/* 全局变量 */
:root {
    /* 颜色 */
    --primary-color: #0066cc;
    --secondary-color: #004d99;
    --accent-color: #ff6600;
    --text-color: #333333;
    --light-text: #666666;
    --bg-light: #f5f5f5;
    --bg-dark: #333333;
    --white: #ffffff;
    --border-color: #dddddd;

    /* 字体 */
    --font-family: 'Microsoft YaHei', Arial, sans-serif;
    --heading-font: 'Microsoft YaHei', Arial, sans-serif;

    /* 间距 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;

    /* 圆角 */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 16px;

    /* 阴影 */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.1);

    /* 过渡 */
    --transition: all 0.3s ease;
}

/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

/* 通用类 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

.section-padding {
    padding: var(--spacing-xl) 0;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--text-color);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background-color: var(--primary-color);
    margin: var(--spacing-sm) auto 0;
}

.section-description {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
    color: var(--light-text);
}

.bg-light {
    background-color: var(--bg-light);
}

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

/* 网格系统 */
.grid {
    display: grid;
    gap: var(--spacing-md);
}

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

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

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

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    font-weight: bold;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

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

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

.btn-secondary {
    background-color: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

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

.btn-whatsapp {
    background-color: #25D366;
    color: var(--white);
    margin-left: var(--spacing-sm);
}

.btn-whatsapp:hover {
    background-color: #128C7E;
}

.form-actions {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    margin-top: var(--spacing-md);
}

.form-actions .btn {
    margin-right: var(--spacing-sm);
}

.btn-whatsapp i {
    margin-right: var(--spacing-xs);
}

/* 顶部信息栏 */
.top-bar {
    background-color: var(--bg-dark);
    color: var(--white);
    padding: var(--spacing-xs) 0;
    font-size: 0.9rem;
}

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

.contact-info span {
    margin-right: var(--spacing-md);
}

.contact-info i {
    margin-right: var(--spacing-xs);
}

.language-select select {
    background-color: transparent;
    color: var(--white);
    border: 1px solid var(--white);
    padding: 2px var(--spacing-xs);
    border-radius: var(--border-radius-sm);
}

/* 主导航栏 */
.main-header {
    background-color: var(--white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.main-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-sm);
    min-height: 270px;
}

.logo img {
    height: 250px;
}

/* 主导航样式 */
.main-nav {
    position: fixed;
    top: 50%;
    right: 0;
    transform: translateY(-50%);
    z-index: 1000;
}

.main-nav ul {
    display: flex;
    flex-direction: column;
    gap: 0;
    background: #fff;
    border-radius: 4px 0 0 4px;
    box-shadow: -2px 0 5px rgba(0,0,0,0.1);
    min-width: 180px;
}

.main-nav li {
    width: 100%;
    position: relative;
}

.main-nav a {
    color: var(--text-color);
    font-weight: bold;
    padding: 15px 20px;
    display: block;
    position: relative;
    transition: all 0.3s ease;
    font-size: 14px;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--primary-color);
    background-color: #f5f5f5;
}

/* 下拉菜单 */
.dropdown {
    position: relative;
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: 0;
    right: 100%;
    background: #fff;
    box-shadow: -2px 0 5px rgba(0,0,0,0.1);
    min-width: 180px;
    z-index: 1000;
    border-radius: 4px 0 0 4px;
    padding: 8px 0;
}

.dropdown-menu li {
    display: block;
    padding: 0;
}

.dropdown-menu li a {
    display: block;
    padding: 12px 20px;
    color: #333;
    text-decoration: none;
    transition: background-color 0.3s;
    white-space: nowrap;
    font-weight: normal;
    font-size: 14px;
}

.dropdown-menu li a:hover {
    background-color: #f5f5f5;
    color: var(--primary-color);
}

.dropdown-menu li a::after {
    display: none;
}

.dropdown:hover .dropdown-menu {
    display: block;
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
}

.mobile-menu-btn span {
    display: block;
    width: 30px;
    height: 3px;
    background-color: var(--text-color);
    transition: var(--transition);
}

/* 页面标题 */
.page-title {
    background-color: var(--bg-light);
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.page-title h1 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-color);
}

.breadcrumb {
    color: var(--light-text);
}

.breadcrumb a {
    color: var(--primary-color);
}

/* 服务项目卡片 */
.service-item {
    background-color: var(--white);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.service-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.service-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.service-item h3 {
    margin-bottom: var(--spacing-sm);
}

.service-item p {
    color: var(--light-text);
    margin-bottom: var(--spacing-md);
}

/* 优势项目 */
.advantage-item {
    background-color: var(--white);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.advantage-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.advantage-features {
    text-align: left;
    margin-top: var(--spacing-sm);
}

.advantage-features li {
    margin-bottom: var(--spacing-xs);
    color: var(--light-text);
}

/* 流程时间线 */
.process-timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.process-timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background-color: var(--primary-color);
}

.process-item {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.process-number {
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    position: relative;
    z-index: 1;
}

.process-content {
    flex: 1;
    margin-left: var(--spacing-md);
}

.process-content h3 {
    margin-bottom: var(--spacing-xs);
}

.process-content p {
    color: var(--light-text);
}

/* 案例卡片 */
.case-item {
    background-color: var(--white);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.case-image {
    position: relative;
    overflow: hidden;
}

.case-image img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: var(--transition);
}

.case-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.case-overlay i {
    color: var(--white);
    font-size: 2rem;
}

.case-item:hover .case-image img {
    transform: scale(1.1);
}

.case-item:hover .case-overlay {
    opacity: 1;
}

.case-info {
    padding: var(--spacing-md);
}

.case-info h3 {
    margin-bottom: var(--spacing-sm);
}

.case-info p {
    color: var(--light-text);
}

/* 页脚 */
.main-footer {
    background-color: var(--bg-dark);
    color: var(--white);
    padding-top: var(--spacing-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.footer-section h4 {
    margin-bottom: var(--spacing-md);
    position: relative;
}

.footer-section h4::after {
    content: '';
    display: block;
    width: 30px;
    height: 2px;
    background-color: var(--primary-color);
    margin-top: var(--spacing-xs);
}

.footer-section p,
.footer-section li {
    margin-bottom: var(--spacing-xs);
    color: #999;
}

.footer-section i {
    margin-right: var(--spacing-xs);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.social-links a {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--primary-color);
}

.qrcode {
    width: 120px;
    border-radius: var(--border-radius-sm);
}

.footer-bottom {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-sm) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: #999;
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: var(--secondary-color);
}

/* 动画效果 */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* 悬停动画 */
.service-item,
.product-item,
.case-item,
.advantage-item {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-item:hover,
.product-item:hover,
.case-item:hover,
.advantage-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

/* 图标动画 */
.service-icon i,
.advantage-icon i,
.process-icon i {
    transition: transform 0.3s ease;
}

.service-item:hover .service-icon i,
.advantage-item:hover .advantage-icon i,
.process-item:hover .process-icon i {
    transform: scale(1.2);
}

/* 按钮动画 */
.btn {
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

/* 图片悬停效果 */
.case-image img,
.product-image img {
    transition: transform 0.6s ease;
}

.case-item:hover .case-image img,
.product-item:hover .product-image img {
    transform: scale(1.1);
}

.case-overlay {
    background: rgba(0, 0, 0, 0);
    transition: background-color 0.3s ease;
}

.case-item:hover .case-overlay {
    background: rgba(0, 0, 0, 0.7);
}

/* 链接动画 */
.main-nav a,
.footer-section a,
.read-more {
    position: relative;
}

.main-nav a::after,
.footer-section a::after,
.read-more::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

.main-nav a:hover::after,
.footer-section a:hover::after,
.read-more:hover::after {
    width: 100%;
}

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

.animate-fadeInUp {
    animation: fadeInUp 0.6s ease forwards;
}

/* 响应式动画调整 */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .container {
        max-width: 960px;
    }

    .hero-slider {
        height: 500px;
    }

    .slide-content h1 {
        font-size: 2.5rem;
    }
}

@media (max-width: 992px) {
    .container {
        max-width: 720px;
    }

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

    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }

    .hero-slider {
        height: 450px;
    }

    .slide-content {
        max-width: 600px;
    }

    .advantage-item,
    .service-item {
        padding: var(--spacing-md);
    }
}

@media (max-width: 768px) {
    .container {
        max-width: 540px;
        padding: 0 var(--spacing-md);
    }

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

    .top-bar {
        display: none;
    }

    .main-header {
        padding: var(--spacing-xs) 0;
    }

    .logo img {
        height: 125px;
    }

    .main-header .container {
        min-height: 145px;
    }

    .hero-slider {
        height: 400px;
    }

    .slide-content {
        padding: var(--spacing-md);
    }

    .slide-content h1 {
        font-size: 2rem;
        margin-bottom: var(--spacing-sm);
    }

    .slide-content p {
        font-size: 1rem;
        margin-bottom: var(--spacing-md);
    }

    .section-title {
        font-size: 2rem;
        margin-bottom: var(--spacing-md);
    }

    .advantage-item,
    .service-item,
    .case-item,
    .news-item {
        margin-bottom: var(--spacing-md);
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-section {
        margin-bottom: var(--spacing-md);
    }

    .social-links {
        justify-content: center;
    }

    .qrcode {
        margin: var(--spacing-md) auto;
    }

    .back-to-top {
        right: 20px;
        bottom: 20px;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    .hero-slider {
        height: 350px;
    }

    .slide-content h1 {
        font-size: 1.75rem;
    }

    .slide-content p {
        font-size: 0.9rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .section-description {
        font-size: 0.9rem;
    }

    .advantage-item,
    .service-item {
        padding: var(--spacing-sm);
    }

    .swiper-button-next,
    .swiper-button-prev {
        display: none;
    }

    .case-overlay i {
        font-size: 1.5rem;
    }

    .footer-bottom {
        padding: var(--spacing-sm) 0;
        font-size: 0.9rem;
    }

    .logo img {
        height: 100px;
    }

    .main-header .container {
        min-height: 120px;
    }
}

/* 在线客服 */
.online-service {
    position: fixed;
    right: 20px;
    bottom: 160px;
    z-index: 999;
    transform: translateZ(0);
}

.service-button {
    display: flex;
    align-items: center;
    padding: 12px 24px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    border-radius: 50px;
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.3);
    transition: all 0.3s ease;
    cursor: pointer;
}

.service-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 102, 204, 0.4);
}

.service-button i {
    margin-right: 8px;
    font-size: 1.2em;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
    }
}

.service-dialog {
    position: fixed;
    right: 30px;
    bottom: 100px;
    width: 320px;
    background-color: var(--white);
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    z-index: 1000;
    opacity: 0;
    transform: translateY(20px);
    animation: slideIn 0.3s ease forwards;
}

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

.service-dialog-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    border-radius: 12px 12px 0 0;
}

.service-dialog-header h3 {
    margin: 0;
    font-size: 1.2em;
    font-weight: 600;
}

.dialog-close {
    background: none;
    border: none;
    color: var(--white);
    font-size: 1.5em;
    cursor: pointer;
    padding: 0;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.dialog-close:hover {
    opacity: 1;
}

.service-dialog-content {
    padding: 20px;
}

.service-options {
    margin-bottom: 20px;
}

.service-option {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    margin-bottom: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.service-option:hover {
    background-color: var(--bg-light);
    border-color: var(--primary-color);
    transform: translateX(5px);
}

.service-option i {
    font-size: 1.5em;
    margin-right: 12px;
    color: var(--primary-color);
}

.service-option span {
    flex: 1;
    font-weight: 500;
}

.service-option small {
    color: var(--light-text);
    font-size: 0.9em;
}

.service-form {
    background-color: var(--bg-light);
    padding: 16px;
    border-radius: 8px;
}

.service-form h4 {
    margin: 0 0 16px;
    color: var(--text-color);
    font-size: 1.1em;
}

.service-form input,
.service-form textarea {
    width: 100%;
    padding: 10px;
    margin-bottom: 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    transition: border-color 0.3s ease;
}

.service-form input:focus,
.service-form textarea:focus {
    border-color: var(--primary-color);
    outline: none;
}

.service-form textarea {
    height: 100px;
    resize: vertical;
}

.service-form button {
    width: 100%;
    padding: 12px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

@media (max-width: 768px) {
    .service-dialog {
        right: 10px;
        left: 10px;
        width: auto;
        max-width: 400px;
        margin: 0 auto;
    }
    
    .service-button {
        padding: 10px 20px;
    }
    
    .service-option {
        padding: 10px;
    }
}

/* 轮播图 */
.hero-slider {
    height: 600px;
    background-color: var(--bg-dark);
}

.swiper-slide {
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
}

.swiper-slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
}

.slide-content {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-xl);
    text-align: center;
    color: var(--white);
    top: 50%;
    transform: translateY(-50%);
}

.slide-content h1 {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    opacity: 0;
    transform: translateY(20px);
    animation: slideUp 0.5s forwards;
}

.slide-content p {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0;
    transform: translateY(20px);
    animation: slideUp 0.5s 0.2s forwards;
}

.slide-content .btn {
    opacity: 0;
    transform: translateY(20px);
    animation: slideUp 0.5s 0.4s forwards;
}

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

/* Swiper导航按钮样式 */
.swiper-button-next,
.swiper-button-prev {
    color: var(--white);
    width: 50px;
    height: 50px;
    background-color: rgba(0, 0, 0, 0.5);
    border-radius: 50%;
    transition: var(--transition);
}

.swiper-button-next:hover,
.swiper-button-prev:hover {
    background-color: var(--primary-color);
}

.swiper-button-next::after,
.swiper-button-prev::after {
    font-size: 24px;
}

/* Swiper分页器样式 */
.swiper-pagination-bullet {
    width: 12px;
    height: 12px;
    background-color: var(--white);
    opacity: 0.5;
    transition: var(--transition);
}

.swiper-pagination-bullet-active {
    opacity: 1;
    background-color: var(--primary-color);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-slider {
        height: 400px;
    }

    .slide-content {
        padding: var(--spacing-md);
    }

    .slide-content h1 {
        font-size: 2rem;
    }

    .slide-content p {
        font-size: 1rem;
    }
}

/* 打印样式 */
@media print {
    .main-header,
    .main-nav,
    .hero-slider,
    .back-to-top,
    .online-service,
    .footer {
        display: none;
    }

    .container {
        max-width: 100%;
        padding: 0;
    }

    body {
        font-size: 12pt;
        line-height: 1.5;
    }

    a {
        text-decoration: none;
    }

    .section {
        page-break-inside: avoid;
    }

    img {
        max-width: 100% !important;
    }
}

/* 深色模式支持 */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-light: #1a1a1a;
        --bg-dark: #000000;
        --text-color: #ffffff;
        --light-text: #cccccc;
        --border-color: #333333;
    }

    .service-item,
    .advantage-item,
    .case-item,
    .news-item {
        background-color: #262626;
    }

    img {
        filter: brightness(0.8);
    }
}

/* 减少动画 */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* 3D产品查看器 */
.product-viewer {
    position: relative;
    width: 100%;
    height: 400px;
    background-color: var(--bg-light);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    margin-bottom: var(--spacing-md);
}

.product-viewer canvas {
    width: 100%;
    height: 100%;
}

.model-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: rgba(0, 0, 0, 0.7);
    color: var(--white);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    font-size: 0.9rem;
    display: none;
}

.model-controls {
    position: absolute;
    bottom: var(--spacing-sm);
    right: var(--spacing-sm);
    display: flex;
    gap: var(--spacing-xs);
}

.model-control-btn {
    background-color: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.model-control-btn:hover {
    background-color: var(--white);
    box-shadow: var(--shadow-md);
}

.model-control-btn i {
    font-size: 1.2rem;
    color: var(--text-color);
}

/* 设备展示 */
.equipment {
    padding: 60px 0;
    background-color: #f8f9fa;
}

.equipment-intro {
    max-width: 800px;
    margin: 0 auto 40px;
    text-align: center;
}

.equipment-item {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
    transition: transform 0.3s ease;
    overflow: hidden;
}

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

.equipment-image {
    position: relative;
    overflow: hidden;
    height: 250px;
}

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

.equipment-item:hover .equipment-image img {
    transform: scale(1.1);
}

.equipment-info {
    padding: 20px;
}

.equipment-info h3 {
    color: #333;
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.equipment-info p {
    color: #666;
    margin-bottom: 15px;
    line-height: 1.6;
}

.equipment-specs {
    list-style: none;
    padding: 0;
    margin: 0;
    border-top: 1px solid #eee;
    padding-top: 15px;
}

.equipment-specs li {
    color: #555;
    margin-bottom: 8px;
    padding-left: 20px;
    position: relative;
}

.equipment-specs li:before {
    content: "•";
    color: #007bff;
    position: absolute;
    left: 0;
}

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeIn 0.6s ease forwards;
}

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

/* 响应式设计 */
@media (max-width: 992px) {
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .equipment-image {
        height: 200px;
    }
}

@media (max-width: 768px) {
    .grid-3 {
        grid-template-columns: 1fr;
    }
    
    .equipment-image {
        height: 250px;
    }
    
    .equipment-info h3 {
        font-size: 1.3rem;
    }
}

/* 移动端响应式样式 */
@media screen and (max-width: 768px) {
    .main-nav {
        position: fixed;
        top: 60px;
        right: 0;
        transform: none;
        width: 100%;
        background: #fff;
        padding: 0;
        box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        display: none;
    }

    .main-nav.show {
        display: block;
    }

    .main-nav ul {
        box-shadow: none;
        border-radius: 0;
        width: 100%;
    }

    .dropdown-menu {
        position: static;
        box-shadow: none;
        display: none;
        padding-left: 20px;
        width: 100%;
    }

    .dropdown.active .dropdown-menu {
        display: block;
    }

    .mobile-menu-btn {
        display: flex;
    }
}