/* 全局样式 */
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    body {
        font-family: 'Helvetica Neue', Arial, sans-serif;
        background: linear-gradient(135deg, #000428, #004e92);
        color: #ffffff;
        line-height: 1.6;
        padding: 20px;
        background-size: 400% 400%;
        animation: gradientAnimation 15s ease infinite;
    }

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

    h1, h2, h3, h4, h5, h6 {
        color: #00ff8f;
        margin-bottom: 20px;
        text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    }

    h1 {
        font-size: 2.5em;
        text-align: center;
        margin-top: 20px;
    }

    h2 {
        font-size: 2em;
        margin-top: 40px;
    }

    h3 {
        font-size: 1.75em;
        margin-top: 30px;
    }

    h4 {
        font-size: 1.5em;
        margin-top: 25px;
    }

    p {
        margin-bottom: 20px;
        font-size: 1em;
        color: #e0e0e0;
    }

    a {
        color: #00ff8f;
        text-decoration: none;
        transition: color 0.3s;
    }

    a:hover {
        color: #ff00c8;
    }

    a[rel="nofollow"]::after {
        content: "";
    }

    pre {
        background: rgba(255, 255, 255, 0.1);
        padding: 15px;
        border-radius: 10px;
        overflow-x: auto;
        margin-bottom: 20px;
    }

    code {
        font-family: 'Courier New', Courier, monospace;
        color: #ff6ec7;
    }

    table {
        width: 100%;
        border-collapse: collapse;
        margin-bottom: 20px;
    }

    th, td {
        padding: 12px;
        border: 1px solid #333;
        text-align: left;
    }

    th {
        background: #1a1a1a;
    }

    tr:nth-child(even) {
        background: #0f0f0f;
    }

    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 20px;
    }

    .grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 20px;
    }

    .card {
        background: rgba(255, 255, 255, 0.1);
        padding: 20px;
        border-radius: 15px;
        box-shadow: 0 4px 15px rgba(0,0,0,0.5);
        transition: transform 0.3s, box-shadow 0.3s;
    }

    .card:hover {
        transform: translateY(-10px);
        box-shadow: 0 8px 25px rgba(0,0,0,0.7);
    }

    img {
        width: 100%;
        border-radius: 10px;
        margin-bottom: 15px;
    }

    .particle {
        position: absolute;
        width: 8px;
        height: 8px;
        background-color: #00ff8f;
        opacity: 0.8;
        border-radius: 50%;
        animation: float 6s infinite ease-in-out;
    }

    @keyframes float {
        0% { transform: translateY(0) scale(1); opacity: 0.8; }
        50% { transform: translateY(-20px) scale(1.5); opacity: 0.4; }
        100% { transform: translateY(0) scale(1); opacity: 0.8; }
    }

    .button {
        display: inline-block;
        background: rgba(0, 255, 143, 0.2);
        padding: 10px 20px;
        border: 2px solid #00ff8f;
        border-radius: 25px;
        color: #ffffff;
        transition: background 0.3s, transform 0.3s;
        cursor: pointer;
        text-align: center;
    }

    .button:hover {
        background: rgba(0, 255, 143, 0.4);
        transform: translateY(-5px);
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        body {
            padding: 15px;
        }

        h1 {
            font-size: 2.2em;
        }

        h2 {
            font-size: 1.8em;
        }

        h3 {
            font-size: 1.5em;
        }

        p {
            font-size: 0.95em;
        }
    }

    @media (max-width: 1200px) {
        .grid {
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        }
    }

    @media (max-width: 1024px) {
        body {
            padding: 10px;
        }

        .button {
            padding: 8px 16px;
            font-size: 0.9em;
        }
    }

    @media (max-width: 768px) {
        h1 {
            font-size: 2em;
        }

        h2 {
            font-size: 1.6em;
        }

        h3 {
            font-size: 1.3em;
        }

        .grid {
            grid-template-columns: 1fr;
        }
    }

    @media (max-width: 480px) {
        h1 {
            font-size: 1.8em;
        }

        h2 {
            font-size: 1.4em;
        }

        h3 {
            font-size: 1.2em;
        }

        p {
            font-size: 0.9em;
        }
    }

    @media (max-width: 320px) {
        h1 {
            font-size: 1.5em;
        }

        h2 {
            font-size: 1.2em;
        }

        h3 {
            font-size: 1em;
        }

        p {
            font-size: 0.85em;
        }
    }