:root {
    --primary-color: #2C3E50;
    --secondary-color: #3498DB;
    --accent-color: #2ECC71;
    --text-color: #2C3E50;
    --light-bg: #ECF0F1;
    --card-bg: #FFFFFF;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--light-bg);
    margin: 0;
    padding: 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px 0;
}

.version-info {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin-top: 15px;
    flex-wrap: wrap;
}

.version, .update-date {
    font-size: 0.9rem;
    color: var(--secondary-color);
    background-color: rgba(255, 255, 255, 0.8);
    padding: 5px 10px;
    border-radius: 4px;
}

.official-link {
    color: var(--primary-color);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.9rem;
    transition: color 0.3s;
    padding: 5px 10px;
    border-radius: 4px;
    background-color: rgba(255, 255, 255, 0.8);
}

.official-link:hover {
    color: var(--accent-color);
    background-color: rgba(255, 255, 255, 0.9);
}

.title {
    color: var(--primary-color);
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.greeting {
    font-size: 1.2rem;
    color: var(--secondary-color);
}

.main-content {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.software-section h2, 
.info-section h2 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.software-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.software-card {
    background-color: var(--card-bg);
    border-radius: 8px;
    padding: 20px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.software-card:hover {
    transform: translateY(-5px);
}

.software-card h3 {
    margin-top: 0;
    margin-bottom: 5px;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 5px;
}

.software-version {
    font-size: 0.8em;
    background-color: var(--primary-color);
    color: white;
    padding: 2px 6px;
    border-radius: 4px;
}

.software-update {
    font-size: 0.8rem;
    color: var(--secondary-color);
    margin: 5px 0 10px 0;
}

.software-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 10px;
}

.download-btn {
    background-color: var(--accent-color);
    color: white;
    border: none;
    padding: 10px 15px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: background-color 0.3s;
    text-align: center;
    justify-content: center;
}

.official-link {
    background-color: var(--secondary-color);
    color: white;
    border: none;
    padding: 10px 15px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: background-color 0.3s;
    text-align: center;
    justify-content: center;
    text-decoration: none;
}

.official-link:hover {
    background-color: #2980B9;
}

.download-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 10px;
}

.download-btn:hover {
    background-color: #45a049;
}

.download-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.info-section {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.info-card {
    background-color: var(--card-bg);
    border-radius: 8px;
    padding: 20px;
    box-shadow: var(--shadow);
}

.datetime {
    font-size: 1.2rem;
    font-weight: bold;
}

.weather-container {
    width: 100%;
    overflow: hidden;
}

.footer {
    text-align: center;
    margin-top: 40px;
    padding: 20px 0;
    color: var(--secondary-color);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.update-link {
    color: var(--primary-color);
    text-decoration: none;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    transition: color 0.3s;
}

.update-link:hover {
    color: var(--accent-color);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .software-grid,
    .info-section {
        grid-template-columns: 1fr;
    }
    
    .header {
        padding: 10px 0;
    }
    
    .title {
        font-size: 2rem;
    }
    
    .weather-container iframe {
        width: 100% !important;
    }
}