/* 全局样式设置 */
body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    color: #fff;
    background: linear-gradient(135deg, #00008B, #8A2BE2);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: bold;
    margin-top: 0;
}

p {
    line-height: 1.6;
    margin-bottom: 1rem;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* 顶部导航栏 */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    background: rgba(0, 0, 0, 0.5);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar .logo {
    font-size: 1.5rem;
    color: #FFA500;
}

.navbar ul {
    list-style: none;
    display: flex;
    gap: 1rem;
}

.navbar a {
    color: #fff;
    text-decoration: none;
    transition: color 0.3s ease;
}

.navbar a:hover {
    color: #00FF7F;
}

/* 英雄区 */
.hero-section {
    height: 90vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    background: url('https://images.gptkong.com/demo/sample1.png') no-repeat center/cover, linear-gradient(135deg, #00008B, #8A2BE2);
    background-blend-mode: overlay;
}

.hero-section h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero-section p {
    font-size: 1.2rem;
    max-width: 600px;
}

/* 内容矩阵区 */
.matrix-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.card {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 1rem;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    margin-bottom: 0.5rem;
}

.card:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

/* 动画与交互 */
@keyframes gradient-animation {
    0% { background-position: 0% 50%; }
    100% { background-position: 100% 50%; }
}

.body-animation {
    animation: gradient-animation 10s infinite alternate;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-section h1 {
        font-size: 2rem;
    }

    .card {
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .navbar {
        flex-direction: column;
        gap: 0.5rem;
    }
}

/* 代码块样式 */
pre {
    background: rgba(0, 0, 0, 0.7);
    padding: 1rem;
    border-radius: 5px;
    overflow-x: auto;
}

code {
    color: #00FF7F;
    font-size: 0.9rem;
}

/* 提示信息 */
.info-tip {
    text-align: center;
    font-size: 0.9rem;
    color: #FFA500;
    margin: 1rem 0;
}