:root{--primary:#fe2c55;--primary-light:rgba(254, 44, 85, 0.1);--bg-white:#ffffff;--border-light:#eef0f2;--border-medium:#ebedef;--border-hover:#f0f2f5;--text-main:#1f1f1f;--text-secondary:#8a8f99;--text-tertiary:#6c727e;--bg-hover:#f5f6f7;--bg-search:#f8f9fc;--bg-card:#fafbfc;--icon-default:#5a5e6a;--icon-light:#9aa0a8;--radius-sm:8px;--radius-md:12px;--radius-lg:20px;--radius-xl:24px;--radius-pill:40px;--shadow-sm:0 4px 14px rgba(0, 0, 0, 0.02),0 0 0 1px #f0f2f5;--shadow-md:0 12px 28px rgba(0, 0, 0, 0.05),0 0 0 1px #e6e9ed;--shadow-focus:0 0 0 2px rgba(254, 44, 85, 0.1);--font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-family);color:var(--text-main);background:var(--bg-white);line-height:1.5;scroll-behavior:smooth}.container{max-width:1280px;margin:0 auto;padding:0 24px}.site-header{background:var(--bg-white);border-bottom:1px solid var(--border-light);position:sticky;top:0;z-index:1000;backdrop-filter:blur(10px);background:rgba(255,255,255,.95)}.header-inner{display:flex;justify-content:space-between;align-items:center;height:70px}.logo a{display:flex;align-items:center;gap:10px;text-decoration:none;font-size:28px;font-weight:700;color:var(--primary)}.nav-list{display:flex;gap:32px;list-style:none}.nav-link{text-decoration:none;color:var(--text-main);font-weight:500;transition:color .2s;font-size:15px}.nav-link:hover{color:var(--primary)}.mobile-menu-toggle{display:none;background:0 0;border:none;font-size:24px;color:var(--text-main);cursor:pointer}.hero{background:linear-gradient(135deg,#fff 0,#fafbfc 100%);padding:80px 0 60px;border-bottom:1px solid var(--border-light)}.hero-inner{max-width:800px;margin:0 auto;text-align:center}.hero h1{font-size:48px;font-weight:700;margin-bottom:20px;background:linear-gradient(135deg,var(--text-main) 0,var(--primary) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero p{font-size:18px;color:var(--text-secondary);line-height:1.6;margin-bottom:30px}.hero-stats{display:flex;justify-content:center;gap:48px;margin-top:40px}.stat-item{text-align:center}.stat-number{font-size:32px;font-weight:700;color:var(--primary)}.stat-label{font-size:14px;color:var(--text-tertiary);margin-top:5px}.filter-bar{background:var(--bg-white);padding:30px 0;border-bottom:1px solid var(--border-light)}.filter-tabs{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}.filter-btn{padding:10px 24px;background:var(--bg-search);border:1px solid var(--border-light);border-radius:var(--radius-pill);color:var(--text-secondary);font-weight:500;cursor:pointer;transition:all .2s;font-size:14px}.filter-btn:hover{background:var(--bg-hover);border-color:var(--border-medium)}.filter-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}.products-section{padding:60px 0;background:var(--bg-white)}.section-title{font-size:32px;font-weight:700;text-align:center;margin-bottom:48px;color:var(--text-main)}.products-table-wrapper{overflow-x:auto;border-radius:var(--radius-lg);border:1px solid var(--border-light);background:var(--bg-white)}.products-table{width:100%;border-collapse:collapse}.products-table th{background:var(--bg-search);padding:16px 20px;text-align:left;font-weight:600;color:var(--text-main);border-bottom:1px solid var(--border-light);font-size:14px}.products-table td{padding:16px 20px;border-bottom:1px solid var(--border-light);color:var(--text-secondary)}.products-table tr:hover{background:var(--bg-hover)}.products-table .product-title{font-weight:600;color:var(--text-main);margin-bottom:4px;font-size:15px}.products-table .product-stock{font-size:12px;color:#10b981}.products-table .product-price{font-weight:700;color:var(--primary)!important;font-size:18px}.products-table 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0;background:var(--bg-white)}.process-steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:30px;margin-top:40px}.step-item{text-align:center}.step-number{width:60px;height:60px;background:var(--primary-light);color:var(--primary);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:700;margin:0 auto 20px}.step-item h3{font-size:18px;margin-bottom:10px}.step-item p{color:var(--text-secondary);font-size:14px}.guarantee-section{padding:60px 0;background:var(--bg-hover)}.guarantee-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:30px;margin-top:40px}.guarantee-item{text-align:center;padding:30px;background:var(--bg-white);border-radius:var(--radius-lg);border:1px solid var(--border-light)}.guarantee-item i{font-size:48px;color:var(--primary);margin-bottom:20px}.guarantee-item h3{font-size:18px;margin-bottom:10px}.guarantee-item p{color:var(--text-secondary);font-size:14px}.policy-section{padding:60px 0;background:var(--bg-white)}.policy-content{max-width:800px;margin:0 auto;background:var(--bg-hover);padding:40px;border-radius:var(--radius-lg)}.policy-content h3{font-size:20px;margin-bottom:15px;color:var(--text-main)}.policy-content p{margin-bottom:20px;color:var(--text-secondary);line-height:1.6}.faq-section{padding:60px 0;background:var(--bg-hover)}.faq-grid{max-width:800px;margin:0 auto}.faq-item{background:var(--bg-white);border:1px solid var(--border-light);border-radius:var(--radius-md);margin-bottom:16px;overflow:hidden}.faq-question{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;cursor:pointer;font-weight:600;color:var(--text-main);transition:background .2s}.faq-question i{color:var(--text-secondary);transition:transform .3s}.faq-item.active .faq-question i{transform:rotate(180deg)}.faq-answer{padding:0 24px;max-height:0;overflow:hidden;transition:max-height .3s ease-out;color:var(--text-secondary);line-height:1.6}.faq-item.active .faq-answer{padding:0 24px 20px;max-height:500px}.site-footer{background:var(--text-main);color:var(--text-secondary);padding:30px 0;text-align:center;border-top:1px solid var(--border-light)}.site-footer a{color:var(--text-secondary)}.footer-copyright{font-size:14px}@media (max-width:768px){.container{padding:0 16px}.hero h1{font-size:32px}.hero-stats{gap:24px}.stat-number{font-size:24px}.mobile-menu-toggle{display:block}.main-nav{position:fixed;top:70px;left:-100%;width:100%;height:calc(100vh - 70px);background:var(--bg-white);transition:left .3s;z-index:999}.main-nav.active{left:0}.nav-list{flex-direction:column;padding:20px;gap:16px}.nav-list li{width:100%}.nav-link{display:block;padding:12px;font-size:16px}.section-title{font-size:28px}.products-table td,.products-table th{padding:12px 16px}.product-price{font-size:16px}.buy-link{padding:6px 16px}}@media (max-width:480px){.hero h1{font-size:26px}.hero-stats{flex-wrap:wrap;gap:16px}.filter-btn{padding:8px 18px}.products-table{font-size:14px}}:root{--primary:#fe2c55;--primary-light:rgba(254, 44, 85, 0.1);--primary-gradient:linear-gradient(135deg, #fe2c55, #e8254a);--bg-white:#ffffff;--border-light:#eef0f2;--border-medium:#ebedef;--border-hover:#f0f2f5;--text-main:#1f1f1f;--text-secondary:#8a8f99;--text-tertiary:#6c727e;--bg-hover:#f5f6f7;--bg-search:#f8f9fc;--bg-card:#fafbfc;--icon-default:#5a5e6a;--icon-light:#9aa0a8;--radius-sm:8px;--radius-md:12px;--radius-lg:20px;--radius-xl:24px;--radius-pill:40px;--shadow-sm:0 4px 14px rgba(0, 0, 0, 0.02),0 0 0 1px #f0f2f5;--shadow-md:0 12px 28px rgba(0, 0, 0, 0.05),0 0 0 1px #e6e9ed;--shadow-focus:0 0 0 2px rgba(254, 44, 85, 0.1);--font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;--card-radius:var(--radius-lg);--btn-radius:var(--radius-pill);--price-red:#fe2c55;--success-green:#10b981;--transition:all 0.3s ease}body{font-family:var(--font-family);color:var(--text-main);background:var(--bg-white);line-height:1.5}.container{max-width:1280px;margin:0 auto;padding:0 24px}.breadcrumb{margin:30px 0;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(--bg-white);border-radius:var(--card-radius);padding:30px;box-shadow:var(--shadow-sm);border:1px solid var(--border-light);margin-bottom:60px;display:grid;grid-template-columns:1fr 1fr;gap:40px}.product-d-info,.purchase-options{border:none}.product-d-title{font-size:1.8rem;font-weight:700;margin-bottom:15px;color:var(--text-main)}.product-d-price{font-size:2.2rem;font-weight:700;color:var(--price-red);margin-bottom:25px}.product-d-specs{margin-bottom:25px}.spec-row{display:flex;padding:12px 0;border-bottom:1px solid var(--border-light)}.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-main)}.spec-value.highlight{color:var(--success-green)}.option-title{font-size:1.3rem;font-weight:600;margin-bottom:25px;color:var(--text-main)}.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:1px solid var(--border-light);border-radius:var(--radius-md);font-size:1rem;transition:var(--transition)}.email-input:focus{outline:0;border-color:var(--primary);box-shadow:var(--shadow-focus)}.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(--radius-md);border:1px solid var(--border-light);overflow:hidden;transition:var(--transition);max-width:150px}.quantity-selector:focus-within{border-color:var(--primary);box-shadow:var(--shadow-focus)}.quantity-btn{width:40px;height:40px;line-height:40px;border:none;background:var(--bg-search);color:var(--text-main);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1rem;transition:var(--transition)}.quantity-btn:hover{background:var(--primary-light)}.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-main);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-main);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:1px solid var(--border-light);border-radius:var(--radius-md);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(--primary-light)}.payment-method input[type=radio]{display:none}.payment-icon{margin-bottom:5px}.payment-icon>img{border-radius:10px}.total-price{background:var(--primary-light);padding:15px;border-radius:var(--radius-lg);margin-bottom:25px;display:flex;justify-content:space-between;align-items:center}.total-label{font-size:1rem;color:var(--primary);font-weight:500}.total-amount{font-size:1.8rem;font-weight:700;color:var(--primary)}.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:var(--primary-gradient);color:#fff}.btn-primary:hover{box-shadow:var(--shadow-md)}.btn-primary:disabled{opacity:.6;cursor:not-allowed;transform:none}.btn-secondary{background:linear-gradient(135deg,#f5f7fa,#e9ecef);color:var(--text-main)}.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-main);display:flex;align-items:center;gap:10px}.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}.description-d-content h3{font-size:1.3rem;color:var(--text-main);margin:25px 0 15px;font-weight:600;display:flex;align-items:center;gap:10px}.description-d-content strong{color:var(--text-main)}.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(--primary-light);border-radius:var(--radius-md)}.feature-icon{color:var(--success-green);font-size:1.2rem}.security-notice{background:linear-gradient(135deg,#e0f2fe,#bae6fd);padding:20px;border-radius:var(--radius-lg);margin-top:30px;display:flex;align-items:center;gap:15px}.security-icon{font-size:1.5rem;color:#0369a1}.security-text{flex:1;color:#0369a1;font-size:.95rem;line-height:1.6}.related-products{margin-bottom:80px}.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(--bg-white);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-sm);transition:var(--transition);border:1px solid var(--border-light);display:flex;flex-direction:column}.ks-product-card:hover{box-shadow:var(--shadow-md)}.ks-product-card-title{font-size:1.2rem;font-weight:600;margin-bottom:15px;color:var(--text-main);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}.modal-title{font-weight:600;color:var(--text-main);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}.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-main);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-main)}.summary-value.total{font-size:24px;color:var(--price-red)}.summary-value.total::after{font-size:18px;content:' USDT'}.payment-title{font-size:16px;font-weight:600;color:var(--text-main);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-main);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:var(--primary-gradient);color:#fff;padding:15px 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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 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}.products-table-wrapper{background:0 0;border-radius:0;border:0;box-shadow:unset}.products-table thead{display:none}.products-table,.products-table tbody,.products-table td,.products-table tr{display:block;width:100%}.products-table tr{margin-bottom:20px;position:relative;border-radius:28px;background:var(--bg-gray);border:1px solid var(--border-light);overflow:hidden}.products-table td{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;border-radius:0!important;box-shadow:none}.products-table td:first-child::before{content:'';width:0}.products-table td::before{content:attr(data-label);font-weight:400;color:#64748b;width:40%;font-size:.9rem}.products-table .product-desc{display:none}.products-table td:last-child{border-bottom:none}.products-table .product-title{font-size:16px}}@media (max-width:480px){.product-d-title{font-size:1.5rem}.product-d-price{font-size:1.8rem}.spec-label{flex:0 0 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