/* Banner 样式 */
        .banner {
            width: 100%;
            height: 50vh;
            /* background-image 由PHP动态设置 */
            background-size: cover;
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .banner::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(255, 255, 255, 0.3);
        }

        .banner h1 {
            position: relative;
            font-size: 48px;
            color: #333;
            text-transform: uppercase;
            font-weight: 900;
            letter-spacing: 2px;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
            transform: rotate(-3deg);
        }

        /* 面包屑导航 */
        .mbx {
            font-size: 1rem;
            color: #4d4d4d;
            font-family: Arial, sans-serif;
            background: #eee;
            padding: 1.5rem 0;
            margin-bottom: 2rem;
        }

        .mbx span {
            color: var(--primary-orange);
            font-weight: bold;
        }

        /* CSS Variables */
        :root {
            --primary-orange: #ff6600;
            --primary-hover: #e65c00;
            --text-dark: #1a1a1a;
            --text-gray: #666;
            --bg-light: #f8f9fa;
            --container-width: 1470px;
            --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.08);
            --shadow-hover: 0 15px 40px rgba(0, 0, 0, 0.12);
            --transition: all 0.3s ease;
        }

        /* 顶部工具栏 */
        .top-bar {
            background: #222;
            color: #ccc;
            padding: 5px 10%;
            font-size: 12px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo img {
            height: 45px;
        }

        .btn {
            display: inline-block;
            padding: 12px 30px;
            background: var(--primary-orange);
            color: #fff;
            font-weight: 600;
            border-radius: 4px;
            letter-spacing: 0.5px;
            text-transform: uppercase;
            font-size: 14px;
            border: none;
            cursor: pointer;
            box-shadow: 0 4px 15px rgba(255, 102, 0, 0.3);
            transition: var(--transition);
        }

        nav ul {
            list-style: none;
            display: flex;
            gap: 25px;
            margin: 0;
            font-weight: bold;
            align-items: center;
        }

        nav a {
            text-decoration: none;
            color: #333;
            text-transform: uppercase;
        }

        .nav-contact {
            background: var(--primary-orange);
            color: white !important;
            padding: 8px 20px;
            border-radius: 2px;
        }

        /* Hero Banner */
        .hero {
            width: 100%;
            height: 350px;
            /* background-image 由PHP动态设置 */
        }

        /* 面包屑 */
        .breadcrumbs {
            padding: 15px 10%;
            background: var(--light-bg);
            font-size: 13px;
            color: #666;
        }

        /* 主体布局 */
        .main-container {
            display: grid;
            grid-template-columns: 370px 1fr;
            gap: 40px;
            padding: 40px 10%;
        }

        /* 左侧边栏 */
        .sidebar-box {
            margin-bottom: 30px;
            border: 1px solid var(--border-color);
        }

        .sidebar-title {
            background: var(--primary-orange);
            color: white;
            padding: 15px;
            text-align: center;
            font-size: 20px;
            font-weight: bold;
        }

        .sidebar-menu {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .sidebar-menu li {
            padding: 15px 20px;
            border-bottom: 1px solid var(--border-color);
            background: #f9f9f9;
            cursor: pointer;
        }

        .sidebar-menu li a {
            color: inherit;
            text-decoration: none;
            display: block;
        }

        .sidebar-menu li:hover {
            background: #eee;
        }

        .contact-info {
            padding: 20px;
            font-size: 13px;
            line-height: 1.8;
        }

        /* 优化工厂网格性能 */
        .factory-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin-bottom: 30px;
            grid-auto-rows: min-content;
            align-items: start;
        }

        /* 默认状态：卡片底部的文字标签 */
        .card-label {
            padding: 12px;
            font-size: 14px;
            background: #fff;
            color: #333;
            border-top: 1px solid #eee;
            transition: all 0.3s ease;
            /* 添加平滑过渡效果 */
        }

        /* 悬浮状态：当鼠标移入卡片时，改变标签的背景和文字颜色 */
        .card:hover .card-label {
            background: var(--primary-orange);
            color: white;
        }

        /* 简化卡片样式，移除复杂动画 */
        .card {
            border: 1px solid #ddd;
            text-align: center;
            overflow: hidden;
            cursor: pointer;
            transition: transform 0.2s ease;
        }

        .card:hover {
            transform: translateY(-2px);
        }

        .card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }

        /* 分页 */
        .pagination {
            grid-column: 1 / -1;
            display: flex;
            justify-content: flex-end;
            margin-top: 30px;
            gap: 5px;
        }

        .pagination span {
            padding: 5px 12px;
            border: 1px solid #ddd;
            cursor: pointer;
            font-size: 12px;
        }

        /* 优化懒加载样式，减少复杂动画 */
        .lazy-img {
            opacity: 0;
            transition: opacity 0.3s ease;
            background: #f0f0f0;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }

        .lazy-img.loaded {
            opacity: 1;
        }

        .loading-placeholder {
            background: #f0f0f0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #999;
            font-size: 12px;
            position: relative;
        }

        .loading-placeholder::before {
            content: "Loading...";
            position: absolute;
            color: #999;
            font-size: 12px;
        }

        /* 简化加载动画以提升性能 */
        .loading-placeholder::after {
            content: "";
            width: 16px;
            height: 16px;
            border: 2px solid #ddd;
            border-top: 2px solid #ff6600;
            border-radius: 50%;
            animation: spin 0.8s linear infinite;
            position: absolute;
            top: 90%;
            left: 50%;
            transform: translate(-50%, -50%);
        }

        @keyframes spin {
            0% {
                transform: translate(-50%, -50%) rotate(0deg);
            }

            100% {
                transform: translate(-50%, -50%) rotate(360deg);
            }
        }

        /* 移除重复的CSS定义 */

        .card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }

        .footer-map {
            height: 400px;
            background: #e5e3df;
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
            color: #666;
            font-size: 18px;
        }

        .callback-form {
            background: white;
            padding: 30px 60px;
            box-shadow: 0 -5px 15px rgba(0, 0, 0, 0.1);
            width: 500px;
            text-align: center;
            font-size: 24px;
            font-weight: bold;
        }

        /* 右侧悬浮球 */
        .float-sidebar {
            position: fixed;
            right: 0;
            top: 40%;
            z-index: 1001;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .float-btn {
            width: 45px;
            height: 45px;
            background-color: #ff6600 !important;
            color: #fff;
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            font-size: 20px;
            cursor: pointer;
            box-shadow: 0 2px 5px rgba(0,0,0,0.2);
            margin-right: 10px;
            transition: transform 0.3s ease;
        }

        .float-btn:hover {
            transform: scale(1.1);
        }

        /* --- 2. 顶部导航 (Header) --- */
        .top-bar {
            background: #111;
            color: #ccc;
            font-size: 13px;
            padding: 10px 0;
            border-bottom: 1px solid #222;
        }

        .top-bar .container {
            display: flex;
            justify-content: space-between;
            width: 100%;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }

        ul {
            list-style: none;
        }

        img {
            max-width: 100%;
            display: block;
        }

        .container {
            max-width: var(--container-width) !important;
            margin: 0 auto;
            padding: 0 20px;
        }


        header {
            background: #fff;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
            padding: 0;
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .logo {
            font-size: 28px;
            font-weight: 800;
            font-family: 'Poppins', sans-serif;
            display: flex;
            align-items: center;
            color: #000;
            letter-spacing: -1px;
        }

        .logo i {
            color: var(--primary-orange);
            margin-right: 10px;
            font-size: 32px;
        }

        nav ul {
            display: flex;
            gap: 40px;
            align-items: center;
        }

        nav a {
            font-weight: 600;
            font-size: 15px;
            text-transform: uppercase;
            color: #333;
            position: relative;
        }

        .header-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 80px;
        }

        nav a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary-orange);
            transition: 0.3s;
        }

        nav a:hover::after,
        nav a.active::after {
            width: 100%;
        }

        nav a:hover,
        nav a.active {
            color: var(--primary-orange);
        }

        /* 定义自定义颜色 */


        /* --- 9. Map & Callback --- */
        .map-section {
            position: relative;
            height: 550px;
            background: url('/img/map.jpg') center/cover;
        }

        .contact-form-wrapper {
            position: absolute;
            top: 100%;
            left: 50%;
            transform: translate(-50%, -50%);
            background: rgba(255, 255, 255, 0.95);
            padding: 50px;
            width: 450px;
            border-radius: 10px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            text-align: center;
            /* 移除backdrop-filter以提升性能 */
        }

        .contact-form-wrapper h3 {
            margin-bottom: 25px;
            font-size: 24px;
        }

        .form-group {
            margin-bottom: 15px;
        }

        .form-input {
            width: 100%;
            padding: 15px;
            border: 1px solid #ddd;
            border-radius: 5px;
            background: #f9f9f9;
            font-family: inherit;
            font-size: 14px;
            outline: none;
            transition: 0.3s;
        }

        .form-input:focus {
            border-color: var(--primary-orange);
            background: #fff;
        }

        .submit-btn {
            background: #111;
            color: #fff;
            width: 100%;
            padding: 15px;
            border: none;
            cursor: pointer;
            font-weight: 700;
            text-transform: uppercase;
            border-radius: 5px;
            transition: 0.3s;
        }

        .submit-btn:hover {
            background: var(--primary-orange);
        }

        /* --- 10. Footer --- */
        footer {
            background: #111;
            color: #fff;
            padding: 80px 0 30px;
            font-size: 14px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 100px;
            padding-bottom: 50px;
            /* border-bottom: 1px solid #333; */
        }

        .footer-col h4 {
            color: #fff;
            margin-bottom: 25px;
            font-size: 18px;
            position: relative;
            display: inline-block;
        }

        .footer-col h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -8px;
            width: 30px;
            height: 2px;
            background: var(--primary-orange);
        }
        .footer-col:last-child {
            text-align: left;
            margin-left: auto;
            max-width: 500px;
            padding-left: 250px;
        }

        .footer-col:last-child h4 {
            display: inline-block;
        }

        .footer-col:last-child .footer-info-item {
            justify-content: flex-start;
            align-items: flex-start;
        }

        .footer-col:last-child .footer-info-item span {
            word-wrap: break-word;
            word-break: break-word;
            white-space: normal;
        }

        .footer-info-item {
            display: flex;
            margin-bottom: 15px;
            gap: 15px;
            color: #aaa;
        }

        .footer-info-item i {
            color: var(--primary-orange);
            margin-top: 4px;
        }

        .social-icons {
            margin-top: 20px;
            display: flex;
            gap: 15px;
        }

        /* 下拉菜单样式 */
        .dropdown {
            position: relative;
        }

        .dropdown-menu {
            position: absolute;
            top: 100%;
            left: 0;
            background: #fff;
            min-width: 180px;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
            border-radius: 4px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(-10px);
            transition: all 0.3s ease;
            z-index: 1000;
            border-top: 3px solid var(--primary-orange);
        }

        .dropdown:hover .dropdown-menu {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .dropdown-menu a {
            display: block;
            padding: 12px 20px;
            color: #333;
            font-size: 14px;
            font-weight: 500;
            text-transform: none;
            border-bottom: 1px solid #f0f0f0;
            transition: all 0.3s ease;
        }

        .dropdown-menu a:last-child {
            border-bottom: none;
        }

        .dropdown-menu a:hover {
            background: #f8f9fa;
            color: var(--primary-orange);
            padding-left: 25px;
        }

        .dropdown-menu a::after {
            display: none;
        }

        .social-icons a {
            width: 36px;
            height: 36px;
            background: #333;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: 0.3s;
            color: #fff;
        }

        .btn:hover {
            background: var(--primary-hover);
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(255, 102, 0, 0.4);
            color: #fff;
            border: none;
        }

        .social-icons a:hover {
            background: var(--primary-orange);
            transform: rotate(360deg);
        }

        .copyright {
            text-align: center;
            padding-top: 30px;
            color: #666;
            font-size: 13px;
        }

        .sidebar-box p {
            line-height: 2;
            color: #333;
            font-size: 14px;
        }
    


/* ========================================
   About2 页面响应式优化
   ======================================== */

/* 平板及以下 (< 1024px) */
@media (max-width: 1024px) {
    .main-container {
        grid-template-columns: 1fr;
        padding: 30px 20px;
    }
    
    aside {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .factory-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
}

/* 手机端 (< 640px) */
@media (max-width: 640px) {
    .main-container {
        padding: 20px 15px;
    }
    
    aside {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .sidebar-box {
        margin-bottom: 15px;
    }
    
    .sidebar-title {
        font-size: 16px;
        padding: 12px;
    }
    
    .sidebar-menu li {
        padding: 12px 15px;
        font-size: 13px;
    }
    
    .sidebar-box p,
    .sidebar-box h4 {
        font-size: 12px;
    }
    
    .factory-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .card-label {
        font-size: 13px;
        padding: 10px;
    }
    
    .pagination {
        gap: 5px;
    }
    
    .pagination span {
        width: 28px;
        height: 28px;
        font-size: 12px;
    }
}


/* 优化的工厂卡片样式 */
.factory-card {
    background: white;
    border-radius: 0;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    cursor: pointer;
}

.factory-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

.factory-card-image {
    width: 100%;
    /* height: 180px; */
    overflow: hidden;
    background: #f5f5f5;
    position: relative;
}

.factory-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.factory-card:hover .factory-card-image img {
    transform: scale(1.05);
}

.factory-card-label {
    padding: 8px 12px;
    text-align: center;
    font-size: 13px;
    font-weight: 500;
    color: #333;
    background: white;
}

/* 优化的分页容器 */
.pagination-container {
    width: 100%;
    display: flex;
    justify-content: center;
    margin: 40px 0 20px 0;
}

.pagination {
    display: flex;
    gap: 8px;
    align-items: center;
}

.pagination .page-link {
    min-width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #ddd;
    border-radius: 4px;
    background: white;
    color: #333;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.2s ease;
    cursor: pointer;
}

.pagination .page-link:hover {
    background: #f5f5f5;
    border-color: #999;
}

.pagination .page-link.active {
    background: var(--primary-orange, #ff6b35);
    color: white;
    border-color: var(--primary-orange, #ff6b35);
}

/* 响应式优化 */
@media (max-width: 768px) {
    .factory-card-image {
        height: 150px;
    }
    
    .factory-card-label {
        padding: 6px 10px;
        font-size: 12px;
    }
    
    .pagination .page-link {
        min-width: 36px;
        height: 36px;
        font-size: 13px;
    }
}