/* 外层容器：垂直居中，第一行图片/图标 第二行搜索框，保留原有所有属性 */
.center-wrapper {
    width: 100vw;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 20px; /* 图片与搜索框的间距，可微调 */
    box-sizing: border-box;
    padding: 20px;
}
/* 新增：顶部图片容器样式，适配各类图片，与原有图标样式兼容 */
.top-img-box {
    width: auto; /* 图片自适应宽度，可自定义如120px */
    height: auto;
    display: block;
}
/* 顶部图片自适应，不超出容器 */
.top-img-box img {
    width: 100%;
    height: auto;
    object-fit: contain;
    border: none;
}

.search-card {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background-color: var(--trbg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    max-width: 900px;
    width: 100%;


    display: flex !important;
  flex-direction: column !important;
  align-items: center !important;
  gap: 16px !important;

}

/* 让下拉+输入+按钮 水平排成一行 */
.search-card > select,
.search-card > input,
.search-card > button {
  display: inline-flex !important;
  align-items: center !important;
  margin: 0 4px !important;
}

/* 固定输入框宽度，避免太挤 */
#searchQuery {
  min-width: 220px !important;
}

/* 修正 select 伪元素实现 */
.search-engine-wrapper {
    position: relative;
}
.search-engine-wrapper::after {
    content: "▼";
    font-size: 10px;
    color: var(--text);
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
}

#searchEngine {
    width: 100px;
    height: 44px;
    padding: 0 30px 0 12px;
    border: none;
    border-radius: 4px;
    background-color: var(--bg);
    color: var(--text);
    font-size: 16px;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    cursor: pointer;
}

#searchQuery {
    padding: 8px 12px;
    border: none;
    border-radius: 4px;
    background-color: var(--bg);
    color: var(--text);
    font-size: 16px;
    height: 44px;
    flex: 1;
    min-width: 220px;
    max-width: 600px;
}

.search-btn {
    height: 44px;
    padding: 0 20px;
    border: none;
    border-radius: 4px;
    background-color: var(--bg);
    color: var(--text);
    font-size: 16px;
    cursor: pointer;
}

/* 保持移动端适配 */
@media (max-width: 480px) {
    .search-card {
        padding: 12px 16px;
        max-width: 100%;
    }
    #searchEngine {
        width: 80px;
        font-size: 14px;
    }
    #searchQuery {
        font-size: 14px;
        min-width: 140px;
    }
}

@media (max-width: 360px) {
    .search-card {
        flex-direction: column;
        align-items: stretch;
    }
    #searchEngine,
    #searchQuery,
    .search-btn {
        width: 100%;
        max-width: 100%;
    }
}

#searchCard.hidden {
  opacity: 0;
  height: 0;
  padding: 0;
  margin: 0;
  overflow: hidden;
}

/* 控制按钮样式 */
.toggle-btn {
  padding: 10px 20px;
  border: none;
  border-radius: 4px;
  background-color: rgba(255, 255, 255, 0.9);
  color: #333;
  font-size: 14px;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
  transition: all 0.3s ease;
}
.toggle-btn:hover {
  background-color: #fff;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

/* 搜索框隐藏状态（默认可见） */
#searchCard {
  display: flex;
  transition: all 0.3s ease, opacity 0.3s ease;
}
#searchCard.hidden {
  display: none;
}

/* 放大镜图标 —— 搜索框上方 */
.search-icon-top {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 4px;
}
.search-icon-top svg {
  width: 100%;
  height: 100%;
}

/* 只做一件事：让两个盒子 上下 排列 */
.parent-div {
  display: flex;
  flex-direction: column;
}