:root {
  color-scheme: light;
  --ink: #24342f;
  --ink-soft: #56665f;
  --moss: #6f8f4e;
  --moss-dark: #3f633c;
  --water: #65a9bf;
  --water-deep: #377f96;
  --brick: #b94e3d;
  --mist: #f5f7f2;
  --paper: rgba(250, 252, 248, 0.92);
  --line: rgba(36, 52, 47, 0.15);
  --shadow: 0 16px 44px rgba(28, 52, 41, 0.2);
  font-family: "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html, body { width: 100%; height: 100%; }

body {
  margin: 0;
  min-width: 320px;
  overflow: hidden;
  color: var(--ink);
  background: #fff;
}

button, audio, video { font: inherit; }
button { touch-action: manipulation; }

button:focus-visible, [tabindex]:focus-visible {
  outline: 3px solid rgba(101, 169, 191, 0.74);
  outline-offset: 3px;
}

.app-shell { position: relative; width: 100%; height: 100%; min-height: 100dvh; }

.topbar {
  position: fixed;
  z-index: 20;
  top: max(14px, env(safe-area-inset-top));
  left: max(14px, env(safe-area-inset-left));
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: calc(100% - 28px - env(safe-area-inset-right));
  pointer-events: none;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 62px;
  padding: 9px 16px 9px 10px;
  border: 1px solid rgba(255,255,255,0.72);
  border-radius: 18px;
  background: rgba(245, 247, 242, 0.88);
  box-shadow: 0 10px 32px rgba(28,52,41,0.18);
  backdrop-filter: blur(14px) saturate(1.12);
  pointer-events: auto;
}

.brand-mark {
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
  border-radius: 14px 14px 14px 4px;
  object-fit: cover;
  background: white;
  box-shadow: inset 0 0 0 1px rgba(30,79,144,0.12);
}

.brand-lockup p {
  margin: 0 0 1px;
  color: var(--moss-dark);
  font-size: 0.67rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}
.brand-lockup h1 {
  margin: 0;
  font-family: STKaiti, KaiTi, "Microsoft YaHei", sans-serif;
  font-size: 1.4rem;
  line-height: 1.1;
  letter-spacing: 0.08em;
}

.topbar-action {
  border: 1px solid rgba(255,255,255,0.72);
  border-radius: 999px;
  padding: 0.72rem 1rem;
  color: var(--ink);
  background: var(--paper);
  box-shadow: 0 10px 28px rgba(28,52,41,0.16);
  backdrop-filter: blur(12px);
  cursor: pointer;
  pointer-events: auto;
}
.topbar-action[aria-pressed="true"] { color: white; background: var(--brick); }

.map-stage { width: 100%; height: 100%; }

.site-record {
  position: absolute;
  z-index: 8;
  left: 50%;
  bottom: 8px;
  transform: translateX(-50%);
  margin: 0;
  white-space: nowrap;
  pointer-events: auto;
}
.site-record a {
  color: rgba(36,52,47,0.58);
  font-size: 64px;
  line-height: 1.2;
  text-decoration: none;
  text-shadow: 0 1px 5px rgba(255,255,255,0.92);
  touch-action: manipulation;
}
.map-tiles-active .site-record {
  position: relative;
  left: auto;
  bottom: auto;
  transform: none;
}
.map-tiles-active .site-record a { font-size: 0.68rem; }
.site-record a:hover { color: var(--moss-dark); text-decoration: underline; }
.site-record a:focus-visible {
  outline: 3px solid rgba(101,169,191,0.74);
  outline-offset: 3px;
  border-radius: 4px;
}

.annotator-panel {
  position: fixed;
  z-index: 30;
  right: max(16px, env(safe-area-inset-right));
  bottom: max(16px, env(safe-area-inset-bottom));
  width: min(430px, calc(100% - 32px));
  max-height: min(620px, calc(100dvh - 110px));
  overflow: auto;
  padding: 20px;
  border: 1px solid rgba(255,255,255,0.74);
  border-radius: 22px;
  background: rgba(245,247,242,0.96);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}
.annotator-heading { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; }
.annotator-heading p { margin: 0 0 2px; color: var(--brick); font-size: 0.7rem; font-weight: 800; letter-spacing: 0.12em; }
.annotator-heading h2 { margin: 0; font-size: 1.3rem; }
.annotator-heading button { width: 34px; height: 34px; padding: 0; border: 0; border-radius: 50%; color: white; background: var(--moss-dark); font-size: 1.4rem; cursor: pointer; }
.annotator-panel > p { color: var(--ink-soft); font-size: 0.86rem; line-height: 1.65; }

.spot-selector { display: grid; gap: 6px; margin-top: 14px; color: var(--ink-soft); font-size: 0.75rem; font-weight: 700; }
.spot-selector select { width: 100%; min-height: 44px; padding: 0 12px; border: 1px solid rgba(63,99,60,0.24); border-radius: 12px; color: var(--ink); background: white; font: inherit; }
.coordinate-readout, .annotation-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.coordinate-readout label { min-width: 100px; padding: 0.7rem 0.85rem; border-radius: 12px; background: #e2ebdf; font-variant-numeric: tabular-nums; }
.coordinate-readout button, .annotation-actions button {
  border: 0;
  border-radius: 999px;
  padding: 0.68rem 0.9rem;
  color: white;
  background: var(--moss-dark);
  cursor: pointer;
}
.coordinate-readout button:disabled { cursor: not-allowed; opacity: 0.45; }
.coordinate-list { display: grid; gap: 6px; margin-top: 12px; }
.coordinate-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 10px; width: 100%; padding: 9px 10px; border: 1px solid transparent; border-radius: 11px; color: var(--ink); background: rgba(255,255,255,0.62); text-align: left; cursor: pointer; }
.coordinate-row span { overflow: hidden; font-size: 0.76rem; text-overflow: ellipsis; white-space: nowrap; }
.coordinate-row code { color: var(--ink-soft); font-size: 0.72rem; font-variant-numeric: tabular-nums; }
.coordinate-row.is-active { border-color: rgba(185,78,61,0.42); background: rgba(185,78,61,0.08); }
.status-message { display: block; min-height: 1.4em; margin-top: 12px; color: var(--water-deep); font-size: 0.82rem; }

@media (max-width: 640px) {
  .topbar { top: max(10px, env(safe-area-inset-top)); left: max(10px, env(safe-area-inset-left)); }
  .brand-lockup { min-height: 54px; padding: 7px 12px 7px 7px; border-radius: 16px; }
  .brand-mark { width: 40px; height: 40px; border-radius: 12px 12px 12px 4px; }
  .brand-lockup p { font-size: 0.6rem; }
  .brand-lockup h1 { font-size: 1.17rem; }
  .topbar-action { padding: 0.62rem 0.76rem; font-size: 0.78rem; }
  .annotator-panel { right: 10px; bottom: calc(10px + env(safe-area-inset-bottom)); width: calc(100% - 20px); max-height: 58dvh; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}