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

body {
    font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.95);
    padding: 15px 40px;
    border-radius: 15px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    max-width: 1200px;
    margin: 0 auto 30px;
}

.logo h3 {
    color: #667eea;
    font-size: 1.2rem;
}

.nav-links {
    display: flex;
    gap: 10px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 18px;
    text-decoration: none;
    color: #666;
    border-radius: 25px;
    transition: all 0.3s ease;
    font-size: 0.95rem;
}

.nav-item:hover {
    background: #667eea;
    color: white;
}

.nav-item.active {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
}

.nav-icon {
    font-size: 1.1rem;
}

.main-container {
    max-width: 1200px;
    margin: 0 auto;
}

.content-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.page-title {
    text-align: center;
    color: #333;
    font-size: 2rem;
    margin-bottom: 10px;
}

.page-intro {
    text-align: center;
    color: #888;
    margin-bottom: 40px;
    font-size: 1rem;
}

.hobbies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.hobby-card {
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.hobby-card:hover {
    transform: translateY(-5px);
    border-color: #667eea;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.2);
}

.hobby-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.hobby-card h3 {
    color: #333;
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.hobby-card p {
    color: #666;
    font-size: 0.9rem;
    line-height: 1.6;
}

.bottom-text {
    text-align: center;
    color: white;
    margin-top: 30px;
    font-size: 1rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}