/* 全局样式设置 */
    body {
        margin: 0;
        padding: 0;
        background: linear-gradient(135deg, #001f3f, #0074d9);
        font-family: 'Roboto', sans-serif;
        color: #ffffff;
        background-attachment: fixed;
    }

    /* 导航栏样式 */
    .navbar {
        display: flex;
        justify-content: space-between;
        align-items: center;
        background: rgba(0, 31, 63, 0.8);
        padding: 20px;
        box-shadow: 0 4px 6px rgba(0,0,0,0.3);
        position: fixed;
        width: 100%;
        top: 0;
        z-index: 1000;
    }

    .navbar .logo {
        font-size: 24px;
        font-weight: bold;
        color: #ff851b;
    }

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

    .navbar ul li {
        margin-left: 20px;
    }

    .navbar ul li a {
        text-decoration: none;
        color: #ffffff;
        font-size: 16px;
        transition: color 0.3s ease;
    }

    .navbar ul li a:hover {
        color: #ff851b;
    }

    /* 主内容区样式 */
    .container {
        padding: 120px 20px 20px 20px; /* 上方留空间给固定导航栏 */
        max-width: 1200px;
        margin: 0 auto;
    }

    /* 标题样式 */
    h1, h2, h3, h4 {
        color: #ff851b;
        font-weight: bold;
        margin-top: 40px;
        margin-bottom: 20px;
    }

    /* 段落样式 */
    p {
        font-size: 16px;
        line-height: 1.6;
        color: #ffffff;
        margin-bottom: 20px;
    }

    /* 代码块样式 */
    pre {
        background: rgba(255, 255, 255, 0.1);
        padding: 15px;
        border-radius: 8px;
        overflow-x: auto;
        font-family: 'Courier New', Courier, monospace;
        color: #00ff00;
    }

    code {
        font-family: 'Courier New', Courier, monospace;
        color: #00ff00;
    }

    /* 模块化网格布局 */
    .grid-container {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 20px;
        margin-bottom: 40px;
    }

    /* 内容卡片样式 */
    .card {
        background: rgba(255, 255, 255, 0.1);
        border: 1px solid #ffffff;
        border-radius: 10px;
        padding: 20px;
        box-shadow: 0 4px 8px rgba(0,0,0,0.2);
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .card:hover {
        transform: translateY(-10px);
        box-shadow: 0 8px 16px rgba(0,0,0,0.3);
    }

    /* 按钮样式，拟物化设计 */
    .button {
        background: linear-gradient(45deg, #0074d9, #0056b3);
        color: #ffffff;
        padding: 10px 20px;
        border: none;
        border-radius: 5px;
        cursor: pointer;
        box-shadow: 0 5px 0 #004080;
        transition: all 0.3s ease;
        font-weight: bold;
    }

    .button:active {
        transform: translateY(5px);
        box-shadow: 0 0 0 #004080;
    }

    /* 3D 图标样式 */
    .icon-3d {
        width: 50px;
        height: 50px;
        background-color: #ffffff;
        border-radius: 50%;
        box-shadow: 0 5px 0 #cccccc;
        transform: rotateX(60deg);
        transition: transform 0.3s ease;
    }

    .icon-3d:hover {
        transform: rotateX(0deg);
    }

    /* 图片样式 */
    .decorative-image {
        width: 100%;
        height: auto;
        border-radius: 10px;
    }

    /* 动画效果 */
    @keyframes aurora-move {
        0% { background-position: 0% 50%; }
        50% { background-position: 100% 50%; }
        100% { background-position: 0% 50%; }
    }

    body {
        background: radial-gradient(circle, rgb(255, 87, 34), transparent), linear-gradient(135deg, #001f3f, #0074d9);
        animation: aurora-move 15s linear infinite;
        background-size: 200% 200%;
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        .container {
            padding: 100px 20px 20px 20px;
        }
    }

    @media (max-width: 1200px) {
        .navbar .logo {
            font-size: 20px;
        }

        .navbar ul li a {
            font-size: 14px;
        }
    }

    @media (max-width: 1024px) {
        .grid-container {
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        }
    }

    @media (max-width: 768px) {
        .grid-container {
            grid-template-columns: 1fr;
        }

        h1, h2, h3, h4 {
            font-size: 24px;
        }

        p {
            font-size: 14px;
        }
    }

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

        .navbar ul li {
            margin-left: 0;
            margin-top: 10px;
        }
    }

    @media (max-width: 320px) {
        .container {
            padding: 80px 10px 10px 10px;
        }

        .button {
            padding: 8px 16px;
            font-size: 14px;
        }
    }

    /* 视差滚动效果 */
    .parallax {
        background-image: url('https://images.gptkong.com/demo/sample1.png');
        height: 400px;
        background-attachment: fixed;
        background-position: center;
        background-repeat: no-repeat;
        background-size: cover;
    }

    /* 智能理财建议模块 */
    .smart-advice {
        background: rgba(255, 255, 255, 0.1);
        border-left: 5px solid #ff851b;
        padding: 20px;
        margin-bottom: 20px;
    }

    /* 风险评估工具样式 */
    .risk-tool {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    /* 提示样式 */
    .reference-note {
        text-align: center;
        font-size: 18px;
        margin-top: 40px;
        color: #ff851b;
        font-weight: bold;
    }