/* 公共导航栏、footer、container等样式 */

/* CSS变量定义 - 定义主题色彩 */
:root {
  --primary-green: #2E8B57;
  --secondary-orange: #FF6B35;
  --light-gray: #f8f9fa;
  --dark-gray: #343a40;
  --accent-blue: #4A90E2;
  --accent-purple: #9B59B6;
}

/* 全局重置样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* 页面主体样式 */
body {
  font-family: 'Microsoft YaHei', '微软雅黑', sans-serif;
  line-height: 1.6;
  color: var(--dark-gray);
  overflow-x: hidden;
  padding-top: 80px;
}

/* 导航栏容器样式 */
.navbar {
  background: #fff;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
  align-items: center;
  transition: height 0.3s cubic-bezier(.4, 0, .2, 1);
  z-index: 1000;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  height: 80px;
}

.navbar > .container {
  height: 100%;
}

/* 导航栏品牌区域样式 */
.navbar-brand {
  display: flex;
  align-items: center;
  padding: 0;
  margin: 0;
  height: 100%;
}

/* Logo容器样式 */
.logo-box {
  height: 80px;
  min-height: 80px;
  max-height: 80px;
  width: 70px;
  min-width: 50px;
  max-width: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  transition: height 0.3s cubic-bezier(.4, 0, .2, 1), width 0.3s cubic-bezier(.4, 0, .2, 1);
}

/* Logo图片样式 */
.logo-box img {
  height: 72px;
  width: auto;
  max-width: 90%;
  object-fit: contain;
  display: block;
  transition: transform 0.3s cubic-bezier(.4, 0, .2, 1);
}

.navbar-nav .nav-item {
  margin: 0 7px;
}

/* 导航链接样式 */
.navbar-nav .nav-link {
  position: relative;
  display: inline-block;
  font-size: 19px;
  padding: 0;
  line-height: 80px;
  color: var(--dark-gray) !important;
  background: none;
  transition: color 0.3s, font-size 0.3s;
}

/* 导航链接下划线样式 */
.navbar-nav .nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0.6em;
  width: 100%;
  height: 3px;
  background: var(--secondary-orange);
  border-radius: 2px;
  transform: scaleX(0);
  transition: transform 0.3s cubic-bezier(.4, 0, .2, 1);
  z-index: 1;
}

/* 导航链接悬停和激活状态的下划线 */
.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
  transform: scaleX(1);
}

/* 导航链接非悬停状态的下划线隐藏 */
.navbar-nav:hover .nav-link:not(:hover)::after {
  transform: scaleX(0);
}

/* 导航链接悬停状态颜色 */
.navbar-nav .nav-link:hover {
  color: var(--secondary-orange) !important;
}

/* 导航链接激活状态颜色 */
.navbar-nav .nav-link.active {
  color: var(--secondary-orange) !important;
}

/* 导航链接非悬停状态颜色 */
.navbar-nav:hover .nav-link:not(:hover) {
  color: var(--dark-gray) !important;
}

/* 移动端导航切换按钮样式 */
.navbar-toggler {
  z-index: 1100;
  border: 1.5px solid var(--secondary-orange);
  outline: none;
  background: none;
  box-shadow: none;
  border-radius: 0.375rem;
  padding: 0.25rem 0.75rem;
  transition: all 0.3s ease;
}

/* 移动端导航切换按钮焦点和悬停状态 */
.navbar-toggler:focus,
.navbar-toggler:hover {
  border-color: var(--secondary-orange);
  box-shadow: none;
}

/* 页脚容器样式 */
.footer {
  background: var(--dark-gray);
  color: white;
  padding: 60px 0 30px;
}

/* 页脚标题样式 */
.footer h4 {
  color: var(--secondary-orange);
  margin-bottom: 1.5rem;
  font-weight: bold;
}

/* 页脚段落和链接样式 */
.footer p,
.footer a {
  color: #ccc;
  text-decoration: none;
  line-height: 1.8;
}

/* 页脚链接悬停状态 */
.footer a:hover {
  color: var(--secondary-orange);
}

/* 页脚底部区域样式 */
.footer-bottom {
  border-top: 1px solid #444;
  padding-top: 2rem;
  margin-top: 2rem;
  text-align: center;
  color: #999;
}

/* 社交媒体链接容器样式 */
.social-links {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

/* 社交媒体链接按钮样式 */
.social-links a {
  width: 40px;
  height: 40px;
  background: var(--primary-green);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  transition: all 0.3s ease;
}

/* 社交媒体链接悬停状态 */
.social-links a:hover {
  background: var(--secondary-orange);
  transform: translateY(-3px);
}

/* 平板设备响应式样式 */
@media (max-width: 991.98px) {
  /* 平板端导航菜单样式 */
  .navbar-nav {
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
    padding: 0;
    margin: 0;
  }
  /* 平板端导航折叠区域样式 */
  .navbar-collapse {
    background: #fff;
    width: 100%;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
    padding: 0.5em 0;
    border-radius: 12px;
    margin-top: 10px;
  }

  /* 平板端导航链接样式 */
  .navbar-nav .nav-link {
    font-size: 18px;
    padding: 0.8em 1.2em;
    line-height: 2.2;
    text-align: left;
    width: 100%;
    border-radius: 8px;
    margin: 0.2em 0;
    background: none;
  }
  /* 平板端导航链接下划线样式 */
  .navbar-nav .nav-link::after {
    left: 0;
    width: 100%;
    height: 3px;
    bottom: 0.2em;
    border-radius: 2px;
  }
}

/* 手机设备响应式样式 */
@media (max-width: 600px) {
  /* 手机端页面基础样式 */
  html, body {
    overflow-x: hidden !important;
    width: 100vw !important;
    max-width: 100vw !important;
  }
  /* 手机端容器内边距调整 */
  .container,
  .main-content,
  .hero-section {
    padding-left: 12px !important;
    padding-right: 12px !important;
  }
  /* 手机端导航栏高度调整 */
  .navbar {
    min-height: 70px !important;
    height: 70px !important;
    padding-top: 0 !important;
    padding-bottom: 0 !important;
  }
  /* 手机端品牌区域和Logo容器调整 */
  .navbar-brand, .logo-box {
    height: 70px !important;
    min-height: 70px !important;
    max-height: 70px !important;
    width: 60px !important;
    min-width: 50px !important;
    max-width: 70px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    padding: 0 !important;
    margin: 0 !important;
  }
  /* 手机端Logo图片尺寸调整 */
  .logo-box img {
    max-height: 45px !important;
    max-width: 90% !important;
    width: auto !important;
    height: auto !important;
    object-fit: contain !important;
    display: block !important;
    margin: 0 auto !important;
  }
  /* 手机端容器宽度调整 */
  .navbar, .navbar-collapse, .navbar-nav {
    width: 100%;
    max-width: 100%;
    margin: 0 !important;
    /* padding: 0 !important; */
    box-sizing: border-box !important;
  }
  /* 手机端主内容区域宽度调整 */
  .main-content, .hero-section {
    width: 100vw !important;
    max-width: 100vw !important;
    margin: 0 !important;
    padding: 0 !important;
    box-sizing: border-box !important;
  }
  /* 手机端导航链接字体调整 */
  .navbar-nav .nav-link {
    font-size: 16px;
    padding: 1em 1.2em;
    line-height: 2.2;
  }
  /* 手机端导航链接下划线调整 */
  .navbar-nav .nav-link::after {
    height: 3px;
    bottom: 0.2em;
  }
}

/* 页面主体顶部内边距 */
body {
  padding-top: 80px;
}

/* 手机端页面主体顶部内边距调整 */
@media (max-width: 600px) {
  body {
    padding-top: 70px;
  }
}

/* 切换详情按钮样式 */
.toggle-detail {
  position: relative;
  display: inline-block;
  color: var(--primary-green);
  cursor: pointer;
  text-decoration: none;
  transition: color 0.2s;
  padding-bottom: 2px;
}

/* 切换详情按钮下划线样式 */
.toggle-detail::after {
  content: '';
  display: block;
  margin: 0 auto;
  margin-top: 2px;
  width: 80%;
  height: 2px;
  background: var(--secondary-orange);
  border-radius: 1px;
  transform: scaleX(0);
  transition: transform 0.3s cubic-bezier(.4, 0, .2, 1);
}

/* 切换详情按钮悬停和焦点状态 */
.toggle-detail:hover,
.toggle-detail:focus {
  color: var(--secondary-orange);
}

/* 切换详情按钮悬停、焦点和展开状态的下划线 */
.toggle-detail:hover::after,
.toggle-detail:focus::after,
.toggle-detail[aria-expanded="true"]::after {
  transform: scaleX(1);
}