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

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
}

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

header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 30px 0;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    margin-bottom: 30px;
}

header h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

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

nav {
    background: white;
    padding: 15px 20px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 30px;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

nav a {
    text-decoration: none;
    color: #667eea;
    padding: 10px 20px;
    border-radius: 25px;
    transition: all 0.3s ease;
    font-weight: 500;
}

nav a:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin-bottom: 30px;
}

.product-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.product-card-header {
    padding: 25px;
    color: white;
    text-align: center;
}

.product-card-header h3 {
    font-size: 1.5em;
    margin-bottom: 10px;
}

.product-card-header p {
    opacity: 0.9;
    font-size: 0.95em;
}

.product-card-body {
    padding: 25px;
}

.product-card-body h4 {
    color: #667eea;
    margin-bottom: 15px;
    font-size: 1.1em;
}

.product-card-body ul {
    list-style: none;
    margin-bottom: 20px;
}

.product-card-body li {
    padding: 8px 0;
    border-bottom: 1px solid #f0f0f0;
    display: flex;
    align-items: center;
}

.product-card-body li:last-child {
    border-bottom: none;
}

.product-card-body li::before {
    content: "✓";
    color: #667eea;
    font-weight: bold;
    margin-right: 10px;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-decoration: none;
    border-radius: 25px;
    transition: all 0.3s ease;
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    border: none;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: white;
    color: #667eea;
    border: 2px solid #667eea;
}

.btn-secondary:hover {
    background: #667eea;
    color: white;
}

.page-content {
    background: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    margin-bottom: 30px;
}

.page-content h2 {
    color: #667eea;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 3px solid #667eea;
}

.page-content h3 {
    color: #764ba2;
    margin: 25px 0 15px 0;
}

.page-content p {
    margin-bottom: 15px;
    line-height: 1.8;
}

.page-content ul, .page-content ol {
    margin-left: 25px;
    margin-bottom: 15px;
}

.page-content li {
    margin-bottom: 8px;
}

.info-box {
    background: linear-gradient(135deg, #f5f7fa 0%, #e8eef5 100%);
    padding: 20px;
    border-radius: 10px;
    margin: 20px 0;
    border-left: 4px solid #667eea;
}

.warning-box {
    background: linear-gradient(135deg, #fff5f5 0%, #ffe8e8 100%);
    padding: 20px;
    border-radius: 10px;
    margin: 20px 0;
    border-left: 4px solid #e53e3e;
}

.success-box {
    background: linear-gradient(135deg, #f0fff4 0%, #e6ffed 100%);
    padding: 20px;
    border-radius: 10px;
    margin: 20px 0;
    border-left: 4px solid #38a169;
}

footer {
    text-align: center;
    padding: 30px 0;
    color: #666;
    margin-top: 30px;
}

.breadcrumb {
    background: white;
    padding: 15px 20px;
    border-radius: 10px;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.breadcrumb a {
    color: #667eea;
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.breadcrumb span {
    margin: 0 10px;
    color: #999;
}

.nas-gradient {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.win-gradient {
    background: linear-gradient(135deg, #0984e3 0%, #74b9ff 100%);
}

.gaming-gradient {
    background: linear-gradient(135deg, #00b894 0%, #55efc4 100%);
}

@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    header h1 {
        font-size: 2em;
    }
    
    nav ul {
        flex-direction: column;
        align-items: center;
    }
    
    .product-grid {
        grid-template-columns: 1fr;
    }
    
    .page-content {
        padding: 20px;
    }
}