/* ===== 全局重置与工具类 ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        body {
            font-family: 'Inter', 'Microsoft Yahei', sans-serif;
            color: #404040;
            overflow-x: hidden;
            background-color: #fafafa;
            line-height: 1.6;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        img {
            display: block;
            max-width: 100%;
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .btn {
            display: inline-block;
            font-weight: 500;
            padding: 0.75rem 1.5rem;
            border-radius: 0.375rem;
            transition: all 0.3s ease;
            cursor: pointer;
            border: 2px solid transparent;
            font-size: 1rem;
            line-height: 1.5;
        }
        .btn-primary {
            background-color: #cf0413;
            color: #fff;
            border-color: #cf0413;
        }
        .btn-primary:hover {
            background-color: #9e0c23;
            border-color: #9e0c23;
        }
        .btn-outline-white {
            background: transparent;
            border-color: #fff;
            color: #fff;
        }
        .btn-outline-white:hover {
            background: #fff;
            color: #c8102e;
        }
        .btn-outline-primary {
            background: transparent;
            border-color: #c8102e;
            color: #c8102e;
        }
        .btn-outline-primary:hover {
            background: #c8102e;
            color: #fff;
        }

        /* 自定义色彩 */
        .text-primary {
            color: #c8102e;
        }
        .bg-primary {
            background-color: #c8102e;
        }
        .bg-primary-dark {
            background-color: #9e0c23;
        }
        .bg-dark {
            background-color: #1a1a1a;
        }
        .text-white {
            color: #ffffff;
        }
        .text-gray-600 {
            color: #525252;
        }
        .text-gray-800 {
            color: #262626;
        }

        /* ===== 导航栏 ===== */
        #navbar {
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 50;
            transition: background-color 0.3s, box-shadow 0.3s;
            background-color: #c8102e;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
        }
        #navbar.scrolled {
            background-color: #cf0413;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.75rem 1.5rem;
        }
        .logo img {
            height: 4rem;
            margin-left: -10px;
        }
        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 2rem;
        }
        .desktop-nav a {
            color: #fff;
            font-weight: 500;
            transition: opacity 0.2s;
            position: relative;
        }
        .desktop-nav a:hover {
            opacity: 0.8;
        }
        .desktop-nav a.active {
            opacity: 1;
            font-weight: 700;
			color: #f1f540;
        }
        .desktop-nav .lang-btn {
            border: 1px solid #fff;
            padding: 0.4rem 1rem;
            border-radius: 0.375rem;
            transition: all 0.3s;
        }
        .desktop-nav .lang-btn:hover {
            background: #fff;
            color: #c8102e;
            opacity: 1;
        }
        .menu-btn {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
        }
        /* 移动端菜单 */
        .mobile-menu {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            background: rgba(240, 109, 109, 1);
            backdrop-filter: blur(4px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
            border-radius: 0 0 0.5rem 0.5rem;
            padding: 1.5rem;
            flex-direction: column;
            gap: 0.5rem;
            transform: translateY(-100%);
            opacity: 0;
            pointer-events: none;
            transition: all 0.3s ease;
        }
        .mobile-menu.active {
            display: flex;
            transform: translateY(0);
            opacity: 1;
            pointer-events: auto;
        }
        .mobile-menu a {
            display: block;
            padding: 0.75rem 0;
            border-bottom: 1px solid #e5e5e5;
            color: #ffffff;
            font-weight: 500;
            transition: color 0.2s;
        }
        .mobile-menu a:last-child {
            border-bottom: none;
        }
        .mobile-menu a:hover {
            color: #c8102e;
        }

        /* ===== Banner 页头区域 ===== */
        .page-banner {
            position: relative;
            height: 460px;
            margin-top: 64px;
            overflow: hidden;
        }
        .page-banner .banner-slide {
            position: absolute;
            inset: 0;
            opacity: 0;
            transition: opacity 1s ease-in-out;
            z-index: 0;
        }
        .page-banner .banner-slide.active {
            opacity: 1;
            z-index: 1;
        }
        .page-banner .banner-slide img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .page-banner .banner-overlay {
            position: absolute;
            inset: 0;
            background: rgba(200, 16, 46, 0.5);
            z-index: 2;
        }
        .page-banner-content {
            position: relative;
            z-index: 3;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            height: 100%;
            text-align: center;
            color: #fff;
        }
        .page-banner-content h1 {
            font-size: clamp(2rem, 5vw, 3.5rem);
            font-weight: 700;
            margin-bottom: 0.75rem;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
        }
        .page-banner-content p {
            font-size: clamp(1rem, 2.5vw, 1.25rem);
            opacity: 0.9;
        }

        /* ===== 通用区块 ===== */
        .section {
            padding: 5rem 0;
        }
        .section-title {
            font-size: clamp(2rem, 5vw, 3rem);
            font-weight: 700;
            color: #1a1a1a;
            margin-bottom: 1rem;
            position: relative;
            padding-bottom: 1rem;
        }
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 5rem;
            height: 0.25rem;
            background: #c8102e;
        }
        .section-title.centered {
            display: inline-block;
            text-align: center;
        }
        .section-title.centered::after {
            left: 50%;
            transform: translateX(-50%);
        }

        /* ===== 产品中心布局 ===== */
        .product-layout {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2.5rem;
            padding: 2rem 0 3rem;
        }

        /* 侧边栏 */
        .sidebar {
            order: 2;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 0.5rem;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
            border: 1px solid #e5e5e5;
            overflow: hidden;
            margin-bottom: 2rem;
        }
        .sidebar-card-title {
            font-size: 1.25rem;
            font-weight: 700;
            color: #1a1a1a;
            padding: 1.25rem 1.5rem;
            position: relative;
            background: #c8102e;
            border-bottom: 2px solid #c8102e;
        }
        .sidebar-card-title::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 3rem;
            height: 2px;
            background: #c8102e;
        }
        .sidebar-card-title span {
            display: inline-block;
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            padding-left: 0.75rem;
        }
        .sidebar-nav ul {
            list-style: none;
            padding: 0;
        }
        .sidebar-nav li a {
            display: block;
            padding: 0.85rem 1.5rem;
            border-bottom: 1px solid #f0f0f0;
            color: #404040;
            font-weight: 500;
            transition: all 0.2s;
            position: relative;
            padding-left: 2rem;
            font-size: 0.95rem;
        }
        .sidebar-nav li a::before {
            content: '';
            position: absolute;
            left: 0.75rem;
            top: 50%;
            transform: translateY(-50%);
            width: 6px;
            height: 6px;
            background: #c8102e;
            border-radius: 50%;
            opacity: 0;
            transition: opacity 0.2s;
        }
        .sidebar-nav li a:hover,
        .sidebar-nav li a.active {
            color: #c8102e;
            background: rgba(200, 16, 46, 0.05);
            padding-left: 2.5rem;
        }
        .sidebar-nav li a:hover::before,
        .sidebar-nav li a.active::before {
            opacity: 1;
        }
        .sidebar-contact {
            padding: 1.5rem;
        }
        .sidebar-contact p {
            margin-bottom: 0.5rem;
            font-size: 0.95rem;
            color: #525252;
            line-height: 1.8;
        }
        .sidebar-contact .label {
            font-weight: 700;
            color: #1a1a1a;
        }
        .sidebar-contact a {
            color: #c8102e;
            transition: opacity 0.2s;
        }
        .sidebar-contact a:hover {
            opacity: 0.8;
        }

        /* 主内容区 */
        .main-content {
            order: 1;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            padding: 1rem 0 1rem 20px;
            margin-bottom: 1rem;
            font-size: 0.9rem;
            color: #fff;
            flex-wrap: wrap;
            background: #c8102e;
        }
        .breadcrumb a {
            color: #fff;
            transition: color 0.2s;
        }
        .breadcrumb a:hover {
            color: #c8102e;
        }
        .breadcrumb .separator {
            color: #ccc;
        }
        .breadcrumb .current {
            color: #fff;
            font-weight: 500;
        }

        /* 产品类别标签 */
        .product-category-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
            margin-bottom: 2.5rem;
            justify-content: center;
        }
        .product-category-tabs .tab-btn {
            padding: 0.6rem 1.5rem;
            border: 2px solid #e5e5e5;
            border-radius: 0.375rem;
            background: #fff;
            color: #404040;
            font-weight: 500;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all 0.3s;
        }
        .product-category-tabs .tab-btn:hover,
        .product-category-tabs .tab-btn.active {
            background: #c8102e;
            border-color: #c8102e;
            color: #fff;
        }

        /* 产品列表区 */
        .product-list-header {
            background: #fff;
            border-radius: 0.5rem;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
            border: 1px solid #e5e5e5;
            padding: 2rem 2.5rem;
            margin-bottom: 2rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1rem;
        }
        .product-list-header h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: #1a1a1a;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid #c8102e;
        }
        .product-list-header h2 span {
            color: #c8102e;
        }
        .product-list-header .page-info {
            font-size: 0.9rem;
            color: #888;
        }
        .product-list-header .page-info p {
            font-size: 0.9rem;
            color: #525252;
        }
        .product-list-header .page-info a {
            color: #c8102e;
        }

        /* 产品卡片网格 */
        .products-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .product-card {
            background: #fff;
            border-radius: 0.5rem;
            overflow: hidden;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
            border: 1px solid #e5e5e5;
            transition: all 0.3s ease;
        }
        .product-card:hover {
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
            transform: translateY(-4px);
            border-color: #c8102e;
        }
        .product-card-img {
            width: 100%;
            height: 220px;
            background: #e5e5e5;
            overflow: hidden;
            position: relative;
        }
        .product-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .product-card:hover .product-card-img img {
            transform: scale(1.05);
        }
        .product-card-body {
            padding: 1.5rem;
        }
        .product-card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            color: #1a1a1a;
        }
        .product-card-body h3 a {
            color: #1a1a1a;
            transition: color 0.2s;
        }
        .product-card-body h3 a:hover {
            color: #c8102e;
        }
        .product-card-body p {
            font-size: 0.95rem;
            color: #525252;
            line-height: 1.8;
            margin-bottom: 1rem;
        }
        .product-card-body .product-select {
            width: 100%;
        }
        .product-card-body .product-select select {
            width: 100%;
            padding: 0.6rem 1rem;
            border: 2px solid #e5e5e5;
            border-radius: 0.375rem;
            font-size: 0.9rem;
            color: #404040;
            background: #fafafa;
            cursor: pointer;
            transition: border-color 0.3s;
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M6 8L1 3h10z' fill='%23999'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 1rem center;
        }
        .product-card-body .product-select select:focus {
            outline: none;
            border-color: #c8102e;
        }
        .product-card-body .product-select label {
            display: block;
            font-size: 0.85rem;
            color: #888;
            margin-bottom: 0.4rem;
            font-weight: 500;
        }
		/* 下拉 */
		.product-select select {
			width: 100%;
			padding: 6px 10px;
			border: 1px solid #ddd;
			border-radius: 4px;
			background-color: #fff;
			font-size: 14px;
			cursor: pointer;
		}
		.product-select select:focus {
			outline: none;
			border-color: #c8102e;
		}

        /* 分页 */
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 2rem 0;
            flex-wrap: wrap;
        }
        .pagination .page-link {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 2.5rem;
            height: 2.5rem;
            padding: 0 0.75rem;
            border: 2px solid #e5e5e5;
            border-radius: 0.375rem;
            background: #fff;
            color: #404040;
            font-size: 0.9rem;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s;
        }
        .pagination .page-link:hover {
            border-color: #c8102e;
            color: #c8102e;
        }
        .pagination .page-link.active {
            background: #c8102e;
            border-color: #c8102e;
            color: #fff;
        }
        .pagination .page-link.disabled {
            opacity: 0.4;
            cursor: not-allowed;
            pointer-events: none;
        }
        .pagination .page-info-text {
            font-size: 0.9rem;
            color: #888;
            margin: 0 0.75rem;
        }

        /* ===== 产品详情展开区 ===== */
        .product-detail-section {
            background: #fff;
            border-radius: 0.5rem;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
            border: 1px solid #e5e5e5;
            padding: 2.5rem;
            margin-bottom: 2rem;
        }
        .product-detail-section h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: #1a1a1a;
            margin-bottom: 1.5rem;
            padding-bottom: 0.75rem;
            border-bottom: 2px solid #c8102e;
        }
        .product-detail-section h3 span {
            color: #c8102e;
        }
        .product-detail-section p {
            font-size: 1rem;
            line-height: 2;
            color: #404040;
            margin-bottom: 0.75rem;
        }
        .product-detail-section ul {
            list-style: none;
            padding: 0;
            margin: 0.75rem 0;
        }
        .product-detail-section ul li {
            padding: 0.4rem 0 0.4rem 1.5rem;
            position: relative;
            line-height: 1.8;
            color: #404040;
        }
        .product-detail-section ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 1rem;
            width: 6px;
            height: 6px;
            background: #c8102e;
            border-radius: 50%;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: #cf0413;
            color: rgba(255, 255, 255, 0.8);
            padding: 3rem 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer h3 {
            color: #fff;
            font-weight: 700;
            margin-bottom: 1rem;
            font-size: 1.125rem;
        }
        .footer ul {
            list-style: none;
        }
        .footer li {
            margin-bottom: 0.5rem;
        }
        .footer a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.2);
            padding-top: 2rem;
            text-align: center;
            font-size: 0.9rem;
            line-height: 2;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.8);
            transition: color 0.2s;
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        /* 返回顶部 */
        .back-to-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            width: 3rem;
            height: 3rem;
            background: #9e0c23;
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s;
            cursor: pointer;
            border: none;
            font-size: 1.2rem;
            z-index: 40;
        }
        .back-to-top.visible {
            opacity: 1;
            pointer-events: auto;
        }

        /* 响应式 */
        @media (min-width: 768px) {
            .product-layout {
                grid-template-columns: 280px 1fr;
            }
            .sidebar {
                order: 1;
            }
            .main-content {
                order: 2;
            }
            .products-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width: 1024px) {
            .products-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }
        @media (min-width: 768px) {
            .desktop-nav {
                display: flex;
            }
            .menu-btn {
                display: none;
            }
        }
        @media (max-width: 767px) {
            .desktop-nav {
                display: none;
            }
            .menu-btn {
                display: block;
            }
            .logo img {
                height: 3rem;
            }
            .page-banner {
                height: 280px;
            }
            .product-card-body {
                padding: 1rem;
            }
            .product-list-header {
                padding: 1.5rem;
                flex-direction: column;
                align-items: flex-start;
            }
        }