/* 全局样式设置 */
body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(to bottom, #000f24, #1e203c);
    color: #ffffff;
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Exo 2.0', sans-serif;
    color: #00ffff;
    text-shadow: 0 0 8px rgba(0, 255, 255, 0.7);
}

a {
    color: #ff4500;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #ffa500;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.header {
    position: relative;
    height: 100vh;
    background: url('https://images.gptkong.com/demo/sample1.png') no-repeat center center/cover,
                linear-gradient(to right, #000033, #000000);
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.header h1 {
    font-size: 3rem;
    margin-bottom: 20px;
}

.section {
    padding: 60px 20px;
    position: relative;
    overflow: hidden;
}

.section:nth-child(even) {
    background: linear-gradient(to right, #1a1a33, #00001a);
}

.section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: -1;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.feature-item {
    background: linear-gradient(to bottom, #222, #333);
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-10px);
}

.data-visualization {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin-top: 40px;
}

.data-card {
    background: linear-gradient(to bottom, #333, #444);
    width: calc(33.33% - 20px);
    margin-bottom: 20px;
    padding: 20px;
    border-radius: 10px;
    position: relative;
    overflow: hidden;
}

.data-card img {
    position: absolute;
    bottom: -50px;
    right: -50px;
    opacity: 0.1;
    filter: blur(5px);
}

.interaction-tools {
    background: linear-gradient(to right, #1a1a33, #00001a);
    padding: 40px 20px;
    border-radius: 10px;
    margin-top: 40px;
}

.code-block {
    background: #000;
    color: #00ff00;
    padding: 20px;
    border-radius: 5px;
    overflow-x: auto;
    font-family: 'Courier New', Courier, monospace;
}

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

    .data-card {
        width: 100%;
    }
}