/* ===== RESET & ROOT ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --green-900: #1a3c2a;
  --green-700: #2d6a4f;
  --green-500: #40916c;
  --green-300: #95d5b2;
  --green-100: #d8f3dc;
  --earth: #b08968;
  --earth-dark: #8b6f47;
  --earth-light: #ddb892;
  --sky: #1a759f;
  --slate-900: #0f172a;
  --slate-700: #334155;
  --slate-500: #64748b;
  --slate-300: #cbd5e1;
  --slate-100: #f1f5f9;
  --white: #fff;
  --shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-lg: 0 10px 25px rgba(0,0,0,0.08), 0 4px 10px rgba(0,0,0,0.04);
  --radius: 12px;
  --radius-sm: 8px;
  --max-w: 1200px;
  --font-cn: "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-en: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
}

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--font-cn);
  color: var(--slate-700);
  line-height: 1.7;
  background: var(--slate-100);
}
html[lang="en"] body { font-family: var(--font-en); }
a { color: var(--green-500); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--green-700); }

/* ===== HEADER / NAV ===== */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,0.92); backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(0,0,0,0.05);
  transition: all 0.3s ease;
}
.header.scrolled { background: rgba(255,255,255,0.98); box-shadow: 0 1px 8px rgba(0,0,0,0.06); }
.header-inner {
  max-width: var(--max-w); margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px; height: 64px;
}
.logo {
  font-size: 1.3rem; font-weight: 800; color: var(--green-700);
  letter-spacing: 1px; text-decoration: none; flex-shrink: 0;
}
.logo:hover { color: var(--green-500); }
.nav { display: flex; align-items: center; gap: 1px; }
.nav > a {
  padding: 8px 14px; border-radius: 8px;
  font-size: 0.88rem; font-weight: 500;
  color: var(--slate-500); text-decoration: none;
  transition: all 0.2s; white-space: nowrap;
}
.nav > a:hover { color: var(--green-700); background: rgba(45,106,79,0.06); }
.nav > a.nav-active { color: var(--green-700); font-weight: 600; }

/* Dropdown */
.nav-dropdown { position: relative; }
.nav-more {
  display: flex; align-items: center; gap: 3px;
  cursor: pointer; user-select: none;
}
.dropdown-content {
  position: absolute; top: 100%; right: 0; margin-top: 6px;
  min-width: 150px; background: var(--white);
  border-radius: 12px; box-shadow: 0 8px 30px rgba(0,0,0,0.12);
  padding: 6px; opacity: 0; visibility: hidden;
  transform: translateY(-6px); transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 1001;
}
.nav-dropdown:hover .dropdown-content,
.nav-dropdown:focus-within .dropdown-content { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown-content a {
  display: block; padding: 8px 14px; font-size: 0.85rem;
  border-radius: 6px; color: var(--slate-500);
}
.dropdown-content a:hover { background: var(--green-100); color: var(--green-700); }

.lang-switch { display: flex; gap: 3px; margin-left: 8px; flex-shrink: 0; }
.lang-btn {
  padding: 4px 10px; border: 1px solid var(--slate-300);
  border-radius: 6px; background: transparent; cursor: pointer;
  font-size: 0.78rem; font-weight: 500; color: var(--slate-500);
  transition: all 0.2s;
}
.lang-btn:hover { border-color: var(--green-500); color: var(--green-500); }
.lang-btn.active { background: var(--green-500); color: var(--white); border-color: var(--green-500); }

.mobile-toggle { display: none; background: none; border: none; font-size: 1.5rem; cursor: pointer; color: var(--slate-700); padding: 4px; }

/* ===== HERO ===== */
.hero {
  margin-top: 64px; min-height: 80vh;
  background: linear-gradient(135deg, #1a3c2a 0%, #2d6a4f 30%, #1a759f 70%, #0d4f6b 100%);
  background-size: 400% 400%; animation: heroGrad 15s ease infinite;
  display: flex; align-items: center; justify-content: center; text-align: center;
  padding: 80px 24px; position: relative; overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 320'%3E%3Cpath fill='rgba(255,255,255,0.03)' d='M0,160L60,176C120,192,240,224,360,213.3C480,203,600,149,720,138.7C840,128,960,160,1080,181.3C1200,203,1320,213,1380,218.7L1440,224L1440,320L1380,320C1320,320,1200,320,1080,320C960,320,840,320,720,320C600,320,480,320,360,320C240,320,120,320,60,320L0,320Z'/%3E%3C/svg%3E") bottom/cover no-repeat;
  pointer-events: none;
}
.hero-content { position: relative; z-index: 1; max-width: 800px; }
.hero h1 {
  font-size: 4.5rem; font-weight: 800; color: var(--white);
  text-shadow: 0 2px 30px rgba(0,0,0,0.2); margin-bottom: 4px;
  letter-spacing: 6px; line-height: 1.2;
}
.hero .subtitle {
  font-size: 1.15rem; color: rgba(255,255,255,0.7); margin-bottom: 16px;
  font-weight: 400; letter-spacing: 2px;
}
.hero p {
  font-size: 1.1rem; color: rgba(255,255,255,0.75); margin-bottom: 36px;
  max-width: 560px; margin-left: auto; margin-right: auto; line-height: 1.8;
}

.hero-stats {
  display: flex; gap: 32px; justify-content: center; flex-wrap: wrap;
  margin-bottom: 36px;
}
.hero-stat { text-align: center; }
.hero-stat-value {
  font-size: 2rem; font-weight: 800; color: var(--white);
  text-shadow: 0 2px 10px rgba(0,0,0,0.15);
}
.hero-stat-label { font-size: 0.8rem; color: rgba(255,255,255,0.6); margin-top: 2px; letter-spacing: 1px; }

.hero-cta {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 16px 40px; border-radius: 50px;
  background: var(--earth); color: var(--white); font-size: 1.05rem;
  font-weight: 600; transition: all 0.3s; border: none; cursor: pointer;
  text-decoration: none;
}
.hero-cta:hover { background: var(--earth-light); color: var(--white); transform: translateY(-2px); box-shadow: 0 8px 25px rgba(0,0,0,0.2); }

@keyframes heroGrad {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ===== SECTION GENERAL ===== */
.section {
  padding: 72px 24px;
}
.section:nth-child(even) { background: var(--white); }
.section-inner { max-width: var(--max-w); margin: 0 auto; }
.section-title {
  font-size: 1.8rem; font-weight: 700; color: var(--green-900);
  margin-bottom: 8px; text-align: center;
}
.section-subtitle {
  text-align: center; color: var(--slate-500); margin-bottom: 40px;
  font-size: 1rem; max-width: 600px; margin-left: auto; margin-right: auto;
}

/* ===== STATS (Overview) ===== */
.stats-grid {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px;
  margin-bottom: 48px;
}
.stat-card {
  background: var(--white); border-radius: var(--radius);
  padding: 20px 12px; text-align: center; box-shadow: var(--shadow);
  border: 1px solid rgba(0,0,0,0.04);
}
.stat-card .stat-value { font-size: 1.25rem; font-weight: 700; color: var(--green-700); }
.stat-card .stat-label { font-size: 0.78rem; color: var(--slate-500); margin-top: 4px; }

.features-list {
  list-style: none; display: flex; flex-wrap: wrap;
  gap: 8px; max-width: 900px; margin: 0 auto;
  justify-content: center;
}
.features-list li {
  padding: 8px 12px 8px 30px; position: relative;
  background: rgba(255, 255, 255, 0.72); border-radius: 999px;
  font-size: 0.84rem; color: var(--slate-500);
  line-height: 1.5;
}
.features-list li::before {
  content: "\2714";
  position: absolute;
  left: 12px;
  top: 8px;
  color: var(--green-700);
  font-weight: 800;
}

/* ===== SECTIONS (Stage Cards) ===== */
.region-group { margin-bottom: 36px; }
.region-header {
  display: flex; align-items: center; gap: 12px; padding: 14px 20px;
  border-radius: var(--radius); margin-bottom: 16px; cursor: default;
  border: 1px solid rgba(0,0,0,0.04);
}
.region-header.west { background: linear-gradient(135deg, #e0f2fe, #dbeafe); }
.region-header.central { background: linear-gradient(135deg, #d1fae5, #a7f3d0); }
.region-header.east { background: linear-gradient(135deg, #fef3c7, #fde68a); }
.region-header.peninsula { background: linear-gradient(135deg, #ede9fe, #ddd6fe); }
.region-header h3 { font-size: 1.1rem; font-weight: 700; flex-shrink: 0; }
.region-header.west h3 { color: #0369a1; }
.region-header.central h3 { color: #065f46; }
.region-header.east h3 { color: #92400e; }
.region-header.peninsula h3 { color: #5b21b6; }
.region-header .region-desc { font-size: 0.82rem; color: var(--slate-500); flex: 1; }
.region-header .region-badge {
  padding: 2px 12px; border-radius: 20px; font-size: 0.75rem; font-weight: 600;
  background: rgba(255,255,255,0.7); flex-shrink: 0;
}

.sections-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 16px; }

.section-card {
  background: var(--white); border-radius: var(--radius);
  box-shadow: var(--shadow); overflow: hidden;
  transition: all 0.2s ease; border: 1px solid rgba(0,0,0,0.04);
  position: relative;
}
.section-card-link {
  display: block;
  color: inherit;
  text-decoration: none;
}
.section-card-link:hover,
.section-card-link:focus {
  color: inherit;
  outline: none;
}
.section-card-link:focus-visible {
  border-color: var(--green-500);
  box-shadow: 0 0 0 3px rgba(47, 138, 99, 0.18), var(--shadow-lg);
}
.section-card:hover {
  box-shadow: var(--shadow-lg); transform: translateY(-2px);
  border-color: var(--green-300);
}
.section-card-header {
  padding: 18px 20px 10px; display: flex; align-items: flex-start;
  justify-content: space-between; gap: 12px;
}
.section-card-header h3 { font-size: 1rem; font-weight: 800; color: var(--slate-900); flex: 1; line-height: 1.45; }
.badge {
  display: inline-block; padding: 2px 10px; border-radius: 20px;
  font-size: 0.7rem; font-weight: 600; flex-shrink: 0;
}
.badge-1 { background: #d1fae5; color: #065f46; }
.badge-2 { background: #fef3c7; color: #92400e; }
.badge-3 { background: #fee2e2; color: #991b1b; }
.badge-4 { background: #fce7f3; color: #9d174d; }

.section-card-body { padding: 0 20px 16px; }
.section-card-body p {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  font-size: 0.84rem;
  color: var(--slate-500);
  margin: 12px 0 0;
  line-height: 1.65;
}
.section-meta {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; color: var(--slate-500);
}
.section-meta span {
  min-width: 0;
  padding: 8px 9px;
  border-radius: var(--radius-sm);
  background: #f8faf9;
  border: 1px solid rgba(18, 53, 36, 0.06);
}
.section-meta strong {
  display: block;
  color: var(--green-900);
  font-size: 0.88rem;
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.section-meta em {
  display: block;
  margin-top: 3px;
  color: var(--slate-300);
  font-size: 0.7rem;
  font-style: normal;
  font-weight: 700;
}
.extra-meta {
  display: flex; gap: 10px; flex-wrap: wrap; margin-top: 8px; padding-top: 8px;
  border-top: 1px solid var(--slate-100); font-size: 0.75rem; color: var(--slate-500);
}
.section-card-footnote {
  display: block;
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--slate-100);
  color: var(--slate-300);
  font-size: 0.76rem;
}
.section-card-footnote span {
  display: block;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.section-card-footnote span:last-child {
  text-align: right;
}
.section-card-footer {
  padding: 10px 20px; background: var(--slate-100);
  font-size: 0.78rem; color: var(--slate-500);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 6px;
}
.region-tag {
  position: absolute; top: 0; right: 0;
  padding: 3px 12px; font-size: 0.68rem; font-weight: 600;
  border-radius: 0 var(--radius) 0 var(--radius-sm);
}
.region-tag.west { background: #dbeafe; color: #1e40af; }
.region-tag.central { background: #a7f3d0; color: #065f46; }
.region-tag.east { background: #fde68a; color: #92400e; }
.region-tag.peninsula { background: #ddd6fe; color: #5b21b6; }

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .nav {
    position: fixed; top: 0; right: -280px; bottom: 0;
    width: 280px; flex-direction: column; align-items: stretch;
    background: var(--white); padding: 24px 16px; gap: 2px;
    box-shadow: -4px 0 20px rgba(0,0,0,0.1);
    z-index: 999; transition: right 0.3s ease;
  }
  .nav.open { right: 0; }
  .nav a { padding: 10px 16px; font-size: 0.9rem; border-radius: 8px; }
  .mobile-toggle { display: block; }
  .nav-dropdown .nav-more { display: none; }
  .dropdown-content {
    position: static; opacity: 1; visibility: visible;
    transform: none; box-shadow: none; padding: 0 0 0 12px;
    border-radius: 0; min-width: auto;
  }
  .lang-switch { margin-left: 0; padding: 12px 16px 0; border-top: 1px solid var(--slate-100); margin-top: 8px; }
  .lang-btn { flex: 1; text-align: center; padding: 8px; }
  
  .stats-grid { grid-template-columns: repeat(3, 1fr); }
  .sections-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 2.8rem; }
  .hero .subtitle { font-size: 1rem; }
  .section { padding: 48px 16px; }
}

@media (max-width: 480px) {
  .header-inner { padding: 0 12px; }
  .nav { width: 240px; right: -240px; }
  .logo { font-size: 1.1rem; }
  .hero h1 { font-size: 2rem; }
  .hero-stats { gap: 16px; }
  .hero-stat-value { font-size: 1.5rem; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .section-title { font-size: 1.4rem; }
}


/* ===== SECTION COMPONENTS ===== */

/* Filter */
.filter-bar {
  display: flex; gap: 12px; flex-wrap: wrap; justify-content: center;
  margin-bottom: 32px; align-items: center;
}
.filter-bar label { font-size: 0.85rem; color: var(--slate-500); font-weight: 500; }
.filter-select {
  padding: 8px 16px; border: 1px solid var(--slate-300); border-radius: var(--radius-sm);
  font-size: 0.9rem; background: var(--white); color: var(--slate-700);
  cursor: pointer; transition: border-color 0.2s;
}
.filter-select:hover, .filter-select:focus { border-color: var(--green-500); outline: none; }

/* Transport */
.transport-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.transport-card { background: var(--white); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); }
.transport-card h3 { font-size: 1.05rem; color: var(--green-700); margin-bottom: 8px; }
.transport-card p { font-size: 0.9rem; color: var(--slate-500); }
.access-list { list-style: none; margin-top: 24px; }
.access-list li { padding: 8px 12px; border-bottom: 1px solid var(--slate-100); font-size: 0.85rem; }
.tips-list { list-style: none; margin-top: 16px; }
.tips-list li { padding: 6px 0 6px 24px; position: relative; font-size: 0.85rem; color: var(--slate-500); }
.tips-list li::before { content: '\1F4CD'; position: absolute; left: 0; }

/* Preparation */
.prep-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.prep-card { background: var(--white); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); }
.prep-card h3 { font-size: 1.05rem; color: var(--green-700); margin-bottom: 12px; }
.prep-card ul { list-style: none; }
.prep-card ul li { padding: 5px 0 5px 20px; position: relative; font-size: 0.85rem; color: var(--slate-500); }
.prep-card ul li::before { content: '\2605'; position: absolute; left: 0; color: var(--green-500); }

/* Highlights */
.highlights-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 20px; }
.highlight-card { background: var(--white); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); transition: all 0.2s; }
.highlight-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.highlight-icon { font-size: 2rem; margin-bottom: 8px; }
.highlight-card h3 { font-size: 1rem; color: var(--slate-900); margin-bottom: 8px; }
.highlight-card p { font-size: 0.85rem; color: var(--slate-500); }
.highlight-type { display: inline-block; margin-top: 8px; padding: 2px 10px; border-radius: 20px; font-size: 0.7rem; font-weight: 600; }
.type-natural { background: var(--green-100); color: var(--green-700); }
.type-cultural { background: #fef3c7; color: #92400e; }

/* Map */
.map-container { width: 100%; height: 480px; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-lg); margin-top: 24px; }
#routeMap { width: 100%; height: 100%; }

/* YK */
.yk-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-top: 24px; }
.yk-card { background: var(--white); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); text-align: center; }
.yk-card .yk-number { font-size: 1.4rem; font-weight: 800; color: var(--green-700); }
.yk-card .yk-label { font-size: 0.8rem; color: var(--slate-500); margin-top: 4px; }
.yk-note { margin-top: 24px; padding: 14px 20px; background: #fef3c7; border-radius: var(--radius); border: 1px solid #fde68a; display: flex; align-items: center; gap: 12px; font-size: 0.85rem; color: #92400e; }

/* Gallery */
.gallery-grid { columns: 3 220px; column-gap: 16px; margin-top: 24px; }
.gallery-item { break-inside: avoid; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); display: block; margin: 0 0 16px; position: relative; transition: all 0.2s; background: var(--white); }
.gallery-item:hover { transform: scale(1.02); box-shadow: var(--shadow-lg); }
.gallery-item img { display: block; width: 100%; height: auto; object-fit: contain; }
.gallery-caption { position: absolute; left: 0; right: 0; bottom: 0; z-index: 2; padding: 28px 14px 12px; color: #fff; background: linear-gradient(180deg, rgba(8, 31, 22, 0), rgba(8, 31, 22, 0.76)); text-shadow: 0 2px 16px rgba(0, 0, 0, 0.35); }
.gallery-caption strong { display: block; font-size: 0.92rem; line-height: 1.4; font-weight: 700; }
.gallery-caption span { display: block; margin-top: 3px; font-size: 0.74rem; opacity: 0.9; }
.gallery-more-wrap { display: flex; justify-content: center; margin-top: 18px; }
.gallery-more-btn { border: 1px solid rgba(18, 53, 36, 0.14); border-radius: 999px; background: var(--green-700); color: var(--white); padding: 10px 26px; font-size: 0.88rem; font-weight: 700; cursor: pointer; box-shadow: var(--shadow); transition: background 0.2s, transform 0.2s, box-shadow 0.2s; }
.gallery-more-btn:hover { background: var(--green-500); transform: translateY(-1px); box-shadow: var(--shadow-lg); }
.gallery-note { text-align: center; margin-top: 16px; padding: 12px; background: var(--slate-100); border-radius: var(--radius); font-size: 0.82rem; color: var(--slate-500); }

/* Downloads */
.download-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; margin-top: 24px; }
.download-card { background: var(--white); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); text-align: center; transition: all 0.2s; }
.download-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.download-card .download-icon { font-size: 2.5rem; margin-bottom: 12px; }
.download-card h3 { font-size: 1rem; color: var(--green-700); margin-bottom: 8px; }
.download-card p { font-size: 0.82rem; color: var(--slate-500); }
.download-btn { display: inline-block; margin-top: 12px; padding: 8px 24px; background: var(--green-500); color: var(--white); border-radius: 50px; font-size: 0.82rem; font-weight: 600; transition: all 0.2s; border: none; cursor: pointer; }
.download-btn:hover { background: var(--green-700); color: var(--white); }

/* Elevation */
.elevation-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 32px; }
.elevation-stat { background: var(--white); border-radius: var(--radius); padding: 24px; text-align: center; box-shadow: var(--shadow); border-top: 3px solid var(--earth); }
.elevation-stat-value { font-size: 1.3rem; font-weight: 700; color: var(--green-700); }
.elevation-stat-label { font-size: 0.78rem; color: var(--slate-500); margin-top: 4px; }
.elevation-chart { background: var(--white); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); height: 200px; position: relative; overflow: hidden; }
.elevation-chart svg { width: 100%; height: 100%; }

/* FAQ */
.faq-list { max-width: 700px; margin: 0 auto; }
.faq-item { background: var(--white); border-radius: var(--radius); margin-bottom: 10px; box-shadow: var(--shadow); overflow: hidden; }
.faq-question { padding: 16px 20px; cursor: pointer; font-size: 0.95rem; font-weight: 600; color: var(--green-700); display: flex; justify-content: space-between; align-items: center; transition: background 0.2s; }
.faq-question:hover { background: var(--green-100); }
.faq-question::after { content: '+'; font-size: 1.2rem; color: var(--green-500); transition: transform 0.2s; }
.faq-item.open .faq-question::after { content: '\2212'; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.3s ease, padding 0.3s ease; padding: 0 20px; color: var(--slate-500); font-size: 0.85rem; }
.faq-item.open .faq-answer { max-height: 300px; padding: 0 20px 16px; }

/* Resources */
.resources-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; margin-top: 24px; }
.resource-card { background: var(--white); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); transition: all 0.2s; border-left: 3px solid var(--green-500); }
.resource-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.resource-card h3 { font-size: 0.95rem; color: var(--green-700); margin-bottom: 6px; }
.resource-card h3 a { color: var(--green-500); text-decoration: underline; }
.resource-card p { font-size: 0.8rem; color: var(--slate-500); }

/* Route combinations */
.combo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}
.combo-card {
  padding: 22px;
  border: 1px solid rgba(18, 53, 36, 0.08);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow);
}
.combo-card h3 {
  margin-bottom: 10px;
  color: var(--green-900);
  font-size: 1rem;
}
.combo-route {
  margin-bottom: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  background: var(--green-100);
  color: var(--green-700);
  font-size: 0.82rem;
  font-weight: 700;
  line-height: 1.6;
}
.combo-card p {
  color: var(--slate-500);
  font-size: 0.88rem;
}
.combo-table-wrap {
  margin-top: 22px;
  overflow-x: auto;
}
.combo-table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
  border: 1px solid rgba(18, 53, 36, 0.08);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.combo-table th,
.combo-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--slate-100);
  text-align: left;
  font-size: 0.86rem;
}
.combo-table th {
  background: var(--green-100);
  color: var(--green-700);
  font-weight: 800;
}
.combo-table td {
  color: var(--slate-500);
}

/* Related trails */
.trails-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin-top: 24px; }
.trail-card { background: var(--white); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); border-left: 4px solid var(--green-500); }
.trail-card .trail-name { font-size: 0.95rem; font-weight: 700; color: var(--green-700); }
.trail-card .trail-length { font-size: 0.72rem; color: var(--slate-300); margin-top: 4px; }
.trail-card .trail-desc { font-size: 0.82rem; color: var(--slate-500); margin-top: 8px; }
.trail-card.highlight { border-left-color: var(--earth); background: linear-gradient(135deg, var(--white), #fef3c7); }
.trail-card.highlight .trail-name { color: var(--earth); }

/* People */
.people-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 24px; margin-top: 24px; }
.people-card { background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; transition: all 0.2s; }
.people-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.people-card-top { padding: 24px 24px 12px; display: flex; align-items: center; gap: 16px; }
.people-avatar { width: 56px; height: 56px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.6rem; flex-shrink: 0; }
.people-avatar.p1 { background: linear-gradient(135deg, #dbeafe, #60a5fa); }
.people-avatar.p2 { background: linear-gradient(135deg, #d1fae5, #34d399); }
.people-avatar.p3 { background: linear-gradient(135deg, #fef3c7, #f59e0b); }
.people-card h3 { font-size: 1.05rem; color: var(--slate-900); }
.people-card .people-role { font-size: 0.72rem; color: var(--slate-300); margin-top: 2px; }
.people-card-body { padding: 0 24px 14px; }
.people-card-body p { font-size: 0.82rem; color: var(--slate-500); line-height: 1.6; }
.people-card-footer { padding: 12px 24px; background: var(--green-100); font-size: 0.8rem; color: var(--green-700); border-top: 1px solid var(--green-300); display: flex; align-items: start; gap: 8px; }
.people-card-footer::before { content: "\2728"; font-size: 0.85rem; }

/* Trail materials */
.materials-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 18px; margin-top: 24px; }
.material-card {
  padding: 22px;
  border: 1px solid rgba(18, 53, 36, 0.08);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow);
  transition: all 0.2s;
}
.material-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.material-type {
  display: inline-flex;
  margin-bottom: 10px;
  padding: 3px 9px;
  border-radius: var(--radius-sm);
  background: var(--green-100);
  color: var(--green-700);
  font-size: 0.72rem;
  font-weight: 800;
}
.material-card h3 {
  margin-bottom: 8px;
  color: var(--green-900);
  font-size: 1rem;
  line-height: 1.45;
}
.material-card p {
  color: var(--slate-500);
  font-size: 0.84rem;
  line-height: 1.7;
}

/* About */
.about-content { max-width: 750px; margin: 0 auto; }
.about-content p { font-size: 0.95rem; color: var(--slate-500); margin-bottom: 24px; }
.about-content h3 { font-size: 1.15rem; color: var(--green-700); margin-bottom: 8px; margin-top: 32px; }
.disclaimer-box { background: #fef3c7; border-radius: var(--radius); padding: 20px; margin-top: 32px; border: 1px solid #fde68a; }
.disclaimer-box h3 { margin-top: 0 !important; color: #92400e; }
.disclaimer-box p { font-size: 0.85rem; color: #92400e; margin-bottom: 0; }

/* Footer */
.footer { background: var(--green-900); color: rgba(255,255,255,0.5); text-align: center; padding: 32px 24px; font-size: 0.82rem; }
.footer p + p { margin-top: 4px; }
.footer a { color: rgba(255,255,255,0.65); }
.footer a:hover { color: var(--white); }

/* Back to top */
.back-top { position: fixed; bottom: 28px; right: 28px; z-index: 50; width: 44px; height: 44px; border-radius: 50%; background: var(--green-500); color: var(--white); border: none; cursor: pointer; font-size: 1.2rem; box-shadow: var(--shadow-lg); transition: all 0.2s; display: none; align-items: center; justify-content: center; }
.back-top:hover { background: var(--green-700); transform: translateY(-2px); }
.back-top.visible { display: flex; }

/* Overview stats (original - keep compatibility) */
.stats-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; margin-bottom: 48px; }
.stat-card { background: var(--white); border-radius: var(--radius); padding: 20px 12px; text-align: center; box-shadow: var(--shadow); border: 1px solid rgba(0,0,0,0.04); }
.stat-card .stat-value { font-size: 1.25rem; font-weight: 700; color: var(--green-700); }
.stat-card .stat-label { font-size: 0.78rem; color: var(--slate-500); margin-top: 4px; }

/* Mobile overlay */
.mobile-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.3); z-index: 998; opacity: 0; visibility: hidden; transition: all 0.3s ease; }
.mobile-overlay.open { opacity: 1; visibility: visible; }

/* Responsive additions */
@media (max-width: 768px) {
  .transport-grid { grid-template-columns: 1fr; }
  .map-container { height: 320px; }
  .elevation-stats { grid-template-columns: 1fr; }
  .resources-grid { grid-template-columns: 1fr; }
  .people-grid { grid-template-columns: 1fr; }
  .materials-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 480px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .map-container { height: 260px; }
}

/* ===== PROFESSIONAL REDESIGN OVERRIDES ===== */
:root {
  --green-950: #0b2418;
  --green-900: #123524;
  --green-700: #1f6247;
  --green-500: #2f8a63;
  --green-300: #8fc7aa;
  --green-100: #e8f3ed;
  --earth: #a77a52;
  --earth-dark: #7c5738;
  --earth-light: #c39a72;
  --sky: #1c7280;
  --slate-900: #14201d;
  --slate-700: #33423d;
  --slate-500: #66756f;
  --slate-300: #aebbb6;
  --slate-100: #f4f7f5;
  --shadow: 0 1px 2px rgba(12, 36, 26, 0.06), 0 8px 20px rgba(12, 36, 26, 0.05);
  --shadow-lg: 0 18px 42px rgba(12, 36, 26, 0.12);
  --radius: 8px;
  --radius-sm: 6px;
}

html, body { max-width: 100%; overflow-x: hidden; }
body { background: #f7faf8; color: var(--slate-700); }

.header {
  background: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid rgba(18, 53, 36, 0.08);
}
.header-inner { height: 66px; }
.logo { letter-spacing: 0.02em; color: var(--green-700); }
.nav { gap: 4px; }
.nav > a,
.dropdown-content a {
  color: var(--slate-500);
  font-weight: 600;
}
.nav > a.nav-active,
.nav > a:hover,
.dropdown-content a:hover {
  color: var(--green-700);
}
.lang-btn { border-color: #d7dfdb; background: #fff; }
.lang-btn.active { background: var(--green-700); border-color: var(--green-700); }
.mobile-toggle { position: relative; z-index: 1002; }

.hero {
  min-height: calc(100vh - 66px);
  background:
    linear-gradient(90deg, rgba(8, 31, 22, 0.82), rgba(10, 46, 54, 0.58)),
    linear-gradient(0deg, rgba(8, 31, 22, 0.18), rgba(8, 31, 22, 0.18)),
    url("../images/hero-kunpeng.jpg") center/cover no-repeat,
    linear-gradient(135deg, #123524 0%, #1f6247 52%, #1c7280 100%);
  animation: none;
  justify-content: flex-start;
  text-align: left;
  padding: 112px 24px 96px;
}
.hero::before {
  background: linear-gradient(180deg, transparent 0%, rgba(8, 31, 22, 0.12) 55%, rgba(8, 31, 22, 0.45) 100%);
}
.hero-content {
  max-width: var(--max-w);
  width: 100%;
  margin: 0 auto;
}
.hero-kicker {
  display: inline-flex;
  max-width: min(720px, 100%);
  margin-bottom: 18px;
  padding: 7px 12px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.84);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  backdrop-filter: blur(10px);
}
.hero h1 {
  max-width: 720px;
  font-size: clamp(3rem, 8vw, 6.5rem);
  letter-spacing: 0.08em;
  margin-bottom: 12px;
  text-shadow: 0 18px 48px rgba(0, 0, 0, 0.28);
}
.hero .subtitle {
  color: rgba(255, 255, 255, 0.9);
  font-size: clamp(1rem, 2vw, 1.35rem);
  letter-spacing: 0.12em;
}
.hero p {
  max-width: 660px;
  margin-left: 0;
  margin-right: 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: 1.05rem;
}
.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(120px, 1fr));
  max-width: 620px;
  gap: 12px;
  margin: 0 0 30px;
}
.hero-metrics div {
  padding: 16px 18px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(12px);
}
.hero-metrics strong {
  display: block;
  color: #fff;
  font-size: 1.35rem;
  line-height: 1.2;
}
.hero-metrics span {
  display: block;
  margin-top: 3px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.78rem;
}
.hero-cta {
  border-radius: var(--radius);
  background: var(--earth);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.18);
}
.hero-cta:hover { background: var(--earth-dark); }

.section { padding: 84px 24px; }
.section:nth-child(even) { background: #fff; }
.section-title {
  font-size: clamp(1.55rem, 3vw, 2.2rem);
  letter-spacing: 0.02em;
}
.section-subtitle { max-width: 760px; color: var(--slate-500); }
.overview-section .hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.overview-section .stat-card,
.transport-card,
.prep-card,
.highlight-card,
.download-card,
.elevation-stat,
.faq-item,
.resource-card,
.trail-card,
.people-card,
.yk-card {
  border: 1px solid rgba(18, 53, 36, 0.08);
  box-shadow: var(--shadow);
}
.overview-section .stat-card {
  padding: 22px 18px;
  text-align: left;
}
.overview-section .stat-card .stat-value {
  color: var(--green-900);
  line-height: 1.35;
}
.overview-section .stat-card .stat-label {
  color: var(--slate-500);
  font-weight: 600;
  letter-spacing: 0.03em;
}
.overview-stats .stat-label {
  margin-top: 0;
  margin-bottom: 8px;
  color: var(--green-700);
  font-size: 0.76rem;
  text-transform: none;
}
.overview-stats .stat-value {
  overflow-wrap: anywhere;
}
.features-list li {
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(31, 98, 71, 0.12);
  color: var(--slate-700);
}
.features-list li::before { color: var(--green-700); }

.filter-bar {
  padding: 14px;
  border: 1px solid rgba(18, 53, 36, 0.08);
  border-radius: var(--radius);
  background: #fff;
}
.filter-select { min-height: 40px; }
.region-header {
  border-left: 4px solid var(--green-700);
  background: #fff !important;
}
.region-header.west { border-left-color: #1d70a2; }
.region-header.central { border-left-color: var(--green-700); }
.region-header.east { border-left-color: #9a6a2f; }
.region-header.peninsula { border-left-color: #1c7280; }
.region-header.peninsula h3,
.region-header.east h3,
.region-header.central h3,
.region-header.west h3 { color: var(--green-900); }
.sections-grid { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
.section-card {
  border-color: rgba(18, 53, 36, 0.08);
  box-shadow: var(--shadow);
}
.section-card:hover { border-color: rgba(31, 98, 71, 0.28); }
.section-card-header { padding-top: 18px; }
.region-tag {
  left: 0;
  right: auto;
  border-radius: 0 0 var(--radius-sm) 0;
  background: var(--green-100) !important;
  color: var(--green-700) !important;
}
.badge { border-radius: var(--radius-sm); }
.section-card-footer { background: #f8faf9; }

.map-container,
.gallery-item {
  border: 1px solid rgba(18, 53, 36, 0.1);
}
.gallery-grid {
  columns: 3;
  column-gap: 18px;
}
.gallery-item {
  background: linear-gradient(135deg, #123524, #1c7280);
  color: #fff;
  margin-bottom: 18px;
}
.gallery-item img {
  width: 100%;
  height: auto;
  object-fit: contain;
  transition: transform 0.35s ease;
}
.gallery-item:hover img { transform: scale(1.04); }
.gallery-item::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 44%;
  background: linear-gradient(180deg, rgba(8, 31, 22, 0), rgba(8, 31, 22, 0.68));
  pointer-events: none;
}
.gallery-note { background: #fff; border: 1px solid rgba(18, 53, 36, 0.08); }

.download-icon,
.highlight-icon,
.people-avatar {
  filter: saturate(0.85);
}
.footer { background: var(--green-950); }
.back-top { background: var(--green-700); }

@media (max-width: 900px) {
  .header-inner { height: 64px; }
  .mobile-toggle {
    display: flex !important;
    position: fixed;
    top: 14px;
    right: 18px;
    width: 38px;
    height: 38px;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: var(--green-700);
    border: 1px solid var(--green-700);
    color: #fff;
    box-shadow: 0 8px 22px rgba(12, 36, 26, 0.18);
  }
  .nav {
    top: 0;
    padding-top: 76px;
  }
  .nav a { white-space: normal; }
  .hero {
    min-height: calc(100vh - 64px);
    text-align: left;
    padding: 88px 20px 72px;
  }
  .hero h1 {
    font-size: clamp(2.6rem, 14vw, 4.2rem);
    letter-spacing: 0.05em;
  }
  .hero p,
  .hero .subtitle,
  .hero-kicker {
    overflow-wrap: anywhere;
  }
  .hero-metrics {
    grid-template-columns: 1fr;
    max-width: 360px;
  }
  .overview-section .hero-stats,
  .gallery-grid {
    columns: 2;
  }
  .region-header {
    align-items: flex-start;
    flex-direction: column;
  }
  .filter-bar {
    align-items: stretch;
    flex-direction: column;
  }
  .filter-select { width: 100%; }
}

@media (max-width: 480px) {
  .gallery-grid { columns: 1; }
  .hero { padding: 72px 18px 64px; }
  .hero p { font-size: 0.95rem; }
  .hero-metrics div { padding: 13px 14px; }
  .sections-grid { grid-template-columns: minmax(0, 1fr); }
  .section-meta { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .section-card-footnote { flex-direction: column; gap: 4px; }
  .section-card-footnote span:last-child { text-align: left; }
  .section-card-header,
  .section-card-body,
  .section-card-footer {
    padding-left: 16px;
    padding-right: 16px;
  }
}

/* ===== SECTION DETAIL PAGE ===== */
.detail-page {
  background: #f7faf8;
}
.detail-hero {
  margin-top: 66px;
  padding: 88px 24px 56px;
  background:
    linear-gradient(90deg, rgba(8, 31, 22, 0.9), rgba(14, 58, 53, 0.78)),
    url("../images/hero-kunpeng.jpg") center/cover no-repeat,
    linear-gradient(135deg, var(--green-950), var(--green-700));
  color: #fff;
}
.detail-back {
  display: inline-flex;
  margin-bottom: 28px;
  padding: 8px 12px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: var(--radius-sm);
  color: rgba(255, 255, 255, 0.86);
  font-size: 0.86rem;
  font-weight: 700;
}
.detail-back:hover { color: #fff; }
.detail-kicker {
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.detail-hero h1 {
  max-width: 900px;
  margin-top: 12px;
  color: #fff;
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 1.15;
  letter-spacing: 0.01em;
}
.detail-hero p {
  max-width: 760px;
  margin-top: 18px;
  color: rgba(255, 255, 255, 0.84);
  font-size: 1.02rem;
}
.detail-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 30px;
  max-width: 900px;
}
.detail-metrics div {
  padding: 16px 18px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(12px);
}
.detail-metrics span {
  display: block;
  color: rgba(255, 255, 255, 0.66);
  font-size: 0.76rem;
  font-weight: 700;
}
.detail-metrics strong {
  display: block;
  margin-top: 4px;
  color: #fff;
  font-size: 1.1rem;
  line-height: 1.35;
}
.detail-content-section {
  padding-top: 56px;
}
.detail-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 24px;
  align-items: start;
}
.detail-main,
.detail-side {
  display: grid;
  gap: 18px;
}
.detail-panel {
  padding: 24px;
  border: 1px solid rgba(18, 53, 36, 0.08);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow);
}
.detail-panel h2 {
  margin-bottom: 12px;
  color: var(--green-900);
  font-size: 1.08rem;
}
.detail-panel p {
  color: var(--slate-500);
  font-size: 0.94rem;
}
.detail-list {
  display: grid;
  gap: 10px;
  list-style: none;
}
.detail-list li {
  position: relative;
  padding-left: 22px;
  color: var(--slate-500);
  font-size: 0.92rem;
}
.detail-list li::before {
  content: "";
  position: absolute;
  top: 0.72em;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green-500);
}
.detail-dl {
  display: grid;
  gap: 12px;
}
.detail-dl div {
  padding-bottom: 12px;
  border-bottom: 1px solid var(--slate-100);
}
.detail-dl div:last-child {
  padding-bottom: 0;
  border-bottom: none;
}
.detail-dl dt {
  color: var(--slate-500);
  font-size: 0.76rem;
  font-weight: 700;
}
.detail-dl dd {
  margin-top: 3px;
  color: var(--slate-900);
  font-size: 0.94rem;
  font-weight: 700;
}
.detail-guide-full {
  overflow: hidden;
}
.detail-guide-full > h2 {
  margin-bottom: 18px;
}
.guide-block {
  padding: 18px 0;
  border-top: 1px solid var(--slate-100);
}
.guide-block:first-child {
  padding-top: 0;
  border-top: none;
}
.guide-block:last-child {
  padding-bottom: 0;
}
.guide-block h3 {
  margin-bottom: 10px;
  color: var(--green-700);
  font-size: 0.98rem;
}
.guide-block ul {
  display: grid;
  gap: 8px;
  list-style: none;
}
.guide-block li {
  position: relative;
  padding-left: 18px;
  color: var(--slate-500);
  font-size: 0.91rem;
  line-height: 1.75;
}
.guide-block li::before {
  content: "";
  position: absolute;
  top: 0.78em;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--earth);
}
.guide-table-wrap {
  width: 100%;
  overflow-x: auto;
}
.guide-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  border: 1px solid var(--slate-100);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.guide-table th,
.guide-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--slate-100);
  text-align: left;
  font-size: 0.86rem;
  vertical-align: top;
}
.guide-table th {
  background: var(--green-100);
  color: var(--green-700);
  font-weight: 800;
}
.guide-table td {
  color: var(--slate-500);
}

@media (max-width: 900px) {
  .detail-hero {
    margin-top: 64px;
    padding: 72px 20px 42px;
  }
  .detail-metrics,
  .detail-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .detail-hero h1 { font-size: 2rem; }
  .detail-panel { padding: 20px; }
}

/* ===== OFFICIAL TRAIL THEME 20260618 ===== */
:root {
  --green-950: #071d14;
  --green-900: #113826;
  --green-700: #226646;
  --green-500: #32865e;
  --green-300: #94c7aa;
  --green-100: #edf5f0;
  --sky: #176b7a;
  --sky-soft: #e7f2f3;
  --earth: #a1724a;
  --earth-dark: #7a5234;
  --earth-soft: #f5eee7;
  --slate-900: #14211d;
  --slate-700: #334640;
  --slate-500: #687970;
  --slate-300: #afbbb5;
  --slate-100: #f5f7f5;
  --white: #fff;
  --shadow: 0 1px 2px rgba(9, 31, 21, 0.05), 0 10px 28px rgba(9, 31, 21, 0.06);
  --shadow-lg: 0 18px 48px rgba(9, 31, 21, 0.14);
  --radius: 8px;
  --radius-sm: 6px;
}

body {
  background:
    linear-gradient(180deg, #f7faf8 0%, #f2f6f3 42%, #f7faf8 100%);
  color: var(--slate-700);
}

.header {
  background: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid rgba(17, 56, 38, 0.09);
  backdrop-filter: blur(18px);
}
.header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 8px 28px rgba(9, 31, 21, 0.08);
}
.header-inner {
  height: 68px;
  max-width: 1280px;
}
.logo {
  color: var(--green-900);
  font-size: 1.24rem;
  letter-spacing: 0.06em;
}
.nav { gap: 6px; }
.nav > a,
.nav-more,
.dropdown-content a {
  color: var(--slate-700);
  font-weight: 650;
}
.nav > a,
.nav-more {
  padding: 9px 13px;
  border-radius: var(--radius-sm);
}
.nav > a:hover,
.nav > a.nav-active,
.nav-dropdown:hover .nav-more {
  background: var(--green-100);
  color: var(--green-900);
}
.dropdown-content {
  border: 1px solid rgba(17, 56, 38, 0.08);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}
.lang-btn {
  min-height: 32px;
  border-color: rgba(17, 56, 38, 0.16);
  color: var(--slate-700);
}
.lang-btn.active {
  background: var(--green-900);
  border-color: var(--green-900);
}

.hero,
.detail-hero {
  background:
    linear-gradient(90deg, rgba(7, 29, 20, 0.9), rgba(9, 46, 52, 0.66)),
    linear-gradient(180deg, rgba(7, 29, 20, 0.08), rgba(7, 29, 20, 0.6)),
    var(--trail-hero-image, linear-gradient(135deg, #103724 0%, #176b7a 100%));
  background-size: auto, auto, cover;
  background-position: center;
}
.hero {
  min-height: min(760px, calc(100vh - 68px));
  align-items: flex-end;
  padding: 118px 24px 82px;
}
.hero::before {
  background:
    radial-gradient(circle at 78% 20%, rgba(255, 255, 255, 0.12), transparent 28%),
    linear-gradient(180deg, transparent 0%, rgba(7, 29, 20, 0.24) 100%);
}
.hero-content {
  max-width: 1280px;
}
.hero-kicker {
  border-color: rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.11);
  color: rgba(255, 255, 255, 0.88);
  letter-spacing: 0.06em;
}
.hero h1 {
  font-size: clamp(3.4rem, 8.5vw, 7.2rem);
  letter-spacing: 0.1em;
  line-height: 0.98;
}
.hero .subtitle {
  color: rgba(255, 255, 255, 0.92);
  font-size: clamp(1rem, 2vw, 1.32rem);
}
.hero p {
  color: rgba(255, 255, 255, 0.86);
  font-size: 1.04rem;
}
.hero-metrics {
  max-width: 680px;
  gap: 10px;
}
.hero-metrics div,
.detail-metrics div {
  border-color: rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.12);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}
.hero-metrics strong {
  font-size: clamp(1.12rem, 2vw, 1.48rem);
}
.hero-cta,
.download-btn,
.gallery-more-btn {
  border-radius: var(--radius-sm);
  background: var(--earth);
  color: #fff;
}
.hero-cta:hover,
.download-btn:hover,
.gallery-more-btn:hover {
  background: var(--earth-dark);
  color: #fff;
}

.section {
  padding: 88px 24px;
}
.section:nth-child(even) {
  background: #fff;
}
.section-inner {
  max-width: 1280px;
}
.section-title {
  color: var(--green-900);
  font-size: clamp(1.72rem, 3vw, 2.34rem);
  letter-spacing: 0;
}
.section-title::after {
  content: "";
  display: block;
  width: 48px;
  height: 3px;
  margin: 14px auto 0;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--green-700), var(--sky));
}
.section-subtitle {
  max-width: 820px;
  color: var(--slate-500);
}

.overview-section {
  background:
    linear-gradient(180deg, #fff 0%, #f7faf8 100%) !important;
}
.overview-section .hero-stats {
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
}
.overview-section .stat-card,
.transport-card,
.prep-card,
.highlight-card,
.download-card,
.elevation-stat,
.faq-item,
.resource-card,
.trail-card,
.people-card,
.yk-card,
.combo-card,
.material-card,
.detail-panel {
  border: 1px solid rgba(17, 56, 38, 0.1);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: var(--shadow);
}
.overview-section .stat-card {
  min-height: 116px;
  padding: 20px 16px;
}
.overview-section .stat-card .stat-label {
  color: var(--green-700);
  font-size: 0.74rem;
  font-weight: 800;
}
.overview-section .stat-card .stat-value {
  color: var(--slate-900);
  font-size: clamp(1rem, 1.7vw, 1.26rem);
}
.features-list {
  max-width: 960px;
  margin-left: auto;
  margin-right: auto;
}
.features-list li {
  border-color: rgba(34, 102, 70, 0.14);
  background: #fff;
  box-shadow: 0 6px 18px rgba(9, 31, 21, 0.04);
}

.filter-bar {
  max-width: 820px;
  margin: 0 auto 34px;
  padding: 16px;
  border-color: rgba(17, 56, 38, 0.12);
  box-shadow: var(--shadow);
}
.filter-bar label {
  color: var(--green-900);
  font-size: 0.82rem;
  font-weight: 800;
}
.filter-select {
  border-color: rgba(17, 56, 38, 0.18);
  border-radius: var(--radius-sm);
}
.region-group {
  margin-top: 28px;
}
.region-header {
  min-height: 76px;
  padding: 18px 20px;
  border: 1px solid rgba(17, 56, 38, 0.1);
  border-left: 5px solid var(--green-700);
  border-radius: var(--radius);
  background: #fff !important;
  box-shadow: var(--shadow);
}
.region-header.west { border-left-color: var(--sky); }
.region-header.central { border-left-color: var(--green-700); }
.region-header.east { border-left-color: var(--earth); }
.region-header.peninsula { border-left-color: #2b7f86; }
.region-header h3 {
  color: var(--green-900) !important;
  font-size: 1.08rem;
}
.region-header .region-desc {
  color: var(--slate-500);
}
.region-badge {
  background: var(--green-100);
  color: var(--green-900);
}
.sections-grid {
  grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
  gap: 18px;
}
.section-card {
  border: 1px solid rgba(17, 56, 38, 0.1);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow);
}
.section-card:hover {
  border-color: rgba(34, 102, 70, 0.32);
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}
.section-card-header {
  align-items: flex-start;
  padding: 20px 20px 12px;
}
.section-card-header h3 {
  color: var(--slate-900);
  font-size: 1rem;
}
.badge {
  border-radius: var(--radius-sm);
  font-weight: 800;
}
.badge-1 { background: #e7f6ef; color: #17613f; }
.badge-2 { background: #f7efd9; color: #7a5622; }
.badge-3 { background: #f6e5dd; color: #8a422b; }
.badge-4 { background: #f0dede; color: #8a2f2f; }
.section-card-body {
  padding: 0 20px 20px;
}
.section-meta {
  gap: 8px;
}
.section-meta span {
  min-height: 64px;
  border: 1px solid rgba(17, 56, 38, 0.08);
  background: #f8fbf9;
}
.section-meta strong {
  color: var(--green-900);
  font-size: 0.9rem;
}
.section-meta em {
  color: var(--slate-500);
}
.section-card-body p {
  color: var(--slate-700);
}
.section-card-footnote {
  border-top: 1px solid var(--green-100);
  color: var(--slate-500);
}

.map-container {
  height: min(70vh, 620px);
  border: 1px solid rgba(17, 56, 38, 0.14);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
}
#routeMap {
  min-height: 100%;
}
.leaflet-container {
  font-family: var(--font-cn);
}
.elevation-chart {
  border: 1px solid rgba(17, 56, 38, 0.1);
}

.gallery-grid {
  columns: 3 260px;
  column-gap: 18px;
}
.gallery-item {
  border: 1px solid rgba(17, 56, 38, 0.12);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.gallery-item:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}
.gallery-item img {
  background: linear-gradient(135deg, var(--green-900), var(--sky));
}
.gallery-caption {
  padding: 42px 16px 14px;
  background: linear-gradient(180deg, rgba(7, 29, 20, 0), rgba(7, 29, 20, 0.82));
}
.gallery-caption strong {
  font-size: 0.94rem;
}
.gallery-caption span {
  color: rgba(255, 255, 255, 0.82);
}
.gallery-more-btn {
  min-height: 42px;
  padding: 10px 28px;
  border: 1px solid rgba(122, 82, 52, 0.18);
}

.transport-grid,
.prep-grid,
.highlights-grid,
.download-grid,
.elevation-stats,
.resources-grid,
.people-grid,
.materials-grid,
.combo-grid,
.trails-grid,
.yk-grid {
  gap: 18px;
}
.highlight-card,
.download-card,
.transport-card,
.prep-card,
.resource-card,
.material-card,
.combo-card {
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.highlight-card:hover,
.download-card:hover,
.transport-card:hover,
.prep-card:hover,
.resource-card:hover,
.material-card:hover,
.combo-card:hover {
  border-color: rgba(34, 102, 70, 0.24);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}
.highlight-icon,
.download-icon,
.people-avatar {
  filter: saturate(0.75);
}
.type-natural,
.people-card-footer,
.material-type {
  background: var(--green-100);
  color: var(--green-900);
}
.type-cultural {
  background: var(--earth-soft);
  color: var(--earth-dark);
}
.yk-note,
.disclaimer-box {
  background: var(--earth-soft);
  border-color: rgba(161, 114, 74, 0.26);
  color: var(--earth-dark);
}
.footer {
  background:
    linear-gradient(180deg, var(--green-900), var(--green-950));
}

.detail-page {
  background: #f7faf8;
}
.detail-hero {
  margin-top: 68px;
  padding: 100px 24px 66px;
}
.detail-back {
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.1);
}
.detail-kicker {
  color: rgba(255, 255, 255, 0.78);
}
.detail-hero h1 {
  max-width: 980px;
  font-size: clamp(2.2rem, 5vw, 4.4rem);
}
.detail-hero p {
  max-width: 840px;
}
.detail-metrics {
  max-width: 980px;
}
.detail-content-section {
  padding-top: 62px;
}
.detail-layout {
  grid-template-columns: minmax(0, 1fr) 380px;
  gap: 24px;
}
.detail-panel {
  padding: 26px;
}
.detail-panel h2 {
  color: var(--green-900);
  font-size: 1.08rem;
}
.detail-panel p,
.detail-list li,
.guide-block li,
.guide-table td {
  color: var(--slate-700);
}
.detail-dl dt {
  color: var(--green-700);
}
.detail-dl dd {
  color: var(--slate-900);
}
.guide-table {
  border-color: rgba(17, 56, 38, 0.1);
}
.guide-table th {
  background: var(--green-100);
  color: var(--green-900);
}

@media (max-width: 1100px) {
  .nav > a,
  .nav-more {
    padding-left: 9px;
    padding-right: 9px;
    font-size: 0.84rem;
  }
  .overview-section .hero-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .detail-layout {
    grid-template-columns: minmax(0, 1fr) 330px;
  }
}

@media (max-width: 900px) {
  .header-inner {
    height: 64px;
  }
  .mobile-toggle {
    display: flex !important;
    position: fixed !important;
    top: 13px !important;
    right: 18px !important;
    left: auto !important;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: var(--green-900);
    color: #fff;
    box-shadow: var(--shadow);
    z-index: 1002;
  }
  .nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: auto;
    width: min(76vw, 292px);
    height: 100vh;
    height: 100dvh;
    max-height: 100vh;
    max-height: 100dvh;
    padding: 76px 14px 22px;
    gap: 6px;
    overflow-y: auto;
    background: var(--white);
    box-shadow: -8px 0 26px rgba(9, 31, 21, 0.12);
    transform: translateX(100%);
    transition: transform 0.3s ease;
    z-index: 1001;
  }
  .nav.open {
    right: 0;
    transform: translateX(0);
  }
  .nav > a,
  .nav-more,
  .dropdown-content a {
    display: flex;
    width: 100%;
    min-height: 42px;
    padding: 9px 12px;
    align-items: center;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--green-900);
    font-size: 0.9rem;
    font-weight: 650;
    line-height: 1.35;
  }
  .nav > a:hover,
  .dropdown-content a:hover,
  .nav > a.nav-active {
    background: var(--green-100);
    color: var(--green-900);
    font-weight: 650;
  }
  .nav-dropdown {
    width: 100%;
  }
  .nav-dropdown .nav-more {
    display: none;
  }
  .dropdown-content {
    position: static;
    display: block;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    margin-top: 0;
    padding: 0;
    border: 0;
    background: transparent;
  }
  .nav-dropdown:hover .dropdown-content,
  .nav-dropdown:focus-within .dropdown-content {
    display: block;
  }
  .lang-switch {
    display: flex;
    width: 100%;
    gap: 8px;
    margin-left: 0;
    margin-top: 12px;
    padding-top: 14px;
    border-top: 1px solid var(--slate-100);
  }
  .lang-btn {
    flex: 1;
    min-width: 0;
  }
  .hero {
    min-height: auto;
    padding: 92px 20px 70px;
  }
  .hero h1 {
    font-size: clamp(2.8rem, 15vw, 4.4rem);
    letter-spacing: 0.06em;
  }
  .hero-metrics {
    grid-template-columns: 1fr;
    max-width: 420px;
  }
  .overview-section .hero-stats,
  .detail-metrics,
  .detail-layout {
    grid-template-columns: 1fr;
  }
  .section {
    padding: 70px 20px;
  }
  .section-title {
    font-size: clamp(1.55rem, 8vw, 2rem);
  }
  .filter-bar,
  .region-header {
    align-items: stretch;
    flex-direction: column;
  }
  .filter-select {
    width: 100%;
  }
  .map-container {
    height: 420px;
  }
  .gallery-grid {
    columns: 2 220px;
  }
  .detail-hero {
    margin-top: 64px;
    padding: 82px 20px 48px;
  }
}

@media (max-width: 520px) {
  body,
  .header,
  .hero,
  .detail-hero,
  .section,
  .footer {
    width: 100%;
    max-width: 100vw;
  }
  .header-inner {
    width: 100%;
    padding: 0 18px;
  }
  .logo {
    font-size: 1.12rem;
  }
  .section {
    padding: 58px 18px;
  }
  .section-inner {
    width: min(100%, 354px);
    max-width: 354px;
    margin-left: 0;
    margin-right: 0;
  }
  .hero {
    padding: 80px 18px 58px;
  }
  .hero-content,
  .detail-hero .section-inner {
    width: min(100%, 354px);
    max-width: 354px;
    margin-left: 0;
    margin-right: 0;
    min-width: 0;
  }
  .hero h1,
  .detail-hero h1,
  .detail-hero p,
  .hero p {
    max-width: 100%;
    overflow-wrap: anywhere;
    word-break: break-all;
    line-break: anywhere;
  }
  .detail-hero h1 {
    font-size: clamp(1.8rem, 10vw, 2.6rem);
    line-height: 1.18;
  }
  .hero-kicker {
    font-size: 0.76rem;
    line-height: 1.5;
  }
  .hero .subtitle {
    letter-spacing: 0.04em;
  }
  .hero p {
    font-size: 0.94rem;
    display: block;
    width: min(100%, 354px);
    max-width: 354px;
    white-space: normal;
    hyphens: auto;
  }
  .hero-metrics div,
  .detail-metrics div {
    min-width: 0;
    padding: 14px;
  }
  .hero-metrics,
  .detail-metrics {
    width: min(100%, 354px);
    max-width: 354px;
    min-width: 0;
  }
  .hero-metrics strong,
  .detail-metrics strong {
    overflow-wrap: anywhere;
  }
  .overview-section .stat-card {
    min-height: auto;
  }
  .sections-grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .section-card-header,
  .section-card-body {
    padding-left: 16px;
    padding-right: 16px;
  }
  .section-meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .section-meta span {
    min-height: 58px;
  }
  .section-card-footnote {
    flex-direction: column;
    gap: 4px;
  }
  .section-card-footnote span:last-child {
    text-align: left;
  }
  .map-container {
    height: 330px;
  }
  .gallery-grid {
    columns: 1;
  }
  .detail-panel {
    padding: 20px;
  }
  .guide-table {
    min-width: 520px;
  }
}