.main-title {
  width: 100%;
  padding: 20px;
  text-align: center;
}
.main-title h1 {
  font-size: 24px;
  color: var(--primary-color);
  margin-bottom: 10px;
}
.main-title p {
  font-size: 14px;
  color: #666;
}

.core-function {
  width: 100%;
  padding: 0 20px;
  margin-bottom: 30px;
}
.core-function .search-container {
  display: flex;
  flex-direction: column;
  gap: 15px;
  width: 100%;
}
.core-function .search-input {
  width: 100%;
  height: 48px;
  padding: 0 15px;
  border: 2px solid #e8e8e8;
  border-radius: 24px;
  font-size: 16px;
  transition: all 0.3s ease;
}
.core-function .search-input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px var(--primary-color-light);
}
.core-function .search-btn {
  width: 100%;
  height: 48px;
  background-color: var(--primary-color);
  color: #fff;
  border: none;
  border-radius: 24px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 2px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px var(--primary-color-dark);
}
.core-function .search-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}
.core-function .search-btn:active {
  transform: translateY(0);
}
.core-function .search-btn.loading {
  opacity: 0.7;
  cursor: not-allowed;
}

.case-showcase {
  width: 100%;
  padding: 0 20px 30px;
  background-color: #fafafa;
}
.case-showcase .case-title {
  font-size: 18px;
  font-weight: bold;
  color: #333;
  margin-bottom: 15px;
  padding-top: 20px;
}
.case-showcase .case-slider {
  display: flex;
  gap: 15px;
  overflow-x: auto;
  padding-bottom: 10px;
  scrollbar-width: none; /* Firefox */
  -ms-overflow-style: none; /* IE and Edge */
}
.case-showcase .case-slider::-webkit-scrollbar {
  display: none; /* Chrome, Safari, Opera */
}
.case-showcase .case-slider .case-item {
  flex: 0 0 210px;
  background-color: #fff;
  border-radius: 8px;
  padding: 15px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}
.case-showcase .case-slider .case-item .case-image {
  width: 40px;
  height: 40px;
  margin-bottom: 5px;
}
.case-showcase .case-slider .case-item .case-image img {
  width: 100%;
  height: auto;
}
.case-showcase .case-slider .case-item .case-name-container {
  flex: 1;
  display: flex;
  flex-direction: column;
}
.case-showcase .case-slider .case-item .case-name-container .case-name {
  font-size: 12px;
  color: #333;
}
.case-showcase .case-slider .case-item .case-name-container .case-info {
  font-size: 12px;
  color: #666;
}

@media (orientation: landscape) {
  .core-function {
    max-width: 600px;
    margin: 0 auto 30px;
  }
  .core-function .search-container {
    flex-direction: row;
    align-items: center;
  }
  .core-function .search-container .search-input {
    flex: 1;
    margin-right: 15px;
  }
  .core-function .search-container .search-btn {
    width: 150px;
    flex-shrink: 0;
  }
  .case-showcase {
    padding-bottom: 20px;
  }
  .case-showcase .case-slider .case-item {
    flex: 0 0 180px;
    height: 100px;
  }
}
@media (min-width: 768px) {
  .main-title h1 {
    font-size: 32px;
  }
  .main-title p {
    font-size: 16px;
  }
  .core-function {
    max-width: 700px;
    margin: 0 auto 40px;
  }
  .core-function .search-input,
  .core-function .search-btn {
    height: 56px;
  }
  .core-function .search-input {
    font-size: 18px;
  }
  .core-function .search-btn {
    font-size: 20px;
  }
  .case-showcase {
    padding-bottom: 40px;
  }
  .case-showcase .case-slider .case-item {
    flex: 0 0 220px;
    height: 140px;
  }
  .case-showcase .case-slider .case-item .case-name {
    font-size: 18px;
  }
  .case-showcase .case-slider .case-item .case-info {
    font-size: 14px;
  }
}