:root {
  --paper: #f4f1e8;
  --ink: #1f3529;
  --muted: #5a6b61;
  --brand: #2a8f62;
  --brand-strong: #1f6b49;
  --accent: #e28d33;
  --card: #fffdf8;
  --line: #d9d2c2;
  --easy: #3cae61;
  --moderate: #d6962c;
  --hard: #bb4b35;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", sans-serif;
  background:
    radial-gradient(circle at 10% 10%, rgba(42, 143, 98, 0.12), transparent 40%),
    radial-gradient(circle at 90% 90%, rgba(226, 141, 51, 0.12), transparent 35%),
    var(--paper);
  color: var(--ink);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1200;
  backdrop-filter: blur(8px);
  background: rgba(244, 241, 232, 0.92);
  border-bottom: 1px solid rgba(31, 53, 41, 0.1);
}

.nav-wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  font-family: "ZCOOL XiaoWei", serif;
  font-size: 1.35rem;
  color: var(--ink);
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
}

.nav-links a {
  text-decoration: none;
  color: var(--ink);
  padding: 8px 10px;
  border-radius: 999px;
  transition: 0.2s ease;
}

.nav-links a:hover {
  background: rgba(42, 143, 98, 0.12);
}

.lang-switch {
  border: 1px solid var(--line);
  border-radius: 999px;
  overflow: hidden;
  display: inline-flex;
}

.lang-btn {
  border: 0;
  padding: 6px 12px;
  background: transparent;
  cursor: pointer;
  color: var(--ink);
}

.lang-btn.active {
  background: var(--brand);
  color: #fff;
}

.hero {
  max-width: 1200px;
  margin: 0 auto;
  padding: 52px 16px 24px;
  display: grid;
  gap: 14px;
}

.hero h1 {
  margin: 0;
  line-height: 1.2;
  font-size: clamp(1.9rem, 4vw, 3.2rem);
  font-family: "ZCOOL XiaoWei", serif;
}

.hero p {
  margin: 0;
  max-width: 880px;
  color: var(--muted);
}

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

.chip {
  font-size: 0.9rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.7);
}

.main-grid {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px 50px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 10px 20px rgba(31, 53, 41, 0.06);
}

.info-panel,
.disclaimer-panel {
  padding: 16px;
}

.join-panel {
  padding: 16px;
}

.join-panel h2 {
  margin: 0 0 8px;
}

.join-panel > p {
  margin: 0 0 10px;
  color: var(--muted);
}

.join-steps {
  margin: 0 0 12px;
  padding-left: 20px;
}

.join-steps li {
  margin-bottom: 7px;
  line-height: 1.6;
}

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

.qr-slot {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px;
  background: #fff;
  display: flex;
  flex-direction: column;
}

.qr-placeholder {
  width: 100%;
  aspect-ratio: 1 / 1;
  min-height: 0;
  border: 2px dashed rgba(31, 53, 41, 0.28);
  border-radius: 10px;
  display: grid;
  place-items: center;
  color: var(--muted);
  font-size: 0.95rem;
  background: linear-gradient(135deg, rgba(42, 143, 98, 0.05), rgba(226, 141, 51, 0.05));
}

.qr-placeholder.has-image {
  padding: 0;
  border-style: solid;
  background: #fff;
}

.qr-placeholder.has-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 8px;
  display: block;
}

.qr-caption {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.info-panel h2,
.disclaimer-panel h2 {
  margin: 0 0 10px;
}

.info-panel p,
.disclaimer-panel p {
  margin: 0 0 10px;
  color: var(--muted);
}

.info-list,
.disclaimer-list {
  margin: 8px 0 10px;
  padding-left: 20px;
  color: var(--ink);
}

.info-list li,
.disclaimer-list li {
  margin-bottom: 8px;
  line-height: 1.6;
}

.disclaimer-panel {
  border: 1px solid rgba(187, 75, 53, 0.35);
  background:
    linear-gradient(0deg, rgba(187, 75, 53, 0.06), rgba(187, 75, 53, 0.06)),
    var(--card);
}

.disclaimer-note {
  font-size: 0.9rem;
}

.disclaimer-link {
  display: inline-block;
  color: var(--brand-strong);
  text-decoration: underline;
  font-weight: 600;
}

.disclaimer-link:hover {
  color: #164f36;
}

.waiver-check {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  border: 1px dashed var(--line);
  border-radius: 10px;
  background: #fff;
  padding: 10px;
  color: var(--ink);
}

.waiver-check input {
  margin-top: 3px;
}

.filter-panel {
  padding: 14px;
}

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

.filter-group label {
  display: block;
  font-size: 0.82rem;
  color: var(--muted);
  margin-bottom: 6px;
}

.filter-group select,
.filter-group input,
.filter-group button {
  width: 100%;
  min-height: 38px;
  border-radius: 10px;
  border: 1px solid var(--line);
  padding: 8px 10px;
  font: inherit;
}

.filter-actions {
  display: flex;
  gap: 8px;
  align-items: end;
}

.btn-brand {
  background: var(--brand);
  color: #fff;
  border: 0;
  cursor: pointer;
}

.btn-ghost {
  background: #fff;
  color: var(--ink);
  cursor: pointer;
}

.stats {
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.92rem;
}

.content-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 20px;
}

.cards-wrap {
  display: grid;
  gap: 14px;
  max-height: 930px;
  overflow: auto;
  padding-right: 4px;
}

.catalog-headline {
  margin-bottom: 10px;
}

.catalog-headline h2 {
  margin: 0;
  font-size: 1.2rem;
}

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

.activity-card.highlight {
  outline: 2px solid var(--accent);
  box-shadow: 0 0 0 4px rgba(226, 141, 51, 0.2);
}

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

.badge {
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.78rem;
  border: 1px solid var(--line);
  background: #fff;
}

.badge.easy { color: var(--easy); border-color: rgba(60, 174, 97, 0.35); }
.badge.moderate { color: var(--moderate); border-color: rgba(214, 150, 44, 0.35); }
.badge.hard { color: var(--hard); border-color: rgba(187, 75, 53, 0.35); }

.card-title {
  margin: 0;
  font-size: 1.2rem;
}

.card-sub {
  margin: 0;
  font-size: 0.92rem;
  color: var(--muted);
}

.card-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  font-size: 0.92rem;
}

.card-meta div {
  border: 1px dashed var(--line);
  border-radius: 8px;
  padding: 8px;
}

.card-actions {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.card-actions button,
.card-actions a {
  text-align: center;
  text-decoration: none;
  border-radius: 10px;
  border: 1px solid var(--line);
  min-height: 38px;
  line-height: 36px;
  background: #fff;
  color: var(--ink);
  cursor: pointer;
}

.card-actions .primary {
  background: var(--brand);
  color: #fff;
  border-color: var(--brand);
}

.map-panel {
  padding: 12px;
}

.public-account-panel {
  padding: 32px;
  display: block;
}

.public-account-copy {
  max-width: 860px;
}

.public-account-copy h2 {
  margin: 0 0 8px;
}

.public-account-copy p {
  margin: 0 0 10px;
  color: var(--muted);
  line-height: 1.65;
}

.public-account-tip {
  margin-bottom: 12px;
  font-size: 0.92rem;
}

.public-account-btn {
  display: inline-block;
  margin-top: 4px;
  text-decoration: none;
  color: #fff;
  background: var(--brand);
  border: 1px solid var(--brand);
  border-radius: 999px;
  padding: 8px 14px;
}

.public-account-btn:hover {
  background: var(--brand-strong);
  border-color: var(--brand-strong);
}

.public-account-qr {
  display: block;
  margin-top: 10px;
  width: 50vw;
  max-width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  padding: 6px;
}

.public-account-qr img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
}

.faq-preview-panel {
  padding: 16px;
}

.faq-preview-panel h2 {
  margin: 0 0 8px;
}

.faq-preview-panel > p {
  margin: 0 0 10px;
  color: var(--muted);
}

.faq-preview-list {
  margin: 0 0 12px;
  padding-left: 20px;
}

.faq-preview-list li {
  margin-bottom: 7px;
  line-height: 1.6;
  color: var(--ink);
}

.faq-preview-btn {
  display: inline-block;
  text-decoration: none;
  color: #fff;
  background: var(--brand);
  border: 1px solid var(--brand);
  border-radius: 999px;
  padding: 8px 14px;
}

.faq-preview-btn:hover {
  background: var(--brand-strong);
  border-color: var(--brand-strong);
}

.team-panel {
  padding: 16px;
}

.team-panel h2 {
  margin: 0 0 8px;
}

.team-panel > p {
  margin: 0 0 12px;
  color: var(--muted);
}

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

.team-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  padding: 12px;
  box-shadow: 0 6px 14px rgba(31, 53, 41, 0.06);
}

.team-avatar {
  width: 82px;
  height: 82px;
  border-radius: 50%;
  border: 2px solid rgba(31, 53, 41, 0.12);
  margin-bottom: 8px;
  object-fit: contain;
  object-position: center;
  background: #f3f6f4;
  padding: 2px;
}

.team-card h3 {
  margin: 0 0 5px;
  font-size: 1.05rem;
}

.team-role {
  margin: 0 0 7px;
  color: var(--brand-strong);
  font-size: 0.9rem;
  font-weight: 600;
}

.team-bio {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

.partner-panel {
  padding: 16px;
}

.partner-panel h2 {
  margin: 0 0 8px;
}

.partner-panel > p {
  margin: 0 0 12px;
  color: var(--muted);
}

.friendly-org-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.friendly-org-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  padding: 12px;
}

.friendly-org-card h3 {
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.45;
}

.friendly-org-note {
  margin-top: 10px;
  font-size: 0.86rem;
}

#activityMap {
  width: 100%;
  height: 560px;
  border-radius: 12px;
  border: 1px solid var(--line);
}

#elevationChart {
  margin-top: 10px;
  min-height: 160px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #fff;
}

.legend {
  margin-top: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.86rem;
  color: var(--muted);
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.swatch {
  width: 20px;
  height: 4px;
  border-radius: 2px;
}

.swatch.easy { background: var(--easy); }
.swatch.moderate { background: var(--moderate); }
.swatch.hard { background: var(--hard); }

dialog.signup-dialog {
  width: min(560px, 92vw);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0;
}

.signup-header {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.signup-body {
  padding: 12px 14px 16px;
  display: grid;
  gap: 10px;
}

.signup-body label {
  font-size: 0.9rem;
  color: var(--muted);
}

.signup-body input,
.signup-body textarea {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font: inherit;
}

.signup-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

.toast {
  position: fixed;
  right: 16px;
  bottom: 16px;
  background: #16241d;
  color: #fff;
  padding: 10px 14px;
  border-radius: 10px;
  opacity: 0;
  transform: translateY(8px);
  transition: 0.2s ease;
  pointer-events: none;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.site-footer {
  margin-top: 22px;
  border-top: 1px solid rgba(31, 53, 41, 0.16);
  background: rgba(255, 255, 255, 0.52);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 16px 16px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 8px;
}

.footer-links a {
  text-decoration: none;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 5px 10px;
  font-size: 0.9rem;
}

.footer-links a:hover {
  background: rgba(42, 143, 98, 0.1);
}

.footer-links a.active {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
}

.footer-copyright {
  margin: 0;
  font-size: 0.8rem;
  color: var(--muted);
}

@media (max-width: 1080px) {
  .filter-grid {
    grid-template-columns: 1fr 1fr;
  }

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

  #activityMap {
    height: 440px;
  }

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

  .public-account-panel {
    grid-template-columns: 1fr;
  }

  .friendly-org-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .nav-wrap {
    align-items: flex-start;
    flex-direction: column;
  }

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

  .card-meta,
  .card-actions {
    grid-template-columns: 1fr;
  }

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

  .friendly-org-grid {
    grid-template-columns: 1fr;
  }

  .qr-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  #activityMap {
    height: 340px;
  }

  .footer-inner {
    padding: 12px 16px 14px;
  }
}