/* ===== 全局样式 ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* 颜色系统 */
  --primary: #2d5a27;
  --primary-light: #4a8c42;
  --primary-dark: #1a3d15;
  --secondary: #d4a574;
  --accent: #ff6b35;
  --background: #ffffff;
  --foreground: #1a1a1a;
  --muted: #6b7280;
  --border: #e5e7eb;
  --card-bg: #ffffff;
  --overlay: rgba(0, 0, 0, 0.6);
  
  /* 渐变 */
  --gradient-primary: linear-gradient(135deg, #2d5a27 0%, #4a8c42 100%);
  --gradient-hero: linear-gradient(180deg, rgba(0,0,0,0.3) 0%, rgba(0,0,0,0.7) 100%);
  
  /* 间距 */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* 字体 */
  --font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3.5rem;
  
  /* 圆角 */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* 阴影 */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
  
  /* 过渡 */
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--foreground);
  background-color: var(--background);
  overflow-x: hidden;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

/* ===== 导航栏 ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: transparent;
  transition: all var(--transition-base);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-md);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-md) var(--spacing-lg);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-weight: 700;
  font-size: var(--font-size-xl);
  color: #fff;
  transition: color var(--transition-base);
}

.navbar.scrolled .logo {
  color: var(--primary);
}

.logo-img {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  object-fit: cover;
}

.logo-icon {
  font-size: 1.5rem;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: var(--spacing-xl);
}

.nav-links a {
  color: rgba(255, 255, 255, 0.9);
  font-weight: 500;
  padding: var(--spacing-sm) 0;
  position: relative;
  transition: color var(--transition-base);
}

.navbar.scrolled .nav-links a {
  color: var(--foreground);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition-base);
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--spacing-sm);
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: currentColor;
  transition: var(--transition-base);
}

/* ===== 英雄区 ===== */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-video-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

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

.hero-video-container::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    180deg,
    rgba(0, 0, 0, 0.4) 0%,
    rgba(0, 0, 0, 0.2) 50%,
    rgba(0, 0, 0, 0.6) 100%
  );
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('https://images.unsplash.com/photo-1448375240586-882707db888b?w=1920') center/cover no-repeat;
  z-index: -1;
}

/* Hero视频控制按钮 */
.hero-video-control {
  position: absolute;
  bottom: 20px;
  right: 20px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #fff;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-base);
  z-index: 10;
}

.hero-video-control:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: scale(1.1);
}

.hero-video-control .icon-play-hero {
  display: none;
}

.hero-video-container.paused .hero-video-control .icon-pause-hero {
  display: none;
}

.hero-video-container.paused .hero-video-control .icon-play-hero {
  display: block;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: #fff;
  padding: var(--spacing-lg);
  max-width: 900px;
}

.hero-title {
  font-size: var(--font-size-5xl);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-lg);
  text-shadow: 2px 2px 20px rgba(0, 0, 0, 0.5);
}

.title-line {
  display: block;
}

.title-line.highlight {
  color: var(--secondary);
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  opacity: 0.9;
  margin-bottom: var(--spacing-2xl);
  text-shadow: 1px 1px 10px rgba(0, 0, 0, 0.5);
}

.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--spacing-3xl);
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: var(--font-size-base);
  transition: all var(--transition-base);
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: #ff8555;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
}

.btn-outline {
  color: var(--primary);
  border-color: var(--primary);
  background: transparent;
}

.btn-outline:hover {
  background: var(--primary);
  color: #fff;
}

.btn-block {
  width: 100%;
}

.play-icon {
  font-size: 0.75em;
}

/* 统计数据 */
.hero-stats {
  display: flex;
  justify-content: center;
  gap: var(--spacing-3xl);
}

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

.stat-number {
  display: block;
  font-size: var(--font-size-4xl);
  font-weight: 700;
  line-height: 1;
}

.stat-label {
  display: block;
  font-size: var(--font-size-sm);
  opacity: 0.8;
  margin-top: var(--spacing-xs);
}

/* 滚动指示器 */
.scroll-indicator {
  position: absolute;
  bottom: var(--spacing-2xl);
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  color: #fff;
  animation: bounce 2s infinite;
}

.scroll-text {
  display: block;
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-sm);
  opacity: 0.7;
}

.scroll-arrow {
  width: 24px;
  height: 24px;
  border-right: 2px solid #fff;
  border-bottom: 2px solid #fff;
  transform: rotate(45deg);
  margin: 0 auto;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateX(-50%) translateY(0);
  }
  40% {
    transform: translateX(-50%) translateY(-10px);
  }
  60% {
    transform: translateX(-50%) translateY(-5px);
  }
}

/* ===== 章节通用样式 ===== */
section {
  padding: var(--spacing-3xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section-tag {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  background: rgba(45, 90, 39, 0.1);
  color: var(--primary);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 500;
  margin-bottom: var(--spacing-md);
}

.section-title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--foreground);
  margin-bottom: var(--spacing-sm);
}

.section-desc {
  font-size: var(--font-size-lg);
  color: var(--muted);
  max-width: 600px;
  margin: 0 auto;
}

/* ===== 徒步路线 ===== */
.routes {
  background: #f9fafb;
}

.routes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
}

.routes-grid-6 {
  grid-template-columns: repeat(3, 1fr);
}

.route-card {
  background: var(--card-bg);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.route-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.route-card.featured {
  border: 2px solid var(--accent);
}

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

.route-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.route-card:hover .route-image img {
  transform: scale(1.1);
}

.route-badge {
  position: absolute;
  top: var(--spacing-md);
  left: var(--spacing-md);
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--primary);
  color: #fff;
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.route-badge.hot {
  background: var(--accent);
}

.route-badge.pro {
  background: #7c3aed;
}

.route-badge.special {
  background: #0891b2;
}

.route-content {
  padding: var(--spacing-lg);
}

.route-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.route-desc {
  color: var(--muted);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-md);
  line-height: 1.6;
}

.route-meta {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-sm);
  color: var(--muted);
}

.route-meta span {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.route-price {
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-base);
}

.route-price .price {
  color: var(--accent);
  font-weight: 700;
}

.route-price strong {
  font-size: var(--font-size-2xl);
}

/* 路线快速导航（首页） */
.routes .route-quick-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.routes .route-nav-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  background: #fff;
  border-radius: var(--radius-full);
  text-decoration: none;
  color: var(--text);
  font-weight: 500;
  transition: all 0.3s ease;
  border: 2px solid transparent;
  box-shadow: var(--shadow-sm);
}

.routes .route-nav-item:hover {
  background: var(--nav-color);
  color: #fff;
  border-color: var(--nav-color);
  transform: translateY(-2px);
}

.routes .route-nav-item .nav-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: var(--nav-color);
  color: #fff;
  border-radius: 50%;
  font-size: var(--font-size-xs);
  font-weight: 700;
}

.routes .route-nav-item:hover .nav-tag {
  background: #fff;
  color: var(--nav-color);
}

/* 路线卡片头部 */
.route-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.route-letter {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--letter-color);
  color: #fff;
  border-radius: 50%;
  font-size: var(--font-size-base);
  font-weight: 700;
  flex-shrink: 0;
}

.route-header .route-title {
  margin-bottom: 0;
}

/* 路线特色标签 */
.route-features-mini {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.route-features-mini span {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: var(--spacing-xs) var(--spacing-sm);
  background: #f0f7f0;
  color: var(--primary);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
}

/* 路线统计条 */
.route-stats-bar {
  margin-bottom: var(--spacing-md);
}

.stat-bar-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.bar-track {
  flex: 1;
  height: 8px;
  background: #e5e7eb;
  border-radius: 4px;
  overflow: hidden;
  max-width: 150px;
}

.bar-track.forest {
  background: #d1fae5;
}

.bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary-light), var(--primary));
  border-radius: 4px;
  transition: width 1s ease;
}

.bar-track.forest .bar-fill {
  background: linear-gradient(90deg, #34d399, #10b981);
}

.stat-bar-item span {
  font-size: var(--font-size-xs);
  color: var(--muted);
  white-space: nowrap;
}

/* 路线CTA */
.routes-cta {
  text-align: center;
  margin-top: var(--spacing-2xl);
}

/* ===== 视频展示 ===== */
.video-section {
  background: linear-gradient(180deg, #f9fafb 0%, #fff 100%);
}

.video-wrapper {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--spacing-xl);
  align-items: start;
}

.video-player {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: #000;
  aspect-ratio: 16/9;
}

.video-player video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 视频播放覆盖层 */
.video-play-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: opacity var(--transition-base);
  z-index: 5;
}

.video-player.playing .video-play-overlay {
  opacity: 0;
  pointer-events: none;
}

.play-btn {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
}

.play-btn:hover {
  transform: scale(1.1);
  background: #fff;
}

.play-btn .play-icon {
  font-size: 2rem;
  color: var(--primary);
  margin-left: 4px;
}

/* 视频控制条 */
.video-controls-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
  padding: 40px 16px 16px;
  opacity: 0;
  transition: opacity var(--transition-base);
  z-index: 10;
}

.video-player:hover .video-controls-bar,
.video-player.playing .video-controls-bar {
  opacity: 1;
}

/* 进度条 */
.progress-container {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.progress-bar {
  flex: 1;
  height: 4px;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 2px;
  cursor: pointer;
  position: relative;
}

.progress-bar:hover {
  height: 6px;
}

.progress-filled {
  height: 100%;
  background: var(--primary);
  border-radius: 2px;
  width: 0%;
  transition: width 0.1s linear;
}

.time-display {
  color: #fff;
  font-size: 12px;
  white-space: nowrap;
  min-width: 90px;
  text-align: right;
}

/* 控制按钮行 */
.controls-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.controls-left,
.controls-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.control-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: all var(--transition-base);
}

.control-btn:hover {
  background: rgba(255, 255, 255, 0.2);
}

.control-btn.close-btn:hover {
  background: rgba(255, 0, 0, 0.5);
}

/* 播放/暂停按钮图标切换 */
.video-player.playing .icon-play {
  display: none;
}

.video-player:not(.playing) .icon-pause {
  display: none;
}

/* 音量控制 */
.volume-control {
  display: flex;
  align-items: center;
  gap: 4px;
}

.volume-slider {
  width: 0;
  opacity: 0;
  transition: all var(--transition-base);
}

.volume-control:hover .volume-slider {
  width: 60px;
  opacity: 1;
}

.video-player.muted .icon-volume {
  display: none;
}

.video-player:not(.muted) .icon-muted {
  display: none;
}

/* 全屏样式 */
.video-player:fullscreen {
  border-radius: 0;
}

.video-player:fullscreen .video-controls-bar {
  padding: 60px 24px 24px;
}

.video-info h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-sm);
}

.video-info > p {
  color: var(--muted);
  margin-bottom: var(--spacing-lg);
}

.video-playlist {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.playlist-item {
  display: flex;
  gap: var(--spacing-md);
  padding: var(--spacing-sm);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
}

.playlist-item:hover,
.playlist-item.active {
  background: rgba(45, 90, 39, 0.1);
}

.playlist-item img {
  width: 80px;
  height: 50px;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.playlist-info {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.playlist-title {
  font-weight: 500;
  font-size: var(--font-size-sm);
}

.playlist-duration {
  font-size: var(--font-size-sm);
  color: var(--muted);
}

/* ===== 特色体验 ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

.feature-card {
  text-align: center;
  padding: var(--spacing-xl);
  background: var(--card-bg);
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
  border: 1px solid var(--border);
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}

.feature-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-lg);
  background: linear-gradient(135deg, rgba(45, 90, 39, 0.1) 0%, rgba(74, 140, 66, 0.1) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
}

.feature-card h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-sm);
}

.feature-card p {
  color: var(--muted);
  font-size: var(--font-size-sm);
}

/* ===== 风景画廊 ===== */
.gallery {
  background: #f9fafb;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: repeat(2, 200px);
  gap: var(--spacing-md);
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  cursor: pointer;
}

.gallery-item.large {
  grid-column: span 2;
  grid-row: span 2;
}

.gallery-item.tall {
  grid-row: span 2;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.gallery-item:hover img {
  transform: scale(1.1);
}

.gallery-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--spacing-lg);
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
  color: #fff;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

/* ===== 游客评价 ===== */
.testimonials {
  background: var(--gradient-primary);
  color: #fff;
}

.testimonials .section-tag {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
}

.testimonials .section-title {
  color: #fff;
}

.testimonials .section-desc {
  color: rgba(255, 255, 255, 0.8);
}

.testimonials-slider {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

.testimonial-card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: var(--spacing-xl);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.testimonial-rating {
  margin-bottom: var(--spacing-md);
}

.testimonial-text {
  font-size: var(--font-size-lg);
  line-height: 1.8;
  margin-bottom: var(--spacing-lg);
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.testimonial-author img {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  object-fit: cover;
}

.author-name {
  display: block;
  font-weight: 600;
}

.author-location {
  font-size: var(--font-size-sm);
  opacity: 0.8;
}

/* ===== 联系我们 ===== */
.contact {
  background: linear-gradient(180deg, #f8faf8 0%, #fff 100%);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.contact-card {
  background: #fff;
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  text-align: center;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  border: 2px solid transparent;
}

.contact-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.contact-card.primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
  border-color: var(--primary);
}

.contact-card.primary p {
  color: rgba(255, 255, 255, 0.9);
}

.contact-card .card-icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
}

.contact-card h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-md);
}

.contact-card .qrcode-box {
  width: 140px;
  height: 140px;
  margin: 0 auto var(--spacing-md);
  background: #fff;
  border-radius: var(--radius-md);
  padding: var(--spacing-sm);
  box-shadow: var(--shadow-sm);
}

.contact-card .qrcode-box img {
  width: 100%;
  height: 100%;
  border-radius: var(--radius-sm);
  object-fit: cover;
}

.contact-card.primary .qrcode-box {
  background: #fff;
}

.contact-card p {
  font-size: var(--font-size-sm);
  color: var(--muted);
  margin: 0;
}

.contact-card .phone-box {
  padding: var(--spacing-lg) 0;
}

.contact-card .phone-number {
  display: block;
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--primary);
  margin-bottom: var(--spacing-sm);
  text-decoration: none;
}

.contact-card.primary .phone-number {
  color: #fff;
}

.contact-card .phone-box p {
  margin: 0;
}

.contact-location {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  background: #fff;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-sm);
  color: var(--muted);
  font-size: var(--font-size-sm);
}

.contact-location .location-icon {
  font-size: 1.2rem;
}



.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: var(--font-size-base);
  transition: border-color var(--transition-base);
  background: #fff;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
}

.form-group textarea {
  min-height: 100px;
  resize: vertical;
}

/* ===== 页脚 ===== */
.footer {
  background: #1a1a1a;
  color: #fff;
  padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-brand .logo {
  color: #fff;
  margin-bottom: var(--spacing-md);
}

.footer-brand .logo-img {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-md);
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: var(--spacing-lg);
}

.social-links {
  display: flex;
  gap: var(--spacing-md);
}

.social-link {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
}

.social-link:hover {
  background: var(--primary);
  transform: translateY(-3px);
}

.footer-links h4 {
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-base);
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a {
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--font-size-sm);
  transition: color var(--transition-base);
}

.footer-links a:hover {
  color: #fff;
}

.footer-qrcode h4 {
  margin-bottom: var(--spacing-lg);
}

.qrcode-placeholder {
  width: 120px;
  height: 120px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.6);
  text-align: center;
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.4);
  font-size: var(--font-size-sm);
}

/* ===== 客服悬浮按钮 ===== */
.customer-service {
  position: fixed;
  bottom: var(--spacing-xl);
  right: var(--spacing-xl);
  z-index: 999;
}

.cs-btn {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--gradient-primary);
  color: #fff;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  animation: pulse 2s infinite;
}

.cs-btn:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-xl);
}

.cs-icon {
  font-size: 1.25rem;
}

@keyframes pulse {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(45, 90, 39, 0.4);
  }
  50% {
    box-shadow: 0 0 0 15px rgba(45, 90, 39, 0);
  }
}

/* ===== 弹窗 ===== */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
}

.modal.active {
  display: flex;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--overlay);
  z-index: 1;
}

.modal-content {
  position: relative;
  background: var(--card-bg);
  padding: var(--spacing-2xl);
  border-radius: var(--radius-xl);
  max-width: 400px;
  width: 90%;
  text-align: center;
  animation: modalIn 0.3s ease;
  z-index: 2;
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: scale(0.9) translateY(20px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.modal-close {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--border);
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-base);
  z-index: 10;
  border: none;
  padding: 0;
  line-height: 1;
}

.modal-close:hover {
  background: #e5e5e5;
}

.qrcode-wrapper h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-sm);
  text-align: center;
}

.qrcode-wrapper .qrcode-tip {
  text-align: center;
  color: var(--muted);
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-lg);
}

.qrcode-main {
  display: flex;
  justify-content: center;
  margin-bottom: var(--spacing-lg);
}

.qrcode-main .qrcode-image {
  width: 200px;
  height: 200px;
  margin: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #f5f5f5;
  box-shadow: var(--shadow-md);
}

.qrcode-image {
  width: 200px;
  height: 200px;
  margin: 0 auto var(--spacing-lg);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #f5f5f5;
}

.qrcode-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.qrcode-placeholder-large {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 500;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.method-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm);
  background: #f9fafb;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
}

/* 成功弹窗 */
.success-content {
  padding: var(--spacing-3xl);
}

.success-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-lg);
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  font-weight: 700;
}

.success-content h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-sm);
}

.success-content p {
  color: var(--muted);
  margin-bottom: var(--spacing-xl);
}

/* ===== 灯箱 ===== */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.95);
  z-index: 3000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl);
}

.lightbox.active {
  display: flex;
}

.lightbox-close {
  position: absolute;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
  border-radius: 50%;
  font-size: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-base);
}

.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.3);
}

.lightbox img {
  max-width: 90%;
  max-height: 90vh;
  object-fit: contain;
  border-radius: var(--radius-md);
}

/* ===== 响应式设计 ===== */
@media (max-width: 1024px) {
  .video-wrapper {
    grid-template-columns: 1fr;
  }
  
  .video-info {
    order: -1;
  }
  
  .video-playlist {
    flex-direction: row;
    overflow-x: auto;
    padding-bottom: var(--spacing-md);
  }
  
  .playlist-item {
    flex-shrink: 0;
  }
  
  .footer-content {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .routes-grid-6 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --font-size-5xl: 2.5rem;
    --font-size-4xl: 2rem;
    --font-size-3xl: 1.75rem;
  }
  
  .routes-grid-6 {
    grid-template-columns: 1fr;
  }
  
  .nav-links {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: #fff;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xl);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    z-index: 998;
  }
  
  .nav-links.active {
    transform: translateX(0);
  }
  
  .nav-links a {
    color: var(--foreground);
    font-size: var(--font-size-xl);
  }
  
  .nav-toggle {
    display: flex;
    z-index: 999;
    color: #fff;
  }
  
  .navbar.scrolled .nav-toggle {
    color: var(--foreground);
  }
  
  .hero-stats {
    gap: var(--spacing-xl);
  }
  
  .stat-number {
    font-size: var(--font-size-2xl);
  }
  
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(3, 150px);
  }
  
  .gallery-item.large {
    grid-column: span 2;
    grid-row: span 1;
  }
  
  .gallery-item.tall {
    grid-row: span 1;
  }
  
  .contact-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
  }
  
  .contact-card {
    padding: var(--spacing-md);
  }
  
  .contact-card .qrcode-box {
    width: 100px;
    height: 100px;
  }
  
  .contact-wrapper {
    grid-template-columns: 1fr;
  }
  
  .routes .route-quick-nav {
    gap: var(--spacing-sm);
  }
  
  .routes .route-nav-item {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-sm);
  }
  
  .route-features-mini {
    gap: var(--spacing-xs);
  }
  
  .route-features-mini span {
    font-size: 10px;
    padding: 2px var(--spacing-xs);
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .social-links {
    justify-content: center;
  }
  
  .footer-qrcode .qrcode-placeholder {
    margin: 0 auto;
  }
  
  .customer-service {
    right: var(--spacing-md);
    bottom: var(--spacing-md);
  }
  
  .cs-text {
    display: none;
  }
  
  .cs-btn {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    padding: 0;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .hero-cta {
    flex-direction: column;
    align-items: center;
  }
  
  .hero-stats {
    flex-wrap: wrap;
    gap: var(--spacing-lg);
  }
  
  .stat-item {
    flex: 1;
    min-width: 80px;
  }
  
  .routes-grid {
    grid-template-columns: 1fr;
  }
  
  .testimonials-slider {
    grid-template-columns: 1fr;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .gallery-grid {
    grid-template-columns: 1fr;
    grid-template-rows: repeat(6, 150px);
  }
  
  .gallery-item.large,
  .gallery-item.tall {
    grid-column: span 1;
    grid-row: span 2;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
  }
}