/* 全局样式 */
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }
    
    body {
        font-family: 'Roboto', sans-serif;
        line-height: 1.6;
        color: #333;
        background: linear-gradient(135deg, #1A237E, #651FFF);
        overflow-x: hidden;
    }
    
    a {
        color: #1E90FF;
        text-decoration: none;
        transition: color 0.3s ease;
    }
    
    a:hover {
        color: #7B68EE;
    }
    
    /* 头部样式 */
    .hero {
        height: 100vh;
        display: flex;
        align-items: center;
        justify-content: center;
        background: url('https://images.gptkong.com/demo/sample1.png') center/cover no-repeat;
        position: relative;
    }
    
    .hero::after {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(26, 35, 126, 0.6);
    }
    
    .hero-content {
        position: relative;
        color: #fff;
        text-align: center;
        z-index: 1;
    }
    
    .hero-title {
        font-family: 'Quantum Sans', sans-serif;
        font-size: 48px;
        letter-spacing: 2px;
        color: #1E90FF;
        margin-bottom: 20px;
    }
    
    .hero-button {
        padding: 15px 30px;
        background: #651FFF;
        border: none;
        border-radius: 25px;
        color: #fff;
        font-size: 16px;
        cursor: pointer;
        transition: background 0.3s ease;
    }
    
    .hero-button:hover {
        background: #7B68EE;
    }
    
    /* 核心内容 */
    .core-content {
        padding: 60px 20px;
        background: #f9f9f9;
    }
    
    .core-content h2 {
        text-align: center;
        font-size: 36px;
        margin-bottom: 40px;
        color: #1A237E;
    }
    
    .grid-container {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
        max-width: 1200px;
        margin: 0 auto;
    }
    
    .grid-item {
        background: #fff;
        padding: 20px;
        border-radius: 10px;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }
    
    .grid-item:hover {
        transform: translateY(-10px);
        box-shadow: 0 8px 12px rgba(0,0,0,0.2);
    }
    
    .grid-item img {
        width: 100%;
        height: auto;
        border-radius: 8px;
        margin-bottom: 15px;
    }
    
    .grid-item h3 {
        font-size: 24px;
        margin-bottom: 10px;
        color: #1A237E;
    }
    
    .grid-item p {
        font-size: 16px;
        color: #555;
    }
    
    /* 示例文章区域 */
    .example-article {
        padding: 60px 20px;
        background: #fff;
    }
    
    .example-article h2 {
        font-size: 32px;
        margin-bottom: 20px;
        color: #1A237E;
    }
    
    .example-article h3 {
        font-size: 24px;
        margin-top: 30px;
        margin-bottom: 15px;
        color: #651FFF;
    }
    
    .example-article p {
        font-size: 16px;
        margin-bottom: 15px;
        color: #333;
    }
    
    .example-article pre {
        background: #f1f1f1;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        margin-bottom: 15px;
    }
    
    .example-article code {
        font-family: 'Courier New', Courier, monospace;
        color: #d63384;
    }
    
    .example-article table {
        width: 100%;
        border-collapse: collapse;
        margin-top: 20px;
    }
    
    .example-article th, .example-article td {
        border: 1px solid #ddd;
        padding: 10px;
        text-align: left;
    }
    
    .example-article th {
        background: #1A237E;
        color: #fff;
    }
    
    /* 底部联系方式 */
    .contact {
        padding: 40px 20px;
        background: #1A237E;
        color: #fff;
        text-align: center;
    }
    
    .contact h2 {
        font-size: 28px;
        margin-bottom: 20px;
    }
    
    .contact p {
        font-size: 16px;
        margin-bottom: 10px;
    }
    
    /* 装饰性粒子特效 */
    .particles {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        pointer-events: none;
        z-index: 0;
    }
    
    /* 响应式设计 */
    @media (max-width: 1440px) {
        .hero-title {
            font-size: 42px;
        }
        
        .core-content h2 {
            font-size: 30px;
        }
        
        .grid-container {
            grid-template-columns: repeat(3, 1fr);
        }
    }
    
    @media (max-width: 1200px) {
        .grid-container {
            grid-template-columns: repeat(2, 1fr);
        }
    }
    
    @media (max-width: 1024px) {
        .grid-container {
            grid-template-columns: 1fr;
        }
        
        .hero-title {
            font-size: 36px;
        }
        
        .core-content h2 {
            font-size: 28px;
        }
    }
    
    @media (max-width: 768px) {
        .hero-title {
            font-size: 32px;
        }
        
        .core-content h2 {
            font-size: 24px;
        }
    }
    
    @media (max-width: 480px) {
        .hero-title {
            font-size: 28px;
        }
        
        .core-content h2 {
            font-size: 20px;
        }
        
        .grid-container {
            grid-template-columns: 1fr;
        }
    }
    
    @media (max-width: 320px) {
        .hero-title {
            font-size: 24px;
        }
        
        .core-content h2 {
            font-size: 18px;
        }
    }
    
    /* 提示信息 */
    .reference-note {
        text-align: center;
        padding: 20px;
        background: #ffeb3b;
        color: #333;
        font-size: 14px;
    }
    
    /* 内部链接设置 */
    a {
        rel: nofollow;
    }
    
    /* 滚动动画 */
    .fade-in {
        opacity: 0;
        transform: translateY(20px);
        transition: all 0.6s ease-in-out;
    }
    
    .fade-in.visible {
        opacity: 1;
        transform: translateY(0);
    }