.product-list-section{padding:60px 0;background:var(--white)}.product-list-section .container{max-width:1220px}.left-mobile-menu{display:none}.product-list-wrapper{display:flex;gap:20px;align-items:flex-start}.product-category-sidebar{width:280px;flex-shrink:0;background:var(--white);border:1px solid var(--border-color);border-radius:4px}.product-category-sidebar .category-list{list-style:none;padding:0;margin:0}.product-category-sidebar .category-item{border-bottom:1px solid var(--border-color)}.product-category-sidebar .category-item:last-child{border-bottom:none}.product-category-sidebar .category-item .category-arrow{display:inline-block;background:url(/static/fost/img/icon-aright.png) no-repeat center center;background-size:22px 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.category-link.active{background:var(--primary-color);color:var(--white)}.product-category-sidebar .category-name{flex:1;font-weight:700;font-size:20px}.product-category-sidebar .category-arrow{margin-left:10px;transition:none}.product-category-sidebar .submenu{display:none;list-style:none;padding:0;margin:0;background:var(--bg-light);border-top:1px solid var(--border-color);position:relative;left:0;transition:none}.product-category-sidebar .submenu .submenu-link{display:block;padding:12px 20px 12px 40px;color:var(--text-color);text-decoration:none;font-size:14px;max-width:1200px;margin:0 auto}.product-category-sidebar .submenu .submenu-link:hover{background:var(--white);color:var(--primary-color)}.product-category-sidebar .submenu .submenu-link.active{color:var(--primary-color);font-weight:500}.product-list-content{flex:1;min-width:0}.product-list-content>ul{display:grid;grid-template-columns:repeat(3, 1fr);gap:20px;list-style:none;padding:0;margin:0}@media(max-width: 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#f5f8fa;border-bottom:0}.product-list-content .product-item .product-image-wrapper:hover .product-image{transform:scale(1.05)}.product-list-content .product-item .product-image{width:100%;height:100%;-o-object-fit:cover;object-fit:cover;transition:transform var(--transition)}.product-list-content .product-item .product-info{width:100%;padding:15px;text-align:center}.product-list-content .product-item .product-name,.product-list-content .product-item .product-code{font-size:var(--font-size-lg);color:var(--text-color);margin-bottom:5px}.product-list-content .product-item .product-code{margin-bottom:0;font-size:var(--font-size-base);color:var(--text-light)}.product-detail-content{display:flex;gap:40px}@media(max-width: 992px){.product-detail-content{flex-direction:column;gap:30px}}.product-detail-images{flex:0 0 384px}@media(max-width: 992px){.product-detail-images{flex:1;width:100%}}.product-main-image{position:relative;width:100%;padding-bottom:100%;margin-bottom:20px;border:1px solid var(--border-color);border-radius:4px;overflow:hidden;background:#f5f5f5}.product-main-image img{position:absolute;top:0;left:0;width:100%;height:100%;-o-object-fit:contain;object-fit:contain;cursor:pointer;transition:opacity var(--transition)}.product-main-image img:hover{opacity:.9}.image-nav-btn{position:absolute;top:50%;transform:translateY(-50%);width:40px;height:40px;background:rgba(255,255,255,.9);border:none;border-radius:50%;font-size:24px;color:var(--text-color);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--transition);z-index:10}.image-nav-btn:hover{background:var(--primary-color);color:var(--white)}.image-nav-btn.prev-btn{left:15px}.image-nav-btn.next-btn{right:15px}.product-thumbnails{display:flex;align-items:center;gap:10px;position:relative}.thumbnail-nav-btn{width:30px;height:30px;background:var(--bg-light);border:1px solid var(--border-color);border-radius:4px;font-size:18px;color:var(--text-color);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--transition);flex-shrink:0}.thumbnail-nav-btn:hover{background:var(--primary-color);color:var(--white);border-color:var(--primary-color)}.thumbnail-nav-btn.disabled{opacity:.3;cursor:not-allowed;pointer-events:none}.thumbnail-container{position:relative;width:360px;overflow:hidden;flex-shrink:0}@media(max-width: 992px){.thumbnail-container{width:100%;max-width:360px}}.thumbnail-list{display:flex;gap:10px;transition:transform var(--transition);width:-moz-max-content;width:max-content}.thumbnail-item{flex:0 0 80px;width:80px;height:80px;border:2px solid #c4c6cd;border-radius:4px;overflow:hidden;cursor:pointer;transition:all var(--transition)}.thumbnail-item 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solid var(--border-color);border-radius:4px;overflow:hidden;transition:all var(--transition)}.download-item:hover{border-color:var(--primary-color);box-shadow:0 2px 8px rgba(0,0,0,.1)}.download-link{display:flex;align-items:center;padding:15px 20px;text-decoration:none;color:var(--text-color);transition:all var(--transition)}.download-link:hover{background:var(--bg-gray);color:var(--primary-color)}.download-icon{font-size:24px;margin-right:15px;flex-shrink:0}.download-name{flex:1;font-size:var(--font-size-base)}.download-btn{padding:6px 16px;background:var(--primary-color);color:var(--white);border-radius:4px;font-size:14px;transition:all var(--transition)}.download-link:hover .download-btn{background:var(--primary-hover)}.tab-content-inner{padding:20px 0}.tab-content-inner p{line-height:1.8;color:var(--text-color);margin-bottom:15px}.tab-content-inner ul{list-style:none;padding-left:0}.tab-content-inner ul li{padding:8px 0;padding-left:20px;position:relative}.specification-table{width:100%;border-collapse:collapse;margin-top:20px}.specification-table th,.specification-table td{padding:12px 15px;text-align:left;border:1px solid var(--border-color)}.specification-table th{background:var(--bg-light);font-weight:bold;color:var(--text-color)}.specification-table tr:nth-child(even){background:var(--bg-light)}.diagram-image{max-width:100%;height:auto;margin:20px 0;border:1px solid var(--border-color);border-radius:4px}.quote-modal{display:none;position:fixed;top:0;left:0;width:100%;height:100%;z-index:10000}.quote-modal.show{display:block}.quote-modal-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.5)}.quote-modal-content{position:absolute;top:50%;left:50%;transform:translate(-50%, -50%);background:var(--white);border-radius:8px;padding:40px;max-width:600px;width:90%;max-height:90vh;overflow-y:auto;box-shadow:0 4px 20px rgba(0,0,0,.3)}.quote-modal-close{position:absolute;top:15px;right:15px;width:30px;height:30px;background:rgba(0,0,0,0);border:none;font-size:24px;color:var(--text-color);cursor:pointer;line-height:1}.quote-modal-close:hover{color:var(--primary-color)}.quote-modal-title{font-size:24px;font-weight:bold;color:var(--text-color);margin-bottom:30px}.quote-form .form-group{margin-bottom:25px;position:relative;display:flex;align-items:center;gap:15px}.quote-form .form-group .form-label{display:inline-flex;align-items:center;font-size:var(--font-size-base);color:var(--text-color);margin-bottom:0;font-weight:500;min-width:140px;flex-shrink:0;white-space:nowrap}.quote-form .form-group .form-label .required{color:red;margin-left:2px}.quote-form .form-group>div{flex:1;position:relative;min-width:0}.quote-form .form-group .form-input,.quote-form .form-group .form-textarea{width:100%;padding:12px 15px;font-family:var(--font-family);font-size:var(--font-size-base);color:var(--text-color);border:1px solid var(--border-color);border-radius:4px;transition:border-color var(--transition);box-sizing:border-box;line-height:1.5}.quote-form .form-group .form-input:focus,.quote-form .form-group .form-textarea:focus{outline:none;border-color:var(--primary-color)}.quote-form .form-group .form-input.error,.quote-form .form-group .form-textarea.error{border-color:red}.quote-form .form-group .form-textarea{resize:vertical;min-height:120px;font-family:var(--font-family);font-size:var(--font-size-base);line-height:1.5}.quote-form .form-group .error-message{display:none;color:red;font-size:12px;margin-top:5px}.quote-form .form-group .error-message.show{display:block}.quote-form .form-group:has(textarea){align-items:flex-start}.form-actions{display:flex;gap:15px;margin-top:30px}.form-actions .btn-submit,.form-actions .btn-cancel{flex:1;padding:12px 30px;border:none;border-radius:4px;font-size:var(--font-size-base);cursor:pointer;transition:all var(--transition)}.form-actions .btn-submit{background:var(--primary-color);color:var(--white)}.form-actions .btn-submit:hover{background:var(--primary-hover)}.form-actions .btn-cancel{background:var(--bg-light);color:var(--text-color)}.form-actions .btn-cancel:hover{background:var(--border-color)}@media(max-width: 992px){.product-list-wrapper{flex-direction:column}.product-category-sidebar{width:100%;margin-bottom:30px}.product-category-sidebar .submenu{position:relative;left:0}.product-detail-images{flex:1}.detail-tabs-header{flex-direction:column;align-items:flex-start;gap:20px}}@media(max-width: 768px){.left-mobile-menu{display:block}.left-mobile-menu .left-menu-bar{position:fixed;top:30%;transform:translateY(-50%);left:0;z-index:999;width:28px;background:var(--primary-color);color:var(--white);border-radius:0 8px 8px 0;cursor:pointer;padding:10px 5px;transition:left .3s ease}.left-mobile-menu .left-menu-bar span{display:block;background:url(/static/fost/img/icon-smenu.png) no-repeat top center;background-size:20px 20px;padding-top:25px;font-size:14px;font-weight:bold;text-align:center}.left-mobile-menu .left-mobile-menu-overlay{display:none;position:fixed;left:0;top:var(--header-height, 56px);right:0;bottom:0;background:rgba(0,0,0,.5);z-index:998;opacity:0;transition:opacity .3s ease}.left-mobile-menu.active .left-mobile-menu-overlay{display:block;opacity:1}.left-mobile-menu.active .left-menu-bar{left:min(300px,85vw)}.product-list-section{padding:20px 0 0;overflow-x:hidden}.product-list-section .container{overflow-x:hidden}.product-list-wrapper{overflow-x:hidden}.product-category-sidebar{position:fixed;left:0;top:var(--header-height, 56px);bottom:0;width:300px;max-width:85vw;background:var(--white);border:none;border-radius:0;box-shadow:2px 0 8px rgba(0,0,0,.1);z-index:10011;transform:translateX(-100%);transition:transform .3s ease;overflow-y:auto;-webkit-overflow-scrolling:touch;padding:0;margin:0}.product-category-sidebar.sidebar-open{transform:translateX(0)}.product-category-sidebar .category-list{list-style:none;padding:0;margin:0;display:block;flex-direction:column}.product-category-sidebar .category-item{border-bottom:1px solid var(--border-color)}.product-category-sidebar .category-item:last-child{border-bottom:none}.product-category-sidebar .category-item.has-submenu .category-link{position:relative}.product-category-sidebar .category-item.expanded .submenu{display:block}.product-category-sidebar .category-link{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;color:var(--text-color);text-decoration:none;font-size:15px;transition:background-color .15s ease,color .15s ease;cursor:pointer}.product-category-sidebar .category-link:hover{background:var(--bg-light);color:var(--primary-color)}.product-category-sidebar .category-link.active{background:var(--primary-color);color:var(--white)}.product-category-sidebar .category-name{flex:1;font-weight:700;font-size:16px}.product-category-sidebar .category-arrow{margin-left:8px}.product-category-sidebar .submenu{display:none;list-style:none;padding:0;margin:0;background:var(--bg-light);border-top:1px solid var(--border-color);position:relative;left:0;transition:none}.product-category-sidebar .submenu .submenu-link{display:block;padding:10px 16px 10px 32px;color:var(--text-color);text-decoration:none;font-size:13px;transition:background-color .15s ease,color .15s ease}.product-category-sidebar .submenu .submenu-link:hover{background:var(--white);color:var(--primary-color)}.product-category-sidebar .submenu .submenu-link.active{color:var(--primary-color);font-weight:500}#mobile-submenu-portal{overflow:visible;touch-action:manipulation}#mobile-submenu-portal .submenu{display:block !important;position:relative;left:0;right:0;width:100%;max-height:60vh;overflow-y:auto;-webkit-overflow-scrolling:touch;background:var(--bg-light);border-top:1px solid var(--border-color);list-style:none;padding:0;margin:0;box-shadow:0 2px 8px rgba(0,0,0,.1);pointer-events:auto;touch-action:manipulation}#mobile-submenu-portal .submenu li{pointer-events:auto;list-style:none}#mobile-submenu-portal .submenu .submenu-link{display:block;padding:10px 16px;font-size:13px;color:var(--text-color);transition:color .2s ease,background .2s ease;white-space:nowrap;cursor:pointer;pointer-events:auto;text-decoration:none;touch-action:manipulation;-webkit-tap-highlight-color:rgba(0,0,0,.1)}#mobile-submenu-portal .submenu .submenu-link:hover{background:rgba(255,255,255,.8);color:var(--primary-color)}#mobile-submenu-portal .submenu .submenu-link:active{background:rgba(255,255,255,.9)}#mobile-submenu-portal .submenu .submenu-link.active{color:var(--primary-color);font-weight:500}.product-list-content{width:100%;overflow:hidden;padding-bottom:30px}.product-empty{min-height:calc(100vh - 56px - 150px - 350px)}.product-list-wrapper:has(.product-detail-content)>.product-category-sidebar{display:none !important}.product-detail-content{gap:0}.product-detail-content .product-detail-info-mobile{display:block;padding:0 15px}.product-detail-content .product-detail-info-mobile .product-detail-name{font-size:20px;font-weight:bold;color:var(--text-color);margin-bottom:8px}.product-detail-content .product-detail-info-mobile .product-detail-code{font-size:14px;color:var(--text-light);margin-bottom:0}.product-detail-content .product-images-swiper-mobile{display:block;width:100%;margin:20px 0;position:relative}.product-detail-content .product-images-swiper-mobile .swiper-wrapper{display:flex}.product-detail-content .product-images-swiper-mobile .swiper-slide{width:100% 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.image-viewer-swiper .swiper-pagination .swiper-pagination-bullet.swiper-pagination-bullet-active{background:var(--primary-color)}