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

:root {
    --primary-color: #2E8B57;
    --primary-dark: #1f6b42;
    --secondary-color: #FFA500;
    --secondary-dark: #e59400;
    --light-color: #F8F9FA;
    --dark-color: #333333;
    --gray-light: #F5F7F8;
    --gray-medium: #E9ECEF;
    --gray-dark: #6C757D;
    --white: #FFFFFF;
    --shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    --transition: all 0.3s ease;
    --border-radius: 8px;
    --max-width: 1200px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: var(--gray-light);
    background-attachment: fixed;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* 页面特定背景 - 只修改透明度 */
.home-page {
    background: linear-gradient(rgba(248, 249, 250, 0.80), rgba(248, 249, 250, 0.90)), 
                url('../images/background-home.jpg') no-repeat center center fixed;
    background-size: cover;
}

.about-page {
    background: linear-gradient(rgba(248, 249, 250, 0.80), rgba(248, 249, 250, 0.90)), 
                url('../images/background-about.jpg') no-repeat center center fixed;
    background-size: cover;
}

.services-page {
    background: linear-gradient(rgba(248, 249, 250, 0.80), rgba(248, 249, 250, 0.90)), 
                url('../images/background-services.jpg') no-repeat center center fixed;
    background-size: cover;
}

.contact-page {
    background: linear-gradient(rgba(248, 249, 250, 0.80), rgba(248, 249, 250, 0.90)), 
                url('../images/background-contact.jpg') no-repeat center center fixed;
    background-size: cover;
}

/* 装饰性背景元素 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(46, 139, 87, 0.05) 0%, transparent 20%),
        radial-gradient(circle at 80% 70%, rgba(255, 165, 0, 0.05) 0%, transparent 20%),
        radial-gradient(circle at 40% 80%, rgba(46, 139, 87, 0.04) 0%, transparent 25%);
    z-index: -1;
}

/* 导航栏样式 */
.header {
    background-color: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 0.5rem 0;
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 1.5rem;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 1rem;
    text-decoration: none;
}

.logo {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.8rem;
    font-weight: bold;
}

.brand-text h1 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 0.2rem;
}

.brand-text p {
    font-size: 0.9rem;
    color: var(--gray-dark);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 1.5rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 500;
    font-size: 1.1rem;
    transition: var(--transition);
    padding: 0.5rem 0;
    position: relative;
}

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

.nav-links a.active {
    color: var(--primary-color);
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

.language-switcher {
    margin-left: 1rem;
    display: flex;
    gap: 0.5rem;
}

.lang-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
    font-size: 0.9rem;
}

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

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

/* 主要内容区域 */
.main-content {
    flex: 1;
    max-width: var(--max-width);
    margin: 2rem auto;
    padding: 0 1.5rem;
    width: 100%;
}

/* 英雄区域 */
.hero {
    text-align: center;
    padding: 4rem 0;
    margin-bottom: 3rem;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: var(--primary-dark);
    line-height: 1.2;
}

.hero p {
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto 2rem;
    color: var(--dark-color);
}

.cta-button {
    display: inline-block;
    background-color: var(--secondary-color);
    color: var(--white);
    padding: 1rem 2.5rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.cta-button:hover {
    background-color: var(--secondary-dark);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(255, 165, 0, 0.3);
}

/* 卡片和部分样式 */
.section {
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.2rem;
    color: var(--primary-dark);
    margin-bottom: 1.5rem;
    text-align: center;
    position: relative;
    padding-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-color: var(--secondary-color);
    border-radius: 2px;
}

.section-description {
    font-size: 1.1rem;
    color: var(--gray-dark);
    max-width: 800px;
    margin: 0 auto 3rem;
    text-align: center;
    line-height: 1.8;
}

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

.card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.card-img {
    width: 100%;
    height: 220px;
    background-color: var(--gray-medium);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-dark);
    font-size: 3rem;
}

.card-content {
    padding: 1.5rem;
}

.card-title {
    font-size: 1.5rem;
    color: var(--primary-dark);
    margin-bottom: 1rem;
}

.card-text {
    color: var(--gray-dark);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.btn-primary {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

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

/* 特色服务 */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.feature {
    text-align: center;
    padding: 2rem;
    background-color: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.feature-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

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

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

/* 联系表单 */
.contact-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-top: 2rem;
}

.contact-info {
    background-color: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

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

.contact-icon {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-right: 1rem;
    margin-top: 0.2rem;
    min-width: 30px;
}

.contact-details h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--primary-dark);
}

.contact-form {
    background-color: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--dark-color);
}

.form-control {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 1px solid var(--gray-medium);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(46, 139, 87, 0.2);
}

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

/* 页脚 */
.footer {
    background-color: var(--primary-dark);
    color: var(--white);
    padding: 3rem 0 1.5rem;
    margin-top: auto;
}

.footer-content {
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    padding: 0 1.5rem;
}

.footer-section h3 {
    font-size: 1.4rem;
    margin-bottom: 1.5rem;
    color: var(--white);
}

.footer-section p, .footer-section a {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
    margin-bottom: 0.8rem;
    display: block;
    text-decoration: none;
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--white);
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    margin-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

/* 服务详情页样式 */
.service-detail {
    background-color: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.service-detail h3 {
    color: var(--primary-dark);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.service-detail ul {
    padding-left: 1.5rem;
    margin: 1rem 0;
}

.service-detail li {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

/* 关于我们页面样式 */
.team-section {
    background-color: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-top: 2rem;
}

.team-photo {
    width: 100%;
    height: 300px;
    background-color: var(--gray-medium);
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-dark);
    font-size: 2rem;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    .mobile-toggle {
        display: block;
    }
    
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--white);
        flex-direction: column;
        padding: 1.5rem;
        box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
        gap: 1rem;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .nav-links li {
        margin: 0.5rem 0;
    }
    
    .language-switcher {
        margin-left: 0;
        margin-top: 1rem;
    }
    
    .hero {
        padding: 3rem 0;
    }
    
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
}

@media (max-width: 576px) {
    .nav-container {
        padding: 0 1rem;
    }
    
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .main-content {
        padding: 0 1rem;
    }
    
    .card-container {
        grid-template-columns: 1fr;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
    }
}
/* 为特定卡片添加背景图片 */
.card:nth-child(1) .card-img {
    background-image: url('../images/service1.jpg');
}

.card:nth-child(2) .card-img {
    background-image: url('../images/service2.jpg');
}

.card:nth-child(3) .card-img {
    background-image: url('../images/service3.jpg');
}

/* 团队图片 */
.team-section .team-photo {
    background-image: url('../images/team.jpg');
}
/* 邮箱地址不换行样式 */
.email-address {
    white-space: nowrap;
    display: inline-block;
    word-break: keep-all;
}

/* 在移动设备上的调整 */
@media (max-width: 768px) {
    .email-address {
        white-space: normal;
        word-break: break-all;
        font-size: 0.9rem;
    }
}

/* 确保页脚有足够空间 */
.footer-section {
    min-width: 280px;
}

/* 调整联系信息项 */
.contact-item {
    align-items: flex-start;
}

.contact-details {
    flex: 1;
    min-width: 0; /* 允许收缩 */
}

.contact-details p {
    overflow-wrap: anywhere;
}