/* 基础样式重置 */
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    /* 主题颜色变量 */
    :root {
        --background-start: #1a1a1a;
        --background-end: #0d0d0d;
        --primary-color: #ff9900;
        --secondary-color: #ffd700;
        --text-color: #ffffff;
        --card-background: #2a2a2a;
        --link-color: #ffcc00;
        --button-hover: #e68a00;
        --font-family: 'Roboto', sans-serif;
    }

    body {
        font-family: var(--font-family);
        background: radial-gradient(circle, var(--background-start), var(--background-end));
        color: var(--text-color);
        line-height: 1.6;
        padding: 20px;
        animation: aurora-move 15s linear infinite;
    }

    /* 渐变背景动画 */
    @keyframes aurora-move {
        0% {
            background-position: 0% 50%;
        }
        50% {
            background-position: 100% 50%;
        }
        100% {
            background-position: 0% 50%;
        }
    }

    header {
        text-align: center;
        padding: 50px 0;
        background: linear-gradient(135deg, #450af5, #c4efd9);
        border-radius: 10px;
        margin-bottom: 30px;
    }

    header h1 {
        font-size: 2.5rem;
        color: var(--secondary-color);
        margin-bottom: 10px;
    }

    header p {
        font-size: 1.2rem;
        color: var(--text-color);
    }

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

    article {
        background: var(--card-background);
        padding: 30px;
        border-radius: 10px;
        box-shadow: 0 4px 8px rgba(0,0,0,0.5);
        margin-bottom: 30px;
    }

    article h2 {
        font-size: 2rem;
        margin-bottom: 20px;
        color: var(--primary-color);
    }

    article h3, article h4 {
        font-size: 1.5rem;
        margin-top: 20px;
        color: var(--secondary-color);
    }

    article p {
        margin: 15px 0;
        font-size: 1rem;
    }

    pre {
        background: #333;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        margin: 15px 0;
    }

    code {
        color: #ffcc00;
        font-family: 'Courier New', Courier, monospace;
    }

    .grid-container {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 20px;
        margin-top: 30px;
    }

    .card {
        background: var(--card-background);
        padding: 20px;
        border-radius: 8px;
        box-shadow: 0 4px 6px rgba(0,0,0,0.3);
        transition: transform 0.3s ease, background 0.3s ease;
    }

    .card:hover {
        transform: translateY(-10px);
        background: #3a3a3a;
    }

    .button {
        background: var(--primary-color);
        color: var(--text-color);
        padding: 10px 20px;
        border: none;
        border-radius: 5px;
        cursor: pointer;
        transition: background 0.3s ease, transform 0.3s ease;
    }

    .button:hover {
        background: var(--button-hover);
        transform: scale(1.05);
    }

    .particle-effect {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        pointer-events: none;
        background: transparent;
        z-index: -1;
    }

    .particle {
        position: absolute;
        width: 5px;
        height: 5px;
        background: rgba(255, 215, 0, 0.8);
        border-radius: 50%;
        animation: moveParticle 10s linear infinite;
    }

    @keyframes moveParticle {
        0% {
            transform: translateY(0) scale(1);
            opacity: 1;
        }
        100% {
            transform: translateY(100vh) scale(0.5);
            opacity: 0;
        }
    }

    /* 图片样式 */
    .image-gallery {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin-top: 20px;
    }

    .image-gallery img {
        width: 100%;
        height: auto;
        border-radius: 5px;
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        header h1 {
            font-size: 2.2rem;
        }
    }

    @media (max-width: 1200px) {
        .container {
            padding: 15px;
        }
    }

    @media (max-width: 1024px) {
        article {
            padding: 25px;
        }

        .grid-container {
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        }
    }

    @media (max-width: 768px) {
        header {
            padding: 40px 0;
        }

        article {
            padding: 20px;
        }

        .button {
            width: 100%;
            text-align: center;
        }
    }

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

        article h2 {
            font-size: 1.8rem;
        }

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

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

        article h2 {
            font-size: 1.5rem;
        }

        .card {
            padding: 15px;
        }
    }

    /* 链接样式 */
    a {
        color: var(--link-color);
        text-decoration: none;
        transition: color 0.3s ease;
    }

    a:hover {
        color: var(--primary-color);
    }

    /* 提示信息样式 */
    .reference-note {
        text-align: center;
        font-size: 1rem;
        margin-top: 20px;
        color: #cccccc;
    }