:root {
    --primary-color: #2d763f;
    --text-color: #333;
    --light-bg: #f5f5f5;
    --white: #ffffff;
    --gradient-bg: linear-gradient(135deg, #2d763f 0%, #3d8b4e 100%);
}

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

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
}

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

/* 导航栏样式 */
.header {
    background-color: var(--white);
    box-shadow: 0 2px 15px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-image {
    width: 50px;
    height: 50px;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-title {
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-color);
}

.logo-subtitle {
    font-size: 14px;
    color: #666;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-size: 16px;
    transition: all 0.3s;
    position: relative;
    padding: 5px 0;
}

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

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

/* 主要内容区域 */
.hero {
    background: var(--gradient-bg);
    color: var(--white);
    padding: 160px 0 100px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><rect fill="%23fff" fill-opacity="0.1" width="100" height="100"/></svg>') repeat;
    opacity: 0.1;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.hero p {
    font-size: 20px;
    max-width: 600px;
    margin: 0 auto;
    opacity: 0.9;
}

/* 服务区域 */
.services {
    padding: 80px 0;
    background-color: var(--light-bg);
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
    color: var(--primary-color);
    font-size: 36px;
    position: relative;
    padding-bottom: 15px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--primary-color);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    padding: 0 20px;
}

.service-card {
    background: var(--white);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-bg);
    transform: scaleX(0);
    transition: transform 0.3s;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 20px;
}

.service-card p {
    color: #666;
    line-height: 1.8;
}

/* 底部样式 */
.footer {
    background-color: #1a1a1a;
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.footer-section h4 {
    margin-bottom: 20px;
    color: var(--white);
    font-size: 18px;
    position: relative;
    padding-bottom: 10px;
}

.footer-section h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--primary-color);
}

.footer-section p,
.footer-section a {
    color: #999;
    text-decoration: none;
    margin-bottom: 10px;
    display: block;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: var(--white);
}

.qrcode-container {
    display: flex;
    gap: 20px;
    justify-content: center;
}

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

.qrcode-image {
    width: 120px;
    height: 120px;
    margin-bottom: 10px;
    background: var(--white);
    padding: 5px;
    border-radius: 8px;
}

.qrcode-text {
    font-size: 14px;
    color: #999;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #333;
    color: #666;
    font-size: 14px;
}

/* 移动端菜单按钮 */
.menu-toggle {
    display: none;
    font-size: 24px;
    color: var(--primary-color);
    cursor: pointer;
    z-index: 1000;
}

/* 侧边导航样式 */
.sidebar {
    position: fixed;
    top: 0;
    left: -280px;
    width: 280px;
    height: 100vh;
    background: var(--white);
    box-shadow: 2px 0 10px rgba(0,0,0,0.1);
    transition: left 0.3s ease;
    z-index: 999;
    padding-top: 80px;
}

.sidebar.active {
    left: 0;
}

.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    display: none;
    z-index: 998;
}

.sidebar-overlay.active {
    display: block;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    .header {
        padding: 0 20px;
    }

    .nav {
        height: 70px;
    }

    .nav-links {
        display: none;
    }

    .sidebar .nav-links {
        display: flex;
        flex-direction: column;
        padding: 20px;
        margin-top: 0;
    }

    .sidebar .nav-links a {
        padding: 15px 0;
        font-size: 18px;
        border-bottom: 1px solid #eee;
    }

    .sidebar .nav-links a:last-child {
        border-bottom: none;
    }

    .logo-image {
        width: 40px;
        height: 40px;
    }

    .logo-title {
        font-size: 20px;
    }

    .logo-subtitle {
        font-size: 12px;
    }
    
    .hero h1 {
        font-size: 32px;
    }
    
    .hero p {
        font-size: 16px;
        padding: 0 20px;
    }

    .services-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .section-title {
        font-size: 28px;
    }

    .service-card {
        margin: 0 10px;
    }
    
    .qrcode-container {
        flex-direction: column;
        align-items: center;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
        padding: 0 20px;
    }
}

@media (min-width: 769px) {
    .sidebar {
        display: none;
    }
}