/* 全局样式 */
    :root {
        --medium-turquoise: #48D1CC;
        --dark-red: #CC4848;
        --light-turquoise1: #48CCC0;
        --light-turquoise2: #48CCD1;
        --gold: #FFD700;
        --silver: #C0C0C0;
        --background-light: #f9f9f9;
        --text-color: #333;
        --border-color: #48D1CC;
    }

    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    body {
        background-color: var(--background-light);
        color: var(--text-color);
        font-family: 'Arial, sans-serif';
        line-height: 1.6;
        padding: 1rem;
    }

    .header {
        background-color: var(--medium-turquoise);
        color: white;
        padding: 2rem;
        text-align: center;
        font-family: 'Helvetica Neue', sans-serif;
        border-radius: 8px;
        box-shadow: 0 4px 10px rgba(72, 209, 204, 0.2);
        margin-bottom: 2rem;
    }

    .header h1 {
        font-size: 2.5rem;
        margin-bottom: 0.5rem;
    }

    .header p {
        font-size: 1.2rem;
    }

    .content {
        max-width: 1200px;
        margin: 0 auto;
        padding: 1rem;
    }

    .content section {
        margin-bottom: 2rem;
    }

    .content h2 {
        color: var(--medium-turquoise);
        margin-bottom: 1rem;
        font-size: 2rem;
    }

    .content h3 {
        color: var(--dark-red);
        margin-bottom: 0.5rem;
        font-size: 1.5rem;
    }

    .content p {
        margin-bottom: 1rem;
        font-size: 1rem;
        color: #555;
    }

    .content ul, .content ol {
        margin-left: 1.5rem;
        margin-bottom: 1rem;
    }

    .content code {
        background-color: #eef;
        padding: 0.2rem 0.4rem;
        border-radius: 4px;
        font-family: 'Courier New', Courier, monospace;
    }

    .content pre {
        background-color: #eef;
        padding: 1rem;
        border-radius: 8px;
        overflow-x: auto;
        margin-bottom: 1rem;
    }

    .color-swatch {
        width: 50px;
        height: 50px;
        border-radius: 50%;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        display: inline-block;
        margin-right: 10px;
    }

    .gradient-section {
        background: linear-gradient(135deg, var(--medium-turquoise), var(--light-turquoise1), var(--light-turquoise2));
        background-size: 300% 300%;
        animation: gradientAnimation 6s infinite;
        padding: 2rem;
        border-radius: 8px;
        box-shadow: 0 4px 10px rgba(72,209,204,0.2);
    }

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

    .cta-button {
        background-color: var(--medium-turquoise);
        color: white;
        padding: 1rem 2rem;
        border: none;
        border-radius: 0.5rem;
        cursor: pointer;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
        font-size: 1rem;
    }

    .cta-button:hover {
        transform: scale(1.05);
        box-shadow: 0 4px 6px rgba(72, 209, 204, 0.3);
    }

    .table-responsive {
        overflow-x: auto;
    }

    table {
        width: 100%;
        border-collapse: collapse;
        margin-bottom: 1rem;
    }

    table, th, td {
        border: 1px solid var(--border-color);
    }

    th, td {
        padding: 0.75rem;
        text-align: left;
    }

    th {
        background-color: var(--medium-turquoise);
        color: white;
    }

    a {
        color: var(--dark-red);
        text-decoration: none;
        position: relative;
    }

    a::after {
        content: '';
        display: block;
        width: 0;
        height: 2px;
        background: var(--dark-red);
        transition: width .3s;
    }

    a:hover::after {
        width: 100%;
    }

    .images {
        display: flex;
        flex-wrap: wrap;
        gap: 1rem;
        margin-bottom: 1rem;
    }

    .images img {
        width: 100%;
        max-width: 320px;
        border-radius: 8px;
        box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    }

    @media (max-width: 1440px) {
        .header h1 {
            font-size: 2.2rem;
        }

        .header p {
            font-size: 1.1rem;
        }

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

        .content h3 {
            font-size: 1.3rem;
        }

        .cta-button {
            font-size: 0.9rem;
            padding: 0.8rem 1.5rem;
        }
    }

    @media (max-width: 1200px) {
        .header {
            padding: 1.5rem;
        }

        .content {
            padding: 0.8rem;
        }

        .images {
            flex-direction: column;
            align-items: center;
        }
    }

    @media (max-width: 1024px) {
        .gradient-section {
            padding: 1.5rem;
        }

        table, th, td {
            font-size: 0.9rem;
        }
    }

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

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

        .content h2 {
            font-size: 1.6rem;
        }

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

        .cta-button {
            font-size: 0.85rem;
            padding: 0.7rem 1.2rem;
        }

        .images img {
            max-width: 100%;
        }
    }

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

        .header p {
            font-size: 0.95rem;
        }

        .content h2 {
            font-size: 1.4rem;
        }

        .content h3 {
            font-size: 1rem;
        }

        .cta-button {
            font-size: 0.8rem;
            padding: 0.6rem 1rem;
        }

        .images {
            flex-direction: column;
            align-items: stretch;
        }

        .images img {
            max-width: 100%;
        }
    }

    @media (max-width: 320px) {
        .header h1 {
            font-size: 1.6rem;
        }

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

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

        .content h3 {
            font-size: 0.9rem;
        }

        .cta-button {
            font-size: 0.75rem;
            padding: 0.5rem 0.8rem;
        }
    }