:root {
            --primary-red: #e63946;       /* 顶部菜单栏红色 */
            --primary-blue: #457b9d;      /* 辅助蓝色 */
            --dark-bg: #121212;           /* 底部页脚黑色背景 */
			--dark: #1d3557;
            --light-bg: #f8f9fa;           /* 浅色背景 */
            --white: #ffffff;              /* 白色 */
            --gray: #6c757d;               /* 灰色文字 */
            --shadow: 0 5px 15px rgba(0,0,0,0.1); /* 阴影效果 */
            --transition: all 0.3s ease;   /* 过渡效果 */
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: var(--light-bg);
        }
        
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        
        .container {
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        
        /* ===== 顶部菜单栏（红色底色）===== */
        header {
            background-color: var(--primary-red);
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        
        .top-bar {
            background-color: rgba(0,0,0,0.1);
            color: var(--white);
            padding: 8px 0;
            font-size: 14px;
        }
        
        .top-bar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .contact-info span {
            margin-right: 20px;
        }
        
        .social-icons a {
            color: var(--white);
            margin-left: 15px;
            font-size: 16px;
        }
        
        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        
        .logo {
            display: flex;
            align-items: center;
        }
		
		        
        .logo img {
            height: 50px;
            margin-right: 10px;
        }
        
        .logo h1 {
            font-size: 24px;
            color: var(--white);
            font-weight: 700;
        }
        
        .logo span {
            color: rgba(255,255,255,0.8);
        }
        
        .nav-menu {
            display: flex;
            list-style: none;
        }
        
        .nav-menu li {
            margin-left: 30px;
        }
        
        .nav-menu a {
            color: var(--white);
            font-weight: 600;
            position: relative;
            padding: 5px 0;
        }
        
        .nav-menu a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--white);
            transition: var(--transition);
        }
        
        .nav-menu a:hover::after {
            width: 100%;
        }
        
        .mobile-toggle {
            display: none;
            color: var(--white);
            font-size: 24px;
            cursor: pointer;
        }
        
        /* ===== 英雄区域 ===== */
        .hero {
            background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), url('http://en.bjkse.com/skin/images/zhanhuibeijing.jpg');
            background-size: cover;
            background-position: center;
            height: 80vh;
            display: flex;
            align-items: center;
            color: var(--white);
            text-align: center;
        }
        
        .hero-content {
            max-width: 800px;
            margin: 0 auto;
        }
        
        .hero h2 {
            font-size: 3rem;
            margin-bottom: 20px;
            text-transform: uppercase;
            letter-spacing: 2px;
        }
        
        .hero p {
            font-size: 1.2rem;
            margin-bottom: 30px;
        }
        
        .btn {
            display: inline-block;
            padding: 12px 30px;
            background-color: var(--primary-red);
            color: var(--white);
            border-radius: 30px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        
        .btn:hover {
            background-color: #c1121f;
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
        }
        
        .btn-secondary {
            background-color: transparent;
            border: 2px solid var(--white);
            margin-left: 15px;
        }
        
        .btn-secondary:hover {
            background-color: var(--white);
            color: var(--primary-red);
        }
        
        /* ===== 展会倒计时 ===== */
        .countdown-section {
            background-color: var(--primary-blue);
            color: var(--white);
            padding: 40px 0;
            text-align: center;
        }
        
        .countdown-title {
            font-size: 1.8rem;
            margin-bottom: 20px;
        }
        
        .countdown-container {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }
        
        .countdown-item {
            background-color: rgba(255,255,255,0.1);
            border-radius: 10px;
            padding: 20px;
            min-width: 100px;
        }
        
        .countdown-number {
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 5px;
        }
        
        .countdown-label {
            font-size: 1rem;
            opacity: 0.8;
        }
        
        /* ===== 通用区块样式 ===== */
        section {
            padding: 80px 0;
        }
        
        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }
        
        .section-header h2 {
            font-size: 2.5rem;
            color: var(--primary-blue);
            position: relative;
            display: inline-block;
            padding-bottom: 15px;
        }
        
        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 80px;
            height: 4px;
            background-color: var(--primary-red);
        }
        
        .section-header p {
            color: var(--gray);
            max-width: 700px;
            margin: 20px auto 0;
        }
        
        /* ===== 展会信息 ===== */
        .about-content {
            display: flex;
            gap: 40px;
            align-items: center;
        }
        
        .about-text {
            flex: 1;
        }
        
        .about-text h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
            color: var(--primary-blue);
        }
        
        .about-text p {
            margin-bottom: 15px;
            color: #555;
        }
        
        .about-image {
            flex: 1;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        
        .about-image img {
            width: 100%;
            height: auto;
            display: block;
        }
		
		 .stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 40px;
        }
        
        .stat-item {
            text-align: center;
            padding: 20px;
            background-color: white;
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.05);
        }
        
        .stat-item i {
            font-size: 2.5rem;
            color: var(--primary-red);
            margin-bottom: 15px;
        }
        
        .stat-item .number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 5px;
        }        
        
        /* ===== 参展品牌滚动显示 ===== */
        .brands-section {
            background-color: var(--white);
            padding: 60px 0;
        }
        
        .brands-container {
            overflow: hidden;
            position: relative;
            padding: 20px 0;
        }
        
        .brands-scroll {
            display: flex;
            animation: scroll 30s linear infinite;
        }
        
        .brand-item {
            flex: 0 0 auto;
            width: 180px;
            height: 100px;
            margin: 0 30px;
            display: flex;
            align-items: center;
            justify-content: center;
            background-color: var(--light-bg);
            border-radius: 8px;
            box-shadow: var(--shadow);
            padding: 15px;
        }
        
        .brand-item img {
            max-width: 100%;
            max-height: 70px;
            filter: grayscale(100%);
            transition: var(--transition);
        }
        
        .brand-item:hover img {
            filter: grayscale(0);
        }
        
        @keyframes scroll {
            0% { transform: translateX(0); }
            100% { transform: translateX(-50%); }
        }
        
        /* ===== 展会优势特色 ===== */
        .advantages {
            background-color: var(--light-bg);
            padding: 60px 0;
        }
        
        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }
        
        .advantage-card {
            background-color: var(--white);
            border-radius: 10px;
            padding: 30px;
            text-align: center;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        
        .advantage-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        }
        
        .advantage-icon {
            width: 80px;
            height: 80px;
            background-color: rgba(230, 57, 70, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
        }
        
        .advantage-icon i {
            font-size: 36px;
            color: var(--primary-red);
        }
        
        .advantage-card h3 {
            margin-bottom: 15px;
            color: var(--primary-blue);
        }
        
        .advantage-card p {
            color: var(--gray);
            font-size: 0.95rem;
        }
        
        /* ===== 展会现场图片轮播 ===== */
        .gallery-section {
            background-color: var(--white);
            padding: 60px 0;
        }
        
        .gallery-container {
            position: relative;
            max-width: 900px;
            margin: 0 auto;
            overflow: hidden;
            border-radius: 10px;
            box-shadow: var(--shadow);
        }
        
        .gallery-slides {
            display: flex;
            transition: transform 0.5s ease;
        }
        
        .gallery-slide {
            min-width: 100%;
        }
        
        .gallery-slide img {
            width: 100%;
            height: 400px;
            object-fit: cover;
            display: block;
        }
        
        .gallery-controls {
            position: absolute;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: 10px;
        }
        
        .gallery-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background-color: rgba(255,255,255,0.5);
            cursor: pointer;
            transition: var(--transition);
        }
        
        .gallery-dot.active {
            background-color: var(--white);
        }
        
        .gallery-nav {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            width: 100%;
            display: flex;
            justify-content: space-between;
            padding: 0 20px;
        }
        
        .gallery-btn {
            background-color: rgba(0,0,0,0.5);
            color: var(--white);
            border: none;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
        }
        
        .gallery-btn:hover {
            background-color: var(--primary-red);
        }
        
        /* ===== 日程安排 ===== */
        .schedule {
            background-color: var(--light-bg);
        }
        
        .schedule-tabs {
            display: flex;
            justify-content: center;
            margin-bottom: 30px;
        }
        
        .tab-btn {
            padding: 10px 25px;
            background-color: var(--white);
            border: none;
            border-bottom: 3px solid transparent;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            color: var(--gray);
        }
        
        .tab-btn.active, .tab-btn:hover {
            border-bottom: 3px solid var(--primary-red);
            color: var(--primary-red);
        }
        
        .schedule-content {
            background-color: var(--white);
            border-radius: 10px;
            box-shadow: var(--shadow);
            padding: 30px;
        }
        
        .day-schedule {
            display: none;
        }
        
        .day-schedule.active {
            display: block;
        }
        
        .event-item {
            display: flex;
            padding: 20px 0;
            border-bottom: 1px solid #eee;
        }
        
        .event-time {
            min-width: 120px;
            font-weight: 600;
            color: var(--primary-blue);
        }
        
        .event-details h4 {
            margin-bottom: 5px;
            color: #333;
        }
        
        .event-details p {
            color: var(--gray);
        }
        
        /* ===== 同期活动 ===== */
        .events-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .event-card {
            background-color: var(--white);
            border-radius: 10px;
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: transform 0.3s ease;
        }
        
        .event-card:hover {
            transform: translateY(-10px);
        }
        
        .event-img {
            height: 200px;
            overflow: hidden;
        }
        
        .event-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .event-card:hover .event-img img {
            transform: scale(1.1);
        }
        
        .event-content {
            padding: 20px;
        }
        
        .event-content h3 {
            margin-bottom: 10px;
            color: var(--primary-blue);
        }
        
        .event-meta {
            display: flex;
            margin-bottom: 15px;
            color: var(--gray);
            font-size: 14px;
        }
        
        .event-meta div {
            margin-right: 15px;
        }
        
        .event-meta i {
            margin-right: 5px;
            color: var(--primary-red);
        }
        
        /* ===== 参展类别 ===== */
        .categories-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
        }
        
        .category-card {
            background-color: var(--white);
            border-radius: 10px;
            padding: 30px;
            text-align: center;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }
        
        .category-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        }
        
        .category-icon {
            width: 80px;
            height: 80px;
            background-color: rgba(69, 123, 157, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
        }
        
        .category-icon i {
            font-size: 36px;
            color: var(--primary-blue);
        }
        
        .category-card h3 {
            margin-bottom: 15px;
            color: var(--primary-blue);
        }
        
        /* ===== 展会视频 ===== */
        .video-container {
            position: relative;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: var(--shadow);
            height: 500px;
        }
        
        .video-container iframe {
            width: 100%;
            height: 100%;
            border: none;
        }
        
        /* ===== 参观注册 ===== */
        .registration-form {
            background-color: var(--white);
            border-radius: 10px;
            box-shadow: var(--shadow);
            padding: 40px;
            max-width: 800px;
            margin: 0 auto;
        }
        
        .form-group {
            margin-bottom: 20px;
        }
        
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: var(--primary-blue);
        }
        
        .form-control {
            width: 100%;
            padding: 12px 15px;
            border: 1px solid #ddd;
            border-radius: 5px;
            font-size: 16px;
            transition: border-color 0.3s ease;
        }
        
        .form-control:focus {
            border-color: var(--primary-red);
            outline: none;
        }
        
        .form-row {
            display: flex;
            gap: 20px;
        }
        
        .form-row .form-group {
            flex: 1;
        }
        
        /* ===== 联系方式 ===== */
        .contact-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 40px;
        }
        
        .contact-info {
            background-color: var(--white);
            border-radius: 10px;
            padding: 30px;
            box-shadow: var(--shadow);
        }
        
        .contact-item {
            display: flex;
            margin-bottom: 25px;
        }
        
        .contact-icon {
            min-width: 50px;
            height: 50px;
            background-color: rgba(69, 123, 157, 0.1);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 15px;
        }
        
        .contact-icon i {
            font-size: 20px;
            color: var(--primary-blue);
        }
        
        .contact-details h4 {
            margin-bottom: 5px;
            color: var(--primary-blue);
        }
        
        .map-container {
            height: 400px;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        
        .map-container iframe {
            width: 100%;
            height: 100%;
            border: none;
        }
        
        /* ===== 底部页脚（黑色背景）===== */
        footer {
            background-color: var(--dark-bg);
            color: var(--white);
            padding: 60px 0 20px;
        }
        
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        
        .footer-column h3 {
            font-size: 1.3rem;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        
        .footer-column h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 50px;
            height: 2px;
            background-color: var(--primary-red);
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 10px;
        }
        
        .footer-links a {
            color: #ccc;
        }
        
        .footer-links a:hover {
            color: var(--white);
            padding-left: 5px;
        }
        
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
            font-size: 14px;
            color: #aaa;
        }
		
		
		/*topBtn*/
.topBtn {float:right;padding:27px 0;}
.topBtn .btn {width:25px;height:21px;float:left;cursor:pointer;}
.schBtn {background:url(../images/icon_search.png) no-repeat center center;background-size:contain;}
.navBtn {position:relative;display:none;margin-left:20px;}
.navBtn span {width:100%;height:2px;background-color:#555;position:absolute;left:0;top:50%;margin-top:-2px;}
.navBtn span:before,.navBtn span:after {width:100%;height:2px;background-color:#555;content:'';display:block;position:absolute;left:0;transition:all 0.3s;}
.navBtn span:before {top:-8px;}
.navBtn span:after {bottom:-8px;}
.navBtn.open span {height:0;}
.navBtn.open span:before {transform:rotate(45deg);top:0;}
.navBtn.open span:after {transform:rotate(-45deg);bottom:auto;top:0;}
		
		/* 语言切换按钮容器 */
        .language-switcher {
            position: relative;
            display: inline-block;float: left;padding: 23px 10px 0 0;
			
        }

        /* 语言切换按钮 */
        .language-btn {
            display: flex;
            border-radius: 4px;
            cursor: pointer;
            gap: 5px;
            font-size: 14px;
            color: #FFF;
        }

        .language-btn .globe-icon {
            font-size: 16px;
        }

        .language-btn .arrow-icon {
            margin-left: 5px;
            transition: transform 0.3s;
        }
		.language-list .hidden{ display:none}

        /* 下拉框容器 */
        .language-dropdown {
            position: absolute;
            top: calc(100% + 5px);
            right: 0;
            background: #fff;
            border: 1px solid #ddd;
            border-radius: 4px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            display: none;
            z-index: 1000;
			width:400px;
        }

        /* 语言列表 */
        .language-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 5px;
            padding: 10px;
            max-height: 230px;
            overflow-y: auto;
        }

        /* 语言选项 */
        .language-item {
            display: flex;
            align-items: center;
            padding: 6px 8px;
            cursor: pointer;
            border-radius: 4px;
            gap: 5px;
            font-size: 13px;
            color: #333;
			    height: 30px;overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
        }
		.language-item a{overflow: hidden;white-space: nowrap;text-overflow: ellipsis;}
        .language-item:hover {
            background: #f5f5f5;
        }

        .language-item img {
            width: 16px;
            height: 12px;
            object-fit: cover;
        }

        /* More Language按钮 */
        .more-languages {
            text-align: center;
            padding: 8px;
            border-top: 1px solid #eee;
            cursor: pointer;
            color: #666;
            font-size: 13px;
            height: 40px;
            line-height: 40px;
        }

        .more-languages:hover {
            color: #333;
            background: #f5f5f5;
        }

        /* 展开状态 */
         .language-dropdown.active {
            display: block;
            background: white;
        }

        .language-list.show-all {
            max-height: 400px;
        }

        /* 滚动条样式 */
        .language-list::-webkit-scrollbar {
            width: 6px;
        }

        .language-list::-webkit-scrollbar-track {
            background: #f1f1f1;
        }

        .language-list::-webkit-scrollbar-thumb {
            background: #ccc;
            border-radius: 3px;
        }

        .language-list::-webkit-scrollbar-thumb:hover {
            background: #999;
        }
		
		
        
        /* ===== 响应式设计 ===== */
        @media (max-width: 992px) {
            .hero h2 {
                font-size: 2.5rem;
            }
            
            .about-content {
                flex-direction: column;
            }
            
			 .stats {
                grid-template-columns: repeat(2, 1fr);
            }
			
            .gallery-slide img {
                height: 300px;
            }
        }
        
        @media (max-width: 768px) {
            .mobile-toggle {
                display: block;
            }
            
            .nav-menu {
                position: fixed;
                top: 80px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 80px);
                background-color: var(--primary-red);
                flex-direction: column;
                align-items: center;
                padding-top: 40px;
                transition: var(--transition);
            }
            
            .nav-menu.active {
                left: 0;
            }
            
            .nav-menu li {
                margin: 15px 0;
            }
            
            .hero h2 {
                font-size: 2rem;
            }
            
            .hero p {
                font-size: 1rem;
            }
            
            .btn {
                display: block;
                margin: 10px auto;
                width: 80%;
                max-width: 250px;
            }
            
            .btn-secondary {
                margin-left: 0;
            }
            
            .form-row {
                flex-direction: column;
                gap: 0;
            }
            
            .countdown-item {
                min-width: 80px;
                padding: 15px;
            }
            
            .countdown-number {
                font-size: 2rem;
            }
            
            .brand-item {
                width: 150px;
                margin: 0 20px;
            }
			.language-switcher{ padding: 13px 10px 0 0 !important;}
	        .language-dropdown{width: 280% !important;left: -124% !important;}
	        .language-item{ padding: 0 !important;}
        }
        
        @media (max-width: 576px) {
            .top-bar .container {
                flex-direction: column;
                text-align: center;
            }
            
            .contact-info {
                margin-bottom: 10px;
            }
            
            .social-icons {
                margin-top: 10px;
            }
			
			 .stats {
                grid-template-columns: 1fr;
            }
            
            .hero {
                height: 70vh;
            }
            
            .hero h2 {
                font-size: 1.8rem;
            }
            
            .gallery-slide img {
                height: 250px;
            }
            
            .countdown-container {
                gap: 10px;
            }
            
            .countdown-item {
                min-width: 70px;
                padding: 10px;
            }
            
            .countdown-number {
                font-size: 1.8rem;
            }
        }