/* 
  SimWorld Landing Page Styles - 自适应媒体版本
  专门优化视频和图片的响应式显示
  
  圆角规范 (统一使用小圆角矩形，专业现代风格):
  - 按钮: 8px (hero-nav-link, nav-link, scroll-indicator)
  - 卡片: 12px (feature-card, video-card, media-container)
  - 小元素: 6px (copy-success, 标签等)
*/

/* === 基础重置 === */
:root { 
  /* 导航栏高度 */
  --nav-h: 4.375rem;  /* 70px / 16 = 4.375rem */
  --nav-h-mobile: 5rem;  /* 80px / 16 = 5rem，移动端稍大 */
  
  /* 主题色 */
  --primary-color: #667eea;
  --primary-dark: #5568d3;
  --secondary-color: #7282be;
  
  /* 背景色 */
  --bg-gradient-1: linear-gradient(135deg, #f6f9fc 0%, #e9f2ff 50%, #dce6f2 100%);
  --bg-gradient-2: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  --bg-gradient-3: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --bg-light: #ffffff;
  --bg-bar: #f3f6f5;
  --bg-white: #ffffff;
  
  /* 文字颜色 */
  --text-primary: #2d3748;
  --text-secondary: #4a5568;
  --text-muted: #718096;
  
  /* 边框和阴影 */
  --border-color: #e2e8f0;
  --shadow-sm: 0 4px 16px rgba(0,0,0,0.06);
  --shadow-md: 0 8px 25px rgba(0,0,0,0.1);
  --shadow-lg: 0 15px 40px rgba(0,0,0,0.15);
  
  /* 响应式断点 */
  --mobile-breakpoint: 768px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;  /* 保持基础字体不变 */
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-white);
  overflow-x: hidden;
}

html, body {
  scroll-snap-type: none;  /* 完全禁用滚动吸附 */
  scroll-padding-top: 0;
  scroll-padding-bottom: 0;
}

.section-snap {
  scroll-snap-align: none;  /* 禁用吸附对齐 */
}

/* === 容器系统 === */
.container {
  width: 100%;
  max-width: 1200px;   /* 保持你之前的最大宽度限制 */
  margin: 0 auto;
  padding: 0 20px;
  display: flex;       /* 弹性布局 */
  flex-direction: column;    /* 主轴改为纵向，从上到下 */
  justify-content: center; /* 水平居中 */
  align-items: center;     /* 垂直居中 */
}

/* === hero区域 === */
.hero-section {
  position: relative;
  height: 100vh;
  width: 100vw;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: var(--bg-gradient-1);
  overflow: hidden;
  will-change: transform, opacity;
  padding-top: var(--nav-h);  /* 为固定导航栏留出空间 */
}

/* 移动端 hero 区域优化 - 与其他section保持一致 */
@media (max-width: 1000px) {  /* 扩大到 1000px 以包含所有移动设备 */
  .hero-section {
    height: 70vh !important;  /* 设置固定高度，确保背景图片有足够空间，文字只占约1/3 */
    min-height: 70vh !important;
    width: 100% !important;  /* 使用正常宽度，不再铺满屏幕 */
    max-width: 100% !important;
    padding-top: var(--nav-h-mobile) !important;  /* 为固定导航栏留出空间 */
    padding-left: 0 !important;
    padding-right: 0 !important;
    padding-bottom: 0 !important;
    margin-top: 0 !important;
    margin-bottom: 0 !important;
    justify-content: center !important;  /* 垂直居中，与桌面版一致 */
    align-items: center !important;
  }
  
  .hero-content {
    padding: 0 20px !important;  /* 与.container的padding保持一致 */
    margin: 0 auto !important;
    width: 100% !important;
    max-width: 1200px !important;  /* 与其他section的container保持一致 */
    margin-top: 0 !important;  /* 移除负margin，让内容自然居中 */
    position: relative !important;
    z-index: 2 !important;
  }
  
  /* 移动端标题区域减少padding，使文字区域更紧凑 */
  .hero-title-area {
    padding: 1.5rem 0 !important;  /* 减少垂直padding */
  }
  
  /* 移动端feature区域减少margin */
  .hero-features {
    margin-top: 1.5rem !important;  /* 减少顶部margin */
  }
  
  /* 移动端背景图片也需要限制在容器内，高度与hero-section一致 */
  .hero-section .hero-background-img {
    position: absolute !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    height: 100% !important;
    max-width: 100% !important;
    object-fit: cover !important;
    object-position: center center !important;
    z-index: 0 !important;
  }
  
  /* 移动端标题区域背景也使用容器宽度 */
  .hero-title-area .hero-title-bg {
    width: 100% !important;
    left: 0 !important;
    transform: none !important;
  }
  
  /* 移动端标题字体大小调整 - 适应容器宽度 */
  .hero-title h1 {
    font-size: clamp(2rem, 6vw, 3rem) !important;  /* 移动端使用更小的字体 */
  }
  
  .hero-title h2 {
    font-size: clamp(1.2rem, 4vw, 1.8rem) !important;  /* 移动端副标题也相应缩小 */
  }
  
  /* 移动端feature标题字体大小调整 - 与主标题保持比例关系 */
  .hero-feature-titles h3 {
    font-size: clamp(0.9rem, 2.5vw, 1.1rem) !important;  /* 移动端使用更小的字体，保持与h1的比例 */
  }
}

.hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.3);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 2rem;
  animation: fadeInUp 1.2s ease-out;
  width: 100%;
  max-width: 1500px;
}

.hero-title {
  margin-bottom: 0.5rem;
}

.hero-title img {
  height: clamp(80px, 15vmin, 140px);
  width: auto;
  margin: 0 auto 1rem;
  display: block;
  filter: drop-shadow(2px 4px 4px rgba(0,0,0,0.1));
}

.hero-title h1 {
  font-size: clamp(2.5rem, 15vw, 5.5rem);  /* 增大字体 */
  font-weight: 700;
  line-height: 1.1;
  text-shadow: 0 2px 8px rgba(0,0,0,0.15);
  margin: 0;
  color: var(--text-primary);
}

.hero-title h2 {
  font-size: clamp(1.5rem, 8vw, 3.2rem);  /* 进一步增大副标题字体 */
  font-weight: 400;
  line-height: 1.5;
  color: var(--text-secondary);
  text-shadow: 0 1px 4px rgba(0,0,0,0.1);
  margin-top: 1rem;
}

/* Hero 区域的三个关键小标题样式 */
.hero-features {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.hero-feature-titles {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 3rem;
  flex-wrap: wrap;
}

.hero-feature-titles h3 {
  font-size: clamp(1.2rem, 3vw, 1.8rem);
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
  text-align: center;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* 移动端优化hero feature标题 */
@media (max-width: 1000px) {
  .hero-features {
    padding: 0 1rem;
    margin-top: 2rem !important;
  }
  
  .hero-feature-titles {
    gap: 1.5rem;
    flex-direction: column;
  }
  
  /* feature标题字体大小已在上面统一设置，这里不再重复 */
}

/* 移动端优化标题背景 */
@media (max-width: 768px) {
  .hero-title h1 {
    font-size: clamp(1.8rem, 5vw, 2.5rem) !important;  /* 移动端使用更小的字体，适应容器宽度 */
  }
  
  .hero-title h2 {
    font-size: clamp(1.1rem, 3.5vw, 1.5rem) !important;  /* 移动端副标题也相应缩小 */
    margin-top: 0.75rem;
  }
  
  /* 移动端feature标题字体大小调整 - 与主标题保持比例关系 */
  .hero-feature-titles h3 {
    font-size: clamp(0.85rem, 2.2vw, 1rem) !important;  /* 移动端使用更小的字体，保持与h1的比例 */
  }
}

/* === 英雄视频容器 - 完全自适应 === */
.hero-video-container {
  position: relative;
  width: min(90%, 1150px);
  margin: 0 auto;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
  animation: fadeInScale 1.5s ease-out 0.3s both;
  
  /* 16:9 宽高比 */
  aspect-ratio: 16/9;
}

.hero-video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

/* === 滚动指示器 === */
.scroll-indicator {
  position: relative;  /* 改为相对定位，通过 margin 控制间距 */
  margin: 0 auto;  /* 水平居中 */
  width: fit-content;
  z-index: 10;  /* 确保在最上层 */
  animation: bounce 2s infinite;
  cursor: pointer;
  padding: 10px;
  border-radius: 8px;  /* 改为小圆角矩形 */
  transition: background-color 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.scroll-indicator:hover {
  background-color: rgba(255, 255, 255, 0.2);
}

.scroll-indicator svg {
  width: 48px;
  height: 48px;
  fill: var(--text-secondary);
  opacity: 0.7;
}

/* === 导航栏 === */
.nav-wrap{
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-h);
}

.hero-nav{
  height: var(--nav-h);
  display: flex;
  align-items: center;
  padding: 0;
  background: #ffffff;
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-md);
  transition: background .3s ease, box-shadow .3s ease, backdrop-filter .3s ease;
  opacity: 1;  /* 始终显示 */
  transform: translateY(0);  /* 始终可见 */
  pointer-events: auto;  /* 始终可点击 */
  width: 100%;
}

/* 导航链接增大触摸区域 */
.hero-nav a,
.hero-nav button {
  padding: 0.75rem 1rem;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: all 0.3s ease;
}

/* 桌面端隐藏汉堡菜单（当导航栏可见时） */
@media (min-width: 1001px) {
  #sidebar-trigger,
  .sidebar-bottom,
  .mobile-menu-toggle {
    display: none !important;
  }
}

/* 移动端优化 - 增大尺寸 */
@media (max-width: 1000px) {
  :root {
    --nav-h: 5rem;  /* 移动端更大的导航栏: 80px / 16 = 5rem */
  }
  
  .nav-wrap {
    height: var(--nav-h-mobile) !important;
  }
  
  .hero-nav {
    height: var(--nav-h-mobile);
    min-height: 6.25rem;  /* 100px / 16 = 6.25rem */
    padding: 1rem 0;
    position: fixed !important;  /* 移动端固定定位 */
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    width: 100% !important;
  }
  
  .hero-nav a,
  .hero-nav button {
    padding: 1.5rem 1.2rem;
    min-height: 3.75rem;  /* 60px / 16 = 3.75rem */
    font-size: 1.4rem;  /* 2倍大小 */
  }
  
  /* 汉堡菜单按钮增大 */
  .mobile-menu-toggle {
    font-size: 2rem !important;
    min-width: 3.75rem !important;  /* 60px / 16 = 3.75rem */
    min-height: 3.75rem !important;  /* 60px / 16 = 3.75rem */
    padding: 1rem !important;  /* 16px / 16 = 1rem */
  }
}

/* 小屏幕 */
@media (max-width: 768px) {
  .hero-nav a,
  .hero-nav button {
    padding: 1.4rem 1rem;
    min-height: 3.5rem;  /* 56px / 16 = 3.5rem */
    font-size: 1.3rem;
  }
}

/* 导航栏始终显示，scrolled类用于样式变化（可选） */
.hero-nav.scrolled{
  /* 可以在这里添加滚动后的样式变化，比如更深的背景色 */
  background: #ffffff;
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-md);
}

/* 给锚点/标题留出滚动对齐的顶边距，避免被粘顶导航遮住 */
section, [id]{
  scroll-margin-top: var(--nav-h);
}

/* === 内容区域 === */
.content-section {
  opacity: 0;
  transform: translateY(50px);
  transition: all 0.8s ease-out;
  padding: 40px 0;
}

.content-section.visible {
  opacity: 1;
  transform: translateY(0);
}

/* === 全宽背景 === */
.full-width-bg {
  width: 100vw;
  position: relative;
  left: 50%;
  right: 50%;
  margin-left: -50vw;
  margin-right: -50vw;
}

/* Key Features Section */
.intro-section {
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 50%, #e2e8f0 100%);
}

/* Simulator Comparison Section */
.why-section {
  background: linear-gradient(135deg, #fafbfc 0%, #f3f4f6 50%, #e5e7eb 100%);
}

.dynamic-section {
  background: var(--bg-light);
}

/* Open-ended Realistic Simulation Section */
.actions-section#open-ended-sim {
  background: linear-gradient(135deg, #f0f4f8 0%, #e2e8f0 50%, #cbd5e1 100%);
}

/* Rich Interface for LLM/VLM Agent Section */
.actions-section#rich-agent-interface {
  background: linear-gradient(135deg, #f7f9fb 0%, #eff1f3 50%, #e1e4e7 100%);
}

/* Physical and Social Reasoning Scenarios Section */
.actions-section#reasoning-scenarios {
  background: linear-gradient(135deg, #f5f7fa 0%, #e8ecf1 50%, #dce4ed 100%);
}

/* Fallback for other actions-section */
.actions-section {
  background: var(--bg-light);
}

.reasoning-section {
  background: var(--bg-light);
}

.citation-section {
  background: var(--bg-gradient-1);
}

/* === 排版 === */
h2 {
  text-align: center;
  font-size: clamp(1.5rem, 4vw, 2.5rem);  /* 增大最大值：桌面端 2.5rem (40px) */
  font-weight: 600;
  color: var(--text-primary);
}

h3 {
  font-size: clamp(1.2rem, 3.5vw, 2rem);  /* 增大最大值：桌面端 2rem (32px) */
  font-weight: 600;
  margin-bottom: 1rem;
  text-align: center;  /* 居中 */
}

.intro-text {
  width: 100%;
  margin: 0 auto 1rem;
  text-align: center;
  font-size: clamp(1rem, 2.5vw, 1.5rem);  /* 增大最大值：桌面端 2.5rem (40px) */
  line-height: 1.8;
  color: var(--text-secondary);
}

/* === 网格系统 & 卡片 === */
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin: 1rem 0;
  align-items: stretch;
}

@media (min-width: 768px) {
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feature-card {
  height: 100%;
  padding: 0.75rem 1.5rem;
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  transition: transform .25s ease, box-shadow .25s ease;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  justify-content: flex-start;
  display: block;                /* 让整块区域都可点击 */
  text-decoration: none;         /* 去掉下划线 */
  color: inherit;                /* 保持文字颜色不变 */
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.feature-card h3 {
  margin: 0 0 0.4rem;
  font-weight: 600;
  color: var(--primary-color);
  font-size: 1.1rem;
}

.feature-card p {
  margin: 0;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* 关键：把卡片里的 intro-text 撑满整张卡片的宽度 */
.feature-card .intro-text {
  text-align: left;      /* 覆盖原来的 text-align: center */
  max-width: 100%;       /* 覆盖原来的 max-width */
  width: 100%;
  margin: 0;             /* 覆盖原来的 margin: 0 auto; */
  font-size: 2rem;       /* 适当减小字体 */
}

.feature-card p.feature-text {
  text-align: center;
  max-width: 100%;
  width: 100%;
  margin: 0;
  font-size: 2rem;  /* 这里先来个明显效果，你想多大就改这里 */
  line-height: 1.6;
  min-height: 7.8rem;
}

/* Sub-items inside each feature card */
.feature-subitems {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem 1.5rem;
}

/* 每个小点：改成上下结构，居中 */
.feature-subitem {
  display: flex;
  flex-direction: column;   /* 竖直排列：图片在上，文字在下 */
  align-items: center;
  text-align: center;
  gap: 0.5rem;
}

/* 每个小点的图片：当成真正的小插图，而不是icon */
.feature-subitem img {
  width: 280px;        /* 图片更大一些 */
  max-width: 100%;     /* 小屏幕不要超出列宽 */
  height: auto;        /* 保持原始宽高比 */
  border-radius: 0.5rem;
  object-fit: cover;
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.08);  /* 轻微阴影，显得是卡片里的重点 */
}

/* 可以稍微拉开文字距离 */
.feature-subitem {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.75rem;
}

/* 列宽稍微大一点，给图腾出空间 */
.feature-subitems {
  margin-top: 1.25rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem 1.75rem;
}

/* 文本紧凑一点 */
.feature-subitem p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.4;
}

/* Bulleted points inside each feature card */
.feature-list {
  margin-top: 1rem;
  padding-left: 1.25rem;     /* 控制黑点缩进 */
  text-align: left;          /* 列表左对齐，读起来更清楚 */
}

.feature-list li {
  margin-bottom: 0.4rem;
  font-size: 0.95rem;
  line-height: 1.5;
}


.image-grid-3col .img-wrapper {
  width: 100%;
}

/* 统一控制图片比例和裁剪 */
.image-grid-3col .img-wrapper img {
  width: 100%;
  aspect-ratio: 16 / 9;   /* 统一 16:9 比例 */
  object-fit: cover;      /* 超出部分裁掉 */
  border-radius: 8px;
  opacity: 0;
  transition: opacity 0.5s;
}

.img-caption {
  margin-top: 0.5rem;
  font-size: 0.9rem;
  color: var(--muted-text-color);
  text-align: center;
}

/* 让导航内容从最左边开始排 */
.navbar {
  display: flex;
  align-items: center;
  justify-content: flex-start;   /* 靠左排就行 */
  padding-left: 1.5rem;          /* 这里改大一点，比如 1.5rem 或 2rem */
  padding-right: 1.5rem;         /* 顺便右边也来一点，可选 */
}

/* 整个 logo：图标 + 文本 */
.navbar-logo {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  margin: 0;
  padding-left: 1.5rem;          /* 这里改大一点，比如 1.5rem 或 2rem */
  padding-right: 1.5rem;         /* 顺便右边也来一点，可选 */
}

/* 让 SimWorld 加粗变大 */
.navbar-logo .logo-text {
  font-weight: 700 !important;   /* 强制加粗 */
  font-size: 1.5rem !important;  /* 比普通导航文字稍大一点 */
  margin: 0;
  padding: 0;
}
  
/* 左边图标大小 */
.logo-icon {
  height: 40px;    /* 根据 navbar 高度调 */
  width: auto;
  display: block;
  padding-right: 0.5rem;
}
/* 入场动画（防止JS未加载时被隐藏） */
.fade-in-left,
.fade-in-right,
.fade-in-up{
  opacity:1;                /* 如果你有 IntersectionObserver，会被覆盖为动画 */
  transform:none;
}

.comparison-grid{
  display: grid;
  grid-template-columns: 1fr;   /* 窄屏：1列 */
  gap: 3rem;
  align-items: start;
}

@media (min-width: 600px){
  .comparison-grid{
    grid-template-columns: repeat(2, 1fr); /* 宽屏：2列 */
  }
}

.video-grid{
  display: grid;
  gap: 2rem;
  margin-top: 2rem;
  grid-template-columns: 1fr;                 /* 默认：1 列 */
}

@media (min-width: 1200px){
  .video-grid{ grid-template-columns: repeat(2, 1fr); }  /* ≥1200px：2 列 */
}

/* 外框：宽度占满这一行，高度比原视频稍微扁一点 */
.shared-video-row .wide-video {
  width: 100%;
  max-width: 100%;
  aspect-ratio: 16 / 4.5;   /* 这里决定“剪掉多少黑边”，下面解释 */
  border-radius: 8px;
  overflow: hidden;
}

/* 里面真正的 video/iframe：填满宽度，只在上下裁一点 */
.shared-video-row .wide-video video,
.shared-video-row .wide-video iframe {
  width: 100%;
  height: 100%;
  object-fit: cover;         /* 只会裁掉上下的多余部分 */
  object-position: center center;
  display: block;
}
/* === GIF 网格 2行4列 === */
.gif-grid-2x4{
  display: grid;
  grid-template-columns: repeat(2, 1fr);  /* 默认：小屏2列 */
  gap: 1rem;
  margin-top: 2rem;
}

@media (min-width: 768px){
  .gif-grid-2x4{ grid-template-columns: repeat(4, 1fr); }  /* ≥768px：4 列 */
}

/* === GIF 网格 2行3列 === */
.gif-grid-2x3{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 2rem;
  /* 删掉 width:80% */
}
@media (min-width: 768px){
  .gif-grid-2x3{ grid-template-columns: repeat(3, 1fr); }
}

.lazy-gif {
  width: 100%;        /* 和上面的 observation 图片一样，占满列宽 */
  height: auto;       /* 保持比例 */
  border-radius: 8px; /* 跟上面的图风格一致 */
  display: block;
}

.lazy-gif-container {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.gif-caption {
  margin-top: 0.5rem;
  font-size: 0.9rem;
  color: var(--muted-text-color);
  text-align: center;
}

/* === 图片网格 3列 === */
.image-grid-3col{
  display: grid;
  grid-template-columns: 1fr;  /* 默认：小屏1列 */
  gap: 1rem;
  margin-top: 1rem;
}

@media (min-width: 768px){
  .image-grid-3col{ grid-template-columns: repeat(3, 1fr); }  /* ≥768px：3 列 */
}

/* === 视频卡片 === */
.dynamics-grid .video-card,
.dynamics-grid .video-card:hover {
  background: transparent;
  box-shadow: none;
  border-radius: 0;
  padding: 0;
  transform: none;
}

/* === 四列视频网格（独立版）=== */
.video-grid-4col {
  display: grid;
  grid-template-columns: 1fr;       /* 默认小屏单列 */
  gap: 1.2rem;
  margin-top: 1rem;
}

@media (min-width: 768px){
  .video-grid-4col {
    grid-template-columns: repeat(4, 1fr);  /* 桌面端四列 */
  }
}


/* 3 个视频共用一个 caption 的布局 */
.shared-video-row {
  margin-top: 1.5rem;
}

.shared-video-row .video-grid-3 {
  display: grid;
  grid-template-columns: 1fr;      /* 小屏 1 列 */
  gap: 1rem;
}

/* 桌面端：3 列并排 */
@media (min-width: 768px) {
  .shared-video-row .video-grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* 共享 caption */
.shared-video-row .shared-caption {
  margin-top: 0.75rem;
  text-align: center;
  font-size: 0.95rem;
  color: var(--text-muted, #555);
}

.language-edit-grid {
  max-width: 900px;
  margin: 2rem auto 0;
}

/* 这段如果你也想去掉白色卡片，只保留视频 + 字，可以一起用 */
.language-edit-section .video-card,
.language-edit-section .video-card:hover {
  background: transparent;
  box-shadow: none;
  border-radius: 0;
  padding: 0;
  transform: none;
}

.language-edit-section .video-wrapper video {
  border-radius: 12px;
}

/* === 媒体容器 - 完全自适应 === */
/* 全局修正：media-container 按容器宽度来 */
.media-container {
  margin: 2rem auto;
  max-width: 100%;          /* 不要卡死 70% 了 */
  border-radius: 12px;
  overflow: hidden;
}

/* 图片/视频占满容器宽度就好 */
.media-container img,
.media-container video {
  width: 100%;
  height: auto;
  display: block;
}

.video-card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.video-caption {
  margin: 0.25rem 0 0;
  font-size: 0.9rem;
  line-height: 1.4;
  text-align: center;
  color: var(--text-secondary);
}


.dynamics-grid {
  display: grid;
  grid-template-columns: 1fr;   /* 小屏一列 */
  gap: 1rem;
  margin-top: 1.5rem;
}

@media (min-width: 900px) {
  .dynamics-grid {
    grid-template-columns: repeat(3, 1fr);  /* 大屏三列并排 */
  }
}

/* 确保在这个 grid 里不被别的 max-width 之类影响 */
.dynamics-grid .media-container {
  max-width: 100%;
  margin: 0;
}


.marquee-container {
  /* margin: 2rem auto; */
  max-width: 100vw;
  border-radius: 12px;
  overflow: hidden;
}

.marquee-container img {
  width: 100%;
  height: auto;
  display: block;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.marquee {
  --speed: 19s;    /* 调整速度：越小越快 */
  --gap: 24px;
  width: 100%;
  overflow: hidden;
  position: relative;
}

.marquee-track {
  display: flex;
  align-items: center;
  gap: var(--gap);
  width: max-content;
  animation: marquee-left var(--speed) linear infinite;
}

/* 图片：自适应高度，保持比例 */
.marquee-track img {
  height: 220px;   /* 你可以改，比如 200~320px */
  width: auto;
  flex-shrink: 0;
  display: block;
  object-fit: cover;   /* 对非等高素材友好 */
  border-radius: 8px;  /* 可选：单个缩略图圆角 */
}

/* 悬停暂停 */
.marquee:hover .marquee-track {
  animation-play-state: paused;
}

/* 左向无限滚动关键帧 */
@keyframes marquee-left {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); } /* 恰好滚动完一整组（队列 A 的总宽度） */
}

/* 减少动效偏好：停掉动画，展示静态第一屏 */
@media (prefers-reduced-motion: reduce) {
  .marquee-track { animation: none; }
}

/* 可选：两端做一点渐隐（更“跑马灯”） */
.marquee::before,
.marquee::after {
  content: "";
  position: absolute;
  top: 0; bottom: 0;
  width: 40px;          /* 渐隐宽度 */
  pointer-events: none;
  z-index: 2; 
}

.marquee::before {
  left: 0;
  background: linear-gradient(to left, rgba(255,255,255,0), rgba(255,255,255,1));
}

.marquee::after {
  right: 0;
  background: linear-gradient(to left, rgba(255,255,255,1), rgba(255,255,255,0));
}

/* === 视频包装器 - 自适应宽高比 === */
.video-wrapper{
  width: 100%;
  aspect-ratio: 16/9;
  overflow: hidden;
  border-radius: 8px;
  background: #000;
}

.video-wrapper video{
  display: block;
  width: 100%;
  height: 100%;        /* 注意：父容器必须有确定高度（由 aspect-ratio 提供） */
  object-fit: cover;   /* 仍能裁剪铺满 */
  opacity: 0; transition: opacity .5s;
}

.video-wrapper video.loaded{ opacity: 1; }

/* === 单个视频容器 === */
.single-video-container {
  max-width: 800px;
  margin: 2rem auto;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

/* 单个视频容器内的视频使用 contain，避免裁剪 */
.single-video-container .video-wrapper {
  aspect-ratio: auto; /* 移除固定宽高比，让视频自然显示 */
  height: auto; /* 高度自适应 */
}

.single-video-container .video-wrapper video {
  object-fit: contain; /* 改为 contain，完整显示视频而不裁剪 */
  height: auto; /* 让高度自适应 */
  max-height: 100%; /* 确保不超过容器 */
}

/* === 表格 === */
.table-wrapper {
  width: 100%;
  overflow-x: auto;
  margin: 2rem 0;
  border-radius: 12px;
  box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.comparison-table {
  width: 100%;
  min-width: 0;  /* 移除固定最小宽度，允许表格自适应 */
  border-collapse: collapse;
  background: white;
  font-size: clamp(0.75rem, 1.5vw, 1rem);  /* 减小字体范围：12-16px */
  table-layout: auto;  /* 允许列宽自适应 */
}

.comparison-table thead {
  background: var(--bg-bar);
  color: rgb(0, 0, 0);
}

.comparison-table thead .group-head {
  position: relative;
  border-bottom: none;
  font-weight: 600;
  padding-bottom: 1rem;
  text-align: center;
}

.comparison-table thead .group-head:not(.group-sim)::after {
  content: "";
  position: absolute;
  left: clamp(0.5rem, 1.5vw, 1rem);
  right: clamp(0.5rem, 1.5vw, 1rem);
  bottom: -1px;
  height: 2px;
  border-radius: 2px;
  background: #d6dae5;
  opacity: 0.9;
}

.comparison-table th,
.comparison-table td {
  padding: clamp(0.5rem, 1.5vw, 0.875rem);  /* 减小内边距：8-14px */
  text-align: left;
  border-bottom: 1px solid var(--border-color);
  font-size: clamp(0.75rem, 1.5vw, 1rem);  /* 减小字体：12-16px */
  word-wrap: break-word;  /* 允许长文本换行 */
  white-space: normal;  /* 允许文本换行 */
}

.comparison-table tbody tr:hover {
  background: rgba(102, 126, 234, 0.05);
}

.comparison-table tbody tr:nth-child(even) {
  background: var(--bg-light);
}

/* Professional table symbols */
.comparison-table .check {
  color: #1f2937;
  font-weight: bold;
  font-size: 1.1em;
}

.comparison-table .cross {
  color: #9ca3af;
  font-weight: normal;
  font-size: 1.1em;
}

.comparison-table .rating {
  color: #fbbf24;
  font-size: 1em;
  letter-spacing: 1px;
}

/* 表格中的链接样式 - 与表格文字一致 */
.comparison-table a {
  color: inherit;  /* 继承父元素的文字颜色 */
  text-decoration: none;  /* 去掉下划线 */
  font-size: inherit;  /* 继承父元素的字体大小 */
}

.comparison-table a:hover {
  color: inherit;  /* 悬停时也保持相同颜色 */
  text-decoration: none;  /* 悬停时也不显示下划线 */
}

.highlight-row {
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.12) 0%, rgba(118, 75, 162, 0.12) 100%) !important;
  font-weight: 600;
}

/* === 概览图片 === */
.overview-image {
  margin: 1rem auto;
  max-width: 100%;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.overview-image img {
  width: 100%;
  height: auto;
  display: block;
}

/* === 列表样式 === */
.comparison-list {
  list-style: none;
  padding: 0;
}

.comparison-list li {
  margin-bottom: 1rem;
  font-size: clamp(1rem, 2.5vw, 1.5rem);  /* 增大最大值：桌面端 1.5rem (24px) */
  padding-left: 0;
}

/* === 引用区域 === */
.citation-container {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  background: #f5f5f5;
  border: 1px solid #ddd;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

/* Copy button */
.copy-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  background: #f5f5f5;
  border: 1px solid #cecece;
  border-radius: 6px;
  padding: 8px 10px;
  color: #ccc;
  cursor: pointer;
  font-size: 14px;
  transition: all 0.2s ease;
  z-index: 10;
}

.copy-btn:hover {
  background: #c4c4c4;
  color: #fff;
  border-color: #ffffff;
}

.copy-btn:active {
  transform: scale(0.95);
}

/* Code block styling */
.citation-container pre {
  margin: 0;
  padding: 2rem 2rem 1.5rem 2rem;
  background: #f8f9fa;
  overflow-x: auto;
  border-radius: 12px;
}

.citation-container code {
  font-family: 'JetBrains Mono', 'Fira Code', 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  font-size: clamp(0.8rem, 2vw, 1.125rem);  /* 增大最大值：桌面端 1.125rem (18px) */
  line-height: 1.7;
  color: #4a4a4a;
  white-space: pre;
  display: block;
}

/* Syntax highlighting for BibTeX */
#citation-code {
  color: #4a4a4a;
}

/* Success message */
.copy-success {
  position: absolute;
  top: 12px;
  right: 60px;
  background: #16a34a;
  color: white;
  padding: 6px 12px;
  border-radius: 6px;  /* 改为小圆角 */
  font-size: 12px;
  font-weight: 500;
  opacity: 0;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  pointer-events: none;
  white-space: nowrap;
}

.copy-success.show {
  opacity: 1;
  transform: translateY(0);
}

/* 响应式调整 */
@media (max-width: 768px) {
  .citation-container pre {
    padding: 2rem 1rem 1.5rem 1rem;
    font-size: 12px;
  }
  
  .copy-btn {
    top: 8px;
    right: 8px;
    padding: 6px 8px;
    font-size: 12px;
  }
  
  .copy-success {
    right: 50px;
    font-size: 11px;
  }
}

/* === Research Section Styles === */
.research-section {
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  padding: 4rem 0;
}

.research-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: 2rem;
}

.research-item {
  display: flex;
  background: white;
  border-radius: 12px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid #e2e8f0;
}

.research-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

/* 整体卡片：背景略微高亮 + 左侧色条 */
.research-item-whitepaper {
  background: #f3f6ff;              /* 浅蓝背景，和普通卡片区分 */
  border-radius: 12px;
  border: 1px solid #d4e0ff;
  padding: 16px 20px;
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.06);
  position: relative;
  overflow: hidden;
}

.research-item-whitepaper::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10%;
  bottom: 10%;
  width: 4px;
  border-radius: 999px;
  background: linear-gradient(180deg, #4b6bff, #8f9bff);
}

/* 顶部 "White Paper" 小标签 */
.research-item-whitepaper .research-tag {
  display: inline-block;
  padding: 4px 10px;
  margin-bottom: 8px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.9);
  color: #3744a8;
  border: 1px solid rgba(148, 163, 255, 0.6);
}

.research-thumbnail {
  flex: 0 0 200px;
  background: #f7fafc;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.research-thumbnail img {
  max-width: 100%;
  max-height: 120px;
  object-fit: contain;
  border-radius: 8px;
}

.research-content {
  flex: 1;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.research-content h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: #2d3748;
  margin-bottom: 0.75rem;
  line-height: 1.4;
}

.research-description {
  color: #4a5568;
  margin-bottom: 1rem;
  line-height: 1.6;
  font-size: 0.95rem;
}

.research-authors,
.research-venue {
  font-size: 0.9rem;
  color: #718096;
  margin-bottom: 0.5rem;
}

.research-authors strong,
.research-venue strong {
  color: #2d3748;
  font-weight: 600;
}

.research-link {
  display: inline-block;
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  transition: color 0.3s ease;
  margin-top: auto;
  padding-top: 0.5rem;
  margin-right: 1rem;
}

.research-link:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .research-section {
    padding: 2rem 0;
  }
  
  .research-item {
    flex-direction: column;
  }
  
  .research-thumbnail {
    flex: none;
    height: 120px;
  }
  
  .research-content {
    padding: 1rem;
  }
  
  .research-content h3 {
    font-size: 1.1rem;
  }
  
  .research-description {
    font-size: 0.9rem;
  }
}

@media (max-width: 480px) {
  .research-grid {
    gap: 1.5rem;
  }
  
  .research-content h3 {
    font-size: 1rem;
  }
  
  .research-description {
    font-size: 0.85rem;
  }
}

/* === 桌面端字体固定大小（防止 clamp 过大）=== */
@media (min-width: 769px) {
  /* 桌面端固定合理的字体大小 */
  body h1,
  .hero-title h1 {
    font-size: 4rem !important;  /* 40px */
    line-height: 1.2 !important;
  }
  
  body h2,
  .content-section h2,
  .container h2,
  .hero-title h2 {
    font-size: 2.25rem !important;  /* 32px */
    line-height: 1.3 !important;
  }
  
  body h3,
  .content-section h3,
  .container h3,
  .feature-card h3 {
    font-size: 1.25rem !important;  /* 24px */
    line-height: 1.4 !important;
  }
  
  body h4,
  .content-section h4,
  .container h4 {
    font-size: 1.25rem !important;  /* 20px */
  }
  
  body p,
  .content-section p,
  .container p,
  .feature-card p,
  .intro-text,
  .research-description {
    font-size: 1.125rem !important;  /* 18px */
    line-height: 1.7 !important;
  }
  
  a,
  .research-link {
    font-size: 1.125rem !important;  /* 18px */
  }
  
  li,
  .comparison-list li {
    font-size: 1.125rem !important;  /* 18px */
  }
  
  table td,
  table th,
  .comparison-table th,
  .comparison-table td {
    font-size: 0.875rem !important;  /* 14px，桌面端也稍微减小以适应更多列 */
    padding: 0.625rem 0.75rem !important;  /* 减小内边距 */
  }
  
  /* 桌面端表格中的链接使用表格字体大小 */
  .comparison-table a {
    font-size: 0.875rem !important;  /* 与表格单元格字体大小一致 */
  }
  
  code,
  .citation-container code {
    font-size: 0.9rem !important;  /* 14.4px */
  }
  
  button,
  .btn {
    font-size: 1.125rem !important;  /* 18px */
    padding: 0.75rem 1.5rem !important;
  }
}

/* === 移动端全局字体增大 === */
@media (max-width: 768px) {
  /* H1 标题增大 - 但hero-title使用更小的字体以适应容器 */
  body h1 {
    font-size: 4.5rem !important;  /* 72px / 16 = 4.5rem */
    line-height: 1.2 !important;
    margin-bottom: 1rem !important;
  }
  
  /* hero-title h1 使用更小的字体以适应容器宽度 */
  .hero-title h1 {
    font-size: clamp(1.8rem, 5vw, 2.5rem) !important;  /* 移动端使用更小的字体 */
    line-height: 1.2 !important;
    margin-bottom: 1rem !important;
  }
  
  /* H2 标题增大 - 但hero-title使用更小的字体以适应容器 */
  body h2, 
  .content-section h2,
  .container h2 {
    font-size: 4rem !important;  /* 64px / 16 = 4rem */
    line-height: 1.3 !important;
    margin-bottom: 1.5rem !important;
  }
  
  /* hero-title h2 使用更小的字体以适应容器宽度 */
  .hero-title h2 {
    font-size: clamp(1.1rem, 3.5vw, 1.5rem) !important;  /* 移动端副标题也相应缩小 */
    line-height: 1.3 !important;
    margin-bottom: 1.5rem !important;
  }
  
  body h3,
  .content-section h3,
  .container h3,
  .feature-card h3 {
    font-size: 2.5rem !important;  /* 40px / 16 = 2.5rem */
    line-height: 1.3 !important;
    margin-bottom: 1.25rem !important;
  }
  
  /* hero-feature-titles h3 使用更小的字体以适应容器宽度，保持与h1的比例 */
  .hero-feature-titles h3 {
    font-size: clamp(0.85rem, 2.2vw, 1rem) !important;  /* 移动端使用更小的字体，保持与h1的比例 */
    line-height: 1.3 !important;
    margin-bottom: 1.25rem !important;
  }
  
  body h4,
  .content-section h4,
  .container h4 {
    font-size: 2.125rem !important;  /* 34px / 16 = 2.125rem */
    line-height: 1.3 !important;
  }
  
  /* 正文增大 - 2.5倍大小 */
  body p,
  .content-section p,
  .container p,
  .feature-card p,
  .research-description {
    font-size: 2.25rem !important;  /* 36px / 16 = 2.25rem */
    line-height: 1.7 !important;
    margin-bottom: 1.5rem !important;
  }
  
  /* intro-text 特别指定 - 覆盖 clamp()，更大 */
  .intro-text {
    font-size: 2.5rem !important;  /* 40px / 16 = 2.5rem */
    line-height: 1.7 !important;
    max-width: 90% !important;
  }
  
  /* 表格文字 - 移动端使用更小的字体以适应屏幕 */
  table, 
  table td, 
  table th,
  .comparison-table th,
  .comparison-table td {
    font-size: 1.25rem !important;  /* 20px / 16 = 1.25rem，减小以适应屏幕 */
    padding: 0.75rem 0.5rem !important;  /* 减小内边距 */
  }
  
  /* 移动端表格中的链接使用表格字体大小 */
  .comparison-table a {
    font-size: 1.25rem !important;  /* 与表格单元格字体大小一致 */
  }
  
  /* 按钮文字增大 */
  button, 
  .btn {
    font-size: 2rem !important;
    padding: 1.5rem 2.5rem !important;
  }
  
  /* 列表文字 */
  li,
  .comparison-list li {
    font-size: 2rem !important;
    line-height: 1.7 !important;
    margin-bottom: 1rem !important;
  }
  
  /* 代码块文字 */
  code,
  .citation-container code {
    font-size: 1.625rem !important;  /* 26px / 16 = 1.625rem */
    line-height: 1.6 !important;
  }
  
  /* 链接也要增大 - 和 intro-text 一样大 */
  a,
  .research-link {
    font-size: 2.5rem !important;  /* 40px / 16 = 2.5rem */
    line-height: 1.7 !important;
  }
}

@media (max-width: 480px) {
  /* 超小屏幕也保持大字体 */
  body h1 {
    font-size: 4rem !important;  /* 64px / 16 = 4rem */
    line-height: 1.2 !important;
  }
  
  /* hero-title h1 在超小屏幕使用更小的字体 */
  .hero-title h1 {
    font-size: clamp(1.5rem, 4vw, 2rem) !important;  /* 超小屏幕使用更小的字体 */
    line-height: 1.2 !important;
  }
  
  body h2, 
  .content-section h2,
  .container h2 {
    font-size: 3.5rem !important;  /* 56px / 16 = 3.5rem */
  }
  
  /* hero-title h2 在超小屏幕使用更小的字体 */
  .hero-title h2 {
    font-size: clamp(1rem, 3vw, 1.3rem) !important;  /* 超小屏幕副标题也相应缩小 */
  }
  
  body h3,
  .content-section h3,
  .container h3 {
    font-size: 2.25rem !important;  /* 36px / 16 = 2.25rem */
  }
  
  /* hero-feature-titles h3 在超小屏幕使用更小的字体，保持与h1的比例 */
  .hero-feature-titles h3 {
    font-size: clamp(0.75rem, 2vw, 0.9rem) !important;  /* 超小屏幕使用更小的字体，保持与h1的比例 */
  }
  
  body h4,
  .content-section h4,
  .container h4 {
    font-size: 1.875rem !important;  /* 30px / 16 = 1.875rem */
  }
  
  body p,
  .content-section p,
  .container p,
  li,
  .research-description {
    font-size: 2rem !important;  /* 32px / 16 = 2rem */
  }
  
  /* intro-text 在超小屏幕 - 也要大 */
  .intro-text {
    font-size: 2.25rem !important;  /* 36px / 16 = 2.25rem */
    max-width: 95% !important;
  }
  
  /* 表格在超小屏幕 - 使用更小的字体 */
  table td, 
  table th,
  .comparison-table th,
  .comparison-table td {
    font-size: 1rem !important;  /* 16px / 16 = 1rem，进一步减小 */
    padding: 0.5rem 0.375rem !important;  /* 进一步减小内边距 */
  }
  
  /* 超小屏幕表格中的链接使用表格字体大小 */
  .comparison-table a {
    font-size: 1rem !important;  /* 与表格单元格字体大小一致 */
  }
  
  /* 按钮在超小屏幕 */
  button, 
  .btn {
    font-size: 1.875rem !important;
  }
  
  /* 代码块在超小屏幕 */
  code,
  .citation-container code {
    font-size: 1.5rem !important;  /* 24px / 16 = 1.5rem */
  }
  
  /* 链接在超小屏幕 - 和 intro-text 一样大 */
  a,
  .research-link {
    font-size: 2.25rem !important;  /* 36px / 16 = 2.25rem */
    line-height: 1.7 !important;
  }
}

/* === Team Section Styles === */
.team-section {
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  padding: 4rem 0;
}

.team-grid {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 4rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.team-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.team-logo {
  display: flex;
  align-items: center;
  justify-content: center;
}

.team-logo img {
  max-width: 200px;
  max-height: 100px;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
}

.team-name {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-top: 1rem;
  text-align: center;
}

/* Copyright Section */
.copyright-section {
  background: var(--bg-light);
  border-top: 1px solid var(--border-color);
  padding: 2rem 0;
  text-align: left;
}

.copyright-section .container {
  justify-content: flex-start;
  align-items: flex-start;
}

.copyright-text {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin: 0;
  text-align: left;
}

/* Responsive design for Team */
@media (max-width: 768px) {
  .team-section {
    padding: 2rem 0;
  }
  
  .team-grid {
    gap: 2rem;
  }
  
  .team-logo img {
    max-width: 150px;
    max-height: 80px;
  }
  
  .copyright-text {
    font-size: 0.85rem;
  }
}

@media (max-width: 480px) {
  .team-grid {
    gap: 1.5rem;
    flex-direction: column;
  }
  
  .team-logo img {
    max-width: 120px;
    max-height: 60px;
  }
}

/* Mobile font size adjustments for Team */
@media (max-width: 768px) {
  .team-section h2 {
    font-size: 4rem !important;
  }
  
  .team-name {
    font-size: 1.8rem !important;
  }
  
  .copyright-text {
    font-size: 1.5rem !important;
  }
}

@media (max-width: 480px) {
  .team-section h2 {
    font-size: 3.5rem !important;
  }
  
  .team-name {
    font-size: 1.5rem !important;
  }
  
  .copyright-text {
    font-size: 1.25rem !important;
  }
}