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i{position:absolute;left:0;top:50%;transform:translateY(-50%);background:linear-gradient(135deg,gold,orange);width:32px;height:32px;border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:1rem}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media (max-width:768px){.product-guide{padding:20px;margin:25px 0}.product-guide h2{font-size:1.3rem;padding-left:12px;margin-bottom:15px}.faq-title,.products-title,.testimonials-title{font-size:1.4rem;padding-left:35px}.faq-title i,.testimonials-title i{width:28px;height:28px;font-size:.9rem}}@media (max-width:576px){.product-guide{padding:18px}.product-guide h2{font-size:1.2rem}.faq-title,.products-title,.testimonials-title{font-size:1.3rem;padding-left:30px}.faq-answer{font-size:14px}.faq-answer .faq-expanded{padding:12px}}.trust-badges{display:flex;flex-wrap:wrap;gap:15px;justify-content:center;margin:30px 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var(--border)}.article-bd-title{font-size:2.2rem;font-weight:800;margin-bottom:15px;line-height:1.3;color:var(--dark)}.article-bd-meta{display:flex;gap:20px;font-size:14px;color:var(--gray)}.article-bd-date,.article-bd-views{display:flex;align-items:center;gap:5px}.article-bd-content{font-size:16px;line-height:1.8;color:#333}.article-bd-content h2{font-size:1.6rem;font-weight:700;margin:30px 0 15px;color:var(--dark)}.article-bd-content h3{font-size:1.3rem;font-weight:600;margin:25px 0 12px;color:var(--dark)}.article-bd-content p{margin-bottom:16px}.article-bd-content ol,.article-bd-content ul{margin:16px 0;padding-left:24px}.article-bd-content li{margin-bottom:8px}.article-bd-content blockquote{border-left:4px solid var(--primary);padding-left:16px;margin:20px 0;font-style:italic;color:var(--gray)}.article-bd-content img{max-width:100%;height:auto;border-radius:8px;margin:20px 0}.article-bd-content table{width:100%;border-collapse:collapse;margin:20px 0}.article-bd-content td,.article-bd-content th{padding:12px 15px;text-align:left;border-bottom:1px solid var(--border)}.article-bd-content th{background:var(--light);font-weight:600}.article-bd-actions{display:flex;justify-content:space-between;margin-top:40px;padding-top:20px;border-top:1px solid var(--border)}.back-btn{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;background:var(--light);color:var(--dark);text-decoration:none;border-radius:8px;font-weight:600;transition:all .3s}.back-btn:hover{background:#e9ecef;transform:translateY(-2px)}@media (max-width:768px){.article-bd-title{font-size:1.8rem}.article-bd-meta{flex-direction:column;gap:8px}.article-bd-actions{flex-direction:column;gap:15px}.back-btn{width:100%;justify-content:center}}.breadcrumb{font-size:.9rem;color:var(--text-secondary)}.breadcrumb a{color:var(--primary);text-decoration:none;transition:var(--transition)}.breadcrumb a:hover{text-decoration:underline}.breadcrumb span{margin:0 8px}.product-d-detail{background:var(--card-bg);border-radius:var(--card-radius);padding:40px;box-shadow:var(--shadow);border:1px solid var(--border);margin-bottom:60px;display:grid;grid-template-columns:1fr 1fr;gap:40px}.product-d-info,.purchase-options{border:none}.product-d-title{font-size:2rem;font-weight:800;margin-bottom:20px;color:var(--text-primary);line-height:1.3}.product-d-title i{color:var(--primary);margin-right:10px}.product-d-price{font-size:2.5rem;font-weight:800;color:var(--price-red);margin-bottom:30px;display:flex;align-items:center;gap:10px}.product-d-price i{color:var(--price-red)}.product-d-specs{margin-bottom:30px}.spec-d-row{display:flex;padding:15px 0;border-bottom:1px solid var(--border)}.spec-d-row:last-child{border-bottom:none}.spec-d-label{flex:0 0 140px;color:var(--text-secondary);font-weight:600;display:flex;align-items:center;gap:8px}.spec-d-value{flex:1;font-weight:600;color:var(--text-primary)}.spec-d-value.highlight{color:var(--success)}.option-title{font-size:1.5rem;font-weight:700;margin-bottom:25px;color:var(--text-primary);display:flex;align-items:center;gap:10px}.option-title i{color:var(--primary)}.form-group{margin-bottom:25px}.form-label{display:block;margin-bottom:10px;color:var(--text-secondary);font-weight:600;font-size:.95rem;display:flex;align-items:center;gap:5px}.required{color:var(--price-red)}.email-input{width:100%;padding:12px 15px;border:2px solid var(--border);border-radius:var(--btn-radius);font-size:1rem;transition:var(--transition)}.email-input:focus{outline:0;border-color:var(--primary);box-shadow:0 0 0 3px rgba(255,0,80,.1)}.email-hint{margin-top:8px;font-size:.85rem;color:var(--text-secondary);display:flex;align-items:center;gap:5px}.quantity-selector{display:flex;align-items:center;background:#fff;border-radius:var(--btn-radius);border:2px solid var(--border);overflow:hidden;transition:var(--transition);max-width:150px}.quantity-selector:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(255,0,80,.1)}.quantity-btn{width:40px;height:40px;line-height:40px;border:none;background:var(--light);color:var(--text-primary);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1rem;transition:var(--transition)}.quantity-btn:hover{background:#f0f0f0}.quantity-btn:disabled{opacity:.5;cursor:not-allowed}.quantity-input{flex:1;height:40px;text-align:center;border:none;background:0 0;font-size:1rem;font-weight:600;color:var(--text-primary);outline:0;min-width:60px}.quantity-input::-webkit-inner-spin-button,.quantity-input::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}.quantity-input[type=number]{-moz-appearance:textfield}.payment-section{margin-bottom:20px}.payment-label{font-size:.95rem;color:var(--text-primary);margin-bottom:8px;font-weight:600}.payment-methods{display:flex;gap:8px;flex-wrap:wrap}.payment-method{flex:1;min-width:120px;padding:12px 8px;border:2px solid var(--border);border-radius:var(--btn-radius);background:#fff;cursor:pointer;transition:var(--transition);text-align:center;font-size:.85rem;font-weight:600}.payment-method.selected,.payment-method:hover{border-color:var(--primary);background:var(--light)}.payment-method input[type=radio]{display:none}.payment-icon{margin-bottom:5px}.payment-icon>img{border-radius:10px}.total-price{background:linear-gradient(135deg,var(--light),#f8f9fa);padding:20px;border-radius:var(--card-radius);margin-bottom:30px;display:flex;justify-content:space-between;align-items:center;border:1px solid var(--border)}.total-label{font-size:1.1rem;color:var(--text-primary);font-weight:600;display:flex;align-items:center;gap:8px}.total-amount{font-size:2rem;font-weight:800;color:var(--price-red)}.action-buttons{display:flex;gap:15px}.btn,.related-btn{padding:15px 25px;border:none;border-radius:var(--btn-radius);font-size:1rem;cursor:pointer;transition:var(--transition);font-weight:700;flex:1;text-align:center;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:8px}.related-btn{padding:6px 25px}.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;box-shadow:0 4px 12px rgba(255,0,80,.2)}.btn-primary:hover{background:linear-gradient(135deg,var(--primary-dark),#c70039);box-shadow:0 8px 20px rgba(255,0,80,.3)}.btn-primary:disabled{opacity:.6;cursor:not-allowed;transform:none}.btn-secondary{background:linear-gradient(135deg,var(--light),#e9ecef);color:var(--text-primary);border:1px solid var(--border)}.btn-secondary:hover{background:linear-gradient(135deg,#e9ecef,#dee2e6)}.product-d-description{grid-column:1/-1;margin-top:20px}.description-d-title{font-size:1.5rem;margin-bottom:25px;color:var(--text-primary);display:flex;align-items:center;gap:10px;font-weight:700}.description-d-title i{color:var(--primary)}.description-d-content{line-height:1.8;color:var(--text-secondary)}.description-d-content p{margin-bottom:20px;font-size:1.05rem;line-height:1.8}.description-d-content ol,.description-d-content ul{margin:20px 0;padding-left:25px}.description-d-content li{margin-bottom:10px;line-height:1.6;display:flex;align-items:flex-start;gap:8px}.description-d-content li i{color:var(--primary);margin-top:3px}.description-d-content h3{font-size:1.3rem;color:var(--text-primary);margin:25px 0 15px;font-weight:600;display:flex;align-items:center;gap:10px}.description-d-content h3 i{color:var(--primary)}.description-d-content strong{color:var(--text-primary)}.feature-list{display:grid;grid-template-columns:repeat(2,1fr);gap:15px;margin:20px 0}.feature-item{display:flex;align-items:center;gap:10px;padding:15px;background:rgba(255,0,80,.05);border-radius:var(--btn-radius);border:1px solid rgba(255,0,80,.1)}.feature-icon{color:var(--success);font-size:1.2rem}.security-notice{background:linear-gradient(135deg,rgba(255,0,80,.05),rgba(0,194,255,.05));padding:20px;border-radius:var(--card-radius);margin-top:30px;display:flex;align-items:center;gap:15px;border:1px solid var(--border)}.security-icon{font-size:1.5rem;color:var(--primary)}.security-text{flex:1;color:var(--text-primary);font-size:.95rem;line-height:1.6}.related-products{margin-bottom:80px}.section-title{font-size:1.8rem;font-weight:800;margin-bottom:15px;text-align:center;color:var(--text-primary);display:flex;align-items:center;justify-content:center;gap:10px}.section-title i{color:var(--primary)}.section-subtitle{font-size:1.1rem;color:var(--text-secondary);text-align:center;margin-bottom:40px;max-width:600px;margin-left:auto;margin-right:auto}.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:25px}.product-card{background:var(--card-bg);border-radius:var(--card-radius);padding:25px;box-shadow:var(--shadow);transition:var(--transition);border:1px solid var(--border);display:flex;flex-direction:column}.product-card:hover{box-shadow:var(--shadow-hover)}.product-card-title{font-size:1.2rem;font-weight:700;margin-bottom:15px;color:var(--text-primary);flex-grow:0;display:flex;align-items:center;gap:8px}.product-card-title i{color:var(--primary)}.product-card-description{color:var(--text-secondary);margin-bottom:15px;font-size:.95rem;line-height:1.6;flex-grow:1}.product-card-price{color:var(--price-red);font-weight:800;font-size:1.4rem;margin-bottom:15px;flex-grow:0;display:flex;align-items:center;gap:5px}.product-card-price i{color:var(--price-red)}.product-card-action{flex-grow:0}.modal-overlay{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.7);z-index:2000;opacity:0;transition:opacity .3s ease}.modal-overlay.active{display:flex;align-items:center;justify-content:center;opacity:1}.modal-content{background:#fff;border-radius:20px;max-width:900px;width:90%;max-height:90vh;overflow-y:auto;transform:scale(.9);transition:transform .3s ease;box-shadow:0 20px 60px rgba(0,0,0,.3)}.modal-overlay.active .modal-content{transform:scale(1)}.modal-header{padding:25px 30px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}.modal-title{font-weight:700;color:var(--text-primary);gap:10px;font-size:24px;display:flex;align-items:center}.modal-title i{color:var(--primary)}.close-btn{font-size:24px;width:40px;height:40px;border:none;background:var(--light);border-radius:50%;cursor:pointer;justify-content:center;color:var(--gray);transition:all .3s;display:flex}.close-btn:hover{background:#e0e0e0;color:var(--dark);transform:rotate(90deg)}.modal-body{padding:30px;display:grid;grid-template-columns:repeat(2,1fr);gap:30px}.order-summary{background:var(--light);padding:25px;border-radius:15px;border:1px solid var(--border)}.summary-title{font-size:18px;font-weight:700;color:var(--text-primary);margin-bottom:20px;gap:8px;display:flex;align-items:center}.summary-title i{color:var(--primary)}.summary-row{display:flex;align-items:center;justify-content:space-between;padding:10px 0;border-bottom:1px solid var(--border)}.summary-row-clear-bt{border-bottom:none}.summary-row:last-child{border-bottom:none;padding-top:15px;margin-top:5px;border-top:2px solid var(--border)}.summary-label{width:60px;color:var(--text-secondary);font-size:14px}.summary-value{font-weight:600;color:var(--text-primary)}.summary-value.total{font-size:24px;color:var(--price-red)}.payment-title{font-size:16px;font-weight:700;color:var(--text-primary);margin-bottom:15px;display:flex;align-items:center;gap:8px}.payment-title i{color:var(--primary)}.selected-payment{background:rgba(40,167,69,.1);border:2px solid var(--success);padding:15px;border-radius:10px;display:flex;align-items:center;gap:15px;margin-bottom:20px}.selected-payment .payment-icon{font-size:2rem;color:var(--success)}.qr-section{text-align:center;padding:20px}.qr-code{width:200px;height:200px;margin:0 auto 15px;background:#fff;padding:10px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:14px;color:#999;border:1px solid var(--border)}.address-section{background:#fff;border:2px solid var(--border);border-radius:10px;padding:15px;margin-bottom:15px;position:relative}.address-label{font-size:13px;color:var(--text-secondary);margin-bottom:8px;display:flex;align-items:center;gap:5px}.address-label i{color:var(--primary)}.address-value{font-size:14px;word-break:break-all;color:var(--text-primary);line-height:1.4;padding-right:40px;width:85%}.copy-btn{position:absolute;right:10px;top:50%;transform:translateY(-50%);background:var(--success);color:#fff;border:none;padding:8px 15px;border-radius:6px;font-size:13px;cursor:pointer;transition:all .3s;display:flex;align-items:center;gap:5px}.copy-btn:hover{background:#05a050}.copy-btn.copied{background:#4caf50}.btn-confirm{background:linear-gradient(135deg,var(--success),#05a050);color:#fff;padding:15px 25px;border:none;border-radius:var(--btn-radius);font-size:1rem;cursor:pointer;transition:var(--transition);font-weight:700;width:100%;display:flex;align-items:center;justify-content:center;gap:8px;box-shadow:0 4px 12px rgba(40,167,69,.2)}.btn-confirm:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 20px rgba(7,193,96,.4)}.btn-confirm:disabled{opacity:.6;cursor:not-allowed}.countdown-section{background:linear-gradient(135deg,rgba(255,0,80,.1),rgba(255,0,80,.05));padding:10px;border-radius:12px;margin-bottom:25px;text-align:center;border:1px solid rgba(255,0,80,.2)}.countdown-title{font-size:14px;color:var(--primary);font-weight:600;display:flex;align-items:center;justify-content:center;gap:5px}.countdown-title i{color:var(--primary)}.countdown-timer{font-size:30px;font-weight:800;color:var(--primary);font-family:Courier New,monospace;letter-spacing:2px}.countdown-timer.warning{animation:blink 1s ease-in-out infinite}@keyframes blink{0%,50%{opacity:1}51%,to{opacity:.3}}.countdown-hint{font-size:12px;color:var(--text-secondary)}@media (max-width:1024px){.product-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:768px){.product-d-detail{grid-template-columns:1fr;gap:30px;padding:30px}.product-d-title{font-size:1.6rem}.product-d-price{font-size:2rem}.feature-list{grid-template-columns:1fr}.action-buttons{flex-direction:column}.modal-body{grid-template-columns:1fr;gap:20px}.product-grid{grid-template-columns:1fr}}@media (max-width:480px){.product-d-title{font-size:1.4rem}.product-d-price{font-size:1.8rem}.spec-d-label{flex:0 0 120px;font-size:.9rem}.spec-d-value{font-size:.9rem}.description-d-title{font-size:1.3rem}.modal-content{width:95%;max-height:95vh;margin:10px}.modal-header{padding:20px}.modal-title{font-size:20px}.modal-body{padding:20px}.qr-code{width:160px;height:160px}.address-value{font-size:12px}.payment-method{min-width:calc(50% - 4px)}}