* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background-color: #f8f9fa;
            color: #333;
            line-height: 1.6;
        }
        
        /* 导航栏样式 */
        .navbar {
            background-color: #1e1e33;
            height: 100px;
            display: flex;
            align-items: center;
            padding: 0 14%;
            position: relative;
            box-shadow: 0 2px 15px rgba(0, 0, 0, 0.2);
        }
        
        .logo {
            position: absolute;
            left: 28%;
            transform: translateX(-50%);
        }
        
        .logo img {
            height: 60px;
            transition: transform 0.3s;
        }
        
        .logo img:hover {
            transform: scale(1.05);
        }
        
        .nav-links {
            position: absolute;
            left: 38%;
            display: flex;
            gap: 35px;
        }
        
        .nav-links a {
            color: #fff;
            text-decoration: none;
            font-size: 16px;
            font-weight: 500;
            padding: 8px 12px;
            border-radius: 4px;
            transition: all 0.3s;
        }
        
        .nav-links a:hover {
            color: #4ecdc4;
            background-color: rgba(255, 255, 255, 0.1);
        }
        
        /* 合作伙伴区域 */
        .partners-section {
            background: linear-gradient(rgba(30, 30, 51, 0.85), rgba(30, 30, 51, 0.9)), url('https://www.nbshengtuo.com/hezuo/bg1.webp') center/cover;
            padding: 80px 5%;
            text-align: center;
            color: white;
            position: relative;
            overflow: hidden;
        }
        
        .section-title {
            font-size: 2.5rem;
            margin-bottom: 20px;
            color: #fff;
            position: relative;
            display: inline-block;
        }
        
        .section-title:after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background: #4ecdc4;
        }
        
        .partners-container {
            max-width: 1400px;
            margin: 60px auto;
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            grid-template-rows: repeat(5, 1fr);
            gap: 30px;
            justify-items: center;
            align-items: center;
        }
        
        .partner-item {
            width: 120px;
            height: 120px;
            perspective: 1000px;
            transition: transform 0.3s;
        }
        
        .partner-item:hover {
            z-index: 10;
            transform: scale(1.1);
        }
        
        .partner-inner {
            position: relative;
            width: 100%;
            height: 100%;
            transition: transform 0.8s;
            transform-style: preserve-3d;
            cursor: pointer;
        }
        
        .partner-item:hover .partner-inner {
            transform: rotateY(180deg);
        }
        
        .partner-front, .partner-back {
            position: absolute;
            width: 100%;
            height: 100%;
            backface-visibility: hidden;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: white;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
        }
        
        .partner-front img {
            width: 70%;
            height: auto;
            border-radius: 8px;
        }
        
        .partner-back {
            transform: rotateY(180deg);
            display: flex;
            align-items: center;
            justify-content: center;
            background: white;
        }
        
        .partner-back img {
            width: 70%;
            height: auto;
            border-radius: 8px;
        }
        
        /* 联系方式区域 */
        .contact-section {
            padding: 50px 5%;
            text-align: center;
            background: #fff;
        }
        
        .contact-content {
            max-width: 1000px;
            margin: 0 auto;
        }
        
        .contact-title {
            font-size: 2.2rem;
            color: #1e1e33;
            margin-bottom: 25px;
        }
        
        .contact-text {
            font-size: 1.2rem;
            margin-bottom: 30px;
            color: #555;
        }
        
        .contact-info {
            display: flex;
            justify-content: space-around;
            gap: 20px;
            flex-wrap: wrap;
            margin-top: 30px;
        }
        
        .contact-item {
            display: flex;
            align-items: center;
            gap: 15px;
            font-size: 1.1rem;
            min-width: 250px;
        }
        
        .contact-icon {
            background: #4ecdc4;
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            flex-shrink: 0;
        }
        
        /* 响应式设计 */
        @media (max-width: 1200px) {
            .navbar {
                padding: 0 5%;
            }
            
            .logo {
                left: 20%;
            }
            
            .nav-links {
                left: 30%;
                gap: 25px;
            }
            
            .partners-container {
                gap: 20px;
            }
            
            .partner-item {
                width: 100px;
                height: 100px;
            }
        }
        
        @media (max-width: 992px) {
            .navbar {
                flex-direction: column;
                height: auto;
                padding: 20px;
            }
            
            .logo {
                position: static;
                transform: none;
                margin-bottom: 15px;
            }
            
            .nav-links {
                position: static;
                flex-wrap: wrap;
                justify-content: center;
                gap: 15px;
            }
            
            .partners-container {
                grid-template-columns: repeat(4, 1fr);
                grid-template-rows: repeat(8, 1fr);
                gap: 15px;
            }
            
            .partner-item {
                width: 80px;
                height: 80px;
            }
            
            .contact-info {
                flex-direction: row;
                align-items: center;
                gap: 25px;
            }
            
            .contact-item {
                justify-content: center;
                text-align: left;
                min-width: 200px;
            }
        }
        
        @media (max-width: 768px) {
            .partners-container {
                grid-template-columns: repeat(3, 1fr);
                grid-template-rows: repeat(10, 1fr);
                gap: 12px;
            }
            
            .partner-item {
                width: 70px;
                height: 70px;
            }
            
            .section-title {
                font-size: 2rem;
            }
            
            .contact-title {
                font-size: 1.8rem;
            }
            
            .contact-text {
                font-size: 1rem;
            }
            
            .contact-info {
                flex-direction: column;
                gap: 20px;
            }
            
            .contact-item {
                flex-direction: row;
                justify-content: flex-start;
                min-width: 100%;
            }
        }
        
        @media (max-width: 576px) {
            .nav-links {
                gap: 10px;
            }
            
            .nav-links a {
                font-size: 14px;
                padding: 6px 10px;
            }
            
            .partners-container {
                grid-template-columns: repeat(3, 1fr);
                grid-template-rows: repeat(10, 1fr);
                gap: 10px;
            }
            
            .partner-item {
                width: 80px;
                height: 80px;
            }
            
            .section-title {
                font-size: 1.8rem;
            }
            
            .contact-title {
                font-size: 1.6rem;
            }
            
            .contact-item {
                flex-direction: column;
                text-align: center;
                gap: 10px;
            }
            
            .contact-info {
                flex-direction: column;
            }
        }

        @media (max-width: 400px) {
            .partners-container {
                grid-template-columns: repeat(2, 1fr);
                gap: 8px;
            }
            
            .partner-item {
                width: 70px;
                height: 70px;
            }
        }

        /* 动画效果 */
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .fade-in {
            animation: fadeIn 0.8s ease forwards;
        }