* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  user-select: none;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

html, body {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  height: 100dvh;
  overflow: hidden;
  background-color: #8fd5ff;
  touch-action: none;
  -webkit-user-select: none;
  user-select: none;
  overscroll-behavior: none;
}

#canvas-container {
  width: 100%;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
  z-index: 1;
}

/* =========================================
   游戏主菜单与模式选择 (Start Screen)
   ========================================= */
#start-screen {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at center, rgba(16, 22, 38, 0.88) 0%, rgba(8, 12, 22, 0.96) 100%);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 150;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

.menu-container {
  width: 100%;
  max-width: 440px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 32px;
  padding: 32px 24px;
  text-align: center;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
  gap: 20px;
  animation: modal-pop 0.4s cubic-bezier(0.18, 0.89, 0.32, 1.28) forwards;
}

.menu-brand .brand-badge {
  display: inline-block;
  background: rgba(0, 255, 204, 0.15);
  color: #00ffcc;
  font-size: 12px;
  font-weight: 800;
  padding: 4px 12px;
  border-radius: 20px;
  border: 1px solid rgba(0, 255, 204, 0.3);
  margin-bottom: 8px;
  letter-spacing: 1px;
}

.menu-brand .game-logo {
  font-size: 38px;
  font-weight: 900;
  letter-spacing: 2px;
  background: linear-gradient(135deg, #ffffff 0%, #00ffcc 60%, #00b4d8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 4px 12px rgba(0, 255, 204, 0.4));
  margin-bottom: 4px;
}

.menu-brand .game-tagline {
  color: #94a3b8;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.5px;
}

/* 模式卡片容器 */
.mode-selection {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.mode-card {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.05);
  border: 2px solid rgba(255, 255, 255, 0.12);
  cursor: pointer;
  transition: all 0.22s ease;
  text-align: left;
}

.mode-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(0, 255, 204, 0.4);
  transform: translateY(-2px);
}

.mode-card.selected {
  background: linear-gradient(135deg, rgba(0, 255, 204, 0.14) 0%, rgba(0, 180, 216, 0.08) 100%);
  border-color: #00ffcc;
  box-shadow: 0 0 20px rgba(0, 255, 204, 0.3);
}

.mode-badge {
  position: absolute;
  top: -10px;
  right: 16px;
  font-size: 11px;
  font-weight: 800;
  padding: 2px 10px;
  border-radius: 10px;
  text-transform: uppercase;
}

.badge-fire {
  background: #ff3b30;
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(255, 59, 48, 0.4);
}

.badge-zen {
  background: #34c759;
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(52, 199, 89, 0.4);
}

.mode-icon {
  font-size: 32px;
  width: 44px;
  height: 44px;
  display: flex;
  justify-content: center;
  align-items: center;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 14px;
}

.mode-info {
  flex: 1;
}

.mode-title {
  color: #ffffff;
  font-size: 17px;
  font-weight: 800;
  margin-bottom: 2px;
}

.mode-card.selected .mode-title {
  color: #00ffcc;
}

.mode-desc {
  color: #94a3b8;
  font-size: 12px;
  line-height: 1.4;
  font-weight: 500;
}

.check-mark {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.3);
  display: flex;
  justify-content: center;
  align-items: center;
  color: transparent;
  font-weight: 900;
  font-size: 12px;
}

.mode-card.selected .check-mark {
  background: #00ffcc;
  border-color: #00ffcc;
  color: #0d1b2a;
}

.control-hints {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  color: #64748b;
  font-size: 12px;
  font-weight: 600;
}

.btn-start-game {
  width: 100%;
  padding: 16px;
  border-radius: 20px;
  border: none;
  background: linear-gradient(135deg, #00ffcc 0%, #00b4d8 100%);
  color: #0a1128;
  font-size: 19px;
  font-weight: 900;
  cursor: pointer;
  box-shadow: 0 8px 25px rgba(0, 255, 204, 0.5);
  transition: transform 0.12s, box-shadow 0.2s;
  letter-spacing: 1px;
}

.btn-start-game:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(0, 255, 204, 0.7);
}

.btn-start-game:active {
  transform: translateY(1px);
}

.best-score-display {
  color: #cbd5e1;
  font-size: 14px;
  font-weight: 700;
}

#menu-best-score {
  color: #f1c40f;
  font-size: 18px;
  font-weight: 900;
}

/* =========================================
   游戏 HUD 界面层
   ========================================= */
#hud {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 10;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 14px 16px;
}

/* 顶栏控制组 */
.top-bar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  width: 100%;
}

/* 倒计时与名次卡片 */
.match-info-card {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(18, 22, 34, 0.76);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 8px 16px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
}

.timer {
  font-size: 24px;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: 1px;
}

.timer.urgent {
  color: #ff3b30;
  animation: pulse-urgent 0.5s infinite alternate;
}

@keyframes pulse-urgent {
  from { transform: scale(1); text-shadow: 0 0 4px #ff3b30; }
  to { transform: scale(1.15); text-shadow: 0 0 16px #ff3b30; }
}

.divider {
  width: 2px;
  height: 20px;
  background: rgba(255, 255, 255, 0.2);
}

.rank-badge {
  font-size: 15px;
  font-weight: 700;
  color: #ecf0f1;
}

.rank-num {
  font-size: 20px;
  color: #00ffcc;
  font-weight: 900;
}

/* 玩家成长进度条卡片 (顶部中间) */
.growth-card {
  position: absolute;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  min-width: 200px;
}

.level-info {
  display: flex;
  align-items: center;
  gap: 8px;
}

.badge-tag {
  background: linear-gradient(135deg, #00ffcc, #00b4d8);
  color: #0d1b2a;
  font-weight: 900;
  font-size: 13px;
  padding: 2px 10px;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 255, 204, 0.4);
}

.level-name {
  color: #ffffff;
  font-size: 14px;
  font-weight: 700;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.6);
}

.progress-track {
  width: 100%;
  height: 10px;
  background: rgba(18, 22, 34, 0.6);
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.4);
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #00ffcc, #38ef7d);
  border-radius: 6px;
  transition: width 0.15s ease-out;
  box-shadow: 0 0 10px #00ffcc;
}

/* 右上角实时排行榜 */
.leaderboard-card {
  background: rgba(18, 22, 34, 0.76);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 16px;
  padding: 8px 12px;
  min-width: 155px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
}

.lb-title {
  font-size: 12px;
  font-weight: 800;
  color: #a0aec0;
  text-transform: uppercase;
  margin-bottom: 6px;
  letter-spacing: 0.5px;
}

.lb-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  font-weight: 600;
  color: #ecf0f1;
  padding: 3px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.lb-row:last-child {
  border-bottom: none;
}

.lb-name {
  max-width: 90px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lb-me {
  color: #00ffcc;
  font-weight: 800;
}

.lb-me .lb-score {
  color: #00ffcc;
}

.lb-score {
  font-weight: 700;
  color: #f1c40f;
  margin-left: 8px;
}

/* 底栏控件组 */
.bottom-bar {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  width: 100%;
}

.diameter-badge {
  background: rgba(18, 22, 34, 0.76);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 6px 14px;
  border-radius: 16px;
  color: #ffffff;
  font-size: 14px;
  font-weight: 700;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.action-buttons {
  display: flex;
  gap: 10px;
}

.interactive-btn {
  pointer-events: auto;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(18, 22, 34, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 20px;
  cursor: pointer;
  transition: transform 0.1s, background 0.2s;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.interactive-btn:active {
  transform: scale(0.92);
  background: rgba(0, 255, 204, 0.3);
}

/* =========================================
   中央事件通知横幅 (升级、被吞、击杀)
   ========================================= */
.alert-banner {
  position: absolute;
  top: 75px;
  left: 50%;
  transform: translateX(-50%) translateY(-30px);
  opacity: 0;
  pointer-events: none;
  background: rgba(18, 22, 34, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 16px;
  padding: 10px 24px;
  text-align: center;
  transition: all 0.3s cubic-bezier(0.18, 0.89, 0.32, 1.28);
  border: 2px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.alert-banner.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

.alert-title {
  font-size: 18px;
  font-weight: 900;
  color: #ffffff;
}

.alert-sub {
  font-size: 13px;
  font-weight: 600;
  color: #d1d5db;
  margin-top: 2px;
}

.alert-levelup {
  border-color: #00ffcc;
  box-shadow: 0 0 20px rgba(0, 255, 204, 0.4);
}
.alert-levelup .alert-title { color: #00ffcc; }

.alert-danger {
  border-color: #ff3b30;
  box-shadow: 0 0 20px rgba(255, 59, 48, 0.4);
}
.alert-danger .alert-title { color: #ff3b30; }

.alert-success {
  border-color: #ffcc00;
  box-shadow: 0 0 20px rgba(255, 204, 0, 0.4);
}
.alert-success .alert-title { color: #ffcc00; }

/* =========================================
   飘字浮动连击特效容器
   ========================================= */
#combo-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  overflow: hidden;
  z-index: 12;
}

.floating-score {
  position: absolute;
  font-size: 16px;
  font-weight: 900;
  color: #00ffcc;
  text-shadow: 0 2px 4px rgba(0,0,0,0.8);
  transform: translate(-50%, -50%);
  animation: float-up-fade 0.9s cubic-bezier(0.2, 0.9, 0.3, 1) forwards;
  pointer-events: none;
}

.floating-score.score-big {
  font-size: 24px;
  color: #ffdd00;
  text-shadow: 0 0 10px #ff9900;
}

@keyframes float-up-fade {
  0% { transform: translate(-50%, -20%) scale(0.6); opacity: 0; }
  25% { transform: translate(-50%, -60%) scale(1.2); opacity: 1; }
  100% { transform: translate(-50%, -150%) scale(1.0); opacity: 0; }
}

/* =========================================
   抖音手游专属常驻虚拟摇杆 UI
   ========================================= */
#joystick-zone {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 200px;
  height: 200px;
  pointer-events: none;
  z-index: 25;
}

#joystick-base {
  position: absolute;
  bottom: calc(30px + env(safe-area-inset-bottom, 0px));
  left: calc(30px + env(safe-area-inset-left, 0px));
  width: 130px;
  height: 130px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(20, 30, 45, 0.45) 0%, rgba(10, 16, 28, 0.65) 100%);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 2px solid rgba(0, 255, 204, 0.35);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4), inset 0 0 15px rgba(0, 255, 204, 0.15);
  pointer-events: none;
  transition: border-color 0.2s, box-shadow 0.2s, opacity 0.2s;
  opacity: 0.7;
}

#joystick-base.active {
  border-color: #00ffcc;
  box-shadow: 0 0 25px rgba(0, 255, 204, 0.5), inset 0 0 20px rgba(0, 255, 204, 0.3);
}

.joystick-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 70px;
  height: 70px;
  margin-left: -35px;
  margin-top: -35px;
  border-radius: 50%;
  border: 1px dashed rgba(255, 255, 255, 0.25);
  pointer-events: none;
}

#joystick-knob {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 52px;
  height: 52px;
  margin-left: -26px;
  margin-top: -26px;
  border-radius: 50%;
  background: linear-gradient(135deg, #00ffcc 0%, #00b4d8 100%);
  box-shadow: 0 4px 15px rgba(0, 255, 204, 0.7);
  pointer-events: none;
  transition: transform 0.05s ease-out;
  display: flex;
  justify-content: center;
  align-items: center;
}

.knob-core {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.7);
  box-shadow: 0 0 8px #ffffff;
}

/* =========================================
   游戏结算弹窗 (Game Over Modal)
   ========================================= */
#gameover-modal {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(10, 14, 24, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  z-index: 100;
  display: none;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

.modal-content {
  background: linear-gradient(180deg, #1e2638 0%, #131824 100%);
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
  border-radius: 28px;
  width: 100%;
  max-width: 420px;
  padding: 28px 24px;
  text-align: center;
  animation: modal-pop 0.4s cubic-bezier(0.18, 0.89, 0.32, 1.28) forwards;
}

@keyframes modal-pop {
  0% { transform: scale(0.85); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

.modal-header h2 {
  font-size: 26px;
  font-weight: 900;
  color: #ffffff;
  margin-bottom: 4px;
  background: linear-gradient(90deg, #ffffff, #00ffcc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.modal-header p {
  color: #94a3b8;
  font-size: 14px;
  margin-bottom: 20px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}

.stat-item {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 16px;
  padding: 12px 10px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.stat-item.highlight-rank {
  grid-column: span 2;
  background: linear-gradient(135deg, rgba(0, 255, 204, 0.15), rgba(0, 180, 216, 0.15));
  border-color: rgba(0, 255, 204, 0.3);
}

.stat-label {
  font-size: 13px;
  color: #94a3b8;
  font-weight: 600;
}

.stat-val {
  font-size: 24px;
  font-weight: 900;
  color: #ffffff;
  margin-top: 4px;
}

.stat-item.highlight-rank .stat-val {
  font-size: 34px;
  color: #00ffcc;
  text-shadow: 0 0 15px rgba(0, 255, 204, 0.6);
}

.modal-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.btn-restart {
  pointer-events: auto;
  width: 100%;
  padding: 16px;
  border-radius: 20px;
  border: none;
  background: linear-gradient(135deg, #00ffcc, #00b4d8);
  color: #0a1128;
  font-size: 18px;
  font-weight: 900;
  cursor: pointer;
  box-shadow: 0 6px 20px rgba(0, 255, 204, 0.4);
  transition: transform 0.1s, box-shadow 0.2s;
}

.btn-restart:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 255, 204, 0.6);
}

.btn-restart:active {
  transform: translateY(1px);
}

.btn-secondary {
  pointer-events: auto;
  width: 100%;
  padding: 14px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.14);
}

/* =========================================
   菜单顶部状态栏与副导航
   ========================================= */
.menu-top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
}

.user-coins-pill {
  background: rgba(255, 215, 0, 0.16);
  border: 1px solid rgba(255, 215, 0, 0.4);
  color: #ffd700;
  font-size: 14px;
  font-weight: 800;
  padding: 6px 14px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  gap: 4px;
  box-shadow: 0 4px 12px rgba(255, 215, 0, 0.2);
}

.menu-nav-btns {
  display: flex;
  gap: 6px;
}

.menu-sub-btn {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #ffffff;
  padding: 6px 12px;
  border-radius: 14px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
}

.menu-sub-btn:hover {
  background: rgba(255, 255, 255, 0.18);
  transform: translateY(-1px);
}

/* =========================================
   全屏覆盖模态框 (Skins / Upgrades / Achievements / Pause)
   ========================================= */
.overlay-modal {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(8, 12, 22, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  z-index: 200;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 16px;
}

.modal-box {
  width: 100%;
  max-width: 480px;
  max-height: 85vh;
  overflow-y: auto;
  background: linear-gradient(180deg, #182032 0%, #0f1522 100%);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 28px;
  padding: 24px;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.7);
  display: flex;
  flex-direction: column;
  gap: 16px;
  animation: modal-pop 0.35s cubic-bezier(0.18, 0.89, 0.32, 1.28) forwards;
}

.modal-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-head h3 {
  font-size: 20px;
  font-weight: 900;
  color: #ffffff;
}

.close-x-btn {
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: #94a3b8;
  font-size: 16px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}

.close-x-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  color: #ffffff;
}

.modal-subtext {
  font-size: 13px;
  color: #94a3b8;
  margin-top: -8px;
}

/* 皮肤网格 */
.skins-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 12px;
}

.skin-card {
  background: rgba(255, 255, 255, 0.04);
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  padding: 14px 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  transition: all 0.2s;
}

.skin-card:hover {
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
}

.skin-card.selected {
  border-color: #00ffcc;
  background: rgba(0, 255, 204, 0.08);
  box-shadow: 0 0 15px rgba(0, 255, 204, 0.3);
}

.skin-circle {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.5);
}

.skin-name {
  font-size: 14px;
  font-weight: 800;
  color: #ffffff;
}

.skin-desc {
  font-size: 11px;
  color: #94a3b8;
  line-height: 1.3;
  text-align: center;
}

.skin-action-btn {
  margin-top: 4px;
  width: 100%;
  padding: 6px 0;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 800;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
}

.skin-action-btn.btn-equipped {
  background: #00ffcc;
  color: #0a1128;
}

.skin-action-btn.btn-equip {
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
}

.skin-action-btn.btn-buy {
  background: linear-gradient(135deg, #ffd700, #ffaa00);
  color: #1a1200;
}

/* 升级强化列表 */
.upgrades-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.upgrade-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 14px;
}

.upgrade-icon {
  font-size: 32px;
  background: rgba(255, 255, 255, 0.06);
  padding: 10px;
  border-radius: 16px;
}

.upgrade-info {
  flex: 1;
  text-align: left;
}

.upgrade-title-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.upgrade-name {
  font-size: 15px;
  font-weight: 800;
  color: #ffffff;
}

.upgrade-level-tag {
  font-size: 12px;
  color: #00ffcc;
  font-weight: 800;
}

.upgrade-desc {
  font-size: 12px;
  color: #94a3b8;
  margin: 4px 0 6px;
}

.upgrade-meter {
  display: flex;
  gap: 4px;
}

.meter-block {
  flex: 1;
  height: 6px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.1);
}

.meter-block.filled {
  background: #00ffcc;
  box-shadow: 0 0 6px rgba(0, 255, 204, 0.6);
}

.upgrade-btn {
  background: linear-gradient(135deg, #ffd700, #ffaa00);
  border: none;
  color: #1a1200;
  font-size: 13px;
  font-weight: 800;
  padding: 8px 12px;
  border-radius: 14px;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 0.1s;
}

.upgrade-btn:hover {
  transform: scale(1.04);
}

.upgrade-btn:disabled {
  background: rgba(255, 255, 255, 0.08);
  color: #64748b;
  cursor: not-allowed;
}

/* 成就徽章列表 */
.achievements-grid {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.ach-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 18px;
  padding: 12px 14px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.ach-card.unlocked {
  border-color: rgba(255, 215, 0, 0.4);
  background: rgba(255, 215, 0, 0.06);
}

.ach-icon-box {
  font-size: 26px;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
}

.ach-info {
  flex: 1;
  text-align: left;
}

.ach-title {
  font-size: 14px;
  font-weight: 800;
  color: #ffffff;
}

.ach-desc {
  font-size: 12px;
  color: #94a3b8;
  margin-top: 2px;
}

.ach-reward {
  font-size: 13px;
  font-weight: 800;
  color: #ffd700;
  white-space: nowrap;
}

/* =========================================
   HUD 右侧雷达与看板组合
   ========================================= */
.hud-right-wrapper {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  pointer-events: auto;
}

.radar-box {
  width: 84px;
  height: 84px;
  background: rgba(14, 20, 32, 0.75);
  border: 1px solid rgba(0, 255, 204, 0.3);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

#radar-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* 局内增益道具浮动提示条目 */
.active-buffs-list {
  position: absolute;
  top: 96px;
  left: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 50;
  pointer-events: none;
}

.buff-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(14, 20, 32, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 6px 12px;
  border-radius: 20px;
  color: #ffffff;
  font-size: 13px;
  font-weight: 800;
  backdrop-filter: blur(8px);
  animation: slide-in-left 0.25s ease-out forwards;
}

@keyframes slide-in-left {
  0% { transform: translateX(-20px); opacity: 0; }
  100% { transform: translateX(0); opacity: 1; }
}

/* 成就横幅 Toast */
.achievement-toast {
  position: absolute;
  top: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, rgba(25, 30, 48, 0.95), rgba(15, 20, 35, 0.98));
  border: 1.5px solid #ffd700;
  box-shadow: 0 10px 30px rgba(255, 215, 0, 0.4);
  border-radius: 24px;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 300;
  animation: toast-drop 0.4s cubic-bezier(0.18, 0.89, 0.32, 1.28) forwards;
}

@keyframes toast-drop {
  0% { transform: translate(-50%, -40px); opacity: 0; }
  100% { transform: translate(-50%, 0); opacity: 1; }
}

.ach-toast-title {
  font-size: 14px;
  font-weight: 900;
  color: #ffd700;
}

.ach-toast-sub {
  font-size: 12px;
  color: #e2e8f0;
}

.ach-toast-reward {
  font-size: 14px;
  font-weight: 900;
  color: #00ffcc;
}

/* 暂停面板选项 */
.pause-box {
  max-width: 360px;
  text-align: center;
}

.pause-settings {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 12px 0;
}

.setting-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(255, 255, 255, 0.05);
  padding: 12px 16px;
  border-radius: 16px;
  color: #ffffff;
  font-size: 14px;
  font-weight: 700;
}

.toggle-pill {
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: #94a3b8;
  padding: 6px 14px;
  border-radius: 14px;
  font-size: 13px;
  font-weight: 800;
  cursor: pointer;
  transition: all 0.2s;
}

.toggle-pill.active {
  background: #00ffcc;
  color: #0a1128;
}

.pause-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* 抖音原生专属发布与广告按钮 */
.btn-douyin-share {
  pointer-events: auto;
  width: 100%;
  padding: 15px;
  border-radius: 20px;
  border: none;
  background: linear-gradient(135deg, #fe2c55 0%, #25f4ee 100%);
  color: #ffffff;
  font-size: 16px;
  font-weight: 900;
  cursor: pointer;
  box-shadow: 0 6px 20px rgba(254, 44, 85, 0.4);
  transition: transform 0.1s, box-shadow 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-douyin-share:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(254, 44, 85, 0.6);
}

.btn-douyin-share:active {
  transform: translateY(1px);
}

.btn-douyin-ad {
  pointer-events: auto;
  width: 100%;
  padding: 13px;
  border-radius: 20px;
  border: 1.5px solid rgba(255, 215, 0, 0.5);
  background: rgba(255, 215, 0, 0.12);
  color: #ffd700;
  font-size: 15px;
  font-weight: 800;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-douyin-ad:hover {
  background: rgba(255, 215, 0, 0.22);
  border-color: #ffd700;
}

/* =========================================
   赞助作者与特权兑换弹窗 (Sponsor & VIP Modal)
   ========================================= */
#sponsor-modal {
  z-index: 300 !important;
}

.btn-sponsor-nav {
  background: linear-gradient(135deg, rgba(255, 215, 0, 0.25) 0%, rgba(255, 170, 0, 0.35) 100%) !important;
  border-color: rgba(255, 215, 0, 0.5) !important;
  color: #ffd700 !important;
  font-weight: 800 !important;
  box-shadow: 0 0 10px rgba(255, 215, 0, 0.2);
}

.sponsor-box {
  max-width: 480px;
  width: 90%;
  max-height: 85vh;
  overflow-y: auto;
}

.sponsor-tabs {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  padding-bottom: 10px;
}

.tab-btn {
  flex: 1;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  color: #94a3b8;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
}

.tab-btn.active {
  background: linear-gradient(135deg, #00ffcc 0%, #00b4d8 100%);
  color: #0b101e;
  border-color: #00ffcc;
  box-shadow: 0 4px 14px rgba(0, 255, 204, 0.3);
}

.redeem-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  padding: 16px;
  margin-bottom: 16px;
}

.redeem-title {
  color: #e2e8f0;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 10px;
  text-align: left;
}

.redeem-input-row {
  display: flex;
  gap: 8px;
}

.redeem-input-row input {
  flex: 1;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(0, 0, 0, 0.4);
  color: #ffffff;
  font-size: 15px;
  outline: none;
  font-weight: 700;
  letter-spacing: 1px;
}

.redeem-input-row input:focus {
  border-color: #00ffcc;
  box-shadow: 0 0 10px rgba(0, 255, 204, 0.3);
}

.btn-redeem {
  padding: 0 18px;
  border-radius: 12px;
  background: linear-gradient(135deg, #ffd700 0%, #ff9500 100%);
  border: none;
  color: #0b101e;
  font-size: 14px;
  font-weight: 800;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 0.1s, box-shadow 0.2s;
}

.btn-redeem:active {
  transform: scale(0.96);
}

.redeem-msg {
  margin-top: 10px;
  font-size: 13px;
  font-weight: 700;
  min-height: 18px;
  text-align: left;
}

.redeem-msg.success {
  color: #00ffcc;
}

.redeem-msg.error {
  color: #ff4757;
}

.perks-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.perk-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  padding: 12px;
  text-align: left;
}

.perk-item.highlight-item {
  border-color: rgba(255, 0, 255, 0.4);
  background: linear-gradient(135deg, rgba(255, 0, 255, 0.08) 0%, rgba(0, 255, 255, 0.08) 100%);
}

.perk-icon {
  font-size: 24px;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
}

.perk-info .perk-title {
  color: #f1f5f9;
  font-size: 14px;
  font-weight: 800;
  margin-bottom: 2px;
}

.perk-info .perk-desc {
  color: #94a3b8;
  font-size: 12px;
}

.donate-card {
  padding: 10px 0;
  text-align: center;
}

.donate-intro {
  color: #cbd5e1;
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 18px;
  text-align: left;
}

.donate-tiers {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
}

.tier-pill {
  flex: 1;
  background: rgba(255, 215, 0, 0.1);
  border: 1px dashed rgba(255, 215, 0, 0.4);
  color: #ffd700;
  padding: 10px 8px;
  border-radius: 12px;
  font-size: 13px;
  font-weight: 700;
}

.donate-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
}

.btn-afdian {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 14px;
  border-radius: 16px;
  background: linear-gradient(135deg, #9466ff 0%, #6830ff 100%);
  color: #ffffff;
  font-size: 15px;
  font-weight: 800;
  text-decoration: none;
  box-shadow: 0 6px 20px rgba(148, 102, 255, 0.4);
  transition: transform 0.1s, box-shadow 0.2s;
}

.btn-afdian:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(148, 102, 255, 0.6);
}

.donate-tip {
  color: #94a3b8;
  font-size: 12px;
  line-height: 1.5;
}

/* 支付宝赞助卡片 */
.alipay-sponsor-card {
  background: rgba(22, 119, 255, 0.08);
  border: 1px solid rgba(22, 119, 255, 0.35);
  border-radius: 18px;
  padding: 16px;
  margin-top: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.alipay-header {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  justify-content: center;
}

.alipay-title {
  color: #1677ff;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.5px;
}

.alipay-badge {
  background: rgba(22, 119, 255, 0.2);
  color: #4096ff;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 10px;
}

.alipay-qr-box {
  width: 200px;
  max-width: 80%;
  aspect-ratio: 1 / 1;
  background: #ffffff;
  border-radius: 16px;
  border: 2px solid rgba(22, 119, 255, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 8px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 15px rgba(22, 119, 255, 0.25);
}

.alipay-qr-box img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 8px;
}

.alipay-fallback {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 6px;
}

.alipay-fallback .fallback-icon {
  font-size: 28px;
}

.alipay-fallback .fallback-text {
  font-size: 11px;
  color: #94a3b8;
  line-height: 1.4;
}

.alipay-tip {
  font-size: 12px;
  color: #ffd700;
  line-height: 1.4;
  text-align: center;
}

/* =========================================
   移动端与全端响应式深度适配 (Mobile & Responsive)
   ========================================= */

/* 1. 竖屏手机适配 (宽度 <= 520px) */
@media (max-width: 520px) {
  #hud {
    padding: calc(6px + env(safe-area-inset-top, 0px)) calc(8px + env(safe-area-inset-right, 0px)) calc(8px + env(safe-area-inset-bottom, 0px)) calc(8px + env(safe-area-inset-left, 0px));
  }

  .top-bar {
    gap: 4px;
    align-items: center;
  }

  /* 倒计时与名次卡片紧凑化 */
  .match-info-card {
    padding: 4px 8px;
    gap: 6px;
    border-radius: 14px;
  }

  .timer {
    font-size: 16px;
    letter-spacing: 0.5px;
  }

  .divider {
    height: 14px;
  }

  .rank-badge {
    font-size: 11px;
  }

  .rank-num {
    font-size: 16px;
  }

  /* 顶部中间等级成长条：移动端居中置于顶栏下方，彻底避免与两侧碰撞挤压 */
  .growth-card {
    top: calc(48px + env(safe-area-inset-top, 0px));
    min-width: 140px;
    max-width: 180px;
    gap: 3px;
  }

  .badge-tag {
    font-size: 10px;
    padding: 1px 6px;
    border-radius: 8px;
  }

  .level-name {
    font-size: 11px;
  }

  .progress-track {
    height: 6px;
  }

  .achievement-toast {
    top: calc(88px + env(safe-area-inset-top, 0px));
    max-width: 92vw;
    padding: 8px 14px;
    border-radius: 16px;
  }

  .alert-banner {
    top: calc(95px + env(safe-area-inset-top, 0px));
  }

  /* 右侧雷达与排行榜 */
  .hud-right-wrapper {
    gap: 4px;
  }

  .radar-box {
    width: 48px;
    height: 48px;
    border-radius: 12px;
  }

  .leaderboard-card {
    padding: 4px 8px;
    min-width: 95px;
    border-radius: 12px;
  }

  .lb-title {
    font-size: 9px;
    margin-bottom: 2px;
  }

  .lb-row {
    font-size: 10px;
    padding: 1px 0;
  }

  .lb-name {
    max-width: 50px;
  }

  .lb-score {
    font-size: 10px;
    margin-left: 4px;
  }

  /* 底部状态条 */
  .bottom-bar {
    padding-bottom: env(safe-area-inset-bottom, 0px);
  }

  .diameter-badge {
    padding: 4px 10px;
    font-size: 11px;
    border-radius: 12px;
  }

  .interactive-btn {
    width: 38px;
    height: 38px;
    font-size: 16px;
  }

  /* 主菜单与模式选择移动端紧凑化 */
  #start-screen {
    padding: calc(10px + env(safe-area-inset-top, 0px)) calc(12px + env(safe-area-inset-right, 0px)) calc(12px + env(safe-area-inset-bottom, 0px)) calc(12px + env(safe-area-inset-left, 0px));
  }

  .menu-container {
    padding: 20px 16px;
    gap: 12px;
    border-radius: 24px;
    max-height: 92dvh;
    overflow-y: auto;
  }

  .menu-top-bar {
    gap: 6px;
  }

  .user-coins-pill {
    padding: 4px 10px;
    font-size: 12px;
  }

  .menu-sub-btn {
    padding: 4px 8px;
    font-size: 11px;
  }

  .menu-brand .brand-badge {
    font-size: 10px;
    padding: 2px 8px;
    margin-bottom: 4px;
  }

  .menu-brand .game-logo {
    font-size: 26px;
    margin-bottom: 2px;
  }

  .menu-brand .game-tagline {
    font-size: 12px;
  }

  .mode-selection {
    gap: 8px;
  }

  .mode-card {
    padding: 10px 12px;
    gap: 10px;
    border-radius: 16px;
  }

  .mode-icon {
    width: 36px;
    height: 36px;
    font-size: 22px;
  }

  .mode-title {
    font-size: 14px;
  }

  .mode-desc {
    font-size: 11px;
    line-height: 1.3;
  }

  .control-hints {
    font-size: 11px;
  }

  .btn-start-game {
    padding: 14px;
    font-size: 17px;
    border-radius: 18px;
  }

  /* 弹窗通用紧凑化 */
  .modal-box {
    max-width: 94vw;
    max-height: 88dvh;
    padding: 18px 14px;
    gap: 12px;
    border-radius: 20px;
  }
}

/* 2. 横屏手机适配 (高度 <= 520px) */
@media (max-height: 520px) {
  #start-screen {
    padding: 6px 16px;
    align-items: center;
  }

  .menu-container {
    max-width: 680px;
    max-height: 98dvh;
    padding: 8px 16px;
    gap: 6px;
    border-radius: 16px;
    overflow-y: auto;
  }

  .menu-top-bar {
    margin-bottom: 0;
  }

  .menu-brand .brand-badge {
    display: none;
  }

  .menu-brand .game-logo {
    font-size: 20px;
    margin-bottom: 0;
  }

  .menu-brand .game-tagline {
    display: none;
  }

  .mode-selection {
    flex-direction: row;
    gap: 8px;
  }

  .mode-card {
    flex: 1;
    padding: 6px 10px;
    gap: 8px;
    border-radius: 12px;
  }

  .mode-badge {
    top: -6px;
    right: 8px;
    font-size: 9px;
    padding: 1px 6px;
  }

  .mode-icon {
    width: 28px;
    height: 28px;
    font-size: 18px;
  }

  .mode-title {
    font-size: 12px;
  }

  .mode-desc {
    font-size: 10px;
    line-height: 1.2;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .control-hints {
    display: none;
  }

  .btn-start-game {
    padding: 8px 14px;
    font-size: 15px;
    border-radius: 12px;
  }

  .best-score-display {
    font-size: 11px;
  }

  /* 局内 HUD 横屏优化 */
  #hud {
    padding: 6px 12px;
  }

  .radar-box {
    width: 52px;
    height: 52px;
  }

  .leaderboard-card {
    padding: 4px 8px;
    min-width: 105px;
  }

  .lb-row {
    font-size: 10px;
    padding: 1px 0;
  }

  /* 弹窗横屏自适应 */
  .modal-box {
    max-height: 94dvh;
    padding: 12px 16px;
    gap: 8px;
  }

  .alipay-qr-box {
    width: 130px;
  }
}