:root {
  --color-primary: #1a5f4a;
  --color-primary-dark: #0d4f4f;
  --color-accent: #e85a4f;
  --color-bg: #f8f9fa;
  --color-surface: #ffffff;
  --color-text: #1b2b29;
  --color-muted: #5b6d6b;
  --color-border: #e2e8e8;
  --shadow-lg: 0 20px 40px rgba(13, 79, 79, 0.16);
  --shadow-md: 0 12px 24px rgba(13, 79, 79, 0.12);
  --radius-lg: 18px;
  --radius-md: 12px;
  --max-width: 1200px;
  --header-height: 76px;
  --transition: 220ms ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Noto Sans SC", "Open Sans", system-ui, -apple-system, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
}

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

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

h1, h2, h3, h4 {
  font-family: "Merriweather", "Noto Serif SC", serif;
  margin: 0 0 0.6rem;
  line-height: 1.2;
}

p {
  margin: 0 0 1rem;
}

.container {
  width: min(var(--max-width), 92%);
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
  width: auto;
  height: auto;
  padding: 0.5rem 1rem;
  background: var(--color-primary);
  color: #fff;
  border-radius: 6px;
  z-index: 1000;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(248, 249, 250, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: 1.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.4px;
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--color-primary), #2c8a6c);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.4);
}

.brand-text {
  font-size: 1.2rem;
}

.nav {
  display: flex;
  gap: 1.2rem;
  align-items: center;
}

.nav-link {
  font-size: 0.95rem;
  color: var(--color-muted);
  transition: color var(--transition);
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--color-primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.lang-toggle {
  border: 1px solid var(--color-border);
  background: #fff;
  color: var(--text-light);
  border-radius: 999px;
  padding: 0.3rem 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: border var(--transition), color var(--transition);
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
}

.lang-sep {
  color: var(--color-border);
  font-weight: 300;
}

.lang-opt {
  transition: color var(--transition);
}

.lang-toggle:hover,
.lang-toggle:focus-visible {
  border-color: var(--color-primary);
}

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

.menu-bar {
  width: 22px;
  height: 2px;
  background: var(--color-primary-dark);
  border-radius: 999px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 0.8rem;
  padding: 1rem 1.5rem 1.5rem;
  background: #fff;
  border-bottom: 1px solid var(--color-border);
}

.mobile-menu:not([hidden]) {
  display: flex;
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 4.5rem 0 5rem;
  background: radial-gradient(circle at top left, rgba(26, 95, 74, 0.18), transparent 50%),
    linear-gradient(135deg, #f0f6f4, #ffffff 45%, #eef7f4);
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: rgba(26, 95, 74, 0.12);
  filter: blur(0.5px);
  z-index: 0;
}

.hero::before {
  top: -120px;
  right: -80px;
}

.hero::after {
  bottom: -160px;
  left: -120px;
}

.hero-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 3rem;
  align-items: center;
}

.hero-text h1 {
  font-size: clamp(2.2rem, 3.5vw, 3.4rem);
  color: var(--color-primary-dark);
}

.eyebrow {
  font-size: 0.95rem;
  letter-spacing: 0.16rem;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--color-muted);
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.6rem;
  border-radius: 999px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  cursor: pointer;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

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

.btn-outline:hover,
.btn-outline:focus-visible {
  background: rgba(26, 95, 74, 0.1);
}

.hero-meta {
  display: flex;
  gap: 1.5rem;
  margin-top: 2.5rem;
  flex-wrap: wrap;
}

.meta-card {
  padding: 0.85rem 1rem;
  background: #fff;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  min-width: 180px;
}

.meta-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1rem;
  color: var(--color-muted);
}

.meta-value {
  display: block;
  font-weight: 600;
  margin-top: 0.35rem;
}

.hero-panel {
  position: relative;
  padding: 2.4rem;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(13, 79, 79, 0.12);
}

.hero-image-wrap {
  text-align: center;
}

.hero-image {
  width: 100%;
  border-radius: var(--radius-md);
  object-fit: cover;
}

.hero-image-caption {
  margin-top: 0.75rem;
  font-size: 0.85rem;
  color: var(--color-muted);
  line-height: 1.5;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.stat-card {
  padding: 0.8rem;
  background: #f6faf8;
  border-radius: var(--radius-md);
  text-align: center;
  border: 1px solid rgba(26, 95, 74, 0.12);
}

.stat-label {
  display: block;
  font-size: 0.8rem;
  color: var(--color-muted);
}

.stat-value {
  display: block;
  font-weight: 700;
  margin-top: 0.35rem;
  color: var(--color-primary-dark);
}

.section {
  padding: 4rem 0;
}

.section.alt {
  background: #f2f6f5;
}

.page-hero {
  padding: 3.5rem 0 2.5rem;
  background: linear-gradient(120deg, rgba(26, 95, 74, 0.12), rgba(248, 249, 250, 0.9));
  border-bottom: 1px solid var(--color-border);
}

.page-hero p {
  color: var(--color-muted);
  max-width: 720px;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.section-subtitle {
  color: var(--color-muted);
  max-width: 520px;
}

.card-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feature-grid,
.resource-grid,
.opening-grid {
  display: grid;
  gap: 1.8rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feature-card {
  background: #fff;
  padding: 2rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.04);
}

.image-placeholder {
  height: 180px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(26, 95, 74, 0.15), rgba(232, 90, 79, 0.18));
  border: 1px dashed rgba(26, 95, 74, 0.35);
  margin-bottom: 1rem;
}

.info-card {
  background: #fff;
  padding: 2rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.04);
  transition: transform var(--transition), box-shadow var(--transition);
}

.info-card:hover,
.info-card:focus-within {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-accent);
  background: rgba(26, 95, 74, 0.08);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  margin-bottom: 0.6rem;
}

.text-link {
  color: var(--color-accent);
  font-weight: 600;
}

.news-list {
  display: grid;
  gap: 1.5rem;
}

.news-item {
  background: #fff;
  padding: 1.4rem 1.6rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 1.5rem;
}

.news-date {
  font-weight: 700;
  color: var(--color-primary);
  font-size: 0.95rem;
}

.news-title {
  font-weight: 600;
}

.section-actions {
  margin-top: 2rem;
}

.link-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
}

.filter-bar {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 1.5rem;
  font-weight: 600;
}

.filter-bar select {
  padding: 0.4rem 0.8rem;
  border-radius: 8px;
  border: 1px solid var(--color-border);
}

.pub-list {
  display: grid;
  gap: 1.2rem;
}

.pub-item {
  background: #fff;
  padding: 1.4rem 1.6rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.pub-meta {
  color: var(--color-muted);
  font-size: 0.9rem;
}

.pub-item a {
  color: var(--color-accent);
  font-weight: 600;
}

.pub-item strong {
  color: var(--color-primary-dark);
}

.resource-list {
  margin: 0.8rem 0 0;
  padding-left: 1.2rem;
  color: var(--color-muted);
}

.resource-list a {
  color: var(--color-primary);
  font-weight: 600;
}

.timeline {
  display: grid;
  gap: 1.6rem;
  position: relative;
  padding-left: 1.5rem;
}

.timeline::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0.3rem;
  width: 2px;
  height: 100%;
  background: rgba(26, 95, 74, 0.2);
}

.timeline-item {
  position: relative;
  padding: 1.2rem 1.4rem;
  background: #fff;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.timeline-item strong {
  display: block;
  color: var(--color-primary);
  font-size: 0.9rem;
  margin-bottom: 0.4rem;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -1.3rem;
  top: 1.4rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-accent);
}

.team-section {
  margin-bottom: 2.5rem;
}

.team-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.team-card {
  background: #fff;
  padding: 1.2rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.04);
}

.team-photo {
  height: 160px;
  border-radius: var(--radius-md);
  background: #eef4f2;
  border: 1px solid rgba(26, 95, 74, 0.1);
  margin-bottom: 0.8rem;
  overflow: hidden;
}

.team-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.application-card {
  margin-top: 2rem;
  padding: 1.6rem;
  border-radius: var(--radius-md);
  background: #fff;
  border: 1px solid var(--color-border);
}

.contact-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.map-placeholder {
  min-height: 220px;
  border-radius: var(--radius-md);
  background: #fff;
  border: 1px dashed var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-muted);
}

.map-embed {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.map-embed iframe {
  width: 100%;
  height: 350px;
  border: 0;
  display: block;
}

.link-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.5rem 1.8rem;
  background: #fff;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  transition: border var(--transition), transform var(--transition);
  cursor: pointer;
}

.link-card svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: var(--color-primary);
  stroke-width: 2;
}

.link-card:hover,
.link-card:focus-visible {
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

.site-footer {
  padding: 3rem 0 1.5rem;
  background: #0f2f2c;
  color: #e5f3ef;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 2rem;
}

.site-footer h3,
.site-footer h4 {
  color: #fff;
}

.footer-bottom {
  text-align: center;
  margin-top: 2rem;
  font-size: 0.85rem;
  color: rgba(229, 243, 239, 0.7);
}

.block {
  display: block;
}

[data-lang] {
  display: none;
}

body.lang-zh [data-lang="zh"] {
  display: inline;
}

body.lang-zh [data-lang="zh"].block {
  display: block;
}

body.lang-en [data-lang="en"] {
  display: inline;
}

body.lang-en [data-lang="en"].block {
  display: block;
}

/* Lang toggle highlight */
body.lang-en .lang-opt[data-lang-opt="en"] {
  color: var(--color-primary);
}

body.lang-en .lang-opt[data-lang-opt="zh"] {
  color: var(--text-light);
}

body.lang-zh .lang-opt[data-lang-opt="zh"] {
  color: var(--color-primary);
}

body.lang-zh .lang-opt[data-lang-opt="en"] {
  color: var(--text-light);
}

@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
  }

  .card-grid,
  .link-grid,
  .feature-grid,
  .resource-grid,
  .opening-grid,
  .team-grid,
  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .section-header {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 860px) {
  .nav {
    display: none;
  }

  .menu-toggle {
    display: inline-flex;
  }
}

@media (max-width: 768px) {
  .hero {
    padding: 3.5rem 0 4rem;
  }

  .news-item {
    grid-template-columns: 1fr;
  }

  .stat-grid {
    grid-template-columns: 1fr;
  }

  .card-grid,
  .link-grid,
  .feature-grid,
  .resource-grid,
  .opening-grid,
  .team-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }
}

/* Photo Gallery */
.photo-gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.gallery-item {
  margin: 0;
  border-radius: 12px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.gallery-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}

.gallery-item img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  display: block;
}

.gallery-item figcaption {
  padding: 0.75rem 1rem;
  font-size: 0.9rem;
  color: var(--text);
  text-align: center;
}

@media (max-width: 640px) {
  .photo-gallery {
    grid-template-columns: 1fr;
  }
  .gallery-item img {
    height: 220px;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto;
    transition: none !important;
    animation: none !important;
  }
}