:root{--primary: #ff4d4f;--primary-dark: #e8393a;--primary-darker: #d9363e;--primary-light: #fff1f0;--primary-gradient: linear-gradient(135deg, #ff4d4f 0%, #ff6b3a 100%);--primary-gradient-hover: linear-gradient(135deg, #e8393a 0%, #e55520 100%);--secondary: #f093fb;--accent: #ffb800;--accent-light: #fff8e1;--success: #10b981;--success-light: #ecfdf5;--warning: #f59e0b;--warning-light: #fffbeb;--danger: #ef4444;--danger-light: #fef2f2;--info: #3b82f6;--info-light: #eff6ff;--bg: #f0f2f8;--bg-white: #ffffff;--bg-card: #ffffff;--text: #1e293b;--text-secondary: #64748b;--text-light: #94a3b8;--text-placeholder: #cbd5e1;--border: #e8ecf4;--border-light: #f1f5f9;--shadow-xs: 0 1px 2px rgba(0, 0, 0, .04);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .06);--shadow-md: 0 4px 16px rgba(0, 0, 0, .08);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .12);--shadow-xl: 0 16px 48px rgba(0, 0, 0, .16);--radius-sm: 8px;--radius: 12px;--radius-lg: 16px;--radius-xl: 20px;--radius-full: 9999px;--max-width: 1280px;--navbar-height: 64px;--transition: .25s cubic-bezier(.4, 0, .2, 1)}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Helvetica Neue,sans-serif;color:var(--text);background:var(--bg);line-height:1.6;min-height:100vh}a{text-decoration:none;color:inherit}img{max-width:100%;display:block}button{cursor:pointer;border:none;outline:none;font-family:inherit;transition:var(--transition)}input,select,textarea{font-family:inherit;outline:none;transition:var(--transition)}.container{max-width:var(--max-width);margin:0 auto;padding:0 24px}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--text-placeholder);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-light)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 24px;border-radius:var(--radius);font-size:14px;font-weight:600;letter-spacing:.01em;transition:all var(--transition);white-space:nowrap;position:relative;overflow:hidden}.btn:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:#fff3;opacity:0;transition:opacity var(--transition)}.btn:active:after{opacity:1}.btn-primary{background:var(--primary-gradient);color:#fff;box-shadow:0 2px 8px #ff4d4f4d}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 4px 16px #ff4d4f66}.btn-outline{background:#fff;color:var(--primary);border:2px solid 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a:hover{background:var(--primary-light);color:var(--primary)}.nav-mobile-overlay{display:none;position:fixed;top:0;right:0;bottom:0;left:0;top:var(--navbar-height);background:#0006;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);z-index:999;opacity:0;transition:opacity var(--transition)}.nav-mobile-overlay.active{display:block;opacity:1}.banner-carousel{position:relative;border-radius:var(--radius-lg);overflow:hidden;height:360px;margin:24px 0;background:var(--primary-gradient)}.banner-carousel .banner-slide{position:absolute;top:0;right:0;bottom:0;left:0;opacity:0;transition:opacity .6s ease;display:flex;align-items:center}.banner-carousel .banner-slide.active{opacity:1}.banner-content{padding:40px 60px;max-width:60%;z-index:2;color:#fff}.banner-content h2{font-size:36px;font-weight:800;margin-bottom:12px;line-height:1.3;text-shadow:0 2px 8px rgba(0,0,0,.2)}.banner-content p{font-size:16px;opacity:.9;margin-bottom:24px;line-height:1.6}.banner-content 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var(--transition);white-space:nowrap;flex-shrink:0}.category-nav a:hover,.category-nav button:hover{color:var(--primary);border-color:var(--primary);background:var(--primary-light)}.category-nav .active{background:var(--primary-gradient);color:#fff;border-color:transparent;box-shadow:0 2px 8px #ff4d4f4d}.section-header{display:flex;align-items:center;justify-content:space-between;padding:32px 0 20px}.section-title{font-size:22px;font-weight:700;color:var(--text);display:flex;align-items:center;gap:12px}.section-title:before{content:"";width:4px;height:24px;border-radius:2px;background:var(--primary-gradient)}.section-header a,.section-more{font-size:14px;color:var(--primary);font-weight:500;display:flex;align-items:center;gap:4px}.section-header a:hover{opacity:.8}.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.product-card{background:#fff;border-radius:var(--radius-lg);overflow:hidden;cursor:pointer;transition:all var(--transition);box-shadow:var(--shadow-xs);position:relative}.product-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}.product-card-image{width:100%;aspect-ratio:1;object-fit:cover;display:block;transition:transform .4s ease;background:var(--bg)}.product-card:hover .product-card-image{transform:scale(1.05)}.product-card-tags{position:absolute;top:10px;left:10px;display:flex;flex-direction:column;gap:4px;z-index:2}.product-tag{padding:3px 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.meta-row{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text-secondary)}.detail-meta .meta-label{color:var(--text-light);min-width:56px}.spec-group{margin-bottom:20px}.spec-group .spec-label{font-size:14px;font-weight:600;color:var(--text);margin-bottom:10px}.spec-options{display:flex;flex-wrap:wrap;gap:10px}.spec-option{padding:8px 20px;border-radius:var(--radius);font-size:13px;font-weight:500;background:#fff;border:2px solid var(--border);cursor:pointer;transition:all var(--transition)}.spec-option:hover{border-color:var(--primary)}.spec-option.active{background:var(--primary-light);border-color:var(--primary);color:var(--primary);font-weight:700}.quantity-selector{display:flex;align-items:center;gap:0;margin-bottom:24px}.quantity-selector button{width:40px;height:40px;border:2px solid var(--border);background:#fff;font-size:18px;font-weight:600;color:var(--text-secondary);transition:all var(--transition)}.quantity-selector button:first-child{border-radius:var(--radius) 0 0 var(--radius)}.quantity-selector button:last-child{border-radius:0 var(--radius) var(--radius) 0}.quantity-selector button:hover:not(:disabled){background:var(--primary-light);border-color:var(--primary);color:var(--primary)}.quantity-selector button:disabled{opacity:.3;cursor:not-allowed}.quantity-selector input{width:60px;height:40px;border:2px solid var(--border);border-left:none;border-right:none;text-align:center;font-size:16px;font-weight:600;color:var(--text)}.detail-actions{display:flex;gap:12px}.detail-actions .btn{flex:1;padding:14px 0;font-size:15px}.detail-actions .btn-buy{background:var(--primary-gradient);color:#fff;box-shadow:0 4px 16px #ff4d4f4d}.detail-actions .btn-cart{background:#fff;color:var(--primary);border:2px solid var(--primary)}.detail-actions .btn-fav{width:52px;flex:none;border-radius:var(--radius);font-size:22px;background:#fff;border:2px solid var(--border)}.detail-actions .btn-fav.active{border-color:var(--danger);color:var(--danger)}.detail-tabs{display:flex;gap:0;border-bottom:2px solid var(--border);margin-top:32px}.detail-tab{padding:14px 28px;font-size:15px;font-weight:500;color:var(--text-secondary);cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-2px;transition:all var(--transition)}.detail-tab:hover{color:var(--primary)}.detail-tab.active{color:var(--primary);border-bottom-color:var(--primary);font-weight:700}.detail-tab-content{padding:24px 0;line-height:1.8;color:var(--text-secondary)}.cart-layout{display:grid;grid-template-columns:1fr 360px;gap:24px;align-items:start}.cart-main{display:flex;flex-direction:column;gap:16px}.cart-item{display:grid;grid-template-columns:auto 100px 1fr auto auto auto;gap:16px;align-items:center;background:#fff;border-radius:var(--radius-lg);padding:16px 20px;box-shadow:var(--shadow-xs);transition:all var(--transition)}.cart-item:hover{box-shadow:var(--shadow-sm)}.cart-item input[type=checkbox]{width:18px;height:18px;accent-color:var(--primary);cursor:pointer}.cart-item .cart-item-img{width:90px;height:90px;border-radius:var(--radius);object-fit:cover;background:var(--bg)}.cart-item .cart-item-info{display:flex;flex-direction:column;gap:6px}.cart-item .cart-item-name{font-size:14px;font-weight:500;color:var(--text);line-height:1.4}.cart-item .cart-item-spec{font-size:12px;color:var(--text-light)}.cart-item .cart-item-price{font-size:16px;font-weight:700;color:var(--text)}.cart-item .cart-item-qty{display:flex;align-items:center;gap:0}.cart-item .cart-item-qty button{width:32px;height:32px;border:1.5px solid var(--border);background:#fff;font-size:16px;color:var(--text-secondary);transition:var(--transition)}.cart-item .cart-item-qty button:hover{background:var(--primary-light);border-color:var(--primary)}.cart-item .cart-item-qty span{width:48px;height:32px;display:flex;align-items:center;justify-content:center;border-top:1.5px solid var(--border);border-bottom:1.5px solid var(--border);font-size:14px;font-weight:600}.cart-item .cart-item-subtotal{font-size:16px;font-weight:700;background:var(--primary-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.cart-item .cart-item-delete{color:var(--text-light);background:none;font-size:18px;padding:4px}.cart-item .cart-item-delete:hover{color:var(--danger)}.cart-sidebar{position:sticky;top:calc(var(--navbar-height) + 24px);background:#fff;border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-md)}.cart-sidebar h4{font-size:16px;font-weight:700;color:var(--text);margin-bottom:20px;padding-bottom:16px;border-bottom:1px solid var(--border-light)}.cart-sidebar .summary-row{display:flex;justify-content:space-between;align-items:center;padding:8px 0;font-size:14px;color:var(--text-secondary)}.cart-sidebar .summary-total{display:flex;justify-content:space-between;align-items:baseline;padding:16px 0;margin-top:12px;border-top:2px solid var(--border)}.cart-sidebar .summary-total .total-label{font-size:16px;font-weight:700;color:var(--text)}.cart-sidebar .summary-total .total-amount{font-size:28px;font-weight:800;background:var(--primary-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.cart-sidebar .free-shipping-hint{padding:10px 14px;margin:12px 0;border-radius:var(--radius);background:var(--warning-light);color:var(--warning);font-size:12px;font-weight:500;display:flex;align-items:center;gap:6px}.cart-sidebar .free-shipping-hint.reached{background:var(--success-light);color:var(--success)}.select-all{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-secondary)}.select-all input[type=checkbox]{width:18px;height:18px;accent-color:var(--primary)}.order-page{display:grid;grid-template-columns:1fr 380px;gap:24px;padding:24px 0;align-items:start}.order-main{display:flex;flex-direction:column;gap:20px}.order-section{background:#fff;border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-xs)}.order-section h3{font-size:16px;font-weight:700;color:var(--text);margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--border-light)}.address-card{padding:16px;border:2px solid var(--border);border-radius:var(--radius);cursor:pointer;transition:all var(--transition);margin-bottom:10px}.address-card:hover{border-color:var(--primary-light)}.address-card.selected{border-color:var(--primary);background:var(--primary-light);position:relative}.address-card.selected:after{content:"✓";position:absolute;top:12px;right:16px;width:24px;height:24px;border-radius:50%;background:var(--primary-gradient);color:#fff;font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center}.address-card .address-user{font-weight:600;font-size:15px;color:var(--text);margin-bottom:4px}.address-card .address-detail{font-size:13px;color:var(--text-secondary);line-height:1.5}.address-card .address-id-card{font-size:12px;color:var(--text-light);margin-top:4px}.address-card .address-tag{display:inline-block;padding:2px 8px;border-radius:var(--radius-sm);font-size:11px;font-weight:600;background:var(--primary-light);color:var(--primary);margin-left:8px}.order-items-list{display:flex;flex-direction:column;gap:12px}.order-item-row{display:flex;align-items:center;gap:14px;padding:12px 0;border-bottom:1px solid var(--border-light)}.order-item-row:last-child{border-bottom:none}.order-item-row img{width:72px;height:72px;border-radius:var(--radius-sm);object-fit:cover;background:var(--bg)}.order-item-row .order-item-info{flex:1}.order-item-row .order-item-name{font-size:14px;font-weight:500;color:var(--text);margin-bottom:4px}.order-item-row .order-item-spec{font-size:12px;color:var(--text-light)}.order-item-row 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var(--border)}.points-log-item:last-child{border-bottom:none}.live-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}.live-card{background:#fff;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md);cursor:pointer;transition:var(--transition);position:relative}.live-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}.live-card .live-cover{width:100%;aspect-ratio:16/10;object-fit:cover}.live-card .live-status.living{background:#ef4444;color:#fff;display:flex;align-items:center;gap:4px}.live-card .live-status.upcoming{background:#f59e0b;color:#fff}.live-card .live-status.replay{background:#64748b;color:#fff}.live-card .live-dot{width:6px;height:6px;border-radius:50%;background:#fff;animation:pulse 1.5s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.3}}.live-card .live-info{padding:12px 16px}.live-card 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