/* 基礎設置 */
:root {
  --primary: #ff2d55;
  --primary-light: #ff7a45;
  --secondary: #2af5ff;
  --accent: #26d07c;
  --text-primary: #ffffff;
  --text-secondary: #a0a3ab;
  --text-muted: #7f818a;
  --bg-primary: #0d0d0f;
  --bg-secondary: #141417;
  --bg-card: #1a1b20;
  --border: #26272b;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  --gradient-primary: linear-gradient(135deg, var(--primary), var(--primary-light));
  --gradient-secondary: linear-gradient(135deg, var(--secondary), var(--accent));
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(13, 13, 15, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.header-left .brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
}

.brand-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--gradient-primary);
  border-radius: 8px;
  font-weight: bold;
  font-size: 18px;
}

.brand-text {
  font-size: 20px;
  font-weight: 700;
}

.header-nav {
  display: none;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.contact-btn {
  display: inline-block;
  padding: 8px 16px;
  background: var(--gradient-primary);
  color: var(--text-primary);
  text-decoration: none;
  border-radius: 6px;
  font-weight: 500;
  font-size: 14px;
  transition: transform 0.2s;
  white-space: nowrap;
}

.contact-btn:hover {
  transform: translateY(-2px);
}

.menu-toggle {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: 0.3s;
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: 70px;
  left: 0;
  right: 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  transform: translateY(-100%);
  transition: transform 0.3s ease;
  z-index: 999;
}

.mobile-menu.active {
  transform: translateY(0);
}

.mobile-menu a {
  display: block;
  padding: 16px 20px;
  color: var(--text-primary);
  text-decoration: none;
  border-bottom: 1px solid var(--border);
  transition: background 0.2s;
}

.mobile-menu a:hover {
  background: var(--bg-card);
}

/* Hero Section */
.hero {
  position: relative;
  padding: 120px 0 80px;
  background: var(--bg-primary);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(800px 400px at 20% -10%, rgba(42, 245, 255, 0.15), transparent 60%),
    radial-gradient(600px 300px at 80% 10%, rgba(255, 45, 85, 0.12), transparent 60%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 20px;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
  line-height: 1.7;
}

/* 優化後的 Hero 數據統計排版 */
.hero-stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 40px;
  padding: 0 10px;
}

.stat-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px 16px;
  text-align: center;
  transition: transform 0.2s, box-shadow 0.2s;
}

.stat-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.stat-number {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: 8px;
  display: block;
}

.stat-label {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.4;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  padding: 0 10px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.2s;
  border: none;
  cursor: pointer;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--text-primary);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 2px solid var(--border);
}

.btn-secondary:hover {
  background: var(--bg-card);
  border-color: var(--primary);
}

/* Section Headers */
.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 16px;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-header p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* About Section */
.about {
  padding: 80px 0;
  background: var(--bg-secondary);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.about-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 30px;
  text-align: center;
  transition: transform 0.2s;
}

.about-card:hover {
  transform: translateY(-5px);
}

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

.about-card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.about-card p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Data Section */
.data-section {
  padding: 80px 0;
  background: var(--bg-primary);
}

.data-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.data-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 20px;
  transition: transform 0.2s;
}

.data-card:hover {
  transform: translateY(-3px);
}

.data-icon {
  font-size: 2.5rem;
  flex-shrink: 0;
}

.data-content {
  flex: 1;
}

.data-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: 8px;
}

.data-label {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.data-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Projects Section - 優化後的視覺設計 */
.projects {
  padding: 80px 0;
  background: var(--bg-secondary);
}

.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  transition: transform 0.2s;
}

.project-card:hover {
  transform: translateY(-5px);
}

.project-image {
  height: 200px;
  position: relative;
  overflow: hidden;
}

/* 醫療救助 - 更精緻的醫療主題設計 */
.project-image.health {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  position: relative;
}

.project-image.health::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 30% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 70% 80%, rgba(255, 255, 255, 0.08) 0%, transparent 50%);
}

.project-image.health::after {
  content: '🏥';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 4rem;
  opacity: 0.8;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
}

/* 文化傳承 - 優雅的文化主題設計 */
.project-image.culture {
  background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  position: relative;
}

.project-image.culture::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.1) 50%, transparent 70%),
    radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.08) 0%, transparent 50%);
}

.project-image.culture::after {
  content: '🎭';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 4rem;
  opacity: 0.8;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
}

/* 鄉村振興 - 自然的農業主題設計 */
.project-image.rural {
  background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  position: relative;
}

.project-image.rural::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
    linear-gradient(135deg, transparent 40%, rgba(255, 255, 255, 0.05) 60%, transparent 80%);
}

.project-image.rural::after {
  content: '🌾';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 4rem;
  opacity: 0.8;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
}

/* 為所有項目圖片添加微妙的動畫效果 */
.project-image::before {
  transition: all 0.3s ease;
}

.project-card:hover .project-image::before {
  transform: scale(1.1);
}

.project-content {
  padding: 24px;
}

.project-tag {
  display: inline-block;
  background: rgba(42, 245, 255, 0.1);
  color: var(--secondary);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
  margin-bottom: 16px;
}

.project-card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.project-card p {
  color: var(--text-secondary);
  margin-bottom: 20px;
  line-height: 1.6;
}

.project-stats {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.project-stats span {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Transparency Section */
.transparency {
  padding: 80px 0;
  background: var(--bg-primary);
}

.transparency-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.transparency-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 30px;
  display: flex;
  align-items: flex-start;
  gap: 20px;
}

.item-icon {
  font-size: 2.5rem;
  flex-shrink: 0;
}

.item-content h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.item-content p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Partners Section */
.partners {
  padding: 80px 0;
  background: var(--bg-secondary);
}

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

.partner-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  text-align: center;
  color: var(--text-secondary);
  font-weight: 500;
  transition: all 0.2s;
}

.partner-item:hover {
  color: var(--text-primary);
  border-color: var(--primary);
  transform: translateY(-2px);
}

/* Footer - 重新設計的美觀和諧排版 */
.site-footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border);
  padding: 60px 0 40px;
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

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

.footer-section h4 {
  color: var(--text-primary);
  margin-bottom: 20px;
  font-size: 1.2rem;
  font-weight: 600;
  position: relative;
}

.footer-section h4::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 30px;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: 1px;
}

.footer-section a {
  display: block;
  color: var(--text-secondary);
  text-decoration: none;
  margin-bottom: 12px;
  transition: all 0.2s;
  padding: 8px 0;
  border-radius: 6px;
}

.footer-section a:hover {
  color: var(--primary);
  background: rgba(255, 45, 85, 0.1);
  transform: translateX(5px);
}

.footer-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 20px;
}

.footer-brand .brand-icon {
  width: 36px;
  height: 36px;
  font-size: 20px;
  background: var(--gradient-primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.footer-brand .brand-text {
  font-size: 22px;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-section p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 0;
  font-size: 1rem;
}

.footer-section div {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 8px;
}

/* 版權信息特殊樣式 */
.footer-section:last-child div:last-child {
  color: var(--text-secondary);
  font-size: 0.85rem;
  opacity: 0.8;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

/* Responsive Design */
@media (min-width: 768px) {
  .hero h1 {
    font-size: 3rem;
  }
  
  .hero-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    padding: 0;
  }
  
  .stat-item {
    padding: 24px 20px;
  }
  
  .stat-number {
    font-size: 2.5rem;
  }
  
  .stat-label {
    font-size: 1rem;
  }
  
  .hero-actions {
    padding: 0;
  }
  
  .about-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .data-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .transparency-content {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .partners-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .footer-content {
    grid-template-columns: repeat(2, 1fr);
    gap: 50px;
  }
  
  .footer-section {
    text-align: left;
  }
  
  .footer-section h4::after {
    left: 0;
    transform: none;
  }
  
  .footer-brand {
    justify-content: flex-start;
  }
  
  .contact-btn {
    padding: 10px 20px;
    font-size: 16px;
  }
}

@media (min-width: 1024px) {
  .header-nav {
    display: flex;
    gap: 32px;
  }
  
  .header-nav a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
  }
  
  .header-nav a:hover {
    color: var(--primary);
  }
  
  .data-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .projects-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .partners-grid {
    grid-template-columns: repeat(6, 1fr);
  }
  
  .footer-content {
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
  }
}

@media (min-width: 1200px) {
  .hero h1 {
    font-size: 3.5rem;
  }
  
  .section-header h2 {
    font-size: 3rem;
  }
}