/* ============================================================
   WorldHub · 全局样式
   画面本体全部在 Canvas 里；CSS 只负责「舞台装裱」与 HUD 文本
   ============================================================ */

:root {
  --ink: #08060f;
  --ink-2: #12101f;
  --paper: #f4e8d6;
  --paper-dim: #cdbfae;
  --amber: #f0a76e;
  --amber-soft: #ffd9a8;
  --line: rgba(244, 232, 214, 0.14);

  --serif: "Songti SC", "STSong", "Source Han Serif SC", "Noto Serif CJK SC", "SimSun", serif;
  --sans: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  min-height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(10px, 2.2vh, 34px) clamp(10px, 2vw, 34px);
  overflow: hidden;
  background:
    radial-gradient(110% 80% at 50% -10%, #241c3c 0%, #120f22 42%, #08060f 78%, #050409 100%);
  color: var(--paper);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* 页面极淡的纸纹，避免大面积纯色发闷 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.16;
  background-image:
    radial-gradient(rgba(255, 230, 200, 0.10) 1px, transparent 1px),
    radial-gradient(rgba(255, 230, 200, 0.06) 1px, transparent 1px);
  background-size: 39px 39px, 17px 17px;
  background-position: 0 0, 9px 13px;
  mix-blend-mode: overlay;
}

.frame {
  width: 100%;
  max-width: 1560px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

/* ---------- 舞台：16:9 自适应，永远完整可见 ---------- */
.stage {
  position: relative;
  width: min(100%, calc((100dvh - 110px) * 16 / 9));
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: 12px;
  background: #0b0817;
  container-type: inline-size;
  box-shadow:
    0 0 0 1px rgba(255, 214, 170, 0.12),
    0 0 0 6px rgba(10, 8, 18, 0.85),
    0 0 0 7px rgba(255, 214, 170, 0.06),
    0 34px 90px -28px rgba(0, 0, 0, 0.95),
    0 0 90px -30px rgba(240, 167, 110, 0.35);
}

.stage canvas {
  display: block;
  width: 100%;
  height: 100%;
  /* 画布内容按 CSS 尺寸缩放，双线性由 drawImage 之外的原生缩放处理 */
  touch-action: none;
}

/* ---------- HUD ---------- */
.hud {
  position: absolute;
  inset: 0;
  pointer-events: none;
  user-select: none;
}

.hud-title {
  position: absolute;
  left: 2.6cqw;
  top: 2.4cqw;
  padding-left: 1.1cqw;
  border-left: 2px solid rgba(240, 167, 110, 0.55);
  transition: opacity 160ms ease;
}

.hud-title h1 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 2.15cqw;
  line-height: 1.15;
  letter-spacing: 0.08em;
  color: #fdf3e4;
  text-shadow: 0 2px 14px rgba(6, 4, 12, 0.85), 0 0 30px rgba(240, 167, 110, 0.18);
}

.hud-title h1 span {
  font-family: var(--sans);
  font-weight: 400;
  font-size: 0.52em;
  letter-spacing: 0.24em;
  color: rgba(255, 217, 168, 0.78);
  margin-left: 0.35em;
  vertical-align: 0.28em;
}

.hud-title p {
  margin: 0.45cqw 0 0;
  font-size: 0.85cqw;
  letter-spacing: 0.22em;
  color: rgba(244, 232, 214, 0.42);
}

.hud-keys {
  position: absolute;
  right: 2.6cqw;
  top: 2.6cqw;
  display: flex;
  align-items: center;
  gap: 0.9cqw;
  font-size: 0.82cqw;
  letter-spacing: 0.1em;
  color: rgba(244, 232, 214, 0.5);
  transition: opacity 160ms ease;
}

.hud-keys .sep {
  width: 1px;
  height: 0.9cqw;
  background: rgba(244, 232, 214, 0.22);
}

.hud-keys kbd {
  display: inline-block;
  min-width: 1.5cqw;
  padding: 0.14cqw 0.42cqw;
  margin-right: 0.2cqw;
  border-radius: 0.28cqw;
  border: 1px solid rgba(255, 217, 168, 0.28);
  background: rgba(20, 15, 36, 0.55);
  color: rgba(255, 217, 168, 0.9);
  font-family: var(--sans);
  font-size: 0.9em;
  line-height: 1.5;
  text-align: center;
}

/* ---------- 底部提示条 ---------- */
.toast {
  position: absolute;
  left: 50%;
  bottom: 4.6cqw;
  transform: translate(-50%, 14px);
  max-width: 82%;
  padding: 1.05cqw 2cqw;
  border-radius: 999px;
  background: rgba(244, 232, 214, 0.95);
  color: #241d38;
  font-size: 1.05cqw;
  font-weight: 500;
  letter-spacing: 0.06em;
  white-space: nowrap;
  opacity: 0;
  transition:
    opacity 200ms cubic-bezier(0.16, 1, 0.3, 1),
    transform 260ms cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow:
    0 10px 30px -12px rgba(0, 0, 0, 0.9),
    0 0 0 1px rgba(255, 255, 255, 0.06),
    inset 0 -1px 0 rgba(0, 0, 0, 0.12);
}

.toast::before {
  content: "";
  display: inline-block;
  width: 0.42em;
  height: 0.42em;
  margin-right: 0.7em;
  border-radius: 50%;
  background: #d4603f;
  vertical-align: 0.12em;
  box-shadow: 0 0 0 3px rgba(212, 96, 63, 0.18);
}

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

/* ---------- 对话面板（守灯人）---------- */
.dialogue {
  position: absolute;
  left: 50%;
  bottom: 3.2cqw;
  width: min(61cqw, 94%);
  padding: 1.6cqw 2.1cqw 1.15cqw;
  border-radius: 1.1cqw;
  background: linear-gradient(180deg, rgba(33, 26, 55, 0.96), rgba(16, 12, 29, 0.96));
  border: 1px solid rgba(240, 167, 110, 0.5);
  box-shadow:
    0 2.4cqw 5.2cqw -1.6cqw rgba(0, 0, 0, 0.92),
    inset 0 0 0 1px rgba(255, 217, 168, 0.06);
  transform: translate(-50%, 1.1cqw);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition:
    opacity 170ms ease,
    transform 240ms cubic-bezier(0.16, 1, 0.3, 1),
    visibility 240ms;
}

.dialogue.on {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}

.dialogue-name {
  position: absolute;
  left: 2.1cqw;
  top: -1.02cqw;
  padding: 0.22cqw 0.86cqw;
  border-radius: 999px;
  background: #171226;
  border: 1px solid rgba(240, 167, 110, 0.55);
  color: #ffd9a8;
  font-family: var(--serif);
  font-size: 0.86cqw;
  letter-spacing: 0.14em;
  white-space: nowrap;
}

.dialogue-text {
  margin: 0;
  min-height: 3.1em;
  font-family: var(--serif);
  font-size: 1.34cqw;
  line-height: 1.72;
  letter-spacing: 0.04em;
  color: #fdf3e4;
}

.dialogue-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 0.72cqw;
  padding-top: 0.66cqw;
  border-top: 1px solid rgba(244, 232, 214, 0.1);
  font-size: 0.78cqw;
  letter-spacing: 0.12em;
  color: rgba(244, 232, 214, 0.36);
}

.dialogue-step {
  font-variant-numeric: tabular-nums;
  color: rgba(255, 217, 168, 0.58);
}

/* ---------- 进了小游戏：大厅标题与按键提示让位 ---------- */
body[data-scene]:not([data-scene="world"]) .hud-title,
body[data-scene]:not([data-scene="world"]) .hud-keys {
  opacity: 0;
}

/* ---------- iframe 场景壳（游戏 / 工具）---------- */
.iframe-scene {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  background: #07060c;
  z-index: 30;
}

.iframe-back {
  position: absolute;
  top: 1.5cqw;
  right: 1.5cqw;
  z-index: 31;
  padding: 0.78cqw 1.5cqw;
  border-radius: 999px;
  border: 1px solid rgba(255, 214, 170, 0.42);
  background: rgba(14, 11, 24, 0.72);
  color: rgba(255, 233, 208, 0.92);
  font-family: var(--sans);
  font-size: 0.92cqw;
  letter-spacing: 0.12em;
  cursor: pointer;
  opacity: 0.55;
  transition: opacity 160ms ease, transform 160ms ease, border-color 160ms ease, background 160ms ease;
  box-shadow: 0 10px 26px -14px rgba(0, 0, 0, 0.95);
  backdrop-filter: blur(6px);
}

.iframe-back:hover {
  opacity: 1;
  transform: translateY(-1px);
  border-color: rgba(255, 214, 170, 0.85);
  background: rgba(26, 20, 40, 0.9);
}

.iframe-back:focus-visible {
  outline: 2px solid rgba(255, 214, 170, 0.9);
  outline-offset: 2px;
}

/* 触屏没有 hover：直接把按钮做成常亮 */
@media (hover: none) {
  .iframe-back { opacity: 0.92; }
}

/* ---------- 台座说明 ---------- */
.caption {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(244, 232, 214, 0.26);
}

/* ---------- 窄屏：HUD 相对放大 ---------- */
@media (max-width: 720px) {
  .hud-title h1 { font-size: 3.4cqw; }
  .hud-title p { font-size: 1.5cqw; }
  .hud-keys { font-size: 1.5cqw; gap: 1.4cqw; }
  .toast { font-size: 2cqw; padding: 2cqw 3.4cqw; bottom: 5.5cqw; }
  .caption { display: none; }
  .stage { width: 100%; }
}

/* ---------- 降低动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .toast { transition-duration: 1ms; }
}