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ul{flex-direction:column;gap:20px}.hero h1{font-size:2rem}.hero p{max-width:100%;font-size:1.1rem}.features-grid{grid-template-columns:1fr 1fr}.product-grid{grid-template-columns:1fr}.filter-buttons{flex-wrap:nowrap;overflow-x:auto;padding-bottom:12px;-webkit-overflow-scrolling:touch}.filter-btn{flex-shrink:0}}@media (max-width:480px){.features-grid{grid-template-columns:1fr}}*{margin:0;padding:0;box-sizing:border-box;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif}body{background:#f8fafc;color:#0f172a;line-height:1.5}.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}.breadcrumb{margin:30px 0;font-size:.9rem;color:#475569}.breadcrumb a{color:#0056d2;text-decoration:none;transition:all .2s ease}.breadcrumb a:hover{text-decoration:underline}.breadcrumb span{margin:0 8px;color:#94a3b8}.product-d-detail{background:#fff;border-radius:24px;padding:30px;box-shadow:0 8px 28px rgba(0,0,0,.02);border:1px solid 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rgba(0,86,210,.08)}.product-card-title{font-size:1.2rem;font-weight:600;margin-bottom:15px;color:#0f172a;flex-grow:0;display:flex;align-items:center;gap:8px}.product-card-description{color:#475569;margin-bottom:15px;font-size:.95rem;line-height:1.6;flex-grow:1}.product-card-price{color:#0056d2;font-weight:600;font-size:1.3rem;margin-bottom:15px;flex-grow:0}.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:24px;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 #e2e8f0;display:flex;align-items:center;justify-content:space-between}.modal-title{font-weight:600;color:#0f172a;gap:10px;font-size:24px;display:flex;align-items:center}.close-btn{font-size:24px;width:40px;height:40px;border:none;background:#f8fafc;border-radius:50%;cursor:pointer;justify-content:center;color:#64748b;transition:all .3s;display:flex;align-items:center}.close-btn:hover{background:#e2e8f0;color:#0f172a;transform:rotate(90deg)}.modal-body{padding:30px;display:grid;grid-template-columns:repeat(2,1fr);gap:30px}.order-summary{background:#f8fafc;padding:25px;border-radius:24px}.summary-title{font-size:18px;font-weight:600;color:#0f172a;margin-bottom:20px;gap:8px;display:flex;align-items:center}.summary-row{display:flex;align-items:center;justify-content:space-between;padding:10px 0;border-bottom:1px solid rgba(0,0,0,.08)}.summary-row-clear-bt{border-bottom:none}.summary-row:last-child{border-bottom:none;padding-top:15px;margin-top:5px;border-top:2px solid rgba(0,0,0,.1)}.summary-label{width:120px;color:#475569;font-size:14px}.summary-value{font-weight:600;color:#0f172a}.summary-value.total{font-size:24px;color:#0056d2}.payment-title{font-size:16px;font-weight:600;color:#0f172a;margin-bottom:15px;display:flex;align-items:center;gap:8px}.selected-payment{background:#eef2ff;border:2px solid #0056d2;padding:15px;border-radius:50px;display:flex;align-items:center;gap:15px;margin-bottom:20px}.selected-payment .payment-icon{font-size:2rem;color:#0056d2}.qr-section{text-align:center;padding:20px;margin-bottom:20px}.qr-code{width:200px;height:200px;margin:0 auto 15px;background:#fff;padding:10px;border-radius:24px;display:flex;align-items:center;justify-content:center;font-size:14px;color:#94a3b8;border:1px solid #e2e8f0}.address-section{background:#fff;border:2px solid #e2e8f0;border-radius:12px;padding:15px;margin-bottom:15px;position:relative}.address-label{font-size:13px;color:#475569;margin-bottom:8px;display:flex;align-items:center;gap:5px}.address-value{font-size:14px;word-break:break-all;color:#0f172a;line-height:1.4;padding-right:40px;width:85%}.copy-btn{position:absolute;right:10px;top:50%;transform:translateY(-50%);background:#0056d2;color:#fff;border:none;padding:8px 15px;border-radius:50px;font-size:13px;cursor:pointer;transition:all .3s;display:flex;align-items:center;gap:5px}.copy-btn:hover{background:#0041a0}.copy-btn.copied{background:#22c55e}.btn-confirm{background:#0056d2;color:#fff;padding:15px 25px;border:none;border-radius:50px;font-size:1rem;cursor:pointer;transition:all .2s ease;font-weight:600;width:100%;display:flex;align-items:center;justify-content:center;gap:8px;box-shadow:0 8px 16px rgba(0,86,210,.25)}.btn-confirm:hover:not(:disabled){background:#0041a0;box-shadow:0 20px 30px 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1);pointer-events:auto;position:relative}.toast.show{transform:translateX(0);opacity:1}.toast.success{background:#22c55e;color:#fff}.toast.error{background:#ef4444;color:#fff}.toast.warning{background:#eef2ff;color:#0f172a;border-left:4px solid #0056d2}.toast.info{background:#eef2ff;color:#0f172a}.toast.info .toast-icon{color:#0056d2}.toast-icon{margin-right:12px;flex-shrink:0}.toast-content{flex:1}.toast-title{font-weight:600;font-size:14px;margin-bottom:2px;color:inherit}.toast-message{font-size:13px;line-height:1.4;color:inherit}.toast-close{position:absolute;top:8px;right:8px;background:0 0;border:none;font-size:18px;color:inherit;cursor:pointer;padding:4px;line-height:1;opacity:.7;transition:opacity .2s}.toast-close:hover{opacity:1}.toast-progress{position:absolute;bottom:0;left:0;height:3px;background:rgba(0,0,0,.1);border-radius:0 0 24px 24px;transform-origin:left;animation:progress linear}.toast.success .toast-progress{background:#22c55e}.toast.error .toast-progress{background:#ef4444}.toast.warning .toast-progress{background:#0056d2}.toast.info .toast-progress{background:#0056d2}@keyframes blink{0%,50%{opacity:1}51%,to{opacity:.3}}@keyframes progress{0%{transform:scaleX(1)}to{transform:scaleX(0)}}@media (max-width:1024px){.product-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:768px){.breadcrumb{margin:20px 0}.product-d-detail{grid-template-columns:1fr;gap:20px}.feature-list{grid-template-columns:1fr}.action-buttons{flex-direction:column}.payment-methods{display:grid;grid-template-columns:repeat(2,1fr)}.payment-method{min-width:auto}.modal-body{grid-template-columns:1fr;gap:20px}.product-grid{grid-template-columns:1fr}}@media (max-width:480px){.product-d-title{font-size:1.5rem}.product-d-price{font-size:1.8rem}.spec-label{flex:0 0 120px;font-size:.9rem}.spec-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}.address-value{font-size:12px}}