/* 全局重置 */
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    /* 文字与背景设置 */
    body {
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #000F4C, #6A11CB);
        color: #FFFFFF;
        line-height: 1.6;
    }

    /* 容器布局 */
    .container {
        width: 90%;
        max-width: 1200px;
        margin: 0 auto;
        padding: 20px;
    }

    /* 头部设计 */
    header {
        position: relative;
        text-align: center;
        padding: 100px 0;
        background: url('https://images.gptkong.com/demo/sample1.png') no-repeat center center;
        background-size: cover;
    }

    header::after {
        content: '智造未来';
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        font-size: 48px;
        font-weight: bold;
        text-shadow: 3px 3px 6px rgba(0, 0, 0, 0.7);
    }

    /* 模块化分区布局 */
    section {
        padding: 60px 0;
    }

    section.about {
        background: linear-gradient(135deg, #1E3799, #3B3B98);
    }

    section.case-studies {
        background: linear-gradient(135deg, #3B3B98, #1E3799);
    }

    section.tech-support {
        background: linear-gradient(135deg, #1E3799, #3B3B98);
    }

    /* 标题样式 */
    h1, h2, h3, h4, h5, h6 {
        font-family: 'Roboto', sans-serif;
        margin-bottom: 20px;
    }

    .title-3d {
        font-size: 36px;
        text-shadow: 2px 2px 4px rgba(0,0,0,0.5), 4px 4px 6px rgba(255,255,255,0.3);
    }

    /* 段落样式 */
    p {
        margin-bottom: 20px;
        font-size: 18px;
    }

    /* 代码块样式 */
    pre {
        background: rgba(173, 216, 230, 0.2);
        padding: 15px;
        border-radius: 8px;
        overflow-x: auto;
        font-family: 'Courier New', Courier, monospace;
        margin-bottom: 20px;
    }

    code {
        color: #FFD700;
        font-weight: bold;
    }

    /* 按钮样式 */
    .button {
        background-color: #1E3799;
        color: white;
        padding: 10px 20px;
        border: none;
        border-radius: 5px;
        cursor: pointer;
        transition: background-color 0.3s ease;
        text-decoration: none;
    }

    .button:hover {
        background-color: #3B3B98;
    }

    /* 图片样式 */
    .decorative-img {
        width: 100%;
        max-width: 320px;
        border-radius: 8px;
        margin-bottom: 20px;
    }

    /* 分割线样式 */
    .divider {
        height: 3px;
        background: linear-gradient(to right, #1E3799, #3B3B98);
        clip-path: polygon(0 0, 100% 0, 90% 100%, 0 100%);
        margin: 40px 0;
    }

    /* 粒子背景动画 */
    .particle-background {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        pointer-events: none;
        background: url('https://images.gptkong.com/demo/sample2.png') repeat;
        animation: moveParticles 10s infinite linear;
    }

    @keyframes moveParticles {
        from { background-position: 0 0; }
        to { background-position: -100px -100px; }
    }

    /* 渐显动画 */
    .fade-in {
        opacity: 0;
        animation: fadeIn 2s ease-in-out forwards;
    }

    @keyframes fadeIn {
        from { opacity: 0; }
        to { opacity: 1; }
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        .title-3d {
            font-size: 32px;
        }
    }

    @media (max-width: 1200px) {
        .container {
            width: 95%;
        }
    }

    @media (max-width: 1024px) {
        header {
            padding: 80px 0;
        }
        .title-3d {
            font-size: 28px;
        }
    }

    @media (max-width: 768px) {
        .title-3d {
            font-size: 24px;
        }
        .container {
            padding: 10px;
        }
        p {
            font-size: 16px;
        }
    }

    @media (max-width: 480px) {
        header::after {
            font-size: 36px;
        }
        .button {
            padding: 8px 16px;
            font-size: 14px;
        }
    }

    @media (max-width: 320px) {
        .title-3d {
            font-size: 20px;
        }
        p {
            font-size: 14px;
        }
    }

    /* 链接样式 */
    a {
        color: #FFD700;
        text-decoration: none;
        transition: color 0.3s ease;
    }

    a:hover {
        color: #FFFFFF;
    }

    /* 页面提示样式 */
    .design-reference {
        text-align: center;
        font-size: 16px;
        margin-top: 40px;
        color: #FFD700;
    }