*{margin:0;padding:0;box-sizing:border-box}body{font-family:system-ui,-apple-system,'Segoe UI',Roboto,'Helvetica Neue',sans-serif;background-color:#f7f9fc;color:#263a4d;line-height:1.6}a{text-decoration:none}.container{max-width:1280px;margin:0 auto;padding:0 24px}.site-header{background-color:#fff;border-bottom:1px solid #e5ecf3;box-shadow:0 5px 18px rgba(104,120,138,.04);position:sticky;top:0;z-index:100}.header-container{display:flex;justify-content:space-between;align-items:center;height:80px}.logo-area a{font-size:26px;font-weight:700;color:#0b1b2c;letter-spacing:-.02em}.nav-list{display:flex;gap:32px;list-style:none}.nav-list a{text-decoration:none;color:#1e2d3c;font-weight:500;font-size:17px;transition:color .2s}.nav-list a:hover{color:#003457}.mobile-menu-toggle{display:none;flex-direction:column;gap:6px;background:0 0;border:none;cursor:pointer;padding:8px}.bar{width:28px;height:2px;background-color:#1d3447;border-radius:4px}.hero{background-color:#f5f9ff;border-radius:28px;padding:60px 48px;margin:40px 0;text-align:center;border:1px solid #e5ecf3;box-shadow:0 5px 18px rgba(104,120,138,.06)}.hero h1{font-size:42px;font-weight:700;color:#0b1b2c;line-height:1.3;margin-bottom:20px}.hero p{font-size:18px;color:#5e6f84}.filter-bar{display:flex;flex-wrap:wrap;gap:12px;margin:32px 0 24px;align-items:center}.filter-btn{background-color:#f2f6fc;border:1px solid #e0eaf3;border-radius:40px;padding:10px 24px;font-size:16px;color:#1f3b54;font-weight:500;cursor:pointer;transition:all .15s}.filter-btn.active,.filter-btn:hover{background-color:#1d3447;color:#fff;border-color:#1d3447}.product-section{background-color:#fff;border-radius:28px;padding:40px;border:1px solid #e5ecf3;margin:40px 0}.product-table{width:100%;border-collapse:collapse}.product-table th{text-align:left;padding:16px 12px;color:#62778b;font-weight:500;font-size:15px;border-bottom:2px solid #e5ecf3}.product-table td{padding:16px 12px;border-bottom:1px solid #f0f4fa;color:#1e2d3c}.product-title .product-desc{max-width:800px;font-size:13px;font-weight:400;color:#8d8d8d;margin-top:10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.product-title{font-weight:600;color:#0b1b2c}.stock{color:#2b4f6e;background-color:#e9f0f9;border-radius:40px;padding:4px 12px;font-size:13px;display:inline-block}.price{font-weight:700;color:#003457;font-size:18px}.buy-link{background-color:#1d3447;color:#fff;text-decoration:none;border-radius:40px;padding:8px 20px;font-size:14px;font-weight:500;display:inline-block;border:1px solid #0b1b2c;transition:background .2s}.buy-link:hover{background-color:#0b1b2c}.why-us{background-color:#f2f6fc;border-radius:28px;padding:60px 40px;margin:40px 0;border:1px solid #e5ecf3}.section-title{font-size:32px;color:#0b1b2c;margin-bottom:40px}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:30px}.feature-card{background-color:#fff;border-radius:24px;padding:32px 24px;border:1px solid #e5ecf3;box-shadow:0 5px 18px rgba(104,120,138,.04)}.feature-icon{font-size:36px;margin-bottom:20px}.feature-card h3{font-size:22px;color:#1d3447;margin-bottom:12px}.feature-card p{color:#5e6f84}.faq{background-color:#fff;border-radius:28px;padding:60px 40px;margin:40px 0;border:1px solid #e5ecf3}.faq-item{border-bottom:1px solid #e5ecf3}.faq-question{background:0 0;border:none;width:100%;text-align:left;padding:24px 0;font-size:18px;font-weight:600;color:#1d3447;cursor:pointer;display:flex;justify-content:space-between;align-items:center}.faq-question .icon{font-size:24px;color:#a1b7cc}.faq-answer{max-height:0;overflow:hidden;transition:max-height .3s ease;padding:0 20px 0 0;color:#62778b}.faq-answer.show{max-height:200px;padding-bottom:24px}.site-footer{background-color:#0b1b2c;color:#b0c5d9;padding:32px 0;margin-top:60px;text-align:center;border-top:1px solid #1d3447}@media (max-width:768px){.mobile-menu-toggle{display:flex}.main-nav{position:fixed;top:80px;left:0;right:0;background:#fff;border-bottom:1px solid #e5ecf3;padding:20px;transform:translateY(-150%);opacity:0;transition:.3s;pointer-events:none}.main-nav.open{transform:translateY(0);opacity:1;pointer-events:auto}.nav-list{flex-direction:column;gap:20px}.filter-bar{justify-content:center}.hero h1{font-size:32px}.hero{padding:40px 24px}.product-section{box-shadow:unset;background:unset;border-radius:0;padding:0;border:0}.product-table thead{display:none}.product-table,.product-table tbody,.product-table td,.product-table tr{display:block;width:100%!important;min-width:auto!important}.product-table tr{background:#fff;margin-bottom:20px;position:relative;border-radius:28px;overflow:hidden}.product-table td{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;border-radius:0!important;box-shadow:none;border-bottom:1px solid #f0f2f5}.product-table td:first-child::before{content:'';width:0}.product-title .product-desc{display:none}.product-table td::before{content:attr(data-label);font-weight:600;color:#64748b;width:40%;font-size:.9rem}.product-table td:last-child{border-bottom:0}.buy-link{padding:6px 12px}}:root{--primary-dark:#1d3447;--primary-darker:#0b1b2c;--primary-medium:#2b4f6e;--primary-light:#3a5d7e;--bg-white:#ffffff;--bg-light:#f2f6fc;--bg-lighter:#f7f9fc;--bg-subtle:#f5f9ff;--border-light:#e5ecf3;--border-lighter:#e0eaf3;--text-primary:#1e2d3c;--text-secondary:#263a4d;--text-helper:#5e6f84;--text-soft:#62778b;--accent-ice:#a1b7cc;--accent-light:#b0c5d9;--accent-emphasis:#003457;--radius-container:28px;--radius-card:24px;--radius-inner:18px;--radius-tag:12px;--radius-button:40px;--radius-small:12px;--shadow-subtle:0 5px 18px rgba(104, 120, 138, 0.08);--shadow-hover:0 8px 25px rgba(104, 120, 138, 0.12);--transition:all 0.25s ease;--primary-blue:var(--primary-dark);--hover-blue:var(--primary-darker);--light-blue:var(--bg-light);--bg-color:var(--bg-lighter);--card-bg:var(--bg-white);--text-primary:var(--text-primary);--text-secondary:var(--text-helper);--border-color:var(--border-light);--price-red:var(--accent-emphasis);--success-green:var(--primary-medium);--transition:var(--transition);--card-radius:var(--radius-card);--btn-radius:var(--radius-button);--shadow:var(--shadow-subtle);--shadow-hover:var(--shadow-hover);--bs-card-spacer-y:30px;--bs-card-spacer-x:30px;--bs-card-title-spacer-y:0.5rem;--bs-card-title-color:var(--primary-darker);--bs-card-subtitle-color:var(--text-soft);--bs-card-border-width:1px;--bs-card-border-color:var(--border-light);--bs-card-border-radius:var(--radius-card);--bs-card-box-shadow:var(--shadow-subtle);--bs-card-inner-border-radius:var(--radius-inner);--bs-card-cap-padding-y:15px;--bs-card-cap-padding-x:30px;--bs-card-cap-bg:var(--bg-light);--bs-card-bg:var(--bg-white);--bs-card-img-overlay-padding:1rem;--bs-card-group-margin:12px}body{background-color:var(--bg-lighter);color:var(--text-secondary);font-family:system-ui,-apple-system,'Segoe 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1fr;gap:40px}.product-d-info,.purchase-options{border:none}.product-d-title{font-size:2rem;font-weight:700;margin-bottom:15px;color:var(--primary-darker);letter-spacing:-.02em}.product-d-price{font-size:2.4rem;font-weight:700;color:var(--accent-emphasis);margin-bottom:25px}.product-d-specs{margin-bottom:25px;background-color:var(--bg-subtle);border-radius:var(--radius-inner);padding:10px 20px;border:1px solid var(--border-lighter)}.spec-row{display:flex;padding:14px 0;border-bottom:1px solid var(--border-light)}.spec-row:last-child{border-bottom:none}.spec-label{flex:0 0 140px;color:var(--text-soft);font-weight:500;display:flex;align-items:center;gap:8px}.spec-label i{color:var(--accent-ice);width:20px}.spec-value{flex:1;font-weight:600;color:var(--text-primary)}.spec-value.highlight{color:var(--primary-medium)}.option-title{font-size:1.5rem;font-weight:600;margin-bottom:25px;color:var(--primary-darker);display:flex;align-items:center;gap:10px}.option-title i{color:var(--primary-medium)}.form-group{margin-bottom:25px}.form-label{display:block;margin-bottom:10px;color:var(--text-primary);font-weight:500;font-size:.95rem}.required{color:var(--accent-emphasis)}.email-input{width:100%;padding:14px 18px;border:1px solid var(--border-light);border-radius:var(--radius-button);font-size:1rem;transition:var(--transition);background-color:var(--bg-white);color:var(--text-primary)}.email-input:focus{outline:0;border-color:var(--primary-dark);box-shadow:0 0 0 3px rgba(29,52,71,.08)}.email-hint{margin-top:8px;font-size:.85rem;color:var(--text-soft);display:flex;align-items:center;gap:5px}.quantity-selector{display:flex;align-items:center;background:var(--bg-white);border-radius:var(--radius-button);border:1px solid var(--border-light);overflow:hidden;transition:var(--transition);max-width:150px}.quantity-selector:focus-within{border-color:var(--primary-dark);box-shadow:0 0 0 3px rgba(29,52,71,.08)}.quantity-btn{width:44px;height:44px;line-height:44px;border:none;background:var(--bg-subtle);color:var(--primary-dark);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1rem;transition:var(--transition)}.quantity-btn:hover{background:var(--bg-light)}.quantity-btn:disabled{opacity:.5;cursor:not-allowed}.quantity-input{flex:1;height:44px;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:12px;font-weight:600}.payment-methods{display:flex;gap:8px;flex-wrap:wrap}.payment-method{flex:1;padding:12px 8px;border:1px solid var(--border-light);border-radius:var(--radius-tag);background:var(--bg-white);cursor:pointer;transition:var(--transition);text-align:center;font-size:.85rem;font-weight:600;color:var(--text-primary)}.payment-method.selected,.payment-method:hover{border-color:var(--primary-dark);background:var(--bg-light);box-shadow:var(--shadow-subtle)}.payment-method input[type=radio]{display:none}.payment-icon{margin-bottom:5px}.payment-icon>img{border-radius:10px;filter:grayscale(10%)}.total-price{background-color:var(--bg-subtle);border:1px solid var(--border-lighter);padding:18px 20px;border-radius:var(--radius-inner);margin-bottom:25px;display:flex;justify-content:space-between;align-items:center}.total-label{font-size:1rem;color:var(--text-soft);font-weight:500}.total-label i{color:var(--accent-ice);margin-right:6px}.total-amount{font-size:2rem;font-weight:700;color:var(--accent-emphasis)}.action-buttons{display:flex;gap:15px}.btn{padding:16px 28px;border:none;border-radius:var(--radius-button);font-size:1rem;cursor:pointer;transition:var(--transition);font-weight:600;flex:1;text-align:center;text-decoration:none;display:inline-block}.btn-primary{background-color:var(--primary-dark);color:#fff;border:1px solid var(--primary-darker)}.btn-primary:hover{background-color:var(--primary-darker);box-shadow:var(--shadow-hover)}.btn-primary:disabled{opacity:.6;cursor:not-allowed;transform:none}.btn-secondary{background-color:transparent;border:1px solid var(--border-light);color:var(--primary-dark)}.btn-secondary:hover{background-color:var(--bg-light);border-color:var(--primary-medium)}.product-d-description{grid-column:1/-1;margin-top:20px}.description-d-title{font-size:1.6rem;margin-bottom:25px;color:var(--primary-darker);display:flex;align-items:center;gap:10px;font-weight:600}.description-d-title i{color:var(--primary-medium)}.description-d-content{line-height:1.8;color:var(--text-secondary);background-color:var(--bg-subtle);padding:30px;border-radius:var(--radius-inner);border:1px solid var(--border-lighter)}.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}.description-d-content h3{font-size:1.3rem;color:var(--primary-dark);margin:25px 0 15px;font-weight:600;display:flex;align-items:center;gap:10px}.description-d-content strong{color:var(--primary-darker)}.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:var(--bg-light);border-radius:var(--radius-tag);border:1px solid var(--border-lighter)}.feature-icon{color:var(--primary-medium);font-size:1.2rem}.security-notice{background-color:var(--bg-subtle);border:1px solid var(--border-light);padding:20px;border-radius:var(--radius-inner);margin-top:30px;display:flex;align-items:center;gap:15px}.security-icon{font-size:1.5rem;color:var(--primary-medium)}.security-text{flex:1;color:var(--text-soft);font-size:.95rem;line-height:1.6}.related-products{margin-bottom:80px}.section-title{font-size:2rem;font-weight:700;margin-bottom:15px;text-align:center;color:var(--primary-darker)}.section-subtitle{font-size:1.1rem;color:var(--text-soft);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}.ks-product-card{background:var(--bg-white);border-radius:var(--radius-card);padding:28px;box-shadow:var(--shadow);transition:var(--transition);border:1px solid var(--border-color);display:flex;flex-direction:column}.ks-product-card:hover{box-shadow:var(--shadow-hover)}.ks-product-card-title{font-size:1.3rem;font-weight:600;margin-bottom:15px;color:var(--primary-darker);flex-grow:0;display:flex;align-items:center;gap:8px}.ks-product-card-description{color:var(--text-soft);margin-bottom:15px;font-size:.95rem;line-height:1.6;flex-grow:1}.ks-product-card-price{color:var(--accent-emphasis);font-weight:700;font-size:1.5rem;margin-bottom:20px;flex-grow:0}.ks-product-card-action .btn-primary{display:block;text-align:center;padding:12px;font-size:.95rem}.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 #e0e0e0;display:flex;align-items:center;justify-content:space-between}.modal-title{font-weight:600;color:var(--text-primary);gap:10px;font-size:24px;display:flex;align-items:center}.close-btn{font-size:24px;width:40px;height:40px;border:none;background:#f5f5f5;border-radius:50%;cursor:pointer;justify-content:center;color:#666;transition:all .3s;display:flex;align-items:center}.close-btn:hover{background:#e0e0e0;color:#333;transform:rotate(90deg)}.modal-body{padding:30px;display:grid;grid-template-columns:repeat(2,1fr);gap:30px}.order-summary{background:linear-gradient(135deg,#f8f9fa,#e9ecef);padding:25px;border-radius:15px}.summary-title{font-size:18px;font-weight:600;color:var(--text-primary);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: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:600;color:var(--text-primary);margin-bottom:15px;display:flex;align-items:center;gap:8px}.selected-payment{background:#f0fdf4;border:2px solid var(--success-green);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-green)}.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:10px;display:flex;align-items:center;justify-content:center;font-size:14px;color:#999;border:1px solid #e0e0e0}.address-section{background:#fff;border:2px solid #e0e0e0;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-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-green);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-green),#05a050);color:#fff;padding:15px 25px;border:none;border-radius:var(--btn-radius);font-size:1rem;cursor:pointer;transition:var(--transition);font-weight:600;width:100%;display:flex;align-items:center;justify-content:center;gap:8px}.btn-confirm:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 5px 15px rgba(7,193,96,.4)}.btn-confirm:disabled{opacity:.6;cursor:not-allowed}.countdown-section{background:linear-gradient(135deg,#fee2e2,#fecaca);padding:20px;border-radius:12px;margin-bottom:25px;text-align:center}.countdown-title{font-size:14px;color:#991b1b;margin-bottom:10px;font-weight:600;display:flex;align-items:center;justify-content:center;gap:5px}.countdown-timer{font-size:36px;font-weight:700;color:#dc2626;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:#7f1d1d;margin-top:8px}.toast-container{position:fixed;top:20px;right:20px;z-index:9999;pointer-events:none}.toast{background:#fff;color:#fff;border-radius:8px;box-shadow:0 4px 20px rgba(0,0,0,.15);padding:16px 20px;margin-bottom:10px;min-width:300px;max-width:400px;display:flex;align-items:center;transform:translateX(100%);opacity:0;transition:all .3s cubic-bezier(.4, 0, .2, 1);pointer-events:auto;position:relative}.toast.show{transform:translateX(0);opacity:1}.toast.success{background:#28a745}.toast.error{background:#ef4444}.toast.warning{border-left-color:#f59e0b;background:linear-gradient(135deg,#fffbeb,#fef3c7)}.toast.info{border-left-color:#3b82f6;background:linear-gradient(135deg,#eff6ff,#dbeafe)}.toast.info .toast-icon{color:#3b82f6}.toast-icon{margin-right:12px;flex-shrink:0}.toast-content{flex:1}.toast-title{font-weight:600;font-size:14px;margin-bottom:2px;color:#374151}.toast-message{font-size:13px;line-height:1.4}.toast-close{position:absolute;top:8px;right:8px;background:0 0;border:none;font-size:18px;color:#fff;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 8px 8px;transform-origin:left;animation:progress linear}.toast.success .toast-progress{background:#10b981}.toast.error .toast-progress{background:#ef4444}.toast.warning .toast-progress{background:#f59e0b}.toast.info .toast-progress{background:#3b82f6}@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;padding:24px}.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}.product-grid{grid-template-columns:1fr}.modal-body{grid-template-columns:1fr;gap:20px}}@media (max-width:480px){.product-d-title{font-size:1.6rem}.product-d-price{font-size:2rem}.spec-label{flex:0 0 110px;font-size:.9rem}.spec-value{font-size:.9rem}.description-d-title{font-size:1.4rem}.description-d-content{padding:20px}.total-amount{font-size:1.8rem}.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}}