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

    body {
        background: linear-gradient(135deg, #0A192F, #000000);
        color: #FFFFFF;
        font-family: 'Roboto', sans-serif;
        line-height: 1.6;
        overflow-x: hidden;
    }

    a {
        color: #64FFDA;
        text-decoration: none;
    }

    a:hover {
        text-decoration: underline;
    }

    /* 导航栏 */
    .navbar {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        background-color: rgba(10, 25, 47, 0.9);
        backdrop-filter: blur(10px);
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 20px 40px;
        z-index: 1000;
    }

    .navbar .logo {
        font-family: 'Montserrat', sans-serif;
        font-size: 1.5em;
        font-weight: bold;
        color: #64FFDA;
    }

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

    .navbar ul li a {
        font-family: 'Montserrat', sans-serif;
        font-size: 1em;
        color: #FFFFFF;
        transition: color 0.3s ease;
    }

    .navbar ul li a:hover {
        color: #64FFDA;
    }

    .toggle-switch {
        cursor: pointer;
        width: 40px;
        height: 20px;
        background: #8892B0;
        border-radius: 10px;
        position: relative;
        transition: background 0.3s ease;
    }

    .toggle-switch::after {
        content: '';
        position: absolute;
        top: 2px;
        left: 2px;
        width: 16px;
        height: 16px;
        background: #0A192F;
        border-radius: 50%;
        transition: transform 0.3s ease;
    }

    .dark-mode .toggle-switch {
        background: #64FFDA;
    }

    .dark-mode .toggle-switch::after {
        transform: translateX(20px);
        background: #0A192F;
    }

    /* 主内容区 */
    .container {
        max-width: 1200px;
        margin: 100px auto 50px;
        padding: 20px;
    }

    .section {
        margin-bottom: 50px;
    }

    .section h2, .section h3, .section h4 {
        font-family: 'Montserrat', sans-serif;
        margin-bottom: 20px;
    }

    .section h2 {
        font-size: 2em;
        color: #64FFDA;
    }

    .section h3 {
        font-size: 1.5em;
        color: #8892B0;
    }

    .section h4 {
        font-size: 1.2em;
        color: #C5C7CB;
    }

    .section p {
        margin-bottom: 20px;
        color: #C5C7CB;
    }

    /* 卡片样式 */
    .card {
        background-color: #1E2A3D;
        border-radius: 8px;
        padding: 20px;
        margin-bottom: 20px;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .card:hover {
        transform: translateY(-10px);
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.5);
    }

    .card-title {
        font-family: 'Montserrat', sans-serif;
        font-size: 1.5em;
        color: #64FFDA;
        margin-bottom: 10px;
    }

    .card-content {
        font-family: 'Roboto', sans-serif;
        color: #C5C7CB;
    }

    /* 代码块样式 */
    pre {
        background-color: #0A192F;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        font-family: 'Roboto Mono', monospace;
        color: #64FFDA;
        margin-bottom: 20px;
    }

    code {
        font-family: 'Roboto Mono', monospace;
        color: #64FFDA;
    }

    /* 图片样式 */
    .images {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin-bottom: 20px;
    }

    .images img {
        width: 100%;
        max-width: 320px;
        border-radius: 5px;
        object-fit: cover;
    }

    /* 提示信息 */
    .note {
        background-color: rgba(100, 255, 218, 0.1);
        border-left: 4px solid #64FFDA;
        padding: 10px 20px;
        margin-bottom: 20px;
        font-family: 'Roboto', sans-serif;
        color: #64FFDA;
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        .container {
            max-width: 1024px;
        }
    }

    @media (max-width: 1200px) {
        .container {
            max-width: 960px;
        }
    }

    @media (max-width: 1024px) {
        .navbar ul {
            gap: 15px;
        }

        .section h2 {
            font-size: 1.8em;
        }

        .card-title {
            font-size: 1.3em;
        }
    }

    @media (max-width: 768px) {
        .navbar {
            padding: 15px 20px;
        }

        .container {
            margin: 80px auto 40px;
            padding: 15px;
        }

        .section h2 {
            font-size: 1.5em;
        }

        .section h3 {
            font-size: 1.2em;
        }

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

    @media (max-width: 480px) {
        .navbar ul {
            display: none;
        }

        .toggle-switch {
            width: 30px;
            height: 15px;
        }

        .toggle-switch::after {
            width: 12px;
            height: 12px;
        }

        .section h2 {
            font-size: 1.2em;
        }

        .section h3 {
            font-size: 1em;
        }

        .card-title {
            font-size: 1em;
        }

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

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

        .section h2 {
            font-size: 1em;
        }

        .section h3 {
            font-size: 0.9em;
        }

        .card {
            padding: 15px;
        }

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

        .card-content {
            font-size: 0.8em;
        }
    }

    /* 动画效果 */
    @keyframes fadeIn {
        from {
            opacity: 0;
            transform: translateY(20px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    .fade-in {
        animation: fadeIn 1s ease forwards;
    }

    /* 按钮样式 */
    .button {
        background-color: #8892B0;
        color: #FFFFFF;
        border: none;
        padding: 12px 24px;
        border-radius: 4px;
        cursor: pointer;
        transition: all 0.3s ease;
        font-family: 'Montserrat', sans-serif;
    }

    .button:hover {
        background-color: #64FFDA;
        transform: scale(1.1);
        box-shadow: 0 0 10px #64FFDA;
    }

    /* 末尾样式 */
    footer {
        text-align: center;
        padding: 20px;
        font-family: 'Roboto', sans-serif;
        color: #C5C7CB;
    }