:root {
  --bg: #efe9dc;
  --panel: #f7f3ea;
  --panel-2: #fffdf8;
  --line: #ddd3bf;
  --text: #2a2622;
  --muted: #7d7466;
  --accent: #b3332b;      /* seal red */
  --accent-soft: #f3dcd6;
  --ink: #2a2622;
  --wall: #e4ddcc;
  --radius: 10px;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; height: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 "Jost", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
}
a { color: var(--accent); }

.topbar {
  display: flex; align-items: center; gap: 18px;
  padding: 12px 24px; border-bottom: 1px solid var(--line); background: var(--panel);
}
.brand { display: flex; align-items: baseline; gap: 10px; white-space: nowrap; }
.brand-zh { font-family: "Ma Shan Zheng", "KaiTi", serif; font-size: 28px; color: var(--ink); line-height: 1; }
.brand-en { font-family: "Cormorant Garamond", serif; font-size: 22px; font-weight: 600; letter-spacing: 0.02em; color: var(--accent); }
.tagline { margin: 0; color: var(--muted); flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-family: "Noto Serif SC", "Cormorant Garamond", serif; }
.gh-link {
  color: var(--accent); text-decoration: none; font-size: 13px; white-space: nowrap;
  border: 1px solid var(--line); border-radius: 999px; padding: 5px 12px; background: var(--panel-2);
}
.gh-link:hover { border-color: var(--accent); }
.lang { display: flex; flex-shrink: 0; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; background: var(--panel-2); }
.lang button { background: transparent; color: var(--muted); border: 0; padding: 6px 14px; cursor: pointer; font: inherit; white-space: nowrap; }
.lang button.active { background: var(--ink); color: #fbf7ee; }

.layout {
  display: grid;
  grid-template-columns: 380px 1fr;
  grid-template-areas: "panel stage";
  height: calc(100% - 59px);
}
.layout > * { min-width: 0; }
.panel { grid-area: panel; background: var(--panel); border-right: 1px solid var(--line); overflow-y: auto; padding: 4px 20px 28px; }
.stage {
  grid-area: stage; position: relative; overflow: hidden;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 28px; background:
    radial-gradient(ellipse at 50% 35%, rgba(255,255,255,0.55), transparent 60%),
    var(--wall);
}
.frame { position: relative; max-width: 100%; max-height: 100%; display: flex; }
#art {
  display: block; max-width: 100%; max-height: calc(100vh - 59px - 56px); width: auto; height: auto;
  box-shadow: 0 14px 40px rgba(60, 45, 20, 0.22), 0 2px 6px rgba(60, 45, 20, 0.15);
  background: #ebe3d1;
}
.busy {
  position: absolute; left: 50%; top: 14px; transform: translateX(-50%);
  display: flex; align-items: center; gap: 8px;
  background: rgba(42, 38, 34, 0.82); color: #fbf7ee; border-radius: 999px; padding: 6px 14px; font-size: 13px;
}
.busy .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); animation: pulse 1s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { opacity: 0.3; } 50% { opacity: 1; } }
.stage-note { margin: 12px 0 0; color: var(--accent); font-size: 13px; text-align: center; max-width: 560px; }

.panel section { padding: 14px 0 16px; border-bottom: 1px solid var(--line); }
.panel section:last-child { border-bottom: 0; }
.panel h2 {
  font-family: "Noto Serif SC", "Cormorant Garamond", serif;
  font-size: 15px; font-weight: 600; letter-spacing: 0.08em; color: var(--ink); margin: 0 0 10px;
}
label { display: block; margin-bottom: 10px; }
label > span { display: block; color: var(--muted); font-size: 12px; margin-bottom: 4px; }
input[type="text"], select {
  width: 100%; background: var(--panel-2); color: var(--text);
  border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; font: inherit;
}
input:focus, select:focus, button:focus-visible { outline: 2px solid color-mix(in srgb, var(--accent) 55%, transparent); outline-offset: 1px; }
.note { margin: -2px 0 10px; color: var(--muted); font-size: 12px; }
.sublabel { margin: 12px 0 6px; color: var(--muted); font-size: 12px; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.row.tight { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 18px; margin-top: 10px; }
.check { display: flex; align-items: center; gap: 8px; margin: 0; cursor: pointer; }
.check > span { display: inline; color: var(--text); font-size: 13px; margin: 0; }
.check input { accent-color: var(--accent); width: 15px; height: 15px; }

.slider { margin-bottom: 6px; }
.slider > span { display: flex; justify-content: space-between; margin-bottom: 0; }
.slider b { font-weight: 400; color: var(--text); font-size: 13px; }
.slider em { font-style: normal; color: var(--muted); font-size: 12px; }
input[type="range"] { width: 100%; accent-color: var(--ink); margin: 2px 0 4px; }

.seg { display: grid; gap: 6px; }
.seg-2 { grid-template-columns: repeat(2, 1fr); }
.seg-3 { grid-template-columns: repeat(3, 1fr); }
.seg-4 { grid-template-columns: repeat(4, 1fr); }
.seg-5 { grid-template-columns: repeat(5, 1fr); }
.seg button {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px;
  background: var(--panel-2); color: var(--text); border: 1px solid var(--line); border-radius: 8px;
  padding: 7px 4px; font: inherit; font-size: 13px; cursor: pointer; line-height: 1.2; text-align: center;
}
.seg button:hover { border-color: color-mix(in srgb, var(--ink) 40%, var(--line)); }
.seg button.active { border-color: var(--ink); background: var(--ink); color: #fbf7ee; }
.sw { width: 28px; height: 18px; border-radius: 3px; display: block; box-shadow: inset 0 0 0 1px rgba(0,0,0,0.08); }
.sw-ink { background: linear-gradient(170deg, #ece4d0 30%, #8d8780 60%, #3a3632); }
.sw-qinglu { background: linear-gradient(170deg, #e5d6b5 25%, #2f6a86 45%, #3f8f74 65%, #b08052); }
.sw-qianjiang { background: linear-gradient(170deg, #e9decb 30%, #a77a5a 55%, #5d6e7e 80%); }
.sw-snow { background: linear-gradient(170deg, #9a9893 30%, #f6f3ee 50%, #4a4a52 90%); }

button.primary, button.secondary, button.ghost { font: inherit; border-radius: 8px; cursor: pointer; padding: 9px 14px; }
button.primary { width: 100%; background: var(--accent); color: #fff8f2; border: 0; font-weight: 500; margin-top: 8px; }
button.secondary { background: var(--panel-2); color: var(--ink); border: 1px solid var(--ink); }
button.primary:disabled, button.secondary:disabled { opacity: 0.55; cursor: progress; }
button.ghost { background: transparent; color: var(--accent); border: 1px solid var(--line); padding: 5px 10px; font-size: 12px; }
button.ghost.wide { width: 100%; margin-top: 8px; padding: 8px 10px; font-size: 13px; }
.export-pdf { margin-top: 8px; grid-template-columns: 96px 1fr; }

.search { position: relative; }
.menu {
  position: absolute; z-index: 10; left: 0; right: 0; top: calc(100% + 4px);
  margin: 0; padding: 4px; list-style: none; background: var(--panel-2);
  border: 1px solid var(--line); border-radius: 8px; box-shadow: 0 10px 30px rgba(60,45,20,0.15);
  max-height: 300px; overflow-y: auto;
}
.menu li { padding: 7px 10px; border-radius: 6px; cursor: pointer; display: flex; justify-content: space-between; gap: 10px; }
.menu li small { color: var(--muted); white-space: nowrap; }
.menu li.active, .menu li:hover { background: var(--accent-soft); }
.menu li.empty { color: var(--muted); cursor: default; background: none; }

.place-row { display: grid; grid-template-columns: 112px 1fr; gap: 12px; align-items: start; margin: 4px 0 10px; }
#terrain { width: 112px; height: 112px; border-radius: 8px; cursor: crosshair; box-shadow: inset 0 0 0 1px var(--line); background: #ddd5c3; }
.place-name { font-family: "Noto Serif SC", "Cormorant Garamond", serif; font-size: 17px; font-weight: 600; line-height: 1.3; }
.place-meta { color: var(--muted); font-size: 12px; margin: 2px 0 6px; }
.place-info .note { margin: 0 0 8px; }

.gallery { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; }
.gallery button {
  position: relative; padding: 0; border: 1px solid var(--line); border-radius: 6px; overflow: hidden; cursor: pointer;
  background: #e9e1cf; aspect-ratio: 3 / 5; font: inherit;
}
.gallery img { width: 100%; height: 100%; object-fit: cover; display: block; }
.gallery span {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 14px 3px 3px; font-size: 11px; line-height: 1.2;
  color: #fbf7ee; background: linear-gradient(transparent, rgba(30, 26, 22, 0.75)); text-align: center;
}
.gallery button.active { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent); }

.poem-src { margin-top: -6px; }
.about p { color: var(--muted); font-size: 12px; margin: 0 0 8px; }
.about .credits { font-size: 11px; line-height: 1.5; }

@media (max-width: 860px) {
  .topbar { flex-wrap: wrap; gap: 8px 12px; padding: 10px 16px; }
  .tagline { order: 3; flex-basis: 100%; white-space: normal; }
  .layout { display: block; height: auto; }
  .stage { padding: 16px; min-height: 60vh; }
  #art { max-height: 72vh; }
  .panel { border-right: 0; border-top: 1px solid var(--line); padding: 4px 16px 32px; }
  .gallery { grid-template-columns: repeat(4, 1fr); }
}