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0;margin-top:30px}.section-title{font-size:2.2rem;font-weight:700;text-align:center;margin-bottom:50px;color:#121212}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:30px}.feature-card{background:#fff;padding:40px 24px 30px;border-radius:32px;text-align:center;box-shadow:0 20px 35px -10px rgba(0,0,0,.05);transition:all .3s ease;border:1px solid rgba(100,116,139,.08)}.feature-card:hover{transform:translateY(-10px);box-shadow:0 30px 45px -12px rgba(254,44,85,.15)}.feature-icon{font-size:3.2rem;margin-bottom:20px;display:inline-block;background:linear-gradient(145deg,#f9fafb,#fff);padding:16px;border-radius:60px;box-shadow:inset 0 0 0 1px rgba(0,0,0,.02)}.feature-card h3{font-size:1.5rem;margin-bottom:12px;color:#121212}.feature-card p{color:#64748b;font-size:1rem}.faq-section{padding:60px 0}.faq-grid{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:16px}.faq-item{background:#fff;border-radius:28px;overflow:hidden;box-shadow:0 6px 18px rgba(0,0,0,.02);border:1px solid rgba(100,116,139,.1)}.faq-question{background:#fff;padding:22px 28px;font-size:1.2rem;font-weight:600;color:#121212;cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:background .2s}.faq-question .icon{font-size:1.8rem;color:#fe2c55;transition:transform .3s ease}.faq-item.active .faq-question .icon{transform:rotate(45deg)}.faq-answer{padding:0 28px 22px;color:#54656f;line-height:1.7;display:none}.faq-item.active .faq-answer{display:block}.site-footer{background:#121212;color:#94a3b8;padding:30px 0;text-align:center;border-radius:40px 40px 0 0;margin-top:50px}.footer-copyright{font-size:.95rem}@keyframes gradientShift{0%{background-position:0 50%}50%{background-position:100% 50%}100%{background-position:0 50%}}@media (max-width:768px){.hamburger{display:flex}.main-nav{position:fixed;top:70px;left:0;width:100%;background:rgba(255,255,255,.98);backdrop-filter:blur(10px);padding:20px;box-shadow:0 10px 30px 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h1{font-size:2.2rem}}:root{--primary-cyan:#25f4ee;--primary-pink:#fe2c55;--primary-purple:#8a3ffc;--bg-light:#f2f4f8;--bg-white:#ffffff;--text-dark:#121212;--text-body:#54656f;--text-light:#64748b;--white:#ffffff;--shadow-sm:0 10px 30px -5px rgba(18, 18, 18, 0.05);--shadow-md:0 20px 40px -12px rgba(254, 44, 85, 0.15);--shadow-lg:0 30px 60px -12px rgba(138, 63, 252, 0.2);--border-radius-card:32px;--border-radius-btn:60px;--border-radius-sm:20px;--transition:all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94)}.container{max-width:1280px;margin:0 auto;padding:0 24px;width:100%}.breadcrumb{margin:30px 0;font-size:.95rem;color:var(--text-light)}.breadcrumb a{color:var(--primary-pink);text-decoration:none;font-weight:500;transition:var(--transition);background:rgba(254,44,85,.08);padding:4px 16px;border-radius:40px;border:1px solid rgba(254,44,85,.15)}.breadcrumb a:hover{background:var(--primary-pink);color:#fff;transform:translateY(-2px)}.breadcrumb span{margin:0 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i{color:var(--primary-purple);font-size:1.1rem}.spec-value{flex:1;font-weight:600;color:var(--text-dark)}.spec-value.highlight{color:#10b981;display:inline-block}.option-title{font-size:1.6rem;font-weight:700;margin-bottom:30px;color:var(--text-dark);display:flex;align-items:center;gap:12px}.option-title i{color:var(--primary-cyan);background:linear-gradient(145deg,var(--primary-cyan),var(--primary-pink));-webkit-background-clip:text;background-clip:text;color:transparent}.form-group{margin-bottom:30px}.form-label{display:block;margin-bottom:12px;color:var(--text-body);font-weight:600;font-size:1rem;letter-spacing:-.01em}.required{color:var(--primary-pink)}.email-input{width:100%;padding:16px 20px;border:2px solid rgba(100,116,139,.15);border-radius:var(--border-radius-btn);font-size:1rem;transition:var(--transition);background:var(--bg-white);color:var(--text-dark)}.email-input:focus{outline:0;border-color:var(--primary-cyan);box-shadow:0 0 0 6px 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.payment-text{font-size:.85rem;font-weight:600;color:var(--text-dark)}.total-price{background:linear-gradient(135deg,rgba(37,244,238,.1),rgba(254,44,85,.1));padding:24px;border-radius:var(--border-radius-sm);margin-bottom:30px;display:flex;justify-content:space-between;align-items:center;border:1px solid rgba(138,63,252,.2)}.total-label{font-size:1.1rem;color:var(--text-dark);font-weight:600;display:flex;align-items:center;gap:10px}.total-label i{color:var(--primary-purple)}.total-amount{font-size:2.2rem;font-weight:800;color:var(--primary-pink);line-height:1}.action-buttons{display:flex;gap:15px}.btn{padding:16px 28px;border:none;border-radius:var(--border-radius-btn);font-size:1.1rem;cursor:pointer;transition:var(--transition);font-weight:700;flex:1;text-align:center;text-decoration:none;display:inline-block;letter-spacing:-.01em}.btn-primary{background:linear-gradient(135deg,var(--primary-cyan),var(--primary-pink),var(--primary-purple));color:#fff;background-size:200% 200%;animation:gradientShift 6s ease infinite;box-shadow:0 10px 25px -5px rgba(254,44,85,.4)}.btn-primary:hover{box-shadow:0 20px 35px -8px rgba(254,44,85,.6)}.btn-primary:disabled{opacity:.5;transform:none;box-shadow:none}@keyframes gradientShift{0%{background-position:0 50%}50%{background-position:100% 50%}100%{background-position:0 50%}}.product-d-description{grid-column:1/-1;margin-top:40px}.description-d-title{font-size:1.8rem;font-weight:700;margin-bottom:30px;color:var(--text-dark);display:flex;align-items:center;gap:12px}.description-d-title i{color:var(--primary-cyan);background:linear-gradient(145deg,var(--primary-cyan),var(--primary-pink));-webkit-background-clip:text;background-clip:text;color:transparent}.description-d-content{line-height:1.8;color:var(--text-body)}.description-d-content p{margin-bottom:20px;font-size:1.05rem}.description-d-content ol,.description-d-content ul{margin:20px 0;padding-left:25px}.description-d-content li{margin-bottom:10px}.description-d-content h3{font-size:1.4rem;color:var(--text-dark);margin:30px 0 15px;font-weight:700}.description-d-content strong{color:var(--text-dark)}.feature-list{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin:20px 0}.feature-item{display:flex;align-items:center;gap:12px;padding:18px;background:linear-gradient(145deg,var(--bg-light),#fff);border-radius:var(--border-radius-sm);border:1px solid rgba(100,116,139,.05)}.feature-icon{color:#10b981;font-size:1.3rem}.security-notice{background:linear-gradient(135deg,rgba(37,244,238,.1),rgba(138,63,252,.1));padding:24px;border-radius:var(--border-radius-sm);margin-top:30px;display:flex;align-items:center;gap:15px;border:1px solid rgba(138,63,252,.2)}.security-icon{font-size:2rem;color:var(--primary-purple)}.security-text{flex:1;color:var(--text-dark);font-size:.95rem;line-height:1.6}.related-products{margin-bottom:100px}.section-title i{background:linear-gradient(135deg,var(--primary-cyan),var(--primary-pink),var(--primary-purple));-webkit-background-clip:text;background-clip:text;color:transparent;margin-right:10px}.section-subtitle{font-size:1.2rem;color:var(--text-light);text-align:center;margin-bottom:50px;max-width:600px;margin-left:auto;margin-right:auto}.ks-product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:25px}.ks-product-card{background:var(--bg-white);border-radius:var(--border-radius-card);padding:30px;box-shadow:var(--shadow-sm);transition:var(--transition);border:1px solid rgba(100,116,139,.08);display:flex;flex-direction:column;position:relative;overflow:hidden}.ks-product-card::before{content:'';position:absolute;top:-50%;right:-50%;width:200px;height:200px;background:radial-gradient(circle,rgba(254,44,85,.05),transparent);border-radius:50%;transition:var(--transition)}.ks-product-card:hover{box-shadow:var(--shadow-lg)}.ks-product-card:hover::before{transform:scale(1.2)}.ks-product-card-title{font-size:1.4rem;font-weight:700;margin-bottom:15px;color:var(--text-dark);position:relative;z-index:1}.ks-product-card-description{color:var(--text-body);margin-bottom:20px;font-size:.95rem;line-height:1.6;flex-grow:1;position:relative;z-index:1}.ks-product-card-price{color:var(--primary-pink);font-weight:800;font-size:1.8rem;margin-bottom:20px;position:relative;z-index:1;display:flex;align-items:center;gap:4px}.ks-product-card-price::before{content:'$';font-size:1.2rem;color:var(--text-light);font-weight:400}.ks-product-card-action{position:relative;z-index:1}.ks-product-card-action .btn{padding:14px 20px;font-size:1rem}.toast-container{position:fixed;top:20px;right:20px;z-index:9999;pointer-events:none}.toast{background:#fff;border-radius:24px;box-shadow:var(--shadow-md);padding:16px 24px;margin-bottom:10px;min-width:320px;max-width:400px;display:flex;align-items:center;transform:translateX(100%);opacity:0;transition:var(--transition);pointer-events:auto;position:relative;border-left:6px solid}.toast.show{transform:translateX(0);opacity:1}.toast.success{border-left-color:#10b981;background:linear-gradient(145deg,#f0fdf4,#fff)}.toast.error{border-left-color:var(--primary-pink);background:linear-gradient(145deg,#fef2f2,#fff)}.toast.warning{border-left-color:#f59e0b;background:linear-gradient(145deg,#fffbeb,#fff)}.toast.info{border-left-color:var(--primary-cyan);background:linear-gradient(145deg,#eff6ff,#fff)}.toast-icon{margin-right:15px;flex-shrink:0}.toast.success .toast-icon{color:#10b981}.toast.error .toast-icon{color:var(--primary-pink)}.toast.warning .toast-icon{color:#f59e0b}.toast.info .toast-icon{color:var(--primary-cyan)}.toast-content{flex:1}.toast-title{font-weight:700;font-size:1rem;margin-bottom:4px;color:var(--text-dark)}.toast-message{font-size:.9rem;color:var(--text-body);line-height:1.4}.toast-close{position:absolute;top:10px;right:10px;background:0 0;border:none;font-size:1.2rem;color:var(--text-light);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:4px;background:rgba(0,0,0,.05);border-radius:0 0 24px 24px;transform-origin:left;animation:progress linear}.toast.success .toast-progress{background:#10b981}.toast.error .toast-progress{background:var(--primary-pink)}.toast.warning .toast-progress{background:#f59e0b}.toast.info .toast-progress{background:var(--primary-cyan)}@keyframes progress{0%{transform:scaleX(1)}to{transform:scaleX(0)}}.modal-overlay{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(18,18,18,.8);backdrop-filter:blur(8px);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:var(--bg-white);border-radius:var(--border-radius-card);max-width:1000px;width:90%;max-height:90vh;overflow-y:auto;transform:scale(.9);transition:transform .3s ease;box-shadow:var(--shadow-lg);border:1px solid rgba(100,116,139,.1)}.modal-overlay.active .modal-content{transform:scale(1)}.modal-header{padding:30px 35px;border-bottom:1px solid rgba(100,116,139,.1);display:flex;align-items:center;justify-content:space-between}.modal-title{font-weight:800;color:var(--text-dark);gap:12px;font-size:1.8rem;display:flex;align-items:center}.modal-title i{color:var(--primary-purple)}.close-btn{font-size:1.5rem;width:48px;height:48px;border:none;background:var(--bg-light);border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;color:var(--text-body);transition:var(--transition)}.close-btn:hover{background:var(--primary-pink);color:#fff;transform:rotate(90deg)}.modal-body{padding:15px;display:grid;grid-template-columns:repeat(2,1fr);gap:40px}.order-summary{background:linear-gradient(145deg,var(--bg-light),#fff);padding:15px;border-radius:var(--border-radius-sm);border:1px solid rgba(100,116,139,.05)}.summary-title{font-size:1.3rem;font-weight:700;color:var(--text-dark);margin-bottom:25px;gap:10px;display:flex;align-items:center}.summary-title i{color:var(--primary-cyan)}.summary-row{display:flex;align-items:center;justify-content:space-between;padding:12px 0;border-bottom:1px solid rgba(100,116,139,.1)}.summary-row:last-child{border-bottom:none;padding-top:20px;margin-top:10px}.summary-label{color:var(--text-light);font-size:.95rem}.summary-value{font-weight:700;color:var(--text-dark)}.summary-value.total{font-size:1.8rem;color:var(--primary-pink)}.payment-title{font-size:1.2rem;font-weight:600;color:var(--text-dark);margin-bottom:20px;display:flex;align-items:center;gap:10px}.selected-payment{background:linear-gradient(145deg,#f0fdf4,#fff);border:2px solid #10b981;padding:20px;border-radius:var(--border-radius-sm);display:flex;align-items:center;gap:15px;margin-bottom:25px}.selected-payment .payment-icon{font-size:2.5rem;color:#10b981}.qr-section{text-align:center;padding:25px;margin-bottom:25px}.qr-code{width:220px;height:220px;margin:0 auto 20px;background:#fff;padding:15px;border-radius:24px;display:flex;align-items:center;justify-content:center;border:1px solid rgba(100,116,139,.1);box-shadow:var(--shadow-sm)}.address-section{background:var(--bg-white);border:2px solid rgba(100,116,139,.1);border-radius:var(--border-radius-sm);padding:20px;margin-bottom:20px;position:relative}.address-label{font-size:.9rem;color:var(--text-light);margin-bottom:8px;display:flex;align-items:center;gap:5px}.address-value{font-size:.95rem;word-break:break-all;color:var(--text-dark);line-height:1.5;padding-right:80px;width:93%}.copy-btn{position:absolute;right:15px;top:50%;transform:translateY(-50%);background:#10b981;color:#fff;border:none;padding:10px 18px;border-radius:40px;font-size:.9rem;cursor:pointer;transition:var(--transition);display:flex;align-items:center;gap:6px;font-weight:600}.copy-btn:hover{background:#059669;transform:translateY(-50%) scale(1.05)}.btn-confirm{background:linear-gradient(135deg,#10b981,#059669);color:#fff;padding:18px 28px;border:none;border-radius:var(--border-radius-btn);font-size:1.1rem;cursor:pointer;transition:var(--transition);font-weight:700;width:100%;display:flex;align-items:center;justify-content:center;gap:10px}.btn-confirm:hover:not(:disabled){transform:translateY(-4px);box-shadow:0 20px 30px -10px rgba(16,185,129,.5)}.btn-confirm:disabled{opacity:.5;cursor:not-allowed}.countdown-section{background:linear-gradient(135deg,rgba(254,44,85,.1),rgba(138,63,252,.1));padding:15px;border-radius:var(--border-radius-sm);margin-bottom:30px;text-align:center;border:1px solid rgba(254,44,85,.2)}.countdown-title{font-size:1rem;color:var(--primary-pink);margin-bottom:12px;font-weight:700;display:flex;align-items:center;justify-content:center;gap:8px}.countdown-timer{font-size:3rem;font-weight:800;color:var(--primary-pink);font-family:'Courier New',monospace;letter-spacing:4px}.countdown-timer.warning{animation:blink 1s ease-in-out infinite}@keyframes blink{0%,50%{opacity:1}51%,to{opacity:.3}}.countdown-hint{font-size:.85rem;color:var(--text-light);margin-top:10px}@media (max-width:1024px){.ks-product-grid{grid-template-columns:repeat(2,1fr)}.product-d-detail{gap:30px;padding:30px}}@media (max-width:768px){.breadcrumb{margin:20px 0}.product-d-detail{grid-template-columns:1fr;gap:30px;padding:25px}.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:30px}.ks-product-grid{grid-template-columns:1fr}.product-d-title{font-size:1.8rem}.product-d-price{font-size:2.2rem}}@media (max-width:480px){.product-d-detail{padding:20px}.spec-label{flex:0 0 110px;font-size:.85rem}.spec-value{font-size:.85rem}.description-d-title{font-size:1.4rem}.modal-content{width:95%;margin:10px}.modal-header{padding:20px}.modal-title{font-size:1.4rem}.modal-body{padding:20px}.address-value{font-size:.85rem;padding-right:70px}}