/* 基本样式 */
    body {
        margin: 0;
        font-family: 'Roboto', sans-serif;
        background: linear-gradient(135deg, #0A1F3D, #6C5CE7, #34C759, #FFD700);
        background-size: 400% 400%;
        animation: gradient-animation 15s linear infinite;
        color: #fff;
        line-height: 1.6;
    }

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

    h1, h2, h3 {
        font-family: 'Poppins', sans-serif;
        color: #FFD700;
    }

    h1 {
        font-size: 3em;
        text-align: center;
        margin: 20px 0;
    }

    h2 {
        font-size: 2em;
        margin: 20px 0;
    }

    h3 {
        font-size: 1.5em;
        margin: 15px 0;
    }

    p {
        font-size: 1em;
        margin: 10px 0;
    }

    a {
        color: #FFD700;
        text-decoration: none;
    }

    a:hover {
        text-decoration: underline;
    }

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

    /* Hero Banner */
    .hero {
        position: relative;
        height: 100vh;
        display: flex;
        align-items: center;
        justify-content: center;
        text-align: center;
        color: #fff;
        background: radial-gradient(circle, rgba(255,87,34,1) 0%, rgba(255,87,34,0) 70%);
        animation: aurora-move 15s linear infinite;
    }

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

    .hero h1 {
        font-size: 3em;
        margin-bottom: 20px;
    }

    .hero p {
        font-size: 1.2em;
        max-width: 600px;
    }

    /* 网格系统 */
    .grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 20px;
        margin: 40px 0;
    }

    /* 卡片 */
    .card {
        background: rgba(255, 255, 255, 0.1);
        border-radius: 15px;
        padding: 20px;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        transition: transform 0.3s ease, box-shadow 0.3s ease;
        position: relative;
    }

    .card:hover {
        transform: scale(1.05);
        box-shadow: 0 6px 10px rgba(0,0,0,0.2);
    }

    .card::before {
        content: '';
        position: absolute;
        top: -2px;
        left: -2px;
        right: -2px;
        bottom: -2px;
        background: linear-gradient(45deg, #0A1F3D, #6C5CE7, #34C759, #FFD700);
        z-index: -1;
        border-radius: 15px;
        opacity: 0.5;
    }

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

    .card h3 {
        margin-bottom: 10px;
    }

    .card p {
        font-size: 0.9em;
    }

    /* 按钮 */
    .button {
        display: inline-block;
        padding: 10px 20px;
        margin-top: 20px;
        background: #6C5CE7;
        color: #fff;
        border: none;
        border-radius: 25px;
        cursor: pointer;
        position: relative;
        overflow: hidden;
        transition: background 0.3s ease, color 0.3s ease;
    }

    .button::before {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        width: 0;
        height: 0;
        background: rgba(255, 255, 255, 0.5);
        border-radius: 50%;
        transform: translate(-50%, -50%);
        opacity: 0;
        transition: all 0.4s ease;
    }

    .button:hover::before {
        width: 200px;
        height: 200px;
        opacity: 1;
    }

    .button:hover {
        background: #FFD700;
        color: #0A1F3D;
    }

    /* 文章展示 */
    .sample-article {
        background: rgba(255, 255, 255, 0.1);
        padding: 30px;
        border-radius: 15px;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        margin: 40px 0;
    }

    .sample-article pre {
        background: #0A1F3D;
        padding: 15px;
        border-radius: 10px;
        overflow-x: auto;
    }

    .sample-article code {
        color: #FFD700;
        font-family: 'Courier New', Courier, monospace;
        display: block;
    }

    /* 响应式设计 */
    @media (max-width: 768px) {
        .hero h1 {
            font-size: 2em;
        }

        .hero p {
            font-size: 1em;
            padding: 0 10px;
        }

        .button {
            padding: 8px 16px;
        }
    }

    @media (max-width: 480px) {
        h1 {
            font-size: 2em;
        }

        h2 {
            font-size: 1.5em;
        }

        h3 {
            font-size: 1.2em;
        }

        .container {
            padding: 10px;
        }
    }

    /* 其他屏幕大小适配 */
    @media (min-width: 1024px) {
        .hero {
            height: 80vh;
        }
    }

    @media (min-width: 1200px) {
        .container {
            width: 85%;
        }
    }

    @media (min-width: 1440px) {
        h1 {
            font-size: 4em;
        }

        h2 {
            font-size: 2.5em;
        }
    }