/* ===== 全局变量 ===== */
        :root {
            --primary-blue: #2563eb;
            --primary-dark: #1d4ed8;
            --primary-light: #dbeafe;
            --text-dark: #1e293b;
            --text-gray: #475569;
            --bg-light: #f8fafc;
            --border-light: #e2e8f0;
            --container-width: 1480px;
        }

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

        body {
            background-color: #ffffff;
            font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
            line-height: 1.6;
            color: var(--text-dark);
        }

        /* ===== Banner 通栏 ===== */
        .banner-section {
            width: 100%;
            background-color: #0f172a;
        }

        .vQrQB3-container {
            width: 100%;
            max-width: 100% !important;
            padding: 0 !important;
            margin: 0 !important;
        }

        .vQrQB3-c-item {
            width: 100%;
            height: auto;
            object-fit: cover;
            display: block;
            max-height: 550px;
        }

        @media (max-width: 768px) {
            .vQrQB3-c-item {
                max-height: 250px;
            }
        }

        /* ===== 内容容器 ===== */
        .container-1480 {
            width: 100%;
            max-width: 1480px;
            margin: 0 auto;
            padding: 0 30px;
        }

        .section-padding-top {
            padding-top: 50px;
        }

        .section-padding-bottom {
            padding-bottom: 70px;
        }

        .content-row {
            display: flex;
            flex-wrap: wrap;
            margin: 0 -15px;
        }

        .main-col {
            flex: 0 0 75%;
            max-width: 75%;
            padding: 0 15px;
        }

        .side-col {
            flex: 0 0 25%;
            max-width: 25%;
            padding: 0 15px;
        }

        h1.text-heading {
            font-size: 2.4rem;
            font-weight: 700;
            margin: 0 0 20px 0;
            color: var(--text-dark);
            line-height: 1.3;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-gray);
            font-size: 0.95rem;
            margin-bottom: 25px;
            padding-bottom: 15px;
            border-bottom: 1px solid var(--border-light);
        }

        .iconfonttime {
            color: var(--primary-blue);
            font-size: 1.1rem;
        }

        .section-rich-text {
            font-size: 1.05rem;
            color: var(--text-gray);
            margin-bottom: 40px;
        }

        .section-rich-text img {
            max-width: 100%;
            height: auto;
            margin: 25px 0;
            border-radius: 8px;
        }

        /* ===== 上下篇导航 ===== */
        .pagelink-item {
            display: flex;
            align-items: center;
            gap: 20px;
            background: var(--bg-light);
            padding: 22px 28px;
            margin: 15px 0;
            transition: all 0.3s ease;
            border-left: 4px solid transparent;
        }

        .pagelink-item:hover {
            background: #f1f5f9;
            border-left-color: var(--primary-blue);
        }

        .pagelink-icon i {
            font-size: 2rem;
            color: var(--primary-blue);
            opacity: 0.8;
        }

        .link-intro {
            font-size: 0.8rem;
            text-transform: uppercase;
            color: var(--text-gray);
            margin: 0 0 6px;
            font-weight: 500;
        }

        .pagelink-info a {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-dark);
            text-decoration: none;
            line-height: 1.4;
        }

        /* ===== 产品展示区 ===== */
        .product-grid-section {
            margin-top: 60px;
            margin-bottom: 30px;
        }

        .product-grid-section h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin: 0 0 30px 0;
            padding-bottom: 15px;
            border-bottom: 2px solid var(--border-light);
            position: relative;
        }

        .product-grid-section h2:after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 80px;
            height: 3px;
            background: var(--primary-blue);
        }

        .product-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 25px;
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .product-grid li {
            background: #ffffff;
            border: 1px solid var(--border-light);
            transition: all 0.3s ease;
        }

        .product-grid li:hover {
            transform: translateY(-6px);
            border-color: var(--primary-blue);
            box-shadow: 0 20px 30px -10px rgba(37,99,235,0.15);
        }

        .product-grid .product-image {
            aspect-ratio: 1;
            width: 100%;
            overflow: hidden;
            background: var(--bg-light);
        }

        .product-grid .product-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .product-grid .product-title {
            padding: 16px 12px;
            text-align: center;
        }

        .product-grid .product-title h3 {
            margin: 0;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-dark);
        }

        .product-grid .product-title h3 a {
            color: inherit;
            text-decoration: none;
        }

        /* ===== 右侧边栏 ===== */
        .author-card {
            background: var(--bg-light);
            padding: 30px 25px;
            margin-bottom: 25px;
            position: relative;
        }

        .author-card:before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary-blue), #7c3aed);
        }

        .author-avatar {
            width: 100px;
            height: 100px;
            margin: 0 auto 20px;
            border: 3px solid #ffffff;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
            border-radius: 50%;
            overflow: hidden;
        }

        .author-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .author-name {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--text-dark);
            text-align: center;
            margin-bottom: 10px;
        }

        .author-bio {
            font-size: 0.95rem;
            color: var(--text-gray);
            line-height: 1.7;
            text-align: center;
        }

        /* 询盘表单 */
        .sidebar-inquiry {
            background: #ffffff;
            padding: 35px 28px;
            margin-bottom: 30px;
            position: relative;
            box-shadow: 0 5px 20px rgba(0,0,0,0.02);
        }

        .sidebar-inquiry:before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary-blue), #7c3aed);
        }

        .sidebar-inquiry-title {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 25px;
            color: var(--text-dark);
        }

        .inquiry-form-sidebar {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .inquiry-form-sidebar .form-control {
            width: 100%;
            padding: 14px 18px;
            background: var(--bg-light);
            border: 1px solid var(--border-light) !important;
        }

        .sidebar-inquiry .btn-primary {
            background: var(--primary-blue);
            color: white;
            padding: 14px 24px;
            font-weight: 600;
            cursor: pointer;
            border: none;
            transition: all 0.3s ease;
        }

        /* ===== 响应式优化 ===== */
        @media (max-width: 1200px) {
            .product-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 992px) {
            .main-col, .side-col {
                flex: 0 0 100%;
                max-width: 100%;
            }
            .main-col {
                margin-bottom: 40px;
            }
            .product-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .container-1480 {
                padding: 0 20px;
            }
            h1.text-heading {
                font-size: 2rem;
            }
            .product-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 15px;
            }
        }

        /* 手机端核心优化：一行显示2个产品 */
        @media (max-width: 480px) {
            .product-grid {
                grid-template-columns: repeat(2, 1fr) !important; /* 强制两列布局 */
                gap: 10px; /* 缩小间距 */
            }
            .product-grid .product-title {
                padding: 10px 5px; /* 缩小文字边距 */
            }
            .product-grid .product-title h3 {
                font-size: 0.9rem; /* 稍微调小字体防止名字过长 */
            }
            .author-card, .sidebar-inquiry {
                padding: 25px 20px;
            }
        }

        .recent-posts-widget, .common-inquiry {
            display: none;
        }