/* 全局样式 */
body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #121212, #1e1e3f, #121212);
    color: #ffffff;
    line-height: 1.6;
    padding: 20px;
    overflow-x: hidden;
}
h1, h2, h3, h4, h5, h6 {
    font-family: 'Orbitron', sans-serif;
    color: #39ff14;
    margin-top: 20px;
    margin-bottom: 10px;
}
p, li, table {
    font-size: 1rem;
    margin-bottom: 15px;
}
a {
    color: #39ff14;
    text-decoration: none;
    transition: color 0.3s ease;
}
a:hover {
    color: #00ffff;
}
pre {
    background-color: #1e1e1e;
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
    font-family: 'Fira Code', monospace;
    font-size: 0.9rem;
    color: #00ffff;
}
code {
    background-color: #1e1e1e;
    padding: 2px 5px;
    border-radius: 4px;
    font-family: 'Fira Code', monospace;
    color: #00ffff;
}

/* 卡片布局 */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 30px;
}
.card {
    background-color: #1e1e1e;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    padding: 15px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid transparent;
}
.card:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 12px rgba(0, 0, 0, 0.2);
    border: 1px solid #39ff14;
}
.card img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    margin-bottom: 10px;
}
.card-title {
    font-size: 1.2rem;
    font-weight: bold;
    color: #00ffff;
}
.card-description {
    color: #cccccc;
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }
    .card-grid {
        gap: 15px;
    }
    pre {
        font-size: 0.8rem;
    }
}
@media (max-width: 480px) {
    h1 {
        font-size: 1.5rem;
    }
    .card {
        padding: 10px;
    }
}

/* 动态粒子效果 */
.particle-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}
.particle {
    position: absolute;
    width: 5px;
    height: 5px;
    background-color: rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    animation: float 5s infinite ease-in-out;
}
@keyframes float {
    0% { transform: translateY(0); opacity: 0.5; }
    50% { transform: translateY(-20px); opacity: 1; }
    100% { transform: translateY(0); opacity: 0.5; }
}

/* 提示文字样式 */
.notice {
    text-align: center;
    font-size: 0.9rem;
    color: #ff4500;
    margin-bottom: 20px;
}