/**
 * 招牌站视觉 · 对齐 NueKu 纽库 tokens（鲜绿 + 薄荷底 + 琥珀点缀）
 */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Noto+Sans+SC:wght@400;500;600;700&family=Outfit:wght@500;600;700&display=swap');

:root {
  --color-bg-canvas: #f4faf7;
  --color-bg: #ffffff;
  --color-bg-muted: #ecfdf5;
  --color-surface: #ffffff;
  --color-border: #d1e7dd;
  --color-border-strong: #a7d7c4;
  --color-text: #0f172a;
  --color-text-muted: #475569;
  --color-text-subtle: #64748b;
  --color-accent: #059669;
  --color-accent-hover: #047857;
  --color-accent-soft: #14b8a6;
  --color-accent-fg: #ffffff;
  --color-accent-muted: #5eead4;
  --color-lux: #eab308;
  --color-lux-bright: #fde047;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-6: 24px;
  --space-8: 32px;
  --space-12: 48px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --shadow-sm: 0 1px 2px rgba(15, 118, 110, 0.06);
  --shadow-md: 0 10px 28px rgba(15, 118, 110, 0.08), 0 2px 8px rgba(15, 23, 42, 0.04);
  --shadow-lux: 0 0 0 1px rgba(250, 204, 21, 0.35), 0 8px 24px rgba(5, 150, 105, 0.12);
  --container-max: 1200px;
  --header-h: 64px;
  --fs-sm: 14px;
  --fs-base: 16px;
  --fs-lg: 20px;
  --fs-xl: 24px;
  --fs-2xl: 30px;
  --fs-3xl: 36px;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-rendering: optimizeLegibility;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: 'Noto Sans SC', Inter, system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-size: var(--fs-base);
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg-canvas);
}

::selection {
  background: color-mix(in srgb, var(--color-accent-muted) 45%, var(--color-lux-bright) 25%);
  color: var(--color-text);
}

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

h1, h2, h3 {
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

.container-page {
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: max(var(--space-4), env(safe-area-inset-left, 0px));
  padding-right: max(var(--space-4), env(safe-area-inset-right, 0px));
}

@media (max-width: 639px) {
  .container-page {
    padding-left: max(1.25rem, env(safe-area-inset-left, 0px));
    padding-right: max(1.25rem, env(safe-area-inset-right, 0px));
  }
}

/* —— Header —— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  border-bottom: 1px solid color-mix(in srgb, var(--color-border) 90%, var(--color-accent) 8%);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(14px) saturate(1.2);
  box-shadow: 0 1px 0 rgba(16, 185, 129, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  min-height: var(--header-h);
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
  text-decoration: none;
}

.brand-lockup:hover .brand-name {
  color: var(--color-accent-hover);
}

.logo-img {
  height: 36px;
  width: auto;
  display: block;
  filter: drop-shadow(0 1px 2px rgba(5, 150, 105, 0.12));
}

.brand-text {
  line-height: 1.2;
}

.brand-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
  transition: color 150ms ease;
}

.brand-tag {
  display: block;
  font-family: Outfit, Inter, 'Noto Sans SC', sans-serif;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--color-accent);
  margin-top: 2px;
}

@media (max-width: 480px) {
  .brand-tag {
    font-size: 9px;
    letter-spacing: 0.12em;
  }
}

.nav-top {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: auto;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 0.875rem;
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: border-color 160ms ease, background 160ms ease, color 160ms ease, box-shadow 160ms ease;
}

.btn-ghost:hover {
  border-color: color-mix(in srgb, var(--color-accent) 35%, var(--color-border));
  background: color-mix(in srgb, var(--color-accent-muted) 12%, white);
  color: var(--color-accent-hover);
  box-shadow: var(--shadow-md);
}

.btn-ghost--accent {
  color: var(--color-accent-hover);
  border-color: color-mix(in srgb, var(--color-accent) 30%, var(--color-border));
  background: var(--color-bg-muted);
  font-weight: 600;
}

/* —— Hero —— */
.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid color-mix(in srgb, #a7f3d0 70%, white);
  background: linear-gradient(135deg, rgba(236, 253, 245, 0.95) 0%, #fff 45%, rgba(255, 251, 235, 0.85) 100%);
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 100% 70% at 80% -10%, rgba(52, 211, 153, 0.28), transparent 52%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  left: -4rem;
  top: 5rem;
  width: 18rem;
  height: 18rem;
  border-radius: 50%;
  background: rgba(190, 242, 100, 0.22);
  filter: blur(48px);
  pointer-events: none;
}

.hero__inner {
  position: relative;
  padding: 2.5rem 0 2.75rem;
}

@media (min-width: 640px) {
  .hero__inner {
    padding: 3.5rem 0 4rem;
  }
}

.hero__kicker {
  font-family: Outfit, Inter, sans-serif;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-accent-hover);
  margin: 0 0 0.75rem;
}

@media (min-width: 640px) {
  .hero__kicker {
    font-size: 12px;
    letter-spacing: 0.26em;
  }
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-bottom: 0.75rem;
  padding: 0.25rem 0.65rem;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-accent-hover);
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid color-mix(in srgb, var(--color-accent) 25%, var(--color-border));
  border-radius: 9999px;
}

.hero h1 {
  margin: 0;
  font-size: clamp(1.65rem, 4.5vw, 2.75rem);
  font-weight: 700;
  line-height: 1.15;
}

.hero h1 .gradient {
  display: inline;
  background: linear-gradient(90deg, var(--color-accent) 0%, #14b8a6 45%, #d97706 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__lead {
  margin: 1rem 0 0;
  max-width: 42rem;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

@media (min-width: 640px) {
  .hero__lead {
    margin-top: 1.25rem;
    font-size: 1.0625rem;
  }
}

.hero__meta {
  margin: 0.5rem 0 0;
  font-size: var(--fs-sm);
  color: var(--color-text-subtle);
}

.hero--compact .hero__inner {
  padding: 1.75rem 0 2rem;
}

@media (min-width: 640px) {
  .hero--compact .hero__inner {
    padding: 2rem 0 2.25rem;
  }
}

.hero--compact h1 {
  font-size: clamp(1.35rem, 3.5vw, 2rem);
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-accent-fg);
  background: linear-gradient(135deg, #10b981 0%, var(--color-accent-soft) 48%, var(--color-accent) 100%);
  border: 1px solid color-mix(in srgb, var(--color-lux-bright) 70%, white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm), var(--shadow-lux);
  transition: transform 140ms ease, box-shadow 160ms ease, filter 160ms ease;
}

.btn-primary:hover {
  filter: saturate(1.08) brightness(1.03);
  box-shadow: var(--shadow-md), 0 0 0 1px rgba(253, 224, 71, 0.45), 0 12px 28px rgba(20, 184, 166, 0.22);
}

.btn-primary:active {
  transform: translateY(1px);
}

/* —— Main sections —— */
.main-body {
  flex: 1;
}

.section {
  padding: 2.5rem 0 3rem;
}

@media (min-width: 640px) {
  .section {
    padding: 3.5rem 0 4rem;
  }
}

.section-kicker {
  font-family: Outfit, Inter, sans-serif;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-accent);
  margin: 0;
}

.section-title {
  margin: 0.25rem 0 0;
  font-size: var(--fs-xl);
}

.section-desc {
  margin: 0.5rem 0 0;
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  max-width: 36rem;
}

/* —— City grid —— */
.city-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-6);
}

@media (min-width: 640px) {
  .city-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .city-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.city-card {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1.15rem 1.1rem;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid color-mix(in srgb, var(--color-border) 85%, var(--color-accent) 10%);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.city-card:hover {
  border-color: color-mix(in srgb, var(--color-accent) 35%, var(--color-border));
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.city-card__title {
  display: block;
}

.city-card__zh {
  display: block;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  transition: color 150ms ease;
}

.city-card:hover .city-card__zh {
  color: var(--color-accent-hover);
}

.city-card__en {
  display: block;
  font-family: Outfit, Inter, sans-serif;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--color-text-subtle);
  margin-top: 0.2rem;
}

.scene-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.scene-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.55rem;
  font-size: 11px;
  font-weight: 600;
  color: var(--color-text-muted);
  background: var(--color-bg-muted);
  border: 1px solid color-mix(in srgb, var(--color-border) 80%, var(--color-accent) 12%);
  border-radius: 9999px;
  transition: background 150ms ease, color 150ms ease, border-color 150ms ease;
}

.scene-pill:hover {
  color: var(--color-accent-hover);
  background: linear-gradient(135deg, #ecfdf5, #fffbeb);
  border-color: color-mix(in srgb, var(--color-accent) 40%, var(--color-border));
}

/* —— Page content —— */
.page-content {
  padding: 2rem 0 3.5rem;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  font-size: 13px;
  color: var(--color-text-subtle);
  margin-bottom: 0;
}

.breadcrumb a {
  color: var(--color-accent);
  font-weight: 500;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

.breadcrumb span.sep {
  opacity: 0.45;
}

.content-card {
  margin-top: 1.5rem;
  padding: 1.5rem 1.35rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

@media (min-width: 640px) {
  .content-card {
    padding: 1.75rem 1.75rem;
  }
}

.prose p {
  margin: 0 0 1rem;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  line-height: 1.75;
}

.prose p:last-child {
  margin-bottom: 0;
}

.scene-nav-block {
  margin: 1.75rem 0 0;
}

.scene-nav-block__label {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text-subtle);
  margin: 0 0 0.5rem;
}

.cta-panel {
  margin-top: 2rem;
  padding: 1.35rem 1.25rem;
  background: linear-gradient(135deg, #ecfdf5 0%, #fff 50%, #fffbeb 100%);
  border: 1px solid color-mix(in srgb, var(--color-accent) 20%, var(--color-border));
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.cta-panel__title {
  margin: 0 0 0.35rem;
  font-size: 1rem;
  font-weight: 600;
}

.cta-panel__sub {
  margin: 0.75rem 0 0;
  font-size: 13px;
  color: var(--color-text-subtle);
}

.cta-panel__sub a {
  color: var(--color-accent);
  font-weight: 500;
}

.cta-panel__sub a:hover {
  text-decoration: underline;
}

/* —— Footer —— */
.site-footer {
  margin-top: auto;
  border-top: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.75);
  padding: 2rem 0 2.5rem;
  text-align: center;
}

.footer-brand {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 0.35rem;
}

.footer-links {
  margin: 0;
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
}

.footer-links a {
  color: var(--color-accent);
  font-weight: 500;
}

.footer-links a:hover {
  text-decoration: underline;
}

.footer-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1rem;
}

.footer-chip {
  display: inline-flex;
  padding: 0.35rem 0.75rem;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text-muted);
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid color-mix(in srgb, var(--color-border) 80%, var(--color-accent) 12%);
  border-radius: 9999px;
}

.muted {
  margin: 0.75rem 0 0;
  font-size: 12px;
  color: var(--color-text-subtle);
}