/* 基础样式 */
body {
    margin: 0;
    padding: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #121212, #1f1f1f);
    color: #fff;
    line-height: 1.6;
    overflow-x: hidden;
}
h1, h2, h3 {
    font-family: 'Orbitron', sans-serif;
    color: #ff69b4;
    text-shadow: 0 0 10px rgba(255, 105, 180, 0.7);
}
a {
    color: #03a9f4;
    text-decoration: none;
    transition: color 0.3s ease-in-out;
}
a:hover {
    color: #ff69b4;
}
.container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}
header {
    position: relative;
    height: 400px;
    background: url('https://images.gptkong.com/demo/sample1.png') no-repeat center/cover;
    background-color: #121212;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
    text-shadow: 0 0 20px rgba(0, 255, 255, 0.8);
}
header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1;
}
header h1 {
    position: relative;
    z-index: 2;
    font-size: 3rem;
    letter-spacing: 2px;
}
main {
    padding: 20px 0;
}
.card {
    background: rgba(0, 0, 0, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.5);
    transition: transform 0.3s ease-in-out;
}
.card:hover {
    transform: scale(1.05);
}
.image-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 10px;
}
.image-grid img {
    width: 100%;
    height: auto;
    border-radius: 5px;
    transition: transform 0.3s ease-in-out;
}
.image-grid img:hover {
    transform: scale(1.1);
}
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }
    .container {
        grid-template-columns: 1fr;
    }
}
footer {
    text-align: center;
    padding: 20px;
    background: #121212;
    color: #fff;
}
.animate-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease-in-out, transform 0.5s ease-in-out;
}
.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}