* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Microsoft YaHei", "PingFang TC", sans-serif;
    line-height: 1.8;
    color: #333;
    background: linear-gradient(135deg, #fdfbf7 0%, #f5efe6 100%);
    min-height: 100vh;
}

header {
    background: linear-gradient(135deg, #c0392b 0%, #8e2c1c 100%);
    color: white;
    padding: 2rem 0;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    letter-spacing: 2px;
}

header p {
    font-size: 1.1rem;
    opacity: 0.9;
}

nav {
    background: #a93226;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

nav a {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background 0.3s;
}

nav a:hover {
    background: #c0392b;
}

main {
    max-width: 1000px;
    margin: 2rem auto;
    padding: 0 1.5rem;
}

.hero {
    background: linear-gradient(135deg, #e67e22 0%, #d35400 100%);
    color: white;
    padding: 4rem 2rem;
    border-radius: 16px;
    text-align: center;
    margin-bottom: 3rem;
    box-shadow: 0 10px 40px rgba(230, 126, 34, 0.3);
}

.hero h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    font-size: 1.8rem;
    color: #2c3e50;
    margin: 3rem 0 2rem;
    position: relative;
}

.section-title::after {
    content: "";
    display: block;
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #e67e22 0%, #d35400 100%);
    margin: 0.5rem auto 0;
    border-radius: 2px;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.card-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, #e67e22 0%, #d35400 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 3rem;
}

.card-content {
    padding: 1.5rem;
}

.card h3 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.card p {
    color: #666;
    font-size: 0.95rem;
}

.card-link {
    display: inline-block;
    margin-top: 1rem;
    color: #d35400;
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s;
}

.card-link:hover {
    color: #e67e22;
}

.article {
    background: white;
    padding: 3rem;
    border-radius: 16px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    margin-bottom: 2rem;
}

.article-header {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 2px solid #eee;
}

.article-header h1 {
    font-size: 2.2rem;
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.article-meta {
    color: #888;
    font-size: 0.9rem;
}

.article-content h2 {
    color: #34495e;
    margin: 2rem 0 1rem;
    font-size: 1.5rem;
}

.article-content p {
    margin-bottom: 1.2rem;
    text-align: justify;
}

.article-content ul {
    margin: 1rem 0 1.5rem 2rem;
}

.article-content li {
    margin-bottom: 0.5rem;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: #d35400;
    text-decoration: none;
    font-weight: bold;
    margin-bottom: 1.5rem;
    transition: color 0.3s;
}

.back-link:hover {
    color: #e67e22;
}

footer {
    background: #2c3e50;
    color: white;
    text-align: center;
    padding: 2rem 0;
    margin-top: 4rem;
}

footer p {
    opacity: 0.8;
}