* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --accent: #6b8f4e;
  --accent-glow: rgba(107, 143, 78, 0.45);
  --text: #e8f0e0;
  --text-dim: #a0b090;
  --border: rgba(107, 143, 78, 0.3);
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #0a0f0a;
  font-family: "SF Pro Display", "PingFang SC", "Helvetica Neue", sans-serif;
  color: var(--text);
}

#game-canvas {
  display: block;
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

#game-canvas.game-active {
  pointer-events: auto;
  z-index: 1;
}

/* ── 准备界面 / 登录界面（统一风格） ── */
.prep-screen {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background:
    linear-gradient(180deg, rgba(10, 20, 10, 0.88) 0%, rgba(5, 8, 5, 0.96) 100%),
    radial-gradient(ellipse at 30% 20%, rgba(60, 90, 40, 0.18) 0%, transparent 60%),
    radial-gradient(ellipse at 70% 80%, rgba(40, 60, 30, 0.12) 0%, transparent 50%);
  z-index: 10;
  gap: 0.6rem;
  padding: 1rem;
  overflow: hidden;
}

.prep-screen::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(107, 143, 78, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(107, 143, 78, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
}

.prep-scanlines {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.03) 2px,
    rgba(0, 0, 0, 0.03) 4px
  );
  opacity: 0.6;
}

#login-gate,
#register-gate {
  z-index: 20;
}

.auth-screen {
  overflow-y: auto;
  justify-content: flex-start;
  padding: 2rem 1rem 2.5rem;
}

.auth-screen .prep-content {
  z-index: 2;
  flex-shrink: 0;
  margin: auto;
}

.auth-switch {
  margin-top: 0.35rem;
  padding: 0.65rem 1.4rem;
  background: rgba(20, 30, 18, 0.65);
  border: 1px solid rgba(107, 143, 78, 0.35);
  border-radius: 2px;
  color: var(--text-dim);
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
  z-index: 3;
  pointer-events: auto;
}

.auth-switch:hover {
  color: var(--text);
  border-color: var(--accent);
  background: rgba(61, 90, 42, 0.35);
  box-shadow: 0 0 16px rgba(107, 143, 78, 0.15);
}

.prep-content {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  width: min(92vw, 480px);
  animation: fadeUp 0.5s ease-out;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.logo {
  font-size: 0.75rem;
  letter-spacing: 0.5em;
  color: var(--accent);
  margin-bottom: 0.25rem;
}

.prep-content h1 {
  font-size: clamp(2rem, 5vw, 2.8rem);
  font-weight: 200;
  letter-spacing: 0.25em;
  color: var(--text);
  text-shadow: 0 0 40px var(--accent-glow);
}

.subtitle {
  color: #7a9070;
  font-size: 0.9rem;
  letter-spacing: 0.3em;
  margin-bottom: 0.5rem;
}

.mission-brief {
  width: 100%;
  background: rgba(20, 30, 18, 0.72);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  padding: 1.25rem 1.6rem 1.35rem;
  box-shadow:
    0 12px 40px rgba(0, 0, 0, 0.35),
    inset 0 1px 0 rgba(107, 143, 78, 0.12);
  position: relative;
}

.mission-brief::before {
  content: "";
  position: absolute;
  top: 0;
  left: 1.6rem;
  right: 1.6rem;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.65;
}

.mission-brief h3 {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 0.75rem;
  text-transform: uppercase;
}

.mission-brief ul {
  list-style: none;
  font-size: 0.85rem;
  color: var(--text-dim);
}

.mission-brief li {
  padding: 0.3rem 0;
  padding-left: 1rem;
  position: relative;
}

.mission-brief li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--accent);
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.8rem;
  justify-content: center;
  max-width: 520px;
}

.controls span {
  padding: 0.25rem 0.55rem;
  border: 1px solid rgba(107, 143, 78, 0.2);
  background: rgba(20, 30, 18, 0.5);
  font-size: 0.72rem;
  color: #607050;
  letter-spacing: 0.06em;
}

.btn-primary {
  margin-top: 0.5rem;
  padding: 0.9rem 3.2rem;
  font-size: 0.95rem;
  letter-spacing: 0.2em;
  background: rgba(107, 143, 78, 0.08);
  border: 1px solid var(--accent);
  color: var(--text);
  cursor: pointer;
  transition: all 0.25s;
  position: relative;
  overflow: hidden;
}

.btn-primary::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 30%, rgba(255, 255, 255, 0.06) 50%, transparent 70%);
  transform: translateX(-100%);
  transition: transform 0.5s;
}

.btn-primary:hover {
  background: #6b8f4e;
  box-shadow: 0 0 30px var(--accent-glow), 0 4px 20px rgba(0, 0, 0, 0.3);
  transform: translateY(-1px);
}

.btn-primary:hover::after {
  transform: translateX(100%);
}

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

.btn-primary:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.prep-note {
  font-size: 0.72rem;
  color: #607050;
  letter-spacing: 0.12em;
  text-align: center;
}

/* ── 登录 / 注册表单 ── */
.auth-brief {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding-top: 1.35rem;
}

.auth-brief h3 {
  margin-bottom: 1rem;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.auth-form label span {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.68rem;
  color: var(--accent);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.auth-form input {
  width: 100%;
  padding: 0.7rem 0.85rem;
  background: rgba(8, 12, 8, 0.85);
  border: 1px solid rgba(107, 143, 78, 0.22);
  border-left: 3px solid rgba(107, 143, 78, 0.45);
  color: var(--text);
  font-size: 0.88rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s, border-left-color 0.2s;
}

.auth-form input::placeholder {
  color: #4a5a42;
}

.auth-form input:focus {
  border-color: var(--accent);
  border-left-color: var(--accent);
  box-shadow: 0 0 16px rgba(107, 143, 78, 0.12);
}

.auth-error {
  color: #e07070;
  font-size: 0.78rem;
  text-align: center;
  min-height: 0;
  margin-top: 0.75rem;
  padding: 0.45rem 0.6rem;
  background: rgba(80, 30, 30, 0.25);
  border: 1px solid rgba(200, 100, 100, 0.25);
}

.auth-error:empty {
  display: none;
}

.user-bar {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.4rem 0.75rem;
  background: rgba(20, 30, 18, 0.65);
  border: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--text-dim);
}

.user-badge {
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  color: var(--accent);
}

.user-bar strong {
  color: var(--text);
}

.logout-btn {
  padding: 0.2rem 0.6rem;
  background: transparent;
  border: 1px solid rgba(160, 112, 112, 0.45);
  color: #c89090;
  cursor: pointer;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  transition: background 0.2s;
}

.logout-btn:hover {
  background: rgba(80, 30, 30, 0.35);
}

#login-submit-btn,
#register-submit-btn {
  margin-top: 0.25rem;
}

.menu-actions {
  display: flex;
  align-items: stretch;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
  width: 100%;
  margin-top: 0.25rem;
}

.menu-actions > .btn-primary,
.menu-actions > .btn-secondary {
  margin: 0;
  min-height: 3.1rem;
  padding: 0.85rem 1.8rem;
  font-size: 0.9rem;
  letter-spacing: 0.16em;
  line-height: 1.2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
}

.btn-secondary {
  padding: 0.9rem 2rem;
  font-size: 0.88rem;
  letter-spacing: 0.18em;
  background: rgba(20, 30, 18, 0.55);
  border: 1px solid rgba(107, 143, 78, 0.45);
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.25s;
}

.btn-secondary:hover {
  color: var(--text);
  border-color: var(--accent);
  background: rgba(61, 90, 42, 0.28);
  box-shadow: 0 0 20px rgba(107, 143, 78, 0.12);
}

#shop-screen {
  z-index: 18;
}

/* ── 武器朝向调节 ── */
.weapon-pose-panel {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: flex;
  align-items: stretch;
  justify-content: flex-end;
  background: transparent;
  pointer-events: none;
}

.weapon-pose-panel.hidden {
  display: none;
}

.weapon-pose-card {
  pointer-events: auto;
  width: min(92vw, 360px);
  margin: 1rem;
  padding: 1.15rem 1.2rem 1.25rem;
  border: 1px solid rgba(107, 143, 78, 0.4);
  background:
    linear-gradient(180deg, rgba(16, 24, 14, 0.94), rgba(8, 12, 8, 0.96));
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.45);
  align-self: center;
}

.weapon-pose-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.55rem;
}

.weapon-pose-head h3 {
  font-size: 0.95rem;
  letter-spacing: 0.18em;
  font-weight: 500;
  color: var(--text);
}

.weapon-pose-close {
  width: 2rem;
  height: 2rem;
  border: 1px solid rgba(107, 143, 78, 0.35);
  background: transparent;
  color: var(--text-dim);
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
}

.weapon-pose-close:hover {
  color: var(--text);
  border-color: var(--accent);
}

.weapon-pose-hint {
  font-size: 0.72rem;
  color: var(--text-dim);
  line-height: 1.55;
  margin-bottom: 0.9rem;
}

.weapon-pose-hint kbd {
  display: inline-block;
  padding: 0.05rem 0.35rem;
  border: 1px solid rgba(107, 143, 78, 0.45);
  background: rgba(20, 30, 18, 0.8);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
}

.weapon-pose-field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 0.85rem;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--text-dim);
}

.weapon-pose-field select,
.weapon-pose-grid input {
  width: 100%;
  padding: 0.45rem 0.55rem;
  border: 1px solid rgba(107, 143, 78, 0.35);
  background: rgba(8, 12, 8, 0.9);
  color: var(--text);
  font-size: 0.85rem;
}

.weapon-pose-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.55rem 0.65rem;
  margin-bottom: 1rem;
}

.weapon-pose-grid label {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: #7a9070;
}

.weapon-pose-actions {
  display: flex;
  gap: 0.65rem;
  justify-content: flex-end;
}

.weapon-pose-actions .btn-primary,
.weapon-pose-actions .btn-secondary {
  margin: 0;
  min-height: 2.5rem;
  padding: 0.55rem 1.2rem;
  font-size: 0.78rem;
}

.shop-content {
  width: min(92vw, 560px);
}

.shop-tabs {
  display: flex;
  width: 100%;
  border: 1px solid rgba(107, 143, 78, 0.25);
  background: rgba(10, 15, 10, 0.5);
}

.shop-tab {
  flex: 1;
  padding: 0.55rem;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: #607050;
  cursor: pointer;
  letter-spacing: 0.16em;
  font-size: 0.78rem;
  transition: all 0.2s;
}

.shop-tab + .shop-tab {
  border-left: 1px solid rgba(107, 143, 78, 0.2);
}

.shop-tab.active {
  background: rgba(61, 90, 42, 0.35);
  border-bottom-color: var(--accent);
  color: var(--text);
}

.shop-panel {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1.1rem 1.25rem;
}

.shop-card {
  padding: 0.85rem 0.95rem;
  border: 1px solid rgba(107, 143, 78, 0.22);
  background: rgba(8, 12, 8, 0.55);
}

.shop-card-premium {
  border-color: rgba(201, 162, 39, 0.45);
  background:
    linear-gradient(135deg, rgba(74, 8, 24, 0.22) 0%, rgba(8, 12, 8, 0.65) 55%),
    rgba(8, 12, 8, 0.55);
  box-shadow: inset 0 1px 0 rgba(201, 162, 39, 0.15);
}

.shop-card-head {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin-bottom: 0.35rem;
}

.shop-card-head h4 {
  font-size: 0.92rem;
  letter-spacing: 0.12em;
  color: var(--text);
  font-weight: 500;
}

.shop-card-tag {
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  padding: 0.15rem 0.45rem;
  border: 1px solid rgba(107, 143, 78, 0.35);
  color: var(--accent);
}

.shop-card-premium .shop-card-tag {
  border-color: rgba(201, 162, 39, 0.45);
  color: #d4af37;
}

.shop-card-desc {
  font-size: 0.78rem;
  line-height: 1.55;
  color: var(--text-dim);
  margin-bottom: 0.65rem;
}

.shop-card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.shop-price {
  font-size: 0.75rem;
  color: #c9a227;
  letter-spacing: 0.08em;
}

.shop-price.free {
  color: var(--accent);
}

.shop-action {
  padding: 0.4rem 0.85rem;
  background: rgba(107, 143, 78, 0.15);
  border: 1px solid var(--accent);
  color: var(--text);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: all 0.2s;
}

.shop-action:hover:not(.disabled):not(:disabled) {
  background: #6b8f4e;
}

.shop-action.disabled,
.shop-action:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.shop-badge.equipped {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--accent);
}

.shop-coming-soon {
  font-size: 0.85rem;
  color: var(--text-dim);
  text-align: center;
  padding: 1.5rem 0.5rem;
  letter-spacing: 0.08em;
}

.shop-message {
  min-height: 1.2rem;
  font-size: 0.78rem;
  color: var(--accent);
  text-align: center;
  letter-spacing: 0.06em;
}

.shop-message:empty {
  display: none;
}

#shop-back-btn {
  margin-top: 0.15rem;
}

#end-screen {
  z-index: 15;
}

/* ── HUD ── */
#hud {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 5;
  display: none;
}

.hud-top {
  position: absolute;
  top: 1.5rem;
  left: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.hud-bottom-bars {
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: min(92vw, 720px);
  padding: 0.85rem 1.35rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  background: linear-gradient(180deg, transparent 0%, rgba(6, 10, 8, 0.55) 30%, rgba(6, 10, 8, 0.88) 100%);
  backdrop-filter: blur(8px);
  border-top: 1px solid var(--border);
}

.hud-panel {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.85rem;
}

.hud-panel .label {
  width: 2.2rem;
  flex-shrink: 0;
  color: #a0b090;
  letter-spacing: 0.12em;
  font-weight: 500;
}

.bar-track {
  width: 120px;
  height: 6px;
  background: rgba(20, 30, 18, 0.8);
  border: 1px solid rgba(107, 143, 78, 0.2);
}

.bar-track-wide {
  flex: 1;
  height: 12px;
  background: rgba(0, 0, 0, 0.45);
  border: 1px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
  box-shadow: inset 0 1px 4px rgba(0, 0, 0, 0.45);
}

.hud-panel span:last-child {
  min-width: 2.2rem;
  text-align: right;
  color: var(--text);
  font-weight: 600;
  font-size: 0.9rem;
}

.bar-fill {
  height: 100%;
  transition: width 0.25s ease-out;
  border-radius: 999px;
}

.bar-fill.health {
  background: linear-gradient(90deg, #1a5a1a, #3dcc3d);
  box-shadow: 0 0 10px rgba(77, 204, 77, 0.45);
}

.bar-fill.armor {
  background: linear-gradient(90deg, #1a3a6a, #4a9ae8);
  box-shadow: 0 0 10px rgba(74, 154, 232, 0.4);
}
.bar-fill.extract { background: linear-gradient(90deg, #2a6b2a, #66ff66); }

#extract-progress {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, 80px);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.75rem;
}

#extract-progress .bar-track {
  width: 160px;
}

#reload-hint {
  position: absolute;
  top: 55%;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.85rem;
  color: rgba(200, 220, 180, 0.8);
  letter-spacing: 0.2em;
}

.currency-panel {
  position: fixed;
  top: 1.35rem;
  left: 1.35rem;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.45rem 0.85rem 0.45rem 0.5rem;
  background: rgba(8, 12, 8, 0.72);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(212, 175, 55, 0.28);
  border-radius: 999px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
  z-index: 25;
  pointer-events: none;
}

.currency-panel.hidden {
  display: none;
}

.coin-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid #d4af37;
  background: radial-gradient(circle at 32% 28%, #fff3c4 0%, #e8c547 45%, #b8860b 100%);
  color: #5c4308;
  font-weight: 800;
  font-size: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow:
    inset 0 1px 2px rgba(255, 255, 255, 0.55),
    0 2px 10px rgba(232, 197, 71, 0.25);
  font-family: "Helvetica Neue", "Arial", sans-serif;
}

.currency-info {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  min-width: 3.5rem;
}

.currency-label {
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  color: #c9a227;
}

#coin-amount {
  font-size: 1.15rem;
  font-weight: 700;
  color: #f5e6a8;
  line-height: 1;
  transition: transform 0.15s, color 0.15s;
}

#coin-amount.gain {
  transform: scale(1.15);
  color: #fff8dc;
}

/* ── 准星 ── */
#crosshair {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 24px;
  height: 24px;
}

.ch-line {
  position: absolute;
  background: rgba(200, 220, 180, 0.6);
}

.ch-top, .ch-bottom {
  width: 1px;
  height: 6px;
  left: 50%;
  transform: translateX(-50%);
}

.ch-top { top: 0; }
.ch-bottom { bottom: 0; }

.ch-left, .ch-right {
  width: 6px;
  height: 1px;
  top: 50%;
  transform: translateY(-50%);
}

.ch-left { left: 0; }
.ch-right { right: 0; }

.ch-dot {
  position: absolute;
  width: 2px;
  height: 2px;
  background: rgba(200, 220, 180, 0.8);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
}

#scope-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.12s;
}

#scope-overlay.active {
  opacity: 1;
}

.scope-ring {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at center, transparent 0 26vmin, rgba(0, 0, 0, 0.15) 27vmin, rgba(0, 0, 0, 0.92) 28vmin),
    radial-gradient(circle at center, transparent 0 27vmin, rgba(80, 120, 80, 0.35) 27.2vmin, transparent 27.6vmin);
}

.scope-reticle {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 40px;
  height: 40px;
  transform: translate(-50%, -50%);
}

.sr-v, .sr-h {
  position: absolute;
  background: rgba(120, 200, 120, 0.85);
}

.sr-v {
  width: 1px;
  height: 100%;
  left: 50%;
  transform: translateX(-50%);
}

.sr-h {
  width: 100%;
  height: 1px;
  top: 50%;
  transform: translateY(-50%);
}

#hit-marker {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 30px;
  height: 30px;
  opacity: 0;
  pointer-events: none;
}

#hit-marker.show {
  animation: hitFlash 0.15s ease-out;
}

@keyframes hitFlash {
  0% { opacity: 1; transform: translate(-50%, -50%) scale(1.2); }
  100% { opacity: 0; transform: translate(-50%, -50%) scale(0.8); }
}

#hit-marker::before,
#hit-marker::after {
  content: "";
  position: absolute;
  background: #ff4444;
}

#hit-marker::before {
  width: 8px;
  height: 2px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(45deg);
}

#hit-marker::after {
  width: 8px;
  height: 2px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(-45deg);
}

.hud-bottom {
  position: absolute;
  bottom: 5.5rem;
  right: 2rem;
  text-align: right;
}

.ammo-panel {
  font-size: 2.5rem;
  font-weight: 200;
  color: #e8f0e0;
  letter-spacing: 0.05em;
}

.ammo-sep {
  font-size: 1.5rem;
  color: #607050;
}

#ammo-reserve {
  font-size: 1.5rem;
  color: #7a9070;
}

.weapon-name {
  font-size: 0.7rem;
  color: #607050;
  letter-spacing: 0.15em;
  margin-top: 0.2rem;
}

#mission-status {
  position: absolute;
  bottom: 5.5rem;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.8rem;
  color: rgba(107, 143, 78, 0.7);
  letter-spacing: 0.15em;
}

#damage-overlay {
  position: fixed;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 40%, rgba(180, 20, 20, 0.5) 100%);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.1s;
}

#damage-overlay.active {
  opacity: 1;
}

/* ── 结束界面 ── */
.end-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  width: min(92vw, 480px);
}

#end-screen h2,
.end-content h2 {
  font-size: clamp(1.6rem, 4vw, 2rem);
  font-weight: 200;
  letter-spacing: 0.3em;
  color: var(--accent);
  text-shadow: 0 0 30px var(--accent-glow);
}

#end-screen p,
.end-content p {
  color: var(--text-dim);
  font-size: 0.9rem;
  text-align: center;
  line-height: 1.6;
}

#score-submit {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
}

#submit-score-btn {
  margin-top: 0;
  padding: 0.65rem 1.8rem;
  font-size: 0.82rem;
}

#submit-status {
  font-size: 0.75rem;
  color: var(--accent);
}

#leaderboard {
  width: 100%;
}

#restart-btn {
  margin-top: 0.25rem;
}

#leaderboard-list {
  list-style: none;
  font-size: 0.8rem;
}

#leaderboard-list li.empty {
  justify-content: center;
  color: var(--text-dim);
}

#leaderboard h3 {
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  color: var(--accent);
  margin-bottom: 0.65rem;
}

#leaderboard-list li {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.45rem 0;
  border-bottom: 1px solid rgba(107, 143, 78, 0.08);
  color: var(--text-dim);
}

#leaderboard-list .rank {
  width: 1.4rem;
  height: 1.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  background: rgba(124, 179, 86, 0.12);
  color: var(--accent);
  font-weight: 700;
  font-size: 0.75rem;
}

#leaderboard-list .name {
  flex: 1;
  color: var(--text);
}

#leaderboard-list .detail {
  font-size: 0.7rem;
  color: #607050;
}

/* ── 战友系统 ── */
#friends-screen {
  z-index: 18;
}

.friends-content {
  width: min(94vw, 640px);
  max-height: min(92vh, 860px);
  overflow-y: auto;
  gap: 0.85rem;
}

.friends-btn {
  position: relative;
}

.friends-badge {
  position: absolute;
  top: -0.35rem;
  right: -0.35rem;
  min-width: 1.1rem;
  height: 1.1rem;
  padding: 0 0.28rem;
  border-radius: 999px;
  background: #a05050;
  border: 1px solid rgba(220, 140, 140, 0.55);
  color: #f2dede;
  font-size: 0.62rem;
  line-height: 1.1rem;
  text-align: center;
  letter-spacing: 0;
}

.friends-panel {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  padding: 1rem 1.05rem 1.1rem;
  background:
    linear-gradient(180deg, rgba(24, 36, 22, 0.92), rgba(10, 16, 10, 0.88)),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 2px,
      rgba(107, 143, 78, 0.03) 2px,
      rgba(107, 143, 78, 0.03) 4px
    );
  border: 1px solid rgba(107, 143, 78, 0.35);
  box-shadow: inset 0 1px 0 rgba(180, 210, 150, 0.08), 0 18px 40px rgba(0, 0, 0, 0.35);
}

.friends-add-form {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.friends-add-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  font-size: 0.68rem;
  color: var(--accent);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.friends-add-hint {
  color: #6f8664;
  letter-spacing: 0.04em;
  text-transform: none;
  font-size: 0.72rem;
}

.friends-add-row {
  display: flex;
  gap: 0.55rem;
}

.friends-add-row input {
  flex: 1;
  padding: 0.78rem 0.9rem;
  background: rgba(4, 8, 4, 0.9);
  border: 1px solid rgba(107, 143, 78, 0.4);
  color: var(--text);
  font-size: 0.92rem;
}

.friends-add-row input:focus {
  outline: none;
  border-color: #8fb56a;
  box-shadow: 0 0 0 1px rgba(143, 181, 106, 0.25);
}

.friends-add-row .btn-secondary {
  margin: 0;
  padding: 0.78rem 1.15rem;
  letter-spacing: 0.12em;
  white-space: nowrap;
}

.friends-message {
  min-height: 1.15rem;
  margin: 0;
  padding: 0.45rem 0.55rem;
  font-size: 0.76rem;
  color: #c5d8b4;
  letter-spacing: 0.04em;
  text-align: left;
  background: rgba(61, 90, 42, 0.18);
  border-left: 2px solid rgba(107, 143, 78, 0.7);
}

.friends-message:empty {
  display: none;
}

.friends-message.error {
  color: #e0b0b0;
  background: rgba(90, 35, 35, 0.22);
  border-left-color: #a06060;
}

.friends-section {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.friends-section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid rgba(107, 143, 78, 0.2);
}

.friends-section-head h3 {
  margin: 0;
  font-size: 0.92rem;
  letter-spacing: 0.12em;
  color: var(--text);
  font-weight: 600;
}

.friends-section-head h3 em {
  font-style: normal;
  margin-left: 0.35rem;
  color: var(--accent);
}

.friends-section-head span {
  font-size: 0.7rem;
  color: #6f8664;
  letter-spacing: 0.02em;
}

.friend-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.friend-list.search-results:empty {
  display: none;
}

.friend-card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.8rem;
  padding: 0.8rem 0.85rem;
  background: rgba(8, 12, 8, 0.72);
  border: 1px solid rgba(107, 143, 78, 0.22);
  border-left-width: 3px;
}

.friend-card-friend {
  border-left-color: #6b8f4e;
}

.friend-card-incoming {
  border-left-color: #c4a35a;
  background: rgba(40, 32, 12, 0.35);
}

.friend-card-outgoing {
  border-left-color: #5a7f9a;
  background: rgba(12, 24, 32, 0.4);
}

.friend-card-search {
  border-left-color: rgba(107, 143, 78, 0.55);
}

.friend-avatar {
  width: 2.4rem;
  height: 2.4rem;
  display: grid;
  place-items: center;
  background: linear-gradient(160deg, rgba(107, 143, 78, 0.35), rgba(20, 30, 18, 0.9));
  border: 1px solid rgba(143, 181, 106, 0.35);
  color: #d7e8c8;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0;
}

.friend-meta {
  display: flex;
  flex-direction: column;
  gap: 0.12rem;
  min-width: 0;
}

.friend-eyebrow {
  font-size: 0.66rem;
  color: #8fa87a;
  letter-spacing: 0.08em;
}

.friend-card-incoming .friend-eyebrow {
  color: #d2b56a;
}

.friend-card-outgoing .friend-eyebrow {
  color: #7fadc8;
}

.friend-name {
  color: var(--text);
  font-size: 0.98rem;
  font-weight: 650;
  letter-spacing: 0.02em;
}

.friend-user {
  font-size: 0.72rem;
  color: #7a9470;
}

.friend-stats {
  margin-top: 0.12rem;
  font-size: 0.68rem;
  color: #607050;
}

.friend-actions {
  display: flex;
  flex-direction: column;
  flex-wrap: nowrap;
  gap: 0.35rem;
  justify-content: center;
  align-items: stretch;
  flex-shrink: 0;
}

.friend-action {
  padding: 0.38rem 0.7rem;
  background: rgba(20, 30, 18, 0.55);
  border: 1px solid rgba(107, 143, 78, 0.4);
  color: var(--text-dim);
  cursor: pointer;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  white-space: nowrap;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.friend-action:hover {
  color: var(--text);
  border-color: var(--accent);
  background: rgba(61, 90, 42, 0.35);
}

.friend-action.primary {
  border-color: var(--accent);
  color: var(--text);
  background: rgba(107, 143, 78, 0.22);
}

.friend-action.danger {
  border-color: rgba(160, 112, 112, 0.45);
  color: #c89090;
  background: rgba(60, 24, 24, 0.25);
}

.friend-action.danger:hover {
  background: rgba(80, 30, 30, 0.4);
}

.friend-badge {
  padding: 0.35rem 0.55rem;
  font-size: 0.68rem;
  color: #8fa87a;
  letter-spacing: 0.06em;
  border: 1px dashed rgba(107, 143, 78, 0.35);
  text-align: center;
}

.friend-empty {
  padding: 1rem 0.75rem;
  text-align: center;
  font-size: 0.78rem;
  color: #6f8664;
  letter-spacing: 0.04em;
  background: rgba(8, 12, 8, 0.45);
  border: 1px dashed rgba(107, 143, 78, 0.22);
}

@media (max-width: 560px) {
  .friend-card {
    grid-template-columns: auto 1fr;
  }

  .friend-actions {
    grid-column: 1 / -1;
    flex-direction: row;
    justify-content: flex-end;
  }

  .friends-add-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .friends-section-head {
    flex-direction: column;
    align-items: flex-start;
  }
}

.hidden {
  display: none !important;
}