.search-form {
  display: inline-flex;
  align-items: center;
  margin: 6px;
  flex-wrap: wrap;
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.search-icon {
  position: absolute;
  left: 12px;
  font-size: 14px;
  color: #999;
  pointer-events: none;
}

.search-input {
  height: 38px;
  padding: 0 12px 0 34px;
  width: 180px;
  font-size: 14px;
  border: 2px solid #ccc;
  border-radius: 20px;
  outline: none;
  transition: all 0.3s ease;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
  box-sizing: border-box;
}

.search-input:focus {
  border-color: #4A90E2;
  box-shadow: 0 1px 6px rgba(74, 144, 226, 0.3);
}

.search-button {
  height: 38px;
  width: 110px; /* 统一宽度 */
  padding: 0 10px;
  margin-left: 8px;
  font-size: 14px;
  border: none;
  border-radius: 20px;
  cursor: pointer;
  transition: background-color 0.3s ease, transform 0.2s ease;
  box-sizing: border-box;
  font-weight: bold;
  text-align: center;
}

.baidu-btn {
  background-color: #3385ff;
  color: #fff;
}

.baidu-btn:hover {
  background-color: #2265d4;
  transform: scale(1.05);
}

.google-btn {
  background-color: #34a853;
  color: #fff;
}

.google-btn:hover {
  background-color: #2c8b46;
  transform: scale(1.05);
}

.visually-hidden {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}