:root {
  --bg: #0b0f12;
  --bg2: #0f161a;
  --card: rgba(255, 255, 255, 0.06);
  --card2: rgba(255, 255, 255, 0.085);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.68);
  --muted2: rgba(255, 255, 255, 0.52);
  --border: rgba(255, 255, 255, 0.10);
  --shadow: 0 10px 35px rgba(0, 0, 0, 0.35);

  --accent: #8ee7d1; /* 天青偏青 */
  --accent2: #b6f2e3;
  --accent3: #67c7b0;
  --warm: #d1a57a; /* 土色 */
  --danger: #ff6b6b;

  --radius: 18px;
  --radius-sm: 12px;
  --gap: 18px;
  --container: 1160px;
  --font: "Noto Sans SC", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  --font-kai: "Ma Shan Zheng", "KaiTi", "STKaiti", "楷体", serif;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f6f8fa;
    --bg2: #eef3f2;
    --card: rgba(0, 0, 0, 0.035);
    --card2: rgba(0, 0, 0, 0.055);
    --text: rgba(0, 0, 0, 0.88);
    --muted: rgba(0, 0, 0, 0.62);
    --muted2: rgba(0, 0, 0, 0.48);
    --border: rgba(0, 0, 0, 0.10);
    --shadow: 0 12px 35px rgba(0, 0, 0, 0.10);
  }
}

[data-theme="light"] {
  --bg: #f6f8fa;
  --bg2: #eef3f2;
  --card: rgba(0, 0, 0, 0.035);
  --card2: rgba(0, 0, 0, 0.055);
  --text: rgba(0, 0, 0, 0.88);
  --muted: rgba(0, 0, 0, 0.62);
  --muted2: rgba(0, 0, 0, 0.48);
  --border: rgba(0, 0, 0, 0.10);
  --shadow: 0 12px 35px rgba(0, 0, 0, 0.10);
}

[data-theme="dark"] {
  --bg: #0b0f12;
  --bg2: #0f161a;
  --card: rgba(255, 255, 255, 0.06);
  --card2: rgba(255, 255, 255, 0.085);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.68);
  --muted2: rgba(255, 255, 255, 0.52);
  --border: rgba(255, 255, 255, 0.10);
  --shadow: 0 10px 35px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(900px 520px at 15% 12%, rgba(142, 231, 209, 0.18), transparent 60%),
    radial-gradient(900px 520px at 80% 12%, rgba(209, 165, 122, 0.14), transparent 58%),
    linear-gradient(180deg, var(--bg), var(--bg2));
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

.container {
  width: min(var(--container), calc(100% - 40px));
  margin: 0 auto;
}

.muted {
  color: var(--muted);
}

.skiplink {
  position: absolute;
  left: -999px;
  top: 12px;
  background: var(--bg2);
  border: 1px solid var(--border);
  padding: 10px 12px;
  border-radius: 10px;
  z-index: 999;
}

.skiplink:focus {
  left: 12px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: color-mix(in srgb, var(--bg), transparent 35%);
  border-bottom: 1px solid transparent;
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

.site-header[data-elevate="true"] {
  border-bottom: 1px solid var(--border);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.18);
}

.header-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 14px;
  align-items: center;
  padding: 14px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 240px;
}

.brand-mark {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(145deg, rgba(142, 231, 209, 0.20), rgba(182, 242, 227, 0.10));
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  font-weight: 800;
  letter-spacing: 0.1em;
}

.brand-text {
  display: grid;
  gap: 2px;
}

.brand-name {
  font-weight: 750;
  letter-spacing: 0.04em;
  font-family: var(--font-kai);
}

.brand-sub {
  font-size: 12px;
  color: var(--muted);
}

.nav {
  position: relative;
}

.nav-panel {
  display: flex;
  gap: 14px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg2), transparent 15%);
  border-radius: 999px;
}

.nav-link {
  font-size: 14px;
  color: var(--muted);
  padding: 8px 10px;
  border-radius: 999px;
  transition: background 120ms ease, color 120ms ease;
}

.nav-link:hover,
.nav-link:focus-visible {
  outline: none;
  background: var(--card2);
  color: var(--text);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--card);
}

.nav-toggle-line {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text);
  margin: 4px auto;
  opacity: 0.8;
}

.header-actions {
  display: flex;
  gap: 10px;
  align-items: center;
  justify-content: flex-end;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border-radius: 999px;
  padding: 10px 14px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  font-weight: 650;
  font-size: 14px;
  cursor: pointer;
  transition: transform 120ms ease, background 120ms ease, border-color 120ms ease;
}

.btn:hover {
  transform: translateY(-1px);
  background: var(--card2);
}

.btn:active {
  transform: translateY(0);
}

.btn:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--accent), transparent 35%);
  outline-offset: 2px;
}

.btn-primary {
  background: linear-gradient(145deg, rgba(142, 231, 209, 0.28), rgba(103, 199, 176, 0.20));
  border-color: color-mix(in srgb, var(--accent), transparent 55%);
}

.btn-secondary {
  background: linear-gradient(145deg, rgba(209, 165, 122, 0.18), rgba(142, 231, 209, 0.10));
}

.btn-ghost {
  background: transparent;
}

.btn-icon {
  width: 18px;
  text-align: center;
  opacity: 0.9;
}

.linklike {
  background: transparent;
  border: none;
  padding: 0;
  color: var(--accent2);
  cursor: pointer;
  font-weight: 650;
}

.linklike:hover {
  text-decoration: underline;
}

/* Sections */
.section {
  padding: 72px 0;
}

.section-alt {
  background: color-mix(in srgb, var(--bg2), transparent 35%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-head {
  display: grid;
  gap: 10px;
  margin-bottom: 24px;
}

.section-head h2 {
  font-size: 28px;
  margin: 0;
  letter-spacing: 0.02em;
  font-family: var(--font-kai);
}

.section-sub {
  margin: 0;
  color: var(--muted);
  max-width: 68ch;
  line-height: 1.7;
}

/* Hero */
.hero {
  padding: 84px 0 44px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 26px;
  align-items: start;
}

.eyebrow {
  color: var(--muted);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-size: 12px;
  margin: 0 0 10px;
}

.hero-title {
  margin: 0 0 14px;
  font-size: 42px;
  line-height: 1.08;
  letter-spacing: -0.01em;
  font-family: var(--font-kai);
}

.accent {
  color: var(--accent2);
  text-shadow: 0 0 30px rgba(142, 231, 209, 0.15);
}

.hero-lead {
  margin: 0 0 18px;
  color: var(--muted);
  line-height: 1.8;
}

.hero-cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.stat-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.stat {
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--card), transparent 10%);
  border-radius: var(--radius);
  padding: 12px 14px;
}

.stat-num {
  font-weight: 800;
  letter-spacing: 0.02em;
}

.stat-label {
  color: var(--muted);
  font-size: 12px;
  margin-top: 2px;
}

.hero-media {
  position: relative;
}

.hero-glow {
  position: absolute;
  inset: -20px;
  background:
    radial-gradient(600px 380px at 70% 20%, rgba(142, 231, 209, 0.22), transparent 60%),
    radial-gradient(520px 420px at 20% 70%, rgba(209, 165, 122, 0.18), transparent 62%);
  filter: blur(10px);
  pointer-events: none;
  z-index: -1;
}

.hero-card {
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg2), transparent 8%);
  border-radius: 24px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-card-top {
  display: flex;
  justify-content: space-between;
  padding: 14px 14px 10px;
}

.chip {
  font-size: 12px;
  color: var(--text);
  border: 1px solid var(--border);
  background: var(--card);
  padding: 6px 10px;
  border-radius: 999px;
}

.chip-muted {
  color: var(--muted);
  background: transparent;
}

.hero-card-body {
  padding: 0 14px 14px;
}

.mini-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 12px;
}

.mini {
  text-align: left;
  border: 1px solid var(--border);
  background: linear-gradient(145deg, var(--card), transparent);
  border-radius: var(--radius);
  padding: 12px 12px;
  cursor: pointer;
  transition: transform 120ms ease, background 120ms ease;
}

.mini:hover {
  transform: translateY(-1px);
  background: linear-gradient(145deg, var(--card2), transparent);
}

.mini-title {
  font-weight: 800;
}

.mini-desc {
  display: block;
  color: var(--muted);
  font-size: 12px;
  margin-top: 2px;
}

/* Timeline */
.timeline {
  display: grid;
  gap: 12px;
  position: relative;
  padding-left: 22px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: color-mix(in srgb, var(--accent), transparent 65%);
}

.t-item {
  display: grid;
  grid-template-columns: 20px 1fr;
  gap: 12px;
  align-items: start;
}

.t-dot {
  width: 18px;
  height: 18px;
  border-radius: 999px;
  border: 2px solid color-mix(in srgb, var(--accent2), transparent 30%);
  background: color-mix(in srgb, var(--bg2), transparent 10%);
  margin-top: 8px;
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent), transparent 85%);
}

.t-card {
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: var(--radius);
  padding: 14px 14px;
}

.t-card h3 {
  margin: 0 0 8px;
}

.t-card p {
  margin: 0 0 10px;
  color: var(--muted);
  line-height: 1.7;
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.card {
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: var(--radius);
  padding: 14px 14px;
  display: grid;
  gap: 10px;
}

.card-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}

.badge {
  font-size: 12px;
  color: color-mix(in srgb, var(--accent2), transparent 10%);
  border: 1px solid color-mix(in srgb, var(--accent), transparent 55%);
  background: color-mix(in srgb, var(--accent), transparent 88%);
  padding: 6px 10px;
  border-radius: 999px;
}

.badge-muted {
  color: var(--muted);
  border-color: var(--border);
  background: transparent;
}

.card h3 {
  margin: 0;
}

.card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.card-actions {
  margin-top: 2px;
}

/* Gallery */
.toolbar {
  display: grid;
  grid-template-columns: 1.2fr repeat(3, 1fr) auto;
  gap: 10px;
  align-items: end;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  margin-bottom: 14px;
}

.field {
  display: grid;
  gap: 6px;
}

.field label {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.06em;
}

input,
select,
textarea {
  font: inherit;
  color: var(--text);
  background: color-mix(in srgb, var(--bg2), transparent 8%);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 10px;
}

input::placeholder,
textarea::placeholder {
  color: var(--muted2);
}

.toolbar-reset {
  height: 42px;
  align-self: end;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.g-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  overflow: hidden;
  cursor: pointer;
  transition: transform 120ms ease, background 120ms ease;
}

.g-item:hover {
  transform: translateY(-2px);
  background: var(--card2);
}

.thumb {
  height: 130px;
  background:
    radial-gradient(400px 240px at 25% 20%, rgba(142, 231, 209, 0.26), transparent 58%),
    radial-gradient(420px 260px at 80% 30%, rgba(209, 165, 122, 0.22), transparent 58%),
    linear-gradient(145deg, color-mix(in srgb, var(--bg2), transparent 10%), transparent);
  border-bottom: 1px solid var(--border);
  position: relative;
}

.thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.08) 100%);
  opacity: 0.35;
}

.g-body {
  padding: 12px 12px;
  display: grid;
  gap: 8px;
}

.g-title {
  font-weight: 800;
  letter-spacing: 0.02em;
  line-height: 1.25;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pill {
  font-size: 12px;
  color: var(--muted);
  padding: 5px 9px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: transparent;
}

/* Split panels */
.split {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 12px;
}

.panel {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  padding: 16px;
}

.panel-visual {
  background:
    radial-gradient(560px 360px at 20% 20%, rgba(142, 231, 209, 0.22), transparent 55%),
    radial-gradient(560px 360px at 80% 30%, rgba(209, 165, 122, 0.20), transparent 58%),
    var(--card);
}

.panel h3 {
  margin: 0 0 10px;
}

.checklist {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.8;
}

.quote {
  border: 1px dashed color-mix(in srgb, var(--accent), transparent 55%);
  border-radius: var(--radius);
  padding: 14px;
}

.quote p {
  margin: 0 0 8px;
  font-size: 20px;
  letter-spacing: 0.02em;
}

.pill-row {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* Events */
.event-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.6fr;
  gap: 12px;
}

.event {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  padding: 16px;
}

.event-soft {
  background: linear-gradient(145deg, var(--card), transparent);
}

.event-top {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.tag {
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--accent), transparent 88%);
}

.event-cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 12px;
}

.event h4 {
  margin: 0 0 6px;
}

.event-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 14px;
}

/* Visit */
.visit-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 12px;
}

.info-list {
  display: grid;
  gap: 10px;
  margin-bottom: 14px;
}

.info {
  display: grid;
  gap: 4px;
}

.map-slot {
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 14px;
  min-height: 160px;
  display: grid;
  align-content: start;
  gap: 8px;
}

.map-badge {
  display: inline-flex;
  width: fit-content;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  font-size: 12px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.form label {
  display: grid;
  gap: 6px;
}

.form label span {
  font-size: 12px;
  color: var(--muted);
}

.span2 {
  grid-column: 1 / -1;
}

.form-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
  flex-wrap: wrap;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 22px 0;
}

.footer-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}

.footer-links {
  display: flex;
  gap: 14px;
  color: var(--muted);
}

.footer-links a:hover {
  color: var(--text);
}

.footer-brand {
  font-weight: 800;
  letter-spacing: 0.02em;
  margin-bottom: 6px;
}

/* Modal */
.modal::backdrop {
  background: rgba(0, 0, 0, 0.55);
}

.modal {
  width: min(820px, calc(100% - 18px));
  border: none;
  padding: 0;
  background: transparent;
}

.modal-card {
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg2), transparent 6%);
  border-radius: 22px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.modal-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: start;
  padding: 14px 14px;
  border-bottom: 1px solid var(--border);
}

.modal-eyebrow {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.modal-title {
  margin: 4px 0 0;
}

.modal-body {
  padding: 14px;
  color: var(--muted);
  line-height: 1.85;
}

.modal-foot {
  padding: 14px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
}

.icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  cursor: pointer;
}

.icon-btn:hover {
  background: var(--card2);
}

/* Responsive */
@media (max-width: 980px) {
  .header-row {
    grid-template-columns: 1fr auto;
  }
  .header-actions {
    display: none;
  }
  .nav-toggle {
    display: inline-grid;
    place-items: center;
  }
  .nav-panel {
    display: none;
    position: absolute;
    right: 0;
    top: 52px;
    border-radius: 16px;
    padding: 10px;
    width: min(280px, 92vw);
    flex-direction: column;
    align-items: stretch;
    background: color-mix(in srgb, var(--bg2), transparent 2%);
    box-shadow: var(--shadow);
  }
  .nav-panel[data-open="true"] {
    display: flex;
  }
  .nav-link {
    padding: 10px 12px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
  }
  .hero-title {
    font-size: 36px;
  }

  .card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .toolbar {
    grid-template-columns: 1fr 1fr;
  }
  .toolbar-reset {
    grid-column: 1 / -1;
  }
  .gallery-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .split {
    grid-template-columns: 1fr;
  }
  .event-grid {
    grid-template-columns: 1fr;
  }
  .visit-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .hero-title {
    font-size: 30px;
  }
  .stat-row {
    grid-template-columns: 1fr;
  }
  .card-grid {
    grid-template-columns: 1fr;
  }
  .gallery-grid {
    grid-template-columns: 1fr;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
}