:root {
      --bg-dark: #010308;
      --bg-light: #1a1508;
      --text: #fff;
      --gold: #FFD700;
    }
    #intro-overlay {
      position: fixed;
      top: 0;
      left: 0;
      width: 100vw;
      height: 100vh;
      background: var(--bg-dark);
      z-index: 999999;
      overflow: visible;
    }
    #intro-overlay #video-container {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      z-index: 1;
      overflow: visible;
      pointer-events: none;
    }
    #intro-overlay #intro-video {
      display: block;
      width: 100%;
      height: 100%;
      object-fit: cover;
      pointer-events: none;
    }
    /* 备用背景（视频加载前显示）*/
    #intro-overlay #video-container::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: #DC2626;
      z-index: -1;
    }
    #intro-overlay .vignette {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      pointer-events: none;
      z-index: 2;
    }
    #intro-overlay #main-text {
      position: absolute;
      top: 32%;
      left: 50%;
      transform: translate(-50%, -50%);
      text-align: center;
      z-index: 3;
      color: var(--text);
      font-size: 54px;
      font-weight: 700;
      white-space: nowrap;
      letter-spacing: 8px;
      text-shadow: 0 0 20px var(--gold), 0 0 40px #DAA520;
      width: 100%;
      opacity: 0;
      animation: centerGather 3.2s ease-out forwards;
    }
    /* PC端隐藏移动端换行符 */
    #intro-overlay #main-text .mobile-br { display: none; }
    #intro-overlay .info-wrapper {
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      width: 95%;
      max-width: 1400px;
      padding: 0 40px;
      display: flex;
      justify-content: space-around;
      align-items: center;
      z-index: 3;
      opacity: 0;
      animation: fadeUp 1.5s ease 3.3s forwards;
    }
    #intro-overlay .info-item {
      text-align: center;
    }
    #intro-overlay .info-item:nth-child(2) {
      transform: translateX(-10px);
    }
    #intro-overlay .info-title {
      font-size: 30px;
      font-weight: 600;
      color: var(--text);
      letter-spacing: 3px;
      text-shadow: 0 0 10px var(--gold), 0 0 20px #DAA520;
      margin-bottom: 8px;
      white-space: nowrap;
    }
    #intro-overlay .info-time {
      font-size: 24px;
      color: var(--text);
      letter-spacing: 2px;
      text-shadow: 0 0 8px var(--gold);
      white-space: nowrap;
    }
    #intro-overlay #enter-text {
      position: absolute;
      top: 72%;
      left: 50%;
      transform: translate(-50%, -50%);
      text-align: center;
      z-index: 3;
      color: var(--text);
      font-size: 28px;
      letter-spacing: 4px;
      text-shadow: 0 0 10px var(--gold);
      opacity: 0;
      animation: fadeIn 1s ease 4s forwards;
      padding: 15px 35px;
      border: 2px solid var(--gold);
      border-radius: 50px;
      cursor: pointer;
      transition: all 0.3s ease;
    }
    #intro-overlay #enter-text:hover {
      background: #fff;
      color: #d91e2e;
      border-color: #DAA520;
      text-shadow: 0 0 20px var(--gold), 0 0 40px #DAA520;
      box-shadow: 0 0 20px rgba(218, 165, 32, 0.6), 0 0 40px rgba(218, 165, 32, 0.4);
      transform: translate(-50%, -50%) scale(1.05);
    }
    #intro-overlay.hide {
      opacity: 0;
      visibility: hidden;
      transition: opacity 0.8s ease, visibility 0.8s ease;
    }
    @keyframes centerGather {
      0% { opacity: 0.3; transform: translate(-50%, -50%) scale(0.8); filter: blur(10px); letter-spacing: 50px; }
      100% { opacity: 1; transform: translate(-50%, -50%) scale(1); filter: blur(0); letter-spacing: 8px; }
    }
    @keyframes fadeUp {
      0% { opacity: 0; transform: translate(-50%, -40%); filter: blur(6px); }
      100% { opacity: 1; transform: translate(-50%, -50%); filter: blur(0); }
    }
    @keyframes fadeIn {
      0% { opacity:0; transform:translate(-50%, -40%); }
      100% { opacity:1; transform:translate(-50%, -50%); }
    }
    @media (max-width: 768px) {
      #intro-overlay #main-text { font-size: 28px; letter-spacing: 4px; top: 28%; white-space: normal; line-height: 1.4; margin-top: -80px; }
      #intro-overlay #main-text .mobile-br { display: block; content: ""; margin-bottom: 8px; }
      #intro-overlay .info-wrapper { flex-direction: column; gap: 30px; }
      #intro-overlay .info-title { font-size: 20px; }
      #intro-overlay .info-time { font-size: 16px; }
      #intro-overlay #enter-text { font-size: 18px; top: 75%; }
    }
    :root {
      --primary-blue: #0062AE;
      --primary-dark: #004A85;
      --primary-light: #0077CC;
      --accent-yellow: #FFCC00;
      --text-dark: #1A202C;
      --text-gray: #4A5568;
      --text-light: #718096;
      --bg-light: #F7FAFC;
      --bg-white: #FFFFFF;
      --border-color: #E2E8F0;
    }

    /* 滚动条控制策略 */
    html {
      /* 默认隐藏滚动条 */
      overflow: visible;
    }

    /* 显示滚动条时预留空间 */
    html.show-scrollbar {
      overflow-y: auto;
      scrollbar-gutter: stable;
    }
    
    * { margin: 0; padding: 0; box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body { font-family: 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, sans-serif; background: var(--bg-light); color: var(--text-dark); line-height: 1.6; }
    a { text-decoration: none; color: inherit; }

    /* 禁用页面滚动 */
    body.no-scroll {
      overflow: hidden;
    }
    
    /* PC端：合并顶部栏和导航栏为一行 */
    @media (min-width: 769px) {
      .top-bar {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 1000;
        background: transparent;
        border-bottom: 1px solid rgba(255, 255, 255, 0.2);
        height: 80px;
        display: flex;
        align-items: center;
        padding: 0 30px;
        transition: all 0.3s ease;
      }

      /* 顶部横幅深蓝色渐变遮罩 - 从上往下，200px高度，20%渐变到0% */
      .top-bar::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 200px;
        background: linear-gradient(to bottom, rgba(0, 98, 174, 0.2) 0%, rgba(0, 98, 174, 0) 100%);
        z-index: -1;
        pointer-events: none;
      }

      /* 滚动时添加白色背景 */
      .top-bar.scrolled {
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(10px);
        border-bottom: 1px solid var(--border-color);
      }

      /* 滚动时文字颜色变回深色 */
      .top-bar.scrolled .top-info-title {
        color: var(--text-dark);
        text-shadow: none;
      }

      .top-bar.scrolled .top-info-meta {
        color: var(--text-gray);
        text-shadow: none;
      }

      .top-bar.scrolled .top-info-meta .ri {
        color: #DC2626;
      }

      .top-bar.scrolled .nav-menu a {
        color: var(--text-dark);
        text-shadow: none;
      }

      .top-bar.scrolled .nav-menu a:hover,
      .top-bar.scrolled .nav-menu a.active {
        /* color: #DC2626; 已移除颜色变化 */
      }

      .top-bar.scrolled .nav-menu a::after {
        background: #DC2626;
      }
      
      /* 展会链接 - 圆角矩形描边（使用更高优先级选择器） */
      .top-bar .nav-menu .nav-exhibition a {
        padding: 8px 16px;
        border-radius: 20px;
        transition: all 0.3s ease;
      }
      
      .top-bar .nav-menu .nav-exhibition-blue a {
        border: 2px solid rgba(0, 98, 174, 0.6);
        background: rgba(0, 98, 174, 0.1);
        transition: all 0.3s ease;
      }
      
      .top-bar .nav-menu .nav-exhibition-blue a:hover {
        background: rgba(0, 98, 174, 0.45);
        border-color: rgba(0, 98, 174, 1);
        box-shadow: 0 4px 12px rgba(0, 98, 174, 0.35);
        transform: translateY(-2px);
      }
      
      .top-bar .nav-menu .nav-exhibition-red a {
        border: 2px solid rgba(196, 30, 58, 0.6);
        background: rgba(196, 30, 58, 0.1);
        transition: all 0.3s ease;
      }
      
      .top-bar .nav-menu .nav-exhibition-red a:hover {
        background: rgba(196, 30, 58, 0.45);
        border-color: rgba(196, 30, 58, 1);
        box-shadow: 0 4px 12px rgba(196, 30, 58, 0.35);
        transform: translateY(-2px);
      }
      
      .top-bar .nav-menu .nav-exhibition-green a {
        border: 2px solid rgba(46, 125, 50, 0.6);
        background: rgba(46, 125, 50, 0.1);
        transition: all 0.3s ease;
      }
      
      .top-bar .nav-menu .nav-exhibition-green a:hover {
        background: rgba(46, 125, 50, 0.45);
        border-color: rgba(46, 125, 50, 1);
        box-shadow: 0 4px 12px rgba(46, 125, 50, 0.35);
        transform: translateY(-2px);
      }
      
      /* 展会按钮悬停时不显示下划线 */
      .top-bar .nav-menu .nav-exhibition a:hover::after {
        width: 0;
        background: transparent;
      }
      
      .top-bar .container {
        max-width: none;
        margin: 0;
        padding: 0;
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
        height: 100%;
      }
      
      .top-bar::before,
      .top-bar::after {
        display: none;
      }
      
      /* 左侧区域：Logo + 展会信息 */
      .top-logo {
        padding: 0;
        flex-shrink: 0;
        z-index: 2;
        display: flex;
        align-items: center;
        gap: 20px;
      }
      
      .top-logo img {
        height: auto;
        width: auto;
        max-height: 60px;
        max-width: 180px;
        transition: filter 0.3s;
        display: block;
      }

      .logo-divider {
        width: 1px;
        height: 36px;
        background: rgba(255, 255, 255, 0.3);
        flex-shrink: 0;
      }

      .top-info-container {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
      }

      .top-info-title {
        font-size: 18px;
        color: #ffffff;
        font-weight: 700;
        white-space: nowrap;
        text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
      }

      .top-info-meta {
        display: flex;
        align-items: center;
        gap: 18px;
        font-size: 14px;
        color: #e0f2fe;
        font-weight: 400;
        text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
      }

      .top-info-meta .top-info-item {
        display: flex;
        align-items: center;
        gap: 6px;
        white-space: nowrap;
      }

      .top-info-meta .ri {
        color: #60a5fa;
        font-size: 14px;
      }
      
      /* 右侧区域：导航菜单 + 登记按钮 */
      .top-actions {
        display: flex;
        gap: 30px;
        flex-shrink: 0;
        z-index: 2;
        align-items: center;
      }
      
      .top-actions-buttons {
        display: flex;
        gap: 10px;
      }
      
      /* 只给登记按钮添加红色背景，不影响导航菜单 */
      .top-actions-buttons a {
        color: white;
        padding: 10px 22px;
        border-radius: 20px;
        background: #DC2626;
        transition: all 0.3s;
        font-weight: 600;
        font-size: 16px;
        cursor: pointer;
        white-space: nowrap;
        border: none;
      }

      .top-actions-buttons a:hover {
        background: #B91C1C;
        transform: translateY(-2px);
      }
      
      /* 移除 .top-actions a 的样式，避免影响导航菜单 */
      
      /* 导航菜单移到右侧，紧贴登记按钮左侧 */
      .navbar {
        position: static;
        z-index: 999;
        background: transparent;
        border: none;
        box-shadow: none;
        display: block;
      }
      
      .navbar::after {
        display: none;
      }
      
      .nav-container {
        max-width: none;
        margin: 0;
        padding: 0;
        display: flex;
        align-items: center;
      }
      
      .nav-menu {
        display: flex;
        list-style: none;
        justify-content: flex-end;
        gap: 0;
        margin: 0;
        padding: 0;
      }
      
      .nav-menu li {
        padding: 0;
        margin-right: 35px;
      }

      .nav-menu li:last-child {
        margin-right: 0;
      }

      .nav-menu a {
        color: #ffffff;
        display: inline-block;
        font-weight: 600;
        font-size: 17px;
        position: relative;
        padding: 12px 0;
        text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
      }

      .nav-menu a::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        width: 0;
        height: 2px;
        background: #f87171;
        transition: width 0.3s ease;
      }
      
      /* 展会链接 - 圆角矩形描边（使用更高优先级选择器） */
      .top-bar .nav-menu .nav-exhibition a {
        padding: 8px 16px;
        border-radius: 20px;
        transition: all 0.3s ease;
      }
      
      .top-bar .nav-menu .nav-exhibition-blue a {
        border: 2px solid rgba(0, 98, 174, 0.6);
        background: rgba(0, 98, 174, 0.1);
        transition: all 0.3s ease;
      }
      
      .top-bar .nav-menu .nav-exhibition-blue a:hover {
        background: rgba(0, 98, 174, 0.45);
        border-color: rgba(0, 98, 174, 1);
        box-shadow: 0 4px 12px rgba(0, 98, 174, 0.35);
        transform: translateY(-2px);
      }
      
      .top-bar .nav-menu .nav-exhibition-red a {
        border: 2px solid rgba(196, 30, 58, 0.6);
        background: rgba(196, 30, 58, 0.1);
        transition: all 0.3s ease;
      }
      
      .top-bar .nav-menu .nav-exhibition-red a:hover {
        background: rgba(196, 30, 58, 0.45);
        border-color: rgba(196, 30, 58, 1);
        box-shadow: 0 4px 12px rgba(196, 30, 58, 0.35);
        transform: translateY(-2px);
      }
      
      .top-bar .nav-menu .nav-exhibition-green a {
        border: 2px solid rgba(46, 125, 50, 0.6);
        background: rgba(46, 125, 50, 0.1);
        transition: all 0.3s ease;
      }
      
      .top-bar .nav-menu .nav-exhibition-green a:hover {
        background: rgba(46, 125, 50, 0.45);
        border-color: rgba(46, 125, 50, 1);
        box-shadow: 0 4px 12px rgba(46, 125, 50, 0.35);
        transform: translateY(-2px);
      }
      
      /* 展会按钮悬停时不显示下划线 */
      .top-bar .nav-menu .nav-exhibition a:hover::after {
        width: 0;
        background: transparent;
      }

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

      .nav-menu a:hover,
      .nav-menu a.active {
        /* color: #f87171; 已移除颜色变化 */
      }
      
      .mobile-menu-btn {
        display: none;
      }
      
      /* 隐藏移动端导航栏 */
      .navbar.mobile-only {
        display: none;
      }
      
      /* 调整 Hero 区域 */
      .hero-section {
        margin-top: 0;
        height: calc(100vh - 80px);
      }
    }
    
    /* 移动端：保持原有两行横幅样式 */
    @media (max-width: 768px) {
      /* 全局溢出控制 - 防止横向滚动 */
      html, body {
        overflow-x: hidden;
        width: 100%;
        max-width: 100%;
        position: relative;
      }
      /* 容器元素限制宽度 */
      .container, .nav-container, .about-container, .exhibitions-grid,
      .news-container, .partners-section .container,
      .section-header, .footer-content {
        max-width: 100%;
        box-sizing: border-box;
        width: 100%;
      }
      /* 所有块级元素默认不超出 */
      div, section, article, aside, main, header, footer, nav {
        max-width: 100%;
        box-sizing: border-box;
      }
      /* 图片和媒体元素限制宽度 */
      img, video, iframe, embed, object {
        max-width: 100%;
        height: auto;
      }

      /* 顶部栏 - 滚动时变化背景 */
      .top-bar {
        position: fixed;
        top: 35px;
        left: 0;
        right: 0;
        z-index: 1000;
        background: transparent;
        transition: none;
        width: 100%;
        max-width: 100%;
      }
      .top-bar::before {
        content: '';
        position: absolute;
        top: -35px;
        left: 0;
        right: 0;
        height: 35px;
        background: inherit;
        z-index: -1;
      }
      .top-bar.scrolled {
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(10px);
        box-shadow: 0 2px 10px rgba(0,0,0,0.1);
      }

      /* 滚动时移除文字阴影并恢复深色 */
      .top-bar.scrolled .top-info-title {
        color: var(--text-dark);
        text-shadow: none;
      }

      .top-bar.scrolled .top-info-meta {
        color: var(--text-gray);
        text-shadow: none;
      }

      .top-bar.scrolled .top-info-meta .ri {
        color: #DC2626;
      }

      .top-bar.scrolled .nav-menu a {
        color: var(--text-dark);
        text-shadow: none;
      }

      .top-bar.scrolled .nav-menu a:hover,
      .top-bar.scrolled .nav-menu a.active {
        /* color: #DC2626; 已移除颜色变化 */
      }

      .top-bar.scrolled .logo-divider {
        background: rgba(0,0,0,0.2);
      }
      .top-bar .container {
        max-width: 100%;
        margin: 0 auto;
        padding: 15px 20px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        position: relative;
        box-sizing: border-box;
      }
      /* 顶部栏和导航栏之间的分隔线 - 移动端隐藏 */
      .top-bar::after {
        display: none;
      }
      .top-bar.scrolled::after {
        display: none;
      }
      .top-logo {
        padding: 0;
        flex-shrink: 0;
        z-index: 2;
        display: flex;
        align-items: center;
        gap: 20px;
      }
      .top-logo img {
        height: auto;
        width: auto;
        max-height: 50px;
        max-width: 150px;
        transition: filter 0.3s;
        display: block;
      }
      /* Logo 和展会信息之间的分隔线 */
      .logo-divider {
        width: 1px;
        height: 35px;
        background: rgba(0,0,0,0.2);
        flex-shrink: 0;
      }
      .top-info-container {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        gap: 0px;
        z-index: 2;
      }
      /* 第一行：展会名称 */
      .top-info-title {
        font-size: 16px;
        color: var(--text-dark);
        font-weight: 600;
        text-shadow: 0 1px 2px rgba(0,0,0,0.1);
        white-space: nowrap;
      }
      /* 第二行：时间和地点 */
      .top-info-meta {
        display: flex;
        align-items: center;
        gap: 15px;
        font-size: 12px;
        color: var(--text-gray);
        font-weight: 400;
      }
      .top-info-meta .top-info-item {
        display: flex;
        align-items: center;
        gap: 5px;
        white-space: nowrap;
      }
      .top-info-meta .ri {
        color: #DC2626;
        font-size: 13px;
      }
      .top-actions {
        display: flex;
        gap: 15px;
        flex-shrink: 0;
        z-index: 2;
      }
      .top-actions a {
        color: white;
        padding: 8px 16px;
        border-radius: 25px;
        background: #DC2626;
        transition: all 0.3s;
        font-weight: 500;
        font-size: 12px;
        cursor: pointer;
        white-space: nowrap;
        border: none;
        text-shadow: 0 1px 2px rgba(0,0,0,0.2);
      }
      .top-actions a:hover {
        background: #B91C1C;
        transform: translateY(-2px);
      }
      
      /* 移动端隐藏 PC 导航栏 */
      .top-bar .navbar {
        display: none;
      }
      
      /* 移动端导航栏 - 滚动时变化背景 */
      .navbar.mobile-only {
        position: fixed;
        top: 105px;
        left: 0;
        right: 0;
        z-index: 999;
        background: transparent;
        display: block;
      }
      .navbar.mobile-only.scrolled {
        background: var(--bg-white);
        box-shadow: 0 2px 10px rgba(0,0,0,0.1);
      }
      /* 导航栏底部的分隔线 - 移动端隐藏 */
      .navbar.mobile-only::after {
        display: none;
      }
      .navbar.mobile-only.scrolled::after {
        display: none;
      }
      .nav-container {
        max-width: 100%;
        margin: 0 auto;
        padding: 0 15px;
        box-sizing: border-box;
        overflow-x: auto;
      }
      .nav-menu {
        display: flex;
        list-style: none;
        justify-content: flex-start;
        gap: 5px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
      }
      .nav-menu::-webkit-scrollbar {
        display: none;
      }
      .nav-menu li {
        padding: 18px 15px;
        flex-shrink: 0;
      }
      .nav-menu a {
        color: var(--text-dark);
        display: inline-block;
        font-weight: 600;
        font-size: 14px;
        position: relative;
        white-space: nowrap;
      }
      .nav-menu a::after {
        content: '';
        position: absolute;
        bottom: -2px;
        left: 0;
        width: 0;
        height: 1px;
        background: #DC2626;
        transition: width 0.3s ease;
      }
      
      /* 展会链接 - 圆角矩形描边（使用更高优先级选择器） */
      .top-bar .nav-menu .nav-exhibition a {
        padding: 8px 16px;
        border-radius: 20px;
        transition: all 0.3s ease;
      }
      
      .top-bar .nav-menu .nav-exhibition-blue a {
        border: 2px solid rgba(0, 98, 174, 0.6);
        background: rgba(0, 98, 174, 0.1);
      }
      
      .top-bar .nav-menu .nav-exhibition-blue a:hover {
        background: rgba(0, 98, 174, 0.2);
        border-color: rgba(0, 98, 174, 0.9);
      }
      
      .top-bar .nav-menu .nav-exhibition-red a {
        border: 2px solid rgba(196, 30, 58, 0.6);
        background: rgba(196, 30, 58, 0.1);
      }
      
      .top-bar .nav-menu .nav-exhibition-red a:hover {
        background: rgba(196, 30, 58, 0.2);
        border-color: rgba(196, 30, 58, 0.9);
      }
      
      .top-bar .nav-menu .nav-exhibition-green a {
        border: 2px solid rgba(46, 125, 50, 0.6);
        background: rgba(46, 125, 50, 0.1);
      }
      
      .top-bar .nav-menu .nav-exhibition-green a:hover {
        background: rgba(46, 125, 50, 0.2);
        border-color: rgba(46, 125, 50, 0.9);
      }
      .nav-menu a:hover::after {
        width: 100%;
      }
      .navbar.scrolled .nav-menu a {
        color: var(--text-dark);
      }
      
      /* 语言切换按钮样式 */
      .nav-menu .lang-switch {
        background: #2563EB;
        color: white !important;
        padding: 6px 12px;
        border-radius: 4px;
        font-weight: 600;
        transition: all 0.3s;
      }
      .nav-menu .lang-switch:hover {
        background: #1D4ED8;
        transform: translateY(-1px);
      }
      
      .mobile-menu-btn {
        display: block;
        background: none;
        border: none;
        color: var(--text-dark);
        font-size: 24px;
        cursor: pointer;
        padding: 15px;
      }

      /* 移动端 Hero 区域样式 */
      /* 关键修复：移动端海报容器始终可见，视频容器用 z-index 遮挡 */
      .hero-slider.hidden-during-video {
        opacity: 1;
      }
      /* 强制显示海报文字 - 覆盖全局hidden-during-video */
      .hero-slider.hidden-during-video .hero-slide.active .hidden-during-video {
        opacity: 1;
        visibility: visible;
      }
      .hero-slider.hidden-during-video .hero-content {
        visibility: visible;
        opacity: 1;
        z-index: 20;
      }
      .hero-slider.hidden-during-video .hero-text h1,
      .hero-slider.hidden-during-video .hero-text .subtitle,
      .hero-slider.hidden-during-video .hero-badge,
      .hero-slider.hidden-during-video .hero-btn {
        opacity: 1;
        visibility: visible;
        z-index: 21;
      }
      .hero-slide img { z-index: 0; }
      .hero-slide::after { z-index: 1; }
      /* 海报内容容器位置 */
      .hero-content {
        top: 0;
        left: 0;
        right: 0;
        margin-left: 0;
        padding: 80px 20px 0;
        width: 100%;
        max-width: 100%;
        height: 100%;
        align-items: flex-start;
      }
      .hero-slide .hero-text h1 {
        color: white;
        text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
        font-size: 28px;
        line-height: 1.4;
      }
      .hero-slide .hero-text .subtitle {
        color: white;
        text-shadow: 1px 1px 3px rgba(0,0,0,0.5);
        font-size: 15px;
      }
      .hero-slide .hero-meta-item {
        background: rgba(0,0,0,0.5);
        border-radius: 20px;
        padding: 8px 16px;
        color: white;
      }
      /* 移动端底部五个板块 - 横向排列 */
      .hero-features {
        flex-direction: row;
        height: auto;
        padding: 10px 5px;
      }
      .feature-item {
        flex: 1;
        min-width: 0;
        height: auto;
        padding: 8px 4px;
        flex-direction: column;
        gap: 4px;
      }
      .feature-row {
        display: flex;
        flex-direction: row;
        align-items: center;
        gap: 4px;
        justify-content: center;
      }
      .feature-icon {
        width: 24px;
        height: 24px;
        font-size: 14px;
      }
      .feature-icon i {
        font-size: 14px;
      }
      .feature-item h4 {
        font-size: 11px;
        line-height: 1.3;
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        margin: 0;
      }
      .feature-item h4 span {
        display: block;
      }
      .feature-en {
        font-size: 6px;
        display: block;
        white-space: nowrap;
        overflow: visible;
        text-overflow: ellipsis;
        margin: 0 auto;
        letter-spacing: 0;
        text-align: center;
      }

      .feature-content h3 {
        font-size: 16px;
      }
      .feature-content p {
        font-size: 13px;
      }

      /* 移动端展会系列板块 */
      .exhibitions-section {
        padding: 40px 0 0;
        margin-top: -40px;
        margin-bottom: 0;
        padding-bottom: 0;
      }
      
      /* 移动端间隔元素 - 参考PC端方式控制间距 */
      .section-spacer {
        height: 40px;
      }
      
      .exhibitions-grid {
        padding-bottom: 0;
        margin-bottom: 0;
      }
      .section-header {
        margin-bottom: 40px;
        padding: 0 20px;
      }
      .section-header h2 {
        font-size: 28px;
        margin-bottom: 10px;
      }
      .section-header p {
        font-size: 16px;
      }
      .exhibitions-grid {
        max-width: 100%;
        grid-template-columns: 1fr;
        gap: 30px;
        padding: 0 20px;
        padding-bottom: 0;
        margin-bottom: 0;
      }
      .exhibition-card {
        border-radius: 12px;
      }
      .exhibition-image {
        height: 200px;
      }
      .exhibition-content h3 {
        font-size: 20px;
        margin-bottom: 10px;
      }
      .exhibition-content p {
        font-size: 14px;
      }

      /* 移动端企业简介板块 */
      .about-section {
        padding: 40px 0;
      }
      .about-container {
        max-width: 100%;
        padding: 0 20px;
      }
      .about-main {
        grid-template-columns: 1fr;
        gap: 30px;
      }
      .about-main-image {
        height: 250px;
      }
      .about-content h2 {
        font-size: 28px;
        margin-bottom: 15px;
      }
      .about-content p {
        font-size: 16px;
        line-height: 1.8;
      }
      .about-stats-section {
        padding: 30px 20px;
      }
      .about-stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
      }
      .stat-item-number {
        font-size: 36px;
      }
      .stat-item-label {
        font-size: 16px;
      }
      .stat-item-unit {
        font-size: 12px;
      }
      
      /* 移动端强制显示海报文字 */
      .hero-content * {
        display: block;
        visibility: visible;
        opacity: 1;
      }
      .hero-content,
      .hero-text,
      .hero-content .hidden-during-video {
        z-index: 999999;
        position: relative;
      }
      .hero-slide img {
        z-index: 0;
      }
    }
    
    /* 默认样式（PC端 - 已在上面 @media (min-width: 769px) 中定义） */
    
    /* Hero 轮播海报 - 参考 fastenerfairglobal.com */
    .hero-section {
      position: relative;
      height: 100vh;
      overflow: visible;
      z-index: 1;
      /* 回退背景：当视频/轮播均不可用时的默认背景 */
      background: #1a1a2e center center / cover no-repeat;
    }
    /* 海报文字层：视频结束尾帧上方 */
    .hero-poster-text {
      position: absolute;
      inset: 0;
      z-index: 20;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      text-align: center;
      color: #fff;
      pointer-events: none;
      padding: 20px;
      box-sizing: border-box;
    }
    /* 海报内容块容器 */
    .poster-items-container {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 12px;
      max-width: 80%;
      animation: posterFadeIn 1s ease forwards;
    }
    /* 海报内容块通用 */
    .poster-item {
      pointer-events: auto;
      line-height: 1.4;
      text-shadow: 0 2px 12px rgba(0,0,0,0.5);
      transition: all 0.3s ease;
      margin: 0;
    }
    .poster-item.title {
      font-size: 48px;
      font-weight: 700;
      letter-spacing: 2px;
    }
    .poster-item.title.large { font-size: 52px; }
    .poster-item.title.medium { font-size: 40px; }
    .poster-item.title.small { font-size: 32px; }
    .poster-item.subtitle {
      font-size: 22px;
      opacity: 0.9;
      letter-spacing: 1px;
    }
    .poster-item.subtitle.large { font-size: 26px; }
    .poster-item.subtitle.medium { font-size: 20px; }
    .poster-item.subtitle.small { font-size: 16px; }
    .poster-item.text {
      font-size: 16px;
      opacity: 0.85;
    }
    .poster-item.text.large { font-size: 18px; }
    .poster-item.text.medium { font-size: 15px; }
    .poster-item.text.small { font-size: 13px; }
    .poster-item.underline { text-decoration: underline; }
    .poster-item.align-left { text-align: left; align-self: flex-start; }
    .poster-item.align-center { text-align: center; align-self: center; }
    .poster-item.align-right { text-align: right; align-self: flex-end; }
    /* 玻璃质感按钮 */
    .poster-item.button {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 14px 36px;
      border-radius: 50px;
      font-size: 16px;
      font-weight: 600;
      letter-spacing: 1px;
      cursor: pointer;
      border: 1px solid rgba(255,255,255,0.3);
      background: rgba(255,255,255,0.12);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      box-shadow: 0 4px 24px rgba(0,0,0,0.15), inset 0 1px 0 rgba(255,255,255,0.2);
      color: #fff;
      text-decoration: none;
      transition: all 0.3s ease;
      pointer-events: auto;
    }
    .poster-item.button:hover {
      background: rgba(255,255,255,0.22);
      box-shadow: 0 6px 32px rgba(0,0,0,0.25), inset 0 1px 0 rgba(255,255,255,0.3);
      transform: translateY(-1px);
    }
    .poster-item.button:active {
      transform: translateY(0);
      box-shadow: 0 2px 12px rgba(0,0,0,0.15);
    }
    .poster-item.button.large { padding: 16px 44px; font-size: 18px; }
    .poster-item.button.medium { padding: 12px 32px; font-size: 15px; }
    .poster-item.button.small { padding: 10px 24px; font-size: 13px; }
    /* 海报淡入动画 */
    @keyframes posterFadeIn {
      from { opacity: 0; transform: translateY(20px); }
      to { opacity: 1; transform: translateY(0); }
    }
    /* 移动端适配 */
    @media (max-width: 768px) {
      .poster-items-container { max-width: 90%; gap: 8px; }
      .poster-item.title { font-size: 28px; }
      .poster-item.title.large { font-size: 32px; }
      .poster-item.title.medium { font-size: 26px; }
      .poster-item.title.small { font-size: 22px; }
      .poster-item.subtitle { font-size: 16px; }
      .poster-item.subtitle.large { font-size: 18px; }
      .poster-item.subtitle.medium { font-size: 15px; }
      .poster-item.subtitle.small { font-size: 13px; }
      .poster-item.text { font-size: 14px; }
      .poster-item.button { padding: 10px 28px; font-size: 14px; }
      .poster-item.button.large { padding: 12px 34px; font-size: 16px; }
      .poster-item.button.medium { padding: 10px 26px; font-size: 13px; }
      .poster-item.button.small { padding: 8px 20px; font-size: 12px; }
    }
    .hero-slider {
      position: absolute;
      inset: 0;
    }
    .hero-slide {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      opacity: 0;
      z-index: 1;
      transition: opacity 1s ease;
    }
    .hero-slide.active {
      opacity: 1;
      z-index: 10;
    }
    .hero-slide img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      position: relative;
      z-index: 0;
    }
    /* 每个 slide 自带的黑色半透明遮罩 - 降低不透明度，让画面更亮 */
    .hero-slide::after {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 100%;
      z-index: 2;
      pointer-events: none;
      background: rgba(0, 0, 0, 0.3);
    }
    /* 海报内容 - 默认隐藏，只有 active 时显示 */
    .hero-content {
      position: absolute;
      top: -115px;
      left: 50%;
      right: auto;
      height: calc(100% + 115px);
      z-index: 10;
      max-width: 1460px;
      margin-left: -730px;
      padding: 60px 30px 0;
      display: flex;
      align-items: center;
      pointer-events: none;
      visibility: hidden;
      opacity: 0;
    }
    /* active slide 的内容显示 - 与海报同步，无延迟 */
    .hero-slide.active .hero-content {
      visibility: visible;
      opacity: 1;
      transition: none;
    }
    .hero-video-container {
      position: relative;
      width: 100%;
      height: 100vh;
      z-index: 10;
      overflow: visible;
      opacity: 0;
      background: #000; /* 深色背景，防止闪白 */
      transition: opacity 1s ease;
    }

    .hero-video-container.scrollable {
      position: relative;
      height: auto;
      min-height: 100vh;
    }

    /* 视频容器显示状态 */
    .hero-video-container.visible {
      opacity: 1;
    }

    /* 视频容器淡出状态 */
    .hero-video-container.fade-out {
      opacity: 0;
    }

    /* 海报模式：视频结束后保留最后一帧作为静态背景 */
    .hero-video-container.poster-mode {
      opacity: 1;
      z-index: 1;
    }

    .hero-video {
      width: 100%;
      height: 100%;
      object-fit: cover;
      position: absolute;
      top: 0;
      left: 0;
    }

    .hero-video.fade-out {
      opacity: 0;
      transition: opacity 1s ease;
    }

    .hero-video-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(to right, rgba(0, 0, 0, 0.5) 0%, rgba(0, 0, 0, 0.2) 50%, rgba(0, 0, 0, 0.3) 100%);
      pointer-events: none;
      z-index: 1;
      transition: opacity 1s ease;
    }

    .hero-video-overlay.fade-out {
      opacity: 0;
    }

    /* 统一的过渡系统 - 所有元素都用 1s ease transition */
    .hidden-during-video {
      opacity: 0;
      pointer-events: none;
      transition: opacity 1s ease;
    }

    /* 海报 - 始终在视频下方，使用 opacity 控制 */
    .hero-slider.hidden-during-video {
      opacity: 0;
      pointer-events: none;
      transition: opacity 1s ease;
    }
    
    /* 当海报轮播激活时，显示当前活跃海报内的文字元素 - 无延迟，与海报同步 */
    .hero-slider:not(.hidden-during-video) .hero-slide.active .hidden-during-video {
      opacity: 1;
      pointer-events: auto;
      transition: none;
    }

    /* 禁用海报的内部动画，避免跳动 */
    .hero-slider.no-internal-animation .hero-slide img {
      animation: none;
    }
    
    /* 隐藏海报文字叠加层 - 保留DOM和API功能，方便以后启用 */
    #heroMainTitle, #heroSubtitle, #heroBodyText, #heroBtn {
      display: none !important;
    }
    
    /* 隐藏顶部展会标题文字 - 保留DOM功能，方便以后在后台编辑添加 */
    /* .top-info-title { display: none !important; } - 已注释，用户需要展示展会名称轮播 */
    
    /* 轮播(slider)的可见性由 .hidden-during-video 类控制（opacity） */
    
    /* 进度条容器 - 海报中间底部 */
    .hero-progress-container {
      position: absolute;
      bottom: 120px;
      left: 50%;
      transform: translateX(-50%);
      width: 200px;
      height: 3px;
      background: rgba(255, 255, 255, 0.3);
      border-radius: 2px;
      z-index: 25;
      overflow: visible;
    }
    
    /* 进度条 */
    .hero-progress-bar {
      height: 100%;
      width: 0%;
      background: linear-gradient(90deg, #FFCC00, #FFD700);
      border-radius: 2px;
      transition: width 0.1s linear;
    }
    
    /* 轮播指示点 */
    .hero-dots {
      position: absolute;
      bottom: 140px;
      left: 50%;
      transform: translateX(-50%);
      display: flex;
      gap: 12px;
      z-index: 25;
    }
    
    .hero-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.4);
      cursor: pointer;
      transition: all 0.3s ease;
    }
    
    .hero-dot:hover {
      background: rgba(255, 255, 255, 0.7);
    }
    
    .hero-dot.active {
      background: #FFCC00;
      transform: scale(1.2);
    }
    
    .hero-text {
      max-width: 700px;
      pointer-events: auto;
      position: relative;
      z-index: 30;
      text-align: left;
    }
    .hero-badge, .hero-text h1, .hero-text .subtitle {
      text-shadow: none;
      position: relative;
      z-index: 30;
    }
    .hero-text h1, .hero-text .subtitle {
      color: #ffffff;
    }
    .hero-badge {
      display: inline-block;
      background: var(--accent-yellow);
      color: var(--text-dark);
      padding: 12px 30px;
      border-radius: 30px;
      font-weight: 700;
      font-size: 14px;
      text-transform: uppercase;
      letter-spacing: 1.5px;
      margin-bottom: 30px;
      box-shadow: 0 4px 15px rgba(255,204,0,0.3);
    }
    .hero-text h1 {
      font-size: 58px;
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 25px;
      color: #ffffff;
      text-shadow:
        2px 2px 0 rgba(0, 0, 0, 0.3),
        4px 4px 0 rgba(0, 0, 0, 0.2),
        6px 6px 10px rgba(0, 0, 0, 0.5);
    }
    .hero-text h1 span {
      display: block;
      white-space: nowrap;
    }
    .hero-text .subtitle {
      font-size: 20px;
      color: #ffffff;
      margin-bottom: 40px;
      font-weight: 400;
      line-height: 1.6;
    }
    .hero-meta {
      display: flex;
      flex-direction: row;
      gap: 20px;
      margin-top: 30px;
      align-items: center;
    }
    .hero-meta-item {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      color: #ffffff;
      font-size: 16px;
      font-weight: 500;
      background: rgba(255, 255, 255, 0.15);
      backdrop-filter: blur(10px);
      padding: 12px 24px;
      border-radius: 30px;
      border: 1px solid rgba(255, 255, 255, 0.2);
      white-space: nowrap;
      width: fit-content;
    }
    .hero-meta-item i {
      font-size: 20px;
      color: var(--accent-yellow);
      flex-shrink: 0;
    }
    .hero-meta-item span {
      flex-shrink: 0;
    }
    
    /* 统一的文字过渡系统 - 所有文字都用 1s ease transition */
    .hero-text h1,
    .hero-text .subtitle,
    .hero-meta,
    .hero-badge {
      opacity: 0;
      transition: opacity 1s ease;
      position: relative;
    }

    .hero-text h1.visible,
    .hero-text .subtitle.visible,
    .hero-meta.visible,
    .hero-badge.visible {
      opacity: 1;
    }
    
    /* 海报底部红色矩形条 */
    .hero-features {
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      height: 90px;
      display: flex;
      z-index: 99;
      transition: opacity 0.8s ease-in-out;
    }
    
    .feature-item {
      flex: 1;
      min-width: 0;
      height: 90px;
      background: rgba(0, 0, 0, 0.6);
      backdrop-filter: blur(10px);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 0 30px;
      border: 1px solid rgba(255, 255, 255, 0.3);
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
      cursor: pointer;
      position: relative;
      z-index: 1;
    }

    .feature-item:last-child {
      border: 1px solid rgba(255, 255, 255, 0.3);
    }
    
    /* PC端：icon和中文在一行 */
    .feature-row {
      display: flex;
      flex-direction: row;
      align-items: center;
      gap: 15px;
    }
    
    .feature-icon {
      width: 40px;
      height: 40px;
      background: rgba(255, 255, 255, 0.2);
      border-radius: 8px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      color: white;
      flex-shrink: 0;
    }
    
    .feature-item h4 {
      font-size: 20px;
      font-weight: 700;
      color: white;
      margin: 0;
      line-height: 1.2;
      display: flex;
      flex-direction: row;
      gap: 0;
      white-space: nowrap;
    }
    
    .feature-item h4 span {
      display: inline;
    }

    .feature-en {
      font-size: 11px;
      color: rgba(255, 255, 255, 0.8);
      font-weight: 400;
      text-transform: uppercase;
      letter-spacing: 0.5px;
      line-height: 1.2;
      text-align: center;
    }
    
    /* 企业简介板块 - 浅灰色底色+红色重点文字 */
    .about-section {
      padding: 60px 0;
      background: #f8f9fa;
      position: relative;
      z-index: 5;
      overflow: visible;
    }

    /* 背景图片遮罩，确保文字可读 */
    .about-section::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background: rgba(248, 249, 250, 0.92);
      z-index: 1;
      pointer-events: none;
    }

    /* 背景装饰 - 科技感点线连接 */
    .about-section::after {
      content: '';
      position: absolute;
      top: 50px;
      right: 50px;
      width: 350px;
      height: 350px;
      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 350 350'%3E%3Ccircle cx='50' cy='50' r='2' fill='%23CBD5E0'/%3E%3Ccircle cx='150' cy='80' r='1.5' fill='%23CBD5E0'/%3E%3Ccircle cx='250' cy='120' r='2' fill='%23CBD5E0'/%3E%3Ccircle cx='300' cy='180' r='1.5' fill='%23CBD5E0'/%3E%3Ccircle cx='280' cy='280' r='2' fill='%23CBD5E0'/%3E%3Ccircle cx='180' cy='300' r='1.5' fill='%23CBD5E0'/%3E%3Ccircle cx='80' cy='250' r='2' fill='%23CBD5E0'/%3E%3Ccircle cx='120' cy='180' r='1.5' fill='%23CBD5E0'/%3E%3Ccircle cx='200' cy='200' r='1' fill='%23CBD5E0'/%3E%3Cline x1='50' y1='50' x2='150' y2='80' stroke='%23CBD5E0' stroke-width='0.8' stroke-dasharray='4 3'/%3E%3Cline x1='150' y1='80' x2='250' y2='120' stroke='%23CBD5E0' stroke-width='0.8' stroke-dasharray='4 3'/%3E%3Cline x1='250' y1='120' x2='300' y2='180' stroke='%23CBD5E0' stroke-width='0.8' stroke-dasharray='4 3'/%3E%3Cline x1='300' y1='180' x2='280' y2='280' stroke='%23CBD5E0' stroke-width='0.8' stroke-dasharray='4 3'/%3E%3Cline x1='280' y1='280' x2='180' y2='300' stroke='%23CBD5E0' stroke-width='0.8' stroke-dasharray='4 3'/%3E%3Cline x1='180' y1='300' x2='80' y2='250' stroke='%23CBD5E0' stroke-width='0.8' stroke-dasharray='4 3'/%3E%3Cline x1='80' y1='250' x2='50' y2='50' stroke='%23CBD5E0' stroke-width='0.8' stroke-dasharray='4 3'/%3E%3Cline x1='120' y1='180' x2='200' y2='200' stroke='%23CBD5E0' stroke-width='0.6' stroke-dasharray='3 2'/%3E%3Cline x1='200' y1='200' x2='280' y2='280' stroke='%23CBD5E0' stroke-width='0.6' stroke-dasharray='3 2'/%3E%3Cline x1='120' y1='180' x2='50' y2='50' stroke='%23CBD5E0' stroke-width='0.6' stroke-dasharray='3 2'/%3E%3Cline x1='120' y1='180' x2='150' y2='80' stroke='%23CBD5E0' stroke-width='0.6' stroke-dasharray='3 2'/%3E%3Cline x1='200' y1='200' x2='250' y2='120' stroke='%23CBD5E0' stroke-width='0.6' stroke-dasharray='3 2'/%3E%3Cline x1='200' y1='200' x2='300' y2='180' stroke='%23CBD5E0' stroke-width='0.6' stroke-dasharray='3 2'/%3E%3Cline x1='200' y1='200' x2='180' y2='300' stroke='%23CBD5E0' stroke-width='0.6' stroke-dasharray='3 2'/%3E%3Cline x1='200' y1='200' x2='80' y2='250' stroke='%23CBD5E0' stroke-width='0.6' stroke-dasharray='3 2'/%3E%3Ccircle cx='200' cy='200' r='60' stroke='%23CBD5E0' stroke-width='0.5' fill='none' stroke-dasharray='3 3'/%3E%3Ccircle cx='200' cy='200' r='90' stroke='%23CBD5E0' stroke-width='0.4' fill='none' stroke-dasharray='2 2'/%3E%3Ccircle cx='200' cy='200' r='120' stroke='%23CBD5E0' stroke-width='0.3' fill='none' stroke-dasharray='2 2'/%3E%3C/svg%3E");
      background-repeat: no-repeat;
      background-size: contain;
      opacity: 1;
      pointer-events: none;
      z-index: 2;
    }

    .about-container {
      max-width: 1800px;
      margin: 0 auto;
      padding: 0 40px;
      position: relative;
      z-index: 3;
    }

    /* 主内容区域 - 左图右文（无间距） */
    .about-main {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 60px;
      align-items: center;
      margin-bottom: 40px;
    }

    /* 左侧图片 */
    .about-image-section {
      position: relative;
    }

    .about-main-image {
      position: relative;
      border-radius: 8px;
      overflow: visible;
      box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    }

    .about-main-image img {
      width: 100%;
      height: auto;
      min-height: 450px;
      object-fit: cover;
      display: block;
      transition: transform 0.6s ease;
    }

    .about-main-image:hover img {
      transform: scale(1.05);
    }

    /* 右侧文字 */
    .about-content-wrapper {
      padding-right: 20px;
    }

    .about-content-tag {
      display: inline-block;
      background: #DC2626;
      color: white;
      padding: 8px 20px;
      border-radius: 4px;
      font-weight: 600;
      font-size: 14px;
      text-transform: uppercase;
      letter-spacing: 2px;
      margin-bottom: 30px;
      border: 1px solid #DC2626;
    }

    .about-content-wrapper h3 {
      font-size: 36px;
      font-weight: 700;
      color: #1A202C;
      margin-bottom: 25px;
      line-height: 1.4;
    }

    .about-description {
      font-size: 18px;
      color: #718096;
      line-height: 2;
      text-align: justify;
      margin-bottom: 30px;
    }

    .about-description strong {
      color: #4A5568;
      font-weight: 600;
    }

    .about-cta {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: #1A202C;
      font-weight: 600;
      font-size: 16px;
      transition: all 0.3s ease;
      padding: 12px 30px;
      background: #E2E8F0;
      border-radius: 4px;
      border: 1px solid #CBD5E0;
    }

    .about-cta:hover {
      gap: 15px;
      background: #CBD5E0;
      border-color: #A0AEC0;
    }

    .about-cta i {
      font-size: 20px;
      transition: transform 0.3s ease;
    }

    .about-cta:hover i {
      transform: translateX(5px);
    }

    /* 下方数据展示 - 紧密连接 */
    .about-stats-section {
      background: white;
      padding: 50px 40px;
      border-radius: 8px;
      box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
      border: 1px solid #E2E8F0;
      position: relative;
      overflow: visible;
    }

    /* 点线动画背景 canvas */
    .about-stats-section .network-canvas {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      z-index: 0;
      pointer-events: none;
    }

    /* 确保内容在canvas之上 */
    .about-stats-section > * {
      position: relative;
      z-index: 1;
    }

    .about-stats-header {
      text-align: center;
      margin-bottom: 40px;
    }

    .about-stats-header h4 {
      font-size: 24px;
      font-weight: 600;
      color: #1A202C;
      margin-bottom: 10px;
    }

    .about-stats-header p {
      font-size: 16px;
      color: #718096;
    }

    /* 4个数据横向排列 */
    .about-stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 40px;
    }

    .stat-card-item {
      text-align: center;
      position: relative;
      padding: 0 10px;
    }

    /* 数据项之间的分隔线 */
    .stat-card-item:not(:last-child)::after {
      content: '';
      position: absolute;
      right: 0;
      top: 15%;
      bottom: 15%;
      width: 1px;
      background: linear-gradient(180deg, transparent, rgba(203, 213, 224, 0.5), transparent);
    }

    .stat-item-icon {
      width: 80px;
      height: 80px;
      background: #DC2626;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 40px;
      color: white;
      margin: 0 auto 25px;
      border-radius: 4px;
    }

    .stat-item-number {
      font-size: 56px;
      font-weight: 900;
      line-height: 1;
      color: #1A202C;
      margin-bottom: 15px;
      position: relative;
      display: inline-block;
    }

    .stat-item-number::before {
      content: '+';
      position: absolute;
      top: -5px;
      right: -18px;
      font-size: 30px;
      color: #DC2626;
      font-weight: 700;
      margin-left: 2px;
    }

    .stat-item-label {
      font-size: 18px;
      color: #4A5568;
      font-weight: 600;
      margin-bottom: 5px;
    }

    .stat-item-unit {
      font-size: 14px;
      color: #A0AEC0;
      text-transform: uppercase;
      letter-spacing: 1px;
    }

    /* 展会系列 */
    .exhibitions-section {
      padding: 60px 0 0 0;
      background: transparent;
      position: relative;
      z-index: 2;
      margin-top: -60px;
      margin-bottom: 0;
      opacity: 0;
      transform: translateY(100px);
      transition: opacity 0.6s ease, transform 0.6s ease;
    }

    .exhibitions-section.visible {
      opacity: 1;
      transform: translateY(0);
    }
    .section-header {
      text-align: center;
      margin-bottom: 60px;
    }
    .section-tag {
      display: inline-block;
      background: #DC2626;
      color: white;
      padding: 10px 25px;
      border-radius: 25px;
      font-weight: 700;
      font-size: 14px;
      text-transform: uppercase;
      letter-spacing: 1.5px;
      margin-bottom: 15px;
    }
    .section-header h2 {
      font-size: 42px;
      color: var(--text-dark);
      margin-bottom: 15px;
      font-weight: 800;
    }
    .section-header p {
      color: var(--text-light);
      font-size: 18px;
    }
    .exhibitions-grid {
      max-width: 1400px;
      margin: 0 auto;
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 40px;
      padding: 0 30px;
    }
    .exhibition-card {
      background: var(--bg-white);
      border-radius: 15px;
      overflow: hidden;
      box-shadow: 0 4px 20px rgba(0,0,0,0.08);
      transition: all 0.4s;
      cursor: pointer;
    }
    .exhibition-card:hover {
      transform: translateY(-12px);
      box-shadow: 0 20px 40px rgba(0,0,0,0.15);
    }
    .exhibition-image {
      height: 240px;
      overflow: hidden;
      position: relative;
    }
    .exhibition-image img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s;
    }
    .exhibition-card:hover .exhibition-image img {
      transform: scale(1.1);
    }
    .exhibition-badge {
      position: absolute;
      top: 20px;
      left: 20px;
      background: var(--accent-yellow);
      color: var(--text-dark);
      padding: 8px 18px;
      border-radius: 25px;
      font-weight: 700;
      font-size: 12px;
      text-transform: uppercase;
    }
    .exhibition-content {
      padding: 30px;
    }
    .exhibition-content h3 {
      font-size: 22px;
      color: var(--text-dark);
      margin-bottom: 12px;
      font-weight: 700;
      line-height: 1.4;
    }
    .exhibition-content p {
      color: var(--text-gray);
      font-size: 15px;
      margin-bottom: 20px;
      line-height: 1.6;
    }
    .exhibition-meta {
      display: flex;
      justify-content: space-between;
      padding-top: 20px;
      border-top: 1px solid var(--border-color);
    }
    .exhibition-meta span {
      display: flex;
      align-items: center;
      gap: 6px;
      color: var(--text-light);
      font-size: 14px;
    }
    .exhibition-meta i {
      color: #DC2626;
    }

    /* 交互式展会板块 */
    .exhibitions-interactive {
      width: 100%;
      margin: 0;
      padding: 0;
      display: flex;
      gap: 0;
      height: 560px;
    }

    .exhibition-panel {
      flex: 1;
      position: relative;
      border-radius: 0;
      overflow: hidden;
      cursor: pointer;
      transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
      background: #1a1a1a;
    }

    .exhibition-panel:hover {
      flex: 2.5;
      box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    }

    .exhibition-panel-bg {
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background-size: cover;
      background-position: center;
      transition: transform 0.6s ease;
      z-index: 0;
    }

    .exhibition-panel:hover .exhibition-panel-bg {
      transform: scale(1.05);
    }

    .exhibition-panel::after {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      z-index: 1;
      background: linear-gradient(to bottom,
        rgba(0, 0, 0, 0) 0%,
        rgba(0, 0, 0, 0) 35%,
        rgba(0, 0, 0, 0.2) 70%,
        rgba(0, 0, 0, 0.4) 100%);
      transition: all 0.5s ease;
    }

    .exhibition-panel:hover::after {
      background: rgba(0, 0, 0, 0.2);
    }

    /* 蓝色遮罩 - 紧固件展会（使用用户指定颜色） */
    .exhibition-panel-blue:hover::after {
      background: rgba(0, 91, 161, 0.95);
    }

    /* 红色遮罩 - 标准件展会（更深色，高饱和度） */
    .exhibition-panel-red:hover::after {
      background: rgba(185, 28, 28, 0.95);
    }

    /* 绿色遮罩 - 光伏新能源展会（更深色，高饱和度） */
    .exhibition-panel-green:hover::after {
      background: rgba(5, 150, 105, 0.95);
    }

    .exhibition-panel-content {
      position: relative;
      z-index: 10;
      height: 100%;
      padding: 40px;
      display: flex;
      flex-direction: column;
      justify-content: flex-end;
      color: white;
    }

    .exhibition-panel-header {
      position: absolute;
      left: 40px;
      right: 40px;
      bottom: 25%;
      transition: all 0.7s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .exhibition-panel:hover .exhibition-panel-header {
      bottom: auto;
      top: 20%;
    }

    .exhibition-panel-tag {
      display: inline-block;
      background: #DC2626;
      color: white;
      padding: 8px 18px;
      border-radius: 20px;
      font-weight: 700;
      font-size: 12px;
      text-transform: uppercase;
      margin-bottom: 20px;
      transition: all 0.3s ease;
    }

    /* 蓝色面板默认使用深蓝色 - 使用用户指定颜色 */
    .exhibition-panel-blue .exhibition-panel-tag {
      background: rgb(0, 69, 139);
    }

    /* 红色面板默认使用深红色 */
    .exhibition-panel-red .exhibition-panel-tag {
      background: #991B1B;
    }

    /* 绿色面板默认使用深绿色 */
    .exhibition-panel-green .exhibition-panel-tag {
      background: #065F46;
    }

    /* 悬停时tag变成对应板块的浅色，文字保持白色 */
    .exhibition-panel-blue:hover .exhibition-panel-tag {
      background: rgb(0, 135, 205);
      color: white;
    }

    /* 红色面板悬停时，tag使用浅红色 */
    .exhibition-panel-red:hover .exhibition-panel-tag {
      background: #DC2626;
      color: white;
    }

    /* 绿色面板悬停时，tag使用浅绿色 */
    .exhibition-panel-green:hover .exhibition-panel-tag {
      background: #10B981;
      color: white;
    }

    .exhibition-panel-header h3 {
      font-size: 28px;
      font-weight: 800;
      line-height: 1.3;
      margin: 0;
      text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    }

    .exhibition-panel-info {
      max-height: 0;
      overflow: visible;
      opacity: 0;
      transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
      transform: translateY(20px);
    }

    .exhibition-panel:hover .exhibition-panel-info {
      max-height: 200px;
      opacity: 1;
      transform: translateY(0);
      margin-bottom: 20px;
    }

    .exhibition-panel-info p {
      margin: 0 0 10px 0;
      font-size: 14px;
      opacity: 0.9;
      line-height: 1.6;
    }

    .exhibition-panel-info p:last-child {
      font-size: 13px;
      opacity: 0.8;
      font-style: italic;
    }

    .exhibition-panel-info i {
      color: #DC2626;
      margin-right: 8px;
      width: 16px;
      transition: color 0.3s ease;
    }

    /* 悬停时图标和文字变成白色 */
    .exhibition-panel:hover .exhibition-panel-info i {
      color: white;
    }

    .exhibition-panel:hover .exhibition-panel-info p {
      color: white;
    }

    .exhibition-panel-categories {
      max-height: 0;
      overflow: visible;
      opacity: 0;
      transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1) 0.1s;
      transform: translateY(20px);
    }

    .exhibition-panel:hover .exhibition-panel-categories {
      max-height: 400px;
      opacity: 1;
      transform: translateY(0);
    }

    .exhibition-panel-categories h4 {
      font-size: 14px;
      font-weight: 700;
      margin-bottom: 12px;
      color: white;
      text-transform: uppercase;
      letter-spacing: 1px;
    }

    .category-list {
      display: flex;
      flex-wrap: wrap;
      gap: 0;
    }

    .category-item {
      display: flex;
      align-items: center;
      gap: 10px;
      background: #991B1B;
      padding: 10px 15px;
      border-radius: 0;
      border: none;
      transition: all 0.3s ease;
      font-size: 13px;
      font-weight: 500;
      color: white;
      position: relative;
    }

    /* 蓝色面板默认使用深蓝色 - 使用用户指定颜色 */
    .exhibition-panel-blue .category-item {
      background: rgb(0, 69, 139);
    }

    /* 红色面板默认使用深红色 */
    .exhibition-panel-red .category-item {
      background: #991B1B;
    }

    /* 绿色面板默认使用深绿色 */
    .exhibition-panel-green .category-item {
      background: #065F46;
    }

    /* 悬停时category-item变成对应板块的浅色，文字保持白色 */
    .category-item::after {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: #DC2626;
      transform: scaleX(0);
      transform-origin: left;
      transition: transform 0.3s ease;
    }

    /* 为不同面板的category-item伪元素设置不同浅色 */
    .exhibition-panel-blue .category-item::after {
      background: rgb(0, 135, 205);
    }

    .exhibition-panel-red .category-item::after {
      background: #DC2626;
    }

    .exhibition-panel-green .category-item::after {
      background: #10B981;
    }

    .category-item:hover::after {
      transform: scaleX(1);
    }

    /* 为不同面板的category-item设置不同的hover效果 */
    .exhibition-panel-blue .category-item:hover {
      transform: translateY(-2px);
    }

    .exhibition-panel-red .category-item:hover {
      transform: translateY(-2px);
    }

    .exhibition-panel-green .category-item:hover {
      transform: translateY(-2px);
    }

    .category-item i {
      font-size: 16px;
      color: white;
      z-index: 1;
    }

    .category-item span {
      z-index: 1;
    }
    
    /* 页脚 - 深灰色背景，白色文字 */
    .footer {
      background: #252525;
      color: white;
      padding: 60px 0 20px;
    }
    .footer-content {
      max-width: 1800px;
      margin: 0 auto;
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 30px;
      padding: 0 30px;
      margin-bottom: 50px;
      align-items: flex-start;
    }
    .footer-col {
      padding: 0 20px;
    }
    .footer-col h4 {
      margin-bottom: 20px;
      color: white;
      font-weight: 700;
    }
    .footer-col .contact-item {
      color: white;
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 12px;
    }
    .footer-col .contact-item i {
      min-width: 28px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: white;
      line-height: 1;
    }
    .footer-col .contact-item span {
      display: block;
      line-height: 1.5;
    }
    .footer-col a {
      color: white;
      display: block;
      margin-bottom: 12px;
      transition: color 0.3s;
      text-decoration: none;
    }
    .footer-col a:hover {
      color: var(--accent-yellow);
    }
    .footer-col p {
      line-height: 1.7;
      color: white;
      width: 100%;
      max-width: none;
    }
    .footer-bottom {
      text-align: center;
      padding-top: 35px;
      border-top: 1px solid rgba(255,255,255,0.2);
      color: white;
      font-size: 14px;
    }
    /* 关注我们按钮默认选中状态 - 红色底白色字 */
    .qr-switch-btn.active {
      background: #DC2626;
      border-color: #DC2626;
      color: white;
    }
    
    /* 滚动动画样式 */
    .scroll-animate {
      opacity: 0;
      transform: translateY(60px);
      transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    .scroll-animate.animate-active {
      opacity: 1;
      transform: translateY(0);
    }
    
    /* 新闻中心板块的内部元素动画延迟 */
    .scroll-animate .news-main {
      opacity: 0;
      transform: translateY(40px);
      transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.2s;
    }
    
    .scroll-animate.animate-active .news-main {
      opacity: 1;
      transform: translateY(0);
    }
    
    .scroll-animate .news-right {
      opacity: 0;
      transform: translateY(40px);
      transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.4s;
    }
    
    .scroll-animate.animate-active .news-right {
      opacity: 1;
      transform: translateY(0);
    }
    
    /* 企业简介板块的内部元素动画延迟 */
    .scroll-animate .about-main {
      opacity: 0;
      transform: translateY(60px);
      transition: all 1s cubic-bezier(0.4, 0, 0.2, 1) 0.3s;
    }

    .scroll-animate.animate-active .about-main {
      opacity: 1;
      transform: translateY(0);
    }

    /* 左侧图片动画 */
    .scroll-animate .about-image-section {
      opacity: 0;
      transform: translateX(-50px);
      transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.4s;
    }

    .scroll-animate.animate-active .about-image-section {
      opacity: 1;
      transform: translateX(0);
    }

    /* 右侧文字动画 */
    .scroll-animate .about-content-wrapper {
      opacity: 0;
      transform: translateX(50px);
      transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.5s;
    }

    .scroll-animate.animate-active .about-content-wrapper {
      opacity: 1;
      transform: translateX(0);
    }

    /* 标签动画 */
    .scroll-animate .about-content-tag {
      opacity: 0;
      transform: translateY(-20px) scale(0.9);
      transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1) 0.6s;
    }

    .scroll-animate.animate-active .about-content-tag {
      opacity: 1;
      transform: translateY(0) scale(1);
    }

    /* 标题动画 */
    .scroll-animate .about-content-wrapper h3 {
      opacity: 0;
      transform: translateY(-15px);
      transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1) 0.7s;
    }

    .scroll-animate.animate-active .about-content-wrapper h3 {
      opacity: 1;
      transform: translateY(0);
    }

    /* 描述文字动画 */
    .scroll-animate .about-description {
      opacity: 0;
      transform: translateY(10px);
      transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1) 0.8s;
    }

    .scroll-animate.animate-active .about-description {
      opacity: 1;
      transform: translateY(0);
    }

    /* 按钮动画 */
    .scroll-animate .about-cta {
      opacity: 0;
      transform: translateY(10px);
      transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1) 0.9s;
    }

    .scroll-animate.animate-active .about-cta {
      opacity: 1;
      transform: translateY(0);
    }


    /* 统计数据板块的内部元素动画延迟 */
    .scroll-animate .about-stats-section {
      opacity: 0;
      transform: translateY(60px);
      transition: all 1s cubic-bezier(0.4, 0, 0.2, 1) 1s;
    }

    .scroll-animate.animate-active .about-stats-section {
      opacity: 1;
      transform: translateY(0);
    }

    /* 统计卡片的交错动画 */
    .scroll-animate .stat-card-item {
      opacity: 0;
      transform: translateY(50px) scale(0.9);
      transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    .scroll-animate.animate-active .stat-card-item {
      opacity: 1;
      transform: translateY(0);
    }
    
    /* 合作单位板块的卡片动画延迟 */
    .scroll-animate .partner-card {
      opacity: 0;
      transform: translateY(30px);
      transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1), transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    .scroll-animate.animate-active .partner-card {
      opacity: 1;
    }
    
    #venueSubPage .section-header,
    #contactSubPage .section-header {
      text-align: center;
      margin-bottom: 60px;
    }
    
    /* 二维码切换按钮 */
    .qr-switch-btn {
      width: 100%;
      padding: 10px 15px;
      background: rgba(255,255,255,0.1);
      border: 1px solid rgba(255,255,255,0.2);
      border-radius: 4px;
      color: #B0B0B0;
      font-size: 14px;
      cursor: pointer;
      transition: all 0.3s;
      text-align: center;
      white-space: nowrap;
    }
    .qr-switch-btn:hover {
      background: rgba(255,255,255,0.15);
      color: white;
    }
    .qr-switch-btn.active {
      background: #DC2626;
      border-color: #DC2626;
      color: white;
    }
    
    /* 模态框表单 */
    .modal-overlay { display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0,0,0,0.6); z-index: 9999; align-items: center; justify-content: center; overflow-y: auto; padding: 20px; }
    .modal-overlay.active { display: flex; }
    .modal-container { background: white; border-radius: 15px; width: 100%; max-width: 800px; max-height: 90vh; overflow-y: auto; position: relative; animation: modalSlideIn 0.3s ease; }
    @keyframes modalSlideIn { from { transform: translateY(-50px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
    .modal-header { background: linear-gradient(135deg, #DC2626, #991B1B); color: white; padding: 25px 30px; position: sticky; top: 0; z-index: 10; display: flex; justify-content: space-between; align-items: center; }
    .modal-header h2 { font-size: 24px; font-weight: 700; }
    .modal-close { background: rgba(255,255,255,0.2); border: none; color: white; width: 35px; height: 35px; border-radius: 50%; font-size: 20px; cursor: pointer; transition: background 0.3s; }
    .modal-close:hover { background: rgba(255,255,255,0.3); }
    .modal-body { padding: 30px; }
    .modal-section { margin-bottom: 30px; }
    .modal-section h3 { font-size: 18px; color: #DC2626; margin-bottom: 20px; padding-bottom: 12px; border-bottom: 2px solid var(--border-color); }
    .modal-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-bottom: 20px; }
    .modal-group { margin-bottom: 20px; }
    .modal-group.full { grid-column: 1 / -1; }
    .modal-group label { display: block; color: var(--text-dark); font-weight: 600; margin-bottom: 8px; font-size: 14px; }
    .modal-group label .required { color: #e53e3e; margin-left: 5px; }
    .modal-group input, .modal-group textarea, .modal-group select { width: 100%; padding: 12px 14px; border: 2px solid var(--border-color); border-radius: 8px; font-size: 14px; font-family: inherit; transition: border-color 0.3s; }
    .modal-group input:focus, .modal-group textarea:focus, .modal-group select:focus { outline: none; border-color: #DC2626; }
    .modal-group textarea { resize: vertical; min-height: 100px; }
    .modal-submit { width: 100%; padding: 16px; background: linear-gradient(135deg, #DC2626, #991B1B); color: white; border: none; border-radius: 10px; font-size: 15px; font-weight: 700; cursor: pointer; transition: all 0.3s; margin-top: 20px; }
    .modal-submit:hover { transform: translateY(-2px); box-shadow: 0 10px 25px rgba(220,38,38,0.3); }
    .modal-success { display: none; background: #c6f6d5; color: #22543d; padding: 20px; border-radius: 10px; margin-bottom: 25px; text-align: center; }
    .modal-success.show { display: block; }
    
    /* 视频播放结束提示区域 */
    .video-end-hint {
      display: none;
      position: absolute;
      bottom: 30px;
      left: 50%;
      transform: translateX(-50%);
      text-align: center;
      color: white;
      z-index: 1000;
      flex-direction: column;
      align-items: center;
      animation: fadeInUp 0.5s ease forwards;
      pointer-events: none;
    }
    
    @keyframes fadeInUp {
      from {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
      }
      to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
      }
    }
    
    .video-end-hint.show {
      display: flex;
    }
    
    .scroll-arrow {
      width: 60px;
      height: 60px;
      border: 3px solid white;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 15px;
      animation: bounceDown 1.5s infinite;
      background: rgba(0, 0, 0, 0.3);
    }
    
    .scroll-arrow i {
      font-size: 30px;
      color: white;
    }
    
    @keyframes bounceDown {
      0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
      }
      40% {
        transform: translateY(-15px);
      }
      60% {
        transform: translateY(-8px);
      }
    }
    
    .scroll-hint-text {
      font-size: 16px;
      color: rgba(255, 255, 255, 1);
      text-shadow: 0 2px 4px rgba(0, 0, 0, 0.8);
      font-weight: bold;
    }

    /* 视频模态框全屏覆盖修复 */
    #videoModal.modal-overlay {
      background: rgba(0, 0, 0, 0.9) !important;
    }

    #videoModal.modal-overlay.active {
      padding: 0 !important;
      align-items: stretch !important;
    }

    #videoModal .video-modal-container {
      width: 100% !important;
      max-width: 100% !important;
      height: 100vh !important;
      max-height: 100vh !important;
      border-radius: 0 !important;
      display: flex;
      flex-direction: column;
      margin: 0 auto;
    }

    #videoModal .video-modal-body {
      flex: 1;
      padding: 0 !important;
      background: #000 !important;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    #videoModal .video-modal-body iframe {
      width: 100%;
      height: 100%;
      max-height: calc(100vh - 80px);
    }

    #videoModal .video-end-hint {
      position: fixed;
      bottom: 40px;
      left: 50%;
      transform: translateX(-50%);
    }

    /* 二维码切换按钮 */
    .qr-switch-btn {
      width: 100%;
      padding: 10px 15px;
      background: rgba(255,255,255,0.1);
      border: 1px solid rgba(255,255,255,0.2);
      border-radius: 4px;
      color: #B0B0B0;
      font-size: 13px;
      cursor: pointer;
      transition: all 0.3s;
      text-align: center;
    }
    .qr-switch-btn:hover {
      background: rgba(255,255,255,0.15);
      color: white;
    }
    .qr-switch-btn.active {
      background: #DC2626;
      border-color: #DC2626;
      color: white;
    }

    /* PC端字号样式 - 只在769px以上生效 */
    @media (min-width: 769px) {
      .footer-col h4 {
        font-size: 28px;
      }
      .footer-col .contact-item {
        font-size: 18px;
      }
      .footer-col .contact-item i {
        font-size: 22px;
      }
      .footer-col a {
        font-size: 18px;
      }
      .footer-col p {
        font-size: 18px;
      }
      .footer-bottom {
        font-size: 14px;
      }
    }

    @media (min-width: 1201px) {
      .footer-content {
        gap: 30px;
        grid-template-columns: 1.5fr 1fr 1fr 1fr;
        align-items: flex-start;
      }
      .footer-col {
        padding: 0 20px;
      }
      /* 快速链接板块往右移动50px */
      .footer-col:nth-child(2) {
        margin-left: 50px;
      }
      /* 关注我们板块的二维码布局 */
      .footer-col:nth-child(4) {
        padding: 0 0 0 20px;
      }
      .footer-col:nth-child(4) > div {
        display: flex;
        align-items: center;
        gap: 15px;
        justify-content: flex-start;
        margin-top: 10px;
      }
      .footer-col:nth-child(4) #qrCodeContainer {
        width: 120px;
        height: 120px;
        background: white;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 4px;
        flex-shrink: 0;
      }
      .footer-col:nth-child(4) #qrCodeContainer i {
        font-size: 100px;
        color: #07C160;
      }
      .footer-col:nth-child(4) > div > div:last-child {
        display: flex;
        gap: 10px;
        flex-direction: column;
        justify-content: center;
        width: auto;
      }
      .footer-col:nth-child(4) .qr-switch-btn {
        padding: 8px 12px;
        font-size: 12px;
      }
    }

    @media (max-width: 1024px) {
      .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
      }
    }

    /* 平板端：两个展会一行 */
    @media (max-width: 1200px) {
      .about-container { max-width: 1200px; }
      .about-main { gap: 50px; }
      .about-stats-grid { gap: 30px; }
      .stat-item-icon { width: 70px; height: 70px; font-size: 36px; }
      .stat-item-number { font-size: 48px; }
    }

    @media (max-width: 1024px) {
      .about-section { padding: 50px 0; }
      .about-container { padding: 0 30px; }
      .about-main {
        grid-template-columns: 1fr;
        gap: 50px;
      }

      .about-content-wrapper {
        padding-right: 0;
      }

      .about-content-wrapper h3 {
        font-size: 32px;
      }

      .about-description {
        font-size: 17px;
      }

      .about-stats-section {
        padding: 40px 30px;
      }

      .about-stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
      }

      .stat-card-item:not(:last-child)::after {
        display: none;
      }
    }

    @media (max-width: 768px) {
      .about-section { padding: 40px 0; }
      .about-container { padding: 0 20px; }

      .about-main-image {
        border-radius: 6px;
      }

      .about-main-image img {
        min-height: 300px;
      }

      .about-content-wrapper h3 {
        font-size: 26px;
      }

      .about-description {
        font-size: 15px;
        line-height: 1.8;
      }

      .about-content-tag {
        font-size: 13px;
        padding: 6px 16px;
      }

      .about-cta {
        font-size: 15px;
        padding: 10px 25px;
      }

      .about-stats-section {
        padding: 35px 20px;
        border-radius: 6px;
      }

      .about-stats-header h4 {
        font-size: 20px;
      }

      .about-stats-header p {
        font-size: 14px;
      }

      .about-stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
      }

      .stat-item-icon {
        width: 60px;
        height: 60px;
        font-size: 30px;
        border-radius: 4px;
        margin-bottom: 20px;
      }

      .stat-item-number {
        font-size: 40px;
      }

      .stat-item-label {
        font-size: 16px;
        margin-bottom: 3px;
      }

      .stat-item-unit {
        font-size: 12px;
      }

      /* 交互式展会板块 - 移动端适配 */
      .exhibitions-interactive {
        flex-direction: column;
        height: auto;
        padding: 0 20px;
        padding-bottom: 0;
        margin-bottom: 0;
      }

      .exhibition-panel {
        height: 300px;
        transition: all 0.3s ease;
        margin-bottom: 0;
      }

      /* 最后一个展会展板不要底部间距 */
      .exhibition-panel:last-child {
        margin-bottom: 0;
      }
      
      /* 最后一个展会展板内容区减少底部padding */
      .exhibition-panel:last-child .exhibition-panel-content {
        padding-bottom: 10px;
      }

      .exhibition-panel:hover {
        flex: 1;
      }

      .exhibition-panel:hover .exhibition-panel-bg {
        transform: scale(1.02);
      }

      .exhibition-panel-content {
        padding: 20px 25px;
      }

      .exhibition-panel-header h3 {
        font-size: 22px;
      }

      .exhibition-panel-info {
        max-height: 0;
        opacity: 0;
      }

      .exhibition-panel:hover .exhibition-panel-info {
        max-height: 0;
        opacity: 0;
        display: none;
      }

      .exhibition-panel-categories {
        max-height: 0;
        opacity: 0;
      }

      .exhibition-panel:hover .exhibition-panel-categories {
        max-height: 0;
        opacity: 0;
        display: none;
      }

      /* 顶部栏 - 移动端三列独立定位 */
      .top-bar { 
        position: fixed;
        top: 10px;
        left: 0;
        right: 0;
        background: transparent; 
        backdrop-filter: none; 
        box-shadow: none;
        z-index: 1000;
        height: 50px;
      }
      .top-bar::before {
        content: '';
        position: absolute;
        top: -10px;
        left: 0;
        right: 0;
        height: 10px;
        background: inherit;
        z-index: -1;
      }
      .top-bar::after {
        display: none;
      }
      /* 移动端滚动时顶部横幅显示白底 */
      .top-bar.scrolled {
        background: rgba(255,255,255,0.98);
        box-shadow: 0 2px 10px rgba(0,0,0,0.1);
      }
      .top-bar .container { 
        position: relative;
        padding: 0; 
        margin: 0;
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
        height: 50px;
      }
      /* 移动端顶部栏布局 - Logo 和展会信息并排 */
      .top-bar .container {
        display: flex;
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        padding: 0 8px;
      }
      .top-logo {
        display: flex;
        align-items: center;
        gap: 8px;
        flex-shrink: 0;
      }
      .top-logo img {
        max-height: 32px;
        max-width: 120px;
        filter: brightness(0) invert(1);
      }
      .logo-divider {
        height: 25px;
        background: rgba(255,255,255,0.3);
      }
      .top-info-container {
        flex: 1;
        text-align: left;
        padding-left: 6px;
        margin-right: 3px;
      }
      .top-info-title {
        font-size: 13px;
        font-weight: 600;
        color: white;
        white-space: nowrap;
        line-height: 1.2;
        margin-bottom: 2px;
      }
      .top-info-meta {
        display: flex;
        gap: 8px;
        font-size: 8px;
        color: rgba(255,255,255,0.9);
        white-space: nowrap;
        line-height: 1.2;
      }
      .top-info-meta .top-info-item {
        font-size: 8px;
      }
      .top-info-meta .top-info-item span {
        font-size: 8px;
      }
      .top-info-meta .ri {
        color: #DC2626;
        font-size: 10px;
      }
      /* 移动端滚动后文字变深色 */
      .top-bar.scrolled .top-info-title {
        color: var(--text-dark);
      }
      .top-bar.scrolled .top-info-meta {
        color: var(--text-gray);
      }
      .top-bar.scrolled .top-logo img {
        filter: none;
      }
      .top-bar.scrolled .logo-divider {
        background: rgba(0,0,0,0.2);
      }
      /* 第二行：按钮在左，菜单在右 - 默认透明 */
      .top-actions {
        position: absolute;
        bottom: -38px;
        left: 0;
        right: 0;
        display: flex;
        justify-content: space-between;
        align-items: center;
        background: transparent;
        padding: 6px 10px;
        height: 38px;
        box-shadow: none;
      }
      /* 滚动后第二行显示白底 */
      .top-bar.scrolled .top-actions {
        background: rgba(255,255,255,0.98);
        box-shadow: 0 1px 3px rgba(0,0,0,0.1);
      }
      .top-actions-buttons {
        display: flex;
        gap: 6px;
      }
      .top-actions a {
        padding: 3px 10px;
        font-size: 10px;
        border-radius: 12px;
        color: white;
      }
      .mobile-menu-btn {
        display: block;
        background: #DC2626;
        border: none;
        font-size: 26px;
        color: white;
        cursor: pointer;
        padding: 4px 12px;
        border-radius: 6px;
        min-width: 56px;
        text-align: center;
      }
      /* 滚动后按钮保持红色底色 */
      .top-bar.scrolled .top-actions a {
        color: var(--text-dark);
      }
      .top-bar.scrolled .mobile-menu-btn {
        background: #DC2626;
        color: white;
      }
      .navbar { 
        position: fixed;
        top: 98px; 
        left: 0;
        right: 0;
        background: transparent; 
        backdrop-filter: none; 
        box-shadow: none;
        z-index: 999;
      }
      /* 滚动后导航栏显示白底 */
      .navbar.scrolled {
        background: rgba(255,255,255,0.98);
        box-shadow: 0 2px 10px rgba(0,0,0,0.1);
      }
      .nav-container { padding: 0 10px; }
      .nav-menu li { padding: 15px 20px; }
      .nav-menu a { font-size: 14px; }
      .mobile-menu-btn { display: block; padding: 4px; font-size: 20px; }
      .nav-menu { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--bg-white); flex-direction: column; border-bottom: 1px solid var(--border-color); }
      .nav-menu.active { display: flex; }
      .hero-section { height: 100vh; margin-top: 0; }
      
      /* 移动端海报轮播 - 全屏高度 */
      .hero-slider {
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        height: 100vh;
      }
      .hero-slide {
        height: 100vh;
      }
      .hero-slide img {
        object-fit: cover;
        object-position: center center;
        z-index: 0;
      }
      .hero-slide::after {
        z-index: 1;
      }
      /* 移动端海报内容容器 - 居中显示 */
      .hero-slide .hero-content {
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        margin-left: 0;
        max-width: 100%;
        width: 100%;
        padding: 80px 20px 120px;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        z-index: 20;
        visibility: visible;
        opacity: 1;
      }
      /* 移动端海报文字元素始终显示 */
      .hero-slide .hero-content .hidden-during-video {
        opacity: 1;
        visibility: visible;
      }
      /* 移动端海报文字元素 - 覆盖全局 opacity: 0 */
      .hero-slide .hero-text h1,
      .hero-slide .hero-text .subtitle,
      .hero-slide .hero-meta,
      .hero-slide .hero-badge {
        opacity: 1;
      }
      /* 移动端海报文字样式 */
      .hero-text {
        max-width: 100%;
        text-align: center;
      }
      .hero-badge {
        font-size: 12px;
        padding: 8px 20px;
        margin-bottom: 20px;
        display: inline-block;
      }
      .hero-text h1 {
        font-size: 32px;
        line-height: 1.4;
        margin-bottom: 20px;
        color: white;
        text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
        text-align: center;
        width: 100%;
        display: block;
      }
      .hero-text h1 span {
        display: block;
        text-align: center;
        white-space: normal;
      }
      .hero-text .subtitle {
        font-size: 16px;
        margin-bottom: 30px;
        color: white;
        text-shadow: 1px 1px 3px rgba(0,0,0,0.5);
        text-align: center;
      }
      .hero-meta {
        display: flex;
        flex-direction: row;
        flex-wrap: nowrap;
        gap: 10px;
        margin-top: 25px;
        justify-content: center;
        align-items: center;
        width: auto;
      }
      .hero-meta-item {
        width: auto;
        flex-shrink: 0;
        display: inline-flex;
        flex-direction: row;
        align-items: center;
        justify-content: flex-start;
        gap: 8px;
        padding: 8px 14px;
        font-size: 12px;
        background: rgba(0,0,0,0.4);
        border-radius: 20px;
        color: white;
      }
      .hero-meta-item i {
        font-size: 14px;
        flex-shrink: 0;
      }
      .hero-meta-item span {
        text-align: left;
        white-space: nowrap;
      }
      
      /* 移动端视频容器淡出后降低层级，避免遮挡海报文字 */
      .hero-video-container.fade-out {
        z-index: -1;
        pointer-events: none;
      }
      /* 移动端视频容器 - 全屏显示竖屏视频 */
      .hero-video-container {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        inset: 0;
        width: 100vw;
        height: 100vh;
        z-index: 999;
      }
      /* 移动端海报模式：改为相对定位，让页面可滚动 */
      .hero-video-container.poster-mode {
        position: relative;
        z-index: 1;
        opacity: 1;
        height: 100vh;
      }
      /* 移动端竖屏视频 - 顶部对齐，完整显示 */
      .hero-video {
        object-fit: contain;
        object-position: top center;
        width: 100%;
        height: 100%;
      }
      /* 移动端视频播放时顶部横幅透明 */
      .hero-video-container.visible ~ .top-bar,
      body.video-playing .top-bar {
        background: transparent;
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
        box-shadow: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.2);
      }
      body.video-playing .top-bar::before,
      body.video-playing .top-bar::after {
        display: none;
      }
      /* 移动端视频播放时顶部文字白色 */
      body.video-playing .top-bar .top-logo-text,
      body.video-playing .top-bar .top-year,
      body.video-playing .top-bar .top-info-title,
      body.video-playing .top-bar .top-info-item,
      body.video-playing .top-bar .top-info-item span,
      body.video-playing .top-bar .top-info-item i {
        color: white;
      }
      body.video-playing .top-bar .top-logo img {
        filter: brightness(0) invert(1);
      }
      body.video-playing .top-bar .nav-menu a,
      body.video-playing .top-bar .mobile-menu-btn {
        color: white;
      }
      body.video-playing .top-bar .nav-menu a::after {
        background: white;
      }
      
      /* 展会链接 - 圆角矩形描边（使用更高优先级选择器） */
      .top-bar .nav-menu .nav-exhibition a {
        padding: 8px 16px;
        border-radius: 20px;
        transition: all 0.3s ease;
      }
      
      .top-bar .nav-menu .nav-exhibition-blue a {
        border: 2px solid rgba(0, 98, 174, 0.6);
        background: rgba(0, 98, 174, 0.1);
        transition: all 0.3s ease;
      }
      
      .top-bar .nav-menu .nav-exhibition-blue a:hover {
        background: rgba(0, 98, 174, 0.45);
        border-color: rgba(0, 98, 174, 1);
        box-shadow: 0 4px 12px rgba(0, 98, 174, 0.35);
        transform: translateY(-2px);
      }
      
      .top-bar .nav-menu .nav-exhibition-red a {
        border: 2px solid rgba(196, 30, 58, 0.6);
        background: rgba(196, 30, 58, 0.1);
        transition: all 0.3s ease;
      }
      
      .top-bar .nav-menu .nav-exhibition-red a:hover {
        background: rgba(196, 30, 58, 0.45);
        border-color: rgba(196, 30, 58, 1);
        box-shadow: 0 4px 12px rgba(196, 30, 58, 0.35);
        transform: translateY(-2px);
      }
      
      .top-bar .nav-menu .nav-exhibition-green a {
        border: 2px solid rgba(46, 125, 50, 0.6);
        background: rgba(46, 125, 50, 0.1);
        transition: all 0.3s ease;
      }
      
      .top-bar .nav-menu .nav-exhibition-green a:hover {
        background: rgba(46, 125, 50, 0.45);
        border-color: rgba(46, 125, 50, 1);
        box-shadow: 0 4px 12px rgba(46, 125, 50, 0.35);
        transform: translateY(-2px);
      }
      
      /* 展会按钮悬停时不显示下划线 */
      .top-bar .nav-menu .nav-exhibition a:hover::after {
        width: 0;
        background: transparent;
      }
      
      .hero-content { 
        padding: 80px 20px 0; 
      }
      
      /* 移动端进度条和指示点 */
      .hero-progress-container {
        bottom: 100px;
        width: 150px;
      }
      .hero-dots {
        bottom: 120px;
        gap: 10px;
      }
      .hero-dot {
        width: 8px;
        height: 8px;
      }
      
      /* 移动端底部矩形条 - 横向排列，适配不同浏览器 */
      .hero-features {
        display: flex;
        flex-direction: row;
        overflow-x: visible;
        scrollbar-width: none;
        -ms-overflow-style: none;
        height: auto;
        padding: 10px 8px;
        padding-bottom: calc(10px + env(safe-area-inset-bottom, 20px));
        bottom: 0;
        position: fixed;
        left: 0;
        right: 0;
        z-index: 1000;
      }
      .hero-features::-webkit-scrollbar {
        display: none;
      }
      .feature-item {
        flex: 1;
        min-width: 0;
        height: auto;
        padding: 6px 4px;
        gap: 2px;
        background: rgba(0, 0, 0, 0.5);
        backdrop-filter: blur(5px);
        border: 1px solid rgba(255, 255, 255, 0.2);
        flex-direction: column;
        flex-shrink: 0;
        align-items: stretch;
      }
      /* 第一行：icon + 中文两行 */
      .feature-row {
        display: flex;
        flex-direction: row;
        align-items: center;
        gap: 3px;
      }
      .feature-icon {
        width: 18px;
        height: 18px;
        font-size: 10px;
        flex-shrink: 0;
        display: flex;
        align-items: center;
        justify-content: center;
        background: rgba(255, 255, 255, 0.15);
        border-radius: 3px;
      }
      .feature-icon i {
        font-size: 10px;
      }
      .feature-item h4 {
        font-size: 9px;
        margin: 0;
        line-height: 1.15;
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        font-weight: 500;
      }
      .feature-item h4 span {
        display: block;
      }
      .feature-en {
        font-size: 5px;
        white-space: nowrap;
        overflow: visible;
        text-overflow: ellipsis;
        margin: 2px 0 0 0;
        text-align: center;
        width: 100%;
      }
      

      .section-header { margin-bottom: 40px; }
      .section-tag { padding: 6px 18px; font-size: 12px; }
      .section-header h2 { font-size: 26px; }
      .section-header p { font-size: 14px; }
      .exhibitions-grid { gap: 25px; }
      .exhibition-card { border-radius: 12px; }
      .exhibition-image { height: 180px; }
      .exhibition-content { padding: 20px; }
      .exhibition-content h3 { font-size: 17px; }
      .exhibition-content p { font-size: 13px; }
      .exhibition-meta { font-size: 12px; }
      .exhibition-badge { padding: 6px 14px; font-size: 11px; }
      
      /* 子页面在移动端需要更大的顶部间距 */
      #venueSubPage.exhibitions-section, #contactSubPage.exhibitions-section {
        margin-top: 0px;
        padding-top: 20px;
        padding-bottom: 50px;
      }
      .exhibitions-grid { grid-template-columns: 1fr; padding: 0 20px; }
      .modal-row { grid-template-columns: 1fr; }
      .modal-overlay { padding: 10px; }
      .modal-container { max-width: 95%; max-height: 85vh; margin: 0 auto; }
      .modal-header { padding: 15px 18px; }
      .modal-header h2 { font-size: 16px; }
      .modal-close { width: 30px; height: 30px; font-size: 18px; }
      .modal-body { padding: 15px; }
      .modal-section { margin-bottom: 20px; }
      .modal-section h3 { font-size: 15px; margin-bottom: 15px; }
      .modal-group { margin-bottom: 15px; }
      .modal-group input, .modal-group textarea, .modal-group select { padding: 9px 11px; font-size: 13px; }
      .modal-group textarea { min-height: 80px; }
      .modal-submit { padding: 12px; font-size: 14px; margin-top: 15px; }
    }

    /* 新闻中心板块 - 参考哈尔滨电气网站风格 */
    .news-center-section {
      padding: 80px 30px;
      background: #f8fafc;
      position: relative;
      overflow: visible;
      margin-top: 0;
      margin-bottom: 30px;
    }

    .news-container {
      max-width: 1800px;
      margin: 0 auto;
      display: grid;
      grid-template-columns: 800px 1fr;
      grid-template-rows: auto 1fr;
      grid-template-areas:
        "header header"
        "main list";
      gap: 20px 40px;
      padding: 0 20px;
      height: 450px;
    }

    /* 标题区域 - PC端占满整行 */
    .news-header {
      grid-area: header;
    }

    /* 新闻左侧 - 大图新闻 */
    .news-main {
      grid-area: main;
      position: relative;
      overflow: visible;
      border-radius: 12px;
      cursor: pointer;
      height: 100%;
    }

    .news-main-image {
      width: 100%;
      height: 100%;
      position: relative;
      overflow: visible;
    }

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

    .news-main:hover .news-main-image img {
      transform: scale(1.05);
    }

    /* 视频覆盖层 - 包含播放按钮和信息 */
    .video-overlay {
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      background: linear-gradient(transparent 40%, rgba(0, 0, 0, 0.85));
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      color: white;
      transition: all 0.3s ease;
      z-index: 10;
    }

    /* 播放按钮 */
    .play-button {
      width: 90px;
      height: 90px;
      background: rgba(255, 255, 255, 0.95);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
      margin-bottom: 20px;
      z-index: 10;
    }

    .play-button i {
      font-size: 42px;
      color: #0062AE;
      margin-left: 6px;
    }

    .news-main:hover .play-button {
      transform: scale(1.15);
      background: white;
    }

    .news-main:hover .play-button i {
      color: #004A85;
    }

    /* 视频信息区域 */
    .video-info {
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      padding: 40px 30px 30px;
    }

    .news-main-overlay {
      position: absolute;
      bottom: 0;
      left: 0;
      right: 0;
      background: linear-gradient(transparent, rgba(0, 0, 0, 0.85));
      padding: 40px 30px 30px;
      color: white;
    }

    .news-main-tag {
      display: inline-block;
      background: rgba(220, 38, 38, 0.9);
      padding: 6px 16px;
      border-radius: 20px;
      font-size: 12px;
      font-weight: 600;
      margin-bottom: 15px;
    }

    .news-main h3 {
      font-size: 24px;
      font-weight: 700;
      line-height: 1.4;
      margin: 0 0 12px 0;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: visible;
    }

    .news-main-date {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      opacity: 0.9;
    }

    .news-main-date i {
      font-size: 16px;
    }

    /* 新闻右侧容器 */
    .news-right {
      display: flex;
      flex-direction: column;
      height: 100%;
    }

    /* 新闻右侧 - 标题 */
    .news-header {
      margin-bottom: 12px;
      padding-bottom: 10px;
      border-bottom: 2px solid #e5e7eb;
    }

    /* 大父容器：控制整行布局 */
    .title-row {
      display: flex;
      align-items: center;
      gap: 15px;
      width: 100%;
    }

    /* 子容器：统一每个模块的基础样式 */
    .title-item {
      display: flex;
      align-items: center;
      height: 48px;
    }

    /* 左边中文模块 */
    .title-left h2 {
      font-size: 38px;
      font-weight: 800;
      color: #1e293b;
      margin: 0;
      line-height: 48px;
      white-space: nowrap;
    }

    /* 中间英文模块特殊样式 */
    .title-center {
      background: #DC2626;
      border-radius: 20px;
      padding: 0 18px;
      font-size: 12px;
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 1px;
      white-space: nowrap;
      line-height: 48px;
      color: white;
    }

    /* 右边副标题模块 */
    .title-right .section-desc {
      font-size: 12px;
      color: #64748b;
      margin: 0;
      line-height: 48px;
      white-space: nowrap;
    }

    /* 新闻右侧 - 新闻列表 */
    .news-list {
      grid-area: list;
      display: flex;
      flex-direction: column;
      gap: 0;
      flex: 1;
      justify-content: space-between;
    }

    .news-list-item {
      display: flex;
      align-items: center;
      gap: 20px;
      padding: 7px 0;
      text-decoration: none;
      border-bottom: 1px solid #e5e7eb;
      transition: all 0.3s ease;
      width: 100%;
      max-width: 950px;
    }

    .news-list-item:last-child {
      border-bottom: none;
    }

    .news-list-item:hover {
      transform: translateX(5px);
    }

    .news-list-date {
      flex-shrink: 0;
      text-align: center;
      padding: 0;
      color: #6b7280;
      min-width: 100px;
    }

    .news-list-date .day {
      display: block;
      font-size: 24px;
      font-weight: 700;
      line-height: 1;
      color: #0062AE;
    }

    .news-list-date .month {
      display: block;
      font-size: 13px;
      font-weight: 500;
      text-transform: uppercase;
      margin-top: 2px;
      color: #6b7280;
    }

    .news-list-content {
      flex: 1;
      min-width: 0;
    }

    .news-list-title {
      font-size: 22px;
      font-weight: 400;
      color: #1e293b;
      line-height: 1.3;
      margin: 0;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: visible;
      transition: color 0.3s;
    }

    .news-list-item:hover .news-list-title {
      color: #1e293b;
    }

    .news-list-meta {
      display: none;
    }

    /* 新闻中心板块 - 移动端适配 */
    @media (max-width: 1024px) {
      .news-container {
        grid-template-columns: 1fr;
        max-width: 800px;
        height: auto;
      }

      .news-main-image {
        height: 400px;
      }



      .news-header {
        flex-wrap: wrap;
      }

      .news-header h2 {
        font-size: 28px;
      }
    }

    @media (max-width: 768px) {
      .news-center-section {
        padding: 10px 15px;
        margin-top: 0;
        margin-bottom: 20px;
      }

      /* 移动端新闻容器 - 使用flexbox重排顺序 */
      .news-container {
        display: flex;
        flex-direction: column;
        height: auto;
        gap: 15px;
        padding: 0;
        width: 100%;
        max-width: 100%;
      }

      /* 标题在最上面 */
      .news-header {
        order: 1;
        flex-direction: row;
        flex-wrap: wrap;
        gap: 10px;
        margin-bottom: 5px;
        padding-bottom: 10px;
        text-align: center;
        justify-content: center;
      }

      /* 图片在标题下方 */
      .news-main {
        order: 2;
        width: 100%;
        max-width: 100%;
        margin: 0 auto;
        border-radius: 12px;
        overflow: visible;
      }

      /* 新闻列表在最下面 */
      .news-list {
        order: 3;
      }

      .news-main-image {
        height: 260px;
      }

      .news-main-overlay {
        padding: 25px 20px;
      }

      /* 移动端标题样式统一 */
      .title-row {
        flex-wrap: wrap;
        align-items: flex-start;
        gap: 10px;
      }
      .title-item {
        height: auto;
      }
      .title-left {
        flex-direction: column;
        align-items: flex-start;
      }
      .title-left h2 {
        font-size: 26px;
        line-height: 1.2;
        margin-bottom: 0;
      }
      .title-center {
        height: 24px;
        line-height: 24px;
        font-size: 11px;
        padding: 0 12px;
      }
      .title-right {
        flex-basis: 100%;
        width: 100%;
        max-width: 100%;
        text-align: left;
        justify-content: flex-start;
        margin-top: 2px;
        padding-right: 15px;
      }
      .title-right .section-desc {
        font-size: 12px;
        line-height: 1.5;
        text-align: left;
        white-space: normal;
        word-break: break-all;
      }

      .news-main h3 {
        font-size: 18px;
      }

      .news-header h2 {
        font-size: 26px;
      }

      .news-header .section-tag {
        font-size: 11px;
        padding: 6px 12px;
      }

      .news-header .section-desc {
        font-size: 12px;
        flex-basis: 100%;
      }

      .news-main-image img {
        object-fit: cover;
        object-position: center;
      }

      .news-list-item {
        padding: 8px 0;
      }

      .news-list-date {
        padding: 0;
        min-width: 85px;
      }

      .news-list-date .day {
        font-size: 22px;
        color: #0062AE;
      }

      .news-list-date .month {
        font-size: 11px;
        color: #6b7280;
      }

      .news-list-title {
        font-size: 15px;
      }
    }

    /* 合作单位板块 - 横向排列 + 鼠标反向移动 */
    .partners-section {
      padding: 60px 30px;
      background: #ffffff;
      position: relative;
    }

    .partners-section .section-header {
      text-align: left;
      max-width: 1800px;
      margin: 0 auto 30px auto;
    }

    .partners-section .title-left h2 {
      font-size: 38px;
      font-weight: 800;
      color: #1e293b;
      margin: 0;
      line-height: 48px;
      white-space: nowrap;
    }

    .partners-track-container {
      width: 100%;
      margin: 0 auto;
      position: relative;
      padding: 40px 20px;
      overflow: hidden;
      box-sizing: border-box;
    }

    .partners-track {
      display: flex;
      gap: 20px;
      align-items: center;
      transition: transform 0.3s ease-out;
      min-width: max-content;
      transform: translateX(-200px);
    }

    /* 底纹区域：鼠标经过logo时显示浅灰色底纹 */
    .partner-watermark {
      position: absolute;
      right: 350px;
      top: 50%;
      transform: translateY(-50%);
      width: 500px;
      height: 500px;
      background-size: contain;
      background-repeat: no-repeat;
      background-position: center;
      background-color: transparent;
      border: none;
      opacity: 0;
      transition: opacity 0.3s ease;
      z-index: 0;
      pointer-events: none;
    }

    .partner-watermark.active {
      opacity: 0.2;
    }

    .partner-card {
      flex: 0 0 auto;
      width: 180px;
      height: 180px;
      text-align: center;
      cursor: pointer;
      transition: all 0.3s ease;
      position: relative;
      z-index: 10;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
    }

    .partner-logo {
      background: transparent;
      border-radius: 12px;
      overflow: visible;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
      transition: all 0.3s ease;
    }

    .partner-logo img {
      max-width: 90%;
      max-height: 90%;
      object-fit: contain;
      transition: transform 0.3s ease;
      height: auto;
      display: block;
    }

    .partner-info {
      margin-top: 10px;
      padding: 0 10px;
      width: 100%;
      text-align: center;
    }

    .partner-info h4 {
      font-size: 13px;
      font-weight: 600;
      color: #1e293b;
      line-height: 1.4;
      transition: color 0.3s ease;
      white-space: nowrap;
      overflow: visible;
      text-overflow: ellipsis;
    }

    /* 合作单位响应式布局 */
    @media (max-width: 768px) {
      .partners-section {
        padding: 40px 20px;
      }

      /* 移动端标题样式统一 - 合作单位 */
      .partners-section .title-row {
        flex-wrap: wrap;
        align-items: flex-start;
        gap: 10px;
      }
      .partners-section .title-item {
        height: auto;
      }
      .partners-section .title-left {
        flex-direction: column;
        align-items: flex-start;
      }
      .partners-section .title-left h2 {
        font-size: 26px;
        line-height: 1.2;
        margin-bottom: 0;
      }
      .partners-section .title-center {
        height: 24px;
        line-height: 24px;
        font-size: 11px;
        padding: 0 12px;
      }
      .partners-section .title-right {
        flex-basis: 100%;
        width: 100%;
        max-width: 100%;
        text-align: left;
        justify-content: flex-start;
        margin-top: 2px;
        padding-right: 15px;
      }
      .partners-section .title-right .section-desc {
        font-size: 12px;
        line-height: 1.5;
        text-align: left;
        white-space: normal;
        word-break: break-all;
      }

      /* 移动端logo容器距离标题5px */
      .partners-track-container {
        padding: 5px 0 20px 0;
      }

      .partners-track {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 8px;
        padding: 8px;
        overflow-x: visible;
        width: 100%;
        min-width: auto;
        box-sizing: border-box;
      }

      .partner-card {
        width: 100%;
        height: auto;
        padding: 3px;
        box-sizing: border-box;
      }

      .partner-logo {
        height: 50px;
        width: 100%;
        box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
      }

      .partner-logo img {
        max-width: 80%;
        max-height: 80%;
      }

      .partner-info {
        margin-top: 4px;
        width: 100%;
      }

      .partner-info h4 {
        font-size: 9px;
        line-height: 1.3;
        white-space: nowrap;
        overflow: visible;
        text-overflow: ellipsis;
        text-align: center;
      }
    }