/* 遮罩层（全站共用） */
.overlay {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0,0,0,.5);
  z-index: 9999;
}

/* 顶部导航 */
#top {
  width: 100%;
  padding: 6px 20px;
  box-sizing: border-box;
}
#top .content {
  margin: 0 auto;
}
#top .site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.site-nav .logo {
  font-size: 18px;
  font-weight: bold;
  color: #888;
  text-decoration: none;
}
.site-nav .tools {
  display: flex;
  align-items: center;
  gap: 12px;
}
.site-nav .tools img.service {
  width: 30px;
  height: 30px;
  border-radius: 50%;
}

/* 页面主体容器 */
.Wrapper {
  padding: 5px;
}
.content {
  margin: 0 auto;
}

/* 页脚 */
#Bottom {
  text-align: center;
  padding: 15px 0;
  font-size: 14px;
  color: #666;
}