover {
    color: var(--text-primary);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: width 0.3s;
}

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

/* 首页横幅 */
.hero {
    background: linear-gradient(135deg, #f5f7fa 0%, #e8ecf1 100%);
    color: var(--text-primary);
    text-align: center;
    padding: 40px 20px 20px;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
    letter-spacing: -1px;
    line-height: 1.2;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 3rem;
    color: var(--text-secondary);
    font-weight: 400;
}

.btn {
    display: inline-block;
    padding: 14px 36px;
    background: var(--text-primary);
    color: #fff;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    font-size: 0.95rem;
}

.btn:hover {
    background: #333;
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

/* 公司场景 */
.scene {
    padding: 10px 0;
    background: var(--gray-bg);
}

.scene-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(600px, 1fr));
    gap: 40px;
}

.scene-item {
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.scene-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

.scene-item img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

/* 产品展示 */
.products {
    padding: 100px 0;
    background: var(--light-bg);
}

.section-title {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 4rem;
    color: var(--text-primary);
    font-weight: 600;
    letter-spacing: -0.5px;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
}

.product-card {
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: 1px solid var(--border-color);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

.product-card img {
    width: 100%;
    height: 280px;
    object-fit: contain;
    transition: transform 0.5s;
    background: #f5f5f5;
    padding: 10px;
}

.product-card:hover img {
    transform: scale(1.03);
}

.product-card h3 {
    padding: 24px 24px 8px;
    font-size: 1.25rem;
    color: var(--text-primary);
    font-weight: 600;
}

.product-card p {
    padding: 0 24px 24px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* 产品特点 */
.features {
    padding: 100px 0;
    background: var(--gray-bg);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.feature-item {
    background: #fff;
    padding: 50px 40px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--border-color);
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
}

.feature-item h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-weight: 600;
}

.feature-item p {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 0.95rem;
}

/* 联系我们 */
.contact {
    padding: 100px 0;
    background: var(--gray-bg);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-info {
    width: 100%;
}

.contact-info h3 {
    font-size: 1.6rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-weight: 600;
}

.contact-info > p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
    font-size: 1rem;
}

.contact-details p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
    font-size: 1rem;
}

.contact-info > div > p {
    white-space: normal;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.contact-row {
    display: flex;
    gap: 2rem;
    align-items: center;
    flex-wrap: wrap;
}

.contact-row p {
    margin: 0;
}

.contact-row img {
    max-width: 200px;
    height: auto;
    display: inline-block;
    vertical-align: middle;
}

.contact-row {
    display: flex;
    gap: 40px;
    margin-bottom: 1rem;
}

.contact-row p {
    margin-bottom: 0;
    flex: 1;
}

.contact-info p a {
    color: #2196F3;
    text-decoration: none;
    font-weight: 500;
}

.contact-info p a:hover {
    color: #1976D2;
    text-decoration: underline;
}

/* 社交联系方式 */
.social-links {
    background: #fff;
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
    border: 1px solid var(--border-color);
}

.social-links h3 {
    font-size: 1.6rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-weight: 600;
}

.social-links > p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
    font-size: 1rem;
}

.social-buttons {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.social-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 18px 24px;
    border-radius: 10px;
    text-decoration: none;
    color: #fff;
    font-weight: 500;
    transition: all 0.3s;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    font-size: 1rem;
}

.social-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.social-btn.whatsapp {
    background: linear-gradient(135deg, #25D366, #128C7E);
}

.social-btn.wechat {
    background: linear-gradient(135deg, #07C160, #06AD56);
}

.social-btn.telegram {
    background: linear-gradient(135deg, #0088cc, #006699);
}

.social-btn.email {
    background: linear-gradient(135deg, #667eea, #764ba2);
}

.social-icon {
    font-size: 1.4rem;
}

.social-text {
    font-size: 1rem;
    font-weight: 500;
}

/* 页脚 */
.footer {
    background: var(--text-primary);
    color: #fff;
    text-align: center;
    padding: 40px 0;
}

.footer p {
    margin: 0;
    font-size: 0.9rem;
    opacity: 0.8;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }

    .navbar .container {
        flex-direction: row;
        gap: 1rem;
    }

    .nav-menu {
        gap: 1rem;
        flex-wrap: nowrap;
        justify-content: flex-end;
    }

    .nav-menu a {
        font-size: 0.85rem;
    }

    .hero {
        padding: 100px 20px 60px;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .hero p {
        font-size: 1.1rem;
    }

    .section-title {
        font-size: 1.8rem;
        margin-bottom: 3rem;
    }

    .product-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 30px;
    }

    .feature-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .social-buttons {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.8rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .product-grid {
        grid-template-columns: 1fr;
    }

    .navbar .container {
        flex-direction: column;
        gap: 0.5rem;
    }

    .nav-menu {
        gap: 0.8rem;
        justify-content: center;
    }

    .nav-menu a {
        font-size: 0.8rem;
    }

    .feature-item {
        padding: 40px 30px;
    }
}

/* 平滑滚动 */
html {
    scroll-behavior: smooth;
}

/* 加载动画 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 图片查看器模态框 */
.image-modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.9);
    animation: modalFadeIn 0.3s;
}

@keyframes modalFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    margin: auto;
    display: block;
    width: 90%;
    max-width: 1200px;
    max-height: 90vh;
    object-fit: contain;
    animation: zoomIn 0.3s;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s ease-in;
}

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

.modal-close {
    position: absolute;
    top: 20px;
    right: 35px;
    color: #f1f1f1;
    font-size: 40px;
    font-weight: bold;
    transition: 0.3s;
    cursor: pointer;
    z-index: 10000;
}

.modal-close:hover,
.modal-close:focus {
    color: #bbb;
    text-decoration: none;
    cursor: pointer;
}

/* 产品卡片图片添加点击提示 */
.product-card img,
.scene-item img {
    cursor: pointer;
    transition: transform 0.5s;
}

.product-card img:hover,
.scene-item img:hover {
    transform: scale(1.03);
}

/* 可放大图片样式 */
.zoomable {
    cursor: zoom-in;
}

.product-card,
.feature-item {
    animation: fadeIn 0.6s ease-out;
}

/* 图片加载占位符 */
img {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 200px;
}

/* 添加更现代的滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a1a1a1;
}

/* 响应式设计 - 平板设备 */
@media (max-width: 1024px) {
    .container {
        padding: 0 30px;
    }

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

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero p {
        font-size: 1.1rem;
    }
}

/* 响应式设计 - 手机设备 */
@media (max-width: 768px) {
    /* Contact区域优化 */
    .contact-info h3 {
        font-size: 1.5rem;
    }

    .contact-info > p {
        font-size: 0.95rem;
        margin-bottom: 1.5rem;
    }

    .contact-details p {
        font-size: 0.95rem;
        line-height: 1.6;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }

    .contact-row {
        flex-direction: column;
        gap: 20px;
        align-items: flex-start;
    }

    .contact-row p {
        font-size: 0.95rem;
        margin-bottom: 0;
    }

    .contact-row img {
        max-width: 180px;
    }

    /* 容器调整 */
    /* 容器调整 */
    .container {
        padding: 0 20px;
    }

    /* 导航栏 */
    .navbar {
        padding: 15px 0;
    }

    .nav-links {
        gap: 15px;
    }

    .nav-links a {
        font-size: 14px;
        padding: 8px 12px;
    }

    /* Hero区域 */
    .hero {
        padding: 80px 0;
    }

    .hero h1 {
        font-size: 2rem;
        line-height: 1.3;
    }

    .hero p {
        font-size: 1rem;
        margin-bottom: 25px;
    }

    .hero .btn {
        padding: 12px 30px;
        font-size: 16px;
    }

    /* 产品网格 */
    .product-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    /* 产品卡片 */
    .product-card {
        padding: 15px;
    }

    .product-card img {
        max-height: 250px;
    }

    .product-card h3 {
        font-size: 1.2rem;
    }

    /* 场景展示 */
    .scene-gallery {
        grid-template-columns: 1fr;
    }

    /* 特性区域 */
    .features-grid {
        grid-template-columns: 1fr;
    }

    /* 章节标题 */
    .section-title {
        font-size: 1.8rem;
        margin-bottom: 30px;
    }

    /* 页脚 */
    .footer {
        padding: 40px 0;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }

    /* 模态框 */
    .modal-close {
        top: 15px;
        right: 20px;
        font-size: 35px;
    }

    .modal-content {
        max-width: 95%;
        max-height: 85%;
    }

    /* 图片加载占位符 */
    img {
        min-height: 150px;
    }

    /* 按钮触摸优化 */
    .btn {
        min-height: 44px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    /* 导航链接触摸优化 */
    .nav-links a {
        min-height: 44px;
        display: inline-flex;
        align-items: center;
    }
}

/* 响应式设计 - 小屏手机 */
@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero h1 {
        font-size: 1.6rem;
    }

    .hero p {
        font-size: 0.95rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .product-card {
        padding: 12px;
    }

    .product-card img {
        max-height: 200px;
    }

    .product-card h3 {
        font-size: 1.1rem;
    }

    .nav-links {
        gap: 10px;
    }

    .nav-links a {
        font-size: 13px;
        padding: 6px 10px;
    }

    /* 模态框关闭按钮 */
    .modal-close {
        top: 10px;
        right: 15px;
        font-size: 30px;
    }

    /* Contact区域优化 */
    .contact-info h3 {
        font-size: 1.4rem;
    }

    .contact-info > p {
        font-size: 0.95rem;
        margin-bottom: 1.5rem;
    }

    .contact-details p {
        font-size: 0.9rem;
        line-height: 1.6;
    }

    .contact-row {
        flex-direction: column;
        gap: 15px;
        align-items: flex-start;
    }

    .contact-row p {
        font-size: 0.9rem;
    }

    .contact-row img {
        max-width: 150px;
    }
}

/* 横屏模式优化 */
@media (max-height: 500px) and (orientation: landscape) {
    .hero {
        padding: 40px 0;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .modal-content {
        max-height: 80%;
    }
}