:root {
    --primary-blue: #1e88e5;
    --light-blue: #64b5f6;
    --dark-blue: #1565c0;
    --white: #ffffff;
    --light-gray: #f5f5f5;
    --text-gray: #333333;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--text-gray);
    padding-top: 80px; /* 为固定导航栏留出空间 */
}

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

/* 导航栏样式 */
.navbar {
    background-color: var(--white);
    padding: 0.5rem 2rem;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    padding: 5px 0;
}

.logo-img {
    height: 50px;
    width: auto;
    display: block;
    object-fit: contain;
}

.nav-links {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-links li a {
    color: var(--text-gray);
    text-decoration: none;
    padding: 0.5rem 1rem;
    transition: color 0.3s ease;
}

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

/* 页面头部样式 */
.page-header {
    background: linear-gradient(135deg, var(--primary-blue), var(--light-blue));
    color: var(--white);
    padding: 3rem 0;
    text-align: center;
    margin-bottom: 3rem;
}

.page-header h1 {
    font-size: 2.5rem;
    margin: 0;
}

/* 首页英雄区域 */
.hero {
    background: linear-gradient(135deg, var(--primary-blue), var(--light-blue));
    height: calc(100vh - 80px);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    padding: 0 20px;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background-color: var(--white);
    color: var(--primary-blue);
    text-decoration: none;
    border-radius: 5px;
    transition: transform 0.3s ease;
}

.cta-button:hover {
    transform: translateY(-3px);
}

/* 关于我们页面样式 */
.about-page {
    padding: 3rem 0;
}

.about-intro {
    text-align: center;
    margin-bottom: 3rem;
}

.about-intro h2 {
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 4rem;
}

.feature-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    text-align: center;
}

.feature-card i {
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.about-mission,
.about-vision {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem;
    background-color: var(--light-gray);
    border-radius: 10px;
}

.about-mission h2,
.about-vision h2 {
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

/* 联系我们部分样式 */
.contact-section {
    margin-top: 4rem;
    padding-top: 4rem;
    border-top: 1px solid var(--light-gray);
}

.contact-section h2 {
    color: var(--primary-blue);
    text-align: center;
    margin-bottom: 2rem;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info {
    display: grid;
    gap: 2rem;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.info-item i {
    font-size: 1.5rem;
    color: var(--primary-blue);
    margin-top: 0.3rem;
}

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

.contact-form {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
}

.contact-form h3 {
    color: var(--primary-blue);
    margin-bottom: 1.5rem;
    text-align: center;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid var(--light-gray);
    border-radius: 5px;
    font-size: 1rem;
}

.form-group textarea {
    height: 150px;
    resize: vertical;
}

/* 响应式设计补充 */
@media (max-width: 768px) {
    .about-features {
        grid-template-columns: 1fr;
    }

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

/* 页脚样式 */
footer {
    background-color: var(--dark-blue);
    color: var(--white);
    padding: 3rem 0 1rem;
    margin-top: 3rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: 2rem;
}

.footer-links a {
    color: var(--white);
    text-decoration: none;
    margin-left: 1rem;
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    body {
        padding-top: 60px;
    }

    .navbar {
        padding: 0.5rem 1rem;
    }

    .logo-img {
        height: 40px;
    }

    .nav-links {
        display: none;
    }

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

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

    .footer-links {
        margin-top: 1rem;
    }

    .footer-links a {
        display: block;
        margin: 0.5rem 0;
    }
}

/* 产品服务页面样式 */
.products-page {
    padding: 3rem 0;
    background-color: #f8f9fa;
}

.products-intro {
    text-align: center;
    margin-bottom: 4rem;
}

.products-intro h2 {
    color: var(--primary-blue);
    margin-bottom: 1rem;
    font-size: 2.5rem;
}

.products-intro p {
    color: var(--text-gray);
    font-size: 1.1rem;
    max-width: 800px;
    margin: 0 auto;
}

.products-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 4rem;
}

.product-category {
    background-color: var(--white);
    border-radius: 15px;
    padding: 2.5rem;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: transform 0.3s ease;
}

.product-category:hover {
    transform: translateY(-5px);
}

.product-category h3 {
    color: var(--primary-blue);
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.8rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--light-gray);
}

.product-category h3 i {
    font-size: 2rem;
    color: var(--primary-blue);
}

.product-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.product-item {
    background-color: var(--light-gray);
    padding: 1.5rem;
    border-radius: 10px;
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.product-item:hover {
    border-color: var(--primary-blue);
    background-color: var(--white);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.product-item h4 {
    color: var(--primary-blue);
    margin-bottom: 1rem;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.product-item h4:before {
    content: "•";
    color: var(--primary-blue);
    font-size: 1.5rem;
}

.product-item ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.product-item ul li {
    margin: 0.8rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-gray);
    font-size: 0.95rem;
}

.product-item ul li:before {
    content: "✓";
    color: var(--primary-blue);
    position: absolute;
    left: 0;
    font-size: 0.9rem;
}

/* 响应式设计补充 */
@media (max-width: 992px) {
    .product-list {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
    
    .product-category {
        padding: 2rem;
    }
}

@media (max-width: 768px) {
    .products-intro h2 {
        font-size: 2rem;
    }
    
    .product-category h3 {
        font-size: 1.5rem;
    }
    
    .product-list {
        grid-template-columns: 1fr;
    }
    
    .product-category {
        padding: 1.5rem;
    }
}

/* 客户支持页面样式 */
.support-page {
    padding: 3rem 0;
}

.support-intro {
    text-align: center;
    margin-bottom: 3rem;
}

.support-intro h2 {
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.support-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 4rem;
}

.support-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    text-align: center;
    transition: transform 0.3s ease;
}

.support-card:hover {
    transform: translateY(-5px);
}

.support-card i {
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.support-card h3 {
    color: var(--text-gray);
    margin-bottom: 1rem;
}

.support-card p {
    color: var(--text-gray);
    margin-bottom: 1rem;
}

.support-features {
    list-style: none;
    text-align: left;
    margin-top: 1rem;
}

.support-features li {
    margin: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-gray);
}

.support-features li:before {
    content: "✓";
    color: var(--primary-blue);
    position: absolute;
    left: 0;
}

.support-contact {
    text-align: center;
    margin-top: 4rem;
    padding-top: 4rem;
    border-top: 1px solid var(--light-gray);
}

.support-contact h2 {
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.contact-method {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
}

.contact-method i {
    font-size: 2rem;
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

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

.contact-method p {
    color: var(--text-gray);
}

/* 响应式设计补充 */
@media (max-width: 992px) {
    .support-grid,
    .contact-methods {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .support-grid,
    .contact-methods {
        grid-template-columns: 1fr;
    }
}

/* 联系我们页面样式 */
.contact-page {
    padding: 3rem 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.info-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
}

.info-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1.5rem;
}

.info-item i {
    font-size: 1.5rem;
    color: var(--primary-blue);
    margin-right: 1rem;
    margin-top: 0.2rem;
}

.info-content h3 {
    margin-bottom: 0.5rem;
}

.social-media {
    margin-top: 2rem;
}

.social-icons {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-icon {
    width: 40px;
    height: 40px;
    background-color: var(--primary-blue);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: transform 0.3s ease;
}

.social-icon:hover {
    transform: translateY(-3px);
}

.contact-form-container {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-gray);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-family: inherit;
}

.form-group textarea {
    resize: vertical;
}

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

.map-container h2 {
    color: var(--primary-blue);
    margin-bottom: 2rem;
}

.map {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
}

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

/* 响应式设计补充 */
@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }

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

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

/* 首页产品服务部分样式 */
.products {
    padding: 4rem 0;
    background-color: var(--light-gray);
}

.products h2 {
    color: var(--primary-blue);
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2.5rem;
}

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

.product-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    text-align: center;
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.product-card:hover {
    transform: translateY(-5px);
}

.product-card i {
    font-size: 2.5rem;
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.product-card h3 {
    color: var(--text-gray);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.product-card p {
    color: var(--text-gray);
    margin-bottom: 1rem;
}

.product-features {
    list-style: none;
    text-align: left;
    margin-top: 1rem;
    width: 100%;
}

.product-features li {
    margin: 0.8rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-gray);
    font-size: 0.95rem;
}

.product-features li:before {
    content: "✓";
    color: var(--primary-blue);
    position: absolute;
    left: 0;
}

/* 响应式设计补充 */
@media (max-width: 768px) {
    .product-grid {
        grid-template-columns: 1fr;
        padding: 0 1rem;
    }
    
    .product-card {
        padding: 1.5rem;
    }
}