/* ==========================================================================
   靶场尖兵 · 军训移动靶小游戏
   --------------------------------------------------------------------------
   视觉基调：深橄榄绿 + 旧纸沙色 + 琥珀警示色，军用训练终端 / 靶场简报风格。
   文件分为：变量 → 基础布局 → 画面质感 → HUD → 界面 → 结算 → 响应式。
   ========================================================================== */

:root {
  --ink: #070c08;
  --bg: #0a110c;
  --panel: rgba(11, 18, 12, 0.94);
  --panel-soft: rgba(20, 30, 20, 0.72);
  --olive: #718154;
  --olive-light: #bccb8f;
  --cream: #eee5ce;
  --cream-dim: #c4bda9;
  --muted: #939c86;
  --amber: #efbd58;
  --amber-light: #ffe0a0;
  --red: #b84632;
  --red-bright: #e45b3f;
  --line: rgba(238, 229, 206, 0.14);
  --line-strong: rgba(238, 229, 206, 0.3);
  --shadow: 0 30px 90px rgba(0, 0, 0, 0.55);
  --font-display: "Bahnschrift Condensed", "DIN Condensed", "Arial Narrow",
    "Impact", "Microsoft YaHei", "PingFang SC", sans-serif;
  --font-body: "Bahnschrift", "DIN Alternate", "PingFang SC",
    "Microsoft YaHei", "Segoe UI", sans-serif;
  --font-mono: "Cascadia Mono", "Consolas", "SFMono-Regular", monospace;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  margin: 0;
}

body {
  overflow: hidden;
  background: var(--ink);
  color: var(--cream);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  overscroll-behavior: none;
}

button {
  margin: 0;
  border: 0;
  color: inherit;
  font: inherit;
  background: none;
  cursor: pointer;
}

button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--amber-light);
  outline-offset: 4px;
}

kbd {
  display: inline-block;
  min-width: 1.65em;
  padding: 0.1em 0.38em;
  border: 1px solid rgba(238, 229, 206, 0.24);
  border-radius: 3px;
  background: rgba(238, 229, 206, 0.06);
  color: var(--cream-dim);
  font: 600 0.82em/1.4 var(--font-mono);
  text-align: center;
}

.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* --------------------------------------------------------------------------
   舞台与画布
   -------------------------------------------------------------------------- */

.stage {
  position: relative;
  width: 100%;
  height: 100%;
  height: 100svh;
  overflow: hidden;
  background:
    radial-gradient(circle at 72% 18%, rgba(239, 189, 88, 0.12), transparent 34%),
    #0a110c;
  isolation: isolate;
}

.stage.is-playing,
.stage.is-playing canvas {
  cursor: none;
}

#gameCanvas {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
  user-select: none;
}

/* --------------------------------------------------------------------------
   画面质感：暗角、扫描线、颗粒、命中 / 脱靶闪光
   -------------------------------------------------------------------------- */

.fx {
  position: absolute;
  inset: 0;
  z-index: 5;
  pointer-events: none;
}

.fx--vignette {
  background:
    radial-gradient(ellipse at center, transparent 44%, rgba(0, 0, 0, 0.38) 100%),
    linear-gradient(180deg, rgba(2, 6, 3, 0.38) 0%, transparent 20%, transparent 76%, rgba(2, 6, 3, 0.55) 100%);
}

.fx--scanlines {
  opacity: 0.22;
  background: repeating-linear-gradient(
    180deg,
    rgba(0, 0, 0, 0) 0,
    rgba(0, 0, 0, 0) 2px,
    rgba(0, 0, 0, 0.16) 3px,
    rgba(0, 0, 0, 0) 4px
  );
  mix-blend-mode: multiply;
}

.fx--grain {
  opacity: 0.055;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.55'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}

.hit-flash,
.miss-flash {
  position: absolute;
  inset: 0;
  z-index: 6;
  opacity: 0;
  pointer-events: none;
  transition: opacity 260ms ease-out;
}

.hit-flash {
  background: radial-gradient(circle at 50% 50%, rgba(255, 222, 151, 0.24), rgba(239, 189, 88, 0.05) 38%, transparent 66%);
}

.miss-flash {
  background: radial-gradient(ellipse at center, transparent 38%, rgba(160, 35, 24, 0.32) 100%);
}

.hit-flash.is-on,
.miss-flash.is-on {
  opacity: 1;
  transition-duration: 40ms;
}

/* --------------------------------------------------------------------------
   游戏内 HUD
   -------------------------------------------------------------------------- */

.hud {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: start;
  gap: 18px;
  padding:
    max(clamp(14px, 2.2vh, 28px), env(safe-area-inset-top, 0px))
    max(clamp(14px, 2.6vw, 36px), env(safe-area-inset-right, 0px))
    0
    max(clamp(14px, 2.6vw, 36px), env(safe-area-inset-left, 0px));
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: opacity 400ms var(--ease), transform 400ms var(--ease), visibility 400ms;
}

.hud.is-active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.hud__left,
.hud__right {
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.4vw, 16px);
}

.hud__right {
  justify-content: flex-end;
  pointer-events: auto;
}

.hud__center {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 164px;
  padding: 8px 22px 12px;
  border-top: 1px solid rgba(239, 189, 88, 0.5);
  background: linear-gradient(180deg, rgba(6, 11, 7, 0.7), rgba(6, 11, 7, 0.14));
  clip-path: polygon(12px 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%, 0 12px);
}

.hud-label {
  color: var(--muted);
  font: 600 10px/1 var(--font-mono);
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.score-value {
  margin-top: 3px;
  color: var(--cream);
  font: 900 clamp(38px, 4.6vw, 58px)/0.94 var(--font-display);
  letter-spacing: 0.05em;
  text-shadow: 0 2px 0 rgba(0, 0, 0, 0.3), 0 0 30px rgba(239, 189, 88, 0.18);
  font-variant-numeric: tabular-nums;
  transition: transform 120ms ease-out, color 120ms ease-out;
}

.score-value.is-bump {
  color: var(--amber-light);
  transform: scale(1.13);
}

.streak-badge {
  display: flex;
  align-items: center;
  gap: 5px;
  margin-top: 4px;
  color: var(--muted);
  font: 600 10px/1 var(--font-mono);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  transition: color 180ms ease;
}

.streak-badge b {
  color: var(--cream-dim);
  font-size: 12px;
}

.streak-badge__arrow {
  color: var(--amber);
  font-size: 7px;
  transition: transform 180ms var(--ease);
}

.streak-badge.is-hot {
  color: var(--amber);
}

.streak-badge.is-hot b {
  color: var(--amber-light);
}

.streak-badge.is-hot .streak-badge__arrow {
  transform: translateY(-2px);
}

.timer-dial {
  --angle: 360deg;
  position: relative;
  width: clamp(66px, 7vw, 84px);
  aspect-ratio: 1;
  flex: 0 0 auto;
  border-radius: 50%;
  background: conic-gradient(var(--amber) var(--angle), rgba(238, 229, 206, 0.13) 0);
  box-shadow: 0 0 0 1px rgba(239, 189, 88, 0.14), 0 8px 28px rgba(0, 0, 0, 0.28);
  transition: background 120ms linear;
}

.timer-dial::before {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 35%, rgba(31, 43, 29, 0.98), rgba(7, 12, 8, 0.98));
  box-shadow: inset 0 0 22px rgba(0, 0, 0, 0.5);
}

.timer-dial__inner {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 1;
}

.timer-dial__inner strong {
  color: var(--cream);
  font: 900 clamp(24px, 2.8vw, 34px)/0.9 var(--font-display);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

.timer-dial__inner span {
  margin-top: 3px;
  color: var(--muted);
  font: 600 8px/1 var(--font-mono);
  letter-spacing: 0.24em;
}

.timer-dial.is-warning {
  background: conic-gradient(var(--red-bright) var(--angle), rgba(228, 91, 63, 0.16) 0);
  animation: timerPulse 900ms ease-in-out infinite;
}

.timer-dial.is-warning .timer-dial__inner strong {
  color: #ffae97;
}

.timer-meta {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.live-dot {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--amber);
  font: 700 9px/1 var(--font-mono);
  letter-spacing: 0.2em;
}

.live-dot i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--red-bright);
  box-shadow: 0 0 0 3px rgba(228, 91, 63, 0.14), 0 0 10px rgba(228, 91, 63, 0.9);
  animation: blink 1.4s ease-in-out infinite;
}

.timer-meta__label {
  color: var(--muted);
  font: 500 10px/1 var(--font-body);
  letter-spacing: 0.14em;
}

.hud-mini {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 58px;
  padding-right: 12px;
  border-right: 1px solid var(--line);
  text-align: right;
}

.hud-mini span {
  color: var(--muted);
  font: 500 9px/1.2 var(--font-body);
  letter-spacing: 0.12em;
}

.hud-mini strong {
  color: var(--cream);
  font: 800 21px/1 var(--font-display);
  font-variant-numeric: tabular-nums;
}

.icon-button {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  width: 48px;
  height: 48px;
  border: 1px solid var(--line);
  background: rgba(9, 15, 10, 0.6);
  color: var(--cream-dim);
  font-size: 10px;
  letter-spacing: 0.08em;
  backdrop-filter: blur(8px);
  transition: border-color 180ms ease, color 180ms ease, background 180ms ease, transform 180ms ease;
}

.icon-button:hover {
  border-color: rgba(239, 189, 88, 0.5);
  background: rgba(239, 189, 88, 0.08);
  color: var(--amber-light);
  transform: translateY(-1px);
}

.icon-button:active {
  transform: translateY(0);
}

.icon {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.icon--off,
.icon-button.is-muted .icon--on {
  display: none;
}

.icon-button.is-muted .icon--off {
  display: block;
}

/* 底部提示条 */
.hint-bar {
  position: absolute;
  bottom: max(clamp(16px, 3.2vh, 34px), env(safe-area-inset-bottom, 0px));
  left: 50%;
  z-index: 18;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 18px;
  border: 1px solid var(--line);
  background: rgba(7, 12, 8, 0.64);
  color: var(--muted);
  font: 500 10px/1 var(--font-mono);
  letter-spacing: 0.14em;
  white-space: nowrap;
  backdrop-filter: blur(10px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translate(-50%, 8px);
  transition: opacity 500ms ease 400ms, transform 500ms var(--ease) 400ms, visibility 500ms;
}

.hint-bar.is-active {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}

.hint-bar__cross {
  position: relative;
  width: 13px;
  height: 13px;
  flex: 0 0 auto;
  border: 1px solid var(--amber);
  border-radius: 50%;
  opacity: 0.9;
}

.hint-bar__cross::before,
.hint-bar__cross::after {
  content: "";
  position: absolute;
  background: var(--amber);
}

.hint-bar__cross::before {
  top: 5px;
  left: -4px;
  width: 19px;
  height: 1px;
}

.hint-bar__cross::after {
  top: -4px;
  left: 5px;
  width: 1px;
  height: 19px;
}

.hint-bar__sep {
  color: rgba(238, 229, 206, 0.25);
}

/* --------------------------------------------------------------------------
   通用界面层
   -------------------------------------------------------------------------- */

.screen {
  position: absolute;
  inset: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(12px, 3vh, 36px) clamp(12px, 4vw, 48px);
  overflow-y: auto;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 380ms ease, visibility 380ms;
  background:
    radial-gradient(ellipse at 50% 42%, rgba(15, 24, 16, 0.4), rgba(4, 8, 5, 0.86) 76%),
    rgba(4, 8, 5, 0.5);
}

.screen.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.screen--start {
  align-items: center;
  background:
    linear-gradient(90deg, rgba(5, 10, 6, 0.84) 0%, rgba(5, 10, 6, 0.44) 55%, rgba(5, 10, 6, 0.74) 100%),
    radial-gradient(ellipse at 20% 30%, rgba(86, 103, 57, 0.18), transparent 55%);
  backdrop-filter: blur(2px);
}

.screen--modal {
  z-index: 50;
  backdrop-filter: blur(9px) saturate(0.85);
}

.panel-frame {
  position: relative;
  width: 100%;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.025), transparent 40%),
    var(--panel);
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.panel-frame::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 18%;
  width: 26%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--amber), transparent);
  opacity: 0.75;
}

.corner {
  position: absolute;
  z-index: 2;
  width: 14px;
  height: 14px;
  border-color: rgba(239, 189, 88, 0.72);
  pointer-events: none;
}

.corner--tl {
  top: 7px;
  left: 7px;
  border-top: 1px solid;
  border-left: 1px solid;
}

.corner--tr {
  top: 7px;
  right: 7px;
  border-top: 1px solid;
  border-right: 1px solid;
}

.corner--bl {
  bottom: 7px;
  left: 7px;
  border-bottom: 1px solid;
  border-left: 1px solid;
}

.corner--br {
  right: 7px;
  bottom: 7px;
  border-right: 1px solid;
  border-bottom: 1px solid;
}

/* --------------------------------------------------------------------------
   开始页
   -------------------------------------------------------------------------- */

.start-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.92fr);
  grid-template-rows: 1fr auto;
  gap: 0 48px;
  max-width: 1160px;
  max-height: calc(100svh - 32px);
  padding: clamp(30px, 4vw, 52px) clamp(28px, 4.4vw, 58px) 22px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(239, 189, 88, 0.4) transparent;
}

.start-hero {
  align-self: center;
  padding-bottom: 26px;
}

.platform-line {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 28px;
}

.platform-line::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--amber);
}

.platform-line span {
  color: var(--olive-light);
  font: 600 10px/1 var(--font-mono);
  letter-spacing: 0.16em;
}

.eyebrow {
  margin: 0;
  color: var(--amber);
  font: 700 10px/1.4 var(--font-mono);
  letter-spacing: 0.26em;
  text-transform: uppercase;
}

.game-title {
  display: flex;
  flex-direction: column;
  margin: 18px 0 20px;
  font-family: var(--font-display);
  font-size: clamp(76px, 9.2vw, 126px);
  font-weight: 900;
  line-height: 0.79;
  letter-spacing: 0.015em;
}

.game-title__line {
  display: block;
  width: fit-content;
  color: var(--cream);
  text-shadow: 0 6px 0 rgba(0, 0, 0, 0.16);
}

.game-title__line--accent {
  margin-top: 8px;
  padding-left: 0.36em;
  color: var(--amber);
  -webkit-text-stroke: 1px var(--amber);
  text-shadow: 0 0 36px rgba(239, 189, 88, 0.16);
}

.game-title__line--accent::before {
  content: "";
  display: inline-block;
  width: 0.14em;
  height: 0.62em;
  margin-right: 0.16em;
  background: var(--red-bright);
  transform: skewX(-12deg) translateY(-0.03em);
}

.hero-lead {
  max-width: 31em;
  margin: 0;
  color: var(--cream-dim);
  font-size: clamp(13px, 1.15vw, 15px);
  line-height: 1.95;
  letter-spacing: 0.04em;
}

.hero-lead strong {
  color: var(--amber-light);
  font-weight: 700;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 26px 0 30px;
}

.tag {
  padding: 7px 10px 6px;
  border: 1px solid var(--line);
  color: var(--muted);
  font: 600 9px/1 var(--font-mono);
  letter-spacing: 0.16em;
}

.tag--amber {
  border-color: rgba(239, 189, 88, 0.42);
  background: rgba(239, 189, 88, 0.08);
  color: var(--amber);
}

.start-actions {
  display: flex;
  align-items: stretch;
  gap: 26px;
}

.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 52px;
  padding: 0 30px;
  border: 1px solid transparent;
  font: 700 13px/1 var(--font-body);
  letter-spacing: 0.13em;
  text-decoration: none;
  transition: transform 200ms var(--ease), background 200ms ease, color 200ms ease, border-color 200ms ease, box-shadow 200ms ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn--primary {
  overflow: hidden;
  background: var(--amber);
  color: #171307;
  clip-path: polygon(0 0, calc(100% - 13px) 0, 100% 13px, 100% 100%, 0 100%);
  box-shadow: 0 12px 30px rgba(239, 189, 88, 0.16);
}

.btn--primary::after {
  content: "";
  position: absolute;
  top: 0;
  left: -80%;
  width: 45%;
  height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.32), transparent);
  transform: skewX(-22deg);
  transition: left 650ms var(--ease);
}

.btn--primary:hover {
  background: var(--amber-light);
  box-shadow: 0 16px 40px rgba(239, 189, 88, 0.22);
}

.btn--primary:hover::after {
  left: 130%;
}

.btn__icon {
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border: 1px solid rgba(23, 19, 7, 0.35);
  border-radius: 50%;
  font-size: 8px;
  padding-left: 1px;
}

.btn__arrow {
  margin-left: 8px;
  font-size: 16px;
  transition: transform 200ms var(--ease);
}

.btn--primary:hover .btn__arrow {
  transform: translateX(4px);
}

.btn--ghost {
  border-color: var(--line-strong);
  background: rgba(238, 229, 206, 0.035);
  color: var(--cream);
}

.btn--ghost:hover {
  border-color: rgba(239, 189, 88, 0.5);
  background: rgba(239, 189, 88, 0.07);
  color: var(--amber-light);
}

.btn--text {
  padding: 0 16px;
  color: var(--muted);
  font-size: 12px;
}

.btn--text:hover {
  color: var(--cream);
}

.best-record {
  display: grid;
  grid-template-columns: auto auto;
  grid-template-rows: auto auto;
  align-content: center;
  column-gap: 7px;
  padding-left: 26px;
  border-left: 1px solid var(--line);
}

.best-record span {
  grid-column: 1 / -1;
  color: var(--muted);
  font: 500 9px/1 var(--font-body);
  letter-spacing: 0.16em;
}

.best-record strong {
  color: var(--cream);
  font: 900 34px/1.1 var(--font-display);
  font-variant-numeric: tabular-nums;
}

.best-record small {
  align-self: end;
  padding-bottom: 4px;
  color: var(--amber);
  font: 600 8px/1 var(--font-mono);
  letter-spacing: 0.12em;
}

.control-line {
  margin: 25px 0 0;
  color: var(--muted);
  font: 500 10px/1.7 var(--font-body);
  letter-spacing: 0.08em;
}

.control-line span {
  margin: 0 5px;
  opacity: 0.45;
}

/* 右侧简报 */
.rules-panel {
  align-self: center;
  padding: 4px 0 26px 44px;
  border-left: 1px solid var(--line);
}

.rules-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.rules-head h2 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.rules-head span {
  color: var(--muted);
  font: 600 8px/1 var(--font-mono);
  letter-spacing: 0.2em;
}

.rule-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.rule-list li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px;
  padding: 16px 0;
  border-bottom: 1px dashed rgba(238, 229, 206, 0.09);
}

.rule-index {
  padding-top: 3px;
  color: var(--amber);
  font: 700 10px/1 var(--font-mono);
  letter-spacing: 0.08em;
}

.rule-list h3 {
  margin: 0 0 6px;
  color: var(--cream);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.11em;
}

.rule-list p {
  margin: 0;
  color: var(--muted);
  font-size: 11.5px;
  line-height: 1.75;
}

.target-demo {
  position: relative;
  display: flex;
  align-items: center;
  gap: 20px;
  margin-top: 22px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  background:
    linear-gradient(90deg, rgba(239, 189, 88, 0.055), transparent),
    rgba(0, 0, 0, 0.14);
  overflow: hidden;
}

.target-demo__board {
  position: relative;
  width: 62px;
  height: 62px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--red);
  box-shadow: 0 0 0 3px rgba(238, 229, 206, 0.85), 0 8px 18px rgba(0, 0, 0, 0.35);
}

.target-demo__board span {
  position: absolute;
  inset: 15%;
  border-radius: 50%;
  background: var(--cream);
}

.target-demo__board span:nth-child(2) {
  inset: 30%;
  background: var(--red);
}

.target-demo__board span:nth-child(3) {
  inset: 43%;
  background: var(--amber);
}

.target-demo__board i {
  position: absolute;
  inset: 48%;
  border-radius: 50%;
  background: #1a140a;
}

.target-demo__sight {
  position: absolute;
  top: 50%;
  left: 47px;
  width: 26px;
  height: 26px;
  border: 1px solid var(--amber);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  opacity: 0.7;
}

.target-demo__sight::before,
.target-demo__sight::after {
  content: "";
  position: absolute;
  background: var(--amber);
}

.target-demo__sight::before {
  top: 11px;
  left: -9px;
  width: 42px;
  height: 1px;
}

.target-demo__sight::after {
  top: -9px;
  left: 11px;
  width: 1px;
  height: 42px;
}

.target-demo p {
  margin: 0;
  color: var(--cream-dim);
  font-size: 11px;
  letter-spacing: 0.06em;
}

.target-demo strong {
  position: absolute;
  right: 18px;
  color: var(--amber);
  font: 900 26px/1 var(--font-display);
  animation: floatScore 1.8s ease-in-out infinite;
}

.start-footer {
  display: flex;
  grid-column: 1 / -1;
  justify-content: space-between;
  gap: 20px;
  padding-top: 19px;
  border-top: 1px solid var(--line);
  margin-top: 16px;
  color: var(--muted);
  font-size: 9.5px;
  letter-spacing: 0.08em;
}

/* 开始页入场节奏 */
.screen.is-open .start-hero > * {
  animation: riseIn 700ms var(--ease) both;
}

.screen.is-open .start-hero > :nth-child(1) { animation-delay: 60ms; }
.screen.is-open .start-hero > :nth-child(2) { animation-delay: 120ms; }
.screen.is-open .start-hero > :nth-child(3) { animation-delay: 180ms; }
.screen.is-open .start-hero > :nth-child(4) { animation-delay: 250ms; }
.screen.is-open .start-hero > :nth-child(5) { animation-delay: 310ms; }
.screen.is-open .start-hero > :nth-child(6) { animation-delay: 370ms; }
.screen.is-open .start-hero > :nth-child(7) { animation-delay: 430ms; }
.screen.is-open .start-hero > :nth-child(8) { animation-delay: 490ms; }

.screen.is-open .rules-panel {
  animation: riseIn 700ms var(--ease) 260ms both;
}

/* --------------------------------------------------------------------------
   暂停 / 结算弹层
   -------------------------------------------------------------------------- */

.modal-card {
  max-width: 540px;
  padding: clamp(30px, 4vw, 46px);
  text-align: left;
}

.modal-card::after {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(238, 229, 206, 0.04);
  pointer-events: none;
}

.modal-title {
  margin: 12px 0 0;
  font: 900 clamp(36px, 5vw, 54px)/1 var(--font-display);
  letter-spacing: 0.06em;
}

.modal-copy {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.8;
}

.modal-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.modal-hint {
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 10px;
  letter-spacing: 0.08em;
}

/* 结算 */
.result-card {
  max-width: 780px;
  padding: clamp(28px, 3.6vw, 44px);
}

.result-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.result-head .modal-title {
  font-size: clamp(30px, 4vw, 44px);
}

.new-record {
  padding: 7px 10px;
  border: 1px solid rgba(239, 189, 88, 0.55);
  background: rgba(239, 189, 88, 0.12);
  color: var(--amber-light);
  font: 700 9px/1 var(--font-mono);
  letter-spacing: 0.18em;
  animation: recordPulse 1.6s ease-in-out infinite;
}

.result-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 230px;
  align-items: stretch;
  gap: 30px;
  padding: 28px 0 26px;
}

.result-score-block {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.result-label {
  color: var(--muted);
  font: 600 10px/1 var(--font-mono);
  letter-spacing: 0.22em;
}

.result-score {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  margin-top: 4px;
}

.result-score strong {
  color: var(--amber);
  font: 900 clamp(76px, 10vw, 116px)/0.8 var(--font-display);
  letter-spacing: 0.015em;
  font-variant-numeric: tabular-nums;
  text-shadow: 0 0 50px rgba(239, 189, 88, 0.16);
}

.result-score span {
  padding-bottom: 9px;
  color: var(--amber);
  font: 700 10px/1 var(--font-mono);
  letter-spacing: 0.18em;
}

.result-message {
  margin: 20px 0 0;
  color: var(--cream-dim);
  font-size: 12px;
  line-height: 1.7;
}

.rank-badge {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 24px 16px;
  border: 1px solid rgba(239, 189, 88, 0.3);
  background:
    radial-gradient(circle at 50% 25%, rgba(239, 189, 88, 0.14), transparent 65%),
    rgba(0, 0, 0, 0.18);
  text-align: center;
}

.rank-badge__stars {
  color: var(--amber);
  font-size: 16px;
  letter-spacing: 0.32em;
  text-indent: 0.32em;
}

.rank-badge__label {
  color: var(--muted);
  font: 500 8px/1 var(--font-body);
  letter-spacing: 0.26em;
}

.rank-badge strong {
  color: var(--cream);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.rank-badge > span:last-child {
  color: var(--amber);
  font: 700 8px/1 var(--font-mono);
  letter-spacing: 0.22em;
}

.rank-badge[data-rank="marksman"] {
  border-color: rgba(188, 203, 143, 0.45);
}

.rank-badge[data-rank="marksman"] .rank-badge__stars,
.rank-badge[data-rank="marksman"] > span:last-child {
  color: var(--olive-light);
}

.rank-badge[data-rank="sniper"] {
  border-color: rgba(255, 224, 160, 0.7);
  background:
    radial-gradient(circle at 50% 25%, rgba(239, 189, 88, 0.26), transparent 68%),
    rgba(239, 189, 88, 0.06);
  box-shadow: 0 0 50px rgba(239, 189, 88, 0.09), inset 0 0 30px rgba(239, 189, 88, 0.05);
}

.rank-badge[data-rank="sniper"] strong {
  color: var(--amber-light);
  font-size: 26px;
}

.result-stats {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.result-stat {
  padding: 18px 12px;
  border-right: 1px solid var(--line);
  text-align: center;
}

.result-stat:last-child {
  border-right: 0;
}

.result-stat span {
  display: block;
  color: var(--muted);
  font-size: 9.5px;
  letter-spacing: 0.08em;
}

.result-stat strong {
  display: block;
  margin-top: 7px;
  color: var(--cream);
  font: 800 25px/1 var(--font-display);
  font-variant-numeric: tabular-nums;
}

.result-stat--best strong {
  color: var(--amber);
}

.modal-actions--result {
  margin-top: 24px;
}

.result-footnote {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-align: center;
}

/* --------------------------------------------------------------------------
   倒计时 & Toast
   -------------------------------------------------------------------------- */

.countdown-screen {
  position: absolute;
  inset: 0;
  z-index: 35;
  display: grid;
  place-items: center;
  pointer-events: none;
  background: radial-gradient(circle at center, rgba(6, 11, 7, 0.32), transparent 52%);
  opacity: 0;
  visibility: hidden;
  transition: opacity 220ms ease, visibility 220ms;
}

.countdown-screen.is-open {
  opacity: 1;
  visibility: visible;
}

.countdown-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  transform: translateY(-6px);
}

.countdown-kicker {
  margin: 0 0 18px;
  color: var(--amber);
  font: 700 9px/1 var(--font-mono);
  letter-spacing: 0.36em;
  text-indent: 0.36em;
}

.countdown-ring {
  position: relative;
  display: grid;
  place-items: center;
  width: clamp(120px, 17vw, 180px);
  height: clamp(120px, 17vw, 180px);
  border: 1px solid rgba(239, 189, 88, 0.55);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(239, 189, 88, 0.09), rgba(5, 9, 6, 0.55) 70%);
  box-shadow: 0 0 0 14px rgba(239, 189, 88, 0.035), 0 0 80px rgba(239, 189, 88, 0.1);
}

.countdown-ring::before,
.countdown-ring::after {
  content: "";
  position: absolute;
  border-radius: 50%;
}

.countdown-ring::before {
  inset: 10px;
  border: 1px dashed rgba(239, 189, 88, 0.25);
  animation: spin 12s linear infinite;
}

.countdown-ring::after {
  inset: -14px;
  border-top: 1px solid var(--amber);
  border-right: 1px solid transparent;
  border-bottom: 1px solid transparent;
  border-left: 1px solid transparent;
  animation: spin 1.2s linear infinite;
}

.countdown-ring span {
  color: var(--cream);
  font: 900 clamp(56px, 8vw, 92px)/1 var(--font-display);
  font-variant-numeric: tabular-nums;
  text-shadow: 0 0 40px rgba(239, 189, 88, 0.2);
}

.countdown-ring span.is-pop {
  animation: countPop 520ms var(--ease);
}

.countdown-label {
  margin: 22px 0 0;
  color: var(--cream-dim);
  font-size: 11px;
  letter-spacing: 0.24em;
}

.toast {
  position: absolute;
  bottom: clamp(62px, 10vh, 108px);
  left: 50%;
  z-index: 32;
  padding: 8px 18px;
  border: 1px solid rgba(239, 189, 88, 0.35);
  background: rgba(8, 13, 9, 0.78);
  color: var(--amber-light);
  font: 600 11px/1 var(--font-body);
  letter-spacing: 0.12em;
  white-space: nowrap;
  opacity: 0;
  transform: translate(-50%, 8px);
  transition: opacity 180ms ease, transform 260ms var(--ease);
  pointer-events: none;
  backdrop-filter: blur(8px);
}

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

/* --------------------------------------------------------------------------
   动画关键帧
   -------------------------------------------------------------------------- */

@keyframes riseIn {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

@keyframes timerPulse {
  0%, 100% { box-shadow: 0 0 0 1px rgba(228, 91, 63, 0.18), 0 0 0 rgba(228, 91, 63, 0); }
  50% { box-shadow: 0 0 0 1px rgba(228, 91, 63, 0.5), 0 0 26px rgba(228, 91, 63, 0.2); }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes countPop {
  0% { opacity: 0; transform: scale(1.55); }
  32% { opacity: 1; transform: scale(1); }
  100% { opacity: 0.86; transform: scale(0.94); }
}

@keyframes floatScore {
  0%, 100% { transform: translateY(0); opacity: 0.65; }
  50% { transform: translateY(-7px); opacity: 1; }
}

@keyframes recordPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(239, 189, 88, 0.22); }
  50% { box-shadow: 0 0 0 5px rgba(239, 189, 88, 0); }
}

/* --------------------------------------------------------------------------
   响应式
   -------------------------------------------------------------------------- */

@media (max-width: 1000px) {
  .start-panel {
    grid-template-columns: 1fr;
    gap: 0;
    max-width: 700px;
    padding: 34px 34px 20px;
  }

  .start-hero {
    padding-bottom: 20px;
  }

  .rules-panel {
    padding: 26px 0 10px;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .game-title {
    font-size: clamp(68px, 12vw, 104px);
  }

  .start-footer {
    margin-top: 0;
  }
}

@media (max-width: 760px) {
  .hud {
    gap: 8px;
    padding: 12px;
  }

  .hud__left,
  .hud__right {
    gap: 8px;
  }

  .timer-meta,
  .hud-mini {
    display: none;
  }

  .timer-dial {
    width: 58px;
  }

  .timer-dial__inner strong {
    font-size: 22px;
  }

  .hud__center {
    min-width: 120px;
    padding: 6px 14px 9px;
  }

  .score-value {
    font-size: 38px;
  }

  .icon-button {
    width: 42px;
    height: 42px;
    font-size: 0;
  }

  .icon {
    width: 17px;
    height: 17px;
  }

  .hint-bar {
    bottom: 14px;
    gap: 7px;
    padding: 8px 12px;
    font-size: 9px;
    letter-spacing: 0.06em;
  }

  .hint-bar span:nth-of-type(2),
  .hint-bar__sep {
    display: none;
  }

  .screen {
    padding: 10px;
  }

  .start-panel {
    max-height: calc(100svh - 20px);
    padding: 28px 22px 18px;
  }

  .platform-line {
    margin-bottom: 20px;
  }

  .platform-line span {
    font-size: 8.5px;
    letter-spacing: 0.1em;
  }

  .game-title {
    margin: 14px 0 18px;
    font-size: clamp(62px, 19vw, 92px);
  }

  .hero-lead {
    font-size: 12.5px;
    line-height: 1.8;
  }

  .hero-tags {
    margin: 20px 0 24px;
  }

  .start-actions {
    flex-wrap: wrap;
    gap: 18px;
  }

  .btn {
    min-height: 48px;
    padding: 0 24px;
    font-size: 12px;
  }

  .best-record {
    padding-left: 20px;
  }

  .best-record strong {
    font-size: 28px;
  }

  .control-line {
    font-size: 9.5px;
  }

  .rules-panel {
    padding-top: 20px;
  }

  .rule-list li {
    padding: 13px 0;
  }

  .target-demo {
    margin-top: 16px;
  }

  .start-footer {
    flex-direction: column;
    gap: 6px;
  }

  .modal-card,
  .result-card {
    padding: 28px 22px;
  }

  .result-hero {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 22px 0;
  }

  .rank-badge {
    flex-direction: row;
    justify-content: flex-start;
    gap: 10px;
    padding: 14px 16px;
    text-align: left;
  }

  .rank-badge__stars {
    font-size: 13px;
  }

  .rank-badge__label {
    display: none;
  }

  .rank-badge strong {
    font-size: 18px;
  }

  .rank-badge > span:last-child {
    margin-left: auto;
  }

  .result-score strong {
    font-size: clamp(76px, 23vw, 104px);
  }

  .result-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .result-stat {
    border-bottom: 1px solid var(--line);
  }

  .result-stat:nth-child(3n) {
    border-right: 0;
  }

  .result-stat:nth-last-child(-n + 2) {
    border-bottom: 0;
  }

  .result-stat strong {
    font-size: 22px;
  }

  .modal-actions--result .btn {
    flex: 1;
  }

  .toast {
    bottom: 58px;
    font-size: 10px;
  }
}

@media (max-width: 430px) {
  .game-title {
    font-size: clamp(58px, 18vw, 78px);
  }

  .tag {
    font-size: 8px;
    padding: 6px 8px 5px;
  }

  .hero-tags {
    gap: 6px;
  }

  .target-demo {
    gap: 13px;
    padding: 12px;
  }

  .target-demo__board {
    width: 50px;
    height: 50px;
  }

  .target-demo__sight {
    left: 37px;
    width: 22px;
    height: 22px;
  }

  .target-demo__sight::before {
    top: 9px;
    left: -8px;
    width: 36px;
  }

  .target-demo__sight::after {
    top: -8px;
    left: 9px;
    height: 36px;
  }

  .target-demo strong {
    right: 12px;
  }
}

@media (max-height: 620px) and (min-width: 761px) {
  .start-panel {
    padding-top: 26px;
    padding-bottom: 16px;
  }

  .platform-line {
    margin-bottom: 16px;
  }

  .game-title {
    margin: 10px 0 14px;
    font-size: clamp(60px, 7vw, 88px);
  }

  .hero-lead {
    line-height: 1.65;
  }

  .hero-tags {
    margin: 16px 0 18px;
  }

  .rule-list li {
    padding: 11px 0;
  }

  .target-demo {
    display: none;
  }
}

/* 尊重系统的“减少动态效果”设置 */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
  }

  .screen.is-open .start-hero > *,
  .screen.is-open .rules-panel {
    animation: none;
  }

  .fx--scanlines {
    display: none;
  }
}