/* 简洁高端大气风格，移动端适配 */
body {
  font-family: 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
  margin: 0;
  background: #f6fafd;
  color: #222;
}
header {
  background: linear-gradient(90deg, #4fc3f7 0%, #43e97b 100%);
  color: #fff;
  padding: 1.2rem 0 0.5rem 0;
  text-align: center;
  box-shadow: 0 2px 8px #0001;
}
h1 {
  margin: 0 0 0.5rem 0;
  font-size: 1.7rem;
  letter-spacing: 2px;
}
#plan-tabs, #bottom-tabs {
  display: flex;
  justify-content: center;
  gap: 0.3rem;
  flex-wrap: wrap;
  margin-bottom: 0.3rem;
}
.tab-btn {
  background: #fff;
  color: #43a047;
  border: none;
  border-radius: 1.2rem;
  padding: 0.4rem 0.8rem;
  font-size: 1rem;
  box-shadow: 0 1px 4px #0001;
  cursor: pointer;
  margin: 0.1rem 0;
  transition: background 0.2s, color 0.2s;
}
.tab-btn.active, .tab-btn:focus {
  background: #43e97b;
  color: #fff;
}
#plan-info {
  background: #fff;
  margin: 1rem auto 0.5rem auto;
  border-radius: 1.2rem;
  box-shadow: 0 2px 12px #0001;
  max-width: 600px;
  padding: 1.2rem 1.2rem 0.5rem 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
#plan-info h2 {
  margin: 0 0 0.5rem 0;
  font-size: 1.3rem;
  color: #2196f3;
  text-align: left;
  letter-spacing: 1px;
}
#plan-info ul {
  padding-left: 1.2rem;
  margin: 0.2rem 0 0.5rem 0;
}
#plan-info .features {
  color: #ff9800;
  font-size: 1.02rem;
  font-weight: 500;
  margin-bottom: 0.1rem;
}
#plan-info .tips {
  color: #43a047;
  font-size: 0.95rem;
  margin-top: 0.2rem;
}
#plan-info .suit {
  margin: 0.1rem 0 0.2rem 0;
  font-size: 0.99rem;
  color: #1976d2;
}
#plan-info .desc {
  color: #666;
  font-size: 0.98rem;
  margin-bottom: 0.1rem;
}
#plan-info .meta {
  color: #333;
  font-size: 0.97rem;
  margin-bottom: 0.1rem;
}
#itinerary {
  max-width: 600px;
  margin: 0 auto 1.5rem auto;
}
.itinerary-day {
  background: #e3f2fd;
  border-radius: 1.1rem;
  margin-bottom: 1rem;
  box-shadow: 0 1px 6px #0001;
  padding: 1rem 1.1rem 0.7rem 1.1rem;
  position: relative;
}
.itinerary-day h3 {
  margin: 0 0 0.4rem 0;
  font-size: 1.1rem;
  color: #1976d2;
}
.itinerary-day ul {
  margin: 0.2rem 0 0.5rem 0;
  padding-left: 1.1rem;
}
.itinerary-day .special {
  color: #ff9800;
  font-size: 0.97rem;
  margin-bottom: 0.2rem;
}
#bottom-tabs {
  display: none;
  position: static;
  /* 只在js判断后显示，不做fixed或sticky布局 */
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
  min-height: 2.4rem;
  background: none;
  box-shadow: none;
}
#bottom-tabs .tab-btn {
  height: 2.2rem;
  display: flex;
  align-items: center;
  padding-top: 0;
  padding-bottom: 0;
}
#bottom-tabs span {
  display: flex;
  align-items: center;
  min-height: 2.2rem;
  font-size: 1rem;
}
@media (max-width: 700px) {
  #plan-info, #itinerary {
    max-width: 98vw;
    padding: 0.7rem 0.5rem 0.5rem 0.5rem;
    margin-left: 0.5vw;
    margin-right: 0.5vw;
  }
  .itinerary-day {
    padding: 0.7rem 0.5rem 0.5rem 0.5rem;
    font-size: 0.97rem;
    margin-left: 0.5vw;
    margin-right: 0.5vw;
  }
  #plan-info {
    margin-left: 1vw;
    margin-right: 1vw;
  }
  .itinerary-day h3 {
    font-size: 1rem;
    word-break: break-all;
  }
  .itinerary-day ul {
    font-size: 0.97rem;
  }
  .itinerary-day .special {
    font-size: 0.95rem;
  }
  #plan-info h2 {
    font-size: 1.05rem;
    word-break: break-all;
  }
  #plan-info {
    margin: 1rem auto;
    padding: 0.7rem 0.5rem;
    gap: 0.3rem;
  }
  #plan-info h2 {
    font-size: 1.05rem;
  }
  #plan-info .features {
    font-size: 0.98rem;
  }
  #plan-info .suit {
    font-size: 0.97rem;
  }
  #plan-info .desc, #plan-info .meta {
    font-size: 0.95rem;
  }
  #plan-info, .itinerary-day {
    border-radius: 0.7rem;
    box-shadow: 0 1px 4px #0001;
  }
  #bottom-tabs {
    min-height: 2.1rem;
  }
  #bottom-tabs .tab-btn, #bottom-tabs span {
    min-height: 2.1rem;
    font-size: 0.98rem;
  }
}