/* 檔案路徑：public/css/index.css */

/* ---------------------------------------------------
   1. 主視覺輪播圖 (Hero Section Carousel - 區塊化設計)
   --------------------------------------------------- */
.hero-section {
  background: linear-gradient(180deg, #f8fafc 0%, #edf2f7 100%);
  padding: 50px 0;
  position: relative;
}

.carousel-container {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
  background: #ffffff;
  border-radius: var(--radius-md);
  padding: 16px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
}

.carousel-track {
  display: flex;
  width: 100%;
  position: relative;
  border-radius: calc(var(--radius-md) - 4px);
  overflow: hidden;
}

.carousel-slide {
  min-width: 100%;
  width: 100%;
  display: none;
  text-align: center; /* 讓圖片在未佔滿時置中 */
  background-color: #000; /* 圖片若有留白，可選用背景色（或改為 #fff） */
}

.carousel-slide.active {
  display: block;
}

.carousel-slide img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: contain; /* 關鍵：確保圖片完整顯示，不被裁切 */
  max-height: 600px;   /* 可依需求調整最大高度限制 */
  min-height: 280px;
  margin: 0 auto;
  border-radius: calc(var(--radius-md) - 6px);
}

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.5);
  color: #fff;
  border: none;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: background 0.3s, transform 0.2s;
  z-index: 10;
}

.carousel-btn:hover {
  background: var(--primary);
  transform: translateY(-50%) scale(1.05);
}

.prev-btn {
  left: 30px;
}

.next-btn {
  right: 30px;
}

.carousel-dots {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 10;
  background: rgba(0, 0, 0, 0.3);
  padding: 6px 12px;
  border-radius: 20px;
  backdrop-filter: blur(4px);
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: background 0.3s, transform 0.3s;
}

.dot.active {
  background: #ffffff;
  transform: scale(1.3);
}

/* ---------------------------------------------------
   2. 區塊通用排版與格線 (Section Layouts & Grids)
   --------------------------------------------------- */
.section {
  padding: 80px 0;
}

.section-light {
  background-color: var(--bg-light);
}

.text-center {
  text-align: center;
}

.section-header {
  margin-bottom: 50px;
}

.section-header-flex {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 36px;
}

.section-tag {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 1.5px;
  margin-bottom: 8px;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 12px;
}

.section-sub {
  color: #64748b;
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto;
}

.view-more-link {
  font-weight: 600;
  color: var(--primary);
}

.view-more-link:hover {
  color: var(--accent);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

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

/* ---------------------------------------------------
   3. 關於我們卡片 (About Cards)
   --------------------------------------------------- */
.service-card {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 40px 30px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  text-align: center;
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}

.card-icon {
  font-size: 3rem;
  margin-bottom: 20px;
}

.service-card h3 {
  font-size: 1.3rem;
  color: var(--dark);
  margin-bottom: 14px;
}

.service-card p {
  color: var(--body-text);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ---------------------------------------------------
   4. 最新消息列表 (News List)
   --------------------------------------------------- */
.news-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.news-item {
  display: flex;
  align-items: center;
  background: #fff;
  padding: 18px 24px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}

.news-item:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-sm);
  transform: translateX(4px);
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 220px;
}

.news-badge {
  font-size: 0.8rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 4px;
}

.badge-green {
  background-color: var(--accent-light);
  color: var(--primary);
}

.badge-blue {
  background-color: #e0f2fe;
  color: #0369a1;
}

.news-date {
  font-size: 0.9rem;
  color: #94a3b8;
}

.news-title {
  flex: 1;
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--dark);
}

.news-title a:hover {
  color: var(--accent);
}

.news-arrow {
  font-size: 1.5rem;
  color: #cbd5e1;
  margin-left: 15px;
}

/* ---------------------------------------------------
   5. 課程卡片 (Course Cards)
   --------------------------------------------------- */
.course-card {
  background: #fff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.course-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}

.course-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 50px;
  background-color: #f1f5f9;
  color: #475569;
}

.course-badge.hot {
  background-color: #fee2e2;
  color: #b91c1c;
}

.course-body {
  padding: 30px 24px 20px;
  flex: 1;
}

.course-tag {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 10px;
}

.course-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 12px;
  line-height: 1.45;
}

.course-desc {
  font-size: 0.92rem;
  color: var(--body-text);
  margin-bottom: 20px;
  line-height: 1.6;
}

.course-info {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.85rem;
  color: #64748b;
  border-top: 1px solid #f1f5f9;
  padding-top: 14px;
}

.course-footer {
  padding: 0 24px 24px;
}

/* ---------------------------------------------------
   6. 會員申請專區 (Membership)
   --------------------------------------------------- */
.member-box {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 40px 32px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  position: relative;
}

.member-box.featured {
  border: 2px solid var(--accent);
  box-shadow: var(--shadow-md);
}

.featured-badge {
  position: absolute;
  top: -12px;
  right: 24px;
  background-color: var(--accent);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 50px;
}

.member-type {
  font-size: 1.5rem;
  color: var(--dark);
  margin-bottom: 8px;
}

.member-for {
  font-size: 0.9rem;
  color: #64748b;
  margin-bottom: 24px;
}

.member-benefits {
  flex: 1;
  margin-bottom: 30px;
}

.member-benefits li {
  font-size: 0.95rem;
  margin-bottom: 12px;
  color: var(--dark);
}

/* 流程步驟 */
.process-wrapper {
  margin-top: 60px;
  background: #fff;
  padding: 36px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  text-align: center;
}

.process-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 30px;
}

.process-steps {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 800px;
  margin: 0 auto;
}

.step-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.step-num {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent-light);
  color: var(--primary);
  font-weight: 700;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step-item p {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--dark);
}

.step-line {
  flex: 1;
  height: 2px;
  background-color: var(--border-color);
  margin: 0 12px;
  margin-bottom: 26px;
}

/* ---------------------------------------------------
   7. 相關連結 (Links)
   --------------------------------------------------- */
.link-card {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
}

.link-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.link-card h4 {
  font-size: 1.05rem;
  color: var(--dark);
  margin-bottom: 8px;
}

.link-card p {
  font-size: 0.85rem;
  color: #64748b;
  margin-bottom: 16px;
  flex: 1;
}

.link-arrow {
  color: var(--accent);
  font-weight: 700;
  align-self: flex-end;
}

/* ---------------------------------------------------
   8. 首頁專屬響應式斷點 (Home Responsive)
   --------------------------------------------------- */
@media (max-width: 992px) {
  .grid-3, .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
  .process-steps {
    flex-direction: column;
    gap: 20px;
  }
  .step-line {
    width: 2px;
    height: 24px;
    margin: 0;
  }
  .news-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
  .news-arrow {
    display: none;
  }
  .carousel-btn {
    width: 36px;
    height: 36px;
    font-size: 0.9rem;
  }
  .prev-btn {
    left: 10px;
  }
  .next-btn {
    right: 10px;
  }
}