/* ========================================
   运河国际营地官网 - 主样式文件
   ======================================== */

/* === CSS Variables === */
:root {
  --color-primary: #1a6fc4;
  --color-primary-dark: #155a9f;
  --color-secondary: #3ba776;
  --color-secondary-dark: #2e8a5f;
  --color-accent: #f0a020;
  --color-accent-dark: #d88e15;
  --color-bg: #ffffff;
  --color-bg-alt: #f8f9fa;
  --color-border: #e5e7eb;
  --color-text: #333333;
  --color-text-light: #666666;
  --color-error: #e05555;
  --font-cn: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  --font-en: "Inter", "Roboto", sans-serif;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* === Reset & Base === */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-cn);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

ul, ol {
  list-style: none;
}

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
  transition: var(--transition);
}

input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

/* === Container === */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* === Section === */
.section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-title {
  font-size: 36px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
}

.section-desc {
  font-size: 16px;
  color: var(--color-text-light);
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-weight: 500;
  transition: var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
}

.btn-sm {
  padding: 8px 20px;
  font-size: 14px;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 18px;
}

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

.btn-primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-primary:active {
  transform: scale(0.98);
}

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

.btn-cta:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-cta:active {
  transform: scale(0.98);
}

.btn-outline-light {
  background: transparent;
  color: #fff;
  border-color: #fff;
}

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

.btn-block {
  width: 100%;
}

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

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(10px);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-img {
  height: 48px;
  width: auto;
  object-fit: contain;
}

.logo-text {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-primary);
}

.navbar:not(.scrolled) .logo-text {
  color: #fff;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
  position: relative;
}

.navbar.scrolled .nav-link {
  color: var(--color-text);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-cta {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

.nav-cta:hover {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.hamburger span {
  width: 24px;
  height: 2px;
  background: #fff;
  transition: var(--transition);
}

.navbar.scrolled .hamburger span {
  background: var(--color-text);
}

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

.hero-bg {
  position: absolute;
  inset: 0;
  background: url('/public/hero-bg.jpg') center center / cover no-repeat;
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26,111,196,0.7) 0%, rgba(45,138,224,0.5) 50%, rgba(59,167,118,0.6) 100%);
}

.hero-wave {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
}

.hero-wave svg {
  width: 100%;
  height: 120px;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: #fff;
  padding: 120px 0 80px;
}

.hero-badge {
  display: inline-block;
  padding: 8px 20px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 50px;
  font-size: 14px;
  margin-bottom: 24px;
  backdrop-filter: blur(10px);
}

.hero-title {
  font-size: 48px;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
}

.hero-title .highlight {
  color: var(--color-accent);
}

.hero-subtitle {
  font-size: 18px;
  opacity: 0.9;
  margin-bottom: 40px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* === Stats Bar === */
.stats-bar {
  background: var(--color-bg);
  padding: 48px 0;
  margin-top: -60px;
  position: relative;
  z-index: 2;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-lg);
}

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

.stat-number {
  font-size: 48px;
  font-weight: 700;
  color: var(--color-primary);
  font-family: var(--font-en);
}

.stat-suffix {
  font-size: 20px;
  color: var(--color-accent);
  font-weight: 600;
  display: inline;
}

.stat-label {
  font-size: 14px;
  color: var(--color-text-light);
  margin-top: 8px;
}

/* === Highlights === */
.highlights {
  background: var(--color-bg-alt);
}

.highlights-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.highlight-card {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

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

.highlight-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  background: var(--color-bg-alt);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.highlight-card h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--color-text);
}

.highlight-card p {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* === Quick Entry === */
.quick-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.quick-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  min-height: 240px;
  display: flex;
  align-items: flex-end;
  transition: var(--transition);
}

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

.quick-card-bg {
  position: absolute;
  inset: 0;
}

.quick-card-content {
  position: relative;
  z-index: 1;
  padding: 24px;
  color: #fff;
  width: 100%;
  background: linear-gradient(to top, rgba(0,0,0,0.6) 0%, transparent 100%);
}

.quick-card-content h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
}

.quick-card-content p {
  font-size: 14px;
  opacity: 0.9;
  margin-bottom: 12px;
}

.quick-link {
  font-size: 14px;
  font-weight: 500;
}

/* === Latest News === */
.latest-news {
  background: var(--color-bg-alt);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.news-card {
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

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

.news-image {
  height: 180px;
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  padding: 16px;
}

.news-tag {
  background: rgba(255, 255, 255, 0.9);
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text);
}

.news-body {
  padding: 20px;
}

.news-date {
  font-size: 13px;
  color: var(--color-text-light);
}

.news-title {
  font-size: 18px;
  font-weight: 600;
  margin: 8px 0 12px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-desc {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 12px;
}

.news-link {
  font-size: 14px;
  color: var(--color-primary);
  font-weight: 500;
}

/* === Honors Section === */
.honors-section {
  overflow: hidden;
}

.honors-scroll {
  overflow: hidden;
  position: relative;
}

.honors-track {
  display: flex;
  gap: 24px;
  animation: scroll-left 30s linear infinite;
}

.honor-item {
  flex-shrink: 0;
  padding: 16px 32px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  white-space: nowrap;
  border: 1px solid var(--color-border);
}

@keyframes scroll-left {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* === CTA Banner === */
.cta-banner {
  position: relative;
  padding: 80px 0;
  text-align: center;
  overflow: hidden;
}

.cta-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #1a6fc4 0%, #3ba776 100%);
}

.cta-content {
  position: relative;
  z-index: 1;
  color: #fff;
}

.cta-content h2 {
  font-size: 36px;
  font-weight: 600;
  margin-bottom: 16px;
}

.cta-content p {
  font-size: 18px;
  opacity: 0.9;
  margin-bottom: 32px;
}

/* === About Section === */
.about-section {
  background: var(--color-bg);
}

.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 64px;
}

.about-text h3 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--color-primary);
}

.about-text p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text-light);
  margin-bottom: 16px;
}

.about-features {
  display: flex;
  gap: 32px;
  margin-top: 24px;
}

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

.feature-num {
  display: block;
  font-size: 32px;
  font-weight: 700;
  color: var(--color-accent);
  font-family: var(--font-en);
}

.feature-text {
  font-size: 14px;
  color: var(--color-text-light);
}

.image-placeholder {
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 300px;
  border: 2px dashed var(--color-border);
  gap: 12px;
}

.image-placeholder span {
  font-size: 14px;
  color: var(--color-text-light);
}

/* === Map === */
.about-map {
  margin-bottom: 64px;
}

.about-map h3 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 24px;
  color: var(--color-primary);
}

.map-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.map-placeholder {
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  min-height: 300px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 2px dashed var(--color-border);
  gap: 12px;
}

.map-placeholder span {
  font-size: 14px;
  color: var(--color-text-light);
}

.map-info h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--color-text);
}

.map-info p {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 16px;
}

.map-info ul {
  list-style: disc;
  padding-left: 20px;
}

.map-info li {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 8px;
}

/* === Timeline === */
.about-timeline {
  margin-bottom: 64px;
}

.about-timeline h3 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 32px;
  color: var(--color-primary);
  text-align: center;
}

.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}

.timeline-item {
  position: relative;
  padding-bottom: 32px;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -33px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid #fff;
  box-shadow: 0 0 0 2px var(--color-primary);
}

.timeline-content {
  background: var(--color-bg-alt);
  padding: 20px;
  border-radius: var(--radius-sm);
}

.timeline-year {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.timeline-content h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.timeline-content p {
  font-size: 15px;
  color: var(--color-text-light);
}

/* === Operators === */
.about-operators {
  margin-bottom: 64px;
}

.about-operators h3 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 24px;
  color: var(--color-primary);
}

.operators-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.operator-card {
  background: var(--color-bg-alt);
  padding: 32px;
  border-radius: var(--radius-md);
  text-align: center;
}

.operator-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  background: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
}

.operator-card h4 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
}

.operator-card p {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* === Team === */
.about-team h3 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 24px;
  color: var(--color-primary);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.team-card {
  background: var(--color-bg-alt);
  padding: 24px;
  border-radius: var(--radius-md);
  text-align: center;
}

.team-avatar {
  width: 80px;
  height: 80px;
  margin: 0 auto 16px;
  background: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
}

.team-card h4 {
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 4px;
}

.team-name {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.team-desc {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.5;
}

/* === Courses Section === */
.courses-section {
  background: var(--color-bg-alt);
}

.course-system {
  margin-bottom: 48px;
}

.course-system h3 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 24px;
  text-align: center;
  color: var(--color-primary);
}

.system-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}

.system-card {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 24px 16px;
  text-align: center;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

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

.system-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.system-card h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.system-card p {
  font-size: 13px;
  color: var(--color-text-light);
  margin-bottom: 8px;
}

.system-count {
  font-size: 12px;
  color: var(--color-primary);
  font-weight: 500;
}

/* === Course Filter === */
.course-filter {
  margin-bottom: 48px;
}

.course-filter h3 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 24px;
  text-align: center;
  color: var(--color-primary);
}

.filter-tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.filter-tab {
  padding: 10px 24px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 500;
  background: #fff;
  color: var(--color-text-light);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

.filter-tab:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.filter-tab.active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.course-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.course-card {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 24px;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  position: relative;
}

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

.course-tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 500;
  margin-bottom: 12px;
}

.culture-tag { background: #e8f4fd; color: var(--color-primary); }
.tech-tag { background: #f0f7ff; color: #5b8cde; }
.farm-tag { background: #e8f8f0; color: var(--color-secondary); }
.sport-tag { background: #fef3e8; color: var(--color-accent); }
.finance-tag { background: #fde8e8; color: var(--color-error); }

.course-card h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.course-card p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.5;
  margin-bottom: 12px;
}

.course-meta {
  display: flex;
  gap: 16px;
  font-size: 13px;
  color: var(--color-text-light);
}

.course-cta {
  text-align: center;
  margin-top: 48px;
}

.course-cta p {
  font-size: 18px;
  margin-bottom: 16px;
}

/* === Programs Section === */
.programs-section {
  background: var(--color-bg);
}

.programs-tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.program-tab {
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 500;
  background: var(--color-bg-alt);
  color: var(--color-text-light);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

.program-tab:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.program-tab.active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.programs-content {
  max-width: 900px;
  margin: 0 auto;
}

.program-panel {
  display: none;
}

.program-panel.active {
  display: block;
}

.program-header {
  margin-bottom: 32px;
}

.program-header h3 {
  font-size: 28px;
  font-weight: 600;
  margin-bottom: 8px;
}

.program-desc {
  font-size: 16px;
  color: var(--color-text-light);
}

.program-details {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  margin-bottom: 32px;
}

.detail-item h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--color-primary);
}

.detail-item p {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.6;
}

.timeline-mini {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.timeline-mini-item {
  display: flex;
  gap: 16px;
  align-items: center;
}

.timeline-mini-item .time {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
  min-width: 60px;
}

.timeline-mini-item .activity {
  font-size: 15px;
  color: var(--color-text);
}

.highlight-list {
  list-style: none;
  padding: 0;
}

.highlight-list li {
  font-size: 15px;
  color: var(--color-text-light);
  padding: 6px 0;
  padding-left: 20px;
  position: relative;
}

.highlight-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 14px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-secondary);
}

.price-note {
  font-style: italic;
  color: var(--color-text-light);
}

/* === Environment Section === */
.environment-section {
  background: var(--color-bg-alt);
}

.env-tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.env-tab {
  padding: 10px 24px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 500;
  background: #fff;
  color: var(--color-text-light);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

.env-tab:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.env-tab.active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.env-gallery {
  max-width: 900px;
  margin: 0 auto;
}

.env-panel {
  display: none;
}

.env-panel.active {
  display: block;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}

.gallery-item {
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition);
}

.gallery-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.gallery-placeholder {
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 14px;
  text-align: center;
  padding: 16px;
}

.gallery-caption {
  padding: 12px 16px;
  background: #fff;
  font-size: 14px;
  color: var(--color-text-light);
  text-align: center;
}

.env-info {
  background: #fff;
  padding: 24px;
  border-radius: var(--radius-md);
}

.env-info h4 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--color-primary);
}

.env-info p {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* === Dining Section === */
.dining-section {
  background: var(--color-bg);
}

.dining-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 48px;
}

.dining-text h3 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--color-primary);
}

.dining-text p {
  font-size: 16px;
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: 16px;
}

.dining-features {
  list-style: none;
  padding: 0;
}

.dining-features li {
  font-size: 15px;
  color: var(--color-text-light);
  padding: 8px 0;
  padding-left: 24px;
  position: relative;
}

.dining-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-secondary);
  font-weight: 700;
}

/* === Pricing Table === */
.dining-pricing {
  margin-bottom: 48px;
}

.dining-pricing h3 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 24px;
  color: var(--color-primary);
  text-align: center;
}

.pricing-table-wrapper {
  overflow-x: auto;
}

.pricing-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.pricing-table th,
.pricing-table td {
  padding: 16px 20px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.pricing-table th {
  background: var(--color-primary);
  color: #fff;
  font-weight: 600;
  font-size: 15px;
}

.pricing-table td {
  font-size: 15px;
  color: var(--color-text);
}

.pricing-table tr:last-child td {
  border-bottom: none;
}

.pricing-table tr:hover td {
  background: var(--color-bg-alt);
}

/* === Menu === */
.dining-menu h3 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 24px;
  color: var(--color-primary);
  text-align: center;
}

.menu-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.menu-card {
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

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

.menu-image {
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  font-weight: 600;
}

.menu-card h4 {
  font-size: 18px;
  font-weight: 600;
  padding: 16px 20px 8px;
}

.menu-items {
  padding: 0 20px 20px;
  list-style: none;
}

.menu-items li {
  font-size: 14px;
  color: var(--color-text-light);
  padding: 4px 0;
}

.menu-items li::before {
  content: '•';
  color: var(--color-secondary);
  margin-right: 8px;
}

/* === News Section === */
.news-section {
  background: var(--color-bg-alt);
}

.news-filter {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.news-filter-btn {
  padding: 10px 24px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 500;
  background: #fff;
  color: var(--color-text-light);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

.news-filter-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.news-filter-btn.active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.news-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-bottom: 40px;
}

.news-list-item {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 24px;
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.news-list-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.news-list-image {
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 16px;
  font-weight: 500;
}

.news-list-content {
  padding: 20px 20px 20px 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.news-list-content .news-date {
  font-size: 13px;
  color: var(--color-text-light);
  margin-bottom: 8px;
}

.news-list-content .news-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.4;
}

.news-list-content .news-desc {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-list-content .news-link {
  font-size: 14px;
  color: var(--color-primary);
  font-weight: 500;
}

.news-pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
}

.pagination-btn {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  background: #fff;
  color: var(--color-text-light);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

.pagination-btn:hover:not(:disabled) {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.pagination-btn.active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.pagination-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* === Contact Section === */
.contact-section {
  background: var(--color-bg);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.contact-icon {
  width: 56px;
  height: 56px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-text h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.contact-text p {
  font-size: 15px;
  color: var(--color-text-light);
}

.phone-number {
  font-size: 24px !important;
  font-weight: 700;
  color: var(--color-primary) !important;
  font-family: var(--font-en);
}

.qrcode-placeholder {
  width: 120px;
  height: 120px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 8px;
  overflow: hidden;
}

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

/* === Contact Form === */
.contact-form-wrapper {
  background: var(--color-bg-alt);
  padding: 32px;
  border-radius: var(--radius-md);
}

.contact-form-wrapper h3 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 24px;
  color: var(--color-primary);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--color-text);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 15px;
  transition: var(--transition);
  background: #fff;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(26, 111, 196, 0.1);
}

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
  border-color: var(--color-error);
}

.form-group .error-msg {
  font-size: 13px;
  color: var(--color-error);
  margin-top: 4px;
  display: none;
}

.form-group .error-msg.show {
  display: block;
}

/* === Footer === */
.footer {
  background: #1a2332;
  color: rgba(255, 255, 255, 0.8);
  padding: 60px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.footer-logo-img {
  height: 40px;
  width: auto;
  object-fit: contain;
}

.footer-logo span {
  font-size: 20px;
  font-weight: 600;
  color: #fff;
}

.footer-desc {
  font-size: 14px;
  line-height: 1.6;
  opacity: 0.8;
}

.footer-links h4,
.footer-contact h4,
.footer-qrcode h4 {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 14px;
  opacity: 0.8;
  transition: var(--transition);
}

.footer-links a:hover {
  opacity: 1;
  color: var(--color-accent);
}

.footer-contact ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-contact li {
  font-size: 14px;
  opacity: 0.8;
}

.footer-qrcode .qrcode-placeholder {
  width: 100px;
  height: 100px;
  overflow: hidden;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  opacity: 0.6;
  margin-bottom: 4px;
}

/* === Lightbox === */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
}

.lightbox.active {
  display: flex;
}

.lightbox-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
}

.lightbox-content {
  position: relative;
  max-width: 90%;
  max-height: 90%;
  z-index: 1;
}

.lightbox-close {
  position: absolute;
  top: -40px;
  right: 0;
  font-size: 32px;
  color: #fff;
  cursor: pointer;
  background: none;
  border: none;
}

.lightbox-image {
  max-width: 100%;
  max-height: 80vh;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.lightbox-caption {
  text-align: center;
  color: #fff;
  margin-top: 16px;
  font-size: 15px;
}

/* === Fade In Animation === */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* === Mobile Menu Overlay === */
.mobile-menu-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.mobile-menu-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* === Responsive === */
@media (max-width: 1024px) {
  .stats-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .highlights-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .quick-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .system-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .course-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .section {
    padding: 60px 0;
  }
  
  .section-title {
    font-size: 28px;
  }
  
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background: #fff;
    flex-direction: column;
    padding: 80px 32px 32px;
    gap: 24px;
    transition: var(--transition);
    z-index: 1001;
    box-shadow: var(--shadow-lg);
  }
  
  .nav-menu.active {
    right: 0;
  }
  
  .nav-menu .nav-link {
    color: var(--color-text);
    font-size: 18px;
  }
  
  .navbar:not(.scrolled) .nav-menu .nav-link {
    color: var(--color-text);
  }
  
  .hamburger {
    display: flex;
  }
  
  .nav-cta {
    display: none;
  }
  
  .hero-title {
    font-size: 32px;
  }
  
  .hero-subtitle {
    font-size: 16px;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    padding: 24px;
  }
  
  .stat-number {
    font-size: 36px;
  }
  
  .highlights-grid {
    grid-template-columns: 1fr;
  }
  
  .quick-grid {
    grid-template-columns: 1fr;
  }
  
  .news-grid {
    grid-template-columns: 1fr;
  }
  
  .about-intro {
    grid-template-columns: 1fr;
  }
  
  .map-grid {
    grid-template-columns: 1fr;
  }
  
  .operators-grid {
    grid-template-columns: 1fr;
  }
  
  .team-grid {
    grid-template-columns: 1fr;
  }
  
  .system-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .course-grid {
    grid-template-columns: 1fr;
  }
  
  .program-details {
    grid-template-columns: 1fr;
  }
  
  .gallery-grid {
    grid-template-columns: 1fr;
  }
  
  .dining-intro {
    grid-template-columns: 1fr;
  }
  
  .menu-grid {
    grid-template-columns: 1fr;
  }
  
  .news-list-item {
    grid-template-columns: 1fr;
  }
  
  .news-list-image {
    height: 120px;
  }
  
  .news-list-content {
    padding: 16px;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .hero-buttons .btn {
    width: 100%;
    max-width: 280px;
  }
  
  .cta-content h2 {
    font-size: 28px;
  }
  
  .about-features {
    flex-wrap: wrap;
    gap: 20px;
  }
  
  .timeline {
    padding-left: 30px;
  }
  
  .timeline::before {
    left: 10px;
  }
  
  .timeline-dot {
    left: -27px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .system-grid {
    grid-template-columns: 1fr;
  }
  
  .filter-tabs {
    gap: 8px;
  }
  
  .filter-tab {
    padding: 8px 16px;
    font-size: 13px;
  }
  
  .env-tabs {
    gap: 8px;
  }
  
  .env-tab {
    padding: 8px 16px;
    font-size: 13px;
  }
}