/* ==========================================================================
   1. 终极 CSS 结界 (Reset)
   作用：强制切断外部页面的全局样式继承，防止字体忽大忽小、排版错乱
   ========================================================================== */
.ht-header-wrapper {
  position: relative !important;
  z-index: 9999 !important;
  width: 100% !important;
  display: block !important;
  margin: 0 !important;
  padding: 0 !important;
}

/* 强制重置内部所有元素的盒模型、字体、行高 */
.ht-header-wrapper *,
.ht-header-wrapper *::before,
.ht-header-wrapper *::after {
  box-sizing: border-box !important;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif !important;
  -webkit-text-size-adjust: 100% !important;
  line-height: normal !important;
  letter-spacing: normal !important;
  word-spacing: normal !important;
  text-transform: none !important;
  text-shadow: none !important;
}

/* ==========================================================================
   2. 公共容器
   ========================================================================== */
.ht-site-header-container {
  width: 100% !important;
  max-width: 1720px !important;
  margin: 0 auto !important;
  padding: 0 20px !important;
  display: block !important;
}

/* ==========================================================================
   3. 顶部语言栏
   ========================================================================== */
.ht-site-header-topbar {
  background: #0b1b34 !important;
  color: #cfd8ea !important;
  height: 40px !important;
  line-height: 40px !important;
  overflow: hidden !important;
  margin: 0 !important;
  padding: 0 !important;
  display: block !important;
}
.ht-site-header-topbar-container {
  display: flex !important;
  justify-content: flex-end !important;
  align-items: center !important;
  height: 100% !important;
}
.ht-site-header-lang {
  display: flex !important;
  gap: 18px !important;
  margin: 0 !important;
  padding: 0 !important;
  list-style: none !important;
}
.ht-site-header-lang span {
  font-size: 12px !important; /* 绝对单位，防 rem 污染 */
  cursor: pointer !important;
  transition: color 0.2s !important;
  white-space: nowrap !important;
  display: inline-block !important;
  margin: 0 !important;
  padding: 0 !important;
}
.ht-site-header-lang span:hover {
  color: #fff !important;
}

/* ==========================================================================
   4. 主导航栏
   ========================================================================== */
.ht-site-header-main {
  background: #fff !important;
  height: 90px !important; /* 绝对高度 */
  border-bottom: 1px solid #eceff5 !important;
  position: sticky !important;
  top: 0 !important;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04) !important;
  margin: 0 !important;
  padding: 0 !important;
  display: block !important;
}
.ht-site-header-inner {
  height: 100% !important;
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
}

/* Logo 防挤压/防变形处理 */
.ht-site-header-logo {
  display: flex !important;
  align-items: center !important;
  flex-shrink: 0 !important;
  text-decoration: none !important;
  height: 100% !important;
  margin: 0 !important;
  padding: 0 !important;
  background: transparent !important;
}
.ht-site-header-logo img {
  height: 50px !important; /* 绝对高度 */
  width: auto !important;
  max-width: none !important; /* 防止被外部 img { max-width: 100% } 压扁 */
  min-width: 0 !important;
  display: block !important;
  margin: 0 !important;
  padding: 0 !important;
  border: none !important;
  object-fit: contain !important;
}

/* PC 端导航菜单 */
.ht-site-header-nav {
  margin-left: auto !important;
  margin-right: 30px !important;
  padding: 0 !important;
  display: block !important;
}
.ht-site-header-nav ul {
  list-style: none !important; /* 防全局 ul 污染 */
  display: flex !important;
  gap: 24px !important;
  margin: 0 !important;
  padding: 0 !important;
}
.ht-site-header-nav li {
  position: relative !important;
  height: 90px !important;
  display: flex !important;
  align-items: center !important;
  margin: 0 !important;
  padding: 0 !important;
  background: transparent !important;
}
.ht-site-header-nav li a {
  color: #223 !important;
  text-decoration: none !important; /* 防全局 a 标签下划线 */
  font-size: 16px !important; /* 绝对单位，防 rem 污染 */
  font-weight: 400 !important;
  transition: color 0.2s !important;
  white-space: nowrap !important;
  background: transparent !important;
  display: block !important;
  margin: 0 !important;
  padding: 0 !important;
  line-height: 1 !important;
}
.ht-site-header-nav li:hover a {
  color: #f08a1f !important;
}
.ht-site-header-nav li.ht-site-header-active a {
  color: #f08a1f !important;
  font-weight: 700 !important;
}
/* 底部橙色激活线 */
.ht-site-header-nav li.ht-site-header-active::after {
  content: "" !important;
  position: absolute !important;
  left: 0 !important;
  right: 0 !important;
  bottom: -1px !important;
  height: 3px !important;
  background: #f08a1f !important;
  border-radius: 3px !important;
  display: block !important;
}

/* ==========================================================================
   5. 右侧按钮区域
   ========================================================================== */
.ht-site-header-actions {
  display: flex !important;
  align-items: center !important;
  margin: 0 !important;
  padding: 0 !important;
}
.ht-site-header-btn {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  height: 50px !important; /* 绝对高度 */
  padding: 0 22px !important;
  border-radius: 8px !important;
  background: #f08a1f !important;
  color: #fff !important;
  font-size: 16px !important; /* 绝对单位 */
  font-weight: 700 !important;
  text-decoration: none !important;
  box-shadow: 0 4px 14px rgba(240, 138, 31, 0.18) !important;
  transition: all 0.2s ease !important;
  white-space: nowrap !important;
  border: none !important;
  margin: 0 !important;
}
.ht-site-header-btn:hover {
  background: #ff9a2f !important;
  transform: translateY(-1px) !important;
  box-shadow: 0 6px 18px rgba(240, 138, 31, 0.25) !important;
}

/* 隐藏控制元素 */
.ht-site-header-toggle, 
.ht-site-header-menu-btn {
  display: none !important;
  margin: 0 !important;
  padding: 0 !important;
}

/* ==========================================================================
   6. 响应式布局
   ========================================================================== */
@media (max-width: 1280px) {
  .ht-site-header-nav { margin-right: 15px !important; }
  .ht-site-header-nav ul { gap: 15px !important; }
  .ht-site-header-nav li a { font-size: 15px !important; }
}

@media (max-width: 992px) {
  .ht-site-header-main {
    height: 70px !important;
  }
  .ht-site-header-logo img {
    height: 40px !important;
  }
  .ht-site-header-nav li {
    height: auto !important;
  }

  /* 显示汉堡按钮 */
  .ht-site-header-menu-btn {
    display: flex !important;
    flex-direction: column !important;
    justify-content: space-between !important;
    width: 24px !important;
    height: 18px !important;
    cursor: pointer !important;
    margin-left: 15px !important;
  }
  .ht-site-header-menu-btn i {
    display: block !important;
    width: 100% !important;
    height: 2px !important;
    background-color: #223 !important;
    transition: all 0.3s !important;
    margin: 0 !important;
    padding: 0 !important;
  }

  /* 导航改为下拉菜单 */
  .ht-site-header-nav {
    position: absolute !important;
    top: 70px !important; 
    left: 0 !important;
    width: 100% !important;
    background: #fff !important;
    margin: 0 !important;
    box-shadow: 0 10px 15px rgba(0,0,0,0.05) !important;
    border-top: 1px solid #eceff5 !important;
    z-index: 1001 !important;
    max-height: 0 !important; 
    overflow: hidden !important;
    transition: max-height 0.4s ease, opacity 0.3s !important;
    opacity: 0 !important;
    pointer-events: none !important;
  }
  
  .ht-site-header-nav ul {
    flex-direction: column !important;
    gap: 0 !important;
    padding: 10px 0 !important;
  }
  
  .ht-site-header-nav li a {
    width: 100% !important;
    padding: 15px 25px !important;
    border-bottom: 1px solid #f8f9fb !important;
    display: block !important;
    line-height: normal !important;
  }

  .ht-site-header-nav li.ht-site-header-active::after {
    display: none !important;
  }
  .ht-site-header-nav li.ht-site-header-active a {
    background: #fff8f0 !important;
    border-left: 4px solid #f08a1f !important;
    font-weight: 700 !important;
  }

  /* 展开逻辑 */
  .ht-site-header-toggle:checked ~ .ht-site-header-nav {
    max-height: 80vh !important;
    opacity: 1 !important;
    pointer-events: auto !important;
    overflow-y: auto !important;
  }

  /* 汉堡按钮动画 */
  .ht-site-header-toggle:checked ~ .ht-site-header-actions .ht-site-header-menu-btn i:nth-child(1) {
    transform: translateY(8px) rotate(45deg) !important;
  }
  .ht-site-header-toggle:checked ~ .ht-site-header-actions .ht-site-header-menu-btn i:nth-child(2) {
    opacity: 0 !important;
  }
  .ht-site-header-toggle:checked ~ .ht-site-header-actions .ht-site-header-menu-btn i:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg) !important;
  }
}

@media (max-width: 768px) {
  .ht-site-header-topbar-container {
    justify-content: flex-start !important;
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch !important;
  }
  .ht-site-header-topbar-container::-webkit-scrollbar {
    display: none !important;
  }
  .ht-site-header-btn {
    height: 38px !important;
    padding: 0 12px !important;
    font-size: 14px !important;
    border-radius: 6px !important;
  }
}