#app-root{min-height:100vh}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-text-size-adjust:100%}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Helvetica Neue,Arial,sans-serif;color:var(--text-color);background-color:var(--bg-color);line-height:1.6;-webkit-font-smoothing:antialiased}.runtime-error{max-width:520px;margin:96px auto;padding:20px 24px;border:1px solid #ffd6d6;border-radius:6px;background:#fff7f7;color:#b42318;font-size:15px;line-height:1.7}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto;display:block}ul,ol{list-style:none}button{cursor:pointer;font-family:inherit;border:none;outline:none}input,textarea,select{font-family:inherit;outline:none}:root{--primary-color: #667eea;--primary-hover: #5a6fd6;--primary-light: #eef0ff;--bg-color: #f5f7fa;--card-bg: #ffffff;--text-color: #333333;--text-secondary: #666666;--text-muted: #999999;--border-color: #e8e8e8;--success-color: #52c41a;--warning-color: #faad14;--danger-color: #ff4d4f;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .08);--shadow-md: 0 4px 12px rgba(0, 0, 0, .1);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .12);--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--max-width: 1200px;--header-height: 56px}.container{max-width:var(--max-width);margin:0 auto;padding:0 16px}.page-wrapper{min-height:calc(100vh - var(--header-height))}.grid{display:grid;gap:16px}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}.card{background:var(--card-bg);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);overflow:hidden;transition:transform .2s,box-shadow .2s}.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.card-clickable{cursor:pointer}.card-body{padding:16px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 20px;border-radius:var(--radius-sm);font-size:14px;font-weight:500;transition:background-color .2s,opacity .2s}.btn-primary{background:var(--primary-color);color:#fff}.btn-primary:hover{background:var(--primary-hover)}.btn-outline{background:transparent;color:var(--primary-color);border:1px solid var(--primary-color)}.btn-outline:hover{background:var(--primary-light)}.btn-block{width:100%}.btn:disabled{opacity:.5;cursor:not-allowed}.badge{display:inline-block;padding:2px 8px;border-radius:4px;font-size:12px;font-weight:500}.badge-primary{background:var(--primary-light);color:var(--primary-color)}.badge-success{background:#f6ffed;color:var(--success-color)}.badge-warning{background:#fffbe6;color:#d48806}.spinner{display:flex;align-items:center;justify-content:center;padding:40px 0}.spinner:after{content:"";width:32px;height:32px;border:3px solid var(--border-color);border-top-color:var(--primary-color);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.empty-state{text-align:center;padding:60px 20px;color:var(--text-muted)}.empty-state .empty-icon{font-size:48px;margin-bottom:12px;opacity:.5}.empty-state p{font-size:14px}.error-state{text-align:center;padding:40px 20px;color:var(--text-secondary)}.error-state p{margin-bottom:12px;font-size:14px}.page-header{background:var(--card-bg);border-bottom:1px solid var(--border-color);padding:0 16px;height:var(--header-height);display:flex;align-items:center;position:sticky;top:0;z-index:100}.page-header .header-inner{max-width:var(--max-width);margin:0 auto;width:100%;display:flex;align-items:center;gap:12px}.page-header .back-btn{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;background:var(--bg-color);color:var(--text-color);font-size:18px;flex-shrink:0}.page-header .header-title{font-size:17px;font-weight:600;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.site-footer{background:var(--card-bg);border-top:1px solid var(--border-color);padding:24px 16px;text-align:center;color:var(--text-muted);font-size:13px;margin-top:40px}.site-footer a{color:var(--primary-color)}.category-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.category-item{display:flex;flex-direction:column;align-items:center;padding:20px 12px;background:var(--card-bg);border-radius:var(--radius-md);cursor:pointer;transition:transform .2s,box-shadow .2s}.category-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.category-item .cat-icon{width:48px;height:48px;border-radius:var(--radius-sm);background:var(--primary-light);display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:8px}.category-item .cat-name{font-size:13px;color:var(--text-color);text-align:center}.h-scroll{display:flex;gap:12px;overflow-x:auto;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;padding-bottom:8px}.h-scroll::-webkit-scrollbar{display:none}.h-scroll>*{scroll-snap-align:start;flex-shrink:0}.hero-section{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:48px 16px 40px;text-align:center}.hero-section .hero-title{font-size:28px;font-weight:700;margin-bottom:8px}.hero-section .hero-subtitle{font-size:15px;opacity:.85;margin-bottom:24px}.hero-section .hero-search{max-width:480px;margin:0 auto}.hero-section .hero-search input{width:100%;padding:12px 20px;border-radius:24px;border:none;font-size:15px;background:#fffffff2;color:var(--text-color)}.section{padding:32px 16px;max-width:var(--max-width);margin:0 auto}.section .section-title{font-size:20px;font-weight:700;margin-bottom:16px;color:var(--text-color)}.tool-card{display:flex;align-items:center;gap:12px;padding:14px;background:var(--card-bg);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);cursor:pointer;transition:transform .2s,box-shadow .2s;min-width:260px}.tool-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.tool-card .tool-icon{width:44px;height:44px;border-radius:var(--radius-sm);background:var(--primary-light);display:flex;align-items:center;justify-content:center;font-size:22px;flex-shrink:0;overflow:hidden}.tool-card .tool-icon img{width:100%;height:100%;object-fit:cover}.tool-card .tool-info{flex:1;min-width:0}.tool-card .tool-name{font-size:15px;font-weight:600;color:var(--text-color);margin-bottom:2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.tool-card .tool-desc{font-size:12px;color:var(--text-muted);overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.material-card{background:var(--card-bg);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);overflow:hidden;cursor:pointer;transition:transform .2s,box-shadow .2s}.material-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.material-card .mat-cover{width:100%;height:180px;background:var(--bg-color);display:flex;align-items:center;justify-content:center;overflow:hidden}.material-card .mat-cover img{width:100%;height:100%;object-fit:cover}.material-card .mat-cover-placeholder{font-size:48px;color:var(--text-muted);opacity:.4}.material-card .mat-body{padding:12px 14px}.material-card .mat-title{font-size:15px;font-weight:600;color:var(--text-color);margin-bottom:4px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.material-card .mat-desc{font-size:12px;color:var(--text-muted);margin-bottom:8px;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.material-card .mat-footer{display:flex;align-items:center;justify-content:space-between}.material-card .mat-price{font-size:16px;font-weight:700;color:var(--danger-color)}.material-card .mat-price.free{color:var(--success-color)}.material-card .mat-type-badge{font-size:11px;padding:2px 8px;border-radius:4px;background:var(--primary-light);color:var(--primary-color)}.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}.materials-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}.category-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}.category-tab{padding:8px 16px;border-radius:20px;font-size:13px;color:var(--text-secondary);background:var(--card-bg);border:1px solid var(--border-color);transition:all .2s;white-space:nowrap}.category-tab:hover{border-color:var(--primary-color);color:var(--primary-color)}.category-tab.active{background:var(--primary-color);color:#fff;border-color:var(--primary-color)}.detail-header{padding:24px 16px}.detail-header .detail-icon{width:72px;height:72px;border-radius:var(--radius-md);background:var(--primary-light);display:flex;align-items:center;justify-content:center;font-size:36px;margin-bottom:12px;overflow:hidden}.detail-header .detail-icon img{width:100%;height:100%;object-fit:cover}.detail-header .detail-title{font-size:22px;font-weight:700;margin-bottom:4px}.detail-header .detail-desc{font-size:14px;color:var(--text-secondary);line-height:1.5}.detail-body{padding:0 16px 24px}.detail-section{margin-bottom:24px}.detail-section h3{font-size:17px;font-weight:600;margin-bottom:12px;color:var(--text-color)}.mat-cover-large{width:100%;max-height:320px;overflow:hidden;background:var(--bg-color);border-radius:var(--radius-md);margin-bottom:20px}.mat-cover-large img{width:100%;max-height:320px;object-fit:contain}.mat-price-section{display:flex;align-items:baseline;gap:8px;padding:12px 0;border-bottom:1px solid var(--border-color);margin-bottom:16px}.mat-price-section .price-current{font-size:28px;font-weight:700;color:var(--danger-color)}.mat-price-section .price-current.free{color:var(--success-color)}.mat-price-section .price-original{font-size:14px;color:var(--text-muted);text-decoration:line-through}.mat-actions{display:flex;gap:12px;margin-bottom:20px}.mat-actions .btn{flex:1}.detail-images{display:grid;gap:12px}.detail-images img{width:100%;border-radius:var(--radius-sm)}.sku-selector{margin-bottom:16px}.sku-selector label{font-size:14px;font-weight:500;margin-bottom:8px;display:block;color:var(--text-color)}.sku-selector select{width:100%;padding:10px 12px;border:1px solid var(--border-color);border-radius:var(--radius-sm);font-size:14px;background:var(--card-bg);color:var(--text-color)}.delivery-info{background:#f0fdf4;border:1px solid #86efac;border-radius:var(--radius-md);padding:16px}.delivery-info h4{font-size:15px;font-weight:600;color:#166534;margin-bottom:8px}.delivery-info .delivery-item{font-size:13px;color:#166534;margin-bottom:4px;word-break:break-all}.delivery-info .delivery-item span{font-weight:500}.body-html{line-height:1.8;font-size:15px;color:var(--text-color);word-break:break-word}.body-html img{max-width:100%;border-radius:var(--radius-sm);margin:8px 0}.body-html p{margin-bottom:12px}.tool-input-area{background:var(--bg-color);border-radius:var(--radius-md);padding:16px}.tool-input-area .form-group{margin-bottom:14px}.tool-input-area label{display:block;font-size:14px;font-weight:500;margin-bottom:6px;color:var(--text-color)}.tool-input-area input,.tool-input-area select{width:100%;padding:10px 12px;border:1px solid var(--border-color);border-radius:var(--radius-sm);font-size:14px;background:var(--card-bg)}.tool-result-area{margin-top:20px}.tool-result-area .result-card{background:var(--primary-light);border-radius:var(--radius-md);padding:20px;text-align:center}.tool-result-area .result-value{font-size:28px;font-weight:700;color:var(--primary-color)}.tool-result-area .result-label{font-size:14px;color:var(--text-secondary);margin-top:4px}.tool-result-area .result-detail{margin-top:12px;font-size:13px;color:var(--text-secondary);line-height:1.6}.tags{display:flex;gap:6px;flex-wrap:wrap}.tag{font-size:11px;padding:2px 8px;border-radius:4px;background:var(--bg-color);color:var(--text-muted)}@media (max-width: 768px){.hero-section{padding:36px 16px 32px}.hero-section .hero-title{font-size:24px}.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}.category-grid{grid-template-columns:repeat(3,1fr)}.tools-grid{grid-template-columns:1fr}.materials-grid{grid-template-columns:repeat(2,1fr)}.tool-card{min-width:auto}.mat-actions{flex-direction:column}.section{padding:24px 12px}}@media (max-width: 480px){.category-grid{grid-template-columns:repeat(2,1fr)}.materials-grid{grid-template-columns:1fr}.hero-section .hero-title{font-size:22px}}@media (min-width: 769px){.section{padding:40px 0}.hero-section{padding:64px 16px 48px}.hero-section .hero-title{font-size:36px}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}}