/* 基础重置 */
    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    body {
        font-family: 'Poppins', sans-serif;
        background: linear-gradient(135deg, #4c6ef5, #8e44ad);
        color: #ffffff;
        line-height: 1.6;
        overflow-x: hidden;
    }

    /* 顶部导航栏 */
    .navbar {
        position: fixed;
        top: 0;
        width: 100%;
        background: rgba(0, 0, 0, 0.5);
        padding: 15px 30px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        z-index: 1000;
        backdrop-filter: blur(10px);
        transition: background 0.3s ease;
    }

    .navbar:hover {
        background: rgba(0, 0, 0, 0.7);
    }

    .navbar .logo {
        font-size: 1.5em;
        font-weight: bold;
    }

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

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

    .navbar ul li a {
        text-decoration: none;
        color: #ffffff;
        font-weight: 500;
        transition: color 0.3s ease;
    }

    .navbar ul li a:hover {
        color: #ffd700;
    }

    /* 主视觉区 */
    .hero {
        height: 100vh;
        display: flex;
        justify-content: center;
        align-items: center;
        background: radial-gradient(circle, rgba(255,87,34,1) 0%, rgba(141,39,109,1) 100%);
        animation: aurora-move 15s linear infinite;
        position: relative;
        overflow: hidden;
    }

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

    .hero-content {
        text-align: center;
        z-index: 1;
    }

    .hero-content h1 {
        font-size: 3em;
        margin-bottom: 20px;
        font-weight: 700;
        text-shadow: 2px 2px 8px rgba(0,0,0,0.5);
    }

    .hero-content p {
        font-size: 1.2em;
        margin-bottom: 30px;
        color: #f0f0f0;
    }

    .hero-content .btn {
        padding: 10px 20px;
        background: linear-gradient(135deg, #ff5722, #e91e63);
        border: none;
        border-radius: 25px;
        color: #ffffff;
        cursor: pointer;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
        position: relative;
        overflow: hidden;
    }

    .hero-content .btn::after {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        width: 0;
        height: 0;
        background: rgba(255, 255, 255, 0.5);
        border-radius: 50%;
        transform: translate(-50%, -50%);
        opacity: 0;
        transition: all 0.3s ease;
    }

    .hero-content .btn:active::after {
        width: 200px;
        height: 200px;
        opacity: 1;
    }

    .hero-content .btn:hover {
        transform: scale(1.05);
        box-shadow: 0 0 15px rgba(255, 255, 255, 0.7);
    }

    /* 主要内容区 */
    .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 80px 30px 30px 30px;
    }

    .section {
        margin-bottom: 60px;
    }

    .section h2 {
        font-size: 2.5em;
        margin-bottom: 20px;
        text-align: center;
        position: relative;
    }

    .section h2::after {
        content: '';
        width: 50px;
        height: 3px;
        background: #ffd700;
        position: absolute;
        left: 50%;
        bottom: -10px;
        transform: translateX(-50%);
    }

    .cards {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
    }

    .card {
        background: rgba(255, 255, 255, 0.1);
        backdrop-filter: blur(10px);
        border-radius: 10px;
        width: 30%;
        padding: 20px;
        margin-bottom: 20px;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .card:hover {
        transform: translateY(-10px);
        box-shadow: 0 4px 20px rgba(0,0,0,0.3);
    }

    .card h3 {
        margin-bottom: 15px;
        font-size: 1.5em;
        color: #ffd700;
    }

    .card p {
        font-size: 1em;
        color: #f0f0f0;
    }

    /* 示例展示 */
    .sample-display {
        background: rgba(0, 0, 0, 0.6);
        padding: 30px;
        border-radius: 10px;
        margin-top: 40px;
    }

    .sample-display h3 {
        font-size: 1.8em;
        margin-bottom: 15px;
        color: #ffeb3b;
    }

    .sample-display article {
        max-height: 600px;
        overflow-y: auto;
    }

    .sample-display pre {
        background: #2c2c2c;
        padding: 15px;
        border-radius: 5px;
        overflow-x: auto;
        margin-bottom: 20px;
    }

    .sample-display code {
        color: #00e676;
        font-family: 'Courier New', Courier, monospace;
    }

    /* 图片展示 */
    .images {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
    }

    .images img {
        width: 150px;
        height: 150px;
        object-fit: cover;
        border-radius: 10px;
        transition: transform 0.3s ease;
    }

    .images img:hover {
        transform: scale(1.1);
    }

    /* 提示信息 */
    .footer {
        text-align: center;
        padding: 20px;
        background: rgba(0, 0, 0, 0.5);
        color: #ffffff;
        position: fixed;
        bottom: 0;
        width: 100%;
        backdrop-filter: blur(5px);
    }

    /* 响应式设计 */
    @media (max-width: 1440px) {
        .card {
            width: 45%;
        }
    }

    @media (max-width: 1200px) {
        .container {
            padding: 60px 20px 20px 20px;
        }
        .card {
            width: 45%;
        }
    }

    @media (max-width: 1024px) {
        .card {
            width: 100%;
        }
    }

    @media (max-width: 768px) {
        .navbar ul {
            flex-direction: column;
            background: rgba(0, 0, 0, 0.8);
            position: absolute;
            top: 60px;
            left: -100%;
            width: 100%;
            transition: left 0.3s ease;
        }

        .navbar ul.active {
            left: 0;
        }

        .navbar ul li {
            margin: 15px 0;
            text-align: center;
        }

        .hero-content h1 {
            font-size: 2.5em;
        }

        .hero-content p {
            font-size: 1em;
        }

        .card {
            width: 100%;
        }
    }

    @media (max-width: 480px) {
        .hero-content h1 {
            font-size: 2em;
        }

        .hero-content p {
            font-size: 0.9em;
        }

        .navbar {
            padding: 10px 20px;
        }

        .navbar .logo {
            font-size: 1.2em;
        }

        .navbar ul li a {
            font-size: 0.9em;
        }

        .images img {
            width: 100px;
            height: 100px;
        }
    }

    @media (max-width: 320px) {
        .hero-content h1 {
            font-size: 1.8em;
        }

        .hero-content p {
            font-size: 0.8em;
        }

        .navbar ul li a {
            font-size: 0.8em;
        }

        .images img {
            width: 80px;
            height: 80px;
        }
    }