/* ============================================
   about.css — V2 關於我們頁面

   改進：
   - 移除 emoji 星號，使用 CSS 圖標
   - Glassmorphism 卡片效果
   - 更精緻的時間軸動畫
   - 更好的視覺層次和間距
   ============================================ */

/* ========== 頁面 Hero ========== */
.about-hero {
  position: relative;
  width: 100%;
  height: 55vh;
  min-height: 380px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: var(--bg-base);
  overflow: hidden;
}

/* 背景裝飾光暈 */
.about-hero::before {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(202,138,4,0.04) 0%, transparent 70%);
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.about-hero::after {
  content: '';
  position: absolute;
  width: 300px;
  height: 300px;
  border: 1px solid rgba(202,138,4,0.05);
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: heroRing 20s linear infinite;
}

@keyframes heroRing {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

.about-hero-content {
  position: relative;
  z-index: var(--z-base);
}

.about-hero .section-title {
  font-size: clamp(32px, 5vw, 56px);
  margin-bottom: 12px;
}

.about-hero .section-subtitle {
  margin: 0 auto;
  text-align: center;
}

/* ========== 公司概述 ========== */
.about-overview {
  background: var(--bg-surface);
}

.about-overview-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-text p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 2;
  margin-bottom: 16px;
}

.about-text p:last-child { margin-bottom: 0; }

/* 統計數字卡片 */
.about-stats {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.about-stat {
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 28px 32px;
  display: flex;
  align-items: baseline;
  gap: 16px;
  transition: all var(--duration-normal) var(--ease-out);
  cursor: default;
}

.about-stat:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow-gold);
  transform: translateX(4px);
}

.stat-number {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 600;
  background: var(--grad-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.stat-label {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ========== 公司使命（3 欄） ========== */
.about-mission {
  background: var(--bg-base);
  position: relative;
}

/* 頂部微光 */
.about-mission::after {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  height: 200px;
  background: var(--grad-glow-crimson);
  pointer-events: none;
}

.about-mission .section-title {
  text-align: center;
  margin-bottom: 56px;
}

.mission-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  position: relative;
  z-index: var(--z-base);
}

.mission-card {
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 44px 32px;
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-out);
  cursor: default;
}

.mission-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--grad-gold);
  transform: scaleX(0.3);
  transform-origin: left;
  transition: transform var(--duration-normal) var(--ease-out);
}

.mission-card:hover::before { transform: scaleX(1); }

.mission-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow-gold);
}

/* SVG 圖標容器（取代 emoji） */
.mission-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gold-muted);
  border-radius: var(--radius-md);
  color: var(--gold);
  transition: all var(--duration-normal) var(--ease-out);
}

.mission-card:hover .mission-icon {
  background: var(--gold);
  color: #0C0A09;
  transform: scale(1.05);
}

.mission-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
}

.mission-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ========== 核心價值（2×2 Grid） ========== */
.about-values {
  background: var(--bg-surface);
}

.about-values .section-title {
  text-align: center;
  margin-bottom: 56px;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.value-card {
  background: rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 40px;
  display: flex;
  gap: 24px;
  align-items: flex-start;
  transition: all var(--duration-normal) var(--ease-out);
  cursor: default;
}

.value-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-glow-gold);
  transform: translateY(-2px);
}

.value-icon {
  width: 52px;
  height: 52px;
  min-width: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gold-muted);
  border-radius: var(--radius-md);
  color: var(--gold);
  transition: all var(--duration-normal) var(--ease-out);
}

.value-card:hover .value-icon {
  background: var(--gold);
  color: #0C0A09;
}

.value-title {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
}

.value-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ========== 發展時間軸 ========== */
.about-timeline {
  background: var(--bg-base);
}

.about-timeline .section-title {
  text-align: center;
  margin-bottom: 64px;
}

.timeline {
  position: relative;
  max-width: 780px;
  margin: 0 auto;
}

/* 中軸線 */
.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  width: 1px;
  height: 100%;
  background: var(--border);
  transform: translateX(-50%);
}

/* 動畫軸線 */
.timeline::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  width: 1px;
  height: 0;
  background: var(--grad-gold);
  transform: translateX(-50%);
  transition: height 2s var(--ease-out);
}

.timeline.animated::after { height: 100%; }

/* 時間節點 */
.timeline-item {
  position: relative;
  width: 50%;
  padding: 0 40px 64px;
}

.timeline-item:nth-child(odd) {
  left: 0;
  text-align: right;
  padding-right: 56px;
  padding-left: 0;
}

.timeline-item:nth-child(even) {
  left: 50%;
  text-align: left;
  padding-left: 56px;
  padding-right: 0;
}

/* 圓點 */
.timeline-dot {
  position: absolute;
  top: 4px;
  width: 12px;
  height: 12px;
  background: var(--bg-base);
  border: 2px solid var(--gold);
  border-radius: 50%;
  z-index: var(--z-base);
  transition: all var(--duration-normal) var(--ease-out);
}

.timeline-item:nth-child(odd) .timeline-dot { right: -6px; }
.timeline-item:nth-child(even) .timeline-dot { left: -6px; }

.timeline-item:hover .timeline-dot {
  transform: scale(1.5);
  background: var(--gold);
  box-shadow: 0 0 20px rgba(202, 138, 4, 0.4);
}

.timeline-year {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 600;
  color: var(--gold);
  margin-bottom: 8px;
  display: block;
}

.timeline-title {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.timeline-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}