/* ============================================
   News Page - Timeline & Filter Styles
   ============================================ */

/* ============================================
   1. 頁面 Hero
   ============================================ */
.news-hero {
  position: relative;
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-top: 60px;
}

.news-hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.news-hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news-hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(18, 18, 18, 0.7) 0%, rgba(18, 18, 18, 0.4) 100%);
  z-index: 2;
}

.news-hero-content {
  position: relative;
  z-index: 3;
  text-align: center;
  color: var(--color-white);
}

.news-hero-content h1 {
  font-size: 3rem;
  font-family: var(--font-serif);
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: var(--spacing-md);
}

.news-hero-content p {
  font-size: 1.3rem;
  color: var(--color-champagne);
  letter-spacing: 1px;
}

/* ============================================
   2. 分類過濾按鈕
   ============================================ */
.filter-section {
  padding: var(--spacing-xl) 0;
  border-bottom: 1px solid var(--color-champagne);
}

.filter-controls {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
  flex-wrap: wrap;
}

.filter-btn {
  background-color: transparent;
  border: 2px solid var(--color-champagne);
  color: var(--color-champagne);
  padding: 10px 24px;
  border-radius: 0;
  font-family: var(--font-serif);
  font-weight: 600;
  letter-spacing: 1px;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.filter-btn:hover {
  background-color: var(--color-champagne);
  color: var(--color-midnight);
}

.filter-btn.active {
  background-color: var(--color-champagne);
  color: var(--color-midnight);
}

/* ============================================
   3. 垂直時間軸
   ============================================ */
.timeline-section {
  padding: var(--spacing-xxl) 0;
}

.timeline-container {
  display: flex;
  position: relative;
  gap: var(--spacing-lg);
}

/* 左側年份選擇 */
.timeline-left {
  flex-shrink: 0;
  width: 150px;
}

.timeline-year {
  margin-bottom: var(--spacing-xl);
}

.year-btn {
  width: 100%;
  background-color: transparent;
  border: 2px solid var(--color-champagne);
  color: var(--color-champagne);
  padding: 12px 16px;
  border-radius: 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.year-btn:hover,
.year-btn.active {
  background-color: var(--color-champagne);
  color: var(--color-midnight);
}

/* 中央時間軸線 */
.timeline-line {
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background-color: var(--color-champagne);
  transform: translateX(-50%);
}

/* 右側新聞卡片 */
.timeline-right {
  flex: 1;
  padding-left: var(--spacing-lg);
}

/* ============================================
   4. 新聞卡片
   ============================================ */
.news-item {
  margin-bottom: var(--spacing-xl);
  opacity: 1;
  transition: var(--transition-smooth);
}

.news-item.hidden {
  display: none;
}

.news-card {
  background-color: var(--color-dark-gray);
  border-left: 4px solid var(--color-champagne);
  padding: var(--spacing-lg);
  border-radius: 0;
  transition: var(--transition-smooth);
  position: relative;
}

.news-card::before {
  content: '';
  position: absolute;
  left: -14px;
  top: 20px;
  width: 12px;
  height: 12px;
  background-color: var(--color-champagne);
  border-radius: 50%;
  border: 3px solid var(--color-midnight);
}

.news-card:hover {
  transform: translateX(10px);
  box-shadow: 0 8px 25px rgba(197, 160, 89, 0.2);
}

.news-date {
  color: var(--color-champagne);
  font-family: var(--font-serif);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: var(--spacing-sm);
}

.news-title {
  color: var(--color-white);
  font-family: var(--font-serif);
  font-size: 1.5rem;
  margin-bottom: var(--spacing-md);
  letter-spacing: 0.5px;
}

.news-excerpt {
  color: var(--color-text-light);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: var(--spacing-lg);
}

.news-image {
  width: 100%;
  height: 200px;
  overflow: hidden;
  margin-bottom: var(--spacing-lg);
  border-left: 4px solid var(--color-champagne);
}

.news-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

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

.news-link {
  color: var(--color-champagne);
  font-family: var(--font-serif);
  font-weight: 600;
  letter-spacing: 0.5px;
  display: inline-block;
  transition: var(--transition-smooth);
}

.news-link:hover {
  color: var(--color-white);
  transform: translateX(5px);
}

/* ============================================
   5. 行動呼籲 - 電子報訂閱
   ============================================ */
.cta-section-news {
  padding: var(--spacing-xxl) 0;
  text-align: center;
}

.cta-section-news h2 {
  color: var(--color-midnight);
  margin-bottom: var(--spacing-md);
}

.cta-section-news .divider {
  background-color: var(--color-champagne);
}

.cta-section-news p {
  font-size: 1.1rem;
  color: var(--color-text-dark);
  margin-bottom: var(--spacing-lg);
}

.newsletter-form {
  display: flex;
  gap: var(--spacing-sm);
  max-width: 500px;
  margin: 0 auto;
  flex-wrap: wrap;
}

.newsletter-form .form-control {
  flex: 1;
  min-width: 250px;
  background-color: var(--color-white);
  border: 1px solid var(--color-champagne);
  color: var(--color-text-dark);
}

.newsletter-form .form-control:focus {
  background-color: var(--color-white);
  border-color: var(--color-champagne);
  color: var(--color-text-dark);
  box-shadow: 0 0 0 0.2rem rgba(197, 160, 89, 0.25);
}

.newsletter-form .btn {
  padding: 10px 30px;
}

/* ============================================
   6. 動畫效果
   ============================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.news-item {
  animation: fadeInUp 0.6s ease-out;
}

/* ============================================
   7. 響應式設計
   ============================================ */
@media (max-width: 992px) {
  .timeline-container {
    flex-direction: column;
  }
  
  .timeline-left {
    width: 100%;
    display: flex;
    gap: var(--spacing-md);
    overflow-x: auto;
    padding-bottom: var(--spacing-lg);
  }
  
  .timeline-year {
    margin-bottom: 0;
    flex-shrink: 0;
  }
  
  .timeline-line {
    display: none;
  }
  
  .timeline-right {
    padding-left: 0;
  }
  
  .news-card::before {
    display: none;
  }
}

@media (max-width: 768px) {
  .news-hero-content h1 {
    font-size: 2rem;
  }
  
  .news-hero-content p {
    font-size: 1rem;
  }
  
  .filter-controls {
    gap: var(--spacing-sm);
  }
  
  .filter-btn {
    padding: 8px 16px;
    font-size: 0.9rem;
  }
  
  .news-title {
    font-size: 1.3rem;
  }
  
  .news-excerpt {
    font-size: 0.9rem;
  }
  
  .news-image {
    height: 150px;
  }
  
  .newsletter-form {
    flex-direction: column;
  }
  
  .newsletter-form .form-control {
    min-width: 100%;
  }
}

@media (max-width: 576px) {
  .news-hero {
    height: 300px;
  }
  
  .news-hero-content h1 {
    font-size: 1.5rem;
  }
  
  .news-hero-content p {
    font-size: 0.9rem;
  }
  
  .timeline-left {
    justify-content: flex-start;
  }
  
  .year-btn {
    font-size: 0.85rem;
    padding: 8px 12px;
  }
  
  .news-card {
    padding: var(--spacing-md);
  }
  
  .news-title {
    font-size: 1.1rem;
  }
  
  .news-date {
    font-size: 0.8rem;
  }
}