/* 全局设置 */
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    body {
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #004AAD, #8B00FF, #00FF7F);
        background-size: 400% 400%;
        animation: gradient-animation 15s ease infinite;
        color: #ffffff;
        line-height: 1.6;
    }

    @keyframes gradient-animation {
        0% { background-position: 0% 50%; }
        50% { background-position: 100% 50%; }
        100% { background-position: 0% 50%; }
    }

    header {
        background: linear-gradient(135deg, #002A6F, #6A00FF);
        padding: 20px 0;
        position: fixed;
        width: 100%;
        top: 0;
        z-index: 1000;
        box-shadow: 0 2px 5px rgba(0,0,0,0.3);
    }

    header .container {
        width: 90%;
        max-width: 1200px;
        margin: 0 auto;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    header h1 {
        font-family: 'Orbitron', sans-serif;
        font-size: 2rem;
        color: #ffffff;
        text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.5);
    }

    nav ul {
        list-style: none;
        display: flex;
    }

    nav ul li {
        margin-left: 20px;
    }

    nav ul li a {
        text-decoration: none;
        color: #ffffff;
        font-size: 1rem;
        transition: color 0.3s ease;
    }

    nav ul li a:hover {
        color: #00FF7F;
    }

    .hero {
        height: 100vh;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        text-align: center;
        padding: 0 20px;
    }

    .hero h2 {
        font-family: 'Orbitron', sans-serif;
        font-size: 3rem;
        margin-bottom: 20px;
        text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.5);
    }

    .hero p {
        font-size: 1.2rem;
        margin-bottom: 30px;
    }

    .hero .btn {
        background-color: #004AAD;
        padding: 15px 30px;
        border: none;
        border-radius: 25px;
        color: #ffffff;
        font-size: 1rem;
        cursor: pointer;
        transition: box-shadow 0.3s ease, transform 0.3s ease;
    }

    .hero .btn:hover {
        box-shadow: 0 0 20px #00FF7F;
        transform: translateY(-5px);
    }

    section {
        padding: 100px 20px;
        min-height: 100vh;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
    }

    .section-content {
        background: rgba(0, 0, 0, 0.5);
        padding: 40px;
        border-radius: 10px;
        max-width: 800px;
        width: 100%;
        box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    }

    .section-content h3 {
        font-family: 'Orbitron', sans-serif;
        font-size: 2rem;
        margin-bottom: 20px;
        color: #00FF7F;
    }

    .section-content p {
        font-size: 1rem;
        margin-bottom: 15px;
    }

    .code-block {
        background: #1e1e1e;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        margin-bottom: 20px;
    }

    .code-block code {
        color: #d4d4d4;
        font-family: 'Courier New', Courier, monospace;
        font-size: 0.9rem;
        display: block;
    }

    .images-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 15px;
        margin-top: 20px;
    }

    .images-grid img {
        width: 100%;
        border-radius: 10px;
    }

    .sample-article {
        background: rgba(255, 255, 255, 0.1);
        padding: 40px;
        border-radius: 10px;
        max-width: 1000px;
        width: 100%;
        box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    }

    .sample-article h2 {
        font-family: 'Orbitron', sans-serif;
        font-size: 2.5rem;
        margin-bottom: 20px;
        color: #FFD700;
        text-align: center;
    }

    .sample-article h3 {
        font-family: 'Orbitron', sans-serif;
        font-size: 1.8rem;
        margin-top: 20px;
        color: #00FF7F;
    }

    .sample-article p {
        font-size: 1rem;
        margin-bottom: 15px;
    }

    .sample-article pre {
        background: #2d2d2d;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        margin-bottom: 20px;
    }

    .sample-article code {
        color: #dcdcaa;
        font-family: 'Courier New', Courier, monospace;
        font-size: 0.9rem;
        display: block;
    }

    footer {
        background: linear-gradient(135deg, #002A6F, #6A00FF);
        padding: 20px 0;
        text-align: center;
        position: relative;
        bottom: 0;
        width: 100%;
        box-shadow: 0 -2px 5px rgba(0,0,0,0.3);
    }

    footer p {
        font-size: 1rem;
        color: #ffffff;
    }

    /* 按钮发光效果 */
    .glow-button {
        background-color: #004AAD;
        color: #ffffff;
        padding: 10px 20px;
        border: none;
        border-radius: 25px;
        cursor: pointer;
        transition: box-shadow 0.3s ease;
    }

    .glow-button:hover {
        box-shadow: 0 0 10px #00FF7F, 0 0 20px #00FF7F, 0 0 30px #00FF7F;
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        header h1 {
            font-size: 1.8rem;
        }

        .hero h2 {
            font-size: 2.5rem;
        }
    }

    @media (max-width: 1200px) {
        .section-content {
            padding: 30px;
        }

        .sample-article h2 {
            font-size: 2rem;
        }
    }

    @media (max-width: 1024px) {
        nav ul li {
            margin-left: 15px;
        }

        .hero h2 {
            font-size: 2.2rem;
        }

        .section-content h3 {
            font-size: 1.8rem;
        }
    }

    @media (max-width: 768px) {
        header .container {
            flex-direction: column;
        }

        nav ul {
            flex-direction: column;
            margin-top: 10px;
        }

        nav ul li {
            margin-left: 0;
            margin-bottom: 10px;
        }

        .hero h2 {
            font-size: 1.8rem;
        }

        .section-content {
            padding: 20px;
        }

        .sample-article h2 {
            font-size: 1.8rem;
        }
    }

    @media (max-width: 480px) {
        header h1 {
            font-size: 1.5rem;
        }

        nav ul li a {
            font-size: 0.9rem;
        }

        .hero h2 {
            font-size: 1.5rem;
        }

        .hero p {
            font-size: 1rem;
        }

        .section-content h3 {
            font-size: 1.5rem;
        }

        .sample-article h2 {
            font-size: 1.5rem;
        }
    }

    @media (max-width: 320px) {
        header h1 {
            font-size: 1.2rem;
        }

        .hero h2 {
            font-size: 1.2rem;
        }

        .hero p {
            font-size: 0.9rem;
        }

        .section-content h3 {
            font-size: 1.2rem;
        }

        .sample-article h2 {
            font-size: 1.2rem;
        }
    }