/* 基础重置和全局样式 */
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        body {
            margin: 0;
            padding: 0;
            font-size: 1rem;
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            line-height: 1.6;
            color: #333;
        }

        .container {
            width: 70%;
            margin: 0 auto;
        }

        /* 顶部通知栏 */
        .top-bar {
            height: 3.167rem; /* 38pt / 12 */
            background: #f1f1f1;
        }

        .top-bar .nav {
            font-size: 0.8rem;
            color: #999;
            line-height: 3.167rem; /* 38pt / 12 */
            display: flex;
            justify-content: space-between;
        }

        /* 主导航 */
        .main-nav {
            margin: 0.833rem auto; /* 10pt / 12 */
            display: flex;
            justify-content: space-between;
            align-items: center;
            position: relative;
        }

        .logo {
            width: 6.667rem; /* 80pt / 12 */
        }

        .nav-menu {
            list-style: none;
            padding: 0;
            display: flex;
            font-size: 0.917rem; /* 11pt / 12 */
            color: #666;
            margin: 4.167rem 0 0; /* 50pt / 12 */
        }

        .nav-menu li {
            padding: 0 1.333rem; /* 16pt / 12 */
        }

        .nav-menu a {
            text-decoration: none;
            color: inherit;
            transition: color 0.3s;
        }

        .nav-menu a:hover {
            color: #0048B1;
        }

        /* 汉堡菜单按钮 */
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: #666;
            padding: 5px;
        }

        /* 英雄横幅 */
        .hero-banner {
            background: #0048B1;
            height: 21.667rem; /* 260pt / 12 */
            color: #f1f1f1;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            font-size: 2rem; /* 24pt / 12 */
            line-height: 4rem; /* 48pt / 12 */
            position: relative;
            overflow: hidden;
        }

        .contact-info div {
            margin: 0.417rem 0; /* 5pt / 12 */
        }

        /* 内容区域通用样式 */
        .section-header {
            text-align: center;
            margin: 1.667rem 0; /* 20pt / 12 */
        }

        .section-title {
            padding: 0.417rem; /* 5pt / 12 */
            margin: 0 auto;
            border-bottom: 0.25rem solid #0048B1; /* 3pt / 12 */
            font-size: 1.833rem; /* 22pt / 12 */
            display: inline-block;
            color: #0048B1;
        }

        /* 商品展示区域 */
        .products-grid {
            padding: 2.5rem 0; /* 30pt / 12 */
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
        }

        .products-grid img {
            margin: 0.833rem; /* 10pt / 12 */
            max-width: 120px;
            height: auto;
            transition: transform 0.3s;
        }

        .products-grid img:hover {
            transform: scale(1.05);
        }

        /* 解决方案区域 */
        .solutions-grid {
            padding: 2.5rem 0; /* 30pt / 12 */
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
        }

        .solution-card {
            width: 20%;
            box-shadow: 0 0 15px rgba(0,0,0,0.1);
            padding: 1.667rem; /* 20pt / 12 */
            margin-bottom: 1.667rem; /* 20pt / 12 */
            background: white;
            border-radius: 8px;
            transition: transform 0.3s, box-shadow 0.3s;
        }

        .solution-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 5px 20px rgba(0,0,0,0.15);
        }

        .solution-card img {
            width: 100%;
            height: auto;
            display: block;
            margin: 0 auto;
        }

        .solution-card h3 {
            font-size: 1.333rem; /* 16pt / 12 */
            margin: 1.25rem 0 0.833rem; /* 15pt 0 10pt / 12 */
            color: #333;
            text-align: center;
        }

        .solution-card p {
            font-size: 0.875rem; /* 10.5pt / 12 */
            color: #666;
            line-height: 1.5rem; /* 18pt / 12 */
            margin: 0;
            text-align: justify;
        }

        /* 关于我们区域 */
        .about-content {
            padding: 2.5rem; /* 30pt / 12 */
            margin-top: 2.5rem; /* 30pt / 12 */
            box-shadow: 0 0 15px rgba(0,0,0,0.1);
            font-size: 0.958rem; /* 11.5pt / 12 */
            background: white;
            color: #666;
            border-radius: 8px;
        }

        .about-content p {
            margin: 1.25rem 0; /* 15pt / 12 */
            text-indent: 2em;
            line-height: 1.8;
        }

        /* 页脚 */
        .footer {
            background: #f1f1f1;
            padding: 1.667rem 0; /* 20pt / 12 */
            margin-top: 3rem;
        }

        .footer-content {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
        }

        .contact-section {
            flex: 1;
            min-width: 300px;
        }

        .phone-number {
            font-size: 1.333rem; /* 16pt / 12 */
            padding: 0.833rem 0; /* 10pt / 12 */
            margin: 0;
            color: #0048B1;
            font-weight: bold;
        }

        .qr-section {
            flex: 1;
            min-width: 300px;
            text-align: center;
        }

        .qr-label {
            font-size: 1rem; /* 12pt / 12 */
            padding: 0.833rem 0; /* 10pt / 12 */
            color: #666;
        }

        .qr-code {
            width: 8.333rem; /* 100pt / 12 */
            height: 8.333rem; /* 100pt / 12 */
            border-radius: 8px;
            box-shadow: 0 0 10px rgba(0,0,0,0.1);
        }

        .qr-text {
            font-size: 0.833rem; /* 10pt / 12 */
            padding: 0.833rem 0; /* 10pt / 12 */
            color: #666;
        }

        .copyright {
            font-size: 0.833rem; /* 10pt / 12 */
            text-align: center;
            margin-top: 1.667rem; /* 20pt / 12 */
            padding: 0.417rem 0; /* 5pt / 12 */
            border-top: 1px solid #e1e1e1;
            color: #999;
        }

        .copyright a {
            text-decoration: none;
            color: inherit;
            font-size: 0.833rem; /* 10pt / 12 */
            transition: color 0.3s;
        }

        .copyright a:hover {
            color: #0048B1;
        }
		/* 热点新闻模块样式 */
        .hot-news {
            background: #f8f9fa;
            padding: 15px 0;
            border-bottom: 1px solid #eaeaea;
        }
        
        .hot-news-container {
            width: 70%;
            margin: 0 auto;
            display: flex;
            align-items: center;
        }
        
        .hot-news-label {
            
            padding: 5px 10px;
            border-radius: 3px;
            font-size: 0.85rem;
            margin-right: 15px;
            white-space: nowrap;
        }
        
        .hot-news-content {
            flex: 1;
            position: relative;
            height: 24px;
            overflow: hidden;
        }
        
        .hot-news-list {
            position: absolute;
            width: 100%;
            transition: transform 0.5s ease;
        }
        
        .hot-news-item {
            height: 24px;
            line-height: 24px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            font-size: 0.9rem;
            color: #333;
        }
        
        .hot-news-item a {
            color: #333;
            text-decoration: none;
            transition: color 0.3s;
        }
        
        .hot-news-item a:hover {
            color: #0048B1;
        }

        /* ================================
           移动端适配样式
           ================================ */

        @media (max-width: 1200px) {
            .container {
                width: 85%;
            }

            .solution-card {
                width: 22%;
            }
        }

        @media (max-width: 992px) {
            .container {
                width: 90%;
            }

            .solution-card {
                width: 45%;
                margin: 10px auto;
            }

            .products-grid img {
                max-width: 100%;
            }
        }

        @media (max-width: 768px) {
            .container {
                width: 95%;
                padding: 0 10px;
            }

            /* 顶部通知栏优化 */
            .top-bar {
                height: auto;
                padding: 8px 0;
            }

            .top-bar .nav {
                flex-direction: column;
                line-height: 1.4;
                text-align: center;
                font-size: 0.75rem;
            }

            .top-bar .nav span {
                margin: 2px 0;
            }

            /* 主导航优化 */
            .main-nav {
                margin: 10px auto;
                position: relative;
                padding: 10px 0;
                flex-wrap: wrap;
            }

            .logo {
                width: 100px;
                margin: 0 auto;
            }

            /* 汉堡菜单按钮 */
            .menu-toggle {
                display: block;
                position: absolute;
                right: 15px;
                top: 15px;
                z-index: 1001;
            }

            .nav-menu {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: white;
                box-shadow: 0 2px 10px rgba(0,0,0,0.1);
                z-index: 1000;
                margin: 0;
                flex-direction: column;
                padding: 10px 0;
            }

            .nav-menu.active {
                display: flex;
            }

            .nav-menu li {
                padding: 12px 20px;
                border-bottom: 1px solid #f1f1f1;
                text-align: center;
                margin: 0;
            }

            .nav-menu a {
                display: block;
                padding: 8px 0;
                font-size: 1rem;
            }

            /* 英雄横幅优化 */
            .hero-banner {
                height: auto;
                min-height: 200px;
                padding: 30px 20px;
                font-size: 1.2rem;
                line-height: 1.8;
                text-align: center;
            }

            .contact-info div {
                margin: 8px 0;
                font-size: 1rem;
            }

            /* 产品网格优化 */
            .products-grid {
                padding: 20px 0;
                justify-content: center;
            }

            .products-grid img {
                width: 45%;
                margin: 8px;
                max-width: 120px;
            }

            /* 解决方案卡片优化 */
            .solutions-grid {
                padding: 20px 0;
            }

            .solution-card {
                width: 100%;
                margin: 0 0 20px 0;
                padding: 20px;
                box-sizing: border-box;
            }

            .solution-card img {
                width: 100%;
                margin: 0 auto 15px;
                display: block;
            }

            .solution-card h3 {
                font-size: 1.2rem;
                text-align: center;
                margin: 10px 0;
            }

            .solution-card p {
                font-size: 0.9rem;
                text-align: justify;
                line-height: 1.5;
            }

            /* 关于我们优化 */
            .about-content {
                padding: 20px;
                margin-top: 20px;
                font-size: 0.9rem;
            }

            .about-content p {
                margin: 15px 0;
                text-indent: 2em;
                line-height: 1.6;
            }

            /* 页脚优化 */
            .footer {
                padding: 20px 0;
            }

            .footer-content {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }

            .contact-section,
            .qr-section {
                margin-bottom: 20px;
                width: 100%;
            }

            .phone-number {
                font-size: 1.1rem;
            }

            .qr-code {
                width: 120px;
                height: 120px;
            }

            .copyright {
                margin-top: 15px;
                padding-top: 15px;
                font-size: 0.8rem;
            }
			.hot-news-container {
                width: 95%;
            }
            
            .hot-news-label {
                font-size: 0.8rem;
                padding: 4px 8px;
                margin-right: 10px;
            }
            
            .hot-news-item {
                font-size: 0.85rem;
            }
        }

        /* 超小屏幕优化（小于480px） */
        @media (max-width: 480px) {
            .container {
                width: 100%;
                padding: 0 15px;
            }

            .hero-banner {
                min-height: 150px;
                padding: 20px 15px;
                font-size: 1rem;
            }

            .section-title {
                font-size: 1.3rem;
                padding: 8px 0;
            }

            .products-grid img {
                width: 42%;
                margin: 5px;
            }

            .solution-card {
                padding: 15px;
                margin-bottom: 15px;
            }

            .about-content {
                padding: 15px;
                margin-top: 15px;
            }

            .nav-menu li {
                padding: 10px 15px;
            }

            .footer-content {
                padding: 0 10px;
            }
			.hot-news {
                padding: 10px 0;
            }
            
            .hot-news-label {
                font-size: 0.75rem;
                padding: 3px 6px;
            }
            
            .hot-news-item {
                font-size: 0.8rem;
            }
        }

        /* 横屏模式优化 */
        @media (max-width: 768px) and (orientation: landscape) {
            .hero-banner {
                min-height: 120px;
                padding: 15px 20px;
            }

            .nav-menu {
                max-height: 200px;
                overflow-y: auto;
            }
        }

        /* 防止横屏时字体过大 */
        @media (max-width: 768px) and (orientation: landscape) {
            html {
                -webkit-text-size-adjust: 100%;
            }
        }