*{margin:0;padding:0;box-sizing:border-box;font-family:'Segoe UI','Microsoft YaHei',sans-serif}:root{--primary-blue:#1a73e8;--hover-blue:#0d47a1;--light-blue:#f0f7ff;--bg-color:#f8f9fa;--card-bg:#ffffff;--text-primary:#333333;--text-secondary:#555555;--border-color:#dee2e6;--price-red:#d32f2f;--success-green:#388e3c;--transition:all 0.3s ease;--card-radius:10px;--btn-radius:6px;--shadow:0 5px 15px rgba(0, 0, 0, 0.05);--shadow-hover:0 12px 20px rgba(0, 0, 0, 0.1);--bs-card-spacer-y:30px;--bs-card-spacer-x:30px;--bs-card-title-spacer-y:0.5rem;--bs-card-title-color:#1a237e;--bs-card-subtitle-color:#555;--bs-card-border-width:0px;--bs-card-border-color:#dee2e6;--bs-card-border-radius:10px;--bs-card-box-shadow:0 5px 15px rgba(0, 0, 0, 0.05);--bs-card-inner-border-radius:10px;--bs-card-cap-padding-y:15px;--bs-card-cap-padding-x:30px;--bs-card-cap-bg:rgba(26, 115, 232, 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#ddd;border-radius:30px;cursor:pointer;font-weight:600;transition:all .3s;white-space:nowrap}.filter-btn:hover{border-color:#1a73e8;color:#1a73e8}.filter-btn.active{background-color:#1a73e8;color:#fff;border-color:#1a73e8}.auto-delivery{background-color:#e8f5e9;padding:15px;margin-bottom:30px;text-align:center}.auto-delivery h3{color:#2e7d32;margin-bottom:8px}.product-list{padding:20px 0 50px}.product-list h2{font-size:28px;margin-bottom:20px;color:#1a237e}.product-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:25px}.product-card{background-color:#fff;border-radius:10px;overflow:hidden;box-shadow:0 5px 15px rgba(0,0,0,.05);transition:transform .3s,box-shadow .3s;display:flex;flex-direction:column}.product-card:hover{box-shadow:0 12px 20px rgba(0,0,0,.1)}.card-header{padding:20px;background:linear-gradient(135deg,#1a73e8 0,#0d47a1 100%);color:#fff}.product-type{display:inline-block;padding:4px 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0}.copyright{text-align:center;color:#b0b0b0;font-size:14px}.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)}}.breadcrumb{padding:15px 0;background-color:#f5f5f5;border-bottom:1px solid #eee}.breadcrumb-list{display:flex;list-style:none}.breadcrumb-item{margin-right:10px;font-size:14px}.breadcrumb-item:not(:last-child)::after{content:">";margin-left:10px;color:#888}.breadcrumb-item a{color:#1a73e8;text-decoration:none}.breadcrumb-item a:hover{text-decoration:underline}.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}.breadcrumb{font-size:.9rem;color:var(--text-secondary);background-color:#f5f5f5;padding:15px 0;border-bottom:1px solid #eee}.breadcrumb a{color:var(--primary-blue);text-decoration:none;transition:var(--transition)}.breadcrumb a:hover{text-decoration:underline}.breadcrumb span{margin:0 8px}.ks-product-detail{background:var(--card-bg);border-radius:var(--card-radius);padding:var(--bs-card-spacer-y) var(--bs-card-spacer-x);box-shadow:var(--shadow);border:var(--bs-card-border-width) solid var(--bs-card-border-color);margin-bottom:60px;display:grid;grid-template-columns:1fr 1fr;gap:40px}.ks-product-info,.purchase-options{border:none}.ks-product-title{font-size:1.8rem;font-weight:700;margin-bottom:15px;color:var(--bs-card-title-color)}.ks-product-price{font-size:2.2rem;font-weight:700;color:var(--price-red);margin-bottom:25px}.product-specs{margin-bottom:25px}.spec-row{display:flex;padding:12px 0;border-bottom:1px solid var(--border-color)}.spec-row:last-child{border-bottom:none}.spec-label{flex:0 0 140px;color:var(--text-secondary);font-weight:500;display:flex;align-items:center;gap:8px}.spec-value{flex:1;font-weight:600;color:var(--text-primary)}.spec-value.highlight{color:var(--success-green)}.option-title{font-size:1.3rem;font-weight:600;margin-bottom:25px;color:var(--bs-card-title-color)}.form-group{margin-bottom:25px}.form-label{display:block;margin-bottom:10px;color:var(--text-secondary);font-weight:500;font-size:.95rem}.required{color:var(--price-red)}.email-input{width:100%;padding:12px 15px;border:2px solid #ddd;border-radius:var(--btn-radius);font-size:1rem;transition:var(--transition)}.email-input:focus{outline:0;border-color:var(--primary-blue);box-shadow:0 0 0 3px rgba(26,115,232,.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 #ddd;overflow:hidden;transition:var(--transition);max-width:150px}.quantity-selector:focus-within{border-color:var(--primary-blue);box-shadow:0 0 0 3px rgba(26,115,232,.1)}.quantity-btn{width:40px;height:40px;line-height:40px;border:none;background:var(--light-blue);color:var(--text-primary);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1rem;transition:var(--transition)}.quantity-btn:hover{background:rgba(26,115,232,.1)}.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 #ddd;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-blue);background:var(--light-blue)}.payment-method input[type=radio]{display:none}.payment-icon{margin-bottom:5px}.payment-icon img{border-radius:48px}.total-price{background:linear-gradient(135deg,#1a73e8 0,#0d47a1 100%);padding:15px;border-radius:var(--card-radius);margin-bottom:25px;display:flex;justify-content:space-between;align-items:center}.total-label{font-size:1rem;color:#fff;font-weight:500}.total-amount{font-size:1.8rem;font-weight:700;color:#fff}.action-buttons{display:flex;gap:15px}.btn{padding:15px 25px;border:none;border-radius:var(--btn-radius);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:linear-gradient(135deg,var(--primary-blue),var(--hover-blue));color:#fff}.btn-primary:hover{box-shadow:var(--shadow-hover);background:linear-gradient(135deg,#0d47a1,#1a73e8)}.btn-primary:disabled{opacity:.6;cursor:not-allowed;transform:none}.btn-secondary{background:linear-gradient(135deg,#f5f7fa,#e9ecef);color:var(--text-primary)}.btn-secondary:hover{background:linear-gradient(135deg,#e9ecef,#dee2e6)}.ks-product-description{grid-column:1/-1;margin-top:20px}.ks-description-title{font-size:1.5rem;margin-bottom:25px;color:var(--bs-card-title-color);display:flex;align-items:center;gap:10px}.ks-description-content{line-height:1.8;color:var(--text-secondary)}.ks-description-content p{margin-bottom:20px;font-size:1.05rem;line-height:1.8}.ks-description-content ol,.ks-description-content ul{margin:20px 0;padding-left:25px}.ks-description-content li{margin-bottom:10px;line-height:1.6}.ks-description-content h3{font-size:1.3rem;color:var(--bs-card-title-color);margin:25px 0 15px;font-weight:600;display:flex;align-items:center;gap:10px}.ks-description-content strong{color:var(--text-primary)}.related-products{margin-bottom:80px}.section-title{font-size:1.8rem;font-weight:700;margin-bottom:15px;text-align:center;color:var(--bs-card-title-color)}.section-subtitle{font-size:1.1rem;color:var(--text-secondary);text-align:center;margin-bottom:30px;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(--card-bg);border-radius:var(--card-radius);padding:var(--bs-card-spacer-y) var(--bs-card-spacer-x);box-shadow:var(--shadow);transition:var(--transition);border:var(--bs-card-border-width) solid var(--bs-card-border-color);display:flex;flex-direction:column}.ks-product-card:hover{box-shadow:var(--shadow-hover)}.ks-product-card-title{font-size:1.2rem;font-weight:600;margin-bottom:15px;color:var(--text-primary);flex-grow:0;display:flex;align-items:center;gap:8px}.ks-product-card-description{color:var(--text-secondary);margin-bottom:15px;font-size:.95rem;line-height:1.6;flex-grow:1}.ks-product-card-price{color:var(--price-red);font-weight:600;font-size:1.3rem;margin-bottom:15px;flex-grow:0}.ks-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 #e0e0e0;display:flex;align-items:center;justify-content:space-between;background:linear-gradient(135deg,#1a73e8 0,#0d47a1 100%);color:#fff;border-radius:20px 20px 0 0}.modal-title{font-weight:600;color:#fff;gap:10px;font-size:24px;display:flex;align-items:center}.close-btn{font-size:24px;width:40px;height:40px;border:none;background:rgba(255,255,255,.2);border-radius:50%;cursor:pointer;justify-content:center;color:#fff;transition:all .3s;display:flex}.close-btn:hover{background:rgba(255,255,255,.3);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(--bs-card-title-color);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(--bs-card-title-color);margin-bottom:15px;display:flex;align-items:center;gap:8px}.selected-payment{background:#e8f5e9;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:87%}.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:#2e7d32}.copy-btn.copied{background:#4caf50}.btn-confirm{background:linear-gradient(135deg,var(--success-green),#2e7d32);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(56,142,60,.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}@media (max-width:1024px){.product-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:768px){.ks-product-detail{grid-template-columns:1fr;gap:20px}.action-buttons{flex-direction:column}.payment-methods{display:grid;grid-template-columns:repeat(3,1fr)}.payment-method{min-width:auto}.modal-body{grid-template-columns:1fr;gap:20px}.product-grid{grid-template-columns:1fr}}@media (max-width:480px){.ks-product-title{font-size:1.5rem}.ks-product-price{font-size:1.8rem}.spec-label{flex:0 0 120px;font-size:.9rem}.spec-value{font-size:.9rem}.ks-description-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}}