* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background: linear-gradient(to bottom, #e9efff, #fff);
            color: #333;
            line-height: 1.6;
            min-height: 100vh;
        }
        
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 3rem 1.5rem;
        }
        
        
        .header {
            text-align: center;
            margin-bottom: 3.5rem;
            padding: 0 1rem;
        }
        
        .header h1 {
            font-size: 2.6rem;
            color: #2d3748;
            margin-bottom: 1.2rem;
            font-weight: 700;
            letter-spacing: -0.5px;
        }
        
        .header p {
            font-size: 1.15rem;
            color: #4a5568;
            max-width: 700px;
            margin: 0 auto;
            line-height: 1.7;
        }
        
        
        .pricing-card {
            background-color: #fff;
            border-radius: 16px;
            box-shadow: 0 6px 18px rgba(0,0,0,0.06);
            padding: 3rem;
            margin-bottom: 4rem;
            border-top: 4px solid #2b6cb0; 
        }
        
       
        .price-section {
            text-align: center;
            margin-bottom: 3rem;
            padding: 2.5rem;
            background-color: #f7faff; 
            border-radius: 12px;
        }
        
        .discount-badge {
            display: inline-block;
            background-color: #ed8936;
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            padding: 0.4rem 1.2rem;
            border-radius: 20px;
            margin-bottom: 1rem;
        }
        
        .original-price {
            font-size: 1.3rem;
            color: #718096;
            text-decoration: line-through;
            margin-bottom: 0.8rem;
            font-weight: 500;
        }
        
        .discount-price {
            font-size: 4rem;
            font-weight: 700;
            color: #2b6cb0;
            margin-bottom: 0.6rem;
            line-height: 1.2;
        }
        
        .price-note {
            font-size: 1.05rem;
            color: #4a5568;
            margin-bottom: 1.5rem;
        }
        
       
        .buy-btn {
            display: inline-block;
            background-color: #2b6cb0;
            color: #fff;
            font-weight: 600;
            font-size: 1.15rem;
            padding: 1.1rem 2.8rem;
            border-radius: 10px;
            text-decoration: none;
            transition: all 0.3s ease;
            box-shadow: 0 4px 12px rgba(43, 108, 176, 0.2);
            cursor: pointer;
        }
        
        .buy-btn:hover {
            background-color: #1a4b8c; 
            transform: scale(1.03);
            box-shadow: 0 6px 16px rgba(43, 108, 176, 0.3);
        }
        
        
        .features-section {
            margin-bottom: 1rem;
        }
        
        .features-section h2 {
            font-size: 1.6rem;
            color: #2d3748;
            margin-bottom: 2rem;
            font-weight: 600;
            padding-left: 0.5rem;
            border-left: 3px solid #2b6cb0; 
        }
        
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1.8rem;
        }
        
        .feature-item {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 0.8rem 0;
        }
        
       
        .feature-icon {
            color: #2b6cb0;
            font-size: 0.9rem;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            border: 1.5px solid #2b6cb0;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .feature-text {
            color: #4a5568;
            font-size: 1.05rem;
            line-height: 1.6;
        }
        
        .feature-category {
            margin-top: 2.5rem;
            padding-top: 2rem;
            border-top: 1px solid #f0f4f9;
        }
        
        .feature-category h3 {
            font-size: 1.3rem;
            color: #2d3748;
            margin-bottom: 1.3rem;
            font-weight: 600;
            color: #2b6cb0; 
        }
        
       
        .faq-section {
            background-color: #fff;
            border-radius: 16px;
            box-shadow: 0 6px 18px rgba(0,0,0,0.06);
            padding: 3rem;
            margin-bottom: 4rem;
        }
        
        .faq-section h2 {
            font-size: 1.9rem;
            color: #2d3748;
            margin-bottom: 2.5rem;
            font-weight: 600;
            text-align: center;
            position: relative;
        }
        
        .faq-section h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 3px;
            background-color: #2b6cb0;
            margin: 1rem auto 0;
            border-radius: 2px;
        }
        
        .faq-item {
            margin-bottom: 2rem;
            padding: 1.5rem;
            border-radius: 10px;
            transition: background-color 0.3s ease;
        }
        
        .faq-item:hover {
            background-color: #f7faff;
        }
        
        .faq-item:last-child {
            margin-bottom: 0;
        }
        
        .faq-question {
            font-size: 1.15rem;
            color: #2d3748;
            margin-bottom: 1rem;
            font-weight: 500;
        }
        
        .faq-answer {
            font-size: 1.05rem;
            color: #4a5568;
            line-height: 1.8;
        }
        
        
        .cta-section {
            background: linear-gradient(135deg, #2b6cb0, #1a4b8c); 
            color: #fff;
            border-radius: 16px;
            padding: 4rem 2rem;
            text-align: center;
            box-shadow: 0 8px 28px rgba(43, 108, 176, 0.25);
            position: relative;
            overflow: hidden;
        }
        
        
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -50px;
            width: 150px;
            height: 150px;
            background-color: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
        }
        
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -30px;
            left: -30px;
            width: 100px;
            height: 100px;
            background-color: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
        }
        
        .cta-content {
            position: relative;
            max-width: 750px;
            margin: 0 auto;
        }
        
        .cta-section h2 {
            font-size: 2rem;
            margin-bottom: 1.5rem;
            font-weight: 600;
            line-height: 1.3;
        }
        
        .cta-section p {
            font-size: 1.15rem;
            margin-bottom: 2.5rem;
            opacity: 0.95;
            line-height: 1.8;
        }
        
        .cta-button {
            display: inline-block;
            background-color: #fff;
            color: #2b6cb0;
            font-weight: 600;
            font-size: 1.2rem;
            padding: 1.2rem 3.2rem;
            border-radius: 10px;
            text-decoration: none;
            transition: all 0.3s ease;
            box-shadow: 0 4px 14px rgba(255, 255, 255, 0.2);
        }
        
        .cta-button:hover {
            background-color: #f7fafc;
            color: #1a4b8c;
            transform: scale(1.05);
            box-shadow: 0 6px 18px rgba(255, 255, 255, 0.3);
        }
        
        
        @media (max-width: 768px) {
            .header h1 {
                font-size: 2.2rem;
            }
            
            .pricing-card, .faq-section {
                padding: 2rem 1.5rem;
            }
            
            .price-section {
                padding: 1.8rem 1rem;
            }
            
            .discount-price {
                font-size: 3.2rem;
            }
            
            .buy-btn {
                padding: 1rem 2.2rem;
                font-size: 1.05rem;
            }
            
            .features-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            
            .cta-section {
                padding: 3rem 1.5rem;
            }
            
            .cta-section h2 {
                font-size: 1.7rem;
            }
            
            .cta-button {
                padding: 1.1rem 2.8rem;
                font-size: 1.1rem;
            }
        }
        
        @media (max-width: 480px) {
            .container {
                padding: 2rem 1rem;
            }
            
            .header h1 {
                font-size: 1.9rem;
            }
            
            .discount-price {
                font-size: 2.8rem;
            }
            
            .buy-btn {
                padding: 0.9rem 1.8rem;
                font-size: 1rem;
            }
            
            .cta-section h2 {
                font-size: 1.5rem;
            }
            
            .cta-button {
                padding: 1rem 2.2rem;
                font-size: 1rem;
            }
        }
        
        /*tanchu*/
    .consult-btn {
      background-color: #FF7A00;
      color: white;
      font-weight: bold;
      padding: 16px 48px;
      border-radius: 30px;
      border: none;
      font-size: 18px;
      box-shadow: 0 4px 12px rgba(255, 122, 0, 0.3);
      cursor: pointer;
      transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
      margin: 32px auto 0;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .consult-btn:before {
      content: "💬";
      margin-right: 8px;
      transition: transform 0.3s ease;
    }

    .consult-btn:hover {
      background-color: #e66a00;
      transform: translateY(-5px);
      box-shadow: 0 10px 20px rgba(255, 122, 0, 0.4);
    }

    .consult-btn:hover:before {
      transform: rotate(15deg);
    }

    .consult-btn.clicked {
      transform: scale(0.95);
      box-shadow: 0 2px 8px rgba(255, 122, 0, 0.2);
    }

    .qrcode-modal {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background-color: rgba(0, 0, 0, 0.7);
      z-index: 50;
      display: flex;
      align-items: center;
      justify-content: center;
      opacity: 0;
      visibility: hidden;
      transition: opacity 0.3s ease, visibility 0.3s ease;
    }

    .modal-content {
      background-color: white;
      border-radius: 16px;
      padding: 32px;
      max-width: 320px;
      width: 100%;
      margin: 0 16px;
      text-align: center;
      transform: translateY(30px) scale(0.95);
      transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    }

    .qrcode-modal.active {
      opacity: 1;
      visibility: visible;
    }

    .qrcode-modal.active .modal-content {
      transform: translateY(0) scale(1);
    }

    .modal-title {
      font-size: 20px;
      font-weight: bold;
      margin-bottom: 16px;
      position: relative;
      display: inline-block;
    }

    .modal-title:after {
      content: "";
      position: absolute;
      bottom: -6px;
      left: 50%;
      transform: translateX(-50%);
      width: 0;
      height: 3px;
      background-color: #FF7A00;
      transition: width 0.3s ease 0.2s;
    }

    .qrcode-modal.active .modal-title:after {
      width: 60%;
    }

    .qrcode-container {
      background-color: #f3f4f6;
      padding: 16px;
      border-radius: 8px;
      display: inline-block;
      margin: 24px 0;
      transform: scale(0.9);
      opacity: 0;
      transition: transform 0.3s ease 0.3s, opacity 0.3s ease 0.3s;
    }

    .qrcode-modal.active .qrcode-container {
      transform: scale(1);
      opacity: 1;
    }

    .qrcode-img {
      width: 192px;
      height: 192px;
    }

    .modal-desc {
      font-size: 14px;
      color: #6b7280;
      margin-bottom: 24px;
      opacity: 0;
      transform: translateY(10px);
      transition: opacity 0.3s ease 0.4s, transform 0.3s ease 0.4s;
    }

    .qrcode-modal.active .modal-desc {
      opacity: 1;
      transform: translateY(0);
    }

    .close-modal {
      background-color: #e5e7eb;
      color: #374151;
      font-weight: 500;
      padding: 8px 24px;
      border-radius: 20px;
      border: none;
      cursor: pointer;
      transition: all 0.3s ease;
      opacity: 0;
      transform: translateY(10px);
      transition: all 0.3s ease 0.5s;
    }

    .qrcode-modal.active .close-modal {
      opacity: 1;
      transform: translateY(0);
    }

    .close-modal:hover {
      background-color: #d1d5db;
      transform: scale(1.05);
    }

    .close-modal:active {
      transform: scale(0.98);
    }
    .logo-dy img{
        margin: 20px;
        width: 10%;
    }