:root{--primary:#ff5722;--primary-dark:#e64a19;--primary-light:#ff7043;--gradient:linear-gradient(135deg, #ff5722 0%, #ff9800 100%);--dark:#0a0a0a;--darker:#050505;--card-bg:#141414;--border:#2a2a2a;--text:#ffffff;--text-secondary:#b0b0b0;--glass:rgba(255, 255, 255, 0.05);--shadow:0 10px 30px rgba(0, 0, 0, 0.3);--transition:all 0.3s cubic-bezier(0.4, 0, 0.2, 1)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:'PingFang SC','Microsoft YaHei',Roboto,sans-serif;background:linear-gradient(135deg,#0a0a0a 0,#141414 100%);color:var(--text);line-height:1.6;overflow-x:hidden}.container{max-width:1400px;margin:0 auto;padding:0 24px}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--darker)}::-webkit-scrollbar-thumb{background:var(--primary);border-radius:10px}::-webkit-scrollbar-thumb:hover{background:var(--primary-dark)}.header{position:sticky;top:0;z-index:1000;background:rgba(10,10,10,.95);backdrop-filter:blur(20px);border-bottom:1px solid var(--border);padding:20px 0}.header-container{display:flex;justify-content:space-between;align-items:center;padding:16px 24px}.logo{display:flex;align-items:center;gap:12px;font-size:24px;font-weight:700;text-decoration:none;color:var(--text)}.gradient-text{background:var(--gradient);-webkit-background-clip:text;background-clip:text;color:transparent}.nav-list{display:flex;gap:32px;list-style:none}.nav-list a{text-decoration:none;color:var(--text-secondary);transition:var(--transition);font-weight:500}.nav-list a:hover{color:var(--primary)}.hamburger{display:none;flex-direction:column;gap:6px;background:0 0;border:none;cursor:pointer;padding:8px}.hamburger span{width:28px;height:2px;background:var(--text);transition:var(--transition)}.hero{display:flex;align-items:center;padding:80px 0;position:relative;overflow:hidden}.hero-content{flex:1}.hero-badge{display:inline-block;padding:8px 20px;background:var(--glass);border-radius:50px;font-size:14px;margin-bottom:24px;backdrop-filter:blur(10px)}.hero h1{font-size:56px;margin-bottom:24px;line-height:1.2}.hero p{font-size:18px;color:var(--text-secondary);margin-bottom:32px}.hero-stats{display:flex;gap:48px;margin-top:48px}.stat{text-align:center}.stat-number{font-size:36px;font-weight:700;color:var(--primary)}.stat-label{font-size:14px;color:var(--text-secondary)}.after-sales-section,.faq-section,.features-section,.guarantee-section,.process-section,.products-section,.why-section{padding:80px 0}.section-header{text-align:center;margin-bottom:56px}.section-header h2{font-size:40px;margin-bottom:16px}.section-header p{color:var(--text-secondary);font-size:18px}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:32px}.feature-card{background:var(--card-bg);border:1px solid var(--border);border-radius:24px;padding:32px;transition:var(--transition);text-align:center}.feature-card:hover{transform:translateY(-8px);border-color:var(--primary);box-shadow:var(--shadow)}.feature-card i{font-size:48px;color:var(--primary);margin-bottom:20px}.feature-card h3{font-size:22px;margin-bottom:12px}.feature-card p{color:var(--text-secondary)}.filter-bar{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:48px;justify-content:center}.filter-btn{padding:12px 28px;background:var(--card-bg);border:1px solid var(--border);border-radius:48px;color:var(--text);cursor:pointer;transition:var(--transition);font-size:16px}.filter-btn.active,.filter-btn:hover{background:var(--primary);border-color:var(--primary);transform:translateY(-2px)}.product-table{overflow-x:auto;background:var(--card-bg);border-radius:24px;border:1px solid var(--border)}.product-title{font-weight:700}.product-table small{color:var(--text-secondary)}.product-table 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24px;max-height:0;overflow:hidden;transition:max-height .3s ease-out;color:var(--text-secondary);border-top:0 solid var(--border)}.faq-item.active .faq-answer{max-height:300px;padding:24px;border-top-width:1px}.footer{background:var(--darker);border-top:1px solid var(--border);padding:32px 0;text-align:center;color:var(--text-secondary)}.footer a{color:var(--text-secondary)}@media (max-width:768px){.nav-menu{display:none}.hamburger{display:flex}.nav-menu.active{display:block;position:absolute;top:100%;left:0;right:0;background:rgba(10,10,10,.98);backdrop-filter:blur(20px);padding:20px}.nav-list{flex-direction:column;align-items:center;gap:20px}.hero{flex-direction:column;text-align:center;padding:40px 0}.hero h1{font-size:36px}.hero-stats{justify-content:center}.section-header h2{font-size:32px}.product-table td,.product-table th{padding:12px;font-size:14px}}@media (max-width:480px){.container{padding:0 16px}.filter-btn{padding:8px 20px;font-size:14px}}:root{--primary:#fe2c55;--primary-dark:#e8254a;--primary-light:#ff4d6d;--primary-gradient:linear-gradient(135deg, #fe2c55 0%, #ff8a3c 100%);--bg-primary:#0f0f0f;--bg-secondary:#1a1a1a;--bg-card:#181818;--bg-elevated:#202020;--text-primary:#ffffff;--text-secondary:#b0b0b0;--text-muted:#6c6c6c;--border-color:#2a2a2a;--border-light:#333333;--success:#22c55e;--warning:#f59e0b;--error:#ef4444;--glass-bg:rgba(255, 255, 255, 0.05);--glass-border:rgba(255, 255, 255, 0.1);--transition:all 0.3s cubic-bezier(0.4, 0, 0.2, 1);--card-radius:16px;--btn-radius:48px;--shadow-sm:0 4px 6px rgba(0, 0, 0, 0.3);--shadow-md:0 10px 30px rgba(0, 0, 0, 0.4);--shadow-lg:0 20px 40px rgba(0, 0, 0, 0.5);--shadow-hover:0 20px 40px rgba(254, 44, 85, 0.15)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:'PingFang SC','Microsoft YaHei',Roboto,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.6;overflow-x:hidden}.container{max-width:1400px;margin:0 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var(--border-color);border-radius:12px;background:var(--bg-elevated);cursor:pointer;transition:var(--transition);text-align:center;font-size:.85rem;font-weight:600;color:var(--text-secondary)}.payment-method.selected,.payment-method:hover{border-color:var(--primary);background:rgba(254,44,85,.1);transform:translateY(-2px);color:var(--primary)}.payment-method input[type=radio]{display:none}.payment-icon{margin-bottom:8px}.payment-icon>img{border-radius:10px}.total-price{background:var(--primary-gradient);padding:20px;border-radius:12px;margin-bottom:25px;display:flex;justify-content:space-between;align-items:center}.total-label{font-size:1rem;color:rgba(255,255,255,.9);font-weight:500;display:flex;align-items:center;gap:8px}.total-amount{font-size:2rem;font-weight:700;color:#fff}.action-buttons{display:flex;gap:15px}.btn{padding:16px 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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-primary);margin:25px 0 15px;font-weight:600;display:flex;align-items:center;gap:10px}.description-d-content strong{color:var(--text-primary)}.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(--glass-bg);border-radius:12px;border:1px solid var(--border-color)}.feature-icon{color:var(--success);font-size:1.2rem}.security-notice{background:rgba(34,197,94,.1);padding:20px;border-radius:12px;margin-top:30px;display:flex;align-items:center;gap:15px;border:1px solid rgba(34,197,94,.2)}.security-icon{font-size:1.5rem;color:var(--success)}.security-text{flex:1;color:var(--success);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;background:var(--primary-gradient);-webkit-background-clip:text;background-clip:text;color:transparent}.section-subtitle{font-size:1.1rem;color:var(--text-secondary);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:30px}.ks-product-card{background:var(--bg-card);border-radius:var(--card-radius);padding:28px;box-shadow:var(--shadow-sm);transition:var(--transition);border:1px solid var(--border-color);display:flex;flex-direction:column}.ks-product-card:hover{border-color:var(--primary);box-shadow:var(--shadow-hover)}.ks-product-card-title{font-size:1.25rem;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:.9rem;line-height:1.6;flex-grow:1}.ks-product-card-price{color:var(--primary);font-weight:700;font-size:1.5rem;margin-bottom:20px;flex-grow:0}.ks-product-card-action{flex-grow:0}.ks-product-card-action .btn{padding:12px 24px;font-size:.9rem;display:inline-block;width:100%}.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:#000;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:#000;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:#333}.summary-value.total{font-size:24px;color:var(--primary)}.payment-title{font-size:16px;font-weight:600;color:#333;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:#333;line-height:1.4;padding-right:40px;width:85%}.copy-btn{position:absolute;right:10px;top:50%;transform:translateY(-50%);background:#05a050;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.copied{background:#05a050}.btn-confirm{background:#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){.container{padding:0 16px}.breadcrumb{margin:20px 0}.product-d-detail{grid-template-columns:1fr;gap:30px;padding:24px}.product-d-title{font-size:1.5rem}.product-d-price{font-size:2rem}.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;gap:20px}.section-title{font-size:1.5rem}.product-table{background:0 0;border-radius:0;border:0}.product-table thead{display:none}.product-table,.product-table tbody,.product-table td,.product-table tr{display:block;width:100%}.product-table tr{margin-bottom:20px;position:relative;border-radius:28px;border:1px solid var(--border);background:var(--bg-elevated);overflow:hidden}.product-table td{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;border-radius:0!important;box-shadow:none}.product-table td:first-child::before{content:'';width:0}.product-table td::before{content:attr(data-label);font-weight:600;color:#64748b;width:40%;font-size:.9rem}.product-table td:first-child>small{display:none}.product-title{font-size:1rem}.product-table td:last-child{border-bottom:none}.hero-stats{gap:1rem}.modal-body{grid-template-columns:1fr;gap:20px}}@media (max-width:480px){.product-d-title{font-size:1.3rem}.product-d-price{font-size:1.6rem}.spec-label{flex:0 0 100px;font-size:.85rem}.spec-value{font-size:.85rem}.description-d-title{font-size:1.3rem}.option-title{font-size:1.2rem}.total-amount{font-size:1.5rem}.ks-product-card{padding:20px}.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}}