/* 基础样式 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        html {
            scroll-behavior: smooth;
        }
        
        body {
            color: #333;
            line-height: 1.6;
        }
        
        a {
            text-decoration: none;
            color: #1a73e8;
        }
        
        a:hover {
            color: #0d47a1;
        }
        
        .container {
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        .section {
            padding: 70px 0;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 40px;
        }
        
        .section-title h2 {
            font-size: 2rem;
            color: #202124;
            margin-bottom: 10px;
        }
        
        .section-divider {
            width: 60px;
            height: 3px;
            background-color: #1a73e8;
            margin: 0 auto;
        }
        
        /* 导航栏样式 */
        header {
            background-color: white;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 100;
        }
        
        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        
        .logo {
            display: flex;
            align-items: center;
            font-size: 1.5rem;
            font-weight: bold;
            color: #202124;
        }
        
        .logo-icon {
            width: 40px;
            height: 40px;
            background-color: #1a73e8;
            color: white;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 10px;
        }
        
        .nav-links {
            display: flex;
            list-style: none;
        }
        
        .nav-links li {
            margin-left: 30px;
        }
        
        .nav-links a {
            color: #5f6368;
            font-weight: 500;
            transition: color 0.3s;
        }
        
        .nav-links a:hover {
            color: #1a73e8;
        }
        
        .menu-toggle {
            display: none;
            font-size: 1.5rem;
            cursor: pointer;
        }
        
        /* 英雄区域样式 */
        .hero {
            background: linear-gradient(135deg, #f5f7fa 0%, #e4eaf1 100%);
            padding: 100px 0 50px;
            text-align: center;
            margin-top: 25px;
        }
        
        .hero h1 {
            font-size: 2.5rem;
            margin-bottom: 20px;
            color: #202124;
        }
        
        .hero h1 span {
            color: #1a73e8;
        }
        
        .hero p {
            font-size: 1.1rem;
            max-width: 700px;
            margin: 0 auto 30px;
            color: #5f6368;
        }
        
        .btn {
            display: inline-block;
            padding: 12px 24px;
            background-color: #1a73e8;
            color: white;
            border-radius: 6px;
            font-weight: 500;
            transition: background-color 0.3s;
            margin: 0 10px 10px;
        }
        
        .btn:hover {
            background-color: #0d47a1;
            color: white;
        }
        
        .btn-outline {
            background-color: transparent;
            color: #1a73e8;
            border: 2px solid #1a73e8;
        }
        
        .btn-outline:hover {
            background-color: #1a73e8;
            color: white;
        }
        
        /* 公司简介样式 */
        .intro {
            background-color: white;
        }
        
        .intro-content {
            max-width: 800px;
            margin: 0 auto;
            text-align: left;
            font-size: 1.1rem;
            color: #5f6368;
            margin-bottom: 40px;
        }
        
        .stats {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 30px;
        }
        
        .stat-box {
            background-color: #f8f9fa;
            padding: 25px;
            border-radius: 8px;
            text-align: center;
            min-width: 150px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
        }
        
        .stat-number {
            font-size: 2rem;
            font-weight: bold;
            color: #1a73e8;
            margin-bottom: 10px;
        }
        
        .stat-text {
            color: #5f6368;
        }
        
        /* 项目展示样式 */
        .projects {
            background-color: #f8f9fa;
        }
        
        .project-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .project-card {
            background-color: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
            transition: transform 0.3s, box-shadow 0.3s;
        }
        
        .project-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        }
        
        .project-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        
        .project-category {
            position: absolute;
            top: 15px;
            left: 15px;
            background-color: #1a73e8;
            color: white;
            padding: 5px 10px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
        }
        
        .project-info {
            padding: 20px;
        }
        
        .project-info h3 {
            margin-bottom: 10px;
            color: #202124;
        }
        
        .project-info p {
            color: #5f6368;
        }
        
        .project-card .project-img-container {
            position: relative;
            height: 200px;
            overflow: hidden;
        }
        
        /* 荣誉资质样式 */
        .awards {
            background-color: white;
        }
        
        .awards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 40px;
        }
        
        .award-card {
            background-color: #f8f9fa;
            padding: 25px;
            border-radius: 8px;
            text-align: center;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
            transition: transform 0.3s;
        }
        
        .award-card:hover {
            transform: translateY(-5px);
        }
        
        .award-icon {
            width: 60px;
            height: 60px;
            background-color: rgba(26, 115, 232, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 15px;
            font-size: 1.5rem;
            color: #1a73e8;
        }
        
        .certificates {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
        }
        
        .certificate-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: 8px;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
            transition: transform 0.3s;
        }
        
        .certificate-img:hover {
            transform: scale(1.03);
        }
        
        /* 联系我们样式 */
        .contact {
            background-color: #f8f9fa;
        }
        
        .contact-card {
            background-color: white;
            border-radius: 8px;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
            padding: 30px;
        }
        
        .contact-info {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }
        
        .contact-item {
            display: flex;
            align-items: flex-start;
        }
        
        .contact-icon {
            width: 40px;
            height: 40px;
            background-color: rgba(26, 115, 232, 0.1);
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 15px;
            color: #1a73e8;
            flex-shrink: 0;
        }
        
        .contact-details h4 {
            margin-bottom: 5px;
            color: #202124;
        }
        
        .contact-details p {
            color: #5f6368;
        }
        
        .social-links {
            display: flex;
            gap: 15px;
            margin-top: 15px;
        }
        
        .social-link {
            width: 40px;
            height: 40px;
            background-color: rgba(26, 115, 232, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #1a73e8;
            transition: all 0.3s;
        }
        
        .social-link:hover {
            background-color: #1a73e8;
            color: white;
        }
        
        .map-container {
            height: 250px;
            border-radius: 8px;
            overflow: hidden;
            margin-top: 20px;
        }
        
        .map-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        /* 页脚样式 */
        footer {
            background-color: #202124;
            color: #dcdcdc;
            padding: 30px 0;
            text-align: center;
        }
        
        /* 回到顶部按钮 */
        .back-to-top {font-size:22px;
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 45px;
            height: 45px;
            background-color: #1a73e8;
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s;
            cursor: pointer;
        }
        
        .back-to-top.visible {
            opacity: 1;
            visibility: visible;
        }

/* 项目详情页样式 */
.project-detail {
    padding: 40px 0;
}

.project-meta {
    font-size: 0.9rem;
}

.project-gallery img {
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
}

.project-content p {
    color: #5f6368;
    line-height: 1.8;
}

.project-more {
    display: inline-block;
    margin-top: 15px;
    color: #1a73e8;
    font-weight: 500;
}

.project-more:hover {
    color: #0d47a1;
    text-decoration: underline;
}

/* 导航当前页高亮 */
.nav-links a.active {
    color: #1a73e8;
    font-weight: bold;
}

/* 公司简介页图片样式 */
.intro-photos img {
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
}

        
        /* 响应式样式 */
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 65px;
                left: 0;
                width: 100%;
                background-color: white;
                box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
                padding: 20px 0;
            }
            
            .nav-links.active {
                display: flex;
            }
            
            .nav-links li {
                margin: 0;
                padding: 10px 20px;
                border-bottom: 1px solid #f1f3f4;
            }
            
            .menu-toggle {
                display: block;
            }
            
            .hero h1 {
                font-size: 2rem;
            }
            
            .section-title h2 {
                font-size: 1.8rem;
            }
            
            .project-grid, .awards-grid, .certificates {
                grid-template-columns: 1fr;
            }
        }