/**
 * TopBar Styles
 * 顶部信息栏样式文件
 *
 * CSS Variables (可在配置中自定义):
 * --tb-bg-color: 背景颜色
 * --tb-text-color: 文字颜色
 * --tb-height: 高度
 */

:root {
  --tb-bg-color: #000000;
  --tb-text-color: #ffffff;
  --tb-height: 45px;
  --tb-z-index: 1001;
}

/* ========== TopBar 主容器 ========== */
.tb-topbar {
  width: 100%;
  height: var(--tb-height);
  background: var(--tb-bg-color);
  color: var(--tb-text-color);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--tb-z-index);
  line-height: var(--tb-height);
  font-size: 13px;
}

.tb-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

/* ========== 左侧社交链接 ========== */
.tb-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.tb-social-link {
  color: var(--tb-text-color);
  opacity: 0.8;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
}

.tb-social-link:hover {
  opacity: 1;
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

.tb-social-link svg {
  display: block;
}

/* ========== 中间消息 ========== */
.tb-center {
  flex: 1;
  text-align: center;
  padding: 0 20px;
}

.tb-message {
  font-weight: 500;
  opacity: 0.95;
}

/* ========== 右侧联系方式 ========== */
.tb-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.tb-contact-item {
  color: var(--tb-text-color);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 6px;
  opacity: 0.9;
  transition: opacity 0.2s;
}

.tb-contact-item:hover {
  opacity: 1;
}

.tb-contact-item svg {
  opacity: 0.8;
}

/* ========== 关闭按钮 ========== */
.tb-close {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--tb-text-color);
  font-size: 24px;
  cursor: pointer;
  padding: 0;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.6;
  transition: opacity 0.2s;
  line-height: 1;
}

.tb-close:hover {
  opacity: 1;
}

/* ========== 响应式设计 - 移动端 ========== */
@media (max-width: 768px) {
  .tb-topbar {
    height: auto;
    line-height: 1.4;
    font-size: 12px;
  }

  .tb-container {
    flex-direction: column;
    padding: 8px 15px;
    gap: 8px;
  }

  .tb-left,
  .tb-right {
    justify-content: center;
  }

  .tb-center {
    padding: 0;
    text-align: center;
  }

  .tb-message {
    font-size: 12px;
  }

  .tb-contact-item span {
    font-size: 11px;
  }

  .tb-social-link {
    width: 24px;
    height: 24px;
  }

  .tb-social-link svg {
    width: 14px;
    height: 14px;
  }

  .tb-close {
    position: absolute;
    top: 5px;
    right: 5px;
    transform: none;
  }
}

/* ========== TopBar 显示时，调整动态菜单位置 ========== */
/* 桌面端 */
.dm-menu.sticky {
  top: var(--tb-height) !important;
}

/* 移动端 - TopBar 不显示时 */
@media (max-width: 768px) {
  /* 如果 TopBar 在移动端隐藏，恢复菜单原始位置 */
  .tb-topbar[style*="display: none"] ~ * .dm-nav,
  body:not(:has(.tb-topbar)) .dm-nav {
    top: 60px !important;
  }

  .tb-topbar[style*="display: none"] ~ * .dm-nav.open,
  body:not(:has(.tb-topbar)) .dm-nav.open {
    max-height: calc(100vh - 60px) !important;
  }

  .tb-topbar[style*="display: none"] ~ * .dm-menu.sticky,
  body:not(:has(.tb-topbar)) .dm-menu.sticky {
    top: 0 !important;
  }
}