/* Global Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Helvetica Neue', Arial, sans-serif;
}

:root {
    --primary-color: #1a3c6e;
    --secondary-color: #3498db;
    --accent-color: #f39c12;
    --text-color: #333;
    --light-text: #777;
    --white: #fff;
    --light-gray: #f5f5f5;
    --medium-gray: #e0e0e0;
    --dark-gray: #555;
    --section-padding: 80px 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 15px;
}

p {
    margin-bottom: 15px;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    /* 添加图片懒加载渐显效果 */
    opacity: 0;
    transition: opacity 0.3s ease;
}

img.loaded {
    opacity: 1;
}

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

a:hover {
    color: var(--secondary-color);
}

ul {
    list-style: none;
}

.btn {
    display: inline-block;
    background-color: var(--primary-color);
    color: var(--white);
    padding: 12px 25px;
    border-radius: 4px;
    text-transform: uppercase;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

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

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 36px;
    color: var(--primary-color);
    position: relative;
    padding-bottom: 15px;
    margin-bottom: 15px;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 70px;
    height: 3px;
    background-color: var(--accent-color);
}

.section-header p {
    font-size: 18px;
    color: var(--light-text);
}

/* Header Styles */
header {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 15px 0;
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
}

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

.logo h1 {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary-color);
    margin: 0;
    letter-spacing: 2px;
}

nav ul {
    display: flex;
}

nav ul li {
    margin-left: 30px;
}

nav ul li a {
    color: var(--text-color);
    font-weight: 600;
    font-size: 16px;
    transition: color 0.3s ease;
}

nav ul li a:hover {
    color: var(--secondary-color);
}

/* 激活状态的导航链接 */
nav ul li a.active {
    color: var(--secondary-color);
    font-weight: 700;
}

.mobile-menu-btn {
    display: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('images/slider/hero-background.jpg') no-repeat center center/cover;
    height: 80vh;
    display: flex;
    align-items: center;
    text-align: center;
    color: var(--white);
    margin-top: 70px;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-content h1 {
    font-size: 48px;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-content p {
    font-size: 20px;
    margin-bottom: 30px;
}

/* About Section */
.about {
    padding: var(--section-padding);
    background-color: var(--white);
}

.about-content {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 50px;
}

.about-text {
    flex: 1;
    min-width: 300px;
}

.about-text p {
    margin-bottom: 15px;
    color: var(--dark-gray);
}

.about-image {
    flex: 1;
    min-width: 300px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    overflow: hidden;
}

/* Products Section */
.products {
    padding: var(--section-padding);
    background-color: var(--light-gray);
}

.product-categories {
    display: flex;
    flex-direction: column;
    gap: 60px;
}

.product-category {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 40px;
    background-color: var(--white);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.product-category:nth-child(even) {
    flex-direction: row-reverse;
}

.product-image {
    flex: 1;
    min-width: 300px;
    border-radius: 8px;
    overflow: hidden;
}

.product-info {
    flex: 1.5;
    min-width: 300px;
}

.product-info h3 {
    font-size: 24px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.product-info p {
    color: var(--dark-gray);
    margin-bottom: 20px;
}

.product-info ul {
    margin-left: 20px;
}

.product-info ul li {
    margin-bottom: 10px;
    position: relative;
    padding-left: 25px;
    color: var(--dark-gray);
}

.product-info ul li::before {
    content: '\f00c';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    color: var(--secondary-color);
}

/* Contact Section */
.contact {
    padding: var(--section-padding);
    background-color: var(--white);
}

.contact-content {
    display: flex;
    flex-wrap: wrap;
    gap: 50px;
}

.contact-info {
    flex: 1;
    min-width: 300px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 30px;
}

.contact-item i {
    font-size: 24px;
    color: var(--primary-color);
    margin-right: 20px;
    margin-top: 5px;
}

.contact-item h4 {
    font-size: 18px;
    margin-bottom: 5px;
    color: var(--primary-color);
}

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

.contact-form {
    flex: 1.5;
    min-width: 300px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--medium-gray);
    border-radius: 4px;
    font-size: 16px;
    transition: border-color 0.3s ease;
}

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

.form-group textarea {
    resize: vertical;
}

/* Footer */
footer {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 60px 0 0;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    flex: 1;
    min-width: 250px;
}

.footer-logo h2 {
    font-size: 28px;
    margin-bottom: 10px;
}

.footer-logo p {
    color: rgba(255, 255, 255, 0.7);
}

.footer-links {
    flex: 1;
    min-width: 200px;
}

.footer-links h3,
.footer-social h3 {
    font-size: 18px;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-links h3::after,
.footer-social h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background-color: var(--accent-color);
}

.footer-links ul li {
    margin-bottom: 10px;
}

.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(--white);
}

.footer-social {
    flex: 1;
    min-width: 200px;
}

.social-icons {
    display: flex;
    gap: 15px;
}

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

.social-icons a:hover {
    background-color: var(--secondary-color);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding: 20px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    margin-bottom: 0;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

/* Responsive Styles */
@media (max-width: 992px) {
    .hero-content h1 {
        font-size: 36px;
    }
    
    .section-header h2 {
        font-size: 30px;
    }
    
    .product-category,
    .product-category:nth-child(even) {
        flex-direction: column;
    }
    
    .product-image {
        width: 100%;
    }
}

@media (max-width: 768px) {
    header {
        padding: 10px 0;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    nav ul {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: var(--white);
        flex-direction: column;
        align-items: center;
        padding-top: 40px;
        transition: left 0.3s ease;
        z-index: 999;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        overflow-y: auto; /* 允许长菜单滚动 */
        -webkit-overflow-scrolling: touch; /* 增强iOS滚动体验 */
    }
    
    nav ul.active {
        left: 0;
    }
    
    nav ul li {
        margin: 0 0 20px 0;
        width: 100%;
        text-align: center;
    }
    
    .hero {
        height: 70vh;
        margin-top: 60px;
    }
    
    .hero-content h1 {
        font-size: 28px;
    }
    
    .hero-content p {
        font-size: 16px;
    }
    
    .section-header h2 {
        font-size: 26px;
    }
    
    .section-header p {
        font-size: 16px;
    }
    
    .about-content,
    .contact-content {
        gap: 30px;
    }
    
    /* 改进轮播图在移动端的显示 */
    .slider-container {
        height: 60vh;
        min-height: 300px; /* 确保在小屏幕上有足够的高度 */
        margin-top: 60px;
    }
    
    .slide-content {
        padding: 15px;
    }
    
    .slide-content h2 {
        font-size: 24px;
        margin-bottom: 10px;
    }
    
    .slide-content p {
        font-size: 14px;
        margin-bottom: 15px;
        padding: 0 10px;
    }
    
    .slider-arrow {
        width: 35px;
        height: 35px;
        font-size: 16px;
        opacity: 0.8;
        background-color: rgba(0, 0, 0, 0.4);
    }
    
    /* 添加移动端的触摸滑动功能样式 */
    .slider {
        cursor: grab;
    }
    
    .slider:active {
        cursor: grabbing;
    }
    
    /* 减少移动端上不必要的动画和过渡，提高性能 */
    .value-card:hover,
    .team-member:hover,
    .product-item:hover,
    .case-study:hover {
        transform: none;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    }
    
    /* 轻量级卡片交互 */
    .value-card:active,
    .team-member:active,
    .product-item:active,
    .case-study:active {
        transform: scale(0.98);
    }
    
    /* 简化轮播图导航按钮，更易于在移动端点击 */
    .slider-arrow {
        opacity: 0.8;
        background-color: rgba(0, 0, 0, 0.4);
    }
    
    /* 改进产品卡片布局 */
    .product-category {
        padding: 20px 10px;
    }
    
    .product-info {
        padding: 15px 0;
    }
    
    .product-info h3 {
        font-size: 20px;
    }
    
    /* 优化客户案例展示 */
    .case-study {
        margin-bottom: 25px;
    }
    
    .case-study-content {
        padding: 15px;
    }
    
    .case-metrics {
        flex-wrap: wrap;
        justify-content: space-around;
    }
    
    .metric {
        width: 33%;
        margin-bottom: 10px;
    }
    
    /* 优化联系表单 */
    .contact-form {
        width: 100%;
    }
    
    .form-group {
        margin-bottom: 15px;
    }
    
    .form-group input,
    .form-group textarea {
        padding: 10px 12px;
        font-size: 14px;
    }
    
    /* 语言选择器优化 */
    .language-selector {
        margin: 10px 0;
        width: 100%;
    }
    
    .language-selector > a {
        justify-content: center;
        padding: 10px;
        border-top: 1px solid var(--medium-gray);
    }
    
    .language-dropdown {
        position: static;
        display: none;
        box-shadow: none;
        padding: 10px 0;
        background-color: var(--light-gray);
        width: 100%;
    }
    
    .language-selector:hover .language-dropdown,
    .language-selector.active .language-dropdown {
        display: block;
    }
    
    .language-dropdown li {
        text-align: center;
    }
    
    .language-dropdown li a {
        padding: 8px 0;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 24px;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 12px;
    }
    
    .section-header {
        margin-bottom: 25px;
    }
    
    .section-header h2 {
        font-size: 22px;
        padding-bottom: 10px;
    }
    
    .section-header p {
        font-size: 14px;
    }
    
    .product-category {
        padding: 15px 10px;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 25px;
        text-align: center;
    }
    
    .footer-links ul {
        justify-content: center;
    }
    
    .social-icons {
        justify-content: center;
    }
    
    /* 极小屏幕优化 */
    .slider-container {
        height: 50vh;
    }
    
    .slide-content h2 {
        font-size: 20px;
    }
    
    .slide-content p {
        font-size: 12px;
        margin-bottom: 10px;
    }
    
    .slide-content .btn {
        padding: 8px 15px;
        font-size: 11px;
    }
    
    .slider-controls {
        bottom: 10px;
    }
    
    .slider-dot {
        width: 8px;
        height: 8px;
        margin: 0 3px;
    }
    
    /* 优化商业价值区块 */
    .value-card {
        padding: 15px;
        margin-bottom: 15px;
    }
    
    .value-icon {
        width: 40px;
        height: 40px;
        font-size: 18px;
        margin-bottom: 10px;
    }
    
    .value-card h3 {
        font-size: 18px;
        margin-bottom: 8px;
    }
    
    .value-card p {
        font-size: 13px;
    }
    
    /* 优化联系区块 */
    .contact-item {
        margin-bottom: 15px;
    }
    
    .contact-item i {
        width: 35px;
        height: 35px;
        font-size: 16px;
    }
}

/* 触摸设备优化 */
@media (hover: none) {
    .btn:hover {
        transform: none;
    }
    
    .language-selector:hover .language-dropdown {
        display: none;
    }
    
    .language-selector.active .language-dropdown {
        display: block;
    }
}

/* 页面头部 */
.page-header {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 100px 0 60px;
    text-align: center;
}

.page-header h1 {
    font-size: 36px;
    margin-bottom: 10px;
}

.page-header p {
    font-size: 18px;
    opacity: 0.8;
}

/* 轮播图 */
.slider-container {
    position: relative;
    overflow: hidden;
    margin-top: 70px;
    height: 80vh;
}

.slider {
    display: flex;
    transition: transform 0.5s ease-in-out;
    height: 100%;
}

.slide {
    min-width: 100%;
    height: 100%;
    position: relative;
}

.slide-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.slide-content {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    background: rgba(0, 0, 0, 0.5);
    color: var(--white);
    padding: 20px;
}

.slide-content h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.slide-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    max-width: 800px;
}

.slider-controls {
    position: absolute;
    bottom: 20px;
    left: 0;
    right: 0;
    display: flex;
    justify-content: center;
    gap: 10px;
}

.slider-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.slider-dot.active {
    background-color: var(--white);
}

.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background-color: rgba(0, 0, 0, 0.5);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    cursor: pointer;
    transition: background-color 0.3s ease;
    z-index: 10;
}

.slider-arrow:hover {
    background-color: var(--primary-color);
}

.slider-arrow.prev {
    left: 20px;
}

.slider-arrow.next {
    right: 20px;
}

/* 关于页面样式 */
.about-page {
    padding: var(--section-padding);
    background-color: var(--white);
}

.about-section {
    margin-bottom: 60px;
}

.about-content.reverse {
    flex-direction: row-reverse;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.value-card {
    background-color: var(--light-gray);
    padding: 30px;
    border-radius: 8px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.value-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.value-icon {
    width: 70px;
    height: 70px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    margin: 0 auto 20px;
}

.value-card h3 {
    margin-bottom: 15px;
    color: var(--primary-color);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.team-member {
    background-color: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.team-member:hover {
    transform: translateY(-10px);
}

.member-image {
    height: 300px;
    overflow: hidden;
}

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

.team-member:hover .member-image img {
    transform: scale(1.1);
}

.team-member h3 {
    padding: 20px 20px 5px;
    color: var(--primary-color);
}

.team-member .position {
    padding: 0 20px;
    color: var(--secondary-color);
    font-weight: 600;
    margin-bottom: 10px;
}

.team-member p {
    padding: 0 20px 20px;
    color: var(--dark-gray);
}

/* 产品页面样式 */
.products-page {
    padding: var(--section-padding);
    background-color: var(--light-gray);
}

.product-categories-tabs {
    margin-bottom: 40px;
}

.tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.tab-button {
    padding: 10px 20px;
    background-color: var(--white);
    border: none;
    border-radius: 30px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

.tab-button.active {
    background-color: var(--primary-color);
    color: var(--white);
}

.tab-button:hover {
    background-color: var(--primary-color);
    color: var(--white);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

.product-item {
    background-color: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.product-item:hover {
    transform: translateY(-10px);
}

.product-image {
    height: 200px;
    overflow: hidden;
}

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

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

.product-details {
    padding: 20px;
}

.product-details h3 {
    margin-bottom: 10px;
    color: var(--primary-color);
}

.product-specs {
    color: var(--secondary-color);
    font-weight: 600;
    margin-bottom: 10px;
    font-size: 14px;
}

.product-details p {
    margin-bottom: 20px;
    color: var(--dark-gray);
}

.btn-sm {
    display: inline-block;
    background-color: var(--primary-color);
    color: var(--white);
    padding: 8px 15px;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s ease;
}

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

.cta-section {
    text-align: center;
    margin-top: 60px;
    padding: 40px;
    background-color: var(--white);
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.cta-section h2 {
    margin-bottom: 15px;
    color: var(--primary-color);
}

.cta-section p {
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    color: var(--dark-gray);
}

/* 联系页面样式 */
.contact-page {
    padding: var(--section-padding);
    background-color: var(--white);
}

.contact-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 50px;
    color: var(--dark-gray);
}

.contact-content {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 60px;
}

.contact-info {
    flex: 1;
    min-width: 300px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.contact-card {
    background-color: var(--light-gray);
    border-radius: 8px;
    overflow: hidden;
    height: 100%;
}

.contact-card-header {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 15px 20px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.contact-card-header i {
    font-size: 24px;
}

.contact-card-header h3 {
    margin: 0;
    font-size: 18px;
}

.contact-card-content {
    padding: 20px;
}

.location, .phone-item, .email-item {
    margin-bottom: 20px;
}

.location:last-child, .phone-item:last-child, .email-item:last-child {
    margin-bottom: 0;
}

.location h4, .phone-item h4, .email-item h4 {
    color: var(--primary-color);
    margin-bottom: 5px;
    font-size: 16px;
}

.note {
    margin-top: 15px;
    font-style: italic;
    color: var(--secondary-color);
}

.contact-form-container {
    flex: 1.5;
    min-width: 300px;
    background-color: var(--light-gray);
    padding: 30px;
    border-radius: 8px;
}

.contact-form-container h3 {
    margin-bottom: 20px;
    color: var(--primary-color);
    text-align: center;
}

.form-row {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 20px;
}

.form-row .form-group {
    flex: 1;
    min-width: 200px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--primary-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--medium-gray);
    border-radius: 4px;
    font-size: 16px;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    margin-top: 5px;
}

.checkbox-group label {
    margin: 0;
    font-weight: normal;
    font-size: 14px;
    color: var(--dark-gray);
}

.map-section {
    margin-top: 60px;
}

.map-section h3 {
    margin-bottom: 20px;
    color: var(--primary-color);
    text-align: center;
}

.map-container {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

/* 适应不同设备 */
@media (max-width: 992px) {
    .page-header {
        padding: 80px 0 40px;
    }
    
    .page-header h1 {
        font-size: 30px;
    }
    
    .slide-content h2 {
        font-size: 2rem;
    }
    
    .slide-content p {
        font-size: 1rem;
    }
    
    .slider-arrow {
        width: 40px;
        height: 40px;
        font-size: 20px;
    }
    
    .contact-content {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    .page-header {
        padding: 70px 0 30px;
    }
    
    .page-header h1 {
        font-size: 26px;
    }
    
    .slider-container {
        height: 60vh;
    }
    
    .slide-content h2 {
        font-size: 1.5rem;
    }
    
    .slide-content p {
        font-size: 0.9rem;
    }
    
    .slider-arrow {
        width: 35px;
        height: 35px;
        font-size: 18px;
    }
    
    .values-grid,
    .team-grid,
    .product-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }
}

@media (max-width: 480px) {
    .page-header {
        padding: 60px 0 25px;
    }
    
    .page-header h1 {
        font-size: 22px;
    }
    
    .slider-container {
        height: 50vh;
    }
    
    .slide-content h2 {
        font-size: 1.2rem;
    }
    
    .slide-content p {
        font-size: 0.8rem;
        margin-bottom: 15px;
    }
    
    .slider-arrow {
        width: 30px;
        height: 30px;
        font-size: 16px;
    }
    
    .slider-dot {
        width: 8px;
        height: 8px;
    }
    
    .values-grid,
    .team-grid,
    .product-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        flex-direction: column;
        gap: 0;
    }
}

/* 首页特殊样式 */
.cta-banner {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 60px 0;
    text-align: center;
}

.cta-banner h2 {
    font-size: 32px;
    margin-bottom: 15px;
}

.cta-banner p {
    font-size: 18px;
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.9;
}

.cta-banner .btn {
    background-color: var(--accent-color);
    font-size: 16px;
}

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

.testimonials {
    padding: var(--section-padding);
    background-color: var(--light-gray);
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.testimonial-card {
    background-color: var(--white);
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-10px);
}

.testimonial-content {
    margin-bottom: 20px;
    color: var(--dark-gray);
    font-style: italic;
    position: relative;
}

.testimonial-content::before {
    content: '\201C';
    font-size: 60px;
    color: var(--primary-color);
    opacity: 0.2;
    position: absolute;
    top: -20px;
    left: -10px;
}

.testimonial-author {
    display: flex;
    align-items: center;
}

.testimonial-author img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    margin-right: 15px;
    object-fit: cover;
}

.testimonial-author h4 {
    margin-bottom: 5px;
    color: var(--primary-color);
}

.testimonial-author p {
    font-size: 14px;
    color: var(--light-text);
}

@media (max-width: 992px) {
    .cta-banner h2 {
        font-size: 28px;
    }
    
    .cta-banner p {
        font-size: 16px;
    }
}

@media (max-width: 768px) {
    .cta-banner {
        padding: 40px 0;
    }
    
    .cta-banner h2 {
        font-size: 24px;
    }
    
    .cta-banner p {
        font-size: 15px;
    }
    
    .testimonial-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
}

@media (max-width: 480px) {
    .cta-banner {
        padding: 30px 0;
    }
    
    .cta-banner h2 {
        font-size: 20px;
    }
    
    .cta-banner p {
        font-size: 14px;
    }
    
    .testimonial-grid {
        grid-template-columns: 1fr;
    }
}

/* 冷萃咖啡流程页面样式 */
.process-page {
    padding: var(--section-padding);
    background-color: var(--white);
}

.process-intro {
    margin-bottom: 60px;
}

.intro-content {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 40px;
    margin-top: 30px;
}

.intro-text {
    flex: 1.2;
    min-width: 300px;
}

.intro-image {
    flex: 1;
    min-width: 300px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.intro-image img {
    width: 100%;
    height: auto;
    display: block;
}

.process-timeline {
    margin-bottom: 60px;
    background-color: var(--light-gray);
    padding: 40px;
    border-radius: 8px;
}

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

.timeline-header h3 {
    font-size: 24px;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.timeline {
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 25px;
    width: 3px;
    background-color: var(--primary-color);
}

.timeline-item {
    position: relative;
    padding-left: 70px;
    margin-bottom: 50px;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-number {
    position: absolute;
    left: 0;
    top: 0;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    z-index: 2;
}

.timeline-content {
    background-color: var(--white);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.timeline-content h4 {
    color: var(--primary-color);
    font-size: 20px;
    margin-bottom: 15px;
    border-bottom: 1px solid var(--medium-gray);
    padding-bottom: 10px;
}

.timeline-details {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
}

.timeline-text {
    flex: 1.5;
    min-width: 300px;
}

.timeline-text p {
    margin-bottom: 15px;
    color: var(--dark-gray);
}

.timeline-text p:last-child {
    margin-bottom: 15px;
}

.process-specs {
    margin-top: 15px;
    padding: 15px;
    background-color: rgba(52, 152, 219, 0.1);
    border-radius: 4px;
}

.process-specs li {
    margin-bottom: 5px;
    color: var(--dark-gray);
    position: relative;
    padding-left: 20px;
}

.process-specs li::before {
    content: '\f058';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    color: var(--secondary-color);
}

.timeline-image {
    flex: 1;
    min-width: 250px;
    border-radius: 6px;
    overflow: hidden;
}

.timeline-image img {
    width: 100%;
    height: auto;
    display: block;
}

.process-benefits {
    margin-bottom: 60px;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.benefit-card {
    background-color: var(--light-gray);
    border-radius: 8px;
    padding: 30px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.benefit-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.benefit-icon {
    width: 80px;
    height: 80px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    margin: 0 auto 20px;
}

.benefit-card h4 {
    font-size: 18px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

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

.cta-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
}

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

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

@media (max-width: 992px) {
    .timeline::before {
        left: 20px;
    }
    
    .timeline-number {
        width: 40px;
        height: 40px;
        font-size: 20px;
    }
    
    .timeline-item {
        padding-left: 60px;
    }
    
    .timeline-content h4 {
        font-size: 18px;
    }
}

@media (max-width: 768px) {
    .process-timeline {
        padding: 30px 20px;
    }
    
    .timeline-details {
        flex-direction: column;
    }
    
    .timeline-image {
        order: -1;
    }
}

@media (max-width: 480px) {
    .timeline::before {
        left: 15px;
    }
    
    .timeline-number {
        width: 30px;
        height: 30px;
        font-size: 16px;
    }
    
    .timeline-item {
        padding-left: 45px;
    }
    
    .timeline-content {
        padding: 20px;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
}

/* Business Value Section */
.business-value {
    padding: var(--section-padding);
    background-color: #f8f9fa;
}

.value-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.value-card {
    background-color: var(--white);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    text-align: center;
}

.value-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.value-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background-color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 32px;
}

.value-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.value-card p {
    color: var(--light-text);
    font-size: 15px;
    line-height: 1.6;
}

.value-cta {
    text-align: center;
    margin-top: 40px;
}

/* Responsive styles for business value section */
@media (max-width: 992px) {
    .value-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .value-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .value-card {
        padding: 25px;
    }
    
    .value-icon {
        width: 70px;
        height: 70px;
        font-size: 28px;
    }
}

@media (max-width: 480px) {
    .value-card h3 {
        font-size: 20px;
    }
    
    .value-card p {
        font-size: 14px;
    }
}

/* Financing Section */
.financing-section {
    margin-top: 60px;
    padding: 50px 0;
    background-color: #f8f9fa;
    border-radius: 8px;
}

.financing-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.financing-card {
    background-color: var(--white);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.financing-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.financing-card h3 {
    color: var(--primary-color);
    font-size: 22px;
    margin-bottom: 15px;
}

.financing-card p {
    margin-bottom: 20px;
    color: var(--light-text);
    line-height: 1.6;
}

.financing-cta {
    text-align: center;
    margin-top: 40px;
    padding: 0 15%;
}

.financing-cta p {
    margin-bottom: 20px;
    font-size: 18px;
    color: var(--dark-gray);
}

/* Responsive styles for financing section */
@media (max-width: 992px) {
    .financing-options {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .financing-cta {
        padding: 0 10%;
    }
}

@media (max-width: 768px) {
    .financing-options {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .financing-card {
        padding: 25px;
    }
    
    .financing-cta {
        padding: 0 5%;
    }
}

/* Case Studies Section */
.case-studies {
    padding: var(--section-padding);
    background-color: var(--white);
}

.case-studies-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.case-study {
    background-color: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.case-study:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.case-study-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.case-study-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.case-study-category {
    position: absolute;
    bottom: 0;
    left: 0;
    background-color: var(--primary-color);
    color: var(--white);
    padding: 8px 15px;
    font-size: 14px;
    font-weight: 600;
    border-top-right-radius: 8px;
}

.case-study-content {
    padding: 25px;
}

.case-study-content h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.case-metrics {
    display: flex;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--medium-gray);
}

.metric {
    text-align: center;
}

.metric-value {
    display: block;
    font-size: 24px;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 5px;
}

.metric-label {
    font-size: 12px;
    color: var(--light-text);
    display: block;
}

.case-study-content p {
    margin-bottom: 20px;
    font-size: 15px;
    line-height: 1.6;
    color: var(--light-text);
}

.case-studies-cta {
    text-align: center;
    margin-top: 40px;
}

/* Responsive styles for case studies */
@media (max-width: 992px) {
    .case-studies-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .case-studies-grid {
        grid-template-columns: 1fr;
    }
    
    .case-study-image {
        height: 180px;
    }
    
    .case-metrics {
        flex-wrap: wrap;
    }
    
    .metric {
        width: 33%;
        margin-bottom: 15px;
    }
}

@media (max-width: 480px) {
    .case-study-content h3 {
        font-size: 20px;
    }
    
    .metric-value {
        font-size: 20px;
    }
    
    .case-study-content p {
        font-size: 14px;
    }
}

/* 语言切换按钮样式 */
.language-selector {
    position: relative;
}

.language-selector > a {
    display: flex;
    align-items: center;
    gap: 5px;
}

.language-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background-color: var(--white);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    border-radius: 4px;
    padding: 10px 0;
    min-width: 120px;
    display: none;
    z-index: 1000;
}

.language-selector:hover .language-dropdown {
    display: block;
}

.language-dropdown li {
    margin: 0;
    padding: 0;
}

.language-dropdown li a {
    padding: 8px 15px;
    display: block;
    font-size: 14px;
    transition: background-color 0.3s ease;
}

.language-dropdown li a:hover {
    background-color: var(--light-gray);
}

@media (max-width: 768px) {
    .language-selector {
        margin: 0 0 20px 0;
    }
    
    .language-dropdown {
        position: static;
        display: block;
        box-shadow: none;
        padding: 10px 0 0 20px;
        background-color: transparent;
    }
    
    .language-dropdown li {
        margin-bottom: 10px;
    }
}

/* 回到顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 99;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

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

.back-to-top:hover {
    background-color: var(--secondary-color);
    transform: translateY(-3px);
}

/* 适应折叠屏和旋转屏幕 */
@media screen and (max-height: 500px) and (orientation: landscape) {
    .slider-container {
        height: 85vh; /* 横屏时调整轮播图高度 */
    }
    
    nav ul {
        height: 85vh;
        padding-top: 20px;
    }
    
    nav ul li {
        margin-bottom: 10px;
    }
}

/* 打印样式优化 */
@media print {
    header, 
    footer, 
    .slider-controls,
    .slider-arrow,
    .mobile-menu-btn,
    .back-to-top {
        display: none !important;
    }
    
    body {
        color: #000;
        background: #fff;
    }
    
    .container {
        width: 100%;
        max-width: none;
        padding: 0;
        margin: 0;
    }
    
    .about, 
    .products, 
    .contact {
        page-break-inside: avoid;
    }
    
    a {
        color: #000;
        text-decoration: underline;
    }
    
    .product-category {
        page-break-inside: avoid;
        break-inside: avoid;
    }
}

/* 移动设备特别优化 */
.mobile-device {
    /* 减少页面动画效果 */
    --transition-speed: 0.2s;
}

.mobile-device .slider-container,
.mobile-device .slider,
.mobile-device .slide-content,
.mobile-device .product-category,
.mobile-device .about-content,
.mobile-device .value-card,
.mobile-device .testimonial-card,
.mobile-device .case-study {
    transition: all var(--transition-speed) ease !important;
}

.mobile-device .btn:hover,
.mobile-device a:hover {
    transform: none !important;
}

/* 增强移动端点击区域 */
.mobile-device .btn,
.mobile-device nav ul li a,
.mobile-device .slider-dot,
.mobile-device .slider-arrow,
.mobile-device .footer-links a,
.mobile-device .social-icons a,
.mobile-device .back-to-top {
    padding: 12px !important; /* 增大点击区域 */
    min-height: 44px; /* iOS推荐的最小点击高度 */
    min-width: 44px; /* iOS推荐的最小点击宽度 */
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* 移动端表单优化 */
.mobile-device input,
.mobile-device textarea,
.mobile-device select,
.mobile-device button {
    font-size: 16px !important; /* 防止iOS自动缩放 */
}

/* 禁用长按弹出菜单（提高响应速度） */
.mobile-device img,
.mobile-device a {
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    user-select: none;
}

/* 增强页面滚动性能 */
.mobile-device {
    -webkit-overflow-scrolling: touch; /* 流畅滚动 */
    scroll-behavior: smooth; /* 平滑滚动 */
}

/* 优化移动端页面内容间距 */
@media (max-width: 480px) {
    section {
        padding: 40px 0 !important;
    }
    
    .container {
        padding: 0 15px;
    }
    
    p {
        margin-bottom: 10px;
    }
    
    h2 {
        margin-bottom: 12px;
    }
    
    .btn {
        margin-top: 5px;
        margin-bottom: 5px;
    }
}