/* 基础样式 */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: -apple-system, BlinkMacSystemFont, 
                        'Segoe UI', Roboto, Oxygen, Ubuntu, 
                        Cantarell, 'Open Sans', 'Helvetica Neue', 
                        sans-serif;
        }

        html, body {
            height: 100%;
            scroll-behavior: smooth;
        }

        body {
            overflow-x: hidden;
        }


 /* 导航容器 */
 .nav-container {
            position: fixed;
            top: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(20px);
            z-index: 1000;
            border-bottom: 1px solid rgba(0, 0, 0, 0.1);
			
        }

        /* 导航主体 */
        .nav-wrapper {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 主导航栏 */
        .main-nav {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 60px;
        }

        .logo {
            font-size: 24px;
            font-weight: 600;
            color: #000;
            text-decoration: none;
        }

        /* 导航菜单 */
        .nav-menu {
            display: flex !important;
            flex-direction: row !important;
            flex-wrap: nowrap !important;
            list-style: none;
            height: 100%;
            margin: 0;
            padding: 0;
        }
        .nav-item {
            position: relative;
            padding: 0 20px;
            height: 100%;
            display: flex;
            align-items: center;
            white-space: nowrap;
        }
        .nav-link {
            text-decoration: none;
            color: #666;
            font-size: 14px;
            transition: color 0.3s;
            position: relative;
            white-space: nowrap;
        }

        .nav-link:hover {
            color: #000;
        }

        /* 横向下拉菜单 */
        .dropdown-horizontal {
            position: absolute;
            top: 100%;
            left: 0;
            width: 200vw;
            margin-left: -100vw;
            left: 50%;
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(30px);
            display: none;
            padding: 40px 0;
            box-shadow: 0 20px 30px rgba(0,0,0,0.1);
            border-top: 1px solid rgba(0,0,0,0.1);
        }

        .dropdown-content {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 40px;
            padding: 0 20px;
        }

        .menu-section h3 {
            font-size: 12px;
            color: #666;
            margin-bottom: 15px;
            font-weight: 500;
            text-transform: uppercase;
        }

        .menu-section ul {
            list-style: none;
        }

        .menu-section li {
            margin-bottom: 12px;
        }

        .menu-section a {
            color: #000;
            text-decoration: none;
            font-size: 16px;
            transition: opacity 0.3s;
        }

        .menu-section a:hover {
            opacity: 0.7;
        }

        /* 交互效果 */
        .nav-item:hover .dropdown-horizontal {
            display: block;
            animation: menuSlide 0.3s cubic-bezier(0.23, 1, 0.32, 1);
        }

        @keyframes menuSlide {
            from {
                opacity: 0;
                transform: translateY(-10px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

		        /* 第一个轮播样式 */
				.carousel-container {
            position: relative;
            width: 100%;
            height: 80vh;
            overflow: hidden;
            background: #000;
			top: 61px;
        }

        .carousel-track {
            display: flex;
            height: 100%;
            transition: transform 0.8s cubic-bezier(0.23, 1, 0.32, 1);
        }

        .carousel-item {
            min-width: 100%;
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .carousel-image {
            max-width: 1200px;
            width: 90%;
            height: auto;
            opacity: 0.9;
            transition: opacity 0.3s;
        }

        .carousel-caption {
            position: absolute;
            bottom: 15%;
            text-align: center;
            color: white;
        }

        .caption-title {
            font-size: 3.5rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }

        .caption-links a {
            color: #2997ff;
            text-decoration: none;
            font-size: 1.2rem;
            margin: 0 1rem;
        }

        .carousel-controls {
            position: absolute;
            bottom: 30px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: 10px;
        }

        .carousel-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.3);
            border: none;
            cursor: pointer;
            transition: background 0.3s;
        }

        .carousel-dot.active {
            background: rgba(255, 255, 255, 0.9);
        }

        .nav-arrow {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            background: none;
            border: none;
            color: rgba(255, 255, 255, 0.8);
            font-size: 3rem;
            cursor: pointer;
            padding: 20px;
            transition: opacity 0.3s;
        }

        .nav-arrow:hover {
            opacity: 0.7;
        }

        .arrow-left {
            left: 30px;
        }

        .arrow-right {
            right: 30px;
        }

        @keyframes menuSlide {
            from {
                opacity: 0;
                transform: translateY(-10px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* 新轮播图样式 */
        .carousel-container {
            position: relative;
            overflow: hidden;
            width: 100%;
            height: 100vh;
            margin-bottom: 50px; /* 增加与下方模块的间距 */
        }

        .carousel-track {
            display: flex;
            transition: transform 0.8s cubic-bezier(0.23, 1, 0.32, 1);
        }

        .carousel-item {
            min-width: 100%;
            position: relative;
            overflow: hidden;
        }

        .carousel-item img {
            width: 100%;
            height: 100vh;
            object-fit: cover;
            transition: transform 1.2s ease-in-out;
        }

        .carousel-item:hover img {
            transform: scale(1.1); /* 鼠标悬停时动态缩放 */
        }

        .carousel-caption {
            position: absolute;
            bottom: 20%;
            left: 10%;
            color: white;
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
            background: linear-gradient(to bottom, rgba(0, 0, 0, 0.5), transparent);
            padding: 1rem 2rem;
            border-radius: 12px;
            animation: fadeIn 1.5s ease-in-out;
        }

        .carousel-caption h2 {
            font-size: 3.5rem;
            margin-bottom: 1rem;
        }

        .carousel-caption p {
            font-size: 1.5rem;
        }

        .carousel-control {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            background: rgba(0, 0, 0, 0.5);
            color: white;
            border: none;
            font-size: 2rem;
            padding: 1rem;
            cursor: pointer;
            z-index: 10;
            transition: background 0.3s ease;
        }

        .carousel-control:hover {
            background: rgba(0, 0, 0, 0.8);
        }

        .carousel-control.prev {
            left: 10px;
        }

        .carousel-control.next {
            right: 10px;
        }

        .carousel-indicators {
            position: absolute;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: 10px;
        }

        .indicator {
            width: 12px;
            height: 12px;
            background: rgba(255, 255, 255, 0.5);
            border-radius: 50%;
            cursor: pointer;
            transition: background 0.3s ease;
        }

        .indicator.active {
            background: rgba(0, 0, 0, 0.8); /* 当前页指示器变暗 */
        }

        .indicator:hover {
            background: rgba(255, 255, 255, 0.8);
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }


        section {
            height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 0 20px;
            color: white;
            position: relative;
        }

        .hero {
            background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.3)), 
                        url('https://images.unsplash.com/photo-1586082207401-0d0a5a8c8f9e') center/cover;
            margin-top: 60px; /* 确保内容在导航栏下方显示 */
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }

        .hero.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .content {
            max-width: 800px;
        }

        h1 {
            font-size: 4rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }

        p {
            font-size: 1.2rem;
            line-height: 1.6;
            margin-bottom: 2rem;
        }

        .content img {
            width: 100%;
            max-width: 400px;
            border-radius: 20px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
            margin-bottom: 1.5rem;
        }

        .nav-container {
            position: fixed;
            top: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(10px);
            z-index: 1000;
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
        }

        .nav-wrapper {
            max-width: 1200px;
            margin: 0 auto;
            padding: 10px 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .main-nav .logo {
            text-decoration: none;
            color: #333;
            font-size: 1.5rem;
            font-weight: bold;
        }

        .nav-menu {
            list-style: none;
            display: flex;
            margin: 0;
            padding: 0;
        }

        .nav-item {
            margin: 0 10px;
        }

        .nav-link {
            text-decoration: none;
            color: #333;
            font-size: 1rem;
            transition: color 0.3s;
        }

        .nav-link:hover {
            color: #0071e3;
        }

        footer {
            background: #1d1d1f;
            color: #f5f5f7;
            padding: 20px;
            text-align: center;
        }

        footer a {
            color: #f5f5f7;
            text-decoration: none;
            margin: 0 10px;
        }

        footer a:hover {
            text-decoration: underline;
        }

        .timeline {
            margin-top: 20px;
            text-align: left;
        }

        .timeline h2 {
            font-size: 1.5rem;
            margin-bottom: 10px;
        }

        .timeline ul {
            list-style: none;
            padding-left: 0;
        }

        .timeline li {
            margin-bottom: 10px;
            font-size: 1rem;
        }

        .hero h1, .hero p {
            white-space: nowrap; /* 防止文字换行 */
            overflow: hidden; /* 隐藏溢出内容 */
            text-overflow: ellipsis; /* 添加省略号 */
        }

        .content-block {
            display: flex; /* 使用flex布局 */
            align-items: center;
            gap: 20px; /* 图片和文字之间的间距 */
        }

        .content-image {
            width: 300px;
            height: 300px;
            border-radius: 12px !important; /* 强制应用圆角 */
            object-fit: contain;
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
        }

        .content-text {
            flex: 1; /* 文字占据另一部分空间 */
            padding: 20px;
        }

        section#xb {
            background: #222;
        }

        section#zyz {
            background: #232323;
        }

        section#sy {
            background: #242424;
        }

        section#yln {
            background: #252525;
        }

        section#jjc {
            background: #262626;
        }

        section#cw {
            background: #272727;
        }

        section#hjd {
            background: #282828;
        }

        section#lqy {
            background: #292929;
        }

        section#yh {
            background: #2a2a2a;
        }

        section#gugan-10 {
            background: #2b2b2b;
        }

        section#gugan-11 {
            background: #2c2c2c;
        }
        /* 移动端菜单按钮和菜单样式 */
        @media (min-width: 769px) {
            /* PC端时隐藏移动端导航 */
            .mobile-header,
            .mobile-menu {
                display: none !important;
            }
            
            /* PC端时显示主导航 */
            .nav-container {
                display: block;
            }
        }

        @media (max-width: 768px) {
            /* 移动端时隐藏PC导航 */
            .nav-container {
                display: none !important;
            }
            
            /* 移动端时显示移动导航 */
            .mobile-header {
                display: flex !important;
            }
        }
        @media (max-width: 768px) {
            .main-nav, .nav-menu, .nav-login {
                display: none !important;
            }
            .mobile-header {
                display: flex;
                align-items: center;
                justify-content: space-between;
                height: 60px;
                padding: 0 16px;
                background: rgba(255,255,255,0.95);
                position: fixed;
                top: 0;
                left: 0;
                width: 100vw;
                z-index: 1200;
                border-bottom: 1px solid #eee;
            }
            .mobile-logo {
                font-size: 16px;
                font-weight: 600;
                color: #222;
                text-decoration: none;
                flex: 1;
                white-space: nowrap;
                overflow: hidden;
                text-overflow: ellipsis;
            }
            .mobile-menu-btn {
                background: none;
                border: none;
                font-size: 28px;
                color: #222;
                cursor: pointer;
                padding: 8px;
                margin-left: 90px;
            }
            .mobile-menu {
                display: none;
                position: fixed;
                top: 0;
                left: 0;
                width: 100vw;
                height: 100vh;
                background: #222;
                color: #fff;
                z-index: 2000;
                flex-direction: column;
                padding-top: 60px;
                transition: transform 0.3s cubic-bezier(.4,0,.2,1);
                overflow-y: auto; /* 允许菜单内容滚动 */
                -webkit-overflow-scrolling: touch; /* iOS 惯性滚动 */
            }
            .mobile-menu.active {
                display: flex;
            }
            body.mobile-menu-open {
                overflow: hidden;
                position: fixed;
                width: 100vw;
            }
            .mobile-menu-close {
                position: absolute;
                top: 16px;
                right: 20px;
                background: none;
                border: none;
                color: #fff;
                font-size: 28px;
                cursor: pointer;
                z-index: 2100;
            }
            .mobile-menu-list {
                list-style: none;
                padding: 0;
                margin: 0;
                width: 100%;
            }
            .mobile-menu-list li {
                border-bottom: 1px solid rgba(255,255,255,0.08);
            }
            .mobile-menu-link {
                display: block;
                color: #fff;
                text-decoration: none;
                font-size: 18px;
                padding: 18px 28px;
                width: 100%;
                transition: background 0.2s;
            }
            .mobile-menu-link:hover {
                background: rgba(255,255,255,0.08);
            }
            .mobile-menu-dropdown {
                background: #222;
                padding-left: 32px;
            }
            .mobile-menu-dropdown a {
                color: #fff;
                font-size: 16px;
                display: block;
                padding: 12px 0;
                text-decoration: none;
            }
            .mobile-menu-dropdown a:hover {
                text-decoration: underline;
            }
            body.mobile-menu-open {
                overflow: hidden;
            }
            .carousel-container {
                margin-top: 60px !important;
            }
            .carousel-caption {
                position: absolute;
                left: 0;
                right: 0;
                bottom: 0;
                width: 100%;
                max-width: 100%;
                padding: 0.7rem 0.7rem 0.9rem 0.7rem;
                background: rgba(0,0,0,0.32);
                text-align: left;
                color: #fff;
                animation: fadeIn 1.5s ease-in-out;
            }
            .carousel-caption h2 {
                font-size: 1.15rem;
                margin-bottom: 0.5rem;
                font-weight: 700;
                color: #fff;
                text-shadow: 0 2px 6px rgba(0,0,0,0.25);
                line-height: 1.3;
            }
            .carousel-caption p {
                font-size: 0.92rem;
                margin-bottom: 0.7rem;
                line-height: 1.5;
                color: #fff;
                text-shadow: 0 1px 3px rgba(0,0,0,0.18);
            }
            .read-more {
                padding: 7px 14px;
                font-size: 0.92rem;
            }
            .content-block {
                flex-direction: column; /* 垂直排列图片和文字 */
                align-items: center;
                gap: 10px; /* 缩小间距 */
            }

            .content-image {
                width: 40%; /* 调整图片宽度为屏幕宽度的70% */
                height: auto; /* 保持图片比例 */
                border-radius: 8px; /* 调整圆角 */
            }

            .content-text {
                padding: 10px; /* 缩小文字区域的内边距 */
                text-align: center; /* 居中文本 */
            }

            .content-text h1 {
                font-size: 1.5rem; /* 调整标题字体大小 */
                margin-bottom: 10px;
            }

            .content-text p {
                font-size: 1rem; /* 调整描述字体大小 */
                margin-bottom: 10px;
            }

            .timeline h2 {
                font-size: 1.2rem; /* 调整时间轴标题字体大小 */
                margin-bottom: 10px;
            }

            .timeline ul {
                padding-left: 20px; /* 增加列表缩进 */
            }

            .timeline li {
                font-size: 0.9rem; /* 调整列表字体大小 */
                margin-bottom: 8px; /* 缩小列表项间距 */
            }

            .hero {
                padding: 20px 10px; /* 缩小模块的内边距 */
                min-height: auto; /* 取消固定高度 */
            }
        }
        @media (max-width: 768px) {
  .mobile-logo-en {
    font-size: 8px !important;
    max-width: 100vw !important;
  }
}

/* ===== 科研骨干介绍：简约亮色版（覆盖本页旧深色、省略号、固定视口高度） ===== */
body.hzbgs-page-gugan-intro.hzbgs-site {
  background: #f5f5f7;
}

body.hzbgs-page-gugan-intro .hzbgs-main > section.hero {
  height: auto !important;
  min-height: 100vh;
  display: block;
  text-align: left;
  color: #1d1d1f;
  padding: 96px 24px 88px;
  margin-top: 0 !important;
  background: #f6f7fb !important;
  background-image: none !important;
  position: relative;
  overflow: hidden;
  opacity: 1 !important;
  transform: none !important;
}

body.hzbgs-page-gugan-intro .hzbgs-main > section.hero:nth-child(even) {
  background: #f0f1f6 !important;
}

body.hzbgs-page-gugan-intro .hzbgs-main > section.hero::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 113, 227, 0.22), transparent);
  pointer-events: none;
}

body.hzbgs-page-gugan-intro .hzbgs-main > section.hero .content-block {
  max-width: 1080px;
  width: 100%;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(240px, 300px) minmax(0, 1fr);
  gap: 40px 56px;
  align-items: start;
}

body.hzbgs-page-gugan-intro .hzbgs-main .content-image {
  width: 100%;
  max-width: 300px;
  height: auto;
  max-height: min(440px, 62vh);
  margin: 0 auto;
  display: block;
  object-fit: contain;
  border-radius: 22px;
  padding: 14px;
  background: #fff;
  border: 1px solid rgba(210, 210, 215, 0.95);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
}

body.hzbgs-page-gugan-intro .hzbgs-main .content-text {
  padding: 6px 0 0;
}

body.hzbgs-page-gugan-intro .hero h1,
body.hzbgs-page-gugan-intro .hero p,
body.hzbgs-page-gugan-intro .hzbgs-main .content-text h1,
body.hzbgs-page-gugan-intro .hzbgs-main .content-text > p {
  white-space: normal !important;
  overflow: visible !important;
  text-overflow: unset !important;
}

body.hzbgs-page-gugan-intro .hzbgs-main .content-text h1 {
  font-size: clamp(2rem, 3.6vw, 2.85rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: #1d1d1f;
  margin-bottom: 0.45rem;
  line-height: 1.08;
}

body.hzbgs-page-gugan-intro .hzbgs-main .content-text > p {
  font-size: 0.98rem;
  color: rgba(60, 60, 67, 0.82);
  margin-bottom: 1.65rem;
  line-height: 1.55;
  font-weight: 500;
}

body.hzbgs-page-gugan-intro .hzbgs-main .timeline {
  margin-top: 0.35rem;
  text-align: left;
}

body.hzbgs-page-gugan-intro .hzbgs-main .timeline h2 {
  display: none;
}

body.hzbgs-page-gugan-intro .hzbgs-main .timeline ul {
  list-style: none;
  padding: 0;
  margin: 0;
  padding-top: 0.9rem;
  border-top: 1px solid rgba(0, 0, 0, 0.08);
}

body.hzbgs-page-gugan-intro .hzbgs-main .timeline li {
  padding: 0.65rem 0 0.65rem 1.05rem;
  margin-bottom: 0.35rem;
  font-size: 0.95rem;
  line-height: 1.72;
  color: rgba(29, 29, 31, 0.9);
  border-left: 2px solid rgba(0, 113, 227, 0.35);
}

body.hzbgs-page-gugan-intro .hzbgs-main .timeline li:last-child {
  margin-bottom: 0;
}

@media (max-width: 900px) {
  body.hzbgs-page-gugan-intro .hzbgs-main > section.hero {
    padding: 88px 18px 64px;
  }

  body.hzbgs-page-gugan-intro .hzbgs-main > section.hero .content-block {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  body.hzbgs-page-gugan-intro .hzbgs-main .content-image {
    max-width: 260px;
  }

  body.hzbgs-page-gugan-intro .hzbgs-main .content-text {
    text-align: center;
  }

  body.hzbgs-page-gugan-intro .hzbgs-main .timeline {
    text-align: left;
  }
}

/* ===== gugan-intro 顶栏重叠修复（覆盖本页旧的 nav 样式） ===== */
body.hzbgs-page-gugan-intro .nav-container {
  position: sticky !important;
  top: 0 !important;
}

body.hzbgs-page-gugan-intro .nav-wrapper {
  max-width: min(var(--container), 100%) !important;
  width: 100% !important;
  padding-left: max(20px, env(safe-area-inset-left, 0px)) !important;
  padding-right: max(20px, env(safe-area-inset-right, 0px)) !important;
  box-sizing: border-box !important;
}

body.hzbgs-page-gugan-intro .main-nav {
  display: flex !important;
  flex-wrap: nowrap !important;
  align-items: center !important;
  justify-content: flex-start !important;
  gap: min(20px, 2.5vw) !important;
  row-gap: 8px !important;
  height: auto !important;
  min-height: 60px !important;
  padding: 12px 0 !important;
  width: 100% !important;
  box-sizing: border-box !important;
}

/* 顶栏内公司名由全站 .main-nav > div:first-child 规则控制换行与完整展示 */
body.hzbgs-page-gugan-intro .main-nav .logo {
  font-size: 17px !important;
  font-weight: 650 !important;
  letter-spacing: -0.01em !important;
  color: var(--text0) !important;
  line-height: 1.15 !important;
}

body.hzbgs-page-gugan-intro .main-nav .logo-en {
  display: block !important;
  margin-top: 3px !important;
  font-size: 9px !important;
  font-weight: 400 !important;
  line-height: 1.2 !important;
  letter-spacing: 0.04em !important;
  color: var(--text2) !important;
}

body.hzbgs-page-gugan-intro .nav-menu {
  display: flex !important;
  flex-direction: row !important;
  flex-wrap: nowrap !important;
  align-items: center !important;
  list-style: none !important;
  margin: 0 !important;
  margin-left: 0 !important;
  padding: 0 !important;
  gap: 6px !important;
  justify-content: flex-end !important;
  flex-shrink: 0 !important;
  min-width: 0 !important;
}

body.hzbgs-page-gugan-intro .nav-item {
  padding: 0 4px !important;
  height: auto !important;
  display: flex !important;
  align-items: center !important;
  flex-shrink: 0 !important;
}

body.hzbgs-page-gugan-intro .nav-link {
  display: inline-flex !important;
  align-items: center !important;
  padding: 10px 12px !important;
  border-radius: 999px !important;
  border: 1px solid transparent !important;
  color: rgba(29, 29, 31, 0.86) !important;
  font-size: 14px !important;
  white-space: nowrap !important;
}

body.hzbgs-page-gugan-intro .nav-link:hover {
  color: var(--text0) !important;
}