a {
  text-decoration: none;
}

.main {
  margin-top: 6rem;
}

/* 第一区块 - 介绍区 */
.hero-section {
  display: flex;
  gap: 2rem;
  padding: 4rem min(4rem, 5%);
  background: linear-gradient(45deg, #fff1eb 0%, #ace0f9 100%);
  align-items: center;
}

.hero-image {
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  height: 400px;
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}

.hero-image:hover img {
  transform: scale(1.05);
}

.hero-content {
  flex: 1;
  padding: 2rem;
}

.hero-title {
  font-size: 2.5rem;
  color: #2c3e50;
  margin-bottom: 1.5rem;
  position: relative;
}

.hero-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 60px;
  height: 3px;
  background: #e74c3c;
}

.hero-text {
  color: #34495e;
  line-height: 1.8;
  font-size: 1.1rem;
}

/* 第二区块 - 行程网格 */
.tours-section {
  padding: 4rem min(4rem, 5%);
}

.tour-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 2rem;
}

/* 响应式设计 */
@media (max-width: 991px) {
  .tour-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .hero-section {
    flex-direction: column;
  }

  .hero-image {
    min-width: 100%;
  }

  .hero-content {
    padding: 2rem 0;
  }
}

@media (max-width: 768px) {


  .tour-grid {
    grid-template-columns: repeat(2, 1fr);
  }

}

@media (max-width: 425px) {
  .tour-grid {
    grid-template-columns: repeat(1, 1fr);
  }
}


/* 選單 */
.enterBox {
  /* border: 1px solid red; */
  font-size: 25px;
  color: #9cc8e3;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.enterBox .selectBox {
  position: relative;
  /* 讓 ::after 定位於此 */
  display: inline-block;
  /* 跟 select 大小一致 */
}

.enterBox .selectBox::after {
  content: '';
  position: absolute;
  top: 50%;
  right: 10px;
  transform: translateY(-50%);
  width: 0;
  height: 0;
  border-left: 10px solid transparent;
  border-right: 10px solid transparent;
  border-top: calc(10px * 1.414) solid #6ab0d3;
  pointer-events: none;
  /* 讓滑鼠事件直接穿透到下面的 select */
}

.enterBox .selectBox select {
  font-size: inherit;
  padding: 5px 30px 5px 10px;
  border-radius: 10px;
  border: 2px solid #9cc8e3;
  cursor: pointer;
  appearance: none;
}

.enterBox .selectBox select:focus {
  outline: none;
  box-shadow: 0 0 5px #6ab0d3, 0 0 5px #6ab0d3, 0 0 5px #6ab0d3;
}