/* 全局样式 */
body {
    margin: 0;
    padding: 0;
    font-family: 'Montserrat', sans-serif;
    background: linear-gradient(135deg, #1e3c72, #2a5298);
    color: #ffffff;
    line-height: 1.6;
}
header {
    background: linear-gradient(135deg, #2a5298, #1e3c72);
    padding: 20px;
    text-align: center;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 6px rgba(0,0,0,0.3);
}
header h1 {
    margin: 0;
    font-size: 2.5rem;
    animation: fadeInDown 1s ease-out;
}
nav ul {
    list-style: none;
    padding: 0;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 10px;
}
nav ul li {
    margin: 0 15px;
}
nav ul li a {
    color: #ffffff;
    text-decoration: none;
    font-size: 1.1rem;
    transition: color 0.3s ease;
}
nav ul li a:hover {
    color: #00d2ff;
}
.main {
    padding: 40px 20px;
    max-width: 1200px;
    margin: 0 auto;
}
.article {
    background: rgba(0, 0, 0, 0.5);
    padding: 30px;
    border-radius: 10px;
    margin-bottom: 40px;
}
.article h2 {
    font-size: 2rem;
    margin-bottom: 20px;
    animation: slideInLeft 1s ease-out;
}
.article h3 {
    font-size: 1.5rem;
    margin-top: 30px;
    margin-bottom: 15px;
}
.article p {
    font-size: 1.1rem;
    margin-bottom: 15px;
}
.article pre {
    background: #2a2a2a;
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
    margin-bottom: 15px;
}
.article code {
    color: #00d2ff;
    font-family: 'Courier New', Courier, monospace;
}
.article table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}
.article table, .article th, .article td {
    border: 1px solid #ffffff;
}
.article th, .article td {
    padding: 10px;
    text-align: left;
}
.article ul, .article ol {
    margin-bottom: 20px;
    padding-left: 20px;
}
.gallery {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
}
.gallery img {
    width: 100%;
    max-width: 320px;
    border-radius: 10px;
    transition: transform 0.3s ease;
}
.gallery img:hover {
    transform: scale(1.05);
}
.footer {
    background: linear-gradient(135deg, #2a5298, #1e3c72);
    padding: 20px;
    text-align: center;
}
.footer p {
    margin: 0;
    font-size: 1rem;
}
@media (max-width: 1440px) {
    .main {
        padding: 30px 15px;
    }
}
@media (max-width: 1200px) {
    .article {
        padding: 25px;
    }
    header h1 {
        font-size: 2rem;
    }
}
@media (max-width: 1024px) {
    nav ul {
        flex-direction: column;
    }
    nav ul li {
        margin: 10px 0;
    }
}
@media (max-width: 768px) {
    .article h2 {
        font-size: 1.8rem;
    }
    .article h3 {
        font-size: 1.3rem;
    }
}
@media (max-width: 480px) {
    header h1 {
        font-size: 1.8rem;
    }
    nav ul li a {
        font-size: 1rem;
    }
    .article pre {
        font-size: 0.9rem;
    }
}
@media (max-width: 320px) {
    .article p, .article ul, .article ol, .article table, .article pre {
        font-size: 1rem;
    }
}
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}
.button:hover {
    transform: scale(1.1);
    transition: transform 0.3s ease;
}