/* 全局样式 */
    body {
        margin: 0;
        font-family: 'Roboto', sans-serif;
        color: #333333;
        background-color: #FFFFFF;
    }

    a {
        text-decoration: none;
        color: inherit;
    }

    /* 导航栏样式 */
    .navbar {
        display: flex;
        justify-content: space-between;
        align-items: center;
        background-color: #FFFFFF;
        padding: 20px 40px;
        border-bottom: 2px solid #7FFF00;
    }

    .navbar .logo {
        font-size: 24px;
        font-weight: bold;
        color: #7FFF00;
    }

    .navbar nav ul {
        list-style: none;
        display: flex;
        gap: 20px;
        margin: 0;
        padding: 0;
    }

    .navbar nav ul li a {
        color: #333333;
        transition: color 0.3s ease;
    }

    .navbar nav ul li a:hover {
        color: #7FFF00;
    }

    /* 英雄区样式 */
    .hero-section {
        background: linear-gradient(to right, #7FFF00, #00FF7F);
        height: 400px;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        color: #FFFFFF;
        text-align: center;
        position: relative;
    }

    .hero-section::before {
        content: "";
        position: absolute;
        width: 100%;
        height: 100%;
        background-image: url('https://images.gptkong.com/demo/sample1.png'), url('https://images.gptkong.com/demo/sample2.png');
        background-repeat: no-repeat;
        background-position: top left, bottom right;
        opacity: 0.2;
    }

    .hero-section h1 {
        font-size: 36px;
        margin-bottom: 20px;
        z-index: 1;
    }

    .hero-section p {
        font-size: 18px;
        margin-bottom: 30px;
        z-index: 1;
    }

    .button-primary {
        background-color: #7FFF00;
        color: #FFFFFF;
        border: none;
        padding: 15px 30px;
        font-size: 18px;
        border-radius: 5px;
        cursor: pointer;
        transition: background-color 0.3s ease, transform 0.2s ease;
        z-index: 1;
    }

    .button-primary:hover {
        background-color: #6EEB00;
        transform: scale(1.05);
    }

    /* 内容区样式 */
    .content-section {
        padding: 60px 40px;
        background-color: #FFFFFF;
    }

    .content-section:nth-child(even) {
        background-color: #F0FFF0;
    }

    .content-section h2 {
        font-size: 28px;
        color: #7FFF00;
        margin-bottom: 20px;
    }

    .content-section h3 {
        font-size: 22px;
        color: #FF4500;
        margin-top: 40px;
        margin-bottom: 15px;
    }

    .content-section h4 {
        font-size: 20px;
        color: #7FFF00;
        margin-top: 30px;
        margin-bottom: 10px;
    }

    .content-section p {
        font-size: 16px;
        line-height: 1.6;
        margin-bottom: 15px;
    }

    .content-section ul {
        list-style: disc inside;
        margin-bottom: 15px;
    }

    .color-schemes {
        display: flex;
        flex-direction: column;
        gap: 40px;
        margin-top: 30px;
    }

    .scheme {
        background-color: #FFFFFF;
        padding: 20px;
        border-radius: 5px;
        box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    }

    .scheme h3 {
        font-size: 22px;
        color: #FF4500;
        margin-bottom: 10px;
    }

    pre {
        background-color: #F0FFF0;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        font-family: 'Courier New', Courier, monospace;
        font-size: 14px;
    }

    code {
        color: #7FFF00;
    }

    .color-preview {
        display: flex;
        align-items: center;
        gap: 10px;
        margin-top: 10px;
    }

    .color-box {
        width: 100px;
        height: 50px;
        border: 1px solid #ccc;
        border-radius: 5px;
    }

    /* 底部样式 */
    .footer {
        background-color: #7FFF00;
        color: #FFFFFF;
        text-align: center;
        padding: 20px;
    }

    .footer a {
        color: #FFFFFF;
        margin: 0 10px;
        transition: color 0.3s ease;
    }

    .footer a:hover {
        color: #FFFFFF;
        text-decoration: underline;
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        .content-section {
            padding: 50px 30px;
        }
    }

    @media (max-width: 1200px) {
        .navbar {
            padding: 15px 30px;
        }

        .hero-section {
            height: 350px;
        }

        .hero-section h1 {
            font-size: 32px;
        }

        .hero-section p {
            font-size: 16px;
        }

        .button-primary {
            padding: 12px 25px;
            font-size: 16px;
        }
    }

    @media (max-width: 1024px) {
        .color-schemes {
            flex-direction: column;
        }
    }

    @media (max-width: 768px) {
        .navbar nav ul {
            flex-direction: column;
            gap: 10px;
        }

        .hero-section {
            height: 300px;
        }

        .hero-section h1 {
            font-size: 28px;
        }

        .hero-section p {
            font-size: 14px;
        }

        .content-section {
            padding: 40px 20px;
        }

        .scheme {
            padding: 15px;
        }
    }

    @media (max-width: 480px) {
        .navbar {
            flex-direction: column;
            align-items: flex-start;
        }

        .hero-section {
            height: 250px;
        }

        .hero-section h1 {
            font-size: 24px;
        }

        .hero-section p {
            font-size: 12px;
        }

        .button-primary {
            padding: 10px 20px;
            font-size: 14px;
        }

        .content-section {
            padding: 30px 15px;
        }

        .footer {
            padding: 15px;
        }
    }

    @media (max-width: 320px) {
        .navbar nav ul {
            flex-direction: column;
            width: 100%;
        }

        .color-schemes {
            gap: 20px;
        }

        .color-preview {
            flex-direction: column;
            align-items: flex-start;
        }
    }

    /* 其他视觉元素 */
    .decorative-images img {
        width: 100px;
        height: 100px;
        border-radius: 50%;
        object-fit: cover;
        margin: 10px;
    }

    .highlight {
        background-color: rgba(127, 255, 0, 0.2);
        padding: 5px;
        border-radius: 3px;
    }

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

    table, th, td {
        border: 1px solid #7FFF00;
    }

    th, td {
        padding: 10px;
        text-align: left;
    }

    th {
        background-color: #7FFF00;
        color: #FFFFFF;
    }