/* === 深空信标救援 · 透明贴边 HUD === */

.page-3d-game {
  font-family: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Source Han Sans SC", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
  --chip-bg: rgba(7, 12, 26, 0.42);
  --chip-bd: rgba(120, 180, 255, 0.22);
  --chip-fg: #e9f0ff;
  --chip-accent: #9ce6ff;
  --chip-warn: #ff7a59;
  --chip-good: #79f7c5;
  --chip-radius: 14px;
  --chip-pad: 12px 16px;
  --chip-blur: saturate(140%) blur(14px);
  background: #02040c;
  color: var(--chip-fg);
  overflow: hidden;
}

.page-3d-game .starfield {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(1px 1px at 12% 22%, rgba(255,255,255,.85), transparent 60%),
    radial-gradient(1px 1px at 78% 16%, rgba(180,210,255,.7), transparent 60%),
    radial-gradient(1px 1px at 42% 80%, rgba(255,230,200,.6), transparent 60%),
    radial-gradient(1px 1px at 90% 60%, rgba(200,220,255,.55), transparent 60%),
    radial-gradient(1px 1px at 30% 50%, rgba(255,255,255,.5), transparent 60%),
    radial-gradient(1200px 700px at 70% 30%, rgba(40,80,160,.22), transparent 70%),
    radial-gradient(900px 600px at 30% 80%, rgba(160,60,80,.18), transparent 70%),
    linear-gradient(180deg, #02040c 0%, #060b1c 60%, #02030a 100%);
}

.three-stage {
  position: relative;
  width: 100vw;
  height: 100vh;
}

#three-canvas-wrap {
  position: absolute;
  inset: 0;
}

#three-canvas {
  position: absolute;
  inset: 0;
  width: 100% !important;
  height: 100% !important;
  display: block;
}

/* === 准星：中心透明 === */
.reticle {
  position: absolute;
  top: 50%; left: 50%;
  width: 56px; height: 56px;
  transform: translate(-50%, -50%);
  pointer-events: none;
  opacity: 0;
  transition: opacity .35s ease;
  z-index: 4;
}
.reticle.active { opacity: 0.72; }
.reticle-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid rgba(156, 230, 255, 0.65);
  box-shadow: 0 0 0 1px rgba(156,230,255,0.12) inset, 0 0 14px rgba(156,230,255,0.25);
}
.reticle-dot {
  position: absolute;
  top: 50%; left: 50%;
  width: 4px; height: 4px;
  margin: -2px 0 0 -2px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 8px rgba(255,255,255,.9);
}
.reticle.locked .reticle-ring {
  border-color: var(--chip-good);
  box-shadow: 0 0 0 1px rgba(121,247,197,.18) inset, 0 0 18px rgba(121,247,197,.5);
}

/* === HUD chip：透明、贴边、小面积 === */
.hud-chip {
  position: absolute;
  z-index: 6;
  background: var(--chip-bg);
  border: 1px solid var(--chip-bd);
  border-radius: var(--chip-radius);
  padding: var(--chip-pad);
  backdrop-filter: var(--chip-blur);
  -webkit-backdrop-filter: var(--chip-blur);
  color: var(--chip-fg);
  font-size: 14px;
  line-height: 1.45;
  letter-spacing: .02em;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.35);
  pointer-events: none;
  transition: opacity .3s ease, transform .3s ease;
}

.hud-chip[hidden] { display: none; }

.hud-top-left {
  top: 18px;
  left: 18px;
  min-width: 260px;
}
.hud-top-right {
  top: 18px;
  right: 18px;
  min-width: 280px;
  display: grid;
  gap: 8px;
}
.hud-bottom-center {
  bottom: 22px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 14px;
  padding: 12px 18px;
  font-size: 13px;
  opacity: 0.92;
  transition: opacity .6s ease;
}
.hud-bottom-center.faded { opacity: 0.18; }

.chip-eyebrow {
  display: block;
  font-size: 12px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--chip-accent);
  margin-bottom: 4px;
}
.hud-top-left strong {
  display: block;
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 4px;
}
.chip-meta {
  display: block;
  color: rgba(233, 240, 255, 0.7);
  font-size: 13px;
}

.gauge-row {
  display: grid;
  grid-template-columns: 56px 1fr auto;
  align-items: center;
  gap: 10px;
}
.gauge-label {
  font-size: 12px;
  letter-spacing: .16em;
  color: rgba(233, 240, 255, 0.7);
}
.gauge {
  position: relative;
  height: 8px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}
.gauge.gauge-sm { height: 6px; }
.gauge-fill {
  height: 100%;
  border-radius: 3px;
  transition: width .15s ease, background .3s ease;
}
.gauge-shield { background: linear-gradient(90deg, #79f7c5, #58c8ff); box-shadow: 0 0 8px rgba(88,200,255,.4); }
.gauge-shield.low { background: linear-gradient(90deg, #ff7a59, #ffd14c); box-shadow: 0 0 10px rgba(255,122,89,.55); }
.gauge-beacon { background: linear-gradient(90deg, #9ce6ff, #a07cff); box-shadow: 0 0 8px rgba(160,124,255,.45); }
.gauge-num {
  font-variant-numeric: tabular-nums;
  font-size: 18px;
  color: var(--chip-fg);
  min-width: 44px;
  text-align: right;
}

kbd {
  display: inline-block;
  padding: 3px 7px;
  border-radius: 5px;
  background: rgba(156, 230, 255, 0.12);
  border: 1px solid rgba(156, 230, 255, 0.32);
  font-family: 'JetBrains Mono', ui-monospace, Consolas, monospace;
  font-size: 12px;
  margin: 0 2px;
  color: var(--chip-accent);
}

/* === 启动 / 结束 / 暂停 浮层 === */
.overlay-screen {
  position: absolute;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  background: radial-gradient(900px 600px at 50% 40%, rgba(2,6,20,0.55), rgba(0,0,0,0.85));
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  animation: fadeIn .35s ease;
}
.overlay-screen[hidden] { display: none; }
.overlay-screen.pause { background: rgba(2,6,20,0.62); }

.overlay-stack {
  max-width: 520px;
  text-align: center;
  padding: 36px 32px;
  border-radius: 18px;
  background: rgba(7,12,26,0.72);
  border: 1px solid rgba(120,180,255,0.22);
  box-shadow: 0 30px 60px rgba(0,0,0,0.45);
}
.overlay-stack .eyebrow {
  font-size: 13px;
  letter-spacing: .32em;
  text-transform: uppercase;
  color: var(--chip-accent);
  margin: 0 0 12px;
}
.overlay-stack h1 {
  margin: 0 0 12px;
  font-size: 40px;
  font-weight: 600;
  letter-spacing: .04em;
}
.overlay-stack .lede {
  color: rgba(233,240,255,0.78);
  margin: 0 0 22px;
  font-size: 16px;
  line-height: 1.7;
}
.mission-list {
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
  display: grid;
  gap: 8px;
  text-align: left;
}
.mission-list li {
  display: grid;
  grid-template-columns: 28px 1fr auto;
  gap: 10px;
  align-items: center;
  padding: 10px 12px;
  background: rgba(156, 230, 255, 0.05);
  border: 1px solid rgba(156, 230, 255, 0.14);
  border-radius: 10px;
}
.mission-list li span {
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--chip-accent);
}
.mission-list li b { font-size: 16px; }
.mission-list li em { font-size: 13px; color: rgba(233,240,255,0.62); font-style: normal; }

.primary-cta,
.ghost-cta {
  display: inline-block;
  font: inherit;
  font-size: 16px;
  letter-spacing: .04em;
  padding: 12px 26px;
  border-radius: 999px;
  border: 1px solid var(--chip-accent);
  background: linear-gradient(180deg, rgba(156,230,255,0.18), rgba(156,230,255,0.06));
  color: var(--chip-fg);
  cursor: pointer;
  margin: 4px;
  transition: transform .15s ease, box-shadow .15s ease, background .2s ease;
}
.primary-cta:hover { transform: translateY(-1px); box-shadow: 0 10px 24px rgba(156,230,255,.28); background: linear-gradient(180deg, rgba(156,230,255,.28), rgba(156,230,255,.1)); }
.ghost-cta {
  border-color: rgba(255,255,255,.2);
  background: transparent;
  color: rgba(233,240,255,.7);
}

.end-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin: 0 0 24px;
}
.end-stats div {
  background: rgba(156,230,255,0.06);
  border: 1px solid rgba(156,230,255,0.18);
  border-radius: 10px;
  padding: 10px 8px;
}
.end-stats b {
  display: block;
  font-size: 18px;
  font-variant-numeric: tabular-nums;
  color: var(--chip-accent);
}
.end-stats span {
  font-size: 10px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: rgba(233,240,255,0.62);
}

@keyframes fadeIn { from { opacity: 0; transform: scale(0.985); } to { opacity: 1; transform: scale(1); } }

/* === 媒体：窄屏贴得更紧 === */
@media (max-width: 720px) {
  .hud-top-left, .hud-top-right { font-size: 12px; padding: 10px 12px; }
  .hud-top-left { min-width: 220px; }
  .hud-top-right { min-width: 236px; }
  .hud-top-left strong { font-size: 18px; }
  .overlay-stack { margin: 16px; padding: 24px 20px; }
  .overlay-stack h1 { font-size: 30px; }
  .overlay-stack .lede { font-size: 14px; }
  .gauge-label { font-size: 11px; }
  .gauge-num { font-size: 15px; }
  .hud-bottom-center { font-size: 12px; gap: 8px; padding: 8px 12px; }
  kbd { font-size: 10px; padding: 1px 5px; }
}