/*
  主样式文件 styles.css
  - 采用暗黑极简风格
  - 响应式设计，支持高分辨率屏幕
  - 使用CSS变量以便主题调整
  - 包含细致的过渡与交互动画
*/

/* CSS 变量：定义品牌主题色与通用尺寸 */
:root {
  --color-bg: #0b0b0f; /* 背景主色 - 深色，營造沉浸感 */
  --color-surface: #121217; /* 次級背景色 - 對比層 */
  --color-text: #e8e8ef; /* 主要文字颜色 - 高对比 */
  --color-muted: #a5a5b3; /* 次要文字颜色 - 柔和 */
  --color-primary: #bda16b; /* 品牌主色 - 金色調 */
  --color-primary-contrast: #0b0b0f; /* 主色對比 - 深色 */
  --color-border: #1e1e26; /* 邊框顏色 */
  --color-overlay: rgba(0,0,0,0.45); /* 覆蓋層透明度 */

  --radius-sm: 8px; /* 小圆角 */
  --radius-md: 14px; /* 中圆角 */
  --radius-lg: 22px; /* 大圆角 */

  --container: 1180px; /* 网格容器宽度 */
  --gutter: 24px; /* 内距 */

  --shadow-soft: 0 10px 30px rgba(0,0,0,0.35); /* 柔和投影 */
  --shadow-hover: 0 25px 60px rgba(0,0,0,0.5); /* 悬停投影 */

  --transition-fast: 200ms ease; /* 快速过渡 */
  --transition-normal: 380ms cubic-bezier(.22,.61,.36,1); /* 常规过渡 */
}

/* 全局重置与基础样式 */
* { box-sizing: border-box; }
html, body { height: 100%; }
html { scroll-behavior: smooth; }
body {
  margin: 0; /* 去除默认外距 */
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif; /* 字体设置 */
  color: var(--color-text); /* 文字颜色 */
  background: var(--color-bg); /* 背景色 */
  line-height: 1.6; /* 行高提升可读性 */
}

img { max-width: 100%; display: block; border-radius: var(--radius-md); }

/* 全局隐藏面包屑导航 */
.breadcrumb,
.breadcrumb-nav {
  display: none !important;
}

/* 容器宽度控制 */
.container {
  width: 100%; /* 全寬 */
  max-width: var(--container); /* 最大寬度 */
  margin: 0 auto; /* 水平置中 */
  padding: 0 var(--gutter); /* 內距 */
}

/* 加载动画样式 - 优化版本 */
#loader {
  position: fixed; /* 固定定位覆蓋全屏 */
  inset: 0; /* 覆蓋整個視窗 */
  background: radial-gradient(ellipse at center, rgba(15,15,25,0.95) 0%, rgba(5,5,10,0.98) 70%, rgba(0,0,0,1) 100%); /* 径向渐变背景，更有深度感 */
  display: grid; /* 使用Grid置中內容 */
  place-items: center; /* 置中 */
  z-index: 9999; /* 最高層級 */
  backdrop-filter: blur(2px); /* 轻微模糊效果 */
}

.loader-content { 
  text-align: center;
  transform: translateY(-20px); /* 轻微上移，视觉更平衡 */
}

.loader-logo {
  font-family: 'Playfair Display', serif; /* 品牌Logo字體 */
  font-size: 52px; /* 稍大字號 */
  font-weight: 300; /* 更轻的字重 */
  letter-spacing: 6px; /* 增加字距提升优雅感 */
  color: var(--color-primary); /* 金色主題色 */
  margin-bottom: 32px; /* 增加与spinner间距 */
  text-shadow: 0 0 30px rgba(189,161,107,0.3); /* 金色光晕效果 */
  animation: logoBreath 3s ease-in-out infinite; /* 呼吸动画 */
}

.loader-spinner {
  position: relative;
  width: 64px; /* 增大指示器 */
  height: 64px;
  margin: 0 auto 24px;
}

.loader-spinner::before {
  content: '';
  position: absolute;
  inset: 0;
  border: 2px solid transparent;
  border-top: 2px solid var(--color-primary);
  border-right: 2px solid var(--color-primary);
  border-radius: 50%;
  animation: spinSmooth 1.5s cubic-bezier(0.68, -0.55, 0.265, 1.55) infinite;
}

.loader-spinner::after {
  content: '';
  position: absolute;
  inset: 8px;
  border: 1px solid transparent;
  border-bottom: 1px solid rgba(189,161,107,0.4);
  border-left: 1px solid rgba(189,161,107,0.4);
  border-radius: 50%;
  animation: spinReverse 2s linear infinite;
}

.loader-progress {
  margin-top: 16px;
  font-size: 14px;
  color: var(--color-muted);
  font-weight: 300;
  letter-spacing: 1px;
  animation: fadeInOut 2s ease-in-out infinite;
}

/* 动画关键帧 */
@keyframes logoBreath {
  0%, 100% { 
    opacity: 0.9;
    transform: scale(1);
    text-shadow: 0 0 30px rgba(189,161,107,0.3);
  }
  50% { 
    opacity: 1;
    transform: scale(1.02);
    text-shadow: 0 0 40px rgba(189,161,107,0.5);
  }
}

@keyframes spinSmooth {
  0% { 
    transform: rotate(0deg) scale(1);
    opacity: 1;
  }
  50% {
    transform: rotate(180deg) scale(1.05);
    opacity: 0.8;
  }
  100% { 
    transform: rotate(360deg) scale(1);
    opacity: 1;
  }
}

@keyframes spinReverse {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(-360deg); }
}

@keyframes fadeInOut {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

/* 载入动画淡出效果 */
#loader.fade-out {
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94), visibility 0.6s;
}

#loader.fade-out .loader-content {
  transform: translateY(-40px) scale(0.95);
  transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* 导航栏样式 */
.navbar {
  position: fixed; /* 固定在頂部 */
  top: 0; left: 0; right: 0; /* 橫向全寬 */
  padding: 16px 0; /* 垂直內距 */
  background: transparent; /* 初始透明背景 */
  backdrop-filter: none; /* 無毛玻璃初始 */
  transition: background var(--transition-normal), backdrop-filter var(--transition-normal), box-shadow var(--transition-normal); /* 過渡效果 */
  z-index: 1000; /* 高層級 */
}
.navbar.scrolled {
  background: rgba(10,10,15,0.6); /* 滾動後半透明背景 */
  backdrop-filter: blur(8px); /* 毛玻璃效果 */
  box-shadow: 0 10px 30px rgba(0,0,0,0.35); /* 投影增強層次 */
}
.nav-container { display: flex; align-items: center; justify-content: space-between; padding: 0 40px; /* 增加左右内边距 */ }
.nav-logo a {
  font-family: 'Playfair Display', serif; /* 使用衬线字体突显品牌 */
  font-size: 24px; /* 稍微增大字号 */
  color: var(--color-text); /* 文字色 */
  text-decoration: none; /* 移除下劃線 */
  letter-spacing: 1px; /* 增加字母间距 */
}

/* 导航菜单 */
.nav-menu { list-style: none; display: flex; gap: 32px; /* 增加菜单项间距 */ margin: 0; padding: 0; }
.nav-link { color: var(--color-text); text-decoration: none; font-size: 15px; /* 稍微增大字体 */ letter-spacing: 1.2px; /* 增加字母间距 */ padding: 8px 0; /* 增加点击区域 */ transition: color var(--transition-fast); }
.nav-link:hover { color: var(--color-primary); /* 悬停时改变颜色 */ }
.nav-item { position: relative; }

/* 下拉选单 */
.dropdown-menu {
  position: absolute; top: 100%; left: 0; /* 相对于父级定位 */
  padding-top: 15px; /* 增加与父元素的间距，确保鼠标移动时不会触发mouseout */
  min-width: 180px; /* 最小寬度 */
  background: var(--color-surface); /* 背景色 */
  border: 1px solid var(--color-border); /* 邊框 */
  border-radius: var(--radius-sm); /* 圓角 */
  box-shadow: var(--shadow-soft); /* 投影 */
  padding: 10px; /* 內距 */
  display: none; /* 初始隱藏 */
}
.nav-item.dropdown:hover .dropdown-menu { display: block; }
.dropdown-menu a { display: block; padding: 10px 12px; color: var(--color-text); text-decoration: none; border-radius: var(--radius-sm); list-style: none; /* 移除列表标记 */ }
.dropdown-menu a:hover { background: #1a1a22; }

/* 汉堡选单（移动设备） */
.hamburger { 
  display: none; 
  cursor: pointer; 
}
.hamburger .bar { 
  display: block; 
  width: 26px; 
  height: 2px; 
  background: var(--color-text); 
  margin: 6px 0; 
  transition: transform var(--transition-fast); 
}

/* Hero 区域 */
.hero { position: relative; height: 100vh; overflow: hidden; }
.hero-slider { position: absolute; inset: 0; }
.hero-slide {
  position: absolute; inset: 0; background-size: cover; background-position: center; opacity: 0; transition: opacity 1.2s ease-in-out, transform 5s ease; transform: scale(1.05);
}
.hero-slide.active { opacity: 1; transform: scale(1); }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,.55), rgba(0,0,0,.20) 40%, rgba(0,0,0,.7)); }

.hero-content { position: relative; z-index: 1; display: grid; place-items: center; height: 100%; text-align: center; padding: 0 var(--gutter); }
.hero-title { font-family: 'Playfair Display', serif; font-size: clamp(36px, 4vw + 1rem, 72px); line-height: 1.1; margin: 0 0 12px; }
.hero-title .title-line { display: block; }
.hero-subtitle { color: var(--color-muted); margin-bottom: 24px; }

/* Hero 控制器 */
.hero-controls { position: absolute; bottom: 28px; left: 50%; transform: translateX(-50%); display: flex; align-items: center; gap: 16px; z-index: 2; }
.hero-prev, .hero-next {
  width: 42px; height: 42px; border-radius: 50%; border: 1px solid var(--color-border); background: rgba(0,0,0,0.4); color: var(--color-text); cursor: pointer; transition: background var(--transition-fast), transform var(--transition-fast);
}
.hero-prev:hover, .hero-next:hover { background: rgba(0,0,0,0.6); transform: translateY(-1px); }
.indicator { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: #4b4b56; transition: transform var(--transition-fast), background var(--transition-fast); }
.indicator.active { background: var(--color-primary); transform: scale(1.2); }

/* 按鈕樣式 */
.btn { display: inline-block; padding: 12px 20px; border-radius: var(--radius-sm); text-decoration: none; font-weight: 600; letter-spacing: 1px; transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast); }
.btn-primary { background: var(--color-primary); color: var(--color-primary-contrast); box-shadow: 0 12px 30px rgba(189,161,107,0.3); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 18px 40px rgba(189,161,107,0.45); }
.btn-secondary { background: transparent; color: var(--color-text); border: 1px solid var(--color-border); margin-left: 8px; }
.btn-secondary:hover { background: #1a1a22; }
.btn-outline { background: transparent; border: 1px solid var(--color-border); color: var(--color-text); }
.btn-outline:hover { background: #1a1a22; }

/* 產品區塊 */
.products-section { padding: 96px 0; background: var(--color-bg); }
.section-header { text-align: center; margin-bottom: 36px; }
.section-title { font-family: 'Playfair Display', serif; font-size: 32px; margin: 0 0 8px; }
.section-subtitle { color: var(--color-muted); margin: 0; }

.products-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.product-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-soft); transition: transform var(--transition-normal), box-shadow var(--transition-normal); }
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.product-image { position: relative; overflow: hidden; }
.product-image img { transition: transform 1s ease, filter .6s ease; filter: saturate(0.85) brightness(0.9); }
.product-card:hover .product-image img { transform: scale(1.06); filter: saturate(1) brightness(1); }
.product-overlay { position: absolute; inset: 0; display: grid; place-items: center; background: radial-gradient(circle at center, rgba(0,0,0,0), rgba(0,0,0,0.45)); opacity: 0; transition: opacity var(--transition-normal); }
.product-card:hover .product-overlay { opacity: 1; }
.product-btn { padding: 10px 16px; border: 1px solid var(--color-border); background: rgba(0,0,0,0.5); color: var(--color-text); border-radius: var(--radius-sm); cursor: pointer; }
.product-info { padding: 14px 16px 18px; }
.product-name { margin: 0 0 6px; font-size: 16px; letter-spacing: .5px; }
.product-price { margin: 0; color: var(--color-primary); font-weight: 600; }

/* 品牌理念 */
.brand-philosophy { padding: 96px 0; background: linear-gradient(180deg, #0b0b0f, #0d0d13); }
.philosophy-content { display: grid; grid-template-columns: 1.2fr .8fr; gap: 40px; align-items: center; }
.philosophy-title { font-family: 'Playfair Display', serif; font-size: 28px; margin: 0 0 10px; }
.philosophy-description { color: var(--color-muted); margin: 0 0 16px; }

/* 沉浸式体验区 */
.experience-section { 
  padding: 120px 0; 
  background: linear-gradient(180deg, var(--color-bg) 0%, #0a0a0e 50%, var(--color-bg) 100%);
  position: relative;
}

.experience-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse 80% 50% at 50% 50%, rgba(189, 161, 107, 0.03), transparent);
  pointer-events: none;
}

.experience-grid { 
  display: grid; 
  grid-template-columns: repeat(3, 1fr); 
  gap: 40px; 
  margin-top: 60px;
  position: relative;
  z-index: 1;
}

.experience-card { 
  background: linear-gradient(145deg, rgba(18, 18, 23, 0.8), rgba(13, 13, 19, 0.9));
  border: 1px solid rgba(189, 161, 107, 0.1);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  box-shadow: 
    0 20px 40px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.experience-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(189, 161, 107, 0.3), transparent);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.experience-card:hover {
  transform: translateY(-12px) scale(1.02);
  box-shadow: 
    0 30px 60px rgba(0, 0, 0, 0.6),
    0 0 0 1px rgba(189, 161, 107, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  border-color: rgba(189, 161, 107, 0.3);
}

.experience-card:hover::before {
  opacity: 1;
}

.experience-icon { 
  width: 80px;
  height: 80px;
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(189, 161, 107, 0.1), rgba(189, 161, 107, 0.05));
  border: 1px solid rgba(189, 161, 107, 0.2);
  border-radius: 50%;
  position: relative;
  transition: all var(--transition-normal);
}

.experience-icon::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(189, 161, 107, 0.3), transparent, rgba(189, 161, 107, 0.1));
  opacity: 0;
  transition: opacity var(--transition-normal);
  z-index: -1;
}

.experience-card:hover .experience-icon {
  transform: scale(1.1);
  background: linear-gradient(135deg, rgba(189, 161, 107, 0.2), rgba(189, 161, 107, 0.1));
  border-color: rgba(189, 161, 107, 0.4);
}

.experience-card:hover .experience-icon::before {
  opacity: 1;
}

.experience-icon svg {
  width: 36px;
  height: 36px;
  color: var(--color-primary);
  transition: all var(--transition-normal);
}

.experience-card:hover .experience-icon svg {
  color: #d4b876;
  transform: scale(1.1);
}

.experience-title { 
  margin: 0 0 16px; 
  font-size: 20px;
  font-weight: 600;
  text-align: center;
  color: var(--color-text);
  transition: color var(--transition-normal);
}

.experience-card:hover .experience-title {
  color: #f0f0f7;
}

.experience-description { 
  margin: 0; 
  color: var(--color-muted);
  line-height: 1.7;
  text-align: center;
  font-size: 15px;
  transition: color var(--transition-normal);
}

.experience-card:hover .experience-description {
  color: #b8b8c5;
}

/* 页脚 */
.footer { background: #0a0a0e; border-top: 1px solid var(--color-border); margin-top: 40px; }
.footer-content { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 20px; padding: 28px 0; }
.footer-title { font-family: 'Playfair Display', serif; margin: 0 0 6px; font-size: 20px; }
.footer-description { color: var(--color-muted); margin: 0 0 10px; font-size: 14px; line-height: 1.5; }
.footer-subtitle { margin: 0 0 8px; font-size: 15px; font-weight: 500; }
.footer-links { list-style: none; margin: 0; padding: 0; }
.footer-links li { margin: 6px 0; }
.footer-links a { color: var(--color-text); text-decoration: none; opacity: .85; font-size: 14px; transition: opacity var(--transition-fast); }
.footer-links a:hover { opacity: 1; }
.social-links { display: flex; gap: 8px; margin-top: 8px; }
.social-link { display: grid; place-items: center; width: 32px; height: 32px; background: #101015; border: 1px solid var(--color-border); border-radius: 50%; color: #d7c49e; transition: all var(--transition-fast); }
.social-link:hover { background: #1a1a20; border-color: var(--color-primary); }

.contact-info { margin-top: 4px; }
.contact-info p { margin: 4px 0; font-size: 14px; color: var(--color-muted); display: flex; align-items: center; gap: 8px; }
.contact-info p:hover { color: var(--color-text); }

.footer-bottom { border-top: 1px solid var(--color-border); display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 12px 0 16px; color: var(--color-muted); font-size: 13px; }
.footer-bottom a { color: var(--color-muted); text-decoration: none; margin-left: 12px; transition: color var(--transition-fast); }
.footer-bottom a:hover { color: var(--color-text); }

/* 回到顶部按钮 */
.back-to-top { position: fixed; right: 24px; bottom: 24px; width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--color-border); background: rgba(0,0,0,0.55); color: var(--color-text); display: grid; place-items: center; box-shadow: var(--shadow-soft); cursor: pointer; transform: translateY(20px); opacity: 0; visibility: hidden; transition: transform var(--transition-fast), opacity var(--transition-fast), visibility var(--transition-fast); z-index: 100; }
.back-to-top.show { transform: translateY(0); opacity: 1; visibility: visible; }

/* 确保移动端全屏导航在桌面端完全隐藏 */
.mobile-nav-overlay { display: none; }

/* 响应式断点 */
/* 桌面端强制隐藏汉堡菜单 */
@media (min-width: 769px) {
  .hamburger {
    display: none !important;
  }
}

@media (max-width: 1024px) {
  .products-grid { grid-template-columns: repeat(3, 1fr); }
  .philosophy-content { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  /* 隐藏桌面端导航菜单 */
  .nav-menu { display: none !important; }
  .hamburger { display: block !important; }
  
  /* 移动端禁用桌面端下拉菜单 */
  .dropdown-menu { display: none !important; }
  .nav-item.dropdown:hover .dropdown-menu { display: none !important; }
  
  /* 移动端全屏导航覆盖层 */
  .mobile-nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(10, 10, 14, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    display: block; /* 覆蓋全局的 display: none; 僅在移動端啟用 */
  }
  
  .mobile-nav-overlay.open {
    opacity: 1;
    visibility: visible;
  }
  
  /* 移动端导航内容容器 */
  .mobile-nav-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100%;
    padding: 80px 40px 40px;
    transform: translateY(30px);
    transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
  }
  
  /* 移动端导航关闭按钮 */
  .mobile-nav-close {
    position: absolute;
    top: 30px;
    right: 30px;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
  }
  
  .mobile-nav-close .close-line {
    display: block;
    width: 24px;
    height: 2px;
    background: #fff;
    position: absolute;
    top: 50%;
    left: 50%;
    transform-origin: center;
    transition: all 0.3s ease;
  }
  
  .mobile-nav-close .close-line:first-child {
    transform: translate(-50%, -50%) rotate(45deg);
  }
  
  .mobile-nav-close .close-line:last-child {
    transform: translate(-50%, -50%) rotate(-45deg);
  }
  
  .mobile-nav-close:hover .close-line {
    background: var(--color-primary);
  }
  
  .mobile-nav-overlay.open .mobile-nav-content {
    transform: translateY(0);
  }
  
  /* 移动端导航菜单列表 */
  .mobile-nav-menu {
    list-style: none;
    margin: 0;
    padding: 0;
    width: 100%;
    max-width: 300px;
  }
  
  /* 移动端导航项目 */
  .mobile-nav-item {
    margin: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }
  
  .mobile-nav-item:last-child {
    border-bottom: none;
  }
  
  /* 移动端导航链接 */
  .mobile-nav-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 0;
    color: #ffffff;
    text-decoration: none;
    font-size: 18px;
    font-weight: 500;
    transition: all 0.3s ease;
    cursor: pointer;
  }
  
  .mobile-nav-link:hover {
    color: var(--color-primary);
  }
  
  /* 移动端下拉箭头 */
  .mobile-dropdown-arrow {
    font-size: 20px;
    transition: transform 0.3s ease;
    color: var(--color-primary);
  }
  
  .mobile-dropdown.open .mobile-dropdown-arrow {
    transform: rotate(90deg);
  }
  
  /* 移动端子菜单 */
  .mobile-submenu {
    list-style: none;
    margin: 0;
    padding: 0;
    max-height: 0;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  }
  
  .mobile-submenu.open {
    max-height: 300px;
    padding: 10px 0;
    margin-top: 10px;
  }
  
  /* 移动端子菜单链接 */
  .mobile-submenu-link {
    display: block;
    padding: 12px 20px;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 16px;
    transition: all 0.3s ease;
  }
  
  .mobile-submenu-link:hover {
    color: var(--color-primary);
    background: rgba(255, 255, 255, 0.05);
  }
  
  /* 汉堡菜单动画增强 */
  .hamburger {
    transition: transform 0.3s ease;
  }
  
  .hamburger.open {
    transform: rotate(90deg);
  }
  
  .hamburger.open .bar:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .hamburger.open .bar:nth-child(2) {
    opacity: 0;
  }
  
  .hamburger.open .bar:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }
  
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  
  /* 体验区域响应式优化 */
  .experience-section { padding: 80px 0; }
  .experience-grid { 
    grid-template-columns: 1fr; 
    gap: 32px;
    margin-top: 40px;
  }
  .experience-card {
    padding: 32px 24px;
    margin: 0 16px;
  }
  .experience-card:hover {
    transform: translateY(-8px) scale(1.01);
  }
  .experience-icon {
    width: 70px;
    height: 70px;
    margin-bottom: 20px;
  }
  .experience-icon svg {
    width: 32px;
    height: 32px;
  }
  .experience-title {
    font-size: 18px;
    margin-bottom: 12px;
  }
  .experience-description {
    font-size: 14px;
  }
  
  .footer-content { grid-template-columns: 1fr; gap: 16px; padding: 24px 0; text-align: center; }
  .footer-bottom { flex-direction: column; gap: 8px; padding: 10px 0 14px; text-align: center; }
  .footer-bottom-links a { margin: 0 8px; }
}
@media (max-width: 480px) {
  .products-grid { grid-template-columns: 1fr; }
  
  /* 小屏幕体验区域进一步优化 */
  .experience-section { padding: 60px 0; }
  .experience-grid { gap: 24px; }
  .experience-card {
    padding: 28px 20px;
    margin: 0 8px;
  }
  .experience-icon {
    width: 60px;
    height: 60px;
  }
  .experience-icon svg {
    width: 28px;
    height: 28px;
  }
}