* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans TC", sans-serif;
            line-height: 1.6;
            color: #333;
            background: #fff;
        }
        
        /* 導航欄 */
        nav {
            background: #fff;
            box-shadow: 0 2px 4px rgba(0,0,0,0.1);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
        }
        
        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 1rem 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            font-size: 1.5rem;
            font-weight: bold;
            color: #FF6B6B;
            text-decoration: none;
        }
        
        .nav-links {
            display: flex;
            gap: 2rem;
            list-style: none;
        }
        
        .nav-links a {
            text-decoration: none;
            color: #555;
            font-weight: 500;
            transition: color 0.3s;
        }
        
        .nav-links a:hover {
            color: #FF6B6B;
        }
        
        /* Hero Section */
        .hero {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 8rem 2rem 4rem;
            text-align: center;
        }
        
        .hero h1 {
            font-size: 3rem;
            margin-bottom: 1rem;
            font-weight: 700;
        }
        
        .hero p {
            font-size: 1.25rem;
            margin-bottom: 2rem;
            opacity: 0.9;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        
        .cta-button {
            display: inline-block;
            background: #FF6B6B;
            color: white;
            padding: 1rem 2.5rem;
            border-radius: 50px;
            text-decoration: none;
            font-weight: bold;
            font-size: 1.1rem;
            transition: transform 0.3s, box-shadow 0.3s;
            box-shadow: 0 4px 15px rgba(255,107,107,0.4);
        }
        
        .cta-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(255,107,107,0.6);
        }
        
        /* 功能區塊 */
        .section {
            padding: 4rem 2rem;
            max-width: 1200px;
            margin: 0 auto;
        }
        
        .section-title {
            text-align: center;
            font-size: 2rem;
            margin-bottom: 3rem;
            color: #222;
        }
        
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-bottom: 3rem;
        }
        
        .feature-card {
            background: #f8f9fa;
            padding: 2rem;
            border-radius: 12px;
            border: 1px solid #e9ecef;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        
        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        }
        
        .feature-icon {
            font-size: 2.5rem;
            margin-bottom: 1rem;
        }
        
        .feature-card h3 {
            color: #333;
            margin-bottom: 0.5rem;
            font-size: 1.25rem;
        }
        
        .feature-card p {
            color: #666;
            font-size: 0.95rem;
            line-height: 1.5;
        }
        
        .feature-list {
            list-style: none;
            margin-top: 1rem;
            padding-left: 0;
        }
        
        .feature-list li {
            padding: 0.25rem 0;
            color: #555;
            font-size: 0.9rem;
            padding-left: 1.5rem;
            position: relative;
        }
        
        .feature-list li:before {
            content: "✓";
            position: absolute;
            left: 0;
            color: #667eea;
            font-weight: bold;
        }
        
        /* 詳細功能區 */
        .detail-section {
            background: #f8f9fa;
            padding: 4rem 2rem;
        }
        
        .detail-grid {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 3rem;
        }
        
        .detail-block {
            background: white;
            padding: 2rem;
            border-radius: 12px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
        }
        
        .detail-block h3 {
            color: #764ba2;
            margin-bottom: 1rem;
            font-size: 1.3rem;
            border-bottom: 2px solid #eee;
            padding-bottom: 0.5rem;
        }
        
        .detail-block ul {
            list-style: none;
            padding-left: 0;
        }
        
        .detail-block li {
            padding: 0.5rem 0;
            border-bottom: 1px solid #f0f0f0;
            color: #555;
            font-size: 0.95rem;
        }
        
        .detail-block li:last-child {
            border-bottom: none;
        }
        
        .tag {
            display: inline-block;
            background: #e3f2fd;
            color: #1976d2;
            padding: 0.2rem 0.6rem;
            border-radius: 12px;
            font-size: 0.8rem;
            margin-right: 0.5rem;
            margin-top: 0.3rem;
        }
        
        /* 安全區塊 */
        .safety-section {
            background: #fff;
            padding: 4rem 2rem;
            text-align: center;
        }
        
        .safety-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            max-width: 1000px;
            margin: 2rem auto 0;
        }
        
        .safety-item {
            padding: 1.5rem;
        }
        
        .safety-icon {
            width: 60px;
            height: 60px;
            background: #e8f5e9;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1rem;
            font-size: 1.5rem;
        }
        
        /* 頁腳 */
        footer {
            background: #2c3e50;
            color: white;
            padding: 3rem 2rem 1rem;
        }
        
        .footer-content {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 2rem;
        }
        
        .footer-section h4 {
            margin-bottom: 1rem;
            color: #fff;
        }
        
        .footer-section p, .footer-section a {
            color: #bdc3c7;
            text-decoration: none;
            line-height: 1.8;
            font-size: 0.9rem;
        }
        
        .footer-section a:hover {
            color: #fff;
        }
        
        .footer-bottom {
            border-top: 1px solid #34495e;
            padding-top: 2rem;
            text-align: center;
            color: #95a5a6;
            font-size: 0.85rem;
        }
        
        .footer-links {
            display: flex;
            justify-content: center;
            gap: 2rem;
            margin-bottom: 1rem;
            flex-wrap: wrap;
        }
        
        .footer-links a {
            color: #bdc3c7;
            text-decoration: none;
        }
        
        /* 響應式 */
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }
            
            .hero h1 {
                font-size: 2rem;
            }
            
            .hero p {
                font-size: 1rem;
            }
            
            .features-grid, .detail-grid {
                grid-template-columns: 1fr;
            }
        }