* { margin: 0; padding: 0; box-sizing: border-box; }
        body { font-family: 'Inter', sans-serif; background: #eef2f9; min-height: 100vh; display: flex; flex-direction: column; }
        
        /* 顶部导航栏 */
        .navbar { background: white; box-shadow: 0 2px 10px rgba(0,0,0,0.05); position: sticky; top: 0; z-index: 1000; padding: 16px 0; }
        .container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
        .nav-container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; }
        .logo { display: flex; align-items: center; gap: 12px; text-decoration: none; }
        .logo h1 { font-size: 1.7rem; font-weight: 800; background: linear-gradient(135deg, #1a5f3a 0%, #2d8c4e 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }
        .logo span { font-size: 0.7rem; color: #4a7c5e; display: block; }
        .nav-links { display: flex; gap: 28px; align-items: center; }
        .nav-links a { text-decoration: none; font-weight: 500; color: #1a3a2a; transition: color 0.2s; }
        .nav-links a:hover { color: #2d8c4e; }
        
        /* 主体内容 */
        .main-content { flex: 1; padding: 40px 20px; }
        .inquiry-container { max-width: 900px; width: 100%; margin: 0 auto; }
        .inquiry-card { background: white; border-radius: 32px; box-shadow: 0 25px 50px -12px rgba(0,0,0,0.15); overflow: hidden; }
        .inquiry-header { background: linear-gradient(135deg, #1a5f3a 0%, #2d8c4e 100%); padding: 32px 40px; color: white; }
        .inquiry-header h1 { font-size: 1.8rem; font-weight: 700; margin-bottom: 8px; }
        .inquiry-header p { opacity: 0.9; font-size: 0.9rem; }
        .inquiry-body { padding: 40px; }
        .form-row { display: flex; flex-wrap: wrap; gap: 24px; margin-bottom: 24px; }
        .form-group { flex: 1; min-width: 200px; }
        .form-group label { display: block; margin-bottom: 8px; font-weight: 600; color: #1a3a2a; font-size: 0.85rem; }
        .form-group label .required { color: #ef4444; margin-left: 4px; }
        .form-group input, .form-group select, .form-group textarea { width: 100%; padding: 12px 16px; border: 1px solid #cbd5e1; border-radius: 16px; font-family: inherit; transition: all 0.2s; font-size: 0.9rem; }
        .form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: #2d8c4e; box-shadow: 0 0 0 3px rgba(45,140,78,0.1); }
        .form-group textarea { resize: vertical; min-height: 120px; }
        .product-badge { background: #e8f0eb; padding: 12px 16px; border-radius: 16px; margin-bottom: 24px; display: flex; align-items: center; gap: 12px; }
        .product-badge i { color: #2d8c4e; font-size: 1.2rem; }
        .submit-btn { background: #2d8c4e; color: white; border: none; padding: 14px 32px; border-radius: 40px; font-weight: 600; cursor: pointer; width: 100%; font-size: 1rem; transition: all 0.2s; }
        .submit-btn:hover { background: #1a5f3a; transform: translateY(-2px); }
        .alert-success { background: #d1fae5; color: #065f46; padding: 16px 20px; border-radius: 16px; margin-bottom: 24px; }
        .alert-error { background: #fee2e2; color: #991b1b; padding: 16px 20px; border-radius: 16px; margin-bottom: 24px; }
        .back-link { display: inline-block; margin-top: 20px; text-align: center; width: 100%; color: #4a7c5e; text-decoration: none; font-size: 0.85rem; }
        .back-link:hover { color: #2d8c4e; }
        
        /* 底部页脚 */
        .footer { background: #0a2f1a; color: #b8d9c4; padding: 48px 0 24px; margin-top: 60px; }
        .footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 40px; margin-bottom: 40px; }
        .footer-col h4 { color: white; margin-bottom: 20px; font-size: 1rem; }
        .footer-col p, .footer-col a { color: #b8d9c4; font-size: 0.85rem; line-height: 1.8; text-decoration: none; }
        .footer-col a:hover { color: #4caf6e; }
        .social-links { display: flex; gap: 16px; margin-top: 16px; }
        .social-links a { width: 36px; height: 36px; background: rgba(255,255,255,0.1); border-radius: 50%; display: flex; align-items: center; justify-content: center; transition: all 0.2s; }
        .social-links a:hover { background: #4caf6e; color: #0a2f1a; }
        .copyright { text-align: center; padding-top: 24px; border-top: 1px solid #2a6a46; font-size: 0.75rem; }
        
        @media (max-width: 768px) {
            .nav-container { flex-direction: column; gap: 16px; }
            .nav-links { flex-wrap: wrap; justify-content: center; gap: 16px; }
            .inquiry-header { padding: 24px; }
            .inquiry-body { padding: 24px; }
            .form-row { flex-direction: column; gap: 16px; }
            .footer-grid { grid-template-columns: 1fr; text-align: center; }
            .social-links { justify-content: center; }
        }