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

/* 页面背景图 */
body {
    background: url("plant.jpg") center/cover no-repeat fixed !important;
    min-height: 100vh;
    margin: 0;
}

/* 顶部导航栏样式（透明背景） */
.navbar {
    display: flex;
    align-items: center;
    background-color: transparent;
    padding: 15px 25px;
    color: white;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    position: relative;
}

.navbar .logo span {
    font-size: 22px;
    font-weight: bold;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
}

/* 导航菜单水平居中 */
.nav-menu {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu a {
    color: white;
    text-decoration: none;
    font-size: 16px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
}

.nav-menu a.active {
    font-weight: bold;
    border-bottom: 2px solid white;
}

.user {
    margin-left: auto;
}

/* 植物卡片容器 */
.plant-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 40px;
  padding: 30px 0;
}

/* 植物卡片样式 */
.plant-card {
  width: 90%;
  max-width: 400px;
  aspect-ratio: 1 / 1;
  text-align: center;
}

.plant-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 8px;
}

/* 植物名称 */
.plant-card p {
    padding: 8px 0;
    color: #FFFFFF;
    font-size: 18px;
    font-weight: bold;
    text-align: center;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
}

.plant-card a {
    text-decoration: none;
}

/* 鼠标悬停上浮 */
.plant-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(0,0,0,0.25);
    transition: all 0.3s ease;
}

/* 鼠标按压下沉 */
.plant-card:active {
    transform: translateY(2px);
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}

/* ======================
   用户下拉菜单
====================== */
.user-dropdown {
  position: relative;
  display: inline-block;
}

.user-btn {
  color: #fff;
  font-size: 16px;
  cursor: pointer;
  padding: 8px 12px;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
}

/* 下拉菜单默认隐藏，JS 控制显示 */
.dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  background: #ffffff;
  min-width: 140px;
  border-radius: 4px;
  z-index: 999;
  border: 1px solid #e0e0e0;
  display: none;
}

/* JS 控制显示 */
.user-dropdown.active .dropdown-menu {
  display: block;
}

.dropdown-menu a {
  display: block;
  padding: 10px 15px;
  color: #333;
  text-decoration: none;
  font-size: 14px;
  text-shadow: none;
}

.dropdown-menu a:hover {
  background: #f5f5f5;
}

/* 退出登录红色 */
.logout-item {
  color: #e53935 !important;
}