:root {
  color-scheme: dark;
  --bg: #17130f;
  --panel: rgba(47, 35, 25, 0.88);
  --panel-2: rgba(31, 25, 20, 0.92);
  --paper: #f1d6aa;
  --paper-dark: #b98f58;
  --ink: #f6ead8;
  --muted: #c4ae8e;
  --red: #9f342e;
  --green: #536748;
  --gold: #d9a441;
  --shadow: rgba(0, 0, 0, 0.42);
  --line: rgba(241, 214, 170, 0.2);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 20% 10%, rgba(107, 93, 59, 0.32), transparent 30%),
    linear-gradient(135deg, #0c100c 0%, #1d1711 44%, #2c1c14 100%);
  color: var(--ink);
  overflow-x: hidden;
}

button,
input,
select {
  font: inherit;
}

.hidden {
  display: none !important;
}

.ambient {
  position: fixed;
  inset: -8vmax;
  pointer-events: none;
  background:
    radial-gradient(circle at 75% 15%, rgba(217, 164, 65, 0.16), transparent 20%),
    repeating-linear-gradient(105deg, transparent 0 18px, rgba(255, 255, 255, 0.018) 18px 19px);
  filter: blur(0.2px);
  animation: drift 22s linear infinite;
}

@keyframes drift {
  from { transform: translateX(-1.4rem); }
  to { transform: translateX(1.4rem); }
}

.game-shell {
  width: min(1440px, 100%);
  margin: 0 auto;
  padding: 24px;
  position: relative;
}

.start-screen {
  min-height: calc(100vh - 48px);
  display: grid;
  place-items: center;
}

.title-card {
  width: min(820px, 100%);
  padding: clamp(28px, 5vw, 58px);
  border: 1px solid rgba(241, 214, 170, 0.28);
  border-radius: 30px;
  background:
    linear-gradient(160deg, rgba(43, 32, 23, 0.92), rgba(21, 18, 15, 0.92)),
    url("scene-door.svg") center/cover;
  box-shadow: 0 24px 80px var(--shadow);
  position: relative;
  overflow: hidden;
}

.title-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(17, 13, 10, 0.9), rgba(17, 13, 10, 0.38));
}

.title-card > * {
  position: relative;
}

.eyebrow,
.kicker {
  margin: 0 0 8px;
  color: var(--gold);
  letter-spacing: 0.16em;
  font-size: 0.78rem;
}

h1 {
  font-size: clamp(3rem, 9vw, 7rem);
  margin: 0;
  letter-spacing: 0.08em;
  text-shadow: 0 8px 28px rgba(0, 0, 0, 0.45);
}

.subtitle {
  font-size: clamp(1rem, 2vw, 1.35rem);
  color: var(--paper);
  margin: 12px 0 28px;
}

.start-copy {
  line-height: 2;
  color: var(--muted);
  max-width: 700px;
}

.start-actions,
.status-cluster,
.inline-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}

.primary-btn,
.ghost-btn,
.small-btn,
.chip,
.relic-btn,
.photo-btn,
.choice-btn {
  border: 0;
  cursor: pointer;
  border-radius: 999px;
  transition: transform 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}

.primary-btn {
  background: linear-gradient(135deg, #b73b32, #e2a645);
  color: #fff9ed;
  padding: 13px 28px;
  font-weight: 700;
  box-shadow: 0 10px 26px rgba(141, 45, 35, 0.35);
}

.ghost-btn,
.small-btn {
  background: rgba(241, 214, 170, 0.08);
  color: var(--paper);
  border: 1px solid var(--line);
  padding: 11px 20px;
}

.small-btn {
  padding: 8px 13px;
  font-size: 0.86rem;
}

.small-btn.muted {
  color: var(--muted);
}

button:hover {
  transform: translateY(-1px);
}

.notice {
  color: rgba(241, 214, 170, 0.7);
  font-size: 0.86rem;
  margin-top: 20px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  margin-bottom: 18px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(23, 19, 15, 0.68);
  backdrop-filter: blur(10px);
}

.topbar h2 {
  margin: 0;
  font-size: clamp(1.6rem, 3vw, 2.45rem);
}

.badge {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(83, 103, 72, 0.35);
  border: 1px solid rgba(134, 157, 113, 0.38);
  color: #dce8ca;
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(360px, 0.7fr);
  gap: 18px;
}

.scene-card,
.side-panel > section {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 24px;
  box-shadow: 0 22px 50px rgba(0, 0, 0, 0.26);
}

.scene-card {
  padding: 16px;
  min-height: 680px;
}

.scene-figure {
  margin: 0;
  overflow: hidden;
  border-radius: 18px;
  background: #120f0d;
  border: 1px solid rgba(241, 214, 170, 0.16);
  position: relative;
}

.scene-figure img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.scene-figure figcaption {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 14px;
  padding: 10px 14px;
  border-radius: 14px;
  color: #f7ead6;
  background: linear-gradient(90deg, rgba(0, 0, 0, 0.64), rgba(0, 0, 0, 0.18));
  font-size: 0.92rem;
}

.hotspots {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px;
  margin-top: 14px;
}

.chip,
.choice-btn,
.relic-btn,
.photo-btn {
  padding: 10px 12px;
  color: var(--ink);
  background: rgba(241, 214, 170, 0.09);
  border: 1px solid rgba(241, 214, 170, 0.18);
  text-align: left;
}

.chip.done,
.choice-btn.selected,
.relic-btn.selected,
.photo-btn.selected {
  background: rgba(217, 164, 65, 0.2);
  border-color: rgba(217, 164, 65, 0.58);
}

.side-panel {
  display: grid;
  gap: 14px;
  align-content: start;
}

.side-panel > section {
  padding: 16px;
}

.side-panel h3 {
  margin: 0 0 10px;
  color: var(--paper);
  letter-spacing: 0.08em;
}

.story-log {
  display: grid;
  gap: 10px;
  max-height: 220px;
  overflow: auto;
  padding-right: 4px;
}

.story-entry {
  padding: 10px 12px;
  border-left: 3px solid rgba(217, 164, 65, 0.65);
  background: rgba(0, 0, 0, 0.18);
  border-radius: 10px;
  color: var(--muted);
  line-height: 1.75;
}

.puzzle-panel {
  line-height: 1.8;
  color: var(--muted);
}

.puzzle-panel input,
.puzzle-panel select {
  width: 100%;
  margin: 8px 0 10px;
  padding: 11px 13px;
  border-radius: 12px;
  border: 1px solid rgba(241, 214, 170, 0.25);
  background: rgba(0, 0, 0, 0.24);
  color: var(--ink);
  outline: none;
}

.puzzle-panel input:focus,
.puzzle-panel select:focus {
  border-color: var(--gold);
}

.paper-note,
.artifact-card {
  background: linear-gradient(145deg, rgba(241, 214, 170, 0.16), rgba(92, 63, 37, 0.12));
  border: 1px solid rgba(241, 214, 170, 0.2);
  border-radius: 16px;
  padding: 12px;
  margin: 10px 0;
}

.visual-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 10px;
  margin: 10px 0;
}

.scrap,
.receipt,
.letter-match {
  min-height: 92px;
  border: 1px dashed rgba(241, 214, 170, 0.35);
  border-radius: 14px;
  padding: 10px;
  background: rgba(242, 217, 176, 0.1);
  color: #f6e3bf;
}

.receipt {
  cursor: pointer;
}

.receipt small,
.scrap small {
  color: var(--gold);
  display: block;
}

.inventory {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(98px, 1fr));
  gap: 10px;
}

.item {
  min-height: 72px;
  border-radius: 14px;
  border: 1px solid rgba(241, 214, 170, 0.16);
  background: rgba(0, 0, 0, 0.18);
  padding: 8px;
  display: grid;
  place-items: center;
  text-align: center;
  color: var(--paper);
  font-size: 0.82rem;
}

.item.locked {
  color: rgba(196, 174, 142, 0.48);
  filter: grayscale(1);
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translate(-50%, 20px);
  opacity: 0;
  z-index: 9000;
  padding: 12px 18px;
  border-radius: 999px;
  background: rgba(21, 16, 12, 0.94);
  border: 1px solid rgba(217, 164, 65, 0.45);
  color: var(--paper);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
  transition: all 0.25s ease;
}

.toast.show {
  transform: translate(-50%, 0);
  opacity: 1;
}

.ending-screen {
  min-height: calc(100vh - 48px);
}

.ending-card {
  margin: 0 auto;
  width: min(880px, 100%);
  padding: clamp(22px, 4vw, 46px);
  border-radius: 28px;
  border: 1px solid rgba(241, 214, 170, 0.28);
  background: linear-gradient(150deg, rgba(35, 25, 18, 0.94), rgba(16, 15, 14, 0.96));
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.38);
}

.ending-card h2 {
  margin-top: 0;
  color: var(--paper);
  font-size: clamp(2rem, 5vw, 3.5rem);
}

.ending-card p {
  color: var(--muted);
  line-height: 2;
}

.tribute-credits {
  position: fixed;
  inset: 0;
  z-index: 8000;
  overflow: hidden;
  background: #050505;
  color: #eee;
}

.film-grain {
  position: absolute;
  inset: 0;
  opacity: 0.2;
  background-image:
    radial-gradient(circle, #fff 0 0.6px, transparent 0.8px),
    linear-gradient(rgba(255,255,255,0.08) 50%, transparent 50%);
  background-size: 4px 4px, 100% 6px;
  pointer-events: none;
}

.credits-roll {
  width: min(920px, 92vw);
  margin: 0 auto;
  padding: 100vh 0 22vh;
  animation: roll 68s linear forwards;
}

.credits-roll h2 {
  font-size: clamp(2rem, 6vw, 4.4rem);
  text-align: center;
  margin: 0 0 24px;
  letter-spacing: 0.08em;
}

.credits-lead,
.credits-final,
.credits-source {
  text-align: center;
  font-size: 1.2rem;
  line-height: 2;
  color: #ddd;
}

.credits-source {
  font-size: 0.92rem;
  color: #aaa;
}

.history-card {
  margin: 54px 0;
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 24px;
  align-items: center;
}

.history-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  filter: grayscale(1) contrast(1.08);
  border: 1px solid rgba(255, 255, 255, 0.24);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.45);
}

.history-card h3 {
  font-size: 1.45rem;
  margin: 0 0 8px;
}

.history-card p {
  color: #d6d6d6;
  line-height: 2;
  margin: 0;
}

.credits-btn {
  display: block;
  margin: 60px auto 0;
  color: #efefef;
}

@keyframes roll {
  from { transform: translateY(0); }
  to { transform: translateY(-100%); }
}

@media (prefers-reduced-motion: reduce) {
  .credits-roll {
    animation: none;
    padding-top: 8vh;
    height: 100vh;
    overflow: auto;
  }
}

@media (max-width: 980px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .scene-card {
    min-height: auto;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 640px) {
  .game-shell {
    padding: 12px;
  }

  .history-card {
    grid-template-columns: 1fr;
  }
}